Add emoji support

This uses the Emoji map from https://github.com/kyokomi/emoji -- but with a custom replacement implementation.

The built-in are fine for most use cases, but in Hugo we do care about pure speed.

The benchmarks below are skewed in Hugo's direction as the source and result is a byte slice,
Kyokomi's implementation works best with strings.

Curious: The easy-to-use `strings.Replacer` is also plenty fast.

```
BenchmarkEmojiKyokomiFprint-4  	   20000	     86038 ns/op	   33960 B/op	     117 allocs/op
BenchmarkEmojiKyokomiSprint-4  	   20000	     83252 ns/op	   38232 B/op	     122 allocs/op
BenchmarkEmojiStringsReplacer-4	  100000	     21092 ns/op	   17248 B/op	      25 allocs/op
BenchmarkHugoEmoji-4           	  500000	      5728 ns/op	     624 B/op	      13 allocs/op
```

Fixes #1891
This commit is contained in:
Bjørn Erik Pedersen
2016-02-25 00:52:11 +01:00
committed by Cameron Moore
parent 5926c6c8d5
commit cafb784799
7 changed files with 256 additions and 3 deletions

View File

@@ -1,4 +1,4 @@
// Copyright 2015 The Hugo Authors. All rights reserved.
// Copyright 2016 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@@ -301,6 +301,7 @@ func LoadDefaultSettings() {
viper.SetDefault("SectionPagesMenu", "")
viper.SetDefault("DisablePathToLower", false)
viper.SetDefault("HasCJKLanguage", false)
viper.SetDefault("EnableEmoji", false)
}
// InitializeConfig initializes a config file with sensible default configuration flags.