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index_group_parser.go
39 lines (36 loc) 路 1.21 KB
/
index_group_parser.go
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package utils
import (
"regexp"
"strings"
)
type IndexGroups map[string]string
// ParseIndexGroups
// The specification is a space-separated list of index entries. Normally, each entry is just a single character,
// but you may also specify multiple characters. For instance, the entry "The" will link to all files and
// folders starting with "The".
//
// You may also create an entry using a group of index characters in parentheses. For instance, the entry
// "A-E(ABCDE)" will display as "A-E" and link to all files and folders starting with either
// A, B, C, D or E. This may be useful for grouping less-frequently used characters (such and X, Y and Z), or
// for grouping accented characters (such as A, \u00C0 and \u00C1)
//
// Files and folders that are not covered by an index entry will be placed under the index entry "#".
func ParseIndexGroups(spec string) IndexGroups {
parsed := make(IndexGroups)
split := strings.Split(spec, " ")
re := regexp.MustCompile(`(.+)\((.+)\)`)
for _, g := range split {
sub := re.FindStringSubmatch(g)
if len(sub) > 0 {
i := 0
chars := strings.Split(sub[2], "")
for _, c := range chars {
parsed[c] = sub[1]
i++
}
} else {
parsed[g] = g
}
}
return parsed
}