diff --git a/bower.json b/bower.json
index f24770e5b..86bc6582d 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "mermaid",
-  "version": "0.2.10",
+  "version": "0.2.11",
   "authors": [
     "knsv <knut@sveido.com>"
   ],
diff --git a/dist/mermaid.full.js b/dist/mermaid.full.js
index f751ffcdd..83f82f8c7 100644
--- a/dist/mermaid.full.js
+++ b/dist/mermaid.full.js
@@ -31,8 +31,5559 @@ module.exports={graphlib:require("./lib/graphlib"),dagre:require("./lib/dagre"),
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 (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+/**
+ * @license
+ * Copyright (c) 2012-2013 Chris Pettitt
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+module.exports =  {
+  graphlib: require("./lib/graphlib"),
+  dagre: require("./lib/dagre"),
+  intersect: require("./lib/intersect"),
+  render: require("./lib/render"),
+  util: require("./lib/util"),
+  version: require("./lib/version")
+};
 
-},{}],2:[function(require,module,exports){
+},{"./lib/dagre":8,"./lib/graphlib":9,"./lib/intersect":10,"./lib/render":23,"./lib/util":25,"./lib/version":26}],2:[function(require,module,exports){
+var util = require("./util");
+
+module.exports = {
+  "default": normal,
+  "normal": normal,
+  "vee": vee
+};
+
+function normal(parent, id, edge, type) {
+  var marker = parent.append("marker")
+    .attr("id", id)
+    .attr("viewBox", "0 0 10 10")
+    .attr("refX", 9)
+    .attr("refY", 5)
+    .attr("markerUnits", "strokeWidth")
+    .attr("markerWidth", 8)
+    .attr("markerHeight", 6)
+    .attr("orient", "auto");
+
+  var path = marker.append("path")
+    .attr("d", "M 0 0 L 10 5 L 0 10 z")
+    .style("stroke-width", 1)
+    .style("stroke-dasharray", "1,0");
+  util.applyStyle(path, edge[type + "Style"]);
+}
+
+function vee(parent, id, edge, type) {
+  var marker = parent.append("marker")
+    .attr("id", id)
+    .attr("viewBox", "0 0 10 10")
+    .attr("refX", 9)
+    .attr("refY", 5)
+    .attr("markerUnits", "strokeWidth")
+    .attr("markerWidth", 8)
+    .attr("markerHeight", 6)
+    .attr("orient", "auto");
+
+  var path = marker.append("path")
+    .attr("d", "M 0 0 L 10 5 L 0 10 L 4 5 z")
+    .style("stroke-width", 1)
+    .style("stroke-dasharray", "1,0");
+  util.applyStyle(path, edge[type + "Style"]);
+}
+
+},{"./util":25}],3:[function(require,module,exports){
+var util = require("./util");
+
+module.exports = createClusters;
+
+function createClusters(selection, g) {
+  var clusters = g.nodes().filter(function(v) { return util.isSubgraph(g, v); }),
+      svgClusters = selection.selectAll("g.cluster")
+        .data(clusters, function(v) { return v; });
+
+  svgClusters.enter()
+    .append("g")
+      .attr("class", "cluster")
+      .style("opacity", 0)
+      .append("rect");
+  util.applyTransition(svgClusters.exit(), g)
+    .style("opacity", 0)
+    .remove();
+
+  util.applyTransition(svgClusters, g)
+    .style("opacity", 1);
+
+  util.applyTransition(svgClusters.selectAll("rect"), g)
+    .attr("width", function(v) { return g.node(v).width; })
+    .attr("height", function(v) { return g.node(v).height; })
+    .attr("x", function(v) {
+      var node = g.node(v);
+      return node.x - node.width / 2;
+    })
+    .attr("y", function(v) {
+      var node = g.node(v);
+      return node.y - node.height / 2;
+    });
+}
+
+},{"./util":25}],4:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    addLabel = require("./label/add-label"),
+    util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = createEdgeLabels;
+
+function createEdgeLabels(selection, g) {
+  var svgEdgeLabels = selection.selectAll("g.edgeLabel")
+    .data(g.edges(), function(e) { return util.edgeToId(e); })
+    .classed("update", true);
+
+  svgEdgeLabels.selectAll("*").remove();
+  svgEdgeLabels.enter()
+    .append("g")
+      .classed("edgeLabel", true)
+      .style("opacity", 0);
+  svgEdgeLabels.each(function(e) {
+    var edge = g.edge(e),
+        label = addLabel(d3.select(this), g.edge(e), 0, 0).classed("label", true),
+        bbox = label.node().getBBox();
+
+    if (edge.labelId) { label.attr("id", edge.labelId); }
+    if (!_.has(edge, "width")) { edge.width = bbox.width; }
+    if (!_.has(edge, "height")) { edge.height = bbox.height; }
+  });
+
+  util.applyTransition(svgEdgeLabels.exit(), g)
+    .style("opacity", 0)
+    .remove();
+
+  return svgEdgeLabels;
+}
+
+},{"./d3":7,"./label/add-label":18,"./lodash":20,"./util":25}],5:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    intersectNode = require("./intersect/intersect-node"),
+    util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = createEdgePaths;
+
+function createEdgePaths(selection, g, arrows) {
+  var svgPaths = selection.selectAll("g.edgePath")
+    .data(g.edges(), function(e) { return util.edgeToId(e); })
+    .classed("update", true);
+
+  enter(svgPaths, g);
+  exit(svgPaths, g);
+
+  util.applyTransition(svgPaths, g)
+    .style("opacity", 1);
+
+  svgPaths.selectAll("path.path")
+    .each(function(e) {
+      var edge = g.edge(e);
+      edge.arrowheadId = _.uniqueId("arrowhead");
+
+      var domEdge = d3.select(this)
+        .attr("marker-end", function() {
+          return "url(#" + edge.arrowheadId + ")";
+        })
+        .style("fill", "none");
+
+      util.applyTransition(domEdge, g)
+        .attr("d", function(e) { return calcPoints(g, e); });
+
+      if (edge.id) { domEdge.attr("id", edge.id); }
+      util.applyStyle(domEdge, edge.style);
+    });
+
+  svgPaths.selectAll("defs *").remove();
+  svgPaths.selectAll("defs")
+    .each(function(e) {
+      var edge = g.edge(e),
+          arrowhead = arrows[edge.arrowhead];
+      arrowhead(d3.select(this), edge.arrowheadId, edge, "arrowhead");
+    });
+
+  return svgPaths;
+}
+
+function calcPoints(g, e) {
+  var edge = g.edge(e),
+      tail = g.node(e.v),
+      head = g.node(e.w),
+      points = edge.points.slice(1, edge.points.length - 1);
+  points.unshift(intersectNode(tail, points[0]));
+  points.push(intersectNode(head, points[points.length - 1]));
+
+  return createLine(edge, points);
+}
+
+function createLine(edge, points) {
+  var line = d3.svg.line()
+    .x(function(d) { return d.x; })
+    .y(function(d) { return d.y; });
+
+  if (_.has(edge, "lineInterpolate")) {
+    line.interpolate(edge.lineInterpolate);
+  }
+
+  if (_.has(edge, "lineTension")) {
+    line.tension(Number(edge.lineTension));
+  }
+
+  return line(points);
+}
+
+function getCoords(elem) {
+  var bbox = elem.getBBox(),
+      matrix = elem.getTransformToElement(elem.ownerSVGElement)
+        .translate(bbox.width / 2, bbox.height / 2);
+  return { x: matrix.e, y: matrix.f };
+}
+
+function enter(svgPaths, g) {
+  var svgPathsEnter = svgPaths.enter()
+    .append("g")
+      .attr("class", "edgePath")
+      .style("opacity", 0);
+  svgPathsEnter.append("path")
+    .attr("class", "path")
+    .attr("d", function(e) {
+      var edge = g.edge(e),
+          sourceElem = g.node(e.v).elem,
+          points = _.range(edge.points.length).map(function() { return getCoords(sourceElem); });
+      return createLine(edge, points);
+    });
+  svgPathsEnter.append("defs");
+}
+
+function exit(svgPaths, g) {
+  var svgPathExit = svgPaths.exit();
+  util.applyTransition(svgPathExit, g)
+    .style("opacity", 0)
+    .remove();
+
+  util.applyTransition(svgPathExit.select("path.path"), g)
+    .attr("d", function(e) {
+      var source = g.node(e.v);
+
+      if (source) {
+        var points = _.range(this.pathSegList.length).map(function() { return source; });
+        return createLine({}, points);
+      } else {
+        return d3.select(this).attr("d");
+      }
+    });
+}
+
+},{"./d3":7,"./intersect/intersect-node":14,"./lodash":20,"./util":25}],6:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    addLabel = require("./label/add-label"),
+    util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = createNodes;
+
+function createNodes(selection, g, shapes) {
+  var simpleNodes = g.nodes().filter(function(v) { return !util.isSubgraph(g, v); });
+  var svgNodes = selection.selectAll("g.node")
+    .data(simpleNodes, function(v) { return v; })
+    .classed("update", true);
+
+  svgNodes.selectAll("*").remove();
+  svgNodes.enter()
+    .append("g")
+      .attr("class", "node")
+      .style("opacity", 0);
+  svgNodes.each(function(v) {
+    var node = g.node(v),
+        thisGroup = d3.select(this),
+        labelGroup = thisGroup.append("g").attr("class", "label"),
+        labelDom = addLabel(labelGroup, node),
+        shape = shapes[node.shape],
+        bbox = labelDom.node().getBBox();
+
+    node.elem = this;
+
+    if (node.id) { thisGroup.attr("id", node.id); }
+    if (node.labelId) { labelGroup.attr("id", node.labelId); }
+    util.applyClass(thisGroup, node.class, (thisGroup.classed("update") ? "update " : "") + "node");
+
+    if (_.has(node, "width")) { bbox.width = node.width; }
+    if (_.has(node, "height")) { bbox.height = node.height; }
+
+    bbox.width += node.paddingLeft + node.paddingRight;
+    bbox.height += node.paddingTop + node.paddingBottom;
+    labelGroup.attr("transform", "translate(" +
+      ((node.paddingLeft - node.paddingRight) / 2) + "," +
+      ((node.paddingTop - node.paddingBottom) / 2) + ")");
+
+    var shapeSvg = shape(d3.select(this), bbox, node);
+    util.applyStyle(shapeSvg, node.style);
+
+    var shapeBBox = shapeSvg.node().getBBox();
+    node.width = shapeBBox.width;
+    node.height = shapeBBox.height;
+  });
+
+  util.applyTransition(svgNodes.exit(), g)
+    .style("opacity", 0)
+    .remove();
+
+  return svgNodes;
+}
+
+},{"./d3":7,"./label/add-label":18,"./lodash":20,"./util":25}],7:[function(require,module,exports){
+// Stub to get D3 either via NPM or from the global object
+module.exports = window.d3;
+
+},{}],8:[function(require,module,exports){
+/* global window */
+
+var dagre;
+
+if (require) {
+  try {
+    dagre = require("dagre");
+  } catch (e) {}
+}
+
+if (!dagre) {
+  dagre = window.dagre;
+}
+
+module.exports = dagre;
+
+},{"dagre":27}],9:[function(require,module,exports){
+/* global window */
+
+var graphlib;
+
+if (require) {
+  try {
+    graphlib = require("graphlib");
+  } catch (e) {}
+}
+
+if (!graphlib) {
+  graphlib = window.graphlib;
+}
+
+module.exports = graphlib;
+
+},{"graphlib":77}],10:[function(require,module,exports){
+module.exports = {
+  node: require("./intersect-node"),
+  circle: require("./intersect-circle"),
+  ellipse: require("./intersect-ellipse"),
+  polygon: require("./intersect-polygon"),
+  rect: require("./intersect-rect")
+};
+
+},{"./intersect-circle":11,"./intersect-ellipse":12,"./intersect-node":14,"./intersect-polygon":15,"./intersect-rect":16}],11:[function(require,module,exports){
+var intersectEllipse = require("./intersect-ellipse");
+
+module.exports = intersectCircle;
+
+function intersectCircle(node, rx, point) {
+  return intersectEllipse(node, rx, rx, point);
+}
+
+},{"./intersect-ellipse":12}],12:[function(require,module,exports){
+module.exports = intersectEllipse;
+
+function intersectEllipse(node, rx, ry, point) {
+  // Formulae from: http://mathworld.wolfram.com/Ellipse-LineIntersection.html
+
+  var cx = node.x;
+  var cy = node.y;
+
+  var px = cx - point.x;
+  var py = cy - point.y;
+
+  var det = Math.sqrt(rx * rx * py * py + ry * ry * px * px);
+
+  var dx = Math.abs(rx * ry * px / det);
+  if (point.x < cx) {
+    dx = -dx;
+  }
+  var dy = Math.abs(rx * ry * py / det);
+  if (point.y < cy) {
+    dy = -dy;
+  }
+
+  return {x: cx + dx, y: cy + dy};
+}
+
+
+},{}],13:[function(require,module,exports){
+module.exports = intersectLine;
+
+/*
+ * Returns the point at which two lines, p and q, intersect or returns
+ * undefined if they do not intersect.
+ */
+function intersectLine(p1, p2, q1, q2) {
+  // Algorithm from J. Avro, (ed.) Graphics Gems, No 2, Morgan Kaufmann, 1994,
+  // p7 and p473.
+
+  var a1, a2, b1, b2, c1, c2;
+  var r1, r2 , r3, r4;
+  var denom, offset, num;
+  var x, y;
+
+  // Compute a1, b1, c1, where line joining points 1 and 2 is F(x,y) = a1 x +
+  // b1 y + c1 = 0.
+  a1 = p2.y - p1.y;
+  b1 = p1.x - p2.x;
+  c1 = (p2.x * p1.y) - (p1.x * p2.y);
+
+  // Compute r3 and r4.
+  r3 = ((a1 * q1.x) + (b1 * q1.y) + c1);
+  r4 = ((a1 * q2.x) + (b1 * q2.y) + c1);
+
+  // Check signs of r3 and r4. If both point 3 and point 4 lie on
+  // same side of line 1, the line segments do not intersect.
+  if ((r3 !== 0) && (r4 !== 0) && sameSign(r3, r4)) {
+    return /*DONT_INTERSECT*/;
+  }
+
+  // Compute a2, b2, c2 where line joining points 3 and 4 is G(x,y) = a2 x + b2 y + c2 = 0
+  a2 = q2.y - q1.y;
+  b2 = q1.x - q2.x;
+  c2 = (q2.x * q1.y) - (q1.x * q2.y);
+
+  // Compute r1 and r2
+  r1 = (a2 * p1.x) + (b2 * p1.yy) + c2;
+  r2 = (a2 * p2.x) + (b2 * p2.y) + c2;
+
+  // Check signs of r1 and r2. If both point 1 and point 2 lie
+  // on same side of second line segment, the line segments do
+  // not intersect.
+  if ((r1 !== 0) && (r2 !== 0) && (sameSign(r1, r2))) {
+    return /*DONT_INTERSECT*/;
+  }
+
+  // Line segments intersect: compute intersection point.
+  denom = (a1 * b2) - (a2 * b1);
+  if (denom === 0) {
+    return /*COLLINEAR*/;
+  }
+
+  offset = Math.abs(denom / 2);
+
+  // The denom/2 is to get rounding instead of truncating. It
+  // is added or subtracted to the numerator, depending upon the
+  // sign of the numerator.
+  num = (b1 * c2) - (b2 * c1);
+  x = (num < 0) ? ((num - offset) / denom) : ((num + offset) / denom);
+
+  num = (a2 * c1) - (a1 * c2);
+  y = (num < 0) ? ((num - offset) / denom) : ((num + offset) / denom);
+
+  return { x: x, y: y };
+}
+
+function sameSign(r1, r2) {
+  return r1 * r2 > 0;
+}
+
+},{}],14:[function(require,module,exports){
+module.exports = intersectNode;
+
+function intersectNode(node, point) {
+  return node.intersect(point);
+}
+
+},{}],15:[function(require,module,exports){
+var intersectLine = require("./intersect-line");
+
+module.exports = intersectPolygon;
+
+/*
+ * Returns the point ({x, y}) at which the point argument intersects with the
+ * node argument assuming that it has the shape specified by polygon.
+ */
+function intersectPolygon(node, polyPoints, point) {
+  var x1 = node.x;
+  var y1 = node.y;
+
+  var intersections = [];
+
+  var minX = Number.POSITIVE_INFINITY,
+      minY = Number.POSITIVE_INFINITY;
+  polyPoints.forEach(function(entry) {
+    minX = Math.min(minX, entry.x);
+    minY = Math.min(minY, entry.y);
+  });
+
+  var left = x1 - node.width / 2 - minX;
+  var top =  y1 - node.height / 2 - minY;
+
+  for (var i = 0; i < polyPoints.length; i++) {
+    var p1 = polyPoints[i];
+    var p2 = polyPoints[i < polyPoints.length - 1 ? i + 1 : 0];
+    var intersect = intersectLine(node, point,
+      {x: left + p1.x, y: top + p1.y}, {x: left + p2.x, y: top + p2.y});
+    if (intersect) {
+      intersections.push(intersect);
+    }
+  }
+
+  if (!intersections.length) {
+    console.log("NO INTERSECTION FOUND, RETURN NODE CENTER", node);
+    return node;
+  }
+
+  if (intersections.length > 1) {
+    // More intersections, find the one nearest to edge end point
+    intersections.sort(function(p, q) {
+      var pdx = p.x - point.x,
+          pdy = p.y - point.y,
+          distp = Math.sqrt(pdx * pdx + pdy * pdy),
+
+          qdx = q.x - point.x,
+          qdy = q.y - point.y,
+          distq = Math.sqrt(qdx * qdx + qdy * qdy);
+
+      return (distp < distq) ? -1 : (distp === distq ? 0 : 1);
+    });
+  }
+  return intersections[0];
+}
+
+},{"./intersect-line":13}],16:[function(require,module,exports){
+module.exports = intersectRect;
+
+function intersectRect(node, point) {
+  var x = node.x;
+  var y = node.y;
+
+  // Rectangle intersection algorithm from:
+  // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes
+  var dx = point.x - x;
+  var dy = point.y - y;
+  var w = node.width / 2;
+  var h = node.height / 2;
+
+  var sx, sy;
+  if (Math.abs(dy) * w > Math.abs(dx) * h) {
+    // Intersection is top or bottom of rect.
+    if (dy < 0) {
+      h = -h;
+    }
+    sx = dy === 0 ? 0 : h * dx / dy;
+    sy = h;
+  } else {
+    // Intersection is left or right of rect.
+    if (dx < 0) {
+      w = -w;
+    }
+    sx = w;
+    sy = dx === 0 ? 0 : w * dy / dx;
+  }
+
+  return {x: x + sx, y: y + sy};
+}
+
+},{}],17:[function(require,module,exports){
+var util = require("../util");
+
+module.exports = addHtmlLabel;
+
+function addHtmlLabel(root, node) {
+  var fo = root
+    .append("foreignObject")
+      .attr("width", "100000");
+
+  var div = fo
+    .append("xhtml:div");
+
+  var label = node.label;
+  switch(typeof label) {
+    case "function":
+      div.insert(label);
+      break;
+    case "object":
+      // Currently we assume this is a DOM object.
+      div.insert(function() { return label; });
+      break;
+    default: div.html(label);
+  }
+
+  util.applyStyle(div, node.labelStyle);
+  div.style("display", "inline-block");
+  // Fix for firefox
+  div.style("white-space", "nowrap");
+
+  // TODO find a better way to get dimensions for foreignObjects...
+  var w, h;
+  div
+    .each(function() {
+      w = this.clientWidth;
+      h = this.clientHeight;
+    });
+
+  fo
+    .attr("width", w)
+    .attr("height", h);
+
+  return fo;
+}
+
+},{"../util":25}],18:[function(require,module,exports){
+var addTextLabel = require("./add-text-label"),
+    addHtmlLabel = require("./add-html-label");
+
+module.exports = addLabel;
+
+function addLabel(root, node) {
+  var label = node.label;
+  var labelSvg = root.append("g");
+
+  // Allow the label to be a string, a function that returns a DOM element, or
+  // a DOM element itself.
+  if (typeof label !== "string" || node.labelType === "html") {
+    addHtmlLabel(labelSvg, node);
+  } else {
+    addTextLabel(labelSvg, node);
+  }
+
+  var labelBBox = labelSvg.node().getBBox();
+  labelSvg.attr("transform",
+                "translate(" + (-labelBBox.width / 2) + "," + (-labelBBox.height / 2) + ")");
+
+  return labelSvg;
+}
+
+},{"./add-html-label":17,"./add-text-label":19}],19:[function(require,module,exports){
+var util = require("../util");
+
+module.exports = addTextLabel;
+
+/*
+ * Attaches a text label to the specified root. Handles escape sequences.
+ */
+function addTextLabel(root, node) {
+  var domNode = root.append("text");
+
+  var lines = processEscapeSequences(node.label).split("\n");
+  for (var i = 0; i < lines.length; i++) {
+    domNode
+      .append("tspan")
+        .attr("xml:space", "preserve")
+        .attr("dy", "1em")
+        .attr("x", "1")
+        .text(lines[i]);
+  }
+
+  util.applyStyle(domNode, node.labelStyle);
+
+  return domNode;
+}
+
+function processEscapeSequences(text) {
+  var newText = "",
+      escaped = false,
+      ch;
+  for (var i = 0; i < text.length; ++i) {
+    ch = text[i];
+    if (escaped) {
+      switch(ch) {
+        case "n": newText += "\n"; break;
+        default: newText += ch;
+      }
+      escaped = false;
+    } else if (ch === "\\") {
+      escaped = true;
+    } else {
+      newText += ch;
+    }
+  }
+  return newText;
+}
+
+},{"../util":25}],20:[function(require,module,exports){
+/* global window */
+
+var lodash;
+
+if (require) {
+  try {
+    lodash = require("lodash");
+  } catch (e) {}
+}
+
+if (!lodash) {
+  lodash = window._;
+}
+
+module.exports = lodash;
+
+},{"lodash":101}],21:[function(require,module,exports){
+"use strict";
+
+var util = require("./util"),
+    d3 = require("./d3"),
+    _ = require("./lodash");
+
+module.exports = positionEdgeLabels;
+
+function positionEdgeLabels(selection, g) {
+  var created = selection.filter(function() { return !d3.select(this).classed("update"); });
+
+  function translate(e) {
+    var edge = g.edge(e);
+    return _.has(edge, "x") ? "translate(" + edge.x + "," + edge.y + ")" : "";
+  }
+
+  created.attr("transform", translate);
+
+  util.applyTransition(selection, g)
+    .style("opacity", 1)
+    .attr("transform", translate);
+}
+
+},{"./d3":7,"./lodash":20,"./util":25}],22:[function(require,module,exports){
+"use strict";
+
+var util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = positionNodes;
+
+function positionNodes(selection, g) {
+  var created = selection.filter(function() { return !d3.select(this).classed("update"); });
+
+  function translate(v) {
+    var node = g.node(v);
+    return "translate(" + node.x + "," + node.y + ")";
+  }
+
+  created.attr("transform", translate);
+
+  util.applyTransition(selection, g)
+    .style("opacity", 1)
+    .attr("transform", translate);
+}
+
+},{"./d3":7,"./util":25}],23:[function(require,module,exports){
+var _ = require("./lodash"),
+    layout = require("./dagre").layout;
+
+module.exports = render;
+
+// This design is based on http://bost.ocks.org/mike/chart/.
+function render() {
+  var createNodes = require("./create-nodes"),
+      createClusters = require("./create-clusters"),
+      createEdgeLabels = require("./create-edge-labels"),
+      createEdgePaths = require("./create-edge-paths"),
+      positionNodes = require("./position-nodes"),
+      positionEdgeLabels = require("./position-edge-labels"),
+      shapes = require("./shapes"),
+      arrows = require("./arrows");
+
+  var fn = function(svg, g) {
+    preProcessGraph(g);
+
+    var outputGroup = createOrSelectGroup(svg, "output"),
+        clustersGroup = createOrSelectGroup(outputGroup, "clusters"),
+        edgePathsGroup = createOrSelectGroup(outputGroup, "edgePaths"),
+        edgeLabels = createEdgeLabels(createOrSelectGroup(outputGroup, "edgeLabels"), g),
+        nodes = createNodes(createOrSelectGroup(outputGroup, "nodes"), g, shapes);
+
+    layout(g);
+
+    positionNodes(nodes, g);
+    positionEdgeLabels(edgeLabels, g);
+    createEdgePaths(edgePathsGroup, g, arrows);
+    createClusters(clustersGroup, g);
+
+    postProcessGraph(g);
+  };
+
+  fn.createNodes = function(value) {
+    if (!arguments.length) return createNodes;
+    createNodes = value;
+    return fn;
+  };
+
+  fn.createClusters = function(value) {
+    if (!arguments.length) return createClusters;
+    createClusters = value;
+    return fn;
+  };
+
+  fn.createEdgeLabels = function(value) {
+    if (!arguments.length) return createEdgeLabels;
+    createEdgeLabels = value;
+    return fn;
+  };
+
+  fn.createEdgePaths = function(value) {
+    if (!arguments.length) return createEdgePaths;
+    createEdgePaths = value;
+    return fn;
+  };
+
+  fn.shapes = function(value) {
+    if (!arguments.length) return shapes;
+    shapes = value;
+    return fn;
+  };
+
+  fn.arrows = function(value) {
+    if (!arguments.length) return arrows;
+    arrows = value;
+    return fn;
+  };
+
+  return fn;
+}
+
+var NODE_DEFAULT_ATTRS = {
+  paddingLeft: 10,
+  paddingRight: 10,
+  paddingTop: 10,
+  paddingBottom: 10,
+  rx: 0,
+  ry: 0,
+  shape: "rect"
+};
+
+var EDGE_DEFAULT_ATTRS = {
+  arrowhead: "normal",
+  lineInterpolate: "linear"
+};
+
+function preProcessGraph(g) {
+  g.nodes().forEach(function(v) {
+    var node = g.node(v);
+    if (!_.has(node, "label")) { node.label = v; }
+
+    if (_.has(node, "paddingX")) {
+      _.defaults(node, {
+        paddingLeft: node.paddingX,
+        paddingRight: node.paddingX
+      });
+    }
+
+    if (_.has(node, "paddingY")) {
+      _.defaults(node, {
+        paddingTop: node.paddingY,
+        paddingBottom: node.paddingY
+      });
+    }
+
+    if (_.has(node, "padding")) {
+      _.defaults(node, {
+        paddingLeft: node.padding,
+        paddingRight: node.padding,
+        paddingTop: node.padding,
+        paddingBottom: node.padding
+      });
+    }
+
+    _.defaults(node, NODE_DEFAULT_ATTRS);
+
+    _.each(["paddingLeft", "paddingRight", "paddingTop", "paddingBottom"], function(k) {
+      node[k] = Number(node[k]);
+    });
+
+    // Save dimensions for restore during post-processing
+    if (_.has(node, "width")) { node._prevWidth = node.width; }
+    if (_.has(node, "height")) { node._prevHeight = node.height; }
+  });
+
+  g.edges().forEach(function(e) {
+    var edge = g.edge(e);
+    if (!_.has(edge, "label")) { edge.label = ""; }
+    _.defaults(edge, EDGE_DEFAULT_ATTRS);
+  });
+}
+
+function postProcessGraph(g) {
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+
+    // Restore original dimensions
+    if (_.has(node, "_prevWidth")) {
+      node.width = node._prevWidth;
+    } else {
+      delete node.width;
+    }
+
+    if (_.has(node, "_prevHeight")) {
+      node.height = node._prevHeight;
+    } else {
+      delete node.height;
+    }
+
+    delete node._prevWidth;
+    delete node._prevHeight;
+  });
+}
+
+function createOrSelectGroup(root, name) {
+  var selection = root.select("g." + name);
+  if (selection.empty()) {
+    selection = root.append("g").attr("class", name);
+  }
+  return selection;
+}
+
+},{"./arrows":2,"./create-clusters":3,"./create-edge-labels":4,"./create-edge-paths":5,"./create-nodes":6,"./dagre":8,"./lodash":20,"./position-edge-labels":21,"./position-nodes":22,"./shapes":24}],24:[function(require,module,exports){
+"use strict";
+
+var intersectRect = require("./intersect/intersect-rect"),
+    intersectEllipse = require("./intersect/intersect-ellipse"),
+    intersectCircle = require("./intersect/intersect-circle");
+
+module.exports = {
+  rect: rect,
+  ellipse: ellipse,
+  circle: circle
+};
+
+function rect(parent, bbox, node) {
+  var shapeSvg = parent.insert("rect", ":first-child")
+        .attr("rx", node.rx)
+        .attr("ry", node.ry)
+        .attr("x", -bbox.width / 2)
+        .attr("y", -bbox.height / 2)
+        .attr("width", bbox.width)
+        .attr("height", bbox.height);
+
+  node.intersect = function(point) {
+    return intersectRect(node, point);
+  };
+
+  return shapeSvg;
+}
+
+function ellipse(parent, bbox, node) {
+  var rx = bbox.width / 2,
+      ry = bbox.height / 2,
+      shapeSvg = parent.insert("ellipse", ":first-child")
+        .attr("x", -bbox.width / 2)
+        .attr("y", -bbox.height / 2)
+        .attr("rx", rx)
+        .attr("ry", ry);
+
+  node.intersect = function(point) {
+    return intersectEllipse(node, rx, ry, point);
+  };
+
+  return shapeSvg;
+}
+
+function circle(parent, bbox, node) {
+  var r = Math.max(bbox.width, bbox.height) / 2,
+      shapeSvg = parent.insert("circle", ":first-child")
+        .attr("x", -bbox.width / 2)
+        .attr("y", -bbox.height / 2)
+        .attr("r", r);
+
+  node.intersect = function(point) {
+    return intersectCircle(node, r, point);
+  };
+
+  return shapeSvg;
+}
+
+},{"./intersect/intersect-circle":11,"./intersect/intersect-ellipse":12,"./intersect/intersect-rect":16}],25:[function(require,module,exports){
+var _ = require("./lodash");
+
+// Public utility functions
+module.exports = {
+  isSubgraph: isSubgraph,
+  edgeToId: edgeToId,
+  applyStyle: applyStyle,
+  applyClass: applyClass,
+  applyTransition: applyTransition
+};
+
+/*
+ * Returns true if the specified node in the graph is a subgraph node. A
+ * subgraph node is one that contains other nodes.
+ */
+function isSubgraph(g, v) {
+  return !!g.children(v).length;
+}
+
+function edgeToId(e) {
+  return escapeId(e.v) + ":" + escapeId(e.w) + ":" + escapeId(e.name);
+}
+
+var ID_DELIM = /:/g;
+function escapeId(str) {
+  return str ? String(str).replace(ID_DELIM, "\\:") : "";
+}
+
+function applyStyle(dom, styleFn) {
+  if (styleFn) {
+    dom.attr("style", styleFn);
+  }
+}
+
+function applyClass(dom, classFn, otherClasses) {
+  if (classFn) {
+    dom
+      .attr("class", classFn)
+      .attr("class", otherClasses + " " + dom.attr("class"));
+  }
+}
+
+function applyTransition(selection, g) {
+  var graph = g.graph();
+
+  if (_.isPlainObject(graph)) {
+    var transition = graph.transition;
+    if (_.isFunction(transition)) {
+      return transition(selection);
+    }
+  }
+
+  return selection;
+}
+
+},{"./lodash":20}],26:[function(require,module,exports){
+module.exports = "0.3.2";
+
+},{}],27:[function(require,module,exports){
+/*
+Copyright (c) 2012-2014 Chris Pettitt
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+module.exports = {
+  graphlib: require("./lib/graphlib"),
+
+  layout: require("./lib/layout"),
+  debug: require("./lib/debug"),
+  util: {
+    time: require("./lib/util").time,
+    notime: require("./lib/util").notime
+  },
+  version: require("./lib/version")
+};
+
+},{"./lib/debug":32,"./lib/graphlib":33,"./lib/layout":35,"./lib/util":55,"./lib/version":56}],28:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    greedyFAS = require("./greedy-fas");
+
+module.exports = {
+  run: run,
+  undo: undo
+};
+
+function run(g) {
+  var fas = (g.graph().acyclicer === "greedy"
+                ? greedyFAS(g, weightFn(g))
+                : dfsFAS(g));
+  _.each(fas, function(e) {
+    var label = g.edge(e);
+    g.removeEdge(e);
+    label.forwardName = e.name;
+    label.reversed = true;
+    g.setEdge(e.w, e.v, label, _.uniqueId("rev"));
+  });
+
+  function weightFn(g) {
+    return function(e) {
+      return g.edge(e).weight;
+    };
+  }
+}
+
+function dfsFAS(g) {
+  var fas = [],
+      stack = {},
+      visited = {};
+
+  function dfs(v) {
+    if (_.has(visited, v)) {
+      return;
+    }
+    visited[v] = true;
+    stack[v] = true;
+    _.each(g.outEdges(v), function(e) {
+      if (_.has(stack, e.w)) {
+        fas.push(e);
+      } else {
+        dfs(e.w);
+      }
+    });
+    delete stack[v];
+  }
+
+  _.each(g.nodes(), dfs);
+  return fas;
+}
+
+function undo(g) {
+  _.each(g.edges(), function(e) {
+    var label = g.edge(e);
+    if (label.reversed) {
+      g.removeEdge(e);
+
+      var forwardName = label.forwardName;
+      delete label.reversed;
+      delete label.forwardName;
+      g.setEdge(e.w, e.v, label, forwardName);
+    }
+  });
+}
+
+},{"./greedy-fas":34,"./lodash":36}],29:[function(require,module,exports){
+var _ = require("./lodash"),
+    util = require("./util");
+
+module.exports = addBorderSegments;
+
+function addBorderSegments(g) {
+  function dfs(v) {
+    var children = g.children(v),
+        node = g.node(v);
+    if (children.length) {
+      _.each(children, dfs);
+    }
+
+    if (_.has(node, "minRank")) {
+      node.borderLeft = [];
+      node.borderRight = [];
+      for (var rank = node.minRank, maxRank = node.maxRank + 1;
+           rank < maxRank;
+           ++rank) {
+        addBorderNode(g, "borderLeft", "_bl", v, node, rank);
+        addBorderNode(g, "borderRight", "_br", v, node, rank);
+      }
+    }
+  }
+
+  _.each(g.children(), dfs);
+}
+
+function addBorderNode(g, prop, prefix, sg, sgNode, rank) {
+  var label = { width: 0, height: 0, rank: rank },
+      prev = sgNode[prop][rank - 1],
+      curr = util.addDummyNode(g, "border", label, prefix);
+  sgNode[prop][rank] = curr;
+  g.setParent(curr, sg);
+  if (prev) {
+    g.setEdge(prev, curr, { weight: 1 });
+  }
+}
+
+},{"./lodash":36,"./util":55}],30:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash");
+
+module.exports = {
+  adjust: adjust,
+  undo: undo
+};
+
+function adjust(g) {
+  var rankDir = g.graph().rankdir.toLowerCase();
+  if (rankDir === "lr" || rankDir === "rl") {
+    swapWidthHeight(g);
+  }
+}
+
+function undo(g) {
+  var rankDir = g.graph().rankdir.toLowerCase();
+  if (rankDir === "bt" || rankDir === "rl") {
+    reverseY(g);
+  }
+
+  if (rankDir === "lr" || rankDir === "rl") {
+    swapXY(g);
+    swapWidthHeight(g);
+  }
+}
+
+function swapWidthHeight(g) {
+  _.each(g.nodes(), function(v) { swapWidthHeightOne(g.node(v)); });
+  _.each(g.edges(), function(e) { swapWidthHeightOne(g.edge(e)); });
+}
+
+function swapWidthHeightOne(attrs) {
+  var w = attrs.width;
+  attrs.width = attrs.height;
+  attrs.height = w;
+}
+
+function reverseY(g) {
+  _.each(g.nodes(), function(v) { reverseYOne(g.node(v)); });
+
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    _.each(edge.points, reverseYOne);
+    if (_.has(edge, "y")) {
+      reverseYOne(edge);
+    }
+  });
+}
+
+function reverseYOne(attrs) {
+  attrs.y = -attrs.y;
+}
+
+function swapXY(g) {
+  _.each(g.nodes(), function(v) { swapXYOne(g.node(v)); });
+
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    _.each(edge.points, swapXYOne);
+    if (_.has(edge, "x")) {
+      swapXYOne(edge);
+    }
+  });
+}
+
+function swapXYOne(attrs) {
+  var x = attrs.x;
+  attrs.x = attrs.y;
+  attrs.y = x;
+}
+
+},{"./lodash":36}],31:[function(require,module,exports){
+/*
+ * Simple doubly linked list implementation derived from Cormen, et al.,
+ * "Introduction to Algorithms".
+ */
+
+module.exports = List;
+
+function List() {
+  var sentinel = {};
+  sentinel._next = sentinel._prev = sentinel;
+  this._sentinel = sentinel;
+}
+
+List.prototype.dequeue = function() {
+  var sentinel = this._sentinel,
+      entry = sentinel._prev;
+  if (entry !== sentinel) {
+    unlink(entry);
+    return entry;
+  }
+};
+
+List.prototype.enqueue = function(entry) {
+  var sentinel = this._sentinel;
+  if (entry._prev && entry._next) {
+    unlink(entry);
+  }
+  entry._next = sentinel._next;
+  sentinel._next._prev = entry;
+  sentinel._next = entry;
+  entry._prev = sentinel;
+};
+
+List.prototype.toString = function() {
+  var strs = [],
+      sentinel = this._sentinel,
+      curr = sentinel._prev;
+  while (curr !== sentinel) {
+    strs.push(JSON.stringify(curr, filterOutLinks));
+    curr = curr._prev;
+  }
+  return "[" + strs.join(", ") + "]";
+};
+
+function unlink(entry) {
+  entry._prev._next = entry._next;
+  entry._next._prev = entry._prev;
+  delete entry._next;
+  delete entry._prev;
+}
+
+function filterOutLinks(k, v) {
+  if (k !== "_next" && k !== "_prev") {
+    return v;
+  }
+}
+
+},{}],32:[function(require,module,exports){
+var _ = require("./lodash"),
+    util = require("./util"),
+    Graph = require("./graphlib").Graph;
+
+module.exports = {
+  debugOrdering: debugOrdering
+};
+
+/* istanbul ignore next */
+function debugOrdering(g) {
+  var layerMatrix = util.buildLayerMatrix(g);
+
+  var h = new Graph({ compound: true, multigraph: true }).setGraph({});
+
+  _.each(g.nodes(), function(v) {
+    h.setNode(v, { label: v });
+    h.setParent(v, "layer" + g.node(v).rank);
+  });
+
+  _.each(g.edges(), function(e) {
+    h.setEdge(e.v, e.w, {}, e.name);
+  });
+
+  _.each(layerMatrix, function(layer, i) {
+    var layerV = "layer" + i;
+    h.setNode(layerV, { rank: "same" });
+    _.reduce(layer, function(u, v) {
+      h.setEdge(u, v, { style: "invis" });
+      return v;
+    });
+  });
+
+  return h;
+}
+
+},{"./graphlib":33,"./lodash":36,"./util":55}],33:[function(require,module,exports){
+module.exports=require(9)
+},{"graphlib":57}],34:[function(require,module,exports){
+var _ = require("./lodash"),
+    Graph = require("./graphlib").Graph,
+    List = require("./data/list");
+
+/*
+ * A greedy heuristic for finding a feedback arc set for a graph. A feedback
+ * arc set is a set of edges that can be removed to make a graph acyclic.
+ * The algorithm comes from: P. Eades, X. Lin, and W. F. Smyth, "A fast and
+ * effective heuristic for the feedback arc set problem." This implementation
+ * adjusts that from the paper to allow for weighted edges.
+ */
+module.exports = greedyFAS;
+
+var DEFAULT_WEIGHT_FN = _.constant(1);
+
+function greedyFAS(g, weightFn) {
+  if (g.nodeCount() <= 1) {
+    return [];
+  }
+  var state = buildState(g, weightFn || DEFAULT_WEIGHT_FN);
+  var results = doGreedyFAS(state.graph, state.buckets, state.zeroIdx);
+
+  // Expand multi-edges
+  return _.flatten(_.map(results, function(e) {
+    return g.outEdges(e.v, e.w);
+  }), true);
+}
+
+function doGreedyFAS(g, buckets, zeroIdx) {
+  var results = [],
+      sources = buckets[buckets.length - 1],
+      sinks = buckets[0];
+
+  var entry;
+  while (g.nodeCount()) {
+    while ((entry = sinks.dequeue()))   { removeNode(g, buckets, zeroIdx, entry); }
+    while ((entry = sources.dequeue())) { removeNode(g, buckets, zeroIdx, entry); }
+    if (g.nodeCount()) {
+      for (var i = buckets.length - 2; i > 0; --i) {
+        entry = buckets[i].dequeue();
+        if (entry) {
+          results = results.concat(removeNode(g, buckets, zeroIdx, entry, true));
+          break;
+        }
+      }
+    }
+  }
+
+  return results;
+}
+
+function removeNode(g, buckets, zeroIdx, entry, collectPredecessors) {
+  var results = collectPredecessors ? [] : undefined;
+
+  _.each(g.inEdges(entry.v), function(edge) {
+    var weight = g.edge(edge),
+        uEntry = g.node(edge.v);
+
+    if (collectPredecessors) {
+      results.push({ v: edge.v, w: edge.w });
+    }
+
+    uEntry.out -= weight;
+    assignBucket(buckets, zeroIdx, uEntry);
+  });
+
+  _.each(g.outEdges(entry.v), function(edge) {
+    var weight = g.edge(edge),
+        w = edge.w,
+        wEntry = g.node(w);
+    wEntry.in -= weight;
+    assignBucket(buckets, zeroIdx, wEntry);
+  });
+
+  g.removeNode(entry.v);
+
+  return results;
+}
+
+function buildState(g, weightFn) {
+  var fasGraph = new Graph(),
+      maxIn = 0,
+      maxOut = 0;
+
+  _.each(g.nodes(), function(v) {
+    fasGraph.setNode(v, { v: v, in: 0, out: 0 });
+  });
+
+  // Aggregate weights on nodes, but also sum the weights across multi-edges
+  // into a single edge for the fasGraph.
+  _.each(g.edges(), function(e) {
+    var prevWeight = fasGraph.edge(e.v, e.w) || 0,
+        weight = weightFn(e),
+        edgeWeight = prevWeight + weight;
+    fasGraph.setEdge(e.v, e.w, edgeWeight);
+    maxOut = Math.max(maxOut, fasGraph.node(e.v).out += weight);
+    maxIn  = Math.max(maxIn,  fasGraph.node(e.w).in  += weight);
+  });
+
+  var buckets = _.range(maxOut + maxIn + 3).map(function() { return new List(); });
+  var zeroIdx = maxIn + 1;
+
+  _.each(fasGraph.nodes(), function(v) {
+    assignBucket(buckets, zeroIdx, fasGraph.node(v));
+  });
+
+  return { graph: fasGraph, buckets: buckets, zeroIdx: zeroIdx };
+}
+
+function assignBucket(buckets, zeroIdx, entry) {
+  if (!entry.out) {
+    buckets[0].enqueue(entry);
+  } else if (!entry.in) {
+    buckets[buckets.length - 1].enqueue(entry);
+  } else {
+    buckets[entry.out - entry.in + zeroIdx].enqueue(entry);
+  }
+}
+
+},{"./data/list":31,"./graphlib":33,"./lodash":36}],35:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    acyclic = require("./acyclic"),
+    normalize = require("./normalize"),
+    rank = require("./rank"),
+    normalizeRanks = require("./util").normalizeRanks,
+    parentDummyChains = require("./parent-dummy-chains"),
+    removeEmptyRanks = require("./util").removeEmptyRanks,
+    nestingGraph = require("./nesting-graph"),
+    addBorderSegments = require("./add-border-segments"),
+    coordinateSystem = require("./coordinate-system"),
+    order = require("./order"),
+    position = require("./position"),
+    util = require("./util"),
+    Graph = require("./graphlib").Graph;
+
+module.exports = layout;
+
+function layout(g, opts) {
+  var time = opts && opts.debugTiming ? util.time : util.notime;
+  time("layout", function() {
+    var layoutGraph = time("  buildLayoutGraph",
+                               function() { return buildLayoutGraph(g); });
+    time("  runLayout",        function() { runLayout(layoutGraph, time); });
+    time("  updateInputGraph", function() { updateInputGraph(g, layoutGraph); });
+  });
+}
+
+function runLayout(g, time) {
+  time("    makeSpaceForEdgeLabels", function() { makeSpaceForEdgeLabels(g); });
+  time("    removeSelfEdges",        function() { removeSelfEdges(g); });
+  time("    acyclic",                function() { acyclic.run(g); });
+  time("    nestingGraph.run",       function() { nestingGraph.run(g); });
+  time("    rank",                   function() { rank(util.asNonCompoundGraph(g)); });
+  time("    injectEdgeLabelProxies", function() { injectEdgeLabelProxies(g); });
+  time("    removeEmptyRanks",       function() { removeEmptyRanks(g); });
+  time("    nestingGraph.cleanup",   function() { nestingGraph.cleanup(g); });
+  time("    normalizeRanks",         function() { normalizeRanks(g); });
+  time("    assignRankMinMax",       function() { assignRankMinMax(g); });
+  time("    removeEdgeLabelProxies", function() { removeEdgeLabelProxies(g); });
+  time("    normalize.run",          function() { normalize.run(g); });
+  time("    parentDummyChains",      function() { parentDummyChains(g); });
+  time("    addBorderSegments",      function() { addBorderSegments(g); });
+  time("    order",                  function() { order(g); });
+  time("    insertSelfEdges",        function() { insertSelfEdges(g); });
+  time("    adjustCoordinateSystem", function() { coordinateSystem.adjust(g); });
+  time("    position",               function() { position(g); });
+  time("    positionSelfEdges",      function() { positionSelfEdges(g); });
+  time("    removeBorderNodes",      function() { removeBorderNodes(g); });
+  time("    normalize.undo",         function() { normalize.undo(g); });
+  time("    fixupEdgeLabelCoords",   function() { fixupEdgeLabelCoords(g); });
+  time("    undoCoordinateSystem",   function() { coordinateSystem.undo(g); });
+  time("    translateGraph",         function() { translateGraph(g); });
+  time("    assignNodeIntersects",   function() { assignNodeIntersects(g); });
+  time("    reversePoints",          function() { reversePointsForReversedEdges(g); });
+  time("    acyclic.undo",           function() { acyclic.undo(g); });
+}
+
+/*
+ * Copies final layout information from the layout graph back to the input
+ * graph. This process only copies whitelisted attributes from the layout graph
+ * to the input graph, so it serves as a good place to determine what
+ * attributes can influence layout.
+ */
+function updateInputGraph(inputGraph, layoutGraph) {
+  _.each(inputGraph.nodes(), function(v) {
+    var inputLabel = inputGraph.node(v),
+        layoutLabel = layoutGraph.node(v);
+
+    if (inputLabel) {
+      inputLabel.x = layoutLabel.x;
+      inputLabel.y = layoutLabel.y;
+
+      if (layoutGraph.children(v).length) {
+        inputLabel.width = layoutLabel.width;
+        inputLabel.height = layoutLabel.height;
+      }
+    }
+  });
+
+  _.each(inputGraph.edges(), function(e) {
+    var inputLabel = inputGraph.edge(e),
+        layoutLabel = layoutGraph.edge(e);
+
+    inputLabel.points = layoutLabel.points;
+    if (_.has(layoutLabel, "x")) {
+      inputLabel.x = layoutLabel.x;
+      inputLabel.y = layoutLabel.y;
+    }
+  });
+
+  inputGraph.graph().width = layoutGraph.graph().width;
+  inputGraph.graph().height = layoutGraph.graph().height;
+}
+
+var graphNumAttrs = ["nodesep", "edgesep", "ranksep", "marginx", "marginy"],
+    graphDefaults = { ranksep: 50, edgesep: 20, nodesep: 50, rankdir: "tb" },
+    graphAttrs = ["acyclicer", "ranker", "rankdir", "align"],
+    nodeNumAttrs = ["width", "height"],
+    nodeDefaults = { width: 0, height: 0 },
+    edgeNumAttrs = ["minlen", "weight", "width", "height", "labeloffset"],
+    edgeDefaults = {
+      minlen: 1, weight: 1, width: 0, height: 0,
+      labeloffset: 10, labelpos: "r"
+    },
+    edgeAttrs = ["labelpos"];
+
+/*
+ * Constructs a new graph from the input graph, which can be used for layout.
+ * This process copies only whitelisted attributes from the input graph to the
+ * layout graph. Thus this function serves as a good place to determine what
+ * attributes can influence layout.
+ */
+function buildLayoutGraph(inputGraph) {
+  var g = new Graph({ multigraph: true, compound: true }),
+      graph = canonicalize(inputGraph.graph());
+
+  g.setGraph(_.merge({},
+    graphDefaults,
+    selectNumberAttrs(graph, graphNumAttrs),
+    _.pick(graph, graphAttrs)));
+
+  _.each(inputGraph.nodes(), function(v) {
+    var node = canonicalize(inputGraph.node(v));
+    g.setNode(v, _.defaults(selectNumberAttrs(node, nodeNumAttrs), nodeDefaults));
+    g.setParent(v, inputGraph.parent(v));
+  });
+
+  _.each(inputGraph.edges(), function(e) {
+    var edge = canonicalize(inputGraph.edge(e));
+    g.setEdge(e, _.merge({},
+      edgeDefaults,
+      selectNumberAttrs(edge, edgeNumAttrs),
+      _.pick(edge, edgeAttrs)));
+  });
+
+  return g;
+}
+
+/*
+ * This idea comes from the Gansner paper: to account for edge labels in our
+ * layout we split each rank in half by doubling minlen and halving ranksep.
+ * Then we can place labels at these mid-points between nodes.
+ *
+ * We also add some minimal padding to the width to push the label for the edge
+ * away from the edge itself a bit.
+ */
+function makeSpaceForEdgeLabels(g) {
+  var graph = g.graph();
+  graph.ranksep /= 2;
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    edge.minlen *= 2;
+    if (edge.labelpos.toLowerCase() !== "c") {
+      if (graph.rankdir === "TB" || graph.rankdir === "BT") {
+        edge.width += edge.labeloffset;
+      } else {
+        edge.height += edge.labeloffset;
+      }
+    }
+  });
+}
+
+/*
+ * Creates temporary dummy nodes that capture the rank in which each edge's
+ * label is going to, if it has one of non-zero width and height. We do this
+ * so that we can safely remove empty ranks while preserving balance for the
+ * label's position.
+ */
+function injectEdgeLabelProxies(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (edge.width && edge.height) {
+      var v = g.node(e.v),
+          w = g.node(e.w),
+          label = { rank: (w.rank - v.rank) / 2 + v.rank, e: e };
+      util.addDummyNode(g, "edge-proxy", label, "_ep");
+    }
+  });
+}
+
+function assignRankMinMax(g) {
+  var maxRank = 0;
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (node.borderTop) {
+      node.minRank = g.node(node.borderTop).rank;
+      node.maxRank = g.node(node.borderBottom).rank;
+      maxRank = _.max(maxRank, node.maxRank);
+    }
+  });
+  g.graph().maxRank = maxRank;
+}
+
+function removeEdgeLabelProxies(g) {
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (node.dummy === "edge-proxy") {
+      g.edge(node.e).labelRank = node.rank;
+      g.removeNode(v);
+    }
+  });
+}
+
+function translateGraph(g) {
+  var minX = Number.POSITIVE_INFINITY,
+      maxX = 0,
+      minY = Number.POSITIVE_INFINITY,
+      maxY = 0,
+      graphLabel = g.graph(),
+      marginX = graphLabel.marginx || 0,
+      marginY = graphLabel.marginy || 0;
+
+  function getExtremes(attrs) {
+    var x = attrs.x,
+        y = attrs.y,
+        w = attrs.width,
+        h = attrs.height;
+    minX = Math.min(minX, x - w / 2);
+    maxX = Math.max(maxX, x + w / 2);
+    minY = Math.min(minY, y - h / 2);
+    maxY = Math.max(maxY, y + h / 2);
+  }
+
+  _.each(g.nodes(), function(v) { getExtremes(g.node(v)); });
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (_.has(edge, "x")) {
+      getExtremes(edge);
+    }
+  });
+
+  minX -= marginX;
+  minY -= marginY;
+
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    node.x -= minX;
+    node.y -= minY;
+  });
+
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    _.each(edge.points, function(p) {
+      p.x -= minX;
+      p.y -= minY;
+    });
+    if (_.has(edge, "x")) { edge.x -= minX; }
+    if (_.has(edge, "y")) { edge.y -= minY; }
+  });
+
+  graphLabel.width = maxX - minX + marginX;
+  graphLabel.height = maxY - minY + marginY;
+}
+
+function assignNodeIntersects(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e),
+        nodeV = g.node(e.v),
+        nodeW = g.node(e.w),
+        p1, p2;
+    if (!edge.points) {
+      edge.points = [];
+      p1 = nodeW;
+      p2 = nodeV;
+    } else {
+      p1 = edge.points[0];
+      p2 = edge.points[edge.points.length - 1];
+    }
+    edge.points.unshift(util.intersectRect(nodeV, p1));
+    edge.points.push(util.intersectRect(nodeW, p2));
+  });
+}
+
+function fixupEdgeLabelCoords(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (_.has(edge, "x")) {
+      if (edge.labelpos === "l" || edge.labelpos === "r") {
+        edge.width -= edge.labeloffset;
+      }
+      switch (edge.labelpos) {
+        case "l": edge.x -= edge.width / 2 + edge.labeloffset; break;
+        case "r": edge.x += edge.width / 2 + edge.labeloffset; break;
+      }
+    }
+  });
+}
+
+function reversePointsForReversedEdges(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (edge.reversed) {
+      edge.points.reverse();
+    }
+  });
+}
+
+function removeBorderNodes(g) {
+  _.each(g.nodes(), function(v) {
+    if (g.children(v).length) {
+      var node = g.node(v),
+          t = g.node(node.borderTop),
+          b = g.node(node.borderBottom),
+          l = g.node(_.last(node.borderLeft)),
+          r = g.node(_.last(node.borderRight));
+
+      node.width = Math.abs(r.x - l.x);
+      node.height = Math.abs(b.y - t.y);
+      node.x = l.x + node.width / 2;
+      node.y = t.y + node.height / 2;
+    }
+  });
+
+  _.each(g.nodes(), function(v) {
+    if (g.node(v).dummy === "border") {
+      g.removeNode(v);
+    }
+  });
+}
+
+function removeSelfEdges(g) {
+  _.each(g.edges(), function(e) {
+    if (e.v === e.w) {
+      var node = g.node(e.v);
+      if (!node.selfEdges) {
+        node.selfEdges = [];
+      }
+      node.selfEdges.push({ e: e, label: g.edge(e) });
+      g.removeEdge(e);
+    }
+  });
+}
+
+function insertSelfEdges(g) {
+  var layers = util.buildLayerMatrix(g);
+  _.each(layers, function(layer) {
+    var orderShift = 0;
+    _.each(layer, function(v, i) {
+      var node = g.node(v);
+      node.order = i + orderShift;
+      _.each(node.selfEdges, function(selfEdge) {
+        util.addDummyNode(g, "selfedge", {
+          width: selfEdge.label.width,
+          height: selfEdge.label.height,
+          rank: node.rank,
+          order: i + (++orderShift),
+          e: selfEdge.e,
+          label: selfEdge.label
+        }, "_se");
+      });
+      delete node.selfEdges;
+    });
+  });
+}
+
+function positionSelfEdges(g) {
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (node.dummy === "selfedge") {
+      var selfNode = g.node(node.e.v),
+          x = selfNode.x + selfNode.width / 2,
+          y = selfNode.y,
+          dx = node.x - x,
+          dy = selfNode.height / 2;
+      g.setEdge(node.e, node.label);
+      g.removeNode(v);
+      node.label.points = [
+        { x: x + 2 * dx / 3, y: y - dy },
+        { x: x + 5 * dx / 6, y: y - dy },
+        { x: x +     dx    , y: y },
+        { x: x + 5 * dx / 6, y: y + dy },
+        { x: x + 2 * dx / 3, y: y + dy },
+      ];
+      node.label.x = node.x;
+      node.label.y = node.y;
+    }
+  });
+}
+
+function selectNumberAttrs(obj, attrs) {
+  return _.mapValues(_.pick(obj, attrs), Number);
+}
+
+function canonicalize(attrs) {
+  var newAttrs = {};
+  _.each(attrs, function(v, k) {
+    newAttrs[k.toLowerCase()] = v;
+  });
+  return newAttrs;
+}
+
+},{"./acyclic":28,"./add-border-segments":29,"./coordinate-system":30,"./graphlib":33,"./lodash":36,"./nesting-graph":37,"./normalize":38,"./order":43,"./parent-dummy-chains":48,"./position":50,"./rank":52,"./util":55}],36:[function(require,module,exports){
+module.exports=require(20)
+},{"lodash":101}],37:[function(require,module,exports){
+var _ = require("./lodash"),
+    util = require("./util");
+
+module.exports = {
+  run: run,
+  cleanup: cleanup
+};
+
+/*
+ * A nesting graph creates dummy nodes for the tops and bottoms of subgraphs,
+ * adds appropriate edges to ensure that all cluster nodes are placed between
+ * these boundries, and ensures that the graph is connected.
+ *
+ * In addition we ensure, through the use of the minlen property, that nodes
+ * and subgraph border nodes to not end up on the same rank.
+ *
+ * Preconditions:
+ *
+ *    1. Input graph is a DAG
+ *    2. Nodes in the input graph has a minlen attribute
+ *
+ * Postconditions:
+ *
+ *    1. Input graph is connected.
+ *    2. Dummy nodes are added for the tops and bottoms of subgraphs.
+ *    3. The minlen attribute for nodes is adjusted to ensure nodes do not
+ *       get placed on the same rank as subgraph border nodes.
+ *
+ * The nesting graph idea comes from Sander, "Layout of Compound Directed
+ * Graphs."
+ */
+function run(g) {
+  var root = util.addDummyNode(g, "root", {}, "_root"),
+      depths = treeDepths(g),
+      height = _.max(depths) - 1,
+      nodeSep = 2 * height + 1;
+
+  g.graph().nestingRoot = root;
+
+  // Multiply minlen by nodeSep to align nodes on non-border ranks.
+  _.each(g.edges(), function(e) { g.edge(e).minlen *= nodeSep; });
+
+  // Calculate a weight that is sufficient to keep subgraphs vertically compact
+  var weight = sumWeights(g) + 1;
+
+  // Create border nodes and link them up
+  _.each(g.children(), function(child) {
+    dfs(g, root, nodeSep, weight, height, depths, child);
+  });
+
+  // Save the multiplier for node layers for later removal of empty border
+  // layers.
+  g.graph().nodeRankFactor = nodeSep;
+}
+
+function dfs(g, root, nodeSep, weight, height, depths, v) {
+  var children = g.children(v);
+  if (!children.length) {
+    if (v !== root) {
+      g.setEdge(root, v, { weight: 0, minlen: nodeSep });
+    }
+    return;
+  }
+
+  var top = util.addBorderNode(g, "_bt"),
+      bottom = util.addBorderNode(g, "_bb"),
+      label = g.node(v);
+
+  g.setParent(top, v);
+  label.borderTop = top;
+  g.setParent(bottom, v);
+  label.borderBottom = bottom;
+
+  _.each(children, function(child) {
+    dfs(g, root, nodeSep, weight, height, depths, child);
+
+    var childNode = g.node(child),
+        childTop = childNode.borderTop ? childNode.borderTop : child,
+        childBottom = childNode.borderBottom ? childNode.borderBottom : child,
+        thisWeight = childNode.borderTop ? weight : 2 * weight,
+        minlen = childTop !== childBottom ? 1 : height - depths[v] + 1;
+
+    g.setEdge(top, childTop, {
+      weight: thisWeight,
+      minlen: minlen,
+      nestingEdge: true
+    });
+
+    g.setEdge(childBottom, bottom, {
+      weight: thisWeight,
+      minlen: minlen,
+      nestingEdge: true
+    });
+  });
+
+  if (!g.parent(v)) {
+    g.setEdge(root, top, { weight: 0, minlen: height + depths[v] });
+  }
+}
+
+function treeDepths(g) {
+  var depths = {};
+  function dfs(v, depth) {
+    var children = g.children(v);
+    if (children && children.length) {
+      _.each(children, function(child) {
+        dfs(child, depth + 1);
+      });
+    }
+    depths[v] = depth;
+  }
+  _.each(g.children(), function(v) { dfs(v, 1); });
+  return depths;
+}
+
+function sumWeights(g) {
+  return _.reduce(g.edges(), function(acc, e) {
+    return acc + g.edge(e).weight;
+  }, 0);
+}
+
+function cleanup(g) {
+  var graphLabel = g.graph();
+  g.removeNode(graphLabel.nestingRoot);
+  delete graphLabel.nestingRoot;
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (edge.nestingEdge) {
+      g.removeEdge(e);
+    }
+  });
+}
+
+},{"./lodash":36,"./util":55}],38:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    util = require("./util");
+
+module.exports = {
+  run: run,
+  undo: undo
+};
+
+/*
+ * Breaks any long edges in the graph into short segments that span 1 layer
+ * each. This operation is undoable with the denormalize function.
+ *
+ * Pre-conditions:
+ *
+ *    1. The input graph is a DAG.
+ *    2. Each node in the graph has a "rank" property.
+ *
+ * Post-condition:
+ *
+ *    1. All edges in the graph have a length of 1.
+ *    2. Dummy nodes are added where edges have been split into segments.
+ *    3. The graph is augmented with a "dummyChains" attribute which contains
+ *       the first dummy in each chain of dummy nodes produced.
+ */
+function run(g) {
+  g.graph().dummyChains = [];
+  _.each(g.edges(), function(edge) { normalizeEdge(g, edge); });
+}
+
+function normalizeEdge(g, e) {
+  var v = e.v,
+      vRank = g.node(v).rank,
+      w = e.w,
+      wRank = g.node(w).rank,
+      name = e.name,
+      edgeLabel = g.edge(e),
+      labelRank = edgeLabel.labelRank;
+
+  if (wRank === vRank + 1) return;
+
+  g.removeEdge(e);
+
+  var dummy, attrs, i;
+  for (i = 0, ++vRank; vRank < wRank; ++i, ++vRank) {
+    edgeLabel.points = [];
+    attrs = {
+      width: 0, height: 0,
+      edgeLabel: edgeLabel, edgeObj: e,
+      rank: vRank
+    };
+    dummy = util.addDummyNode(g, "edge", attrs, "_d");
+    if (vRank === labelRank) {
+      attrs.width = edgeLabel.width;
+      attrs.height = edgeLabel.height;
+      attrs.dummy = "edge-label";
+      attrs.labelpos = edgeLabel.labelpos;
+    }
+    g.setEdge(v, dummy, { weight: edgeLabel.weight }, name);
+    if (i === 0) {
+      g.graph().dummyChains.push(dummy);
+    }
+    v = dummy;
+  }
+
+  g.setEdge(v, w, { weight: edgeLabel.weight }, name);
+}
+
+function undo(g) {
+  _.each(g.graph().dummyChains, function(v) {
+    var node = g.node(v),
+        origLabel = node.edgeLabel,
+        w;
+    g.setEdge(node.edgeObj, origLabel);
+    while (node.dummy) {
+      w = g.successors(v)[0];
+      g.removeNode(v);
+      origLabel.points.push({ x: node.x, y: node.y });
+      if (node.dummy === "edge-label") {
+        origLabel.x = node.x;
+        origLabel.y = node.y;
+        origLabel.width = node.width;
+        origLabel.height = node.height;
+      }
+      v = w;
+      node = g.node(v);
+    }
+  });
+}
+
+},{"./lodash":36,"./util":55}],39:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = addSubgraphConstraints;
+
+function addSubgraphConstraints(g, cg, vs) {
+  var prev = {},
+      rootPrev;
+
+  _.each(vs, function(v) {
+    var child = g.parent(v),
+        parent,
+        prevChild;
+    while (child) {
+      parent = g.parent(child);
+      if (parent) {
+        prevChild = prev[parent];
+        prev[parent] = child;
+      } else {
+        prevChild = rootPrev;
+        rootPrev = child;
+      }
+      if (prevChild && prevChild !== child) {
+        cg.setEdge(prevChild, child);
+        return;
+      }
+      child = parent;
+    }
+  });
+
+  /*
+  function dfs(v) {
+    var children = v ? g.children(v) : g.children();
+    if (children.length) {
+      var min = Number.POSITIVE_INFINITY,
+          subgraphs = [];
+      _.each(children, function(child) {
+        var childMin = dfs(child);
+        if (g.children(child).length) {
+          subgraphs.push({ v: child, order: childMin });
+        }
+        min = Math.min(min, childMin);
+      });
+      _.reduce(_.sortBy(subgraphs, "order"), function(prev, curr) {
+        cg.setEdge(prev.v, curr.v);
+        return curr;
+      });
+      return min;
+    }
+    return g.node(v).order;
+  }
+  dfs(undefined);
+  */
+}
+
+},{"../lodash":36}],40:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = barycenter;
+
+function barycenter(g, movable) {
+  return _.map(movable, function(v) {
+    var inV = g.inEdges(v);
+    if (!inV.length) {
+      return { v: v };
+    } else {
+      var result = _.reduce(inV, function(acc, e) {
+        var edge = g.edge(e),
+            nodeU = g.node(e.v);
+        return {
+          sum: acc.sum + (edge.weight * nodeU.order),
+          weight: acc.weight + edge.weight
+        };
+      }, { sum: 0, weight: 0 });
+
+      return {
+        v: v,
+        barycenter: result.sum / result.weight,
+        weight: result.weight
+      };
+    }
+  });
+}
+
+
+},{"../lodash":36}],41:[function(require,module,exports){
+var _ = require("../lodash"),
+    Graph = require("../graphlib").Graph;
+
+module.exports = buildLayerGraph;
+
+/*
+ * Constructs a graph that can be used to sort a layer of nodes. The graph will
+ * contain all base and subgraph nodes from the request layer in their original
+ * hierarchy and any edges that are incident on these nodes and are of the type
+ * requested by the "relationship" parameter.
+ *
+ * Nodes from the requested rank that do not have parents are assigned a root
+ * node in the output graph, which is set in the root graph attribute. This
+ * makes it easy to walk the hierarchy of movable nodes during ordering.
+ *
+ * Pre-conditions:
+ *
+ *    1. Input graph is a DAG
+ *    2. Base nodes in the input graph have a rank attribute
+ *    3. Subgraph nodes in the input graph has minRank and maxRank attributes
+ *    4. Edges have an assigned weight
+ *
+ * Post-conditions:
+ *
+ *    1. Output graph has all nodes in the movable rank with preserved
+ *       hierarchy.
+ *    2. Root nodes in the movable layer are made children of the node
+ *       indicated by the root attribute of the graph.
+ *    3. Non-movable nodes incident on movable nodes, selected by the
+ *       relationship parameter, are included in the graph (without hierarchy).
+ *    4. Edges incident on movable nodes, selected by the relationship
+ *       parameter, are added to the output graph.
+ *    5. The weights for copied edges are aggregated as need, since the output
+ *       graph is not a multi-graph.
+ */
+function buildLayerGraph(g, rank, relationship) {
+  var root = createRootNode(g),
+      result = new Graph({ compound: true }).setGraph({ root: root })
+                  .setDefaultNodeLabel(function(v) { return g.node(v); });
+
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v),
+        parent = g.parent(v);
+
+    if (node.rank === rank || node.minRank <= rank && rank <= node.maxRank) {
+      result.setNode(v);
+      result.setParent(v, parent || root);
+
+      // This assumes we have only short edges!
+      _.each(g[relationship](v), function(e) {
+        var u = e.v === v ? e.w : e.v,
+            edge = result.edge(u, v),
+            weight = !_.isUndefined(edge) ? edge.weight : 0;
+        result.setEdge(u, v, { weight: g.edge(e).weight + weight });
+      });
+
+      if (_.has(node, "minRank")) {
+        result.setNode(v, {
+          borderLeft: node.borderLeft[rank],
+          borderRight: node.borderRight[rank]
+        });
+      }
+    }
+  });
+
+  return result;
+}
+
+function createRootNode(g) {
+  var v;
+  while (g.hasNode((v = _.uniqueId("_root"))));
+  return v;
+}
+
+},{"../graphlib":33,"../lodash":36}],42:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = crossCount;
+
+/*
+ * A function that takes a layering (an array of layers, each with an array of
+ * ordererd nodes) and a graph and returns a weighted crossing count.
+ *
+ * Pre-conditions:
+ *
+ *    1. Input graph must be simple (not a multigraph), directed, and include
+ *       only simple edges.
+ *    2. Edges in the input graph must have assigned weights.
+ *
+ * Post-conditions:
+ *
+ *    1. The graph and layering matrix are left unchanged.
+ *
+ * This algorithm is derived from Barth, et al., "Bilayer Cross Counting."
+ */
+function crossCount(g, layering) {
+  var cc = 0;
+  for (var i = 1; i < layering.length; ++i) {
+    cc += twoLayerCrossCount(g, layering[i-1], layering[i]);
+  }
+  return cc;
+}
+
+function twoLayerCrossCount(g, northLayer, southLayer) {
+  // Sort all of the edges between the north and south layers by their position
+  // in the north layer and then the south. Map these edges to the position of
+  // their head in the south layer.
+  var southPos = _.zipObject(southLayer,
+                             _.map(southLayer, function (v, i) { return i; }));
+  var southEntries = _.flatten(_.map(northLayer, function(v) {
+    return _.chain(g.outEdges(v))
+            .map(function(e) {
+              return { pos: southPos[e.w], weight: g.edge(e).weight };
+            })
+            .sortBy("pos")
+            .value();
+  }), true);
+
+  // Build the accumulator tree
+  var firstIndex = 1;
+  while (firstIndex < southLayer.length) firstIndex <<= 1;
+  var treeSize = 2 * firstIndex - 1;
+  firstIndex -= 1;
+  var tree = _.map(new Array(treeSize), function() { return 0; });
+
+  // Calculate the weighted crossings
+  var cc = 0;
+  _.each(southEntries.forEach(function(entry) {
+    var index = entry.pos + firstIndex;
+    tree[index] += entry.weight;
+    var weightSum = 0;
+    while (index > 0) {
+      if (index % 2) {
+        weightSum += tree[index + 1];
+      }
+      index = (index - 1) >> 1;
+      tree[index] += entry.weight;
+    }
+    cc += entry.weight * weightSum;
+  }));
+
+  return cc;
+}
+
+},{"../lodash":36}],43:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    initOrder = require("./init-order"),
+    crossCount = require("./cross-count"),
+    sortSubgraph = require("./sort-subgraph"),
+    buildLayerGraph = require("./build-layer-graph"),
+    addSubgraphConstraints = require("./add-subgraph-constraints"),
+    Graph = require("../graphlib").Graph,
+    util = require("../util");
+
+module.exports = order;
+
+/*
+ * Applies heuristics to minimize edge crossings in the graph and sets the best
+ * order solution as an order attribute on each node.
+ *
+ * Pre-conditions:
+ *
+ *    1. Graph must be DAG
+ *    2. Graph nodes must be objects with a "rank" attribute
+ *    3. Graph edges must have the "weight" attribute
+ *
+ * Post-conditions:
+ *
+ *    1. Graph nodes will have an "order" attribute based on the results of the
+ *       algorithm.
+ */
+function order(g) {
+  var maxRank = util.maxRank(g),
+      downLayerGraphs = buildLayerGraphs(g, _.range(1, maxRank + 1), "inEdges"),
+      upLayerGraphs = buildLayerGraphs(g, _.range(maxRank - 1, -1, -1), "outEdges");
+
+  var layering = initOrder(g);
+  assignOrder(g, layering);
+
+  var bestCC = Number.POSITIVE_INFINITY,
+      best;
+
+  for (var i = 0, lastBest = 0; lastBest < 4; ++i, ++lastBest) {
+    sweepLayerGraphs(i % 2 ? downLayerGraphs : upLayerGraphs, i % 4 >= 2);
+
+    layering = util.buildLayerMatrix(g);
+    var cc = crossCount(g, layering);
+    if (cc < bestCC) {
+      lastBest = 0;
+      best = _.cloneDeep(layering);
+      bestCC = cc;
+    }
+  }
+
+  assignOrder(g, best);
+}
+
+function buildLayerGraphs(g, ranks, relationship) {
+  return _.map(ranks, function(rank) {
+    return buildLayerGraph(g, rank, relationship);
+  });
+}
+
+function sweepLayerGraphs(layerGraphs, biasRight) {
+  var cg = new Graph();
+  _.each(layerGraphs, function(lg) {
+    var root = lg.graph().root;
+    var sorted = sortSubgraph(lg, root, cg, biasRight);
+    _.each(sorted.vs, function(v, i) {
+      lg.node(v).order = i;
+    });
+    addSubgraphConstraints(lg, cg, sorted.vs);
+  });
+}
+
+function assignOrder(g, layering) {
+  _.each(layering, function(layer) {
+    _.each(layer, function(v, i) {
+      g.node(v).order = i;
+    });
+  });
+}
+
+},{"../graphlib":33,"../lodash":36,"../util":55,"./add-subgraph-constraints":39,"./build-layer-graph":41,"./cross-count":42,"./init-order":44,"./sort-subgraph":46}],44:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = initOrder;
+
+/*
+ * Assigns an initial order value for each node by performing a DFS search
+ * starting from nodes in the first rank. Nodes are assigned an order in their
+ * rank as they are first visited.
+ *
+ * This approach comes from Gansner, et al., "A Technique for Drawing Directed
+ * Graphs."
+ *
+ * Returns a layering matrix with an array per layer and each layer sorted by
+ * the order of its nodes.
+ */
+function initOrder(g) {
+  var visited = {},
+      simpleNodes = _.filter(g.nodes(), function(v) {
+        return !g.children(v).length;
+      }),
+      maxRank = _.max(_.map(simpleNodes, function(v) { return g.node(v).rank; })),
+      layers = _.map(_.range(maxRank + 1), function() { return []; });
+
+  function dfs(v) {
+    if (_.has(visited, v)) return;
+    visited[v] = true;
+    var node = g.node(v);
+    layers[node.rank].push(v);
+    _.each(g.successors(v), dfs);
+  }
+
+  var orderedVs = _.sortBy(simpleNodes, function(v) { return g.node(v).rank; });
+  _.each(orderedVs, dfs);
+
+  return layers;
+}
+
+},{"../lodash":36}],45:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = resolveConflicts;
+
+/*
+ * Given a list of entries of the form {v, barycenter, weight} and a
+ * constraint graph this function will resolve any conflicts between the
+ * constraint graph and the barycenters for the entries. If the barycenters for
+ * an entry would violate a constraint in the constraint graph then we coalesce
+ * the nodes in the conflict into a new node that respects the contraint and
+ * aggregates barycenter and weight information.
+ *
+ * This implementation is based on the description in Forster, "A Fast and
+ * Simple Hueristic for Constrained Two-Level Crossing Reduction," thought it
+ * differs in some specific details.
+ *
+ * Pre-conditions:
+ *
+ *    1. Each entry has the form {v, barycenter, weight}, or if the node has
+ *       no barycenter, then {v}.
+ *
+ * Returns:
+ *
+ *    A new list of entries of the form {vs, i, barycenter, weight}. The list
+ *    `vs` may either be a singleton or it may be an aggregation of nodes
+ *    ordered such that they do not violate constraints from the constraint
+ *    graph. The property `i` is the lowest original index of any of the
+ *    elements in `vs`.
+ */
+function resolveConflicts(entries, cg) {
+  var mappedEntries = {};
+  _.each(entries, function(entry, i) {
+    var tmp = mappedEntries[entry.v] = {
+      indegree: 0,
+      in: [],
+      out: [],
+      vs: [entry.v],
+      i: i
+    };
+    if (!_.isUndefined(entry.barycenter)) {
+      tmp.barycenter = entry.barycenter;
+      tmp.weight = entry.weight;
+    }
+  });
+
+  _.each(cg.edges(), function(e) {
+    var entryV = mappedEntries[e.v],
+        entryW = mappedEntries[e.w];
+    if (!_.isUndefined(entryV) && !_.isUndefined(entryW)) {
+      entryW.indegree++;
+      entryV.out.push(mappedEntries[e.w]);
+    }
+  });
+
+  var sourceSet = _.filter(mappedEntries, function(entry) {
+    return !entry.indegree;
+  });
+
+  return doResolveConflicts(sourceSet);
+}
+
+function doResolveConflicts(sourceSet) {
+  var entries = [];
+
+  function handleIn(vEntry) {
+    return function(uEntry) {
+      if (uEntry.merged) {
+        return;
+      }
+      if (_.isUndefined(uEntry.barycenter) ||
+          _.isUndefined(vEntry.barycenter) ||
+          uEntry.barycenter >= vEntry.barycenter) {
+        mergeEntries(vEntry, uEntry);
+      }
+    };
+  }
+
+  function handleOut(vEntry) {
+    return function(wEntry) {
+      wEntry.in.push(vEntry);
+      if (--wEntry.indegree === 0) {
+        sourceSet.push(wEntry);
+      }
+    };
+  }
+
+  while (sourceSet.length) {
+    var entry = sourceSet.pop();
+    entries.push(entry);
+    _.each(entry.in.reverse(), handleIn(entry));
+    _.each(entry.out, handleOut(entry));
+  }
+
+  return _.chain(entries)
+          .filter(function(entry) { return !entry.merged; })
+          .map(function(entry) {
+            return _.pick(entry, ["vs", "i", "barycenter", "weight"]);
+          })
+          .value();
+}
+
+function mergeEntries(target, source) {
+  var sum = 0,
+      weight = 0;
+
+  if (target.weight) {
+    sum += target.barycenter * target.weight;
+    weight += target.weight;
+  }
+
+  if (source.weight) {
+    sum += source.barycenter * source.weight;
+    weight += source.weight;
+  }
+
+  target.vs = source.vs.concat(target.vs);
+  target.barycenter = sum / weight;
+  target.weight = weight;
+  target.i = Math.min(source.i, target.i);
+  source.merged = true;
+}
+
+},{"../lodash":36}],46:[function(require,module,exports){
+var _ = require("../lodash"),
+    barycenter = require("./barycenter"),
+    resolveConflicts = require("./resolve-conflicts"),
+    sort = require("./sort");
+
+module.exports = sortSubgraph;
+
+function sortSubgraph(g, v, cg, biasRight) {
+  var movable = g.children(v),
+      node = g.node(v),
+      bl = node ? node.borderLeft : undefined,
+      br = node ? node.borderRight: undefined,
+      subgraphs = {};
+
+  if (bl) {
+    movable = _.filter(movable, function(w) {
+      return w !== bl && w !== br;
+    });
+  }
+
+  var barycenters = barycenter(g, movable);
+  _.each(barycenters, function(entry) {
+    if (g.children(entry.v).length) {
+      var subgraphResult = sortSubgraph(g, entry.v, cg, biasRight);
+      subgraphs[entry.v] = subgraphResult;
+      if (_.has(subgraphResult, "barycenter")) {
+        mergeBarycenters(entry, subgraphResult);
+      }
+    }
+  });
+
+  var entries = resolveConflicts(barycenters, cg);
+  expandSubgraphs(entries, subgraphs);
+
+  var result = sort(entries, biasRight);
+
+  if (bl) {
+    result.vs = _.flatten([bl, result.vs, br], true);
+    if (g.predecessors(bl).length) {
+      var blPred = g.node(g.predecessors(bl)[0]),
+          brPred = g.node(g.predecessors(br)[0]);
+      if (!_.has(result, "barycenter")) {
+        result.barycenter = 0;
+        result.weight = 0;
+      }
+      result.barycenter = (result.barycenter * result.weight +
+                           blPred.order + brPred.order) / (result.weight + 2);
+      result.weight += 2;
+    }
+  }
+
+  return result;
+}
+
+function expandSubgraphs(entries, subgraphs) {
+  _.each(entries, function(entry) {
+    entry.vs = _.flatten(entry.vs.map(function(v) {
+      if (subgraphs[v]) {
+        return subgraphs[v].vs;
+      }
+      return v;
+    }), true);
+  });
+}
+
+function mergeBarycenters(target, other) {
+  if (!_.isUndefined(target.barycenter)) {
+    target.barycenter = (target.barycenter * target.weight +
+                         other.barycenter * other.weight) /
+                        (target.weight + other.weight);
+    target.weight += other.weight;
+  } else {
+    target.barycenter = other.barycenter;
+    target.weight = other.weight;
+  }
+}
+
+},{"../lodash":36,"./barycenter":40,"./resolve-conflicts":45,"./sort":47}],47:[function(require,module,exports){
+var _ = require("../lodash"),
+    util = require("../util");
+
+module.exports = sort;
+
+function sort(entries, biasRight) {
+  var parts = util.partition(entries, function(entry) {
+    return _.has(entry, "barycenter");
+  });
+  var sortable = parts.lhs,
+      unsortable = _.sortBy(parts.rhs, function(entry) { return -entry.i; }),
+      vs = [],
+      sum = 0,
+      weight = 0,
+      vsIndex = 0;
+
+  sortable.sort(compareWithBias(!!biasRight));
+
+  vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
+
+  _.each(sortable, function (entry) {
+    vsIndex += entry.vs.length;
+    vs.push(entry.vs);
+    sum += entry.barycenter * entry.weight;
+    weight += entry.weight;
+    vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
+  });
+
+  var result = { vs: _.flatten(vs, true) };
+  if (weight) {
+    result.barycenter = sum / weight;
+    result.weight = weight;
+  }
+  return result;
+}
+
+function consumeUnsortable(vs, unsortable, index) {
+  var last;
+  while (unsortable.length && (last = _.last(unsortable)).i <= index) {
+    unsortable.pop();
+    vs.push(last.vs);
+    index++;
+  }
+  return index;
+}
+
+function compareWithBias(bias) {
+  return function(entryV, entryW) {
+    if (entryV.barycenter < entryW.barycenter) {
+      return -1;
+    } else if (entryV.barycenter > entryW.barycenter) {
+      return 1;
+    }
+
+    return !bias ? entryV.i - entryW.i : entryW.i - entryV.i;
+  };
+}
+
+},{"../lodash":36,"../util":55}],48:[function(require,module,exports){
+var _ = require("./lodash");
+
+module.exports = parentDummyChains;
+
+function parentDummyChains(g) {
+  var postorderNums = postorder(g);
+
+  _.each(g.graph().dummyChains, function(v) {
+    var node = g.node(v),
+        edgeObj = node.edgeObj,
+        pathData = findPath(g, postorderNums, edgeObj.v, edgeObj.w),
+        path = pathData.path,
+        lca = pathData.lca,
+        pathIdx = 0,
+        pathV = path[pathIdx],
+        ascending = true;
+
+    while (v !== edgeObj.w) {
+      node = g.node(v);
+
+      if (ascending) {
+        while ((pathV = path[pathIdx]) !== lca &&
+               g.node(pathV).maxRank < node.rank) {
+          pathIdx++;
+        }
+
+        if (pathV === lca) {
+          ascending = false;
+        }
+      }
+
+      if (!ascending) {
+        while (pathIdx < path.length - 1 &&
+               g.node(pathV = path[pathIdx + 1]).minRank <= node.rank) {
+          pathIdx++;
+        }
+        pathV = path[pathIdx];
+      }
+
+      g.setParent(v, pathV);
+      v = g.successors(v)[0];
+    }
+  });
+}
+
+// Find a path from v to w through the lowest common ancestor (LCA). Return the
+// full path and the LCA.
+function findPath(g, postorderNums, v, w) {
+  var vPath = [],
+      wPath = [],
+      low = Math.min(postorderNums[v].low, postorderNums[w].low),
+      lim = Math.max(postorderNums[v].lim, postorderNums[w].lim),
+      parent,
+      lca;
+
+  // Traverse up from v to find the LCA
+  parent = v;
+  do {
+    parent = g.parent(parent);
+    vPath.push(parent);
+  } while (parent &&
+           (postorderNums[parent].low > low || lim > postorderNums[parent].lim));
+  lca = parent;
+
+  // Traverse from w to LCA
+  parent = w;
+  while ((parent = g.parent(parent)) !== lca) {
+    wPath.push(parent);
+  }
+
+  return { path: vPath.concat(wPath.reverse()), lca: lca };
+}
+
+function postorder(g) {
+  var result = {},
+      lim = 0;
+
+  function dfs(v) {
+    var low = lim;
+    _.each(g.children(v), dfs);
+    result[v] = { low: low, lim: lim++ };
+  }
+  _.each(g.children(), dfs);
+
+  return result;
+}
+
+},{"./lodash":36}],49:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    util = require("../util");
+
+/*
+ * This module provides coordinate assignment based on Brandes and Köpf, "Fast
+ * and Simple Horizontal Coordinate Assignment."
+ */
+
+module.exports = {
+  positionX: positionX,
+  findType1Conflicts: findType1Conflicts,
+  findType2Conflicts: findType2Conflicts,
+  addConflict: addConflict,
+  hasConflict: hasConflict,
+  verticalAlignment: verticalAlignment,
+  horizontalCompaction: horizontalCompaction,
+  alignCoordinates: alignCoordinates,
+  findSmallestWidthAlignment: findSmallestWidthAlignment,
+  balance: balance
+};
+
+/*
+ * Marks all edges in the graph with a type-1 conflict with the "type1Conflict"
+ * property. A type-1 conflict is one where a non-inner segment crosses an
+ * inner segment. An inner segment is an edge with both incident nodes marked
+ * with the "dummy" property.
+ *
+ * This algorithm scans layer by layer, starting with the second, for type-1
+ * conflicts between the current layer and the previous layer. For each layer
+ * it scans the nodes from left to right until it reaches one that is incident
+ * on an inner segment. It then scans predecessors to determine if they have
+ * edges that cross that inner segment. At the end a final scan is done for all
+ * nodes on the current rank to see if they cross the last visited inner
+ * segment.
+ *
+ * This algorithm (safely) assumes that a dummy node will only be incident on a
+ * single node in the layers being scanned.
+ */
+function findType1Conflicts(g, layering) {
+  var conflicts = {};
+
+  function visitLayer(prevLayer, layer) {
+    var
+      // last visited node in the previous layer that is incident on an inner
+      // segment.
+      k0 = 0,
+      // Tracks the last node in this layer scanned for crossings with a type-1
+      // segment.
+      scanPos = 0,
+      prevLayerLength = prevLayer.length,
+      lastNode = _.last(layer);
+
+    _.each(layer, function(v, i) {
+      var w = findOtherInnerSegmentNode(g, v),
+          k1 = w ? g.node(w).order : prevLayerLength;
+
+      if (w || v === lastNode) {
+        _.each(layer.slice(scanPos, i +1), function(scanNode) {
+          _.each(g.predecessors(scanNode), function(u) {
+            var uLabel = g.node(u),
+                uPos = uLabel.order;
+            if ((uPos < k0 || k1 < uPos) &&
+                !(uLabel.dummy && g.node(scanNode).dummy)) {
+              addConflict(conflicts, u, scanNode);
+            }
+          });
+        });
+        scanPos = i + 1;
+        k0 = k1;
+      }
+    });
+
+    return layer;
+  }
+
+  _.reduce(layering, visitLayer);
+  return conflicts;
+}
+
+function findType2Conflicts(g, layering) {
+  var conflicts = {};
+
+  function scan(south, southPos, southEnd, prevNorthBorder, nextNorthBorder) {
+    var v;
+    _.each(_.range(southPos, southEnd), function(i) {
+      v = south[i];
+      if (g.node(v).dummy) {
+        _.each(g.predecessors(v), function(u) {
+          var uNode = g.node(u);
+          if (uNode.dummy &&
+              (uNode.order < prevNorthBorder || uNode.order > nextNorthBorder)) {
+            addConflict(conflicts, u, v);
+          }
+        });
+      }
+    });
+  }
+
+
+  function visitLayer(north, south) {
+    var prevNorthPos = -1,
+        nextNorthPos,
+        southPos = 0;
+
+    _.each(south, function(v, southLookahead) {
+      if (g.node(v).dummy === "border") {
+        var predecessors = g.predecessors(v);
+        if (predecessors.length) {
+          nextNorthPos = g.node(predecessors[0]).order;
+          scan(south, southPos, southLookahead, prevNorthPos, nextNorthPos);
+          southPos = southLookahead;
+          prevNorthPos = nextNorthPos;
+        }
+      }
+      scan(south, southPos, south.length, nextNorthPos, north.length);
+    });
+
+    return south;
+  }
+
+  _.reduce(layering, visitLayer);
+  return conflicts;
+}
+
+function findOtherInnerSegmentNode(g, v) {
+  if (g.node(v).dummy) {
+    return _.find(g.predecessors(v), function(u) {
+      return g.node(u).dummy;
+    });
+  }
+}
+
+function addConflict(conflicts, v, w) {
+  if (v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+
+  var conflictsV = conflicts[v];
+  if (!conflictsV) {
+    conflicts[v] = conflictsV = {};
+  }
+  conflictsV[w] = true;
+}
+
+function hasConflict(conflicts, v, w) {
+  if (v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  return _.has(conflicts[v], w);
+}
+
+/*
+ * Try to align nodes into vertical "blocks" where possible. This algorithm
+ * attempts to align a node with one of its median neighbors. If the edge
+ * connecting a neighbor is a type-1 conflict then we ignore that possibility.
+ * If a previous node has already formed a block with a node after the node
+ * we're trying to form a block with, we also ignore that possibility - our
+ * blocks would be split in that scenario.
+ */
+function verticalAlignment(g, layering, conflicts, neighborFn) {
+  var root = {},
+      align = {},
+      pos = {};
+
+  // We cache the position here based on the layering because the graph and
+  // layering may be out of sync. The layering matrix is manipulated to
+  // generate different extreme alignments.
+  _.each(layering, function(layer) {
+    _.each(layer, function(v, order) {
+      root[v] = v;
+      align[v] = v;
+      pos[v] = order;
+    });
+  });
+
+  _.each(layering, function(layer) {
+    var prevIdx = -1;
+    _.each(layer, function(v) {
+      var ws = neighborFn(v);
+      if (ws.length) {
+        ws = _.sortBy(ws, function(w) { return pos[w]; });
+        var mp = (ws.length - 1) / 2;
+        for (var i = Math.floor(mp), il = Math.ceil(mp); i <= il; ++i) {
+          var w = ws[i];
+          if (align[v] === v &&
+              prevIdx < pos[w] &&
+              !hasConflict(conflicts, v, w)) {
+            align[w] = v;
+            align[v] = root[v] = root[w];
+            prevIdx = pos[w];
+          }
+        }
+      }
+    });
+  });
+
+  return { root: root, align: align };
+}
+
+function horizontalCompaction(g, layering, root, align, reverseSep) {
+  // We use local variables for these parameters instead of manipulating the
+  // graph because it becomes more verbose to access them in a chained manner.
+  var shift = {},
+      shiftNeighbor = {},
+      sink = {},
+      xs = {},
+      pred = {},
+      graphLabel = g.graph(),
+      sepFn = sep(graphLabel.nodesep, graphLabel.edgesep, reverseSep);
+
+  _.each(layering, function(layer) {
+    _.each(layer, function(v, order) {
+      sink[v] = v;
+      shift[v] = Number.POSITIVE_INFINITY;
+      pred[v] = layer[order - 1];
+    });
+  });
+
+  _.each(g.nodes(), function(v) {
+    if (root[v] === v) {
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v);
+    }
+  });
+
+  _.each(layering, function(layer) {
+    _.each(layer, function(v) {
+      xs[v] = xs[root[v]];
+      // This line differs from the source paper. See
+      // http://www.inf.uni-konstanz.de/~brandes/publications/ for details.
+      if (v === root[v] && shift[sink[root[v]]] < Number.POSITIVE_INFINITY) {
+        xs[v] += shift[sink[root[v]]];
+
+        // Cascade shifts as necessary
+        var w = shiftNeighbor[sink[root[v]]];
+        if (w && shift[w] !== Number.POSITIVE_INFINITY) {
+          xs[v] += shift[w];
+        }
+      }
+    });
+  });
+
+  return xs;
+}
+
+function placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v) {
+  if (_.has(xs, v)) return;
+  xs[v] = 0;
+
+  var w = v,
+      u;
+  do {
+    if (pred[w]) {
+      u = root[pred[w]];
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, u);
+      if (sink[v] === v) {
+        sink[v] = sink[u];
+      }
+
+      var delta = sepFn(g, w, pred[w]);
+      if (sink[v] !== sink[u]) {
+        shift[sink[u]] = Math.min(shift[sink[u]], xs[v] - xs[u] - delta);
+        shiftNeighbor[sink[u]] = sink[v];
+      } else {
+        xs[v] = Math.max(xs[v], xs[u] + delta);
+      }
+    }
+    w = align[w];
+  } while (w !== v);
+}
+
+/*
+ * Returns the alignment that has the smallest width of the given alignments.
+ */
+function findSmallestWidthAlignment(g, xss) {
+  return _.min(xss, function(xs) {
+    var min = _.min(xs, function(x, v) { return x - width(g, v) / 2; }),
+        max = _.max(xs, function(x, v) { return x + width(g, v) / 2; });
+    return max - min;
+  });
+}
+
+/*
+ * Align the coordinates of each of the layout alignments such that
+ * left-biased alignments have their minimum coordinate at the same point as
+ * the minimum coordinate of the smallest width alignment and right-biased
+ * alignments have their maximum coordinate at the same point as the maximum
+ * coordinate of the smallest width alignment.
+ */
+function alignCoordinates(xss, alignTo) {
+  var alignToMin = _.min(alignTo),
+      alignToMax = _.max(alignTo);
+
+  _.each(["u", "d"], function(vert) {
+    _.each(["l", "r"], function(horiz) {
+      var alignment = vert + horiz,
+          xs = xss[alignment],
+          delta;
+      if (xs === alignTo) return;
+
+      delta = horiz === "l" ? alignToMin - _.min(xs) : alignToMax - _.max(xs);
+
+      if (delta) {
+        xss[alignment] = _.mapValues(xs, function(x) { return x + delta; });
+      }
+    });
+  });
+}
+
+function balance(xss, align) {
+  return _.mapValues(xss.ul, function(ignore, v) {
+    if (align) {
+      return xss[align.toLowerCase()][v];
+    } else {
+      var xs = _.sortBy(_.pluck(xss, v));
+      return (xs[1] + xs[2]) / 2;
+    }
+  });
+}
+
+function positionX(g) {
+  var layering = util.buildLayerMatrix(g),
+      conflicts = _.merge(findType1Conflicts(g, layering),
+                          findType2Conflicts(g, layering));
+
+  var xss = {},
+      adjustedLayering;
+  _.each(["u", "d"], function(vert) {
+    adjustedLayering = vert === "u" ? layering : _.values(layering).reverse();
+    _.each(["l", "r"], function(horiz) {
+      if (horiz === "r") {
+        adjustedLayering = _.map(adjustedLayering, function(inner) {
+          return _.values(inner).reverse();
+        });
+      }
+
+      var neighborFn = _.bind(vert === "u" ? g.predecessors : g.successors, g);
+      var align = verticalAlignment(g, adjustedLayering, conflicts, neighborFn);
+      var xs = horizontalCompaction(g, adjustedLayering,
+                                    align.root, align.align,
+                                    horiz === "r");
+      if (horiz === "r") {
+        xs = _.mapValues(xs, function(x) { return -x; });
+      }
+      xss[vert + horiz] = xs;
+    });
+  });
+
+  var smallestWidth = findSmallestWidthAlignment(g, xss);
+  alignCoordinates(xss, smallestWidth);
+  return balance(xss, g.graph().align);
+}
+
+function sep(nodeSep, edgeSep, reverseSep) {
+  return function(g, v, w) {
+    var vLabel = g.node(v),
+        wLabel = g.node(w),
+        sum = 0,
+        delta;
+
+    sum += vLabel.width / 2;
+    if (_.has(vLabel, "labelpos")) {
+      switch (vLabel.labelpos.toLowerCase()) {
+        case "l": delta = -vLabel.width / 2; break;
+        case "r": delta = vLabel.width / 2; break;
+      }
+    }
+    if (delta) {
+      sum += reverseSep ? delta : -delta;
+    }
+    delta = 0;
+
+    sum += (vLabel.dummy ? edgeSep : nodeSep) / 2;
+    sum += (wLabel.dummy ? edgeSep : nodeSep) / 2;
+
+    sum += wLabel.width / 2;
+    if (_.has(wLabel, "labelpos")) {
+      switch (wLabel.labelpos.toLowerCase()) {
+        case "l": delta = wLabel.width / 2; break;
+        case "r": delta = -wLabel.width / 2; break;
+      }
+    }
+    if (delta) {
+      sum += reverseSep ? delta : -delta;
+    }
+    delta = 0;
+
+    return sum;
+  };
+}
+
+function width(g, v) {
+  return g.node(v).width;
+}
+
+},{"../lodash":36,"../util":55}],50:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    util = require("../util"),
+    positionX = require("./bk").positionX;
+
+module.exports = position;
+
+function position(g) {
+  g = util.asNonCompoundGraph(g);
+
+  positionY(g);
+  _.each(positionX(g), function(x, v) {
+    g.node(v).x = x;
+  });
+}
+
+function positionY(g) {
+  var layering = util.buildLayerMatrix(g),
+      rankSep = g.graph().ranksep,
+      prevY = 0;
+  _.each(layering, function(layer) {
+    var maxHeight = _.max(_.map(layer, function(v) { return g.node(v).height; }));
+    _.each(layer, function(v) {
+      g.node(v).y = prevY + maxHeight / 2;
+    });
+    prevY += maxHeight + rankSep;
+  });
+}
+
+
+},{"../lodash":36,"../util":55,"./bk":49}],51:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    Graph = require("../graphlib").Graph,
+    slack = require("./util").slack;
+
+module.exports = feasibleTree;
+
+/*
+ * Constructs a spanning tree with tight edges and adjusted the input node's
+ * ranks to achieve this. A tight edge is one that is has a length that matches
+ * its "minlen" attribute.
+ *
+ * The basic structure for this function is derived from Gansner, et al., "A
+ * Technique for Drawing Directed Graphs."
+ *
+ * Pre-conditions:
+ *
+ *    1. Graph must be a DAG.
+ *    2. Graph must be connected.
+ *    3. Graph must have at least one node.
+ *    5. Graph nodes must have been previously assigned a "rank" property that
+ *       respects the "minlen" property of incident edges.
+ *    6. Graph edges must have a "minlen" property.
+ *
+ * Post-conditions:
+ *
+ *    - Graph nodes will have their rank adjusted to ensure that all edges are
+ *      tight.
+ *
+ * Returns a tree (undirected graph) that is constructed using only "tight"
+ * edges.
+ */
+function feasibleTree(g) {
+  var t = new Graph({ directed: false });
+
+  // Choose arbitrary node from which to start our tree
+  var start = g.nodes()[0],
+      size = g.nodeCount();
+  t.setNode(start, {});
+
+  var edge, delta;
+  while (tightTree(t, g) < size) {
+    edge = findMinSlackEdge(t, g);
+    delta = t.hasNode(edge.v) ? slack(g, edge) : -slack(g, edge);
+    shiftRanks(t, g, delta);
+  }
+
+  return t;
+}
+
+/*
+ * Finds a maximal tree of tight edges and returns the number of nodes in the
+ * tree.
+ */
+function tightTree(t, g) {
+  function dfs(v) {
+    _.each(g.nodeEdges(v), function(e) {
+      var edgeV = e.v,
+          w = (v === edgeV) ? e.w : edgeV;
+      if (!t.hasNode(w) && !slack(g, e)) {
+        t.setNode(w, {});
+        t.setEdge(v, w, {});
+        dfs(w);
+      }
+    });
+  }
+
+  _.each(t.nodes(), dfs);
+  return t.nodeCount();
+}
+
+/*
+ * Finds the edge with the smallest slack that is incident on tree and returns
+ * it.
+ */
+function findMinSlackEdge(t, g) {
+  return _.min(g.edges(), function(e) {
+    if (t.hasNode(e.v) !== t.hasNode(e.w)) {
+      return slack(g, e);
+    }
+  });
+}
+
+function shiftRanks(t, g, delta) {
+  _.each(t.nodes(), function(v) {
+    g.node(v).rank += delta;
+  });
+}
+
+},{"../graphlib":33,"../lodash":36,"./util":54}],52:[function(require,module,exports){
+"use strict";
+
+var rankUtil = require("./util"),
+    longestPath = rankUtil.longestPath,
+    feasibleTree = require("./feasible-tree"),
+    networkSimplex = require("./network-simplex");
+
+module.exports = rank;
+
+/*
+ * Assigns a rank to each node in the input graph that respects the "minlen"
+ * constraint specified on edges between nodes.
+ *
+ * This basic structure is derived from Gansner, et al., "A Technique for
+ * Drawing Directed Graphs."
+ *
+ * Pre-conditions:
+ *
+ *    1. Graph must be a connected DAG
+ *    2. Graph nodes must be objects
+ *    3. Graph edges must have "weight" and "minlen" attributes
+ *
+ * Post-conditions:
+ *
+ *    1. Graph nodes will have a "rank" attribute based on the results of the
+ *       algorithm. Ranks can start at any index (including negative), we'll
+ *       fix them up later.
+ */
+function rank(g) {
+  switch(g.graph().ranker) {
+    case "network-simplex": networkSimplexRanker(g); break;
+    case "tight-tree": tightTreeRanker(g); break;
+    case "longest-path": longestPathRanker(g); break;
+    default: networkSimplexRanker(g);
+  }
+}
+
+// A fast and simple ranker, but results are far from optimal.
+var longestPathRanker = longestPath;
+
+function tightTreeRanker(g) {
+  longestPath(g);
+  feasibleTree(g);
+}
+
+function networkSimplexRanker(g) {
+  networkSimplex(g);
+}
+
+},{"./feasible-tree":51,"./network-simplex":53,"./util":54}],53:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    feasibleTree = require("./feasible-tree"),
+    slack = require("./util").slack,
+    initRank = require("./util").longestPath,
+    preorder = require("../graphlib").alg.preorder,
+    postorder = require("../graphlib").alg.postorder,
+    simplify = require("../util").simplify;
+
+module.exports = networkSimplex;
+
+// Expose some internals for testing purposes
+networkSimplex.initLowLimValues = initLowLimValues;
+networkSimplex.initCutValues = initCutValues;
+networkSimplex.calcCutValue = calcCutValue;
+networkSimplex.leaveEdge = leaveEdge;
+networkSimplex.enterEdge = enterEdge;
+networkSimplex.exchangeEdges = exchangeEdges;
+
+/*
+ * The network simplex algorithm assigns ranks to each node in the input graph
+ * and iteratively improves the ranking to reduce the length of edges.
+ *
+ * Preconditions:
+ *
+ *    1. The input graph must be a DAG.
+ *    2. All nodes in the graph must have an object value.
+ *    3. All edges in the graph must have "minlen" and "weight" attributes.
+ *
+ * Postconditions:
+ *
+ *    1. All nodes in the graph will have an assigned "rank" attribute that has
+ *       been optimized by the network simplex algorithm. Ranks start at 0.
+ *
+ *
+ * A rough sketch of the algorithm is as follows:
+ *
+ *    1. Assign initial ranks to each node. We use the longest path algorithm,
+ *       which assigns ranks to the lowest position possible. In general this
+ *       leads to very wide bottom ranks and unnecessarily long edges.
+ *    2. Construct a feasible tight tree. A tight tree is one such that all
+ *       edges in the tree have no slack (difference between length of edge
+ *       and minlen for the edge). This by itself greatly improves the assigned
+ *       rankings by shorting edges.
+ *    3. Iteratively find edges that have negative cut values. Generally a
+ *       negative cut value indicates that the edge could be removed and a new
+ *       tree edge could be added to produce a more compact graph.
+ *
+ * Much of the algorithms here are derived from Gansner, et al., "A Technique
+ * for Drawing Directed Graphs." The structure of the file roughly follows the
+ * structure of the overall algorithm.
+ */
+function networkSimplex(g) {
+  g = simplify(g);
+  initRank(g);
+  var t = feasibleTree(g);
+  initLowLimValues(t);
+  initCutValues(t, g);
+
+  var e, f;
+  while ((e = leaveEdge(t))) {
+    f = enterEdge(t, g, e);
+    exchangeEdges(t, g, e, f);
+  }
+}
+
+/*
+ * Initializes cut values for all edges in the tree.
+ */
+function initCutValues(t, g) {
+  var vs = postorder(t, t.nodes());
+  vs = vs.slice(0, vs.length - 1);
+  _.each(vs, function(v) {
+    assignCutValue(t, g, v);
+  });
+}
+
+function assignCutValue(t, g, child) {
+  var childLab = t.node(child),
+      parent = childLab.parent;
+  t.edge(child, parent).cutvalue = calcCutValue(t, g, child);
+}
+
+/*
+ * Given the tight tree, its graph, and a child in the graph calculate and
+ * return the cut value for the edge between the child and its parent.
+ */
+function calcCutValue(t, g, child) {
+  var childLab = t.node(child),
+      parent = childLab.parent,
+      // True if the child is on the tail end of the edge in the directed graph
+      childIsTail = true,
+      // The graph's view of the tree edge we're inspecting
+      graphEdge = g.edge(child, parent),
+      // The accumulated cut value for the edge between this node and its parent
+      cutValue = 0;
+
+  if (!graphEdge) {
+    childIsTail = false;
+    graphEdge = g.edge(parent, child);
+  }
+
+  cutValue = graphEdge.weight;
+
+  _.each(g.nodeEdges(child), function(e) {
+    var isOutEdge = e.v === child,
+        other = isOutEdge ? e.w : e.v;
+
+    if (other !== parent) {
+      var pointsToHead = isOutEdge === childIsTail,
+          otherWeight = g.edge(e).weight;
+
+      cutValue += pointsToHead ? otherWeight : -otherWeight;
+      if (isTreeEdge(t, child, other)) {
+        var otherCutValue = t.edge(child, other).cutvalue;
+        cutValue += pointsToHead ? -otherCutValue : otherCutValue;
+      }
+    }
+  });
+
+  return cutValue;
+}
+
+function initLowLimValues(tree, root) {
+  if (arguments.length < 2) {
+    root = tree.nodes()[0];
+  }
+  dfsAssignLowLim(tree, {}, 1, root);
+}
+
+function dfsAssignLowLim(tree, visited, nextLim, v, parent) {
+  var low = nextLim,
+      label = tree.node(v);
+
+  visited[v] = true;
+  _.each(tree.neighbors(v), function(w) {
+    if (!_.has(visited, w)) {
+      nextLim = dfsAssignLowLim(tree, visited, nextLim, w, v);
+    }
+  });
+
+  label.low = low;
+  label.lim = nextLim++;
+  if (parent) {
+    label.parent = parent;
+  } else {
+    // TODO should be able to remove this when we incrementally update low lim
+    delete label.parent;
+  }
+
+  return nextLim;
+}
+
+function leaveEdge(tree) {
+  return _.find(tree.edges(), function(e) {
+    return tree.edge(e).cutvalue < 0;
+  });
+}
+
+function enterEdge(t, g, edge) {
+  var v = edge.v,
+      w = edge.w;
+
+  // For the rest of this function we assume that v is the tail and w is the
+  // head, so if we don't have this edge in the graph we should flip it to
+  // match the correct orientation.
+  if (!g.hasEdge(v, w)) {
+    v = edge.w;
+    w = edge.v;
+  }
+
+  var vLabel = t.node(v),
+      wLabel = t.node(w),
+      tailLabel = vLabel,
+      flip = false;
+
+  // If the root is in the tail of the edge then we need to flip the logic that
+  // checks for the head and tail nodes in the candidates function below.
+  if (vLabel.lim > wLabel.lim) {
+    tailLabel = wLabel;
+    flip = true;
+  }
+
+  var candidates = _.filter(g.edges(), function(edge) {
+    return flip === isDescendant(t, t.node(edge.v), tailLabel) &&
+           flip !== isDescendant(t, t.node(edge.w), tailLabel);
+  });
+
+  return _.min(candidates, function(edge) { return slack(g, edge); });
+}
+
+function exchangeEdges(t, g, e, f) {
+  var v = e.v,
+      w = e.w;
+  t.removeEdge(v, w);
+  t.setEdge(f.v, f.w, {});
+  initLowLimValues(t);
+  initCutValues(t, g);
+  updateRanks(t, g);
+}
+
+function updateRanks(t, g) {
+  var root = _.find(t.nodes(), function(v) { return !g.node(v).parent; }),
+      vs = preorder(t, root);
+  vs = vs.slice(1);
+  _.each(vs, function(v) {
+    var parent = t.node(v).parent,
+        edge = g.edge(v, parent),
+        flipped = false;
+
+    if (!edge) {
+      edge = g.edge(parent, v);
+      flipped = true;
+    }
+
+    g.node(v).rank = g.node(parent).rank + (flipped ? edge.minlen : -edge.minlen);
+  });
+}
+
+/*
+ * Returns true if the edge is in the tree.
+ */
+function isTreeEdge(tree, u, v) {
+  return tree.hasEdge(u, v);
+}
+
+/*
+ * Returns true if the specified node is descendant of the root node per the
+ * assigned low and lim attributes in the tree.
+ */
+function isDescendant(tree, vLabel, rootLabel) {
+  return rootLabel.low <= vLabel.lim && vLabel.lim <= rootLabel.lim;
+}
+
+},{"../graphlib":33,"../lodash":36,"../util":55,"./feasible-tree":51,"./util":54}],54:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = {
+  longestPath: longestPath,
+  slack: slack
+};
+
+/*
+ * Initializes ranks for the input graph using the longest path algorithm. This
+ * algorithm scales well and is fast in practice, it yields rather poor
+ * solutions. Nodes are pushed to the lowest layer possible, leaving the bottom
+ * ranks wide and leaving edges longer than necessary. However, due to its
+ * speed, this algorithm is good for getting an initial ranking that can be fed
+ * into other algorithms.
+ *
+ * This algorithm does not normalize layers because it will be used by other
+ * algorithms in most cases. If using this algorithm directly, be sure to
+ * run normalize at the end.
+ *
+ * Pre-conditions:
+ *
+ *    1. Input graph is a DAG.
+ *    2. Input graph node labels can be assigned properties.
+ *
+ * Post-conditions:
+ *
+ *    1. Each node will be assign an (unnormalized) "rank" property.
+ */
+function longestPath(g) {
+  var visited = {};
+
+  function dfs(v) {
+    var label = g.node(v);
+    if (_.has(visited, v)) {
+      return label.rank;
+    }
+    visited[v] = true;
+
+    var rank = _.min(_.map(g.outEdges(v), function(e) {
+      return dfs(e.w) - g.edge(e).minlen;
+    }));
+
+    if (rank === Number.POSITIVE_INFINITY) {
+      rank = 0;
+    }
+
+    return (label.rank = rank);
+  }
+
+  _.each(g.sources(), dfs);
+}
+
+/*
+ * Returns the amount of slack for the given edge. The slack is defined as the
+ * difference between the length of the edge and its minimum length.
+ */
+function slack(g, e) {
+  return g.node(e.w).rank - g.node(e.v).rank - g.edge(e).minlen;
+}
+
+},{"../lodash":36}],55:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    Graph = require("./graphlib").Graph;
+
+module.exports = {
+  addDummyNode: addDummyNode,
+  simplify: simplify,
+  asNonCompoundGraph: asNonCompoundGraph,
+  successorWeights: successorWeights,
+  predecessorWeights: predecessorWeights,
+  intersectRect: intersectRect,
+  buildLayerMatrix: buildLayerMatrix,
+  normalizeRanks: normalizeRanks,
+  removeEmptyRanks: removeEmptyRanks,
+  addBorderNode: addBorderNode,
+  maxRank: maxRank,
+  partition: partition,
+  time: time,
+  notime: notime
+};
+
+/*
+ * Adds a dummy node to the graph and return v.
+ */
+function addDummyNode(g, type, attrs, name) {
+  var v;
+  do {
+    v = _.uniqueId(name);
+  } while (g.hasNode(v));
+
+  attrs.dummy = type;
+  g.setNode(v, attrs);
+  return v;
+}
+
+/*
+ * Returns a new graph with only simple edges. Handles aggregation of data
+ * associated with multi-edges.
+ */
+function simplify(g) {
+  var simplified = new Graph().setGraph(g.graph());
+  _.each(g.nodes(), function(v) { simplified.setNode(v, g.node(v)); });
+  _.each(g.edges(), function(e) {
+    var simpleLabel = simplified.edge(e.v, e.w) || { weight: 0, minlen: 1 },
+        label = g.edge(e);
+    simplified.setEdge(e.v, e.w, {
+      weight: simpleLabel.weight + label.weight,
+      minlen: Math.max(simpleLabel.minlen, label.minlen)
+    });
+  });
+  return simplified;
+}
+
+function asNonCompoundGraph(g) {
+  var simplified = new Graph({ multigraph: g.isMultigraph() }).setGraph(g.graph());
+  _.each(g.nodes(), function(v) {
+    if (!g.children(v).length) {
+      simplified.setNode(v, g.node(v));
+    }
+  });
+  _.each(g.edges(), function(e) {
+    simplified.setEdge(e, g.edge(e));
+  });
+  return simplified;
+}
+
+function successorWeights(g) {
+  var weightMap = _.map(g.nodes(), function(v) {
+    var sucs = {};
+    _.each(g.outEdges(v), function(e) {
+      sucs[e.w] = (sucs[e.w] || 0) + g.edge(e).weight;
+    });
+    return sucs;
+  });
+  return _.zipObject(g.nodes(), weightMap);
+}
+
+function predecessorWeights(g) {
+  var weightMap = _.map(g.nodes(), function(v) {
+    var preds = {};
+    _.each(g.inEdges(v), function(e) {
+      preds[e.v] = (preds[e.v] || 0) + g.edge(e).weight;
+    });
+    return preds;
+  });
+  return _.zipObject(g.nodes(), weightMap);
+}
+
+/*
+ * Finds where a line starting at point ({x, y}) would intersect a rectangle
+ * ({x, y, width, height}) if it were pointing at the rectangle's center.
+ */
+function intersectRect(rect, point) {
+  var x = rect.x;
+  var y = rect.y;
+
+  // Rectangle intersection algorithm from:
+  // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes
+  var dx = point.x - x;
+  var dy = point.y - y;
+  var w = rect.width / 2;
+  var h = rect.height / 2;
+
+  if (!dx && !dy) {
+    throw new Error("Not possible to find intersection inside of the rectangle");
+  }
+
+  var sx, sy;
+  if (Math.abs(dy) * w > Math.abs(dx) * h) {
+    // Intersection is top or bottom of rect.
+    if (dy < 0) {
+      h = -h;
+    }
+    sx = h * dx / dy;
+    sy = h;
+  } else {
+    // Intersection is left or right of rect.
+    if (dx < 0) {
+      w = -w;
+    }
+    sx = w;
+    sy = w * dy / dx;
+  }
+
+  return { x: x + sx, y: y + sy };
+}
+
+/*
+ * Given a DAG with each node assigned "rank" and "order" properties, this
+ * function will produce a matrix with the ids of each node.
+ */
+function buildLayerMatrix(g) {
+  var layering = _.map(_.range(maxRank(g) + 1), function() { return []; });
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v),
+        rank = node.rank;
+    if (!_.isUndefined(rank)) {
+      layering[rank][node.order] = v;
+    }
+  });
+  return layering;
+}
+
+/*
+ * Adjusts the ranks for all nodes in the graph such that all nodes v have
+ * rank(v) >= 0 and at least one node w has rank(w) = 0.
+ */
+function normalizeRanks(g) {
+  var min = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; }));
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (_.has(node, "rank")) {
+      node.rank -= min;
+    }
+  });
+}
+
+function removeEmptyRanks(g) {
+  // Ranks may not start at 0, so we need to offset them
+  var offset = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; }));
+
+  var layers = [];
+  _.each(g.nodes(), function(v) {
+    var rank = g.node(v).rank - offset;
+    if (!_.has(layers, rank)) {
+      layers[rank] = [];
+    }
+    layers[rank].push(v);
+  });
+
+  var delta = 0,
+      nodeRankFactor = g.graph().nodeRankFactor;
+  _.each(layers, function(vs, i) {
+    if (_.isUndefined(vs) && i % nodeRankFactor !== 0) {
+      --delta;
+    } else if (delta) {
+      _.each(vs, function(v) { g.node(v).rank += delta; });
+    }
+  });
+}
+
+function addBorderNode(g, prefix, rank, order) {
+  var node = {
+    width: 0,
+    height: 0
+  };
+  if (arguments.length >= 4) {
+    node.rank = rank;
+    node.order = order;
+  }
+  return addDummyNode(g, "border", node, prefix);
+}
+
+function maxRank(g) {
+  return _.max(_.map(g.nodes(), function(v) {
+    var rank = g.node(v).rank;
+    if (!_.isUndefined(rank)) {
+      return rank;
+    }
+  }));
+}
+
+/*
+ * Partition a collection into two groups: `lhs` and `rhs`. If the supplied
+ * function returns true for an entry it goes into `lhs`. Otherwise it goes
+ * into `rhs.
+ */
+function partition(collection, fn) {
+  var result = { lhs: [], rhs: [] };
+  _.each(collection, function(value) {
+    if (fn(value)) {
+      result.lhs.push(value);
+    } else {
+      result.rhs.push(value);
+    }
+  });
+  return result;
+}
+
+/*
+ * Returns a new function that wraps `fn` with a timer. The wrapper logs the
+ * time it takes to execute the function.
+ */
+function time(name, fn) {
+  var start = _.now();
+  try {
+    return fn();
+  } finally {
+    console.log(name + " time: " + (_.now() - start) + "ms");
+  }
+}
+
+function notime(name, fn) {
+  return fn();
+}
+
+},{"./graphlib":33,"./lodash":36}],56:[function(require,module,exports){
+module.exports = "0.6.4";
+
+},{}],57:[function(require,module,exports){
+/**
+ * Copyright (c) 2014, Chris Pettitt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+var lib = require("./lib");
+
+module.exports = {
+  Graph: lib.Graph,
+  json: require("./lib/json"),
+  alg: require("./lib/alg"),
+  version: lib.version
+};
+
+},{"./lib":73,"./lib/alg":64,"./lib/json":74}],58:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = components;
+
+function components(g) {
+  var visited = {},
+      cmpts = [],
+      cmpt;
+
+  function dfs(v) {
+    if (_.has(visited, v)) return;
+    visited[v] = true;
+    cmpt.push(v);
+    _.each(g.successors(v), dfs);
+    _.each(g.predecessors(v), dfs);
+  }
+
+  _.each(g.nodes(), function(v) {
+    cmpt = [];
+    dfs(v);
+    if (cmpt.length) {
+      cmpts.push(cmpt);
+    }
+  });
+
+  return cmpts;
+}
+
+},{"../lodash":75}],59:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = dfs;
+
+/*
+ * A helper that preforms a pre- or post-order traversal on the input graph
+ * and returns the nodes in the order they were visited. This algorithm treats
+ * the input as undirected.
+ *
+ * Order must be one of "pre" or "post".
+ */
+function dfs(g, vs, order) {
+  if (!_.isArray(vs)) {
+    vs = [vs];
+  }
+
+  var acc = [],
+      visited = {};
+  _.each(vs, function(v) {
+    if (!g.hasNode(v)) {
+      throw new Error("Graph does not have node: " + v);
+    }
+
+    doDfs(g, v, order === "post", visited, acc);
+  });
+  return acc;
+}
+
+function doDfs(g, v, postorder, visited, acc) {
+  if (!_.has(visited, v)) {
+    visited[v] = true;
+
+    if (!postorder) { acc.push(v); }
+    _.each(g.neighbors(v), function(w) {
+      doDfs(g, w, postorder, visited, acc);
+    });
+    if (postorder) { acc.push(v); }
+  }
+}
+
+},{"../lodash":75}],60:[function(require,module,exports){
+var dijkstra = require("./dijkstra"),
+    _ = require("../lodash");
+
+module.exports = dijkstraAll;
+
+function dijkstraAll(g, weightFunc, edgeFunc) {
+  return _.transform(g.nodes(), function(acc, v) {
+    acc[v] = dijkstra(g, v, weightFunc, edgeFunc);
+  }, {});
+}
+
+},{"../lodash":75,"./dijkstra":61}],61:[function(require,module,exports){
+var _ = require("../lodash"),
+    PriorityQueue = require("../data/priority-queue");
+
+module.exports = dijkstra;
+
+var DEFAULT_WEIGHT_FUNC = _.constant(1);
+
+function dijkstra(g, source, weightFn, edgeFn) {
+  return runDijkstra(g, String(source),
+                     weightFn || DEFAULT_WEIGHT_FUNC,
+                     edgeFn || function(v) { return g.outEdges(v); });
+}
+
+function runDijkstra(g, source, weightFn, edgeFn) {
+  var results = {},
+      pq = new PriorityQueue(),
+      v, vEntry;
+
+  var updateNeighbors = function(edge) {
+    var w = edge.v !== v ? edge.v : edge.w,
+        wEntry = results[w],
+        weight = weightFn(edge),
+        distance = vEntry.distance + weight;
+
+    if (weight < 0) {
+      throw new Error("dijkstra does not allow negative edge weights. " +
+                      "Bad edge: " + edge + " Weight: " + weight);
+    }
+
+    if (distance < wEntry.distance) {
+      wEntry.distance = distance;
+      wEntry.predecessor = v;
+      pq.decrease(w, distance);
+    }
+  };
+
+  g.nodes().forEach(function(v) {
+    var distance = v === source ? 0 : Number.POSITIVE_INFINITY;
+    results[v] = { distance: distance };
+    pq.add(v, distance);
+  });
+
+  while (pq.size() > 0) {
+    v = pq.removeMin();
+    vEntry = results[v];
+    if (vEntry.distance === Number.POSITIVE_INFINITY) {
+      break;
+    }
+
+    edgeFn(v).forEach(updateNeighbors);
+  }
+
+  return results;
+}
+
+},{"../data/priority-queue":71,"../lodash":75}],62:[function(require,module,exports){
+var _ = require("../lodash"),
+    tarjan = require("./tarjan");
+
+module.exports = findCycles;
+
+function findCycles(g) {
+  return _.filter(tarjan(g), function(cmpt) { return cmpt.length > 1; });
+}
+
+},{"../lodash":75,"./tarjan":69}],63:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = floydWarshall;
+
+var DEFAULT_WEIGHT_FUNC = _.constant(1);
+
+function floydWarshall(g, weightFn, edgeFn) {
+  return runFloydWarshall(g,
+                          weightFn || DEFAULT_WEIGHT_FUNC,
+                          edgeFn || function(v) { return g.outEdges(v); });
+}
+
+function runFloydWarshall(g, weightFn, edgeFn) {
+  var results = {},
+      nodes = g.nodes();
+
+  nodes.forEach(function(v) {
+    results[v] = {};
+    results[v][v] = { distance: 0 };
+    nodes.forEach(function(w) {
+      if (v !== w) {
+        results[v][w] = { distance: Number.POSITIVE_INFINITY };
+      }
+    });
+    edgeFn(v).forEach(function(edge) {
+      var w = edge.v === v ? edge.w : edge.v,
+          d = weightFn(edge);
+      results[v][w] = { distance: d, predecessor: v };
+    });
+  });
+
+  nodes.forEach(function(k) {
+    var rowK = results[k];
+    nodes.forEach(function(i) {
+      var rowI = results[i];
+      nodes.forEach(function(j) {
+        var ik = rowI[k];
+        var kj = rowK[j];
+        var ij = rowI[j];
+        var altDistance = ik.distance + kj.distance;
+        if (altDistance < ij.distance) {
+          ij.distance = altDistance;
+          ij.predecessor = kj.predecessor;
+        }
+      });
+    });
+  });
+
+  return results;
+}
+
+},{"../lodash":75}],64:[function(require,module,exports){
+module.exports = {
+  components: require("./components"),
+  dijkstra: require("./dijkstra"),
+  dijkstraAll: require("./dijkstra-all"),
+  findCycles: require("./find-cycles"),
+  floydWarshall: require("./floyd-warshall"),
+  isAcyclic: require("./is-acyclic"),
+  postorder: require("./postorder"),
+  preorder: require("./preorder"),
+  prim: require("./prim"),
+  tarjan: require("./tarjan"),
+  topsort: require("./topsort")
+};
+
+},{"./components":58,"./dijkstra":61,"./dijkstra-all":60,"./find-cycles":62,"./floyd-warshall":63,"./is-acyclic":65,"./postorder":66,"./preorder":67,"./prim":68,"./tarjan":69,"./topsort":70}],65:[function(require,module,exports){
+var topsort = require("./topsort");
+
+module.exports = isAcyclic;
+
+function isAcyclic(g) {
+  try {
+    topsort(g);
+  } catch (e) {
+    if (e instanceof topsort.CycleException) {
+      return false;
+    }
+    throw e;
+  }
+  return true;
+}
+
+},{"./topsort":70}],66:[function(require,module,exports){
+var dfs = require("./dfs");
+
+module.exports = postorder;
+
+function postorder(g, vs) {
+  return dfs(g, vs, "post");
+}
+
+},{"./dfs":59}],67:[function(require,module,exports){
+var dfs = require("./dfs");
+
+module.exports = preorder;
+
+function preorder(g, vs) {
+  return dfs(g, vs, "pre");
+}
+
+},{"./dfs":59}],68:[function(require,module,exports){
+var _ = require("../lodash"),
+    Graph = require("../graph"),
+    PriorityQueue = require("../data/priority-queue");
+
+module.exports = prim;
+
+function prim(g, weightFunc) {
+  var result = new Graph(),
+      parents = {},
+      pq = new PriorityQueue(),
+      v;
+
+  function updateNeighbors(edge) {
+    var w = edge.v === v ? edge.w : edge.v,
+        pri = pq.priority(w);
+    if (pri !== undefined) {
+      var edgeWeight = weightFunc(edge);
+      if (edgeWeight < pri) {
+        parents[w] = v;
+        pq.decrease(w, edgeWeight);
+      }
+    }
+  }
+
+  if (g.nodeCount() === 0) {
+    return result;
+  }
+
+  _.each(g.nodes(), function(v) {
+    pq.add(v, Number.POSITIVE_INFINITY);
+    result.setNode(v);
+  });
+
+  // Start from an arbitrary node
+  pq.decrease(g.nodes()[0], 0);
+
+  var init = false;
+  while (pq.size() > 0) {
+    v = pq.removeMin();
+    if (_.has(parents, v)) {
+      result.setEdge(v, parents[v]);
+    } else if (init) {
+      throw new Error("Input graph is not connected: " + g);
+    } else {
+      init = true;
+    }
+
+    g.nodeEdges(v).forEach(updateNeighbors);
+  }
+
+  return result;
+}
+
+},{"../data/priority-queue":71,"../graph":72,"../lodash":75}],69:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = tarjan;
+
+function tarjan(g) {
+  var index = 0,
+      stack = [],
+      visited = {}, // node id -> { onStack, lowlink, index }
+      results = [];
+
+  function dfs(v) {
+    var entry = visited[v] = {
+      onStack: true,
+      lowlink: index,
+      index: index++
+    };
+    stack.push(v);
+
+    g.successors(v).forEach(function(w) {
+      if (!_.has(visited, w)) {
+        dfs(w);
+        entry.lowlink = Math.min(entry.lowlink, visited[w].lowlink);
+      } else if (visited[w].onStack) {
+        entry.lowlink = Math.min(entry.lowlink, visited[w].index);
+      }
+    });
+
+    if (entry.lowlink === entry.index) {
+      var cmpt = [],
+          w;
+      do {
+        w = stack.pop();
+        visited[w].onStack = false;
+        cmpt.push(w);
+      } while (v !== w);
+      results.push(cmpt);
+    }
+  }
+
+  g.nodes().forEach(function(v) {
+    if (!_.has(visited, v)) {
+      dfs(v);
+    }
+  });
+
+  return results;
+}
+
+},{"../lodash":75}],70:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = topsort;
+topsort.CycleException = CycleException;
+
+function topsort(g) {
+  var visited = {},
+      stack = {},
+      results = [];
+
+  function visit(node) {
+    if (_.has(stack, node)) {
+      throw new CycleException();
+    }
+
+    if (!_.has(visited, node)) {
+      stack[node] = true;
+      visited[node] = true;
+      _.each(g.predecessors(node), visit);
+      delete stack[node];
+      results.push(node);
+    }
+  }
+
+  _.each(g.sinks(), visit);
+
+  if (_.size(visited) !== g.nodeCount()) {
+    throw new CycleException();
+  }
+
+  return results;
+}
+
+function CycleException() {}
+
+},{"../lodash":75}],71:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = PriorityQueue;
+
+/**
+ * A min-priority queue data structure. This algorithm is derived from Cormen,
+ * et al., "Introduction to Algorithms". The basic idea of a min-priority
+ * queue is that you can efficiently (in O(1) time) get the smallest key in
+ * the queue. Adding and removing elements takes O(log n) time. A key can
+ * have its priority decreased in O(log n) time.
+ */
+function PriorityQueue() {
+  this._arr = [];
+  this._keyIndices = {};
+}
+
+/**
+ * Returns the number of elements in the queue. Takes `O(1)` time.
+ */
+PriorityQueue.prototype.size = function() {
+  return this._arr.length;
+};
+
+/**
+ * Returns the keys that are in the queue. Takes `O(n)` time.
+ */
+PriorityQueue.prototype.keys = function() {
+  return this._arr.map(function(x) { return x.key; });
+};
+
+/**
+ * Returns `true` if **key** is in the queue and `false` if not.
+ */
+PriorityQueue.prototype.has = function(key) {
+  return _.has(this._keyIndices, key);
+};
+
+/**
+ * Returns the priority for **key**. If **key** is not present in the queue
+ * then this function returns `undefined`. Takes `O(1)` time.
+ *
+ * @param {Object} key
+ */
+PriorityQueue.prototype.priority = function(key) {
+  var index = this._keyIndices[key];
+  if (index !== undefined) {
+    return this._arr[index].priority;
+  }
+};
+
+/**
+ * Returns the key for the minimum element in this queue. If the queue is
+ * empty this function throws an Error. Takes `O(1)` time.
+ */
+PriorityQueue.prototype.min = function() {
+  if (this.size() === 0) {
+    throw new Error("Queue underflow");
+  }
+  return this._arr[0].key;
+};
+
+/**
+ * Inserts a new key into the priority queue. If the key already exists in
+ * the queue this function returns `false`; otherwise it will return `true`.
+ * Takes `O(n)` time.
+ *
+ * @param {Object} key the key to add
+ * @param {Number} priority the initial priority for the key
+ */
+PriorityQueue.prototype.add = function(key, priority) {
+  var keyIndices = this._keyIndices;
+  key = String(key);
+  if (!_.has(keyIndices, key)) {
+    var arr = this._arr;
+    var index = arr.length;
+    keyIndices[key] = index;
+    arr.push({key: key, priority: priority});
+    this._decrease(index);
+    return true;
+  }
+  return false;
+};
+
+/**
+ * Removes and returns the smallest key in the queue. Takes `O(log n)` time.
+ */
+PriorityQueue.prototype.removeMin = function() {
+  this._swap(0, this._arr.length - 1);
+  var min = this._arr.pop();
+  delete this._keyIndices[min.key];
+  this._heapify(0);
+  return min.key;
+};
+
+/**
+ * Decreases the priority for **key** to **priority**. If the new priority is
+ * greater than the previous priority, this function will throw an Error.
+ *
+ * @param {Object} key the key for which to raise priority
+ * @param {Number} priority the new priority for the key
+ */
+PriorityQueue.prototype.decrease = function(key, priority) {
+  var index = this._keyIndices[key];
+  if (priority > this._arr[index].priority) {
+    throw new Error("New priority is greater than current priority. " +
+        "Key: " + key + " Old: " + this._arr[index].priority + " New: " + priority);
+  }
+  this._arr[index].priority = priority;
+  this._decrease(index);
+};
+
+PriorityQueue.prototype._heapify = function(i) {
+  var arr = this._arr;
+  var l = 2 * i,
+      r = l + 1,
+      largest = i;
+  if (l < arr.length) {
+    largest = arr[l].priority < arr[largest].priority ? l : largest;
+    if (r < arr.length) {
+      largest = arr[r].priority < arr[largest].priority ? r : largest;
+    }
+    if (largest !== i) {
+      this._swap(i, largest);
+      this._heapify(largest);
+    }
+  }
+};
+
+PriorityQueue.prototype._decrease = function(index) {
+  var arr = this._arr;
+  var priority = arr[index].priority;
+  var parent;
+  while (index !== 0) {
+    parent = index >> 1;
+    if (arr[parent].priority < priority) {
+      break;
+    }
+    this._swap(index, parent);
+    index = parent;
+  }
+};
+
+PriorityQueue.prototype._swap = function(i, j) {
+  var arr = this._arr;
+  var keyIndices = this._keyIndices;
+  var origArrI = arr[i];
+  var origArrJ = arr[j];
+  arr[i] = origArrJ;
+  arr[j] = origArrI;
+  keyIndices[origArrJ.key] = i;
+  keyIndices[origArrI.key] = j;
+};
+
+},{"../lodash":75}],72:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash");
+
+module.exports = Graph;
+
+var DEFAULT_EDGE_NAME = "\x00",
+    GRAPH_NODE = "\x00",
+    EDGE_KEY_DELIM = "\x01";
+
+// Implementation notes:
+//
+//  * Node id query functions should return string ids for the nodes
+//  * Edge id query functions should return an "edgeObj", edge object, that is
+//    composed of enough information to uniquely identify an edge: {v, w, name}.
+//  * Internally we use an "edgeId", a stringified form of the edgeObj, to
+//    reference edges. This is because we need a performant way to look these
+//    edges up and, object properties, which have string keys, are the closest
+//    we're going to get to a performant hashtable in JavaScript.
+
+function Graph(opts) {
+  this._isDirected = _.has(opts, "directed") ? opts.directed : true;
+  this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false;
+  this._isCompound = _.has(opts, "compound") ? opts.compound : false;
+
+  // Label for the graph itself
+  this._label = undefined;
+
+  // Defaults to be set when creating a new node
+  this._defaultNodeLabelFn = _.constant(undefined);
+
+  // Defaults to be set when creating a new edge
+  this._defaultEdgeLabelFn = _.constant(undefined);
+
+  // v -> label
+  this._nodes = {};
+
+  if (this._isCompound) {
+    // v -> parent
+    this._parent = {};
+
+    // v -> children
+    this._children = {};
+    this._children[GRAPH_NODE] = {};
+  }
+
+  // v -> edgeObj
+  this._in = {};
+
+  // u -> v -> Number
+  this._preds = {};
+
+  // v -> edgeObj
+  this._out = {};
+
+  // v -> w -> Number
+  this._sucs = {};
+
+  // e -> edgeObj
+  this._edgeObjs = {};
+
+  // e -> label
+  this._edgeLabels = {};
+}
+
+/* Number of nodes in the graph. Should only be changed by the implementation. */
+Graph.prototype._nodeCount = 0;
+
+/* Number of edges in the graph. Should only be changed by the implementation. */
+Graph.prototype._edgeCount = 0;
+
+
+/* === Graph functions ========= */
+
+Graph.prototype.isDirected = function() {
+  return this._isDirected;
+};
+
+Graph.prototype.isMultigraph = function() {
+  return this._isMultigraph;
+};
+
+Graph.prototype.isCompound = function() {
+  return this._isCompound;
+};
+
+Graph.prototype.setGraph = function(label) {
+  this._label = label;
+  return this;
+};
+
+Graph.prototype.graph = function() {
+  return this._label;
+};
+
+
+/* === Node functions ========== */
+
+Graph.prototype.setDefaultNodeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultNodeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.nodeCount = function() {
+  return this._nodeCount;
+};
+
+Graph.prototype.nodes = function() {
+  return _.keys(this._nodes);
+};
+
+Graph.prototype.sources = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._in[v]);
+  }, this);
+};
+
+Graph.prototype.sinks = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._out[v]);
+  }, this);
+};
+
+Graph.prototype.setNodes = function(vs, value) {
+  var args = arguments;
+  _.each(vs, function(v) {
+    if (args.length > 1) {
+      this.setNode(v, value);
+    } else {
+      this.setNode(v);
+    }
+  }, this);
+  return this;
+};
+
+Graph.prototype.setNode = function(v, value) {
+  if (_.has(this._nodes, v)) {
+    if (arguments.length > 1) {
+      this._nodes[v] = value;
+    }
+    return this;
+  }
+
+  this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v);
+  if (this._isCompound) {
+    this._parent[v] = GRAPH_NODE;
+    this._children[v] = {};
+    this._children[GRAPH_NODE][v] = true;
+  }
+  this._in[v] = {};
+  this._preds[v] = {};
+  this._out[v] = {};
+  this._sucs[v] = {};
+  ++this._nodeCount;
+  return this;
+};
+
+Graph.prototype.node = function(v) {
+  return this._nodes[v];
+};
+
+Graph.prototype.hasNode = function(v) {
+  return _.has(this._nodes, v);
+};
+
+Graph.prototype.removeNode =  function(v) {
+  var self = this;
+  if (_.has(this._nodes, v)) {
+    var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); };
+    delete this._nodes[v];
+    if (this._isCompound) {
+      this._removeFromParentsChildList(v);
+      delete this._parent[v];
+      _.each(this.children(v), function(child) {
+        this.setParent(child);
+      }, this);
+      delete this._children[v];
+    }
+    _.each(_.keys(this._in[v]), removeEdge);
+    delete this._in[v];
+    delete this._preds[v];
+    _.each(_.keys(this._out[v]), removeEdge);
+    delete this._out[v];
+    delete this._sucs[v];
+    --this._nodeCount;
+  }
+  return this;
+};
+
+Graph.prototype.setParent = function(v, parent) {
+  if (!this._isCompound) {
+    throw new Error("Cannot set parent in a non-compound graph");
+  }
+
+  if (_.isUndefined(parent)) {
+    parent = GRAPH_NODE;
+  } else {
+    for (var ancestor = parent;
+         !_.isUndefined(ancestor);
+         ancestor = this.parent(ancestor)) {
+      if (ancestor === v) {
+        throw new Error("Setting " + parent+ " as parent of " + v +
+                        " would create create a cycle");
+      }
+    }
+
+    this.setNode(parent);
+  }
+
+  this.setNode(v);
+  this._removeFromParentsChildList(v);
+  this._parent[v] = parent;
+  this._children[parent][v] = true;
+  return this;
+};
+
+Graph.prototype._removeFromParentsChildList = function(v) {
+  delete this._children[this._parent[v]][v];
+};
+
+Graph.prototype.parent = function(v) {
+  if (this._isCompound) {
+    var parent = this._parent[v];
+    if (parent !== GRAPH_NODE) {
+      return parent;
+    }
+  }
+};
+
+Graph.prototype.children = function(v) {
+  if (_.isUndefined(v)) {
+    v = GRAPH_NODE;
+  }
+
+  if (this._isCompound) {
+    var children = this._children[v];
+    if (children) {
+      return _.keys(children);
+    }
+  } else if (v === GRAPH_NODE) {
+    return this.nodes();
+  } else if (this.hasNode(v)) {
+    return [];
+  }
+};
+
+Graph.prototype.predecessors = function(v) {
+  var predsV = this._preds[v];
+  if (predsV) {
+    return _.keys(predsV);
+  }
+};
+
+Graph.prototype.successors = function(v) {
+  var sucsV = this._sucs[v];
+  if (sucsV) {
+    return _.keys(sucsV);
+  }
+};
+
+Graph.prototype.neighbors = function(v) {
+  var preds = this.predecessors(v);
+  if (preds) {
+    return _.union(preds, this.successors(v));
+  }
+};
+
+/* === Edge functions ========== */
+
+Graph.prototype.setDefaultEdgeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultEdgeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.edgeCount = function() {
+  return this._edgeCount;
+};
+
+Graph.prototype.edges = function() {
+  return _.values(this._edgeObjs);
+};
+
+Graph.prototype.setPath = function(vs, value) {
+  var self = this,
+      args = arguments;
+  _.reduce(vs, function(v, w) {
+    if (args.length > 1) {
+      self.setEdge(v, w, value);
+    } else {
+      self.setEdge(v, w);
+    }
+    return w;
+  });
+  return this;
+};
+
+/*
+ * setEdge(v, w, [value, [name]])
+ * setEdge({ v, w, [name] }, [value])
+ */
+Graph.prototype.setEdge = function() {
+  var v, w, name, value,
+      valueSpecified = false;
+
+  if (_.isPlainObject(arguments[0])) {
+    v = arguments[0].v;
+    w = arguments[0].w;
+    name = arguments[0].name;
+    if (arguments.length === 2) {
+      value = arguments[1];
+      valueSpecified = true;
+    }
+  } else {
+    v = arguments[0];
+    w = arguments[1];
+    name = arguments[3];
+    if (arguments.length > 2) {
+      value = arguments[2];
+      valueSpecified = true;
+    }
+  }
+
+  v = "" + v;
+  w = "" + w;
+  if (!_.isUndefined(name)) {
+    name = "" + name;
+  }
+
+  var e = edgeArgsToId(this._isDirected, v, w, name);
+  if (_.has(this._edgeLabels, e)) {
+    if (valueSpecified) {
+      this._edgeLabels[e] = value;
+    }
+    return this;
+  }
+
+  if (!_.isUndefined(name) && !this._isMultigraph) {
+    throw new Error("Cannot set a named edge when isMultigraph = false");
+  }
+
+  // It didn't exist, so we need to create it.
+  // First ensure the nodes exist.
+  this.setNode(v);
+  this.setNode(w);
+
+  this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name);
+
+  var edgeObj = edgeArgsToObj(this._isDirected, v, w, name);
+  // Ensure we add undirected edges in a consistent way.
+  v = edgeObj.v;
+  w = edgeObj.w;
+
+  Object.freeze(edgeObj);
+  this._edgeObjs[e] = edgeObj;
+  incrementOrInitEntry(this._preds[w], v);
+  incrementOrInitEntry(this._sucs[v], w);
+  this._in[w][e] = edgeObj;
+  this._out[v][e] = edgeObj;
+  this._edgeCount++;
+  return this;
+};
+
+Graph.prototype.edge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return this._edgeLabels[e];
+};
+
+Graph.prototype.hasEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return _.has(this._edgeLabels, e);
+};
+
+Graph.prototype.removeEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name)),
+      edge = this._edgeObjs[e];
+  if (edge) {
+    v = edge.v;
+    w = edge.w;
+    delete this._edgeLabels[e];
+    delete this._edgeObjs[e];
+    decrementOrRemoveEntry(this._preds[w], v);
+    decrementOrRemoveEntry(this._sucs[v], w);
+    delete this._in[w][e];
+    delete this._out[v][e];
+    this._edgeCount--;
+  }
+  return this;
+};
+
+Graph.prototype.inEdges = function(v, u) {
+  var inV = this._in[v];
+  if (inV) {
+    var edges = _.values(inV);
+    if (!u) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.v === u; });
+  }
+};
+
+Graph.prototype.outEdges = function(v, w) {
+  var outV = this._out[v];
+  if (outV) {
+    var edges = _.values(outV);
+    if (!w) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.w === w; });
+  }
+};
+
+Graph.prototype.nodeEdges = function(v, w) {
+  var inEdges = this.inEdges(v, w);
+  if (inEdges) {
+    return inEdges.concat(this.outEdges(v, w));
+  }
+};
+
+function incrementOrInitEntry(map, k) {
+  if (_.has(map, k)) {
+    map[k]++;
+  } else {
+    map[k] = 1;
+  }
+}
+
+function decrementOrRemoveEntry(map, k) {
+  if (!--map[k]) { delete map[k]; }
+}
+
+function edgeArgsToId(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM +
+             (_.isUndefined(name) ? DEFAULT_EDGE_NAME : name);
+}
+
+function edgeArgsToObj(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  var edgeObj =  { v: v, w: w };
+  if (name) {
+    edgeObj.name = name;
+  }
+  return edgeObj;
+}
+
+function edgeObjToId(isDirected, edgeObj) {
+  return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name);
+}
+
+},{"./lodash":75}],73:[function(require,module,exports){
+// Includes only the "core" of graphlib
+module.exports = {
+  Graph: require("./graph"),
+  version: require("./version")
+};
+
+},{"./graph":72,"./version":76}],74:[function(require,module,exports){
+var _ = require("./lodash"),
+    Graph = require("./graph");
+
+module.exports = {
+  write: write,
+  read: read
+};
+
+function write(g) {
+  var json = {
+    options: {
+      directed: g.isDirected(),
+      multigraph: g.isMultigraph(),
+      compound: g.isCompound()
+    },
+    nodes: writeNodes(g),
+    edges: writeEdges(g)
+  };
+  if (!_.isUndefined(g.graph())) {
+    json.value = _.clone(g.graph());
+  }
+  return json;
+}
+
+function writeNodes(g) {
+  return _.map(g.nodes(), function(v) {
+    var nodeValue = g.node(v),
+        parent = g.parent(v),
+        node = { v: v };
+    if (!_.isUndefined(nodeValue)) {
+      node.value = nodeValue;
+    }
+    if (!_.isUndefined(parent)) {
+      node.parent = parent;
+    }
+    return node;
+  });
+}
+
+function writeEdges(g) {
+  return _.map(g.edges(), function(e) {
+    var edgeValue = g.edge(e),
+        edge = { v: e.v, w: e.w };
+    if (!_.isUndefined(e.name)) {
+      edge.name = e.name;
+    }
+    if (!_.isUndefined(edgeValue)) {
+      edge.value = edgeValue;
+    }
+    return edge;
+  });
+}
+
+function read(json) {
+  var g = new Graph(json.options).setGraph(json.value);
+  _.each(json.nodes, function(entry) {
+    g.setNode(entry.v, entry.value);
+    if (entry.parent) {
+      g.setParent(entry.v, entry.parent);
+    }
+  });
+  _.each(json.edges, function(entry) {
+    g.setEdge({ v: entry.v, w: entry.w, name: entry.name }, entry.value);
+  });
+  return g;
+}
+
+},{"./graph":72,"./lodash":75}],75:[function(require,module,exports){
+module.exports=require(20)
+},{"lodash":101}],76:[function(require,module,exports){
+module.exports = '1.0.1';
+
+},{}],77:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./lib":93,"./lib/alg":84,"./lib/json":94}],78:[function(require,module,exports){
+module.exports=require(58)
+},{"../lodash":95}],79:[function(require,module,exports){
+module.exports=require(59)
+},{"../lodash":95}],80:[function(require,module,exports){
+module.exports=require(60)
+},{"../lodash":95,"./dijkstra":81}],81:[function(require,module,exports){
+module.exports=require(61)
+},{"../data/priority-queue":91,"../lodash":95}],82:[function(require,module,exports){
+module.exports=require(62)
+},{"../lodash":95,"./tarjan":89}],83:[function(require,module,exports){
+module.exports=require(63)
+},{"../lodash":95}],84:[function(require,module,exports){
+arguments[4][64][0].apply(exports,arguments)
+},{"./components":78,"./dijkstra":81,"./dijkstra-all":80,"./find-cycles":82,"./floyd-warshall":83,"./is-acyclic":85,"./postorder":86,"./preorder":87,"./prim":88,"./tarjan":89,"./topsort":90}],85:[function(require,module,exports){
+module.exports=require(65)
+},{"./topsort":90}],86:[function(require,module,exports){
+module.exports=require(66)
+},{"./dfs":79}],87:[function(require,module,exports){
+module.exports=require(67)
+},{"./dfs":79}],88:[function(require,module,exports){
+arguments[4][68][0].apply(exports,arguments)
+},{"../data/priority-queue":91,"../graph":92,"../lodash":95}],89:[function(require,module,exports){
+module.exports=require(69)
+},{"../lodash":95}],90:[function(require,module,exports){
+module.exports=require(70)
+},{"../lodash":95}],91:[function(require,module,exports){
+module.exports=require(71)
+},{"../lodash":95}],92:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash");
+
+module.exports = Graph;
+
+var DEFAULT_EDGE_NAME = "\x00",
+    GRAPH_NODE = "\x00",
+    EDGE_KEY_DELIM = "\x01";
+
+// Implementation notes:
+//
+//  * Node id query functions should return string ids for the nodes
+//  * Edge id query functions should return an "edgeObj", edge object, that is
+//    composed of enough information to uniquely identify an edge: {v, w, name}.
+//  * Internally we use an "edgeId", a stringified form of the edgeObj, to
+//    reference edges. This is because we need a performant way to look these
+//    edges up and, object properties, which have string keys, are the closest
+//    we're going to get to a performant hashtable in JavaScript.
+
+function Graph(opts) {
+  this._isDirected = _.has(opts, "directed") ? opts.directed : true;
+  this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false;
+  this._isCompound = _.has(opts, "compound") ? opts.compound : false;
+
+  // Label for the graph itself
+  this._label = undefined;
+
+  // Defaults to be set when creating a new node
+  this._defaultNodeLabelFn = _.constant(undefined);
+
+  // Defaults to be set when creating a new edge
+  this._defaultEdgeLabelFn = _.constant(undefined);
+
+  // v -> label
+  this._nodes = {};
+
+  if (this._isCompound) {
+    // v -> parent
+    this._parent = {};
+
+    // v -> children
+    this._children = {};
+    this._children[GRAPH_NODE] = {};
+  }
+
+  // v -> edgeObj
+  this._in = {};
+
+  // u -> v -> Number
+  this._preds = {};
+
+  // v -> edgeObj
+  this._out = {};
+
+  // v -> w -> Number
+  this._sucs = {};
+
+  // e -> edgeObj
+  this._edgeObjs = {};
+
+  // e -> label
+  this._edgeLabels = {};
+}
+
+/* Number of nodes in the graph. Should only be changed by the implementation. */
+Graph.prototype._nodeCount = 0;
+
+/* Number of edges in the graph. Should only be changed by the implementation. */
+Graph.prototype._edgeCount = 0;
+
+
+/* === Graph functions ========= */
+
+Graph.prototype.isDirected = function() {
+  return this._isDirected;
+};
+
+Graph.prototype.isMultigraph = function() {
+  return this._isMultigraph;
+};
+
+Graph.prototype.isCompound = function() {
+  return this._isCompound;
+};
+
+Graph.prototype.setGraph = function(label) {
+  this._label = label;
+  return this;
+};
+
+Graph.prototype.graph = function() {
+  return this._label;
+};
+
+
+/* === Node functions ========== */
+
+Graph.prototype.setDefaultNodeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultNodeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.nodeCount = function() {
+  return this._nodeCount;
+};
+
+Graph.prototype.nodes = function() {
+  return _.keys(this._nodes);
+};
+
+Graph.prototype.sources = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._in[v]);
+  }, this);
+};
+
+Graph.prototype.sinks = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._out[v]);
+  }, this);
+};
+
+Graph.prototype.setNodes = function(vs, value) {
+  var args = arguments;
+  _.each(vs, function(v) {
+    if (args.length > 1) {
+      this.setNode(v, value);
+    } else {
+      this.setNode(v);
+    }
+  }, this);
+  return this;
+};
+
+Graph.prototype.setNode = function(v, value) {
+  if (_.has(this._nodes, v)) {
+    if (arguments.length > 1) {
+      this._nodes[v] = value;
+    }
+    return this;
+  }
+
+  this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v);
+  if (this._isCompound) {
+    this._parent[v] = GRAPH_NODE;
+    this._children[v] = {};
+    this._children[GRAPH_NODE][v] = true;
+  }
+  this._in[v] = {};
+  this._preds[v] = {};
+  this._out[v] = {};
+  this._sucs[v] = {};
+  ++this._nodeCount;
+  return this;
+};
+
+Graph.prototype.node = function(v) {
+  return this._nodes[v];
+};
+
+Graph.prototype.hasNode = function(v) {
+  return _.has(this._nodes, v);
+};
+
+Graph.prototype.removeNode =  function(v) {
+  var self = this;
+  if (_.has(this._nodes, v)) {
+    var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); };
+    delete this._nodes[v];
+    if (this._isCompound) {
+      this._removeFromParentsChildList(v);
+      delete this._parent[v];
+      _.each(this.children(v), function(child) {
+        this.setParent(child);
+      }, this);
+      delete this._children[v];
+    }
+    _.each(_.keys(this._in[v]), removeEdge);
+    delete this._in[v];
+    delete this._preds[v];
+    _.each(_.keys(this._out[v]), removeEdge);
+    delete this._out[v];
+    delete this._sucs[v];
+    --this._nodeCount;
+  }
+  return this;
+};
+
+Graph.prototype.setParent = function(v, parent) {
+  if (!this._isCompound) {
+    throw new Error("Cannot set parent in a non-compound graph");
+  }
+
+  if (_.isUndefined(parent)) {
+    parent = GRAPH_NODE;
+  } else {
+    for (var ancestor = parent;
+         !_.isUndefined(ancestor);
+         ancestor = this.parent(ancestor)) {
+      if (ancestor === v) {
+        throw new Error("Setting " + parent+ " as parent of " + v +
+                        " would create create a cycle");
+      }
+    }
+
+    this.setNode(parent);
+  }
+
+  this.setNode(v);
+  this._removeFromParentsChildList(v);
+  this._parent[v] = parent;
+  this._children[parent][v] = true;
+  return this;
+};
+
+Graph.prototype._removeFromParentsChildList = function(v) {
+  delete this._children[this._parent[v]][v];
+};
+
+Graph.prototype.parent = function(v) {
+  if (this._isCompound) {
+    var parent = this._parent[v];
+    if (parent !== GRAPH_NODE) {
+      return parent;
+    }
+  }
+};
+
+Graph.prototype.children = function(v) {
+  if (_.isUndefined(v)) {
+    v = GRAPH_NODE;
+  }
+
+  if (this._isCompound) {
+    var children = this._children[v];
+    if (children) {
+      return _.keys(children);
+    }
+  } else if (v === GRAPH_NODE) {
+    return this.nodes();
+  } else if (this.hasNode(v)) {
+    return [];
+  }
+};
+
+Graph.prototype.predecessors = function(v) {
+  var predsV = this._preds[v];
+  if (predsV) {
+    return _.keys(predsV);
+  }
+};
+
+Graph.prototype.successors = function(v) {
+  var sucsV = this._sucs[v];
+  if (sucsV) {
+    return _.keys(sucsV);
+  }
+};
+
+Graph.prototype.neighbors = function(v) {
+  var preds = this.predecessors(v);
+  if (preds) {
+    return _.union(preds, this.successors(v));
+  }
+};
+
+/* === Edge functions ========== */
+
+Graph.prototype.setDefaultEdgeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultEdgeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.edgeCount = function() {
+  return this._edgeCount;
+};
+
+Graph.prototype.edges = function() {
+  return _.values(this._edgeObjs);
+};
+
+Graph.prototype.setPath = function(vs, value) {
+  var self = this,
+      args = arguments;
+  _.reduce(vs, function(v, w) {
+    if (args.length > 1) {
+      self.setEdge(v, w, value);
+    } else {
+      self.setEdge(v, w);
+    }
+    return w;
+  });
+  return this;
+};
+
+/*
+ * setEdge(v, w, [value, [name]])
+ * setEdge({ v, w, [name] }, [value])
+ */
+Graph.prototype.setEdge = function(v, w, value, name) {
+  var valueSpecified = arguments.length > 2;
+
+  v = String(v);
+  w = String(w);
+  if (!_.isUndefined(name)) {
+    name = String(name);
+  }
+
+  if (_.isPlainObject(arguments[0])) {
+    v = arguments[0].v;
+    w = arguments[0].w;
+    name = arguments[0].name;
+    if (arguments.length === 2) {
+      value = arguments[1];
+      valueSpecified = true;
+    }
+  }
+
+  var e = edgeArgsToId(this._isDirected, v, w, name);
+  if (_.has(this._edgeLabels, e)) {
+    if (valueSpecified) {
+      this._edgeLabels[e] = value;
+    }
+    return this;
+  }
+
+  if (!_.isUndefined(name) && !this._isMultigraph) {
+    throw new Error("Cannot set a named edge when isMultigraph = false");
+  }
+
+  // It didn't exist, so we need to create it.
+  // First ensure the nodes exist.
+  this.setNode(v);
+  this.setNode(w);
+
+  this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name);
+
+  var edgeObj = edgeArgsToObj(this._isDirected, v, w, name);
+  // Ensure we add undirected edges in a consistent way.
+  v = edgeObj.v;
+  w = edgeObj.w;
+
+  Object.freeze(edgeObj);
+  this._edgeObjs[e] = edgeObj;
+  incrementOrInitEntry(this._preds[w], v);
+  incrementOrInitEntry(this._sucs[v], w);
+  this._in[w][e] = edgeObj;
+  this._out[v][e] = edgeObj;
+  this._edgeCount++;
+  return this;
+};
+
+Graph.prototype.edge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return this._edgeLabels[e];
+};
+
+Graph.prototype.hasEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return _.has(this._edgeLabels, e);
+};
+
+Graph.prototype.removeEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name)),
+      edge = this._edgeObjs[e];
+  if (edge) {
+    v = edge.v;
+    w = edge.w;
+    delete this._edgeLabels[e];
+    delete this._edgeObjs[e];
+    decrementOrRemoveEntry(this._preds[w], v);
+    decrementOrRemoveEntry(this._sucs[v], w);
+    delete this._in[w][e];
+    delete this._out[v][e];
+    this._edgeCount--;
+  }
+  return this;
+};
+
+Graph.prototype.inEdges = function(v, u) {
+  var inV = this._in[v];
+  if (inV) {
+    var edges = _.values(inV);
+    if (!u) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.v === u; });
+  }
+};
+
+Graph.prototype.outEdges = function(v, w) {
+  var outV = this._out[v];
+  if (outV) {
+    var edges = _.values(outV);
+    if (!w) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.w === w; });
+  }
+};
+
+Graph.prototype.nodeEdges = function(v, w) {
+  var inEdges = this.inEdges(v, w);
+  if (inEdges) {
+    return inEdges.concat(this.outEdges(v, w));
+  }
+};
+
+function incrementOrInitEntry(map, k) {
+  if (_.has(map, k)) {
+    map[k]++;
+  } else {
+    map[k] = 1;
+  }
+}
+
+function decrementOrRemoveEntry(map, k) {
+  if (!--map[k]) { delete map[k]; }
+}
+
+function edgeArgsToId(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM +
+             (_.isUndefined(name) ? DEFAULT_EDGE_NAME : name);
+}
+
+function edgeArgsToObj(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  var edgeObj =  { v: v, w: w };
+  if (name) {
+    edgeObj.name = name;
+  }
+  return edgeObj;
+}
+
+function edgeObjToId(isDirected, edgeObj) {
+  return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name);
+}
+
+},{"./lodash":95}],93:[function(require,module,exports){
+arguments[4][73][0].apply(exports,arguments)
+},{"./graph":92,"./version":96}],94:[function(require,module,exports){
+arguments[4][74][0].apply(exports,arguments)
+},{"./graph":92,"./lodash":95}],95:[function(require,module,exports){
+module.exports=require(20)
+},{"lodash":101}],96:[function(require,module,exports){
+module.exports = '0.9.1';
+
+},{}],97:[function(require,module,exports){
+
+},{}],98:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -260,7 +5811,7 @@ var substr = 'ab'.substr(-1) === 'b'
 ;
 
