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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 (
"sync"
"unicode"
"golang.org/x/text/runes"
"golang.org/x/text/transform"
"golang.org/x/text/unicode/norm"
)
var accentTransformerPool = &sync.Pool{
New: func() interface{} {
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
}
// Chunk splits s into strings of size.
func Chunk(s string, size int) []string {
if size >= len(s) {
return []string{s}
}
var chunks []string
chunk := make([]rune, size)
l := 0
for _, r := range s {
chunk[l] = r
l++
if l == size {
chunks = append(chunks, string(chunk))
l = 0
}
}
if l > 0 {
chunks = append(chunks, string(chunk[:l]))
}
return chunks
}
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