Thanos did someting

[bytom/vapor.git] / vendor / golang.org / x / text / secure / precis / nickname.go

diff --git a/vendor/golang.org/x/text/secure/precis/nickname.go b/vendor/golang.org/x/text/secure/precis/nickname.go
deleted file mode 100644 (file)
index cd54b9e..0000000
--- a/vendor/golang.org/x/text/secure/precis/nickname.go
+++ /dev/null
@@ -1,70 +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 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
-}