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Diffstat (limited to 'src/strings/strings.go')
| -rw-r--r-- | src/strings/strings.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/strings/strings.go b/src/strings/strings.go index c6085f51d5..7b8a6b536b 100644 --- a/src/strings/strings.go +++ b/src/strings/strings.go @@ -271,6 +271,16 @@ func LastIndexAny(s, chars string) int { return -1 } +// LastIndexByte returns the index of the last instance of c in s, or -1 if c is not present in s. +func LastIndexByte(s string, c byte) int { + for i := len(s) - 1; i >= 0; i-- { + if s[i] == c { + return i + } + } + return -1 +} + // Generic split: splits after each instance of sep, // including sepSave bytes of sep in the subarrays. func genSplit(s, sep string, sepSave, n int) []string { |