 }).call(this,require("1YiZ5S"))
-},{"1YiZ5S":3}],3:[function(require,module,exports){
+},{"1YiZ5S":99}],99:[function(require,module,exports){
 // shim for using process in browser
 
 var process = module.exports = {};
@@ -325,7 +5876,7 @@ process.chdir = function (dir) {
     throw new Error('process.chdir is not supported');
 };
 
-},{}],4:[function(require,module,exports){
+},{}],100:[function(require,module,exports){
 (function (global){
 /*! http://mths.be/he v0.5.0 by @mathias | MIT license */
 ;(function(root) {
@@ -658,14 +6209,6803 @@ process.chdir = function (dir) {
 }(this));
 
 }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],5:[function(require,module,exports){
+},{}],101:[function(require,module,exports){
+(function (global){
+/**
+ * @license
+ * Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/>
+ * Build: `lodash modern -o ./dist/lodash.js`
+ * Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <http://lodash.com/license>
+ */
+;(function() {
+
+  /** Used as a safe reference for `undefined` in pre ES5 environments */
+  var undefined;
+
+  /** Used to pool arrays and objects used internally */
+  var arrayPool = [],
+      objectPool = [];
+
+  /** Used to generate unique IDs */
+  var idCounter = 0;
+
+  /** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
+  var keyPrefix = +new Date + '';
+
+  /** Used as the size when optimizations are enabled for large arrays */
+  var largeArraySize = 75;
+
+  /** Used as the max size of the `arrayPool` and `objectPool` */
+  var maxPoolSize = 40;
+
+  /** Used to detect and test whitespace */
+  var whitespace = (
+    // whitespace
+    ' \t\x0B\f\xA0\ufeff' +
+
+    // line terminators
+    '\n\r\u2028\u2029' +
+
+    // unicode category "Zs" space separators
+    '\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
+  );
+
+  /** Used to match empty string literals in compiled template source */
+  var reEmptyStringLeading = /\b__p \+= '';/g,
+      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+
+  /**
+   * Used to match ES6 template delimiters
+   * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-string-literals
+   */
+  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+
+  /** Used to match regexp flags from their coerced string values */
+  var reFlags = /\w*$/;
+
+  /** Used to detected named functions */
+  var reFuncName = /^\s*function[ \n\r\t]+\w/;
+
+  /** Used to match "interpolate" template delimiters */
+  var reInterpolate = /<%=([\s\S]+?)%>/g;
+
+  /** Used to match leading whitespace and zeros to be removed */
+  var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
+
+  /** Used to ensure capturing order of template delimiters */
+  var reNoMatch = /($^)/;
+
+  /** Used to detect functions containing a `this` reference */
+  var reThis = /\bthis\b/;
+
+  /** Used to match unescaped characters in compiled string literals */
+  var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
+
+  /** Used to assign default `context` object properties */
+  var contextProps = [
+    'Array', 'Boolean', 'Date', 'Function', 'Math', 'Number', 'Object',
+    'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
+    'parseInt', 'setTimeout'
+  ];
+
+  /** Used to make template sourceURLs easier to identify */
+  var templateCounter = 0;
+
+  /** `Object#toString` result shortcuts */
+  var argsClass = '[object Arguments]',
+      arrayClass = '[object Array]',
+      boolClass = '[object Boolean]',
+      dateClass = '[object Date]',
+      funcClass = '[object Function]',
+      numberClass = '[object Number]',
+      objectClass = '[object Object]',
+      regexpClass = '[object RegExp]',
+      stringClass = '[object String]';
+
+  /** Used to identify object classifications that `_.clone` supports */
+  var cloneableClasses = {};
+  cloneableClasses[funcClass] = false;
+  cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
+  cloneableClasses[boolClass] = cloneableClasses[dateClass] =
+  cloneableClasses[numberClass] = cloneableClasses[objectClass] =
+  cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
+
+  /** Used as an internal `_.debounce` options object */
+  var debounceOptions = {
+    'leading': false,
+    'maxWait': 0,
+    'trailing': false
+  };
+
+  /** Used as the property descriptor for `__bindData__` */
+  var descriptor = {
+    'configurable': false,
+    'enumerable': false,
+    'value': null,
+    'writable': false
+  };
+
+  /** Used to determine if values are of the language type Object */
+  var objectTypes = {
+    'boolean': false,
+    'function': true,
+    'object': true,
+    'number': false,
+    'string': false,
+    'undefined': false
+  };
+
+  /** Used to escape characters for inclusion in compiled string literals */
+  var stringEscapes = {
+    '\\': '\\',
+    "'": "'",
+    '\n': 'n',
+    '\r': 'r',
+    '\t': 't',
+    '\u2028': 'u2028',
+    '\u2029': 'u2029'
+  };
+
+  /** Used as a reference to the global object */
+  var root = (objectTypes[typeof window] && window) || this;
+
+  /** Detect free variable `exports` */
+  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+
+  /** Detect free variable `module` */
+  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
+
+  /** Detect the popular CommonJS extension `module.exports` */
+  var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
+
+  /** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
+  var freeGlobal = objectTypes[typeof global] && global;
+  if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
+    root = freeGlobal;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * The base implementation of `_.indexOf` without support for binary searches
+   * or `fromIndex` constraints.
+   *
+   * @private
+   * @param {Array} array The array to search.
+   * @param {*} value The value to search for.
+   * @param {number} [fromIndex=0] The index to search from.
+   * @returns {number} Returns the index of the matched value or `-1`.
+   */
+  function baseIndexOf(array, value, fromIndex) {
+    var index = (fromIndex || 0) - 1,
+        length = array ? array.length : 0;
+
+    while (++index < length) {
+      if (array[index] === value) {
+        return index;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * An implementation of `_.contains` for cache objects that mimics the return
+   * signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
+   *
+   * @private
+   * @param {Object} cache The cache object to inspect.
+   * @param {*} value The value to search for.
+   * @returns {number} Returns `0` if `value` is found, else `-1`.
+   */
+  function cacheIndexOf(cache, value) {
+    var type = typeof value;
+    cache = cache.cache;
+
+    if (type == 'boolean' || value == null) {
+      return cache[value] ? 0 : -1;
+    }
+    if (type != 'number' && type != 'string') {
+      type = 'object';
+    }
+    var key = type == 'number' ? value : keyPrefix + value;
+    cache = (cache = cache[type]) && cache[key];
+
+    return type == 'object'
+      ? (cache && baseIndexOf(cache, value) > -1 ? 0 : -1)
+      : (cache ? 0 : -1);
+  }
+
+  /**
+   * Adds a given value to the corresponding cache object.
+   *
+   * @private
+   * @param {*} value The value to add to the cache.
+   */
+  function cachePush(value) {
+    var cache = this.cache,
+        type = typeof value;
+
+    if (type == 'boolean' || value == null) {
+      cache[value] = true;
+    } else {
+      if (type != 'number' && type != 'string') {
+        type = 'object';
+      }
+      var key = type == 'number' ? value : keyPrefix + value,
+          typeCache = cache[type] || (cache[type] = {});
+
+      if (type == 'object') {
+        (typeCache[key] || (typeCache[key] = [])).push(value);
+      } else {
+        typeCache[key] = true;
+      }
+    }
+  }
+
+  /**
+   * Used by `_.max` and `_.min` as the default callback when a given
+   * collection is a string value.
+   *
+   * @private
+   * @param {string} value The character to inspect.
+   * @returns {number} Returns the code unit of given character.
+   */
+  function charAtCallback(value) {
+    return value.charCodeAt(0);
+  }
+
+  /**
+   * Used by `sortBy` to compare transformed `collection` elements, stable sorting
+   * them in ascending order.
+   *
+   * @private
+   * @param {Object} a The object to compare to `b`.
+   * @param {Object} b The object to compare to `a`.
+   * @returns {number} Returns the sort order indicator of `1` or `-1`.
+   */
+  function compareAscending(a, b) {
+    var ac = a.criteria,
+        bc = b.criteria,
+        index = -1,
+        length = ac.length;
+
+    while (++index < length) {
+      var value = ac[index],
+          other = bc[index];
+
+      if (value !== other) {
+        if (value > other || typeof value == 'undefined') {
+          return 1;
+        }
+        if (value < other || typeof other == 'undefined') {
+          return -1;
+        }
+      }
+    }
+    // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+    // that causes it, under certain circumstances, to return the same value for
+    // `a` and `b`. See https://github.com/jashkenas/underscore/pull/1247
+    //
+    // This also ensures a stable sort in V8 and other engines.
+    // See http://code.google.com/p/v8/issues/detail?id=90
+    return a.index - b.index;
+  }
+
+  /**
+   * Creates a cache object to optimize linear searches of large arrays.
+   *
+   * @private
+   * @param {Array} [array=[]] The array to search.
+   * @returns {null|Object} Returns the cache object or `null` if caching should not be used.
+   */
+  function createCache(array) {
+    var index = -1,
+        length = array.length,
+        first = array[0],
+        mid = array[(length / 2) | 0],
+        last = array[length - 1];
+
+    if (first && typeof first == 'object' &&
+        mid && typeof mid == 'object' && last && typeof last == 'object') {
+      return false;
+    }
+    var cache = getObject();
+    cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
+
+    var result = getObject();
+    result.array = array;
+    result.cache = cache;
+    result.push = cachePush;
+
+    while (++index < length) {
+      result.push(array[index]);
+    }
+    return result;
+  }
+
+  /**
+   * Used by `template` to escape characters for inclusion in compiled
+   * string literals.
+   *
+   * @private
+   * @param {string} match The matched character to escape.
+   * @returns {string} Returns the escaped character.
+   */
+  function escapeStringChar(match) {
+    return '\\' + stringEscapes[match];
+  }
+
+  /**
+   * Gets an array from the array pool or creates a new one if the pool is empty.
+   *
+   * @private
+   * @returns {Array} The array from the pool.
+   */
+  function getArray() {
+    return arrayPool.pop() || [];
+  }
+
+  /**
+   * Gets an object from the object pool or creates a new one if the pool is empty.
+   *
+   * @private
+   * @returns {Object} The object from the pool.
+   */
+  function getObject() {
+    return objectPool.pop() || {
+      'array': null,
+      'cache': null,
+      'criteria': null,
+      'false': false,
+      'index': 0,
+      'null': false,
+      'number': null,
+      'object': null,
+      'push': null,
+      'string': null,
+      'true': false,
+      'undefined': false,
+      'value': null
+    };
+  }
+
+  /**
+   * Releases the given array back to the array pool.
+   *
+   * @private
+   * @param {Array} [array] The array to release.
+   */
+  function releaseArray(array) {
+    array.length = 0;
+    if (arrayPool.length < maxPoolSize) {
+      arrayPool.push(array);
+    }
+  }
+
+  /**
+   * Releases the given object back to the object pool.
+   *
+   * @private
+   * @param {Object} [object] The object to release.
+   */
+  function releaseObject(object) {
+    var cache = object.cache;
+    if (cache) {
+      releaseObject(cache);
+    }
+    object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
+    if (objectPool.length < maxPoolSize) {
+      objectPool.push(object);
+    }
+  }
+
+  /**
+   * Slices the `collection` from the `start` index up to, but not including,
+   * the `end` index.
+   *
+   * Note: This function is used instead of `Array#slice` to support node lists
+   * in IE < 9 and to ensure dense arrays are returned.
+   *
+   * @private
+   * @param {Array|Object|string} collection The collection to slice.
+   * @param {number} start The start index.
+   * @param {number} end The end index.
+   * @returns {Array} Returns the new array.
+   */
+  function slice(array, start, end) {
+    start || (start = 0);
+    if (typeof end == 'undefined') {
+      end = array ? array.length : 0;
+    }
+    var index = -1,
+        length = end - start || 0,
+        result = Array(length < 0 ? 0 : length);
+
+    while (++index < length) {
+      result[index] = array[start + index];
+    }
+    return result;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * Create a new `lodash` function using the given context object.
+   *
+   * @static
+   * @memberOf _
+   * @category Utilities
+   * @param {Object} [context=root] The context object.
+   * @returns {Function} Returns the `lodash` function.
+   */
+  function runInContext(context) {
+    // Avoid issues with some ES3 environments that attempt to use values, named
+    // after built-in constructors like `Object`, for the creation of literals.
+    // ES5 clears this up by stating that literals must use built-in constructors.
+    // See http://es5.github.io/#x11.1.5.
+    context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
+
+    /** Native constructor references */
+    var Array = context.Array,
+        Boolean = context.Boolean,
+        Date = context.Date,
+        Function = context.Function,
+        Math = context.Math,
+        Number = context.Number,
+        Object = context.Object,
+        RegExp = context.RegExp,
+        String = context.String,
+        TypeError = context.TypeError;
+
+    /**
+     * Used for `Array` method references.
+     *
+     * Normally `Array.prototype` would suffice, however, using an array literal
+     * avoids issues in Narwhal.
+     */
+    var arrayRef = [];
+
+    /** Used for native method references */
+    var objectProto = Object.prototype;
+
+    /** Used to restore the original `_` reference in `noConflict` */
+    var oldDash = context._;
+
+    /** Used to resolve the internal [[Class]] of values */
+    var toString = objectProto.toString;
+
+    /** Used to detect if a method is native */
+    var reNative = RegExp('^' +
+      String(toString)
+        .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+        .replace(/toString| for [^\]]+/g, '.*?') + '$'
+    );
+
+    /** Native method shortcuts */
+    var ceil = Math.ceil,
+        clearTimeout = context.clearTimeout,
+        floor = Math.floor,
+        fnToString = Function.prototype.toString,
+        getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
+        hasOwnProperty = objectProto.hasOwnProperty,
+        push = arrayRef.push,
+        setTimeout = context.setTimeout,
+        splice = arrayRef.splice,
+        unshift = arrayRef.unshift;
+
+    /** Used to set meta data on functions */
+    var defineProperty = (function() {
+      // IE 8 only accepts DOM elements
+      try {
+        var o = {},
+            func = isNative(func = Object.defineProperty) && func,
+            result = func(o, o, o) && func;
+      } catch(e) { }
+      return result;
+    }());
+
+    /* Native method shortcuts for methods with the same name as other `lodash` methods */
+    var nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
+        nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
+        nativeIsFinite = context.isFinite,
+        nativeIsNaN = context.isNaN,
+        nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
+        nativeMax = Math.max,
+        nativeMin = Math.min,
+        nativeParseInt = context.parseInt,
+        nativeRandom = Math.random;
+
+    /** Used to lookup a built-in constructor by [[Class]] */
+    var ctorByClass = {};
+    ctorByClass[arrayClass] = Array;
+    ctorByClass[boolClass] = Boolean;
+    ctorByClass[dateClass] = Date;
+    ctorByClass[funcClass] = Function;
+    ctorByClass[objectClass] = Object;
+    ctorByClass[numberClass] = Number;
+    ctorByClass[regexpClass] = RegExp;
+    ctorByClass[stringClass] = String;
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a `lodash` object which wraps the given value to enable intuitive
+     * method chaining.
+     *
+     * In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
+     * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
+     * and `unshift`
+     *
+     * Chaining is supported in custom builds as long as the `value` method is
+     * implicitly or explicitly included in the build.
+     *
+     * The chainable wrapper functions are:
+     * `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
+     * `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
+     * `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
+     * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
+     * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
+     * `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
+     * `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
+     * `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
+     * `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
+     * `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
+     * and `zip`
+     *
+     * The non-chainable wrapper functions are:
+     * `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
+     * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
+     * `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
+     * `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
+     * `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
+     * `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
+     * `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
+     * `template`, `unescape`, `uniqueId`, and `value`
+     *
+     * The wrapper functions `first` and `last` return wrapped values when `n` is
+     * provided, otherwise they return unwrapped values.
+     *
+     * Explicit chaining can be enabled by using the `_.chain` method.
+     *
+     * @name _
+     * @constructor
+     * @category Chaining
+     * @param {*} value The value to wrap in a `lodash` instance.
+     * @returns {Object} Returns a `lodash` instance.
+     * @example
+     *
+     * var wrapped = _([1, 2, 3]);
+     *
+     * // returns an unwrapped value
+     * wrapped.reduce(function(sum, num) {
+     *   return sum + num;
+     * });
+     * // => 6
+     *
+     * // returns a wrapped value
+     * var squares = wrapped.map(function(num) {
+     *   return num * num;
+     * });
+     *
+     * _.isArray(squares);
+     * // => false
+     *
+     * _.isArray(squares.value());
+     * // => true
+     */
+    function lodash(value) {
+      // don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
+      return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
+       ? value
+       : new lodashWrapper(value);
+    }
+
+    /**
+     * A fast path for creating `lodash` wrapper objects.
+     *
+     * @private
+     * @param {*} value The value to wrap in a `lodash` instance.
+     * @param {boolean} chainAll A flag to enable chaining for all methods
+     * @returns {Object} Returns a `lodash` instance.
+     */
+    function lodashWrapper(value, chainAll) {
+      this.__chain__ = !!chainAll;
+      this.__wrapped__ = value;
+    }
+    // ensure `new lodashWrapper` is an instance of `lodash`
+    lodashWrapper.prototype = lodash.prototype;
+
+    /**
+     * An object used to flag environments features.
+     *
+     * @static
+     * @memberOf _
+     * @type Object
+     */
+    var support = lodash.support = {};
+
+    /**
+     * Detect if functions can be decompiled by `Function#toString`
+     * (all but PS3 and older Opera mobile browsers & avoided in Windows 8 apps).
+     *
+     * @memberOf _.support
+     * @type boolean
+     */
+    support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
+
+    /**
+     * Detect if `Function#name` is supported (all but IE).
+     *
+     * @memberOf _.support
+     * @type boolean
+     */
+    support.funcNames = typeof Function.name == 'string';
+
+    /**
+     * By default, the template delimiters used by Lo-Dash are similar to those in
+     * embedded Ruby (ERB). Change the following template settings to use alternative
+     * delimiters.
+     *
+     * @static
+     * @memberOf _
+     * @type Object
+     */
+    lodash.templateSettings = {
+
+      /**
+       * Used to detect `data` property values to be HTML-escaped.
+       *
+       * @memberOf _.templateSettings
+       * @type RegExp
+       */
+      'escape': /<%-([\s\S]+?)%>/g,
+
+      /**
+       * Used to detect code to be evaluated.
+       *
+       * @memberOf _.templateSettings
+       * @type RegExp
+       */
+      'evaluate': /<%([\s\S]+?)%>/g,
+
+      /**
+       * Used to detect `data` property values to inject.
+       *
+       * @memberOf _.templateSettings
+       * @type RegExp
+       */
+      'interpolate': reInterpolate,
+
+      /**
+       * Used to reference the data object in the template text.
+       *
+       * @memberOf _.templateSettings
+       * @type string
+       */
+      'variable': '',
+
+      /**
+       * Used to import variables into the compiled template.
+       *
+       * @memberOf _.templateSettings
+       * @type Object
+       */
+      'imports': {
+
+        /**
+         * A reference to the `lodash` function.
+         *
+         * @memberOf _.templateSettings.imports
+         * @type Function
+         */
+        '_': lodash
+      }
+    };
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * The base implementation of `_.bind` that creates the bound function and
+     * sets its meta data.
+     *
+     * @private
+     * @param {Array} bindData The bind data array.
+     * @returns {Function} Returns the new bound function.
+     */
+    function baseBind(bindData) {
+      var func = bindData[0],
+          partialArgs = bindData[2],
+          thisArg = bindData[4];
+
+      function bound() {
+        // `Function#bind` spec
+        // http://es5.github.io/#x15.3.4.5
+        if (partialArgs) {
+          // avoid `arguments` object deoptimizations by using `slice` instead
+          // of `Array.prototype.slice.call` and not assigning `arguments` to a
+          // variable as a ternary expression
+          var args = slice(partialArgs);
+          push.apply(args, arguments);
+        }
+        // mimic the constructor's `return` behavior
+        // http://es5.github.io/#x13.2.2
+        if (this instanceof bound) {
+          // ensure `new bound` is an instance of `func`
+          var thisBinding = baseCreate(func.prototype),
+              result = func.apply(thisBinding, args || arguments);
+          return isObject(result) ? result : thisBinding;
+        }
+        return func.apply(thisArg, args || arguments);
+      }
+      setBindData(bound, bindData);
+      return bound;
+    }
+
+    /**
+     * The base implementation of `_.clone` without argument juggling or support
+     * for `thisArg` binding.
+     *
+     * @private
+     * @param {*} value The value to clone.
+     * @param {boolean} [isDeep=false] Specify a deep clone.
+     * @param {Function} [callback] The function to customize cloning values.
+     * @param {Array} [stackA=[]] Tracks traversed source objects.
+     * @param {Array} [stackB=[]] Associates clones with source counterparts.
+     * @returns {*} Returns the cloned value.
+     */
+    function baseClone(value, isDeep, callback, stackA, stackB) {
+      if (callback) {
+        var result = callback(value);
+        if (typeof result != 'undefined') {
+          return result;
+        }
+      }
+      // inspect [[Class]]
+      var isObj = isObject(value);
+      if (isObj) {
+        var className = toString.call(value);
+        if (!cloneableClasses[className]) {
+          return value;
+        }
+        var ctor = ctorByClass[className];
+        switch (className) {
+          case boolClass:
+          case dateClass:
+            return new ctor(+value);
+
+          case numberClass:
+          case stringClass:
+            return new ctor(value);
+
+          case regexpClass:
+            result = ctor(value.source, reFlags.exec(value));
+            result.lastIndex = value.lastIndex;
+            return result;
+        }
+      } else {
+        return value;
+      }
+      var isArr = isArray(value);
+      if (isDeep) {
+        // check for circular references and return corresponding clone
+        var initedStack = !stackA;
+        stackA || (stackA = getArray());
+        stackB || (stackB = getArray());
+
+        var length = stackA.length;
+        while (length--) {
+          if (stackA[length] == value) {
+            return stackB[length];
+          }
+        }
+        result = isArr ? ctor(value.length) : {};
+      }
+      else {
+        result = isArr ? slice(value) : assign({}, value);
+      }
+      // add array properties assigned by `RegExp#exec`
+      if (isArr) {
+        if (hasOwnProperty.call(value, 'index')) {
+          result.index = value.index;
+        }
+        if (hasOwnProperty.call(value, 'input')) {
+          result.input = value.input;
+        }
+      }
+      // exit for shallow clone
+      if (!isDeep) {
+        return result;
+      }
+      // add the source value to the stack of traversed objects
+      // and associate it with its clone
+      stackA.push(value);
+      stackB.push(result);
+
+      // recursively populate clone (susceptible to call stack limits)
+      (isArr ? forEach : forOwn)(value, function(objValue, key) {
+        result[key] = baseClone(objValue, isDeep, callback, stackA, stackB);
+      });
+
+      if (initedStack) {
+        releaseArray(stackA);
+        releaseArray(stackB);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.create` without support for assigning
+     * properties to the created object.
+     *
+     * @private
+     * @param {Object} prototype The object to inherit from.
+     * @returns {Object} Returns the new object.
+     */
+    function baseCreate(prototype, properties) {
+      return isObject(prototype) ? nativeCreate(prototype) : {};
+    }
+    // fallback for browsers without `Object.create`
+    if (!nativeCreate) {
+      baseCreate = (function() {
+        function Object() {}
+        return function(prototype) {
+          if (isObject(prototype)) {
+            Object.prototype = prototype;
+            var result = new Object;
+            Object.prototype = null;
+          }
+          return result || context.Object();
+        };
+      }());
+    }
+
+    /**
+     * The base implementation of `_.createCallback` without support for creating
+     * "_.pluck" or "_.where" style callbacks.
+     *
+     * @private
+     * @param {*} [func=identity] The value to convert to a callback.
+     * @param {*} [thisArg] The `this` binding of the created callback.
+     * @param {number} [argCount] The number of arguments the callback accepts.
+     * @returns {Function} Returns a callback function.
+     */
+    function baseCreateCallback(func, thisArg, argCount) {
+      if (typeof func != 'function') {
+        return identity;
+      }
+      // exit early for no `thisArg` or already bound by `Function#bind`
+      if (typeof thisArg == 'undefined' || !('prototype' in func)) {
+        return func;
+      }
+      var bindData = func.__bindData__;
+      if (typeof bindData == 'undefined') {
+        if (support.funcNames) {
+          bindData = !func.name;
+        }
+        bindData = bindData || !support.funcDecomp;
+        if (!bindData) {
+          var source = fnToString.call(func);
+          if (!support.funcNames) {
+            bindData = !reFuncName.test(source);
+          }
+          if (!bindData) {
+            // checks if `func` references the `this` keyword and stores the result
+            bindData = reThis.test(source);
+            setBindData(func, bindData);
+          }
+        }
+      }
+      // exit early if there are no `this` references or `func` is bound
+      if (bindData === false || (bindData !== true && bindData[1] & 1)) {
+        return func;
+      }
+      switch (argCount) {
+        case 1: return function(value) {
+          return func.call(thisArg, value);
+        };
+        case 2: return function(a, b) {
+          return func.call(thisArg, a, b);
+        };
+        case 3: return function(value, index, collection) {
+          return func.call(thisArg, value, index, collection);
+        };
+        case 4: return function(accumulator, value, index, collection) {
+          return func.call(thisArg, accumulator, value, index, collection);
+        };
+      }
+      return bind(func, thisArg);
+    }
+
+    /**
+     * The base implementation of `createWrapper` that creates the wrapper and
+     * sets its meta data.
+     *
+     * @private
+     * @param {Array} bindData The bind data array.
+     * @returns {Function} Returns the new function.
+     */
+    function baseCreateWrapper(bindData) {
+      var func = bindData[0],
+          bitmask = bindData[1],
+          partialArgs = bindData[2],
+          partialRightArgs = bindData[3],
+          thisArg = bindData[4],
+          arity = bindData[5];
+
+      var isBind = bitmask & 1,
+          isBindKey = bitmask & 2,
+          isCurry = bitmask & 4,
+          isCurryBound = bitmask & 8,
+          key = func;
+
+      function bound() {
+        var thisBinding = isBind ? thisArg : this;
+        if (partialArgs) {
+          var args = slice(partialArgs);
+          push.apply(args, arguments);
+        }
+        if (partialRightArgs || isCurry) {
+          args || (args = slice(arguments));
+          if (partialRightArgs) {
+            push.apply(args, partialRightArgs);
+          }
+          if (isCurry && args.length < arity) {
+            bitmask |= 16 & ~32;
+            return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
+          }
+        }
+        args || (args = arguments);
+        if (isBindKey) {
+          func = thisBinding[key];
+        }
+        if (this instanceof bound) {
+          thisBinding = baseCreate(func.prototype);
+          var result = func.apply(thisBinding, args);
+          return isObject(result) ? result : thisBinding;
+        }
+        return func.apply(thisBinding, args);
+      }
+      setBindData(bound, bindData);
+      return bound;
+    }
+
+    /**
+     * The base implementation of `_.difference` that accepts a single array
+     * of values to exclude.
+     *
+     * @private
+     * @param {Array} array The array to process.
+     * @param {Array} [values] The array of values to exclude.
+     * @returns {Array} Returns a new array of filtered values.
+     */
+    function baseDifference(array, values) {
+      var index = -1,
+          indexOf = getIndexOf(),
+          length = array ? array.length : 0,
+          isLarge = length >= largeArraySize && indexOf === baseIndexOf,
+          result = [];
+
+      if (isLarge) {
+        var cache = createCache(values);
+        if (cache) {
+          indexOf = cacheIndexOf;
+          values = cache;
+        } else {
+          isLarge = false;
+        }
+      }
+      while (++index < length) {
+        var value = array[index];
+        if (indexOf(values, value) < 0) {
+          result.push(value);
+        }
+      }
+      if (isLarge) {
+        releaseObject(values);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.flatten` without support for callback
+     * shorthands or `thisArg` binding.
+     *
+     * @private
+     * @param {Array} array The array to flatten.
+     * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+     * @param {boolean} [isStrict=false] A flag to restrict flattening to arrays and `arguments` objects.
+     * @param {number} [fromIndex=0] The index to start from.
+     * @returns {Array} Returns a new flattened array.
+     */
+    function baseFlatten(array, isShallow, isStrict, fromIndex) {
+      var index = (fromIndex || 0) - 1,
+          length = array ? array.length : 0,
+          result = [];
+
+      while (++index < length) {
+        var value = array[index];
+
+        if (value && typeof value == 'object' && typeof value.length == 'number'
+            && (isArray(value) || isArguments(value))) {
+          // recursively flatten arrays (susceptible to call stack limits)
+          if (!isShallow) {
+            value = baseFlatten(value, isShallow, isStrict);
+          }
+          var valIndex = -1,
+              valLength = value.length,
+              resIndex = result.length;
+
+          result.length += valLength;
+          while (++valIndex < valLength) {
+            result[resIndex++] = value[valIndex];
+          }
+        } else if (!isStrict) {
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.isEqual`, without support for `thisArg` binding,
+     * that allows partial "_.where" style comparisons.
+     *
+     * @private
+     * @param {*} a The value to compare.
+     * @param {*} b The other value to compare.
+     * @param {Function} [callback] The function to customize comparing values.
+     * @param {Function} [isWhere=false] A flag to indicate performing partial comparisons.
+     * @param {Array} [stackA=[]] Tracks traversed `a` objects.
+     * @param {Array} [stackB=[]] Tracks traversed `b` objects.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     */
+    function baseIsEqual(a, b, callback, isWhere, stackA, stackB) {
+      // used to indicate that when comparing objects, `a` has at least the properties of `b`
+      if (callback) {
+        var result = callback(a, b);
+        if (typeof result != 'undefined') {
+          return !!result;
+        }
+      }
+      // exit early for identical values
+      if (a === b) {
+        // treat `+0` vs. `-0` as not equal
+        return a !== 0 || (1 / a == 1 / b);
+      }
+      var type = typeof a,
+          otherType = typeof b;
+
+      // exit early for unlike primitive values
+      if (a === a &&
+          !(a && objectTypes[type]) &&
+          !(b && objectTypes[otherType])) {
+        return false;
+      }
+      // exit early for `null` and `undefined` avoiding ES3's Function#call behavior
+      // http://es5.github.io/#x15.3.4.4
+      if (a == null || b == null) {
+        return a === b;
+      }
+      // compare [[Class]] names
+      var className = toString.call(a),
+          otherClass = toString.call(b);
+
+      if (className == argsClass) {
+        className = objectClass;
+      }
+      if (otherClass == argsClass) {
+        otherClass = objectClass;
+      }
+      if (className != otherClass) {
+        return false;
+      }
+      switch (className) {
+        case boolClass:
+        case dateClass:
+          // coerce dates and booleans to numbers, dates to milliseconds and booleans
+          // to `1` or `0` treating invalid dates coerced to `NaN` as not equal
+          return +a == +b;
+
+        case numberClass:
+          // treat `NaN` vs. `NaN` as equal
+          return (a != +a)
+            ? b != +b
+            // but treat `+0` vs. `-0` as not equal
+            : (a == 0 ? (1 / a == 1 / b) : a == +b);
+
+        case regexpClass:
+        case stringClass:
+          // coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
+          // treat string primitives and their corresponding object instances as equal
+          return a == String(b);
+      }
+      var isArr = className == arrayClass;
+      if (!isArr) {
+        // unwrap any `lodash` wrapped values
+        var aWrapped = hasOwnProperty.call(a, '__wrapped__'),
+            bWrapped = hasOwnProperty.call(b, '__wrapped__');
+
+        if (aWrapped || bWrapped) {
+          return baseIsEqual(aWrapped ? a.__wrapped__ : a, bWrapped ? b.__wrapped__ : b, callback, isWhere, stackA, stackB);
+        }
+        // exit for functions and DOM nodes
+        if (className != objectClass) {
+          return false;
+        }
+        // in older versions of Opera, `arguments` objects have `Array` constructors
+        var ctorA = a.constructor,
+            ctorB = b.constructor;
+
+        // non `Object` object instances with different constructors are not equal
+        if (ctorA != ctorB &&
+              !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
+              ('constructor' in a && 'constructor' in b)
+            ) {
+          return false;
+        }
+      }
+      // assume cyclic structures are equal
+      // the algorithm for detecting cyclic structures is adapted from ES 5.1
+      // section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
+      var initedStack = !stackA;
+      stackA || (stackA = getArray());
+      stackB || (stackB = getArray());
+
+      var length = stackA.length;
+      while (length--) {
+        if (stackA[length] == a) {
+          return stackB[length] == b;
+        }
+      }
+      var size = 0;
+      result = true;
+
+      // add `a` and `b` to the stack of traversed objects
+      stackA.push(a);
+      stackB.push(b);
+
+      // recursively compare objects and arrays (susceptible to call stack limits)
+      if (isArr) {
+        // compare lengths to determine if a deep comparison is necessary
+        length = a.length;
+        size = b.length;
+        result = size == length;
+
+        if (result || isWhere) {
+          // deep compare the contents, ignoring non-numeric properties
+          while (size--) {
+            var index = length,
+                value = b[size];
+
+            if (isWhere) {
+              while (index--) {
+                if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+                  break;
+                }
+              }
+            } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+              break;
+            }
+          }
+        }
+      }
+      else {
+        // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+        // which, in this case, is more costly
+        forIn(b, function(value, key, b) {
+          if (hasOwnProperty.call(b, key)) {
+            // count the number of properties.
+            size++;
+            // deep compare each property value.
+            return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
+          }
+        });
+
+        if (result && !isWhere) {
+          // ensure both objects have the same number of properties
+          forIn(a, function(value, key, a) {
+            if (hasOwnProperty.call(a, key)) {
+              // `size` will be `-1` if `a` has more properties than `b`
+              return (result = --size > -1);
+            }
+          });
+        }
+      }
+      stackA.pop();
+      stackB.pop();
+
+      if (initedStack) {
+        releaseArray(stackA);
+        releaseArray(stackB);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.merge` without argument juggling or support
+     * for `thisArg` binding.
+     *
+     * @private
+     * @param {Object} object The destination object.
+     * @param {Object} source The source object.
+     * @param {Function} [callback] The function to customize merging properties.
+     * @param {Array} [stackA=[]] Tracks traversed source objects.
+     * @param {Array} [stackB=[]] Associates values with source counterparts.
+     */
+    function baseMerge(object, source, callback, stackA, stackB) {
+      (isArray(source) ? forEach : forOwn)(source, function(source, key) {
+        var found,
+            isArr,
+            result = source,
+            value = object[key];
+
+        if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
+          // avoid merging previously merged cyclic sources
+          var stackLength = stackA.length;
+          while (stackLength--) {
+            if ((found = stackA[stackLength] == source)) {
+              value = stackB[stackLength];
+              break;
+            }
+          }
+          if (!found) {
+            var isShallow;
+            if (callback) {
+              result = callback(value, source);
+              if ((isShallow = typeof result != 'undefined')) {
+                value = result;
+              }
+            }
+            if (!isShallow) {
+              value = isArr
+                ? (isArray(value) ? value : [])
+                : (isPlainObject(value) ? value : {});
+            }
+            // add `source` and associated `value` to the stack of traversed objects
+            stackA.push(source);
+            stackB.push(value);
+
+            // recursively merge objects and arrays (susceptible to call stack limits)
+            if (!isShallow) {
+              baseMerge(value, source, callback, stackA, stackB);
+            }
+          }
+        }
+        else {
+          if (callback) {
+            result = callback(value, source);
+            if (typeof result == 'undefined') {
+              result = source;
+            }
+          }
+          if (typeof result != 'undefined') {
+            value = result;
+          }
+        }
+        object[key] = value;
+      });
+    }
+
+    /**
+     * The base implementation of `_.random` without argument juggling or support
+     * for returning floating-point numbers.
+     *
+     * @private
+     * @param {number} min The minimum possible value.
+     * @param {number} max The maximum possible value.
+     * @returns {number} Returns a random number.
+     */
+    function baseRandom(min, max) {
+      return min + floor(nativeRandom() * (max - min + 1));
+    }
+
+    /**
+     * The base implementation of `_.uniq` without support for callback shorthands
+     * or `thisArg` binding.
+     *
+     * @private
+     * @param {Array} array The array to process.
+     * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+     * @param {Function} [callback] The function called per iteration.
+     * @returns {Array} Returns a duplicate-value-free array.
+     */
+    function baseUniq(array, isSorted, callback) {
+      var index = -1,
+          indexOf = getIndexOf(),
+          length = array ? array.length : 0,
+          result = [];
+
+      var isLarge = !isSorted && length >= largeArraySize && indexOf === baseIndexOf,
+          seen = (callback || isLarge) ? getArray() : result;
+
+      if (isLarge) {
+        var cache = createCache(seen);
+        indexOf = cacheIndexOf;
+        seen = cache;
+      }
+      while (++index < length) {
+        var value = array[index],
+            computed = callback ? callback(value, index, array) : value;
+
+        if (isSorted
+              ? !index || seen[seen.length - 1] !== computed
+              : indexOf(seen, computed) < 0
+            ) {
+          if (callback || isLarge) {
+            seen.push(computed);
+          }
+          result.push(value);
+        }
+      }
+      if (isLarge) {
+        releaseArray(seen.array);
+        releaseObject(seen);
+      } else if (callback) {
+        releaseArray(seen);
+      }
+      return result;
+    }
+
+    /**
+     * Creates a function that aggregates a collection, creating an object composed
+     * of keys generated from the results of running each element of the collection
+     * through a callback. The given `setter` function sets the keys and values
+     * of the composed object.
+     *
+     * @private
+     * @param {Function} setter The setter function.
+     * @returns {Function} Returns the new aggregator function.
+     */
+    function createAggregator(setter) {
+      return function(collection, callback, thisArg) {
+        var result = {};
+        callback = lodash.createCallback(callback, thisArg, 3);
+
+        var index = -1,
+            length = collection ? collection.length : 0;
+
+        if (typeof length == 'number') {
+          while (++index < length) {
+            var value = collection[index];
+            setter(result, value, callback(value, index, collection), collection);
+          }
+        } else {
+          forOwn(collection, function(value, key, collection) {
+            setter(result, value, callback(value, key, collection), collection);
+          });
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Creates a function that, when called, either curries or invokes `func`
+     * with an optional `this` binding and partially applied arguments.
+     *
+     * @private
+     * @param {Function|string} func The function or method name to reference.
+     * @param {number} bitmask The bitmask of method flags to compose.
+     *  The bitmask may be composed of the following flags:
+     *  1 - `_.bind`
+     *  2 - `_.bindKey`
+     *  4 - `_.curry`
+     *  8 - `_.curry` (bound)
+     *  16 - `_.partial`
+     *  32 - `_.partialRight`
+     * @param {Array} [partialArgs] An array of arguments to prepend to those
+     *  provided to the new function.
+     * @param {Array} [partialRightArgs] An array of arguments to append to those
+     *  provided to the new function.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {number} [arity] The arity of `func`.
+     * @returns {Function} Returns the new function.
+     */
+    function createWrapper(func, bitmask, partialArgs, partialRightArgs, thisArg, arity) {
+      var isBind = bitmask & 1,
+          isBindKey = bitmask & 2,
+          isCurry = bitmask & 4,
+          isCurryBound = bitmask & 8,
+          isPartial = bitmask & 16,
+          isPartialRight = bitmask & 32;
+
+      if (!isBindKey && !isFunction(func)) {
+        throw new TypeError;
+      }
+      if (isPartial && !partialArgs.length) {
+        bitmask &= ~16;
+        isPartial = partialArgs = false;
+      }
+      if (isPartialRight && !partialRightArgs.length) {
+        bitmask &= ~32;
+        isPartialRight = partialRightArgs = false;
+      }
+      var bindData = func && func.__bindData__;
+      if (bindData && bindData !== true) {
+        // clone `bindData`
+        bindData = slice(bindData);
+        if (bindData[2]) {
+          bindData[2] = slice(bindData[2]);
+        }
+        if (bindData[3]) {
+          bindData[3] = slice(bindData[3]);
+        }
+        // set `thisBinding` is not previously bound
+        if (isBind && !(bindData[1] & 1)) {
+          bindData[4] = thisArg;
+        }
+        // set if previously bound but not currently (subsequent curried functions)
+        if (!isBind && bindData[1] & 1) {
+          bitmask |= 8;
+        }
+        // set curried arity if not yet set
+        if (isCurry && !(bindData[1] & 4)) {
+          bindData[5] = arity;
+        }
+        // append partial left arguments
+        if (isPartial) {
+          push.apply(bindData[2] || (bindData[2] = []), partialArgs);
+        }
+        // append partial right arguments
+        if (isPartialRight) {
+          unshift.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
+        }
+        // merge flags
+        bindData[1] |= bitmask;
+        return createWrapper.apply(null, bindData);
+      }
+      // fast path for `_.bind`
+      var creater = (bitmask == 1 || bitmask === 17) ? baseBind : baseCreateWrapper;
+      return creater([func, bitmask, partialArgs, partialRightArgs, thisArg, arity]);
+    }
+
+    /**
+     * Used by `escape` to convert characters to HTML entities.
+     *
+     * @private
+     * @param {string} match The matched character to escape.
+     * @returns {string} Returns the escaped character.
+     */
+    function escapeHtmlChar(match) {
+      return htmlEscapes[match];
+    }
+
+    /**
+     * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
+     * customized, this method returns the custom method, otherwise it returns
+     * the `baseIndexOf` function.
+     *
+     * @private
+     * @returns {Function} Returns the "indexOf" function.
+     */
+    function getIndexOf() {
+      var result = (result = lodash.indexOf) === indexOf ? baseIndexOf : result;
+      return result;
+    }
+
+    /**
+     * Checks if `value` is a native function.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
+     */
+    function isNative(value) {
+      return typeof value == 'function' && reNative.test(value);
+    }
+
+    /**
+     * Sets `this` binding data on a given function.
+     *
+     * @private
+     * @param {Function} func The function to set data on.
+     * @param {Array} value The data array to set.
+     */
+    var setBindData = !defineProperty ? noop : function(func, value) {
+      descriptor.value = value;
+      defineProperty(func, '__bindData__', descriptor);
+    };
+
+    /**
+     * A fallback implementation of `isPlainObject` which checks if a given value
+     * is an object created by the `Object` constructor, assuming objects created
+     * by the `Object` constructor have no inherited enumerable properties and that
+     * there are no `Object.prototype` extensions.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+     */
+    function shimIsPlainObject(value) {
+      var ctor,
+          result;
+
+      // avoid non Object objects, `arguments` objects, and DOM elements
+      if (!(value && toString.call(value) == objectClass) ||
+          (ctor = value.constructor, isFunction(ctor) && !(ctor instanceof ctor))) {
+        return false;
+      }
+      // In most environments an object's own properties are iterated before
+      // its inherited properties. If the last iterated property is an object's
+      // own property then there are no inherited enumerable properties.
+      forIn(value, function(value, key) {
+        result = key;
+      });
+      return typeof result == 'undefined' || hasOwnProperty.call(value, result);
+    }
+
+    /**
+     * Used by `unescape` to convert HTML entities to characters.
+     *
+     * @private
+     * @param {string} match The matched character to unescape.
+     * @returns {string} Returns the unescaped character.
+     */
+    function unescapeHtmlChar(match) {
+      return htmlUnescapes[match];
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Checks if `value` is an `arguments` object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is an `arguments` object, else `false`.
+     * @example
+     *
+     * (function() { return _.isArguments(arguments); })(1, 2, 3);
+     * // => true
+     *
+     * _.isArguments([1, 2, 3]);
+     * // => false
+     */
+    function isArguments(value) {
+      return value && typeof value == 'object' && typeof value.length == 'number' &&
+        toString.call(value) == argsClass || false;
+    }
+
+    /**
+     * Checks if `value` is an array.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is an array, else `false`.
+     * @example
+     *
+     * (function() { return _.isArray(arguments); })();
+     * // => false
+     *
+     * _.isArray([1, 2, 3]);
+     * // => true
+     */
+    var isArray = nativeIsArray || function(value) {
+      return value && typeof value == 'object' && typeof value.length == 'number' &&
+        toString.call(value) == arrayClass || false;
+    };
+
+    /**
+     * A fallback implementation of `Object.keys` which produces an array of the
+     * given object's own enumerable property names.
+     *
+     * @private
+     * @type Function
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property names.
+     */
+    var shimKeys = function(object) {
+      var index, iterable = object, result = [];
+      if (!iterable) return result;
+      if (!(objectTypes[typeof object])) return result;
+        for (index in iterable) {
+          if (hasOwnProperty.call(iterable, index)) {
+            result.push(index);
+          }
+        }
+      return result
+    };
+
+    /**
+     * Creates an array composed of the own enumerable property names of an object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property names.
+     * @example
+     *
+     * _.keys({ 'one': 1, 'two': 2, 'three': 3 });
+     * // => ['one', 'two', 'three'] (property order is not guaranteed across environments)
+     */
+    var keys = !nativeKeys ? shimKeys : function(object) {
+      if (!isObject(object)) {
+        return [];
+      }
+      return nativeKeys(object);
+    };
+
+    /**
+     * Used to convert characters to HTML entities:
+     *
+     * Though the `>` character is escaped for symmetry, characters like `>` and `/`
+     * don't require escaping in HTML and have no special meaning unless they're part
+     * of a tag or an unquoted attribute value.
+     * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
+     */
+    var htmlEscapes = {
+      '&': '&amp;',
+      '<': '&lt;',
+      '>': '&gt;',
+      '"': '&quot;',
+      "'": '&#39;'
+    };
+
+    /** Used to convert HTML entities to characters */
+    var htmlUnescapes = invert(htmlEscapes);
+
+    /** Used to match HTML entities and HTML characters */
+    var reEscapedHtml = RegExp('(' + keys(htmlUnescapes).join('|') + ')', 'g'),
+        reUnescapedHtml = RegExp('[' + keys(htmlEscapes).join('') + ']', 'g');
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Assigns own enumerable properties of source object(s) to the destination
+     * object. Subsequent sources will overwrite property assignments of previous
+     * sources. If a callback is provided it will be executed to produce the
+     * assigned values. The callback is bound to `thisArg` and invoked with two
+     * arguments; (objectValue, sourceValue).
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @alias extend
+     * @category Objects
+     * @param {Object} object The destination object.
+     * @param {...Object} [source] The source objects.
+     * @param {Function} [callback] The function to customize assigning values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the destination object.
+     * @example
+     *
+     * _.assign({ 'name': 'fred' }, { 'employer': 'slate' });
+     * // => { 'name': 'fred', 'employer': 'slate' }
+     *
+     * var defaults = _.partialRight(_.assign, function(a, b) {
+     *   return typeof a == 'undefined' ? b : a;
+     * });
+     *
+     * var object = { 'name': 'barney' };
+     * defaults(object, { 'name': 'fred', 'employer': 'slate' });
+     * // => { 'name': 'barney', 'employer': 'slate' }
+     */
+    var assign = function(object, source, guard) {
+      var index, iterable = object, result = iterable;
+      if (!iterable) return result;
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = typeof guard == 'number' ? 2 : args.length;
+      if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {
+        var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);
+      } else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {
+        callback = args[--argsLength];
+      }
+      while (++argsIndex < argsLength) {
+        iterable = args[argsIndex];
+        if (iterable && objectTypes[typeof iterable]) {
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] && keys(iterable),
+            length = ownProps ? ownProps.length : 0;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          result[index] = callback ? callback(result[index], iterable[index]) : iterable[index];
+        }
+        }
+      }
+      return result
+    };
+
+    /**
+     * Creates a clone of `value`. If `isDeep` is `true` nested objects will also
+     * be cloned, otherwise they will be assigned by reference. If a callback
+     * is provided it will be executed to produce the cloned values. If the
+     * callback returns `undefined` cloning will be handled by the method instead.
+     * The callback is bound to `thisArg` and invoked with one argument; (value).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to clone.
+     * @param {boolean} [isDeep=false] Specify a deep clone.
+     * @param {Function} [callback] The function to customize cloning values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the cloned value.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * var shallow = _.clone(characters);
+     * shallow[0] === characters[0];
+     * // => true
+     *
+     * var deep = _.clone(characters, true);
+     * deep[0] === characters[0];
+     * // => false
+     *
+     * _.mixin({
+     *   'clone': _.partialRight(_.clone, function(value) {
+     *     return _.isElement(value) ? value.cloneNode(false) : undefined;
+     *   })
+     * });
+     *
+     * var clone = _.clone(document.body);
+     * clone.childNodes.length;
+     * // => 0
+     */
+    function clone(value, isDeep, callback, thisArg) {
+      // allows working with "Collections" methods without using their `index`
+      // and `collection` arguments for `isDeep` and `callback`
+      if (typeof isDeep != 'boolean' && isDeep != null) {
+        thisArg = callback;
+        callback = isDeep;
+        isDeep = false;
+      }
+      return baseClone(value, isDeep, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+    }
+
+    /**
+     * Creates a deep clone of `value`. If a callback is provided it will be
+     * executed to produce the cloned values. If the callback returns `undefined`
+     * cloning will be handled by the method instead. The callback is bound to
+     * `thisArg` and invoked with one argument; (value).
+     *
+     * Note: This method is loosely based on the structured clone algorithm. Functions
+     * and DOM nodes are **not** cloned. The enumerable properties of `arguments` objects and
+     * objects created by constructors other than `Object` are cloned to plain `Object` objects.
+     * See http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to deep clone.
+     * @param {Function} [callback] The function to customize cloning values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the deep cloned value.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * var deep = _.cloneDeep(characters);
+     * deep[0] === characters[0];
+     * // => false
+     *
+     * var view = {
+     *   'label': 'docs',
+     *   'node': element
+     * };
+     *
+     * var clone = _.cloneDeep(view, function(value) {
+     *   return _.isElement(value) ? value.cloneNode(true) : undefined;
+     * });
+     *
+     * clone.node == view.node;
+     * // => false
+     */
+    function cloneDeep(value, callback, thisArg) {
+      return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+    }
+
+    /**
+     * Creates an object that inherits from the given `prototype` object. If a
+     * `properties` object is provided its own enumerable properties are assigned
+     * to the created object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} prototype The object to inherit from.
+     * @param {Object} [properties] The properties to assign to the object.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * function Circle() {
+     *   Shape.call(this);
+     * }
+     *
+     * Circle.prototype = _.create(Shape.prototype, { 'constructor': Circle });
+     *
+     * var circle = new Circle;
+     * circle instanceof Circle;
+     * // => true
+     *
+     * circle instanceof Shape;
+     * // => true
+     */
+    function create(prototype, properties) {
+      var result = baseCreate(prototype);
+      return properties ? assign(result, properties) : result;
+    }
+
+    /**
+     * Assigns own enumerable properties of source object(s) to the destination
+     * object for all destination properties that resolve to `undefined`. Once a
+     * property is set, additional defaults of the same property will be ignored.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {Object} object The destination object.
+     * @param {...Object} [source] The source objects.
+     * @param- {Object} [guard] Allows working with `_.reduce` without using its
+     *  `key` and `object` arguments as sources.
+     * @returns {Object} Returns the destination object.
+     * @example
+     *
+     * var object = { 'name': 'barney' };
+     * _.defaults(object, { 'name': 'fred', 'employer': 'slate' });
+     * // => { 'name': 'barney', 'employer': 'slate' }
+     */
+    var defaults = function(object, source, guard) {
+      var index, iterable = object, result = iterable;
+      if (!iterable) return result;
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = typeof guard == 'number' ? 2 : args.length;
+      while (++argsIndex < argsLength) {
+        iterable = args[argsIndex];
+        if (iterable && objectTypes[typeof iterable]) {
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] && keys(iterable),
+            length = ownProps ? ownProps.length : 0;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          if (typeof result[index] == 'undefined') result[index] = iterable[index];
+        }
+        }
+      }
+      return result
+    };
+
+    /**
+     * This method is like `_.findIndex` except that it returns the key of the
+     * first element that passes the callback check, instead of the element itself.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to search.
+     * @param {Function|Object|string} [callback=identity] The function called per
+     *  iteration. If a property name or object is provided it will be used to
+     *  create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {string|undefined} Returns the key of the found element, else `undefined`.
+     * @example
+     *
+     * var characters = {
+     *   'barney': {  'age': 36, 'blocked': false },
+     *   'fred': {    'age': 40, 'blocked': true },
+     *   'pebbles': { 'age': 1,  'blocked': false }
+     * };
+     *
+     * _.findKey(characters, function(chr) {
+     *   return chr.age < 40;
+     * });
+     * // => 'barney' (property order is not guaranteed across environments)
+     *
+     * // using "_.where" callback shorthand
+     * _.findKey(characters, { 'age': 1 });
+     * // => 'pebbles'
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findKey(characters, 'blocked');
+     * // => 'fred'
+     */
+    function findKey(object, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      forOwn(object, function(value, key, object) {
+        if (callback(value, key, object)) {
+          result = key;
+          return false;
+        }
+      });
+      return result;
+    }
+
+    /**
+     * This method is like `_.findKey` except that it iterates over elements
+     * of a `collection` in the opposite order.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to search.
+     * @param {Function|Object|string} [callback=identity] The function called per
+     *  iteration. If a property name or object is provided it will be used to
+     *  create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {string|undefined} Returns the key of the found element, else `undefined`.
+     * @example
+     *
+     * var characters = {
+     *   'barney': {  'age': 36, 'blocked': true },
+     *   'fred': {    'age': 40, 'blocked': false },
+     *   'pebbles': { 'age': 1,  'blocked': true }
+     * };
+     *
+     * _.findLastKey(characters, function(chr) {
+     *   return chr.age < 40;
+     * });
+     * // => returns `pebbles`, assuming `_.findKey` returns `barney`
+     *
+     * // using "_.where" callback shorthand
+     * _.findLastKey(characters, { 'age': 40 });
+     * // => 'fred'
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findLastKey(characters, 'blocked');
+     * // => 'pebbles'
+     */
+    function findLastKey(object, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      forOwnRight(object, function(value, key, object) {
+        if (callback(value, key, object)) {
+          result = key;
+          return false;
+        }
+      });
+      return result;
+    }
+
+    /**
+     * Iterates over own and inherited enumerable properties of an object,
+     * executing the callback for each property. The callback is bound to `thisArg`
+     * and invoked with three arguments; (value, key, object). Callbacks may exit
+     * iteration early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
+     * };
+     *
+     * _.forIn(new Shape, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
+     */
+    var forIn = function(collection, callback, thisArg) {
+      var index, iterable = collection, result = iterable;
+      if (!iterable) return result;
+      if (!objectTypes[typeof iterable]) return result;
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+        for (index in iterable) {
+          if (callback(iterable[index], index, collection) === false) return result;
+        }
+      return result
+    };
+
+    /**
+     * This method is like `_.forIn` except that it iterates over elements
+     * of a `collection` in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
+     * };
+     *
+     * _.forInRight(new Shape, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
+     */
+    function forInRight(object, callback, thisArg) {
+      var pairs = [];
+
+      forIn(object, function(value, key) {
+        pairs.push(key, value);
+      });
+
+      var length = pairs.length;
+      callback = baseCreateCallback(callback, thisArg, 3);
+      while (length--) {
+        if (callback(pairs[length--], pairs[length], object) === false) {
+          break;
+        }
+      }
+      return object;
+    }
+
+    /**
+     * Iterates over own enumerable properties of an object, executing the callback
+     * for each property. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, key, object). Callbacks may exit iteration early by
+     * explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+     *   console.log(key);
+     * });
+     * // => logs '0', '1', and 'length' (property order is not guaranteed across environments)
+     */
+    var forOwn = function(collection, callback, thisArg) {
+      var index, iterable = collection, result = iterable;
+      if (!iterable) return result;
+      if (!objectTypes[typeof iterable]) return result;
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] && keys(iterable),
+            length = ownProps ? ownProps.length : 0;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          if (callback(iterable[index], index, collection) === false) return result;
+        }
+      return result
+    };
+
+    /**
+     * This method is like `_.forOwn` except that it iterates over elements
+     * of a `collection` in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * _.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+     *   console.log(key);
+     * });
+     * // => logs 'length', '1', and '0' assuming `_.forOwn` logs '0', '1', and 'length'
+     */
+    function forOwnRight(object, callback, thisArg) {
+      var props = keys(object),
+          length = props.length;
+
+      callback = baseCreateCallback(callback, thisArg, 3);
+      while (length--) {
+        var key = props[length];
+        if (callback(object[key], key, object) === false) {
+          break;
+        }
+      }
+      return object;
+    }
+
+    /**
+     * Creates a sorted array of property names of all enumerable properties,
+     * own and inherited, of `object` that have function values.
+     *
+     * @static
+     * @memberOf _
+     * @alias methods
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property names that have function values.
+     * @example
+     *
+     * _.functions(_);
+     * // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...]
+     */
+    function functions(object) {
+      var result = [];
+      forIn(object, function(value, key) {
+        if (isFunction(value)) {
+          result.push(key);
+        }
+      });
+      return result.sort();
+    }
+
+    /**
+     * Checks if the specified property name exists as a direct property of `object`,
+     * instead of an inherited property.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @param {string} key The name of the property to check.
+     * @returns {boolean} Returns `true` if key is a direct property, else `false`.
+     * @example
+     *
+     * _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
+     * // => true
+     */
+    function has(object, key) {
+      return object ? hasOwnProperty.call(object, key) : false;
+    }
+
+    /**
+     * Creates an object composed of the inverted keys and values of the given object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to invert.
+     * @returns {Object} Returns the created inverted object.
+     * @example
+     *
+     * _.invert({ 'first': 'fred', 'second': 'barney' });
+     * // => { 'fred': 'first', 'barney': 'second' }
+     */
+    function invert(object) {
+      var index = -1,
+          props = keys(object),
+          length = props.length,
+          result = {};
+
+      while (++index < length) {
+        var key = props[index];
+        result[object[key]] = key;
+      }
+      return result;
+    }
+
+    /**
+     * Checks if `value` is a boolean value.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a boolean value, else `false`.
+     * @example
+     *
+     * _.isBoolean(null);
+     * // => false
+     */
+    function isBoolean(value) {
+      return value === true || value === false ||
+        value && typeof value == 'object' && toString.call(value) == boolClass || false;
+    }
+
+    /**
+     * Checks if `value` is a date.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a date, else `false`.
+     * @example
+     *
+     * _.isDate(new Date);
+     * // => true
+     */
+    function isDate(value) {
+      return value && typeof value == 'object' && toString.call(value) == dateClass || false;
+    }
+
+    /**
+     * Checks if `value` is a DOM element.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a DOM element, else `false`.
+     * @example
+     *
+     * _.isElement(document.body);
+     * // => true
+     */
+    function isElement(value) {
+      return value && value.nodeType === 1 || false;
+    }
+
+    /**
+     * Checks if `value` is empty. Arrays, strings, or `arguments` objects with a
+     * length of `0` and objects with no own enumerable properties are considered
+     * "empty".
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Array|Object|string} value The value to inspect.
+     * @returns {boolean} Returns `true` if the `value` is empty, else `false`.
+     * @example
+     *
+     * _.isEmpty([1, 2, 3]);
+     * // => false
+     *
+     * _.isEmpty({});
+     * // => true
+     *
+     * _.isEmpty('');
+     * // => true
+     */
+    function isEmpty(value) {
+      var result = true;
+      if (!value) {
+        return result;
+      }
+      var className = toString.call(value),
+          length = value.length;
+
+      if ((className == arrayClass || className == stringClass || className == argsClass ) ||
+          (className == objectClass && typeof length == 'number' && isFunction(value.splice))) {
+        return !length;
+      }
+      forOwn(value, function() {
+        return (result = false);
+      });
+      return result;
+    }
+
+    /**
+     * Performs a deep comparison between two values to determine if they are
+     * equivalent to each other. If a callback is provided it will be executed
+     * to compare values. If the callback returns `undefined` comparisons will
+     * be handled by the method instead. The callback is bound to `thisArg` and
+     * invoked with two arguments; (a, b).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} a The value to compare.
+     * @param {*} b The other value to compare.
+     * @param {Function} [callback] The function to customize comparing values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * var copy = { 'name': 'fred' };
+     *
+     * object == copy;
+     * // => false
+     *
+     * _.isEqual(object, copy);
+     * // => true
+     *
+     * var words = ['hello', 'goodbye'];
+     * var otherWords = ['hi', 'goodbye'];
+     *
+     * _.isEqual(words, otherWords, function(a, b) {
+     *   var reGreet = /^(?:hello|hi)$/i,
+     *       aGreet = _.isString(a) && reGreet.test(a),
+     *       bGreet = _.isString(b) && reGreet.test(b);
+     *
+     *   return (aGreet || bGreet) ? (aGreet == bGreet) : undefined;
+     * });
+     * // => true
+     */
+    function isEqual(a, b, callback, thisArg) {
+      return baseIsEqual(a, b, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 2));
+    }
+
+    /**
+     * Checks if `value` is, or can be coerced to, a finite number.
+     *
+     * Note: This is not the same as native `isFinite` which will return true for
+     * booleans and empty strings. See http://es5.github.io/#x15.1.2.5.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is finite, else `false`.
+     * @example
+     *
+     * _.isFinite(-101);
+     * // => true
+     *
+     * _.isFinite('10');
+     * // => true
+     *
+     * _.isFinite(true);
+     * // => false
+     *
+     * _.isFinite('');
+     * // => false
+     *
+     * _.isFinite(Infinity);
+     * // => false
+     */
+    function isFinite(value) {
+      return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value));
+    }
+
+    /**
+     * Checks if `value` is a function.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a function, else `false`.
+     * @example
+     *
+     * _.isFunction(_);
+     * // => true
+     */
+    function isFunction(value) {
+      return typeof value == 'function';
+    }
+
+    /**
+     * Checks if `value` is the language type of Object.
+     * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is an object, else `false`.
+     * @example
+     *
+     * _.isObject({});
+     * // => true
+     *
+     * _.isObject([1, 2, 3]);
+     * // => true
+     *
+     * _.isObject(1);
+     * // => false
+     */
+    function isObject(value) {
+      // check if the value is the ECMAScript language type of Object
+      // http://es5.github.io/#x8
+      // and avoid a V8 bug
+      // http://code.google.com/p/v8/issues/detail?id=2291
+      return !!(value && objectTypes[typeof value]);
+    }
+
+    /**
+     * Checks if `value` is `NaN`.
+     *
+     * Note: This is not the same as native `isNaN` which will return `true` for
+     * `undefined` and other non-numeric values. See http://es5.github.io/#x15.1.2.4.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is `NaN`, else `false`.
+     * @example
+     *
+     * _.isNaN(NaN);
+     * // => true
+     *
+     * _.isNaN(new Number(NaN));
+     * // => true
+     *
+     * isNaN(undefined);
+     * // => true
+     *
+     * _.isNaN(undefined);
+     * // => false
+     */
+    function isNaN(value) {
+      // `NaN` as a primitive is the only value that is not equal to itself
+      // (perform the [[Class]] check first to avoid errors with some host objects in IE)
+      return isNumber(value) && value != +value;
+    }
+
+    /**
+     * Checks if `value` is `null`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is `null`, else `false`.
+     * @example
+     *
+     * _.isNull(null);
+     * // => true
+     *
+     * _.isNull(undefined);
+     * // => false
+     */
+    function isNull(value) {
+      return value === null;
+    }
+
+    /**
+     * Checks if `value` is a number.
+     *
+     * Note: `NaN` is considered a number. See http://es5.github.io/#x8.5.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a number, else `false`.
+     * @example
+     *
+     * _.isNumber(8.4 * 5);
+     * // => true
+     */
+    function isNumber(value) {
+      return typeof value == 'number' ||
+        value && typeof value == 'object' && toString.call(value) == numberClass || false;
+    }
+
+    /**
+     * Checks if `value` is an object created by the `Object` constructor.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * _.isPlainObject(new Shape);
+     * // => false
+     *
+     * _.isPlainObject([1, 2, 3]);
+     * // => false
+     *
+     * _.isPlainObject({ 'x': 0, 'y': 0 });
+     * // => true
+     */
+    var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
+      if (!(value && toString.call(value) == objectClass)) {
+        return false;
+      }
+      var valueOf = value.valueOf,
+          objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
+
+      return objProto
+        ? (value == objProto || getPrototypeOf(value) == objProto)
+        : shimIsPlainObject(value);
+    };
+
+    /**
+     * Checks if `value` is a regular expression.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a regular expression, else `false`.
+     * @example
+     *
+     * _.isRegExp(/fred/);
+     * // => true
+     */
+    function isRegExp(value) {
+      return value && typeof value == 'object' && toString.call(value) == regexpClass || false;
+    }
+
+    /**
+     * Checks if `value` is a string.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a string, else `false`.
+     * @example
+     *
+     * _.isString('fred');
+     * // => true
+     */
+    function isString(value) {
+      return typeof value == 'string' ||
+        value && typeof value == 'object' && toString.call(value) == stringClass || false;
+    }
+
+    /**
+     * Checks if `value` is `undefined`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is `undefined`, else `false`.
+     * @example
+     *
+     * _.isUndefined(void 0);
+     * // => true
+     */
+    function isUndefined(value) {
+      return typeof value == 'undefined';
+    }
+
+    /**
+     * Creates an object with the same keys as `object` and values generated by
+     * running each own enumerable property of `object` through the callback.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, key, object).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new object with values of the results of each `callback` execution.
+     * @example
+     *
+     * _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(num) { return num * 3; });
+     * // => { 'a': 3, 'b': 6, 'c': 9 }
+     *
+     * var characters = {
+     *   'fred': { 'name': 'fred', 'age': 40 },
+     *   'pebbles': { 'name': 'pebbles', 'age': 1 }
+     * };
+     *
+     * // using "_.pluck" callback shorthand
+     * _.mapValues(characters, 'age');
+     * // => { 'fred': 40, 'pebbles': 1 }
+     */
+    function mapValues(object, callback, thisArg) {
+      var result = {};
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      forOwn(object, function(value, key, object) {
+        result[key] = callback(value, key, object);
+      });
+      return result;
+    }
+
+    /**
+     * Recursively merges own enumerable properties of the source object(s), that
+     * don't resolve to `undefined` into the destination object. Subsequent sources
+     * will overwrite property assignments of previous sources. If a callback is
+     * provided it will be executed to produce the merged values of the destination
+     * and source properties. If the callback returns `undefined` merging will
+     * be handled by the method instead. The callback is bound to `thisArg` and
+     * invoked with two arguments; (objectValue, sourceValue).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The destination object.
+     * @param {...Object} [source] The source objects.
+     * @param {Function} [callback] The function to customize merging properties.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the destination object.
+     * @example
+     *
+     * var names = {
+     *   'characters': [
+     *     { 'name': 'barney' },
+     *     { 'name': 'fred' }
+     *   ]
+     * };
+     *
+     * var ages = {
+     *   'characters': [
+     *     { 'age': 36 },
+     *     { 'age': 40 }
+     *   ]
+     * };
+     *
+     * _.merge(names, ages);
+     * // => { 'characters': [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }] }
+     *
+     * var food = {
+     *   'fruits': ['apple'],
+     *   'vegetables': ['beet']
+     * };
+     *
+     * var otherFood = {
+     *   'fruits': ['banana'],
+     *   'vegetables': ['carrot']
+     * };
+     *
+     * _.merge(food, otherFood, function(a, b) {
+     *   return _.isArray(a) ? a.concat(b) : undefined;
+     * });
+     * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot] }
+     */
+    function merge(object) {
+      var args = arguments,
+          length = 2;
+
+      if (!isObject(object)) {
+        return object;
+      }
+      // allows working with `_.reduce` and `_.reduceRight` without using
+      // their `index` and `collection` arguments
+      if (typeof args[2] != 'number') {
+        length = args.length;
+      }
+      if (length > 3 && typeof args[length - 2] == 'function') {
+        var callback = baseCreateCallback(args[--length - 1], args[length--], 2);
+      } else if (length > 2 && typeof args[length - 1] == 'function') {
+        callback = args[--length];
+      }
+      var sources = slice(arguments, 1, length),
+          index = -1,
+          stackA = getArray(),
+          stackB = getArray();
+
+      while (++index < length) {
+        baseMerge(object, sources[index], callback, stackA, stackB);
+      }
+      releaseArray(stackA);
+      releaseArray(stackB);
+      return object;
+    }
+
+    /**
+     * Creates a shallow clone of `object` excluding the specified properties.
+     * Property names may be specified as individual arguments or as arrays of
+     * property names. If a callback is provided it will be executed for each
+     * property of `object` omitting the properties the callback returns truey
+     * for. The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, key, object).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The source object.
+     * @param {Function|...string|string[]} [callback] The properties to omit or the
+     *  function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns an object without the omitted properties.
+     * @example
+     *
+     * _.omit({ 'name': 'fred', 'age': 40 }, 'age');
+     * // => { 'name': 'fred' }
+     *
+     * _.omit({ 'name': 'fred', 'age': 40 }, function(value) {
+     *   return typeof value == 'number';
+     * });
+     * // => { 'name': 'fred' }
+     */
+    function omit(object, callback, thisArg) {
+      var result = {};
+      if (typeof callback != 'function') {
+        var props = [];
+        forIn(object, function(value, key) {
+          props.push(key);
+        });
+        props = baseDifference(props, baseFlatten(arguments, true, false, 1));
+
+        var index = -1,
+            length = props.length;
+
+        while (++index < length) {
+          var key = props[index];
+          result[key] = object[key];
+        }
+      } else {
+        callback = lodash.createCallback(callback, thisArg, 3);
+        forIn(object, function(value, key, object) {
+          if (!callback(value, key, object)) {
+            result[key] = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Creates a two dimensional array of an object's key-value pairs,
+     * i.e. `[[key1, value1], [key2, value2]]`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns new array of key-value pairs.
+     * @example
+     *
+     * _.pairs({ 'barney': 36, 'fred': 40 });
+     * // => [['barney', 36], ['fred', 40]] (property order is not guaranteed across environments)
+     */
+    function pairs(object) {
+      var index = -1,
+          props = keys(object),
+          length = props.length,
+          result = Array(length);
+
+      while (++index < length) {
+        var key = props[index];
+        result[index] = [key, object[key]];
+      }
+      return result;
+    }
+
+    /**
+     * Creates a shallow clone of `object` composed of the specified properties.
+     * Property names may be specified as individual arguments or as arrays of
+     * property names. If a callback is provided it will be executed for each
+     * property of `object` picking the properties the callback returns truey
+     * for. The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, key, object).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The source object.
+     * @param {Function|...string|string[]} [callback] The function called per
+     *  iteration or property names to pick, specified as individual property
+     *  names or arrays of property names.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns an object composed of the picked properties.
+     * @example
+     *
+     * _.pick({ 'name': 'fred', '_userid': 'fred1' }, 'name');
+     * // => { 'name': 'fred' }
+     *
+     * _.pick({ 'name': 'fred', '_userid': 'fred1' }, function(value, key) {
+     *   return key.charAt(0) != '_';
+     * });
+     * // => { 'name': 'fred' }
+     */
+    function pick(object, callback, thisArg) {
+      var result = {};
+      if (typeof callback != 'function') {
+        var index = -1,
+            props = baseFlatten(arguments, true, false, 1),
+            length = isObject(object) ? props.length : 0;
+
+        while (++index < length) {
+          var key = props[index];
+          if (key in object) {
+            result[key] = object[key];
+          }
+        }
+      } else {
+        callback = lodash.createCallback(callback, thisArg, 3);
+        forIn(object, function(value, key, object) {
+          if (callback(value, key, object)) {
+            result[key] = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * An alternative to `_.reduce` this method transforms `object` to a new
+     * `accumulator` object which is the result of running each of its own
+     * enumerable properties through a callback, with each callback execution
+     * potentially mutating the `accumulator` object. The callback is bound to
+     * `thisArg` and invoked with four arguments; (accumulator, value, key, object).
+     * Callbacks may exit iteration early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Array|Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [accumulator] The custom accumulator value.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * var squares = _.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function(result, num) {
+     *   num *= num;
+     *   if (num % 2) {
+     *     return result.push(num) < 3;
+     *   }
+     * });
+     * // => [1, 9, 25]
+     *
+     * var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+     *   result[key] = num * 3;
+     * });
+     * // => { 'a': 3, 'b': 6, 'c': 9 }
+     */
+    function transform(object, callback, accumulator, thisArg) {
+      var isArr = isArray(object);
+      if (accumulator == null) {
+        if (isArr) {
+          accumulator = [];
+        } else {
+          var ctor = object && object.constructor,
+              proto = ctor && ctor.prototype;
+
+          accumulator = baseCreate(proto);
+        }
+      }
+      if (callback) {
+        callback = lodash.createCallback(callback, thisArg, 4);
+        (isArr ? forEach : forOwn)(object, function(value, index, object) {
+          return callback(accumulator, value, index, object);
+        });
+      }
+      return accumulator;
+    }
+
+    /**
+     * Creates an array composed of the own enumerable property values of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property values.
+     * @example
+     *
+     * _.values({ 'one': 1, 'two': 2, 'three': 3 });
+     * // => [1, 2, 3] (property order is not guaranteed across environments)
+     */
+    function values(object) {
+      var index = -1,
+          props = keys(object),
+          length = props.length,
+          result = Array(length);
+
+      while (++index < length) {
+        result[index] = object[props[index]];
+      }
+      return result;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates an array of elements from the specified indexes, or keys, of the
+     * `collection`. Indexes may be specified as individual arguments or as arrays
+     * of indexes.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {...(number|number[]|string|string[])} [index] The indexes of `collection`
+     *   to retrieve, specified as individual indexes or arrays of indexes.
+     * @returns {Array} Returns a new array of elements corresponding to the
+     *  provided indexes.
+     * @example
+     *
+     * _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
+     * // => ['a', 'c', 'e']
+     *
+     * _.at(['fred', 'barney', 'pebbles'], 0, 2);
+     * // => ['fred', 'pebbles']
+     */
+    function at(collection) {
+      var args = arguments,
+          index = -1,
+          props = baseFlatten(args, true, false, 1),
+          length = (args[2] && args[2][args[1]] === collection) ? 1 : props.length,
+          result = Array(length);
+
+      while(++index < length) {
+        result[index] = collection[props[index]];
+      }
+      return result;
+    }
+
+    /**
+     * Checks if a given value is present in a collection using strict equality
+     * for comparisons, i.e. `===`. If `fromIndex` is negative, it is used as the
+     * offset from the end of the collection.
+     *
+     * @static
+     * @memberOf _
+     * @alias include
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {*} target The value to check for.
+     * @param {number} [fromIndex=0] The index to search from.
+     * @returns {boolean} Returns `true` if the `target` element is found, else `false`.
+     * @example
+     *
+     * _.contains([1, 2, 3], 1);
+     * // => true
+     *
+     * _.contains([1, 2, 3], 1, 2);
+     * // => false
+     *
+     * _.contains({ 'name': 'fred', 'age': 40 }, 'fred');
+     * // => true
+     *
+     * _.contains('pebbles', 'eb');
+     * // => true
+     */
+    function contains(collection, target, fromIndex) {
+      var index = -1,
+          indexOf = getIndexOf(),
+          length = collection ? collection.length : 0,
+          result = false;
+
+      fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0;
+      if (isArray(collection)) {
+        result = indexOf(collection, target, fromIndex) > -1;
+      } else if (typeof length == 'number') {
+        result = (isString(collection) ? collection.indexOf(target, fromIndex) : indexOf(collection, target, fromIndex)) > -1;
+      } else {
+        forOwn(collection, function(value) {
+          if (++index >= fromIndex) {
+            return !(result = value === target);
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of `collection` through the callback. The corresponding value
+     * of each key is the number of times the key was returned by the callback.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); });
+     * // => { '4': 1, '6': 2 }
+     *
+     * _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+     * // => { '4': 1, '6': 2 }
+     *
+     * _.countBy(['one', 'two', 'three'], 'length');
+     * // => { '3': 2, '5': 1 }
+     */
+    var countBy = createAggregator(function(result, value, key) {
+      (hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1);
+    });
+
+    /**
+     * Checks if the given callback returns truey value for **all** elements of
+     * a collection. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias all
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {boolean} Returns `true` if all elements passed the callback check,
+     *  else `false`.
+     * @example
+     *
+     * _.every([true, 1, null, 'yes']);
+     * // => false
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.every(characters, 'age');
+     * // => true
+     *
+     * // using "_.where" callback shorthand
+     * _.every(characters, { 'age': 36 });
+     * // => false
+     */
+    function every(collection, callback, thisArg) {
+      var result = true;
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          if (!(result = !!callback(collection[index], index, collection))) {
+            break;
+          }
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          return (result = !!callback(value, index, collection));
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Iterates over elements of a collection, returning an array of all elements
+     * the callback returns truey for. The callback is bound to `thisArg` and
+     * invoked with three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias select
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of elements that passed the callback check.
+     * @example
+     *
+     * var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+     * // => [2, 4, 6]
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'blocked': false },
+     *   { 'name': 'fred',   'age': 40, 'blocked': true }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.filter(characters, 'blocked');
+     * // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+     *
+     * // using "_.where" callback shorthand
+     * _.filter(characters, { 'age': 36 });
+     * // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+     */
+    function filter(collection, callback, thisArg) {
+      var result = [];
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          var value = collection[index];
+          if (callback(value, index, collection)) {
+            result.push(value);
+          }
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          if (callback(value, index, collection)) {
+            result.push(value);
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Iterates over elements of a collection, returning the first element that
+     * the callback returns truey for. The callback is bound to `thisArg` and
+     * invoked with three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias detect, findWhere
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the found element, else `undefined`.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36, 'blocked': false },
+     *   { 'name': 'fred',    'age': 40, 'blocked': true },
+     *   { 'name': 'pebbles', 'age': 1,  'blocked': false }
+     * ];
+     *
+     * _.find(characters, function(chr) {
+     *   return chr.age < 40;
+     * });
+     * // => { 'name': 'barney', 'age': 36, 'blocked': false }
+     *
+     * // using "_.where" callback shorthand
+     * _.find(characters, { 'age': 1 });
+     * // =>  { 'name': 'pebbles', 'age': 1, 'blocked': false }
+     *
+     * // using "_.pluck" callback shorthand
+     * _.find(characters, 'blocked');
+     * // => { 'name': 'fred', 'age': 40, 'blocked': true }
+     */
+    function find(collection, callback, thisArg) {
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          var value = collection[index];
+          if (callback(value, index, collection)) {
+            return value;
+          }
+        }
+      } else {
+        var result;
+        forOwn(collection, function(value, index, collection) {
+          if (callback(value, index, collection)) {
+            result = value;
+            return false;
+          }
+        });
+        return result;
+      }
+    }
+
+    /**
+     * This method is like `_.find` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the found element, else `undefined`.
+     * @example
+     *
+     * _.findLast([1, 2, 3, 4], function(num) {
+     *   return num % 2 == 1;
+     * });
+     * // => 3
+     */
+    function findLast(collection, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      forEachRight(collection, function(value, index, collection) {
+        if (callback(value, index, collection)) {
+          result = value;
+          return false;
+        }
+      });
+      return result;
+    }
+
+    /**
+     * Iterates over elements of a collection, executing the callback for each
+     * element. The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection). Callbacks may exit iteration early by
+     * explicitly returning `false`.
+     *
+     * Note: As with other "Collections" methods, objects with a `length` property
+     * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
+     * may be used for object iteration.
+     *
+     * @static
+     * @memberOf _
+     * @alias each
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array|Object|string} Returns `collection`.
+     * @example
+     *
+     * _([1, 2, 3]).forEach(function(num) { console.log(num); }).join(',');
+     * // => logs each number and returns '1,2,3'
+     *
+     * _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { console.log(num); });
+     * // => logs each number and returns the object (property order is not guaranteed across environments)
+     */
+    function forEach(collection, callback, thisArg) {
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+      if (typeof length == 'number') {
+        while (++index < length) {
+          if (callback(collection[index], index, collection) === false) {
+            break;
+          }
+        }
+      } else {
+        forOwn(collection, callback);
+      }
+      return collection;
+    }
+
+    /**
+     * This method is like `_.forEach` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @alias eachRight
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array|Object|string} Returns `collection`.
+     * @example
+     *
+     * _([1, 2, 3]).forEachRight(function(num) { console.log(num); }).join(',');
+     * // => logs each number from right to left and returns '3,2,1'
+     */
+    function forEachRight(collection, callback, thisArg) {
+      var length = collection ? collection.length : 0;
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+      if (typeof length == 'number') {
+        while (length--) {
+          if (callback(collection[length], length, collection) === false) {
+            break;
+          }
+        }
+      } else {
+        var props = keys(collection);
+        length = props.length;
+        forOwn(collection, function(value, key, collection) {
+          key = props ? props[--length] : --length;
+          return callback(collection[key], key, collection);
+        });
+      }
+      return collection;
+    }
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of a collection through the callback. The corresponding value
+     * of each key is an array of the elements responsible for generating the key.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); });
+     * // => { '4': [4.2], '6': [6.1, 6.4] }
+     *
+     * _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+     * // => { '4': [4.2], '6': [6.1, 6.4] }
+     *
+     * // using "_.pluck" callback shorthand
+     * _.groupBy(['one', 'two', 'three'], 'length');
+     * // => { '3': ['one', 'two'], '5': ['three'] }
+     */
+    var groupBy = createAggregator(function(result, value, key) {
+      (hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value);
+    });
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of the collection through the given callback. The corresponding
+     * value of each key is the last element responsible for generating the key.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * var keys = [
+     *   { 'dir': 'left', 'code': 97 },
+     *   { 'dir': 'right', 'code': 100 }
+     * ];
+     *
+     * _.indexBy(keys, 'dir');
+     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
+     *
+     * _.indexBy(keys, function(key) { return String.fromCharCode(key.code); });
+     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+     *
+     * _.indexBy(characters, function(key) { this.fromCharCode(key.code); }, String);
+     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+     */
+    var indexBy = createAggregator(function(result, value, key) {
+      result[key] = value;
+    });
+
+    /**
