mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-21 20:46:30 -05:00
40 lines
1.5 KiB
Go
40 lines
1.5 KiB
Go
|
// Copyright 2022 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.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
// Package blackfriday holds some copmpability functions for the old Blackfriday v1 Markdown engine.
|
||
|
|
package blackfriday
|
||
|
|
|
||
|
|
import "unicode"
|
||
|
|
|
||
|
|
// SanitizedAnchorName is how Blackfriday sanitizes anchor names.
|
||
|
|
// Implementation borrowed from https://github.com/russross/blackfriday/blob/a477dd1646916742841ed20379f941cfa6c5bb6f/block.go#L1464
|
||
|
|
// Note that Hugo removed its Blackfriday support in v0.100.0, but you can still use this strategy for
|
||
|
|
// auto ID generation.
|
||
|
|
func SanitizedAnchorName(text string) string {
|
||
|
|
var anchorName []rune
|
||
|
|
futureDash := false
|
||
|
|
for _, r := range text {
|
||
|
|
switch {
|
||
|
|
case unicode.IsLetter(r) || unicode.IsNumber(r):
|
||
|
|
if futureDash && len(anchorName) > 0 {
|
||
|
|
anchorName = append(anchorName, '-')
|
||
|
|
}
|
||
|
|
futureDash = false
|
||
|
|
anchorName = append(anchorName, unicode.ToLower(r))
|
||
|
|
default:
|
||
|
|
futureDash = true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return string(anchorName)
|
||
|
|
}
|