2d9a50b97f
The html package uses some specific code to escape special characters. Actually, the strings.Replacer can be used instead, and is much more efficient. The converse operation is more complex but can still be slightly optimized. Credits to Ken Bloom (kabloom@google.com), who first submitted a similar patch at https://codereview.appspot.com/141930043 Added benchmarks and slightly optimized UnescapeString. benchmark old ns/op new ns/op delta BenchmarkEscape-4 118713 19825 -83.30% BenchmarkEscapeNone-4 87653 3784 -95.68% BenchmarkUnescape-4 24888 23417 -5.91% BenchmarkUnescapeNone-4 14423 157 -98.91% benchmark old allocs new allocs delta BenchmarkEscape-4 9 2 -77.78% BenchmarkEscapeNone-4 0 0 +0.00% BenchmarkUnescape-4 2 2 +0.00% BenchmarkUnescapeNone-4 0 0 +0.00% benchmark old bytes new bytes delta BenchmarkEscape-4 24800 12288 -50.45% BenchmarkEscapeNone-4 0 0 +0.00% BenchmarkUnescape-4 10240 10240 +0.00% BenchmarkUnescapeNone-4 0 0 +0.00% Fixes #8697 Change-Id: I208261ed7cbe9b3dee6317851f8c0cf15528bce4 Reviewed-on: https://go-review.googlesource.com/9808 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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