+     * Invokes the method named by `methodName` on each element in the `collection`
+     * returning an array of the results of each invoked method. Additional arguments
+     * will be provided to each invoked method. If `methodName` is a function it
+     * will be invoked for, and `this` bound to, each element in the `collection`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|string} methodName The name of the method to invoke or
+     *  the function invoked per iteration.
+     * @param {...*} [arg] Arguments to invoke the method with.
+     * @returns {Array} Returns a new array of the results of each invoked method.
+     * @example
+     *
+     * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
+     * // => [[1, 5, 7], [1, 2, 3]]
+     *
+     * _.invoke([123, 456], String.prototype.split, '');
+     * // => [['1', '2', '3'], ['4', '5', '6']]
+     */
+    function invoke(collection, methodName) {
+      var args = slice(arguments, 2),
+          index = -1,
+          isFunc = typeof methodName == 'function',
+          length = collection ? collection.length : 0,
+          result = Array(typeof length == 'number' ? length : 0);
+
+      forEach(collection, function(value) {
+        result[++index] = (isFunc ? methodName : value[methodName]).apply(value, args);
+      });
+      return result;
+    }
+
+    /**
+     * Creates an array of values by running each element in the collection
+     * through the callback. The callback is bound to `thisArg` and invoked with
+     * three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias collect
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of the results of each `callback` execution.
+     * @example
+     *
+     * _.map([1, 2, 3], function(num) { return num * 3; });
+     * // => [3, 6, 9]
+     *
+     * _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
+     * // => [3, 6, 9] (property order is not guaranteed across environments)
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.map(characters, 'name');
+     * // => ['barney', 'fred']
+     */
+    function map(collection, callback, thisArg) {
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      callback = lodash.createCallback(callback, thisArg, 3);
+      if (typeof length == 'number') {
+        var result = Array(length);
+        while (++index < length) {
+          result[index] = callback(collection[index], index, collection);
+        }
+      } else {
+        result = [];
+        forOwn(collection, function(value, key, collection) {
+          result[++index] = callback(value, key, collection);
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Retrieves the maximum value of a collection. If the collection is empty or
+     * falsey `-Infinity` is returned. If a callback is provided it will be executed
+     * for each value in the collection to generate the criterion by which the value
+     * is ranked. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the maximum value.
+     * @example
+     *
+     * _.max([4, 2, 8, 6]);
+     * // => 8
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * _.max(characters, function(chr) { return chr.age; });
+     * // => { 'name': 'fred', 'age': 40 };
+     *
+     * // using "_.pluck" callback shorthand
+     * _.max(characters, 'age');
+     * // => { 'name': 'fred', 'age': 40 };
+     */
+    function max(collection, callback, thisArg) {
+      var computed = -Infinity,
+          result = computed;
+
+      // allows working with functions like `_.map` without using
+      // their `index` argument as a callback
+      if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+        callback = null;
+      }
+      if (callback == null && isArray(collection)) {
+        var index = -1,
+            length = collection.length;
+
+        while (++index < length) {
+          var value = collection[index];
+          if (value > result) {
+            result = value;
+          }
+        }
+      } else {
+        callback = (callback == null && isString(collection))
+          ? charAtCallback
+          : lodash.createCallback(callback, thisArg, 3);
+
+        forEach(collection, function(value, index, collection) {
+          var current = callback(value, index, collection);
+          if (current > computed) {
+            computed = current;
+            result = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Retrieves the minimum value of a collection. If the collection is empty or
+     * falsey `Infinity` is returned. If a callback is provided it will be executed
+     * for each value in the collection to generate the criterion by which the value
+     * is ranked. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the minimum value.
+     * @example
+     *
+     * _.min([4, 2, 8, 6]);
+     * // => 2
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * _.min(characters, function(chr) { return chr.age; });
+     * // => { 'name': 'barney', 'age': 36 };
+     *
+     * // using "_.pluck" callback shorthand
+     * _.min(characters, 'age');
+     * // => { 'name': 'barney', 'age': 36 };
+     */
+    function min(collection, callback, thisArg) {
+      var computed = Infinity,
+          result = computed;
+
+      // allows working with functions like `_.map` without using
+      // their `index` argument as a callback
+      if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+        callback = null;
+      }
+      if (callback == null && isArray(collection)) {
+        var index = -1,
+            length = collection.length;
+
+        while (++index < length) {
+          var value = collection[index];
+          if (value < result) {
+            result = value;
+          }
+        }
+      } else {
+        callback = (callback == null && isString(collection))
+          ? charAtCallback
+          : lodash.createCallback(callback, thisArg, 3);
+
+        forEach(collection, function(value, index, collection) {
+          var current = callback(value, index, collection);
+          if (current < computed) {
+            computed = current;
+            result = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Retrieves the value of a specified property from all elements in the collection.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {string} property The name of the property to pluck.
+     * @returns {Array} Returns a new array of property values.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * _.pluck(characters, 'name');
+     * // => ['barney', 'fred']
+     */
+    var pluck = map;
+
+    /**
+     * Reduces a collection to a value which is the accumulated result of running
+     * each element in the collection through the callback, where each successive
+     * callback execution consumes the return value of the previous execution. If
+     * `accumulator` is not provided the first element of the collection will be
+     * used as the initial `accumulator` value. The callback is bound to `thisArg`
+     * and invoked with four arguments; (accumulator, value, index|key, collection).
+     *
+     * @static
+     * @memberOf _
+     * @alias foldl, inject
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [accumulator] Initial value of the accumulator.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * var sum = _.reduce([1, 2, 3], function(sum, num) {
+     *   return sum + num;
+     * });
+     * // => 6
+     *
+     * var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+     *   result[key] = num * 3;
+     *   return result;
+     * }, {});
+     * // => { 'a': 3, 'b': 6, 'c': 9 }
+     */
+    function reduce(collection, callback, accumulator, thisArg) {
+      if (!collection) return accumulator;
+      var noaccum = arguments.length < 3;
+      callback = lodash.createCallback(callback, thisArg, 4);
+
+      var index = -1,
+          length = collection.length;
+
+      if (typeof length == 'number') {
+        if (noaccum) {
+          accumulator = collection[++index];
+        }
+        while (++index < length) {
+          accumulator = callback(accumulator, collection[index], index, collection);
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          accumulator = noaccum
+            ? (noaccum = false, value)
+            : callback(accumulator, value, index, collection)
+        });
+      }
+      return accumulator;
+    }
+
+    /**
+     * This method is like `_.reduce` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @alias foldr
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [accumulator] Initial value of the accumulator.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * var list = [[0, 1], [2, 3], [4, 5]];
+     * var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
+     * // => [4, 5, 2, 3, 0, 1]
+     */
+    function reduceRight(collection, callback, accumulator, thisArg) {
+      var noaccum = arguments.length < 3;
+      callback = lodash.createCallback(callback, thisArg, 4);
+      forEachRight(collection, function(value, index, collection) {
+        accumulator = noaccum
+          ? (noaccum = false, value)
+          : callback(accumulator, value, index, collection);
+      });
+      return accumulator;
+    }
+
+    /**
+     * The opposite of `_.filter` this method returns the elements of a
+     * collection that the callback does **not** return truey for.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of elements that failed the callback check.
+     * @example
+     *
+     * var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+     * // => [1, 3, 5]
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'blocked': false },
+     *   { 'name': 'fred',   'age': 40, 'blocked': true }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.reject(characters, 'blocked');
+     * // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+     *
+     * // using "_.where" callback shorthand
+     * _.reject(characters, { 'age': 36 });
+     * // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+     */
+    function reject(collection, callback, thisArg) {
+      callback = lodash.createCallback(callback, thisArg, 3);
+      return filter(collection, function(value, index, collection) {
+        return !callback(value, index, collection);
+      });
+    }
+
+    /**
+     * Retrieves a random element or `n` random elements from a collection.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to sample.
+     * @param {number} [n] The number of elements to sample.
+     * @param- {Object} [guard] Allows working with functions like `_.map`
+     *  without using their `index` arguments as `n`.
+     * @returns {Array} Returns the random sample(s) of `collection`.
+     * @example
+     *
+     * _.sample([1, 2, 3, 4]);
+     * // => 2
+     *
+     * _.sample([1, 2, 3, 4], 2);
+     * // => [3, 1]
+     */
+    function sample(collection, n, guard) {
+      if (collection && typeof collection.length != 'number') {
+        collection = values(collection);
+      }
+      if (n == null || guard) {
+        return collection ? collection[baseRandom(0, collection.length - 1)] : undefined;
+      }
+      var result = shuffle(collection);
+      result.length = nativeMin(nativeMax(0, n), result.length);
+      return result;
+    }
+
+    /**
+     * Creates an array of shuffled values, using a version of the Fisher-Yates
+     * shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to shuffle.
+     * @returns {Array} Returns a new shuffled collection.
+     * @example
+     *
+     * _.shuffle([1, 2, 3, 4, 5, 6]);
+     * // => [4, 1, 6, 3, 5, 2]
+     */
+    function shuffle(collection) {
+      var index = -1,
+          length = collection ? collection.length : 0,
+          result = Array(typeof length == 'number' ? length : 0);
+
+      forEach(collection, function(value) {
+        var rand = baseRandom(0, ++index);
+        result[index] = result[rand];
+        result[rand] = value;
+      });
+      return result;
+    }
+
+    /**
+     * Gets the size of the `collection` by returning `collection.length` for arrays
+     * and array-like objects or the number of own enumerable properties for objects.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to inspect.
+     * @returns {number} Returns `collection.length` or number of own enumerable properties.
+     * @example
+     *
+     * _.size([1, 2]);
+     * // => 2
+     *
+     * _.size({ 'one': 1, 'two': 2, 'three': 3 });
+     * // => 3
+     *
+     * _.size('pebbles');
+     * // => 7
+     */
+    function size(collection) {
+      var length = collection ? collection.length : 0;
+      return typeof length == 'number' ? length : keys(collection).length;
+    }
+
+    /**
+     * Checks if the callback returns a truey value for **any** element of a
+     * collection. The function returns as soon as it finds a passing value and
+     * does not iterate over the entire collection. The callback is bound to
+     * `thisArg` and invoked with three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias any
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {boolean} Returns `true` if any element passed the callback check,
+     *  else `false`.
+     * @example
+     *
+     * _.some([null, 0, 'yes', false], Boolean);
+     * // => true
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'blocked': false },
+     *   { 'name': 'fred',   'age': 40, 'blocked': true }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.some(characters, 'blocked');
+     * // => true
+     *
+     * // using "_.where" callback shorthand
+     * _.some(characters, { 'age': 1 });
+     * // => false
+     */
+    function some(collection, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          if ((result = callback(collection[index], index, collection))) {
+            break;
+          }
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          return !(result = callback(value, index, collection));
+        });
+      }
+      return !!result;
+    }
+
+    /**
+     * Creates an array of elements, sorted in ascending order by the results of
+     * running each element in a collection through the callback. This method
+     * performs a stable sort, that is, it will preserve the original sort order
+     * of equal elements. The callback is bound to `thisArg` and invoked with
+     * three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an array of property names is provided for `callback` the collection
+     * will be sorted by each property value.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Array|Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of sorted elements.
+     * @example
+     *
+     * _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
+     * // => [3, 1, 2]
+     *
+     * _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
+     * // => [3, 1, 2]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36 },
+     *   { 'name': 'fred',    'age': 40 },
+     *   { 'name': 'barney',  'age': 26 },
+     *   { 'name': 'fred',    'age': 30 }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.map(_.sortBy(characters, 'age'), _.values);
+     * // => [['barney', 26], ['fred', 30], ['barney', 36], ['fred', 40]]
+     *
+     * // sorting by multiple properties
+     * _.map(_.sortBy(characters, ['name', 'age']), _.values);
+     * // = > [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
+     */
+    function sortBy(collection, callback, thisArg) {
+      var index = -1,
+          isArr = isArray(callback),
+          length = collection ? collection.length : 0,
+          result = Array(typeof length == 'number' ? length : 0);
+
+      if (!isArr) {
+        callback = lodash.createCallback(callback, thisArg, 3);
+      }
+      forEach(collection, function(value, key, collection) {
+        var object = result[++index] = getObject();
+        if (isArr) {
+          object.criteria = map(callback, function(key) { return value[key]; });
+        } else {
+          (object.criteria = getArray())[0] = callback(value, key, collection);
+        }
+        object.index = index;
+        object.value = value;
+      });
+
+      length = result.length;
+      result.sort(compareAscending);
+      while (length--) {
+        var object = result[length];
+        result[length] = object.value;
+        if (!isArr) {
+          releaseArray(object.criteria);
+        }
+        releaseObject(object);
+      }
+      return result;
+    }
+
+    /**
+     * Converts the `collection` to an array.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to convert.
+     * @returns {Array} Returns the new converted array.
+     * @example
+     *
+     * (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4);
+     * // => [2, 3, 4]
+     */
+    function toArray(collection) {
+      if (collection && typeof collection.length == 'number') {
+        return slice(collection);
+      }
+      return values(collection);
+    }
+
+    /**
+     * Performs a deep comparison of each element in a `collection` to the given
+     * `properties` object, returning an array of all elements that have equivalent
+     * property values.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Object} props The object of property values to filter by.
+     * @returns {Array} Returns a new array of elements that have the given properties.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'pets': ['hoppy'] },
+     *   { 'name': 'fred',   'age': 40, 'pets': ['baby puss', 'dino'] }
+     * ];
+     *
+     * _.where(characters, { 'age': 36 });
+     * // => [{ 'name': 'barney', 'age': 36, 'pets': ['hoppy'] }]
+     *
+     * _.where(characters, { 'pets': ['dino'] });
+     * // => [{ 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }]
+     */
+    var where = filter;
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates an array with all falsey values removed. The values `false`, `null`,
+     * `0`, `""`, `undefined`, and `NaN` are all falsey.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to compact.
+     * @returns {Array} Returns a new array of filtered values.
+     * @example
+     *
+     * _.compact([0, 1, false, 2, '', 3]);
+     * // => [1, 2, 3]
+     */
+    function compact(array) {
+      var index = -1,
+          length = array ? array.length : 0,
+          result = [];
+
+      while (++index < length) {
+        var value = array[index];
+        if (value) {
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Creates an array excluding all values of the provided arrays using strict
+     * equality for comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to process.
+     * @param {...Array} [values] The arrays of values to exclude.
+     * @returns {Array} Returns a new array of filtered values.
+     * @example
+     *
+     * _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
+     * // => [1, 3, 4]
+     */
+    function difference(array) {
+      return baseDifference(array, baseFlatten(arguments, true, true, 1));
+    }
+
+    /**
+     * This method is like `_.find` except that it returns the index of the first
+     * element that passes the callback check, instead of the element itself.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {number} Returns the index of the found element, else `-1`.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36, 'blocked': false },
+     *   { 'name': 'fred',    'age': 40, 'blocked': true },
+     *   { 'name': 'pebbles', 'age': 1,  'blocked': false }
+     * ];
+     *
+     * _.findIndex(characters, function(chr) {
+     *   return chr.age < 20;
+     * });
+     * // => 2
+     *
+     * // using "_.where" callback shorthand
+     * _.findIndex(characters, { 'age': 36 });
+     * // => 0
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findIndex(characters, 'blocked');
+     * // => 1
+     */
+    function findIndex(array, callback, thisArg) {
+      var index = -1,
+          length = array ? array.length : 0;
+
+      callback = lodash.createCallback(callback, thisArg, 3);
+      while (++index < length) {
+        if (callback(array[index], index, array)) {
+          return index;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * This method is like `_.findIndex` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {number} Returns the index of the found element, else `-1`.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36, 'blocked': true },
+     *   { 'name': 'fred',    'age': 40, 'blocked': false },
+     *   { 'name': 'pebbles', 'age': 1,  'blocked': true }
+     * ];
+     *
+     * _.findLastIndex(characters, function(chr) {
+     *   return chr.age > 30;
+     * });
+     * // => 1
+     *
+     * // using "_.where" callback shorthand
+     * _.findLastIndex(characters, { 'age': 36 });
+     * // => 0
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findLastIndex(characters, 'blocked');
+     * // => 2
+     */
+    function findLastIndex(array, callback, thisArg) {
+      var length = array ? array.length : 0;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      while (length--) {
+        if (callback(array[length], length, array)) {
+          return length;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * Gets the first element or first `n` elements of an array. If a callback
+     * is provided elements at the beginning of the array are returned as long
+     * as the callback returns truey. The callback is bound to `thisArg` and
+     * invoked with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias head, take
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback] The function called
+     *  per element or the number of elements to return. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the first element(s) of `array`.
+     * @example
+     *
+     * _.first([1, 2, 3]);
+     * // => 1
+     *
+     * _.first([1, 2, 3], 2);
+     * // => [1, 2]
+     *
+     * _.first([1, 2, 3], function(num) {
+     *   return num < 3;
+     * });
+     * // => [1, 2]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': false, 'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.first(characters, 'blocked');
+     * // => [{ 'name': 'barney', 'blocked': true, 'employer': 'slate' }]
+     *
+     * // using "_.where" callback shorthand
+     * _.pluck(_.first(characters, { 'employer': 'slate' }), 'name');
+     * // => ['barney', 'fred']
+     */
+    function first(array, callback, thisArg) {
+      var n = 0,
+          length = array ? array.length : 0;
+
+      if (typeof callback != 'number' && callback != null) {
+        var index = -1;
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (++index < length && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = callback;
+        if (n == null || thisArg) {
+          return array ? array[0] : undefined;
+        }
+      }
+      return slice(array, 0, nativeMin(nativeMax(0, n), length));
+    }
+
+    /**
+     * Flattens a nested array (the nesting can be to any depth). If `isShallow`
+     * is truey, the array will only be flattened a single level. If a callback
+     * is provided each element of the array is passed through the callback before
+     * flattening. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to flatten.
+     * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new flattened array.
+     * @example
+     *
+     * _.flatten([1, [2], [3, [[4]]]]);
+     * // => [1, 2, 3, 4];
+     *
+     * _.flatten([1, [2], [3, [[4]]]], true);
+     * // => [1, 2, 3, [[4]]];
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 30, 'pets': ['hoppy'] },
+     *   { 'name': 'fred',   'age': 40, 'pets': ['baby puss', 'dino'] }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.flatten(characters, 'pets');
+     * // => ['hoppy', 'baby puss', 'dino']
+     */
+    function flatten(array, isShallow, callback, thisArg) {
+      // juggle arguments
+      if (typeof isShallow != 'boolean' && isShallow != null) {
+        thisArg = callback;
+        callback = (typeof isShallow != 'function' && thisArg && thisArg[isShallow] === array) ? null : isShallow;
+        isShallow = false;
+      }
+      if (callback != null) {
+        array = map(array, callback, thisArg);
+      }
+      return baseFlatten(array, isShallow);
+    }
+
+    /**
+     * Gets the index at which the first occurrence of `value` is found using
+     * strict equality for comparisons, i.e. `===`. If the array is already sorted
+     * providing `true` for `fromIndex` will run a faster binary search.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {*} value The value to search for.
+     * @param {boolean|number} [fromIndex=0] The index to search from or `true`
+     *  to perform a binary search on a sorted array.
+     * @returns {number} Returns the index of the matched value or `-1`.
+     * @example
+     *
+     * _.indexOf([1, 2, 3, 1, 2, 3], 2);
+     * // => 1
+     *
+     * _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
+     * // => 4
+     *
+     * _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
+     * // => 2
+     */
+    function indexOf(array, value, fromIndex) {
+      if (typeof fromIndex == 'number') {
+        var length = array ? array.length : 0;
+        fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0);
+      } else if (fromIndex) {
+        var index = sortedIndex(array, value);
+        return array[index] === value ? index : -1;
+      }
+      return baseIndexOf(array, value, fromIndex);
+    }
+
+    /**
+     * Gets all but the last element or last `n` elements of an array. If a
+     * callback is provided elements at the end of the array are excluded from
+     * the result as long as the callback returns truey. The callback is bound
+     * to `thisArg` and invoked with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback=1] The function called
+     *  per element or the number of elements to exclude. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a slice of `array`.
+     * @example
+     *
+     * _.initial([1, 2, 3]);
+     * // => [1, 2]
+     *
+     * _.initial([1, 2, 3], 2);
+     * // => [1]
+     *
+     * _.initial([1, 2, 3], function(num) {
+     *   return num > 1;
+     * });
+     * // => [1]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': false, 'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.initial(characters, 'blocked');
+     * // => [{ 'name': 'barney',  'blocked': false, 'employer': 'slate' }]
+     *
+     * // using "_.where" callback shorthand
+     * _.pluck(_.initial(characters, { 'employer': 'na' }), 'name');
+     * // => ['barney', 'fred']
+     */
+    function initial(array, callback, thisArg) {
+      var n = 0,
+          length = array ? array.length : 0;
+
+      if (typeof callback != 'number' && callback != null) {
+        var index = length;
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (index-- && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = (callback == null || thisArg) ? 1 : callback || n;
+      }
+      return slice(array, 0, nativeMin(nativeMax(0, length - n), length));
+    }
+
+    /**
+     * Creates an array of unique values present in all provided arrays using
+     * strict equality for comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {...Array} [array] The arrays to inspect.
+     * @returns {Array} Returns an array of shared values.
+     * @example
+     *
+     * _.intersection([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+     * // => [1, 2]
+     */
+    function intersection() {
+      var args = [],
+          argsIndex = -1,
+          argsLength = arguments.length,
+          caches = getArray(),
+          indexOf = getIndexOf(),
+          trustIndexOf = indexOf === baseIndexOf,
+          seen = getArray();
+
+      while (++argsIndex < argsLength) {
+        var value = arguments[argsIndex];
+        if (isArray(value) || isArguments(value)) {
+          args.push(value);
+          caches.push(trustIndexOf && value.length >= largeArraySize &&
+            createCache(argsIndex ? args[argsIndex] : seen));
+        }
+      }
+      var array = args[0],
+          index = -1,
+          length = array ? array.length : 0,
+          result = [];
+
+      outer:
+      while (++index < length) {
+        var cache = caches[0];
+        value = array[index];
+
+        if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
+          argsIndex = argsLength;
+          (cache || seen).push(value);
+          while (--argsIndex) {
+            cache = caches[argsIndex];
+            if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
+              continue outer;
+            }
+          }
+          result.push(value);
+        }
+      }
+      while (argsLength--) {
+        cache = caches[argsLength];
+        if (cache) {
+          releaseObject(cache);
+        }
+      }
+      releaseArray(caches);
+      releaseArray(seen);
+      return result;
+    }
+
+    /**
+     * Gets the last element or last `n` elements of an array. If a callback is
+     * provided elements at the end of the array are returned as long as the
+     * callback returns truey. The callback is bound to `thisArg` and invoked
+     * with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback] The function called
+     *  per element or the number of elements to return. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the last element(s) of `array`.
+     * @example
+     *
+     * _.last([1, 2, 3]);
+     * // => 3
+     *
+     * _.last([1, 2, 3], 2);
+     * // => [2, 3]
+     *
+     * _.last([1, 2, 3], function(num) {
+     *   return num > 1;
+     * });
+     * // => [2, 3]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': false, 'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.pluck(_.last(characters, 'blocked'), 'name');
+     * // => ['fred', 'pebbles']
+     *
+     * // using "_.where" callback shorthand
+     * _.last(characters, { 'employer': 'na' });
+     * // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+     */
+    function last(array, callback, thisArg) {
+      var n = 0,
+          length = array ? array.length : 0;
+
+      if (typeof callback != 'number' && callback != null) {
+        var index = length;
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (index-- && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = callback;
+        if (n == null || thisArg) {
+          return array ? array[length - 1] : undefined;
+        }
+      }
+      return slice(array, nativeMax(0, length - n));
+    }
+
+    /**
+     * Gets the index at which the last occurrence of `value` is found using strict
+     * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
+     * as the offset from the end of the collection.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {*} value The value to search for.
+     * @param {number} [fromIndex=array.length-1] The index to search from.
+     * @returns {number} Returns the index of the matched value or `-1`.
+     * @example
+     *
+     * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
+     * // => 4
+     *
+     * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
+     * // => 1
+     */
+    function lastIndexOf(array, value, fromIndex) {
+      var index = array ? array.length : 0;
+      if (typeof fromIndex == 'number') {
+        index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
+      }
+      while (index--) {
+        if (array[index] === value) {
+          return index;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * Removes all provided values from the given array using strict equality for
+     * comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to modify.
+     * @param {...*} [value] The values to remove.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = [1, 2, 3, 1, 2, 3];
+     * _.pull(array, 2, 3);
+     * console.log(array);
+     * // => [1, 1]
+     */
+    function pull(array) {
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = args.length,
+          length = array ? array.length : 0;
+
+      while (++argsIndex < argsLength) {
+        var index = -1,
+            value = args[argsIndex];
+        while (++index < length) {
+          if (array[index] === value) {
+            splice.call(array, index--, 1);
+            length--;
+          }
+        }
+      }
+      return array;
+    }
+
+    /**
+     * Creates an array of numbers (positive and/or negative) progressing from
+     * `start` up to but not including `end`. If `start` is less than `stop` a
+     * zero-length range is created unless a negative `step` is specified.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {number} [start=0] The start of the range.
+     * @param {number} end The end of the range.
+     * @param {number} [step=1] The value to increment or decrement by.
+     * @returns {Array} Returns a new range array.
+     * @example
+     *
+     * _.range(4);
+     * // => [0, 1, 2, 3]
+     *
+     * _.range(1, 5);
+     * // => [1, 2, 3, 4]
+     *
+     * _.range(0, 20, 5);
+     * // => [0, 5, 10, 15]
+     *
+     * _.range(0, -4, -1);
+     * // => [0, -1, -2, -3]
+     *
+     * _.range(1, 4, 0);
+     * // => [1, 1, 1]
+     *
+     * _.range(0);
+     * // => []
+     */
+    function range(start, end, step) {
+      start = +start || 0;
+      step = typeof step == 'number' ? step : (+step || 1);
+
+      if (end == null) {
+        end = start;
+        start = 0;
+      }
+      // use `Array(length)` so engines like Chakra and V8 avoid slower modes
+      // http://youtu.be/XAqIpGU8ZZk#t=17m25s
+      var index = -1,
+          length = nativeMax(0, ceil((end - start) / (step || 1))),
+          result = Array(length);
+
+      while (++index < length) {
+        result[index] = start;
+        start += step;
+      }
+      return result;
+    }
+
+    /**
+     * Removes all elements from an array that the callback returns truey for
+     * and returns an array of removed elements. The callback is bound to `thisArg`
+     * and invoked with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to modify.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of removed elements.
+     * @example
+     *
+     * var array = [1, 2, 3, 4, 5, 6];
+     * var evens = _.remove(array, function(num) { return num % 2 == 0; });
+     *
+     * console.log(array);
+     * // => [1, 3, 5]
+     *
+     * console.log(evens);
+     * // => [2, 4, 6]
+     */
+    function remove(array, callback, thisArg) {
+      var index = -1,
+          length = array ? array.length : 0,
+          result = [];
+
+      callback = lodash.createCallback(callback, thisArg, 3);
+      while (++index < length) {
+        var value = array[index];
+        if (callback(value, index, array)) {
+          result.push(value);
+          splice.call(array, index--, 1);
+          length--;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The opposite of `_.initial` this method gets all but the first element or
+     * first `n` elements of an array. If a callback function is provided elements
+     * at the beginning of the array are excluded from the result as long as the
+     * callback returns truey. The callback is bound to `thisArg` and invoked
+     * with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias drop, tail
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback=1] The function called
+     *  per element or the number of elements to exclude. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a slice of `array`.
+     * @example
+     *
+     * _.rest([1, 2, 3]);
+     * // => [2, 3]
+     *
+     * _.rest([1, 2, 3], 2);
+     * // => [3]
+     *
+     * _.rest([1, 2, 3], function(num) {
+     *   return num < 3;
+     * });
+     * // => [3]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': false,  'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.pluck(_.rest(characters, 'blocked'), 'name');
+     * // => ['fred', 'pebbles']
+     *
+     * // using "_.where" callback shorthand
+     * _.rest(characters, { 'employer': 'slate' });
+     * // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+     */
+    function rest(array, callback, thisArg) {
+      if (typeof callback != 'number' && callback != null) {
+        var n = 0,
+            index = -1,
+            length = array ? array.length : 0;
+
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (++index < length && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = (callback == null || thisArg) ? 1 : nativeMax(0, callback);
+      }
+      return slice(array, n);
+    }
+
+    /**
+     * Uses a binary search to determine the smallest index at which a value
+     * should be inserted into a given sorted array in order to maintain the sort
+     * order of the array. If a callback is provided it will be executed for
+     * `value` and each element of `array` to compute their sort ranking. The
+     * callback is bound to `thisArg` and invoked with one argument; (value).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to inspect.
+     * @param {*} value The value to evaluate.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     * @example
+     *
+     * _.sortedIndex([20, 30, 50], 40);
+     * // => 2
+     *
+     * // using "_.pluck" callback shorthand
+     * _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
+     * // => 2
+     *
+     * var dict = {
+     *   'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 }
+     * };
+     *
+     * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+     *   return dict.wordToNumber[word];
+     * });
+     * // => 2
+     *
+     * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+     *   return this.wordToNumber[word];
+     * }, dict);
+     * // => 2
+     */
+    function sortedIndex(array, value, callback, thisArg) {
+      var low = 0,
+          high = array ? array.length : low;
+
+      // explicitly reference `identity` for better inlining in Firefox
+      callback = callback ? lodash.createCallback(callback, thisArg, 1) : identity;
+      value = callback(value);
+
+      while (low < high) {
+        var mid = (low + high) >>> 1;
+        (callback(array[mid]) < value)
+          ? low = mid + 1
+          : high = mid;
+      }
+      return low;
+    }
+
+    /**
+     * Creates an array of unique values, in order, of the provided arrays using
+     * strict equality for comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {...Array} [array] The arrays to inspect.
+     * @returns {Array} Returns an array of combined values.
+     * @example
+     *
+     * _.union([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+     * // => [1, 2, 3, 5, 4]
+     */
+    function union() {
+      return baseUniq(baseFlatten(arguments, true, true));
+    }
+
+    /**
+     * Creates a duplicate-value-free version of an array using strict equality
+     * for comparisons, i.e. `===`. If the array is sorted, providing
+     * `true` for `isSorted` will use a faster algorithm. If a callback is provided
+     * each element of `array` is passed through the callback before uniqueness
+     * is computed. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias unique
+     * @category Arrays
+     * @param {Array} array The array to process.
+     * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a duplicate-value-free array.
+     * @example
+     *
+     * _.uniq([1, 2, 1, 3, 1]);
+     * // => [1, 2, 3]
+     *
+     * _.uniq([1, 1, 2, 2, 3], true);
+     * // => [1, 2, 3]
+     *
+     * _.uniq(['A', 'b', 'C', 'a', 'B', 'c'], function(letter) { return letter.toLowerCase(); });
+     * // => ['A', 'b', 'C']
+     *
+     * _.uniq([1, 2.5, 3, 1.5, 2, 3.5], function(num) { return this.floor(num); }, Math);
+     * // => [1, 2.5, 3]
+     *
+     * // using "_.pluck" callback shorthand
+     * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
+     * // => [{ 'x': 1 }, { 'x': 2 }]
+     */
+    function uniq(array, isSorted, callback, thisArg) {
+      // juggle arguments
+      if (typeof isSorted != 'boolean' && isSorted != null) {
+        thisArg = callback;
+        callback = (typeof isSorted != 'function' && thisArg && thisArg[isSorted] === array) ? null : isSorted;
+        isSorted = false;
+      }
+      if (callback != null) {
+        callback = lodash.createCallback(callback, thisArg, 3);
+      }
+      return baseUniq(array, isSorted, callback);
+    }
+
+    /**
+     * Creates an array excluding all provided values using strict equality for
+     * comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to filter.
+     * @param {...*} [value] The values to exclude.
+     * @returns {Array} Returns a new array of filtered values.
+     * @example
+     *
+     * _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
+     * // => [2, 3, 4]
+     */
+    function without(array) {
+      return baseDifference(array, slice(arguments, 1));
+    }
+
+    /**
+     * Creates an array that is the symmetric difference of the provided arrays.
+     * See http://en.wikipedia.org/wiki/Symmetric_difference.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {...Array} [array] The arrays to inspect.
+     * @returns {Array} Returns an array of values.
+     * @example
+     *
+     * _.xor([1, 2, 3], [5, 2, 1, 4]);
+     * // => [3, 5, 4]
+     *
+     * _.xor([1, 2, 5], [2, 3, 5], [3, 4, 5]);
+     * // => [1, 4, 5]
+     */
+    function xor() {
+      var index = -1,
+          length = arguments.length;
+
+      while (++index < length) {
+        var array = arguments[index];
+        if (isArray(array) || isArguments(array)) {
+          var result = result
+            ? baseUniq(baseDifference(result, array).concat(baseDifference(array, result)))
+            : array;
+        }
+      }
+      return result || [];
+    }
+
+    /**
+     * Creates an array of grouped elements, the first of which contains the first
+     * elements of the given arrays, the second of which contains the second
+     * elements of the given arrays, and so on.
+     *
+     * @static
+     * @memberOf _
+     * @alias unzip
+     * @category Arrays
+     * @param {...Array} [array] Arrays to process.
+     * @returns {Array} Returns a new array of grouped elements.
+     * @example
+     *
+     * _.zip(['fred', 'barney'], [30, 40], [true, false]);
+     * // => [['fred', 30, true], ['barney', 40, false]]
+     */
+    function zip() {
+      var array = arguments.length > 1 ? arguments : arguments[0],
+          index = -1,
+          length = array ? max(pluck(array, 'length')) : 0,
+          result = Array(length < 0 ? 0 : length);
+
+      while (++index < length) {
+        result[index] = pluck(array, index);
+      }
+      return result;
+    }
+
+    /**
+     * Creates an object composed from arrays of `keys` and `values`. Provide
+     * either a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`
+     * or two arrays, one of `keys` and one of corresponding `values`.
+     *
+     * @static
+     * @memberOf _
+     * @alias object
+     * @category Arrays
+     * @param {Array} keys The array of keys.
+     * @param {Array} [values=[]] The array of values.
+     * @returns {Object} Returns an object composed of the given keys and
+     *  corresponding values.
+     * @example
+     *
+     * _.zipObject(['fred', 'barney'], [30, 40]);
+     * // => { 'fred': 30, 'barney': 40 }
+     */
+    function zipObject(keys, values) {
+      var index = -1,
+          length = keys ? keys.length : 0,
+          result = {};
+
+      if (!values && length && !isArray(keys[0])) {
+        values = [];
+      }
+      while (++index < length) {
+        var key = keys[index];
+        if (values) {
+          result[key] = values[index];
+        } else if (key) {
+          result[key[0]] = key[1];
+        }
+      }
+      return result;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a function that executes `func`, with  the `this` binding and
+     * arguments of the created function, only after being called `n` times.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {number} n The number of times the function must be called before
+     *  `func` is executed.
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * var saves = ['profile', 'settings'];
+     *
+     * var done = _.after(saves.length, function() {
+     *   console.log('Done saving!');
+     * });
+     *
+     * _.forEach(saves, function(type) {
+     *   asyncSave({ 'type': type, 'complete': done });
+     * });
+     * // => logs 'Done saving!', after all saves have completed
+     */
+    function after(n, func) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      return function() {
+        if (--n < 1) {
+          return func.apply(this, arguments);
+        }
+      };
+    }
+
+    /**
+     * Creates a function that, when called, invokes `func` with the `this`
+     * binding of `thisArg` and prepends any additional `bind` arguments to those
+     * provided to the bound function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to bind.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new bound function.
+     * @example
+     *
+     * var func = function(greeting) {
+     *   return greeting + ' ' + this.name;
+     * };
+     *
+     * func = _.bind(func, { 'name': 'fred' }, 'hi');
+     * func();
+     * // => 'hi fred'
+     */
+    function bind(func, thisArg) {
+      return arguments.length > 2
+        ? createWrapper(func, 17, slice(arguments, 2), null, thisArg)
+        : createWrapper(func, 1, null, null, thisArg);
+    }
+
+    /**
+     * Binds methods of an object to the object itself, overwriting the existing
+     * method. Method names may be specified as individual arguments or as arrays
+     * of method names. If no method names are provided all the function properties
+     * of `object` will be bound.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Object} object The object to bind and assign the bound methods to.
+     * @param {...string} [methodName] The object method names to
+     *  bind, specified as individual method names or arrays of method names.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var view = {
+     *   'label': 'docs',
+     *   'onClick': function() { console.log('clicked ' + this.label); }
+     * };
+     *
+     * _.bindAll(view);
+     * jQuery('#docs').on('click', view.onClick);
+     * // => logs 'clicked docs', when the button is clicked
+     */
+    function bindAll(object) {
+      var funcs = arguments.length > 1 ? baseFlatten(arguments, true, false, 1) : functions(object),
+          index = -1,
+          length = funcs.length;
+
+      while (++index < length) {
+        var key = funcs[index];
+        object[key] = createWrapper(object[key], 1, null, null, object);
+      }
+      return object;
+    }
+
+    /**
+     * Creates a function that, when called, invokes the method at `object[key]`
+     * and prepends any additional `bindKey` arguments to those provided to the bound
+     * function. This method differs from `_.bind` by allowing bound functions to
+     * reference methods that will be redefined or don't yet exist.
+     * See http://michaux.ca/articles/lazy-function-definition-pattern.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Object} object The object the method belongs to.
+     * @param {string} key The key of the method.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new bound function.
+     * @example
+     *
+     * var object = {
+     *   'name': 'fred',
+     *   'greet': function(greeting) {
+     *     return greeting + ' ' + this.name;
+     *   }
+     * };
+     *
+     * var func = _.bindKey(object, 'greet', 'hi');
+     * func();
+     * // => 'hi fred'
+     *
+     * object.greet = function(greeting) {
+     *   return greeting + 'ya ' + this.name + '!';
+     * };
+     *
+     * func();
+     * // => 'hiya fred!'
+     */
+    function bindKey(object, key) {
+      return arguments.length > 2
+        ? createWrapper(key, 19, slice(arguments, 2), null, object)
+        : createWrapper(key, 3, null, null, object);
+    }
+
+    /**
+     * Creates a function that is the composition of the provided functions,
+     * where each function consumes the return value of the function that follows.
+     * For example, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.
+     * Each function is executed with the `this` binding of the composed function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {...Function} [func] Functions to compose.
+     * @returns {Function} Returns the new composed function.
+     * @example
+     *
+     * var realNameMap = {
+     *   'pebbles': 'penelope'
+     * };
+     *
+     * var format = function(name) {
+     *   name = realNameMap[name.toLowerCase()] || name;
+     *   return name.charAt(0).toUpperCase() + name.slice(1).toLowerCase();
+     * };
+     *
+     * var greet = function(formatted) {
+     *   return 'Hiya ' + formatted + '!';
+     * };
+     *
+     * var welcome = _.compose(greet, format);
+     * welcome('pebbles');
+     * // => 'Hiya Penelope!'
+     */
+    function compose() {
+      var funcs = arguments,
+          length = funcs.length;
+
+      while (length--) {
+        if (!isFunction(funcs[length])) {
+          throw new TypeError;
+        }
+      }
+      return function() {
+        var args = arguments,
+            length = funcs.length;
+
+        while (length--) {
+          args = [funcs[length].apply(this, args)];
+        }
+        return args[0];
+      };
+    }
+
+    /**
+     * Creates a function which accepts one or more arguments of `func` that when
+     * invoked either executes `func` returning its result, if all `func` arguments
+     * have been provided, or returns a function that accepts one or more of the
+     * remaining `func` arguments, and so on. The arity of `func` can be specified
+     * if `func.length` is not sufficient.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to curry.
+     * @param {number} [arity=func.length] The arity of `func`.
+     * @returns {Function} Returns the new curried function.
+     * @example
+     *
+     * var curried = _.curry(function(a, b, c) {
+     *   console.log(a + b + c);
+     * });
+     *
+     * curried(1)(2)(3);
+     * // => 6
+     *
+     * curried(1, 2)(3);
+     * // => 6
+     *
+     * curried(1, 2, 3);
+     * // => 6
+     */
+    function curry(func, arity) {
+      arity = typeof arity == 'number' ? arity : (+arity || func.length);
+      return createWrapper(func, 4, null, null, null, arity);
+    }
+
+    /**
+     * Creates a function that will delay the execution of `func` until after
+     * `wait` milliseconds have elapsed since the last time it was invoked.
+     * Provide an options object to indicate that `func` should be invoked on
+     * the leading and/or trailing edge of the `wait` timeout. Subsequent calls
+     * to the debounced function will return the result of the last `func` call.
+     *
+     * Note: If `leading` and `trailing` options are `true` `func` will be called
+     * on the trailing edge of the timeout only if the the debounced function is
+     * invoked more than once during the `wait` timeout.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to debounce.
+     * @param {number} wait The number of milliseconds to delay.
+     * @param {Object} [options] The options object.
+     * @param {boolean} [options.leading=false] Specify execution on the leading edge of the timeout.
+     * @param {number} [options.maxWait] The maximum time `func` is allowed to be delayed before it's called.
+     * @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+     * @returns {Function} Returns the new debounced function.
+     * @example
+     *
+     * // avoid costly calculations while the window size is in flux
+     * var lazyLayout = _.debounce(calculateLayout, 150);
+     * jQuery(window).on('resize', lazyLayout);
+     *
+     * // execute `sendMail` when the click event is fired, debouncing subsequent calls
+     * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
+     *   'leading': true,
+     *   'trailing': false
+     * });
+     *
+     * // ensure `batchLog` is executed once after 1 second of debounced calls
+     * var source = new EventSource('/stream');
+     * source.addEventListener('message', _.debounce(batchLog, 250, {
+     *   'maxWait': 1000
+     * }, false);
+     */
+    function debounce(func, wait, options) {
+      var args,
+          maxTimeoutId,
+          result,
+          stamp,
+          thisArg,
+          timeoutId,
+          trailingCall,
+          lastCalled = 0,
+          maxWait = false,
+          trailing = true;
+
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      wait = nativeMax(0, wait) || 0;
+      if (options === true) {
+        var leading = true;
+        trailing = false;
+      } else if (isObject(options)) {
+        leading = options.leading;
+        maxWait = 'maxWait' in options && (nativeMax(wait, options.maxWait) || 0);
+        trailing = 'trailing' in options ? options.trailing : trailing;
+      }
+      var delayed = function() {
+        var remaining = wait - (now() - stamp);
+        if (remaining <= 0) {
+          if (maxTimeoutId) {
+            clearTimeout(maxTimeoutId);
+          }
+          var isCalled = trailingCall;
+          maxTimeoutId = timeoutId = trailingCall = undefined;
+          if (isCalled) {
+            lastCalled = now();
+            result = func.apply(thisArg, args);
+            if (!timeoutId && !maxTimeoutId) {
+              args = thisArg = null;
+            }
+          }
+        } else {
+          timeoutId = setTimeout(delayed, remaining);
+        }
+      };
+
+      var maxDelayed = function() {
+        if (timeoutId) {
+          clearTimeout(timeoutId);
+        }
+        maxTimeoutId = timeoutId = trailingCall = undefined;
+        if (trailing || (maxWait !== wait)) {
+          lastCalled = now();
+          result = func.apply(thisArg, args);
+          if (!timeoutId && !maxTimeoutId) {
+            args = thisArg = null;
+          }
+        }
+      };
+
+      return function() {
+        args = arguments;
+        stamp = now();
+        thisArg = this;
+        trailingCall = trailing && (timeoutId || !leading);
+
+        if (maxWait === false) {
+          var leadingCall = leading && !timeoutId;
+        } else {
+          if (!maxTimeoutId && !leading) {
+            lastCalled = stamp;
+          }
+          var remaining = maxWait - (stamp - lastCalled),
+              isCalled = remaining <= 0;
+
+          if (isCalled) {
+            if (maxTimeoutId) {
+              maxTimeoutId = clearTimeout(maxTimeoutId);
+            }
+            lastCalled = stamp;
+            result = func.apply(thisArg, args);
+          }
+          else if (!maxTimeoutId) {
+            maxTimeoutId = setTimeout(maxDelayed, remaining);
+          }
+        }
+        if (isCalled && timeoutId) {
+          timeoutId = clearTimeout(timeoutId);
+        }
+        else if (!timeoutId && wait !== maxWait) {
+          timeoutId = setTimeout(delayed, wait);
+        }
+        if (leadingCall) {
+          isCalled = true;
+          result = func.apply(thisArg, args);
+        }
+        if (isCalled && !timeoutId && !maxTimeoutId) {
+          args = thisArg = null;
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Defers executing the `func` function until the current call stack has cleared.
+     * Additional arguments will be provided to `func` when it is invoked.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to defer.
+     * @param {...*} [arg] Arguments to invoke the function with.
+     * @returns {number} Returns the timer id.
+     * @example
+     *
+     * _.defer(function(text) { console.log(text); }, 'deferred');
+     * // logs 'deferred' after one or more milliseconds
+     */
+    function defer(func) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      var args = slice(arguments, 1);
+      return setTimeout(function() { func.apply(undefined, args); }, 1);
+    }
+
+    /**
+     * Executes the `func` function after `wait` milliseconds. Additional arguments
+     * will be provided to `func` when it is invoked.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to delay.
+     * @param {number} wait The number of milliseconds to delay execution.
+     * @param {...*} [arg] Arguments to invoke the function with.
+     * @returns {number} Returns the timer id.
+     * @example
+     *
+     * _.delay(function(text) { console.log(text); }, 1000, 'later');
+     * // => logs 'later' after one second
+     */
+    function delay(func, wait) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      var args = slice(arguments, 2);
+      return setTimeout(function() { func.apply(undefined, args); }, wait);
+    }
+
+    /**
+     * Creates a function that memoizes the result of `func`. If `resolver` is
+     * provided it will be used to determine the cache key for storing the result
+     * based on the arguments provided to the memoized function. By default, the
+     * first argument provided to the memoized function is used as the cache key.
+     * The `func` is executed with the `this` binding of the memoized function.
+     * The result cache is exposed as the `cache` property on the memoized function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to have its output memoized.
+     * @param {Function} [resolver] A function used to resolve the cache key.
+     * @returns {Function} Returns the new memoizing function.
+     * @example
+     *
+     * var fibonacci = _.memoize(function(n) {
+     *   return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
+     * });
+     *
+     * fibonacci(9)
+     * // => 34
+     *
+     * var data = {
+     *   'fred': { 'name': 'fred', 'age': 40 },
+     *   'pebbles': { 'name': 'pebbles', 'age': 1 }
+     * };
+     *
+     * // modifying the result cache
+     * var get = _.memoize(function(name) { return data[name]; }, _.identity);
+     * get('pebbles');
+     * // => { 'name': 'pebbles', 'age': 1 }
+     *
+     * get.cache.pebbles.name = 'penelope';
+     * get('pebbles');
+     * // => { 'name': 'penelope', 'age': 1 }
+     */
+    function memoize(func, resolver) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      var memoized = function() {
+        var cache = memoized.cache,
+            key = resolver ? resolver.apply(this, arguments) : keyPrefix + arguments[0];
+
+        return hasOwnProperty.call(cache, key)
+          ? cache[key]
+          : (cache[key] = func.apply(this, arguments));
+      }
+      memoized.cache = {};
+      return memoized;
+    }
+
+    /**
+     * Creates a function that is restricted to execute `func` once. Repeat calls to
+     * the function will return the value of the first call. The `func` is executed
+     * with the `this` binding of the created function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * var initialize = _.once(createApplication);
+     * initialize();
+     * initialize();
+     * // `initialize` executes `createApplication` once
+     */
+    function once(func) {
+      var ran,
+          result;
+
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      return function() {
+        if (ran) {
+          return result;
+        }
+        ran = true;
+        result = func.apply(this, arguments);
+
+        // clear the `func` variable so the function may be garbage collected
+        func = null;
+        return result;
+      };
+    }
+
+    /**
+     * Creates a function that, when called, invokes `func` with any additional
+     * `partial` arguments prepended to those provided to the new function. This
+     * method is similar to `_.bind` except it does **not** alter the `this` binding.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to partially apply arguments to.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new partially applied function.
+     * @example
+     *
+     * var greet = function(greeting, name) { return greeting + ' ' + name; };
+     * var hi = _.partial(greet, 'hi');
+     * hi('fred');
+     * // => 'hi fred'
+     */
+    function partial(func) {
+      return createWrapper(func, 16, slice(arguments, 1));
+    }
+
+    /**
+     * This method is like `_.partial` except that `partial` arguments are
+     * appended to those provided to the new function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to partially apply arguments to.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new partially applied function.
+     * @example
+     *
+     * var defaultsDeep = _.partialRight(_.merge, _.defaults);
+     *
+     * var options = {
+     *   'variable': 'data',
+     *   'imports': { 'jq': $ }
+     * };
+     *
+     * defaultsDeep(options, _.templateSettings);
+     *
+     * options.variable
+     * // => 'data'
+     *
+     * options.imports
+     * // => { '_': _, 'jq': $ }
+     */
+    function partialRight(func) {
+      return createWrapper(func, 32, null, slice(arguments, 1));
+    }
+
+    /**
+     * Creates a function that, when executed, will only call the `func` function
+     * at most once per every `wait` milliseconds. Provide an options object to
+     * indicate that `func` should be invoked on the leading and/or trailing edge
+     * of the `wait` timeout. Subsequent calls to the throttled function will
+     * return the result of the last `func` call.
+     *
+     * Note: If `leading` and `trailing` options are `true` `func` will be called
+     * on the trailing edge of the timeout only if the the throttled function is
+     * invoked more than once during the `wait` timeout.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to throttle.
+     * @param {number} wait The number of milliseconds to throttle executions to.
+     * @param {Object} [options] The options object.
+     * @param {boolean} [options.leading=true] Specify execution on the leading edge of the timeout.
+     * @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+     * @returns {Function} Returns the new throttled function.
+     * @example
+     *
+     * // avoid excessively updating the position while scrolling
+     * var throttled = _.throttle(updatePosition, 100);
+     * jQuery(window).on('scroll', throttled);
+     *
+     * // execute `renewToken` when the click event is fired, but not more than once every 5 minutes
+     * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
+     *   'trailing': false
+     * }));
+     */
+    function throttle(func, wait, options) {
+      var leading = true,
+          trailing = true;
+
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      if (options === false) {
+        leading = false;
+      } else if (isObject(options)) {
+        leading = 'leading' in options ? options.leading : leading;
+        trailing = 'trailing' in options ? options.trailing : trailing;
+      }
+      debounceOptions.leading = leading;
+      debounceOptions.maxWait = wait;
+      debounceOptions.trailing = trailing;
+
+      return debounce(func, wait, debounceOptions);
+    }
+
+    /**
+     * Creates a function that provides `value` to the wrapper function as its
+     * first argument. Additional arguments provided to the function are appended
+     * to those provided to the wrapper function. The wrapper is executed with
+     * the `this` binding of the created function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {*} value The value to wrap.
+     * @param {Function} wrapper The wrapper function.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var p = _.wrap(_.escape, function(func, text) {
+     *   return '<p>' + func(text) + '</p>';
+     * });
+     *
+     * p('Fred, Wilma, & Pebbles');
+     * // => '<p>Fred, Wilma, &amp; Pebbles</p>'
+     */
+    function wrap(value, wrapper) {
+      return createWrapper(wrapper, 16, [value]);
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a function that returns `value`.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {*} value The value to return from the new function.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * var getter = _.constant(object);
+     * getter() === object;
+     * // => true
+     */
+    function constant(value) {
+      return function() {
+        return value;
+      };
+    }
+
+    /**
+     * Produces a callback bound to an optional `thisArg`. If `func` is a property
+     * name the created callback will return the property value for a given element.
+     * If `func` is an object the created callback will return `true` for elements
+     * that contain the equivalent object properties, otherwise it will return `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {*} [func=identity] The value to convert to a callback.
+     * @param {*} [thisArg] The `this` binding of the created callback.
+     * @param {number} [argCount] The number of arguments the callback accepts.
+     * @returns {Function} Returns a callback function.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // wrap to create custom callback shorthands
+     * _.createCallback = _.wrap(_.createCallback, function(func, callback, thisArg) {
+     *   var match = /^(.+?)__([gl]t)(.+)$/.exec(callback);
+     *   return !match ? func(callback, thisArg) : function(object) {
+     *     return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
+     *   };
+     * });
+     *
+     * _.filter(characters, 'age__gt38');
+     * // => [{ 'name': 'fred', 'age': 40 }]
+     */
+    function createCallback(func, thisArg, argCount) {
+      var type = typeof func;
+      if (func == null || type == 'function') {
+        return baseCreateCallback(func, thisArg, argCount);
+      }
+      // handle "_.pluck" style callback shorthands
+      if (type != 'object') {
+        return property(func);
+      }
+      var props = keys(func),
+          key = props[0],
+          a = func[key];
+
+      // handle "_.where" style callback shorthands
+      if (props.length == 1 && a === a && !isObject(a)) {
+        // fast path the common case of providing an object with a single
+        // property containing a primitive value
+        return function(object) {
+          var b = object[key];
+          return a === b && (a !== 0 || (1 / a == 1 / b));
+        };
+      }
+      return function(object) {
+        var length = props.length,
+            result = false;
+
+        while (length--) {
+          if (!(result = baseIsEqual(object[props[length]], func[props[length]], null, true))) {
+            break;
+          }
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their
+     * corresponding HTML entities.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} string The string to escape.
+     * @returns {string} Returns the escaped string.
+     * @example
+     *
+     * _.escape('Fred, Wilma, & Pebbles');
+     * // => 'Fred, Wilma, &amp; Pebbles'
+     */
+    function escape(string) {
+      return string == null ? '' : String(string).replace(reUnescapedHtml, escapeHtmlChar);
+    }
+
+    /**
+     * This method returns the first argument provided to it.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {*} value Any value.
+     * @returns {*} Returns `value`.
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * _.identity(object) === object;
+     * // => true
+     */
+    function identity(value) {
+      return value;
+    }
+
+    /**
+     * Adds function properties of a source object to the destination object.
+     * If `object` is a function methods will be added to its prototype as well.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {Function|Object} [object=lodash] object The destination object.
+     * @param {Object} source The object of functions to add.
+     * @param {Object} [options] The options object.
+     * @param {boolean} [options.chain=true] Specify whether the functions added are chainable.
+     * @example
+     *
+     * function capitalize(string) {
+     *   return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
+     * }
+     *
+     * _.mixin({ 'capitalize': capitalize });
+     * _.capitalize('fred');
+     * // => 'Fred'
+     *
+     * _('fred').capitalize().value();
+     * // => 'Fred'
+     *
+     * _.mixin({ 'capitalize': capitalize }, { 'chain': false });
+     * _('fred').capitalize();
+     * // => 'Fred'
+     */
+    function mixin(object, source, options) {
+      var chain = true,
+          methodNames = source && functions(source);
+
+      if (!source || (!options && !methodNames.length)) {
+        if (options == null) {
+          options = source;
+        }
+        ctor = lodashWrapper;
+        source = object;
+        object = lodash;
+        methodNames = functions(source);
+      }
+      if (options === false) {
+        chain = false;
+      } else if (isObject(options) && 'chain' in options) {
+        chain = options.chain;
+      }
+      var ctor = object,
+          isFunc = isFunction(ctor);
+
+      forEach(methodNames, function(methodName) {
+        var func = object[methodName] = source[methodName];
+        if (isFunc) {
+          ctor.prototype[methodName] = function() {
+            var chainAll = this.__chain__,
+                value = this.__wrapped__,
+                args = [value];
+
+            push.apply(args, arguments);
+            var result = func.apply(object, args);
+            if (chain || chainAll) {
+              if (value === result && isObject(result)) {
+                return this;
+              }
+              result = new ctor(result);
+              result.__chain__ = chainAll;
+            }
+            return result;
+          };
+        }
+      });
+    }
+
+    /**
+     * Reverts the '_' variable to its previous value and returns a reference to
+     * the `lodash` function.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @returns {Function} Returns the `lodash` function.
+     * @example
+     *
+     * var lodash = _.noConflict();
+     */
+    function noConflict() {
+      context._ = oldDash;
+      return this;
+    }
+
+    /**
+     * A no-operation function.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * _.noop(object) === undefined;
+     * // => true
+     */
+    function noop() {
+      // no operation performed
+    }
+
+    /**
+     * Gets the number of milliseconds that have elapsed since the Unix epoch
+     * (1 January 1970 00:00:00 UTC).
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @example
+     *
+     * var stamp = _.now();
+     * _.defer(function() { console.log(_.now() - stamp); });
+     * // => logs the number of milliseconds it took for the deferred function to be called
+     */
+    var now = isNative(now = Date.now) && now || function() {
+      return new Date().getTime();
+    };
+
+    /**
+     * Converts the given value into an integer of the specified radix.
+     * If `radix` is `undefined` or `0` a `radix` of `10` is used unless the
+     * `value` is a hexadecimal, in which case a `radix` of `16` is used.
+     *
+     * Note: This method avoids differences in native ES3 and ES5 `parseInt`
+     * implementations. See http://es5.github.io/#E.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} value The value to parse.
+     * @param {number} [radix] The radix used to interpret the value to parse.
+     * @returns {number} Returns the new integer value.
+     * @example
+     *
+     * _.parseInt('08');
+     * // => 8
+     */
+    var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
+      // Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
+      return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
+    };
+
+    /**
+     * Creates a "_.pluck" style function, which returns the `key` value of a
+     * given object.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} key The name of the property to retrieve.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'fred',   'age': 40 },
+     *   { 'name': 'barney', 'age': 36 }
+     * ];
+     *
+     * var getName = _.property('name');
+     *
+     * _.map(characters, getName);
+     * // => ['barney', 'fred']
+     *
+     * _.sortBy(characters, getName);
+     * // => [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred',   'age': 40 }]
+     */
+    function property(key) {
+      return function(object) {
+        return object[key];
+      };
+    }
+
+    /**
+     * Produces a random number between `min` and `max` (inclusive). If only one
+     * argument is provided a number between `0` and the given number will be
+     * returned. If `floating` is truey or either `min` or `max` are floats a
+     * floating-point number will be returned instead of an integer.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {number} [min=0] The minimum possible value.
+     * @param {number} [max=1] The maximum possible value.
+     * @param {boolean} [floating=false] Specify returning a floating-point number.
+     * @returns {number} Returns a random number.
+     * @example
+     *
+     * _.random(0, 5);
+     * // => an integer between 0 and 5
+     *
+     * _.random(5);
+     * // => also an integer between 0 and 5
+     *
+     * _.random(5, true);
+     * // => a floating-point number between 0 and 5
+     *
+     * _.random(1.2, 5.2);
+     * // => a floating-point number between 1.2 and 5.2
+     */
+    function random(min, max, floating) {
+      var noMin = min == null,
+          noMax = max == null;
+
+      if (floating == null) {
+        if (typeof min == 'boolean' && noMax) {
+          floating = min;
+          min = 1;
+        }
+        else if (!noMax && typeof max == 'boolean') {
+          floating = max;
+          noMax = true;
+        }
+      }
+      if (noMin && noMax) {
+        max = 1;
+      }
+      min = +min || 0;
+      if (noMax) {
+        max = min;
+        min = 0;
+      } else {
+        max = +max || 0;
+      }
+      if (floating || min % 1 || max % 1) {
+        var rand = nativeRandom();
+        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand +'').length - 1)))), max);
+      }
+      return baseRandom(min, max);
+    }
+
+    /**
+     * Resolves the value of property `key` on `object`. If `key` is a function
+     * it will be invoked with the `this` binding of `object` and its result returned,
+     * else the property value is returned. If `object` is falsey then `undefined`
+     * is returned.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {Object} object The object to inspect.
+     * @param {string} key The name of the property to resolve.
+     * @returns {*} Returns the resolved value.
+     * @example
+     *
+     * var object = {
+     *   'cheese': 'crumpets',
+     *   'stuff': function() {
+     *     return 'nonsense';
+     *   }
+     * };
+     *
+     * _.result(object, 'cheese');
+     * // => 'crumpets'
+     *
+     * _.result(object, 'stuff');
+     * // => 'nonsense'
+     */
+    function result(object, key) {
+      if (object) {
+        var value = object[key];
+        return isFunction(value) ? object[key]() : value;
+      }
+    }
+
+    /**
+     * A micro-templating method that handles arbitrary delimiters, preserves
+     * whitespace, and correctly escapes quotes within interpolated code.
+     *
+     * Note: In the development build, `_.template` utilizes sourceURLs for easier
+     * debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+     *
+     * For more information on precompiling templates see:
+     * http://lodash.com/custom-builds
+     *
+     * For more information on Chrome extension sandboxes see:
+     * http://developer.chrome.com/stable/extensions/sandboxingEval.html
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} text The template text.
+     * @param {Object} data The data object used to populate the text.
+     * @param {Object} [options] The options object.
+     * @param {RegExp} [options.escape] The "escape" delimiter.
+     * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
+     * @param {Object} [options.imports] An object to import into the template as local variables.
+     * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
+     * @param {string} [sourceURL] The sourceURL of the template's compiled source.
+     * @param {string} [variable] The data object variable name.
+     * @returns {Function|string} Returns a compiled function when no `data` object
+     *  is given, else it returns the interpolated text.
+     * @example
+     *
+     * // using the "interpolate" delimiter to create a compiled template
+     * var compiled = _.template('hello <%= name %>');
+     * compiled({ 'name': 'fred' });
+     * // => 'hello fred'
+     *
+     * // using the "escape" delimiter to escape HTML in data property values
+     * _.template('<b><%- value %></b>', { 'value': '<script>' });
+     * // => '<b>&lt;script&gt;</b>'
+     *
+     * // using the "evaluate" delimiter to generate HTML
+     * var list = '<% _.forEach(people, function(name) { %><li><%- name %></li><% }); %>';
+     * _.template(list, { 'people': ['fred', 'barney'] });
+     * // => '<li>fred</li><li>barney</li>'
+     *
+     * // using the ES6 delimiter as an alternative to the default "interpolate" delimiter
+     * _.template('hello ${ name }', { 'name': 'pebbles' });
+     * // => 'hello pebbles'
+     *
+     * // using the internal `print` function in "evaluate" delimiters
+     * _.template('<% print("hello " + name); %>!', { 'name': 'barney' });
+     * // => 'hello barney!'
+     *
+     * // using a custom template delimiters
+     * _.templateSettings = {
+     *   'interpolate': /{{([\s\S]+?)}}/g
+     * };
+     *
+     * _.template('hello {{ name }}!', { 'name': 'mustache' });
+     * // => 'hello mustache!'
+     *
+     * // using the `imports` option to import jQuery
+     * var list = '<% jq.each(people, function(name) { %><li><%- name %></li><% }); %>';
+     * _.template(list, { 'people': ['fred', 'barney'] }, { 'imports': { 'jq': jQuery } });
+     * // => '<li>fred</li><li>barney</li>'
+     *
+     * // using the `sourceURL` option to specify a custom sourceURL for the template
+     * var compiled = _.template('hello <%= name %>', null, { 'sourceURL': '/basic/greeting.jst' });
+     * compiled(data);
+     * // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
+     *
+     * // using the `variable` option to ensure a with-statement isn't used in the compiled template
+     * var compiled = _.template('hi <%= data.name %>!', null, { 'variable': 'data' });
+     * compiled.source;
+     * // => function(data) {
+     *   var __t, __p = '', __e = _.escape;
+     *   __p += 'hi ' + ((__t = ( data.name )) == null ? '' : __t) + '!';
+     *   return __p;
+     * }
+     *
+     * // using the `source` property to inline compiled templates for meaningful
+     * // line numbers in error messages and a stack trace
+     * fs.writeFileSync(path.join(cwd, 'jst.js'), '\
+     *   var JST = {\
+     *     "main": ' + _.template(mainText).source + '\
+     *   };\
+     * ');
+     */
+    function template(text, data, options) {
+      // based on John Resig's `tmpl` implementation
+      // http://ejohn.org/blog/javascript-micro-templating/
+      // and Laura Doktorova's doT.js
+      // https://github.com/olado/doT
+      var settings = lodash.templateSettings;
+      text = String(text || '');
+
+      // avoid missing dependencies when `iteratorTemplate` is not defined
+      options = defaults({}, options, settings);
+
+      var imports = defaults({}, options.imports, settings.imports),
+          importsKeys = keys(imports),
+          importsValues = values(imports);
+
+      var isEvaluating,
+          index = 0,
+          interpolate = options.interpolate || reNoMatch,
+          source = "__p += '";
+
+      // compile the regexp to match each delimiter
+      var reDelimiters = RegExp(
+        (options.escape || reNoMatch).source + '|' +
+        interpolate.source + '|' +
+        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
+        (options.evaluate || reNoMatch).source + '|$'
+      , 'g');
+
+      text.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
+        interpolateValue || (interpolateValue = esTemplateValue);
+
+        // escape characters that cannot be included in string literals
+        source += text.slice(index, offset).replace(reUnescapedString, escapeStringChar);
+
+        // replace delimiters with snippets
+        if (escapeValue) {
+          source += "' +\n__e(" + escapeValue + ") +\n'";
+        }
+        if (evaluateValue) {
+          isEvaluating = true;
+          source += "';\n" + evaluateValue + ";\n__p += '";
+        }
+        if (interpolateValue) {
+          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
+        }
+        index = offset + match.length;
+
+        // the JS engine embedded in Adobe products requires returning the `match`
+        // string in order to produce the correct `offset` value
+        return match;
+      });
+
+      source += "';\n";
+
+      // if `variable` is not specified, wrap a with-statement around the generated
+      // code to add the data object to the top of the scope chain
+      var variable = options.variable,
+          hasVariable = variable;
+
+      if (!hasVariable) {
+        variable = 'obj';
+        source = 'with (' + variable + ') {\n' + source + '\n}\n';
+      }
+      // cleanup code by stripping empty strings
+      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
+        .replace(reEmptyStringMiddle, '$1')
+        .replace(reEmptyStringTrailing, '$1;');
+
+      // frame code as the function body
+      source = 'function(' + variable + ') {\n' +
+        (hasVariable ? '' : variable + ' || (' + variable + ' = {});\n') +
+        "var __t, __p = '', __e = _.escape" +
+        (isEvaluating
+          ? ', __j = Array.prototype.join;\n' +
+            "function print() { __p += __j.call(arguments, '') }\n"
+          : ';\n'
+        ) +
+        source +
+        'return __p\n}';
+
+      // Use a sourceURL for easier debugging.
+      // http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+      var sourceURL = '\n/*\n//# sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/';
+
+      try {
+        var result = Function(importsKeys, 'return ' + source + sourceURL).apply(undefined, importsValues);
+      } catch(e) {
+        e.source = source;
+        throw e;
+      }
+      if (data) {
+        return result(data);
+      }
+      // provide the compiled function's source by its `toString` method, in
+      // supported environments, or the `source` property as a convenience for
+      // inlining compiled templates during the build process
+      result.source = source;
+      return result;
+    }
+
+    /**
+     * Executes the callback `n` times, returning an array of the results
+     * of each callback execution. The callback is bound to `thisArg` and invoked
+     * with one argument; (index).
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {number} n The number of times to execute the callback.
+     * @param {Function} callback The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns an array of the results of each `callback` execution.
+     * @example
+     *
+     * var diceRolls = _.times(3, _.partial(_.random, 1, 6));
+     * // => [3, 6, 4]
+     *
+     * _.times(3, function(n) { mage.castSpell(n); });
+     * // => calls `mage.castSpell(n)` three times, passing `n` of `0`, `1`, and `2` respectively
+     *
+     * _.times(3, function(n) { this.cast(n); }, mage);
+     * // => also calls `mage.castSpell(n)` three times
+     */
+    function times(n, callback, thisArg) {
+      n = (n = +n) > -1 ? n : 0;
+      var index = -1,
+          result = Array(n);
+
+      callback = baseCreateCallback(callback, thisArg, 1);
+      while (++index < n) {
+        result[index] = callback(index);
+      }
+      return result;
+    }
+
+    /**
+     * The inverse of `_.escape` this method converts the HTML entities
+     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to their
+     * corresponding characters.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} string The string to unescape.
+     * @returns {string} Returns the unescaped string.
+     * @example
+     *
+     * _.unescape('Fred, Barney &amp; Pebbles');
+     * // => 'Fred, Barney & Pebbles'
+     */
+    function unescape(string) {
+      return string == null ? '' : String(string).replace(reEscapedHtml, unescapeHtmlChar);
+    }
+
+    /**
+     * Generates a unique ID. If `prefix` is provided the ID will be appended to it.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} [prefix] The value to prefix the ID with.
+     * @returns {string} Returns the unique ID.
+     * @example
+     *
+     * _.uniqueId('contact_');
+     * // => 'contact_104'
+     *
+     * _.uniqueId();
+     * // => '105'
+     */
+    function uniqueId(prefix) {
+      var id = ++idCounter;
+      return String(prefix == null ? '' : prefix) + id;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a `lodash` object that wraps the given value with explicit
+     * method chaining enabled.
+     *
+     * @static
+     * @memberOf _
+     * @category Chaining
+     * @param {*} value The value to wrap.
+     * @returns {Object} Returns the wrapper object.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36 },
+     *   { 'name': 'fred',    'age': 40 },
+     *   { 'name': 'pebbles', 'age': 1 }
+     * ];
+     *
+     * var youngest = _.chain(characters)
+     *     .sortBy('age')
+     *     .map(function(chr) { return chr.name + ' is ' + chr.age; })
+     *     .first()
+     *     .value();
+     * // => 'pebbles is 1'
+     */
+    function chain(value) {
+      value = new lodashWrapper(value);
+      value.__chain__ = true;
+      return value;
+    }
+
+    /**
+     * Invokes `interceptor` with the `value` as the first argument and then
+     * returns `value`. The purpose of this method is to "tap into" a method
+     * chain in order to perform operations on intermediate results within
+     * the chain.
+     *
+     * @static
+     * @memberOf _
+     * @category Chaining
+     * @param {*} value The value to provide to `interceptor`.
+     * @param {Function} interceptor The function to invoke.
+     * @returns {*} Returns `value`.
+     * @example
+     *
+     * _([1, 2, 3, 4])
+     *  .tap(function(array) { array.pop(); })
+     *  .reverse()
+     *  .value();
+     * // => [3, 2, 1]
+     */
+    function tap(value, interceptor) {
+      interceptor(value);
+      return value;
+    }
+
+    /**
+     * Enables explicit method chaining on the wrapper object.
+     *
+     * @name chain
+     * @memberOf _
+     * @category Chaining
+     * @returns {*} Returns the wrapper object.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // without explicit chaining
+     * _(characters).first();
+     * // => { 'name': 'barney', 'age': 36 }
+     *
+     * // with explicit chaining
+     * _(characters).chain()
+     *   .first()
+     *   .pick('age')
+     *   .value();
+     * // => { 'age': 36 }
+     */
+    function wrapperChain() {
+      this.__chain__ = true;
+      return this;
+    }
+
+    /**
+     * Produces the `toString` result of the wrapped value.
+     *
+     * @name toString
+     * @memberOf _
+     * @category Chaining
+     * @returns {string} Returns the string result.
+     * @example
+     *
+     * _([1, 2, 3]).toString();
+     * // => '1,2,3'
+     */
+    function wrapperToString() {
+      return String(this.__wrapped__);
+    }
+
+    /**
+     * Extracts the wrapped value.
+     *
+     * @name valueOf
+     * @memberOf _
+     * @alias value
+     * @category Chaining
+     * @returns {*} Returns the wrapped value.
+     * @example
+     *
+     * _([1, 2, 3]).valueOf();
+     * // => [1, 2, 3]
+     */
+    function wrapperValueOf() {
+      return this.__wrapped__;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    // add functions that return wrapped values when chaining
+    lodash.after = after;
+    lodash.assign = assign;
+    lodash.at = at;
+    lodash.bind = bind;
+    lodash.bindAll = bindAll;
+    lodash.bindKey = bindKey;
+    lodash.chain = chain;
+    lodash.compact = compact;
+    lodash.compose = compose;
+    lodash.constant = constant;
+    lodash.countBy = countBy;
+    lodash.create = create;
+    lodash.createCallback = createCallback;
+    lodash.curry = curry;
+    lodash.debounce = debounce;
+    lodash.defaults = defaults;
+    lodash.defer = defer;
+    lodash.delay = delay;
+    lodash.difference = difference;
+    lodash.filter = filter;
+    lodash.flatten = flatten;
+    lodash.forEach = forEach;
+    lodash.forEachRight = forEachRight;
+    lodash.forIn = forIn;
+    lodash.forInRight = forInRight;
+    lodash.forOwn = forOwn;
+    lodash.forOwnRight = forOwnRight;
+    lodash.functions = functions;
+    lodash.groupBy = groupBy;
+    lodash.indexBy = indexBy;
+    lodash.initial = initial;
+    lodash.intersection = intersection;
+    lodash.invert = invert;
+    lodash.invoke = invoke;
+    lodash.keys = keys;
+    lodash.map = map;
+    lodash.mapValues = mapValues;
+    lodash.max = max;
+    lodash.memoize = memoize;
+    lodash.merge = merge;
+    lodash.min = min;
+    lodash.omit = omit;
+    lodash.once = once;
+    lodash.pairs = pairs;
+    lodash.partial = partial;
+    lodash.partialRight = partialRight;
+    lodash.pick = pick;
+    lodash.pluck = pluck;
+    lodash.property = property;
+    lodash.pull = pull;
+    lodash.range = range;
+    lodash.reject = reject;
+    lodash.remove = remove;
+    lodash.rest = rest;
+    lodash.shuffle = shuffle;
+    lodash.sortBy = sortBy;
+    lodash.tap = tap;
+    lodash.throttle = throttle;
+    lodash.times = times;
+    lodash.toArray = toArray;
+    lodash.transform = transform;
+    lodash.union = union;
+    lodash.uniq = uniq;
+    lodash.values = values;
+    lodash.where = where;
+    lodash.without = without;
+    lodash.wrap = wrap;
+    lodash.xor = xor;
+    lodash.zip = zip;
+    lodash.zipObject = zipObject;
+
+    // add aliases
+    lodash.collect = map;
+    lodash.drop = rest;
+    lodash.each = forEach;
+    lodash.eachRight = forEachRight;
+    lodash.extend = assign;
+    lodash.methods = functions;
+    lodash.object = zipObject;
+    lodash.select = filter;
+    lodash.tail = rest;
+    lodash.unique = uniq;
+    lodash.unzip = zip;
+
+    // add functions to `lodash.prototype`
+    mixin(lodash);
+
+    /*--------------------------------------------------------------------------*/
+
+    // add functions that return unwrapped values when chaining
+    lodash.clone = clone;
+    lodash.cloneDeep = cloneDeep;
+    lodash.contains = contains;
+    lodash.escape = escape;
+    lodash.every = every;
+    lodash.find = find;
+    lodash.findIndex = findIndex;
+    lodash.findKey = findKey;
+    lodash.findLast = findLast;
+    lodash.findLastIndex = findLastIndex;
+    lodash.findLastKey = findLastKey;
+    lodash.has = has;
+    lodash.identity = identity;
+    lodash.indexOf = indexOf;
+    lodash.isArguments = isArguments;
+    lodash.isArray = isArray;
+    lodash.isBoolean = isBoolean;
+    lodash.isDate = isDate;
+    lodash.isElement = isElement;
+    lodash.isEmpty = isEmpty;
+    lodash.isEqual = isEqual;
+    lodash.isFinite = isFinite;
+    lodash.isFunction = isFunction;
+    lodash.isNaN = isNaN;
+    lodash.isNull = isNull;
+    lodash.isNumber = isNumber;
+    lodash.isObject = isObject;
+    lodash.isPlainObject = isPlainObject;
+    lodash.isRegExp = isRegExp;
+    lodash.isString = isString;
+    lodash.isUndefined = isUndefined;
+    lodash.lastIndexOf = lastIndexOf;
+    lodash.mixin = mixin;
+    lodash.noConflict = noConflict;
+    lodash.noop = noop;
+    lodash.now = now;
+    lodash.parseInt = parseInt;
+    lodash.random = random;
+    lodash.reduce = reduce;
+    lodash.reduceRight = reduceRight;
+    lodash.result = result;
+    lodash.runInContext = runInContext;
+    lodash.size = size;
+    lodash.some = some;
+    lodash.sortedIndex = sortedIndex;
+    lodash.template = template;
+    lodash.unescape = unescape;
+    lodash.uniqueId = uniqueId;
+
+    // add aliases
+    lodash.all = every;
+    lodash.any = some;
+    lodash.detect = find;
+    lodash.findWhere = find;
+    lodash.foldl = reduce;
+    lodash.foldr = reduceRight;
+    lodash.include = contains;
+    lodash.inject = reduce;
+
+    mixin(function() {
+      var source = {}
+      forOwn(lodash, function(func, methodName) {
+        if (!lodash.prototype[methodName]) {
+          source[methodName] = func;
+        }
+      });
+      return source;
+    }(), false);
+
+    /*--------------------------------------------------------------------------*/
+
+    // add functions capable of returning wrapped and unwrapped values when chaining
+    lodash.first = first;
+    lodash.last = last;
+    lodash.sample = sample;
+
+    // add aliases
+    lodash.take = first;
+    lodash.head = first;
+
+    forOwn(lodash, function(func, methodName) {
+      var callbackable = methodName !== 'sample';
+      if (!lodash.prototype[methodName]) {
+        lodash.prototype[methodName]= function(n, guard) {
+          var chainAll = this.__chain__,
+              result = func(this.__wrapped__, n, guard);
+
+          return !chainAll && (n == null || (guard && !(callbackable && typeof n == 'function')))
+            ? result
+            : new lodashWrapper(result, chainAll);
+        };
+      }
+    });
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * The semantic version number.
+     *
+     * @static
+     * @memberOf _
+     * @type string
+     */
+    lodash.VERSION = '2.4.1';
+
+    // add "Chaining" functions to the wrapper
+    lodash.prototype.chain = wrapperChain;
+    lodash.prototype.toString = wrapperToString;
+    lodash.prototype.value = wrapperValueOf;
+    lodash.prototype.valueOf = wrapperValueOf;
+
+    // add `Array` functions that return unwrapped values
+    forEach(['join', 'pop', 'shift'], function(methodName) {
+      var func = arrayRef[methodName];
+      lodash.prototype[methodName] = function() {
+        var chainAll = this.__chain__,
+            result = func.apply(this.__wrapped__, arguments);
+
+        return chainAll
+          ? new lodashWrapper(result, chainAll)
+          : result;
+      };
+    });
+
+    // add `Array` functions that return the existing wrapped value
+    forEach(['push', 'reverse', 'sort', 'unshift'], function(methodName) {
+      var func = arrayRef[methodName];
+      lodash.prototype[methodName] = function() {
+        func.apply(this.__wrapped__, arguments);
+        return this;
+      };
+    });
+
+    // add `Array` functions that return new wrapped values
+    forEach(['concat', 'slice', 'splice'], function(methodName) {
+      var func = arrayRef[methodName];
+      lodash.prototype[methodName] = function() {
+        return new lodashWrapper(func.apply(this.__wrapped__, arguments), this.__chain__);
+      };
+    });
+
+    return lodash;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  // expose Lo-Dash
+  var _ = runInContext();
+
+  // some AMD build optimizers like r.js check for condition patterns like the following:
+  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
+    // Expose Lo-Dash to the global object even when an AMD loader is present in
+    // case Lo-Dash is loaded with a RequireJS shim config.
+    // See http://requirejs.org/docs/api.html#config-shim
+    root._ = _;
+
+    // define as an anonymous module so, through path mapping, it can be
+    // referenced as the "underscore" module
+    define(function() {
+      return _;
+    });
+  }
+  // check for `exports` after `define` in case a build optimizer adds an `exports` object
+  else if (freeExports && freeModule) {
+    // in Node.js or RingoJS
+    if (moduleExports) {
+      (freeModule.exports = _)._ = _;
+    }
+    // in Narwhal or Rhino -require
+    else {
+      freeExports._ = _;
+    }
+  }
+  else {
+    // in a browser or Rhino
+    root._ = _;
+  }
+}.call(this));
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],102:[function(require,module,exports){
 (function (global){
 var graph = require('./graphDb');
 var flow = require('./parser/flow');
 var utils = require('./utils');
 var seq = require('./sequenceRenderer');
 var he = require('he');
-
+var dagreD3 = require('dagre-d3');
 /**
  * Function that adds the vertices found in the graph definition to the graph to be rendered.
  * @param vert Object containing the vertices.
@@ -966,7 +13306,7 @@ exports.tester = function(){};
  * @returns {string}
  */
 exports.version = function(){
-    return '0.2.10';
+    return '0.2.11';
 };
 
 var equals = function (val, variable){
@@ -977,23 +13317,25 @@ var equals = function (val, variable){
         return (val === variable);
     }
 };
-
-/**
- * Wait for coument loaded before starting the execution
- */
-document.addEventListener('DOMContentLoaded', function(){
-    // Check presence of config object
-    if(typeof mermaid_config !== 'undefined'){
-        // Check if property startOnLoad is set
-        if(equals(true,mermaid_config.startOnLoad)){
+if(typeof document !== 'undefined'){
+    /**
+     * Wait for coument loaded before starting the execution
+     */
+    document.addEventListener('DOMContentLoaded', function(){
+        // Check presence of config object
+        if(typeof mermaid_config !== 'undefined'){
+            // Check if property startOnLoad is set
+            if(equals(true,mermaid_config.startOnLoad)){
+                init();
+            }
+        }
+        else{
+            // No config found, do autostart in this simple case
             init();
         }
-    }
-    else{
-        // No config found, do autostart in this simple case
-        init();
-    }
-}, false);
+    }, false);
+
+}
 
 global.mermaid = {
     init:function(){
@@ -1004,7 +13346,7 @@ global.mermaid = {
     }
 };
 }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./graphDb":6,"./parser/flow":7,"./sequenceRenderer":10,"./utils":11,"he":4}],6:[function(require,module,exports){
+},{"./graphDb":103,"./parser/flow":104,"./sequenceRenderer":107,"./utils":108,"dagre-d3":1,"he":100}],103:[function(require,module,exports){
 /**
  * Created by knut on 14-11-03.
  */
@@ -1204,7 +13546,7 @@ exports.defaultStyle = function () {
 };
 
 
-},{}],7:[function(require,module,exports){
+},{}],104:[function(require,module,exports){
 (function (process){
 /* parser generated by jison 0.4.15 */
 /*
@@ -1973,7 +14315,7 @@ if (typeof module !== 'undefined' && require.main === module) {
 }
 }
 }).call(this,require("1YiZ5S"))
-},{"1YiZ5S":3,"fs":1,"path":2}],8:[function(require,module,exports){
+},{"1YiZ5S":99,"fs":97,"path":98}],105:[function(require,module,exports){
 (function (process){
 /* parser generated by jison 0.4.15 */
 /*
@@ -2639,7 +14981,7 @@ if (typeof module !== 'undefined' && require.main === module) {
 }
 }
 }).call(this,require("1YiZ5S"))
-},{"1YiZ5S":3,"fs":1,"path":2}],9:[function(require,module,exports){
+},{"1YiZ5S":99,"fs":97,"path":98}],106:[function(require,module,exports){
 /**
  * Created by knut on 14-11-19.
  */
@@ -2673,7 +15015,7 @@ exports.clear = function(){
     actors = {};
     messages = [];
 };
-},{}],10:[function(require,module,exports){
+},{}],107:[function(require,module,exports){
 /**
  * Created by knut on 14-11-23.
  */
@@ -2840,7 +15182,7 @@ module.exports.draw = function (text, id) {
      */
 };
 
