Source file src/cmd/vendor/golang.org/x/text/cases/fold.go

     1  // Copyright 2016 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package cases
     6  
     7  import "golang.org/x/text/transform"
     8  
     9  type caseFolder struct{ transform.NopResetter }
    10  
    11  // caseFolder implements the Transformer interface for doing case folding.
    12  func (t *caseFolder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
    13  	c := context{dst: dst, src: src, atEOF: atEOF}
    14  	for c.next() {
    15  		foldFull(&c)
    16  		c.checkpoint()
    17  	}
    18  	return c.ret()
    19  }
    20  
    21  func (t *caseFolder) Span(src []byte, atEOF bool) (n int, err error) {
    22  	c := context{src: src, atEOF: atEOF}
    23  	for c.next() && isFoldFull(&c) {
    24  		c.checkpoint()
    25  	}
    26  	return c.retSpan()
    27  }
    28  
    29  func makeFold(o options) transform.SpanningTransformer {
    30  	// TODO: Special case folding, through option Language, Special/Turkic, or
    31  	// both.
    32  	// TODO: Implement Compact options.
    33  	return &caseFolder{}
    34  }
    35  

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