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author | Corey Hulen <corey@hulen.com> | 2017-03-24 23:31:34 -0700 |
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committer | enahum <nahumhbl@gmail.com> | 2017-03-25 03:31:34 -0300 |
commit | 54d3d47daf9190275bbdaf8703b84969a4593451 (patch) | |
tree | 05899b296d0186c1a0da8a540bc486e34ad8eec9 /vendor/golang.org/x/text/secure/precis/nickname.go | |
parent | 7460302dec7796e01c98264e84bece8169cb6ed9 (diff) | |
download | chat-54d3d47daf9190275bbdaf8703b84969a4593451.tar.gz chat-54d3d47daf9190275bbdaf8703b84969a4593451.tar.bz2 chat-54d3d47daf9190275bbdaf8703b84969a4593451.zip |
PLT-6076 Adding viper libs for config file changes (#5871)
* Adding viper libs for config file changes
* Removing the old fsnotify lib
* updating some missing libs
Diffstat (limited to 'vendor/golang.org/x/text/secure/precis/nickname.go')
-rw-r--r-- | vendor/golang.org/x/text/secure/precis/nickname.go | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/vendor/golang.org/x/text/secure/precis/nickname.go b/vendor/golang.org/x/text/secure/precis/nickname.go new file mode 100644 index 000000000..cd54b9e69 --- /dev/null +++ b/vendor/golang.org/x/text/secure/precis/nickname.go @@ -0,0 +1,70 @@ +// 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 precis + +import ( + "unicode" + "unicode/utf8" + + "golang.org/x/text/transform" +) + +type nickAdditionalMapping struct { + // TODO: This transformer needs to be stateless somehow… + notStart bool + prevSpace bool +} + +func (t *nickAdditionalMapping) Reset() { + t.prevSpace = false + t.notStart = false +} + +func (t *nickAdditionalMapping) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) { + // RFC 7700 §2.1. Rules + // + // 2. Additional Mapping Rule: The additional mapping rule consists of + // the following sub-rules. + // + // 1. Any instances of non-ASCII space MUST be mapped to ASCII + // space (U+0020); a non-ASCII space is any Unicode code point + // having a general category of "Zs", naturally with the + // exception of U+0020. + // + // 2. Any instances of the ASCII space character at the beginning + // or end of a nickname MUST be removed (e.g., "stpeter " is + // mapped to "stpeter"). + // + // 3. Interior sequences of more than one ASCII space character + // MUST be mapped to a single ASCII space character (e.g., + // "St Peter" is mapped to "St Peter"). + + for nSrc < len(src) { + r, size := utf8.DecodeRune(src[nSrc:]) + if size == 0 { // Incomplete UTF-8 encoding + if !atEOF { + return nDst, nSrc, transform.ErrShortSrc + } + size = 1 + } + if unicode.Is(unicode.Zs, r) { + t.prevSpace = true + } else { + if t.prevSpace && t.notStart { + dst[nDst] = ' ' + nDst += 1 + } + if size != copy(dst[nDst:], src[nSrc:nSrc+size]) { + nDst += size + return nDst, nSrc, transform.ErrShortDst + } + nDst += size + t.prevSpace = false + t.notStart = true + } + nSrc += size + } + return nDst, nSrc, nil +} |