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Also report submatch positions

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This commit is contained in:
Kovid Goyal
2022-09-21 22:49:37 +05:30
parent dffb87ced9
commit 3078b9074a
2 changed files with 11 additions and 6 deletions
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11
tools/utils/regexp.go
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@@ -53,7 +53,12 @@ func (self *UnboundedCache[K, V]) MustGetOrCreate(key K, create func(key K) V) V
var pat_cache = NewUnboundedCache[string, *regexp.Regexp]()
func ReplaceAll(pat, str string, repl func(full_match string, groupdict map[string]string) string) string {
type SubMatch struct {
Text string
Start, End int
}
func ReplaceAll(pat, str string, repl func(full_match string, groupdict map[string]SubMatch) string) string {
cpat := pat_cache.MustGetOrCreate(pat, regexp.MustCompile)
result := strings.Builder{}
result.Grow(len(str) + 256)
@@ -63,14 +68,14 @@ func ReplaceAll(pat, str string, repl func(full_match string, groupdict map[stri
for _, v := range matches {
match_start, match_end := v[0], v[1]
full_match := str[match_start:match_end]
groupdict := make(map[string]string, len(names))
groupdict := make(map[string]SubMatch, len(names))
for i, name := range names {
if i == 0 {
continue
}
idx := 2 * i
if v[idx] > -1 && v[idx+1] > -1 {
groupdict[name] = str[v[idx]:v[idx+1]]
groupdict[name] = SubMatch{Text: str[v[idx]:v[idx+1]], Start: v[idx] - match_start, End: v[idx+1] - match_start}
}
}
result.WriteString(str[last_index:match_start])