diff options
Diffstat (limited to 'libgo/go/html/template/html.go')
| -rw-r--r-- | libgo/go/html/template/html.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libgo/go/html/template/html.go b/libgo/go/html/template/html.go index 2ea5a7d..13a0cd0 100644 --- a/libgo/go/html/template/html.go +++ b/libgo/go/html/template/html.go @@ -137,7 +137,7 @@ var htmlNospaceNormReplacementTable = []string{ // htmlReplacer returns s with runes replaced according to replacementTable // and when badRunes is true, certain bad runes are allowed through unescaped. func htmlReplacer(s string, replacementTable []string, badRunes bool) string { - written, b := 0, new(bytes.Buffer) + written, b := 0, new(strings.Builder) r, w := rune(0), 0 for i := 0; i < len(s); i += w { // Cannot use 'for range s' because we need to preserve the width @@ -146,6 +146,9 @@ func htmlReplacer(s string, replacementTable []string, badRunes bool) string { r, w = utf8.DecodeRuneInString(s[i:]) if int(r) < len(replacementTable) { if repl := replacementTable[r]; len(repl) != 0 { + if written == 0 { + b.Grow(len(s)) + } b.WriteString(s[written:i]) b.WriteString(repl) written = i + w @@ -154,6 +157,9 @@ func htmlReplacer(s string, replacementTable []string, badRunes bool) string { // No-op. // IE does not allow these ranges in unquoted attrs. } else if 0xfdd0 <= r && r <= 0xfdef || 0xfff0 <= r && r <= 0xffff { + if written == 0 { + b.Grow(len(s)) + } fmt.Fprintf(b, "%s&#x%x;", s[written:i], r) written = i + w } |