commit 455df1075205d5fcda184410575e535e605c8f20
parent 83759953784367ef3ec16d494890167a2380353b
Author: Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
Date: Thu, 25 Feb 2016 21:31:22 +0100
Optimize replaceShortcodeTokens
We can of course skip reading the entire byte slice again and again.
This was a slip in the original implementation; functionally the same,
but is slightly faster, esp. for larger data sets with many shortcodes:
```
benchmark old ns/op new ns/op delta
BenchmarkReplaceShortcodeTokens-4 15505 14753 -4.85%
benchmark old allocs new allocs delta
BenchmarkReplaceShortcodeTokens-4 1 1 +0.00%
benchmark old bytes new bytes delta
BenchmarkReplaceShortcodeTokens-4 3072 3072 +0.00%
```
Diffstat:
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hugolib/shortcode.go b/hugolib/shortcode.go
@@ -506,7 +506,7 @@ func replaceShortcodeTokens(source []byte, prefix string, replacements map[strin
// This and other cool slice tricks: https://github.com/golang/go/wiki/SliceTricks
source = append(source[:j], append(newVal, source[end:]...)...)
-
+ start = j
k = bytes.Index(source[start:], pre)
}