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| author | Caleb Spare <cespare@gmail.com> | 2014-08-25 14:42:27 -0700 |
|---|---|---|
| committer | Rob Pike <r@golang.org> | 2014-08-25 14:42:27 -0700 |
| commit | 2c121b68b1c39f0a36546db2457d34e18c4bf73a (patch) | |
| tree | 8eb175435ea957a79efd86314982f064d196e79f /src/pkg/bytes/bytes.go | |
| parent | 958a6101eb75747555b2d5596de9ed93a54b83df (diff) | |
| download | go-2c121b68b1c39f0a36546db2457d34e18c4bf73a.tar.xz | |
strings, bytes: document behavior of Replace when old is empty
Fixes #8143.
LGTM=r
R=rsc, bradfitz, r
CC=golang-codereviews
https://golang.org/cl/135760043
Diffstat (limited to 'src/pkg/bytes/bytes.go')
| -rw-r--r-- | src/pkg/bytes/bytes.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/pkg/bytes/bytes.go b/src/pkg/bytes/bytes.go index d8b6f998b3..34c22bbfb1 100644 --- a/src/pkg/bytes/bytes.go +++ b/src/pkg/bytes/bytes.go @@ -605,6 +605,9 @@ func Runes(s []byte) []rune { // Replace returns a copy of the slice s with the first n // 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. // If n < 0, there is no limit on the number of replacements. func Replace(s, old, new []byte, n int) []byte { m := 0 |