2018-03-09 06:33:35 +01:00
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import * as d3 from 'd3'
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2015-10-17 10:39:20 +02:00
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/**
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* @function detectType
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* Detects the type of the graph text.
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* ```mermaid
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* graph LR
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* a-->b
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* b-->c
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* c-->d
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* d-->e
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* e-->f
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* f-->g
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* g-->h
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* ```
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*
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* @param {string} text The text defining the graph
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* @returns {string} A graph definition key
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*/
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2017-09-09 08:46:58 +02:00
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export const detectType = function (text) {
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2017-04-11 16:14:25 +02:00
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text = text.replace(/^\s*%%.*\n/g, '\n')
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if (text.match(/^\s*sequenceDiagram/)) {
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2018-03-12 14:16:22 +01:00
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return 'sequence'
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2017-04-11 16:14:25 +02:00
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}
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2015-10-17 10:39:20 +02:00
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2017-04-11 16:14:25 +02:00
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if (text.match(/^\s*gantt/)) {
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return 'gantt'
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}
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2015-10-17 10:39:20 +02:00
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2017-04-11 16:14:25 +02:00
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if (text.match(/^\s*classDiagram/)) {
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2018-03-12 14:16:22 +01:00
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return 'class'
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2017-04-11 16:14:25 +02:00
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}
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2015-10-30 10:47:25 +01:00
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2017-04-11 16:14:25 +02:00
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if (text.match(/^\s*gitGraph/)) {
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2018-03-12 14:16:22 +01:00
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return 'git'
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2017-04-11 16:14:25 +02:00
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}
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2018-03-12 14:06:49 +01:00
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return 'flowchart'
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2017-04-11 16:14:25 +02:00
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}
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2015-10-17 10:39:20 +02:00
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2017-01-07 18:53:49 +01:00
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/**
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* @function isSubstringInArray
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* Detects whether a substring in present in a given array
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* @param {string} str The substring to detect
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* @param {array} arr The array to search
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* @returns {number} the array index containing the substring or -1 if not present
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**/
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2017-09-09 08:46:58 +02:00
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export const isSubstringInArray = function (str, arr) {
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for (let i = 0; i < arr.length; i++) {
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2017-04-11 16:14:25 +02:00
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if (arr[i].match(str)) return i
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2017-01-07 18:53:49 +01:00
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}
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2017-04-11 16:14:25 +02:00
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return -1
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}
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2017-09-10 13:41:34 +02:00
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2018-03-09 06:33:35 +01:00
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export const interpolateToCurve = (interpolate, defaultCurve) => {
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2018-03-18 02:35:28 +01:00
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if (!interpolate) {
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return defaultCurve
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}
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const curveName = `curve${interpolate.charAt(0).toUpperCase() + interpolate.slice(1)}`
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return d3[curveName] || defaultCurve
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2018-03-09 06:33:35 +01:00
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}
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2017-09-10 13:41:34 +02:00
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export default {
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detectType,
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2018-03-09 06:33:35 +01:00
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isSubstringInArray,
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interpolateToCurve
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2017-09-10 13:41:34 +02:00
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}
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