diff options
Diffstat (limited to 'vendor/golang.org/x/text/encoding/japanese/eucjp.go')
-rw-r--r-- | vendor/golang.org/x/text/encoding/japanese/eucjp.go | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/vendor/golang.org/x/text/encoding/japanese/eucjp.go b/vendor/golang.org/x/text/encoding/japanese/eucjp.go deleted file mode 100644 index 79313fa58..000000000 --- a/vendor/golang.org/x/text/encoding/japanese/eucjp.go +++ /dev/null @@ -1,225 +0,0 @@ -// Copyright 2013 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 japanese - -import ( - "unicode/utf8" - - "golang.org/x/text/encoding" - "golang.org/x/text/encoding/internal" - "golang.org/x/text/encoding/internal/identifier" - "golang.org/x/text/transform" -) - -// EUCJP is the EUC-JP encoding. -var EUCJP encoding.Encoding = &eucJP - -var eucJP = internal.Encoding{ - &internal.SimpleEncoding{eucJPDecoder{}, eucJPEncoder{}}, - "EUC-JP", - identifier.EUCPkdFmtJapanese, -} - -type eucJPDecoder struct{ transform.NopResetter } - -// See https://encoding.spec.whatwg.org/#euc-jp-decoder. -func (eucJPDecoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) { - r, size := rune(0), 0 -loop: - for ; nSrc < len(src); nSrc += size { - switch c0 := src[nSrc]; { - case c0 < utf8.RuneSelf: - r, size = rune(c0), 1 - - case c0 == 0x8e: - if nSrc+1 >= len(src) { - if !atEOF { - err = transform.ErrShortSrc - break loop - } - r, size = utf8.RuneError, 1 - break - } - c1 := src[nSrc+1] - switch { - case c1 < 0xa1: - r, size = utf8.RuneError, 1 - case c1 > 0xdf: - r, size = utf8.RuneError, 2 - if c1 == 0xff { - size = 1 - } - default: - r, size = rune(c1)+(0xff61-0xa1), 2 - } - case c0 == 0x8f: - if nSrc+2 >= len(src) { - if !atEOF { - err = transform.ErrShortSrc - break loop - } - r, size = utf8.RuneError, 1 - if p := nSrc + 1; p < len(src) && 0xa1 <= src[p] && src[p] < 0xfe { - size = 2 - } - break - } - c1 := src[nSrc+1] - if c1 < 0xa1 || 0xfe < c1 { - r, size = utf8.RuneError, 1 - break - } - c2 := src[nSrc+2] - if c2 < 0xa1 || 0xfe < c2 { - r, size = utf8.RuneError, 2 - break - } - r, size = utf8.RuneError, 3 - if i := int(c1-0xa1)*94 + int(c2-0xa1); i < len(jis0212Decode) { - r = rune(jis0212Decode[i]) - if r == 0 { - r = utf8.RuneError - } - } - - case 0xa1 <= c0 && c0 <= 0xfe: - if nSrc+1 >= len(src) { - if !atEOF { - err = transform.ErrShortSrc - break loop - } - r, size = utf8.RuneError, 1 - break - } - c1 := src[nSrc+1] - if c1 < 0xa1 || 0xfe < c1 { - r, size = utf8.RuneError, 1 - break - } - r, size = utf8.RuneError, 2 - if i := int(c0-0xa1)*94 + int(c1-0xa1); i < len(jis0208Decode) { - r = rune(jis0208Decode[i]) - if r == 0 { - r = utf8.RuneError - } - } - - default: - r, size = utf8.RuneError, 1 - } - - if nDst+utf8.RuneLen(r) > len(dst) { - err = transform.ErrShortDst - break loop - } - nDst += utf8.EncodeRune(dst[nDst:], r) - } - return nDst, nSrc, err -} - -type eucJPEncoder struct{ transform.NopResetter } - -func (eucJPEncoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) { - r, size := rune(0), 0 - for ; nSrc < len(src); nSrc += size { - r = rune(src[nSrc]) - - // Decode a 1-byte rune. - if r < utf8.RuneSelf { - size = 1 - - } else { - // Decode a multi-byte rune. - r, size = utf8.DecodeRune(src[nSrc:]) - if size == 1 { - // All valid runes of size 1 (those below utf8.RuneSelf) were - // handled above. We have invalid UTF-8 or we haven't seen the - // full character yet. - if !atEOF && !utf8.FullRune(src[nSrc:]) { - err = transform.ErrShortSrc - break - } - } - - // func init checks that the switch covers all tables. - switch { - case encode0Low <= r && r < encode0High: - if r = rune(encode0[r-encode0Low]); r != 0 { - goto write2or3 - } - case encode1Low <= r && r < encode1High: - if r = rune(encode1[r-encode1Low]); r != 0 { - goto write2or3 - } - case encode2Low <= r && r < encode2High: - if r = rune(encode2[r-encode2Low]); r != 0 { - goto write2or3 - } - case encode3Low <= r && r < encode3High: - if r = rune(encode3[r-encode3Low]); r != 0 { - goto write2or3 - } - case encode4Low <= r && r < encode4High: - if r = rune(encode4[r-encode4Low]); r != 0 { - goto write2or3 - } - case encode5Low <= r && r < encode5High: - if 0xff61 <= r && r < 0xffa0 { - goto write2 - } - if r = rune(encode5[r-encode5Low]); r != 0 { - goto write2or3 - } - } - err = internal.ErrASCIIReplacement - break - } - - if nDst >= len(dst) { - err = transform.ErrShortDst - break - } - dst[nDst] = uint8(r) - nDst++ - continue - - write2or3: - if r>>tableShift == jis0208 { - if nDst+2 > len(dst) { - err = transform.ErrShortDst - break - } - } else { - if nDst+3 > len(dst) { - err = transform.ErrShortDst - break - } - dst[nDst] = 0x8f - nDst++ - } - dst[nDst+0] = 0xa1 + uint8(r>>codeShift)&codeMask - dst[nDst+1] = 0xa1 + uint8(r)&codeMask - nDst += 2 - continue - - write2: - if nDst+2 > len(dst) { - err = transform.ErrShortDst - break - } - dst[nDst+0] = 0x8e - dst[nDst+1] = uint8(r - (0xff61 - 0xa1)) - nDst += 2 - continue - } - return nDst, nSrc, err -} - -func init() { - // Check that the hard-coded encode switch covers all tables. - if numEncodeTables != 6 { - panic("bad numEncodeTables") - } -} |