-},{"./parser/sequence":8,"./sequenceDb":9}],11:[function(require,module,exports){
+},{"./parser/sequence":105,"./sequenceDb":106}],108:[function(require,module,exports){
 /**
  * Created by knut on 14-11-23.
  */
@@ -2852,4 +15194,4 @@ module.exports.detectType = function(text){
         return "graph";
     }
 }
-},{}]},{},[5])
\ No newline at end of file
+},{}]},{},[102])
\ No newline at end of file
diff --git a/dist/mermaid.full.min.js b/dist/mermaid.full.min.js
index 483978000..edbb8e9c2 100644
--- a/dist/mermaid.full.min.js
+++ b/dist/mermaid.full.min.js
@@ -30,6 +30,9 @@ module.exports={graphlib:require("./lib/graphlib"),dagre:require("./lib/dagre"),
 }));_.each(g.nodes(),function(v){var node=g.node(v);if(_.has(node,"rank")){node.rank-=min}})}function removeEmptyRanks(g){var offset=_.min(_.map(g.nodes(),function(v){return g.node(v).rank}));var layers=[];_.each(g.nodes(),function(v){var rank=g.node(v).rank-offset;if(!_.has(layers,rank)){layers[rank]=[]}layers[rank].push(v)});var delta=0,nodeRankFactor=g.graph().nodeRankFactor;_.each(layers,function(vs,i){if(_.isUndefined(vs)&&i%nodeRankFactor!==0){--delta}else if(delta){_.each(vs,function(v){g.node(v).rank+=delta})}})}function addBorderNode(g,prefix,rank,order){var node={width:0,height:0};if(arguments.length>=4){node.rank=rank;node.order=order}return addDummyNode(g,"border",node,prefix)}function maxRank(g){return _.max(_.map(g.nodes(),function(v){var rank=g.node(v).rank;if(!_.isUndefined(rank)){return rank}}))}function partition(collection,fn){var result={lhs:[],rhs:[]};_.each(collection,function(value){if(fn(value)){result.lhs.push(value)}else{result.rhs.push(value)}});return result}function time(name,fn){var start=_.now();try{return fn()}finally{console.log(name+" time: "+(_.now()-start)+"ms")}}function notime(name,fn){return fn()}},{"./graphlib":33,"./lodash":36}],56:[function(require,module,exports){module.exports="0.6.1"},{}],57:[function(require,module,exports){var lib=require("./lib");module.exports={Graph:lib.Graph,json:require("./lib/json"),alg:require("./lib/alg"),version:lib.version}},{"./lib":73,"./lib/alg":64,"./lib/json":74}],58:[function(require,module,exports){var _=require("../lodash");module.exports=components;function components(g){var visited={},cmpts=[],cmpt;function dfs(v){if(_.has(visited,v))return;visited[v]=true;cmpt.push(v);_.each(g.successors(v),dfs);_.each(g.predecessors(v),dfs)}_.each(g.nodes(),function(v){cmpt=[];dfs(v);if(cmpt.length){cmpts.push(cmpt)}});return cmpts}},{"../lodash":75}],59:[function(require,module,exports){var _=require("../lodash");module.exports=dfs;function dfs(g,vs,order){if(!_.isArray(vs)){vs=[vs]}var acc=[],visited={};_.each(vs,function(v){if(!g.hasNode(v)){throw new Error("Graph does not have node: "+v)}doDfs(g,v,order==="post",visited,acc)});return acc}function doDfs(g,v,postorder,visited,acc){if(!_.has(visited,v)){visited[v]=true;if(!postorder){acc.push(v)}_.each(g.neighbors(v),function(w){doDfs(g,w,postorder,visited,acc)});if(postorder){acc.push(v)}}}},{"../lodash":75}],60:[function(require,module,exports){var dijkstra=require("./dijkstra"),_=require("../lodash");module.exports=dijkstraAll;function dijkstraAll(g,weightFunc,edgeFunc){return _.transform(g.nodes(),function(acc,v){acc[v]=dijkstra(g,v,weightFunc,edgeFunc)},{})}},{"../lodash":75,"./dijkstra":61}],61:[function(require,module,exports){var _=require("../lodash"),PriorityQueue=require("../data/priority-queue");module.exports=dijkstra;var DEFAULT_WEIGHT_FUNC=_.constant(1);function dijkstra(g,source,weightFn,edgeFn){return runDijkstra(g,String(source),weightFn||DEFAULT_WEIGHT_FUNC,edgeFn||function(v){return g.outEdges(v)})}function runDijkstra(g,source,weightFn,edgeFn){var results={},pq=new PriorityQueue,v,vEntry;var updateNeighbors=function(edge){var w=edge.v!==v?edge.v:edge.w,wEntry=results[w],weight=weightFn(edge),distance=vEntry.distance+weight;if(weight<0){throw new Error("dijkstra does not allow negative edge weights. "+"Bad edge: "+edge+" Weight: "+weight)}if(distance<wEntry.distance){wEntry.distance=distance;wEntry.predecessor=v;pq.decrease(w,distance)}};g.nodes().forEach(function(v){var distance=v===source?0:Number.POSITIVE_INFINITY;results[v]={distance:distance};pq.add(v,distance)});while(pq.size()>0){v=pq.removeMin();vEntry=results[v];if(vEntry.distance===Number.POSITIVE_INFINITY){break}edgeFn(v).forEach(updateNeighbors)}return results}},{"../data/priority-queue":71,"../lodash":75}],62:[function(require,module,exports){var _=require("../lodash"),tarjan=require("./tarjan");module.exports=findCycles;function findCycles(g){return _.filter(tarjan(g),function(cmpt){return cmpt.length>1})}},{"../lodash":75,"./tarjan":69}],63:[function(require,module,exports){var _=require("../lodash");module.exports=floydWarshall;var DEFAULT_WEIGHT_FUNC=_.constant(1);function floydWarshall(g,weightFn,edgeFn){return runFloydWarshall(g,weightFn||DEFAULT_WEIGHT_FUNC,edgeFn||function(v){return g.outEdges(v)})}function runFloydWarshall(g,weightFn,edgeFn){var results={},nodes=g.nodes();nodes.forEach(function(v){results[v]={};results[v][v]={distance:0};nodes.forEach(function(w){if(v!==w){results[v][w]={distance:Number.POSITIVE_INFINITY}}});edgeFn(v).forEach(function(edge){var w=edge.v===v?edge.w:edge.v,d=weightFn(edge);results[v][w]={distance:d,predecessor:v}})});nodes.forEach(function(k){var rowK=results[k];nodes.forEach(function(i){var rowI=results[i];nodes.forEach(function(j){var ik=rowI[k];var kj=rowK[j];var ij=rowI[j];var altDistance=ik.distance+kj.distance;if(altDistance<ij.distance){ij.distance=altDistance;ij.predecessor=kj.predecessor}})})});return results}},{"../lodash":75}],64:[function(require,module,exports){module.exports={components:require("./components"),dijkstra:require("./dijkstra"),dijkstraAll:require("./dijkstra-all"),findCycles:require("./find-cycles"),floydWarshall:require("./floyd-warshall"),isAcyclic:require("./is-acyclic"),postorder:require("./postorder"),preorder:require("./preorder"),prim:require("./prim"),tarjan:require("./tarjan"),topsort:require("./topsort")}},{"./components":58,"./dijkstra":61,"./dijkstra-all":60,"./find-cycles":62,"./floyd-warshall":63,"./is-acyclic":65,"./postorder":66,"./preorder":67,"./prim":68,"./tarjan":69,"./topsort":70}],65:[function(require,module,exports){var topsort=require("./topsort");module.exports=isAcyclic;function isAcyclic(g){try{topsort(g)}catch(e){if(e instanceof topsort.CycleException){return false}throw e}return true}},{"./topsort":70}],66:[function(require,module,exports){var dfs=require("./dfs");module.exports=postorder;function postorder(g,vs){return dfs(g,vs,"post")}},{"./dfs":59}],67:[function(require,module,exports){var dfs=require("./dfs");module.exports=preorder;function preorder(g,vs){return dfs(g,vs,"pre")}},{"./dfs":59}],68:[function(require,module,exports){var _=require("../lodash"),Graph=require("../graph"),PriorityQueue=require("../data/priority-queue");module.exports=prim;function prim(g,weightFunc){var result=new Graph,parents={},pq=new PriorityQueue,v;function updateNeighbors(edge){var w=edge.v===v?edge.w:edge.v,pri=pq.priority(w);if(pri!==undefined){var edgeWeight=weightFunc(edge);if(edgeWeight<pri){parents[w]=v;pq.decrease(w,edgeWeight)}}}if(g.nodeCount()===0){return result}_.each(g.nodes(),function(v){pq.add(v,Number.POSITIVE_INFINITY);result.setNode(v)});pq.decrease(g.nodes()[0],0);var init=false;while(pq.size()>0){v=pq.removeMin();if(_.has(parents,v)){result.setEdge(v,parents[v])}else if(init){throw new Error("Input graph is not connected: "+g)}else{init=true}g.nodeEdges(v).forEach(updateNeighbors)}return result}},{"../data/priority-queue":71,"../graph":72,"../lodash":75}],69:[function(require,module,exports){var _=require("../lodash");module.exports=tarjan;function tarjan(g){var index=0,stack=[],visited={},results=[];function dfs(v){var entry=visited[v]={onStack:true,lowlink:index,index:index++};stack.push(v);g.successors(v).forEach(function(w){if(!_.has(visited,w)){dfs(w);entry.lowlink=Math.min(entry.lowlink,visited[w].lowlink)}else if(visited[w].onStack){entry.lowlink=Math.min(entry.lowlink,visited[w].index)}});if(entry.lowlink===entry.index){var cmpt=[],w;do{w=stack.pop();visited[w].onStack=false;cmpt.push(w)}while(v!==w);results.push(cmpt)}}g.nodes().forEach(function(v){if(!_.has(visited,v)){dfs(v)}});return results}},{"../lodash":75}],70:[function(require,module,exports){var _=require("../lodash");module.exports=topsort;topsort.CycleException=CycleException;function topsort(g){var visited={},stack={},results=[];function visit(node){if(_.has(stack,node)){throw new CycleException}if(!_.has(visited,node)){stack[node]=true;visited[node]=true;_.each(g.predecessors(node),visit);delete stack[node];results.push(node)}}_.each(g.sinks(),visit);if(_.size(visited)!==g.nodeCount()){throw new CycleException}return results}function CycleException(){}},{"../lodash":75}],71:[function(require,module,exports){var _=require("../lodash");module.exports=PriorityQueue;function PriorityQueue(){this._arr=[];this._keyIndices={}}PriorityQueue.prototype.size=function(){return this._arr.length};PriorityQueue.prototype.keys=function(){return this._arr.map(function(x){return x.key})};PriorityQueue.prototype.has=function(key){return _.has(this._keyIndices,key)};PriorityQueue.prototype.priority=function(key){var index=this._keyIndices[key];if(index!==undefined){return this._arr[index].priority}};PriorityQueue.prototype.min=function(){if(this.size()===0){throw new Error("Queue underflow")}return this._arr[0].key};PriorityQueue.prototype.add=function(key,priority){var keyIndices=this._keyIndices;key=String(key);if(!_.has(keyIndices,key)){var arr=this._arr;var index=arr.length;keyIndices[key]=index;arr.push({key:key,priority:priority});this._decrease(index);return true}return false};PriorityQueue.prototype.removeMin=function(){this._swap(0,this._arr.length-1);var min=this._arr.pop();delete this._keyIndices[min.key];this._heapify(0);return min.key};PriorityQueue.prototype.decrease=function(key,priority){var index=this._keyIndices[key];if(priority>this._arr[index].priority){throw new Error("New priority is greater than current priority. "+"Key: "+key+" Old: "+this._arr[index].priority+" New: "+priority)}this._arr[index].priority=priority;this._decrease(index)};PriorityQueue.prototype._heapify=function(i){var arr=this._arr;var l=2*i,r=l+1,largest=i;if(l<arr.length){largest=arr[l].priority<arr[largest].priority?l:largest;if(r<arr.length){largest=arr[r].priority<arr[largest].priority?r:largest}if(largest!==i){this._swap(i,largest);this._heapify(largest)}}};PriorityQueue.prototype._decrease=function(index){var arr=this._arr;var priority=arr[index].priority;var parent;while(index!==0){parent=index>>1;if(arr[parent].priority<priority){break}this._swap(index,parent);index=parent}};PriorityQueue.prototype._swap=function(i,j){var arr=this._arr;var keyIndices=this._keyIndices;var origArrI=arr[i];var origArrJ=arr[j];arr[i]=origArrJ;arr[j]=origArrI;keyIndices[origArrJ.key]=i;keyIndices[origArrI.key]=j}},{"../lodash":75}],72:[function(require,module,exports){"use strict";var _=require("./lodash");module.exports=Graph;var DEFAULT_EDGE_NAME="\x00",GRAPH_NODE="\x00",EDGE_KEY_DELIM="
";function Graph(opts){this._isDirected=_.has(opts,"directed")?opts.directed:true;this._isMultigraph=_.has(opts,"multigraph")?opts.multigraph:false;this._isCompound=_.has(opts,"compound")?opts.compound:false;this._label=undefined;this._defaultNodeLabelFn=_.constant(undefined);this._defaultEdgeLabelFn=_.constant(undefined);this._nodes={};if(this._isCompound){this._parent={};this._children={};this._children[GRAPH_NODE]={}}this._in={};this._preds={};this._out={};this._sucs={};this._edgeObjs={};this._edgeLabels={}}Graph.prototype._nodeCount=0;Graph.prototype._edgeCount=0;Graph.prototype.isDirected=function(){return this._isDirected};Graph.prototype.isMultigraph=function(){return this._isMultigraph};Graph.prototype.isCompound=function(){return this._isCompound};Graph.prototype.setGraph=function(label){this._label=label;return this};Graph.prototype.graph=function(){return this._label};Graph.prototype.setDefaultNodeLabel=function(newDefault){if(!_.isFunction(newDefault)){newDefault=_.constant(newDefault)}this._defaultNodeLabelFn=newDefault;return this};Graph.prototype.nodeCount=function(){return this._nodeCount};Graph.prototype.nodes=function(){return _.keys(this._nodes)};Graph.prototype.sources=function(){return _.filter(this.nodes(),function(v){return _.isEmpty(this._in[v])},this)};Graph.prototype.sinks=function(){return _.filter(this.nodes(),function(v){return _.isEmpty(this._out[v])},this)};Graph.prototype.setNodes=function(vs,value){var args=arguments;_.each(vs,function(v){if(args.length>1){this.setNode(v,value)}else{this.setNode(v)}},this);return this};Graph.prototype.setNode=function(v,value){if(_.has(this._nodes,v)){if(arguments.length>1){this._nodes[v]=value}return this}this._nodes[v]=arguments.length>1?value:this._defaultNodeLabelFn(v);if(this._isCompound){this._parent[v]=GRAPH_NODE;this._children[v]={};this._children[GRAPH_NODE][v]=true}this._in[v]={};this._preds[v]={};this._out[v]={};this._sucs[v]={};++this._nodeCount;return this};Graph.prototype.node=function(v){return this._nodes[v]};Graph.prototype.hasNode=function(v){return _.has(this._nodes,v)};Graph.prototype.removeNode=function(v){var self=this;if(_.has(this._nodes,v)){var removeEdge=function(e){self.removeEdge(self._edgeObjs[e])};delete this._nodes[v];if(this._isCompound){this._removeFromParentsChildList(v);delete this._parent[v];_.each(this.children(v),function(child){this.setParent(child)},this);delete this._children[v]}_.each(_.keys(this._in[v]),removeEdge);delete this._in[v];delete this._preds[v];_.each(_.keys(this._out[v]),removeEdge);delete this._out[v];delete this._sucs[v];--this._nodeCount}return this};Graph.prototype.setParent=function(v,parent){if(!this._isCompound){throw new Error("Cannot set parent in a non-compound graph")}if(_.isUndefined(parent)){parent=GRAPH_NODE}else{for(var ancestor=parent;!_.isUndefined(ancestor);ancestor=this.parent(ancestor)){if(ancestor===v){throw new Error("Setting "+parent+" as parent of "+v+" would create create a cycle")}}this.setNode(parent)}this.setNode(v);this._removeFromParentsChildList(v);this._parent[v]=parent;this._children[parent][v]=true;return this};Graph.prototype._removeFromParentsChildList=function(v){delete this._children[this._parent[v]][v]};Graph.prototype.parent=function(v){if(this._isCompound){var parent=this._parent[v];if(parent!==GRAPH_NODE){return parent}}};Graph.prototype.children=function(v){if(_.isUndefined(v)){v=GRAPH_NODE}if(this._isCompound){var children=this._children[v];if(children){return _.keys(children)}}else if(v===GRAPH_NODE){return this.nodes()}else if(this.hasNode(v)){return[]}};Graph.prototype.predecessors=function(v){var predsV=this._preds[v];if(predsV){return 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k","Ú":"Uacute","ú":"uacute","↟":"Uarr","⥉":"Uarrocir","Ў":"Ubrcy","ў":"ubrcy","Ŭ":"Ubreve","ŭ":"ubreve","Û":"Ucirc","û":"ucirc","У":"Ucy","у":"ucy","⇅":"udarr","Ű":"Udblac","ű":"udblac","⥮":"udhar","⥾":"ufisht","𝔘":"Ufr","𝔲":"ufr","Ù":"Ugrave","ù":"ugrave","⥣":"uHar","▀":"uhblk","⌜":"ulcorn","⌏":"ulcrop","◸":"ultri","Ū":"Umacr","ū":"umacr","⏟":"UnderBrace","⏝":"UnderParenthesis","⊎":"uplus","Ų":"Uogon","ų":"uogon","𝕌":"Uopf","𝕦":"uopf","⤒":"UpArrowBar","↕":"varr","υ":"upsi","ϒ":"Upsi","Υ":"Upsilon","⇈":"uuarr","⌝":"urcorn","⌎":"urcrop","Ů":"Uring","ů":"uring","◹":"urtri","𝒰":"Uscr","𝓊":"uscr","⋰":"utdot","Ũ":"Utilde","ũ":"utilde","Ü":"Uuml","ü":"uuml","⦧":"uwangle","⦜":"vangrt","⊊︀":"vsubne","⫋︀":"vsubnE","⊋︀":"vsupne","⫌︀":"vsupnE","⫨":"vBar","⫫":"Vbar","⫩":"vBarv","В":"Vcy","в":"vcy","⊩":"Vdash","⊫":"VDash","⫦":"Vdashl","⊻":"veebar","≚":"veeeq","⋮":"vellip","|":"vert","‖":"Vert","❘":"VerticalSeparator","≀":"wr","𝔙":"Vfr","𝔳":"vfr","𝕍":"Vopf","𝕧":"vopf","𝒱":"Vscr","𝓋":"vscr","⊪":"Vvdash","⦚":"vzigzag","Ŵ":"Wcirc","ŵ":"wcirc","⩟":"wedbar","≙":"wedgeq","℘":"wp","𝔚":"Wfr","𝔴":"wfr","𝕎":"Wopf","𝕨":"wopf","𝒲":"Wscr","𝓌":"wscr","𝔛":"Xfr","𝔵":"xfr","Ξ":"Xi","ξ":"xi","⋻":"xnis","𝕏":"Xopf","𝕩":"xopf","𝒳":"Xscr","𝓍":"xscr","Ý":"Yacute","ý":"yacute","Я":"YAcy","я":"yacy","Ŷ":"Ycirc","ŷ":"ycirc","Ы":"Ycy","ы":"ycy","¥":"yen","𝔜":"Yfr","𝔶":"yfr","Ї":"YIcy","ї":"yicy","𝕐":"Yopf","𝕪":"yopf","𝒴":"Yscr","𝓎":"yscr","Ю":"YUcy","ю":"yucy","ÿ":"yuml","Ÿ":"Yuml","Ź":"Zacute","ź":"zacute","Ž":"Zcaron","ž":"zcaron","З":"Zcy","з":"zcy","Ż":"Zdot","ż":"zdot","ℨ":"Zfr","Ζ":"Zeta","ζ":"zeta","𝔷":"zfr","Ж":"ZHcy","ж":"zhcy","⇝":"zigrarr","𝕫":"zopf","𝒵":"Zscr","𝓏":"zscr","‍":"zwj","‌":"zwnj"},h=/["&'<>`]/g,d={'"':"&quot;","&":"&amp;","'":"&#x27;","<":"&lt;",">":"&gt;","`":"&#x60;"},f=/&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/,g=/[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/,m=/&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|iacute|Uacute|plusmn|otilde|Otilde|Agrave|agrave|yacute|Yacute|oslash|Oslash|Atilde|atilde|brvbar|Ccedil|ccedil|ograve|curren|divide|Eacute|eacute|Ograve|oacute|Egrave|egrave|ugrave|frac12|frac14|frac34|Ugrave|Oacute|Iacute|ntilde|Ntilde|uacute|middot|Igrave|igrave|iquest|aacute|laquo|THORN|micro|iexcl|icirc|Icirc|Acirc|ucirc|ecirc|Ocirc|ocirc|Ecirc|Ucirc|aring|Aring|aelig|AElig|acute|pound|raquo|acirc|times|thorn|szlig|cedil|COPY|Auml|ordf|ordm|uuml|macr|Uuml|auml|Ouml|ouml|para|nbsp|Euml|quot|QUOT|euml|yuml|cent|sect|copy|sup1|sup2|sup3|Iuml|iuml|shy|eth|reg|not|yen|amp|AMP|REG|uml|ETH|deg|gt|GT|LT|lt)([=a-zA-Z0-9])?/g,y={Aacute:"Á",aacute:"á",Abreve:"Ă",abreve:"ă",ac:"∾",acd:"∿",acE:"∾̳",Acirc:"Â",acirc:"â",acute:"´",Acy:"А",acy:"а",AElig:"Æ",aelig:"æ",af:"⁡",Afr:"𝔄",afr:"𝔞",Agrave:"À",agrave:"à",alefsym:"ℵ",aleph:"ℵ",Alpha:"Α",alpha:"α",Amacr:"Ā",amacr:"ā",amalg:"⨿",amp:"&",AMP:"&",andand:"⩕",And:"⩓",and:"∧",andd:"⩜",andslope:"⩘",andv:"⩚",ang:"∠",ange:"⦤",angle:"∠",angmsdaa:"⦨",angmsdab:"⦩",angmsdac:"⦪",angmsdad:"⦫",angmsdae:"⦬",angmsdaf:"⦭",angmsdag:"⦮",angmsdah:"⦯",angmsd:"∡",angrt:"∟",angrtvb:"⊾",angrtvbd:"⦝",angsph:"∢",angst:"Å",angzarr:"⍼",Aogon:"Ą",aogon:"ą",Aopf:"𝔸",aopf:"𝕒",apacir:"⩯",ap:"≈",apE:"⩰",ape:"≊",apid:"≋",apos:"'",ApplyFunction:"⁡",approx:"≈",approxeq:"≊",Aring:"Å",aring:"å",Ascr:"𝒜",ascr:"𝒶",Assign:"≔",ast:"*",asymp:"≈",asympeq:"≍",Atilde:"Ã",atilde:"ã",Auml:"Ä",auml:"ä",awconint:"∳",awint:"⨑",backcong:"≌",backepsilon:"϶",backprime:"‵",backsim:"∽",backsimeq:"⋍",Backslash:"∖",Barv:"⫧",barvee:"⊽",barwed:"⌅",Barwed:"⌆",barwedge:"⌅",bbrk:"⎵",bbrktbrk:"⎶",bcong:"≌",Bcy:"Б",bcy:"б",bdquo:"„",becaus:"∵",because:"∵",Because:"∵",bemptyv:"⦰",bepsi:"϶",bernou:"ℬ",Bernoullis:"ℬ",Beta:"Β",beta:"β",beth:"ℶ",between:"≬",Bfr:"𝔅",bfr:"𝔟",bigcap:"⋂",bigcirc:"◯",bigcup:"⋃",bigodot:"⨀",bigoplus:"⨁",bigotimes:"⨂",bigsqcup:"⨆",bigstar:"★",bigtriangledown:"▽",bigtriangleup:"△",biguplus:"⨄",bigvee:"⋁",bigwedge:"⋀",bkarow:"⤍",blacklozenge:"⧫",blacksquare:"▪",blacktriangle:"▴",blacktriangledown:"▾",blacktriangleleft:"◂",blacktriangleright:"▸",blank:"␣",blk12:"▒",blk14:"░",blk34:"▓",block:"█",bne:"=⃥",bnequiv:"≡⃥",bNot:"⫭",bnot:"⌐",Bopf:"𝔹",bopf:"𝕓",bot:"⊥",bottom:"⊥",bowtie:"⋈",boxbox:"⧉",boxdl:"┐",boxdL:"╕",boxDl:"╖",boxDL:"╗",boxdr:"┌",boxdR:"╒",boxDr:"╓",boxDR:"╔",boxh:"─",boxH:"═",boxhd:"┬",boxHd:"╤",boxhD:"╥",boxHD:"╦",boxhu:"┴",boxHu:"╧",boxhU:"╨",boxHU:"╩",boxminus:"⊟",boxplus:"⊞",boxtimes:"⊠",boxul:"┘",boxuL:"╛",boxUl:"╜",boxUL:"╝",boxur:"└",boxuR:"╘",boxUr:"╙",boxUR:"╚",boxv:"│",boxV:"║",boxvh:"┼",boxvH:"╪",boxVh:"╫",boxVH:"╬",boxvl:"┤",boxvL:"╡",boxVl:"╢",boxVL:"╣",boxvr:"├",boxvR:"╞",boxVr:"╟",boxVR:"╠",bprime:"‵",breve:"˘",Breve:"˘",brvbar:"¦",bscr:"𝒷",Bscr:"ℬ",bsemi:"⁏",bsim:"∽",bsime:"⋍",bsolb:"⧅",bsol:"\\",bsolhsub:"⟈",bull:"•",bullet:"•",bump:"≎",bumpE:"⪮",bumpe:"≏",Bumpeq:"≎",bumpeq:"≏",Cacute:"Ć",cacute:"ć",capand:"⩄",capbrcup:"⩉",capcap:"⩋",cap:"∩",Cap:"⋒",capcup:"⩇",capdot:"⩀",CapitalDifferentialD:"ⅅ",caps:"∩︀",caret:"⁁",caron:"ˇ",Cayleys:"ℭ",ccaps:"⩍",Ccaron:"Č",ccaron:"č",Ccedil:"Ç",ccedil:"ç",Ccirc:"Ĉ",ccirc:"ĉ",Cconint:"∰",ccups:"⩌",ccupssm:"⩐",Cdot:"Ċ",cdot:"ċ",cedil:"¸",Cedilla:"¸",cemptyv:"⦲",cent:"¢",centerdot:"·",CenterDot:"·",cfr:"𝔠",Cfr:"ℭ",CHcy:"Ч",chcy:"ч",check:"✓",checkmark:"✓",Chi:"Χ",chi:"χ",circ:"ˆ",circeq:"≗",circlearrowleft:"↺",circlearrowright:"↻",circledast:"⊛",circledcirc:"⊚",circleddash:"⊝",CircleDot:"⊙",circledR:"®",circledS:"Ⓢ",CircleMinus:"⊖",CirclePlus:"⊕",CircleTimes:"⊗",cir:"○",cirE:"⧃",cire:"≗",cirfnint:"⨐",cirmid:"⫯",cirscir:"⧂",ClockwiseContourIntegral:"∲",CloseCurlyDoubleQuote:"”",CloseCurlyQuote:"’",clubs:"♣",clubsuit:"♣",colon:":",Colon:"∷",Colone:"⩴",colone:"≔",coloneq:"≔",comma:",",commat:"@",comp:"∁",compfn:"∘",complement:"∁",complexes:"ℂ",cong:"≅",congdot:"⩭",Congruent:"≡",conint:"∮",Conint:"∯",ContourIntegral:"∮",copf:"𝕔",Copf:"ℂ",coprod:"∐",Coproduct:"∐",copy:"©",COPY:"©",copysr:"℗",CounterClockwiseContourIntegral:"∳",crarr:"↵",cross:"✗",Cross:"⨯",Cscr:"𝒞",cscr:"𝒸",csub:"⫏",csube:"⫑",csup:"⫐",csupe:"⫒",ctdot:"⋯",cudarrl:"⤸",cudarrr:"⤵",cuepr:"⋞",cuesc:"⋟",cularr:"↶",cularrp:"⤽",cupbrcap:"⩈",cupcap:"⩆",CupCap:"≍",cup:"∪",Cup:"⋓",cupcup:"⩊",cupdot:"⊍",cupor:"⩅",cups:"∪︀",curarr:"↷",curarrm:"⤼",curlyeqprec:"⋞",curlyeqsucc:"⋟",curlyvee:"⋎",curlywedge:"⋏",curren:"¤",curvearrowleft:"↶",curvearrowright:"↷",cuvee:"⋎",cuwed:"⋏",cwconint:"∲",cwint:"∱",cylcty:"⌭",dagger:"†",Dagger:"‡",daleth:"ℸ",darr:"↓",Darr:"↡",dArr:"⇓",dash:"‐",Dashv:"⫤",dashv:"⊣",dbkarow:"⤏",dblac:"˝",Dcaron:"Ď",dcaron:"ď",Dcy:"Д",dcy:"д",ddagger:"‡",ddarr:"⇊",DD:"ⅅ",dd:"ⅆ",DDotrahd:"⤑",ddotseq:"⩷",deg:"°",Del:"∇",Delta:"Δ",delta:"δ",demptyv:"⦱",dfisht:"⥿",Dfr:"𝔇",dfr:"𝔡",dHar:"⥥",dharl:"⇃",dharr:"⇂",DiacriticalAcute:"´",DiacriticalDot:"˙",DiacriticalDoubleAcute:"˝",DiacriticalGrave:"`",DiacriticalTilde:"˜",diam:"⋄",diamond:"⋄",Diamond:"⋄",diamondsuit:"♦",diams:"♦",die:"¨",DifferentialD:"ⅆ",digamma:"ϝ",disin:"⋲",div:"÷",divide:"÷",divideontimes:"⋇",divonx:"⋇",DJcy:"Ђ",djcy:"ђ",dlcorn:"⌞",dlcrop:"⌍",dollar:"$",Dopf:"𝔻",dopf:"𝕕",Dot:"¨",dot:"˙",DotDot:"⃜",doteq:"≐",doteqdot:"≑",DotEqual:"≐",dotminus:"∸",dotplus:"∔",dotsquare:"⊡",doublebarwedge:"⌆",DoubleContourIntegral:"∯",DoubleDot:"¨",DoubleDownArrow:"⇓",DoubleLeftArrow:"⇐",DoubleLeftRightArrow:"⇔",DoubleLeftTee:"⫤",DoubleLongLeftArrow:"⟸",DoubleLongLeftRightArrow:"⟺",DoubleLongRightArrow:"⟹",DoubleRightArrow:"⇒",DoubleRightTee:"⊨",DoubleUpArrow:"⇑",DoubleUpDownArrow:"⇕",DoubleVerticalBar:"∥",DownArrowBar:"⤓",downarrow:"↓",DownArrow:"↓",Downarrow:"⇓",DownArrowUpArrow:"⇵",DownBreve:"̑",downdownarrows:"⇊",downharpoonleft:"⇃",downharpoonright:"⇂",DownLeftRightVector:"⥐",DownLeftTeeVector:"⥞",DownLeftVectorBar:"⥖",DownLeftVector:"↽",DownRightTeeVector:"⥟",DownRightVectorBar:"⥗",DownRightVector:"⇁",DownTeeArrow:"↧",DownTee:"⊤",drbkarow:"⤐",drcorn:"⌟",drcrop:"⌌",Dscr:"𝒟",dscr:"𝒹",DScy:"Ѕ",dscy:"ѕ",dsol:"⧶",Dstrok:"Đ",dstrok:"đ",dtdot:"⋱",dtri:"▿",dtrif:"▾",duarr:"⇵",duhar:"⥯",dwangle:"⦦",DZcy:"Џ",dzcy:"џ",dzigrarr:"⟿",Eacute:"É",eacute:"é",easter:"⩮",Ecaron:"Ě",ecaron:"ě",Ecirc:"Ê",ecirc:"ê",ecir:"≖",ecolon:"≕",Ecy:"Э",ecy:"э",eDDot:"⩷",Edot:"Ė",edot:"ė",eDot:"≑",ee:"ⅇ",efDot:"≒",Efr:"𝔈",efr:"𝔢",eg:"⪚",Egrave:"È",egrave:"è",egs:"⪖",egsdot:"⪘",el:"⪙",Element:"∈",elinters:"⏧",ell:"ℓ",els:"⪕",elsdot:"⪗",Emacr:"Ē",emacr:"ē",empty:"∅",emptyset:"∅",EmptySmallSquare:"◻",emptyv:"∅",EmptyVerySmallSquare:"▫",emsp13:" ",emsp14:" ",emsp:" ",ENG:"Ŋ",eng:"ŋ",ensp:" ",Eogon:"Ę",eogon:"ę",Eopf:"𝔼",eopf:"𝕖",epar:"⋕",eparsl:"⧣",eplus:"⩱",epsi:"ε",Epsilon:"Ε",epsilon:"ε",epsiv:"ϵ",eqcirc:"≖",eqcolon:"≕",eqsim:"≂",eqslantgtr:"⪖",eqslantless:"⪕",Equal:"⩵",equals:"=",EqualTilde:"≂",equest:"≟",Equilibrium:"⇌",equiv:"≡",equivDD:"⩸",eqvparsl:"⧥",erarr:"⥱",erDot:"≓",escr:"ℯ",Escr:"ℰ",esdot:"≐",Esim:"⩳",esim:"≂",Eta:"Η",eta:"η",ETH:"Ð",eth:"ð",Euml:"Ë",euml:"ë",euro:"€",excl:"!",exist:"∃",Exists:"∃",expectation:"ℰ",exponentiale:"ⅇ",ExponentialE:"ⅇ",fallingdotseq:"≒",Fcy:"Ф",fcy:"ф",female:"♀",ffilig:"ffi",fflig:"ff",ffllig:"ffl",Ffr:"𝔉",ffr:"𝔣",filig:"fi",FilledSmallSquare:"◼",FilledVerySmallSquare:"▪",fjlig:"fj",flat:"♭",fllig:"fl",fltns:"▱",fnof:"ƒ",Fopf:"𝔽",fopf:"𝕗",forall:"∀",ForAll:"∀",fork:"⋔",forkv:"⫙",Fouriertrf:"ℱ",fpartint:"⨍",frac12:"½",frac13:"⅓",frac14:"¼",frac15:"⅕",frac16:"⅙",frac18:"⅛",frac23:"⅔",frac25:"⅖",frac34:"¾",frac35:"⅗",frac38:"⅜",frac45:"⅘",frac56:"⅚",frac58:"⅝",frac78:"⅞",frasl:"⁄",frown:"⌢",fscr:"𝒻",Fscr:"ℱ",gacute:"ǵ",Gamma:"Γ",gamma:"γ",Gammad:"Ϝ",gammad:"ϝ",gap:"⪆",Gbreve:"Ğ",gbreve:"ğ",Gcedil:"Ģ",Gcirc:"Ĝ",gcirc:"ĝ",Gcy:"Г",gcy:"г",Gdot:"Ġ",gdot:"ġ",ge:"≥",gE:"≧",gEl:"⪌",gel:"⋛",geq:"≥",geqq:"≧",geqslant:"⩾",gescc:"⪩",ges:"⩾",gesdot:"⪀",gesdoto:"⪂",gesdotol:"⪄",gesl:"⋛︀",gesles:"⪔",Gfr:"𝔊",gfr:"𝔤",gg:"≫",Gg:"⋙",ggg:"⋙",gimel:"ℷ",GJcy:"Ѓ",gjcy:"ѓ",gla:"⪥",gl:"≷",glE:"⪒",glj:"⪤",gnap:"⪊",gnapprox:"⪊",gne:"⪈",gnE:"≩",gneq:"⪈",gneqq:"≩",gnsim:"⋧",Gopf:"𝔾",gopf:"𝕘",grave:"`",GreaterEqual:"≥",GreaterEqualLess:"⋛",GreaterFullEqual:"≧",GreaterGreater:"⪢",GreaterLess:"≷",GreaterSlantEqual:"⩾",GreaterTilde:"≳",Gscr:"𝒢",gscr:"ℊ",gsim:"≳",gsime:"⪎",gsiml:"⪐",gtcc:"⪧",gtcir:"⩺",gt:">",GT:">",Gt:"≫",gtdot:"⋗",gtlPar:"⦕",gtquest:"⩼",gtrapprox:"⪆",gtrarr:"⥸",gtrdot:"⋗",gtreqless:"⋛",gtreqqless:"⪌",gtrless:"≷",gtrsim:"≳",gvertneqq:"≩︀",gvnE:"≩︀",Hacek:"ˇ",hairsp:" ",half:"½",hamilt:"ℋ",HARDcy:"Ъ",hardcy:"ъ",harrcir:"⥈",harr:"↔",hArr:"⇔",harrw:"↭",Hat:"^",hbar:"ℏ",Hcirc:"Ĥ",hcirc:"ĥ",hearts:"♥",heartsuit:"♥",hellip:"…",hercon:"⊹",hfr:"𝔥",Hfr:"ℌ",HilbertSpace:"ℋ",hksearow:"⤥",hkswarow:"⤦",hoarr:"⇿",homtht:"∻",hookleftarrow:"↩",hookrightarrow:"↪",hopf:"𝕙",Hopf:"ℍ",horbar:"―",HorizontalLine:"─",hscr:"𝒽",Hscr:"ℋ",hslash:"ℏ",Hstrok:"Ħ",hstrok:"ħ",HumpDownHump:"≎",HumpEqual:"≏",hybull:"⁃",hyphen:"‐",Iacute:"Í",iacute:"í",ic:"⁣",Icirc:"Î",icirc:"î",Icy:"И",icy:"и",Idot:"İ",IEcy:"Е",iecy:"е",iexcl:"¡",iff:"⇔",ifr:"𝔦",Ifr:"ℑ",Igrave:"Ì",igrave:"ì",ii:"ⅈ",iiiint:"⨌",iiint:"∭",iinfin:"⧜",iiota:"℩",IJlig:"IJ",ijlig:"ij",Imacr:"Ī",imacr:"ī",image:"ℑ",ImaginaryI:"ⅈ",imagline:"ℐ",imagpart:"ℑ",imath:"ı",Im:"ℑ",imof:"⊷",imped:"Ƶ",Implies:"⇒",incare:"℅","in":"∈",infin:"∞",infintie:"⧝",inodot:"ı",intcal:"⊺","int":"∫",Int:"∬",integers:"ℤ",Integral:"∫",intercal:"⊺",Intersection:"⋂",intlarhk:"⨗",intprod:"⨼",InvisibleComma:"⁣",InvisibleTimes:"⁢",IOcy:"Ё",iocy:"ё",Iogon:"Į",iogon:"į",Iopf:"𝕀",iopf:"𝕚",Iota:"Ι",iota:"ι",iprod:"⨼",iquest:"¿",iscr:"𝒾",Iscr:"ℐ",isin:"∈",isindot:"⋵",isinE:"⋹",isins:"⋴",isinsv:"⋳",isinv:"∈",it:"⁢",Itilde:"Ĩ",itilde:"ĩ",Iukcy:"І",iukcy:"і",Iuml:"Ï",iuml:"ï",Jcirc:"Ĵ",jcirc:"ĵ",Jcy:"Й",jcy:"й",Jfr:"𝔍",jfr:"𝔧",jmath:"ȷ",Jopf:"𝕁",jopf:"𝕛",Jscr:"𝒥",jscr:"𝒿",Jsercy:"Ј",jsercy:"ј",Jukcy:"Є",jukcy:"є",Kappa:"Κ",kappa:"κ",kappav:"ϰ",Kcedil:"Ķ",kcedil:"ķ",Kcy:"К",kcy:"к",Kfr:"𝔎",kfr:"𝔨",kgreen:"ĸ",KHcy:"Х",khcy:"х",KJcy:"Ќ",kjcy:"ќ",Kopf:"𝕂",kopf:"𝕜",Kscr:"𝒦",kscr:"𝓀",lAarr:"⇚",Lacute:"Ĺ",lacute:"ĺ",laemptyv:"⦴",lagran:"ℒ",Lambda:"Λ",lambda:"λ",lang:"⟨",Lang:"⟪",langd:"⦑",langle:"⟨",lap:"⪅",Laplacetrf:"ℒ",laquo:"«",larrb:"⇤",larrbfs:"⤟",larr:"←",Larr:"↞",lArr:"⇐",larrfs:"⤝",larrhk:"↩",larrlp:"↫",larrpl:"⤹",larrsim:"⥳",larrtl:"↢",latail:"⤙",lAtail:"⤛",lat:"⪫",late:"⪭",lates:"⪭︀",lbarr:"⤌",lBarr:"⤎",lbbrk:"❲",lbrace:"{",lbrack:"[",lbrke:"⦋",lbrksld:"⦏",lbrkslu:"⦍",Lcaron:"Ľ",lcaron:"ľ",Lcedil:"Ļ",lcedil:"ļ",lceil:"⌈",lcub:"{",Lcy:"Л",lcy:"л",ldca:"⤶",ldquo:"“",ldquor:"„",ldrdhar:"⥧",ldrushar:"⥋",ldsh:"↲",le:"≤",lE:"≦",LeftAngleBracket:"⟨",LeftArrowBar:"⇤",leftarrow:"←",LeftArrow:"←",Leftarrow:"⇐",LeftArrowRightArrow:"⇆",leftarrowtail:"↢",LeftCeiling:"⌈",LeftDoubleBracket:"⟦",LeftDownTeeVector:"⥡",LeftDownVectorBar:"⥙",LeftDownVector:"⇃",LeftFloor:"⌊",leftharpoondown:"↽",leftharpoonup:"↼",leftleftarrows:"⇇",leftrightarrow:"↔",LeftRightArrow:"↔",Leftrightarrow:"⇔",leftrightarrows:"⇆",leftrightharpoons:"⇋",leftrightsquigarrow:"↭",LeftRightVector:"⥎",LeftTeeArrow:"↤",LeftTee:"⊣",LeftTeeVector:"⥚",leftthreetimes:"⋋",LeftTriangleBar:"⧏",LeftTriangle:"⊲",LeftTriangleEqual:"⊴",LeftUpDownVector:"⥑",LeftUpTeeVector:"⥠",LeftUpVectorBar:"⥘",LeftUpVector:"↿",LeftVectorBar:"⥒",LeftVector:"↼",lEg:"⪋",leg:"⋚",leq:"≤",leqq:"≦",leqslant:"⩽",lescc:"⪨",les:"⩽",lesdot:"⩿",lesdoto:"⪁",lesdotor:"⪃",lesg:"⋚︀",lesges:"⪓",lessapprox:"⪅",lessdot:"⋖",lesseqgtr:"⋚",lesseqqgtr:"⪋",LessEqualGreater:"⋚",LessFullEqual:"≦",LessGreater:"≶",lessgtr:"≶",LessLess:"⪡",lesssim:"≲",LessSlantEqual:"⩽",LessTilde:"≲",lfisht:"⥼",lfloor:"⌊",Lfr:"𝔏",lfr:"𝔩",lg:"≶",lgE:"⪑",lHar:"⥢",lhard:"↽",lharu:"↼",lharul:"⥪",lhblk:"▄",LJcy:"Љ",ljcy:"љ",llarr:"⇇",ll:"≪",Ll:"⋘",llcorner:"⌞",Lleftarrow:"⇚",llhard:"⥫",lltri:"◺",Lmidot:"Ŀ",lmidot:"ŀ",lmoustache:"⎰",lmoust:"⎰",lnap:"⪉",lnapprox:"⪉",lne:"⪇",lnE:"≨",lneq:"⪇",lneqq:"≨",lnsim:"⋦",loang:"⟬",loarr:"⇽",lobrk:"⟦",longleftarrow:"⟵",LongLeftArrow:"⟵",Longleftarrow:"⟸",longleftrightarrow:"⟷",LongLeftRightArrow:"⟷",Longleftrightarrow:"⟺",longmapsto:"⟼",longrightarrow:"⟶",LongRightArrow:"⟶",Longrightarrow:"⟹",looparrowleft:"↫",looparrowright:"↬",lopar:"⦅",Lopf:"𝕃",lopf:"𝕝",loplus:"⨭",lotimes:"⨴",lowast:"∗",lowbar:"_",LowerLeftArrow:"↙",LowerRightArrow:"↘",loz:"◊",lozenge:"◊",lozf:"⧫",lpar:"(",lparlt:"⦓",lrarr:"⇆",lrcorner:"⌟",lrhar:"⇋",lrhard:"⥭",lrm:"‎",lrtri:"⊿",lsaquo:"‹",lscr:"𝓁",Lscr:"ℒ",lsh:"↰",Lsh:"↰",lsim:"≲",lsime:"⪍",lsimg:"⪏",lsqb:"[",lsquo:"‘",lsquor:"‚",Lstrok:"Ł",lstrok:"ł",ltcc:"⪦",ltcir:"⩹",lt:"<",LT:"<",Lt:"≪",ltdot:"⋖",lthree:"⋋",ltimes:"⋉",ltlarr:"⥶",ltquest:"⩻",ltri:"◃",ltrie:"⊴",ltrif:"◂",ltrPar:"⦖",lurdshar:"⥊",luruhar:"⥦",lvertneqq:"≨︀",lvnE:"≨︀",macr:"¯",male:"♂",malt:"✠",maltese:"✠",Map:"⤅",map:"↦",mapsto:"↦",mapstodown:"↧",mapstoleft:"↤",mapstoup:"↥",marker:"▮",mcomma:"⨩",Mcy:"М",mcy:"м",mdash:"—",mDDot:"∺",measuredangle:"∡",MediumSpace:" ",Mellintrf:"ℳ",Mfr:"𝔐",mfr:"𝔪",mho:"℧",micro:"µ",midast:"*",midcir:"⫰",mid:"∣",middot:"·",minusb:"⊟",minus:"−",minusd:"∸",minusdu:"⨪",MinusPlus:"∓",mlcp:"⫛",mldr:"…",mnplus:"∓",models:"⊧",Mopf:"𝕄",mopf:"𝕞",mp:"∓",mscr:"𝓂",Mscr:"ℳ",mstpos:"∾",Mu:"Μ",mu:"μ",multimap:"⊸",mumap:"⊸",nabla:"∇",Nacute:"Ń",nacute:"ń",nang:"∠⃒",nap:"≉",napE:"⩰̸",napid:"≋̸",napos:"ʼn",napprox:"≉",natural:"♮",naturals:"ℕ",natur:"♮",nbsp:" ",nbump:"≎̸",nbumpe:"≏̸",ncap:"⩃",Ncaron:"Ň",ncaron:"ň",Ncedil:"Ņ",ncedil:"ņ",ncong:"≇",ncongdot:"⩭̸",ncup:"⩂",Ncy:"Н",ncy:"н",ndash:"–",nearhk:"⤤",nearr:"↗",neArr:"⇗",nearrow:"↗",ne:"≠",nedot:"≐̸",NegativeMediumSpace:"​",NegativeThickSpace:"​",NegativeThinSpace:"​",NegativeVeryThinSpace:"​",nequiv:"≢",nesear:"⤨",nesim:"≂̸",NestedGreaterGreater:"≫",NestedLessLess:"≪",NewLine:"\n",nexist:"∄",nexists:"∄",Nfr:"𝔑",nfr:"𝔫",ngE:"≧̸",nge:"≱",ngeq:"≱",ngeqq:"≧̸",ngeqslant:"⩾̸",nges:"⩾̸",nGg:"⋙̸",ngsim:"≵",nGt:"≫⃒",ngt:"≯",ngtr:"≯",nGtv:"≫̸",nharr:"↮",nhArr:"⇎",nhpar:"⫲",ni:"∋",nis:"⋼",nisd:"⋺",niv:"∋",NJcy:"Њ",njcy:"њ",nlarr:"↚",nlArr:"⇍",nldr:"‥",nlE:"≦̸",nle:"≰",nleftarrow:"↚",nLeftarrow:"⇍",nleftrightarrow:"↮",nLeftrightarrow:"⇎",nleq:"≰",nleqq:"≦̸",nleqslant:"⩽̸",nles:"⩽̸",nless:"≮",nLl:"⋘̸",nlsim:"≴",nLt:"≪⃒",nlt:"≮",nltri:"⋪",nltrie:"⋬",nLtv:"≪̸",nmid:"∤",NoBreak:"⁠",NonBreakingSpace:" ",nopf:"𝕟",Nopf:"ℕ",Not:"⫬",not:"¬",NotCongruent:"≢",NotCupCap:"≭",NotDoubleVerticalBar:"∦",NotElement:"∉",NotEqual:"≠",NotEqualTilde:"≂̸",NotExists:"∄",NotGreater:"≯",NotGreaterEqual:"≱",NotGreaterFullEqual:"≧̸",NotGreaterGreater:"≫̸",NotGreaterLess:"≹",NotGreaterSlantEqual:"⩾̸",NotGreaterTilde:"≵",NotHumpDownHump:"≎̸",NotHumpEqual:"≏̸",notin:"∉",notindot:"⋵̸",notinE:"⋹̸",notinva:"∉",notinvb:"⋷",notinvc:"⋶",NotLeftTriangleBar:"⧏̸",NotLeftTriangle:"⋪",NotLeftTriangleEqual:"⋬",NotLess:"≮",NotLessEqual:"≰",NotLessGreater:"≸",NotLessLess:"≪̸",NotLessSlantEqual:"⩽̸",NotLessTilde:"≴",NotNestedGreaterGreater:"⪢̸",NotNestedLessLess:"⪡̸",notni:"∌",notniva:"∌",notnivb:"⋾",notnivc:"⋽",NotPrecedes:"⊀",NotPrecedesEqual:"⪯̸",NotPrecedesSlantEqual:"⋠",NotReverseElement:"∌",NotRightTriangleBar:"⧐̸",NotRightTriangle:"⋫",NotRightTriangleEqual:"⋭",NotSquareSubset:"⊏̸",NotSquareSubsetEqual:"⋢",NotSquareSuperset:"⊐̸",NotSquareSupersetEqual:"⋣",NotSubset:"⊂⃒",NotSubsetEqual:"⊈",NotSucceeds:"⊁",NotSucceedsEqual:"⪰̸",NotSucceedsSlantEqual:"⋡",NotSucceedsTilde:"≿̸",NotSuperset:"⊃⃒",NotSupersetEqual:"⊉",NotTilde:"≁",NotTildeEqual:"≄",NotTildeFullEqual:"≇",NotTildeTilde:"≉",NotVerticalBar:"∤",nparallel:"∦",npar:"∦",nparsl:"⫽⃥",npart:"∂̸",npolint:"⨔",npr:"⊀",nprcue:"⋠",nprec:"⊀",npreceq:"⪯̸",npre:"⪯̸",nrarrc:"⤳̸",nrarr:"↛",nrArr:"⇏",nrarrw:"↝̸",nrightarrow:"↛",nRightarrow:"⇏",nrtri:"⋫",nrtrie:"⋭",nsc:"⊁",nsccue:"⋡",nsce:"⪰̸",Nscr:"𝒩",nscr:"𝓃",nshortmid:"∤",nshortparallel:"∦",nsim:"≁",nsime:"≄",nsimeq:"≄",nsmid:"∤",nspar:"∦",nsqsube:"⋢",nsqsupe:"⋣",nsub:"⊄",nsubE:"⫅̸",nsube:"⊈",nsubset:"⊂⃒",nsubseteq:"⊈",nsubseteqq:"⫅̸",nsucc:"⊁",nsucceq:"⪰̸",nsup:"⊅",nsupE:"⫆̸",nsupe:"⊉",nsupset:"⊃⃒",nsupseteq:"⊉",nsupseteqq:"⫆̸",ntgl:"≹",Ntilde:"Ñ",ntilde:"ñ",ntlg:"≸",ntriangleleft:"⋪",ntrianglelefteq:"⋬",ntriangleright:"⋫",ntrianglerighteq:"⋭",Nu:"Ν",nu:"ν",num:"#",numero:"№",numsp:" ",nvap:"≍⃒",nvdash:"⊬",nvDash:"⊭",nVdash:"⊮",nVDash:"⊯",nvge:"≥⃒",nvgt:">⃒",nvHarr:"⤄",nvinfin:"⧞",nvlArr:"⤂",nvle:"≤⃒",nvlt:"<⃒",nvltrie:"⊴⃒",nvrArr:"⤃",nvrtrie:"⊵⃒",nvsim:"∼⃒",nwarhk:"⤣",nwarr:"↖",nwArr:"⇖",nwarrow:"↖",nwnear:"⤧",Oacute:"Ó",oacute:"ó",oast:"⊛",Ocirc:"Ô",ocirc:"ô",ocir:"⊚",Ocy:"О",ocy:"о",odash:"⊝",Odblac:"Ő",odblac:"ő",odiv:"⨸",odot:"⊙",odsold:"⦼",OElig:"Œ",oelig:"œ",ofcir:"⦿",Ofr:"𝔒",ofr:"𝔬",ogon:"˛",Ograve:"Ò",ograve:"ò",ogt:"⧁",ohbar:"⦵",ohm:"Ω",oint:"∮",olarr:"↺",olcir:"⦾",olcross:"⦻",oline:"‾",olt:"⧀",Omacr:"Ō",omacr:"ō",Omega:"Ω",omega:"ω",Omicron:"Ο",omicron:"ο",omid:"⦶",ominus:"⊖",Oopf:"𝕆",oopf:"𝕠",opar:"⦷",OpenCurlyDoubleQuote:"“",OpenCurlyQuote:"‘",operp:"⦹",oplus:"⊕",orarr:"↻",Or:"⩔",or:"∨",ord:"⩝",order:"ℴ",orderof:"ℴ",ordf:"ª",ordm:"º",origof:"⊶",oror:"⩖",orslope:"⩗",orv:"⩛",oS:"Ⓢ",Oscr:"𝒪",oscr:"ℴ",Oslash:"Ø",oslash:"ø",osol:"⊘",Otilde:"Õ",otilde:"õ",otimesas:"⨶",Otimes:"⨷",otimes:"⊗",Ouml:"Ö",ouml:"ö",ovbar:"⌽",OverBar:"‾",OverBrace:"⏞",OverBracket:"⎴",OverParenthesis:"⏜",para:"¶",parallel:"∥",par:"∥",parsim:"⫳",parsl:"⫽",part:"∂",PartialD:"∂",Pcy:"П",pcy:"п",percnt:"%",period:".",permil:"‰",perp:"⊥",pertenk:"‱",Pfr:"𝔓",pfr:"𝔭",Phi:"Φ",phi:"φ",phiv:"ϕ",phmmat:"ℳ",phone:"☎",Pi:"Π",pi:"π",pitchfork:"⋔",piv:"ϖ",planck:"ℏ",planckh:"ℎ",plankv:"ℏ",plusacir:"⨣",plusb:"⊞",pluscir:"⨢",plus:"+",plusdo:"∔",plusdu:"⨥",pluse:"⩲",PlusMinus:"±",plusmn:"±",plussim:"⨦",plustwo:"⨧",pm:"±",Poincareplane:"ℌ",pointint:"⨕",popf:"𝕡",Popf:"ℙ",pound:"£",prap:"⪷",Pr:"⪻",pr:"≺",prcue:"≼",precapprox:"⪷",prec:"≺",preccurlyeq:"≼",Precedes:"≺",PrecedesEqual:"⪯",PrecedesSlantEqual:"≼",PrecedesTilde:"≾",preceq:"⪯",precnapprox:"⪹",precneqq:"⪵",precnsim:"⋨",pre:"⪯",prE:"⪳",precsim:"≾",prime:"′",Prime:"″",primes:"ℙ",prnap:"⪹",prnE:"⪵",prnsim:"⋨",prod:"∏",Product:"∏",profalar:"⌮",profline:"⌒",profsurf:"⌓",prop:"∝",Proportional:"∝",Proportion:"∷",propto:"∝",prsim:"≾",prurel:"⊰",Pscr:"𝒫",pscr:"𝓅",Psi:"Ψ",psi:"ψ",puncsp:" ",Qfr:"𝔔",qfr:"𝔮",qint:"⨌",qopf:"𝕢",Qopf:"ℚ",qprime:"⁗",Qscr:"𝒬",qscr:"𝓆",quaternions:"ℍ",quatint:"⨖",quest:"?",questeq:"≟",quot:'"',QUOT:'"',rAarr:"⇛",race:"∽̱",Racute:"Ŕ",racute:"ŕ",radic:"√",raemptyv:"⦳",rang:"⟩",Rang:"⟫",rangd:"⦒",range:"⦥",rangle:"⟩",raquo:"»",rarrap:"⥵",rarrb:"⇥",rarrbfs:"⤠",rarrc:"⤳",rarr:"→",Rarr:"↠",rArr:"⇒",rarrfs:"⤞",rarrhk:"↪",rarrlp:"↬",rarrpl:"⥅",rarrsim:"⥴",Rarrtl:"⤖",rarrtl:"↣",rarrw:"↝",ratail:"⤚",rAtail:"⤜",ratio:"∶",rationals:"ℚ",rbarr:"⤍",rBarr:"⤏",RBarr:"⤐",rbbrk:"❳",rbrace:"}",rbrack:"]",rbrke:"⦌",rbrksld:"⦎",rbrkslu:"⦐",Rcaron:"Ř",rcaron:"ř",Rcedil:"Ŗ",rcedil:"ŗ",rceil:"⌉",rcub:"}",Rcy:"Р",rcy:"р",rdca:"⤷",rdldhar:"⥩",rdquo:"”",rdquor:"”",rdsh:"↳",real:"ℜ",realine:"ℛ",realpart:"ℜ",reals:"ℝ",Re:"ℜ",rect:"▭",reg:"®",REG:"®",ReverseElement:"∋",ReverseEquilibrium:"⇋",ReverseUpEquilibrium:"⥯",rfisht:"⥽",rfloor:"⌋",rfr:"𝔯",Rfr:"ℜ",rHar:"⥤",rhard:"⇁",rharu:"⇀",rharul:"⥬",Rho:"Ρ",rho:"ρ",rhov:"ϱ",RightAngleBracket:"⟩",RightArrowBar:"⇥",rightarrow:"→",RightArrow:"→",Rightarrow:"⇒",RightArrowLeftArrow:"⇄",rightarrowtail:"↣",RightCeiling:"⌉",RightDoubleBracket:"⟧",RightDownTeeVector:"⥝",RightDownVectorBar:"⥕",RightDownVector:"⇂",RightFloor:"⌋",rightharpoondown:"⇁",rightharpoonup:"⇀",rightleftarrows:"⇄",rightleftharpoons:"⇌",rightrightarrows:"⇉",rightsquigarrow:"↝",RightTeeArrow:"↦",RightTee:"⊢",RightTeeVector:"⥛",rightthreetimes:"⋌",RightTriangleBar:"⧐",RightTriangle:"⊳",RightTriangleEqual:"⊵",RightUpDownVector:"⥏",RightUpTeeVector:"⥜",RightUpVectorBar:"⥔",RightUpVector:"↾",RightVectorBar:"⥓",RightVector:"⇀",ring:"˚",risingdotseq:"≓",rlarr:"⇄",rlhar:"⇌",rlm:"‏",rmoustache:"⎱",rmoust:"⎱",rnmid:"⫮",roang:"⟭",roarr:"⇾",robrk:"⟧",ropar:"⦆",ropf:"𝕣",Ropf:"ℝ",roplus:"⨮",rotimes:"⨵",RoundImplies:"⥰",rpar:")",rpargt:"⦔",rppolint:"⨒",rrarr:"⇉",Rrightarrow:"⇛",rsaquo:"›",rscr:"𝓇",Rscr:"ℛ",rsh:"↱",Rsh:"↱",rsqb:"]",rsquo:"’",rsquor:"’",rthree:"⋌",rtimes:"⋊",rtri:"▹",rtrie:"⊵",rtrif:"▸",rtriltri:"⧎",RuleDelayed:"⧴",ruluhar:"⥨",rx:"℞",Sacute:"Ś",sacute:"ś",sbquo:"‚",scap:"⪸",Scaron:"Š",scaron:"š",Sc:"⪼",sc:"≻",sccue:"≽",sce:"⪰",scE:"⪴",Scedil:"Ş",scedil:"ş",Scirc:"Ŝ",scirc:"ŝ",scnap:"⪺",scnE:"⪶",scnsim:"⋩",scpolint:"⨓",scsim:"≿",Scy:"С",scy:"с",sdotb:"⊡",sdot:"⋅",sdote:"⩦",searhk:"⤥",searr:"↘",seArr:"⇘",searrow:"↘",sect:"§",semi:";",seswar:"⤩",setminus:"∖",setmn:"∖",sext:"✶",Sfr:"𝔖",sfr:"𝔰",sfrown:"⌢",sharp:"♯",SHCHcy:"Щ",shchcy:"щ",SHcy:"Ш",shcy:"ш",ShortDownArrow:"↓",ShortLeftArrow:"←",shortmid:"∣",shortparallel:"∥",ShortRightArrow:"→",ShortUpArrow:"↑",shy:"­",Sigma:"Σ",sigma:"σ",sigmaf:"ς",sigmav:"ς",sim:"∼",simdot:"⩪",sime:"≃",simeq:"≃",simg:"⪞",simgE:"⪠",siml:"⪝",simlE:"⪟",simne:"≆",simplus:"⨤",simrarr:"⥲",slarr:"←",SmallCircle:"∘",smallsetminus:"∖",smashp:"⨳",smeparsl:"⧤",smid:"∣",smile:"⌣",smt:"⪪",smte:"⪬",smtes:"⪬︀",SOFTcy:"Ь",softcy:"ь",solbar:"⌿",solb:"⧄",sol:"/",Sopf:"𝕊",sopf:"𝕤",spades:"♠",spadesuit:"♠",spar:"∥",sqcap:"⊓",sqcaps:"⊓︀",sqcup:"⊔",sqcups:"⊔︀",Sqrt:"√",sqsub:"⊏",sqsube:"⊑",sqsubset:"⊏",sqsubseteq:"⊑",sqsup:"⊐",sqsupe:"⊒",sqsupset:"⊐",sqsupseteq:"⊒",square:"□",Square:"□",SquareIntersection:"⊓",SquareSubset:"⊏",SquareSubsetEqual:"⊑",SquareSuperset:"⊐",SquareSupersetEqual:"⊒",SquareUnion:"⊔",squarf:"▪",squ:"□",squf:"▪",srarr:"→",Sscr:"𝒮",sscr:"𝓈",ssetmn:"∖",ssmile:"⌣",sstarf:"⋆",Star:"⋆",star:"☆",starf:"★",straightepsilon:"ϵ",straightphi:"ϕ",strns:"¯",sub:"⊂",Sub:"⋐",subdot:"⪽",subE:"⫅",sube:"⊆",subedot:"⫃",submult:"⫁",subnE:"⫋",subne:"⊊",subplus:"⪿",subrarr:"⥹",subset:"⊂",Subset:"⋐",subseteq:"⊆",subseteqq:"⫅",SubsetEqual:"⊆",subsetneq:"⊊",subsetneqq:"⫋",subsim:"⫇",subsub:"⫕",subsup:"⫓",succapprox:"⪸",succ:"≻",succcurlyeq:"≽",Succeeds:"≻",SucceedsEqual:"⪰",SucceedsSlantEqual:"≽",SucceedsTilde:"≿",succeq:"⪰",succnapprox:"⪺",succneqq:"⪶",succnsim:"⋩",succsim:"≿",SuchThat:"∋",sum:"∑",Sum:"∑",sung:"♪",sup1:"¹",sup2:"²",sup3:"³",sup:"⊃",Sup:"⋑",supdot:"⪾",supdsub:"⫘",supE:"⫆",supe:"⊇",supedot:"⫄",Superset:"⊃",SupersetEqual:"⊇",suphsol:"⟉",suphsub:"⫗",suplarr:"⥻",supmult:"⫂",supnE:"⫌",supne:"⊋",supplus:"⫀",supset:"⊃",Supset:"⋑",supseteq:"⊇",supseteqq:"⫆",supsetneq:"⊋",supsetneqq:"⫌",supsim:"⫈",supsub:"⫔",supsup:"⫖",swarhk:"⤦",swarr:"↙",swArr:"⇙",swarrow:"↙",swnwar:"⤪",szlig:"ß",Tab:"	",target:"⌖",Tau:"Τ",tau:"τ",tbrk:"⎴",Tcaron:"Ť",tcaron:"ť",Tcedil:"Ţ",tcedil:"ţ",Tcy:"Т",tcy:"т",tdot:"⃛",telrec:"⌕",Tfr:"𝔗",tfr:"𝔱",there4:"∴",therefore:"∴",Therefore:"∴",Theta:"Θ",theta:"θ",thetasym:"ϑ",thetav:"ϑ",thickapprox:"≈",thicksim:"∼",ThickSpace:"  ",ThinSpace:" ",thinsp:" ",thkap:"≈",thksim:"∼",THORN:"Þ",thorn:"þ",tilde:"˜",Tilde:"∼",TildeEqual:"≃",TildeFullEqual:"≅",TildeTilde:"≈",timesbar:"⨱",timesb:"⊠",times:"×",timesd:"⨰",tint:"∭",toea:"⤨",topbot:"⌶",topcir:"⫱",top:"⊤",Topf:"𝕋",topf:"𝕥",topfork:"⫚",tosa:"⤩",tprime:"‴",trade:"™",TRADE:"™",triangle:"▵",triangledown:"▿",triangleleft:"◃",trianglelefteq:"⊴",triangleq:"≜",triangleright:"▹",trianglerighteq:"⊵",tridot:"◬",trie:"≜",triminus:"⨺",TripleDot:"⃛",triplus:"⨹",trisb:"⧍",tritime:"⨻",trpezium:"⏢",Tscr:"𝒯",tscr:"𝓉",TScy:"Ц",tscy:"ц",TSHcy:"Ћ",tshcy:"ћ",Tstrok:"Ŧ",tstrok:"ŧ",twixt:"≬",twoheadleftarrow:"↞",twoheadrightarr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window?window:{})},{"./graphDb":6,"./parser/flow":7,"./sequenceRenderer":10,"./utils":11,he:4}],6:[function(require,module,exports){var vertices={},edges=[],classes=[],direction,funs=[];exports.addVertex=function(r,e,t,u){"undefined"==typeof vertices[r]&&(vertices[r]={id:r,styles:[],classes:[]}),"undefined"!=typeof e&&(vertices[r].text=e),"undefined"!=typeof t&&(vertices[r].type=t),"undefined"!=typeof t&&(vertices[r].type=t),"undefined"!=typeof u&&null!==u&&u.forEach(function(e){vertices[r].styles.push(e)})},exports.addLink=function(r,e,t,u){var s={start:r,end:e,type:void 0,text:""},u=t.text;"undefined"!=typeof u&&(s.text=u),"undefined"!=typeof t&&(s.type=t.type),edges.push(s)},exports.updateLink=function(r,e){r.substr(1);edges[r].style=e},exports.addClass=function(r,e){"undefined"==typeof classes[r]&&(classes[r]={id:r,styles:[]}),"undefined"!=typeof e&&null!==e&&e.forEach(function(e){classes[r].styles.push(e)})},exports.setDirection=function(r){direction=r},exports.setClass=function(r,e){r.indexOf(",")>0?r.split(",").forEach(function(r){"undefined"!=typeof vertices[r]&&vertices[r].classes.push(e)}):"undefined"!=typeof vertices[r]&&vertices[r].classes.push(e)},exports.setClickEvent=function(id,functionName){id.indexOf(",")>0?id.split(",").forEach(function(id2){"undefined"!=typeof vertices[id2]&&funs.push(function(){var elem=document.getElementById(id2);null!==elem&&(elem.onclick=function(){eval(functionName+"('"+id2+"')")})})}):"undefined"!=typeof vertices[id]&&funs.push(function(){var elem=document.getElementById(id);null!==elem&&(elem.onclick=function(){eval(functionName+"('"+id+"')")})})},exports.bindFunctions=function(){funs.forEach(function(r){r()})},exports.getDirection=function(){return direction},exports.getVertices=function(){return vertices},exports.getEdges=function(){return edges},exports.getClasses=function(){return 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new Error(r);this.trace(r)},parse:function(r){function e(){var r;return r=f.lex()||h,"number"!=typeof r&&(r=t.symbols_[r]||r),r}var t=this,u=[0],s=[null],a=[],n=this.table,i="",o=0,c=0,l=0,p=2,h=1,d=a.slice.call(arguments,1),f=Object.create(this.lexer),g={yy:{}};for(var m in this.yy)Object.prototype.hasOwnProperty.call(this.yy,m)&&(g.yy[m]=this.yy[m]);f.setInput(r,g.yy),g.yy.lexer=f,g.yy.parser=this,"undefined"==typeof f.yylloc&&(f.yylloc={});var y=f.yylloc;a.push(y);var b=f.options&&f.options.ranges;this.parseError="function"==typeof g.yy.parseError?g.yy.parseError:Object.getPrototypeOf(this).parseError;for(var A,D,v,E,w,x,F,k,C,B={};;){if(v=u[u.length-1],this.defaultActions[v]?E=this.defaultActions[v]:((null===A||"undefined"==typeof A)&&(A=e()),E=n[v]&&n[v][A]),"undefined"==typeof E||!E.length||!E[0]){var q="";C=[];for(x in n[v])this.terminals_[x]&&x>p&&C.push("'"+this.terminals_[x]+"'");q=f.showPosition?"Parse error on line "+(o+1)+":\n"+f.showPosition()+"\nExpecting "+C.join(", ")+", got '"+(this.terminals_[A]||A)+"'":"Parse error on line "+(o+1)+": Unexpected "+(A==h?"end of input":"'"+(this.terminals_[A]||A)+"'"),this.parseError(q,{text:f.match,token:this.terminals_[A]||A,line:f.yylineno,loc:y,expected:C})}if(E[0]instanceof Array&&E.length>1)throw new Error("Parse Error: multiple actions possible at state: "+v+", token: "+A);switch(E[0]){case 1:u.push(A),s.push(f.yytext),a.push(f.yylloc),u.push(E[1]),A=null,D?(A=D,D=null):(c=f.yyleng,i=f.yytext,o=f.yylineno,y=f.yylloc,l>0&&l--);break;case 2:if(F=this.productions_[E[1]][1],B.$=s[s.length-F],B._$={first_line:a[a.length-(F||1)].first_line,last_line:a[a.length-1].last_line,first_column:a[a.length-(F||1)].first_column,last_column:a[a.length-1].last_column},b&&(B._$.range=[a[a.length-(F||1)].range[0],a[a.length-1].range[1]]),w=this.performAction.apply(B,[i,c,o,g.yy,E[1],s,a].concat(d)),"undefined"!=typeof w)return w;F&&(u=u.slice(0,-1*F*2),s=s.slice(0,-1*F),a=a.slice(0,-1*F)),u.push(this.productions_[E[1]][0]),s.push(B.$),a.push(B._$),k=n[u[u.length-2]][u[u.length-1]],u.push(k);break;case 3:return!0}}return!0}},re=function(){var r={EOF:1,parseError:function(r,e){if(!this.yy.parser)throw new Error(r);this.yy.parser.parseError(r,e)},setInput:function(r,e){return this.yy=e||this.yy||{},this._input=r,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},input:function(){var r=this._input[0];this.yytext+=r,this.yyleng++,this.offset++,this.match+=r,this.matched+=r;var e=r.match(/(?:\r\n?|\n).*/g);return e?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),r},unput:function(r){var e=r.length,t=r.split(/(?:\r\n?|\n)/g);this._input=r+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-e),this.offset-=e;var u=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),t.length-1&&(this.yylineno-=t.length-1);var s=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:t?(t.length===u.length?this.yylloc.first_column:0)+u[u.length-t.length].length-t[0].length:this.yylloc.first_column-e},this.options.ranges&&(this.yylloc.range=[s[0],s[0]+this.yyleng-e]),this.yyleng=this.yytext.length,this},more:function(){return this._more=!0,this},reject:function(){return this.options.backtrack_lexer?(this._backtrack=!0,this):this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},less:function(r){this.unput(this.match.slice(r))},pastInput:function(){var r=this.matched.substr(0,this.matched.length-this.match.length);return(r.length>20?"...":"")+r.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var r=this.match;return r.length<20&&(r+=this._input.substr(0,20-r.length)),(r.substr(0,20)+(r.length>20?"...":"")).replace(/\n/g,"")},showPosition:function(){var r=this.pastInput(),e=new Array(r.length+1).join("-");return r+this.upcomingInput()+"\n"+e+"^"},test_match:function(r,e){var t,u,s;if(this.options.backtrack_lexer&&(s={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(s.yylloc.range=this.yylloc.range.slice(0))),u=r[0].match(/(?:\r\n?|\n).*/g),u&&(this.yylineno+=u.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:u?u[u.length-1].length-u[u.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+r[0].length},this.yytext+=r[0],this.match+=r[0],this.matches=r,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(r[0].length),this.matched+=r[0],t=this.performAction.call(this,this.yy,this,e,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),t)return t;if(this._backtrack){for(var a in s)this[a]=s[a];return!1}return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var r,e,t,u;this._more||(this.yytext="",this.match="");for(var s=this._currentRules(),a=0;a<s.length;a++)if(t=this._input.match(this.rules[s[a]]),t&&(!e||t[0].length>e[0].length)){if(e=t,u=a,this.options.backtrack_lexer){if(r=this.test_match(t,s[a]),r!==!1)return r;if(this._backtrack){e=!1;continue}return!1}if(!this.options.flex)break}return e?(r=this.test_match(e,s[u]),r!==!1?r:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var r=this.next();return r?r:this.lex()},begin:function(r){this.conditionStack.push(r)},popState:function(){var r=this.conditionStack.length-1;return r>0?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(r){return r=this.conditionStack.length-1-Math.abs(r||0),r>=0?this.conditionStack[r]:"INITIAL"},pushState:function(r){this.begin(r)},stateStackSize:function(){return this.conditionStack.length},options:{},performAction:function(r,e,t,u){switch(t){case 0:return 58;case 1:return 60;case 2:return 54;case 3:return 56;case 4:return 57;case 5:return 8;case 6:return 10;case 7:return 10;case 8:return 10;case 9:return 10;case 10:return 10;case 11:return 10;case 12:return 35;case 13:return 42;case 14:return 36;case 15:return 11;case 16:return 37;case 17:return 39;case 18:return 40;case 19:return 41;case 20:return 30;case 21:return 29;case 22:return 47;case 23:return 45;case 24:return 46;case 25:return 48;case 26:return 33;case 27:return 38;case 28:return 39;case 29:return 34;case 30:return 49;case 31:return 25;case 32:return 26;case 33:return 22;case 34:return 24;case 35:return 27;case 36:return 28;case 37:return"QUOTE";case 38:return 9;case 39:return"NEWLINE";case 40:return 6}},rules:[/^(?:style\b)/,/^(?:linkStyle\b)/,/^(?:classDef\b)/,/^(?:class\b)/,/^(?:click\b)/,/^(?:graph\b)/,/^(?:LR\b)/,/^(?:RL\b)/,/^(?:TB\b)/,/^(?:BT\b)/,/^(?:TD\b)/,/^(?:BR\b)/,/^(?:[0-9])/,/^(?:#)/,/^(?::)/,/^(?:;)/,/^(?:,)/,/^(?:=)/,/^(?:\*)/,/^(?:\.)/,/^(?:<)/,/^(?:>)/,/^(?:--[x])/,/^(?:-->)/,/^(?:--[o])/,/^(?:---)/,/^(?:-)/,/^(?:\+)/,/^(?:=)/,/^(?:[\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6]|[\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377]|[\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5]|[\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA]|[\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE]|[\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA]|[\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0]|[\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977]|[\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2]|[\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A]|[\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39]|[\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8]|[\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C]|[\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C]|[\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99]|[\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0]|[\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D]|[\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3]|[\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10]|[\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1]|[\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81]|[\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3]|[\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6]|[\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A]|[\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081]|[\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D]|[\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0]|[\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310]|[\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C]|[\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711]|[\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7]|[\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C]|[\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16]|[\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF]|[\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC]|[\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D]|[\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D]|[\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3]|[\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F]|[\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128]|[\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184]|[\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3]|[\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6]|[\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE]|[\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C]|[\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D]|[\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC]|[\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B]|[\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788]|[\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805]|[\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB]|[\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28]|[\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5]|[\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4]|[\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E]|[\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D]|[\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36]|[\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D]|[\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC]|[\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF]|[\uFFD2-\uFFD7\uFFDA-\uFFDC_])/,/^(?:\|)/,/^(?:\()/,/^(?:\))/,/^(?:\[)/,/^(?:\])/,/^(?:\{)/,/^(?:\})/,/^(?:")/,/^(?:\s)/,/^(?:\n)/,/^(?:$)/],conditions:{INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40],inclusive:!0}}};return r}();return X.lexer=re,r.prototype=X,X.Parser=r,new r}();"undefined"!=typeof r&&"undefined"!=typeof t&&(t.parser=s,t.Parser=s.Parser,t.parse=function(){return s.parse.apply(s,arguments)},t.main=function(e){e[1]||(console.log("Usage: "+e[0]+" FILE"),u.exit(1));var s=r("fs").readFileSync(r("path").normalize(e[1]),"utf8");return t.parser.parse(s)},"undefined"!=typeof e&&r.main===e&&t.main(u.argv.slice(1)))}).call(this,r("1YiZ5S"))},{"1YiZ5S":3,fs:1,path:2}],8:[function(r,e,t){(function(u){var s=function(){function r(){this.yy={}}var e=function(r,e,t,u){for(t=t||{},u=r.length;u--;t[r[u]]=e);return t},t=[1,11],u=[1,12],s=[1,17],a=[1,16],n=[6,8,28],i=[6,8,14,16,28,31,32],o=[6,8,14,16,18,28,31,32],c=[6,31,32],l=[1,35],p=[6,8,16,18,28,31,32],h={trace:function(){},yy:{},symbols_:{error:2,expressions:3,sequenceConfig:4,statements:5,EOF:6,SEQ:7,SPACE:8,DIR:9,newlines:10,statement:11,preStatement:12,alphaNum:13,COLON:14,text:15,DOT:16,message:17,EQUALS:18,callee:19,action:20,SQS:21,SQE:22,actorDefinition:23,messageDefinition:24,caller:25,answer:26,spaceList:27,NEWLINE:28,alphaNumStatement:29,alphaNumToken:30,ALPHA:31,NUM:32,textStatement:33,textToken:34,$accept:0,$end:1},terminals_:{2:"error",6:"EOF",7:"SEQ",8:"SPACE",9:"DIR",14:"COLON",16:"DOT",18:"EQUALS",21:"SQS",22:"SQE",28:"NEWLINE",31:"ALPHA",32:"NUM"},productions_:[0,[3,2],[3,1],[4,4],[5,3],[5,2],[5,3],[12,3],[11,1],[11,3],[11,5],[20,2],[23,3],[24,7],[25,1],[26,1],[19,1],[17,1],[27,2],[27,1],[10,2],[10,2],[10,1],[10,1],[13,1],[29,2],[29,1],[30,1],[30,1],[15,1],[33,2],[33,1],[34,1],[34,1]],performAction:function(r,e,t,u,s,a){var n=a.length-1;switch(s){case 1:case 5:this.$=a[n-1];break;case 3:this.$=a[n-1];break;case 4:case 6:this.$=a[n-2];break;case 7:this.$={a:a[n-2],b:a[n]};break;case 8:u.addActor(a[n].a,"actor",a[n].b),this.$="actor";
-break;case 9:u.addMessage(a[n-2].a,a[n-2].b,a[n]),this.$="message";break;case 10:u.addMessage(a[n-4].a,a[n-2],a[n],a[n-4].b),this.$="actor";break;case 11:this.$="action";break;case 12:this.$="actor";break;case 13:console.log("Got new message from="+a[n-6]+" to="+a[n-2]+" message="+a[n]+" answer="+a[n-4]),this.$="actor";break;case 24:case 27:case 28:case 29:case 33:this.$=a[n];break;case 25:case 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t.node(e).height}).attr("x",function(e){var r=t.node(e);return r.x-r.width/2}).attr("y",function(e){var r=t.node(e);return r.y-r.height/2})}var n=e("./util");t.exports=r},{"./util":25}],4:[function(e,t){"use strict";function r(e,t){var r=e.selectAll("g.edgeLabel").data(t.edges(),function(e){return a.edgeToId(e)}).classed("update",!0);return r.selectAll("*").remove(),r.enter().append("g").classed("edgeLabel",!0).style("opacity",0),r.each(function(e){var r=t.edge(e),a=i(o.select(this),t.edge(e),0,0).classed("label",!0),u=a.node().getBBox();r.labelId&&a.attr("id",r.labelId),n.has(r,"width")||(r.width=u.width),n.has(r,"height")||(r.height=u.height)}),a.applyTransition(r.exit(),t).style("opacity",0).remove(),r}var n=e("./lodash"),i=e("./label/add-label"),a=e("./util"),o=e("./d3");t.exports=r},{"./d3":7,"./label/add-label":18,"./lodash":20,"./util":25}],5:[function(e,t){"use strict";function r(e,t,r){var i=e.selectAll("g.edgePath").data(t.edges(),function(e){return 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o=e("./lodash"),u=e("./graph");t.exports={write:r,read:a}},{"./graph":72,"./lodash":75}],75:[function(e,t){t.exports=e(20)},{lodash:101}],76:[function(e,t){t.exports="1.0.1"},{}],77:[function(e,t,r){arguments[4][57][0].apply(r,arguments)},{"./lib":93,"./lib/alg":84,"./lib/json":94}],78:[function(e,t){t.exports=e(58)},{"../lodash":95}],79:[function(e,t){t.exports=e(59)},{"../lodash":95}],80:[function(e,t){t.exports=e(60)},{"../lodash":95,"./dijkstra":81}],81:[function(e,t){t.exports=e(61)},{"../data/priority-queue":91,"../lodash":95}],82:[function(e,t){t.exports=e(62)},{"../lodash":95,"./tarjan":89}],83:[function(e,t){t.exports=e(63)},{"../lodash":95}],84:[function(e,t,r){arguments[4][64][0].apply(r,arguments)},{"./components":78,"./dijkstra":81,"./dijkstra-all":80,"./find-cycles":82,"./floyd-warshall":83,"./is-acyclic":85,"./postorder":86,"./preorder":87,"./prim":88,"./tarjan":89,"./topsort":90}],85:[function(e,t){t.exports=e(65)},{"./topsort":90}],86:[function(e,t){t.exports=e(66)},{"./dfs":79}],87:[function(e,t){t.exports=e(67)},{"./dfs":79}],88:[function(e,t,r){arguments[4][68][0].apply(r,arguments)},{"../data/priority-queue":91,"../graph":92,"../lodash":95}],89:[function(e,t){t.exports=e(69)},{"../lodash":95}],90:[function(e,t){t.exports=e(70)},{"../lodash":95}],91:[function(e,t){t.exports=e(71)},{"../lodash":95}],92:[function(e,t){"use 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k","Ú":"Uacute","ú":"uacute","↟":"Uarr","⥉":"Uarrocir","Ў":"Ubrcy","ў":"ubrcy","Ŭ":"Ubreve","ŭ":"ubreve","Û":"Ucirc","û":"ucirc","У":"Ucy","у":"ucy","⇅":"udarr","Ű":"Udblac","ű":"udblac","⥮":"udhar","⥾":"ufisht","𝔘":"Ufr","𝔲":"ufr","Ù":"Ugrave","ù":"ugrave","⥣":"uHar","▀":"uhblk","⌜":"ulcorn","⌏":"ulcrop","◸":"ultri","Ū":"Umacr","ū":"umacr","⏟":"UnderBrace","⏝":"UnderParenthesis","⊎":"uplus","Ų":"Uogon","ų":"uogon","𝕌":"Uopf","𝕦":"uopf","⤒":"UpArrowBar","↕":"varr","υ":"upsi","ϒ":"Upsi","Υ":"Upsilon","⇈":"uuarr","⌝":"urcorn","⌎":"urcrop","Ů":"Uring","ů":"uring","◹":"urtri","𝒰":"Uscr","𝓊":"uscr","⋰":"utdot","Ũ":"Utilde","ũ":"utilde","Ü":"Uuml","ü":"uuml","⦧":"uwangle","⦜":"vangrt","⊊︀":"vsubne","⫋︀":"vsubnE","⊋︀":"vsupne","⫌︀":"vsupnE","⫨":"vBar","⫫":"Vbar","⫩":"vBarv","В":"Vcy","в":"vcy","⊩":"Vdash","⊫":"VDash","⫦":"Vdashl","⊻":"veebar","≚":"veeeq","⋮":"vellip","|":"vert","‖":"Vert","❘":"VerticalSeparator","≀":"wr","𝔙":"Vfr","𝔳":"vfr","𝕍":"Vopf","𝕧":"vopf","𝒱":"Vscr","𝓋":"vscr","⊪":"Vvdash","⦚":"vzigzag","Ŵ":"Wcirc","ŵ":"wcirc","⩟":"wedbar","≙":"wedgeq","℘":"wp","𝔚":"Wfr","𝔴":"wfr","𝕎":"Wopf","𝕨":"wopf","𝒲":"Wscr","𝓌":"wscr","𝔛":"Xfr","𝔵":"xfr","Ξ":"Xi","ξ":"xi","⋻":"xnis","𝕏":"Xopf","𝕩":"xopf","𝒳":"Xscr","𝓍":"xscr","Ý":"Yacute","ý":"yacute","Я":"YAcy","я":"yacy","Ŷ":"Ycirc","ŷ":"ycirc","Ы":"Ycy","ы":"ycy","¥":"yen","𝔜":"Yfr","𝔶":"yfr","Ї":"YIcy","ї":"yicy","𝕐":"Yopf","𝕪":"yopf","𝒴":"Yscr","𝓎":"yscr","Ю":"YUcy","ю":"yucy","ÿ":"yuml","Ÿ":"Yuml","Ź":"Zacute","ź":"zacute","Ž":"Zcaron","ž":"zcaron","З":"Zcy","з":"zcy","Ż":"Zdot","ż":"zdot","ℨ":"Zfr","Ζ":"Zeta","ζ":"zeta","𝔷":"zfr","Ж":"ZHcy","ж":"zhcy","⇝":"zigrarr","𝕫":"zopf","𝒵":"Zscr","𝓏":"zscr","‍":"zwj","‌":"zwnj"},d=/["&'<>`]/g,f={'"':"&quot;","&":"&amp;","'":"&#x27;","<":"&lt;",">":"&gt;","`":"&#x60;"},p=/&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/,g=/[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/,m=/&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|iacute|Uacute|plusmn|otilde|Otilde|Agrave|agrave|yacute|Yacute|oslash|Oslash|Atilde|atilde|brvbar|Ccedil|ccedil|ograve|curren|divide|Eacute|eacute|Ograve|oacute|Egrave|egrave|ugrave|frac12|frac14|frac34|Ugrave|Oacute|Iacute|ntilde|Ntilde|uacute|middot|Igrave|igrave|iquest|aacute|laquo|THORN|micro|iexcl|icirc|Icirc|Acirc|ucirc|ecirc|Ocirc|ocirc|Ecirc|Ucirc|aring|Aring|aelig|AElig|acute|pound|raquo|acirc|times|thorn|szlig|cedil|COPY|Auml|ordf|ordm|uuml|macr|Uuml|auml|Ouml|ouml|para|nbsp|Euml|quot|QUOT|euml|yuml|cent|sect|copy|sup1|sup2|sup3|Iuml|iuml|shy|eth|reg|not|yen|amp|AMP|REG|uml|ETH|deg|gt|GT|LT|lt)([=a-zA-Z0-9])?/g,y={Aacute:"Á",aacute:"á",Abreve:"Ă",abreve:"ă",ac:"∾",acd:"∿",acE:"∾̳",Acirc:"Â",acirc:"â",acute:"´",Acy:"А",acy:"а",AElig:"Æ",aelig:"æ",af:"⁡",Afr:"𝔄",afr:"𝔞",Agrave:"À",agrave:"à",alefsym:"ℵ",aleph:"ℵ",Alpha:"Α",alpha:"α",Amacr:"Ā",amacr:"ā",amalg:"⨿",amp:"&",AMP:"&",andand:"⩕",And:"⩓",and:"∧",andd:"⩜",andslope:"⩘",andv:"⩚",ang:"∠",ange:"⦤",angle:"∠",angmsdaa:"⦨",angmsdab:"⦩",angmsdac:"⦪",angmsdad:"⦫",angmsdae:"⦬",angmsdaf:"⦭",angmsdag:"⦮",angmsdah:"⦯",angmsd:"∡",angrt:"∟",angrtvb:"⊾",angrtvbd:"⦝",angsph:"∢",angst:"Å",angzarr:"⍼",Aogon:"Ą",aogon:"ą",Aopf:"𝔸",aopf:"𝕒",apacir:"⩯",ap:"≈",apE:"⩰",ape:"≊",apid:"≋",apos:"'",ApplyFunction:"⁡",approx:"≈",approxeq:"≊",Aring:"Å",aring:"å",Ascr:"𝒜",ascr:"𝒶",Assign:"≔",ast:"*",asymp:"≈",asympeq:"≍",Atilde:"Ã",atilde:"ã",Auml:"Ä",auml:"ä",awconint:"∳",awint:"⨑",backcong:"≌",backepsilon:"϶",backprime:"‵",backsim:"∽",backsimeq:"⋍",Backslash:"∖",Barv:"⫧",barvee:"⊽",barwed:"⌅",Barwed:"⌆",barwedge:"⌅",bbrk:"⎵",bbrktbrk:"⎶",bcong:"≌",Bcy:"Б",bcy:"б",bdquo:"„",becaus:"∵",because:"∵",Because:"∵",bemptyv:"⦰",bepsi:"϶",bernou:"ℬ",Bernoullis:"ℬ",Beta:"Β",beta:"β",beth:"ℶ",between:"≬",Bfr:"𝔅",bfr:"𝔟",bigcap:"⋂",bigcirc:"◯",bigcup:"⋃",bigodot:"⨀",bigoplus:"⨁",bigotimes:"⨂",bigsqcup:"⨆",bigstar:"★",bigtriangledown:"▽",bigtriangleup:"△",biguplus:"⨄",bigvee:"⋁",bigwedge:"⋀",bkarow:"⤍",blacklozenge:"⧫",blacksquare:"▪",blacktriangle:"▴",blacktriangledown:"▾",blacktriangleleft:"◂",blacktriangleright:"▸",blank:"␣",blk12:"▒",blk14:"░",blk34:"▓",block:"█",bne:"=⃥",bnequiv:"≡⃥",bNot:"⫭",bnot:"⌐",Bopf:"𝔹",bopf:"𝕓",bot:"⊥",bottom:"⊥",bowtie:"⋈",boxbox:"⧉",boxdl:"┐",boxdL:"╕",boxDl:"╖",boxDL:"╗",boxdr:"┌",boxdR:"╒",boxDr:"╓",boxDR:"╔",boxh:"─",boxH:"═",boxhd:"┬",boxHd:"╤",boxhD:"╥",boxHD:"╦",boxhu:"┴",boxHu:"╧",boxhU:"╨",boxHU:"╩",boxminus:"⊟",boxplus:"⊞",boxtimes:"⊠",boxul:"┘",boxuL:"╛",boxUl:"╜",boxUL:"╝",boxur:"└",boxuR:"╘",boxUr:"╙",boxUR:"╚",boxv:"│",boxV:"║",boxvh:"┼",boxvH:"╪",boxVh:"╫",boxVH:"╬",boxvl:"┤",boxvL:"╡",boxVl:"╢",boxVL:"╣",boxvr:"├",boxvR:"╞",boxVr:"╟",boxVR:"╠",bprime:"‵",breve:"˘",Breve:"˘",brvbar:"¦",bscr:"𝒷",Bscr:"ℬ",bsemi:"⁏",bsim:"∽",bsime:"⋍",bsolb:"⧅",bsol:"\\",bsolhsub:"⟈",bull:"•",bullet:"•",bump:"≎",bumpE:"⪮",bumpe:"≏",Bumpeq:"≎",bumpeq:"≏",Cacute:"Ć",cacute:"ć",capand:"⩄",capbrcup:"⩉",capcap:"⩋",cap:"∩",Cap:"⋒",capcup:"⩇",capdot:"⩀",CapitalDifferentialD:"ⅅ",caps:"∩︀",caret:"⁁",caron:"ˇ",Cayleys:"ℭ",ccaps:"⩍",Ccaron:"Č",ccaron:"č",Ccedil:"Ç",ccedil:"ç",Ccirc:"Ĉ",ccirc:"ĉ",Cconint:"∰",ccups:"⩌",ccupssm:"⩐",Cdot:"Ċ",cdot:"ċ",cedil:"¸",Cedilla:"¸",cemptyv:"⦲",cent:"¢",centerdot:"·",CenterDot:"·",cfr:"𝔠",Cfr:"ℭ",CHcy:"Ч",chcy:"ч",check:"✓",checkmark:"✓",Chi:"Χ",chi:"χ",circ:"ˆ",circeq:"≗",circlearrowleft:"↺",circlearrowright:"↻",circledast:"⊛",circledcirc:"⊚",circleddash:"⊝",CircleDot:"⊙",circledR:"®",circledS:"Ⓢ",CircleMinus:"⊖",CirclePlus:"⊕",CircleTimes:"⊗",cir:"○",cirE:"⧃",cire:"≗",cirfnint:"⨐",cirmid:"⫯",cirscir:"⧂",ClockwiseContourIntegral:"∲",CloseCurlyDoubleQuote:"”",CloseCurlyQuote:"’",clubs:"♣",clubsuit:"♣",colon:":",Colon:"∷",Colone:"⩴",colone:"≔",coloneq:"≔",comma:",",commat:"@",comp:"∁",compfn:"∘",complement:"∁",complexes:"ℂ",cong:"≅",congdot:"⩭",Congruent:"≡",conint:"∮",Conint:"∯",ContourIntegral:"∮",copf:"𝕔",Copf:"ℂ",coprod:"∐",Coproduct:"∐",copy:"©",COPY:"©",copysr:"℗",CounterClockwiseContourIntegral:"∳",crarr:"↵",cross:"✗",Cross:"⨯",Cscr:"𝒞",cscr:"𝒸",csub:"⫏",csube:"⫑",csup:"⫐",csupe:"⫒",ctdot:"⋯",cudarrl:"⤸",cudarrr:"⤵",cuepr:"⋞",cuesc:"⋟",cularr:"↶",cularrp:"⤽",cupbrcap:"⩈",cupcap:"⩆",CupCap:"≍",cup:"∪",Cup:"⋓",cupcup:"⩊",cupdot:"⊍",cupor:"⩅",cups:"∪︀",curarr:"↷",curarrm:"⤼",curlyeqprec:"⋞",curlyeqsucc:"⋟",curlyvee:"⋎",curlywedge:"⋏",curren:"¤",curvearrowleft:"↶",curvearrowright:"↷",cuvee:"⋎",cuwed:"⋏",cwconint:"∲",cwint:"∱",cylcty:"⌭",dagger:"†",Dagger:"‡",daleth:"ℸ",darr:"↓",Darr:"↡",dArr:"⇓",dash:"‐",Dashv:"⫤",dashv:"⊣",dbkarow:"⤏",dblac:"˝",Dcaron:"Ď",dcaron:"ď",Dcy:"Д",dcy:"д",ddagger:"‡",ddarr:"⇊",DD:"ⅅ",dd:"ⅆ",DDotrahd:"⤑",ddotseq:"⩷",deg:"°",Del:"∇",Delta:"Δ",delta:"δ",demptyv:"⦱",dfisht:"⥿",Dfr:"𝔇",dfr:"𝔡",dHar:"⥥",dharl:"⇃",dharr:"⇂",DiacriticalAcute:"´",DiacriticalDot:"˙",DiacriticalDoubleAcute:"˝",DiacriticalGrave:"`",DiacriticalTilde:"˜",diam:"⋄",diamond:"⋄",Diamond:"⋄",diamondsuit:"♦",diams:"♦",die:"¨",DifferentialD:"ⅆ",digamma:"ϝ",disin:"⋲",div:"÷",divide:"÷",divideontimes:"⋇",divonx:"⋇",DJcy:"Ђ",djcy:"ђ",dlcorn:"⌞",dlcrop:"⌍",dollar:"$",Dopf:"𝔻",dopf:"𝕕",Dot:"¨",dot:"˙",DotDot:"⃜",doteq:"≐",doteqdot:"≑",DotEqual:"≐",dotminus:"∸",dotplus:"∔",dotsquare:"⊡",doublebarwedge:"⌆",DoubleContourIntegral:"∯",DoubleDot:"¨",DoubleDownArrow:"⇓",DoubleLeftArrow:"⇐",DoubleLeftRightArrow:"⇔",DoubleLeftTee:"⫤",DoubleLongLeftArrow:"⟸",DoubleLongLeftRightArrow:"⟺",DoubleLongRightArrow:"⟹",DoubleRightArrow:"⇒",DoubleRightTee:"⊨",DoubleUpArrow:"⇑",DoubleUpDownArrow:"⇕",DoubleVerticalBar:"∥",DownArrowBar:"⤓",downarrow:"↓",DownArrow:"↓",Downarrow:"⇓",DownArrowUpArrow:"⇵",DownBreve:"̑",downdownarrows:"⇊",downharpoonleft:"⇃",downharpoonright:"⇂",DownLeftRightVector:"⥐",DownLeftTeeVector:"⥞",DownLeftVectorBar:"⥖",DownLeftVector:"↽",DownRightTeeVector:"⥟",DownRightVectorBar:"⥗",DownRightVector:"⇁",DownTeeArrow:"↧",DownTee:"⊤",drbkarow:"⤐",drcorn:"⌟",drcrop:"⌌",Dscr:"𝒟",dscr:"𝒹",DScy:"Ѕ",dscy:"ѕ",dsol:"⧶",Dstrok:"Đ",dstrok:"đ",dtdot:"⋱",dtri:"▿",dtrif:"▾",duarr:"⇵",duhar:"⥯",dwangle:"⦦",DZcy:"Џ",dzcy:"џ",dzigrarr:"⟿",Eacute:"É",eacute:"é",easter:"⩮",Ecaron:"Ě",ecaron:"ě",Ecirc:"Ê",ecirc:"ê",ecir:"≖",ecolon:"≕",Ecy:"Э",ecy:"э",eDDot:"⩷",Edot:"Ė",edot:"ė",eDot:"≑",ee:"ⅇ",efDot:"≒",Efr:"𝔈",efr:"𝔢",eg:"⪚",Egrave:"È",egrave:"è",egs:"⪖",egsdot:"⪘",el:"⪙",Element:"∈",elinters:"⏧",ell:"ℓ",els:"⪕",elsdot:"⪗",Emacr:"Ē",emacr:"ē",empty:"∅",emptyset:"∅",EmptySmallSquare:"◻",emptyv:"∅",EmptyVerySmallSquare:"▫",emsp13:" ",emsp14:" ",emsp:" ",ENG:"Ŋ",eng:"ŋ",ensp:" ",Eogon:"Ę",eogon:"ę",Eopf:"𝔼",eopf:"𝕖",epar:"⋕",eparsl:"⧣",eplus:"⩱",epsi:"ε",Epsilon:"Ε",epsilon:"ε",epsiv:"ϵ",eqcirc:"≖",eqcolon:"≕",eqsim:"≂",eqslantgtr:"⪖",eqslantless:"⪕",Equal:"⩵",equals:"=",EqualTilde:"≂",equest:"≟",Equilibrium:"⇌",equiv:"≡",equivDD:"⩸",eqvparsl:"⧥",erarr:"⥱",erDot:"≓",escr:"ℯ",Escr:"ℰ",esdot:"≐",Esim:"⩳",esim:"≂",Eta:"Η",eta:"η",ETH:"Ð",eth:"ð",Euml:"Ë",euml:"ë",euro:"€",excl:"!",exist:"∃",Exists:"∃",expectation:"ℰ",exponentiale:"ⅇ",ExponentialE:"ⅇ",fallingdotseq:"≒",Fcy:"Ф",fcy:"ф",female:"♀",ffilig:"ffi",fflig:"ff",ffllig:"ffl",Ffr:"𝔉",ffr:"𝔣",filig:"fi",FilledSmallSquare:"◼",FilledVerySmallSquare:"▪",fjlig:"fj",flat:"♭",fllig:"fl",fltns:"▱",fnof:"ƒ",Fopf:"𝔽",fopf:"𝕗",forall:"∀",ForAll:"∀",fork:"⋔",forkv:"⫙",Fouriertrf:"ℱ",fpartint:"⨍",frac12:"½",frac13:"⅓",frac14:"¼",frac15:"⅕",frac16:"⅙",frac18:"⅛",frac23:"⅔",frac25:"⅖",frac34:"¾",frac35:"⅗",frac38:"⅜",frac45:"⅘",frac56:"⅚",frac58:"⅝",frac78:"⅞",frasl:"⁄",frown:"⌢",fscr:"𝒻",Fscr:"ℱ",gacute:"ǵ",Gamma:"Γ",gamma:"γ",Gammad:"Ϝ",gammad:"ϝ",gap:"⪆",Gbreve:"Ğ",gbreve:"ğ",Gcedil:"Ģ",Gcirc:"Ĝ",gcirc:"ĝ",Gcy:"Г",gcy:"г",Gdot:"Ġ",gdot:"ġ",ge:"≥",gE:"≧",gEl:"⪌",gel:"⋛",geq:"≥",geqq:"≧",geqslant:"⩾",gescc:"⪩",ges:"⩾",gesdot:"⪀",gesdoto:"⪂",gesdotol:"⪄",gesl:"⋛︀",gesles:"⪔",Gfr:"𝔊",gfr:"𝔤",gg:"≫",Gg:"⋙",ggg:"⋙",gimel:"ℷ",GJcy:"Ѓ",gjcy:"ѓ",gla:"⪥",gl:"≷",glE:"⪒",glj:"⪤",gnap:"⪊",gnapprox:"⪊",gne:"⪈",gnE:"≩",gneq:"⪈",gneqq:"≩",gnsim:"⋧",Gopf:"𝔾",gopf:"𝕘",grave:"`",GreaterEqual:"≥",GreaterEqualLess:"⋛",GreaterFullEqual:"≧",GreaterGreater:"⪢",GreaterLess:"≷",GreaterSlantEqual:"⩾",GreaterTilde:"≳",Gscr:"𝒢",gscr:"ℊ",gsim:"≳",gsime:"⪎",gsiml:"⪐",gtcc:"⪧",gtcir:"⩺",gt:">",GT:">",Gt:"≫",gtdot:"⋗",gtlPar:"⦕",gtquest:"⩼",gtrapprox:"⪆",gtrarr:"⥸",gtrdot:"⋗",gtreqless:"⋛",gtreqqless:"⪌",gtrless:"≷",gtrsim:"≳",gvertneqq:"≩︀",gvnE:"≩︀",Hacek:"ˇ",hairsp:" ",half:"½",hamilt:"ℋ",HARDcy:"Ъ",hardcy:"ъ",harrcir:"⥈",harr:"↔",hArr:"⇔",harrw:"↭",Hat:"^",hbar:"ℏ",Hcirc:"Ĥ",hcirc:"ĥ",hearts:"♥",heartsuit:"♥",hellip:"…",hercon:"⊹",hfr:"𝔥",Hfr:"ℌ",HilbertSpace:"ℋ",hksearow:"⤥",hkswarow:"⤦",hoarr:"⇿",homtht:"∻",hookleftarrow:"↩",hookrightarrow:"↪",hopf:"𝕙",Hopf:"ℍ",horbar:"―",HorizontalLine:"─",hscr:"𝒽",Hscr:"ℋ",hslash:"ℏ",Hstrok:"Ħ",hstrok:"ħ",HumpDownHump:"≎",HumpEqual:"≏",hybull:"⁃",hyphen:"‐",Iacute:"Í",iacute:"í",ic:"⁣",Icirc:"Î",icirc:"î",Icy:"И",icy:"и",Idot:"İ",IEcy:"Е",iecy:"е",iexcl:"¡",iff:"⇔",ifr:"𝔦",Ifr:"ℑ",Igrave:"Ì",igrave:"ì",ii:"ⅈ",iiiint:"⨌",iiint:"∭",iinfin:"⧜",iiota:"℩",IJlig:"IJ",ijlig:"ij",Imacr:"Ī",imacr:"ī",image:"ℑ",ImaginaryI:"ⅈ",imagline:"ℐ",imagpart:"ℑ",imath:"ı",Im:"ℑ",imof:"⊷",imped:"Ƶ",Implies:"⇒",incare:"℅","in":"∈",infin:"∞",infintie:"⧝",inodot:"ı",intcal:"⊺","int":"∫",Int:"∬",integers:"ℤ",Integral:"∫",intercal:"⊺",Intersection:"⋂",intlarhk:"⨗",intprod:"⨼",InvisibleComma:"⁣",InvisibleTimes:"⁢",IOcy:"Ё",iocy:"ё",Iogon:"Į",iogon:"į",Iopf:"𝕀",iopf:"𝕚",Iota:"Ι",iota:"ι",iprod:"⨼",iquest:"¿",iscr:"𝒾",Iscr:"ℐ",isin:"∈",isindot:"⋵",isinE:"⋹",isins:"⋴",isinsv:"⋳",isinv:"∈",it:"⁢",Itilde:"Ĩ",itilde:"ĩ",Iukcy:"І",iukcy:"і",Iuml:"Ï",iuml:"ï",Jcirc:"Ĵ",jcirc:"ĵ",Jcy:"Й",jcy:"й",Jfr:"𝔍",jfr:"𝔧",jmath:"ȷ",Jopf:"𝕁",jopf:"𝕛",Jscr:"𝒥",jscr:"𝒿",Jsercy:"Ј",jsercy:"ј",Jukcy:"Є",jukcy:"є",Kappa:"Κ",kappa:"κ",kappav:"ϰ",Kcedil:"Ķ",kcedil:"ķ",Kcy:"К",kcy:"к",Kfr:"𝔎",kfr:"𝔨",kgreen:"ĸ",KHcy:"Х",khcy:"х",KJcy:"Ќ",kjcy:"ќ",Kopf:"𝕂",kopf:"𝕜",Kscr:"𝒦",kscr:"𝓀",lAarr:"⇚",Lacute:"Ĺ",lacute:"ĺ",laemptyv:"⦴",lagran:"ℒ",Lambda:"Λ",lambda:"λ",lang:"⟨",Lang:"⟪",langd:"⦑",langle:"⟨",lap:"⪅",Laplacetrf:"ℒ",laquo:"«",larrb:"⇤",larrbfs:"⤟",larr:"←",Larr:"↞",lArr:"⇐",larrfs:"⤝",larrhk:"↩",larrlp:"↫",larrpl:"⤹",larrsim:"⥳",larrtl:"↢",latail:"⤙",lAtail:"⤛",lat:"⪫",late:"⪭",lates:"⪭︀",lbarr:"⤌",lBarr:"⤎",lbbrk:"❲",lbrace:"{",lbrack:"[",lbrke:"⦋",lbrksld:"⦏",lbrkslu:"⦍",Lcaron:"Ľ",lcaron:"ľ",Lcedil:"Ļ",lcedil:"ļ",lceil:"⌈",lcub:"{",Lcy:"Л",lcy:"л",ldca:"⤶",ldquo:"“",ldquor:"„",ldrdhar:"⥧",ldrushar:"⥋",ldsh:"↲",le:"≤",lE:"≦",LeftAngleBracket:"⟨",LeftArrowBar:"⇤",leftarrow:"←",LeftArrow:"←",Leftarrow:"⇐",LeftArrowRightArrow:"⇆",leftarrowtail:"↢",LeftCeiling:"⌈",LeftDoubleBracket:"⟦",LeftDownTeeVector:"⥡",LeftDownVectorBar:"⥙",LeftDownVector:"⇃",LeftFloor:"⌊",leftharpoondown:"↽",leftharpoonup:"↼",leftleftarrows:"⇇",leftrightarrow:"↔",LeftRightArrow:"↔",Leftrightarrow:"⇔",leftrightarrows:"⇆",leftrightharpoons:"⇋",leftrightsquigarrow:"↭",LeftRightVector:"⥎",LeftTeeArrow:"↤",LeftTee:"⊣",LeftTeeVector:"⥚",leftthreetimes:"⋋",LeftTriangleBar:"⧏",LeftTriangle:"⊲",LeftTriangleEqual:"⊴",LeftUpDownVector:"⥑",LeftUpTeeVector:"⥠",LeftUpVectorBar:"⥘",LeftUpVector:"↿",LeftVectorBar:"⥒",LeftVector:"↼",lEg:"⪋",leg:"⋚",leq:"≤",leqq:"≦",leqslant:"⩽",lescc:"⪨",les:"⩽",lesdot:"⩿",lesdoto:"⪁",lesdotor:"⪃",lesg:"⋚︀",lesges:"⪓",lessapprox:"⪅",lessdot:"⋖",lesseqgtr:"⋚",lesseqqgtr:"⪋",LessEqualGreater:"⋚",LessFullEqual:"≦",LessGreater:"≶",lessgtr:"≶",LessLess:"⪡",lesssim:"≲",LessSlantEqual:"⩽",LessTilde:"≲",lfisht:"⥼",lfloor:"⌊",Lfr:"𝔏",lfr:"𝔩",lg:"≶",lgE:"⪑",lHar:"⥢",lhard:"↽",lharu:"↼",lharul:"⥪",lhblk:"▄",LJcy:"Љ",ljcy:"љ",llarr:"⇇",ll:"≪",Ll:"⋘",llcorner:"⌞",Lleftarrow:"⇚",llhard:"⥫",lltri:"◺",Lmidot:"Ŀ",lmidot:"ŀ",lmoustache:"⎰",lmoust:"⎰",lnap:"⪉",lnapprox:"⪉",lne:"⪇",lnE:"≨",lneq:"⪇",lneqq:"≨",lnsim:"⋦",loang:"⟬",loarr:"⇽",lobrk:"⟦",longleftarrow:"⟵",LongLeftArrow:"⟵",Longleftarrow:"⟸",longleftrightarrow:"⟷",LongLeftRightArrow:"⟷",Longleftrightarrow:"⟺",longmapsto:"⟼",longrightarrow:"⟶",LongRightArrow:"⟶",Longrightarrow:"⟹",looparrowleft:"↫",looparrowright:"↬",lopar:"⦅",Lopf:"𝕃",lopf:"𝕝",loplus:"⨭",lotimes:"⨴",lowast:"∗",lowbar:"_",LowerLeftArrow:"↙",LowerRightArrow:"↘",loz:"◊",lozenge:"◊",lozf:"⧫",lpar:"(",lparlt:"⦓",lrarr:"⇆",lrcorner:"⌟",lrhar:"⇋",lrhard:"⥭",lrm:"‎",lrtri:"⊿",lsaquo:"‹",lscr:"𝓁",Lscr:"ℒ",lsh:"↰",Lsh:"↰",lsim:"≲",lsime:"⪍",lsimg:"⪏",lsqb:"[",lsquo:"‘",lsquor:"‚",Lstrok:"Ł",lstrok:"ł",ltcc:"⪦",ltcir:"⩹",lt:"<",LT:"<",Lt:"≪",ltdot:"⋖",lthree:"⋋",ltimes:"⋉",ltlarr:"⥶",ltquest:"⩻",ltri:"◃",ltrie:"⊴",ltrif:"◂",ltrPar:"⦖",lurdshar:"⥊",luruhar:"⥦",lvertneqq:"≨︀",lvnE:"≨︀",macr:"¯",male:"♂",malt:"✠",maltese:"✠",Map:"⤅",map:"↦",mapsto:"↦",mapstodown:"↧",mapstoleft:"↤",mapstoup:"↥",marker:"▮",mcomma:"⨩",Mcy:"М",mcy:"м",mdash:"—",mDDot:"∺",measuredangle:"∡",MediumSpace:" ",Mellintrf:"ℳ",Mfr:"𝔐",mfr:"𝔪",mho:"℧",micro:"µ",midast:"*",midcir:"⫰",mid:"∣",middot:"·",minusb:"⊟",minus:"−",minusd:"∸",minusdu:"⨪",MinusPlus:"∓",mlcp:"⫛",mldr:"…",mnplus:"∓",models:"⊧",Mopf:"𝕄",mopf:"𝕞",mp:"∓",mscr:"𝓂",Mscr:"ℳ",mstpos:"∾",Mu:"Μ",mu:"μ",multimap:"⊸",mumap:"⊸",nabla:"∇",Nacute:"Ń",nacute:"ń",nang:"∠⃒",nap:"≉",napE:"⩰̸",napid:"≋̸",napos:"ʼn",napprox:"≉",natural:"♮",naturals:"ℕ",natur:"♮",nbsp:" ",nbump:"≎̸",nbumpe:"≏̸",ncap:"⩃",Ncaron:"Ň",ncaron:"ň",Ncedil:"Ņ",ncedil:"ņ",ncong:"≇",ncongdot:"⩭̸",ncup:"⩂",Ncy:"Н",ncy:"н",ndash:"–",nearhk:"⤤",nearr:"↗",neArr:"⇗",nearrow:"↗",ne:"≠",nedot:"≐̸",NegativeMediumSpace:"​",NegativeThickSpace:"​",NegativeThinSpace:"​",NegativeVeryThinSpace:"​",nequiv:"≢",nesear:"⤨",nesim:"≂̸",NestedGreaterGreater:"≫",NestedLessLess:"≪",NewLine:"\n",nexist:"∄",nexists:"∄",Nfr:"𝔑",nfr:"𝔫",ngE:"≧̸",nge:"≱",ngeq:"≱",ngeqq:"≧̸",ngeqslant:"⩾̸",nges:"⩾̸",nGg:"⋙̸",ngsim:"≵",nGt:"≫⃒",ngt:"≯",ngtr:"≯",nGtv:"≫̸",nharr:"↮",nhArr:"⇎",nhpar:"⫲",ni:"∋",nis:"⋼",nisd:"⋺",niv:"∋",NJcy:"Њ",njcy:"њ",nlarr:"↚",nlArr:"⇍",nldr:"‥",nlE:"≦̸",nle:"≰",nleftarrow:"↚",nLeftarrow:"⇍",nleftrightarrow:"↮",nLeftrightarrow:"⇎",nleq:"≰",nleqq:"≦̸",nleqslant:"⩽̸",nles:"⩽̸",nless:"≮",nLl:"⋘̸",nlsim:"≴",nLt:"≪⃒",nlt:"≮",nltri:"⋪",nltrie:"⋬",nLtv:"≪̸",nmid:"∤",NoBreak:"⁠",NonBreakingSpace:" ",nopf:"𝕟",Nopf:"ℕ",Not:"⫬",not:"¬",NotCongruent:"≢",NotCupCap:"≭",NotDoubleVerticalBar:"∦",NotElement:"∉",NotEqual:"≠",NotEqualTilde:"≂̸",NotExists:"∄",NotGreater:"≯",NotGreaterEqual:"≱",NotGreaterFullEqual:"≧̸",NotGreaterGreater:"≫̸",NotGreaterLess:"≹",NotGreaterSlantEqual:"⩾̸",NotGreaterTilde:"≵",NotHumpDownHump:"≎̸",NotHumpEqual:"≏̸",notin:"∉",notindot:"⋵̸",notinE:"⋹̸",notinva:"∉",notinvb:"⋷",notinvc:"⋶",NotLeftTriangleBar:"⧏̸",NotLeftTriangle:"⋪",NotLeftTriangleEqual:"⋬",NotLess:"≮",NotLessEqual:"≰",NotLessGreater:"≸",NotLessLess:"≪̸",NotLessSlantEqual:"⩽̸",NotLessTilde:"≴",NotNestedGreaterGreater:"⪢̸",NotNestedLessLess:"⪡̸",notni:"∌",notniva:"∌",notnivb:"⋾",notnivc:"⋽",NotPrecedes:"⊀",NotPrecedesEqual:"⪯̸",NotPrecedesSlantEqual:"⋠",NotReverseElement:"∌",NotRightTriangleBar:"⧐̸",NotRightTriangle:"⋫",NotRightTriangleEqual:"⋭",NotSquareSubset:"⊏̸",NotSquareSubsetEqual:"⋢",NotSquareSuperset:"⊐̸",NotSquareSupersetEqual:"⋣",NotSubset:"⊂⃒",NotSubsetEqual:"⊈",NotSucceeds:"⊁",NotSucceedsEqual:"⪰̸",NotSucceedsSlantEqual:"⋡",NotSucceedsTilde:"≿̸",NotSuperset:"⊃⃒",NotSupersetEqual:"⊉",NotTilde:"≁",NotTildeEqual:"≄",NotTildeFullEqual:"≇",NotTildeTilde:"≉",NotVerticalBar:"∤",nparallel:"∦",npar:"∦",nparsl:"⫽⃥",npart:"∂̸",npolint:"⨔",npr:"⊀",nprcue:"⋠",nprec:"⊀",npreceq:"⪯̸",npre:"⪯̸",nrarrc:"⤳̸",nrarr:"↛",nrArr:"⇏",nrarrw:"↝̸",nrightarrow:"↛",nRightarrow:"⇏",nrtri:"⋫",nrtrie:"⋭",nsc:"⊁",nsccue:"⋡",nsce:"⪰̸",Nscr:"𝒩",nscr:"𝓃",nshortmid:"∤",nshortparallel:"∦",nsim:"≁",nsime:"≄",nsimeq:"≄",nsmid:"∤",nspar:"∦",nsqsube:"⋢",nsqsupe:"⋣",nsub:"⊄",nsubE:"⫅̸",nsube:"⊈",nsubset:"⊂⃒",nsubseteq:"⊈",nsubseteqq:"⫅̸",nsucc:"⊁",nsucceq:"⪰̸",nsup:"⊅",nsupE:"⫆̸",nsupe:"⊉",nsupset:"⊃⃒",nsupseteq:"⊉",nsupseteqq:"⫆̸",ntgl:"≹",Ntilde:"Ñ",ntilde:"ñ",ntlg:"≸",ntriangleleft:"⋪",ntrianglelefteq:"⋬",ntriangleright:"⋫",ntrianglerighteq:"⋭",Nu:"Ν",nu:"ν",num:"#",numero:"№",numsp:" ",nvap:"≍⃒",nvdash:"⊬",nvDash:"⊭",nVdash:"⊮",nVDash:"⊯",nvge:"≥⃒",nvgt:">⃒",nvHarr:"⤄",nvinfin:"⧞",nvlArr:"⤂",nvle:"≤⃒",nvlt:"<⃒",nvltrie:"⊴⃒",nvrArr:"⤃",nvrtrie:"⊵⃒",nvsim:"∼⃒",nwarhk:"⤣",nwarr:"↖",nwArr:"⇖",nwarrow:"↖",nwnear:"⤧",Oacute:"Ó",oacute:"ó",oast:"⊛",Ocirc:"Ô",ocirc:"ô",ocir:"⊚",Ocy:"О",ocy:"о",odash:"⊝",Odblac:"Ő",odblac:"ő",odiv:"⨸",odot:"⊙",odsold:"⦼",OElig:"Œ",oelig:"œ",ofcir:"⦿",Ofr:"𝔒",ofr:"𝔬",ogon:"˛",Ograve:"Ò",ograve:"ò",ogt:"⧁",ohbar:"⦵",ohm:"Ω",oint:"∮",olarr:"↺",olcir:"⦾",olcross:"⦻",oline:"‾",olt:"⧀",Omacr:"Ō",omacr:"ō",Omega:"Ω",omega:"ω",Omicron:"Ο",omicron:"ο",omid:"⦶",ominus:"⊖",Oopf:"𝕆",oopf:"𝕠",opar:"⦷",OpenCurlyDoubleQuote:"“",OpenCurlyQuote:"‘",operp:"⦹",oplus:"⊕",orarr:"↻",Or:"⩔",or:"∨",ord:"⩝",order:"ℴ",orderof:"ℴ",ordf:"ª",ordm:"º",origof:"⊶",oror:"⩖",orslope:"⩗",orv:"⩛",oS:"Ⓢ",Oscr:"𝒪",oscr:"ℴ",Oslash:"Ø",oslash:"ø",osol:"⊘",Otilde:"Õ",otilde:"õ",otimesas:"⨶",Otimes:"⨷",otimes:"⊗",Ouml:"Ö",ouml:"ö",ovbar:"⌽",OverBar:"‾",OverBrace:"⏞",OverBracket:"⎴",OverParenthesis:"⏜",para:"¶",parallel:"∥",par:"∥",parsim:"⫳",parsl:"⫽",part:"∂",PartialD:"∂",Pcy:"П",pcy:"п",percnt:"%",period:".",permil:"‰",perp:"⊥",pertenk:"‱",Pfr:"𝔓",pfr:"𝔭",Phi:"Φ",phi:"φ",phiv:"ϕ",phmmat:"ℳ",phone:"☎",Pi:"Π",pi:"π",pitchfork:"⋔",piv:"ϖ",planck:"ℏ",planckh:"ℎ",plankv:"ℏ",plusacir:"⨣",plusb:"⊞",pluscir:"⨢",plus:"+",plusdo:"∔",plusdu:"⨥",pluse:"⩲",PlusMinus:"±",plusmn:"±",plussim:"⨦",plustwo:"⨧",pm:"±",Poincareplane:"ℌ",pointint:"⨕",popf:"𝕡",Popf:"ℙ",pound:"£",prap:"⪷",Pr:"⪻",pr:"≺",prcue:"≼",precapprox:"⪷",prec:"≺",preccurlyeq:"≼",Precedes:"≺",PrecedesEqual:"⪯",PrecedesSlantEqual:"≼",PrecedesTilde:"≾",preceq:"⪯",precnapprox:"⪹",precneqq:"⪵",precnsim:"⋨",pre:"⪯",prE:"⪳",precsim:"≾",prime:"′",Prime:"″",primes:"ℙ",prnap:"⪹",prnE:"⪵",prnsim:"⋨",prod:"∏",Product:"∏",profalar:"⌮",profline:"⌒",profsurf:"⌓",prop:"∝",Proportional:"∝",Proportion:"∷",propto:"∝",prsim:"≾",prurel:"⊰",Pscr:"𝒫",pscr:"𝓅",Psi:"Ψ",psi:"ψ",puncsp:" ",Qfr:"𝔔",qfr:"𝔮",qint:"⨌",qopf:"𝕢",Qopf:"ℚ",qprime:"⁗",Qscr:"𝒬",qscr:"𝓆",quaternions:"ℍ",quatint:"⨖",quest:"?",questeq:"≟",quot:'"',QUOT:'"',rAarr:"⇛",race:"∽̱",Racute:"Ŕ",racute:"ŕ",radic:"√",raemptyv:"⦳",rang:"⟩",Rang:"⟫",rangd:"⦒",range:"⦥",rangle:"⟩",raquo:"»",rarrap:"⥵",rarrb:"⇥",rarrbfs:"⤠",rarrc:"⤳",rarr:"→",Rarr:"↠",rArr:"⇒",rarrfs:"⤞",rarrhk:"↪",rarrlp:"↬",rarrpl:"⥅",rarrsim:"⥴",Rarrtl:"⤖",rarrtl:"↣",rarrw:"↝",ratail:"⤚",rAtail:"⤜",ratio:"∶",rationals:"ℚ",rbarr:"⤍",rBarr:"⤏",RBarr:"⤐",rbbrk:"❳",rbrace:"}",rbrack:"]",rbrke:"⦌",rbrksld:"⦎",rbrkslu:"⦐",Rcaron:"Ř",rcaron:"ř",Rcedil:"Ŗ",rcedil:"ŗ",rceil:"⌉",rcub:"}",Rcy:"Р",rcy:"р",rdca:"⤷",rdldhar:"⥩",rdquo:"”",rdquor:"”",rdsh:"↳",real:"ℜ",realine:"ℛ",realpart:"ℜ",reals:"ℝ",Re:"ℜ",rect:"▭",reg:"®",REG:"®",ReverseElement:"∋",ReverseEquilibrium:"⇋",ReverseUpEquilibrium:"⥯",rfisht:"⥽",rfloor:"⌋",rfr:"𝔯",Rfr:"ℜ",rHar:"⥤",rhard:"⇁",rharu:"⇀",rharul:"⥬",Rho:"Ρ",rho:"ρ",rhov:"ϱ",RightAngleBracket:"⟩",RightArrowBar:"⇥",rightarrow:"→",RightArrow:"→",Rightarrow:"⇒",RightArrowLeftArrow:"⇄",rightarrowtail:"↣",RightCeiling:"⌉",RightDoubleBracket:"⟧",RightDownTeeVector:"⥝",RightDownVectorBar:"⥕",RightDownVector:"⇂",RightFloor:"⌋",rightharpoondown:"⇁",rightharpoonup:"⇀",rightleftarrows:"⇄",rightleftharpoons:"⇌",rightrightarrows:"⇉",rightsquigarrow:"↝",RightTeeArrow:"↦",RightTee:"⊢",RightTeeVector:"⥛",rightthreetimes:"⋌",RightTriangleBar:"⧐",RightTriangle:"⊳",RightTriangleEqual:"⊵",RightUpDownVector:"⥏",RightUpTeeVector:"⥜",RightUpVectorBar:"⥔",RightUpVector:"↾",RightVectorBar:"⥓",RightVector:"⇀",ring:"˚",risingdotseq:"≓",rlarr:"⇄",rlhar:"⇌",rlm:"‏",rmoustache:"⎱",rmoust:"⎱",rnmid:"⫮",roang:"⟭",roarr:"⇾",robrk:"⟧",ropar:"⦆",ropf:"𝕣",Ropf:"ℝ",roplus:"⨮",rotimes:"⨵",RoundImplies:"⥰",rpar:")",rpargt:"⦔",rppolint:"⨒",rrarr:"⇉",Rrightarrow:"⇛",rsaquo:"›",rscr:"𝓇",Rscr:"ℛ",rsh:"↱",Rsh:"↱",rsqb:"]",rsquo:"’",rsquor:"’",rthree:"⋌",rtimes:"⋊",rtri:"▹",rtrie:"⊵",rtrif:"▸",rtriltri:"⧎",RuleDelayed:"⧴",ruluhar:"⥨",rx:"℞",Sacute:"Ś",sacute:"ś",sbquo:"‚",scap:"⪸",Scaron:"Š",scaron:"š",Sc:"⪼",sc:"≻",sccue:"≽",sce:"⪰",scE:"⪴",Scedil:"Ş",scedil:"ş",Scirc:"Ŝ",scirc:"ŝ",scnap:"⪺",scnE:"⪶",scnsim:"⋩",scpolint:"⨓",scsim:"≿",Scy:"С",scy:"с",sdotb:"⊡",sdot:"⋅",sdote:"⩦",searhk:"⤥",searr:"↘",seArr:"⇘",searrow:"↘",sect:"§",semi:";",seswar:"⤩",setminus:"∖",setmn:"∖",sext:"✶",Sfr:"𝔖",sfr:"𝔰",sfrown:"⌢",sharp:"♯",SHCHcy:"Щ",shchcy:"щ",SHcy:"Ш",shcy:"ш",ShortDownArrow:"↓",ShortLeftArrow:"←",shortmid:"∣",shortparallel:"∥",ShortRightArrow:"→",ShortUpArrow:"↑",shy:"­",Sigma:"Σ",sigma:"σ",sigmaf:"ς",sigmav:"ς",sim:"∼",simdot:"⩪",sime:"≃",simeq:"≃",simg:"⪞",simgE:"⪠",siml:"⪝",simlE:"⪟",simne:"≆",simplus:"⨤",simrarr:"⥲",slarr:"←",SmallCircle:"∘",smallsetminus:"∖",smashp:"⨳",smeparsl:"⧤",smid:"∣",smile:"⌣",smt:"⪪",smte:"⪬",smtes:"⪬︀",SOFTcy:"Ь",softcy:"ь",solbar:"⌿",solb:"⧄",sol:"/",Sopf:"𝕊",sopf:"𝕤",spades:"♠",spadesuit:"♠",spar:"∥",sqcap:"⊓",sqcaps:"⊓︀",sqcup:"⊔",sqcups:"⊔︀",Sqrt:"√",sqsub:"⊏",sqsube:"⊑",sqsubset:"⊏",sqsubseteq:"⊑",sqsup:"⊐",sqsupe:"⊒",sqsupset:"⊐",sqsupseteq:"⊒",square:"□",Square:"□",SquareIntersection:"⊓",SquareSubset:"⊏",SquareSubsetEqual:"⊑",SquareSuperset:"⊐",SquareSupersetEqual:"⊒",SquareUnion:"⊔",squarf:"▪",squ:"□",squf:"▪",srarr:"→",Sscr:"𝒮",sscr:"𝓈",ssetmn:"∖",ssmile:"⌣",sstarf:"⋆",Star:"⋆",star:"☆",starf:"★",straightepsilon:"ϵ",straightphi:"ϕ",strns:"¯",sub:"⊂",Sub:"⋐",subdot:"⪽",subE:"⫅",sube:"⊆",subedot:"⫃",submult:"⫁",subnE:"⫋",subne:"⊊",subplus:"⪿",subrarr:"⥹",subset:"⊂",Subset:"⋐",subseteq:"⊆",subseteqq:"⫅",SubsetEqual:"⊆",subsetneq:"⊊",subsetneqq:"⫋",subsim:"⫇",subsub:"⫕",subsup:"⫓",succapprox:"⪸",succ:"≻",succcurlyeq:"≽",Succeeds:"≻",SucceedsEqual:"⪰",SucceedsSlantEqual:"≽",SucceedsTilde:"≿",succeq:"⪰",succnapprox:"⪺",succneqq:"⪶",succnsim:"⋩",succsim:"≿",SuchThat:"∋",sum:"∑",Sum:"∑",sung:"♪",sup1:"¹",sup2:"²",sup3:"³",sup:"⊃",Sup:"⋑",supdot:"⪾",supdsub:"⫘",supE:"⫆",supe:"⊇",supedot:"⫄",Superset:"⊃",SupersetEqual:"⊇",suphsol:"⟉",suphsub:"⫗",suplarr:"⥻",supmult:"⫂",supnE:"⫌",supne:"⊋",supplus:"⫀",supset:"⊃",Supset:"⋑",supseteq:"⊇",supseteqq:"⫆",supsetneq:"⊋",supsetneqq:"⫌",supsim:"⫈",supsub:"⫔",supsup:"⫖",swarhk:"⤦",swarr:"↙",swArr:"⇙",swarrow:"↙",swnwar:"⤪",szlig:"ß",Tab:"	",target:"⌖",Tau:"Τ",tau:"τ",tbrk:"⎴",Tcaron:"Ť",tcaron:"ť",Tcedil:"Ţ",tcedil:"ţ",Tcy:"Т",tcy:"т",tdot:"⃛",telrec:"⌕",Tfr:"𝔗",tfr:"𝔱",there4:"∴",therefore:"∴",Therefore:"∴",Theta:"Θ",theta:"θ",thetasym:"ϑ",thetav:"ϑ",thickapprox:"≈",thicksim:"∼",ThickSpace:"  ",ThinSpace:" ",thinsp:" ",thkap:"≈",thksim:"∼",THORN:"Þ",thorn:"þ",tilde:"˜",Tilde:"∼",TildeEqual:"≃",TildeFullEqual:"≅",TildeTilde:"≈",timesbar:"⨱",timesb:"⊠",times:"×",timesd:"⨰",tint:"∭",toea:"⤨",topbot:"⌶",topcir:"⫱",top:"⊤",Topf:"𝕋",topf:"𝕥",topfork:"⫚",tosa:"⤩",tprime:"‴",trade:"™",TRADE:"™",triangle:"▵",triangledown:"▿",triangleleft:"◃",trianglelefteq:"⊴",triangleq:"≜",triangleright:"▹",trianglerighteq:"⊵",tridot:"◬",trie:"≜",triminus:"⨺",TripleDot:"⃛",triplus:"⨹",trisb:"⧍",tritime:"⨻",trpezium:"⏢",Tscr:"𝒯",tscr:"𝓉",TScy:"Ц",tscy:"ц",TSHcy:"Ћ",tshcy:"ћ",Tstrok:"Ŧ",tstrok:"ŧ",twixt:"≬",twoheadleftarrow:"↞",twoheadrightarr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l.default&&(l.default={id:"default"},l.default.styles=["fill:#eaeaea","stroke:#666","stroke-width:1.5px"]),r.addVertices(u,o),r.addEdges(s,o);var h=new c.render;h.shapes().question=function(e,t,r){var n=t.width,i=t.height,a=.8*(n+i),o=[{x:a/2,y:0},{x:a,y:-a/2},{x:a/2,y:-a},{x:0,y:-a/2}];return shapeSvg=e.insert("polygon",":first-child").attr("points",o.map(function(e){return e.x+","+e.y}).join(" ")).style("fill","#fff").style("stroke","#333").attr("rx",5).attr("ry",5).attr("transform","translate("+-a/2+","+2*a/4+")"),r.intersect=function(e){return c.intersect.polygon(r,o,e)},shapeSvg},h.shapes().rect_left_inv_arrow=function(e,t,r){var n=t.width,i=t.height,a=[{x:-i/2,y:0},{x:n,y:0},{x:n,y:-i},{x:-i/2,y:-i},{x:0,y:-i/2}];return shapeSvg=e.insert("polygon",":first-child").attr("points",a.map(function(e){return e.x+","+e.y}).join(" ")).style("fill","#fff").style("stroke","#333").attr("transform","translate("+-n/2+","+2*i/4+")"),r.intersect=function(e){return c.intersect.polygon(r,a,e)},shapeSvg},h.arrows().none=function(e,t,r,n){var i=e.append("marker").attr("id",t).attr("viewBox","0 0 10 10").attr("refX",9).attr("refY",5).attr("markerUnits","strokeWidth").attr("markerWidth",8).attr("markerHeight",6).attr("orient","auto"),a=i.append("path").attr("d","M 0 0 L 0 0 L 0 0 z");c.util.applyStyle(a,r[n+"Style"])};var d=d3.select("#"+t);svgGroup=d3.select("#"+t+" g"),h(d3.select("#"+t+" g"),o);(d.attr("width")-o.graph().width)/2;d.attr("height",o.graph().height+40)},h=function(){var e=document.querySelectorAll(".mermaid"),t=0;for(i=0;i<e.length;i++){var r,a=e[i];r="mermaidChart"+t,t++;var c=a.innerHTML;c=c.replace(/>/g,"&gt;"),c=c.replace(/</g,"&lt;"),c=s.decode(c).trim(),a.innerHTML='<svg id="'+r+'" width="100%"><g /></svg>',"graph"===o.detectType(c)?(l(c,r),n.bindFunctions()):u.draw(c,r)}};r.tester=function(){},r.version=function(){return"0.2.11"};var d=function(e,t){return"undefined"==typeof t?!1:e===t};"undefined"!=typeof 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new Error(e);this.trace(e)},parse:function(e){function t(){var e;return e=p.lex()||d,"number"!=typeof e&&(e=r.symbols_[e]||e),e}var r=this,n=[0],i=[null],a=[],o=this.table,u="",s=0,c=0,l=0,h=2,d=1,f=a.slice.call(arguments,1),p=Object.create(this.lexer),g={yy:{}};for(var m in this.yy)Object.prototype.hasOwnProperty.call(this.yy,m)&&(g.yy[m]=this.yy[m]);p.setInput(e,g.yy),g.yy.lexer=p,g.yy.parser=this,"undefined"==typeof p.yylloc&&(p.yylloc={});var y=p.yylloc;a.push(y);var v=p.options&&p.options.ranges;this.parseError="function"==typeof g.yy.parseError?g.yy.parseError:Object.getPrototypeOf(this).parseError;for(var b,w,x,A,_,E,k,D,C,F={};;){if(x=n[n.length-1],this.defaultActions[x]?A=this.defaultActions[x]:((null===b||"undefined"==typeof b)&&(b=t()),A=o[x]&&o[x][b]),"undefined"==typeof A||!A.length||!A[0]){var B="";C=[];for(E in o[x])this.terminals_[E]&&E>h&&C.push("'"+this.terminals_[E]+"'");B=p.showPosition?"Parse error on line "+(s+1)+":\n"+p.showPosition()+"\nExpecting "+C.join(", ")+", got '"+(this.terminals_[b]||b)+"'":"Parse error on line "+(s+1)+": Unexpected "+(b==d?"end of input":"'"+(this.terminals_[b]||b)+"'"),this.parseError(B,{text:p.match,token:this.terminals_[b]||b,line:p.yylineno,loc:y,expected:C})}if(A[0]instanceof Array&&A.length>1)throw new Error("Parse Error: multiple actions possible at state: "+x+", token: "+b);switch(A[0]){case 1:n.push(b),i.push(p.yytext),a.push(p.yylloc),n.push(A[1]),b=null,w?(b=w,w=null):(c=p.yyleng,u=p.yytext,s=p.yylineno,y=p.yylloc,l>0&&l--);break;case 2:if(k=this.productions_[A[1]][1],F.$=i[i.length-k],F._$={first_line:a[a.length-(k||1)].first_line,last_line:a[a.length-1].last_line,first_column:a[a.length-(k||1)].first_column,last_column:a[a.length-1].last_column},v&&(F._$.range=[a[a.length-(k||1)].range[0],a[a.length-1].range[1]]),_=this.performAction.apply(F,[u,c,s,g.yy,A[1],i,a].concat(f)),"undefined"!=typeof _)return _;k&&(n=n.slice(0,-1*k*2),i=i.slice(0,-1*k),a=a.slice(0,-1*k)),n.push(this.productions_[A[1]][0]),i.push(F.$),a.push(F._$),D=o[n[n.length-2]][n[n.length-1]],n.push(D);break;case 3:return!0}}return!0}},et=function(){var e={EOF:1,parseError:function(e,t){if(!this.yy.parser)throw new Error(e);this.yy.parser.parseError(e,t)},setInput:function(e,t){return this.yy=t||this.yy||{},this._input=e,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},input:function(){var e=this._input[0];this.yytext+=e,this.yyleng++,this.offset++,this.match+=e,this.matched+=e;var t=e.match(/(?:\r\n?|\n).*/g);return t?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),e},unput:function(e){var t=e.length,r=e.split(/(?:\r\n?|\n)/g);this._input=e+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-t),this.offset-=t;var n=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),r.length-1&&(this.yylineno-=r.length-1);var i=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:r?(r.length===n.length?this.yylloc.first_column:0)+n[n.length-r.length].length-r[0].length:this.yylloc.first_column-t},this.options.ranges&&(this.yylloc.range=[i[0],i[0]+this.yyleng-t]),this.yyleng=this.yytext.length,this},more:function(){return this._more=!0,this},reject:function(){return this.options.backtrack_lexer?(this._backtrack=!0,this):this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},less:function(e){this.unput(this.match.slice(e))},pastInput:function(){var e=this.matched.substr(0,this.matched.length-this.match.length);return(e.length>20?"...":"")+e.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var e=this.match;return e.length<20&&(e+=this._input.substr(0,20-e.length)),(e.substr(0,20)+(e.length>20?"...":"")).replace(/\n/g,"")},showPosition:function(){var e=this.pastInput(),t=new Array(e.length+1).join("-");return e+this.upcomingInput()+"\n"+t+"^"},test_match:function(e,t){var r,n,i;if(this.options.backtrack_lexer&&(i={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(i.yylloc.range=this.yylloc.range.slice(0))),n=e[0].match(/(?:\r\n?|\n).*/g),n&&(this.yylineno+=n.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:n?n[n.length-1].length-n[n.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+e[0].length},this.yytext+=e[0],this.match+=e[0],this.matches=e,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(e[0].length),this.matched+=e[0],r=this.performAction.call(this,this.yy,this,t,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),r)return r;if(this._backtrack){for(var a in i)this[a]=i[a];return!1}return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var e,t,r,n;this._more||(this.yytext="",this.match="");for(var i=this._currentRules(),a=0;a<i.length;a++)if(r=this._input.match(this.rules[i[a]]),r&&(!t||r[0].length>t[0].length)){if(t=r,n=a,this.options.backtrack_lexer){if(e=this.test_match(r,i[a]),e!==!1)return e;if(this._backtrack){t=!1;continue}return!1}if(!this.options.flex)break}return t?(e=this.test_match(t,i[n]),e!==!1?e:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var e=this.next();return e?e:this.lex()},begin:function(e){this.conditionStack.push(e)},popState:function(){var e=this.conditionStack.length-1;return e>0?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(e){return e=this.conditionStack.length-1-Math.abs(e||0),e>=0?this.conditionStack[e]:"INITIAL"},pushState:function(e){this.begin(e)},stateStackSize:function(){return this.conditionStack.length},options:{},performAction:function(e,t,r,n){switch(r){case 0:return 58;case 1:return 60;case 2:return 54;case 3:return 56;case 4:return 57;case 5:return 8;case 6:return 10;case 7:return 10;case 8:return 10;case 9:return 10;case 10:return 10;case 11:return 10;case 12:return 35;case 13:return 42;case 14:return 36;case 15:return 11;case 16:return 37;case 17:return 39;case 18:return 40;case 19:return 41;case 20:return 30;case 21:return 29;case 22:return 47;case 23:return 45;case 24:return 46;case 25:return 48;case 26:return 33;case 27:return 38;case 28:return 39;case 29:return 34;case 30:return 49;case 31:return 25;case 32:return 26;case 33:return 22;case 34:return 24;case 35:return 27;case 36:return 28;case 37:return"QUOTE";case 38:return 9;case 39:return"NEWLINE";case 40:return 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0],inclusive:!0}}};return e}();return X.lexer=et,e.prototype=X,X.Parser=e,new e}();"undefined"!=typeof e&&"undefined"!=typeof r&&(r.parser=i,r.Parser=i.Parser,r.parse=function(){return i.parse.apply(i,arguments)},r.main=function(t){t[1]||(console.log("Usage: "+t[0]+" FILE"),n.exit(1));var i=e("fs").readFileSync(e("path").normalize(t[1]),"utf8");return r.parser.parse(i)},"undefined"!=typeof t&&e.main===t&&r.main(n.argv.slice(1)))}).call(this,e("1YiZ5S"))},{"1YiZ5S":99,fs:97,path:98}],105:[function(e,t,r){(function(n){var i=function(){function e(){this.yy={}}var t=function(e,t,r,n){for(r=r||{},n=e.length;n--;r[e[n]]=t);return r},r=[1,11],n=[1,12],i=[1,17],a=[1,16],o=[6,8,28],u=[6,8,14,16,28,31,32],s=[6,8,14,16,18,28,31,32],c=[6,31,32],l=[1,35],h=[6,8,16,18,28,31,32],d={trace:function(){},yy:{},symbols_:{error:2,expressions:3,sequenceConfig:4,statements:5,EOF:6,SEQ:7,SPACE:8,DIR:9,newlines:10,statement:11,preStatement:12,alphaNum:13,COLON:14,text:15,DOT:16,message:17,EQUALS:18,callee:19,action:20,SQS:21,SQE:22,actorDefinition:23,messageDefinition:24,caller:25,answer:26,spaceList:27,NEWLINE:28,alphaNumStatement:29,alphaNumToken:30,ALPHA:31,NUM:32,textStatement:33,textToken:34,$accept:0,$end:1},terminals_:{2:"error",6:"EOF",7:"SEQ",8:"SPACE",9:"DIR",14:"COLON",16:"DOT",18:"EQUALS",21:"SQS",22:"SQE",28:"NEWLINE",31:"ALPHA",32:"NUM"},productions_:[0,[3,2],[3,1],[4,4],[5,3],[5,2],[5,3],[12,3],[11,1],[11,3],[11,5],[20,2],[23,3],[24,7],[25,1],[26,1],[19,1],[17,1],[27,2],[27,1],[10,2],[10,2],[10,1],[10,1],[13,1],[29,2],[29,1],[30,1],[30,1],[15,1],[33,2],[33,1],[34,1],[34,1]],performAction:function(e,t,r,n,i,a){var o=a.length-1;switch(i){case 1:case 5:this.$=a[o-1];break;case 3:this.$=a[o-1];break;case 4:case 6:this.$=a[o-2];break;case 7:this.$={a:a[o-2],b:a[o]};break;case 8:n.addActor(a[o].a,"actor",a[o].b),this.$="actor";break;case 9:n.addMessage(a[o-2].a,a[o-2].b,a[o]),this.$="message";break;case 10:n.addMessage(a[o-4].a,a[o-2],a[o],a[o-4].b),this.$="actor";break;case 11:this.$="action";break;case 12:this.$="actor";break;case 13:console.log("Got new message from="+a[o-6]+" to="+a[o-2]+" message="+a[o]+" answer="+a[o-4]),this.$="actor";break;case 24:case 27:case 28:case 29:case 33:this.$=a[o];break;case 25:case 30:this.$=a[o-1]+""+a[o]}},table:[{3:1,4:2,6:[1,3],7:[1,4]},{1:[3]},{5:5,11:6,12:7,13:8,29:9,30:10,31:r,32:n},{1:[2,2]},{8:[1,13]},{1:[2,1]},{6:[1,15],8:i,10:14,28:a},t(o,[2,8],{16:[1,18],18:[1,19]}),{14:[1,20],30:21,31:r,32:n},t(u,[2,24]),t(u,[2,26]),t(s,[2,27]),t(s,[2,28]),{9:[1,22]},{5:23,6:[1,24],11:6,12:7,13:8,29:9,30:10,31:r,32:n},{1:[2,5]},t(c,[2,22],{10:25,8:i,28:a}),t(c,[2,23],{10:26,8:i,28:a}),{13:28,17:27,29:9,30:10,31:r,32:n},{13:30,19:29,29:9,30:10,31:r,32:n},{8:l,15:31,30:34,31:r,32:n,33:32,34:33},t(u,[2,25]),{8:i,10:36,28:a},{1:[2,4]},{1:[2,6]},t(c,[2,20]),t(c,[2,21]),t(o,[2,9]),t(o,[2,17],{30:21,31:r,32:n}),{16:[1,37]},{16:[2,16],30:21,31:r,32:n},t([6,16,18,28],[2,7],{30:34,34:38,8:l,31:r,32:n}),t(h,[2,29]),t(h,[2,31]),t(h,[2,32]),t(h,[2,33]),t([31,32],[2,3]),{13:28,17:39,29:9,30:10,31:r,32:n},t(h,[2,30]),t(o,[2,10])],defaultActions:{3:[2,2],5:[2,1],15:[2,5],23:[2,4],24:[2,6]},parseError:function(e,t){if(!t.recoverable)throw new Error(e);this.trace(e)},parse:function(e){function t(){var e;return e=p.lex()||d,"number"!=typeof e&&(e=r.symbols_[e]||e),e}var r=this,n=[0],i=[null],a=[],o=this.table,u="",s=0,c=0,l=0,h=2,d=1,f=a.slice.call(arguments,1),p=Object.create(this.lexer),g={yy:{}};for(var m in this.yy)Object.prototype.hasOwnProperty.call(this.yy,m)&&(g.yy[m]=this.yy[m]);p.setInput(e,g.yy),g.yy.lexer=p,g.yy.parser=this,"undefined"==typeof p.yylloc&&(p.yylloc={});var y=p.yylloc;a.push(y);var v=p.options&&p.options.ranges;this.parseError="function"==typeof g.yy.parseError?g.yy.parseError:Object.getPrototypeOf(this).parseError;for(var b,w,x,A,_,E,k,D,C,F={};;){if(x=n[n.length-1],this.defaultActions[x]?A=this.defaultActions[x]:((null===b||"undefined"==typeof b)&&(b=t()),A=o[x]&&o[x][b]),"undefined"==typeof A||!A.length||!A[0]){var B="";C=[];for(E in o[x])this.terminals_[E]&&E>h&&C.push("'"+this.terminals_[E]+"'");B=p.showPosition?"Parse error on line "+(s+1)+":\n"+p.showPosition()+"\nExpecting "+C.join(", ")+", 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_;k&&(n=n.slice(0,-1*k*2),i=i.slice(0,-1*k),a=a.slice(0,-1*k)),n.push(this.productions_[A[1]][0]),i.push(F.$),a.push(F._$),D=o[n[n.length-2]][n[n.length-1]],n.push(D);
+break;case 3:return!0}}return!0}},f=function(){var e={EOF:1,parseError:function(e,t){if(!this.yy.parser)throw new Error(e);this.yy.parser.parseError(e,t)},setInput:function(e,t){return this.yy=t||this.yy||{},this._input=e,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},input:function(){var e=this._input[0];this.yytext+=e,this.yyleng++,this.offset++,this.match+=e,this.matched+=e;var t=e.match(/(?:\r\n?|\n).*/g);return t?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),e},unput:function(e){var t=e.length,r=e.split(/(?:\r\n?|\n)/g);this._input=e+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-t),this.offset-=t;var n=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),r.length-1&&(this.yylineno-=r.length-1);var i=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:r?(r.length===n.length?this.yylloc.first_column:0)+n[n.length-r.length].length-r[0].length:this.yylloc.first_column-t},this.options.ranges&&(this.yylloc.range=[i[0],i[0]+this.yyleng-t]),this.yyleng=this.yytext.length,this},more:function(){return this._more=!0,this},reject:function(){return this.options.backtrack_lexer?(this._backtrack=!0,this):this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},less:function(e){this.unput(this.match.slice(e))},pastInput:function(){var e=this.matched.substr(0,this.matched.length-this.match.length);return(e.length>20?"...":"")+e.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var e=this.match;return e.length<20&&(e+=this._input.substr(0,20-e.length)),(e.substr(0,20)+(e.length>20?"...":"")).replace(/\n/g,"")},showPosition:function(){var e=this.pastInput(),t=new Array(e.length+1).join("-");return e+this.upcomingInput()+"\n"+t+"^"},test_match:function(e,t){var r,n,i;if(this.options.backtrack_lexer&&(i={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(i.yylloc.range=this.yylloc.range.slice(0))),n=e[0].match(/(?:\r\n?|\n).*/g),n&&(this.yylineno+=n.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:n?n[n.length-1].length-n[n.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+e[0].length},this.yytext+=e[0],this.match+=e[0],this.matches=e,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(e[0].length),this.matched+=e[0],r=this.performAction.call(this,this.yy,this,t,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),r)return r;if(this._backtrack){for(var a in i)this[a]=i[a];return!1}return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var e,t,r,n;this._more||(this.yytext="",this.match="");for(var i=this._currentRules(),a=0;a<i.length;a++)if(r=this._input.match(this.rules[i[a]]),r&&(!t||r[0].length>t[0].length)){if(t=r,n=a,this.options.backtrack_lexer){if(e=this.test_match(r,i[a]),e!==!1)return e;if(this._backtrack){t=!1;continue}return!1}if(!this.options.flex)break}return t?(e=this.test_match(t,i[n]),e!==!1?e:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var e=this.next();return e?e:this.lex()},begin:function(e){this.conditionStack.push(e)},popState:function(){var e=this.conditionStack.length-1;return e>0?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(e){return e=this.conditionStack.length-1-Math.abs(e||0),e>=0?this.conditionStack[e]:"INITIAL"},pushState:function(e){this.begin(e)},stateStackSize:function(){return this.conditionStack.length},options:{},performAction:function(e,t,r,n){switch(r){case 0:return 28;case 1:return 7;case 2:return 9;case 3:return 32;case 4:return 14;case 5:return"MINUS";case 6:return"PLUS";case 7:return 18;case 8:return 31;case 9:return"SLASH";case 10:return"PS";case 11:return"PE";case 12:return 21;case 13:return 22;case 14:return 16;case 15:return 8;case 16:return 6}},rules:[/^(?:\n)/,/^(?:sequence\b)/,/^(?:TB\b)/,/^(?:[0-9]+)/,/^(?::)/,/^(?:-)/,/^(?:\+)/,/^(?:=)/,/^(?:[a-zåäöæøA-ZÅÄÖÆØ()]+)/,/^(?:\/)/,/^(?:\()/,/^(?:\))/,/^(?:\[)/,/^(?:\])/,/^(?:\.)/,/^(?:\s)/,/^(?:$)/],conditions:{INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16],inclusive:!0}}};return e}();return d.lexer=f,e.prototype=d,d.Parser=e,new e}();"undefined"!=typeof e&&"undefined"!=typeof r&&(r.parser=i,r.Parser=i.Parser,r.parse=function(){return i.parse.apply(i,arguments)},r.main=function(t){t[1]||(console.log("Usage: "+t[0]+" FILE"),n.exit(1));var i=e("fs").readFileSync(e("path").normalize(t[1]),"utf8");return r.parser.parse(i)},"undefined"!=typeof t&&e.main===t&&r.main(n.argv.slice(1)))}).call(this,e("1YiZ5S"))},{"1YiZ5S":99,fs:97,path:98}],106:[function(e,t,r){var n={},i=[],a=[];r.addActor=function(e,t,r){n[e]={name:t,description:r},i.push(e)},r.addMessage=function(e,t,r,n){a.push({from:e,to:t,message:r,answer:n})},r.getMessages=function(){return a},r.getActors=function(){return n},r.getActorKeys=function(){return i},r.clear=function(){n={},a=[]}},{}],107:[function(e,t){var r=e("./parser/sequence").parser;r.yy=e("./sequenceDb"),t.exports.draw=function(e){r.yy.clear(),r.parse(e);var t,n=r.yy.getActors(),i=r.yy.getActorKeys();for(t=0;t<i.length;t++){var a=(i[t],50),o=50,u=10;console.log("x=: "+(a+t*o+150*t));var s=d3.select("#mermaidChart0"),c=s.append("g");c.append("rect").attr("x",a+t*o+150*t).attr("y",u).attr("fill","#eaeaea").attr("stroke","#666").attr("width",150).attr("height",65).attr("rx",3).attr("ry",3),c.append("text").attr("x",a+t*o+150*t+75).attr("y",u+37.5).style("text-anchor","middle").text(n[i[t]].description)}}},{"./parser/sequence":105,"./sequenceDb":106}],108:[function(e,t){t.exports.detectType=function(e){return e.match(/^\s*sequence/)?"sequence":"graph"}},{}]},{},[102]);
\ No newline at end of file
diff --git a/dist/mermaid.slim.js b/dist/mermaid.slim.js
index 24207e01f..9f05bcac0 100644
--- a/dist/mermaid.slim.js
+++ b/dist/mermaid.slim.js
@@ -1,6 +1,5557 @@
 (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+/**
+ * @license
+ * Copyright (c) 2012-2013 Chris Pettitt
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+module.exports =  {
+  graphlib: require("./lib/graphlib"),
+  dagre: require("./lib/dagre"),
+  intersect: require("./lib/intersect"),
+  render: require("./lib/render"),
+  util: require("./lib/util"),
+  version: require("./lib/version")
+};
 
