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// Copyright 2019 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 text
import (
"strings"
"sync"
"unicode"
"golang.org/x/text/runes"
"golang.org/x/text/transform"
"golang.org/x/text/unicode/norm"
)
var accentTransformerPool = &sync.Pool{
New: func() any {
return transform.Chain(norm.NFD, runes.Remove(runes.In(unicode.Mn)), norm.NFC)
},
}
// RemoveAccents removes all accents from b.
func RemoveAccents(b []byte) []byte {
t := accentTransformerPool.Get().(transform.Transformer)
b, _, _ = transform.Bytes(t, b)
t.Reset()
accentTransformerPool.Put(t)
return b
}
// RemoveAccentsString removes all accents from s.
func RemoveAccentsString(s string) string {
t := accentTransformerPool.Get().(transform.Transformer)
s, _, _ = transform.String(t, s)
t.Reset()
accentTransformerPool.Put(t)
return s
}
// Chomp removes trailing newline characters from s.
func Chomp(s string) string {
return strings.TrimRightFunc(s, func(r rune) bool {
return r == '\n' || r == '\r'
})
}
// Puts adds a trailing \n none found.
func Puts(s string) string {
if s == "" || s[len(s)-1] == '\n' {
return s
}
return s + "\n"
}
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