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// 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{}
}
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