-},{}],2:[function(require,module,exports){
+},{"./lib/dagre":8,"./lib/graphlib":9,"./lib/intersect":10,"./lib/render":23,"./lib/util":25,"./lib/version":26}],2:[function(require,module,exports){
+var util = require("./util");
+
+module.exports = {
+  "default": normal,
+  "normal": normal,
+  "vee": vee
+};
+
+function normal(parent, id, edge, type) {
+  var marker = parent.append("marker")
+    .attr("id", id)
+    .attr("viewBox", "0 0 10 10")
+    .attr("refX", 9)
+    .attr("refY", 5)
+    .attr("markerUnits", "strokeWidth")
+    .attr("markerWidth", 8)
+    .attr("markerHeight", 6)
+    .attr("orient", "auto");
+
+  var path = marker.append("path")
+    .attr("d", "M 0 0 L 10 5 L 0 10 z")
+    .style("stroke-width", 1)
+    .style("stroke-dasharray", "1,0");
+  util.applyStyle(path, edge[type + "Style"]);
+}
+
+function vee(parent, id, edge, type) {
+  var marker = parent.append("marker")
+    .attr("id", id)
+    .attr("viewBox", "0 0 10 10")
+    .attr("refX", 9)
+    .attr("refY", 5)
+    .attr("markerUnits", "strokeWidth")
+    .attr("markerWidth", 8)
+    .attr("markerHeight", 6)
+    .attr("orient", "auto");
+
+  var path = marker.append("path")
+    .attr("d", "M 0 0 L 10 5 L 0 10 L 4 5 z")
+    .style("stroke-width", 1)
+    .style("stroke-dasharray", "1,0");
+  util.applyStyle(path, edge[type + "Style"]);
+}
+
+},{"./util":25}],3:[function(require,module,exports){
+var util = require("./util");
+
+module.exports = createClusters;
+
+function createClusters(selection, g) {
+  var clusters = g.nodes().filter(function(v) { return util.isSubgraph(g, v); }),
+      svgClusters = selection.selectAll("g.cluster")
+        .data(clusters, function(v) { return v; });
+
+  svgClusters.enter()
+    .append("g")
+      .attr("class", "cluster")
+      .style("opacity", 0)
+      .append("rect");
+  util.applyTransition(svgClusters.exit(), g)
+    .style("opacity", 0)
+    .remove();
+
+  util.applyTransition(svgClusters, g)
+    .style("opacity", 1);
+
+  util.applyTransition(svgClusters.selectAll("rect"), g)
+    .attr("width", function(v) { return g.node(v).width; })
+    .attr("height", function(v) { return g.node(v).height; })
+    .attr("x", function(v) {
+      var node = g.node(v);
+      return node.x - node.width / 2;
+    })
+    .attr("y", function(v) {
+      var node = g.node(v);
+      return node.y - node.height / 2;
+    });
+}
+
+},{"./util":25}],4:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    addLabel = require("./label/add-label"),
+    util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = createEdgeLabels;
+
+function createEdgeLabels(selection, g) {
+  var svgEdgeLabels = selection.selectAll("g.edgeLabel")
+    .data(g.edges(), function(e) { return util.edgeToId(e); })
+    .classed("update", true);
+
+  svgEdgeLabels.selectAll("*").remove();
+  svgEdgeLabels.enter()
+    .append("g")
+      .classed("edgeLabel", true)
+      .style("opacity", 0);
+  svgEdgeLabels.each(function(e) {
+    var edge = g.edge(e),
+        label = addLabel(d3.select(this), g.edge(e), 0, 0).classed("label", true),
+        bbox = label.node().getBBox();
+
+    if (edge.labelId) { label.attr("id", edge.labelId); }
+    if (!_.has(edge, "width")) { edge.width = bbox.width; }
+    if (!_.has(edge, "height")) { edge.height = bbox.height; }
+  });
+
+  util.applyTransition(svgEdgeLabels.exit(), g)
+    .style("opacity", 0)
+    .remove();
+
+  return svgEdgeLabels;
+}
+
+},{"./d3":7,"./label/add-label":18,"./lodash":20,"./util":25}],5:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    intersectNode = require("./intersect/intersect-node"),
+    util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = createEdgePaths;
+
+function createEdgePaths(selection, g, arrows) {
+  var svgPaths = selection.selectAll("g.edgePath")
+    .data(g.edges(), function(e) { return util.edgeToId(e); })
+    .classed("update", true);
+
+  enter(svgPaths, g);
+  exit(svgPaths, g);
+
+  util.applyTransition(svgPaths, g)
+    .style("opacity", 1);
+
+  svgPaths.selectAll("path.path")
+    .each(function(e) {
+      var edge = g.edge(e);
+      edge.arrowheadId = _.uniqueId("arrowhead");
+
+      var domEdge = d3.select(this)
+        .attr("marker-end", function() {
+          return "url(#" + edge.arrowheadId + ")";
+        })
+        .style("fill", "none");
+
+      util.applyTransition(domEdge, g)
+        .attr("d", function(e) { return calcPoints(g, e); });
+
+      if (edge.id) { domEdge.attr("id", edge.id); }
+      util.applyStyle(domEdge, edge.style);
+    });
+
+  svgPaths.selectAll("defs *").remove();
+  svgPaths.selectAll("defs")
+    .each(function(e) {
+      var edge = g.edge(e),
+          arrowhead = arrows[edge.arrowhead];
+      arrowhead(d3.select(this), edge.arrowheadId, edge, "arrowhead");
+    });
+
+  return svgPaths;
+}
+
+function calcPoints(g, e) {
+  var edge = g.edge(e),
+      tail = g.node(e.v),
+      head = g.node(e.w),
+      points = edge.points.slice(1, edge.points.length - 1);
+  points.unshift(intersectNode(tail, points[0]));
+  points.push(intersectNode(head, points[points.length - 1]));
+
+  return createLine(edge, points);
+}
+
+function createLine(edge, points) {
+  var line = d3.svg.line()
+    .x(function(d) { return d.x; })
+    .y(function(d) { return d.y; });
+
+  if (_.has(edge, "lineInterpolate")) {
+    line.interpolate(edge.lineInterpolate);
+  }
+
+  if (_.has(edge, "lineTension")) {
+    line.tension(Number(edge.lineTension));
+  }
+
+  return line(points);
+}
+
+function getCoords(elem) {
+  var bbox = elem.getBBox(),
+      matrix = elem.getTransformToElement(elem.ownerSVGElement)
+        .translate(bbox.width / 2, bbox.height / 2);
+  return { x: matrix.e, y: matrix.f };
+}
+
+function enter(svgPaths, g) {
+  var svgPathsEnter = svgPaths.enter()
+    .append("g")
+      .attr("class", "edgePath")
+      .style("opacity", 0);
+  svgPathsEnter.append("path")
+    .attr("class", "path")
+    .attr("d", function(e) {
+      var edge = g.edge(e),
+          sourceElem = g.node(e.v).elem,
+          points = _.range(edge.points.length).map(function() { return getCoords(sourceElem); });
+      return createLine(edge, points);
+    });
+  svgPathsEnter.append("defs");
+}
+
+function exit(svgPaths, g) {
+  var svgPathExit = svgPaths.exit();
+  util.applyTransition(svgPathExit, g)
+    .style("opacity", 0)
+    .remove();
+
+  util.applyTransition(svgPathExit.select("path.path"), g)
+    .attr("d", function(e) {
+      var source = g.node(e.v);
+
+      if (source) {
+        var points = _.range(this.pathSegList.length).map(function() { return source; });
+        return createLine({}, points);
+      } else {
+        return d3.select(this).attr("d");
+      }
+    });
+}
+
+},{"./d3":7,"./intersect/intersect-node":14,"./lodash":20,"./util":25}],6:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    addLabel = require("./label/add-label"),
+    util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = createNodes;
+
+function createNodes(selection, g, shapes) {
+  var simpleNodes = g.nodes().filter(function(v) { return !util.isSubgraph(g, v); });
+  var svgNodes = selection.selectAll("g.node")
+    .data(simpleNodes, function(v) { return v; })
+    .classed("update", true);
+
+  svgNodes.selectAll("*").remove();
+  svgNodes.enter()
+    .append("g")
+      .attr("class", "node")
+      .style("opacity", 0);
+  svgNodes.each(function(v) {
+    var node = g.node(v),
+        thisGroup = d3.select(this),
+        labelGroup = thisGroup.append("g").attr("class", "label"),
+        labelDom = addLabel(labelGroup, node),
+        shape = shapes[node.shape],
+        bbox = labelDom.node().getBBox();
+
+    node.elem = this;
+
+    if (node.id) { thisGroup.attr("id", node.id); }
+    if (node.labelId) { labelGroup.attr("id", node.labelId); }
+    util.applyClass(thisGroup, node.class, (thisGroup.classed("update") ? "update " : "") + "node");
+
+    if (_.has(node, "width")) { bbox.width = node.width; }
+    if (_.has(node, "height")) { bbox.height = node.height; }
+
+    bbox.width += node.paddingLeft + node.paddingRight;
+    bbox.height += node.paddingTop + node.paddingBottom;
+    labelGroup.attr("transform", "translate(" +
+      ((node.paddingLeft - node.paddingRight) / 2) + "," +
+      ((node.paddingTop - node.paddingBottom) / 2) + ")");
+
+    var shapeSvg = shape(d3.select(this), bbox, node);
+    util.applyStyle(shapeSvg, node.style);
+
+    var shapeBBox = shapeSvg.node().getBBox();
+    node.width = shapeBBox.width;
+    node.height = shapeBBox.height;
+  });
+
+  util.applyTransition(svgNodes.exit(), g)
+    .style("opacity", 0)
+    .remove();
+
+  return svgNodes;
+}
+
+},{"./d3":7,"./label/add-label":18,"./lodash":20,"./util":25}],7:[function(require,module,exports){
+// Stub to get D3 either via NPM or from the global object
+module.exports = window.d3;
+
+},{}],8:[function(require,module,exports){
+/* global window */
+
+var dagre;
+
+if (require) {
+  try {
+    dagre = require("dagre");
+  } catch (e) {}
+}
+
+if (!dagre) {
+  dagre = window.dagre;
+}
+
+module.exports = dagre;
+
+},{"dagre":27}],9:[function(require,module,exports){
+/* global window */
+
+var graphlib;
+
+if (require) {
+  try {
+    graphlib = require("graphlib");
+  } catch (e) {}
+}
+
+if (!graphlib) {
+  graphlib = window.graphlib;
+}
+
+module.exports = graphlib;
+
+},{"graphlib":77}],10:[function(require,module,exports){
+module.exports = {
+  node: require("./intersect-node"),
+  circle: require("./intersect-circle"),
+  ellipse: require("./intersect-ellipse"),
+  polygon: require("./intersect-polygon"),
+  rect: require("./intersect-rect")
+};
+
+},{"./intersect-circle":11,"./intersect-ellipse":12,"./intersect-node":14,"./intersect-polygon":15,"./intersect-rect":16}],11:[function(require,module,exports){
+var intersectEllipse = require("./intersect-ellipse");
+
+module.exports = intersectCircle;
+
+function intersectCircle(node, rx, point) {
+  return intersectEllipse(node, rx, rx, point);
+}
+
+},{"./intersect-ellipse":12}],12:[function(require,module,exports){
+module.exports = intersectEllipse;
+
+function intersectEllipse(node, rx, ry, point) {
+  // Formulae from: http://mathworld.wolfram.com/Ellipse-LineIntersection.html
+
+  var cx = node.x;
+  var cy = node.y;
+
+  var px = cx - point.x;
+  var py = cy - point.y;
+
+  var det = Math.sqrt(rx * rx * py * py + ry * ry * px * px);
+
+  var dx = Math.abs(rx * ry * px / det);
+  if (point.x < cx) {
+    dx = -dx;
+  }
+  var dy = Math.abs(rx * ry * py / det);
+  if (point.y < cy) {
+    dy = -dy;
+  }
+
+  return {x: cx + dx, y: cy + dy};
+}
+
+
+},{}],13:[function(require,module,exports){
+module.exports = intersectLine;
+
+/*
+ * Returns the point at which two lines, p and q, intersect or returns
+ * undefined if they do not intersect.
+ */
+function intersectLine(p1, p2, q1, q2) {
+  // Algorithm from J. Avro, (ed.) Graphics Gems, No 2, Morgan Kaufmann, 1994,
+  // p7 and p473.
+
+  var a1, a2, b1, b2, c1, c2;
+  var r1, r2 , r3, r4;
+  var denom, offset, num;
+  var x, y;
+
+  // Compute a1, b1, c1, where line joining points 1 and 2 is F(x,y) = a1 x +
+  // b1 y + c1 = 0.
+  a1 = p2.y - p1.y;
+  b1 = p1.x - p2.x;
+  c1 = (p2.x * p1.y) - (p1.x * p2.y);
+
+  // Compute r3 and r4.
+  r3 = ((a1 * q1.x) + (b1 * q1.y) + c1);
+  r4 = ((a1 * q2.x) + (b1 * q2.y) + c1);
+
+  // Check signs of r3 and r4. If both point 3 and point 4 lie on
+  // same side of line 1, the line segments do not intersect.
+  if ((r3 !== 0) && (r4 !== 0) && sameSign(r3, r4)) {
+    return /*DONT_INTERSECT*/;
+  }
+
+  // Compute a2, b2, c2 where line joining points 3 and 4 is G(x,y) = a2 x + b2 y + c2 = 0
+  a2 = q2.y - q1.y;
+  b2 = q1.x - q2.x;
+  c2 = (q2.x * q1.y) - (q1.x * q2.y);
+
+  // Compute r1 and r2
+  r1 = (a2 * p1.x) + (b2 * p1.yy) + c2;
+  r2 = (a2 * p2.x) + (b2 * p2.y) + c2;
+
+  // Check signs of r1 and r2. If both point 1 and point 2 lie
+  // on same side of second line segment, the line segments do
+  // not intersect.
+  if ((r1 !== 0) && (r2 !== 0) && (sameSign(r1, r2))) {
+    return /*DONT_INTERSECT*/;
+  }
+
+  // Line segments intersect: compute intersection point.
+  denom = (a1 * b2) - (a2 * b1);
+  if (denom === 0) {
+    return /*COLLINEAR*/;
+  }
+
+  offset = Math.abs(denom / 2);
+
+  // The denom/2 is to get rounding instead of truncating. It
+  // is added or subtracted to the numerator, depending upon the
+  // sign of the numerator.
+  num = (b1 * c2) - (b2 * c1);
+  x = (num < 0) ? ((num - offset) / denom) : ((num + offset) / denom);
+
+  num = (a2 * c1) - (a1 * c2);
+  y = (num < 0) ? ((num - offset) / denom) : ((num + offset) / denom);
+
+  return { x: x, y: y };
+}
+
+function sameSign(r1, r2) {
+  return r1 * r2 > 0;
+}
+
+},{}],14:[function(require,module,exports){
+module.exports = intersectNode;
+
+function intersectNode(node, point) {
+  return node.intersect(point);
+}
+
+},{}],15:[function(require,module,exports){
+var intersectLine = require("./intersect-line");
+
+module.exports = intersectPolygon;
+
+/*
+ * Returns the point ({x, y}) at which the point argument intersects with the
+ * node argument assuming that it has the shape specified by polygon.
+ */
+function intersectPolygon(node, polyPoints, point) {
+  var x1 = node.x;
+  var y1 = node.y;
+
+  var intersections = [];
+
+  var minX = Number.POSITIVE_INFINITY,
+      minY = Number.POSITIVE_INFINITY;
+  polyPoints.forEach(function(entry) {
+    minX = Math.min(minX, entry.x);
+    minY = Math.min(minY, entry.y);
+  });
+
+  var left = x1 - node.width / 2 - minX;
+  var top =  y1 - node.height / 2 - minY;
+
+  for (var i = 0; i < polyPoints.length; i++) {
+    var p1 = polyPoints[i];
+    var p2 = polyPoints[i < polyPoints.length - 1 ? i + 1 : 0];
+    var intersect = intersectLine(node, point,
+      {x: left + p1.x, y: top + p1.y}, {x: left + p2.x, y: top + p2.y});
+    if (intersect) {
+      intersections.push(intersect);
+    }
+  }
+
+  if (!intersections.length) {
+    console.log("NO INTERSECTION FOUND, RETURN NODE CENTER", node);
+    return node;
+  }
+
+  if (intersections.length > 1) {
+    // More intersections, find the one nearest to edge end point
+    intersections.sort(function(p, q) {
+      var pdx = p.x - point.x,
+          pdy = p.y - point.y,
+          distp = Math.sqrt(pdx * pdx + pdy * pdy),
+
+          qdx = q.x - point.x,
+          qdy = q.y - point.y,
+          distq = Math.sqrt(qdx * qdx + qdy * qdy);
+
+      return (distp < distq) ? -1 : (distp === distq ? 0 : 1);
+    });
+  }
+  return intersections[0];
+}
+
+},{"./intersect-line":13}],16:[function(require,module,exports){
+module.exports = intersectRect;
+
+function intersectRect(node, point) {
+  var x = node.x;
+  var y = node.y;
+
+  // Rectangle intersection algorithm from:
+  // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes
+  var dx = point.x - x;
+  var dy = point.y - y;
+  var w = node.width / 2;
+  var h = node.height / 2;
+
+  var sx, sy;
+  if (Math.abs(dy) * w > Math.abs(dx) * h) {
+    // Intersection is top or bottom of rect.
+    if (dy < 0) {
+      h = -h;
+    }
+    sx = dy === 0 ? 0 : h * dx / dy;
+    sy = h;
+  } else {
+    // Intersection is left or right of rect.
+    if (dx < 0) {
+      w = -w;
+    }
+    sx = w;
+    sy = dx === 0 ? 0 : w * dy / dx;
+  }
+
+  return {x: x + sx, y: y + sy};
+}
+
+},{}],17:[function(require,module,exports){
+var util = require("../util");
+
+module.exports = addHtmlLabel;
+
+function addHtmlLabel(root, node) {
+  var fo = root
+    .append("foreignObject")
+      .attr("width", "100000");
+
+  var div = fo
+    .append("xhtml:div");
+
+  var label = node.label;
+  switch(typeof label) {
+    case "function":
+      div.insert(label);
+      break;
+    case "object":
+      // Currently we assume this is a DOM object.
+      div.insert(function() { return label; });
+      break;
+    default: div.html(label);
+  }
+
+  util.applyStyle(div, node.labelStyle);
+  div.style("display", "inline-block");
+  // Fix for firefox
+  div.style("white-space", "nowrap");
+
+  // TODO find a better way to get dimensions for foreignObjects...
+  var w, h;
+  div
+    .each(function() {
+      w = this.clientWidth;
+      h = this.clientHeight;
+    });
+
+  fo
+    .attr("width", w)
+    .attr("height", h);
+
+  return fo;
+}
+
+},{"../util":25}],18:[function(require,module,exports){
+var addTextLabel = require("./add-text-label"),
+    addHtmlLabel = require("./add-html-label");
+
+module.exports = addLabel;
+
+function addLabel(root, node) {
+  var label = node.label;
+  var labelSvg = root.append("g");
+
+  // Allow the label to be a string, a function that returns a DOM element, or
+  // a DOM element itself.
+  if (typeof label !== "string" || node.labelType === "html") {
+    addHtmlLabel(labelSvg, node);
+  } else {
+    addTextLabel(labelSvg, node);
+  }
+
+  var labelBBox = labelSvg.node().getBBox();
+  labelSvg.attr("transform",
+                "translate(" + (-labelBBox.width / 2) + "," + (-labelBBox.height / 2) + ")");
+
+  return labelSvg;
+}
+
+},{"./add-html-label":17,"./add-text-label":19}],19:[function(require,module,exports){
+var util = require("../util");
+
+module.exports = addTextLabel;
+
+/*
+ * Attaches a text label to the specified root. Handles escape sequences.
+ */
+function addTextLabel(root, node) {
+  var domNode = root.append("text");
+
+  var lines = processEscapeSequences(node.label).split("\n");
+  for (var i = 0; i < lines.length; i++) {
+    domNode
+      .append("tspan")
+        .attr("xml:space", "preserve")
+        .attr("dy", "1em")
+        .attr("x", "1")
+        .text(lines[i]);
+  }
+
+  util.applyStyle(domNode, node.labelStyle);
+
+  return domNode;
+}
+
+function processEscapeSequences(text) {
+  var newText = "",
+      escaped = false,
+      ch;
+  for (var i = 0; i < text.length; ++i) {
+    ch = text[i];
+    if (escaped) {
+      switch(ch) {
+        case "n": newText += "\n"; break;
+        default: newText += ch;
+      }
+      escaped = false;
+    } else if (ch === "\\") {
+      escaped = true;
+    } else {
+      newText += ch;
+    }
+  }
+  return newText;
+}
+
+},{"../util":25}],20:[function(require,module,exports){
+/* global window */
+
+var lodash;
+
+if (require) {
+  try {
+    lodash = require("lodash");
+  } catch (e) {}
+}
+
+if (!lodash) {
+  lodash = window._;
+}
+
+module.exports = lodash;
+
+},{"lodash":101}],21:[function(require,module,exports){
+"use strict";
+
+var util = require("./util"),
+    d3 = require("./d3"),
+    _ = require("./lodash");
+
+module.exports = positionEdgeLabels;
+
+function positionEdgeLabels(selection, g) {
+  var created = selection.filter(function() { return !d3.select(this).classed("update"); });
+
+  function translate(e) {
+    var edge = g.edge(e);
+    return _.has(edge, "x") ? "translate(" + edge.x + "," + edge.y + ")" : "";
+  }
+
+  created.attr("transform", translate);
+
+  util.applyTransition(selection, g)
+    .style("opacity", 1)
+    .attr("transform", translate);
+}
+
+},{"./d3":7,"./lodash":20,"./util":25}],22:[function(require,module,exports){
+"use strict";
+
+var util = require("./util"),
+    d3 = require("./d3");
+
+module.exports = positionNodes;
+
+function positionNodes(selection, g) {
+  var created = selection.filter(function() { return !d3.select(this).classed("update"); });
+
+  function translate(v) {
+    var node = g.node(v);
+    return "translate(" + node.x + "," + node.y + ")";
+  }
+
+  created.attr("transform", translate);
+
+  util.applyTransition(selection, g)
+    .style("opacity", 1)
+    .attr("transform", translate);
+}
+
+},{"./d3":7,"./util":25}],23:[function(require,module,exports){
+var _ = require("./lodash"),
+    layout = require("./dagre").layout;
+
+module.exports = render;
+
+// This design is based on http://bost.ocks.org/mike/chart/.
+function render() {
+  var createNodes = require("./create-nodes"),
+      createClusters = require("./create-clusters"),
+      createEdgeLabels = require("./create-edge-labels"),
+      createEdgePaths = require("./create-edge-paths"),
+      positionNodes = require("./position-nodes"),
+      positionEdgeLabels = require("./position-edge-labels"),
+      shapes = require("./shapes"),
+      arrows = require("./arrows");
+
+  var fn = function(svg, g) {
+    preProcessGraph(g);
+
+    var outputGroup = createOrSelectGroup(svg, "output"),
+        clustersGroup = createOrSelectGroup(outputGroup, "clusters"),
+        edgePathsGroup = createOrSelectGroup(outputGroup, "edgePaths"),
+        edgeLabels = createEdgeLabels(createOrSelectGroup(outputGroup, "edgeLabels"), g),
+        nodes = createNodes(createOrSelectGroup(outputGroup, "nodes"), g, shapes);
+
+    layout(g);
+
+    positionNodes(nodes, g);
+    positionEdgeLabels(edgeLabels, g);
+    createEdgePaths(edgePathsGroup, g, arrows);
+    createClusters(clustersGroup, g);
+
+    postProcessGraph(g);
+  };
+
+  fn.createNodes = function(value) {
+    if (!arguments.length) return createNodes;
+    createNodes = value;
+    return fn;
+  };
+
+  fn.createClusters = function(value) {
+    if (!arguments.length) return createClusters;
+    createClusters = value;
+    return fn;
+  };
+
+  fn.createEdgeLabels = function(value) {
+    if (!arguments.length) return createEdgeLabels;
+    createEdgeLabels = value;
+    return fn;
+  };
+
+  fn.createEdgePaths = function(value) {
+    if (!arguments.length) return createEdgePaths;
+    createEdgePaths = value;
+    return fn;
+  };
+
+  fn.shapes = function(value) {
+    if (!arguments.length) return shapes;
+    shapes = value;
+    return fn;
+  };
+
+  fn.arrows = function(value) {
+    if (!arguments.length) return arrows;
+    arrows = value;
+    return fn;
+  };
+
+  return fn;
+}
+
+var NODE_DEFAULT_ATTRS = {
+  paddingLeft: 10,
+  paddingRight: 10,
+  paddingTop: 10,
+  paddingBottom: 10,
+  rx: 0,
+  ry: 0,
+  shape: "rect"
+};
+
+var EDGE_DEFAULT_ATTRS = {
+  arrowhead: "normal",
+  lineInterpolate: "linear"
+};
+
+function preProcessGraph(g) {
+  g.nodes().forEach(function(v) {
+    var node = g.node(v);
+    if (!_.has(node, "label")) { node.label = v; }
+
+    if (_.has(node, "paddingX")) {
+      _.defaults(node, {
+        paddingLeft: node.paddingX,
+        paddingRight: node.paddingX
+      });
+    }
+
+    if (_.has(node, "paddingY")) {
+      _.defaults(node, {
+        paddingTop: node.paddingY,
+        paddingBottom: node.paddingY
+      });
+    }
+
+    if (_.has(node, "padding")) {
+      _.defaults(node, {
+        paddingLeft: node.padding,
+        paddingRight: node.padding,
+        paddingTop: node.padding,
+        paddingBottom: node.padding
+      });
+    }
+
+    _.defaults(node, NODE_DEFAULT_ATTRS);
+
+    _.each(["paddingLeft", "paddingRight", "paddingTop", "paddingBottom"], function(k) {
+      node[k] = Number(node[k]);
+    });
+
+    // Save dimensions for restore during post-processing
+    if (_.has(node, "width")) { node._prevWidth = node.width; }
+    if (_.has(node, "height")) { node._prevHeight = node.height; }
+  });
+
+  g.edges().forEach(function(e) {
+    var edge = g.edge(e);
+    if (!_.has(edge, "label")) { edge.label = ""; }
+    _.defaults(edge, EDGE_DEFAULT_ATTRS);
+  });
+}
+
+function postProcessGraph(g) {
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+
+    // Restore original dimensions
+    if (_.has(node, "_prevWidth")) {
+      node.width = node._prevWidth;
+    } else {
+      delete node.width;
+    }
+
+    if (_.has(node, "_prevHeight")) {
+      node.height = node._prevHeight;
+    } else {
+      delete node.height;
+    }
+
+    delete node._prevWidth;
+    delete node._prevHeight;
+  });
+}
+
+function createOrSelectGroup(root, name) {
+  var selection = root.select("g." + name);
+  if (selection.empty()) {
+    selection = root.append("g").attr("class", name);
+  }
+  return selection;
+}
+
+},{"./arrows":2,"./create-clusters":3,"./create-edge-labels":4,"./create-edge-paths":5,"./create-nodes":6,"./dagre":8,"./lodash":20,"./position-edge-labels":21,"./position-nodes":22,"./shapes":24}],24:[function(require,module,exports){
+"use strict";
+
+var intersectRect = require("./intersect/intersect-rect"),
+    intersectEllipse = require("./intersect/intersect-ellipse"),
+    intersectCircle = require("./intersect/intersect-circle");
+
+module.exports = {
+  rect: rect,
+  ellipse: ellipse,
+  circle: circle
+};
+
+function rect(parent, bbox, node) {
+  var shapeSvg = parent.insert("rect", ":first-child")
+        .attr("rx", node.rx)
+        .attr("ry", node.ry)
+        .attr("x", -bbox.width / 2)
+        .attr("y", -bbox.height / 2)
+        .attr("width", bbox.width)
+        .attr("height", bbox.height);
+
+  node.intersect = function(point) {
+    return intersectRect(node, point);
+  };
+
+  return shapeSvg;
+}
+
+function ellipse(parent, bbox, node) {
+  var rx = bbox.width / 2,
+      ry = bbox.height / 2,
+      shapeSvg = parent.insert("ellipse", ":first-child")
+        .attr("x", -bbox.width / 2)
+        .attr("y", -bbox.height / 2)
+        .attr("rx", rx)
+        .attr("ry", ry);
+
+  node.intersect = function(point) {
+    return intersectEllipse(node, rx, ry, point);
+  };
+
+  return shapeSvg;
+}
+
+function circle(parent, bbox, node) {
+  var r = Math.max(bbox.width, bbox.height) / 2,
+      shapeSvg = parent.insert("circle", ":first-child")
+        .attr("x", -bbox.width / 2)
+        .attr("y", -bbox.height / 2)
+        .attr("r", r);
+
+  node.intersect = function(point) {
+    return intersectCircle(node, r, point);
+  };
+
+  return shapeSvg;
+}
+
+},{"./intersect/intersect-circle":11,"./intersect/intersect-ellipse":12,"./intersect/intersect-rect":16}],25:[function(require,module,exports){
+var _ = require("./lodash");
+
+// Public utility functions
+module.exports = {
+  isSubgraph: isSubgraph,
+  edgeToId: edgeToId,
+  applyStyle: applyStyle,
+  applyClass: applyClass,
+  applyTransition: applyTransition
+};
+
+/*
+ * Returns true if the specified node in the graph is a subgraph node. A
+ * subgraph node is one that contains other nodes.
+ */
+function isSubgraph(g, v) {
+  return !!g.children(v).length;
+}
+
+function edgeToId(e) {
+  return escapeId(e.v) + ":" + escapeId(e.w) + ":" + escapeId(e.name);
+}
+
+var ID_DELIM = /:/g;
+function escapeId(str) {
+  return str ? String(str).replace(ID_DELIM, "\\:") : "";
+}
+
+function applyStyle(dom, styleFn) {
+  if (styleFn) {
+    dom.attr("style", styleFn);
+  }
+}
+
+function applyClass(dom, classFn, otherClasses) {
+  if (classFn) {
+    dom
+      .attr("class", classFn)
+      .attr("class", otherClasses + " " + dom.attr("class"));
+  }
+}
+
+function applyTransition(selection, g) {
+  var graph = g.graph();
+
+  if (_.isPlainObject(graph)) {
+    var transition = graph.transition;
+    if (_.isFunction(transition)) {
+      return transition(selection);
+    }
+  }
+
+  return selection;
+}
+
+},{"./lodash":20}],26:[function(require,module,exports){
+module.exports = "0.3.2";
+
+},{}],27:[function(require,module,exports){
+/*
+Copyright (c) 2012-2014 Chris Pettitt
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+module.exports = {
+  graphlib: require("./lib/graphlib"),
+
+  layout: require("./lib/layout"),
+  debug: require("./lib/debug"),
+  util: {
+    time: require("./lib/util").time,
+    notime: require("./lib/util").notime
+  },
+  version: require("./lib/version")
+};
+
+},{"./lib/debug":32,"./lib/graphlib":33,"./lib/layout":35,"./lib/util":55,"./lib/version":56}],28:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    greedyFAS = require("./greedy-fas");
+
+module.exports = {
+  run: run,
+  undo: undo
+};
+
+function run(g) {
+  var fas = (g.graph().acyclicer === "greedy"
+                ? greedyFAS(g, weightFn(g))
+                : dfsFAS(g));
+  _.each(fas, function(e) {
+    var label = g.edge(e);
+    g.removeEdge(e);
+    label.forwardName = e.name;
+    label.reversed = true;
+    g.setEdge(e.w, e.v, label, _.uniqueId("rev"));
+  });
+
+  function weightFn(g) {
+    return function(e) {
+      return g.edge(e).weight;
+    };
+  }
+}
+
+function dfsFAS(g) {
+  var fas = [],
+      stack = {},
+      visited = {};
+
+  function dfs(v) {
+    if (_.has(visited, v)) {
+      return;
+    }
+    visited[v] = true;
+    stack[v] = true;
+    _.each(g.outEdges(v), function(e) {
+      if (_.has(stack, e.w)) {
+        fas.push(e);
+      } else {
+        dfs(e.w);
+      }
+    });
+    delete stack[v];
+  }
+
+  _.each(g.nodes(), dfs);
+  return fas;
+}
+
+function undo(g) {
+  _.each(g.edges(), function(e) {
+    var label = g.edge(e);
+    if (label.reversed) {
+      g.removeEdge(e);
+
+      var forwardName = label.forwardName;
+      delete label.reversed;
+      delete label.forwardName;
+      g.setEdge(e.w, e.v, label, forwardName);
+    }
+  });
+}
+
+},{"./greedy-fas":34,"./lodash":36}],29:[function(require,module,exports){
+var _ = require("./lodash"),
+    util = require("./util");
+
+module.exports = addBorderSegments;
+
+function addBorderSegments(g) {
+  function dfs(v) {
+    var children = g.children(v),
+        node = g.node(v);
+    if (children.length) {
+      _.each(children, dfs);
+    }
+
+    if (_.has(node, "minRank")) {
+      node.borderLeft = [];
+      node.borderRight = [];
+      for (var rank = node.minRank, maxRank = node.maxRank + 1;
+           rank < maxRank;
+           ++rank) {
+        addBorderNode(g, "borderLeft", "_bl", v, node, rank);
+        addBorderNode(g, "borderRight", "_br", v, node, rank);
+      }
+    }
+  }
+
+  _.each(g.children(), dfs);
+}
+
+function addBorderNode(g, prop, prefix, sg, sgNode, rank) {
+  var label = { width: 0, height: 0, rank: rank },
+      prev = sgNode[prop][rank - 1],
+      curr = util.addDummyNode(g, "border", label, prefix);
+  sgNode[prop][rank] = curr;
+  g.setParent(curr, sg);
+  if (prev) {
+    g.setEdge(prev, curr, { weight: 1 });
+  }
+}
+
+},{"./lodash":36,"./util":55}],30:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash");
+
+module.exports = {
+  adjust: adjust,
+  undo: undo
+};
+
+function adjust(g) {
+  var rankDir = g.graph().rankdir.toLowerCase();
+  if (rankDir === "lr" || rankDir === "rl") {
+    swapWidthHeight(g);
+  }
+}
+
+function undo(g) {
+  var rankDir = g.graph().rankdir.toLowerCase();
+  if (rankDir === "bt" || rankDir === "rl") {
+    reverseY(g);
+  }
+
+  if (rankDir === "lr" || rankDir === "rl") {
+    swapXY(g);
+    swapWidthHeight(g);
+  }
+}
+
+function swapWidthHeight(g) {
+  _.each(g.nodes(), function(v) { swapWidthHeightOne(g.node(v)); });
+  _.each(g.edges(), function(e) { swapWidthHeightOne(g.edge(e)); });
+}
+
+function swapWidthHeightOne(attrs) {
+  var w = attrs.width;
+  attrs.width = attrs.height;
+  attrs.height = w;
+}
+
+function reverseY(g) {
+  _.each(g.nodes(), function(v) { reverseYOne(g.node(v)); });
+
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    _.each(edge.points, reverseYOne);
+    if (_.has(edge, "y")) {
+      reverseYOne(edge);
+    }
+  });
+}
+
+function reverseYOne(attrs) {
+  attrs.y = -attrs.y;
+}
+
+function swapXY(g) {
+  _.each(g.nodes(), function(v) { swapXYOne(g.node(v)); });
+
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    _.each(edge.points, swapXYOne);
+    if (_.has(edge, "x")) {
+      swapXYOne(edge);
+    }
+  });
+}
+
+function swapXYOne(attrs) {
+  var x = attrs.x;
+  attrs.x = attrs.y;
+  attrs.y = x;
+}
+
+},{"./lodash":36}],31:[function(require,module,exports){
+/*
+ * Simple doubly linked list implementation derived from Cormen, et al.,
+ * "Introduction to Algorithms".
+ */
+
+module.exports = List;
+
+function List() {
+  var sentinel = {};
+  sentinel._next = sentinel._prev = sentinel;
+  this._sentinel = sentinel;
+}
+
+List.prototype.dequeue = function() {
+  var sentinel = this._sentinel,
+      entry = sentinel._prev;
+  if (entry !== sentinel) {
+    unlink(entry);
+    return entry;
+  }
+};
+
+List.prototype.enqueue = function(entry) {
+  var sentinel = this._sentinel;
+  if (entry._prev && entry._next) {
+    unlink(entry);
+  }
+  entry._next = sentinel._next;
+  sentinel._next._prev = entry;
+  sentinel._next = entry;
+  entry._prev = sentinel;
+};
+
+List.prototype.toString = function() {
+  var strs = [],
+      sentinel = this._sentinel,
+      curr = sentinel._prev;
+  while (curr !== sentinel) {
+    strs.push(JSON.stringify(curr, filterOutLinks));
+    curr = curr._prev;
+  }
+  return "[" + strs.join(", ") + "]";
+};
+
+function unlink(entry) {
+  entry._prev._next = entry._next;
+  entry._next._prev = entry._prev;
+  delete entry._next;
+  delete entry._prev;
+}
+
+function filterOutLinks(k, v) {
+  if (k !== "_next" && k !== "_prev") {
+    return v;
+  }
+}
+
+},{}],32:[function(require,module,exports){
+var _ = require("./lodash"),
+    util = require("./util"),
+    Graph = require("./graphlib").Graph;
+
+module.exports = {
+  debugOrdering: debugOrdering
+};
+
+/* istanbul ignore next */
+function debugOrdering(g) {
+  var layerMatrix = util.buildLayerMatrix(g);
+
+  var h = new Graph({ compound: true, multigraph: true }).setGraph({});
+
+  _.each(g.nodes(), function(v) {
+    h.setNode(v, { label: v });
+    h.setParent(v, "layer" + g.node(v).rank);
+  });
+
+  _.each(g.edges(), function(e) {
+    h.setEdge(e.v, e.w, {}, e.name);
+  });
+
+  _.each(layerMatrix, function(layer, i) {
+    var layerV = "layer" + i;
+    h.setNode(layerV, { rank: "same" });
+    _.reduce(layer, function(u, v) {
+      h.setEdge(u, v, { style: "invis" });
+      return v;
+    });
+  });
+
+  return h;
+}
+
+},{"./graphlib":33,"./lodash":36,"./util":55}],33:[function(require,module,exports){
+module.exports=require(9)
+},{"graphlib":57}],34:[function(require,module,exports){
+var _ = require("./lodash"),
+    Graph = require("./graphlib").Graph,
+    List = require("./data/list");
+
+/*
+ * A greedy heuristic for finding a feedback arc set for a graph. A feedback
+ * arc set is a set of edges that can be removed to make a graph acyclic.
+ * The algorithm comes from: P. Eades, X. Lin, and W. F. Smyth, "A fast and
+ * effective heuristic for the feedback arc set problem." This implementation
+ * adjusts that from the paper to allow for weighted edges.
+ */
+module.exports = greedyFAS;
+
+var DEFAULT_WEIGHT_FN = _.constant(1);
+
+function greedyFAS(g, weightFn) {
+  if (g.nodeCount() <= 1) {
+    return [];
+  }
+  var state = buildState(g, weightFn || DEFAULT_WEIGHT_FN);
+  var results = doGreedyFAS(state.graph, state.buckets, state.zeroIdx);
+
+  // Expand multi-edges
+  return _.flatten(_.map(results, function(e) {
+    return g.outEdges(e.v, e.w);
+  }), true);
+}
+
+function doGreedyFAS(g, buckets, zeroIdx) {
+  var results = [],
+      sources = buckets[buckets.length - 1],
+      sinks = buckets[0];
+
+  var entry;
+  while (g.nodeCount()) {
+    while ((entry = sinks.dequeue()))   { removeNode(g, buckets, zeroIdx, entry); }
+    while ((entry = sources.dequeue())) { removeNode(g, buckets, zeroIdx, entry); }
+    if (g.nodeCount()) {
+      for (var i = buckets.length - 2; i > 0; --i) {
+        entry = buckets[i].dequeue();
+        if (entry) {
+          results = results.concat(removeNode(g, buckets, zeroIdx, entry, true));
+          break;
+        }
+      }
+    }
+  }
+
+  return results;
+}
+
+function removeNode(g, buckets, zeroIdx, entry, collectPredecessors) {
+  var results = collectPredecessors ? [] : undefined;
+
+  _.each(g.inEdges(entry.v), function(edge) {
+    var weight = g.edge(edge),
+        uEntry = g.node(edge.v);
+
+    if (collectPredecessors) {
+      results.push({ v: edge.v, w: edge.w });
+    }
+
+    uEntry.out -= weight;
+    assignBucket(buckets, zeroIdx, uEntry);
+  });
+
+  _.each(g.outEdges(entry.v), function(edge) {
+    var weight = g.edge(edge),
+        w = edge.w,
+        wEntry = g.node(w);
+    wEntry.in -= weight;
+    assignBucket(buckets, zeroIdx, wEntry);
+  });
+
+  g.removeNode(entry.v);
+
+  return results;
+}
+
+function buildState(g, weightFn) {
+  var fasGraph = new Graph(),
+      maxIn = 0,
+      maxOut = 0;
+
+  _.each(g.nodes(), function(v) {
+    fasGraph.setNode(v, { v: v, in: 0, out: 0 });
+  });
+
+  // Aggregate weights on nodes, but also sum the weights across multi-edges
+  // into a single edge for the fasGraph.
+  _.each(g.edges(), function(e) {
+    var prevWeight = fasGraph.edge(e.v, e.w) || 0,
+        weight = weightFn(e),
+        edgeWeight = prevWeight + weight;
+    fasGraph.setEdge(e.v, e.w, edgeWeight);
+    maxOut = Math.max(maxOut, fasGraph.node(e.v).out += weight);
+    maxIn  = Math.max(maxIn,  fasGraph.node(e.w).in  += weight);
+  });
+
+  var buckets = _.range(maxOut + maxIn + 3).map(function() { return new List(); });
+  var zeroIdx = maxIn + 1;
+
+  _.each(fasGraph.nodes(), function(v) {
+    assignBucket(buckets, zeroIdx, fasGraph.node(v));
+  });
+
+  return { graph: fasGraph, buckets: buckets, zeroIdx: zeroIdx };
+}
+
+function assignBucket(buckets, zeroIdx, entry) {
+  if (!entry.out) {
+    buckets[0].enqueue(entry);
+  } else if (!entry.in) {
+    buckets[buckets.length - 1].enqueue(entry);
+  } else {
+    buckets[entry.out - entry.in + zeroIdx].enqueue(entry);
+  }
+}
+
+},{"./data/list":31,"./graphlib":33,"./lodash":36}],35:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    acyclic = require("./acyclic"),
+    normalize = require("./normalize"),
+    rank = require("./rank"),
+    normalizeRanks = require("./util").normalizeRanks,
+    parentDummyChains = require("./parent-dummy-chains"),
+    removeEmptyRanks = require("./util").removeEmptyRanks,
+    nestingGraph = require("./nesting-graph"),
+    addBorderSegments = require("./add-border-segments"),
+    coordinateSystem = require("./coordinate-system"),
+    order = require("./order"),
+    position = require("./position"),
+    util = require("./util"),
+    Graph = require("./graphlib").Graph;
+
+module.exports = layout;
+
+function layout(g, opts) {
+  var time = opts && opts.debugTiming ? util.time : util.notime;
+  time("layout", function() {
+    var layoutGraph = time("  buildLayoutGraph",
+                               function() { return buildLayoutGraph(g); });
+    time("  runLayout",        function() { runLayout(layoutGraph, time); });
+    time("  updateInputGraph", function() { updateInputGraph(g, layoutGraph); });
+  });
+}
+
+function runLayout(g, time) {
+  time("    makeSpaceForEdgeLabels", function() { makeSpaceForEdgeLabels(g); });
+  time("    removeSelfEdges",        function() { removeSelfEdges(g); });
+  time("    acyclic",                function() { acyclic.run(g); });
+  time("    nestingGraph.run",       function() { nestingGraph.run(g); });
+  time("    rank",                   function() { rank(util.asNonCompoundGraph(g)); });
+  time("    injectEdgeLabelProxies", function() { injectEdgeLabelProxies(g); });
+  time("    removeEmptyRanks",       function() { removeEmptyRanks(g); });
+  time("    nestingGraph.cleanup",   function() { nestingGraph.cleanup(g); });
+  time("    normalizeRanks",         function() { normalizeRanks(g); });
+  time("    assignRankMinMax",       function() { assignRankMinMax(g); });
+  time("    removeEdgeLabelProxies", function() { removeEdgeLabelProxies(g); });
+  time("    normalize.run",          function() { normalize.run(g); });
+  time("    parentDummyChains",      function() { parentDummyChains(g); });
+  time("    addBorderSegments",      function() { addBorderSegments(g); });
+  time("    order",                  function() { order(g); });
+  time("    insertSelfEdges",        function() { insertSelfEdges(g); });
+  time("    adjustCoordinateSystem", function() { coordinateSystem.adjust(g); });
+  time("    position",               function() { position(g); });
+  time("    positionSelfEdges",      function() { positionSelfEdges(g); });
+  time("    removeBorderNodes",      function() { removeBorderNodes(g); });
+  time("    normalize.undo",         function() { normalize.undo(g); });
+  time("    fixupEdgeLabelCoords",   function() { fixupEdgeLabelCoords(g); });
+  time("    undoCoordinateSystem",   function() { coordinateSystem.undo(g); });
+  time("    translateGraph",         function() { translateGraph(g); });
+  time("    assignNodeIntersects",   function() { assignNodeIntersects(g); });
+  time("    reversePoints",          function() { reversePointsForReversedEdges(g); });
+  time("    acyclic.undo",           function() { acyclic.undo(g); });
+}
+
+/*
+ * Copies final layout information from the layout graph back to the input
+ * graph. This process only copies whitelisted attributes from the layout graph
+ * to the input graph, so it serves as a good place to determine what
+ * attributes can influence layout.
+ */
+function updateInputGraph(inputGraph, layoutGraph) {
+  _.each(inputGraph.nodes(), function(v) {
+    var inputLabel = inputGraph.node(v),
+        layoutLabel = layoutGraph.node(v);
+
+    if (inputLabel) {
+      inputLabel.x = layoutLabel.x;
+      inputLabel.y = layoutLabel.y;
+
+      if (layoutGraph.children(v).length) {
+        inputLabel.width = layoutLabel.width;
+        inputLabel.height = layoutLabel.height;
+      }
+    }
+  });
+
+  _.each(inputGraph.edges(), function(e) {
+    var inputLabel = inputGraph.edge(e),
+        layoutLabel = layoutGraph.edge(e);
+
+    inputLabel.points = layoutLabel.points;
+    if (_.has(layoutLabel, "x")) {
+      inputLabel.x = layoutLabel.x;
+      inputLabel.y = layoutLabel.y;
+    }
+  });
+
+  inputGraph.graph().width = layoutGraph.graph().width;
+  inputGraph.graph().height = layoutGraph.graph().height;
+}
+
+var graphNumAttrs = ["nodesep", "edgesep", "ranksep", "marginx", "marginy"],
+    graphDefaults = { ranksep: 50, edgesep: 20, nodesep: 50, rankdir: "tb" },
+    graphAttrs = ["acyclicer", "ranker", "rankdir", "align"],
+    nodeNumAttrs = ["width", "height"],
+    nodeDefaults = { width: 0, height: 0 },
+    edgeNumAttrs = ["minlen", "weight", "width", "height", "labeloffset"],
+    edgeDefaults = {
+      minlen: 1, weight: 1, width: 0, height: 0,
+      labeloffset: 10, labelpos: "r"
+    },
+    edgeAttrs = ["labelpos"];
+
+/*
+ * Constructs a new graph from the input graph, which can be used for layout.
+ * This process copies only whitelisted attributes from the input graph to the
+ * layout graph. Thus this function serves as a good place to determine what
+ * attributes can influence layout.
+ */
+function buildLayoutGraph(inputGraph) {
+  var g = new Graph({ multigraph: true, compound: true }),
+      graph = canonicalize(inputGraph.graph());
+
+  g.setGraph(_.merge({},
+    graphDefaults,
+    selectNumberAttrs(graph, graphNumAttrs),
+    _.pick(graph, graphAttrs)));
+
+  _.each(inputGraph.nodes(), function(v) {
+    var node = canonicalize(inputGraph.node(v));
+    g.setNode(v, _.defaults(selectNumberAttrs(node, nodeNumAttrs), nodeDefaults));
+    g.setParent(v, inputGraph.parent(v));
+  });
+
+  _.each(inputGraph.edges(), function(e) {
+    var edge = canonicalize(inputGraph.edge(e));
+    g.setEdge(e, _.merge({},
+      edgeDefaults,
+      selectNumberAttrs(edge, edgeNumAttrs),
+      _.pick(edge, edgeAttrs)));
+  });
+
+  return g;
+}
+
+/*
+ * This idea comes from the Gansner paper: to account for edge labels in our
+ * layout we split each rank in half by doubling minlen and halving ranksep.
+ * Then we can place labels at these mid-points between nodes.
+ *
+ * We also add some minimal padding to the width to push the label for the edge
+ * away from the edge itself a bit.
+ */
+function makeSpaceForEdgeLabels(g) {
+  var graph = g.graph();
+  graph.ranksep /= 2;
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    edge.minlen *= 2;
+    if (edge.labelpos.toLowerCase() !== "c") {
+      if (graph.rankdir === "TB" || graph.rankdir === "BT") {
+        edge.width += edge.labeloffset;
+      } else {
+        edge.height += edge.labeloffset;
+      }
+    }
+  });
+}
+
+/*
+ * Creates temporary dummy nodes that capture the rank in which each edge's
+ * label is going to, if it has one of non-zero width and height. We do this
+ * so that we can safely remove empty ranks while preserving balance for the
+ * label's position.
+ */
+function injectEdgeLabelProxies(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (edge.width && edge.height) {
+      var v = g.node(e.v),
+          w = g.node(e.w),
+          label = { rank: (w.rank - v.rank) / 2 + v.rank, e: e };
+      util.addDummyNode(g, "edge-proxy", label, "_ep");
+    }
+  });
+}
+
+function assignRankMinMax(g) {
+  var maxRank = 0;
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (node.borderTop) {
+      node.minRank = g.node(node.borderTop).rank;
+      node.maxRank = g.node(node.borderBottom).rank;
+      maxRank = _.max(maxRank, node.maxRank);
+    }
+  });
+  g.graph().maxRank = maxRank;
+}
+
+function removeEdgeLabelProxies(g) {
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (node.dummy === "edge-proxy") {
+      g.edge(node.e).labelRank = node.rank;
+      g.removeNode(v);
+    }
+  });
+}
+
+function translateGraph(g) {
+  var minX = Number.POSITIVE_INFINITY,
+      maxX = 0,
+      minY = Number.POSITIVE_INFINITY,
+      maxY = 0,
+      graphLabel = g.graph(),
+      marginX = graphLabel.marginx || 0,
+      marginY = graphLabel.marginy || 0;
+
+  function getExtremes(attrs) {
+    var x = attrs.x,
+        y = attrs.y,
+        w = attrs.width,
+        h = attrs.height;
+    minX = Math.min(minX, x - w / 2);
+    maxX = Math.max(maxX, x + w / 2);
+    minY = Math.min(minY, y - h / 2);
+    maxY = Math.max(maxY, y + h / 2);
+  }
+
+  _.each(g.nodes(), function(v) { getExtremes(g.node(v)); });
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (_.has(edge, "x")) {
+      getExtremes(edge);
+    }
+  });
+
+  minX -= marginX;
+  minY -= marginY;
+
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    node.x -= minX;
+    node.y -= minY;
+  });
+
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    _.each(edge.points, function(p) {
+      p.x -= minX;
+      p.y -= minY;
+    });
+    if (_.has(edge, "x")) { edge.x -= minX; }
+    if (_.has(edge, "y")) { edge.y -= minY; }
+  });
+
+  graphLabel.width = maxX - minX + marginX;
+  graphLabel.height = maxY - minY + marginY;
+}
+
+function assignNodeIntersects(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e),
+        nodeV = g.node(e.v),
+        nodeW = g.node(e.w),
+        p1, p2;
+    if (!edge.points) {
+      edge.points = [];
+      p1 = nodeW;
+      p2 = nodeV;
+    } else {
+      p1 = edge.points[0];
+      p2 = edge.points[edge.points.length - 1];
+    }
+    edge.points.unshift(util.intersectRect(nodeV, p1));
+    edge.points.push(util.intersectRect(nodeW, p2));
+  });
+}
+
+function fixupEdgeLabelCoords(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (_.has(edge, "x")) {
+      if (edge.labelpos === "l" || edge.labelpos === "r") {
+        edge.width -= edge.labeloffset;
+      }
+      switch (edge.labelpos) {
+        case "l": edge.x -= edge.width / 2 + edge.labeloffset; break;
+        case "r": edge.x += edge.width / 2 + edge.labeloffset; break;
+      }
+    }
+  });
+}
+
+function reversePointsForReversedEdges(g) {
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (edge.reversed) {
+      edge.points.reverse();
+    }
+  });
+}
+
+function removeBorderNodes(g) {
+  _.each(g.nodes(), function(v) {
+    if (g.children(v).length) {
+      var node = g.node(v),
+          t = g.node(node.borderTop),
+          b = g.node(node.borderBottom),
+          l = g.node(_.last(node.borderLeft)),
+          r = g.node(_.last(node.borderRight));
+
+      node.width = Math.abs(r.x - l.x);
+      node.height = Math.abs(b.y - t.y);
+      node.x = l.x + node.width / 2;
+      node.y = t.y + node.height / 2;
+    }
+  });
+
+  _.each(g.nodes(), function(v) {
+    if (g.node(v).dummy === "border") {
+      g.removeNode(v);
+    }
+  });
+}
+
+function removeSelfEdges(g) {
+  _.each(g.edges(), function(e) {
+    if (e.v === e.w) {
+      var node = g.node(e.v);
+      if (!node.selfEdges) {
+        node.selfEdges = [];
+      }
+      node.selfEdges.push({ e: e, label: g.edge(e) });
+      g.removeEdge(e);
+    }
+  });
+}
+
+function insertSelfEdges(g) {
+  var layers = util.buildLayerMatrix(g);
+  _.each(layers, function(layer) {
+    var orderShift = 0;
+    _.each(layer, function(v, i) {
+      var node = g.node(v);
+      node.order = i + orderShift;
+      _.each(node.selfEdges, function(selfEdge) {
+        util.addDummyNode(g, "selfedge", {
+          width: selfEdge.label.width,
+          height: selfEdge.label.height,
+          rank: node.rank,
+          order: i + (++orderShift),
+          e: selfEdge.e,
+          label: selfEdge.label
+        }, "_se");
+      });
+      delete node.selfEdges;
+    });
+  });
+}
+
+function positionSelfEdges(g) {
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (node.dummy === "selfedge") {
+      var selfNode = g.node(node.e.v),
+          x = selfNode.x + selfNode.width / 2,
+          y = selfNode.y,
+          dx = node.x - x,
+          dy = selfNode.height / 2;
+      g.setEdge(node.e, node.label);
+      g.removeNode(v);
+      node.label.points = [
+        { x: x + 2 * dx / 3, y: y - dy },
+        { x: x + 5 * dx / 6, y: y - dy },
+        { x: x +     dx    , y: y },
+        { x: x + 5 * dx / 6, y: y + dy },
+        { x: x + 2 * dx / 3, y: y + dy },
+      ];
+      node.label.x = node.x;
+      node.label.y = node.y;
+    }
+  });
+}
+
+function selectNumberAttrs(obj, attrs) {
+  return _.mapValues(_.pick(obj, attrs), Number);
+}
+
+function canonicalize(attrs) {
+  var newAttrs = {};
+  _.each(attrs, function(v, k) {
+    newAttrs[k.toLowerCase()] = v;
+  });
+  return newAttrs;
+}
+
+},{"./acyclic":28,"./add-border-segments":29,"./coordinate-system":30,"./graphlib":33,"./lodash":36,"./nesting-graph":37,"./normalize":38,"./order":43,"./parent-dummy-chains":48,"./position":50,"./rank":52,"./util":55}],36:[function(require,module,exports){
+module.exports=require(20)
+},{"lodash":101}],37:[function(require,module,exports){
+var _ = require("./lodash"),
+    util = require("./util");
+
+module.exports = {
+  run: run,
+  cleanup: cleanup
+};
+
+/*
+ * A nesting graph creates dummy nodes for the tops and bottoms of subgraphs,
+ * adds appropriate edges to ensure that all cluster nodes are placed between
+ * these boundries, and ensures that the graph is connected.
+ *
+ * In addition we ensure, through the use of the minlen property, that nodes
+ * and subgraph border nodes to not end up on the same rank.
+ *
+ * Preconditions:
+ *
+ *    1. Input graph is a DAG
+ *    2. Nodes in the input graph has a minlen attribute
+ *
+ * Postconditions:
+ *
+ *    1. Input graph is connected.
+ *    2. Dummy nodes are added for the tops and bottoms of subgraphs.
+ *    3. The minlen attribute for nodes is adjusted to ensure nodes do not
+ *       get placed on the same rank as subgraph border nodes.
+ *
+ * The nesting graph idea comes from Sander, "Layout of Compound Directed
+ * Graphs."
+ */
+function run(g) {
+  var root = util.addDummyNode(g, "root", {}, "_root"),
+      depths = treeDepths(g),
+      height = _.max(depths) - 1,
+      nodeSep = 2 * height + 1;
+
+  g.graph().nestingRoot = root;
+
+  // Multiply minlen by nodeSep to align nodes on non-border ranks.
+  _.each(g.edges(), function(e) { g.edge(e).minlen *= nodeSep; });
+
+  // Calculate a weight that is sufficient to keep subgraphs vertically compact
+  var weight = sumWeights(g) + 1;
+
+  // Create border nodes and link them up
+  _.each(g.children(), function(child) {
+    dfs(g, root, nodeSep, weight, height, depths, child);
+  });
+
+  // Save the multiplier for node layers for later removal of empty border
+  // layers.
+  g.graph().nodeRankFactor = nodeSep;
+}
+
+function dfs(g, root, nodeSep, weight, height, depths, v) {
+  var children = g.children(v);
+  if (!children.length) {
+    if (v !== root) {
+      g.setEdge(root, v, { weight: 0, minlen: nodeSep });
+    }
+    return;
+  }
+
+  var top = util.addBorderNode(g, "_bt"),
+      bottom = util.addBorderNode(g, "_bb"),
+      label = g.node(v);
+
+  g.setParent(top, v);
+  label.borderTop = top;
+  g.setParent(bottom, v);
+  label.borderBottom = bottom;
+
+  _.each(children, function(child) {
+    dfs(g, root, nodeSep, weight, height, depths, child);
+
+    var childNode = g.node(child),
+        childTop = childNode.borderTop ? childNode.borderTop : child,
+        childBottom = childNode.borderBottom ? childNode.borderBottom : child,
+        thisWeight = childNode.borderTop ? weight : 2 * weight,
+        minlen = childTop !== childBottom ? 1 : height - depths[v] + 1;
+
+    g.setEdge(top, childTop, {
+      weight: thisWeight,
+      minlen: minlen,
+      nestingEdge: true
+    });
+
+    g.setEdge(childBottom, bottom, {
+      weight: thisWeight,
+      minlen: minlen,
+      nestingEdge: true
+    });
+  });
+
+  if (!g.parent(v)) {
+    g.setEdge(root, top, { weight: 0, minlen: height + depths[v] });
+  }
+}
+
+function treeDepths(g) {
+  var depths = {};
+  function dfs(v, depth) {
+    var children = g.children(v);
+    if (children && children.length) {
+      _.each(children, function(child) {
+        dfs(child, depth + 1);
+      });
+    }
+    depths[v] = depth;
+  }
+  _.each(g.children(), function(v) { dfs(v, 1); });
+  return depths;
+}
+
+function sumWeights(g) {
+  return _.reduce(g.edges(), function(acc, e) {
+    return acc + g.edge(e).weight;
+  }, 0);
+}
+
+function cleanup(g) {
+  var graphLabel = g.graph();
+  g.removeNode(graphLabel.nestingRoot);
+  delete graphLabel.nestingRoot;
+  _.each(g.edges(), function(e) {
+    var edge = g.edge(e);
+    if (edge.nestingEdge) {
+      g.removeEdge(e);
+    }
+  });
+}
+
+},{"./lodash":36,"./util":55}],38:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    util = require("./util");
+
+module.exports = {
+  run: run,
+  undo: undo
+};
+
+/*
+ * Breaks any long edges in the graph into short segments that span 1 layer
+ * each. This operation is undoable with the denormalize function.
+ *
+ * Pre-conditions:
+ *
+ *    1. The input graph is a DAG.
+ *    2. Each node in the graph has a "rank" property.
+ *
+ * Post-condition:
+ *
+ *    1. All edges in the graph have a length of 1.
+ *    2. Dummy nodes are added where edges have been split into segments.
+ *    3. The graph is augmented with a "dummyChains" attribute which contains
+ *       the first dummy in each chain of dummy nodes produced.
+ */
+function run(g) {
+  g.graph().dummyChains = [];
+  _.each(g.edges(), function(edge) { normalizeEdge(g, edge); });
+}
+
+function normalizeEdge(g, e) {
+  var v = e.v,
+      vRank = g.node(v).rank,
+      w = e.w,
+      wRank = g.node(w).rank,
+      name = e.name,
+      edgeLabel = g.edge(e),
+      labelRank = edgeLabel.labelRank;
+
+  if (wRank === vRank + 1) return;
+
+  g.removeEdge(e);
+
+  var dummy, attrs, i;
+  for (i = 0, ++vRank; vRank < wRank; ++i, ++vRank) {
+    edgeLabel.points = [];
+    attrs = {
+      width: 0, height: 0,
+      edgeLabel: edgeLabel, edgeObj: e,
+      rank: vRank
+    };
+    dummy = util.addDummyNode(g, "edge", attrs, "_d");
+    if (vRank === labelRank) {
+      attrs.width = edgeLabel.width;
+      attrs.height = edgeLabel.height;
+      attrs.dummy = "edge-label";
+      attrs.labelpos = edgeLabel.labelpos;
+    }
+    g.setEdge(v, dummy, { weight: edgeLabel.weight }, name);
+    if (i === 0) {
+      g.graph().dummyChains.push(dummy);
+    }
+    v = dummy;
+  }
+
+  g.setEdge(v, w, { weight: edgeLabel.weight }, name);
+}
+
+function undo(g) {
+  _.each(g.graph().dummyChains, function(v) {
+    var node = g.node(v),
+        origLabel = node.edgeLabel,
+        w;
+    g.setEdge(node.edgeObj, origLabel);
+    while (node.dummy) {
+      w = g.successors(v)[0];
+      g.removeNode(v);
+      origLabel.points.push({ x: node.x, y: node.y });
+      if (node.dummy === "edge-label") {
+        origLabel.x = node.x;
+        origLabel.y = node.y;
+        origLabel.width = node.width;
+        origLabel.height = node.height;
+      }
+      v = w;
+      node = g.node(v);
+    }
+  });
+}
+
+},{"./lodash":36,"./util":55}],39:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = addSubgraphConstraints;
+
+function addSubgraphConstraints(g, cg, vs) {
+  var prev = {},
+      rootPrev;
+
+  _.each(vs, function(v) {
+    var child = g.parent(v),
+        parent,
+        prevChild;
+    while (child) {
+      parent = g.parent(child);
+      if (parent) {
+        prevChild = prev[parent];
+        prev[parent] = child;
+      } else {
+        prevChild = rootPrev;
+        rootPrev = child;
+      }
+      if (prevChild && prevChild !== child) {
+        cg.setEdge(prevChild, child);
+        return;
+      }
+      child = parent;
+    }
+  });
+
+  /*
+  function dfs(v) {
+    var children = v ? g.children(v) : g.children();
+    if (children.length) {
+      var min = Number.POSITIVE_INFINITY,
+          subgraphs = [];
+      _.each(children, function(child) {
+        var childMin = dfs(child);
+        if (g.children(child).length) {
+          subgraphs.push({ v: child, order: childMin });
+        }
+        min = Math.min(min, childMin);
+      });
+      _.reduce(_.sortBy(subgraphs, "order"), function(prev, curr) {
+        cg.setEdge(prev.v, curr.v);
+        return curr;
+      });
+      return min;
+    }
+    return g.node(v).order;
+  }
+  dfs(undefined);
+  */
+}
+
+},{"../lodash":36}],40:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = barycenter;
+
+function barycenter(g, movable) {
+  return _.map(movable, function(v) {
+    var inV = g.inEdges(v);
+    if (!inV.length) {
+      return { v: v };
+    } else {
+      var result = _.reduce(inV, function(acc, e) {
+        var edge = g.edge(e),
+            nodeU = g.node(e.v);
+        return {
+          sum: acc.sum + (edge.weight * nodeU.order),
+          weight: acc.weight + edge.weight
+        };
+      }, { sum: 0, weight: 0 });
+
+      return {
+        v: v,
+        barycenter: result.sum / result.weight,
+        weight: result.weight
+      };
+    }
+  });
+}
+
+
+},{"../lodash":36}],41:[function(require,module,exports){
+var _ = require("../lodash"),
+    Graph = require("../graphlib").Graph;
+
+module.exports = buildLayerGraph;
+
+/*
+ * Constructs a graph that can be used to sort a layer of nodes. The graph will
+ * contain all base and subgraph nodes from the request layer in their original
+ * hierarchy and any edges that are incident on these nodes and are of the type
+ * requested by the "relationship" parameter.
+ *
+ * Nodes from the requested rank that do not have parents are assigned a root
+ * node in the output graph, which is set in the root graph attribute. This
+ * makes it easy to walk the hierarchy of movable nodes during ordering.
+ *
+ * Pre-conditions:
+ *
+ *    1. Input graph is a DAG
+ *    2. Base nodes in the input graph have a rank attribute
+ *    3. Subgraph nodes in the input graph has minRank and maxRank attributes
+ *    4. Edges have an assigned weight
+ *
+ * Post-conditions:
+ *
+ *    1. Output graph has all nodes in the movable rank with preserved
+ *       hierarchy.
+ *    2. Root nodes in the movable layer are made children of the node
+ *       indicated by the root attribute of the graph.
+ *    3. Non-movable nodes incident on movable nodes, selected by the
+ *       relationship parameter, are included in the graph (without hierarchy).
+ *    4. Edges incident on movable nodes, selected by the relationship
+ *       parameter, are added to the output graph.
+ *    5. The weights for copied edges are aggregated as need, since the output
+ *       graph is not a multi-graph.
+ */
+function buildLayerGraph(g, rank, relationship) {
+  var root = createRootNode(g),
+      result = new Graph({ compound: true }).setGraph({ root: root })
+                  .setDefaultNodeLabel(function(v) { return g.node(v); });
+
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v),
+        parent = g.parent(v);
+
+    if (node.rank === rank || node.minRank <= rank && rank <= node.maxRank) {
+      result.setNode(v);
+      result.setParent(v, parent || root);
+
+      // This assumes we have only short edges!
+      _.each(g[relationship](v), function(e) {
+        var u = e.v === v ? e.w : e.v,
+            edge = result.edge(u, v),
+            weight = !_.isUndefined(edge) ? edge.weight : 0;
+        result.setEdge(u, v, { weight: g.edge(e).weight + weight });
+      });
+
+      if (_.has(node, "minRank")) {
+        result.setNode(v, {
+          borderLeft: node.borderLeft[rank],
+          borderRight: node.borderRight[rank]
+        });
+      }
+    }
+  });
+
+  return result;
+}
+
+function createRootNode(g) {
+  var v;
+  while (g.hasNode((v = _.uniqueId("_root"))));
+  return v;
+}
+
+},{"../graphlib":33,"../lodash":36}],42:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = crossCount;
+
+/*
+ * A function that takes a layering (an array of layers, each with an array of
+ * ordererd nodes) and a graph and returns a weighted crossing count.
+ *
+ * Pre-conditions:
+ *
+ *    1. Input graph must be simple (not a multigraph), directed, and include
+ *       only simple edges.
+ *    2. Edges in the input graph must have assigned weights.
+ *
+ * Post-conditions:
+ *
+ *    1. The graph and layering matrix are left unchanged.
+ *
+ * This algorithm is derived from Barth, et al., "Bilayer Cross Counting."
+ */
+function crossCount(g, layering) {
+  var cc = 0;
+  for (var i = 1; i < layering.length; ++i) {
+    cc += twoLayerCrossCount(g, layering[i-1], layering[i]);
+  }
+  return cc;
+}
+
+function twoLayerCrossCount(g, northLayer, southLayer) {
+  // Sort all of the edges between the north and south layers by their position
+  // in the north layer and then the south. Map these edges to the position of
+  // their head in the south layer.
+  var southPos = _.zipObject(southLayer,
+                             _.map(southLayer, function (v, i) { return i; }));
+  var southEntries = _.flatten(_.map(northLayer, function(v) {
+    return _.chain(g.outEdges(v))
+            .map(function(e) {
+              return { pos: southPos[e.w], weight: g.edge(e).weight };
+            })
+            .sortBy("pos")
+            .value();
+  }), true);
+
+  // Build the accumulator tree
+  var firstIndex = 1;
+  while (firstIndex < southLayer.length) firstIndex <<= 1;
+  var treeSize = 2 * firstIndex - 1;
+  firstIndex -= 1;
+  var tree = _.map(new Array(treeSize), function() { return 0; });
+
+  // Calculate the weighted crossings
+  var cc = 0;
+  _.each(southEntries.forEach(function(entry) {
+    var index = entry.pos + firstIndex;
+    tree[index] += entry.weight;
+    var weightSum = 0;
+    while (index > 0) {
+      if (index % 2) {
+        weightSum += tree[index + 1];
+      }
+      index = (index - 1) >> 1;
+      tree[index] += entry.weight;
+    }
+    cc += entry.weight * weightSum;
+  }));
+
+  return cc;
+}
+
+},{"../lodash":36}],43:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    initOrder = require("./init-order"),
+    crossCount = require("./cross-count"),
+    sortSubgraph = require("./sort-subgraph"),
+    buildLayerGraph = require("./build-layer-graph"),
+    addSubgraphConstraints = require("./add-subgraph-constraints"),
+    Graph = require("../graphlib").Graph,
+    util = require("../util");
+
+module.exports = order;
+
+/*
+ * Applies heuristics to minimize edge crossings in the graph and sets the best
+ * order solution as an order attribute on each node.
+ *
+ * Pre-conditions:
+ *
+ *    1. Graph must be DAG
+ *    2. Graph nodes must be objects with a "rank" attribute
+ *    3. Graph edges must have the "weight" attribute
+ *
+ * Post-conditions:
+ *
+ *    1. Graph nodes will have an "order" attribute based on the results of the
+ *       algorithm.
+ */
+function order(g) {
+  var maxRank = util.maxRank(g),
+      downLayerGraphs = buildLayerGraphs(g, _.range(1, maxRank + 1), "inEdges"),
+      upLayerGraphs = buildLayerGraphs(g, _.range(maxRank - 1, -1, -1), "outEdges");
+
+  var layering = initOrder(g);
+  assignOrder(g, layering);
+
+  var bestCC = Number.POSITIVE_INFINITY,
+      best;
+
+  for (var i = 0, lastBest = 0; lastBest < 4; ++i, ++lastBest) {
+    sweepLayerGraphs(i % 2 ? downLayerGraphs : upLayerGraphs, i % 4 >= 2);
+
+    layering = util.buildLayerMatrix(g);
+    var cc = crossCount(g, layering);
+    if (cc < bestCC) {
+      lastBest = 0;
+      best = _.cloneDeep(layering);
+      bestCC = cc;
+    }
+  }
+
+  assignOrder(g, best);
+}
+
+function buildLayerGraphs(g, ranks, relationship) {
+  return _.map(ranks, function(rank) {
+    return buildLayerGraph(g, rank, relationship);
+  });
+}
+
+function sweepLayerGraphs(layerGraphs, biasRight) {
+  var cg = new Graph();
+  _.each(layerGraphs, function(lg) {
+    var root = lg.graph().root;
+    var sorted = sortSubgraph(lg, root, cg, biasRight);
+    _.each(sorted.vs, function(v, i) {
+      lg.node(v).order = i;
+    });
+    addSubgraphConstraints(lg, cg, sorted.vs);
+  });
+}
+
+function assignOrder(g, layering) {
+  _.each(layering, function(layer) {
+    _.each(layer, function(v, i) {
+      g.node(v).order = i;
+    });
+  });
+}
+
+},{"../graphlib":33,"../lodash":36,"../util":55,"./add-subgraph-constraints":39,"./build-layer-graph":41,"./cross-count":42,"./init-order":44,"./sort-subgraph":46}],44:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = initOrder;
+
+/*
+ * Assigns an initial order value for each node by performing a DFS search
+ * starting from nodes in the first rank. Nodes are assigned an order in their
+ * rank as they are first visited.
+ *
+ * This approach comes from Gansner, et al., "A Technique for Drawing Directed
+ * Graphs."
+ *
+ * Returns a layering matrix with an array per layer and each layer sorted by
+ * the order of its nodes.
+ */
+function initOrder(g) {
+  var visited = {},
+      simpleNodes = _.filter(g.nodes(), function(v) {
+        return !g.children(v).length;
+      }),
+      maxRank = _.max(_.map(simpleNodes, function(v) { return g.node(v).rank; })),
+      layers = _.map(_.range(maxRank + 1), function() { return []; });
+
+  function dfs(v) {
+    if (_.has(visited, v)) return;
+    visited[v] = true;
+    var node = g.node(v);
+    layers[node.rank].push(v);
+    _.each(g.successors(v), dfs);
+  }
+
+  var orderedVs = _.sortBy(simpleNodes, function(v) { return g.node(v).rank; });
+  _.each(orderedVs, dfs);
+
+  return layers;
+}
+
+},{"../lodash":36}],45:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = resolveConflicts;
+
+/*
+ * Given a list of entries of the form {v, barycenter, weight} and a
+ * constraint graph this function will resolve any conflicts between the
+ * constraint graph and the barycenters for the entries. If the barycenters for
+ * an entry would violate a constraint in the constraint graph then we coalesce
+ * the nodes in the conflict into a new node that respects the contraint and
+ * aggregates barycenter and weight information.
+ *
+ * This implementation is based on the description in Forster, "A Fast and
+ * Simple Hueristic for Constrained Two-Level Crossing Reduction," thought it
+ * differs in some specific details.
+ *
+ * Pre-conditions:
+ *
+ *    1. Each entry has the form {v, barycenter, weight}, or if the node has
+ *       no barycenter, then {v}.
+ *
+ * Returns:
+ *
+ *    A new list of entries of the form {vs, i, barycenter, weight}. The list
+ *    `vs` may either be a singleton or it may be an aggregation of nodes
+ *    ordered such that they do not violate constraints from the constraint
+ *    graph. The property `i` is the lowest original index of any of the
+ *    elements in `vs`.
+ */
+function resolveConflicts(entries, cg) {
+  var mappedEntries = {};
+  _.each(entries, function(entry, i) {
+    var tmp = mappedEntries[entry.v] = {
+      indegree: 0,
+      in: [],
+      out: [],
+      vs: [entry.v],
+      i: i
+    };
+    if (!_.isUndefined(entry.barycenter)) {
+      tmp.barycenter = entry.barycenter;
+      tmp.weight = entry.weight;
+    }
+  });
+
+  _.each(cg.edges(), function(e) {
+    var entryV = mappedEntries[e.v],
+        entryW = mappedEntries[e.w];
+    if (!_.isUndefined(entryV) && !_.isUndefined(entryW)) {
+      entryW.indegree++;
+      entryV.out.push(mappedEntries[e.w]);
+    }
+  });
+
+  var sourceSet = _.filter(mappedEntries, function(entry) {
+    return !entry.indegree;
+  });
+
+  return doResolveConflicts(sourceSet);
+}
+
+function doResolveConflicts(sourceSet) {
+  var entries = [];
+
+  function handleIn(vEntry) {
+    return function(uEntry) {
+      if (uEntry.merged) {
+        return;
+      }
+      if (_.isUndefined(uEntry.barycenter) ||
+          _.isUndefined(vEntry.barycenter) ||
+          uEntry.barycenter >= vEntry.barycenter) {
+        mergeEntries(vEntry, uEntry);
+      }
+    };
+  }
+
+  function handleOut(vEntry) {
+    return function(wEntry) {
+      wEntry.in.push(vEntry);
+      if (--wEntry.indegree === 0) {
+        sourceSet.push(wEntry);
+      }
+    };
+  }
+
+  while (sourceSet.length) {
+    var entry = sourceSet.pop();
+    entries.push(entry);
+    _.each(entry.in.reverse(), handleIn(entry));
+    _.each(entry.out, handleOut(entry));
+  }
+
+  return _.chain(entries)
+          .filter(function(entry) { return !entry.merged; })
+          .map(function(entry) {
+            return _.pick(entry, ["vs", "i", "barycenter", "weight"]);
+          })
+          .value();
+}
+
+function mergeEntries(target, source) {
+  var sum = 0,
+      weight = 0;
+
+  if (target.weight) {
+    sum += target.barycenter * target.weight;
+    weight += target.weight;
+  }
+
+  if (source.weight) {
+    sum += source.barycenter * source.weight;
+    weight += source.weight;
+  }
+
+  target.vs = source.vs.concat(target.vs);
+  target.barycenter = sum / weight;
+  target.weight = weight;
+  target.i = Math.min(source.i, target.i);
+  source.merged = true;
+}
+
+},{"../lodash":36}],46:[function(require,module,exports){
+var _ = require("../lodash"),
+    barycenter = require("./barycenter"),
+    resolveConflicts = require("./resolve-conflicts"),
+    sort = require("./sort");
+
+module.exports = sortSubgraph;
+
+function sortSubgraph(g, v, cg, biasRight) {
+  var movable = g.children(v),
+      node = g.node(v),
+      bl = node ? node.borderLeft : undefined,
+      br = node ? node.borderRight: undefined,
+      subgraphs = {};
+
+  if (bl) {
+    movable = _.filter(movable, function(w) {
+      return w !== bl && w !== br;
+    });
+  }
+
+  var barycenters = barycenter(g, movable);
+  _.each(barycenters, function(entry) {
+    if (g.children(entry.v).length) {
+      var subgraphResult = sortSubgraph(g, entry.v, cg, biasRight);
+      subgraphs[entry.v] = subgraphResult;
+      if (_.has(subgraphResult, "barycenter")) {
+        mergeBarycenters(entry, subgraphResult);
+      }
+    }
+  });
+
+  var entries = resolveConflicts(barycenters, cg);
+  expandSubgraphs(entries, subgraphs);
+
+  var result = sort(entries, biasRight);
+
+  if (bl) {
+    result.vs = _.flatten([bl, result.vs, br], true);
+    if (g.predecessors(bl).length) {
+      var blPred = g.node(g.predecessors(bl)[0]),
+          brPred = g.node(g.predecessors(br)[0]);
+      if (!_.has(result, "barycenter")) {
+        result.barycenter = 0;
+        result.weight = 0;
+      }
+      result.barycenter = (result.barycenter * result.weight +
+                           blPred.order + brPred.order) / (result.weight + 2);
+      result.weight += 2;
+    }
+  }
+
+  return result;
+}
+
+function expandSubgraphs(entries, subgraphs) {
+  _.each(entries, function(entry) {
+    entry.vs = _.flatten(entry.vs.map(function(v) {
+      if (subgraphs[v]) {
+        return subgraphs[v].vs;
+      }
+      return v;
+    }), true);
+  });
+}
+
+function mergeBarycenters(target, other) {
+  if (!_.isUndefined(target.barycenter)) {
+    target.barycenter = (target.barycenter * target.weight +
+                         other.barycenter * other.weight) /
+                        (target.weight + other.weight);
+    target.weight += other.weight;
+  } else {
+    target.barycenter = other.barycenter;
+    target.weight = other.weight;
+  }
+}
+
+},{"../lodash":36,"./barycenter":40,"./resolve-conflicts":45,"./sort":47}],47:[function(require,module,exports){
+var _ = require("../lodash"),
+    util = require("../util");
+
+module.exports = sort;
+
+function sort(entries, biasRight) {
+  var parts = util.partition(entries, function(entry) {
+    return _.has(entry, "barycenter");
+  });
+  var sortable = parts.lhs,
+      unsortable = _.sortBy(parts.rhs, function(entry) { return -entry.i; }),
+      vs = [],
+      sum = 0,
+      weight = 0,
+      vsIndex = 0;
+
+  sortable.sort(compareWithBias(!!biasRight));
+
+  vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
+
+  _.each(sortable, function (entry) {
+    vsIndex += entry.vs.length;
+    vs.push(entry.vs);
+    sum += entry.barycenter * entry.weight;
+    weight += entry.weight;
+    vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
+  });
+
+  var result = { vs: _.flatten(vs, true) };
+  if (weight) {
+    result.barycenter = sum / weight;
+    result.weight = weight;
+  }
+  return result;
+}
+
+function consumeUnsortable(vs, unsortable, index) {
+  var last;
+  while (unsortable.length && (last = _.last(unsortable)).i <= index) {
+    unsortable.pop();
+    vs.push(last.vs);
+    index++;
+  }
+  return index;
+}
+
+function compareWithBias(bias) {
+  return function(entryV, entryW) {
+    if (entryV.barycenter < entryW.barycenter) {
+      return -1;
+    } else if (entryV.barycenter > entryW.barycenter) {
+      return 1;
+    }
+
+    return !bias ? entryV.i - entryW.i : entryW.i - entryV.i;
+  };
+}
+
+},{"../lodash":36,"../util":55}],48:[function(require,module,exports){
+var _ = require("./lodash");
+
+module.exports = parentDummyChains;
+
+function parentDummyChains(g) {
+  var postorderNums = postorder(g);
+
+  _.each(g.graph().dummyChains, function(v) {
+    var node = g.node(v),
+        edgeObj = node.edgeObj,
+        pathData = findPath(g, postorderNums, edgeObj.v, edgeObj.w),
+        path = pathData.path,
+        lca = pathData.lca,
+        pathIdx = 0,
+        pathV = path[pathIdx],
+        ascending = true;
+
+    while (v !== edgeObj.w) {
+      node = g.node(v);
+
+      if (ascending) {
+        while ((pathV = path[pathIdx]) !== lca &&
+               g.node(pathV).maxRank < node.rank) {
+          pathIdx++;
+        }
+
+        if (pathV === lca) {
+          ascending = false;
+        }
+      }
+
+      if (!ascending) {
+        while (pathIdx < path.length - 1 &&
+               g.node(pathV = path[pathIdx + 1]).minRank <= node.rank) {
+          pathIdx++;
+        }
+        pathV = path[pathIdx];
+      }
+
+      g.setParent(v, pathV);
+      v = g.successors(v)[0];
+    }
+  });
+}
+
+// Find a path from v to w through the lowest common ancestor (LCA). Return the
+// full path and the LCA.
+function findPath(g, postorderNums, v, w) {
+  var vPath = [],
+      wPath = [],
+      low = Math.min(postorderNums[v].low, postorderNums[w].low),
+      lim = Math.max(postorderNums[v].lim, postorderNums[w].lim),
+      parent,
+      lca;
+
+  // Traverse up from v to find the LCA
+  parent = v;
+  do {
+    parent = g.parent(parent);
+    vPath.push(parent);
+  } while (parent &&
+           (postorderNums[parent].low > low || lim > postorderNums[parent].lim));
+  lca = parent;
+
+  // Traverse from w to LCA
+  parent = w;
+  while ((parent = g.parent(parent)) !== lca) {
+    wPath.push(parent);
+  }
+
+  return { path: vPath.concat(wPath.reverse()), lca: lca };
+}
+
+function postorder(g) {
+  var result = {},
+      lim = 0;
+
+  function dfs(v) {
+    var low = lim;
+    _.each(g.children(v), dfs);
+    result[v] = { low: low, lim: lim++ };
+  }
+  _.each(g.children(), dfs);
+
+  return result;
+}
+
+},{"./lodash":36}],49:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    util = require("../util");
+
+/*
+ * This module provides coordinate assignment based on Brandes and Köpf, "Fast
+ * and Simple Horizontal Coordinate Assignment."
+ */
+
+module.exports = {
+  positionX: positionX,
+  findType1Conflicts: findType1Conflicts,
+  findType2Conflicts: findType2Conflicts,
+  addConflict: addConflict,
+  hasConflict: hasConflict,
+  verticalAlignment: verticalAlignment,
+  horizontalCompaction: horizontalCompaction,
+  alignCoordinates: alignCoordinates,
+  findSmallestWidthAlignment: findSmallestWidthAlignment,
+  balance: balance
+};
+
+/*
+ * Marks all edges in the graph with a type-1 conflict with the "type1Conflict"
+ * property. A type-1 conflict is one where a non-inner segment crosses an
+ * inner segment. An inner segment is an edge with both incident nodes marked
+ * with the "dummy" property.
+ *
+ * This algorithm scans layer by layer, starting with the second, for type-1
+ * conflicts between the current layer and the previous layer. For each layer
+ * it scans the nodes from left to right until it reaches one that is incident
+ * on an inner segment. It then scans predecessors to determine if they have
+ * edges that cross that inner segment. At the end a final scan is done for all
+ * nodes on the current rank to see if they cross the last visited inner
+ * segment.
+ *
+ * This algorithm (safely) assumes that a dummy node will only be incident on a
+ * single node in the layers being scanned.
+ */
+function findType1Conflicts(g, layering) {
+  var conflicts = {};
+
+  function visitLayer(prevLayer, layer) {
+    var
+      // last visited node in the previous layer that is incident on an inner
+      // segment.
+      k0 = 0,
+      // Tracks the last node in this layer scanned for crossings with a type-1
+      // segment.
+      scanPos = 0,
+      prevLayerLength = prevLayer.length,
+      lastNode = _.last(layer);
+
+    _.each(layer, function(v, i) {
+      var w = findOtherInnerSegmentNode(g, v),
+          k1 = w ? g.node(w).order : prevLayerLength;
+
+      if (w || v === lastNode) {
+        _.each(layer.slice(scanPos, i +1), function(scanNode) {
+          _.each(g.predecessors(scanNode), function(u) {
+            var uLabel = g.node(u),
+                uPos = uLabel.order;
+            if ((uPos < k0 || k1 < uPos) &&
+                !(uLabel.dummy && g.node(scanNode).dummy)) {
+              addConflict(conflicts, u, scanNode);
+            }
+          });
+        });
+        scanPos = i + 1;
+        k0 = k1;
+      }
+    });
+
+    return layer;
+  }
+
+  _.reduce(layering, visitLayer);
+  return conflicts;
+}
+
+function findType2Conflicts(g, layering) {
+  var conflicts = {};
+
+  function scan(south, southPos, southEnd, prevNorthBorder, nextNorthBorder) {
+    var v;
+    _.each(_.range(southPos, southEnd), function(i) {
+      v = south[i];
+      if (g.node(v).dummy) {
+        _.each(g.predecessors(v), function(u) {
+          var uNode = g.node(u);
+          if (uNode.dummy &&
+              (uNode.order < prevNorthBorder || uNode.order > nextNorthBorder)) {
+            addConflict(conflicts, u, v);
+          }
+        });
+      }
+    });
+  }
+
+
+  function visitLayer(north, south) {
+    var prevNorthPos = -1,
+        nextNorthPos,
+        southPos = 0;
+
+    _.each(south, function(v, southLookahead) {
+      if (g.node(v).dummy === "border") {
+        var predecessors = g.predecessors(v);
+        if (predecessors.length) {
+          nextNorthPos = g.node(predecessors[0]).order;
+          scan(south, southPos, southLookahead, prevNorthPos, nextNorthPos);
+          southPos = southLookahead;
+          prevNorthPos = nextNorthPos;
+        }
+      }
+      scan(south, southPos, south.length, nextNorthPos, north.length);
+    });
+
+    return south;
+  }
+
+  _.reduce(layering, visitLayer);
+  return conflicts;
+}
+
+function findOtherInnerSegmentNode(g, v) {
+  if (g.node(v).dummy) {
+    return _.find(g.predecessors(v), function(u) {
+      return g.node(u).dummy;
+    });
+  }
+}
+
+function addConflict(conflicts, v, w) {
+  if (v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+
+  var conflictsV = conflicts[v];
+  if (!conflictsV) {
+    conflicts[v] = conflictsV = {};
+  }
+  conflictsV[w] = true;
+}
+
+function hasConflict(conflicts, v, w) {
+  if (v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  return _.has(conflicts[v], w);
+}
+
+/*
+ * Try to align nodes into vertical "blocks" where possible. This algorithm
+ * attempts to align a node with one of its median neighbors. If the edge
+ * connecting a neighbor is a type-1 conflict then we ignore that possibility.
+ * If a previous node has already formed a block with a node after the node
+ * we're trying to form a block with, we also ignore that possibility - our
+ * blocks would be split in that scenario.
+ */
+function verticalAlignment(g, layering, conflicts, neighborFn) {
+  var root = {},
+      align = {},
+      pos = {};
+
+  // We cache the position here based on the layering because the graph and
+  // layering may be out of sync. The layering matrix is manipulated to
+  // generate different extreme alignments.
+  _.each(layering, function(layer) {
+    _.each(layer, function(v, order) {
+      root[v] = v;
+      align[v] = v;
+      pos[v] = order;
+    });
+  });
+
+  _.each(layering, function(layer) {
+    var prevIdx = -1;
+    _.each(layer, function(v) {
+      var ws = neighborFn(v);
+      if (ws.length) {
+        ws = _.sortBy(ws, function(w) { return pos[w]; });
+        var mp = (ws.length - 1) / 2;
+        for (var i = Math.floor(mp), il = Math.ceil(mp); i <= il; ++i) {
+          var w = ws[i];
+          if (align[v] === v &&
+              prevIdx < pos[w] &&
+              !hasConflict(conflicts, v, w)) {
+            align[w] = v;
+            align[v] = root[v] = root[w];
+            prevIdx = pos[w];
+          }
+        }
+      }
+    });
+  });
+
+  return { root: root, align: align };
+}
+
+function horizontalCompaction(g, layering, root, align, reverseSep) {
+  // We use local variables for these parameters instead of manipulating the
+  // graph because it becomes more verbose to access them in a chained manner.
+  var shift = {},
+      shiftNeighbor = {},
+      sink = {},
+      xs = {},
+      pred = {},
+      graphLabel = g.graph(),
+      sepFn = sep(graphLabel.nodesep, graphLabel.edgesep, reverseSep);
+
+  _.each(layering, function(layer) {
+    _.each(layer, function(v, order) {
+      sink[v] = v;
+      shift[v] = Number.POSITIVE_INFINITY;
+      pred[v] = layer[order - 1];
+    });
+  });
+
+  _.each(g.nodes(), function(v) {
+    if (root[v] === v) {
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v);
+    }
+  });
+
+  _.each(layering, function(layer) {
+    _.each(layer, function(v) {
+      xs[v] = xs[root[v]];
+      // This line differs from the source paper. See
+      // http://www.inf.uni-konstanz.de/~brandes/publications/ for details.
+      if (v === root[v] && shift[sink[root[v]]] < Number.POSITIVE_INFINITY) {
+        xs[v] += shift[sink[root[v]]];
+
+        // Cascade shifts as necessary
+        var w = shiftNeighbor[sink[root[v]]];
+        if (w && shift[w] !== Number.POSITIVE_INFINITY) {
+          xs[v] += shift[w];
+        }
+      }
+    });
+  });
+
+  return xs;
+}
+
+function placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, v) {
+  if (_.has(xs, v)) return;
+  xs[v] = 0;
+
+  var w = v,
+      u;
+  do {
+    if (pred[w]) {
+      u = root[pred[w]];
+      placeBlock(g, layering, sepFn, root, align, shift, shiftNeighbor, sink, pred, xs, u);
+      if (sink[v] === v) {
+        sink[v] = sink[u];
+      }
+
+      var delta = sepFn(g, w, pred[w]);
+      if (sink[v] !== sink[u]) {
+        shift[sink[u]] = Math.min(shift[sink[u]], xs[v] - xs[u] - delta);
+        shiftNeighbor[sink[u]] = sink[v];
+      } else {
+        xs[v] = Math.max(xs[v], xs[u] + delta);
+      }
+    }
+    w = align[w];
+  } while (w !== v);
+}
+
+/*
+ * Returns the alignment that has the smallest width of the given alignments.
+ */
+function findSmallestWidthAlignment(g, xss) {
+  return _.min(xss, function(xs) {
+    var min = _.min(xs, function(x, v) { return x - width(g, v) / 2; }),
+        max = _.max(xs, function(x, v) { return x + width(g, v) / 2; });
+    return max - min;
+  });
+}
+
+/*
+ * Align the coordinates of each of the layout alignments such that
+ * left-biased alignments have their minimum coordinate at the same point as
+ * the minimum coordinate of the smallest width alignment and right-biased
+ * alignments have their maximum coordinate at the same point as the maximum
+ * coordinate of the smallest width alignment.
+ */
+function alignCoordinates(xss, alignTo) {
+  var alignToMin = _.min(alignTo),
+      alignToMax = _.max(alignTo);
+
+  _.each(["u", "d"], function(vert) {
+    _.each(["l", "r"], function(horiz) {
+      var alignment = vert + horiz,
+          xs = xss[alignment],
+          delta;
+      if (xs === alignTo) return;
+
+      delta = horiz === "l" ? alignToMin - _.min(xs) : alignToMax - _.max(xs);
+
+      if (delta) {
+        xss[alignment] = _.mapValues(xs, function(x) { return x + delta; });
+      }
+    });
+  });
+}
+
+function balance(xss, align) {
+  return _.mapValues(xss.ul, function(ignore, v) {
+    if (align) {
+      return xss[align.toLowerCase()][v];
+    } else {
+      var xs = _.sortBy(_.pluck(xss, v));
+      return (xs[1] + xs[2]) / 2;
+    }
+  });
+}
+
+function positionX(g) {
+  var layering = util.buildLayerMatrix(g),
+      conflicts = _.merge(findType1Conflicts(g, layering),
+                          findType2Conflicts(g, layering));
+
+  var xss = {},
+      adjustedLayering;
+  _.each(["u", "d"], function(vert) {
+    adjustedLayering = vert === "u" ? layering : _.values(layering).reverse();
+    _.each(["l", "r"], function(horiz) {
+      if (horiz === "r") {
+        adjustedLayering = _.map(adjustedLayering, function(inner) {
+          return _.values(inner).reverse();
+        });
+      }
+
+      var neighborFn = _.bind(vert === "u" ? g.predecessors : g.successors, g);
+      var align = verticalAlignment(g, adjustedLayering, conflicts, neighborFn);
+      var xs = horizontalCompaction(g, adjustedLayering,
+                                    align.root, align.align,
+                                    horiz === "r");
+      if (horiz === "r") {
+        xs = _.mapValues(xs, function(x) { return -x; });
+      }
+      xss[vert + horiz] = xs;
+    });
+  });
+
+  var smallestWidth = findSmallestWidthAlignment(g, xss);
+  alignCoordinates(xss, smallestWidth);
+  return balance(xss, g.graph().align);
+}
+
+function sep(nodeSep, edgeSep, reverseSep) {
+  return function(g, v, w) {
+    var vLabel = g.node(v),
+        wLabel = g.node(w),
+        sum = 0,
+        delta;
+
+    sum += vLabel.width / 2;
+    if (_.has(vLabel, "labelpos")) {
+      switch (vLabel.labelpos.toLowerCase()) {
+        case "l": delta = -vLabel.width / 2; break;
+        case "r": delta = vLabel.width / 2; break;
+      }
+    }
+    if (delta) {
+      sum += reverseSep ? delta : -delta;
+    }
+    delta = 0;
+
+    sum += (vLabel.dummy ? edgeSep : nodeSep) / 2;
+    sum += (wLabel.dummy ? edgeSep : nodeSep) / 2;
+
+    sum += wLabel.width / 2;
+    if (_.has(wLabel, "labelpos")) {
+      switch (wLabel.labelpos.toLowerCase()) {
+        case "l": delta = wLabel.width / 2; break;
+        case "r": delta = -wLabel.width / 2; break;
+      }
+    }
+    if (delta) {
+      sum += reverseSep ? delta : -delta;
+    }
+    delta = 0;
+
+    return sum;
+  };
+}
+
+function width(g, v) {
+  return g.node(v).width;
+}
+
+},{"../lodash":36,"../util":55}],50:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    util = require("../util"),
+    positionX = require("./bk").positionX;
+
+module.exports = position;
+
+function position(g) {
+  g = util.asNonCompoundGraph(g);
+
+  positionY(g);
+  _.each(positionX(g), function(x, v) {
+    g.node(v).x = x;
+  });
+}
+
+function positionY(g) {
+  var layering = util.buildLayerMatrix(g),
+      rankSep = g.graph().ranksep,
+      prevY = 0;
+  _.each(layering, function(layer) {
+    var maxHeight = _.max(_.map(layer, function(v) { return g.node(v).height; }));
+    _.each(layer, function(v) {
+      g.node(v).y = prevY + maxHeight / 2;
+    });
+    prevY += maxHeight + rankSep;
+  });
+}
+
+
+},{"../lodash":36,"../util":55,"./bk":49}],51:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    Graph = require("../graphlib").Graph,
+    slack = require("./util").slack;
+
+module.exports = feasibleTree;
+
+/*
+ * Constructs a spanning tree with tight edges and adjusted the input node's
+ * ranks to achieve this. A tight edge is one that is has a length that matches
+ * its "minlen" attribute.
+ *
+ * The basic structure for this function is derived from Gansner, et al., "A
+ * Technique for Drawing Directed Graphs."
+ *
+ * Pre-conditions:
+ *
+ *    1. Graph must be a DAG.
+ *    2. Graph must be connected.
+ *    3. Graph must have at least one node.
+ *    5. Graph nodes must have been previously assigned a "rank" property that
+ *       respects the "minlen" property of incident edges.
+ *    6. Graph edges must have a "minlen" property.
+ *
+ * Post-conditions:
+ *
+ *    - Graph nodes will have their rank adjusted to ensure that all edges are
+ *      tight.
+ *
+ * Returns a tree (undirected graph) that is constructed using only "tight"
+ * edges.
+ */
+function feasibleTree(g) {
+  var t = new Graph({ directed: false });
+
+  // Choose arbitrary node from which to start our tree
+  var start = g.nodes()[0],
+      size = g.nodeCount();
+  t.setNode(start, {});
+
+  var edge, delta;
+  while (tightTree(t, g) < size) {
+    edge = findMinSlackEdge(t, g);
+    delta = t.hasNode(edge.v) ? slack(g, edge) : -slack(g, edge);
+    shiftRanks(t, g, delta);
+  }
+
+  return t;
+}
+
+/*
+ * Finds a maximal tree of tight edges and returns the number of nodes in the
+ * tree.
+ */
+function tightTree(t, g) {
+  function dfs(v) {
+    _.each(g.nodeEdges(v), function(e) {
+      var edgeV = e.v,
+          w = (v === edgeV) ? e.w : edgeV;
+      if (!t.hasNode(w) && !slack(g, e)) {
+        t.setNode(w, {});
+        t.setEdge(v, w, {});
+        dfs(w);
+      }
+    });
+  }
+
+  _.each(t.nodes(), dfs);
+  return t.nodeCount();
+}
+
+/*
+ * Finds the edge with the smallest slack that is incident on tree and returns
+ * it.
+ */
+function findMinSlackEdge(t, g) {
+  return _.min(g.edges(), function(e) {
+    if (t.hasNode(e.v) !== t.hasNode(e.w)) {
+      return slack(g, e);
+    }
+  });
+}
+
+function shiftRanks(t, g, delta) {
+  _.each(t.nodes(), function(v) {
+    g.node(v).rank += delta;
+  });
+}
+
+},{"../graphlib":33,"../lodash":36,"./util":54}],52:[function(require,module,exports){
+"use strict";
+
+var rankUtil = require("./util"),
+    longestPath = rankUtil.longestPath,
+    feasibleTree = require("./feasible-tree"),
+    networkSimplex = require("./network-simplex");
+
+module.exports = rank;
+
+/*
+ * Assigns a rank to each node in the input graph that respects the "minlen"
+ * constraint specified on edges between nodes.
+ *
+ * This basic structure is derived from Gansner, et al., "A Technique for
+ * Drawing Directed Graphs."
+ *
+ * Pre-conditions:
+ *
+ *    1. Graph must be a connected DAG
+ *    2. Graph nodes must be objects
+ *    3. Graph edges must have "weight" and "minlen" attributes
+ *
+ * Post-conditions:
+ *
+ *    1. Graph nodes will have a "rank" attribute based on the results of the
+ *       algorithm. Ranks can start at any index (including negative), we'll
+ *       fix them up later.
+ */
+function rank(g) {
+  switch(g.graph().ranker) {
+    case "network-simplex": networkSimplexRanker(g); break;
+    case "tight-tree": tightTreeRanker(g); break;
+    case "longest-path": longestPathRanker(g); break;
+    default: networkSimplexRanker(g);
+  }
+}
+
+// A fast and simple ranker, but results are far from optimal.
+var longestPathRanker = longestPath;
+
+function tightTreeRanker(g) {
+  longestPath(g);
+  feasibleTree(g);
+}
+
+function networkSimplexRanker(g) {
+  networkSimplex(g);
+}
+
+},{"./feasible-tree":51,"./network-simplex":53,"./util":54}],53:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash"),
+    feasibleTree = require("./feasible-tree"),
+    slack = require("./util").slack,
+    initRank = require("./util").longestPath,
+    preorder = require("../graphlib").alg.preorder,
+    postorder = require("../graphlib").alg.postorder,
+    simplify = require("../util").simplify;
+
+module.exports = networkSimplex;
+
+// Expose some internals for testing purposes
+networkSimplex.initLowLimValues = initLowLimValues;
+networkSimplex.initCutValues = initCutValues;
+networkSimplex.calcCutValue = calcCutValue;
+networkSimplex.leaveEdge = leaveEdge;
+networkSimplex.enterEdge = enterEdge;
+networkSimplex.exchangeEdges = exchangeEdges;
+
+/*
+ * The network simplex algorithm assigns ranks to each node in the input graph
+ * and iteratively improves the ranking to reduce the length of edges.
+ *
+ * Preconditions:
+ *
+ *    1. The input graph must be a DAG.
+ *    2. All nodes in the graph must have an object value.
+ *    3. All edges in the graph must have "minlen" and "weight" attributes.
+ *
+ * Postconditions:
+ *
+ *    1. All nodes in the graph will have an assigned "rank" attribute that has
+ *       been optimized by the network simplex algorithm. Ranks start at 0.
+ *
+ *
+ * A rough sketch of the algorithm is as follows:
+ *
+ *    1. Assign initial ranks to each node. We use the longest path algorithm,
+ *       which assigns ranks to the lowest position possible. In general this
+ *       leads to very wide bottom ranks and unnecessarily long edges.
+ *    2. Construct a feasible tight tree. A tight tree is one such that all
+ *       edges in the tree have no slack (difference between length of edge
+ *       and minlen for the edge). This by itself greatly improves the assigned
+ *       rankings by shorting edges.
+ *    3. Iteratively find edges that have negative cut values. Generally a
+ *       negative cut value indicates that the edge could be removed and a new
+ *       tree edge could be added to produce a more compact graph.
+ *
+ * Much of the algorithms here are derived from Gansner, et al., "A Technique
+ * for Drawing Directed Graphs." The structure of the file roughly follows the
+ * structure of the overall algorithm.
+ */
+function networkSimplex(g) {
+  g = simplify(g);
+  initRank(g);
+  var t = feasibleTree(g);
+  initLowLimValues(t);
+  initCutValues(t, g);
+
+  var e, f;
+  while ((e = leaveEdge(t))) {
+    f = enterEdge(t, g, e);
+    exchangeEdges(t, g, e, f);
+  }
+}
+
+/*
+ * Initializes cut values for all edges in the tree.
+ */
+function initCutValues(t, g) {
+  var vs = postorder(t, t.nodes());
+  vs = vs.slice(0, vs.length - 1);
+  _.each(vs, function(v) {
+    assignCutValue(t, g, v);
+  });
+}
+
+function assignCutValue(t, g, child) {
+  var childLab = t.node(child),
+      parent = childLab.parent;
+  t.edge(child, parent).cutvalue = calcCutValue(t, g, child);
+}
+
+/*
+ * Given the tight tree, its graph, and a child in the graph calculate and
+ * return the cut value for the edge between the child and its parent.
+ */
+function calcCutValue(t, g, child) {
+  var childLab = t.node(child),
+      parent = childLab.parent,
+      // True if the child is on the tail end of the edge in the directed graph
+      childIsTail = true,
+      // The graph's view of the tree edge we're inspecting
+      graphEdge = g.edge(child, parent),
+      // The accumulated cut value for the edge between this node and its parent
+      cutValue = 0;
+
+  if (!graphEdge) {
+    childIsTail = false;
+    graphEdge = g.edge(parent, child);
+  }
+
+  cutValue = graphEdge.weight;
+
+  _.each(g.nodeEdges(child), function(e) {
+    var isOutEdge = e.v === child,
+        other = isOutEdge ? e.w : e.v;
+
+    if (other !== parent) {
+      var pointsToHead = isOutEdge === childIsTail,
+          otherWeight = g.edge(e).weight;
+
+      cutValue += pointsToHead ? otherWeight : -otherWeight;
+      if (isTreeEdge(t, child, other)) {
+        var otherCutValue = t.edge(child, other).cutvalue;
+        cutValue += pointsToHead ? -otherCutValue : otherCutValue;
+      }
+    }
+  });
+
+  return cutValue;
+}
+
+function initLowLimValues(tree, root) {
+  if (arguments.length < 2) {
+    root = tree.nodes()[0];
+  }
+  dfsAssignLowLim(tree, {}, 1, root);
+}
+
+function dfsAssignLowLim(tree, visited, nextLim, v, parent) {
+  var low = nextLim,
+      label = tree.node(v);
+
+  visited[v] = true;
+  _.each(tree.neighbors(v), function(w) {
+    if (!_.has(visited, w)) {
+      nextLim = dfsAssignLowLim(tree, visited, nextLim, w, v);
+    }
+  });
+
+  label.low = low;
+  label.lim = nextLim++;
+  if (parent) {
+    label.parent = parent;
+  } else {
+    // TODO should be able to remove this when we incrementally update low lim
+    delete label.parent;
+  }
+
+  return nextLim;
+}
+
+function leaveEdge(tree) {
+  return _.find(tree.edges(), function(e) {
+    return tree.edge(e).cutvalue < 0;
+  });
+}
+
+function enterEdge(t, g, edge) {
+  var v = edge.v,
+      w = edge.w;
+
+  // For the rest of this function we assume that v is the tail and w is the
+  // head, so if we don't have this edge in the graph we should flip it to
+  // match the correct orientation.
+  if (!g.hasEdge(v, w)) {
+    v = edge.w;
+    w = edge.v;
+  }
+
+  var vLabel = t.node(v),
+      wLabel = t.node(w),
+      tailLabel = vLabel,
+      flip = false;
+
+  // If the root is in the tail of the edge then we need to flip the logic that
+  // checks for the head and tail nodes in the candidates function below.
+  if (vLabel.lim > wLabel.lim) {
+    tailLabel = wLabel;
+    flip = true;
+  }
+
+  var candidates = _.filter(g.edges(), function(edge) {
+    return flip === isDescendant(t, t.node(edge.v), tailLabel) &&
+           flip !== isDescendant(t, t.node(edge.w), tailLabel);
+  });
+
+  return _.min(candidates, function(edge) { return slack(g, edge); });
+}
+
+function exchangeEdges(t, g, e, f) {
+  var v = e.v,
+      w = e.w;
+  t.removeEdge(v, w);
+  t.setEdge(f.v, f.w, {});
+  initLowLimValues(t);
+  initCutValues(t, g);
+  updateRanks(t, g);
+}
+
+function updateRanks(t, g) {
+  var root = _.find(t.nodes(), function(v) { return !g.node(v).parent; }),
+      vs = preorder(t, root);
+  vs = vs.slice(1);
+  _.each(vs, function(v) {
+    var parent = t.node(v).parent,
+        edge = g.edge(v, parent),
+        flipped = false;
+
+    if (!edge) {
+      edge = g.edge(parent, v);
+      flipped = true;
+    }
+
+    g.node(v).rank = g.node(parent).rank + (flipped ? edge.minlen : -edge.minlen);
+  });
+}
+
+/*
+ * Returns true if the edge is in the tree.
+ */
+function isTreeEdge(tree, u, v) {
+  return tree.hasEdge(u, v);
+}
+
+/*
+ * Returns true if the specified node is descendant of the root node per the
+ * assigned low and lim attributes in the tree.
+ */
+function isDescendant(tree, vLabel, rootLabel) {
+  return rootLabel.low <= vLabel.lim && vLabel.lim <= rootLabel.lim;
+}
+
+},{"../graphlib":33,"../lodash":36,"../util":55,"./feasible-tree":51,"./util":54}],54:[function(require,module,exports){
+"use strict";
+
+var _ = require("../lodash");
+
+module.exports = {
+  longestPath: longestPath,
+  slack: slack
+};
+
+/*
+ * Initializes ranks for the input graph using the longest path algorithm. This
+ * algorithm scales well and is fast in practice, it yields rather poor
+ * solutions. Nodes are pushed to the lowest layer possible, leaving the bottom
+ * ranks wide and leaving edges longer than necessary. However, due to its
+ * speed, this algorithm is good for getting an initial ranking that can be fed
+ * into other algorithms.
+ *
+ * This algorithm does not normalize layers because it will be used by other
+ * algorithms in most cases. If using this algorithm directly, be sure to
+ * run normalize at the end.
+ *
+ * Pre-conditions:
+ *
+ *    1. Input graph is a DAG.
+ *    2. Input graph node labels can be assigned properties.
+ *
+ * Post-conditions:
+ *
+ *    1. Each node will be assign an (unnormalized) "rank" property.
+ */
+function longestPath(g) {
+  var visited = {};
+
+  function dfs(v) {
+    var label = g.node(v);
+    if (_.has(visited, v)) {
+      return label.rank;
+    }
+    visited[v] = true;
+
+    var rank = _.min(_.map(g.outEdges(v), function(e) {
+      return dfs(e.w) - g.edge(e).minlen;
+    }));
+
+    if (rank === Number.POSITIVE_INFINITY) {
+      rank = 0;
+    }
+
+    return (label.rank = rank);
+  }
+
+  _.each(g.sources(), dfs);
+}
+
+/*
+ * Returns the amount of slack for the given edge. The slack is defined as the
+ * difference between the length of the edge and its minimum length.
+ */
+function slack(g, e) {
+  return g.node(e.w).rank - g.node(e.v).rank - g.edge(e).minlen;
+}
+
+},{"../lodash":36}],55:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash"),
+    Graph = require("./graphlib").Graph;
+
+module.exports = {
+  addDummyNode: addDummyNode,
+  simplify: simplify,
+  asNonCompoundGraph: asNonCompoundGraph,
+  successorWeights: successorWeights,
+  predecessorWeights: predecessorWeights,
+  intersectRect: intersectRect,
+  buildLayerMatrix: buildLayerMatrix,
+  normalizeRanks: normalizeRanks,
+  removeEmptyRanks: removeEmptyRanks,
+  addBorderNode: addBorderNode,
+  maxRank: maxRank,
+  partition: partition,
+  time: time,
+  notime: notime
+};
+
+/*
+ * Adds a dummy node to the graph and return v.
+ */
+function addDummyNode(g, type, attrs, name) {
+  var v;
+  do {
+    v = _.uniqueId(name);
+  } while (g.hasNode(v));
+
+  attrs.dummy = type;
+  g.setNode(v, attrs);
+  return v;
+}
+
+/*
+ * Returns a new graph with only simple edges. Handles aggregation of data
+ * associated with multi-edges.
+ */
+function simplify(g) {
+  var simplified = new Graph().setGraph(g.graph());
+  _.each(g.nodes(), function(v) { simplified.setNode(v, g.node(v)); });
+  _.each(g.edges(), function(e) {
+    var simpleLabel = simplified.edge(e.v, e.w) || { weight: 0, minlen: 1 },
+        label = g.edge(e);
+    simplified.setEdge(e.v, e.w, {
+      weight: simpleLabel.weight + label.weight,
+      minlen: Math.max(simpleLabel.minlen, label.minlen)
+    });
+  });
+  return simplified;
+}
+
+function asNonCompoundGraph(g) {
+  var simplified = new Graph({ multigraph: g.isMultigraph() }).setGraph(g.graph());
+  _.each(g.nodes(), function(v) {
+    if (!g.children(v).length) {
+      simplified.setNode(v, g.node(v));
+    }
+  });
+  _.each(g.edges(), function(e) {
+    simplified.setEdge(e, g.edge(e));
+  });
+  return simplified;
+}
+
+function successorWeights(g) {
+  var weightMap = _.map(g.nodes(), function(v) {
+    var sucs = {};
+    _.each(g.outEdges(v), function(e) {
+      sucs[e.w] = (sucs[e.w] || 0) + g.edge(e).weight;
+    });
+    return sucs;
+  });
+  return _.zipObject(g.nodes(), weightMap);
+}
+
+function predecessorWeights(g) {
+  var weightMap = _.map(g.nodes(), function(v) {
+    var preds = {};
+    _.each(g.inEdges(v), function(e) {
+      preds[e.v] = (preds[e.v] || 0) + g.edge(e).weight;
+    });
+    return preds;
+  });
+  return _.zipObject(g.nodes(), weightMap);
+}
+
+/*
+ * Finds where a line starting at point ({x, y}) would intersect a rectangle
+ * ({x, y, width, height}) if it were pointing at the rectangle's center.
+ */
+function intersectRect(rect, point) {
+  var x = rect.x;
+  var y = rect.y;
+
+  // Rectangle intersection algorithm from:
+  // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes
+  var dx = point.x - x;
+  var dy = point.y - y;
+  var w = rect.width / 2;
+  var h = rect.height / 2;
+
+  if (!dx && !dy) {
+    throw new Error("Not possible to find intersection inside of the rectangle");
+  }
+
+  var sx, sy;
+  if (Math.abs(dy) * w > Math.abs(dx) * h) {
+    // Intersection is top or bottom of rect.
+    if (dy < 0) {
+      h = -h;
+    }
+    sx = h * dx / dy;
+    sy = h;
+  } else {
+    // Intersection is left or right of rect.
+    if (dx < 0) {
+      w = -w;
+    }
+    sx = w;
+    sy = w * dy / dx;
+  }
+
+  return { x: x + sx, y: y + sy };
+}
+
+/*
+ * Given a DAG with each node assigned "rank" and "order" properties, this
+ * function will produce a matrix with the ids of each node.
+ */
+function buildLayerMatrix(g) {
+  var layering = _.map(_.range(maxRank(g) + 1), function() { return []; });
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v),
+        rank = node.rank;
+    if (!_.isUndefined(rank)) {
+      layering[rank][node.order] = v;
+    }
+  });
+  return layering;
+}
+
+/*
+ * Adjusts the ranks for all nodes in the graph such that all nodes v have
+ * rank(v) >= 0 and at least one node w has rank(w) = 0.
+ */
+function normalizeRanks(g) {
+  var min = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; }));
+  _.each(g.nodes(), function(v) {
+    var node = g.node(v);
+    if (_.has(node, "rank")) {
+      node.rank -= min;
+    }
+  });
+}
+
+function removeEmptyRanks(g) {
+  // Ranks may not start at 0, so we need to offset them
+  var offset = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; }));
+
+  var layers = [];
+  _.each(g.nodes(), function(v) {
+    var rank = g.node(v).rank - offset;
+    if (!_.has(layers, rank)) {
+      layers[rank] = [];
+    }
+    layers[rank].push(v);
+  });
+
+  var delta = 0,
+      nodeRankFactor = g.graph().nodeRankFactor;
+  _.each(layers, function(vs, i) {
+    if (_.isUndefined(vs) && i % nodeRankFactor !== 0) {
+      --delta;
+    } else if (delta) {
+      _.each(vs, function(v) { g.node(v).rank += delta; });
+    }
+  });
+}
+
+function addBorderNode(g, prefix, rank, order) {
+  var node = {
+    width: 0,
+    height: 0
+  };
+  if (arguments.length >= 4) {
+    node.rank = rank;
+    node.order = order;
+  }
+  return addDummyNode(g, "border", node, prefix);
+}
+
+function maxRank(g) {
+  return _.max(_.map(g.nodes(), function(v) {
+    var rank = g.node(v).rank;
+    if (!_.isUndefined(rank)) {
+      return rank;
+    }
+  }));
+}
+
+/*
+ * Partition a collection into two groups: `lhs` and `rhs`. If the supplied
+ * function returns true for an entry it goes into `lhs`. Otherwise it goes
+ * into `rhs.
+ */
+function partition(collection, fn) {
+  var result = { lhs: [], rhs: [] };
+  _.each(collection, function(value) {
+    if (fn(value)) {
+      result.lhs.push(value);
+    } else {
+      result.rhs.push(value);
+    }
+  });
+  return result;
+}
+
+/*
+ * Returns a new function that wraps `fn` with a timer. The wrapper logs the
+ * time it takes to execute the function.
+ */
+function time(name, fn) {
+  var start = _.now();
+  try {
+    return fn();
+  } finally {
+    console.log(name + " time: " + (_.now() - start) + "ms");
+  }
+}
+
+function notime(name, fn) {
+  return fn();
+}
+
+},{"./graphlib":33,"./lodash":36}],56:[function(require,module,exports){
+module.exports = "0.6.4";
+
+},{}],57:[function(require,module,exports){
+/**
+ * Copyright (c) 2014, Chris Pettitt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+var lib = require("./lib");
+
+module.exports = {
+  Graph: lib.Graph,
+  json: require("./lib/json"),
+  alg: require("./lib/alg"),
+  version: lib.version
+};
+
+},{"./lib":73,"./lib/alg":64,"./lib/json":74}],58:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = components;
+
+function components(g) {
+  var visited = {},
+      cmpts = [],
+      cmpt;
+
+  function dfs(v) {
+    if (_.has(visited, v)) return;
+    visited[v] = true;
+    cmpt.push(v);
+    _.each(g.successors(v), dfs);
+    _.each(g.predecessors(v), dfs);
+  }
+
+  _.each(g.nodes(), function(v) {
+    cmpt = [];
+    dfs(v);
+    if (cmpt.length) {
+      cmpts.push(cmpt);
+    }
+  });
+
+  return cmpts;
+}
+
+},{"../lodash":75}],59:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = dfs;
+
+/*
+ * A helper that preforms a pre- or post-order traversal on the input graph
+ * and returns the nodes in the order they were visited. This algorithm treats
+ * the input as undirected.
+ *
+ * Order must be one of "pre" or "post".
+ */
+function dfs(g, vs, order) {
+  if (!_.isArray(vs)) {
+    vs = [vs];
+  }
+
+  var acc = [],
+      visited = {};
+  _.each(vs, function(v) {
+    if (!g.hasNode(v)) {
+      throw new Error("Graph does not have node: " + v);
+    }
+
+    doDfs(g, v, order === "post", visited, acc);
+  });
+  return acc;
+}
+
+function doDfs(g, v, postorder, visited, acc) {
+  if (!_.has(visited, v)) {
+    visited[v] = true;
+
+    if (!postorder) { acc.push(v); }
+    _.each(g.neighbors(v), function(w) {
+      doDfs(g, w, postorder, visited, acc);
+    });
+    if (postorder) { acc.push(v); }
+  }
+}
+
+},{"../lodash":75}],60:[function(require,module,exports){
+var dijkstra = require("./dijkstra"),
+    _ = require("../lodash");
+
+module.exports = dijkstraAll;
+
+function dijkstraAll(g, weightFunc, edgeFunc) {
+  return _.transform(g.nodes(), function(acc, v) {
+    acc[v] = dijkstra(g, v, weightFunc, edgeFunc);
+  }, {});
+}
+
+},{"../lodash":75,"./dijkstra":61}],61:[function(require,module,exports){
+var _ = require("../lodash"),
+    PriorityQueue = require("../data/priority-queue");
+
+module.exports = dijkstra;
+
+var DEFAULT_WEIGHT_FUNC = _.constant(1);
+
+function dijkstra(g, source, weightFn, edgeFn) {
+  return runDijkstra(g, String(source),
+                     weightFn || DEFAULT_WEIGHT_FUNC,
+                     edgeFn || function(v) { return g.outEdges(v); });
+}
+
+function runDijkstra(g, source, weightFn, edgeFn) {
+  var results = {},
+      pq = new PriorityQueue(),
+      v, vEntry;
+
+  var updateNeighbors = function(edge) {
+    var w = edge.v !== v ? edge.v : edge.w,
+        wEntry = results[w],
+        weight = weightFn(edge),
+        distance = vEntry.distance + weight;
+
+    if (weight < 0) {
+      throw new Error("dijkstra does not allow negative edge weights. " +
+                      "Bad edge: " + edge + " Weight: " + weight);
+    }
+
+    if (distance < wEntry.distance) {
+      wEntry.distance = distance;
+      wEntry.predecessor = v;
+      pq.decrease(w, distance);
+    }
+  };
+
+  g.nodes().forEach(function(v) {
+    var distance = v === source ? 0 : Number.POSITIVE_INFINITY;
+    results[v] = { distance: distance };
+    pq.add(v, distance);
+  });
+
+  while (pq.size() > 0) {
+    v = pq.removeMin();
+    vEntry = results[v];
+    if (vEntry.distance === Number.POSITIVE_INFINITY) {
+      break;
+    }
+
+    edgeFn(v).forEach(updateNeighbors);
+  }
+
+  return results;
+}
+
+},{"../data/priority-queue":71,"../lodash":75}],62:[function(require,module,exports){
+var _ = require("../lodash"),
+    tarjan = require("./tarjan");
+
+module.exports = findCycles;
+
+function findCycles(g) {
+  return _.filter(tarjan(g), function(cmpt) { return cmpt.length > 1; });
+}
+
+},{"../lodash":75,"./tarjan":69}],63:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = floydWarshall;
+
+var DEFAULT_WEIGHT_FUNC = _.constant(1);
+
+function floydWarshall(g, weightFn, edgeFn) {
+  return runFloydWarshall(g,
+                          weightFn || DEFAULT_WEIGHT_FUNC,
+                          edgeFn || function(v) { return g.outEdges(v); });
+}
+
+function runFloydWarshall(g, weightFn, edgeFn) {
+  var results = {},
+      nodes = g.nodes();
+
+  nodes.forEach(function(v) {
+    results[v] = {};
+    results[v][v] = { distance: 0 };
+    nodes.forEach(function(w) {
+      if (v !== w) {
+        results[v][w] = { distance: Number.POSITIVE_INFINITY };
+      }
+    });
+    edgeFn(v).forEach(function(edge) {
+      var w = edge.v === v ? edge.w : edge.v,
+          d = weightFn(edge);
+      results[v][w] = { distance: d, predecessor: v };
+    });
+  });
+
+  nodes.forEach(function(k) {
+    var rowK = results[k];
+    nodes.forEach(function(i) {
+      var rowI = results[i];
+      nodes.forEach(function(j) {
+        var ik = rowI[k];
+        var kj = rowK[j];
+        var ij = rowI[j];
+        var altDistance = ik.distance + kj.distance;
+        if (altDistance < ij.distance) {
+          ij.distance = altDistance;
+          ij.predecessor = kj.predecessor;
+        }
+      });
+    });
+  });
+
+  return results;
+}
+
+},{"../lodash":75}],64:[function(require,module,exports){
+module.exports = {
+  components: require("./components"),
+  dijkstra: require("./dijkstra"),
+  dijkstraAll: require("./dijkstra-all"),
+  findCycles: require("./find-cycles"),
+  floydWarshall: require("./floyd-warshall"),
+  isAcyclic: require("./is-acyclic"),
+  postorder: require("./postorder"),
+  preorder: require("./preorder"),
+  prim: require("./prim"),
+  tarjan: require("./tarjan"),
+  topsort: require("./topsort")
+};
+
+},{"./components":58,"./dijkstra":61,"./dijkstra-all":60,"./find-cycles":62,"./floyd-warshall":63,"./is-acyclic":65,"./postorder":66,"./preorder":67,"./prim":68,"./tarjan":69,"./topsort":70}],65:[function(require,module,exports){
+var topsort = require("./topsort");
+
+module.exports = isAcyclic;
+
+function isAcyclic(g) {
+  try {
+    topsort(g);
+  } catch (e) {
+    if (e instanceof topsort.CycleException) {
+      return false;
+    }
+    throw e;
+  }
+  return true;
+}
+
+},{"./topsort":70}],66:[function(require,module,exports){
+var dfs = require("./dfs");
+
+module.exports = postorder;
+
+function postorder(g, vs) {
+  return dfs(g, vs, "post");
+}
+
+},{"./dfs":59}],67:[function(require,module,exports){
+var dfs = require("./dfs");
+
+module.exports = preorder;
+
+function preorder(g, vs) {
+  return dfs(g, vs, "pre");
+}
+
+},{"./dfs":59}],68:[function(require,module,exports){
+var _ = require("../lodash"),
+    Graph = require("../graph"),
+    PriorityQueue = require("../data/priority-queue");
+
+module.exports = prim;
+
+function prim(g, weightFunc) {
+  var result = new Graph(),
+      parents = {},
+      pq = new PriorityQueue(),
+      v;
+
+  function updateNeighbors(edge) {
+    var w = edge.v === v ? edge.w : edge.v,
+        pri = pq.priority(w);
+    if (pri !== undefined) {
+      var edgeWeight = weightFunc(edge);
+      if (edgeWeight < pri) {
+        parents[w] = v;
+        pq.decrease(w, edgeWeight);
+      }
+    }
+  }
+
+  if (g.nodeCount() === 0) {
+    return result;
+  }
+
+  _.each(g.nodes(), function(v) {
+    pq.add(v, Number.POSITIVE_INFINITY);
+    result.setNode(v);
+  });
+
+  // Start from an arbitrary node
+  pq.decrease(g.nodes()[0], 0);
+
+  var init = false;
+  while (pq.size() > 0) {
+    v = pq.removeMin();
+    if (_.has(parents, v)) {
+      result.setEdge(v, parents[v]);
+    } else if (init) {
+      throw new Error("Input graph is not connected: " + g);
+    } else {
+      init = true;
+    }
+
+    g.nodeEdges(v).forEach(updateNeighbors);
+  }
+
+  return result;
+}
+
+},{"../data/priority-queue":71,"../graph":72,"../lodash":75}],69:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = tarjan;
+
+function tarjan(g) {
+  var index = 0,
+      stack = [],
+      visited = {}, // node id -> { onStack, lowlink, index }
+      results = [];
+
+  function dfs(v) {
+    var entry = visited[v] = {
+      onStack: true,
+      lowlink: index,
+      index: index++
+    };
+    stack.push(v);
+
+    g.successors(v).forEach(function(w) {
+      if (!_.has(visited, w)) {
+        dfs(w);
+        entry.lowlink = Math.min(entry.lowlink, visited[w].lowlink);
+      } else if (visited[w].onStack) {
+        entry.lowlink = Math.min(entry.lowlink, visited[w].index);
+      }
+    });
+
+    if (entry.lowlink === entry.index) {
+      var cmpt = [],
+          w;
+      do {
+        w = stack.pop();
+        visited[w].onStack = false;
+        cmpt.push(w);
+      } while (v !== w);
+      results.push(cmpt);
+    }
+  }
+
+  g.nodes().forEach(function(v) {
+    if (!_.has(visited, v)) {
+      dfs(v);
+    }
+  });
+
+  return results;
+}
+
+},{"../lodash":75}],70:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = topsort;
+topsort.CycleException = CycleException;
+
+function topsort(g) {
+  var visited = {},
+      stack = {},
+      results = [];
+
+  function visit(node) {
+    if (_.has(stack, node)) {
+      throw new CycleException();
+    }
+
+    if (!_.has(visited, node)) {
+      stack[node] = true;
+      visited[node] = true;
+      _.each(g.predecessors(node), visit);
+      delete stack[node];
+      results.push(node);
+    }
+  }
+
+  _.each(g.sinks(), visit);
+
+  if (_.size(visited) !== g.nodeCount()) {
+    throw new CycleException();
+  }
+
+  return results;
+}
+
+function CycleException() {}
+
+},{"../lodash":75}],71:[function(require,module,exports){
+var _ = require("../lodash");
+
+module.exports = PriorityQueue;
+
+/**
+ * A min-priority queue data structure. This algorithm is derived from Cormen,
+ * et al., "Introduction to Algorithms". The basic idea of a min-priority
+ * queue is that you can efficiently (in O(1) time) get the smallest key in
+ * the queue. Adding and removing elements takes O(log n) time. A key can
+ * have its priority decreased in O(log n) time.
+ */
+function PriorityQueue() {
+  this._arr = [];
+  this._keyIndices = {};
+}
+
+/**
+ * Returns the number of elements in the queue. Takes `O(1)` time.
+ */
+PriorityQueue.prototype.size = function() {
+  return this._arr.length;
+};
+
+/**
+ * Returns the keys that are in the queue. Takes `O(n)` time.
+ */
+PriorityQueue.prototype.keys = function() {
+  return this._arr.map(function(x) { return x.key; });
+};
+
+/**
+ * Returns `true` if **key** is in the queue and `false` if not.
+ */
+PriorityQueue.prototype.has = function(key) {
+  return _.has(this._keyIndices, key);
+};
+
+/**
+ * Returns the priority for **key**. If **key** is not present in the queue
+ * then this function returns `undefined`. Takes `O(1)` time.
+ *
+ * @param {Object} key
+ */
+PriorityQueue.prototype.priority = function(key) {
+  var index = this._keyIndices[key];
+  if (index !== undefined) {
+    return this._arr[index].priority;
+  }
+};
+
+/**
+ * Returns the key for the minimum element in this queue. If the queue is
+ * empty this function throws an Error. Takes `O(1)` time.
+ */
+PriorityQueue.prototype.min = function() {
+  if (this.size() === 0) {
+    throw new Error("Queue underflow");
+  }
+  return this._arr[0].key;
+};
+
+/**
+ * Inserts a new key into the priority queue. If the key already exists in
+ * the queue this function returns `false`; otherwise it will return `true`.
+ * Takes `O(n)` time.
+ *
+ * @param {Object} key the key to add
+ * @param {Number} priority the initial priority for the key
+ */
+PriorityQueue.prototype.add = function(key, priority) {
+  var keyIndices = this._keyIndices;
+  key = String(key);
+  if (!_.has(keyIndices, key)) {
+    var arr = this._arr;
+    var index = arr.length;
+    keyIndices[key] = index;
+    arr.push({key: key, priority: priority});
+    this._decrease(index);
+    return true;
+  }
+  return false;
+};
+
+/**
+ * Removes and returns the smallest key in the queue. Takes `O(log n)` time.
+ */
+PriorityQueue.prototype.removeMin = function() {
+  this._swap(0, this._arr.length - 1);
+  var min = this._arr.pop();
+  delete this._keyIndices[min.key];
+  this._heapify(0);
+  return min.key;
+};
+
+/**
+ * Decreases the priority for **key** to **priority**. If the new priority is
+ * greater than the previous priority, this function will throw an Error.
+ *
+ * @param {Object} key the key for which to raise priority
+ * @param {Number} priority the new priority for the key
+ */
+PriorityQueue.prototype.decrease = function(key, priority) {
+  var index = this._keyIndices[key];
+  if (priority > this._arr[index].priority) {
+    throw new Error("New priority is greater than current priority. " +
+        "Key: " + key + " Old: " + this._arr[index].priority + " New: " + priority);
+  }
+  this._arr[index].priority = priority;
+  this._decrease(index);
+};
+
+PriorityQueue.prototype._heapify = function(i) {
+  var arr = this._arr;
+  var l = 2 * i,
+      r = l + 1,
+      largest = i;
+  if (l < arr.length) {
+    largest = arr[l].priority < arr[largest].priority ? l : largest;
+    if (r < arr.length) {
+      largest = arr[r].priority < arr[largest].priority ? r : largest;
+    }
+    if (largest !== i) {
+      this._swap(i, largest);
+      this._heapify(largest);
+    }
+  }
+};
+
+PriorityQueue.prototype._decrease = function(index) {
+  var arr = this._arr;
+  var priority = arr[index].priority;
+  var parent;
+  while (index !== 0) {
+    parent = index >> 1;
+    if (arr[parent].priority < priority) {
+      break;
+    }
+    this._swap(index, parent);
+    index = parent;
+  }
+};
+
+PriorityQueue.prototype._swap = function(i, j) {
+  var arr = this._arr;
+  var keyIndices = this._keyIndices;
+  var origArrI = arr[i];
+  var origArrJ = arr[j];
+  arr[i] = origArrJ;
+  arr[j] = origArrI;
+  keyIndices[origArrJ.key] = i;
+  keyIndices[origArrI.key] = j;
+};
+
+},{"../lodash":75}],72:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash");
+
+module.exports = Graph;
+
+var DEFAULT_EDGE_NAME = "\x00",
+    GRAPH_NODE = "\x00",
+    EDGE_KEY_DELIM = "\x01";
+
+// Implementation notes:
+//
+//  * Node id query functions should return string ids for the nodes
+//  * Edge id query functions should return an "edgeObj", edge object, that is
+//    composed of enough information to uniquely identify an edge: {v, w, name}.
+//  * Internally we use an "edgeId", a stringified form of the edgeObj, to
+//    reference edges. This is because we need a performant way to look these
+//    edges up and, object properties, which have string keys, are the closest
+//    we're going to get to a performant hashtable in JavaScript.
+
+function Graph(opts) {
+  this._isDirected = _.has(opts, "directed") ? opts.directed : true;
+  this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false;
+  this._isCompound = _.has(opts, "compound") ? opts.compound : false;
+
+  // Label for the graph itself
+  this._label = undefined;
+
+  // Defaults to be set when creating a new node
+  this._defaultNodeLabelFn = _.constant(undefined);
+
+  // Defaults to be set when creating a new edge
+  this._defaultEdgeLabelFn = _.constant(undefined);
+
+  // v -> label
+  this._nodes = {};
+
+  if (this._isCompound) {
+    // v -> parent
+    this._parent = {};
+
+    // v -> children
+    this._children = {};
+    this._children[GRAPH_NODE] = {};
+  }
+
+  // v -> edgeObj
+  this._in = {};
+
+  // u -> v -> Number
+  this._preds = {};
+
+  // v -> edgeObj
+  this._out = {};
+
+  // v -> w -> Number
+  this._sucs = {};
+
+  // e -> edgeObj
+  this._edgeObjs = {};
+
+  // e -> label
+  this._edgeLabels = {};
+}
+
+/* Number of nodes in the graph. Should only be changed by the implementation. */
+Graph.prototype._nodeCount = 0;
+
+/* Number of edges in the graph. Should only be changed by the implementation. */
+Graph.prototype._edgeCount = 0;
+
+
+/* === Graph functions ========= */
+
+Graph.prototype.isDirected = function() {
+  return this._isDirected;
+};
+
+Graph.prototype.isMultigraph = function() {
+  return this._isMultigraph;
+};
+
+Graph.prototype.isCompound = function() {
+  return this._isCompound;
+};
+
+Graph.prototype.setGraph = function(label) {
+  this._label = label;
+  return this;
+};
+
+Graph.prototype.graph = function() {
+  return this._label;
+};
+
+
+/* === Node functions ========== */
+
+Graph.prototype.setDefaultNodeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultNodeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.nodeCount = function() {
+  return this._nodeCount;
+};
+
+Graph.prototype.nodes = function() {
+  return _.keys(this._nodes);
+};
+
+Graph.prototype.sources = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._in[v]);
+  }, this);
+};
+
+Graph.prototype.sinks = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._out[v]);
+  }, this);
+};
+
+Graph.prototype.setNodes = function(vs, value) {
+  var args = arguments;
+  _.each(vs, function(v) {
+    if (args.length > 1) {
+      this.setNode(v, value);
+    } else {
+      this.setNode(v);
+    }
+  }, this);
+  return this;
+};
+
+Graph.prototype.setNode = function(v, value) {
+  if (_.has(this._nodes, v)) {
+    if (arguments.length > 1) {
+      this._nodes[v] = value;
+    }
+    return this;
+  }
+
+  this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v);
+  if (this._isCompound) {
+    this._parent[v] = GRAPH_NODE;
+    this._children[v] = {};
+    this._children[GRAPH_NODE][v] = true;
+  }
+  this._in[v] = {};
+  this._preds[v] = {};
+  this._out[v] = {};
+  this._sucs[v] = {};
+  ++this._nodeCount;
+  return this;
+};
+
+Graph.prototype.node = function(v) {
+  return this._nodes[v];
+};
+
+Graph.prototype.hasNode = function(v) {
+  return _.has(this._nodes, v);
+};
+
+Graph.prototype.removeNode =  function(v) {
+  var self = this;
+  if (_.has(this._nodes, v)) {
+    var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); };
+    delete this._nodes[v];
+    if (this._isCompound) {
+      this._removeFromParentsChildList(v);
+      delete this._parent[v];
+      _.each(this.children(v), function(child) {
+        this.setParent(child);
+      }, this);
+      delete this._children[v];
+    }
+    _.each(_.keys(this._in[v]), removeEdge);
+    delete this._in[v];
+    delete this._preds[v];
+    _.each(_.keys(this._out[v]), removeEdge);
+    delete this._out[v];
+    delete this._sucs[v];
+    --this._nodeCount;
+  }
+  return this;
+};
+
+Graph.prototype.setParent = function(v, parent) {
+  if (!this._isCompound) {
+    throw new Error("Cannot set parent in a non-compound graph");
+  }
+
+  if (_.isUndefined(parent)) {
+    parent = GRAPH_NODE;
+  } else {
+    for (var ancestor = parent;
+         !_.isUndefined(ancestor);
+         ancestor = this.parent(ancestor)) {
+      if (ancestor === v) {
+        throw new Error("Setting " + parent+ " as parent of " + v +
+                        " would create create a cycle");
+      }
+    }
+
+    this.setNode(parent);
+  }
+
+  this.setNode(v);
+  this._removeFromParentsChildList(v);
+  this._parent[v] = parent;
+  this._children[parent][v] = true;
+  return this;
+};
+
+Graph.prototype._removeFromParentsChildList = function(v) {
+  delete this._children[this._parent[v]][v];
+};
+
+Graph.prototype.parent = function(v) {
+  if (this._isCompound) {
+    var parent = this._parent[v];
+    if (parent !== GRAPH_NODE) {
+      return parent;
+    }
+  }
+};
+
+Graph.prototype.children = function(v) {
+  if (_.isUndefined(v)) {
+    v = GRAPH_NODE;
+  }
+
+  if (this._isCompound) {
+    var children = this._children[v];
+    if (children) {
+      return _.keys(children);
+    }
+  } else if (v === GRAPH_NODE) {
+    return this.nodes();
+  } else if (this.hasNode(v)) {
+    return [];
+  }
+};
+
+Graph.prototype.predecessors = function(v) {
+  var predsV = this._preds[v];
+  if (predsV) {
+    return _.keys(predsV);
+  }
+};
+
+Graph.prototype.successors = function(v) {
+  var sucsV = this._sucs[v];
+  if (sucsV) {
+    return _.keys(sucsV);
+  }
+};
+
+Graph.prototype.neighbors = function(v) {
+  var preds = this.predecessors(v);
+  if (preds) {
+    return _.union(preds, this.successors(v));
+  }
+};
+
+/* === Edge functions ========== */
+
+Graph.prototype.setDefaultEdgeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultEdgeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.edgeCount = function() {
+  return this._edgeCount;
+};
+
+Graph.prototype.edges = function() {
+  return _.values(this._edgeObjs);
+};
+
+Graph.prototype.setPath = function(vs, value) {
+  var self = this,
+      args = arguments;
+  _.reduce(vs, function(v, w) {
+    if (args.length > 1) {
+      self.setEdge(v, w, value);
+    } else {
+      self.setEdge(v, w);
+    }
+    return w;
+  });
+  return this;
+};
+
+/*
+ * setEdge(v, w, [value, [name]])
+ * setEdge({ v, w, [name] }, [value])
+ */
+Graph.prototype.setEdge = function() {
+  var v, w, name, value,
+      valueSpecified = false;
+
+  if (_.isPlainObject(arguments[0])) {
+    v = arguments[0].v;
+    w = arguments[0].w;
+    name = arguments[0].name;
+    if (arguments.length === 2) {
+      value = arguments[1];
+      valueSpecified = true;
+    }
+  } else {
+    v = arguments[0];
+    w = arguments[1];
+    name = arguments[3];
+    if (arguments.length > 2) {
+      value = arguments[2];
+      valueSpecified = true;
+    }
+  }
+
+  v = "" + v;
+  w = "" + w;
+  if (!_.isUndefined(name)) {
+    name = "" + name;
+  }
+
+  var e = edgeArgsToId(this._isDirected, v, w, name);
+  if (_.has(this._edgeLabels, e)) {
+    if (valueSpecified) {
+      this._edgeLabels[e] = value;
+    }
+    return this;
+  }
+
+  if (!_.isUndefined(name) && !this._isMultigraph) {
+    throw new Error("Cannot set a named edge when isMultigraph = false");
+  }
+
+  // It didn't exist, so we need to create it.
+  // First ensure the nodes exist.
+  this.setNode(v);
+  this.setNode(w);
+
+  this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name);
+
+  var edgeObj = edgeArgsToObj(this._isDirected, v, w, name);
+  // Ensure we add undirected edges in a consistent way.
+  v = edgeObj.v;
+  w = edgeObj.w;
+
+  Object.freeze(edgeObj);
+  this._edgeObjs[e] = edgeObj;
+  incrementOrInitEntry(this._preds[w], v);
+  incrementOrInitEntry(this._sucs[v], w);
+  this._in[w][e] = edgeObj;
+  this._out[v][e] = edgeObj;
+  this._edgeCount++;
+  return this;
+};
+
+Graph.prototype.edge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return this._edgeLabels[e];
+};
+
+Graph.prototype.hasEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return _.has(this._edgeLabels, e);
+};
+
+Graph.prototype.removeEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name)),
+      edge = this._edgeObjs[e];
+  if (edge) {
+    v = edge.v;
+    w = edge.w;
+    delete this._edgeLabels[e];
+    delete this._edgeObjs[e];
+    decrementOrRemoveEntry(this._preds[w], v);
+    decrementOrRemoveEntry(this._sucs[v], w);
+    delete this._in[w][e];
+    delete this._out[v][e];
+    this._edgeCount--;
+  }
+  return this;
+};
+
+Graph.prototype.inEdges = function(v, u) {
+  var inV = this._in[v];
+  if (inV) {
+    var edges = _.values(inV);
+    if (!u) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.v === u; });
+  }
+};
+
+Graph.prototype.outEdges = function(v, w) {
+  var outV = this._out[v];
+  if (outV) {
+    var edges = _.values(outV);
+    if (!w) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.w === w; });
+  }
+};
+
+Graph.prototype.nodeEdges = function(v, w) {
+  var inEdges = this.inEdges(v, w);
+  if (inEdges) {
+    return inEdges.concat(this.outEdges(v, w));
+  }
+};
+
+function incrementOrInitEntry(map, k) {
+  if (_.has(map, k)) {
+    map[k]++;
+  } else {
+    map[k] = 1;
+  }
+}
+
+function decrementOrRemoveEntry(map, k) {
+  if (!--map[k]) { delete map[k]; }
+}
+
+function edgeArgsToId(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM +
+             (_.isUndefined(name) ? DEFAULT_EDGE_NAME : name);
+}
+
+function edgeArgsToObj(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  var edgeObj =  { v: v, w: w };
+  if (name) {
+    edgeObj.name = name;
+  }
+  return edgeObj;
+}
+
+function edgeObjToId(isDirected, edgeObj) {
+  return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name);
+}
+
+},{"./lodash":75}],73:[function(require,module,exports){
+// Includes only the "core" of graphlib
+module.exports = {
+  Graph: require("./graph"),
+  version: require("./version")
+};
+
+},{"./graph":72,"./version":76}],74:[function(require,module,exports){
+var _ = require("./lodash"),
+    Graph = require("./graph");
+
+module.exports = {
+  write: write,
+  read: read
+};
+
+function write(g) {
+  var json = {
+    options: {
+      directed: g.isDirected(),
+      multigraph: g.isMultigraph(),
+      compound: g.isCompound()
+    },
+    nodes: writeNodes(g),
+    edges: writeEdges(g)
+  };
+  if (!_.isUndefined(g.graph())) {
+    json.value = _.clone(g.graph());
+  }
+  return json;
+}
+
+function writeNodes(g) {
+  return _.map(g.nodes(), function(v) {
+    var nodeValue = g.node(v),
+        parent = g.parent(v),
+        node = { v: v };
+    if (!_.isUndefined(nodeValue)) {
+      node.value = nodeValue;
+    }
+    if (!_.isUndefined(parent)) {
+      node.parent = parent;
+    }
+    return node;
+  });
+}
+
+function writeEdges(g) {
+  return _.map(g.edges(), function(e) {
+    var edgeValue = g.edge(e),
+        edge = { v: e.v, w: e.w };
+    if (!_.isUndefined(e.name)) {
+      edge.name = e.name;
+    }
+    if (!_.isUndefined(edgeValue)) {
+      edge.value = edgeValue;
+    }
+    return edge;
+  });
+}
+
+function read(json) {
+  var g = new Graph(json.options).setGraph(json.value);
+  _.each(json.nodes, function(entry) {
+    g.setNode(entry.v, entry.value);
+    if (entry.parent) {
+      g.setParent(entry.v, entry.parent);
+    }
+  });
+  _.each(json.edges, function(entry) {
+    g.setEdge({ v: entry.v, w: entry.w, name: entry.name }, entry.value);
+  });
+  return g;
+}
+
+},{"./graph":72,"./lodash":75}],75:[function(require,module,exports){
+module.exports=require(20)
+},{"lodash":101}],76:[function(require,module,exports){
+module.exports = '1.0.1';
+
+},{}],77:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./lib":93,"./lib/alg":84,"./lib/json":94}],78:[function(require,module,exports){
+module.exports=require(58)
+},{"../lodash":95}],79:[function(require,module,exports){
+module.exports=require(59)
+},{"../lodash":95}],80:[function(require,module,exports){
+module.exports=require(60)
+},{"../lodash":95,"./dijkstra":81}],81:[function(require,module,exports){
+module.exports=require(61)
+},{"../data/priority-queue":91,"../lodash":95}],82:[function(require,module,exports){
+module.exports=require(62)
+},{"../lodash":95,"./tarjan":89}],83:[function(require,module,exports){
+module.exports=require(63)
+},{"../lodash":95}],84:[function(require,module,exports){
+arguments[4][64][0].apply(exports,arguments)
+},{"./components":78,"./dijkstra":81,"./dijkstra-all":80,"./find-cycles":82,"./floyd-warshall":83,"./is-acyclic":85,"./postorder":86,"./preorder":87,"./prim":88,"./tarjan":89,"./topsort":90}],85:[function(require,module,exports){
+module.exports=require(65)
+},{"./topsort":90}],86:[function(require,module,exports){
+module.exports=require(66)
+},{"./dfs":79}],87:[function(require,module,exports){
+module.exports=require(67)
+},{"./dfs":79}],88:[function(require,module,exports){
+arguments[4][68][0].apply(exports,arguments)
+},{"../data/priority-queue":91,"../graph":92,"../lodash":95}],89:[function(require,module,exports){
+module.exports=require(69)
+},{"../lodash":95}],90:[function(require,module,exports){
+module.exports=require(70)
+},{"../lodash":95}],91:[function(require,module,exports){
+module.exports=require(71)
+},{"../lodash":95}],92:[function(require,module,exports){
+"use strict";
+
+var _ = require("./lodash");
+
+module.exports = Graph;
+
+var DEFAULT_EDGE_NAME = "\x00",
+    GRAPH_NODE = "\x00",
+    EDGE_KEY_DELIM = "\x01";
+
+// Implementation notes:
+//
+//  * Node id query functions should return string ids for the nodes
+//  * Edge id query functions should return an "edgeObj", edge object, that is
+//    composed of enough information to uniquely identify an edge: {v, w, name}.
+//  * Internally we use an "edgeId", a stringified form of the edgeObj, to
+//    reference edges. This is because we need a performant way to look these
+//    edges up and, object properties, which have string keys, are the closest
+//    we're going to get to a performant hashtable in JavaScript.
+
+function Graph(opts) {
+  this._isDirected = _.has(opts, "directed") ? opts.directed : true;
+  this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false;
+  this._isCompound = _.has(opts, "compound") ? opts.compound : false;
+
+  // Label for the graph itself
+  this._label = undefined;
+
+  // Defaults to be set when creating a new node
+  this._defaultNodeLabelFn = _.constant(undefined);
+
+  // Defaults to be set when creating a new edge
+  this._defaultEdgeLabelFn = _.constant(undefined);
+
+  // v -> label
+  this._nodes = {};
+
+  if (this._isCompound) {
+    // v -> parent
+    this._parent = {};
+
+    // v -> children
+    this._children = {};
+    this._children[GRAPH_NODE] = {};
+  }
+
+  // v -> edgeObj
+  this._in = {};
+
+  // u -> v -> Number
+  this._preds = {};
+
+  // v -> edgeObj
+  this._out = {};
+
+  // v -> w -> Number
+  this._sucs = {};
+
+  // e -> edgeObj
+  this._edgeObjs = {};
+
+  // e -> label
+  this._edgeLabels = {};
+}
+
+/* Number of nodes in the graph. Should only be changed by the implementation. */
+Graph.prototype._nodeCount = 0;
+
+/* Number of edges in the graph. Should only be changed by the implementation. */
+Graph.prototype._edgeCount = 0;
+
+
+/* === Graph functions ========= */
+
+Graph.prototype.isDirected = function() {
+  return this._isDirected;
+};
+
+Graph.prototype.isMultigraph = function() {
+  return this._isMultigraph;
+};
+
+Graph.prototype.isCompound = function() {
+  return this._isCompound;
+};
+
+Graph.prototype.setGraph = function(label) {
+  this._label = label;
+  return this;
+};
+
+Graph.prototype.graph = function() {
+  return this._label;
+};
+
+
+/* === Node functions ========== */
+
+Graph.prototype.setDefaultNodeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultNodeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.nodeCount = function() {
+  return this._nodeCount;
+};
+
+Graph.prototype.nodes = function() {
+  return _.keys(this._nodes);
+};
+
+Graph.prototype.sources = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._in[v]);
+  }, this);
+};
+
+Graph.prototype.sinks = function() {
+  return _.filter(this.nodes(), function(v) {
+    return _.isEmpty(this._out[v]);
+  }, this);
+};
+
+Graph.prototype.setNodes = function(vs, value) {
+  var args = arguments;
+  _.each(vs, function(v) {
+    if (args.length > 1) {
+      this.setNode(v, value);
+    } else {
+      this.setNode(v);
+    }
+  }, this);
+  return this;
+};
+
+Graph.prototype.setNode = function(v, value) {
+  if (_.has(this._nodes, v)) {
+    if (arguments.length > 1) {
+      this._nodes[v] = value;
+    }
+    return this;
+  }
+
+  this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v);
+  if (this._isCompound) {
+    this._parent[v] = GRAPH_NODE;
+    this._children[v] = {};
+    this._children[GRAPH_NODE][v] = true;
+  }
+  this._in[v] = {};
+  this._preds[v] = {};
+  this._out[v] = {};
+  this._sucs[v] = {};
+  ++this._nodeCount;
+  return this;
+};
+
+Graph.prototype.node = function(v) {
+  return this._nodes[v];
+};
+
+Graph.prototype.hasNode = function(v) {
+  return _.has(this._nodes, v);
+};
+
+Graph.prototype.removeNode =  function(v) {
+  var self = this;
+  if (_.has(this._nodes, v)) {
+    var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); };
+    delete this._nodes[v];
+    if (this._isCompound) {
+      this._removeFromParentsChildList(v);
+      delete this._parent[v];
+      _.each(this.children(v), function(child) {
+        this.setParent(child);
+      }, this);
+      delete this._children[v];
+    }
+    _.each(_.keys(this._in[v]), removeEdge);
+    delete this._in[v];
+    delete this._preds[v];
+    _.each(_.keys(this._out[v]), removeEdge);
+    delete this._out[v];
+    delete this._sucs[v];
+    --this._nodeCount;
+  }
+  return this;
+};
+
+Graph.prototype.setParent = function(v, parent) {
+  if (!this._isCompound) {
+    throw new Error("Cannot set parent in a non-compound graph");
+  }
+
+  if (_.isUndefined(parent)) {
+    parent = GRAPH_NODE;
+  } else {
+    for (var ancestor = parent;
+         !_.isUndefined(ancestor);
+         ancestor = this.parent(ancestor)) {
+      if (ancestor === v) {
+        throw new Error("Setting " + parent+ " as parent of " + v +
+                        " would create create a cycle");
+      }
+    }
+
+    this.setNode(parent);
+  }
+
+  this.setNode(v);
+  this._removeFromParentsChildList(v);
+  this._parent[v] = parent;
+  this._children[parent][v] = true;
+  return this;
+};
+
+Graph.prototype._removeFromParentsChildList = function(v) {
+  delete this._children[this._parent[v]][v];
+};
+
+Graph.prototype.parent = function(v) {
+  if (this._isCompound) {
+    var parent = this._parent[v];
+    if (parent !== GRAPH_NODE) {
+      return parent;
+    }
+  }
+};
+
+Graph.prototype.children = function(v) {
+  if (_.isUndefined(v)) {
+    v = GRAPH_NODE;
+  }
+
+  if (this._isCompound) {
+    var children = this._children[v];
+    if (children) {
+      return _.keys(children);
+    }
+  } else if (v === GRAPH_NODE) {
+    return this.nodes();
+  } else if (this.hasNode(v)) {
+    return [];
+  }
+};
+
+Graph.prototype.predecessors = function(v) {
+  var predsV = this._preds[v];
+  if (predsV) {
+    return _.keys(predsV);
+  }
+};
+
+Graph.prototype.successors = function(v) {
+  var sucsV = this._sucs[v];
+  if (sucsV) {
+    return _.keys(sucsV);
+  }
+};
+
+Graph.prototype.neighbors = function(v) {
+  var preds = this.predecessors(v);
+  if (preds) {
+    return _.union(preds, this.successors(v));
+  }
+};
+
+/* === Edge functions ========== */
+
+Graph.prototype.setDefaultEdgeLabel = function(newDefault) {
+  if (!_.isFunction(newDefault)) {
+    newDefault = _.constant(newDefault);
+  }
+  this._defaultEdgeLabelFn = newDefault;
+  return this;
+};
+
+Graph.prototype.edgeCount = function() {
+  return this._edgeCount;
+};
+
+Graph.prototype.edges = function() {
+  return _.values(this._edgeObjs);
+};
+
+Graph.prototype.setPath = function(vs, value) {
+  var self = this,
+      args = arguments;
+  _.reduce(vs, function(v, w) {
+    if (args.length > 1) {
+      self.setEdge(v, w, value);
+    } else {
+      self.setEdge(v, w);
+    }
+    return w;
+  });
+  return this;
+};
+
+/*
+ * setEdge(v, w, [value, [name]])
+ * setEdge({ v, w, [name] }, [value])
+ */
+Graph.prototype.setEdge = function(v, w, value, name) {
+  var valueSpecified = arguments.length > 2;
+
+  v = String(v);
+  w = String(w);
+  if (!_.isUndefined(name)) {
+    name = String(name);
+  }
+
+  if (_.isPlainObject(arguments[0])) {
+    v = arguments[0].v;
+    w = arguments[0].w;
+    name = arguments[0].name;
+    if (arguments.length === 2) {
+      value = arguments[1];
+      valueSpecified = true;
+    }
+  }
+
+  var e = edgeArgsToId(this._isDirected, v, w, name);
+  if (_.has(this._edgeLabels, e)) {
+    if (valueSpecified) {
+      this._edgeLabels[e] = value;
+    }
+    return this;
+  }
+
+  if (!_.isUndefined(name) && !this._isMultigraph) {
+    throw new Error("Cannot set a named edge when isMultigraph = false");
+  }
+
+  // It didn't exist, so we need to create it.
+  // First ensure the nodes exist.
+  this.setNode(v);
+  this.setNode(w);
+
+  this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name);
+
+  var edgeObj = edgeArgsToObj(this._isDirected, v, w, name);
+  // Ensure we add undirected edges in a consistent way.
+  v = edgeObj.v;
+  w = edgeObj.w;
+
+  Object.freeze(edgeObj);
+  this._edgeObjs[e] = edgeObj;
+  incrementOrInitEntry(this._preds[w], v);
+  incrementOrInitEntry(this._sucs[v], w);
+  this._in[w][e] = edgeObj;
+  this._out[v][e] = edgeObj;
+  this._edgeCount++;
+  return this;
+};
+
+Graph.prototype.edge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return this._edgeLabels[e];
+};
+
+Graph.prototype.hasEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name));
+  return _.has(this._edgeLabels, e);
+};
+
+Graph.prototype.removeEdge = function(v, w, name) {
+  var e = (arguments.length === 1
+            ? edgeObjToId(this._isDirected, arguments[0])
+            : edgeArgsToId(this._isDirected, v, w, name)),
+      edge = this._edgeObjs[e];
+  if (edge) {
+    v = edge.v;
+    w = edge.w;
+    delete this._edgeLabels[e];
+    delete this._edgeObjs[e];
+    decrementOrRemoveEntry(this._preds[w], v);
+    decrementOrRemoveEntry(this._sucs[v], w);
+    delete this._in[w][e];
+    delete this._out[v][e];
+    this._edgeCount--;
+  }
+  return this;
+};
+
+Graph.prototype.inEdges = function(v, u) {
+  var inV = this._in[v];
+  if (inV) {
+    var edges = _.values(inV);
+    if (!u) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.v === u; });
+  }
+};
+
+Graph.prototype.outEdges = function(v, w) {
+  var outV = this._out[v];
+  if (outV) {
+    var edges = _.values(outV);
+    if (!w) {
+      return edges;
+    }
+    return _.filter(edges, function(edge) { return edge.w === w; });
+  }
+};
+
+Graph.prototype.nodeEdges = function(v, w) {
+  var inEdges = this.inEdges(v, w);
+  if (inEdges) {
+    return inEdges.concat(this.outEdges(v, w));
+  }
+};
+
+function incrementOrInitEntry(map, k) {
+  if (_.has(map, k)) {
+    map[k]++;
+  } else {
+    map[k] = 1;
+  }
+}
+
+function decrementOrRemoveEntry(map, k) {
+  if (!--map[k]) { delete map[k]; }
+}
+
+function edgeArgsToId(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM +
+             (_.isUndefined(name) ? DEFAULT_EDGE_NAME : name);
+}
+
+function edgeArgsToObj(isDirected, v, w, name) {
+  if (!isDirected && v > w) {
+    var tmp = v;
+    v = w;
+    w = tmp;
+  }
+  var edgeObj =  { v: v, w: w };
+  if (name) {
+    edgeObj.name = name;
+  }
+  return edgeObj;
+}
+
+function edgeObjToId(isDirected, edgeObj) {
+  return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name);
+}
+
+},{"./lodash":95}],93:[function(require,module,exports){
+arguments[4][73][0].apply(exports,arguments)
+},{"./graph":92,"./version":96}],94:[function(require,module,exports){
+arguments[4][74][0].apply(exports,arguments)
+},{"./graph":92,"./lodash":95}],95:[function(require,module,exports){
+module.exports=require(20)
+},{"lodash":101}],96:[function(require,module,exports){
+module.exports = '0.9.1';
+
+},{}],97:[function(require,module,exports){
+
+},{}],98:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -228,7 +5779,7 @@ var substr = 'ab'.substr(-1) === 'b'
 ;
 
