diff options
Diffstat (limited to 'Godeps/_workspace/src/golang.org/x/text/transform/transform.go')
| -rw-r--r-- | Godeps/_workspace/src/golang.org/x/text/transform/transform.go | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/Godeps/_workspace/src/golang.org/x/text/transform/transform.go b/Godeps/_workspace/src/golang.org/x/text/transform/transform.go index 157ee7892..f79b461b8 100644 --- a/Godeps/_workspace/src/golang.org/x/text/transform/transform.go +++ b/Godeps/_workspace/src/golang.org/x/text/transform/transform.go @@ -596,11 +596,25 @@ func String(t Transformer, s string) (result string, n int, err error) { // Bytes returns a new byte slice with the result of converting b[:n] using t, // where n <= len(b). If err == nil, n will be len(b). It calls Reset on t. func Bytes(t Transformer, b []byte) (result []byte, n int, err error) { + return doAppend(t, 0, make([]byte, len(b)), b) +} + +// Append appends the result of converting src[:n] using t to dst, where +// n <= len(src), If err == nil, n will be len(src). It calls Reset on t. +func Append(t Transformer, dst, src []byte) (result []byte, n int, err error) { + if len(dst) == cap(dst) { + n := len(src) + len(dst) // It is okay for this to be 0. + b := make([]byte, n) + dst = b[:copy(b, dst)] + } + return doAppend(t, len(dst), dst[:cap(dst)], src) +} + +func doAppend(t Transformer, pDst int, dst, src []byte) (result []byte, n int, err error) { t.Reset() - dst := make([]byte, len(b)) - pDst, pSrc := 0, 0 + pSrc := 0 for { - nDst, nSrc, err := t.Transform(dst[pDst:], b[pSrc:], true) + nDst, nSrc, err := t.Transform(dst[pDst:], src[pSrc:], true) pDst += nDst pSrc += nSrc if err != ErrShortDst { |