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bytes, strings: add ReplaceAll

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Credit to Harald Nordgren for the proposal in
https://golang.org/cl/137456 and #27864.

Fixes #27864

Change-Id: I80546683b0623124fe4627a71af88add2f6c1c27
Reviewed-on: https://go-review.googlesource.com/137855
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Brad Fitzpatrick 2018-09-26 20:19:11 +00:00
parent 5a8c11ce3e
commit ebdc0b8d68
4 changed files with 30 additions and 0 deletions
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9
src/bytes/bytes.go
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@ -774,6 +774,15 @@ func Replace(s, old, new []byte, n int) []byte {
return t[0:w]
}
// ReplaceAll returns a copy of the slice s with all
// non-overlapping instances of old replaced by new.
// If old is empty, it matches at the beginning of the slice
// and after each UTF-8 sequence, yielding up to k+1 replacements
// for a k-rune slice.
func ReplaceAll(s, old, new []byte) []byte {
return Replace(s, old, new, -1)
}
// EqualFold reports whether s and t, interpreted as UTF-8 strings,
// are equal under Unicode case-folding.
func EqualFold(s, t []byte) bool {