 }).call(this,require("1YiZ5S"))
-},{"1YiZ5S":3}],3:[function(require,module,exports){
+},{"1YiZ5S":99}],99:[function(require,module,exports){
 // shim for using process in browser
 
 var process = module.exports = {};
@@ -293,7 +5844,7 @@ process.chdir = function (dir) {
     throw new Error('process.chdir is not supported');
 };
 
-},{}],4:[function(require,module,exports){
+},{}],100:[function(require,module,exports){
 (function (global){
 /*! http://mths.be/he v0.5.0 by @mathias | MIT license */
 ;(function(root) {
@@ -626,14 +6177,6803 @@ process.chdir = function (dir) {
 }(this));
 
 }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],5:[function(require,module,exports){
+},{}],101:[function(require,module,exports){
+(function (global){
+/**
+ * @license
+ * Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/>
+ * Build: `lodash modern -o ./dist/lodash.js`
+ * Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <http://lodash.com/license>
+ */
+;(function() {
+
+  /** Used as a safe reference for `undefined` in pre ES5 environments */
+  var undefined;
+
+  /** Used to pool arrays and objects used internally */
+  var arrayPool = [],
+      objectPool = [];
+
+  /** Used to generate unique IDs */
+  var idCounter = 0;
+
+  /** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
+  var keyPrefix = +new Date + '';
+
+  /** Used as the size when optimizations are enabled for large arrays */
+  var largeArraySize = 75;
+
+  /** Used as the max size of the `arrayPool` and `objectPool` */
+  var maxPoolSize = 40;
+
+  /** Used to detect and test whitespace */
+  var whitespace = (
+    // whitespace
+    ' \t\x0B\f\xA0\ufeff' +
+
+    // line terminators
+    '\n\r\u2028\u2029' +
+
+    // unicode category "Zs" space separators
+    '\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
+  );
+
+  /** Used to match empty string literals in compiled template source */
+  var reEmptyStringLeading = /\b__p \+= '';/g,
+      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+
+  /**
+   * Used to match ES6 template delimiters
+   * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-string-literals
+   */
+  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+
+  /** Used to match regexp flags from their coerced string values */
+  var reFlags = /\w*$/;
+
+  /** Used to detected named functions */
+  var reFuncName = /^\s*function[ \n\r\t]+\w/;
+
+  /** Used to match "interpolate" template delimiters */
+  var reInterpolate = /<%=([\s\S]+?)%>/g;
+
+  /** Used to match leading whitespace and zeros to be removed */
+  var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
+
+  /** Used to ensure capturing order of template delimiters */
+  var reNoMatch = /($^)/;
+
+  /** Used to detect functions containing a `this` reference */
+  var reThis = /\bthis\b/;
+
+  /** Used to match unescaped characters in compiled string literals */
+  var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
+
+  /** Used to assign default `context` object properties */
+  var contextProps = [
+    'Array', 'Boolean', 'Date', 'Function', 'Math', 'Number', 'Object',
+    'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
+    'parseInt', 'setTimeout'
+  ];
+
+  /** Used to make template sourceURLs easier to identify */
+  var templateCounter = 0;
+
+  /** `Object#toString` result shortcuts */
+  var argsClass = '[object Arguments]',
+      arrayClass = '[object Array]',
+      boolClass = '[object Boolean]',
+      dateClass = '[object Date]',
+      funcClass = '[object Function]',
+      numberClass = '[object Number]',
+      objectClass = '[object Object]',
+      regexpClass = '[object RegExp]',
+      stringClass = '[object String]';
+
+  /** Used to identify object classifications that `_.clone` supports */
+  var cloneableClasses = {};
+  cloneableClasses[funcClass] = false;
+  cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
+  cloneableClasses[boolClass] = cloneableClasses[dateClass] =
+  cloneableClasses[numberClass] = cloneableClasses[objectClass] =
+  cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
+
+  /** Used as an internal `_.debounce` options object */
+  var debounceOptions = {
+    'leading': false,
+    'maxWait': 0,
+    'trailing': false
+  };
+
+  /** Used as the property descriptor for `__bindData__` */
+  var descriptor = {
+    'configurable': false,
+    'enumerable': false,
+    'value': null,
+    'writable': false
+  };
+
+  /** Used to determine if values are of the language type Object */
+  var objectTypes = {
+    'boolean': false,
+    'function': true,
+    'object': true,
+    'number': false,
+    'string': false,
+    'undefined': false
+  };
+
+  /** Used to escape characters for inclusion in compiled string literals */
+  var stringEscapes = {
+    '\\': '\\',
+    "'": "'",
+    '\n': 'n',
+    '\r': 'r',
+    '\t': 't',
+    '\u2028': 'u2028',
+    '\u2029': 'u2029'
+  };
+
+  /** Used as a reference to the global object */
+  var root = (objectTypes[typeof window] && window) || this;
+
+  /** Detect free variable `exports` */
+  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+
+  /** Detect free variable `module` */
+  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
+
+  /** Detect the popular CommonJS extension `module.exports` */
+  var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
+
+  /** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
+  var freeGlobal = objectTypes[typeof global] && global;
+  if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
+    root = freeGlobal;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * The base implementation of `_.indexOf` without support for binary searches
+   * or `fromIndex` constraints.
+   *
+   * @private
+   * @param {Array} array The array to search.
+   * @param {*} value The value to search for.
+   * @param {number} [fromIndex=0] The index to search from.
+   * @returns {number} Returns the index of the matched value or `-1`.
+   */
+  function baseIndexOf(array, value, fromIndex) {
+    var index = (fromIndex || 0) - 1,
+        length = array ? array.length : 0;
+
+    while (++index < length) {
+      if (array[index] === value) {
+        return index;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * An implementation of `_.contains` for cache objects that mimics the return
+   * signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
+   *
+   * @private
+   * @param {Object} cache The cache object to inspect.
+   * @param {*} value The value to search for.
+   * @returns {number} Returns `0` if `value` is found, else `-1`.
+   */
+  function cacheIndexOf(cache, value) {
+    var type = typeof value;
+    cache = cache.cache;
+
+    if (type == 'boolean' || value == null) {
+      return cache[value] ? 0 : -1;
+    }
+    if (type != 'number' && type != 'string') {
+      type = 'object';
+    }
+    var key = type == 'number' ? value : keyPrefix + value;
+    cache = (cache = cache[type]) && cache[key];
+
+    return type == 'object'
+      ? (cache && baseIndexOf(cache, value) > -1 ? 0 : -1)
+      : (cache ? 0 : -1);
+  }
+
+  /**
+   * Adds a given value to the corresponding cache object.
+   *
+   * @private
+   * @param {*} value The value to add to the cache.
+   */
+  function cachePush(value) {
+    var cache = this.cache,
+        type = typeof value;
+
+    if (type == 'boolean' || value == null) {
+      cache[value] = true;
+    } else {
+      if (type != 'number' && type != 'string') {
+        type = 'object';
+      }
+      var key = type == 'number' ? value : keyPrefix + value,
+          typeCache = cache[type] || (cache[type] = {});
+
+      if (type == 'object') {
+        (typeCache[key] || (typeCache[key] = [])).push(value);
+      } else {
+        typeCache[key] = true;
+      }
+    }
+  }
+
+  /**
+   * Used by `_.max` and `_.min` as the default callback when a given
+   * collection is a string value.
+   *
+   * @private
+   * @param {string} value The character to inspect.
+   * @returns {number} Returns the code unit of given character.
+   */
+  function charAtCallback(value) {
+    return value.charCodeAt(0);
+  }
+
+  /**
+   * Used by `sortBy` to compare transformed `collection` elements, stable sorting
+   * them in ascending order.
+   *
+   * @private
+   * @param {Object} a The object to compare to `b`.
+   * @param {Object} b The object to compare to `a`.
+   * @returns {number} Returns the sort order indicator of `1` or `-1`.
+   */
+  function compareAscending(a, b) {
+    var ac = a.criteria,
+        bc = b.criteria,
+        index = -1,
+        length = ac.length;
+
+    while (++index < length) {
+      var value = ac[index],
+          other = bc[index];
+
+      if (value !== other) {
+        if (value > other || typeof value == 'undefined') {
+          return 1;
+        }
+        if (value < other || typeof other == 'undefined') {
+          return -1;
+        }
+      }
+    }
+    // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+    // that causes it, under certain circumstances, to return the same value for
+    // `a` and `b`. See https://github.com/jashkenas/underscore/pull/1247
+    //
+    // This also ensures a stable sort in V8 and other engines.
+    // See http://code.google.com/p/v8/issues/detail?id=90
+    return a.index - b.index;
+  }
+
+  /**
+   * Creates a cache object to optimize linear searches of large arrays.
+   *
+   * @private
+   * @param {Array} [array=[]] The array to search.
+   * @returns {null|Object} Returns the cache object or `null` if caching should not be used.
+   */
+  function createCache(array) {
+    var index = -1,
+        length = array.length,
+        first = array[0],
+        mid = array[(length / 2) | 0],
+        last = array[length - 1];
+
+    if (first && typeof first == 'object' &&
+        mid && typeof mid == 'object' && last && typeof last == 'object') {
+      return false;
+    }
+    var cache = getObject();
+    cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
+
+    var result = getObject();
+    result.array = array;
+    result.cache = cache;
+    result.push = cachePush;
+
+    while (++index < length) {
+      result.push(array[index]);
+    }
+    return result;
+  }
+
+  /**
+   * Used by `template` to escape characters for inclusion in compiled
+   * string literals.
+   *
+   * @private
+   * @param {string} match The matched character to escape.
+   * @returns {string} Returns the escaped character.
+   */
+  function escapeStringChar(match) {
+    return '\\' + stringEscapes[match];
+  }
+
+  /**
+   * Gets an array from the array pool or creates a new one if the pool is empty.
+   *
+   * @private
+   * @returns {Array} The array from the pool.
+   */
+  function getArray() {
+    return arrayPool.pop() || [];
+  }
+
+  /**
+   * Gets an object from the object pool or creates a new one if the pool is empty.
+   *
+   * @private
+   * @returns {Object} The object from the pool.
+   */
+  function getObject() {
+    return objectPool.pop() || {
+      'array': null,
+      'cache': null,
+      'criteria': null,
+      'false': false,
+      'index': 0,
+      'null': false,
+      'number': null,
+      'object': null,
+      'push': null,
+      'string': null,
+      'true': false,
+      'undefined': false,
+      'value': null
+    };
+  }
+
+  /**
+   * Releases the given array back to the array pool.
+   *
+   * @private
+   * @param {Array} [array] The array to release.
+   */
+  function releaseArray(array) {
+    array.length = 0;
+    if (arrayPool.length < maxPoolSize) {
+      arrayPool.push(array);
+    }
+  }
+
+  /**
+   * Releases the given object back to the object pool.
+   *
+   * @private
+   * @param {Object} [object] The object to release.
+   */
+  function releaseObject(object) {
+    var cache = object.cache;
+    if (cache) {
+      releaseObject(cache);
+    }
+    object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
+    if (objectPool.length < maxPoolSize) {
+      objectPool.push(object);
+    }
+  }
+
+  /**
+   * Slices the `collection` from the `start` index up to, but not including,
+   * the `end` index.
+   *
+   * Note: This function is used instead of `Array#slice` to support node lists
+   * in IE < 9 and to ensure dense arrays are returned.
+   *
+   * @private
+   * @param {Array|Object|string} collection The collection to slice.
+   * @param {number} start The start index.
+   * @param {number} end The end index.
+   * @returns {Array} Returns the new array.
+   */
+  function slice(array, start, end) {
+    start || (start = 0);
+    if (typeof end == 'undefined') {
+      end = array ? array.length : 0;
+    }
+    var index = -1,
+        length = end - start || 0,
+        result = Array(length < 0 ? 0 : length);
+
+    while (++index < length) {
+      result[index] = array[start + index];
+    }
+    return result;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * Create a new `lodash` function using the given context object.
+   *
+   * @static
+   * @memberOf _
+   * @category Utilities
+   * @param {Object} [context=root] The context object.
+   * @returns {Function} Returns the `lodash` function.
+   */
+  function runInContext(context) {
+    // Avoid issues with some ES3 environments that attempt to use values, named
+    // after built-in constructors like `Object`, for the creation of literals.
+    // ES5 clears this up by stating that literals must use built-in constructors.
+    // See http://es5.github.io/#x11.1.5.
+    context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
+
+    /** Native constructor references */
+    var Array = context.Array,
+        Boolean = context.Boolean,
+        Date = context.Date,
+        Function = context.Function,
+        Math = context.Math,
+        Number = context.Number,
+        Object = context.Object,
+        RegExp = context.RegExp,
+        String = context.String,
+        TypeError = context.TypeError;
+
+    /**
+     * Used for `Array` method references.
+     *
+     * Normally `Array.prototype` would suffice, however, using an array literal
+     * avoids issues in Narwhal.
+     */
+    var arrayRef = [];
+
+    /** Used for native method references */
+    var objectProto = Object.prototype;
+
+    /** Used to restore the original `_` reference in `noConflict` */
+    var oldDash = context._;
+
+    /** Used to resolve the internal [[Class]] of values */
+    var toString = objectProto.toString;
+
+    /** Used to detect if a method is native */
+    var reNative = RegExp('^' +
+      String(toString)
+        .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+        .replace(/toString| for [^\]]+/g, '.*?') + '$'
+    );
+
+    /** Native method shortcuts */
+    var ceil = Math.ceil,
+        clearTimeout = context.clearTimeout,
+        floor = Math.floor,
+        fnToString = Function.prototype.toString,
+        getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
+        hasOwnProperty = objectProto.hasOwnProperty,
+        push = arrayRef.push,
+        setTimeout = context.setTimeout,
+        splice = arrayRef.splice,
+        unshift = arrayRef.unshift;
+
+    /** Used to set meta data on functions */
+    var defineProperty = (function() {
+      // IE 8 only accepts DOM elements
+      try {
+        var o = {},
+            func = isNative(func = Object.defineProperty) && func,
+            result = func(o, o, o) && func;
+      } catch(e) { }
+      return result;
+    }());
+
+    /* Native method shortcuts for methods with the same name as other `lodash` methods */
+    var nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
+        nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
+        nativeIsFinite = context.isFinite,
+        nativeIsNaN = context.isNaN,
+        nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
+        nativeMax = Math.max,
+        nativeMin = Math.min,
+        nativeParseInt = context.parseInt,
+        nativeRandom = Math.random;
+
+    /** Used to lookup a built-in constructor by [[Class]] */
+    var ctorByClass = {};
+    ctorByClass[arrayClass] = Array;
+    ctorByClass[boolClass] = Boolean;
+    ctorByClass[dateClass] = Date;
+    ctorByClass[funcClass] = Function;
+    ctorByClass[objectClass] = Object;
+    ctorByClass[numberClass] = Number;
+    ctorByClass[regexpClass] = RegExp;
+    ctorByClass[stringClass] = String;
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a `lodash` object which wraps the given value to enable intuitive
+     * method chaining.
+     *
+     * In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
+     * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
+     * and `unshift`
+     *
+     * Chaining is supported in custom builds as long as the `value` method is
+     * implicitly or explicitly included in the build.
+     *
+     * The chainable wrapper functions are:
+     * `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
+     * `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
+     * `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
+     * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
+     * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
+     * `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
+     * `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
+     * `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
+     * `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
+     * `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
+     * and `zip`
+     *
+     * The non-chainable wrapper functions are:
+     * `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
+     * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
+     * `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
+     * `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
+     * `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
+     * `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
+     * `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
+     * `template`, `unescape`, `uniqueId`, and `value`
+     *
+     * The wrapper functions `first` and `last` return wrapped values when `n` is
+     * provided, otherwise they return unwrapped values.
+     *
+     * Explicit chaining can be enabled by using the `_.chain` method.
+     *
+     * @name _
+     * @constructor
+     * @category Chaining
+     * @param {*} value The value to wrap in a `lodash` instance.
+     * @returns {Object} Returns a `lodash` instance.
+     * @example
+     *
+     * var wrapped = _([1, 2, 3]);
+     *
+     * // returns an unwrapped value
+     * wrapped.reduce(function(sum, num) {
+     *   return sum + num;
+     * });
+     * // => 6
+     *
+     * // returns a wrapped value
+     * var squares = wrapped.map(function(num) {
+     *   return num * num;
+     * });
+     *
+     * _.isArray(squares);
+     * // => false
+     *
+     * _.isArray(squares.value());
+     * // => true
+     */
+    function lodash(value) {
+      // don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
+      return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
+       ? value
+       : new lodashWrapper(value);
+    }
+
+    /**
+     * A fast path for creating `lodash` wrapper objects.
+     *
+     * @private
+     * @param {*} value The value to wrap in a `lodash` instance.
+     * @param {boolean} chainAll A flag to enable chaining for all methods
+     * @returns {Object} Returns a `lodash` instance.
+     */
+    function lodashWrapper(value, chainAll) {
+      this.__chain__ = !!chainAll;
+      this.__wrapped__ = value;
+    }
+    // ensure `new lodashWrapper` is an instance of `lodash`
+    lodashWrapper.prototype = lodash.prototype;
+
+    /**
+     * An object used to flag environments features.
+     *
+     * @static
+     * @memberOf _
+     * @type Object
+     */
+    var support = lodash.support = {};
+
+    /**
+     * Detect if functions can be decompiled by `Function#toString`
+     * (all but PS3 and older Opera mobile browsers & avoided in Windows 8 apps).
+     *
+     * @memberOf _.support
+     * @type boolean
+     */
+    support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
+
+    /**
+     * Detect if `Function#name` is supported (all but IE).
+     *
+     * @memberOf _.support
+     * @type boolean
+     */
+    support.funcNames = typeof Function.name == 'string';
+
+    /**
+     * By default, the template delimiters used by Lo-Dash are similar to those in
+     * embedded Ruby (ERB). Change the following template settings to use alternative
+     * delimiters.
+     *
+     * @static
+     * @memberOf _
+     * @type Object
+     */
+    lodash.templateSettings = {
+
+      /**
+       * Used to detect `data` property values to be HTML-escaped.
+       *
+       * @memberOf _.templateSettings
+       * @type RegExp
+       */
+      'escape': /<%-([\s\S]+?)%>/g,
+
+      /**
+       * Used to detect code to be evaluated.
+       *
+       * @memberOf _.templateSettings
+       * @type RegExp
+       */
+      'evaluate': /<%([\s\S]+?)%>/g,
+
+      /**
+       * Used to detect `data` property values to inject.
+       *
+       * @memberOf _.templateSettings
+       * @type RegExp
+       */
+      'interpolate': reInterpolate,
+
+      /**
+       * Used to reference the data object in the template text.
+       *
+       * @memberOf _.templateSettings
+       * @type string
+       */
+      'variable': '',
+
+      /**
+       * Used to import variables into the compiled template.
+       *
+       * @memberOf _.templateSettings
+       * @type Object
+       */
+      'imports': {
+
+        /**
+         * A reference to the `lodash` function.
+         *
+         * @memberOf _.templateSettings.imports
+         * @type Function
+         */
+        '_': lodash
+      }
+    };
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * The base implementation of `_.bind` that creates the bound function and
+     * sets its meta data.
+     *
+     * @private
+     * @param {Array} bindData The bind data array.
+     * @returns {Function} Returns the new bound function.
+     */
+    function baseBind(bindData) {
+      var func = bindData[0],
+          partialArgs = bindData[2],
+          thisArg = bindData[4];
+
+      function bound() {
+        // `Function#bind` spec
+        // http://es5.github.io/#x15.3.4.5
+        if (partialArgs) {
+          // avoid `arguments` object deoptimizations by using `slice` instead
+          // of `Array.prototype.slice.call` and not assigning `arguments` to a
+          // variable as a ternary expression
+          var args = slice(partialArgs);
+          push.apply(args, arguments);
+        }
+        // mimic the constructor's `return` behavior
+        // http://es5.github.io/#x13.2.2
+        if (this instanceof bound) {
+          // ensure `new bound` is an instance of `func`
+          var thisBinding = baseCreate(func.prototype),
+              result = func.apply(thisBinding, args || arguments);
+          return isObject(result) ? result : thisBinding;
+        }
+        return func.apply(thisArg, args || arguments);
+      }
+      setBindData(bound, bindData);
+      return bound;
+    }
+
+    /**
+     * The base implementation of `_.clone` without argument juggling or support
+     * for `thisArg` binding.
+     *
+     * @private
+     * @param {*} value The value to clone.
+     * @param {boolean} [isDeep=false] Specify a deep clone.
+     * @param {Function} [callback] The function to customize cloning values.
+     * @param {Array} [stackA=[]] Tracks traversed source objects.
+     * @param {Array} [stackB=[]] Associates clones with source counterparts.
+     * @returns {*} Returns the cloned value.
+     */
+    function baseClone(value, isDeep, callback, stackA, stackB) {
+      if (callback) {
+        var result = callback(value);
+        if (typeof result != 'undefined') {
+          return result;
+        }
+      }
+      // inspect [[Class]]
+      var isObj = isObject(value);
+      if (isObj) {
+        var className = toString.call(value);
+        if (!cloneableClasses[className]) {
+          return value;
+        }
+        var ctor = ctorByClass[className];
+        switch (className) {
+          case boolClass:
+          case dateClass:
+            return new ctor(+value);
+
+          case numberClass:
+          case stringClass:
+            return new ctor(value);
+
+          case regexpClass:
+            result = ctor(value.source, reFlags.exec(value));
+            result.lastIndex = value.lastIndex;
+            return result;
+        }
+      } else {
+        return value;
+      }
+      var isArr = isArray(value);
+      if (isDeep) {
+        // check for circular references and return corresponding clone
+        var initedStack = !stackA;
+        stackA || (stackA = getArray());
+        stackB || (stackB = getArray());
+
+        var length = stackA.length;
+        while (length--) {
+          if (stackA[length] == value) {
+            return stackB[length];
+          }
+        }
+        result = isArr ? ctor(value.length) : {};
+      }
+      else {
+        result = isArr ? slice(value) : assign({}, value);
+      }
+      // add array properties assigned by `RegExp#exec`
+      if (isArr) {
+        if (hasOwnProperty.call(value, 'index')) {
+          result.index = value.index;
+        }
+        if (hasOwnProperty.call(value, 'input')) {
+          result.input = value.input;
+        }
+      }
+      // exit for shallow clone
+      if (!isDeep) {
+        return result;
+      }
+      // add the source value to the stack of traversed objects
+      // and associate it with its clone
+      stackA.push(value);
+      stackB.push(result);
+
+      // recursively populate clone (susceptible to call stack limits)
+      (isArr ? forEach : forOwn)(value, function(objValue, key) {
+        result[key] = baseClone(objValue, isDeep, callback, stackA, stackB);
+      });
+
+      if (initedStack) {
+        releaseArray(stackA);
+        releaseArray(stackB);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.create` without support for assigning
+     * properties to the created object.
+     *
+     * @private
+     * @param {Object} prototype The object to inherit from.
+     * @returns {Object} Returns the new object.
+     */
+    function baseCreate(prototype, properties) {
+      return isObject(prototype) ? nativeCreate(prototype) : {};
+    }
+    // fallback for browsers without `Object.create`
+    if (!nativeCreate) {
+      baseCreate = (function() {
+        function Object() {}
+        return function(prototype) {
+          if (isObject(prototype)) {
+            Object.prototype = prototype;
+            var result = new Object;
+            Object.prototype = null;
+          }
+          return result || context.Object();
+        };
+      }());
+    }
+
+    /**
+     * The base implementation of `_.createCallback` without support for creating
+     * "_.pluck" or "_.where" style callbacks.
+     *
+     * @private
+     * @param {*} [func=identity] The value to convert to a callback.
+     * @param {*} [thisArg] The `this` binding of the created callback.
+     * @param {number} [argCount] The number of arguments the callback accepts.
+     * @returns {Function} Returns a callback function.
+     */
+    function baseCreateCallback(func, thisArg, argCount) {
+      if (typeof func != 'function') {
+        return identity;
+      }
+      // exit early for no `thisArg` or already bound by `Function#bind`
+      if (typeof thisArg == 'undefined' || !('prototype' in func)) {
+        return func;
+      }
+      var bindData = func.__bindData__;
+      if (typeof bindData == 'undefined') {
+        if (support.funcNames) {
+          bindData = !func.name;
+        }
+        bindData = bindData || !support.funcDecomp;
+        if (!bindData) {
+          var source = fnToString.call(func);
+          if (!support.funcNames) {
+            bindData = !reFuncName.test(source);
+          }
+          if (!bindData) {
+            // checks if `func` references the `this` keyword and stores the result
+            bindData = reThis.test(source);
+            setBindData(func, bindData);
+          }
+        }
+      }
+      // exit early if there are no `this` references or `func` is bound
+      if (bindData === false || (bindData !== true && bindData[1] & 1)) {
+        return func;
+      }
+      switch (argCount) {
+        case 1: return function(value) {
+          return func.call(thisArg, value);
+        };
+        case 2: return function(a, b) {
+          return func.call(thisArg, a, b);
+        };
+        case 3: return function(value, index, collection) {
+          return func.call(thisArg, value, index, collection);
+        };
+        case 4: return function(accumulator, value, index, collection) {
+          return func.call(thisArg, accumulator, value, index, collection);
+        };
+      }
+      return bind(func, thisArg);
+    }
+
+    /**
+     * The base implementation of `createWrapper` that creates the wrapper and
+     * sets its meta data.
+     *
+     * @private
+     * @param {Array} bindData The bind data array.
+     * @returns {Function} Returns the new function.
+     */
+    function baseCreateWrapper(bindData) {
+      var func = bindData[0],
+          bitmask = bindData[1],
+          partialArgs = bindData[2],
+          partialRightArgs = bindData[3],
+          thisArg = bindData[4],
+          arity = bindData[5];
+
+      var isBind = bitmask & 1,
+          isBindKey = bitmask & 2,
+          isCurry = bitmask & 4,
+          isCurryBound = bitmask & 8,
+          key = func;
+
+      function bound() {
+        var thisBinding = isBind ? thisArg : this;
+        if (partialArgs) {
+          var args = slice(partialArgs);
+          push.apply(args, arguments);
+        }
+        if (partialRightArgs || isCurry) {
+          args || (args = slice(arguments));
+          if (partialRightArgs) {
+            push.apply(args, partialRightArgs);
+          }
+          if (isCurry && args.length < arity) {
+            bitmask |= 16 & ~32;
+            return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
+          }
+        }
+        args || (args = arguments);
+        if (isBindKey) {
+          func = thisBinding[key];
+        }
+        if (this instanceof bound) {
+          thisBinding = baseCreate(func.prototype);
+          var result = func.apply(thisBinding, args);
+          return isObject(result) ? result : thisBinding;
+        }
+        return func.apply(thisBinding, args);
+      }
+      setBindData(bound, bindData);
+      return bound;
+    }
+
+    /**
+     * The base implementation of `_.difference` that accepts a single array
+     * of values to exclude.
+     *
+     * @private
+     * @param {Array} array The array to process.
+     * @param {Array} [values] The array of values to exclude.
+     * @returns {Array} Returns a new array of filtered values.
+     */
+    function baseDifference(array, values) {
+      var index = -1,
+          indexOf = getIndexOf(),
+          length = array ? array.length : 0,
+          isLarge = length >= largeArraySize && indexOf === baseIndexOf,
+          result = [];
+
+      if (isLarge) {
+        var cache = createCache(values);
+        if (cache) {
+          indexOf = cacheIndexOf;
+          values = cache;
+        } else {
+          isLarge = false;
+        }
+      }
+      while (++index < length) {
+        var value = array[index];
+        if (indexOf(values, value) < 0) {
+          result.push(value);
+        }
+      }
+      if (isLarge) {
+        releaseObject(values);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.flatten` without support for callback
+     * shorthands or `thisArg` binding.
+     *
+     * @private
+     * @param {Array} array The array to flatten.
+     * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+     * @param {boolean} [isStrict=false] A flag to restrict flattening to arrays and `arguments` objects.
+     * @param {number} [fromIndex=0] The index to start from.
+     * @returns {Array} Returns a new flattened array.
+     */
+    function baseFlatten(array, isShallow, isStrict, fromIndex) {
+      var index = (fromIndex || 0) - 1,
+          length = array ? array.length : 0,
+          result = [];
+
+      while (++index < length) {
+        var value = array[index];
+
+        if (value && typeof value == 'object' && typeof value.length == 'number'
+            && (isArray(value) || isArguments(value))) {
+          // recursively flatten arrays (susceptible to call stack limits)
+          if (!isShallow) {
+            value = baseFlatten(value, isShallow, isStrict);
+          }
+          var valIndex = -1,
+              valLength = value.length,
+              resIndex = result.length;
+
+          result.length += valLength;
+          while (++valIndex < valLength) {
+            result[resIndex++] = value[valIndex];
+          }
+        } else if (!isStrict) {
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.isEqual`, without support for `thisArg` binding,
+     * that allows partial "_.where" style comparisons.
+     *
+     * @private
+     * @param {*} a The value to compare.
+     * @param {*} b The other value to compare.
+     * @param {Function} [callback] The function to customize comparing values.
+     * @param {Function} [isWhere=false] A flag to indicate performing partial comparisons.
+     * @param {Array} [stackA=[]] Tracks traversed `a` objects.
+     * @param {Array} [stackB=[]] Tracks traversed `b` objects.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     */
+    function baseIsEqual(a, b, callback, isWhere, stackA, stackB) {
+      // used to indicate that when comparing objects, `a` has at least the properties of `b`
+      if (callback) {
+        var result = callback(a, b);
+        if (typeof result != 'undefined') {
+          return !!result;
+        }
+      }
+      // exit early for identical values
+      if (a === b) {
+        // treat `+0` vs. `-0` as not equal
+        return a !== 0 || (1 / a == 1 / b);
+      }
+      var type = typeof a,
+          otherType = typeof b;
+
+      // exit early for unlike primitive values
+      if (a === a &&
+          !(a && objectTypes[type]) &&
+          !(b && objectTypes[otherType])) {
+        return false;
+      }
+      // exit early for `null` and `undefined` avoiding ES3's Function#call behavior
+      // http://es5.github.io/#x15.3.4.4
+      if (a == null || b == null) {
+        return a === b;
+      }
+      // compare [[Class]] names
+      var className = toString.call(a),
+          otherClass = toString.call(b);
+
+      if (className == argsClass) {
+        className = objectClass;
+      }
+      if (otherClass == argsClass) {
+        otherClass = objectClass;
+      }
+      if (className != otherClass) {
+        return false;
+      }
+      switch (className) {
+        case boolClass:
+        case dateClass:
+          // coerce dates and booleans to numbers, dates to milliseconds and booleans
+          // to `1` or `0` treating invalid dates coerced to `NaN` as not equal
+          return +a == +b;
+
+        case numberClass:
+          // treat `NaN` vs. `NaN` as equal
+          return (a != +a)
+            ? b != +b
+            // but treat `+0` vs. `-0` as not equal
+            : (a == 0 ? (1 / a == 1 / b) : a == +b);
+
+        case regexpClass:
+        case stringClass:
+          // coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
+          // treat string primitives and their corresponding object instances as equal
+          return a == String(b);
+      }
+      var isArr = className == arrayClass;
+      if (!isArr) {
+        // unwrap any `lodash` wrapped values
+        var aWrapped = hasOwnProperty.call(a, '__wrapped__'),
+            bWrapped = hasOwnProperty.call(b, '__wrapped__');
+
+        if (aWrapped || bWrapped) {
+          return baseIsEqual(aWrapped ? a.__wrapped__ : a, bWrapped ? b.__wrapped__ : b, callback, isWhere, stackA, stackB);
+        }
+        // exit for functions and DOM nodes
+        if (className != objectClass) {
+          return false;
+        }
+        // in older versions of Opera, `arguments` objects have `Array` constructors
+        var ctorA = a.constructor,
+            ctorB = b.constructor;
+
+        // non `Object` object instances with different constructors are not equal
+        if (ctorA != ctorB &&
+              !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
+              ('constructor' in a && 'constructor' in b)
+            ) {
+          return false;
+        }
+      }
+      // assume cyclic structures are equal
+      // the algorithm for detecting cyclic structures is adapted from ES 5.1
+      // section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
+      var initedStack = !stackA;
+      stackA || (stackA = getArray());
+      stackB || (stackB = getArray());
+
+      var length = stackA.length;
+      while (length--) {
+        if (stackA[length] == a) {
+          return stackB[length] == b;
+        }
+      }
+      var size = 0;
+      result = true;
+
+      // add `a` and `b` to the stack of traversed objects
+      stackA.push(a);
+      stackB.push(b);
+
+      // recursively compare objects and arrays (susceptible to call stack limits)
+      if (isArr) {
+        // compare lengths to determine if a deep comparison is necessary
+        length = a.length;
+        size = b.length;
+        result = size == length;
+
+        if (result || isWhere) {
+          // deep compare the contents, ignoring non-numeric properties
+          while (size--) {
+            var index = length,
+                value = b[size];
+
+            if (isWhere) {
+              while (index--) {
+                if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+                  break;
+                }
+              }
+            } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+              break;
+            }
+          }
+        }
+      }
+      else {
+        // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+        // which, in this case, is more costly
+        forIn(b, function(value, key, b) {
+          if (hasOwnProperty.call(b, key)) {
+            // count the number of properties.
+            size++;
+            // deep compare each property value.
+            return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
+          }
+        });
+
+        if (result && !isWhere) {
+          // ensure both objects have the same number of properties
+          forIn(a, function(value, key, a) {
+            if (hasOwnProperty.call(a, key)) {
+              // `size` will be `-1` if `a` has more properties than `b`
+              return (result = --size > -1);
+            }
+          });
+        }
+      }
+      stackA.pop();
+      stackB.pop();
+
+      if (initedStack) {
+        releaseArray(stackA);
+        releaseArray(stackB);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.merge` without argument juggling or support
+     * for `thisArg` binding.
+     *
+     * @private
+     * @param {Object} object The destination object.
+     * @param {Object} source The source object.
+     * @param {Function} [callback] The function to customize merging properties.
+     * @param {Array} [stackA=[]] Tracks traversed source objects.
+     * @param {Array} [stackB=[]] Associates values with source counterparts.
+     */
+    function baseMerge(object, source, callback, stackA, stackB) {
+      (isArray(source) ? forEach : forOwn)(source, function(source, key) {
+        var found,
+            isArr,
+            result = source,
+            value = object[key];
+
+        if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
+          // avoid merging previously merged cyclic sources
+          var stackLength = stackA.length;
+          while (stackLength--) {
+            if ((found = stackA[stackLength] == source)) {
+              value = stackB[stackLength];
+              break;
+            }
+          }
+          if (!found) {
+            var isShallow;
+            if (callback) {
+              result = callback(value, source);
+              if ((isShallow = typeof result != 'undefined')) {
+                value = result;
+              }
+            }
+            if (!isShallow) {
+              value = isArr
+                ? (isArray(value) ? value : [])
+                : (isPlainObject(value) ? value : {});
+            }
+            // add `source` and associated `value` to the stack of traversed objects
+            stackA.push(source);
+            stackB.push(value);
+
+            // recursively merge objects and arrays (susceptible to call stack limits)
+            if (!isShallow) {
+              baseMerge(value, source, callback, stackA, stackB);
+            }
+          }
+        }
+        else {
+          if (callback) {
+            result = callback(value, source);
+            if (typeof result == 'undefined') {
+              result = source;
+            }
+          }
+          if (typeof result != 'undefined') {
+            value = result;
+          }
+        }
+        object[key] = value;
+      });
+    }
+
+    /**
+     * The base implementation of `_.random` without argument juggling or support
+     * for returning floating-point numbers.
+     *
+     * @private
+     * @param {number} min The minimum possible value.
+     * @param {number} max The maximum possible value.
+     * @returns {number} Returns a random number.
+     */
+    function baseRandom(min, max) {
+      return min + floor(nativeRandom() * (max - min + 1));
+    }
+
+    /**
+     * The base implementation of `_.uniq` without support for callback shorthands
+     * or `thisArg` binding.
+     *
+     * @private
+     * @param {Array} array The array to process.
+     * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+     * @param {Function} [callback] The function called per iteration.
+     * @returns {Array} Returns a duplicate-value-free array.
+     */
+    function baseUniq(array, isSorted, callback) {
+      var index = -1,
+          indexOf = getIndexOf(),
+          length = array ? array.length : 0,
+          result = [];
+
+      var isLarge = !isSorted && length >= largeArraySize && indexOf === baseIndexOf,
+          seen = (callback || isLarge) ? getArray() : result;
+
+      if (isLarge) {
+        var cache = createCache(seen);
+        indexOf = cacheIndexOf;
+        seen = cache;
+      }
+      while (++index < length) {
+        var value = array[index],
+            computed = callback ? callback(value, index, array) : value;
+
+        if (isSorted
+              ? !index || seen[seen.length - 1] !== computed
+              : indexOf(seen, computed) < 0
+            ) {
+          if (callback || isLarge) {
+            seen.push(computed);
+          }
+          result.push(value);
+        }
+      }
+      if (isLarge) {
+        releaseArray(seen.array);
+        releaseObject(seen);
+      } else if (callback) {
+        releaseArray(seen);
+      }
+      return result;
+    }
+
+    /**
+     * Creates a function that aggregates a collection, creating an object composed
+     * of keys generated from the results of running each element of the collection
+     * through a callback. The given `setter` function sets the keys and values
+     * of the composed object.
+     *
+     * @private
+     * @param {Function} setter The setter function.
+     * @returns {Function} Returns the new aggregator function.
+     */
+    function createAggregator(setter) {
+      return function(collection, callback, thisArg) {
+        var result = {};
+        callback = lodash.createCallback(callback, thisArg, 3);
+
+        var index = -1,
+            length = collection ? collection.length : 0;
+
+        if (typeof length == 'number') {
+          while (++index < length) {
+            var value = collection[index];
+            setter(result, value, callback(value, index, collection), collection);
+          }
+        } else {
+          forOwn(collection, function(value, key, collection) {
+            setter(result, value, callback(value, key, collection), collection);
+          });
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Creates a function that, when called, either curries or invokes `func`
+     * with an optional `this` binding and partially applied arguments.
+     *
+     * @private
+     * @param {Function|string} func The function or method name to reference.
+     * @param {number} bitmask The bitmask of method flags to compose.
+     *  The bitmask may be composed of the following flags:
+     *  1 - `_.bind`
+     *  2 - `_.bindKey`
+     *  4 - `_.curry`
+     *  8 - `_.curry` (bound)
+     *  16 - `_.partial`
+     *  32 - `_.partialRight`
+     * @param {Array} [partialArgs] An array of arguments to prepend to those
+     *  provided to the new function.
+     * @param {Array} [partialRightArgs] An array of arguments to append to those
+     *  provided to the new function.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {number} [arity] The arity of `func`.
+     * @returns {Function} Returns the new function.
+     */
+    function createWrapper(func, bitmask, partialArgs, partialRightArgs, thisArg, arity) {
+      var isBind = bitmask & 1,
+          isBindKey = bitmask & 2,
+          isCurry = bitmask & 4,
+          isCurryBound = bitmask & 8,
+          isPartial = bitmask & 16,
+          isPartialRight = bitmask & 32;
+
+      if (!isBindKey && !isFunction(func)) {
+        throw new TypeError;
+      }
+      if (isPartial && !partialArgs.length) {
+        bitmask &= ~16;
+        isPartial = partialArgs = false;
+      }
+      if (isPartialRight && !partialRightArgs.length) {
+        bitmask &= ~32;
+        isPartialRight = partialRightArgs = false;
+      }
+      var bindData = func && func.__bindData__;
+      if (bindData && bindData !== true) {
+        // clone `bindData`
+        bindData = slice(bindData);
+        if (bindData[2]) {
+          bindData[2] = slice(bindData[2]);
+        }
+        if (bindData[3]) {
+          bindData[3] = slice(bindData[3]);
+        }
+        // set `thisBinding` is not previously bound
+        if (isBind && !(bindData[1] & 1)) {
+          bindData[4] = thisArg;
+        }
+        // set if previously bound but not currently (subsequent curried functions)
+        if (!isBind && bindData[1] & 1) {
+          bitmask |= 8;
+        }
+        // set curried arity if not yet set
+        if (isCurry && !(bindData[1] & 4)) {
+          bindData[5] = arity;
+        }
+        // append partial left arguments
+        if (isPartial) {
+          push.apply(bindData[2] || (bindData[2] = []), partialArgs);
+        }
+        // append partial right arguments
+        if (isPartialRight) {
+          unshift.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
+        }
+        // merge flags
+        bindData[1] |= bitmask;
+        return createWrapper.apply(null, bindData);
+      }
+      // fast path for `_.bind`
+      var creater = (bitmask == 1 || bitmask === 17) ? baseBind : baseCreateWrapper;
+      return creater([func, bitmask, partialArgs, partialRightArgs, thisArg, arity]);
+    }
+
+    /**
+     * Used by `escape` to convert characters to HTML entities.
+     *
+     * @private
+     * @param {string} match The matched character to escape.
+     * @returns {string} Returns the escaped character.
+     */
+    function escapeHtmlChar(match) {
+      return htmlEscapes[match];
+    }
+
+    /**
+     * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
+     * customized, this method returns the custom method, otherwise it returns
+     * the `baseIndexOf` function.
+     *
+     * @private
+     * @returns {Function} Returns the "indexOf" function.
+     */
+    function getIndexOf() {
+      var result = (result = lodash.indexOf) === indexOf ? baseIndexOf : result;
+      return result;
+    }
+
+    /**
+     * Checks if `value` is a native function.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
+     */
+    function isNative(value) {
+      return typeof value == 'function' && reNative.test(value);
+    }
+
+    /**
+     * Sets `this` binding data on a given function.
+     *
+     * @private
+     * @param {Function} func The function to set data on.
+     * @param {Array} value The data array to set.
+     */
+    var setBindData = !defineProperty ? noop : function(func, value) {
+      descriptor.value = value;
+      defineProperty(func, '__bindData__', descriptor);
+    };
+
+    /**
+     * A fallback implementation of `isPlainObject` which checks if a given value
+     * is an object created by the `Object` constructor, assuming objects created
+     * by the `Object` constructor have no inherited enumerable properties and that
+     * there are no `Object.prototype` extensions.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+     */
+    function shimIsPlainObject(value) {
+      var ctor,
+          result;
+
+      // avoid non Object objects, `arguments` objects, and DOM elements
+      if (!(value && toString.call(value) == objectClass) ||
+          (ctor = value.constructor, isFunction(ctor) && !(ctor instanceof ctor))) {
+        return false;
+      }
+      // In most environments an object's own properties are iterated before
+      // its inherited properties. If the last iterated property is an object's
+      // own property then there are no inherited enumerable properties.
+      forIn(value, function(value, key) {
+        result = key;
+      });
+      return typeof result == 'undefined' || hasOwnProperty.call(value, result);
+    }
+
+    /**
+     * Used by `unescape` to convert HTML entities to characters.
+     *
+     * @private
+     * @param {string} match The matched character to unescape.
+     * @returns {string} Returns the unescaped character.
+     */
+    function unescapeHtmlChar(match) {
+      return htmlUnescapes[match];
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Checks if `value` is an `arguments` object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is an `arguments` object, else `false`.
+     * @example
+     *
+     * (function() { return _.isArguments(arguments); })(1, 2, 3);
+     * // => true
+     *
+     * _.isArguments([1, 2, 3]);
+     * // => false
+     */
+    function isArguments(value) {
+      return value && typeof value == 'object' && typeof value.length == 'number' &&
+        toString.call(value) == argsClass || false;
+    }
+
+    /**
+     * Checks if `value` is an array.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is an array, else `false`.
+     * @example
+     *
+     * (function() { return _.isArray(arguments); })();
+     * // => false
+     *
+     * _.isArray([1, 2, 3]);
+     * // => true
+     */
+    var isArray = nativeIsArray || function(value) {
+      return value && typeof value == 'object' && typeof value.length == 'number' &&
+        toString.call(value) == arrayClass || false;
+    };
+
+    /**
+     * A fallback implementation of `Object.keys` which produces an array of the
+     * given object's own enumerable property names.
+     *
+     * @private
+     * @type Function
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property names.
+     */
+    var shimKeys = function(object) {
+      var index, iterable = object, result = [];
+      if (!iterable) return result;
+      if (!(objectTypes[typeof object])) return result;
+        for (index in iterable) {
+          if (hasOwnProperty.call(iterable, index)) {
+            result.push(index);
+          }
+        }
+      return result
+    };
+
+    /**
+     * Creates an array composed of the own enumerable property names of an object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property names.
+     * @example
+     *
+     * _.keys({ 'one': 1, 'two': 2, 'three': 3 });
+     * // => ['one', 'two', 'three'] (property order is not guaranteed across environments)
+     */
+    var keys = !nativeKeys ? shimKeys : function(object) {
+      if (!isObject(object)) {
+        return [];
+      }
+      return nativeKeys(object);
+    };
+
+    /**
+     * Used to convert characters to HTML entities:
+     *
+     * Though the `>` character is escaped for symmetry, characters like `>` and `/`
+     * don't require escaping in HTML and have no special meaning unless they're part
+     * of a tag or an unquoted attribute value.
+     * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
+     */
+    var htmlEscapes = {
+      '&': '&amp;',
+      '<': '&lt;',
+      '>': '&gt;',
+      '"': '&quot;',
+      "'": '&#39;'
+    };
+
+    /** Used to convert HTML entities to characters */
+    var htmlUnescapes = invert(htmlEscapes);
+
+    /** Used to match HTML entities and HTML characters */
+    var reEscapedHtml = RegExp('(' + keys(htmlUnescapes).join('|') + ')', 'g'),
+        reUnescapedHtml = RegExp('[' + keys(htmlEscapes).join('') + ']', 'g');
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Assigns own enumerable properties of source object(s) to the destination
+     * object. Subsequent sources will overwrite property assignments of previous
+     * sources. If a callback is provided it will be executed to produce the
+     * assigned values. The callback is bound to `thisArg` and invoked with two
+     * arguments; (objectValue, sourceValue).
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @alias extend
+     * @category Objects
+     * @param {Object} object The destination object.
+     * @param {...Object} [source] The source objects.
+     * @param {Function} [callback] The function to customize assigning values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the destination object.
+     * @example
+     *
+     * _.assign({ 'name': 'fred' }, { 'employer': 'slate' });
+     * // => { 'name': 'fred', 'employer': 'slate' }
+     *
+     * var defaults = _.partialRight(_.assign, function(a, b) {
+     *   return typeof a == 'undefined' ? b : a;
+     * });
+     *
+     * var object = { 'name': 'barney' };
+     * defaults(object, { 'name': 'fred', 'employer': 'slate' });
+     * // => { 'name': 'barney', 'employer': 'slate' }
+     */
+    var assign = function(object, source, guard) {
+      var index, iterable = object, result = iterable;
+      if (!iterable) return result;
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = typeof guard == 'number' ? 2 : args.length;
+      if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {
+        var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);
+      } else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {
+        callback = args[--argsLength];
+      }
+      while (++argsIndex < argsLength) {
+        iterable = args[argsIndex];
+        if (iterable && objectTypes[typeof iterable]) {
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] && keys(iterable),
+            length = ownProps ? ownProps.length : 0;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          result[index] = callback ? callback(result[index], iterable[index]) : iterable[index];
+        }
+        }
+      }
+      return result
+    };
+
+    /**
+     * Creates a clone of `value`. If `isDeep` is `true` nested objects will also
+     * be cloned, otherwise they will be assigned by reference. If a callback
+     * is provided it will be executed to produce the cloned values. If the
+     * callback returns `undefined` cloning will be handled by the method instead.
+     * The callback is bound to `thisArg` and invoked with one argument; (value).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to clone.
+     * @param {boolean} [isDeep=false] Specify a deep clone.
+     * @param {Function} [callback] The function to customize cloning values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the cloned value.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * var shallow = _.clone(characters);
+     * shallow[0] === characters[0];
+     * // => true
+     *
+     * var deep = _.clone(characters, true);
+     * deep[0] === characters[0];
+     * // => false
+     *
+     * _.mixin({
+     *   'clone': _.partialRight(_.clone, function(value) {
+     *     return _.isElement(value) ? value.cloneNode(false) : undefined;
+     *   })
+     * });
+     *
+     * var clone = _.clone(document.body);
+     * clone.childNodes.length;
+     * // => 0
+     */
+    function clone(value, isDeep, callback, thisArg) {
+      // allows working with "Collections" methods without using their `index`
+      // and `collection` arguments for `isDeep` and `callback`
+      if (typeof isDeep != 'boolean' && isDeep != null) {
+        thisArg = callback;
+        callback = isDeep;
+        isDeep = false;
+      }
+      return baseClone(value, isDeep, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+    }
+
+    /**
+     * Creates a deep clone of `value`. If a callback is provided it will be
+     * executed to produce the cloned values. If the callback returns `undefined`
+     * cloning will be handled by the method instead. The callback is bound to
+     * `thisArg` and invoked with one argument; (value).
+     *
+     * Note: This method is loosely based on the structured clone algorithm. Functions
+     * and DOM nodes are **not** cloned. The enumerable properties of `arguments` objects and
+     * objects created by constructors other than `Object` are cloned to plain `Object` objects.
+     * See http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to deep clone.
+     * @param {Function} [callback] The function to customize cloning values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the deep cloned value.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * var deep = _.cloneDeep(characters);
+     * deep[0] === characters[0];
+     * // => false
+     *
+     * var view = {
+     *   'label': 'docs',
+     *   'node': element
+     * };
+     *
+     * var clone = _.cloneDeep(view, function(value) {
+     *   return _.isElement(value) ? value.cloneNode(true) : undefined;
+     * });
+     *
+     * clone.node == view.node;
+     * // => false
+     */
+    function cloneDeep(value, callback, thisArg) {
+      return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+    }
+
+    /**
+     * Creates an object that inherits from the given `prototype` object. If a
+     * `properties` object is provided its own enumerable properties are assigned
+     * to the created object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} prototype The object to inherit from.
+     * @param {Object} [properties] The properties to assign to the object.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * function Circle() {
+     *   Shape.call(this);
+     * }
+     *
+     * Circle.prototype = _.create(Shape.prototype, { 'constructor': Circle });
+     *
+     * var circle = new Circle;
+     * circle instanceof Circle;
+     * // => true
+     *
+     * circle instanceof Shape;
+     * // => true
+     */
+    function create(prototype, properties) {
+      var result = baseCreate(prototype);
+      return properties ? assign(result, properties) : result;
+    }
+
+    /**
+     * Assigns own enumerable properties of source object(s) to the destination
+     * object for all destination properties that resolve to `undefined`. Once a
+     * property is set, additional defaults of the same property will be ignored.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {Object} object The destination object.
+     * @param {...Object} [source] The source objects.
+     * @param- {Object} [guard] Allows working with `_.reduce` without using its
+     *  `key` and `object` arguments as sources.
+     * @returns {Object} Returns the destination object.
+     * @example
+     *
+     * var object = { 'name': 'barney' };
+     * _.defaults(object, { 'name': 'fred', 'employer': 'slate' });
+     * // => { 'name': 'barney', 'employer': 'slate' }
+     */
+    var defaults = function(object, source, guard) {
+      var index, iterable = object, result = iterable;
+      if (!iterable) return result;
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = typeof guard == 'number' ? 2 : args.length;
+      while (++argsIndex < argsLength) {
+        iterable = args[argsIndex];
+        if (iterable && objectTypes[typeof iterable]) {
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] && keys(iterable),
+            length = ownProps ? ownProps.length : 0;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          if (typeof result[index] == 'undefined') result[index] = iterable[index];
+        }
+        }
+      }
+      return result
+    };
+
+    /**
+     * This method is like `_.findIndex` except that it returns the key of the
+     * first element that passes the callback check, instead of the element itself.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to search.
+     * @param {Function|Object|string} [callback=identity] The function called per
+     *  iteration. If a property name or object is provided it will be used to
+     *  create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {string|undefined} Returns the key of the found element, else `undefined`.
+     * @example
+     *
+     * var characters = {
+     *   'barney': {  'age': 36, 'blocked': false },
+     *   'fred': {    'age': 40, 'blocked': true },
+     *   'pebbles': { 'age': 1,  'blocked': false }
+     * };
+     *
+     * _.findKey(characters, function(chr) {
+     *   return chr.age < 40;
+     * });
+     * // => 'barney' (property order is not guaranteed across environments)
+     *
+     * // using "_.where" callback shorthand
+     * _.findKey(characters, { 'age': 1 });
+     * // => 'pebbles'
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findKey(characters, 'blocked');
+     * // => 'fred'
+     */
+    function findKey(object, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      forOwn(object, function(value, key, object) {
+        if (callback(value, key, object)) {
+          result = key;
+          return false;
+        }
+      });
+      return result;
+    }
+
+    /**
+     * This method is like `_.findKey` except that it iterates over elements
+     * of a `collection` in the opposite order.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to search.
+     * @param {Function|Object|string} [callback=identity] The function called per
+     *  iteration. If a property name or object is provided it will be used to
+     *  create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {string|undefined} Returns the key of the found element, else `undefined`.
+     * @example
+     *
+     * var characters = {
+     *   'barney': {  'age': 36, 'blocked': true },
+     *   'fred': {    'age': 40, 'blocked': false },
+     *   'pebbles': { 'age': 1,  'blocked': true }
+     * };
+     *
+     * _.findLastKey(characters, function(chr) {
+     *   return chr.age < 40;
+     * });
+     * // => returns `pebbles`, assuming `_.findKey` returns `barney`
+     *
+     * // using "_.where" callback shorthand
+     * _.findLastKey(characters, { 'age': 40 });
+     * // => 'fred'
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findLastKey(characters, 'blocked');
+     * // => 'pebbles'
+     */
+    function findLastKey(object, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      forOwnRight(object, function(value, key, object) {
+        if (callback(value, key, object)) {
+          result = key;
+          return false;
+        }
+      });
+      return result;
+    }
+
+    /**
+     * Iterates over own and inherited enumerable properties of an object,
+     * executing the callback for each property. The callback is bound to `thisArg`
+     * and invoked with three arguments; (value, key, object). Callbacks may exit
+     * iteration early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
+     * };
+     *
+     * _.forIn(new Shape, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
+     */
+    var forIn = function(collection, callback, thisArg) {
+      var index, iterable = collection, result = iterable;
+      if (!iterable) return result;
+      if (!objectTypes[typeof iterable]) return result;
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+        for (index in iterable) {
+          if (callback(iterable[index], index, collection) === false) return result;
+        }
+      return result
+    };
+
+    /**
+     * This method is like `_.forIn` except that it iterates over elements
+     * of a `collection` in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
+     * };
+     *
+     * _.forInRight(new Shape, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
+     */
+    function forInRight(object, callback, thisArg) {
+      var pairs = [];
+
+      forIn(object, function(value, key) {
+        pairs.push(key, value);
+      });
+
+      var length = pairs.length;
+      callback = baseCreateCallback(callback, thisArg, 3);
+      while (length--) {
+        if (callback(pairs[length--], pairs[length], object) === false) {
+          break;
+        }
+      }
+      return object;
+    }
+
+    /**
+     * Iterates over own enumerable properties of an object, executing the callback
+     * for each property. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, key, object). Callbacks may exit iteration early by
+     * explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+     *   console.log(key);
+     * });
+     * // => logs '0', '1', and 'length' (property order is not guaranteed across environments)
+     */
+    var forOwn = function(collection, callback, thisArg) {
+      var index, iterable = collection, result = iterable;
+      if (!iterable) return result;
+      if (!objectTypes[typeof iterable]) return result;
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] && keys(iterable),
+            length = ownProps ? ownProps.length : 0;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          if (callback(iterable[index], index, collection) === false) return result;
+        }
+      return result
+    };
+
+    /**
+     * This method is like `_.forOwn` except that it iterates over elements
+     * of a `collection` in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * _.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+     *   console.log(key);
+     * });
+     * // => logs 'length', '1', and '0' assuming `_.forOwn` logs '0', '1', and 'length'
+     */
+    function forOwnRight(object, callback, thisArg) {
+      var props = keys(object),
+          length = props.length;
+
+      callback = baseCreateCallback(callback, thisArg, 3);
+      while (length--) {
+        var key = props[length];
+        if (callback(object[key], key, object) === false) {
+          break;
+        }
+      }
+      return object;
+    }
+
+    /**
+     * Creates a sorted array of property names of all enumerable properties,
+     * own and inherited, of `object` that have function values.
+     *
+     * @static
+     * @memberOf _
+     * @alias methods
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property names that have function values.
+     * @example
+     *
+     * _.functions(_);
+     * // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...]
+     */
+    function functions(object) {
+      var result = [];
+      forIn(object, function(value, key) {
+        if (isFunction(value)) {
+          result.push(key);
+        }
+      });
+      return result.sort();
+    }
+
+    /**
+     * Checks if the specified property name exists as a direct property of `object`,
+     * instead of an inherited property.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @param {string} key The name of the property to check.
+     * @returns {boolean} Returns `true` if key is a direct property, else `false`.
+     * @example
+     *
+     * _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
+     * // => true
+     */
+    function has(object, key) {
+      return object ? hasOwnProperty.call(object, key) : false;
+    }
+
+    /**
+     * Creates an object composed of the inverted keys and values of the given object.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to invert.
+     * @returns {Object} Returns the created inverted object.
+     * @example
+     *
+     * _.invert({ 'first': 'fred', 'second': 'barney' });
+     * // => { 'fred': 'first', 'barney': 'second' }
+     */
+    function invert(object) {
+      var index = -1,
+          props = keys(object),
+          length = props.length,
+          result = {};
+
+      while (++index < length) {
+        var key = props[index];
+        result[object[key]] = key;
+      }
+      return result;
+    }
+
+    /**
+     * Checks if `value` is a boolean value.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a boolean value, else `false`.
+     * @example
+     *
+     * _.isBoolean(null);
+     * // => false
+     */
+    function isBoolean(value) {
+      return value === true || value === false ||
+        value && typeof value == 'object' && toString.call(value) == boolClass || false;
+    }
+
+    /**
+     * Checks if `value` is a date.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a date, else `false`.
+     * @example
+     *
+     * _.isDate(new Date);
+     * // => true
+     */
+    function isDate(value) {
+      return value && typeof value == 'object' && toString.call(value) == dateClass || false;
+    }
+
+    /**
+     * Checks if `value` is a DOM element.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a DOM element, else `false`.
+     * @example
+     *
+     * _.isElement(document.body);
+     * // => true
+     */
+    function isElement(value) {
+      return value && value.nodeType === 1 || false;
+    }
+
+    /**
+     * Checks if `value` is empty. Arrays, strings, or `arguments` objects with a
+     * length of `0` and objects with no own enumerable properties are considered
+     * "empty".
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Array|Object|string} value The value to inspect.
+     * @returns {boolean} Returns `true` if the `value` is empty, else `false`.
+     * @example
+     *
+     * _.isEmpty([1, 2, 3]);
+     * // => false
+     *
+     * _.isEmpty({});
+     * // => true
+     *
+     * _.isEmpty('');
+     * // => true
+     */
+    function isEmpty(value) {
+      var result = true;
+      if (!value) {
+        return result;
+      }
+      var className = toString.call(value),
+          length = value.length;
+
+      if ((className == arrayClass || className == stringClass || className == argsClass ) ||
+          (className == objectClass && typeof length == 'number' && isFunction(value.splice))) {
+        return !length;
+      }
+      forOwn(value, function() {
+        return (result = false);
+      });
+      return result;
+    }
+
+    /**
+     * Performs a deep comparison between two values to determine if they are
+     * equivalent to each other. If a callback is provided it will be executed
+     * to compare values. If the callback returns `undefined` comparisons will
+     * be handled by the method instead. The callback is bound to `thisArg` and
+     * invoked with two arguments; (a, b).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} a The value to compare.
+     * @param {*} b The other value to compare.
+     * @param {Function} [callback] The function to customize comparing values.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * var copy = { 'name': 'fred' };
+     *
+     * object == copy;
+     * // => false
+     *
+     * _.isEqual(object, copy);
+     * // => true
+     *
+     * var words = ['hello', 'goodbye'];
+     * var otherWords = ['hi', 'goodbye'];
+     *
+     * _.isEqual(words, otherWords, function(a, b) {
+     *   var reGreet = /^(?:hello|hi)$/i,
+     *       aGreet = _.isString(a) && reGreet.test(a),
+     *       bGreet = _.isString(b) && reGreet.test(b);
+     *
+     *   return (aGreet || bGreet) ? (aGreet == bGreet) : undefined;
+     * });
+     * // => true
+     */
+    function isEqual(a, b, callback, thisArg) {
+      return baseIsEqual(a, b, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 2));
+    }
+
+    /**
+     * Checks if `value` is, or can be coerced to, a finite number.
+     *
+     * Note: This is not the same as native `isFinite` which will return true for
+     * booleans and empty strings. See http://es5.github.io/#x15.1.2.5.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is finite, else `false`.
+     * @example
+     *
+     * _.isFinite(-101);
+     * // => true
+     *
+     * _.isFinite('10');
+     * // => true
+     *
+     * _.isFinite(true);
+     * // => false
+     *
+     * _.isFinite('');
+     * // => false
+     *
+     * _.isFinite(Infinity);
+     * // => false
+     */
+    function isFinite(value) {
+      return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value));
+    }
+
+    /**
+     * Checks if `value` is a function.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a function, else `false`.
+     * @example
+     *
+     * _.isFunction(_);
+     * // => true
+     */
+    function isFunction(value) {
+      return typeof value == 'function';
+    }
+
+    /**
+     * Checks if `value` is the language type of Object.
+     * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is an object, else `false`.
+     * @example
+     *
+     * _.isObject({});
+     * // => true
+     *
+     * _.isObject([1, 2, 3]);
+     * // => true
+     *
+     * _.isObject(1);
+     * // => false
+     */
+    function isObject(value) {
+      // check if the value is the ECMAScript language type of Object
+      // http://es5.github.io/#x8
+      // and avoid a V8 bug
+      // http://code.google.com/p/v8/issues/detail?id=2291
+      return !!(value && objectTypes[typeof value]);
+    }
+
+    /**
+     * Checks if `value` is `NaN`.
+     *
+     * Note: This is not the same as native `isNaN` which will return `true` for
+     * `undefined` and other non-numeric values. See http://es5.github.io/#x15.1.2.4.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is `NaN`, else `false`.
+     * @example
+     *
+     * _.isNaN(NaN);
+     * // => true
+     *
+     * _.isNaN(new Number(NaN));
+     * // => true
+     *
+     * isNaN(undefined);
+     * // => true
+     *
+     * _.isNaN(undefined);
+     * // => false
+     */
+    function isNaN(value) {
+      // `NaN` as a primitive is the only value that is not equal to itself
+      // (perform the [[Class]] check first to avoid errors with some host objects in IE)
+      return isNumber(value) && value != +value;
+    }
+
+    /**
+     * Checks if `value` is `null`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is `null`, else `false`.
+     * @example
+     *
+     * _.isNull(null);
+     * // => true
+     *
+     * _.isNull(undefined);
+     * // => false
+     */
+    function isNull(value) {
+      return value === null;
+    }
+
+    /**
+     * Checks if `value` is a number.
+     *
+     * Note: `NaN` is considered a number. See http://es5.github.io/#x8.5.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a number, else `false`.
+     * @example
+     *
+     * _.isNumber(8.4 * 5);
+     * // => true
+     */
+    function isNumber(value) {
+      return typeof value == 'number' ||
+        value && typeof value == 'object' && toString.call(value) == numberClass || false;
+    }
+
+    /**
+     * Checks if `value` is an object created by the `Object` constructor.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * _.isPlainObject(new Shape);
+     * // => false
+     *
+     * _.isPlainObject([1, 2, 3]);
+     * // => false
+     *
+     * _.isPlainObject({ 'x': 0, 'y': 0 });
+     * // => true
+     */
+    var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
+      if (!(value && toString.call(value) == objectClass)) {
+        return false;
+      }
+      var valueOf = value.valueOf,
+          objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
+
+      return objProto
+        ? (value == objProto || getPrototypeOf(value) == objProto)
+        : shimIsPlainObject(value);
+    };
+
+    /**
+     * Checks if `value` is a regular expression.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a regular expression, else `false`.
+     * @example
+     *
+     * _.isRegExp(/fred/);
+     * // => true
+     */
+    function isRegExp(value) {
+      return value && typeof value == 'object' && toString.call(value) == regexpClass || false;
+    }
+
+    /**
+     * Checks if `value` is a string.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is a string, else `false`.
+     * @example
+     *
+     * _.isString('fred');
+     * // => true
+     */
+    function isString(value) {
+      return typeof value == 'string' ||
+        value && typeof value == 'object' && toString.call(value) == stringClass || false;
+    }
+
+    /**
+     * Checks if `value` is `undefined`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the `value` is `undefined`, else `false`.
+     * @example
+     *
+     * _.isUndefined(void 0);
+     * // => true
+     */
+    function isUndefined(value) {
+      return typeof value == 'undefined';
+    }
+
+    /**
+     * Creates an object with the same keys as `object` and values generated by
+     * running each own enumerable property of `object` through the callback.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, key, object).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new object with values of the results of each `callback` execution.
+     * @example
+     *
+     * _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(num) { return num * 3; });
+     * // => { 'a': 3, 'b': 6, 'c': 9 }
+     *
+     * var characters = {
+     *   'fred': { 'name': 'fred', 'age': 40 },
+     *   'pebbles': { 'name': 'pebbles', 'age': 1 }
+     * };
+     *
+     * // using "_.pluck" callback shorthand
+     * _.mapValues(characters, 'age');
+     * // => { 'fred': 40, 'pebbles': 1 }
+     */
+    function mapValues(object, callback, thisArg) {
+      var result = {};
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      forOwn(object, function(value, key, object) {
+        result[key] = callback(value, key, object);
+      });
+      return result;
+    }
+
+    /**
+     * Recursively merges own enumerable properties of the source object(s), that
+     * don't resolve to `undefined` into the destination object. Subsequent sources
+     * will overwrite property assignments of previous sources. If a callback is
+     * provided it will be executed to produce the merged values of the destination
+     * and source properties. If the callback returns `undefined` merging will
+     * be handled by the method instead. The callback is bound to `thisArg` and
+     * invoked with two arguments; (objectValue, sourceValue).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The destination object.
+     * @param {...Object} [source] The source objects.
+     * @param {Function} [callback] The function to customize merging properties.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the destination object.
+     * @example
+     *
+     * var names = {
+     *   'characters': [
+     *     { 'name': 'barney' },
+     *     { 'name': 'fred' }
+     *   ]
+     * };
+     *
+     * var ages = {
+     *   'characters': [
+     *     { 'age': 36 },
+     *     { 'age': 40 }
+     *   ]
+     * };
+     *
+     * _.merge(names, ages);
+     * // => { 'characters': [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }] }
+     *
+     * var food = {
+     *   'fruits': ['apple'],
+     *   'vegetables': ['beet']
+     * };
+     *
+     * var otherFood = {
+     *   'fruits': ['banana'],
+     *   'vegetables': ['carrot']
+     * };
+     *
+     * _.merge(food, otherFood, function(a, b) {
+     *   return _.isArray(a) ? a.concat(b) : undefined;
+     * });
+     * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot] }
+     */
+    function merge(object) {
+      var args = arguments,
+          length = 2;
+
+      if (!isObject(object)) {
+        return object;
+      }
+      // allows working with `_.reduce` and `_.reduceRight` without using
+      // their `index` and `collection` arguments
+      if (typeof args[2] != 'number') {
+        length = args.length;
+      }
+      if (length > 3 && typeof args[length - 2] == 'function') {
+        var callback = baseCreateCallback(args[--length - 1], args[length--], 2);
+      } else if (length > 2 && typeof args[length - 1] == 'function') {
+        callback = args[--length];
+      }
+      var sources = slice(arguments, 1, length),
+          index = -1,
+          stackA = getArray(),
+          stackB = getArray();
+
+      while (++index < length) {
+        baseMerge(object, sources[index], callback, stackA, stackB);
+      }
+      releaseArray(stackA);
+      releaseArray(stackB);
+      return object;
+    }
+
+    /**
+     * Creates a shallow clone of `object` excluding the specified properties.
+     * Property names may be specified as individual arguments or as arrays of
+     * property names. If a callback is provided it will be executed for each
+     * property of `object` omitting the properties the callback returns truey
+     * for. The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, key, object).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The source object.
+     * @param {Function|...string|string[]} [callback] The properties to omit or the
+     *  function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns an object without the omitted properties.
+     * @example
+     *
+     * _.omit({ 'name': 'fred', 'age': 40 }, 'age');
+     * // => { 'name': 'fred' }
+     *
+     * _.omit({ 'name': 'fred', 'age': 40 }, function(value) {
+     *   return typeof value == 'number';
+     * });
+     * // => { 'name': 'fred' }
+     */
+    function omit(object, callback, thisArg) {
+      var result = {};
+      if (typeof callback != 'function') {
+        var props = [];
+        forIn(object, function(value, key) {
+          props.push(key);
+        });
+        props = baseDifference(props, baseFlatten(arguments, true, false, 1));
+
+        var index = -1,
+            length = props.length;
+
+        while (++index < length) {
+          var key = props[index];
+          result[key] = object[key];
+        }
+      } else {
+        callback = lodash.createCallback(callback, thisArg, 3);
+        forIn(object, function(value, key, object) {
+          if (!callback(value, key, object)) {
+            result[key] = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Creates a two dimensional array of an object's key-value pairs,
+     * i.e. `[[key1, value1], [key2, value2]]`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns new array of key-value pairs.
+     * @example
+     *
+     * _.pairs({ 'barney': 36, 'fred': 40 });
+     * // => [['barney', 36], ['fred', 40]] (property order is not guaranteed across environments)
+     */
+    function pairs(object) {
+      var index = -1,
+          props = keys(object),
+          length = props.length,
+          result = Array(length);
+
+      while (++index < length) {
+        var key = props[index];
+        result[index] = [key, object[key]];
+      }
+      return result;
+    }
+
+    /**
+     * Creates a shallow clone of `object` composed of the specified properties.
+     * Property names may be specified as individual arguments or as arrays of
+     * property names. If a callback is provided it will be executed for each
+     * property of `object` picking the properties the callback returns truey
+     * for. The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, key, object).
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The source object.
+     * @param {Function|...string|string[]} [callback] The function called per
+     *  iteration or property names to pick, specified as individual property
+     *  names or arrays of property names.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns an object composed of the picked properties.
+     * @example
+     *
+     * _.pick({ 'name': 'fred', '_userid': 'fred1' }, 'name');
+     * // => { 'name': 'fred' }
+     *
+     * _.pick({ 'name': 'fred', '_userid': 'fred1' }, function(value, key) {
+     *   return key.charAt(0) != '_';
+     * });
+     * // => { 'name': 'fred' }
+     */
+    function pick(object, callback, thisArg) {
+      var result = {};
+      if (typeof callback != 'function') {
+        var index = -1,
+            props = baseFlatten(arguments, true, false, 1),
+            length = isObject(object) ? props.length : 0;
+
+        while (++index < length) {
+          var key = props[index];
+          if (key in object) {
+            result[key] = object[key];
+          }
+        }
+      } else {
+        callback = lodash.createCallback(callback, thisArg, 3);
+        forIn(object, function(value, key, object) {
+          if (callback(value, key, object)) {
+            result[key] = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * An alternative to `_.reduce` this method transforms `object` to a new
+     * `accumulator` object which is the result of running each of its own
+     * enumerable properties through a callback, with each callback execution
+     * potentially mutating the `accumulator` object. The callback is bound to
+     * `thisArg` and invoked with four arguments; (accumulator, value, key, object).
+     * Callbacks may exit iteration early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Array|Object} object The object to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [accumulator] The custom accumulator value.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * var squares = _.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function(result, num) {
+     *   num *= num;
+     *   if (num % 2) {
+     *     return result.push(num) < 3;
+     *   }
+     * });
+     * // => [1, 9, 25]
+     *
+     * var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+     *   result[key] = num * 3;
+     * });
+     * // => { 'a': 3, 'b': 6, 'c': 9 }
+     */
+    function transform(object, callback, accumulator, thisArg) {
+      var isArr = isArray(object);
+      if (accumulator == null) {
+        if (isArr) {
+          accumulator = [];
+        } else {
+          var ctor = object && object.constructor,
+              proto = ctor && ctor.prototype;
+
+          accumulator = baseCreate(proto);
+        }
+      }
+      if (callback) {
+        callback = lodash.createCallback(callback, thisArg, 4);
+        (isArr ? forEach : forOwn)(object, function(value, index, object) {
+          return callback(accumulator, value, index, object);
+        });
+      }
+      return accumulator;
+    }
+
+    /**
+     * Creates an array composed of the own enumerable property values of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns an array of property values.
+     * @example
+     *
+     * _.values({ 'one': 1, 'two': 2, 'three': 3 });
+     * // => [1, 2, 3] (property order is not guaranteed across environments)
+     */
+    function values(object) {
+      var index = -1,
+          props = keys(object),
+          length = props.length,
+          result = Array(length);
+
+      while (++index < length) {
+        result[index] = object[props[index]];
+      }
+      return result;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates an array of elements from the specified indexes, or keys, of the
+     * `collection`. Indexes may be specified as individual arguments or as arrays
+     * of indexes.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {...(number|number[]|string|string[])} [index] The indexes of `collection`
+     *   to retrieve, specified as individual indexes or arrays of indexes.
+     * @returns {Array} Returns a new array of elements corresponding to the
+     *  provided indexes.
+     * @example
+     *
+     * _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
+     * // => ['a', 'c', 'e']
+     *
+     * _.at(['fred', 'barney', 'pebbles'], 0, 2);
+     * // => ['fred', 'pebbles']
+     */
+    function at(collection) {
+      var args = arguments,
+          index = -1,
+          props = baseFlatten(args, true, false, 1),
+          length = (args[2] && args[2][args[1]] === collection) ? 1 : props.length,
+          result = Array(length);
+
+      while(++index < length) {
+        result[index] = collection[props[index]];
+      }
+      return result;
+    }
+
+    /**
+     * Checks if a given value is present in a collection using strict equality
+     * for comparisons, i.e. `===`. If `fromIndex` is negative, it is used as the
+     * offset from the end of the collection.
+     *
+     * @static
+     * @memberOf _
+     * @alias include
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {*} target The value to check for.
+     * @param {number} [fromIndex=0] The index to search from.
+     * @returns {boolean} Returns `true` if the `target` element is found, else `false`.
+     * @example
+     *
+     * _.contains([1, 2, 3], 1);
+     * // => true
+     *
+     * _.contains([1, 2, 3], 1, 2);
+     * // => false
+     *
+     * _.contains({ 'name': 'fred', 'age': 40 }, 'fred');
+     * // => true
+     *
+     * _.contains('pebbles', 'eb');
+     * // => true
+     */
+    function contains(collection, target, fromIndex) {
+      var index = -1,
+          indexOf = getIndexOf(),
+          length = collection ? collection.length : 0,
+          result = false;
+
+      fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0;
+      if (isArray(collection)) {
+        result = indexOf(collection, target, fromIndex) > -1;
+      } else if (typeof length == 'number') {
+        result = (isString(collection) ? collection.indexOf(target, fromIndex) : indexOf(collection, target, fromIndex)) > -1;
+      } else {
+        forOwn(collection, function(value) {
+          if (++index >= fromIndex) {
+            return !(result = value === target);
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of `collection` through the callback. The corresponding value
+     * of each key is the number of times the key was returned by the callback.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); });
+     * // => { '4': 1, '6': 2 }
+     *
+     * _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+     * // => { '4': 1, '6': 2 }
+     *
+     * _.countBy(['one', 'two', 'three'], 'length');
+     * // => { '3': 2, '5': 1 }
+     */
+    var countBy = createAggregator(function(result, value, key) {
+      (hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1);
+    });
+
+    /**
+     * Checks if the given callback returns truey value for **all** elements of
+     * a collection. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias all
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {boolean} Returns `true` if all elements passed the callback check,
+     *  else `false`.
+     * @example
+     *
+     * _.every([true, 1, null, 'yes']);
+     * // => false
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.every(characters, 'age');
+     * // => true
+     *
+     * // using "_.where" callback shorthand
+     * _.every(characters, { 'age': 36 });
+     * // => false
+     */
+    function every(collection, callback, thisArg) {
+      var result = true;
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          if (!(result = !!callback(collection[index], index, collection))) {
+            break;
+          }
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          return (result = !!callback(value, index, collection));
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Iterates over elements of a collection, returning an array of all elements
+     * the callback returns truey for. The callback is bound to `thisArg` and
+     * invoked with three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias select
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of elements that passed the callback check.
+     * @example
+     *
+     * var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+     * // => [2, 4, 6]
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'blocked': false },
+     *   { 'name': 'fred',   'age': 40, 'blocked': true }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.filter(characters, 'blocked');
+     * // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+     *
+     * // using "_.where" callback shorthand
+     * _.filter(characters, { 'age': 36 });
+     * // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+     */
+    function filter(collection, callback, thisArg) {
+      var result = [];
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          var value = collection[index];
+          if (callback(value, index, collection)) {
+            result.push(value);
+          }
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          if (callback(value, index, collection)) {
+            result.push(value);
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Iterates over elements of a collection, returning the first element that
+     * the callback returns truey for. The callback is bound to `thisArg` and
+     * invoked with three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias detect, findWhere
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the found element, else `undefined`.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36, 'blocked': false },
+     *   { 'name': 'fred',    'age': 40, 'blocked': true },
+     *   { 'name': 'pebbles', 'age': 1,  'blocked': false }
+     * ];
+     *
+     * _.find(characters, function(chr) {
+     *   return chr.age < 40;
+     * });
+     * // => { 'name': 'barney', 'age': 36, 'blocked': false }
+     *
+     * // using "_.where" callback shorthand
+     * _.find(characters, { 'age': 1 });
+     * // =>  { 'name': 'pebbles', 'age': 1, 'blocked': false }
+     *
+     * // using "_.pluck" callback shorthand
+     * _.find(characters, 'blocked');
+     * // => { 'name': 'fred', 'age': 40, 'blocked': true }
+     */
+    function find(collection, callback, thisArg) {
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          var value = collection[index];
+          if (callback(value, index, collection)) {
+            return value;
+          }
+        }
+      } else {
+        var result;
+        forOwn(collection, function(value, index, collection) {
+          if (callback(value, index, collection)) {
+            result = value;
+            return false;
+          }
+        });
+        return result;
+      }
+    }
+
+    /**
+     * This method is like `_.find` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the found element, else `undefined`.
+     * @example
+     *
+     * _.findLast([1, 2, 3, 4], function(num) {
+     *   return num % 2 == 1;
+     * });
+     * // => 3
+     */
+    function findLast(collection, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      forEachRight(collection, function(value, index, collection) {
+        if (callback(value, index, collection)) {
+          result = value;
+          return false;
+        }
+      });
+      return result;
+    }
+
+    /**
+     * Iterates over elements of a collection, executing the callback for each
+     * element. The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection). Callbacks may exit iteration early by
+     * explicitly returning `false`.
+     *
+     * Note: As with other "Collections" methods, objects with a `length` property
+     * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
+     * may be used for object iteration.
+     *
+     * @static
+     * @memberOf _
+     * @alias each
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array|Object|string} Returns `collection`.
+     * @example
+     *
+     * _([1, 2, 3]).forEach(function(num) { console.log(num); }).join(',');
+     * // => logs each number and returns '1,2,3'
+     *
+     * _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { console.log(num); });
+     * // => logs each number and returns the object (property order is not guaranteed across environments)
+     */
+    function forEach(collection, callback, thisArg) {
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+      if (typeof length == 'number') {
+        while (++index < length) {
+          if (callback(collection[index], index, collection) === false) {
+            break;
+          }
+        }
+      } else {
+        forOwn(collection, callback);
+      }
+      return collection;
+    }
+
+    /**
+     * This method is like `_.forEach` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @alias eachRight
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array|Object|string} Returns `collection`.
+     * @example
+     *
+     * _([1, 2, 3]).forEachRight(function(num) { console.log(num); }).join(',');
+     * // => logs each number from right to left and returns '3,2,1'
+     */
+    function forEachRight(collection, callback, thisArg) {
+      var length = collection ? collection.length : 0;
+      callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+      if (typeof length == 'number') {
+        while (length--) {
+          if (callback(collection[length], length, collection) === false) {
+            break;
+          }
+        }
+      } else {
+        var props = keys(collection);
+        length = props.length;
+        forOwn(collection, function(value, key, collection) {
+          key = props ? props[--length] : --length;
+          return callback(collection[key], key, collection);
+        });
+      }
+      return collection;
+    }
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of a collection through the callback. The corresponding value
+     * of each key is an array of the elements responsible for generating the key.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); });
+     * // => { '4': [4.2], '6': [6.1, 6.4] }
+     *
+     * _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+     * // => { '4': [4.2], '6': [6.1, 6.4] }
+     *
+     * // using "_.pluck" callback shorthand
+     * _.groupBy(['one', 'two', 'three'], 'length');
+     * // => { '3': ['one', 'two'], '5': ['three'] }
+     */
+    var groupBy = createAggregator(function(result, value, key) {
+      (hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value);
+    });
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of the collection through the given callback. The corresponding
+     * value of each key is the last element responsible for generating the key.
+     * The callback is bound to `thisArg` and invoked with three arguments;
+     * (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * var keys = [
+     *   { 'dir': 'left', 'code': 97 },
+     *   { 'dir': 'right', 'code': 100 }
+     * ];
+     *
+     * _.indexBy(keys, 'dir');
+     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
+     *
+     * _.indexBy(keys, function(key) { return String.fromCharCode(key.code); });
+     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+     *
+     * _.indexBy(characters, function(key) { this.fromCharCode(key.code); }, String);
+     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+     */
+    var indexBy = createAggregator(function(result, value, key) {
+      result[key] = value;
+    });
+
+    /**
+     * Invokes the method named by `methodName` on each element in the `collection`
+     * returning an array of the results of each invoked method. Additional arguments
+     * will be provided to each invoked method. If `methodName` is a function it
+     * will be invoked for, and `this` bound to, each element in the `collection`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|string} methodName The name of the method to invoke or
+     *  the function invoked per iteration.
+     * @param {...*} [arg] Arguments to invoke the method with.
+     * @returns {Array} Returns a new array of the results of each invoked method.
+     * @example
+     *
+     * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
+     * // => [[1, 5, 7], [1, 2, 3]]
+     *
+     * _.invoke([123, 456], String.prototype.split, '');
+     * // => [['1', '2', '3'], ['4', '5', '6']]
+     */
+    function invoke(collection, methodName) {
+      var args = slice(arguments, 2),
+          index = -1,
+          isFunc = typeof methodName == 'function',
+          length = collection ? collection.length : 0,
+          result = Array(typeof length == 'number' ? length : 0);
+
+      forEach(collection, function(value) {
