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Diffstat (limited to 'vendor/golang.org/x/text/encoding/korean/euckr.go')
-rw-r--r--vendor/golang.org/x/text/encoding/korean/euckr.go177
1 files changed, 177 insertions, 0 deletions
diff --git a/vendor/golang.org/x/text/encoding/korean/euckr.go b/vendor/golang.org/x/text/encoding/korean/euckr.go
new file mode 100644
index 0000000..034337f
--- /dev/null
+++ b/vendor/golang.org/x/text/encoding/korean/euckr.go
@@ -0,0 +1,177 @@
+// 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 korean
+
+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"
+)
+
+// All is a list of all defined encodings in this package.
+var All = []encoding.Encoding{EUCKR}
+
+// EUCKR is the EUC-KR encoding, also known as Code Page 949.
+var EUCKR encoding.Encoding = &eucKR
+
+var eucKR = internal.Encoding{
+ &internal.SimpleEncoding{eucKRDecoder{}, eucKREncoder{}},
+ "EUC-KR",
+ identifier.EUCKR,
+}
+
+type eucKRDecoder struct{ transform.NopResetter }
+
+func (eucKRDecoder) 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 0x81 <= c0 && c0 < 0xff:
+ if nSrc+1 >= len(src) {
+ if !atEOF {
+ err = transform.ErrShortSrc
+ break loop
+ }
+ r, size = utf8.RuneError, 1
+ break
+ }
+ c1 := src[nSrc+1]
+ size = 2
+ if c0 < 0xc7 {
+ r = 178 * rune(c0-0x81)
+ switch {
+ case 0x41 <= c1 && c1 < 0x5b:
+ r += rune(c1) - (0x41 - 0*26)
+ case 0x61 <= c1 && c1 < 0x7b:
+ r += rune(c1) - (0x61 - 1*26)
+ case 0x81 <= c1 && c1 < 0xff:
+ r += rune(c1) - (0x81 - 2*26)
+ default:
+ goto decError
+ }
+ } else if 0xa1 <= c1 && c1 < 0xff {
+ r = 178*(0xc7-0x81) + rune(c0-0xc7)*94 + rune(c1-0xa1)
+ } else {
+ goto decError
+ }
+ if int(r) < len(decode) {
+ r = rune(decode[r])
+ if r != 0 {
+ break
+ }
+ }
+ decError:
+ r = utf8.RuneError
+ if c1 < utf8.RuneSelf {
+ size = 1
+ }
+
+ default:
+ r, size = utf8.RuneError, 1
+ break
+ }
+
+ if nDst+utf8.RuneLen(r) > len(dst) {
+ err = transform.ErrShortDst
+ break
+ }
+ nDst += utf8.EncodeRune(dst[nDst:], r)
+ }
+ return nDst, nSrc, err
+}
+
+type eucKREncoder struct{ transform.NopResetter }
+
+func (eucKREncoder) 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
+
+ if nDst >= len(dst) {
+ err = transform.ErrShortDst
+ break
+ }
+ dst[nDst] = uint8(r)
+ nDst++
+ continue
+
+ } 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 write2
+ }
+ case encode1Low <= r && r < encode1High:
+ if r = rune(encode1[r-encode1Low]); r != 0 {
+ goto write2
+ }
+ case encode2Low <= r && r < encode2High:
+ if r = rune(encode2[r-encode2Low]); r != 0 {
+ goto write2
+ }
+ case encode3Low <= r && r < encode3High:
+ if r = rune(encode3[r-encode3Low]); r != 0 {
+ goto write2
+ }
+ case encode4Low <= r && r < encode4High:
+ if r = rune(encode4[r-encode4Low]); r != 0 {
+ goto write2
+ }
+ case encode5Low <= r && r < encode5High:
+ if r = rune(encode5[r-encode5Low]); r != 0 {
+ goto write2
+ }
+ case encode6Low <= r && r < encode6High:
+ if r = rune(encode6[r-encode6Low]); r != 0 {
+ goto write2
+ }
+ }
+ err = internal.ErrASCIIReplacement
+ break
+ }
+
+ write2:
+ if nDst+2 > len(dst) {
+ err = transform.ErrShortDst
+ break
+ }
+ dst[nDst+0] = uint8(r >> 8)
+ dst[nDst+1] = uint8(r)
+ nDst += 2
+ continue
+ }
+ return nDst, nSrc, err
+}
+
+func init() {
+ // Check that the hard-coded encode switch covers all tables.
+ if numEncodeTables != 7 {
+ panic("bad numEncodeTables")
+ }
+}