40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
package utils
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import (
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"regexp"
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"strings"
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)
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type IndexGroups map[string]string
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// ParseIndexGroups
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// The specification is a space-separated list of index entries. Normally, each entry is just a single character,
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// but you may also specify multiple characters. For instance, the entry "The" will link to all files and
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// folders starting with "The".
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//
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// You may also create an entry using a group of index characters in parentheses. For instance, the entry
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// "A-E(ABCDE)" will display as "A-E" and link to all files and folders starting with either
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// A, B, C, D or E. This may be useful for grouping less-frequently used characters (such and X, Y and Z), or
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// for grouping accented characters (such as A, \u00C0 and \u00C1)
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//
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// Files and folders that are not covered by an index entry will be placed under the index entry "#".
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func ParseIndexGroups(spec string) IndexGroups {
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parsed := make(IndexGroups)
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split := strings.Split(spec, " ")
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re := regexp.MustCompile(`(.+)\((.+)\)`)
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for _, g := range split {
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sub := re.FindStringSubmatch(g)
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if len(sub) > 0 {
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i := 0
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chars := strings.Split(sub[2], "")
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for _, c := range chars {
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parsed[c] = sub[1]
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i++
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}
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} else {
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parsed[g] = g
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}
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}
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return parsed
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}
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