+        result[++index] = (isFunc ? methodName : value[methodName]).apply(value, args);
+      });
+      return result;
+    }
+
+    /**
+     * Creates an array of values by running each element in the collection
+     * through the callback. The callback is bound to `thisArg` and invoked with
+     * three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias collect
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of the results of each `callback` execution.
+     * @example
+     *
+     * _.map([1, 2, 3], function(num) { return num * 3; });
+     * // => [3, 6, 9]
+     *
+     * _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
+     * // => [3, 6, 9] (property order is not guaranteed across environments)
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.map(characters, 'name');
+     * // => ['barney', 'fred']
+     */
+    function map(collection, callback, thisArg) {
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      callback = lodash.createCallback(callback, thisArg, 3);
+      if (typeof length == 'number') {
+        var result = Array(length);
+        while (++index < length) {
+          result[index] = callback(collection[index], index, collection);
+        }
+      } else {
+        result = [];
+        forOwn(collection, function(value, key, collection) {
+          result[++index] = callback(value, key, collection);
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Retrieves the maximum value of a collection. If the collection is empty or
+     * falsey `-Infinity` is returned. If a callback is provided it will be executed
+     * for each value in the collection to generate the criterion by which the value
+     * is ranked. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the maximum value.
+     * @example
+     *
+     * _.max([4, 2, 8, 6]);
+     * // => 8
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * _.max(characters, function(chr) { return chr.age; });
+     * // => { 'name': 'fred', 'age': 40 };
+     *
+     * // using "_.pluck" callback shorthand
+     * _.max(characters, 'age');
+     * // => { 'name': 'fred', 'age': 40 };
+     */
+    function max(collection, callback, thisArg) {
+      var computed = -Infinity,
+          result = computed;
+
+      // allows working with functions like `_.map` without using
+      // their `index` argument as a callback
+      if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+        callback = null;
+      }
+      if (callback == null && isArray(collection)) {
+        var index = -1,
+            length = collection.length;
+
+        while (++index < length) {
+          var value = collection[index];
+          if (value > result) {
+            result = value;
+          }
+        }
+      } else {
+        callback = (callback == null && isString(collection))
+          ? charAtCallback
+          : lodash.createCallback(callback, thisArg, 3);
+
+        forEach(collection, function(value, index, collection) {
+          var current = callback(value, index, collection);
+          if (current > computed) {
+            computed = current;
+            result = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Retrieves the minimum value of a collection. If the collection is empty or
+     * falsey `Infinity` is returned. If a callback is provided it will be executed
+     * for each value in the collection to generate the criterion by which the value
+     * is ranked. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the minimum value.
+     * @example
+     *
+     * _.min([4, 2, 8, 6]);
+     * // => 2
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * _.min(characters, function(chr) { return chr.age; });
+     * // => { 'name': 'barney', 'age': 36 };
+     *
+     * // using "_.pluck" callback shorthand
+     * _.min(characters, 'age');
+     * // => { 'name': 'barney', 'age': 36 };
+     */
+    function min(collection, callback, thisArg) {
+      var computed = Infinity,
+          result = computed;
+
+      // allows working with functions like `_.map` without using
+      // their `index` argument as a callback
+      if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+        callback = null;
+      }
+      if (callback == null && isArray(collection)) {
+        var index = -1,
+            length = collection.length;
+
+        while (++index < length) {
+          var value = collection[index];
+          if (value < result) {
+            result = value;
+          }
+        }
+      } else {
+        callback = (callback == null && isString(collection))
+          ? charAtCallback
+          : lodash.createCallback(callback, thisArg, 3);
+
+        forEach(collection, function(value, index, collection) {
+          var current = callback(value, index, collection);
+          if (current < computed) {
+            computed = current;
+            result = value;
+          }
+        });
+      }
+      return result;
+    }
+
+    /**
+     * Retrieves the value of a specified property from all elements in the collection.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {string} property The name of the property to pluck.
+     * @returns {Array} Returns a new array of property values.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * _.pluck(characters, 'name');
+     * // => ['barney', 'fred']
+     */
+    var pluck = map;
+
+    /**
+     * Reduces a collection to a value which is the accumulated result of running
+     * each element in the collection through the callback, where each successive
+     * callback execution consumes the return value of the previous execution. If
+     * `accumulator` is not provided the first element of the collection will be
+     * used as the initial `accumulator` value. The callback is bound to `thisArg`
+     * and invoked with four arguments; (accumulator, value, index|key, collection).
+     *
+     * @static
+     * @memberOf _
+     * @alias foldl, inject
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [accumulator] Initial value of the accumulator.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * var sum = _.reduce([1, 2, 3], function(sum, num) {
+     *   return sum + num;
+     * });
+     * // => 6
+     *
+     * var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+     *   result[key] = num * 3;
+     *   return result;
+     * }, {});
+     * // => { 'a': 3, 'b': 6, 'c': 9 }
+     */
+    function reduce(collection, callback, accumulator, thisArg) {
+      if (!collection) return accumulator;
+      var noaccum = arguments.length < 3;
+      callback = lodash.createCallback(callback, thisArg, 4);
+
+      var index = -1,
+          length = collection.length;
+
+      if (typeof length == 'number') {
+        if (noaccum) {
+          accumulator = collection[++index];
+        }
+        while (++index < length) {
+          accumulator = callback(accumulator, collection[index], index, collection);
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          accumulator = noaccum
+            ? (noaccum = false, value)
+            : callback(accumulator, value, index, collection)
+        });
+      }
+      return accumulator;
+    }
+
+    /**
+     * This method is like `_.reduce` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @alias foldr
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function} [callback=identity] The function called per iteration.
+     * @param {*} [accumulator] Initial value of the accumulator.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * var list = [[0, 1], [2, 3], [4, 5]];
+     * var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
+     * // => [4, 5, 2, 3, 0, 1]
+     */
+    function reduceRight(collection, callback, accumulator, thisArg) {
+      var noaccum = arguments.length < 3;
+      callback = lodash.createCallback(callback, thisArg, 4);
+      forEachRight(collection, function(value, index, collection) {
+        accumulator = noaccum
+          ? (noaccum = false, value)
+          : callback(accumulator, value, index, collection);
+      });
+      return accumulator;
+    }
+
+    /**
+     * The opposite of `_.filter` this method returns the elements of a
+     * collection that the callback does **not** return truey for.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of elements that failed the callback check.
+     * @example
+     *
+     * var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+     * // => [1, 3, 5]
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'blocked': false },
+     *   { 'name': 'fred',   'age': 40, 'blocked': true }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.reject(characters, 'blocked');
+     * // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+     *
+     * // using "_.where" callback shorthand
+     * _.reject(characters, { 'age': 36 });
+     * // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+     */
+    function reject(collection, callback, thisArg) {
+      callback = lodash.createCallback(callback, thisArg, 3);
+      return filter(collection, function(value, index, collection) {
+        return !callback(value, index, collection);
+      });
+    }
+
+    /**
+     * Retrieves a random element or `n` random elements from a collection.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to sample.
+     * @param {number} [n] The number of elements to sample.
+     * @param- {Object} [guard] Allows working with functions like `_.map`
+     *  without using their `index` arguments as `n`.
+     * @returns {Array} Returns the random sample(s) of `collection`.
+     * @example
+     *
+     * _.sample([1, 2, 3, 4]);
+     * // => 2
+     *
+     * _.sample([1, 2, 3, 4], 2);
+     * // => [3, 1]
+     */
+    function sample(collection, n, guard) {
+      if (collection && typeof collection.length != 'number') {
+        collection = values(collection);
+      }
+      if (n == null || guard) {
+        return collection ? collection[baseRandom(0, collection.length - 1)] : undefined;
+      }
+      var result = shuffle(collection);
+      result.length = nativeMin(nativeMax(0, n), result.length);
+      return result;
+    }
+
+    /**
+     * Creates an array of shuffled values, using a version of the Fisher-Yates
+     * shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to shuffle.
+     * @returns {Array} Returns a new shuffled collection.
+     * @example
+     *
+     * _.shuffle([1, 2, 3, 4, 5, 6]);
+     * // => [4, 1, 6, 3, 5, 2]
+     */
+    function shuffle(collection) {
+      var index = -1,
+          length = collection ? collection.length : 0,
+          result = Array(typeof length == 'number' ? length : 0);
+
+      forEach(collection, function(value) {
+        var rand = baseRandom(0, ++index);
+        result[index] = result[rand];
+        result[rand] = value;
+      });
+      return result;
+    }
+
+    /**
+     * Gets the size of the `collection` by returning `collection.length` for arrays
+     * and array-like objects or the number of own enumerable properties for objects.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to inspect.
+     * @returns {number} Returns `collection.length` or number of own enumerable properties.
+     * @example
+     *
+     * _.size([1, 2]);
+     * // => 2
+     *
+     * _.size({ 'one': 1, 'two': 2, 'three': 3 });
+     * // => 3
+     *
+     * _.size('pebbles');
+     * // => 7
+     */
+    function size(collection) {
+      var length = collection ? collection.length : 0;
+      return typeof length == 'number' ? length : keys(collection).length;
+    }
+
+    /**
+     * Checks if the callback returns a truey value for **any** element of a
+     * collection. The function returns as soon as it finds a passing value and
+     * does not iterate over the entire collection. The callback is bound to
+     * `thisArg` and invoked with three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias any
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {boolean} Returns `true` if any element passed the callback check,
+     *  else `false`.
+     * @example
+     *
+     * _.some([null, 0, 'yes', false], Boolean);
+     * // => true
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'blocked': false },
+     *   { 'name': 'fred',   'age': 40, 'blocked': true }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.some(characters, 'blocked');
+     * // => true
+     *
+     * // using "_.where" callback shorthand
+     * _.some(characters, { 'age': 1 });
+     * // => false
+     */
+    function some(collection, callback, thisArg) {
+      var result;
+      callback = lodash.createCallback(callback, thisArg, 3);
+
+      var index = -1,
+          length = collection ? collection.length : 0;
+
+      if (typeof length == 'number') {
+        while (++index < length) {
+          if ((result = callback(collection[index], index, collection))) {
+            break;
+          }
+        }
+      } else {
+        forOwn(collection, function(value, index, collection) {
+          return !(result = callback(value, index, collection));
+        });
+      }
+      return !!result;
+    }
+
+    /**
+     * Creates an array of elements, sorted in ascending order by the results of
+     * running each element in a collection through the callback. This method
+     * performs a stable sort, that is, it will preserve the original sort order
+     * of equal elements. The callback is bound to `thisArg` and invoked with
+     * three arguments; (value, index|key, collection).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an array of property names is provided for `callback` the collection
+     * will be sorted by each property value.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Array|Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of sorted elements.
+     * @example
+     *
+     * _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
+     * // => [3, 1, 2]
+     *
+     * _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
+     * // => [3, 1, 2]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36 },
+     *   { 'name': 'fred',    'age': 40 },
+     *   { 'name': 'barney',  'age': 26 },
+     *   { 'name': 'fred',    'age': 30 }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.map(_.sortBy(characters, 'age'), _.values);
+     * // => [['barney', 26], ['fred', 30], ['barney', 36], ['fred', 40]]
+     *
+     * // sorting by multiple properties
+     * _.map(_.sortBy(characters, ['name', 'age']), _.values);
+     * // = > [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
+     */
+    function sortBy(collection, callback, thisArg) {
+      var index = -1,
+          isArr = isArray(callback),
+          length = collection ? collection.length : 0,
+          result = Array(typeof length == 'number' ? length : 0);
+
+      if (!isArr) {
+        callback = lodash.createCallback(callback, thisArg, 3);
+      }
+      forEach(collection, function(value, key, collection) {
+        var object = result[++index] = getObject();
+        if (isArr) {
+          object.criteria = map(callback, function(key) { return value[key]; });
+        } else {
+          (object.criteria = getArray())[0] = callback(value, key, collection);
+        }
+        object.index = index;
+        object.value = value;
+      });
+
+      length = result.length;
+      result.sort(compareAscending);
+      while (length--) {
+        var object = result[length];
+        result[length] = object.value;
+        if (!isArr) {
+          releaseArray(object.criteria);
+        }
+        releaseObject(object);
+      }
+      return result;
+    }
+
+    /**
+     * Converts the `collection` to an array.
+     *
+     * @static
+     * @memberOf _
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to convert.
+     * @returns {Array} Returns the new converted array.
+     * @example
+     *
+     * (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4);
+     * // => [2, 3, 4]
+     */
+    function toArray(collection) {
+      if (collection && typeof collection.length == 'number') {
+        return slice(collection);
+      }
+      return values(collection);
+    }
+
+    /**
+     * Performs a deep comparison of each element in a `collection` to the given
+     * `properties` object, returning an array of all elements that have equivalent
+     * property values.
+     *
+     * @static
+     * @memberOf _
+     * @type Function
+     * @category Collections
+     * @param {Array|Object|string} collection The collection to iterate over.
+     * @param {Object} props The object of property values to filter by.
+     * @returns {Array} Returns a new array of elements that have the given properties.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36, 'pets': ['hoppy'] },
+     *   { 'name': 'fred',   'age': 40, 'pets': ['baby puss', 'dino'] }
+     * ];
+     *
+     * _.where(characters, { 'age': 36 });
+     * // => [{ 'name': 'barney', 'age': 36, 'pets': ['hoppy'] }]
+     *
+     * _.where(characters, { 'pets': ['dino'] });
+     * // => [{ 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }]
+     */
+    var where = filter;
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates an array with all falsey values removed. The values `false`, `null`,
+     * `0`, `""`, `undefined`, and `NaN` are all falsey.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to compact.
+     * @returns {Array} Returns a new array of filtered values.
+     * @example
+     *
+     * _.compact([0, 1, false, 2, '', 3]);
+     * // => [1, 2, 3]
+     */
+    function compact(array) {
+      var index = -1,
+          length = array ? array.length : 0,
+          result = [];
+
+      while (++index < length) {
+        var value = array[index];
+        if (value) {
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Creates an array excluding all values of the provided arrays using strict
+     * equality for comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to process.
+     * @param {...Array} [values] The arrays of values to exclude.
+     * @returns {Array} Returns a new array of filtered values.
+     * @example
+     *
+     * _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
+     * // => [1, 3, 4]
+     */
+    function difference(array) {
+      return baseDifference(array, baseFlatten(arguments, true, true, 1));
+    }
+
+    /**
+     * This method is like `_.find` except that it returns the index of the first
+     * element that passes the callback check, instead of the element itself.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {number} Returns the index of the found element, else `-1`.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36, 'blocked': false },
+     *   { 'name': 'fred',    'age': 40, 'blocked': true },
+     *   { 'name': 'pebbles', 'age': 1,  'blocked': false }
+     * ];
+     *
+     * _.findIndex(characters, function(chr) {
+     *   return chr.age < 20;
+     * });
+     * // => 2
+     *
+     * // using "_.where" callback shorthand
+     * _.findIndex(characters, { 'age': 36 });
+     * // => 0
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findIndex(characters, 'blocked');
+     * // => 1
+     */
+    function findIndex(array, callback, thisArg) {
+      var index = -1,
+          length = array ? array.length : 0;
+
+      callback = lodash.createCallback(callback, thisArg, 3);
+      while (++index < length) {
+        if (callback(array[index], index, array)) {
+          return index;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * This method is like `_.findIndex` except that it iterates over elements
+     * of a `collection` from right to left.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {number} Returns the index of the found element, else `-1`.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36, 'blocked': true },
+     *   { 'name': 'fred',    'age': 40, 'blocked': false },
+     *   { 'name': 'pebbles', 'age': 1,  'blocked': true }
+     * ];
+     *
+     * _.findLastIndex(characters, function(chr) {
+     *   return chr.age > 30;
+     * });
+     * // => 1
+     *
+     * // using "_.where" callback shorthand
+     * _.findLastIndex(characters, { 'age': 36 });
+     * // => 0
+     *
+     * // using "_.pluck" callback shorthand
+     * _.findLastIndex(characters, 'blocked');
+     * // => 2
+     */
+    function findLastIndex(array, callback, thisArg) {
+      var length = array ? array.length : 0;
+      callback = lodash.createCallback(callback, thisArg, 3);
+      while (length--) {
+        if (callback(array[length], length, array)) {
+          return length;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * Gets the first element or first `n` elements of an array. If a callback
+     * is provided elements at the beginning of the array are returned as long
+     * as the callback returns truey. The callback is bound to `thisArg` and
+     * invoked with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias head, take
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback] The function called
+     *  per element or the number of elements to return. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the first element(s) of `array`.
+     * @example
+     *
+     * _.first([1, 2, 3]);
+     * // => 1
+     *
+     * _.first([1, 2, 3], 2);
+     * // => [1, 2]
+     *
+     * _.first([1, 2, 3], function(num) {
+     *   return num < 3;
+     * });
+     * // => [1, 2]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': false, 'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.first(characters, 'blocked');
+     * // => [{ 'name': 'barney', 'blocked': true, 'employer': 'slate' }]
+     *
+     * // using "_.where" callback shorthand
+     * _.pluck(_.first(characters, { 'employer': 'slate' }), 'name');
+     * // => ['barney', 'fred']
+     */
+    function first(array, callback, thisArg) {
+      var n = 0,
+          length = array ? array.length : 0;
+
+      if (typeof callback != 'number' && callback != null) {
+        var index = -1;
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (++index < length && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = callback;
+        if (n == null || thisArg) {
+          return array ? array[0] : undefined;
+        }
+      }
+      return slice(array, 0, nativeMin(nativeMax(0, n), length));
+    }
+
+    /**
+     * Flattens a nested array (the nesting can be to any depth). If `isShallow`
+     * is truey, the array will only be flattened a single level. If a callback
+     * is provided each element of the array is passed through the callback before
+     * flattening. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to flatten.
+     * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new flattened array.
+     * @example
+     *
+     * _.flatten([1, [2], [3, [[4]]]]);
+     * // => [1, 2, 3, 4];
+     *
+     * _.flatten([1, [2], [3, [[4]]]], true);
+     * // => [1, 2, 3, [[4]]];
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 30, 'pets': ['hoppy'] },
+     *   { 'name': 'fred',   'age': 40, 'pets': ['baby puss', 'dino'] }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.flatten(characters, 'pets');
+     * // => ['hoppy', 'baby puss', 'dino']
+     */
+    function flatten(array, isShallow, callback, thisArg) {
+      // juggle arguments
+      if (typeof isShallow != 'boolean' && isShallow != null) {
+        thisArg = callback;
+        callback = (typeof isShallow != 'function' && thisArg && thisArg[isShallow] === array) ? null : isShallow;
+        isShallow = false;
+      }
+      if (callback != null) {
+        array = map(array, callback, thisArg);
+      }
+      return baseFlatten(array, isShallow);
+    }
+
+    /**
+     * Gets the index at which the first occurrence of `value` is found using
+     * strict equality for comparisons, i.e. `===`. If the array is already sorted
+     * providing `true` for `fromIndex` will run a faster binary search.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {*} value The value to search for.
+     * @param {boolean|number} [fromIndex=0] The index to search from or `true`
+     *  to perform a binary search on a sorted array.
+     * @returns {number} Returns the index of the matched value or `-1`.
+     * @example
+     *
+     * _.indexOf([1, 2, 3, 1, 2, 3], 2);
+     * // => 1
+     *
+     * _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
+     * // => 4
+     *
+     * _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
+     * // => 2
+     */
+    function indexOf(array, value, fromIndex) {
+      if (typeof fromIndex == 'number') {
+        var length = array ? array.length : 0;
+        fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0);
+      } else if (fromIndex) {
+        var index = sortedIndex(array, value);
+        return array[index] === value ? index : -1;
+      }
+      return baseIndexOf(array, value, fromIndex);
+    }
+
+    /**
+     * Gets all but the last element or last `n` elements of an array. If a
+     * callback is provided elements at the end of the array are excluded from
+     * the result as long as the callback returns truey. The callback is bound
+     * to `thisArg` and invoked with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback=1] The function called
+     *  per element or the number of elements to exclude. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a slice of `array`.
+     * @example
+     *
+     * _.initial([1, 2, 3]);
+     * // => [1, 2]
+     *
+     * _.initial([1, 2, 3], 2);
+     * // => [1]
+     *
+     * _.initial([1, 2, 3], function(num) {
+     *   return num > 1;
+     * });
+     * // => [1]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': false, 'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.initial(characters, 'blocked');
+     * // => [{ 'name': 'barney',  'blocked': false, 'employer': 'slate' }]
+     *
+     * // using "_.where" callback shorthand
+     * _.pluck(_.initial(characters, { 'employer': 'na' }), 'name');
+     * // => ['barney', 'fred']
+     */
+    function initial(array, callback, thisArg) {
+      var n = 0,
+          length = array ? array.length : 0;
+
+      if (typeof callback != 'number' && callback != null) {
+        var index = length;
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (index-- && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = (callback == null || thisArg) ? 1 : callback || n;
+      }
+      return slice(array, 0, nativeMin(nativeMax(0, length - n), length));
+    }
+
+    /**
+     * Creates an array of unique values present in all provided arrays using
+     * strict equality for comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {...Array} [array] The arrays to inspect.
+     * @returns {Array} Returns an array of shared values.
+     * @example
+     *
+     * _.intersection([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+     * // => [1, 2]
+     */
+    function intersection() {
+      var args = [],
+          argsIndex = -1,
+          argsLength = arguments.length,
+          caches = getArray(),
+          indexOf = getIndexOf(),
+          trustIndexOf = indexOf === baseIndexOf,
+          seen = getArray();
+
+      while (++argsIndex < argsLength) {
+        var value = arguments[argsIndex];
+        if (isArray(value) || isArguments(value)) {
+          args.push(value);
+          caches.push(trustIndexOf && value.length >= largeArraySize &&
+            createCache(argsIndex ? args[argsIndex] : seen));
+        }
+      }
+      var array = args[0],
+          index = -1,
+          length = array ? array.length : 0,
+          result = [];
+
+      outer:
+      while (++index < length) {
+        var cache = caches[0];
+        value = array[index];
+
+        if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
+          argsIndex = argsLength;
+          (cache || seen).push(value);
+          while (--argsIndex) {
+            cache = caches[argsIndex];
+            if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
+              continue outer;
+            }
+          }
+          result.push(value);
+        }
+      }
+      while (argsLength--) {
+        cache = caches[argsLength];
+        if (cache) {
+          releaseObject(cache);
+        }
+      }
+      releaseArray(caches);
+      releaseArray(seen);
+      return result;
+    }
+
+    /**
+     * Gets the last element or last `n` elements of an array. If a callback is
+     * provided elements at the end of the array are returned as long as the
+     * callback returns truey. The callback is bound to `thisArg` and invoked
+     * with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback] The function called
+     *  per element or the number of elements to return. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {*} Returns the last element(s) of `array`.
+     * @example
+     *
+     * _.last([1, 2, 3]);
+     * // => 3
+     *
+     * _.last([1, 2, 3], 2);
+     * // => [2, 3]
+     *
+     * _.last([1, 2, 3], function(num) {
+     *   return num > 1;
+     * });
+     * // => [2, 3]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': false, 'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.pluck(_.last(characters, 'blocked'), 'name');
+     * // => ['fred', 'pebbles']
+     *
+     * // using "_.where" callback shorthand
+     * _.last(characters, { 'employer': 'na' });
+     * // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+     */
+    function last(array, callback, thisArg) {
+      var n = 0,
+          length = array ? array.length : 0;
+
+      if (typeof callback != 'number' && callback != null) {
+        var index = length;
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (index-- && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = callback;
+        if (n == null || thisArg) {
+          return array ? array[length - 1] : undefined;
+        }
+      }
+      return slice(array, nativeMax(0, length - n));
+    }
+
+    /**
+     * Gets the index at which the last occurrence of `value` is found using strict
+     * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
+     * as the offset from the end of the collection.
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to search.
+     * @param {*} value The value to search for.
+     * @param {number} [fromIndex=array.length-1] The index to search from.
+     * @returns {number} Returns the index of the matched value or `-1`.
+     * @example
+     *
+     * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
+     * // => 4
+     *
+     * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
+     * // => 1
+     */
+    function lastIndexOf(array, value, fromIndex) {
+      var index = array ? array.length : 0;
+      if (typeof fromIndex == 'number') {
+        index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
+      }
+      while (index--) {
+        if (array[index] === value) {
+          return index;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * Removes all provided values from the given array using strict equality for
+     * comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to modify.
+     * @param {...*} [value] The values to remove.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = [1, 2, 3, 1, 2, 3];
+     * _.pull(array, 2, 3);
+     * console.log(array);
+     * // => [1, 1]
+     */
+    function pull(array) {
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = args.length,
+          length = array ? array.length : 0;
+
+      while (++argsIndex < argsLength) {
+        var index = -1,
+            value = args[argsIndex];
+        while (++index < length) {
+          if (array[index] === value) {
+            splice.call(array, index--, 1);
+            length--;
+          }
+        }
+      }
+      return array;
+    }
+
+    /**
+     * Creates an array of numbers (positive and/or negative) progressing from
+     * `start` up to but not including `end`. If `start` is less than `stop` a
+     * zero-length range is created unless a negative `step` is specified.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {number} [start=0] The start of the range.
+     * @param {number} end The end of the range.
+     * @param {number} [step=1] The value to increment or decrement by.
+     * @returns {Array} Returns a new range array.
+     * @example
+     *
+     * _.range(4);
+     * // => [0, 1, 2, 3]
+     *
+     * _.range(1, 5);
+     * // => [1, 2, 3, 4]
+     *
+     * _.range(0, 20, 5);
+     * // => [0, 5, 10, 15]
+     *
+     * _.range(0, -4, -1);
+     * // => [0, -1, -2, -3]
+     *
+     * _.range(1, 4, 0);
+     * // => [1, 1, 1]
+     *
+     * _.range(0);
+     * // => []
+     */
+    function range(start, end, step) {
+      start = +start || 0;
+      step = typeof step == 'number' ? step : (+step || 1);
+
+      if (end == null) {
+        end = start;
+        start = 0;
+      }
+      // use `Array(length)` so engines like Chakra and V8 avoid slower modes
+      // http://youtu.be/XAqIpGU8ZZk#t=17m25s
+      var index = -1,
+          length = nativeMax(0, ceil((end - start) / (step || 1))),
+          result = Array(length);
+
+      while (++index < length) {
+        result[index] = start;
+        start += step;
+      }
+      return result;
+    }
+
+    /**
+     * Removes all elements from an array that the callback returns truey for
+     * and returns an array of removed elements. The callback is bound to `thisArg`
+     * and invoked with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to modify.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a new array of removed elements.
+     * @example
+     *
+     * var array = [1, 2, 3, 4, 5, 6];
+     * var evens = _.remove(array, function(num) { return num % 2 == 0; });
+     *
+     * console.log(array);
+     * // => [1, 3, 5]
+     *
+     * console.log(evens);
+     * // => [2, 4, 6]
+     */
+    function remove(array, callback, thisArg) {
+      var index = -1,
+          length = array ? array.length : 0,
+          result = [];
+
+      callback = lodash.createCallback(callback, thisArg, 3);
+      while (++index < length) {
+        var value = array[index];
+        if (callback(value, index, array)) {
+          result.push(value);
+          splice.call(array, index--, 1);
+          length--;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The opposite of `_.initial` this method gets all but the first element or
+     * first `n` elements of an array. If a callback function is provided elements
+     * at the beginning of the array are excluded from the result as long as the
+     * callback returns truey. The callback is bound to `thisArg` and invoked
+     * with three arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias drop, tail
+     * @category Arrays
+     * @param {Array} array The array to query.
+     * @param {Function|Object|number|string} [callback=1] The function called
+     *  per element or the number of elements to exclude. If a property name or
+     *  object is provided it will be used to create a "_.pluck" or "_.where"
+     *  style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a slice of `array`.
+     * @example
+     *
+     * _.rest([1, 2, 3]);
+     * // => [2, 3]
+     *
+     * _.rest([1, 2, 3], 2);
+     * // => [3]
+     *
+     * _.rest([1, 2, 3], function(num) {
+     *   return num < 3;
+     * });
+     * // => [3]
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'blocked': true,  'employer': 'slate' },
+     *   { 'name': 'fred',    'blocked': false,  'employer': 'slate' },
+     *   { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+     * ];
+     *
+     * // using "_.pluck" callback shorthand
+     * _.pluck(_.rest(characters, 'blocked'), 'name');
+     * // => ['fred', 'pebbles']
+     *
+     * // using "_.where" callback shorthand
+     * _.rest(characters, { 'employer': 'slate' });
+     * // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+     */
+    function rest(array, callback, thisArg) {
+      if (typeof callback != 'number' && callback != null) {
+        var n = 0,
+            index = -1,
+            length = array ? array.length : 0;
+
+        callback = lodash.createCallback(callback, thisArg, 3);
+        while (++index < length && callback(array[index], index, array)) {
+          n++;
+        }
+      } else {
+        n = (callback == null || thisArg) ? 1 : nativeMax(0, callback);
+      }
+      return slice(array, n);
+    }
+
+    /**
+     * Uses a binary search to determine the smallest index at which a value
+     * should be inserted into a given sorted array in order to maintain the sort
+     * order of the array. If a callback is provided it will be executed for
+     * `value` and each element of `array` to compute their sort ranking. The
+     * callback is bound to `thisArg` and invoked with one argument; (value).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to inspect.
+     * @param {*} value The value to evaluate.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     * @example
+     *
+     * _.sortedIndex([20, 30, 50], 40);
+     * // => 2
+     *
+     * // using "_.pluck" callback shorthand
+     * _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
+     * // => 2
+     *
+     * var dict = {
+     *   'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 }
+     * };
+     *
+     * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+     *   return dict.wordToNumber[word];
+     * });
+     * // => 2
+     *
+     * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+     *   return this.wordToNumber[word];
+     * }, dict);
+     * // => 2
+     */
+    function sortedIndex(array, value, callback, thisArg) {
+      var low = 0,
+          high = array ? array.length : low;
+
+      // explicitly reference `identity` for better inlining in Firefox
+      callback = callback ? lodash.createCallback(callback, thisArg, 1) : identity;
+      value = callback(value);
+
+      while (low < high) {
+        var mid = (low + high) >>> 1;
+        (callback(array[mid]) < value)
+          ? low = mid + 1
+          : high = mid;
+      }
+      return low;
+    }
+
+    /**
+     * Creates an array of unique values, in order, of the provided arrays using
+     * strict equality for comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {...Array} [array] The arrays to inspect.
+     * @returns {Array} Returns an array of combined values.
+     * @example
+     *
+     * _.union([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+     * // => [1, 2, 3, 5, 4]
+     */
+    function union() {
+      return baseUniq(baseFlatten(arguments, true, true));
+    }
+
+    /**
+     * Creates a duplicate-value-free version of an array using strict equality
+     * for comparisons, i.e. `===`. If the array is sorted, providing
+     * `true` for `isSorted` will use a faster algorithm. If a callback is provided
+     * each element of `array` is passed through the callback before uniqueness
+     * is computed. The callback is bound to `thisArg` and invoked with three
+     * arguments; (value, index, array).
+     *
+     * If a property name is provided for `callback` the created "_.pluck" style
+     * callback will return the property value of the given element.
+     *
+     * If an object is provided for `callback` the created "_.where" style callback
+     * will return `true` for elements that have the properties of the given object,
+     * else `false`.
+     *
+     * @static
+     * @memberOf _
+     * @alias unique
+     * @category Arrays
+     * @param {Array} array The array to process.
+     * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+     * @param {Function|Object|string} [callback=identity] The function called
+     *  per iteration. If a property name or object is provided it will be used
+     *  to create a "_.pluck" or "_.where" style callback, respectively.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns a duplicate-value-free array.
+     * @example
+     *
+     * _.uniq([1, 2, 1, 3, 1]);
+     * // => [1, 2, 3]
+     *
+     * _.uniq([1, 1, 2, 2, 3], true);
+     * // => [1, 2, 3]
+     *
+     * _.uniq(['A', 'b', 'C', 'a', 'B', 'c'], function(letter) { return letter.toLowerCase(); });
+     * // => ['A', 'b', 'C']
+     *
+     * _.uniq([1, 2.5, 3, 1.5, 2, 3.5], function(num) { return this.floor(num); }, Math);
+     * // => [1, 2.5, 3]
+     *
+     * // using "_.pluck" callback shorthand
+     * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
+     * // => [{ 'x': 1 }, { 'x': 2 }]
+     */
+    function uniq(array, isSorted, callback, thisArg) {
+      // juggle arguments
+      if (typeof isSorted != 'boolean' && isSorted != null) {
+        thisArg = callback;
+        callback = (typeof isSorted != 'function' && thisArg && thisArg[isSorted] === array) ? null : isSorted;
+        isSorted = false;
+      }
+      if (callback != null) {
+        callback = lodash.createCallback(callback, thisArg, 3);
+      }
+      return baseUniq(array, isSorted, callback);
+    }
+
+    /**
+     * Creates an array excluding all provided values using strict equality for
+     * comparisons, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {Array} array The array to filter.
+     * @param {...*} [value] The values to exclude.
+     * @returns {Array} Returns a new array of filtered values.
+     * @example
+     *
+     * _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
+     * // => [2, 3, 4]
+     */
+    function without(array) {
+      return baseDifference(array, slice(arguments, 1));
+    }
+
+    /**
+     * Creates an array that is the symmetric difference of the provided arrays.
+     * See http://en.wikipedia.org/wiki/Symmetric_difference.
+     *
+     * @static
+     * @memberOf _
+     * @category Arrays
+     * @param {...Array} [array] The arrays to inspect.
+     * @returns {Array} Returns an array of values.
+     * @example
+     *
+     * _.xor([1, 2, 3], [5, 2, 1, 4]);
+     * // => [3, 5, 4]
+     *
+     * _.xor([1, 2, 5], [2, 3, 5], [3, 4, 5]);
+     * // => [1, 4, 5]
+     */
+    function xor() {
+      var index = -1,
+          length = arguments.length;
+
+      while (++index < length) {
+        var array = arguments[index];
+        if (isArray(array) || isArguments(array)) {
+          var result = result
+            ? baseUniq(baseDifference(result, array).concat(baseDifference(array, result)))
+            : array;
+        }
+      }
+      return result || [];
+    }
+
+    /**
+     * Creates an array of grouped elements, the first of which contains the first
+     * elements of the given arrays, the second of which contains the second
+     * elements of the given arrays, and so on.
+     *
+     * @static
+     * @memberOf _
+     * @alias unzip
+     * @category Arrays
+     * @param {...Array} [array] Arrays to process.
+     * @returns {Array} Returns a new array of grouped elements.
+     * @example
+     *
+     * _.zip(['fred', 'barney'], [30, 40], [true, false]);
+     * // => [['fred', 30, true], ['barney', 40, false]]
+     */
+    function zip() {
+      var array = arguments.length > 1 ? arguments : arguments[0],
+          index = -1,
+          length = array ? max(pluck(array, 'length')) : 0,
+          result = Array(length < 0 ? 0 : length);
+
+      while (++index < length) {
+        result[index] = pluck(array, index);
+      }
+      return result;
+    }
+
+    /**
+     * Creates an object composed from arrays of `keys` and `values`. Provide
+     * either a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`
+     * or two arrays, one of `keys` and one of corresponding `values`.
+     *
+     * @static
+     * @memberOf _
+     * @alias object
+     * @category Arrays
+     * @param {Array} keys The array of keys.
+     * @param {Array} [values=[]] The array of values.
+     * @returns {Object} Returns an object composed of the given keys and
+     *  corresponding values.
+     * @example
+     *
+     * _.zipObject(['fred', 'barney'], [30, 40]);
+     * // => { 'fred': 30, 'barney': 40 }
+     */
+    function zipObject(keys, values) {
+      var index = -1,
+          length = keys ? keys.length : 0,
+          result = {};
+
+      if (!values && length && !isArray(keys[0])) {
+        values = [];
+      }
+      while (++index < length) {
+        var key = keys[index];
+        if (values) {
+          result[key] = values[index];
+        } else if (key) {
+          result[key[0]] = key[1];
+        }
+      }
+      return result;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a function that executes `func`, with  the `this` binding and
+     * arguments of the created function, only after being called `n` times.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {number} n The number of times the function must be called before
+     *  `func` is executed.
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * var saves = ['profile', 'settings'];
+     *
+     * var done = _.after(saves.length, function() {
+     *   console.log('Done saving!');
+     * });
+     *
+     * _.forEach(saves, function(type) {
+     *   asyncSave({ 'type': type, 'complete': done });
+     * });
+     * // => logs 'Done saving!', after all saves have completed
+     */
+    function after(n, func) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      return function() {
+        if (--n < 1) {
+          return func.apply(this, arguments);
+        }
+      };
+    }
+
+    /**
+     * Creates a function that, when called, invokes `func` with the `this`
+     * binding of `thisArg` and prepends any additional `bind` arguments to those
+     * provided to the bound function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to bind.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new bound function.
+     * @example
+     *
+     * var func = function(greeting) {
+     *   return greeting + ' ' + this.name;
+     * };
+     *
+     * func = _.bind(func, { 'name': 'fred' }, 'hi');
+     * func();
+     * // => 'hi fred'
+     */
+    function bind(func, thisArg) {
+      return arguments.length > 2
+        ? createWrapper(func, 17, slice(arguments, 2), null, thisArg)
+        : createWrapper(func, 1, null, null, thisArg);
+    }
+
+    /**
+     * Binds methods of an object to the object itself, overwriting the existing
+     * method. Method names may be specified as individual arguments or as arrays
+     * of method names. If no method names are provided all the function properties
+     * of `object` will be bound.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Object} object The object to bind and assign the bound methods to.
+     * @param {...string} [methodName] The object method names to
+     *  bind, specified as individual method names or arrays of method names.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var view = {
+     *   'label': 'docs',
+     *   'onClick': function() { console.log('clicked ' + this.label); }
+     * };
+     *
+     * _.bindAll(view);
+     * jQuery('#docs').on('click', view.onClick);
+     * // => logs 'clicked docs', when the button is clicked
+     */
+    function bindAll(object) {
+      var funcs = arguments.length > 1 ? baseFlatten(arguments, true, false, 1) : functions(object),
+          index = -1,
+          length = funcs.length;
+
+      while (++index < length) {
+        var key = funcs[index];
+        object[key] = createWrapper(object[key], 1, null, null, object);
+      }
+      return object;
+    }
+
+    /**
+     * Creates a function that, when called, invokes the method at `object[key]`
+     * and prepends any additional `bindKey` arguments to those provided to the bound
+     * function. This method differs from `_.bind` by allowing bound functions to
+     * reference methods that will be redefined or don't yet exist.
+     * See http://michaux.ca/articles/lazy-function-definition-pattern.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Object} object The object the method belongs to.
+     * @param {string} key The key of the method.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new bound function.
+     * @example
+     *
+     * var object = {
+     *   'name': 'fred',
+     *   'greet': function(greeting) {
+     *     return greeting + ' ' + this.name;
+     *   }
+     * };
+     *
+     * var func = _.bindKey(object, 'greet', 'hi');
+     * func();
+     * // => 'hi fred'
+     *
+     * object.greet = function(greeting) {
+     *   return greeting + 'ya ' + this.name + '!';
+     * };
+     *
+     * func();
+     * // => 'hiya fred!'
+     */
+    function bindKey(object, key) {
+      return arguments.length > 2
+        ? createWrapper(key, 19, slice(arguments, 2), null, object)
+        : createWrapper(key, 3, null, null, object);
+    }
+
+    /**
+     * Creates a function that is the composition of the provided functions,
+     * where each function consumes the return value of the function that follows.
+     * For example, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.
+     * Each function is executed with the `this` binding of the composed function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {...Function} [func] Functions to compose.
+     * @returns {Function} Returns the new composed function.
+     * @example
+     *
+     * var realNameMap = {
+     *   'pebbles': 'penelope'
+     * };
+     *
+     * var format = function(name) {
+     *   name = realNameMap[name.toLowerCase()] || name;
+     *   return name.charAt(0).toUpperCase() + name.slice(1).toLowerCase();
+     * };
+     *
+     * var greet = function(formatted) {
+     *   return 'Hiya ' + formatted + '!';
+     * };
+     *
+     * var welcome = _.compose(greet, format);
+     * welcome('pebbles');
+     * // => 'Hiya Penelope!'
+     */
+    function compose() {
+      var funcs = arguments,
+          length = funcs.length;
+
+      while (length--) {
+        if (!isFunction(funcs[length])) {
+          throw new TypeError;
+        }
+      }
+      return function() {
+        var args = arguments,
+            length = funcs.length;
+
+        while (length--) {
+          args = [funcs[length].apply(this, args)];
+        }
+        return args[0];
+      };
+    }
+
+    /**
+     * Creates a function which accepts one or more arguments of `func` that when
+     * invoked either executes `func` returning its result, if all `func` arguments
+     * have been provided, or returns a function that accepts one or more of the
+     * remaining `func` arguments, and so on. The arity of `func` can be specified
+     * if `func.length` is not sufficient.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to curry.
+     * @param {number} [arity=func.length] The arity of `func`.
+     * @returns {Function} Returns the new curried function.
+     * @example
+     *
+     * var curried = _.curry(function(a, b, c) {
+     *   console.log(a + b + c);
+     * });
+     *
+     * curried(1)(2)(3);
+     * // => 6
+     *
+     * curried(1, 2)(3);
+     * // => 6
+     *
+     * curried(1, 2, 3);
+     * // => 6
+     */
+    function curry(func, arity) {
+      arity = typeof arity == 'number' ? arity : (+arity || func.length);
+      return createWrapper(func, 4, null, null, null, arity);
+    }
+
+    /**
+     * Creates a function that will delay the execution of `func` until after
+     * `wait` milliseconds have elapsed since the last time it was invoked.
+     * Provide an options object to indicate that `func` should be invoked on
+     * the leading and/or trailing edge of the `wait` timeout. Subsequent calls
+     * to the debounced function will return the result of the last `func` call.
+     *
+     * Note: If `leading` and `trailing` options are `true` `func` will be called
+     * on the trailing edge of the timeout only if the the debounced function is
+     * invoked more than once during the `wait` timeout.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to debounce.
+     * @param {number} wait The number of milliseconds to delay.
+     * @param {Object} [options] The options object.
+     * @param {boolean} [options.leading=false] Specify execution on the leading edge of the timeout.
+     * @param {number} [options.maxWait] The maximum time `func` is allowed to be delayed before it's called.
+     * @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+     * @returns {Function} Returns the new debounced function.
+     * @example
+     *
+     * // avoid costly calculations while the window size is in flux
+     * var lazyLayout = _.debounce(calculateLayout, 150);
+     * jQuery(window).on('resize', lazyLayout);
+     *
+     * // execute `sendMail` when the click event is fired, debouncing subsequent calls
+     * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
+     *   'leading': true,
+     *   'trailing': false
+     * });
+     *
+     * // ensure `batchLog` is executed once after 1 second of debounced calls
+     * var source = new EventSource('/stream');
+     * source.addEventListener('message', _.debounce(batchLog, 250, {
+     *   'maxWait': 1000
+     * }, false);
+     */
+    function debounce(func, wait, options) {
+      var args,
+          maxTimeoutId,
+          result,
+          stamp,
+          thisArg,
+          timeoutId,
+          trailingCall,
+          lastCalled = 0,
+          maxWait = false,
+          trailing = true;
+
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      wait = nativeMax(0, wait) || 0;
+      if (options === true) {
+        var leading = true;
+        trailing = false;
+      } else if (isObject(options)) {
+        leading = options.leading;
+        maxWait = 'maxWait' in options && (nativeMax(wait, options.maxWait) || 0);
+        trailing = 'trailing' in options ? options.trailing : trailing;
+      }
+      var delayed = function() {
+        var remaining = wait - (now() - stamp);
+        if (remaining <= 0) {
+          if (maxTimeoutId) {
+            clearTimeout(maxTimeoutId);
+          }
+          var isCalled = trailingCall;
+          maxTimeoutId = timeoutId = trailingCall = undefined;
+          if (isCalled) {
+            lastCalled = now();
+            result = func.apply(thisArg, args);
+            if (!timeoutId && !maxTimeoutId) {
+              args = thisArg = null;
+            }
+          }
+        } else {
+          timeoutId = setTimeout(delayed, remaining);
+        }
+      };
+
+      var maxDelayed = function() {
+        if (timeoutId) {
+          clearTimeout(timeoutId);
+        }
+        maxTimeoutId = timeoutId = trailingCall = undefined;
+        if (trailing || (maxWait !== wait)) {
+          lastCalled = now();
+          result = func.apply(thisArg, args);
+          if (!timeoutId && !maxTimeoutId) {
+            args = thisArg = null;
+          }
+        }
+      };
+
+      return function() {
+        args = arguments;
+        stamp = now();
+        thisArg = this;
+        trailingCall = trailing && (timeoutId || !leading);
+
+        if (maxWait === false) {
+          var leadingCall = leading && !timeoutId;
+        } else {
+          if (!maxTimeoutId && !leading) {
+            lastCalled = stamp;
+          }
+          var remaining = maxWait - (stamp - lastCalled),
+              isCalled = remaining <= 0;
+
+          if (isCalled) {
+            if (maxTimeoutId) {
+              maxTimeoutId = clearTimeout(maxTimeoutId);
+            }
+            lastCalled = stamp;
+            result = func.apply(thisArg, args);
+          }
+          else if (!maxTimeoutId) {
+            maxTimeoutId = setTimeout(maxDelayed, remaining);
+          }
+        }
+        if (isCalled && timeoutId) {
+          timeoutId = clearTimeout(timeoutId);
+        }
+        else if (!timeoutId && wait !== maxWait) {
+          timeoutId = setTimeout(delayed, wait);
+        }
+        if (leadingCall) {
+          isCalled = true;
+          result = func.apply(thisArg, args);
+        }
+        if (isCalled && !timeoutId && !maxTimeoutId) {
+          args = thisArg = null;
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Defers executing the `func` function until the current call stack has cleared.
+     * Additional arguments will be provided to `func` when it is invoked.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to defer.
+     * @param {...*} [arg] Arguments to invoke the function with.
+     * @returns {number} Returns the timer id.
+     * @example
+     *
+     * _.defer(function(text) { console.log(text); }, 'deferred');
+     * // logs 'deferred' after one or more milliseconds
+     */
+    function defer(func) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      var args = slice(arguments, 1);
+      return setTimeout(function() { func.apply(undefined, args); }, 1);
+    }
+
+    /**
+     * Executes the `func` function after `wait` milliseconds. Additional arguments
+     * will be provided to `func` when it is invoked.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to delay.
+     * @param {number} wait The number of milliseconds to delay execution.
+     * @param {...*} [arg] Arguments to invoke the function with.
+     * @returns {number} Returns the timer id.
+     * @example
+     *
+     * _.delay(function(text) { console.log(text); }, 1000, 'later');
+     * // => logs 'later' after one second
+     */
+    function delay(func, wait) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      var args = slice(arguments, 2);
+      return setTimeout(function() { func.apply(undefined, args); }, wait);
+    }
+
+    /**
+     * Creates a function that memoizes the result of `func`. If `resolver` is
+     * provided it will be used to determine the cache key for storing the result
+     * based on the arguments provided to the memoized function. By default, the
+     * first argument provided to the memoized function is used as the cache key.
+     * The `func` is executed with the `this` binding of the memoized function.
+     * The result cache is exposed as the `cache` property on the memoized function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to have its output memoized.
+     * @param {Function} [resolver] A function used to resolve the cache key.
+     * @returns {Function} Returns the new memoizing function.
+     * @example
+     *
+     * var fibonacci = _.memoize(function(n) {
+     *   return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
+     * });
+     *
+     * fibonacci(9)
+     * // => 34
+     *
+     * var data = {
+     *   'fred': { 'name': 'fred', 'age': 40 },
+     *   'pebbles': { 'name': 'pebbles', 'age': 1 }
+     * };
+     *
+     * // modifying the result cache
+     * var get = _.memoize(function(name) { return data[name]; }, _.identity);
+     * get('pebbles');
+     * // => { 'name': 'pebbles', 'age': 1 }
+     *
+     * get.cache.pebbles.name = 'penelope';
+     * get('pebbles');
+     * // => { 'name': 'penelope', 'age': 1 }
+     */
+    function memoize(func, resolver) {
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      var memoized = function() {
+        var cache = memoized.cache,
+            key = resolver ? resolver.apply(this, arguments) : keyPrefix + arguments[0];
+
+        return hasOwnProperty.call(cache, key)
+          ? cache[key]
+          : (cache[key] = func.apply(this, arguments));
+      }
+      memoized.cache = {};
+      return memoized;
+    }
+
+    /**
+     * Creates a function that is restricted to execute `func` once. Repeat calls to
+     * the function will return the value of the first call. The `func` is executed
+     * with the `this` binding of the created function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * var initialize = _.once(createApplication);
+     * initialize();
+     * initialize();
+     * // `initialize` executes `createApplication` once
+     */
+    function once(func) {
+      var ran,
+          result;
+
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      return function() {
+        if (ran) {
+          return result;
+        }
+        ran = true;
+        result = func.apply(this, arguments);
+
+        // clear the `func` variable so the function may be garbage collected
+        func = null;
+        return result;
+      };
+    }
+
+    /**
+     * Creates a function that, when called, invokes `func` with any additional
+     * `partial` arguments prepended to those provided to the new function. This
+     * method is similar to `_.bind` except it does **not** alter the `this` binding.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to partially apply arguments to.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new partially applied function.
+     * @example
+     *
+     * var greet = function(greeting, name) { return greeting + ' ' + name; };
+     * var hi = _.partial(greet, 'hi');
+     * hi('fred');
+     * // => 'hi fred'
+     */
+    function partial(func) {
+      return createWrapper(func, 16, slice(arguments, 1));
+    }
+
+    /**
+     * This method is like `_.partial` except that `partial` arguments are
+     * appended to those provided to the new function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to partially apply arguments to.
+     * @param {...*} [arg] Arguments to be partially applied.
+     * @returns {Function} Returns the new partially applied function.
+     * @example
+     *
+     * var defaultsDeep = _.partialRight(_.merge, _.defaults);
+     *
+     * var options = {
+     *   'variable': 'data',
+     *   'imports': { 'jq': $ }
+     * };
+     *
+     * defaultsDeep(options, _.templateSettings);
+     *
+     * options.variable
+     * // => 'data'
+     *
+     * options.imports
+     * // => { '_': _, 'jq': $ }
+     */
+    function partialRight(func) {
+      return createWrapper(func, 32, null, slice(arguments, 1));
+    }
+
+    /**
+     * Creates a function that, when executed, will only call the `func` function
+     * at most once per every `wait` milliseconds. Provide an options object to
+     * indicate that `func` should be invoked on the leading and/or trailing edge
+     * of the `wait` timeout. Subsequent calls to the throttled function will
+     * return the result of the last `func` call.
+     *
+     * Note: If `leading` and `trailing` options are `true` `func` will be called
+     * on the trailing edge of the timeout only if the the throttled function is
+     * invoked more than once during the `wait` timeout.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {Function} func The function to throttle.
+     * @param {number} wait The number of milliseconds to throttle executions to.
+     * @param {Object} [options] The options object.
+     * @param {boolean} [options.leading=true] Specify execution on the leading edge of the timeout.
+     * @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+     * @returns {Function} Returns the new throttled function.
+     * @example
+     *
+     * // avoid excessively updating the position while scrolling
+     * var throttled = _.throttle(updatePosition, 100);
+     * jQuery(window).on('scroll', throttled);
+     *
+     * // execute `renewToken` when the click event is fired, but not more than once every 5 minutes
+     * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
+     *   'trailing': false
+     * }));
+     */
+    function throttle(func, wait, options) {
+      var leading = true,
+          trailing = true;
+
+      if (!isFunction(func)) {
+        throw new TypeError;
+      }
+      if (options === false) {
+        leading = false;
+      } else if (isObject(options)) {
+        leading = 'leading' in options ? options.leading : leading;
+        trailing = 'trailing' in options ? options.trailing : trailing;
+      }
+      debounceOptions.leading = leading;
+      debounceOptions.maxWait = wait;
+      debounceOptions.trailing = trailing;
+
+      return debounce(func, wait, debounceOptions);
+    }
+
+    /**
+     * Creates a function that provides `value` to the wrapper function as its
+     * first argument. Additional arguments provided to the function are appended
+     * to those provided to the wrapper function. The wrapper is executed with
+     * the `this` binding of the created function.
+     *
+     * @static
+     * @memberOf _
+     * @category Functions
+     * @param {*} value The value to wrap.
+     * @param {Function} wrapper The wrapper function.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var p = _.wrap(_.escape, function(func, text) {
+     *   return '<p>' + func(text) + '</p>';
+     * });
+     *
+     * p('Fred, Wilma, & Pebbles');
+     * // => '<p>Fred, Wilma, &amp; Pebbles</p>'
+     */
+    function wrap(value, wrapper) {
+      return createWrapper(wrapper, 16, [value]);
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a function that returns `value`.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {*} value The value to return from the new function.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * var getter = _.constant(object);
+     * getter() === object;
+     * // => true
+     */
+    function constant(value) {
+      return function() {
+        return value;
+      };
+    }
+
+    /**
+     * Produces a callback bound to an optional `thisArg`. If `func` is a property
+     * name the created callback will return the property value for a given element.
+     * If `func` is an object the created callback will return `true` for elements
+     * that contain the equivalent object properties, otherwise it will return `false`.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {*} [func=identity] The value to convert to a callback.
+     * @param {*} [thisArg] The `this` binding of the created callback.
+     * @param {number} [argCount] The number of arguments the callback accepts.
+     * @returns {Function} Returns a callback function.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // wrap to create custom callback shorthands
+     * _.createCallback = _.wrap(_.createCallback, function(func, callback, thisArg) {
+     *   var match = /^(.+?)__([gl]t)(.+)$/.exec(callback);
+     *   return !match ? func(callback, thisArg) : function(object) {
+     *     return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
+     *   };
+     * });
+     *
+     * _.filter(characters, 'age__gt38');
+     * // => [{ 'name': 'fred', 'age': 40 }]
+     */
+    function createCallback(func, thisArg, argCount) {
+      var type = typeof func;
+      if (func == null || type == 'function') {
+        return baseCreateCallback(func, thisArg, argCount);
+      }
+      // handle "_.pluck" style callback shorthands
+      if (type != 'object') {
+        return property(func);
+      }
+      var props = keys(func),
+          key = props[0],
+          a = func[key];
+
+      // handle "_.where" style callback shorthands
+      if (props.length == 1 && a === a && !isObject(a)) {
+        // fast path the common case of providing an object with a single
+        // property containing a primitive value
+        return function(object) {
+          var b = object[key];
+          return a === b && (a !== 0 || (1 / a == 1 / b));
+        };
+      }
+      return function(object) {
+        var length = props.length,
+            result = false;
+
+        while (length--) {
+          if (!(result = baseIsEqual(object[props[length]], func[props[length]], null, true))) {
+            break;
+          }
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their
+     * corresponding HTML entities.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} string The string to escape.
+     * @returns {string} Returns the escaped string.
+     * @example
+     *
+     * _.escape('Fred, Wilma, & Pebbles');
+     * // => 'Fred, Wilma, &amp; Pebbles'
+     */
+    function escape(string) {
+      return string == null ? '' : String(string).replace(reUnescapedHtml, escapeHtmlChar);
+    }
+
+    /**
+     * This method returns the first argument provided to it.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {*} value Any value.
+     * @returns {*} Returns `value`.
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * _.identity(object) === object;
+     * // => true
+     */
+    function identity(value) {
+      return value;
+    }
+
+    /**
+     * Adds function properties of a source object to the destination object.
+     * If `object` is a function methods will be added to its prototype as well.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {Function|Object} [object=lodash] object The destination object.
+     * @param {Object} source The object of functions to add.
+     * @param {Object} [options] The options object.
+     * @param {boolean} [options.chain=true] Specify whether the functions added are chainable.
+     * @example
+     *
+     * function capitalize(string) {
+     *   return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
+     * }
+     *
+     * _.mixin({ 'capitalize': capitalize });
+     * _.capitalize('fred');
+     * // => 'Fred'
+     *
+     * _('fred').capitalize().value();
+     * // => 'Fred'
+     *
+     * _.mixin({ 'capitalize': capitalize }, { 'chain': false });
+     * _('fred').capitalize();
+     * // => 'Fred'
+     */
+    function mixin(object, source, options) {
+      var chain = true,
+          methodNames = source && functions(source);
+
+      if (!source || (!options && !methodNames.length)) {
+        if (options == null) {
+          options = source;
+        }
+        ctor = lodashWrapper;
+        source = object;
+        object = lodash;
+        methodNames = functions(source);
+      }
+      if (options === false) {
+        chain = false;
+      } else if (isObject(options) && 'chain' in options) {
+        chain = options.chain;
+      }
+      var ctor = object,
+          isFunc = isFunction(ctor);
+
+      forEach(methodNames, function(methodName) {
+        var func = object[methodName] = source[methodName];
+        if (isFunc) {
+          ctor.prototype[methodName] = function() {
+            var chainAll = this.__chain__,
+                value = this.__wrapped__,
+                args = [value];
+
+            push.apply(args, arguments);
+            var result = func.apply(object, args);
+            if (chain || chainAll) {
+              if (value === result && isObject(result)) {
+                return this;
+              }
+              result = new ctor(result);
+              result.__chain__ = chainAll;
+            }
+            return result;
+          };
+        }
+      });
+    }
+
+    /**
+     * Reverts the '_' variable to its previous value and returns a reference to
+     * the `lodash` function.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @returns {Function} Returns the `lodash` function.
+     * @example
+     *
+     * var lodash = _.noConflict();
+     */
+    function noConflict() {
+      context._ = oldDash;
+      return this;
+    }
+
+    /**
+     * A no-operation function.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @example
+     *
+     * var object = { 'name': 'fred' };
+     * _.noop(object) === undefined;
+     * // => true
+     */
+    function noop() {
+      // no operation performed
+    }
+
+    /**
+     * Gets the number of milliseconds that have elapsed since the Unix epoch
+     * (1 January 1970 00:00:00 UTC).
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @example
+     *
+     * var stamp = _.now();
+     * _.defer(function() { console.log(_.now() - stamp); });
+     * // => logs the number of milliseconds it took for the deferred function to be called
+     */
+    var now = isNative(now = Date.now) && now || function() {
+      return new Date().getTime();
+    };
+
+    /**
+     * Converts the given value into an integer of the specified radix.
+     * If `radix` is `undefined` or `0` a `radix` of `10` is used unless the
+     * `value` is a hexadecimal, in which case a `radix` of `16` is used.
+     *
+     * Note: This method avoids differences in native ES3 and ES5 `parseInt`
+     * implementations. See http://es5.github.io/#E.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} value The value to parse.
+     * @param {number} [radix] The radix used to interpret the value to parse.
+     * @returns {number} Returns the new integer value.
+     * @example
+     *
+     * _.parseInt('08');
+     * // => 8
+     */
+    var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
+      // Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
+      return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
+    };
+
+    /**
+     * Creates a "_.pluck" style function, which returns the `key` value of a
+     * given object.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} key The name of the property to retrieve.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'fred',   'age': 40 },
+     *   { 'name': 'barney', 'age': 36 }
+     * ];
+     *
+     * var getName = _.property('name');
+     *
+     * _.map(characters, getName);
+     * // => ['barney', 'fred']
+     *
+     * _.sortBy(characters, getName);
+     * // => [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred',   'age': 40 }]
+     */
+    function property(key) {
+      return function(object) {
+        return object[key];
+      };
+    }
+
+    /**
+     * Produces a random number between `min` and `max` (inclusive). If only one
+     * argument is provided a number between `0` and the given number will be
+     * returned. If `floating` is truey or either `min` or `max` are floats a
+     * floating-point number will be returned instead of an integer.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {number} [min=0] The minimum possible value.
+     * @param {number} [max=1] The maximum possible value.
+     * @param {boolean} [floating=false] Specify returning a floating-point number.
+     * @returns {number} Returns a random number.
+     * @example
+     *
+     * _.random(0, 5);
+     * // => an integer between 0 and 5
+     *
+     * _.random(5);
+     * // => also an integer between 0 and 5
+     *
+     * _.random(5, true);
+     * // => a floating-point number between 0 and 5
+     *
+     * _.random(1.2, 5.2);
+     * // => a floating-point number between 1.2 and 5.2
+     */
+    function random(min, max, floating) {
+      var noMin = min == null,
+          noMax = max == null;
+
+      if (floating == null) {
+        if (typeof min == 'boolean' && noMax) {
+          floating = min;
+          min = 1;
+        }
+        else if (!noMax && typeof max == 'boolean') {
+          floating = max;
+          noMax = true;
+        }
+      }
+      if (noMin && noMax) {
+        max = 1;
+      }
+      min = +min || 0;
+      if (noMax) {
+        max = min;
+        min = 0;
+      } else {
+        max = +max || 0;
+      }
+      if (floating || min % 1 || max % 1) {
+        var rand = nativeRandom();
+        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand +'').length - 1)))), max);
+      }
+      return baseRandom(min, max);
+    }
+
+    /**
+     * Resolves the value of property `key` on `object`. If `key` is a function
+     * it will be invoked with the `this` binding of `object` and its result returned,
+     * else the property value is returned. If `object` is falsey then `undefined`
+     * is returned.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {Object} object The object to inspect.
+     * @param {string} key The name of the property to resolve.
+     * @returns {*} Returns the resolved value.
+     * @example
+     *
+     * var object = {
+     *   'cheese': 'crumpets',
+     *   'stuff': function() {
+     *     return 'nonsense';
+     *   }
+     * };
+     *
+     * _.result(object, 'cheese');
+     * // => 'crumpets'
+     *
+     * _.result(object, 'stuff');
+     * // => 'nonsense'
+     */
+    function result(object, key) {
+      if (object) {
+        var value = object[key];
+        return isFunction(value) ? object[key]() : value;
+      }
+    }
+
+    /**
+     * A micro-templating method that handles arbitrary delimiters, preserves
+     * whitespace, and correctly escapes quotes within interpolated code.
+     *
+     * Note: In the development build, `_.template` utilizes sourceURLs for easier
+     * debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+     *
+     * For more information on precompiling templates see:
+     * http://lodash.com/custom-builds
+     *
+     * For more information on Chrome extension sandboxes see:
+     * http://developer.chrome.com/stable/extensions/sandboxingEval.html
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} text The template text.
+     * @param {Object} data The data object used to populate the text.
+     * @param {Object} [options] The options object.
+     * @param {RegExp} [options.escape] The "escape" delimiter.
+     * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
+     * @param {Object} [options.imports] An object to import into the template as local variables.
+     * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
+     * @param {string} [sourceURL] The sourceURL of the template's compiled source.
+     * @param {string} [variable] The data object variable name.
+     * @returns {Function|string} Returns a compiled function when no `data` object
+     *  is given, else it returns the interpolated text.
+     * @example
+     *
+     * // using the "interpolate" delimiter to create a compiled template
+     * var compiled = _.template('hello <%= name %>');
+     * compiled({ 'name': 'fred' });
+     * // => 'hello fred'
+     *
+     * // using the "escape" delimiter to escape HTML in data property values
+     * _.template('<b><%- value %></b>', { 'value': '<script>' });
+     * // => '<b>&lt;script&gt;</b>'
+     *
+     * // using the "evaluate" delimiter to generate HTML
+     * var list = '<% _.forEach(people, function(name) { %><li><%- name %></li><% }); %>';
+     * _.template(list, { 'people': ['fred', 'barney'] });
+     * // => '<li>fred</li><li>barney</li>'
+     *
+     * // using the ES6 delimiter as an alternative to the default "interpolate" delimiter
+     * _.template('hello ${ name }', { 'name': 'pebbles' });
+     * // => 'hello pebbles'
+     *
+     * // using the internal `print` function in "evaluate" delimiters
+     * _.template('<% print("hello " + name); %>!', { 'name': 'barney' });
+     * // => 'hello barney!'
+     *
+     * // using a custom template delimiters
+     * _.templateSettings = {
+     *   'interpolate': /{{([\s\S]+?)}}/g
+     * };
+     *
+     * _.template('hello {{ name }}!', { 'name': 'mustache' });
+     * // => 'hello mustache!'
+     *
+     * // using the `imports` option to import jQuery
+     * var list = '<% jq.each(people, function(name) { %><li><%- name %></li><% }); %>';
+     * _.template(list, { 'people': ['fred', 'barney'] }, { 'imports': { 'jq': jQuery } });
+     * // => '<li>fred</li><li>barney</li>'
+     *
+     * // using the `sourceURL` option to specify a custom sourceURL for the template
+     * var compiled = _.template('hello <%= name %>', null, { 'sourceURL': '/basic/greeting.jst' });
+     * compiled(data);
+     * // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
+     *
+     * // using the `variable` option to ensure a with-statement isn't used in the compiled template
+     * var compiled = _.template('hi <%= data.name %>!', null, { 'variable': 'data' });
+     * compiled.source;
+     * // => function(data) {
+     *   var __t, __p = '', __e = _.escape;
+     *   __p += 'hi ' + ((__t = ( data.name )) == null ? '' : __t) + '!';
+     *   return __p;
+     * }
+     *
+     * // using the `source` property to inline compiled templates for meaningful
+     * // line numbers in error messages and a stack trace
+     * fs.writeFileSync(path.join(cwd, 'jst.js'), '\
+     *   var JST = {\
+     *     "main": ' + _.template(mainText).source + '\
+     *   };\
+     * ');
+     */
+    function template(text, data, options) {
+      // based on John Resig's `tmpl` implementation
+      // http://ejohn.org/blog/javascript-micro-templating/
+      // and Laura Doktorova's doT.js
+      // https://github.com/olado/doT
+      var settings = lodash.templateSettings;
+      text = String(text || '');
+
+      // avoid missing dependencies when `iteratorTemplate` is not defined
+      options = defaults({}, options, settings);
+
+      var imports = defaults({}, options.imports, settings.imports),
+          importsKeys = keys(imports),
+          importsValues = values(imports);
+
+      var isEvaluating,
+          index = 0,
+          interpolate = options.interpolate || reNoMatch,
+          source = "__p += '";
+
+      // compile the regexp to match each delimiter
+      var reDelimiters = RegExp(
+        (options.escape || reNoMatch).source + '|' +
+        interpolate.source + '|' +
+        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
+        (options.evaluate || reNoMatch).source + '|$'
+      , 'g');
+
+      text.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
+        interpolateValue || (interpolateValue = esTemplateValue);
+
+        // escape characters that cannot be included in string literals
+        source += text.slice(index, offset).replace(reUnescapedString, escapeStringChar);
+
+        // replace delimiters with snippets
+        if (escapeValue) {
+          source += "' +\n__e(" + escapeValue + ") +\n'";
+        }
+        if (evaluateValue) {
+          isEvaluating = true;
+          source += "';\n" + evaluateValue + ";\n__p += '";
+        }
+        if (interpolateValue) {
+          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
+        }
+        index = offset + match.length;
+
+        // the JS engine embedded in Adobe products requires returning the `match`
+        // string in order to produce the correct `offset` value
+        return match;
+      });
+
+      source += "';\n";
+
+      // if `variable` is not specified, wrap a with-statement around the generated
+      // code to add the data object to the top of the scope chain
+      var variable = options.variable,
+          hasVariable = variable;
+
+      if (!hasVariable) {
+        variable = 'obj';
+        source = 'with (' + variable + ') {\n' + source + '\n}\n';
+      }
+      // cleanup code by stripping empty strings
+      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
+        .replace(reEmptyStringMiddle, '$1')
+        .replace(reEmptyStringTrailing, '$1;');
+
+      // frame code as the function body
+      source = 'function(' + variable + ') {\n' +
+        (hasVariable ? '' : variable + ' || (' + variable + ' = {});\n') +
+        "var __t, __p = '', __e = _.escape" +
+        (isEvaluating
+          ? ', __j = Array.prototype.join;\n' +
+            "function print() { __p += __j.call(arguments, '') }\n"
+          : ';\n'
+        ) +
+        source +
+        'return __p\n}';
+
+      // Use a sourceURL for easier debugging.
+      // http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+      var sourceURL = '\n/*\n//# sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/';
+
+      try {
+        var result = Function(importsKeys, 'return ' + source + sourceURL).apply(undefined, importsValues);
+      } catch(e) {
+        e.source = source;
+        throw e;
+      }
+      if (data) {
+        return result(data);
+      }
+      // provide the compiled function's source by its `toString` method, in
+      // supported environments, or the `source` property as a convenience for
+      // inlining compiled templates during the build process
+      result.source = source;
+      return result;
+    }
+
+    /**
+     * Executes the callback `n` times, returning an array of the results
+     * of each callback execution. The callback is bound to `thisArg` and invoked
+     * with one argument; (index).
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {number} n The number of times to execute the callback.
+     * @param {Function} callback The function called per iteration.
+     * @param {*} [thisArg] The `this` binding of `callback`.
+     * @returns {Array} Returns an array of the results of each `callback` execution.
+     * @example
+     *
+     * var diceRolls = _.times(3, _.partial(_.random, 1, 6));
+     * // => [3, 6, 4]
+     *
+     * _.times(3, function(n) { mage.castSpell(n); });
+     * // => calls `mage.castSpell(n)` three times, passing `n` of `0`, `1`, and `2` respectively
+     *
+     * _.times(3, function(n) { this.cast(n); }, mage);
+     * // => also calls `mage.castSpell(n)` three times
+     */
+    function times(n, callback, thisArg) {
+      n = (n = +n) > -1 ? n : 0;
+      var index = -1,
+          result = Array(n);
+
+      callback = baseCreateCallback(callback, thisArg, 1);
+      while (++index < n) {
+        result[index] = callback(index);
+      }
+      return result;
+    }
+
+    /**
+     * The inverse of `_.escape` this method converts the HTML entities
+     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to their
+     * corresponding characters.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} string The string to unescape.
+     * @returns {string} Returns the unescaped string.
+     * @example
+     *
+     * _.unescape('Fred, Barney &amp; Pebbles');
+     * // => 'Fred, Barney & Pebbles'
+     */
+    function unescape(string) {
+      return string == null ? '' : String(string).replace(reEscapedHtml, unescapeHtmlChar);
+    }
+
+    /**
+     * Generates a unique ID. If `prefix` is provided the ID will be appended to it.
+     *
+     * @static
+     * @memberOf _
+     * @category Utilities
+     * @param {string} [prefix] The value to prefix the ID with.
+     * @returns {string} Returns the unique ID.
+     * @example
+     *
+     * _.uniqueId('contact_');
+     * // => 'contact_104'
+     *
+     * _.uniqueId();
+     * // => '105'
+     */
+    function uniqueId(prefix) {
+      var id = ++idCounter;
+      return String(prefix == null ? '' : prefix) + id;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * Creates a `lodash` object that wraps the given value with explicit
+     * method chaining enabled.
+     *
+     * @static
+     * @memberOf _
+     * @category Chaining
+     * @param {*} value The value to wrap.
+     * @returns {Object} Returns the wrapper object.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney',  'age': 36 },
+     *   { 'name': 'fred',    'age': 40 },
+     *   { 'name': 'pebbles', 'age': 1 }
+     * ];
+     *
+     * var youngest = _.chain(characters)
+     *     .sortBy('age')
+     *     .map(function(chr) { return chr.name + ' is ' + chr.age; })
+     *     .first()
+     *     .value();
+     * // => 'pebbles is 1'
+     */
+    function chain(value) {
+      value = new lodashWrapper(value);
+      value.__chain__ = true;
+      return value;
+    }
+
+    /**
+     * Invokes `interceptor` with the `value` as the first argument and then
+     * returns `value`. The purpose of this method is to "tap into" a method
+     * chain in order to perform operations on intermediate results within
+     * the chain.
+     *
+     * @static
+     * @memberOf _
+     * @category Chaining
+     * @param {*} value The value to provide to `interceptor`.
+     * @param {Function} interceptor The function to invoke.
+     * @returns {*} Returns `value`.
+     * @example
+     *
+     * _([1, 2, 3, 4])
+     *  .tap(function(array) { array.pop(); })
+     *  .reverse()
+     *  .value();
+     * // => [3, 2, 1]
+     */
+    function tap(value, interceptor) {
+      interceptor(value);
+      return value;
+    }
+
+    /**
+     * Enables explicit method chaining on the wrapper object.
+     *
+     * @name chain
+     * @memberOf _
+     * @category Chaining
+     * @returns {*} Returns the wrapper object.
+     * @example
+     *
+     * var characters = [
+     *   { 'name': 'barney', 'age': 36 },
+     *   { 'name': 'fred',   'age': 40 }
+     * ];
+     *
+     * // without explicit chaining
+     * _(characters).first();
+     * // => { 'name': 'barney', 'age': 36 }
+     *
+     * // with explicit chaining
+     * _(characters).chain()
+     *   .first()
+     *   .pick('age')
+     *   .value();
+     * // => { 'age': 36 }
+     */
+    function wrapperChain() {
+      this.__chain__ = true;
+      return this;
+    }
+
+    /**
+     * Produces the `toString` result of the wrapped value.
+     *
+     * @name toString
+     * @memberOf _
+     * @category Chaining
+     * @returns {string} Returns the string result.
+     * @example
+     *
+     * _([1, 2, 3]).toString();
+     * // => '1,2,3'
+     */
+    function wrapperToString() {
+      return String(this.__wrapped__);
+    }
+
+    /**
+     * Extracts the wrapped value.
+     *
+     * @name valueOf
+     * @memberOf _
+     * @alias value
+     * @category Chaining
+     * @returns {*} Returns the wrapped value.
+     * @example
+     *
+     * _([1, 2, 3]).valueOf();
+     * // => [1, 2, 3]
+     */
+    function wrapperValueOf() {
+      return this.__wrapped__;
+    }
+
+    /*--------------------------------------------------------------------------*/
+
+    // add functions that return wrapped values when chaining
+    lodash.after = after;
+    lodash.assign = assign;
+    lodash.at = at;
+    lodash.bind = bind;
+    lodash.bindAll = bindAll;
+    lodash.bindKey = bindKey;
+    lodash.chain = chain;
+    lodash.compact = compact;
+    lodash.compose = compose;
+    lodash.constant = constant;
+    lodash.countBy = countBy;
+    lodash.create = create;
+    lodash.createCallback = createCallback;
+    lodash.curry = curry;
+    lodash.debounce = debounce;
+    lodash.defaults = defaults;
+    lodash.defer = defer;
+    lodash.delay = delay;
+    lodash.difference = difference;
+    lodash.filter = filter;
+    lodash.flatten = flatten;
+    lodash.forEach = forEach;
+    lodash.forEachRight = forEachRight;
+    lodash.forIn = forIn;
+    lodash.forInRight = forInRight;
+    lodash.forOwn = forOwn;
+    lodash.forOwnRight = forOwnRight;
+    lodash.functions = functions;
+    lodash.groupBy = groupBy;
+    lodash.indexBy = indexBy;
+    lodash.initial = initial;
+    lodash.intersection = intersection;
+    lodash.invert = invert;
+    lodash.invoke = invoke;
+    lodash.keys = keys;
+    lodash.map = map;
+    lodash.mapValues = mapValues;
+    lodash.max = max;
+    lodash.memoize = memoize;
+    lodash.merge = merge;
+    lodash.min = min;
+    lodash.omit = omit;
+    lodash.once = once;
+    lodash.pairs = pairs;
+    lodash.partial = partial;
+    lodash.partialRight = partialRight;
+    lodash.pick = pick;
+    lodash.pluck = pluck;
+    lodash.property = property;
+    lodash.pull = pull;
+    lodash.range = range;
+    lodash.reject = reject;
+    lodash.remove = remove;
+    lodash.rest = rest;
+    lodash.shuffle = shuffle;
+    lodash.sortBy = sortBy;
+    lodash.tap = tap;
+    lodash.throttle = throttle;
+    lodash.times = times;
+    lodash.toArray = toArray;
+    lodash.transform = transform;
+    lodash.union = union;
+    lodash.uniq = uniq;
+    lodash.values = values;
+    lodash.where = where;
+    lodash.without = without;
+    lodash.wrap = wrap;
+    lodash.xor = xor;
+    lodash.zip = zip;
+    lodash.zipObject = zipObject;
+
+    // add aliases
+    lodash.collect = map;
+    lodash.drop = rest;
+    lodash.each = forEach;
+    lodash.eachRight = forEachRight;
+    lodash.extend = assign;
+    lodash.methods = functions;
+    lodash.object = zipObject;
+    lodash.select = filter;
+    lodash.tail = rest;
+    lodash.unique = uniq;
+    lodash.unzip = zip;
+
+    // add functions to `lodash.prototype`
+    mixin(lodash);
+
+    /*--------------------------------------------------------------------------*/
+
+    // add functions that return unwrapped values when chaining
+    lodash.clone = clone;
+    lodash.cloneDeep = cloneDeep;
+    lodash.contains = contains;
+    lodash.escape = escape;
+    lodash.every = every;
+    lodash.find = find;
+    lodash.findIndex = findIndex;
+    lodash.findKey = findKey;
+    lodash.findLast = findLast;
+    lodash.findLastIndex = findLastIndex;
+    lodash.findLastKey = findLastKey;
+    lodash.has = has;
+    lodash.identity = identity;
+    lodash.indexOf = indexOf;
+    lodash.isArguments = isArguments;
+    lodash.isArray = isArray;
+    lodash.isBoolean = isBoolean;
+    lodash.isDate = isDate;
+    lodash.isElement = isElement;
+    lodash.isEmpty = isEmpty;
+    lodash.isEqual = isEqual;
+    lodash.isFinite = isFinite;
+    lodash.isFunction = isFunction;
+    lodash.isNaN = isNaN;
+    lodash.isNull = isNull;
+    lodash.isNumber = isNumber;
+    lodash.isObject = isObject;
+    lodash.isPlainObject = isPlainObject;
+    lodash.isRegExp = isRegExp;
+    lodash.isString = isString;
+    lodash.isUndefined = isUndefined;
+    lodash.lastIndexOf = lastIndexOf;
+    lodash.mixin = mixin;
+    lodash.noConflict = noConflict;
+    lodash.noop = noop;
+    lodash.now = now;
+    lodash.parseInt = parseInt;
+    lodash.random = random;
+    lodash.reduce = reduce;
+    lodash.reduceRight = reduceRight;
+    lodash.result = result;
+    lodash.runInContext = runInContext;
+    lodash.size = size;
+    lodash.some = some;
+    lodash.sortedIndex = sortedIndex;
+    lodash.template = template;
+    lodash.unescape = unescape;
+    lodash.uniqueId = uniqueId;
+
+    // add aliases
+    lodash.all = every;
+    lodash.any = some;
+    lodash.detect = find;
+    lodash.findWhere = find;
+    lodash.foldl = reduce;
+    lodash.foldr = reduceRight;
+    lodash.include = contains;
+    lodash.inject = reduce;
+
+    mixin(function() {
+      var source = {}
+      forOwn(lodash, function(func, methodName) {
+        if (!lodash.prototype[methodName]) {
+          source[methodName] = func;
+        }
+      });
+      return source;
+    }(), false);
+
+    /*--------------------------------------------------------------------------*/
+
+    // add functions capable of returning wrapped and unwrapped values when chaining
+    lodash.first = first;
+    lodash.last = last;
+    lodash.sample = sample;
+
+    // add aliases
+    lodash.take = first;
+    lodash.head = first;
+
+    forOwn(lodash, function(func, methodName) {
+      var callbackable = methodName !== 'sample';
+      if (!lodash.prototype[methodName]) {
+        lodash.prototype[methodName]= function(n, guard) {
+          var chainAll = this.__chain__,
+              result = func(this.__wrapped__, n, guard);
+
+          return !chainAll && (n == null || (guard && !(callbackable && typeof n == 'function')))
+            ? result
+            : new lodashWrapper(result, chainAll);
+        };
+      }
+    });
+
+    /*--------------------------------------------------------------------------*/
+
+    /**
+     * The semantic version number.
+     *
+     * @static
+     * @memberOf _
+     * @type string
+     */
+    lodash.VERSION = '2.4.1';
+
+    // add "Chaining" functions to the wrapper
+    lodash.prototype.chain = wrapperChain;
+    lodash.prototype.toString = wrapperToString;
+    lodash.prototype.value = wrapperValueOf;
+    lodash.prototype.valueOf = wrapperValueOf;
+
+    // add `Array` functions that return unwrapped values
+    forEach(['join', 'pop', 'shift'], function(methodName) {
+      var func = arrayRef[methodName];
+      lodash.prototype[methodName] = function() {
+        var chainAll = this.__chain__,
+            result = func.apply(this.__wrapped__, arguments);
+
+        return chainAll
+          ? new lodashWrapper(result, chainAll)
+          : result;
+      };
+    });
+
+    // add `Array` functions that return the existing wrapped value
+    forEach(['push', 'reverse', 'sort', 'unshift'], function(methodName) {
+      var func = arrayRef[methodName];
+      lodash.prototype[methodName] = function() {
+        func.apply(this.__wrapped__, arguments);
+        return this;
+      };
+    });
+
+    // add `Array` functions that return new wrapped values
+    forEach(['concat', 'slice', 'splice'], function(methodName) {
+      var func = arrayRef[methodName];
+      lodash.prototype[methodName] = function() {
+        return new lodashWrapper(func.apply(this.__wrapped__, arguments), this.__chain__);
+      };
+    });
+
+    return lodash;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  // expose Lo-Dash
+  var _ = runInContext();
+
+  // some AMD build optimizers like r.js check for condition patterns like the following:
+  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
+    // Expose Lo-Dash to the global object even when an AMD loader is present in
+    // case Lo-Dash is loaded with a RequireJS shim config.
+    // See http://requirejs.org/docs/api.html#config-shim
+    root._ = _;
+
+    // define as an anonymous module so, through path mapping, it can be
+    // referenced as the "underscore" module
+    define(function() {
+      return _;
+    });
+  }
+  // check for `exports` after `define` in case a build optimizer adds an `exports` object
+  else if (freeExports && freeModule) {
+    // in Node.js or RingoJS
+    if (moduleExports) {
+      (freeModule.exports = _)._ = _;
+    }
+    // in Narwhal or Rhino -require
+    else {
+      freeExports._ = _;
+    }
+  }
+  else {
+    // in a browser or Rhino
+    root._ = _;
+  }
+}.call(this));
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],102:[function(require,module,exports){
 (function (global){
 var graph = require('./graphDb');
 var flow = require('./parser/flow');
 var utils = require('./utils');
 var seq = require('./sequenceRenderer');
 var he = require('he');
-
+var dagreD3 = require('dagre-d3');
 /**
  * Function that adds the vertices found in the graph definition to the graph to be rendered.
  * @param vert Object containing the vertices.
@@ -934,7 +13274,7 @@ exports.tester = function(){};
  * @returns {string}
  */
 exports.version = function(){
-    return '0.2.10';
+    return '0.2.11';
 };
 
 var equals = function (val, variable){
@@ -945,23 +13285,25 @@ var equals = function (val, variable){
         return (val === variable);
     }
 };
-
-/**
- * Wait for coument loaded before starting the execution
- */
-document.addEventListener('DOMContentLoaded', function(){
-    // Check presence of config object
-    if(typeof mermaid_config !== 'undefined'){
-        // Check if property startOnLoad is set
-        if(equals(true,mermaid_config.startOnLoad)){
+if(typeof document !== 'undefined'){
+    /**
+     * Wait for coument loaded before starting the execution
+     */
+    document.addEventListener('DOMContentLoaded', function(){
+        // Check presence of config object
+        if(typeof mermaid_config !== 'undefined'){
+            // Check if property startOnLoad is set
+            if(equals(true,mermaid_config.startOnLoad)){
+                init();
+            }
+        }
+        else{
+            // No config found, do autostart in this simple case
             init();
         }
-    }
-    else{
-        // No config found, do autostart in this simple case
-        init();
-    }
-}, false);
+    }, false);
+
+}
 
 global.mermaid = {
     init:function(){
@@ -972,7 +13314,7 @@ global.mermaid = {
     }
 };
 }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./graphDb":6,"./parser/flow":7,"./sequenceRenderer":10,"./utils":11,"he":4}],6:[function(require,module,exports){
+},{"./graphDb":103,"./parser/flow":104,"./sequenceRenderer":107,"./utils":108,"dagre-d3":1,"he":100}],103:[function(require,module,exports){
 /**
  * Created by knut on 14-11-03.
  */
@@ -1172,7 +13514,7 @@ exports.defaultStyle = function () {
 };
 
 
-},{}],7:[function(require,module,exports){
+},{}],104:[function(require,module,exports){
 (function (process){
 /* parser generated by jison 0.4.15 */
 /*
@@ -1941,7 +14283,7 @@ if (typeof module !== 'undefined' && require.main === module) {
 }
 }
 }).call(this,require("1YiZ5S"))
-},{"1YiZ5S":3,"fs":1,"path":2}],8:[function(require,module,exports){
+},{"1YiZ5S":99,"fs":97,"path":98}],105:[function(require,module,exports){
 (function (process){
 /* parser generated by jison 0.4.15 */
 /*
@@ -2607,7 +14949,7 @@ if (typeof module !== 'undefined' && require.main === module) {
 }
 }
 }).call(this,require("1YiZ5S"))
-},{"1YiZ5S":3,"fs":1,"path":2}],9:[function(require,module,exports){
+},{"1YiZ5S":99,"fs":97,"path":98}],106:[function(require,module,exports){
 /**
  * Created by knut on 14-11-19.
  */
@@ -2641,7 +14983,7 @@ exports.clear = function(){
     actors = {};
     messages = [];
 };
-},{}],10:[function(require,module,exports){
+},{}],107:[function(require,module,exports){
 /**
  * Created by knut on 14-11-23.
  */
@@ -2808,7 +15150,7 @@ module.exports.draw = function (text, id) {
      */
 };
 
