Backport #22814.
The use of `sort.Search` is wrong: The slice should be sorted, and
`return >= 0` doen't mean it exists, see the
[manual](https://pkg.go.dev/sort#Search).
Could be fixed like this if we really need it:
```diff
diff --git a/modules/charset/escape_stream.go b/modules/charset/escape_stream.go
index 823b63513..fcf1ffbc1 100644
--- a/modules/charset/escape_stream.go
+++ b/modules/charset/escape_stream.go
@@ -20,6 +20,9 @@ import (
var defaultWordRegexp = regexp.MustCompile(`(-?\d*\.\d\w*)|([^\` + "`" + `\~\!\@\#\$\%\^\&\*\(\)\-\=\+\[\{\]\}\\\|\;\:\'\"\,\.\<\>\/\?\s\x00-\x1f]+)`)
func NewEscapeStreamer(locale translation.Locale, next HTMLStreamer, allowed ...rune) HTMLStreamer {
+ sort.Slice(allowed, func(i, j int) bool {
+ return allowed[i] < allowed[j]
+ })
return &escapeStreamer{
escaped: &EscapeStatus{},
PassthroughHTMLStreamer: *NewPassthroughStreamer(next),
@@ -284,14 +287,8 @@ func (e *escapeStreamer) runeTypes(runes ...rune) (types []runeType, confusables
}
func (e *escapeStreamer) isAllowed(r rune) bool {
- if len(e.allowed) == 0 {
- return false
- }
- if len(e.allowed) == 1 {
- return e.allowed[0] == r
- }
-
- return sort.Search(len(e.allowed), func(i int) bool {
+ i := sort.Search(len(e.allowed), func(i int) bool {
return e.allowed[i] >= r
- }) >= 0
+ })
+ return i < len(e.allowed) && e.allowed[i] == r
}
```
But I don't think so, a map is better to do it.
Jason Song
77c89572e9