mirror of
https://github.com/restic/restic.git
synced 2024-08-21 20:03:23 +02:00
35 lines
935 B
Go
35 lines
935 B
Go
|
// Copyright 2016 The Go Authors. All rights reserved.
|
||
|
// Use of this source code is governed by a BSD-style
|
||
|
// license that can be found in the LICENSE file.
|
||
|
|
||
|
package cases
|
||
|
|
||
|
import "golang.org/x/text/transform"
|
||
|
|
||
|
type caseFolder struct{ transform.NopResetter }
|
||
|
|
||
|
// caseFolder implements the Transformer interface for doing case folding.
|
||
|
func (t *caseFolder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
|
||
|
c := context{dst: dst, src: src, atEOF: atEOF}
|
||
|
for c.next() {
|
||
|
foldFull(&c)
|
||
|
c.checkpoint()
|
||
|
}
|
||
|
return c.ret()
|
||
|
}
|
||
|
|
||
|
func (t *caseFolder) Span(src []byte, atEOF bool) (n int, err error) {
|
||
|
c := context{src: src, atEOF: atEOF}
|
||
|
for c.next() && isFoldFull(&c) {
|
||
|
c.checkpoint()
|
||
|
}
|
||
|
return c.retSpan()
|
||
|
}
|
||
|
|
||
|
func makeFold(o options) transform.SpanningTransformer {
|
||
|
// TODO: Special case folding, through option Language, Special/Turkic, or
|
||
|
// both.
|
||
|
// TODO: Implement Compact options.
|
||
|
return &caseFolder{}
|
||
|
}
|