From 6e2cb00008cbf09e556b00f87603797fcaa47e09 Mon Sep 17 00:00:00 2001 From: Christopher Speller Date: Mon, 16 Apr 2018 05:37:14 -0700 Subject: Depenancy upgrades and movign to dep. (#8630) --- vendor/golang.org/x/text/runes/cond.go | 187 --------------------------------- 1 file changed, 187 deletions(-) delete mode 100644 vendor/golang.org/x/text/runes/cond.go (limited to 'vendor/golang.org/x/text/runes/cond.go') diff --git a/vendor/golang.org/x/text/runes/cond.go b/vendor/golang.org/x/text/runes/cond.go deleted file mode 100644 index df7aa02db..000000000 --- a/vendor/golang.org/x/text/runes/cond.go +++ /dev/null @@ -1,187 +0,0 @@ -// Copyright 2015 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 runes - -import ( - "unicode/utf8" - - "golang.org/x/text/transform" -) - -// Note: below we pass invalid UTF-8 to the tIn and tNotIn transformers as is. -// This is done for various reasons: -// - To retain the semantics of the Nop transformer: if input is passed to a Nop -// one would expect it to be unchanged. -// - It would be very expensive to pass a converted RuneError to a transformer: -// a transformer might need more source bytes after RuneError, meaning that -// the only way to pass it safely is to create a new buffer and manage the -// intermingling of RuneErrors and normal input. -// - Many transformers leave ill-formed UTF-8 as is, so this is not -// inconsistent. Generally ill-formed UTF-8 is only replaced if it is a -// logical consequence of the operation (as for Map) or if it otherwise would -// pose security concerns (as for Remove). -// - An alternative would be to return an error on ill-formed UTF-8, but this -// would be inconsistent with other operations. - -// If returns a transformer that applies tIn to consecutive runes for which -// s.Contains(r) and tNotIn to consecutive runes for which !s.Contains(r). Reset -// is called on tIn and tNotIn at the start of each run. A Nop transformer will -// substitute a nil value passed to tIn or tNotIn. Invalid UTF-8 is translated -// to RuneError to determine which transformer to apply, but is passed as is to -// the respective transformer. -func If(s Set, tIn, tNotIn transform.Transformer) Transformer { - if tIn == nil && tNotIn == nil { - return Transformer{transform.Nop} - } - if tIn == nil { - tIn = transform.Nop - } - if tNotIn == nil { - tNotIn = transform.Nop - } - sIn, ok := tIn.(transform.SpanningTransformer) - if !ok { - sIn = dummySpan{tIn} - } - sNotIn, ok := tNotIn.(transform.SpanningTransformer) - if !ok { - sNotIn = dummySpan{tNotIn} - } - - a := &cond{ - tIn: sIn, - tNotIn: sNotIn, - f: s.Contains, - } - a.Reset() - return Transformer{a} -} - -type dummySpan struct{ transform.Transformer } - -func (d dummySpan) Span(src []byte, atEOF bool) (n int, err error) { - return 0, transform.ErrEndOfSpan -} - -type cond struct { - tIn, tNotIn transform.SpanningTransformer - f func(rune) bool - check func(rune) bool // current check to perform - t transform.SpanningTransformer // current transformer to use -} - -// Reset implements transform.Transformer. -func (t *cond) Reset() { - t.check = t.is - t.t = t.tIn - t.t.Reset() // notIn will be reset on first usage. -} - -func (t *cond) is(r rune) bool { - if t.f(r) { - return true - } - t.check = t.isNot - t.t = t.tNotIn - t.tNotIn.Reset() - return false -} - -func (t *cond) isNot(r rune) bool { - if !t.f(r) { - return true - } - t.check = t.is - t.t = t.tIn - t.tIn.Reset() - return false -} - -// This implementation of Span doesn't help all too much, but it needs to be -// there to satisfy this package's Transformer interface. -// TODO: there are certainly room for improvements, though. For example, if -// t.t == transform.Nop (which will a common occurrence) it will save a bundle -// to special-case that loop. -func (t *cond) Span(src []byte, atEOF bool) (n int, err error) { - p := 0 - for n < len(src) && err == nil { - // Don't process too much at a time as the Spanner that will be - // called on this block may terminate early. - const maxChunk = 4096 - max := len(src) - if v := n + maxChunk; v < max { - max = v - } - atEnd := false - size := 0 - current := t.t - for ; p < max; p += size { - r := rune(src[p]) - if r < utf8.RuneSelf { - size = 1 - } else if r, size = utf8.DecodeRune(src[p:]); size == 1 { - if !atEOF && !utf8.FullRune(src[p:]) { - err = transform.ErrShortSrc - break - } - } - if !t.check(r) { - // The next rune will be the start of a new run. - atEnd = true - break - } - } - n2, err2 := current.Span(src[n:p], atEnd || (atEOF && p == len(src))) - n += n2 - if err2 != nil { - return n, err2 - } - // At this point either err != nil or t.check will pass for the rune at p. - p = n + size - } - return n, err -} - -func (t *cond) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) { - p := 0 - for nSrc < len(src) && err == nil { - // Don't process too much at a time, as the work might be wasted if the - // destination buffer isn't large enough to hold the result or a - // transform returns an error early. - const maxChunk = 4096 - max := len(src) - if n := nSrc + maxChunk; n < len(src) { - max = n - } - atEnd := false - size := 0 - current := t.t - for ; p < max; p += size { - r := rune(src[p]) - if r < utf8.RuneSelf { - size = 1 - } else if r, size = utf8.DecodeRune(src[p:]); size == 1 { - if !atEOF && !utf8.FullRune(src[p:]) { - err = transform.ErrShortSrc - break - } - } - if !t.check(r) { - // The next rune will be the start of a new run. - atEnd = true - break - } - } - nDst2, nSrc2, err2 := current.Transform(dst[nDst:], src[nSrc:p], atEnd || (atEOF && p == len(src))) - nDst += nDst2 - nSrc += nSrc2 - if err2 != nil { - return nDst, nSrc, err2 - } - // At this point either err != nil or t.check will pass for the rune at p. - p = nSrc + size - } - return nDst, nSrc, err -} -- cgit v1.2.3-1-g7c22