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| author | Stephen Weinberg <stephen@q5comm.com> | 2010-01-25 18:50:51 -0800 |
|---|---|---|
| committer | Stephen Weinberg <stephen@q5comm.com> | 2010-01-25 18:50:51 -0800 |
| commit | 3ed83878d067bfb4eaa5ba5390bcde974382000f (patch) | |
| tree | 8d0d9e3b2971a73057ff25f7a13b6b790352dfae | |
| parent | 0994534adbc649cd88a7c66eefb549a8d05231aa (diff) | |
| download | golang-3ed83878d067bfb4eaa5ba5390bcde974382000f.tar.gz | |
xml: add Escape, copied from template.HTMLEscape.
R=rsc
CC=golang-dev
http://codereview.appspot.com/186282
Committer: Russ Cox <rsc@golang.org>
| -rw-r--r-- | src/pkg/xml/xml.go | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/pkg/xml/xml.go b/src/pkg/xml/xml.go index 346b34649..33a86a255 100644 --- a/src/pkg/xml/xml.go +++ b/src/pkg/xml/xml.go @@ -1479,3 +1479,38 @@ var htmlAutoClose = []string{ "base", "meta", } + +var ( + esc_quot = strings.Bytes(""") // shorter than """ + esc_apos = strings.Bytes("'") // shorter than "'" + esc_amp = strings.Bytes("&") + esc_lt = strings.Bytes("<") + esc_gt = strings.Bytes(">") +) + +// Escape writes to w the properly escaped XML equivalent +// of the plain text data s. +func Escape(w io.Writer, s []byte) { + var esc []byte + last := 0 + for i, c := range s { + switch c { + case '"': + esc = esc_quot + case '\'': + esc = esc_apos + case '&': + esc = esc_amp + case '<': + esc = esc_lt + case '>': + esc = esc_gt + default: + continue + } + w.Write(s[last:i]) + w.Write(esc) + last = i + 1 + } + w.Write(s[last:]) +} |