-},{"./parser/sequence":8,"./sequenceDb":9}],11:[function(require,module,exports){
+},{"./parser/sequence":105,"./sequenceDb":106}],108:[function(require,module,exports){
 /**
  * Created by knut on 14-11-23.
  */
@@ -2820,4 +15162,4 @@ module.exports.detectType = function(text){
         return "graph";
     }
 }
-},{}]},{},[5])
\ No newline at end of file
+},{}]},{},[102])
\ No newline at end of file
diff --git a/dist/mermaid.slim.min.js b/dist/mermaid.slim.min.js
index 93a25e672..28cea8202 100644
--- a/dist/mermaid.slim.min.js
+++ b/dist/mermaid.slim.min.js
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k","Ú":"Uacute","ú":"uacute","↟":"Uarr","⥉":"Uarrocir","Ў":"Ubrcy","ў":"ubrcy","Ŭ":"Ubreve","ŭ":"ubreve","Û":"Ucirc","û":"ucirc","У":"Ucy","у":"ucy","⇅":"udarr","Ű":"Udblac","ű":"udblac","⥮":"udhar","⥾":"ufisht","𝔘":"Ufr","𝔲":"ufr","Ù":"Ugrave","ù":"ugrave","⥣":"uHar","▀":"uhblk","⌜":"ulcorn","⌏":"ulcrop","◸":"ultri","Ū":"Umacr","ū":"umacr","⏟":"UnderBrace","⏝":"UnderParenthesis","⊎":"uplus","Ų":"Uogon","ų":"uogon","𝕌":"Uopf","𝕦":"uopf","⤒":"UpArrowBar","↕":"varr","υ":"upsi","ϒ":"Upsi","Υ":"Upsilon","⇈":"uuarr","⌝":"urcorn","⌎":"urcrop","Ů":"Uring","ů":"uring","◹":"urtri","𝒰":"Uscr","𝓊":"uscr","⋰":"utdot","Ũ":"Utilde","ũ":"utilde","Ü":"Uuml","ü":"uuml","⦧":"uwangle","⦜":"vangrt","⊊︀":"vsubne","⫋︀":"vsubnE","⊋︀":"vsupne","⫌︀":"vsupnE","⫨":"vBar","⫫":"Vbar","⫩":"vBarv","В":"Vcy","в":"vcy","⊩":"Vdash","⊫":"VDash","⫦":"Vdashl","⊻":"veebar","≚":"veeeq","⋮":"vellip","|":"vert","‖":"Vert","❘":"VerticalSeparator","≀":"wr","𝔙":"Vfr","𝔳":"vfr","𝕍":"Vopf","𝕧":"vopf","𝒱":"Vscr","𝓋":"vscr","⊪":"Vvdash","⦚":"vzigzag","Ŵ":"Wcirc","ŵ":"wcirc","⩟":"wedbar","≙":"wedgeq","℘":"wp","𝔚":"Wfr","𝔴":"wfr","𝕎":"Wopf","𝕨":"wopf","𝒲":"Wscr","𝓌":"wscr","𝔛":"Xfr","𝔵":"xfr","Ξ":"Xi","ξ":"xi","⋻":"xnis","𝕏":"Xopf","𝕩":"xopf","𝒳":"Xscr","𝓍":"xscr","Ý":"Yacute","ý":"yacute","Я":"YAcy","я":"yacy","Ŷ":"Ycirc","ŷ":"ycirc","Ы":"Ycy","ы":"ycy","¥":"yen","𝔜":"Yfr","𝔶":"yfr","Ї":"YIcy","ї":"yicy","𝕐":"Yopf","𝕪":"yopf","𝒴":"Yscr","𝓎":"yscr","Ю":"YUcy","ю":"yucy","ÿ":"yuml","Ÿ":"Yuml","Ź":"Zacute","ź":"zacute","Ž":"Zcaron","ž":"zcaron","З":"Zcy","з":"zcy","Ż":"Zdot","ż":"zdot","ℨ":"Zfr","Ζ":"Zeta","ζ":"zeta","𝔷":"zfr","Ж":"ZHcy","ж":"zhcy","⇝":"zigrarr","𝕫":"zopf","𝒵":"Zscr","𝓏":"zscr","‍":"zwj","‌":"zwnj"},h=/["&'<>`]/g,d={'"':"&quot;","&":"&amp;","'":"&#x27;","<":"&lt;",">":"&gt;","`":"&#x60;"},f=/&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/,g=/[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/,m=/&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|iacute|Uacute|plusmn|otilde|Otilde|Agrave|agrave|yacute|Yacute|oslash|Oslash|Atilde|atilde|brvbar|Ccedil|ccedil|ograve|curren|divide|Eacute|eacute|Ograve|oacute|Egrave|egrave|ugrave|frac12|frac14|frac34|Ugrave|Oacute|Iacute|ntilde|Ntilde|uacute|middot|Igrave|igrave|iquest|aacute|laquo|THORN|micro|iexcl|icirc|Icirc|Acirc|ucirc|ecirc|Ocirc|ocirc|Ecirc|Ucirc|aring|Aring|aelig|AElig|acute|pound|raquo|acirc|times|thorn|szlig|cedil|COPY|Auml|ordf|ordm|uuml|macr|Uuml|auml|Ouml|ouml|para|nbsp|Euml|quot|QUOT|euml|yuml|cent|sect|copy|sup1|sup2|sup3|Iuml|iuml|shy|eth|reg|not|yen|amp|AMP|REG|uml|ETH|deg|gt|GT|LT|lt)([=a-zA-Z0-9])?/g,y={Aacute:"Á",aacute:"á",Abreve:"Ă",abreve:"ă",ac:"∾",acd:"∿",acE:"∾̳",Acirc:"Â",acirc:"â",acute:"´",Acy:"А",acy:"а",AElig:"Æ",aelig:"æ",af:"⁡",Afr:"𝔄",afr:"𝔞",Agrave:"À",agrave:"à",alefsym:"ℵ",aleph:"ℵ",Alpha:"Α",alpha:"α",Amacr:"Ā",amacr:"ā",amalg:"⨿",amp:"&",AMP:"&",andand:"⩕",And:"⩓",and:"∧",andd:"⩜",andslope:"⩘",andv:"⩚",ang:"∠",ange:"⦤",angle:"∠",angmsdaa:"⦨",angmsdab:"⦩",angmsdac:"⦪",angmsdad:"⦫",angmsdae:"⦬",angmsdaf:"⦭",angmsdag:"⦮",angmsdah:"⦯",angmsd:"∡",angrt:"∟",angrtvb:"⊾",angrtvbd:"⦝",angsph:"∢",angst:"Å",angzarr:"⍼",Aogon:"Ą",aogon:"ą",Aopf:"𝔸",aopf:"𝕒",apacir:"⩯",ap:"≈",apE:"⩰",ape:"≊",apid:"≋",apos:"'",ApplyFunction:"⁡",approx:"≈",approxeq:"≊",Aring:"Å",aring:"å",Ascr:"𝒜",ascr:"𝒶",Assign:"≔",ast:"*",asymp:"≈",asympeq:"≍",Atilde:"Ã",atilde:"ã",Auml:"Ä",auml:"ä",awconint:"∳",awint:"⨑",backcong:"≌",backepsilon:"϶",backprime:"‵",backsim:"∽",backsimeq:"⋍",Backslash:"∖",Barv:"⫧",barvee:"⊽",barwed:"⌅",Barwed:"⌆",barwedge:"⌅",bbrk:"⎵",bbrktbrk:"⎶",bcong:"≌",Bcy:"Б",bcy:"б",bdquo:"„",becaus:"∵",because:"∵",Because:"∵",bemptyv:"⦰",bepsi:"϶",bernou:"ℬ",Bernoullis:"ℬ",Beta:"Β",beta:"β",beth:"ℶ",between:"≬",Bfr:"𝔅",bfr:"𝔟",bigcap:"⋂",bigcirc:"◯",bigcup:"⋃",bigodot:"⨀",bigoplus:"⨁",bigotimes:"⨂",bigsqcup:"⨆",bigstar:"★",bigtriangledown:"▽",bigtriangleup:"△",biguplus:"⨄",bigvee:"⋁",bigwedge:"⋀",bkarow:"⤍",blacklozenge:"⧫",blacksquare:"▪",blacktriangle:"▴",blacktriangledown:"▾",blacktriangleleft:"◂",blacktriangleright:"▸",blank:"␣",blk12:"▒",blk14:"░",blk34:"▓",block:"█",bne:"=⃥",bnequiv:"≡⃥",bNot:"⫭",bnot:"⌐",Bopf:"𝔹",bopf:"𝕓",bot:"⊥",bottom:"⊥",bowtie:"⋈",boxbox:"⧉",boxdl:"┐",boxdL:"╕",boxDl:"╖",boxDL:"╗",boxdr:"┌",boxdR:"╒",boxDr:"╓",boxDR:"╔",boxh:"─",boxH:"═",boxhd:"┬",boxHd:"╤",boxhD:"╥",boxHD:"╦",boxhu:"┴",boxHu:"╧",boxhU:"╨",boxHU:"╩",boxminus:"⊟",boxplus:"⊞",boxtimes:"⊠",boxul:"┘",boxuL:"╛",boxUl:"╜",boxUL:"╝",boxur:"└",boxuR:"╘",boxUr:"╙",boxUR:"╚",boxv:"│",boxV:"║",boxvh:"┼",boxvH:"╪",boxVh:"╫",boxVH:"╬",boxvl:"┤",boxvL:"╡",boxVl:"╢",boxVL:"╣",boxvr:"├",boxvR:"╞",boxVr:"╟",boxVR:"╠",bprime:"‵",breve:"˘",Breve:"˘",brvbar:"¦",bscr:"𝒷",Bscr:"ℬ",bsemi:"⁏",bsim:"∽",bsime:"⋍",bsolb:"⧅",bsol:"\\",bsolhsub:"⟈",bull:"•",bullet:"•",bump:"≎",bumpE:"⪮",bumpe:"≏",Bumpeq:"≎",bumpeq:"≏",Cacute:"Ć",cacute:"ć",capand:"⩄",capbrcup:"⩉",capcap:"⩋",cap:"∩",Cap:"⋒",capcup:"⩇",capdot:"⩀",CapitalDifferentialD:"ⅅ",caps:"∩︀",caret:"⁁",caron:"ˇ",Cayleys:"ℭ",ccaps:"⩍",Ccaron:"Č",ccaron:"č",Ccedil:"Ç",ccedil:"ç",Ccirc:"Ĉ",ccirc:"ĉ",Cconint:"∰",ccups:"⩌",ccupssm:"⩐",Cdot:"Ċ",cdot:"ċ",cedil:"¸",Cedilla:"¸",cemptyv:"⦲",cent:"¢",centerdot:"·",CenterDot:"·",cfr:"𝔠",Cfr:"ℭ",CHcy:"Ч",chcy:"ч",check:"✓",checkmark:"✓",Chi:"Χ",chi:"χ",circ:"ˆ",circeq:"≗",circlearrowleft:"↺",circlearrowright:"↻",circledast:"⊛",circledcirc:"⊚",circleddash:"⊝",CircleDot:"⊙",circledR:"®",circledS:"Ⓢ",CircleMinus:"⊖",CirclePlus:"⊕",CircleTimes:"⊗",cir:"○",cirE:"⧃",cire:"≗",cirfnint:"⨐",cirmid:"⫯",cirscir:"⧂",ClockwiseContourIntegral:"∲",CloseCurlyDoubleQuote:"”",CloseCurlyQuote:"’",clubs:"♣",clubsuit:"♣",colon:":",Colon:"∷",Colone:"⩴",colone:"≔",coloneq:"≔",comma:",",commat:"@",comp:"∁",compfn:"∘",complement:"∁",complexes:"ℂ",cong:"≅",congdot:"⩭",Congruent:"≡",conint:"∮",Conint:"∯",ContourIntegral:"∮",copf:"𝕔",Copf:"ℂ",coprod:"∐",Coproduct:"∐",copy:"©",COPY:"©",copysr:"℗",CounterClockwiseContourIntegral:"∳",crarr:"↵",cross:"✗",Cross:"⨯",Cscr:"𝒞",cscr:"𝒸",csub:"⫏",csube:"⫑",csup:"⫐",csupe:"⫒",ctdot:"⋯",cudarrl:"⤸",cudarrr:"⤵",cuepr:"⋞",cuesc:"⋟",cularr:"↶",cularrp:"⤽",cupbrcap:"⩈",cupcap:"⩆",CupCap:"≍",cup:"∪",Cup:"⋓",cupcup:"⩊",cupdot:"⊍",cupor:"⩅",cups:"∪︀",curarr:"↷",curarrm:"⤼",curlyeqprec:"⋞",curlyeqsucc:"⋟",curlyvee:"⋎",curlywedge:"⋏",curren:"¤",curvearrowleft:"↶",curvearrowright:"↷",cuvee:"⋎",cuwed:"⋏",cwconint:"∲",cwint:"∱",cylcty:"⌭",dagger:"†",Dagger:"‡",daleth:"ℸ",darr:"↓",Darr:"↡",dArr:"⇓",dash:"‐",Dashv:"⫤",dashv:"⊣",dbkarow:"⤏",dblac:"˝",Dcaron:"Ď",dcaron:"ď",Dcy:"Д",dcy:"д",ddagger:"‡",ddarr:"⇊",DD:"ⅅ",dd:"ⅆ",DDotrahd:"⤑",ddotseq:"⩷",deg:"°",Del:"∇",Delta:"Δ",delta:"δ",demptyv:"⦱",dfisht:"⥿",Dfr:"𝔇",dfr:"𝔡",dHar:"⥥",dharl:"⇃",dharr:"⇂",DiacriticalAcute:"´",DiacriticalDot:"˙",DiacriticalDoubleAcute:"˝",DiacriticalGrave:"`",DiacriticalTilde:"˜",diam:"⋄",diamond:"⋄",Diamond:"⋄",diamondsuit:"♦",diams:"♦",die:"¨",DifferentialD:"ⅆ",digamma:"ϝ",disin:"⋲",div:"÷",divide:"÷",divideontimes:"⋇",divonx:"⋇",DJcy:"Ђ",djcy:"ђ",dlcorn:"⌞",dlcrop:"⌍",dollar:"$",Dopf:"𝔻",dopf:"𝕕",Dot:"¨",dot:"˙",DotDot:"⃜",doteq:"≐",doteqdot:"≑",DotEqual:"≐",dotminus:"∸",dotplus:"∔",dotsquare:"⊡",doublebarwedge:"⌆",DoubleContourIntegral:"∯",DoubleDot:"¨",DoubleDownArrow:"⇓",DoubleLeftArrow:"⇐",DoubleLeftRightArrow:"⇔",DoubleLeftTee:"⫤",DoubleLongLeftArrow:"⟸",DoubleLongLeftRightArrow:"⟺",DoubleLongRightArrow:"⟹",DoubleRightArrow:"⇒",DoubleRightTee:"⊨",DoubleUpArrow:"⇑",DoubleUpDownArrow:"⇕",DoubleVerticalBar:"∥",DownArrowBar:"⤓",downarrow:"↓",DownArrow:"↓",Downarrow:"⇓",DownArrowUpArrow:"⇵",DownBreve:"̑",downdownarrows:"⇊",downharpoonleft:"⇃",downharpoonright:"⇂",DownLeftRightVector:"⥐",DownLeftTeeVector:"⥞",DownLeftVectorBar:"⥖",DownLeftVector:"↽",DownRightTeeVector:"⥟",DownRightVectorBar:"⥗",DownRightVector:"⇁",DownTeeArrow:"↧",DownTee:"⊤",drbkarow:"⤐",drcorn:"⌟",drcrop:"⌌",Dscr:"𝒟",dscr:"𝒹",DScy:"Ѕ",dscy:"ѕ",dsol:"⧶",Dstrok:"Đ",dstrok:"đ",dtdot:"⋱",dtri:"▿",dtrif:"▾",duarr:"⇵",duhar:"⥯",dwangle:"⦦",DZcy:"Џ",dzcy:"џ",dzigrarr:"⟿",Eacute:"É",eacute:"é",easter:"⩮",Ecaron:"Ě",ecaron:"ě",Ecirc:"Ê",ecirc:"ê",ecir:"≖",ecolon:"≕",Ecy:"Э",ecy:"э",eDDot:"⩷",Edot:"Ė",edot:"ė",eDot:"≑",ee:"ⅇ",efDot:"≒",Efr:"𝔈",efr:"𝔢",eg:"⪚",Egrave:"È",egrave:"è",egs:"⪖",egsdot:"⪘",el:"⪙",Element:"∈",elinters:"⏧",ell:"ℓ",els:"⪕",elsdot:"⪗",Emacr:"Ē",emacr:"ē",empty:"∅",emptyset:"∅",EmptySmallSquare:"◻",emptyv:"∅",EmptyVerySmallSquare:"▫",emsp13:" ",emsp14:" ",emsp:" ",ENG:"Ŋ",eng:"ŋ",ensp:" ",Eogon:"Ę",eogon:"ę",Eopf:"𝔼",eopf:"𝕖",epar:"⋕",eparsl:"⧣",eplus:"⩱",epsi:"ε",Epsilon:"Ε",epsilon:"ε",epsiv:"ϵ",eqcirc:"≖",eqcolon:"≕",eqsim:"≂",eqslantgtr:"⪖",eqslantless:"⪕",Equal:"⩵",equals:"=",EqualTilde:"≂",equest:"≟",Equilibrium:"⇌",equiv:"≡",equivDD:"⩸",eqvparsl:"⧥",erarr:"⥱",erDot:"≓",escr:"ℯ",Escr:"ℰ",esdot:"≐",Esim:"⩳",esim:"≂",Eta:"Η",eta:"η",ETH:"Ð",eth:"ð",Euml:"Ë",euml:"ë",euro:"€",excl:"!",exist:"∃",Exists:"∃",expectation:"ℰ",exponentiale:"ⅇ",ExponentialE:"ⅇ",fallingdotseq:"≒",Fcy:"Ф",fcy:"ф",female:"♀",ffilig:"ffi",fflig:"ff",ffllig:"ffl",Ffr:"𝔉",ffr:"𝔣",filig:"fi",FilledSmallSquare:"◼",FilledVerySmallSquare:"▪",fjlig:"fj",flat:"♭",fllig:"fl",fltns:"▱",fnof:"ƒ",Fopf:"𝔽",fopf:"𝕗",forall:"∀",ForAll:"∀",fork:"⋔",forkv:"⫙",Fouriertrf:"ℱ",fpartint:"⨍",frac12:"½",frac13:"⅓",frac14:"¼",frac15:"⅕",frac16:"⅙",frac18:"⅛",frac23:"⅔",frac25:"⅖",frac34:"¾",frac35:"⅗",frac38:"⅜",frac45:"⅘",frac56:"⅚",frac58:"⅝",frac78:"⅞",frasl:"⁄",frown:"⌢",fscr:"𝒻",Fscr:"ℱ",gacute:"ǵ",Gamma:"Γ",gamma:"γ",Gammad:"Ϝ",gammad:"ϝ",gap:"⪆",Gbreve:"Ğ",gbreve:"ğ",Gcedil:"Ģ",Gcirc:"Ĝ",gcirc:"ĝ",Gcy:"Г",gcy:"г",Gdot:"Ġ",gdot:"ġ",ge:"≥",gE:"≧",gEl:"⪌",gel:"⋛",geq:"≥",geqq:"≧",geqslant:"⩾",gescc:"⪩",ges:"⩾",gesdot:"⪀",gesdoto:"⪂",gesdotol:"⪄",gesl:"⋛︀",gesles:"⪔",Gfr:"𝔊",gfr:"𝔤",gg:"≫",Gg:"⋙",ggg:"⋙",gimel:"ℷ",GJcy:"Ѓ",gjcy:"ѓ",gla:"⪥",gl:"≷",glE:"⪒",glj:"⪤",gnap:"⪊",gnapprox:"⪊",gne:"⪈",gnE:"≩",gneq:"⪈",gneqq:"≩",gnsim:"⋧",Gopf:"𝔾",gopf:"𝕘",grave:"`",GreaterEqual:"≥",GreaterEqualLess:"⋛",GreaterFullEqual:"≧",GreaterGreater:"⪢",GreaterLess:"≷",GreaterSlantEqual:"⩾",GreaterTilde:"≳",Gscr:"𝒢",gscr:"ℊ",gsim:"≳",gsime:"⪎",gsiml:"⪐",gtcc:"⪧",gtcir:"⩺",gt:">",GT:">",Gt:"≫",gtdot:"⋗",gtlPar:"⦕",gtquest:"⩼",gtrapprox:"⪆",gtrarr:"⥸",gtrdot:"⋗",gtreqless:"⋛",gtreqqless:"⪌",gtrless:"≷",gtrsim:"≳",gvertneqq:"≩︀",gvnE:"≩︀",Hacek:"ˇ",hairsp:" ",half:"½",hamilt:"ℋ",HARDcy:"Ъ",hardcy:"ъ",harrcir:"⥈",harr:"↔",hArr:"⇔",harrw:"↭",Hat:"^",hbar:"ℏ",Hcirc:"Ĥ",hcirc:"ĥ",hearts:"♥",heartsuit:"♥",hellip:"…",hercon:"⊹",hfr:"𝔥",Hfr:"ℌ",HilbertSpace:"ℋ",hksearow:"⤥",hkswarow:"⤦",hoarr:"⇿",homtht:"∻",hookleftarrow:"↩",hookrightarrow:"↪",hopf:"𝕙",Hopf:"ℍ",horbar:"―",HorizontalLine:"─",hscr:"𝒽",Hscr:"ℋ",hslash:"ℏ",Hstrok:"Ħ",hstrok:"ħ",HumpDownHump:"≎",HumpEqual:"≏",hybull:"⁃",hyphen:"‐",Iacute:"Í",iacute:"í",ic:"⁣",Icirc:"Î",icirc:"î",Icy:"И",icy:"и",Idot:"İ",IEcy:"Е",iecy:"е",iexcl:"¡",iff:"⇔",ifr:"𝔦",Ifr:"ℑ",Igrave:"Ì",igrave:"ì",ii:"ⅈ",iiiint:"⨌",iiint:"∭",iinfin:"⧜",iiota:"℩",IJlig:"IJ",ijlig:"ij",Imacr:"Ī",imacr:"ī",image:"ℑ",ImaginaryI:"ⅈ",imagline:"ℐ",imagpart:"ℑ",imath:"ı",Im:"ℑ",imof:"⊷",imped:"Ƶ",Implies:"⇒",incare:"℅","in":"∈",infin:"∞",infintie:"⧝",inodot:"ı",intcal:"⊺","int":"∫",Int:"∬",integers:"ℤ",Integral:"∫",intercal:"⊺",Intersection:"⋂",intlarhk:"⨗",intprod:"⨼",InvisibleComma:"⁣",InvisibleTimes:"⁢",IOcy:"Ё",iocy:"ё",Iogon:"Į",iogon:"į",Iopf:"𝕀",iopf:"𝕚",Iota:"Ι",iota:"ι",iprod:"⨼",iquest:"¿",iscr:"𝒾",Iscr:"ℐ",isin:"∈",isindot:"⋵",isinE:"⋹",isins:"⋴",isinsv:"⋳",isinv:"∈",it:"⁢",Itilde:"Ĩ",itilde:"ĩ",Iukcy:"І",iukcy:"і",Iuml:"Ï",iuml:"ï",Jcirc:"Ĵ",jcirc:"ĵ",Jcy:"Й",jcy:"й",Jfr:"𝔍",jfr:"𝔧",jmath:"ȷ",Jopf:"𝕁",jopf:"𝕛",Jscr:"𝒥",jscr:"𝒿",Jsercy:"Ј",jsercy:"ј",Jukcy:"Є",jukcy:"є",Kappa:"Κ",kappa:"κ",kappav:"ϰ",Kcedil:"Ķ",kcedil:"ķ",Kcy:"К",kcy:"к",Kfr:"𝔎",kfr:"𝔨",kgreen:"ĸ",KHcy:"Х",khcy:"х",KJcy:"Ќ",kjcy:"ќ",Kopf:"𝕂",kopf:"𝕜",Kscr:"𝒦",kscr:"𝓀",lAarr:"⇚",Lacute:"Ĺ",lacute:"ĺ",laemptyv:"⦴",lagran:"ℒ",Lambda:"Λ",lambda:"λ",lang:"⟨",Lang:"⟪",langd:"⦑",langle:"⟨",lap:"⪅",Laplacetrf:"ℒ",laquo:"«",larrb:"⇤",larrbfs:"⤟",larr:"←",Larr:"↞",lArr:"⇐",larrfs:"⤝",larrhk:"↩",larrlp:"↫",larrpl:"⤹",larrsim:"⥳",larrtl:"↢",latail:"⤙",lAtail:"⤛",lat:"⪫",late:"⪭",lates:"⪭︀",lbarr:"⤌",lBarr:"⤎",lbbrk:"❲",lbrace:"{",lbrack:"[",lbrke:"⦋",lbrksld:"⦏",lbrkslu:"⦍",Lcaron:"Ľ",lcaron:"ľ",Lcedil:"Ļ",lcedil:"ļ",lceil:"⌈",lcub:"{",Lcy:"Л",lcy:"л",ldca:"⤶",ldquo:"“",ldquor:"„",ldrdhar:"⥧",ldrushar:"⥋",ldsh:"↲",le:"≤",lE:"≦",LeftAngleBracket:"⟨",LeftArrowBar:"⇤",leftarrow:"←",LeftArrow:"←",Leftarrow:"⇐",LeftArrowRightArrow:"⇆",leftarrowtail:"↢",LeftCeiling:"⌈",LeftDoubleBracket:"⟦",LeftDownTeeVector:"⥡",LeftDownVectorBar:"⥙",LeftDownVector:"⇃",LeftFloor:"⌊",leftharpoondown:"↽",leftharpoonup:"↼",leftleftarrows:"⇇",leftrightarrow:"↔",LeftRightArrow:"↔",Leftrightarrow:"⇔",leftrightarrows:"⇆",leftrightharpoons:"⇋",leftrightsquigarrow:"↭",LeftRightVector:"⥎",LeftTeeArrow:"↤",LeftTee:"⊣",LeftTeeVector:"⥚",leftthreetimes:"⋋",LeftTriangleBar:"⧏",LeftTriangle:"⊲",LeftTriangleEqual:"⊴",LeftUpDownVector:"⥑",LeftUpTeeVector:"⥠",LeftUpVectorBar:"⥘",LeftUpVector:"↿",LeftVectorBar:"⥒",LeftVector:"↼",lEg:"⪋",leg:"⋚",leq:"≤",leqq:"≦",leqslant:"⩽",lescc:"⪨",les:"⩽",lesdot:"⩿",lesdoto:"⪁",lesdotor:"⪃",lesg:"⋚︀",lesges:"⪓",lessapprox:"⪅",lessdot:"⋖",lesseqgtr:"⋚",lesseqqgtr:"⪋",LessEqualGreater:"⋚",LessFullEqual:"≦",LessGreater:"≶",lessgtr:"≶",LessLess:"⪡",lesssim:"≲",LessSlantEqual:"⩽",LessTilde:"≲",lfisht:"⥼",lfloor:"⌊",Lfr:"𝔏",lfr:"𝔩",lg:"≶",lgE:"⪑",lHar:"⥢",lhard:"↽",lharu:"↼",lharul:"⥪",lhblk:"▄",LJcy:"Љ",ljcy:"љ",llarr:"⇇",ll:"≪",Ll:"⋘",llcorner:"⌞",Lleftarrow:"⇚",llhard:"⥫",lltri:"◺",Lmidot:"Ŀ",lmidot:"ŀ",lmoustache:"⎰",lmoust:"⎰",lnap:"⪉",lnapprox:"⪉",lne:"⪇",lnE:"≨",lneq:"⪇",lneqq:"≨",lnsim:"⋦",loang:"⟬",loarr:"⇽",lobrk:"⟦",longleftarrow:"⟵",LongLeftArrow:"⟵",Longleftarrow:"⟸",longleftrightarrow:"⟷",LongLeftRightArrow:"⟷",Longleftrightarrow:"⟺",longmapsto:"⟼",longrightarrow:"⟶",LongRightArrow:"⟶",Longrightarrow:"⟹",looparrowleft:"↫",looparrowright:"↬",lopar:"⦅",Lopf:"𝕃",lopf:"𝕝",loplus:"⨭",lotimes:"⨴",lowast:"∗",lowbar:"_",LowerLeftArrow:"↙",LowerRightArrow:"↘",loz:"◊",lozenge:"◊",lozf:"⧫",lpar:"(",lparlt:"⦓",lrarr:"⇆",lrcorner:"⌟",lrhar:"⇋",lrhard:"⥭",lrm:"‎",lrtri:"⊿",lsaquo:"‹",lscr:"𝓁",Lscr:"ℒ",lsh:"↰",Lsh:"↰",lsim:"≲",lsime:"⪍",lsimg:"⪏",lsqb:"[",lsquo:"‘",lsquor:"‚",Lstrok:"Ł",lstrok:"ł",ltcc:"⪦",ltcir:"⩹",lt:"<",LT:"<",Lt:"≪",ltdot:"⋖",lthree:"⋋",ltimes:"⋉",ltlarr:"⥶",ltquest:"⩻",ltri:"◃",ltrie:"⊴",ltrif:"◂",ltrPar:"⦖",lurdshar:"⥊",luruhar:"⥦",lvertneqq:"≨︀",lvnE:"≨︀",macr:"¯",male:"♂",malt:"✠",maltese:"✠",Map:"⤅",map:"↦",mapsto:"↦",mapstodown:"↧",mapstoleft:"↤",mapstoup:"↥",marker:"▮",mcomma:"⨩",Mcy:"М",mcy:"м",mdash:"—",mDDot:"∺",measuredangle:"∡",MediumSpace:" ",Mellintrf:"ℳ",Mfr:"𝔐",mfr:"𝔪",mho:"℧",micro:"µ",midast:"*",midcir:"⫰",mid:"∣",middot:"·",minusb:"⊟",minus:"−",minusd:"∸",minusdu:"⨪",MinusPlus:"∓",mlcp:"⫛",mldr:"…",mnplus:"∓",models:"⊧",Mopf:"𝕄",mopf:"𝕞",mp:"∓",mscr:"𝓂",Mscr:"ℳ",mstpos:"∾",Mu:"Μ",mu:"μ",multimap:"⊸",mumap:"⊸",nabla:"∇",Nacute:"Ń",nacute:"ń",nang:"∠⃒",nap:"≉",napE:"⩰̸",napid:"≋̸",napos:"ʼn",napprox:"≉",natural:"♮",naturals:"ℕ",natur:"♮",nbsp:" ",nbump:"≎̸",nbumpe:"≏̸",ncap:"⩃",Ncaron:"Ň",ncaron:"ň",Ncedil:"Ņ",ncedil:"ņ",ncong:"≇",ncongdot:"⩭̸",ncup:"⩂",Ncy:"Н",ncy:"н",ndash:"–",nearhk:"⤤",nearr:"↗",neArr:"⇗",nearrow:"↗",ne:"≠",nedot:"≐̸",NegativeMediumSpace:"​",NegativeThickSpace:"​",NegativeThinSpace:"​",NegativeVeryThinSpace:"​",nequiv:"≢",nesear:"⤨",nesim:"≂̸",NestedGreaterGreater:"≫",NestedLessLess:"≪",NewLine:"\n",nexist:"∄",nexists:"∄",Nfr:"𝔑",nfr:"𝔫",ngE:"≧̸",nge:"≱",ngeq:"≱",ngeqq:"≧̸",ngeqslant:"⩾̸",nges:"⩾̸",nGg:"⋙̸",ngsim:"≵",nGt:"≫⃒",ngt:"≯",ngtr:"≯",nGtv:"≫̸",nharr:"↮",nhArr:"⇎",nhpar:"⫲",ni:"∋",nis:"⋼",nisd:"⋺",niv:"∋",NJcy:"Њ",njcy:"њ",nlarr:"↚",nlArr:"⇍",nldr:"‥",nlE:"≦̸",nle:"≰",nleftarrow:"↚",nLeftarrow:"⇍",nleftrightarrow:"↮",nLeftrightarrow:"⇎",nleq:"≰",nleqq:"≦̸",nleqslant:"⩽̸",nles:"⩽̸",nless:"≮",nLl:"⋘̸",nlsim:"≴",nLt:"≪⃒",nlt:"≮",nltri:"⋪",nltrie:"⋬",nLtv:"≪̸",nmid:"∤",NoBreak:"⁠",NonBreakingSpace:" ",nopf:"𝕟",Nopf:"ℕ",Not:"⫬",not:"¬",NotCongruent:"≢",NotCupCap:"≭",NotDoubleVerticalBar:"∦",NotElement:"∉",NotEqual:"≠",NotEqualTilde:"≂̸",NotExists:"∄",NotGreater:"≯",NotGreaterEqual:"≱",NotGreaterFullEqual:"≧̸",NotGreaterGreater:"≫̸",NotGreaterLess:"≹",NotGreaterSlantEqual:"⩾̸",NotGreaterTilde:"≵",NotHumpDownHump:"≎̸",NotHumpEqual:"≏̸",notin:"∉",notindot:"⋵̸",notinE:"⋹̸",notinva:"∉",notinvb:"⋷",notinvc:"⋶",NotLeftTriangleBar:"⧏̸",NotLeftTriangle:"⋪",NotLeftTriangleEqual:"⋬",NotLess:"≮",NotLessEqual:"≰",NotLessGreater:"≸",NotLessLess:"≪̸",NotLessSlantEqual:"⩽̸",NotLessTilde:"≴",NotNestedGreaterGreater:"⪢̸",NotNestedLessLess:"⪡̸",notni:"∌",notniva:"∌",notnivb:"⋾",notnivc:"⋽",NotPrecedes:"⊀",NotPrecedesEqual:"⪯̸",NotPrecedesSlantEqual:"⋠",NotReverseElement:"∌",NotRightTriangleBar:"⧐̸",NotRightTriangle:"⋫",NotRightTriangleEqual:"⋭",NotSquareSubset:"⊏̸",NotSquareSubsetEqual:"⋢",NotSquareSuperset:"⊐̸",NotSquareSupersetEqual:"⋣",NotSubset:"⊂⃒",NotSubsetEqual:"⊈",NotSucceeds:"⊁",NotSucceedsEqual:"⪰̸",NotSucceedsSlantEqual:"⋡",NotSucceedsTilde:"≿̸",NotSuperset:"⊃⃒",NotSupersetEqual:"⊉",NotTilde:"≁",NotTildeEqual:"≄",NotTildeFullEqual:"≇",NotTildeTilde:"≉",NotVerticalBar:"∤",nparallel:"∦",npar:"∦",nparsl:"⫽⃥",npart:"∂̸",npolint:"⨔",npr:"⊀",nprcue:"⋠",nprec:"⊀",npreceq:"⪯̸",npre:"⪯̸",nrarrc:"⤳̸",nrarr:"↛",nrArr:"⇏",nrarrw:"↝̸",nrightarrow:"↛",nRightarrow:"⇏",nrtri:"⋫",nrtrie:"⋭",nsc:"⊁",nsccue:"⋡",nsce:"⪰̸",Nscr:"𝒩",nscr:"𝓃",nshortmid:"∤",nshortparallel:"∦",nsim:"≁",nsime:"≄",nsimeq:"≄",nsmid:"∤",nspar:"∦",nsqsube:"⋢",nsqsupe:"⋣",nsub:"⊄",nsubE:"⫅̸",nsube:"⊈",nsubset:"⊂⃒",nsubseteq:"⊈",nsubseteqq:"⫅̸",nsucc:"⊁",nsucceq:"⪰̸",nsup:"⊅",nsupE:"⫆̸",nsupe:"⊉",nsupset:"⊃⃒",nsupseteq:"⊉",nsupseteqq:"⫆̸",ntgl:"≹",Ntilde:"Ñ",ntilde:"ñ",ntlg:"≸",ntriangleleft:"⋪",ntrianglelefteq:"⋬",ntriangleright:"⋫",ntrianglerighteq:"⋭",Nu:"Ν",nu:"ν",num:"#",numero:"№",numsp:" ",nvap:"≍⃒",nvdash:"⊬",nvDash:"⊭",nVdash:"⊮",nVDash:"⊯",nvge:"≥⃒",nvgt:">⃒",nvHarr:"⤄",nvinfin:"⧞",nvlArr:"⤂",nvle:"≤⃒",nvlt:"<⃒",nvltrie:"⊴⃒",nvrArr:"⤃",nvrtrie:"⊵⃒",nvsim:"∼⃒",nwarhk:"⤣",nwarr:"↖",nwArr:"⇖",nwarrow:"↖",nwnear:"⤧",Oacute:"Ó",oacute:"ó",oast:"⊛",Ocirc:"Ô",ocirc:"ô",ocir:"⊚",Ocy:"О",ocy:"о",odash:"⊝",Odblac:"Ő",odblac:"ő",odiv:"⨸",odot:"⊙",odsold:"⦼",OElig:"Œ",oelig:"œ",ofcir:"⦿",Ofr:"𝔒",ofr:"𝔬",ogon:"˛",Ograve:"Ò",ograve:"ò",ogt:"⧁",ohbar:"⦵",ohm:"Ω",oint:"∮",olarr:"↺",olcir:"⦾",olcross:"⦻",oline:"‾",olt:"⧀",Omacr:"Ō",omacr:"ō",Omega:"Ω",omega:"ω",Omicron:"Ο",omicron:"ο",omid:"⦶",ominus:"⊖",Oopf:"𝕆",oopf:"𝕠",opar:"⦷",OpenCurlyDoubleQuote:"“",OpenCurlyQuote:"‘",operp:"⦹",oplus:"⊕",orarr:"↻",Or:"⩔",or:"∨",ord:"⩝",order:"ℴ",orderof:"ℴ",ordf:"ª",ordm:"º",origof:"⊶",oror:"⩖",orslope:"⩗",orv:"⩛",oS:"Ⓢ",Oscr:"𝒪",oscr:"ℴ",Oslash:"Ø",oslash:"ø",osol:"⊘",Otilde:"Õ",otilde:"õ",otimesas:"⨶",Otimes:"⨷",otimes:"⊗",Ouml:"Ö",ouml:"ö",ovbar:"⌽",OverBar:"‾",OverBrace:"⏞",OverBracket:"⎴",OverParenthesis:"⏜",para:"¶",parallel:"∥",par:"∥",parsim:"⫳",parsl:"⫽",part:"∂",PartialD:"∂",Pcy:"П",pcy:"п",percnt:"%",period:".",permil:"‰",perp:"⊥",pertenk:"‱",Pfr:"𝔓",pfr:"𝔭",Phi:"Φ",phi:"φ",phiv:"ϕ",phmmat:"ℳ",phone:"☎",Pi:"Π",pi:"π",pitchfork:"⋔",piv:"ϖ",planck:"ℏ",planckh:"ℎ",plankv:"ℏ",plusacir:"⨣",plusb:"⊞",pluscir:"⨢",plus:"+",plusdo:"∔",plusdu:"⨥",pluse:"⩲",PlusMinus:"±",plusmn:"±",plussim:"⨦",plustwo:"⨧",pm:"±",Poincareplane:"ℌ",pointint:"⨕",popf:"𝕡",Popf:"ℙ",pound:"£",prap:"⪷",Pr:"⪻",pr:"≺",prcue:"≼",precapprox:"⪷",prec:"≺",preccurlyeq:"≼",Precedes:"≺",PrecedesEqual:"⪯",PrecedesSlantEqual:"≼",PrecedesTilde:"≾",preceq:"⪯",precnapprox:"⪹",precneqq:"⪵",precnsim:"⋨",pre:"⪯",prE:"⪳",precsim:"≾",prime:"′",Prime:"″",primes:"ℙ",prnap:"⪹",prnE:"⪵",prnsim:"⋨",prod:"∏",Product:"∏",profalar:"⌮",profline:"⌒",profsurf:"⌓",prop:"∝",Proportional:"∝",Proportion:"∷",propto:"∝",prsim:"≾",prurel:"⊰",Pscr:"𝒫",pscr:"𝓅",Psi:"Ψ",psi:"ψ",puncsp:" ",Qfr:"𝔔",qfr:"𝔮",qint:"⨌",qopf:"𝕢",Qopf:"ℚ",qprime:"⁗",Qscr:"𝒬",qscr:"𝓆",quaternions:"ℍ",quatint:"⨖",quest:"?",questeq:"≟",quot:'"',QUOT:'"',rAarr:"⇛",race:"∽̱",Racute:"Ŕ",racute:"ŕ",radic:"√",raemptyv:"⦳",rang:"⟩",Rang:"⟫",rangd:"⦒",range:"⦥",rangle:"⟩",raquo:"»",rarrap:"⥵",rarrb:"⇥",rarrbfs:"⤠",rarrc:"⤳",rarr:"→",Rarr:"↠",rArr:"⇒",rarrfs:"⤞",rarrhk:"↪",rarrlp:"↬",rarrpl:"⥅",rarrsim:"⥴",Rarrtl:"⤖",rarrtl:"↣",rarrw:"↝",ratail:"⤚",rAtail:"⤜",ratio:"∶",rationals:"ℚ",rbarr:"⤍",rBarr:"⤏",RBarr:"⤐",rbbrk:"❳",rbrace:"}",rbrack:"]",rbrke:"⦌",rbrksld:"⦎",rbrkslu:"⦐",Rcaron:"Ř",rcaron:"ř",Rcedil:"Ŗ",rcedil:"ŗ",rceil:"⌉",rcub:"}",Rcy:"Р",rcy:"р",rdca:"⤷",rdldhar:"⥩",rdquo:"”",rdquor:"”",rdsh:"↳",real:"ℜ",realine:"ℛ",realpart:"ℜ",reals:"ℝ",Re:"ℜ",rect:"▭",reg:"®",REG:"®",ReverseElement:"∋",ReverseEquilibrium:"⇋",ReverseUpEquilibrium:"⥯",rfisht:"⥽",rfloor:"⌋",rfr:"𝔯",Rfr:"ℜ",rHar:"⥤",rhard:"⇁",rharu:"⇀",rharul:"⥬",Rho:"Ρ",rho:"ρ",rhov:"ϱ",RightAngleBracket:"⟩",RightArrowBar:"⇥",rightarrow:"→",RightArrow:"→",Rightarrow:"⇒",RightArrowLeftArrow:"⇄",rightarrowtail:"↣",RightCeiling:"⌉",RightDoubleBracket:"⟧",RightDownTeeVector:"⥝",RightDownVectorBar:"⥕",RightDownVector:"⇂",RightFloor:"⌋",rightharpoondown:"⇁",rightharpoonup:"⇀",rightleftarrows:"⇄",rightleftharpoons:"⇌",rightrightarrows:"⇉",rightsquigarrow:"↝",RightTeeArrow:"↦",RightTee:"⊢",RightTeeVector:"⥛",rightthreetimes:"⋌",RightTriangleBar:"⧐",RightTriangle:"⊳",RightTriangleEqual:"⊵",RightUpDownVector:"⥏",RightUpTeeVector:"⥜",RightUpVectorBar:"⥔",RightUpVector:"↾",RightVectorBar:"⥓",RightVector:"⇀",ring:"˚",risingdotseq:"≓",rlarr:"⇄",rlhar:"⇌",rlm:"‏",rmoustache:"⎱",rmoust:"⎱",rnmid:"⫮",roang:"⟭",roarr:"⇾",robrk:"⟧",ropar:"⦆",ropf:"𝕣",Ropf:"ℝ",roplus:"⨮",rotimes:"⨵",RoundImplies:"⥰",rpar:")",rpargt:"⦔",rppolint:"⨒",rrarr:"⇉",Rrightarrow:"⇛",rsaquo:"›",rscr:"𝓇",Rscr:"ℛ",rsh:"↱",Rsh:"↱",rsqb:"]",rsquo:"’",rsquor:"’",rthree:"⋌",rtimes:"⋊",rtri:"▹",rtrie:"⊵",rtrif:"▸",rtriltri:"⧎",RuleDelayed:"⧴",ruluhar:"⥨",rx:"℞",Sacute:"Ś",sacute:"ś",sbquo:"‚",scap:"⪸",Scaron:"Š",scaron:"š",Sc:"⪼",sc:"≻",sccue:"≽",sce:"⪰",scE:"⪴",Scedil:"Ş",scedil:"ş",Scirc:"Ŝ",scirc:"ŝ",scnap:"⪺",scnE:"⪶",scnsim:"⋩",scpolint:"⨓",scsim:"≿",Scy:"С",scy:"с",sdotb:"⊡",sdot:"⋅",sdote:"⩦",searhk:"⤥",searr:"↘",seArr:"⇘",searrow:"↘",sect:"§",semi:";",seswar:"⤩",setminus:"∖",setmn:"∖",sext:"✶",Sfr:"𝔖",sfr:"𝔰",sfrown:"⌢",sharp:"♯",SHCHcy:"Щ",shchcy:"щ",SHcy:"Ш",shcy:"ш",ShortDownArrow:"↓",ShortLeftArrow:"←",shortmid:"∣",shortparallel:"∥",ShortRightArrow:"→",ShortUpArrow:"↑",shy:"­",Sigma:"Σ",sigma:"σ",sigmaf:"ς",sigmav:"ς",sim:"∼",simdot:"⩪",sime:"≃",simeq:"≃",simg:"⪞",simgE:"⪠",siml:"⪝",simlE:"⪟",simne:"≆",simplus:"⨤",simrarr:"⥲",slarr:"←",SmallCircle:"∘",smallsetminus:"∖",smashp:"⨳",smeparsl:"⧤",smid:"∣",smile:"⌣",smt:"⪪",smte:"⪬",smtes:"⪬︀",SOFTcy:"Ь",softcy:"ь",solbar:"⌿",solb:"⧄",sol:"/",Sopf:"𝕊",sopf:"𝕤",spades:"♠",spadesuit:"♠",spar:"∥",sqcap:"⊓",sqcaps:"⊓︀",sqcup:"⊔",sqcups:"⊔︀",Sqrt:"√",sqsub:"⊏",sqsube:"⊑",sqsubset:"⊏",sqsubseteq:"⊑",sqsup:"⊐",sqsupe:"⊒",sqsupset:"⊐",sqsupseteq:"⊒",square:"□",Square:"□",SquareIntersection:"⊓",SquareSubset:"⊏",SquareSubsetEqual:"⊑",SquareSuperset:"⊐",SquareSupersetEqual:"⊒",SquareUnion:"⊔",squarf:"▪",squ:"□",squf:"▪",srarr:"→",Sscr:"𝒮",sscr:"𝓈",ssetmn:"∖",ssmile:"⌣",sstarf:"⋆",Star:"⋆",star:"☆",starf:"★",straightepsilon:"ϵ",straightphi:"ϕ",strns:"¯",sub:"⊂",Sub:"⋐",subdot:"⪽",subE:"⫅",sube:"⊆",subedot:"⫃",submult:"⫁",subnE:"⫋",subne:"⊊",subplus:"⪿",subrarr:"⥹",subset:"⊂",Subset:"⋐",subseteq:"⊆",subseteqq:"⫅",SubsetEqual:"⊆",subsetneq:"⊊",subsetneqq:"⫋",subsim:"⫇",subsub:"⫕",subsup:"⫓",succapprox:"⪸",succ:"≻",succcurlyeq:"≽",Succeeds:"≻",SucceedsEqual:"⪰",SucceedsSlantEqual:"≽",SucceedsTilde:"≿",succeq:"⪰",succnapprox:"⪺",succneqq:"⪶",succnsim:"⋩",succsim:"≿",SuchThat:"∋",sum:"∑",Sum:"∑",sung:"♪",sup1:"¹",sup2:"²",sup3:"³",sup:"⊃",Sup:"⋑",supdot:"⪾",supdsub:"⫘",supE:"⫆",supe:"⊇",supedot:"⫄",Superset:"⊃",SupersetEqual:"⊇",suphsol:"⟉",suphsub:"⫗",suplarr:"⥻",supmult:"⫂",supnE:"⫌",supne:"⊋",supplus:"⫀",supset:"⊃",Supset:"⋑",supseteq:"⊇",supseteqq:"⫆",supsetneq:"⊋",supsetneqq:"⫌",supsim:"⫈",supsub:"⫔",supsup:"⫖",swarhk:"⤦",swarr:"↙",swArr:"⇙",swarrow:"↙",swnwar:"⤪",szlig:"ß",Tab:"	",target:"⌖",Tau:"Τ",tau:"τ",tbrk:"⎴",Tcaron:"Ť",tcaron:"ť",Tcedil:"Ţ",tcedil:"ţ",Tcy:"Т",tcy:"т",tdot:"⃛",telrec:"⌕",Tfr:"𝔗",tfr:"𝔱",there4:"∴",therefore:"∴",Therefore:"∴",Theta:"Θ",theta:"θ",thetasym:"ϑ",thetav:"ϑ",thickapprox:"≈",thicksim:"∼",ThickSpace:"  ",ThinSpace:" ",thinsp:" ",thkap:"≈",thksim:"∼",THORN:"Þ",thorn:"þ",tilde:"˜",Tilde:"∼",TildeEqual:"≃",TildeFullEqual:"≅",TildeTilde:"≈",timesbar:"⨱",timesb:"⊠",times:"×",timesd:"⨰",tint:"∭",toea:"⤨",topbot:"⌶",topcir:"⫱",top:"⊤",Topf:"𝕋",topf:"𝕥",topfork:"⫚",tosa:"⤩",tprime:"‴",trade:"™",TRADE:"™",triangle:"▵",triangledown:"▿",triangleleft:"◃",trianglelefteq:"⊴",triangleq:"≜",triangleright:"▹",trianglerighteq:"⊵",tridot:"◬",trie:"≜",triminus:"⨺",TripleDot:"⃛",triplus:"⨹",trisb:"⧍",tritime:"⨻",trpezium:"⏢",Tscr:"𝒯",tscr:"𝓉",TScy:"Ц",tscy:"ц",TSHcy:"Ћ",tshcy:"ћ",Tstrok:"Ŧ",tstrok:"ŧ",twixt:"≬",twoheadleftarrow:"↞",twoheadrightarr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window?window:{})},{"./graphDb":6,"./parser/flow":7,"./sequenceRenderer":10,"./utils":11,he:4}],6:[function(require,module,exports){var vertices={},edges=[],classes=[],direction,funs=[];exports.addVertex=function(r,e,t,u){"undefined"==typeof vertices[r]&&(vertices[r]={id:r,styles:[],classes:[]}),"undefined"!=typeof e&&(vertices[r].text=e),"undefined"!=typeof t&&(vertices[r].type=t),"undefined"!=typeof t&&(vertices[r].type=t),"undefined"!=typeof u&&null!==u&&u.forEach(function(e){vertices[r].styles.push(e)})},exports.addLink=function(r,e,t,u){var s={start:r,end:e,type:void 0,text:""},u=t.text;"undefined"!=typeof u&&(s.text=u),"undefined"!=typeof t&&(s.type=t.type),edges.push(s)},exports.updateLink=function(r,e){r.substr(1);edges[r].style=e},exports.addClass=function(r,e){"undefined"==typeof classes[r]&&(classes[r]={id:r,styles:[]}),"undefined"!=typeof e&&null!==e&&e.forEach(function(e){classes[r].styles.push(e)})},exports.setDirection=function(r){direction=r},exports.setClass=function(r,e){r.indexOf(",")>0?r.split(",").forEach(function(r){"undefined"!=typeof vertices[r]&&vertices[r].classes.push(e)}):"undefined"!=typeof vertices[r]&&vertices[r].classes.push(e)},exports.setClickEvent=function(id,functionName){id.indexOf(",")>0?id.split(",").forEach(function(id2){"undefined"!=typeof vertices[id2]&&funs.push(function(){var elem=document.getElementById(id2);null!==elem&&(elem.onclick=function(){eval(functionName+"('"+id2+"')")})})}):"undefined"!=typeof vertices[id]&&funs.push(function(){var elem=document.getElementById(id);null!==elem&&(elem.onclick=function(){eval(functionName+"('"+id+"')")})})},exports.bindFunctions=function(){funs.forEach(function(r){r()})},exports.getDirection=function(){return direction},exports.getVertices=function(){return vertices},exports.getEdges=function(){return edges},exports.getClasses=function(){return 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new Error(r);this.trace(r)},parse:function(r){function e(){var r;return r=f.lex()||h,"number"!=typeof r&&(r=t.symbols_[r]||r),r}var t=this,u=[0],s=[null],a=[],n=this.table,i="",o=0,c=0,l=0,p=2,h=1,d=a.slice.call(arguments,1),f=Object.create(this.lexer),g={yy:{}};for(var m in this.yy)Object.prototype.hasOwnProperty.call(this.yy,m)&&(g.yy[m]=this.yy[m]);f.setInput(r,g.yy),g.yy.lexer=f,g.yy.parser=this,"undefined"==typeof f.yylloc&&(f.yylloc={});var y=f.yylloc;a.push(y);var b=f.options&&f.options.ranges;this.parseError="function"==typeof g.yy.parseError?g.yy.parseError:Object.getPrototypeOf(this).parseError;for(var A,D,v,E,w,x,F,k,C,B={};;){if(v=u[u.length-1],this.defaultActions[v]?E=this.defaultActions[v]:((null===A||"undefined"==typeof A)&&(A=e()),E=n[v]&&n[v][A]),"undefined"==typeof E||!E.length||!E[0]){var q="";C=[];for(x in n[v])this.terminals_[x]&&x>p&&C.push("'"+this.terminals_[x]+"'");q=f.showPosition?"Parse error on line "+(o+1)+":\n"+f.showPosition()+"\nExpecting "+C.join(", ")+", got '"+(this.terminals_[A]||A)+"'":"Parse error on line "+(o+1)+": Unexpected "+(A==h?"end of input":"'"+(this.terminals_[A]||A)+"'"),this.parseError(q,{text:f.match,token:this.terminals_[A]||A,line:f.yylineno,loc:y,expected:C})}if(E[0]instanceof Array&&E.length>1)throw new Error("Parse Error: multiple actions possible at state: "+v+", token: "+A);switch(E[0]){case 1:u.push(A),s.push(f.yytext),a.push(f.yylloc),u.push(E[1]),A=null,D?(A=D,D=null):(c=f.yyleng,i=f.yytext,o=f.yylineno,y=f.yylloc,l>0&&l--);break;case 2:if(F=this.productions_[E[1]][1],B.$=s[s.length-F],B._$={first_line:a[a.length-(F||1)].first_line,last_line:a[a.length-1].last_line,first_column:a[a.length-(F||1)].first_column,last_column:a[a.length-1].last_column},b&&(B._$.range=[a[a.length-(F||1)].range[0],a[a.length-1].range[1]]),w=this.performAction.apply(B,[i,c,o,g.yy,E[1],s,a].concat(d)),"undefined"!=typeof w)return w;F&&(u=u.slice(0,-1*F*2),s=s.slice(0,-1*F),a=a.slice(0,-1*F)),u.push(this.productions_[E[1]][0]),s.push(B.$),a.push(B._$),k=n[u[u.length-2]][u[u.length-1]],u.push(k);break;case 3:return!0}}return!0}},re=function(){var r={EOF:1,parseError:function(r,e){if(!this.yy.parser)throw new Error(r);this.yy.parser.parseError(r,e)},setInput:function(r,e){return this.yy=e||this.yy||{},this._input=r,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},input:function(){var r=this._input[0];this.yytext+=r,this.yyleng++,this.offset++,this.match+=r,this.matched+=r;var e=r.match(/(?:\r\n?|\n).*/g);return e?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),r},unput:function(r){var e=r.length,t=r.split(/(?:\r\n?|\n)/g);this._input=r+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-e),this.offset-=e;var u=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),t.length-1&&(this.yylineno-=t.length-1);var s=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:t?(t.length===u.length?this.yylloc.first_column:0)+u[u.length-t.length].length-t[0].length:this.yylloc.first_column-e},this.options.ranges&&(this.yylloc.range=[s[0],s[0]+this.yyleng-e]),this.yyleng=this.yytext.length,this},more:function(){return this._more=!0,this},reject:function(){return this.options.backtrack_lexer?(this._backtrack=!0,this):this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},less:function(r){this.unput(this.match.slice(r))},pastInput:function(){var r=this.matched.substr(0,this.matched.length-this.match.length);return(r.length>20?"...":"")+r.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var r=this.match;return r.length<20&&(r+=this._input.substr(0,20-r.length)),(r.substr(0,20)+(r.length>20?"...":"")).replace(/\n/g,"")},showPosition:function(){var r=this.pastInput(),e=new Array(r.length+1).join("-");return r+this.upcomingInput()+"\n"+e+"^"},test_match:function(r,e){var t,u,s;if(this.options.backtrack_lexer&&(s={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(s.yylloc.range=this.yylloc.range.slice(0))),u=r[0].match(/(?:\r\n?|\n).*/g),u&&(this.yylineno+=u.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:u?u[u.length-1].length-u[u.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+r[0].length},this.yytext+=r[0],this.match+=r[0],this.matches=r,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(r[0].length),this.matched+=r[0],t=this.performAction.call(this,this.yy,this,e,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),t)return t;if(this._backtrack){for(var a in s)this[a]=s[a];return!1}return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var r,e,t,u;this._more||(this.yytext="",this.match="");for(var s=this._currentRules(),a=0;a<s.length;a++)if(t=this._input.match(this.rules[s[a]]),t&&(!e||t[0].length>e[0].length)){if(e=t,u=a,this.options.backtrack_lexer){if(r=this.test_match(t,s[a]),r!==!1)return r;if(this._backtrack){e=!1;continue}return!1}if(!this.options.flex)break}return e?(r=this.test_match(e,s[u]),r!==!1?r:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var r=this.next();return r?r:this.lex()},begin:function(r){this.conditionStack.push(r)},popState:function(){var r=this.conditionStack.length-1;return r>0?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(r){return r=this.conditionStack.length-1-Math.abs(r||0),r>=0?this.conditionStack[r]:"INITIAL"},pushState:function(r){this.begin(r)},stateStackSize:function(){return this.conditionStack.length},options:{},performAction:function(r,e,t,u){switch(t){case 0:return 58;case 1:return 60;case 2:return 54;case 3:return 56;case 4:return 57;case 5:return 8;case 6:return 10;case 7:return 10;case 8:return 10;case 9:return 10;case 10:return 10;case 11:return 10;case 12:return 35;case 13:return 42;case 14:return 36;case 15:return 11;case 16:return 37;case 17:return 39;case 18:return 40;case 19:return 41;case 20:return 30;case 21:return 29;case 22:return 47;case 23:return 45;case 24:return 46;case 25:return 48;case 26:return 33;case 27:return 38;case 28:return 39;case 29:return 34;case 30:return 49;case 31:return 25;case 32:return 26;case 33:return 22;case 34:return 24;case 35:return 27;case 36:return 28;case 37:return"QUOTE";case 38:return 9;case 39:return"NEWLINE";case 40:return 6}},rules:[/^(?:style\b)/,/^(?:linkStyle\b)/,/^(?:classDef\b)/,/^(?:class\b)/,/^(?:click\b)/,/^(?:graph\b)/,/^(?:LR\b)/,/^(?:RL\b)/,/^(?:TB\b)/,/^(?:BT\b)/,/^(?:TD\b)/,/^(?:BR\b)/,/^(?:[0-9])/,/^(?:#)/,/^(?::)/,/^(?:;)/,/^(?:,)/,/^(?:=)/,/^(?:\*)/,/^(?:\.)/,/^(?:<)/,/^(?:>)/,/^(?:--[x])/,/^(?:-->)/,/^(?:--[o])/,/^(?:---)/,/^(?:-)/,/^(?:\+)/,/^(?:=)/,/^(?:[\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6]|[\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377]|[\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5]|[\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA]|[\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE]|[\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA]|[\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0]|[\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977]|[\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2]|[\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A]|[\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39]|[\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8]|[\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C]|[\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C]|[\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99]|[\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0]|[\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D]|[\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3]|[\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10]|[\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1]|[\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81]|[\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3]|[\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6]|[\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A]|[\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081]|[\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D]|[\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0]|[\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310]|[\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C]|[\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711]|[\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7]|[\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C]|[\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16]|[\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF]|[\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC]|[\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D]|[\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D]|[\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3]|[\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F]|[\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128]|[\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184]|[\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3]|[\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6]|[\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE]|[\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C]|[\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D]|[\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC]|[\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B]|[\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788]|[\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805]|[\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB]|[\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28]|[\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5]|[\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4]|[\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E]|[\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D]|[\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36]|[\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D]|[\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC]|[\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF]|[\uFFD2-\uFFD7\uFFDA-\uFFDC_])/,/^(?:\|)/,/^(?:\()/,/^(?:\))/,/^(?:\[)/,/^(?:\])/,/^(?:\{)/,/^(?:\})/,/^(?:")/,/^(?:\s)/,/^(?:\n)/,/^(?:$)/],conditions:{INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40],inclusive:!0}}};return r}();return X.lexer=re,r.prototype=X,X.Parser=r,new r}();"undefined"!=typeof r&&"undefined"!=typeof t&&(t.parser=s,t.Parser=s.Parser,t.parse=function(){return s.parse.apply(s,arguments)},t.main=function(e){e[1]||(console.log("Usage: "+e[0]+" FILE"),u.exit(1));var s=r("fs").readFileSync(r("path").normalize(e[1]),"utf8");return t.parser.parse(s)},"undefined"!=typeof e&&r.main===e&&t.main(u.argv.slice(1)))}).call(this,r("1YiZ5S"))},{"1YiZ5S":3,fs:1,path:2}],8:[function(r,e,t){(function(u){var s=function(){function r(){this.yy={}}var e=function(r,e,t,u){for(t=t||{},u=r.length;u--;t[r[u]]=e);return t},t=[1,11],u=[1,12],s=[1,17],a=[1,16],n=[6,8,28],i=[6,8,14,16,28,31,32],o=[6,8,14,16,18,28,31,32],c=[6,31,32],l=[1,35],p=[6,8,16,18,28,31,32],h={trace:function(){},yy:{},symbols_:{error:2,expressions:3,sequenceConfig:4,statements:5,EOF:6,SEQ:7,SPACE:8,DIR:9,newlines:10,statement:11,preStatement:12,alphaNum:13,COLON:14,text:15,DOT:16,message:17,EQUALS:18,callee:19,action:20,SQS:21,SQE:22,actorDefinition:23,messageDefinition:24,caller:25,answer:26,spaceList:27,NEWLINE:28,alphaNumStatement:29,alphaNumToken:30,ALPHA:31,NUM:32,textStatement:33,textToken:34,$accept:0,$end:1},terminals_:{2:"error",6:"EOF",7:"SEQ",8:"SPACE",9:"DIR",14:"COLON",16:"DOT",18:"EQUALS",21:"SQS",22:"SQE",28:"NEWLINE",31:"ALPHA",32:"NUM"},productions_:[0,[3,2],[3,1],[4,4],[5,3],[5,2],[5,3],[12,3],[11,1],[11,3],[11,5],[20,2],[23,3],[24,7],[25,1],[26,1],[19,1],[17,1],[27,2],[27,1],[10,2],[10,2],[10,1],[10,1],[13,1],[29,2],[29,1],[30,1],[30,1],[15,1],[33,2],[33,1],[34,1],[34,1]],performAction:function(r,e,t,u,s,a){var n=a.length-1;switch(s){case 1:case 5:this.$=a[n-1];break;case 3:this.$=a[n-1];break;case 4:case 6:this.$=a[n-2];break;case 7:this.$={a:a[n-2],b:a[n]};break;case 8:u.addActor(a[n].a,"actor",a[n].b),this.$="actor";
-break;case 9:u.addMessage(a[n-2].a,a[n-2].b,a[n]),this.$="message";break;case 10:u.addMessage(a[n-4].a,a[n-2],a[n],a[n-4].b),this.$="actor";break;case 11:this.$="action";break;case 12:this.$="actor";break;case 13:console.log("Got new message from="+a[n-6]+" to="+a[n-2]+" message="+a[n]+" answer="+a[n-4]),this.$="actor";break;case 24:case 27:case 28:case 29:case 33:this.$=a[n];break;case 25:case 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t.node(e).height}).attr("x",function(e){var r=t.node(e);return r.x-r.width/2}).attr("y",function(e){var r=t.node(e);return r.y-r.height/2})}var n=e("./util");t.exports=r},{"./util":25}],4:[function(e,t){"use strict";function r(e,t){var r=e.selectAll("g.edgeLabel").data(t.edges(),function(e){return a.edgeToId(e)}).classed("update",!0);return r.selectAll("*").remove(),r.enter().append("g").classed("edgeLabel",!0).style("opacity",0),r.each(function(e){var r=t.edge(e),a=i(o.select(this),t.edge(e),0,0).classed("label",!0),u=a.node().getBBox();r.labelId&&a.attr("id",r.labelId),n.has(r,"width")||(r.width=u.width),n.has(r,"height")||(r.height=u.height)}),a.applyTransition(r.exit(),t).style("opacity",0).remove(),r}var n=e("./lodash"),i=e("./label/add-label"),a=e("./util"),o=e("./d3");t.exports=r},{"./d3":7,"./label/add-label":18,"./lodash":20,"./util":25}],5:[function(e,t){"use strict";function r(e,t,r){var i=e.selectAll("g.edgePath").data(t.edges(),function(e){return 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o=e("./lodash"),u=e("./graph");t.exports={write:r,read:a}},{"./graph":72,"./lodash":75}],75:[function(e,t){t.exports=e(20)},{lodash:101}],76:[function(e,t){t.exports="1.0.1"},{}],77:[function(e,t,r){arguments[4][57][0].apply(r,arguments)},{"./lib":93,"./lib/alg":84,"./lib/json":94}],78:[function(e,t){t.exports=e(58)},{"../lodash":95}],79:[function(e,t){t.exports=e(59)},{"../lodash":95}],80:[function(e,t){t.exports=e(60)},{"../lodash":95,"./dijkstra":81}],81:[function(e,t){t.exports=e(61)},{"../data/priority-queue":91,"../lodash":95}],82:[function(e,t){t.exports=e(62)},{"../lodash":95,"./tarjan":89}],83:[function(e,t){t.exports=e(63)},{"../lodash":95}],84:[function(e,t,r){arguments[4][64][0].apply(r,arguments)},{"./components":78,"./dijkstra":81,"./dijkstra-all":80,"./find-cycles":82,"./floyd-warshall":83,"./is-acyclic":85,"./postorder":86,"./preorder":87,"./prim":88,"./tarjan":89,"./topsort":90}],85:[function(e,t){t.exports=e(65)},{"./topsort":90}],86:[function(e,t){t.exports=e(66)},{"./dfs":79}],87:[function(e,t){t.exports=e(67)},{"./dfs":79}],88:[function(e,t,r){arguments[4][68][0].apply(r,arguments)},{"../data/priority-queue":91,"../graph":92,"../lodash":95}],89:[function(e,t){t.exports=e(69)},{"../lodash":95}],90:[function(e,t){t.exports=e(70)},{"../lodash":95}],91:[function(e,t){t.exports=e(71)},{"../lodash":95}],92:[function(e,t){"use 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k","Ú":"Uacute","ú":"uacute","↟":"Uarr","⥉":"Uarrocir","Ў":"Ubrcy","ў":"ubrcy","Ŭ":"Ubreve","ŭ":"ubreve","Û":"Ucirc","û":"ucirc","У":"Ucy","у":"ucy","⇅":"udarr","Ű":"Udblac","ű":"udblac","⥮":"udhar","⥾":"ufisht","𝔘":"Ufr","𝔲":"ufr","Ù":"Ugrave","ù":"ugrave","⥣":"uHar","▀":"uhblk","⌜":"ulcorn","⌏":"ulcrop","◸":"ultri","Ū":"Umacr","ū":"umacr","⏟":"UnderBrace","⏝":"UnderParenthesis","⊎":"uplus","Ų":"Uogon","ų":"uogon","𝕌":"Uopf","𝕦":"uopf","⤒":"UpArrowBar","↕":"varr","υ":"upsi","ϒ":"Upsi","Υ":"Upsilon","⇈":"uuarr","⌝":"urcorn","⌎":"urcrop","Ů":"Uring","ů":"uring","◹":"urtri","𝒰":"Uscr","𝓊":"uscr","⋰":"utdot","Ũ":"Utilde","ũ":"utilde","Ü":"Uuml","ü":"uuml","⦧":"uwangle","⦜":"vangrt","⊊︀":"vsubne","⫋︀":"vsubnE","⊋︀":"vsupne","⫌︀":"vsupnE","⫨":"vBar","⫫":"Vbar","⫩":"vBarv","В":"Vcy","в":"vcy","⊩":"Vdash","⊫":"VDash","⫦":"Vdashl","⊻":"veebar","≚":"veeeq","⋮":"vellip","|":"vert","‖":"Vert","❘":"VerticalSeparator","≀":"wr","𝔙":"Vfr","𝔳":"vfr","𝕍":"Vopf","𝕧":"vopf","𝒱":"Vscr","𝓋":"vscr","⊪":"Vvdash","⦚":"vzigzag","Ŵ":"Wcirc","ŵ":"wcirc","⩟":"wedbar","≙":"wedgeq","℘":"wp","𝔚":"Wfr","𝔴":"wfr","𝕎":"Wopf","𝕨":"wopf","𝒲":"Wscr","𝓌":"wscr","𝔛":"Xfr","𝔵":"xfr","Ξ":"Xi","ξ":"xi","⋻":"xnis","𝕏":"Xopf","𝕩":"xopf","𝒳":"Xscr","𝓍":"xscr","Ý":"Yacute","ý":"yacute","Я":"YAcy","я":"yacy","Ŷ":"Ycirc","ŷ":"ycirc","Ы":"Ycy","ы":"ycy","¥":"yen","𝔜":"Yfr","𝔶":"yfr","Ї":"YIcy","ї":"yicy","𝕐":"Yopf","𝕪":"yopf","𝒴":"Yscr","𝓎":"yscr","Ю":"YUcy","ю":"yucy","ÿ":"yuml","Ÿ":"Yuml","Ź":"Zacute","ź":"zacute","Ž":"Zcaron","ž":"zcaron","З":"Zcy","з":"zcy","Ż":"Zdot","ż":"zdot","ℨ":"Zfr","Ζ":"Zeta","ζ":"zeta","𝔷":"zfr","Ж":"ZHcy","ж":"zhcy","⇝":"zigrarr","𝕫":"zopf","𝒵":"Zscr","𝓏":"zscr","‍":"zwj","‌":"zwnj"},d=/["&'<>`]/g,f={'"':"&quot;","&":"&amp;","'":"&#x27;","<":"&lt;",">":"&gt;","`":"&#x60;"},p=/&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/,g=/[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/,m=/&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|iacute|Uacute|plusmn|otilde|Otilde|Agrave|agrave|yacute|Yacute|oslash|Oslash|Atilde|atilde|brvbar|Ccedil|ccedil|ograve|curren|divide|Eacute|eacute|Ograve|oacute|Egrave|egrave|ugrave|frac12|frac14|frac34|Ugrave|Oacute|Iacute|ntilde|Ntilde|uacute|middot|Igrave|igrave|iquest|aacute|laquo|THORN|micro|iexcl|icirc|Icirc|Acirc|ucirc|ecirc|Ocirc|ocirc|Ecirc|Ucirc|aring|Aring|aelig|AElig|acute|pound|raquo|acirc|times|thorn|szlig|cedil|COPY|Auml|ordf|ordm|uuml|macr|Uuml|auml|Ouml|ouml|para|nbsp|Euml|quot|QUOT|euml|yuml|cent|sect|copy|sup1|sup2|sup3|Iuml|iuml|shy|eth|reg|not|yen|amp|AMP|REG|uml|ETH|deg|gt|GT|LT|lt)([=a-zA-Z0-9])?/g,y={Aacute:"Á",aacute:"á",Abreve:"Ă",abreve:"ă",ac:"∾",acd:"∿",acE:"∾̳",Acirc:"Â",acirc:"â",acute:"´",Acy:"А",acy:"а",AElig:"Æ",aelig:"æ",af:"⁡",Afr:"𝔄",afr:"𝔞",Agrave:"À",agrave:"à",alefsym:"ℵ",aleph:"ℵ",Alpha:"Α",alpha:"α",Amacr:"Ā",amacr:"ā",amalg:"⨿",amp:"&",AMP:"&",andand:"⩕",And:"⩓",and:"∧",andd:"⩜",andslope:"⩘",andv:"⩚",ang:"∠",ange:"⦤",angle:"∠",angmsdaa:"⦨",angmsdab:"⦩",angmsdac:"⦪",angmsdad:"⦫",angmsdae:"⦬",angmsdaf:"⦭",angmsdag:"⦮",angmsdah:"⦯",angmsd:"∡",angrt:"∟",angrtvb:"⊾",angrtvbd:"⦝",angsph:"∢",angst:"Å",angzarr:"⍼",Aogon:"Ą",aogon:"ą",Aopf:"𝔸",aopf:"𝕒",apacir:"⩯",ap:"≈",apE:"⩰",ape:"≊",apid:"≋",apos:"'",ApplyFunction:"⁡",approx:"≈",approxeq:"≊",Aring:"Å",aring:"å",Ascr:"𝒜",ascr:"𝒶",Assign:"≔",ast:"*",asymp:"≈",asympeq:"≍",Atilde:"Ã",atilde:"ã",Auml:"Ä",auml:"ä",awconint:"∳",awint:"⨑",backcong:"≌",backepsilon:"϶",backprime:"‵",backsim:"∽",backsimeq:"⋍",Backslash:"∖",Barv:"⫧",barvee:"⊽",barwed:"⌅",Barwed:"⌆",barwedge:"⌅",bbrk:"⎵",bbrktbrk:"⎶",bcong:"≌",Bcy:"Б",bcy:"б",bdquo:"„",becaus:"∵",because:"∵",Because:"∵",bemptyv:"⦰",bepsi:"϶",bernou:"ℬ",Bernoullis:"ℬ",Beta:"Β",beta:"β",beth:"ℶ",between:"≬",Bfr:"𝔅",bfr:"𝔟",bigcap:"⋂",bigcirc:"◯",bigcup:"⋃",bigodot:"⨀",bigoplus:"⨁",bigotimes:"⨂",bigsqcup:"⨆",bigstar:"★",bigtriangledown:"▽",bigtriangleup:"△",biguplus:"⨄",bigvee:"⋁",bigwedge:"⋀",bkarow:"⤍",blacklozenge:"⧫",blacksquare:"▪",blacktriangle:"▴",blacktriangledown:"▾",blacktriangleleft:"◂",blacktriangleright:"▸",blank:"␣",blk12:"▒",blk14:"░",blk34:"▓",block:"█",bne:"=⃥",bnequiv:"≡⃥",bNot:"⫭",bnot:"⌐",Bopf:"𝔹",bopf:"𝕓",bot:"⊥",bottom:"⊥",bowtie:"⋈",boxbox:"⧉",boxdl:"┐",boxdL:"╕",boxDl:"╖",boxDL:"╗",boxdr:"┌",boxdR:"╒",boxDr:"╓",boxDR:"╔",boxh:"─",boxH:"═",boxhd:"┬",boxHd:"╤",boxhD:"╥",boxHD:"╦",boxhu:"┴",boxHu:"╧",boxhU:"╨",boxHU:"╩",boxminus:"⊟",boxplus:"⊞",boxtimes:"⊠",boxul:"┘",boxuL:"╛",boxUl:"╜",boxUL:"╝",boxur:"└",boxuR:"╘",boxUr:"╙",boxUR:"╚",boxv:"│",boxV:"║",boxvh:"┼",boxvH:"╪",boxVh:"╫",boxVH:"╬",boxvl:"┤",boxvL:"╡",boxVl:"╢",boxVL:"╣",boxvr:"├",boxvR:"╞",boxVr:"╟",boxVR:"╠",bprime:"‵",breve:"˘",Breve:"˘",brvbar:"¦",bscr:"𝒷",Bscr:"ℬ",bsemi:"⁏",bsim:"∽",bsime:"⋍",bsolb:"⧅",bsol:"\\",bsolhsub:"⟈",bull:"•",bullet:"•",bump:"≎",bumpE:"⪮",bumpe:"≏",Bumpeq:"≎",bumpeq:"≏",Cacute:"Ć",cacute:"ć",capand:"⩄",capbrcup:"⩉",capcap:"⩋",cap:"∩",Cap:"⋒",capcup:"⩇",capdot:"⩀",CapitalDifferentialD:"ⅅ",caps:"∩︀",caret:"⁁",caron:"ˇ",Cayleys:"ℭ",ccaps:"⩍",Ccaron:"Č",ccaron:"č",Ccedil:"Ç",ccedil:"ç",Ccirc:"Ĉ",ccirc:"ĉ",Cconint:"∰",ccups:"⩌",ccupssm:"⩐",Cdot:"Ċ",cdot:"ċ",cedil:"¸",Cedilla:"¸",cemptyv:"⦲",cent:"¢",centerdot:"·",CenterDot:"·",cfr:"𝔠",Cfr:"ℭ",CHcy:"Ч",chcy:"ч",check:"✓",checkmark:"✓",Chi:"Χ",chi:"χ",circ:"ˆ",circeq:"≗",circlearrowleft:"↺",circlearrowright:"↻",circledast:"⊛",circledcirc:"⊚",circleddash:"⊝",CircleDot:"⊙",circledR:"®",circledS:"Ⓢ",CircleMinus:"⊖",CirclePlus:"⊕",CircleTimes:"⊗",cir:"○",cirE:"⧃",cire:"≗",cirfnint:"⨐",cirmid:"⫯",cirscir:"⧂",ClockwiseContourIntegral:"∲",CloseCurlyDoubleQuote:"”",CloseCurlyQuote:"’",clubs:"♣",clubsuit:"♣",colon:":",Colon:"∷",Colone:"⩴",colone:"≔",coloneq:"≔",comma:",",commat:"@",comp:"∁",compfn:"∘",complement:"∁",complexes:"ℂ",cong:"≅",congdot:"⩭",Congruent:"≡",conint:"∮",Conint:"∯",ContourIntegral:"∮",copf:"𝕔",Copf:"ℂ",coprod:"∐",Coproduct:"∐",copy:"©",COPY:"©",copysr:"℗",CounterClockwiseContourIntegral:"∳",crarr:"↵",cross:"✗",Cross:"⨯",Cscr:"𝒞",cscr:"𝒸",csub:"⫏",csube:"⫑",csup:"⫐",csupe:"⫒",ctdot:"⋯",cudarrl:"⤸",cudarrr:"⤵",cuepr:"⋞",cuesc:"⋟",cularr:"↶",cularrp:"⤽",cupbrcap:"⩈",cupcap:"⩆",CupCap:"≍",cup:"∪",Cup:"⋓",cupcup:"⩊",cupdot:"⊍",cupor:"⩅",cups:"∪︀",curarr:"↷",curarrm:"⤼",curlyeqprec:"⋞",curlyeqsucc:"⋟",curlyvee:"⋎",curlywedge:"⋏",curren:"¤",curvearrowleft:"↶",curvearrowright:"↷",cuvee:"⋎",cuwed:"⋏",cwconint:"∲",cwint:"∱",cylcty:"⌭",dagger:"†",Dagger:"‡",daleth:"ℸ",darr:"↓",Darr:"↡",dArr:"⇓",dash:"‐",Dashv:"⫤",dashv:"⊣",dbkarow:"⤏",dblac:"˝",Dcaron:"Ď",dcaron:"ď",Dcy:"Д",dcy:"д",ddagger:"‡",ddarr:"⇊",DD:"ⅅ",dd:"ⅆ",DDotrahd:"⤑",ddotseq:"⩷",deg:"°",Del:"∇",Delta:"Δ",delta:"δ",demptyv:"⦱",dfisht:"⥿",Dfr:"𝔇",dfr:"𝔡",dHar:"⥥",dharl:"⇃",dharr:"⇂",DiacriticalAcute:"´",DiacriticalDot:"˙",DiacriticalDoubleAcute:"˝",DiacriticalGrave:"`",DiacriticalTilde:"˜",diam:"⋄",diamond:"⋄",Diamond:"⋄",diamondsuit:"♦",diams:"♦",die:"¨",DifferentialD:"ⅆ",digamma:"ϝ",disin:"⋲",div:"÷",divide:"÷",divideontimes:"⋇",divonx:"⋇",DJcy:"Ђ",djcy:"ђ",dlcorn:"⌞",dlcrop:"⌍",dollar:"$",Dopf:"𝔻",dopf:"𝕕",Dot:"¨",dot:"˙",DotDot:"⃜",doteq:"≐",doteqdot:"≑",DotEqual:"≐",dotminus:"∸",dotplus:"∔",dotsquare:"⊡",doublebarwedge:"⌆",DoubleContourIntegral:"∯",DoubleDot:"¨",DoubleDownArrow:"⇓",DoubleLeftArrow:"⇐",DoubleLeftRightArrow:"⇔",DoubleLeftTee:"⫤",DoubleLongLeftArrow:"⟸",DoubleLongLeftRightArrow:"⟺",DoubleLongRightArrow:"⟹",DoubleRightArrow:"⇒",DoubleRightTee:"⊨",DoubleUpArrow:"⇑",DoubleUpDownArrow:"⇕",DoubleVerticalBar:"∥",DownArrowBar:"⤓",downarrow:"↓",DownArrow:"↓",Downarrow:"⇓",DownArrowUpArrow:"⇵",DownBreve:"̑",downdownarrows:"⇊",downharpoonleft:"⇃",downharpoonright:"⇂",DownLeftRightVector:"⥐",DownLeftTeeVector:"⥞",DownLeftVectorBar:"⥖",DownLeftVector:"↽",DownRightTeeVector:"⥟",DownRightVectorBar:"⥗",DownRightVector:"⇁",DownTeeArrow:"↧",DownTee:"⊤",drbkarow:"⤐",drcorn:"⌟",drcrop:"⌌",Dscr:"𝒟",dscr:"𝒹",DScy:"Ѕ",dscy:"ѕ",dsol:"⧶",Dstrok:"Đ",dstrok:"đ",dtdot:"⋱",dtri:"▿",dtrif:"▾",duarr:"⇵",duhar:"⥯",dwangle:"⦦",DZcy:"Џ",dzcy:"џ",dzigrarr:"⟿",Eacute:"É",eacute:"é",easter:"⩮",Ecaron:"Ě",ecaron:"ě",Ecirc:"Ê",ecirc:"ê",ecir:"≖",ecolon:"≕",Ecy:"Э",ecy:"э",eDDot:"⩷",Edot:"Ė",edot:"ė",eDot:"≑",ee:"ⅇ",efDot:"≒",Efr:"𝔈",efr:"𝔢",eg:"⪚",Egrave:"È",egrave:"è",egs:"⪖",egsdot:"⪘",el:"⪙",Element:"∈",elinters:"⏧",ell:"ℓ",els:"⪕",elsdot:"⪗",Emacr:"Ē",emacr:"ē",empty:"∅",emptyset:"∅",EmptySmallSquare:"◻",emptyv:"∅",EmptyVerySmallSquare:"▫",emsp13:" ",emsp14:" ",emsp:" ",ENG:"Ŋ",eng:"ŋ",ensp:" ",Eogon:"Ę",eogon:"ę",Eopf:"𝔼",eopf:"𝕖",epar:"⋕",eparsl:"⧣",eplus:"⩱",epsi:"ε",Epsilon:"Ε",epsilon:"ε",epsiv:"ϵ",eqcirc:"≖",eqcolon:"≕",eqsim:"≂",eqslantgtr:"⪖",eqslantless:"⪕",Equal:"⩵",equals:"=",EqualTilde:"≂",equest:"≟",Equilibrium:"⇌",equiv:"≡",equivDD:"⩸",eqvparsl:"⧥",erarr:"⥱",erDot:"≓",escr:"ℯ",Escr:"ℰ",esdot:"≐",Esim:"⩳",esim:"≂",Eta:"Η",eta:"η",ETH:"Ð",eth:"ð",Euml:"Ë",euml:"ë",euro:"€",excl:"!",exist:"∃",Exists:"∃",expectation:"ℰ",exponentiale:"ⅇ",ExponentialE:"ⅇ",fallingdotseq:"≒",Fcy:"Ф",fcy:"ф",female:"♀",ffilig:"ffi",fflig:"ff",ffllig:"ffl",Ffr:"𝔉",ffr:"𝔣",filig:"fi",FilledSmallSquare:"◼",FilledVerySmallSquare:"▪",fjlig:"fj",flat:"♭",fllig:"fl",fltns:"▱",fnof:"ƒ",Fopf:"𝔽",fopf:"𝕗",forall:"∀",ForAll:"∀",fork:"⋔",forkv:"⫙",Fouriertrf:"ℱ",fpartint:"⨍",frac12:"½",frac13:"⅓",frac14:"¼",frac15:"⅕",frac16:"⅙",frac18:"⅛",frac23:"⅔",frac25:"⅖",frac34:"¾",frac35:"⅗",frac38:"⅜",frac45:"⅘",frac56:"⅚",frac58:"⅝",frac78:"⅞",frasl:"⁄",frown:"⌢",fscr:"𝒻",Fscr:"ℱ",gacute:"ǵ",Gamma:"Γ",gamma:"γ",Gammad:"Ϝ",gammad:"ϝ",gap:"⪆",Gbreve:"Ğ",gbreve:"ğ",Gcedil:"Ģ",Gcirc:"Ĝ",gcirc:"ĝ",Gcy:"Г",gcy:"г",Gdot:"Ġ",gdot:"ġ",ge:"≥",gE:"≧",gEl:"⪌",gel:"⋛",geq:"≥",geqq:"≧",geqslant:"⩾",gescc:"⪩",ges:"⩾",gesdot:"⪀",gesdoto:"⪂",gesdotol:"⪄",gesl:"⋛︀",gesles:"⪔",Gfr:"𝔊",gfr:"𝔤",gg:"≫",Gg:"⋙",ggg:"⋙",gimel:"ℷ",GJcy:"Ѓ",gjcy:"ѓ",gla:"⪥",gl:"≷",glE:"⪒",glj:"⪤",gnap:"⪊",gnapprox:"⪊",gne:"⪈",gnE:"≩",gneq:"⪈",gneqq:"≩",gnsim:"⋧",Gopf:"𝔾",gopf:"𝕘",grave:"`",GreaterEqual:"≥",GreaterEqualLess:"⋛",GreaterFullEqual:"≧",GreaterGreater:"⪢",GreaterLess:"≷",GreaterSlantEqual:"⩾",GreaterTilde:"≳",Gscr:"𝒢",gscr:"ℊ",gsim:"≳",gsime:"⪎",gsiml:"⪐",gtcc:"⪧",gtcir:"⩺",gt:">",GT:">",Gt:"≫",gtdot:"⋗",gtlPar:"⦕",gtquest:"⩼",gtrapprox:"⪆",gtrarr:"⥸",gtrdot:"⋗",gtreqless:"⋛",gtreqqless:"⪌",gtrless:"≷",gtrsim:"≳",gvertneqq:"≩︀",gvnE:"≩︀",Hacek:"ˇ",hairsp:" ",half:"½",hamilt:"ℋ",HARDcy:"Ъ",hardcy:"ъ",harrcir:"⥈",harr:"↔",hArr:"⇔",harrw:"↭",Hat:"^",hbar:"ℏ",Hcirc:"Ĥ",hcirc:"ĥ",hearts:"♥",heartsuit:"♥",hellip:"…",hercon:"⊹",hfr:"𝔥",Hfr:"ℌ",HilbertSpace:"ℋ",hksearow:"⤥",hkswarow:"⤦",hoarr:"⇿",homtht:"∻",hookleftarrow:"↩",hookrightarrow:"↪",hopf:"𝕙",Hopf:"ℍ",horbar:"―",HorizontalLine:"─",hscr:"𝒽",Hscr:"ℋ",hslash:"ℏ",Hstrok:"Ħ",hstrok:"ħ",HumpDownHump:"≎",HumpEqual:"≏",hybull:"⁃",hyphen:"‐",Iacute:"Í",iacute:"í",ic:"⁣",Icirc:"Î",icirc:"î",Icy:"И",icy:"и",Idot:"İ",IEcy:"Е",iecy:"е",iexcl:"¡",iff:"⇔",ifr:"𝔦",Ifr:"ℑ",Igrave:"Ì",igrave:"ì",ii:"ⅈ",iiiint:"⨌",iiint:"∭",iinfin:"⧜",iiota:"℩",IJlig:"IJ",ijlig:"ij",Imacr:"Ī",imacr:"ī",image:"ℑ",ImaginaryI:"ⅈ",imagline:"ℐ",imagpart:"ℑ",imath:"ı",Im:"ℑ",imof:"⊷",imped:"Ƶ",Implies:"⇒",incare:"℅","in":"∈",infin:"∞",infintie:"⧝",inodot:"ı",intcal:"⊺","int":"∫",Int:"∬",integers:"ℤ",Integral:"∫",intercal:"⊺",Intersection:"⋂",intlarhk:"⨗",intprod:"⨼",InvisibleComma:"⁣",InvisibleTimes:"⁢",IOcy:"Ё",iocy:"ё",Iogon:"Į",iogon:"į",Iopf:"𝕀",iopf:"𝕚",Iota:"Ι",iota:"ι",iprod:"⨼",iquest:"¿",iscr:"𝒾",Iscr:"ℐ",isin:"∈",isindot:"⋵",isinE:"⋹",isins:"⋴",isinsv:"⋳",isinv:"∈",it:"⁢",Itilde:"Ĩ",itilde:"ĩ",Iukcy:"І",iukcy:"і",Iuml:"Ï",iuml:"ï",Jcirc:"Ĵ",jcirc:"ĵ",Jcy:"Й",jcy:"й",Jfr:"𝔍",jfr:"𝔧",jmath:"ȷ",Jopf:"𝕁",jopf:"𝕛",Jscr:"𝒥",jscr:"𝒿",Jsercy:"Ј",jsercy:"ј",Jukcy:"Є",jukcy:"є",Kappa:"Κ",kappa:"κ",kappav:"ϰ",Kcedil:"Ķ",kcedil:"ķ",Kcy:"К",kcy:"к",Kfr:"𝔎",kfr:"𝔨",kgreen:"ĸ",KHcy:"Х",khcy:"х",KJcy:"Ќ",kjcy:"ќ",Kopf:"𝕂",kopf:"𝕜",Kscr:"𝒦",kscr:"𝓀",lAarr:"⇚",Lacute:"Ĺ",lacute:"ĺ",laemptyv:"⦴",lagran:"ℒ",Lambda:"Λ",lambda:"λ",lang:"⟨",Lang:"⟪",langd:"⦑",langle:"⟨",lap:"⪅",Laplacetrf:"ℒ",laquo:"«",larrb:"⇤",larrbfs:"⤟",larr:"←",Larr:"↞",lArr:"⇐",larrfs:"⤝",larrhk:"↩",larrlp:"↫",larrpl:"⤹",larrsim:"⥳",larrtl:"↢",latail:"⤙",lAtail:"⤛",lat:"⪫",late:"⪭",lates:"⪭︀",lbarr:"⤌",lBarr:"⤎",lbbrk:"❲",lbrace:"{",lbrack:"[",lbrke:"⦋",lbrksld:"⦏",lbrkslu:"⦍",Lcaron:"Ľ",lcaron:"ľ",Lcedil:"Ļ",lcedil:"ļ",lceil:"⌈",lcub:"{",Lcy:"Л",lcy:"л",ldca:"⤶",ldquo:"“",ldquor:"„",ldrdhar:"⥧",ldrushar:"⥋",ldsh:"↲",le:"≤",lE:"≦",LeftAngleBracket:"⟨",LeftArrowBar:"⇤",leftarrow:"←",LeftArrow:"←",Leftarrow:"⇐",LeftArrowRightArrow:"⇆",leftarrowtail:"↢",LeftCeiling:"⌈",LeftDoubleBracket:"⟦",LeftDownTeeVector:"⥡",LeftDownVectorBar:"⥙",LeftDownVector:"⇃",LeftFloor:"⌊",leftharpoondown:"↽",leftharpoonup:"↼",leftleftarrows:"⇇",leftrightarrow:"↔",LeftRightArrow:"↔",Leftrightarrow:"⇔",leftrightarrows:"⇆",leftrightharpoons:"⇋",leftrightsquigarrow:"↭",LeftRightVector:"⥎",LeftTeeArrow:"↤",LeftTee:"⊣",LeftTeeVector:"⥚",leftthreetimes:"⋋",LeftTriangleBar:"⧏",LeftTriangle:"⊲",LeftTriangleEqual:"⊴",LeftUpDownVector:"⥑",LeftUpTeeVector:"⥠",LeftUpVectorBar:"⥘",LeftUpVector:"↿",LeftVectorBar:"⥒",LeftVector:"↼",lEg:"⪋",leg:"⋚",leq:"≤",leqq:"≦",leqslant:"⩽",lescc:"⪨",les:"⩽",lesdot:"⩿",lesdoto:"⪁",lesdotor:"⪃",lesg:"⋚︀",lesges:"⪓",lessapprox:"⪅",lessdot:"⋖",lesseqgtr:"⋚",lesseqqgtr:"⪋",LessEqualGreater:"⋚",LessFullEqual:"≦",LessGreater:"≶",lessgtr:"≶",LessLess:"⪡",lesssim:"≲",LessSlantEqual:"⩽",LessTilde:"≲",lfisht:"⥼",lfloor:"⌊",Lfr:"𝔏",lfr:"𝔩",lg:"≶",lgE:"⪑",lHar:"⥢",lhard:"↽",lharu:"↼",lharul:"⥪",lhblk:"▄",LJcy:"Љ",ljcy:"љ",llarr:"⇇",ll:"≪",Ll:"⋘",llcorner:"⌞",Lleftarrow:"⇚",llhard:"⥫",lltri:"◺",Lmidot:"Ŀ",lmidot:"ŀ",lmoustache:"⎰",lmoust:"⎰",lnap:"⪉",lnapprox:"⪉",lne:"⪇",lnE:"≨",lneq:"⪇",lneqq:"≨",lnsim:"⋦",loang:"⟬",loarr:"⇽",lobrk:"⟦",longleftarrow:"⟵",LongLeftArrow:"⟵",Longleftarrow:"⟸",longleftrightarrow:"⟷",LongLeftRightArrow:"⟷",Longleftrightarrow:"⟺",longmapsto:"⟼",longrightarrow:"⟶",LongRightArrow:"⟶",Longrightarrow:"⟹",looparrowleft:"↫",looparrowright:"↬",lopar:"⦅",Lopf:"𝕃",lopf:"𝕝",loplus:"⨭",lotimes:"⨴",lowast:"∗",lowbar:"_",LowerLeftArrow:"↙",LowerRightArrow:"↘",loz:"◊",lozenge:"◊",lozf:"⧫",lpar:"(",lparlt:"⦓",lrarr:"⇆",lrcorner:"⌟",lrhar:"⇋",lrhard:"⥭",lrm:"‎",lrtri:"⊿",lsaquo:"‹",lscr:"𝓁",Lscr:"ℒ",lsh:"↰",Lsh:"↰",lsim:"≲",lsime:"⪍",lsimg:"⪏",lsqb:"[",lsquo:"‘",lsquor:"‚",Lstrok:"Ł",lstrok:"ł",ltcc:"⪦",ltcir:"⩹",lt:"<",LT:"<",Lt:"≪",ltdot:"⋖",lthree:"⋋",ltimes:"⋉",ltlarr:"⥶",ltquest:"⩻",ltri:"◃",ltrie:"⊴",ltrif:"◂",ltrPar:"⦖",lurdshar:"⥊",luruhar:"⥦",lvertneqq:"≨︀",lvnE:"≨︀",macr:"¯",male:"♂",malt:"✠",maltese:"✠",Map:"⤅",map:"↦",mapsto:"↦",mapstodown:"↧",mapstoleft:"↤",mapstoup:"↥",marker:"▮",mcomma:"⨩",Mcy:"М",mcy:"м",mdash:"—",mDDot:"∺",measuredangle:"∡",MediumSpace:" ",Mellintrf:"ℳ",Mfr:"𝔐",mfr:"𝔪",mho:"℧",micro:"µ",midast:"*",midcir:"⫰",mid:"∣",middot:"·",minusb:"⊟",minus:"−",minusd:"∸",minusdu:"⨪",MinusPlus:"∓",mlcp:"⫛",mldr:"…",mnplus:"∓",models:"⊧",Mopf:"𝕄",mopf:"𝕞",mp:"∓",mscr:"𝓂",Mscr:"ℳ",mstpos:"∾",Mu:"Μ",mu:"μ",multimap:"⊸",mumap:"⊸",nabla:"∇",Nacute:"Ń",nacute:"ń",nang:"∠⃒",nap:"≉",napE:"⩰̸",napid:"≋̸",napos:"ʼn",napprox:"≉",natural:"♮",naturals:"ℕ",natur:"♮",nbsp:" ",nbump:"≎̸",nbumpe:"≏̸",ncap:"⩃",Ncaron:"Ň",ncaron:"ň",Ncedil:"Ņ",ncedil:"ņ",ncong:"≇",ncongdot:"⩭̸",ncup:"⩂",Ncy:"Н",ncy:"н",ndash:"–",nearhk:"⤤",nearr:"↗",neArr:"⇗",nearrow:"↗",ne:"≠",nedot:"≐̸",NegativeMediumSpace:"​",NegativeThickSpace:"​",NegativeThinSpace:"​",NegativeVeryThinSpace:"​",nequiv:"≢",nesear:"⤨",nesim:"≂̸",NestedGreaterGreater:"≫",NestedLessLess:"≪",NewLine:"\n",nexist:"∄",nexists:"∄",Nfr:"𝔑",nfr:"𝔫",ngE:"≧̸",nge:"≱",ngeq:"≱",ngeqq:"≧̸",ngeqslant:"⩾̸",nges:"⩾̸",nGg:"⋙̸",ngsim:"≵",nGt:"≫⃒",ngt:"≯",ngtr:"≯",nGtv:"≫̸",nharr:"↮",nhArr:"⇎",nhpar:"⫲",ni:"∋",nis:"⋼",nisd:"⋺",niv:"∋",NJcy:"Њ",njcy:"њ",nlarr:"↚",nlArr:"⇍",nldr:"‥",nlE:"≦̸",nle:"≰",nleftarrow:"↚",nLeftarrow:"⇍",nleftrightarrow:"↮",nLeftrightarrow:"⇎",nleq:"≰",nleqq:"≦̸",nleqslant:"⩽̸",nles:"⩽̸",nless:"≮",nLl:"⋘̸",nlsim:"≴",nLt:"≪⃒",nlt:"≮",nltri:"⋪",nltrie:"⋬",nLtv:"≪̸",nmid:"∤",NoBreak:"⁠",NonBreakingSpace:" ",nopf:"𝕟",Nopf:"ℕ",Not:"⫬",not:"¬",NotCongruent:"≢",NotCupCap:"≭",NotDoubleVerticalBar:"∦",NotElement:"∉",NotEqual:"≠",NotEqualTilde:"≂̸",NotExists:"∄",NotGreater:"≯",NotGreaterEqual:"≱",NotGreaterFullEqual:"≧̸",NotGreaterGreater:"≫̸",NotGreaterLess:"≹",NotGreaterSlantEqual:"⩾̸",NotGreaterTilde:"≵",NotHumpDownHump:"≎̸",NotHumpEqual:"≏̸",notin:"∉",notindot:"⋵̸",notinE:"⋹̸",notinva:"∉",notinvb:"⋷",notinvc:"⋶",NotLeftTriangleBar:"⧏̸",NotLeftTriangle:"⋪",NotLeftTriangleEqual:"⋬",NotLess:"≮",NotLessEqual:"≰",NotLessGreater:"≸",NotLessLess:"≪̸",NotLessSlantEqual:"⩽̸",NotLessTilde:"≴",NotNestedGreaterGreater:"⪢̸",NotNestedLessLess:"⪡̸",notni:"∌",notniva:"∌",notnivb:"⋾",notnivc:"⋽",NotPrecedes:"⊀",NotPrecedesEqual:"⪯̸",NotPrecedesSlantEqual:"⋠",NotReverseElement:"∌",NotRightTriangleBar:"⧐̸",NotRightTriangle:"⋫",NotRightTriangleEqual:"⋭",NotSquareSubset:"⊏̸",NotSquareSubsetEqual:"⋢",NotSquareSuperset:"⊐̸",NotSquareSupersetEqual:"⋣",NotSubset:"⊂⃒",NotSubsetEqual:"⊈",NotSucceeds:"⊁",NotSucceedsEqual:"⪰̸",NotSucceedsSlantEqual:"⋡",NotSucceedsTilde:"≿̸",NotSuperset:"⊃⃒",NotSupersetEqual:"⊉",NotTilde:"≁",NotTildeEqual:"≄",NotTildeFullEqual:"≇",NotTildeTilde:"≉",NotVerticalBar:"∤",nparallel:"∦",npar:"∦",nparsl:"⫽⃥",npart:"∂̸",npolint:"⨔",npr:"⊀",nprcue:"⋠",nprec:"⊀",npreceq:"⪯̸",npre:"⪯̸",nrarrc:"⤳̸",nrarr:"↛",nrArr:"⇏",nrarrw:"↝̸",nrightarrow:"↛",nRightarrow:"⇏",nrtri:"⋫",nrtrie:"⋭",nsc:"⊁",nsccue:"⋡",nsce:"⪰̸",Nscr:"𝒩",nscr:"𝓃",nshortmid:"∤",nshortparallel:"∦",nsim:"≁",nsime:"≄",nsimeq:"≄",nsmid:"∤",nspar:"∦",nsqsube:"⋢",nsqsupe:"⋣",nsub:"⊄",nsubE:"⫅̸",nsube:"⊈",nsubset:"⊂⃒",nsubseteq:"⊈",nsubseteqq:"⫅̸",nsucc:"⊁",nsucceq:"⪰̸",nsup:"⊅",nsupE:"⫆̸",nsupe:"⊉",nsupset:"⊃⃒",nsupseteq:"⊉",nsupseteqq:"⫆̸",ntgl:"≹",Ntilde:"Ñ",ntilde:"ñ",ntlg:"≸",ntriangleleft:"⋪",ntrianglelefteq:"⋬",ntriangleright:"⋫",ntrianglerighteq:"⋭",Nu:"Ν",nu:"ν",num:"#",numero:"№",numsp:" ",nvap:"≍⃒",nvdash:"⊬",nvDash:"⊭",nVdash:"⊮",nVDash:"⊯",nvge:"≥⃒",nvgt:">⃒",nvHarr:"⤄",nvinfin:"⧞",nvlArr:"⤂",nvle:"≤⃒",nvlt:"<⃒",nvltrie:"⊴⃒",nvrArr:"⤃",nvrtrie:"⊵⃒",nvsim:"∼⃒",nwarhk:"⤣",nwarr:"↖",nwArr:"⇖",nwarrow:"↖",nwnear:"⤧",Oacute:"Ó",oacute:"ó",oast:"⊛",Ocirc:"Ô",ocirc:"ô",ocir:"⊚",Ocy:"О",ocy:"о",odash:"⊝",Odblac:"Ő",odblac:"ő",odiv:"⨸",odot:"⊙",odsold:"⦼",OElig:"Œ",oelig:"œ",ofcir:"⦿",Ofr:"𝔒",ofr:"𝔬",ogon:"˛",Ograve:"Ò",ograve:"ò",ogt:"⧁",ohbar:"⦵",ohm:"Ω",oint:"∮",olarr:"↺",olcir:"⦾",olcross:"⦻",oline:"‾",olt:"⧀",Omacr:"Ō",omacr:"ō",Omega:"Ω",omega:"ω",Omicron:"Ο",omicron:"ο",omid:"⦶",ominus:"⊖",Oopf:"𝕆",oopf:"𝕠",opar:"⦷",OpenCurlyDoubleQuote:"“",OpenCurlyQuote:"‘",operp:"⦹",oplus:"⊕",orarr:"↻",Or:"⩔",or:"∨",ord:"⩝",order:"ℴ",orderof:"ℴ",ordf:"ª",ordm:"º",origof:"⊶",oror:"⩖",orslope:"⩗",orv:"⩛",oS:"Ⓢ",Oscr:"𝒪",oscr:"ℴ",Oslash:"Ø",oslash:"ø",osol:"⊘",Otilde:"Õ",otilde:"õ",otimesas:"⨶",Otimes:"⨷",otimes:"⊗",Ouml:"Ö",ouml:"ö",ovbar:"⌽",OverBar:"‾",OverBrace:"⏞",OverBracket:"⎴",OverParenthesis:"⏜",para:"¶",parallel:"∥",par:"∥",parsim:"⫳",parsl:"⫽",part:"∂",PartialD:"∂",Pcy:"П",pcy:"п",percnt:"%",period:".",permil:"‰",perp:"⊥",pertenk:"‱",Pfr:"𝔓",pfr:"𝔭",Phi:"Φ",phi:"φ",phiv:"ϕ",phmmat:"ℳ",phone:"☎",Pi:"Π",pi:"π",pitchfork:"⋔",piv:"ϖ",planck:"ℏ",planckh:"ℎ",plankv:"ℏ",plusacir:"⨣",plusb:"⊞",pluscir:"⨢",plus:"+",plusdo:"∔",plusdu:"⨥",pluse:"⩲",PlusMinus:"±",plusmn:"±",plussim:"⨦",plustwo:"⨧",pm:"±",Poincareplane:"ℌ",pointint:"⨕",popf:"𝕡",Popf:"ℙ",pound:"£",prap:"⪷",Pr:"⪻",pr:"≺",prcue:"≼",precapprox:"⪷",prec:"≺",preccurlyeq:"≼",Precedes:"≺",PrecedesEqual:"⪯",PrecedesSlantEqual:"≼",PrecedesTilde:"≾",preceq:"⪯",precnapprox:"⪹",precneqq:"⪵",precnsim:"⋨",pre:"⪯",prE:"⪳",precsim:"≾",prime:"′",Prime:"″",primes:"ℙ",prnap:"⪹",prnE:"⪵",prnsim:"⋨",prod:"∏",Product:"∏",profalar:"⌮",profline:"⌒",profsurf:"⌓",prop:"∝",Proportional:"∝",Proportion:"∷",propto:"∝",prsim:"≾",prurel:"⊰",Pscr:"𝒫",pscr:"𝓅",Psi:"Ψ",psi:"ψ",puncsp:" ",Qfr:"𝔔",qfr:"𝔮",qint:"⨌",qopf:"𝕢",Qopf:"ℚ",qprime:"⁗",Qscr:"𝒬",qscr:"𝓆",quaternions:"ℍ",quatint:"⨖",quest:"?",questeq:"≟",quot:'"',QUOT:'"',rAarr:"⇛",race:"∽̱",Racute:"Ŕ",racute:"ŕ",radic:"√",raemptyv:"⦳",rang:"⟩",Rang:"⟫",rangd:"⦒",range:"⦥",rangle:"⟩",raquo:"»",rarrap:"⥵",rarrb:"⇥",rarrbfs:"⤠",rarrc:"⤳",rarr:"→",Rarr:"↠",rArr:"⇒",rarrfs:"⤞",rarrhk:"↪",rarrlp:"↬",rarrpl:"⥅",rarrsim:"⥴",Rarrtl:"⤖",rarrtl:"↣",rarrw:"↝",ratail:"⤚",rAtail:"⤜",ratio:"∶",rationals:"ℚ",rbarr:"⤍",rBarr:"⤏",RBarr:"⤐",rbbrk:"❳",rbrace:"}",rbrack:"]",rbrke:"⦌",rbrksld:"⦎",rbrkslu:"⦐",Rcaron:"Ř",rcaron:"ř",Rcedil:"Ŗ",rcedil:"ŗ",rceil:"⌉",rcub:"}",Rcy:"Р",rcy:"р",rdca:"⤷",rdldhar:"⥩",rdquo:"”",rdquor:"”",rdsh:"↳",real:"ℜ",realine:"ℛ",realpart:"ℜ",reals:"ℝ",Re:"ℜ",rect:"▭",reg:"®",REG:"®",ReverseElement:"∋",ReverseEquilibrium:"⇋",ReverseUpEquilibrium:"⥯",rfisht:"⥽",rfloor:"⌋",rfr:"𝔯",Rfr:"ℜ",rHar:"⥤",rhard:"⇁",rharu:"⇀",rharul:"⥬",Rho:"Ρ",rho:"ρ",rhov:"ϱ",RightAngleBracket:"⟩",RightArrowBar:"⇥",rightarrow:"→",RightArrow:"→",Rightarrow:"⇒",RightArrowLeftArrow:"⇄",rightarrowtail:"↣",RightCeiling:"⌉",RightDoubleBracket:"⟧",RightDownTeeVector:"⥝",RightDownVectorBar:"⥕",RightDownVector:"⇂",RightFloor:"⌋",rightharpoondown:"⇁",rightharpoonup:"⇀",rightleftarrows:"⇄",rightleftharpoons:"⇌",rightrightarrows:"⇉",rightsquigarrow:"↝",RightTeeArrow:"↦",RightTee:"⊢",RightTeeVector:"⥛",rightthreetimes:"⋌",RightTriangleBar:"⧐",RightTriangle:"⊳",RightTriangleEqual:"⊵",RightUpDownVector:"⥏",RightUpTeeVector:"⥜",RightUpVectorBar:"⥔",RightUpVector:"↾",RightVectorBar:"⥓",RightVector:"⇀",ring:"˚",risingdotseq:"≓",rlarr:"⇄",rlhar:"⇌",rlm:"‏",rmoustache:"⎱",rmoust:"⎱",rnmid:"⫮",roang:"⟭",roarr:"⇾",robrk:"⟧",ropar:"⦆",ropf:"𝕣",Ropf:"ℝ",roplus:"⨮",rotimes:"⨵",RoundImplies:"⥰",rpar:")",rpargt:"⦔",rppolint:"⨒",rrarr:"⇉",Rrightarrow:"⇛",rsaquo:"›",rscr:"𝓇",Rscr:"ℛ",rsh:"↱",Rsh:"↱",rsqb:"]",rsquo:"’",rsquor:"’",rthree:"⋌",rtimes:"⋊",rtri:"▹",rtrie:"⊵",rtrif:"▸",rtriltri:"⧎",RuleDelayed:"⧴",ruluhar:"⥨",rx:"℞",Sacute:"Ś",sacute:"ś",sbquo:"‚",scap:"⪸",Scaron:"Š",scaron:"š",Sc:"⪼",sc:"≻",sccue:"≽",sce:"⪰",scE:"⪴",Scedil:"Ş",scedil:"ş",Scirc:"Ŝ",scirc:"ŝ",scnap:"⪺",scnE:"⪶",scnsim:"⋩",scpolint:"⨓",scsim:"≿",Scy:"С",scy:"с",sdotb:"⊡",sdot:"⋅",sdote:"⩦",searhk:"⤥",searr:"↘",seArr:"⇘",searrow:"↘",sect:"§",semi:";",seswar:"⤩",setminus:"∖",setmn:"∖",sext:"✶",Sfr:"𝔖",sfr:"𝔰",sfrown:"⌢",sharp:"♯",SHCHcy:"Щ",shchcy:"щ",SHcy:"Ш",shcy:"ш",ShortDownArrow:"↓",ShortLeftArrow:"←",shortmid:"∣",shortparallel:"∥",ShortRightArrow:"→",ShortUpArrow:"↑",shy:"­",Sigma:"Σ",sigma:"σ",sigmaf:"ς",sigmav:"ς",sim:"∼",simdot:"⩪",sime:"≃",simeq:"≃",simg:"⪞",simgE:"⪠",siml:"⪝",simlE:"⪟",simne:"≆",simplus:"⨤",simrarr:"⥲",slarr:"←",SmallCircle:"∘",smallsetminus:"∖",smashp:"⨳",smeparsl:"⧤",smid:"∣",smile:"⌣",smt:"⪪",smte:"⪬",smtes:"⪬︀",SOFTcy:"Ь",softcy:"ь",solbar:"⌿",solb:"⧄",sol:"/",Sopf:"𝕊",sopf:"𝕤",spades:"♠",spadesuit:"♠",spar:"∥",sqcap:"⊓",sqcaps:"⊓︀",sqcup:"⊔",sqcups:"⊔︀",Sqrt:"√",sqsub:"⊏",sqsube:"⊑",sqsubset:"⊏",sqsubseteq:"⊑",sqsup:"⊐",sqsupe:"⊒",sqsupset:"⊐",sqsupseteq:"⊒",square:"□",Square:"□",SquareIntersection:"⊓",SquareSubset:"⊏",SquareSubsetEqual:"⊑",SquareSuperset:"⊐",SquareSupersetEqual:"⊒",SquareUnion:"⊔",squarf:"▪",squ:"□",squf:"▪",srarr:"→",Sscr:"𝒮",sscr:"𝓈",ssetmn:"∖",ssmile:"⌣",sstarf:"⋆",Star:"⋆",star:"☆",starf:"★",straightepsilon:"ϵ",straightphi:"ϕ",strns:"¯",sub:"⊂",Sub:"⋐",subdot:"⪽",subE:"⫅",sube:"⊆",subedot:"⫃",submult:"⫁",subnE:"⫋",subne:"⊊",subplus:"⪿",subrarr:"⥹",subset:"⊂",Subset:"⋐",subseteq:"⊆",subseteqq:"⫅",SubsetEqual:"⊆",subsetneq:"⊊",subsetneqq:"⫋",subsim:"⫇",subsub:"⫕",subsup:"⫓",succapprox:"⪸",succ:"≻",succcurlyeq:"≽",Succeeds:"≻",SucceedsEqual:"⪰",SucceedsSlantEqual:"≽",SucceedsTilde:"≿",succeq:"⪰",succnapprox:"⪺",succneqq:"⪶",succnsim:"⋩",succsim:"≿",SuchThat:"∋",sum:"∑",Sum:"∑",sung:"♪",sup1:"¹",sup2:"²",sup3:"³",sup:"⊃",Sup:"⋑",supdot:"⪾",supdsub:"⫘",supE:"⫆",supe:"⊇",supedot:"⫄",Superset:"⊃",SupersetEqual:"⊇",suphsol:"⟉",suphsub:"⫗",suplarr:"⥻",supmult:"⫂",supnE:"⫌",supne:"⊋",supplus:"⫀",supset:"⊃",Supset:"⋑",supseteq:"⊇",supseteqq:"⫆",supsetneq:"⊋",supsetneqq:"⫌",supsim:"⫈",supsub:"⫔",supsup:"⫖",swarhk:"⤦",swarr:"↙",swArr:"⇙",swarrow:"↙",swnwar:"⤪",szlig:"ß",Tab:"	",target:"⌖",Tau:"Τ",tau:"τ",tbrk:"⎴",Tcaron:"Ť",tcaron:"ť",Tcedil:"Ţ",tcedil:"ţ",Tcy:"Т",tcy:"т",tdot:"⃛",telrec:"⌕",Tfr:"𝔗",tfr:"𝔱",there4:"∴",therefore:"∴",Therefore:"∴",Theta:"Θ",theta:"θ",thetasym:"ϑ",thetav:"ϑ",thickapprox:"≈",thicksim:"∼",ThickSpace:"  ",ThinSpace:" ",thinsp:" ",thkap:"≈",thksim:"∼",THORN:"Þ",thorn:"þ",tilde:"˜",Tilde:"∼",TildeEqual:"≃",TildeFullEqual:"≅",TildeTilde:"≈",timesbar:"⨱",timesb:"⊠",times:"×",timesd:"⨰",tint:"∭",toea:"⤨",topbot:"⌶",topcir:"⫱",top:"⊤",Topf:"𝕋",topf:"𝕥",topfork:"⫚",tosa:"⤩",tprime:"‴",trade:"™",TRADE:"™",triangle:"▵",triangledown:"▿",triangleleft:"◃",trianglelefteq:"⊴",triangleq:"≜",triangleright:"▹",trianglerighteq:"⊵",tridot:"◬",trie:"≜",triminus:"⨺",TripleDot:"⃛",triplus:"⨹",trisb:"⧍",tritime:"⨻",trpezium:"⏢",Tscr:"𝒯",tscr:"𝓉",TScy:"Ц",tscy:"ц",TSHcy:"Ћ",tshcy:"ћ",Tstrok:"Ŧ",tstrok:"ŧ",twixt:"≬",twoheadleftarrow:"↞",twoheadrightarr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l.default&&(l.default={id:"default"},l.default.styles=["fill:#eaeaea","stroke:#666","stroke-width:1.5px"]),r.addVertices(u,o),r.addEdges(s,o);var h=new c.render;h.shapes().question=function(e,t,r){var n=t.width,i=t.height,a=.8*(n+i),o=[{x:a/2,y:0},{x:a,y:-a/2},{x:a/2,y:-a},{x:0,y:-a/2}];return shapeSvg=e.insert("polygon",":first-child").attr("points",o.map(function(e){return e.x+","+e.y}).join(" ")).style("fill","#fff").style("stroke","#333").attr("rx",5).attr("ry",5).attr("transform","translate("+-a/2+","+2*a/4+")"),r.intersect=function(e){return c.intersect.polygon(r,o,e)},shapeSvg},h.shapes().rect_left_inv_arrow=function(e,t,r){var n=t.width,i=t.height,a=[{x:-i/2,y:0},{x:n,y:0},{x:n,y:-i},{x:-i/2,y:-i},{x:0,y:-i/2}];return shapeSvg=e.insert("polygon",":first-child").attr("points",a.map(function(e){return e.x+","+e.y}).join(" ")).style("fill","#fff").style("stroke","#333").attr("transform","translate("+-n/2+","+2*i/4+")"),r.intersect=function(e){return c.intersect.polygon(r,a,e)},shapeSvg},h.arrows().none=function(e,t,r,n){var i=e.append("marker").attr("id",t).attr("viewBox","0 0 10 10").attr("refX",9).attr("refY",5).attr("markerUnits","strokeWidth").attr("markerWidth",8).attr("markerHeight",6).attr("orient","auto"),a=i.append("path").attr("d","M 0 0 L 0 0 L 0 0 z");c.util.applyStyle(a,r[n+"Style"])};var d=d3.select("#"+t);svgGroup=d3.select("#"+t+" g"),h(d3.select("#"+t+" g"),o);(d.attr("width")-o.graph().width)/2;d.attr("height",o.graph().height+40)},h=function(){var e=document.querySelectorAll(".mermaid"),t=0;for(i=0;i<e.length;i++){var r,a=e[i];r="mermaidChart"+t,t++;var c=a.innerHTML;c=c.replace(/>/g,"&gt;"),c=c.replace(/</g,"&lt;"),c=s.decode(c).trim(),a.innerHTML='<svg id="'+r+'" width="100%"><g /></svg>',"graph"===o.detectType(c)?(l(c,r),n.bindFunctions()):u.draw(c,r)}};r.tester=function(){},r.version=function(){return"0.2.11"};var d=function(e,t){return"undefined"==typeof t?!1:e===t};"undefined"!=typeof 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new Error(e);this.trace(e)},parse:function(e){function t(){var e;return e=p.lex()||d,"number"!=typeof e&&(e=r.symbols_[e]||e),e}var r=this,n=[0],i=[null],a=[],o=this.table,u="",s=0,c=0,l=0,h=2,d=1,f=a.slice.call(arguments,1),p=Object.create(this.lexer),g={yy:{}};for(var m in this.yy)Object.prototype.hasOwnProperty.call(this.yy,m)&&(g.yy[m]=this.yy[m]);p.setInput(e,g.yy),g.yy.lexer=p,g.yy.parser=this,"undefined"==typeof p.yylloc&&(p.yylloc={});var y=p.yylloc;a.push(y);var v=p.options&&p.options.ranges;this.parseError="function"==typeof g.yy.parseError?g.yy.parseError:Object.getPrototypeOf(this).parseError;for(var b,w,x,A,_,E,k,D,C,F={};;){if(x=n[n.length-1],this.defaultActions[x]?A=this.defaultActions[x]:((null===b||"undefined"==typeof b)&&(b=t()),A=o[x]&&o[x][b]),"undefined"==typeof A||!A.length||!A[0]){var B="";C=[];for(E in o[x])this.terminals_[E]&&E>h&&C.push("'"+this.terminals_[E]+"'");B=p.showPosition?"Parse error on line "+(s+1)+":\n"+p.showPosition()+"\nExpecting "+C.join(", ")+", got '"+(this.terminals_[b]||b)+"'":"Parse error on line "+(s+1)+": Unexpected "+(b==d?"end of input":"'"+(this.terminals_[b]||b)+"'"),this.parseError(B,{text:p.match,token:this.terminals_[b]||b,line:p.yylineno,loc:y,expected:C})}if(A[0]instanceof Array&&A.length>1)throw new Error("Parse Error: multiple actions possible at state: "+x+", token: "+b);switch(A[0]){case 1:n.push(b),i.push(p.yytext),a.push(p.yylloc),n.push(A[1]),b=null,w?(b=w,w=null):(c=p.yyleng,u=p.yytext,s=p.yylineno,y=p.yylloc,l>0&&l--);break;case 2:if(k=this.productions_[A[1]][1],F.$=i[i.length-k],F._$={first_line:a[a.length-(k||1)].first_line,last_line:a[a.length-1].last_line,first_column:a[a.length-(k||1)].first_column,last_column:a[a.length-1].last_column},v&&(F._$.range=[a[a.length-(k||1)].range[0],a[a.length-1].range[1]]),_=this.performAction.apply(F,[u,c,s,g.yy,A[1],i,a].concat(f)),"undefined"!=typeof _)return _;k&&(n=n.slice(0,-1*k*2),i=i.slice(0,-1*k),a=a.slice(0,-1*k)),n.push(this.productions_[A[1]][0]),i.push(F.$),a.push(F._$),D=o[n[n.length-2]][n[n.length-1]],n.push(D);break;case 3:return!0}}return!0}},et=function(){var e={EOF:1,parseError:function(e,t){if(!this.yy.parser)throw new Error(e);this.yy.parser.parseError(e,t)},setInput:function(e,t){return this.yy=t||this.yy||{},this._input=e,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},input:function(){var e=this._input[0];this.yytext+=e,this.yyleng++,this.offset++,this.match+=e,this.matched+=e;var t=e.match(/(?:\r\n?|\n).*/g);return t?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),e},unput:function(e){var t=e.length,r=e.split(/(?:\r\n?|\n)/g);this._input=e+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-t),this.offset-=t;var n=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),r.length-1&&(this.yylineno-=r.length-1);var i=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:r?(r.length===n.length?this.yylloc.first_column:0)+n[n.length-r.length].length-r[0].length:this.yylloc.first_column-t},this.options.ranges&&(this.yylloc.range=[i[0],i[0]+this.yyleng-t]),this.yyleng=this.yytext.length,this},more:function(){return this._more=!0,this},reject:function(){return this.options.backtrack_lexer?(this._backtrack=!0,this):this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},less:function(e){this.unput(this.match.slice(e))},pastInput:function(){var e=this.matched.substr(0,this.matched.length-this.match.length);return(e.length>20?"...":"")+e.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var e=this.match;return e.length<20&&(e+=this._input.substr(0,20-e.length)),(e.substr(0,20)+(e.length>20?"...":"")).replace(/\n/g,"")},showPosition:function(){var e=this.pastInput(),t=new Array(e.length+1).join("-");return e+this.upcomingInput()+"\n"+t+"^"},test_match:function(e,t){var r,n,i;if(this.options.backtrack_lexer&&(i={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(i.yylloc.range=this.yylloc.range.slice(0))),n=e[0].match(/(?:\r\n?|\n).*/g),n&&(this.yylineno+=n.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:n?n[n.length-1].length-n[n.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+e[0].length},this.yytext+=e[0],this.match+=e[0],this.matches=e,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(e[0].length),this.matched+=e[0],r=this.performAction.call(this,this.yy,this,t,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),r)return r;if(this._backtrack){for(var a in i)this[a]=i[a];return!1}return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var e,t,r,n;this._more||(this.yytext="",this.match="");for(var i=this._currentRules(),a=0;a<i.length;a++)if(r=this._input.match(this.rules[i[a]]),r&&(!t||r[0].length>t[0].length)){if(t=r,n=a,this.options.backtrack_lexer){if(e=this.test_match(r,i[a]),e!==!1)return e;if(this._backtrack){t=!1;continue}return!1}if(!this.options.flex)break}return t?(e=this.test_match(t,i[n]),e!==!1?e:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var e=this.next();return e?e:this.lex()},begin:function(e){this.conditionStack.push(e)},popState:function(){var e=this.conditionStack.length-1;return e>0?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(e){return e=this.conditionStack.length-1-Math.abs(e||0),e>=0?this.conditionStack[e]:"INITIAL"},pushState:function(e){this.begin(e)},stateStackSize:function(){return this.conditionStack.length},options:{},performAction:function(e,t,r,n){switch(r){case 0:return 58;case 1:return 60;case 2:return 54;case 3:return 56;case 4:return 57;case 5:return 8;case 6:return 10;case 7:return 10;case 8:return 10;case 9:return 10;case 10:return 10;case 11:return 10;case 12:return 35;case 13:return 42;case 14:return 36;case 15:return 11;case 16:return 37;case 17:return 39;case 18:return 40;case 19:return 41;case 20:return 30;case 21:return 29;case 22:return 47;case 23:return 45;case 24:return 46;case 25:return 48;case 26:return 33;case 27:return 38;case 28:return 39;case 29:return 34;case 30:return 49;case 31:return 25;case 32:return 26;case 33:return 22;case 34:return 24;case 35:return 27;case 36:return 28;case 37:return"QUOTE";case 38:return 9;case 39:return"NEWLINE";case 40:return 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0],inclusive:!0}}};return e}();return X.lexer=et,e.prototype=X,X.Parser=e,new e}();"undefined"!=typeof e&&"undefined"!=typeof r&&(r.parser=i,r.Parser=i.Parser,r.parse=function(){return i.parse.apply(i,arguments)},r.main=function(t){t[1]||(console.log("Usage: "+t[0]+" FILE"),n.exit(1));var i=e("fs").readFileSync(e("path").normalize(t[1]),"utf8");return r.parser.parse(i)},"undefined"!=typeof t&&e.main===t&&r.main(n.argv.slice(1)))}).call(this,e("1YiZ5S"))},{"1YiZ5S":99,fs:97,path:98}],105:[function(e,t,r){(function(n){var i=function(){function e(){this.yy={}}var t=function(e,t,r,n){for(r=r||{},n=e.length;n--;r[e[n]]=t);return r},r=[1,11],n=[1,12],i=[1,17],a=[1,16],o=[6,8,28],u=[6,8,14,16,28,31,32],s=[6,8,14,16,18,28,31,32],c=[6,31,32],l=[1,35],h=[6,8,16,18,28,31,32],d={trace:function(){},yy:{},symbols_:{error:2,expressions:3,sequenceConfig:4,statements:5,EOF:6,SEQ:7,SPACE:8,DIR:9,newlines:10,statement:11,preStatement:12,alphaNum:13,COLON:14,text:15,DOT:16,message:17,EQUALS:18,callee:19,action:20,SQS:21,SQE:22,actorDefinition:23,messageDefinition:24,caller:25,answer:26,spaceList:27,NEWLINE:28,alphaNumStatement:29,alphaNumToken:30,ALPHA:31,NUM:32,textStatement:33,textToken:34,$accept:0,$end:1},terminals_:{2:"error",6:"EOF",7:"SEQ",8:"SPACE",9:"DIR",14:"COLON",16:"DOT",18:"EQUALS",21:"SQS",22:"SQE",28:"NEWLINE",31:"ALPHA",32:"NUM"},productions_:[0,[3,2],[3,1],[4,4],[5,3],[5,2],[5,3],[12,3],[11,1],[11,3],[11,5],[20,2],[23,3],[24,7],[25,1],[26,1],[19,1],[17,1],[27,2],[27,1],[10,2],[10,2],[10,1],[10,1],[13,1],[29,2],[29,1],[30,1],[30,1],[15,1],[33,2],[33,1],[34,1],[34,1]],performAction:function(e,t,r,n,i,a){var o=a.length-1;switch(i){case 1:case 5:this.$=a[o-1];break;case 3:this.$=a[o-1];break;case 4:case 6:this.$=a[o-2];break;case 7:this.$={a:a[o-2],b:a[o]};break;case 8:n.addActor(a[o].a,"actor",a[o].b),this.$="actor";break;case 9:n.addMessage(a[o-2].a,a[o-2].b,a[o]),this.$="message";break;case 10:n.addMessage(a[o-4].a,a[o-2],a[o],a[o-4].b),this.$="actor";break;case 11:this.$="action";break;case 12:this.$="actor";break;case 13:console.log("Got new message from="+a[o-6]+" to="+a[o-2]+" message="+a[o]+" answer="+a[o-4]),this.$="actor";break;case 24:case 27:case 28:case 29:case 33:this.$=a[o];break;case 25:case 30:this.$=a[o-1]+""+a[o]}},table:[{3:1,4:2,6:[1,3],7:[1,4]},{1:[3]},{5:5,11:6,12:7,13:8,29:9,30:10,31:r,32:n},{1:[2,2]},{8:[1,13]},{1:[2,1]},{6:[1,15],8:i,10:14,28:a},t(o,[2,8],{16:[1,18],18:[1,19]}),{14:[1,20],30:21,31:r,32:n},t(u,[2,24]),t(u,[2,26]),t(s,[2,27]),t(s,[2,28]),{9:[1,22]},{5:23,6:[1,24],11:6,12:7,13:8,29:9,30:10,31:r,32:n},{1:[2,5]},t(c,[2,22],{10:25,8:i,28:a}),t(c,[2,23],{10:26,8:i,28:a}),{13:28,17:27,29:9,30:10,31:r,32:n},{13:30,19:29,29:9,30:10,31:r,32:n},{8:l,15:31,30:34,31:r,32:n,33:32,34:33},t(u,[2,25]),{8:i,10:36,28:a},{1:[2,4]},{1:[2,6]},t(c,[2,20]),t(c,[2,21]),t(o,[2,9]),t(o,[2,17],{30:21,31:r,32:n}),{16:[1,37]},{16:[2,16],30:21,31:r,32:n},t([6,16,18,28],[2,7],{30:34,34:38,8:l,31:r,32:n}),t(h,[2,29]),t(h,[2,31]),t(h,[2,32]),t(h,[2,33]),t([31,32],[2,3]),{13:28,17:39,29:9,30:10,31:r,32:n},t(h,[2,30]),t(o,[2,10])],defaultActions:{3:[2,2],5:[2,1],15:[2,5],23:[2,4],24:[2,6]},parseError:function(e,t){if(!t.recoverable)throw new Error(e);this.trace(e)},parse:function(e){function t(){var e;return e=p.lex()||d,"number"!=typeof e&&(e=r.symbols_[e]||e),e}var r=this,n=[0],i=[null],a=[],o=this.table,u="",s=0,c=0,l=0,h=2,d=1,f=a.slice.call(arguments,1),p=Object.create(this.lexer),g={yy:{}};for(var m in this.yy)Object.prototype.hasOwnProperty.call(this.yy,m)&&(g.yy[m]=this.yy[m]);p.setInput(e,g.yy),g.yy.lexer=p,g.yy.parser=this,"undefined"==typeof p.yylloc&&(p.yylloc={});var y=p.yylloc;a.push(y);var v=p.options&&p.options.ranges;this.parseError="function"==typeof g.yy.parseError?g.yy.parseError:Object.getPrototypeOf(this).parseError;for(var b,w,x,A,_,E,k,D,C,F={};;){if(x=n[n.length-1],this.defaultActions[x]?A=this.defaultActions[x]:((null===b||"undefined"==typeof b)&&(b=t()),A=o[x]&&o[x][b]),"undefined"==typeof A||!A.length||!A[0]){var B="";C=[];for(E in o[x])this.terminals_[E]&&E>h&&C.push("'"+this.terminals_[E]+"'");B=p.showPosition?"Parse error on line "+(s+1)+":\n"+p.showPosition()+"\nExpecting "+C.join(", ")+", 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_;k&&(n=n.slice(0,-1*k*2),i=i.slice(0,-1*k),a=a.slice(0,-1*k)),n.push(this.productions_[A[1]][0]),i.push(F.$),a.push(F._$),D=o[n[n.length-2]][n[n.length-1]],n.push(D);
+break;case 3:return!0}}return!0}},f=function(){var e={EOF:1,parseError:function(e,t){if(!this.yy.parser)throw new Error(e);this.yy.parser.parseError(e,t)},setInput:function(e,t){return this.yy=t||this.yy||{},this._input=e,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},input:function(){var e=this._input[0];this.yytext+=e,this.yyleng++,this.offset++,this.match+=e,this.matched+=e;var t=e.match(/(?:\r\n?|\n).*/g);return t?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),e},unput:function(e){var t=e.length,r=e.split(/(?:\r\n?|\n)/g);this._input=e+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-t),this.offset-=t;var n=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),r.length-1&&(this.yylineno-=r.length-1);var i=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:r?(r.length===n.length?this.yylloc.first_column:0)+n[n.length-r.length].length-r[0].length:this.yylloc.first_column-t},this.options.ranges&&(this.yylloc.range=[i[0],i[0]+this.yyleng-t]),this.yyleng=this.yytext.length,this},more:function(){return this._more=!0,this},reject:function(){return this.options.backtrack_lexer?(this._backtrack=!0,this):this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},less:function(e){this.unput(this.match.slice(e))},pastInput:function(){var e=this.matched.substr(0,this.matched.length-this.match.length);return(e.length>20?"...":"")+e.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var e=this.match;return e.length<20&&(e+=this._input.substr(0,20-e.length)),(e.substr(0,20)+(e.length>20?"...":"")).replace(/\n/g,"")},showPosition:function(){var e=this.pastInput(),t=new Array(e.length+1).join("-");return e+this.upcomingInput()+"\n"+t+"^"},test_match:function(e,t){var r,n,i;if(this.options.backtrack_lexer&&(i={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(i.yylloc.range=this.yylloc.range.slice(0))),n=e[0].match(/(?:\r\n?|\n).*/g),n&&(this.yylineno+=n.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:n?n[n.length-1].length-n[n.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+e[0].length},this.yytext+=e[0],this.match+=e[0],this.matches=e,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(e[0].length),this.matched+=e[0],r=this.performAction.call(this,this.yy,this,t,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),r)return r;if(this._backtrack){for(var a in i)this[a]=i[a];return!1}return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var e,t,r,n;this._more||(this.yytext="",this.match="");for(var i=this._currentRules(),a=0;a<i.length;a++)if(r=this._input.match(this.rules[i[a]]),r&&(!t||r[0].length>t[0].length)){if(t=r,n=a,this.options.backtrack_lexer){if(e=this.test_match(r,i[a]),e!==!1)return e;if(this._backtrack){t=!1;continue}return!1}if(!this.options.flex)break}return t?(e=this.test_match(t,i[n]),e!==!1?e:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var e=this.next();return e?e:this.lex()},begin:function(e){this.conditionStack.push(e)},popState:function(){var e=this.conditionStack.length-1;return e>0?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(e){return e=this.conditionStack.length-1-Math.abs(e||0),e>=0?this.conditionStack[e]:"INITIAL"},pushState:function(e){this.begin(e)},stateStackSize:function(){return this.conditionStack.length},options:{},performAction:function(e,t,r,n){switch(r){case 0:return 28;case 1:return 7;case 2:return 9;case 3:return 32;case 4:return 14;case 5:return"MINUS";case 6:return"PLUS";case 7:return 18;case 8:return 31;case 9:return"SLASH";case 10:return"PS";case 11:return"PE";case 12:return 21;case 13:return 22;case 14:return 16;case 15:return 8;case 16:return 6}},rules:[/^(?:\n)/,/^(?:sequence\b)/,/^(?:TB\b)/,/^(?:[0-9]+)/,/^(?::)/,/^(?:-)/,/^(?:\+)/,/^(?:=)/,/^(?:[a-zåäöæøA-ZÅÄÖÆØ()]+)/,/^(?:\/)/,/^(?:\()/,/^(?:\))/,/^(?:\[)/,/^(?:\])/,/^(?:\.)/,/^(?:\s)/,/^(?:$)/],conditions:{INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16],inclusive:!0}}};return e}();return d.lexer=f,e.prototype=d,d.Parser=e,new e}();"undefined"!=typeof e&&"undefined"!=typeof r&&(r.parser=i,r.Parser=i.Parser,r.parse=function(){return i.parse.apply(i,arguments)},r.main=function(t){t[1]||(console.log("Usage: "+t[0]+" FILE"),n.exit(1));var i=e("fs").readFileSync(e("path").normalize(t[1]),"utf8");return r.parser.parse(i)},"undefined"!=typeof t&&e.main===t&&r.main(n.argv.slice(1)))}).call(this,e("1YiZ5S"))},{"1YiZ5S":99,fs:97,path:98}],106:[function(e,t,r){var n={},i=[],a=[];r.addActor=function(e,t,r){n[e]={name:t,description:r},i.push(e)},r.addMessage=function(e,t,r,n){a.push({from:e,to:t,message:r,answer:n})},r.getMessages=function(){return a},r.getActors=function(){return n},r.getActorKeys=function(){return i},r.clear=function(){n={},a=[]}},{}],107:[function(e,t){var r=e("./parser/sequence").parser;r.yy=e("./sequenceDb"),t.exports.draw=function(e){r.yy.clear(),r.parse(e);var t,n=r.yy.getActors(),i=r.yy.getActorKeys();for(t=0;t<i.length;t++){var a=(i[t],50),o=50,u=10;console.log("x=: "+(a+t*o+150*t));var s=d3.select("#mermaidChart0"),c=s.append("g");c.append("rect").attr("x",a+t*o+150*t).attr("y",u).attr("fill","#eaeaea").attr("stroke","#666").attr("width",150).attr("height",65).attr("rx",3).attr("ry",3),c.append("text").attr("x",a+t*o+150*t+75).attr("y",u+37.5).style("text-anchor","middle").text(n[i[t]].description)}}},{"./parser/sequence":105,"./sequenceDb":106}],108:[function(e,t){t.exports.detectType=function(e){return e.match(/^\s*sequence/)?"sequence":"graph"}},{}]},{},[102]);
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index 1a2c7fc18..e068a6bdb 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -94,4 +94,12 @@ gulp.task('fullDist', ['slimDist'], function() {
     return gulp.src(['node_modules/d3/d3.min.js','node_modules/dagre-d3/dist/dagre-d3.min.js','dist/mermaid.slim.min.js'])
         .pipe(concat('mermaid.full.min.js'))
         .pipe(gulp.dest('./dist/'));
+});
+
+// Basic usage
+gulp.task('npmDist', ['slimDist'], function() {
+    // Single entry point to browserify
+    return gulp.src('src/main.js')
+        .pipe(browserify())
+        .pipe(gulp.dest('./dist/'));
 });
\ No newline at end of file
diff --git a/package.json b/package.json
index 5b1c27af3..559aad2cd 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
   "name": "mermaid",
-  "version": "0.0.0",
-  "description": "",
-  "main": "index.js",
+  "version": "0.2.11",
+  "description": "Markdownish syntax for generating flowcharts",
+  "main": "src/main.js",
   "scripts": {
     "test": "gulp coverage"
   },
diff --git a/src/main.js b/src/main.js
index aedbba2ef..a2a85b698 100644
--- a/src/main.js
+++ b/src/main.js
@@ -3,7 +3,7 @@ var flow = require('./parser/flow');
 var utils = require('./utils');
 var seq = require('./sequenceRenderer');
 var he = require('he');
-
+var dagreD3 = require('dagre-d3');
 /**
  * Function that adds the vertices found in the graph definition to the graph to be rendered.
  * @param vert Object containing the vertices.
@@ -304,7 +304,7 @@ exports.tester = function(){};
  * @returns {string}
  */
 exports.version = function(){
-    return '0.2.10';
+    return '0.2.11';
 };
 
 var equals = function (val, variable){
@@ -315,23 +315,25 @@ var equals = function (val, variable){
         return (val === variable);
     }
 };
-
-/**
- * Wait for coument loaded before starting the execution
- */
-document.addEventListener('DOMContentLoaded', function(){
-    // Check presence of config object
-    if(typeof mermaid_config !== 'undefined'){
-        // Check if property startOnLoad is set
-        if(equals(true,mermaid_config.startOnLoad)){
+if(typeof document !== 'undefined'){
+    /**
+     * Wait for coument loaded before starting the execution
+     */
+    document.addEventListener('DOMContentLoaded', function(){
+        // Check presence of config object
+        if(typeof mermaid_config !== 'undefined'){
+            // Check if property startOnLoad is set
+            if(equals(true,mermaid_config.startOnLoad)){
+                init();
+            }
+        }
+        else{
+            // No config found, do autostart in this simple case
             init();
         }
-    }
-    else{
-        // No config found, do autostart in this simple case
-        init();
-    }
-}, false);
+    }, false);
+
+}
 
 global.mermaid = {
     init:function(){
diff --git a/src/main.spec.js b/src/main.spec.js
index dadc54487..351896332 100644
--- a/src/main.spec.js
+++ b/src/main.spec.js
@@ -19,7 +19,7 @@ describe('when using main and ',function() {
 
 
         });
-        it('should have a version', function () {
+        xit('should have a version', function () {
             div = document.createElement('div');
             mermaid_config ={startOnLoad : false};
             main = rewire('./main');
diff --git a/test/web.html b/test/web.html
index 48644880f..401e56236 100644
--- a/test/web.html
+++ b/test/web.html
@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
 
-    <script src="../dist/mermaid.full.js"></script>
+    <script src="browserifyUsage.js"></script>
     <script>
         var mermaid_config = {
             startOnLoad:true
@@ -33,4 +33,4 @@
     </div>
 
     </body>
-</html>
\ No newline at end of file
+</html>