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Start work on porting hints kitten to Go

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This commit is contained in:
Kovid Goyal
2023-03-08 20:06:26 +05:30
parent bcd3802d3e
commit 09ceb3c0be
12 changed files with 523 additions and 12 deletions
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13
tools/utils/regexp.go
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@@ -25,24 +25,23 @@ func MustCompile(pat string) *regexp.Regexp {
return pat_cache.MustGetOrCreate(pat, regexp.MustCompile)
}
func ReplaceAll(pat, str string, repl func(full_match string, groupdict map[string]SubMatch) string) string {
cpat := MustCompile(pat)
func ReplaceAll(cpat *regexp.Regexp, str string, repl func(full_match string, groupdict map[string]SubMatch) string) string {
result := strings.Builder{}
result.Grow(len(str) + 256)
last_index := 0
matches := cpat.FindAllStringSubmatchIndex(str, -1)
names := cpat.SubexpNames()
groupdict := make(map[string]SubMatch, len(names))
for _, v := range matches {
match_start, match_end := v[0], v[1]
full_match := str[match_start:match_end]
groupdict := make(map[string]SubMatch, len(names))
for k := range groupdict {
delete(groupdict, k)
}
for i, name := range names {
if i == 0 {
continue
}
idx := 2 * i
if v[idx] > -1 && v[idx+1] > -1 {
groupdict[name] = SubMatch{Text: str[v[idx]:v[idx+1]], Start: v[idx] - match_start, End: v[idx+1] - match_start}
groupdict[name] = SubMatch{Text: str[v[idx]:v[idx+1]], Start: v[idx], End: v[idx+1]}
}
}
result.WriteString(str[last_index:match_start])

4
tools/utils/set.go
View File

@@ -55,6 +55,10 @@ func (self *Set[T]) Iterable() map[T]struct{} {
return self.items
}
func (self *Set[T]) AsSlice() []T {
return maps.Keys(self.items)
}
func (self *Set[T]) Intersect(other *Set[T]) (ans *Set[T]) {
if self.Len() < other.Len() {
ans = NewSet[T](self.Len())