diff options
Diffstat (limited to 'modules/mahonia/euc-kr.go')
-rw-r--r-- | modules/mahonia/euc-kr.go | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/modules/mahonia/euc-kr.go b/modules/mahonia/euc-kr.go new file mode 100644 index 00000000..10147c4e --- /dev/null +++ b/modules/mahonia/euc-kr.go @@ -0,0 +1,89 @@ +package mahonia + +// Converters for the EUC-KR encoding. + +import ( + "unicode/utf8" +) + +func init() { + RegisterCharset(&Charset{ + Name: "EUC-KR", + Aliases: []string{ + "ibm-1363", + "KS_C_5601-1987", + "KS_C_5601-1989", + "KSC_5601", + "Korean", + "iso-ir-149", + "cp1363", + "5601", + "ksc", + "windows-949", + "ibm-970", + "cp970", + "970", + "cp949", + }, + NewDecoder: func() Decoder { + return decodeEucKr + }, + NewEncoder: func() Encoder { + eucKrOnce.Do(reverseEucKrTable) + return encodeEucKr + }, + }) +} + +func decodeEucKr(p []byte) (c rune, size int, status Status) { + if len(p) == 0 { + return 0, 0, NO_ROOM + } + + b := p[0] + if b < 0x80 { + return rune(b), 1, SUCCESS + } + + if len(p) < 2 { + return 0, 0, NO_ROOM + } + + euc := int(b)<<8 + int(p[1]) + c = rune(eucKrToUnicode[euc]) + + if c == 0 { + return utf8.RuneError, 2, INVALID_CHAR + } + return c, 2, SUCCESS +} + +func encodeEucKr(p []byte, c rune) (size int, status Status) { + if len(p) == 0 { + return 0, NO_ROOM + } + + if c < 0x80 { + p[0] = byte(c) + return 1, SUCCESS + } + + if len(p) < 2 { + return 0, NO_ROOM + } + + if c > 0xffff { + p[0] = '?' + return 1, INVALID_CHAR + } + + euc := unicodeToEucKr[c] + if euc == 0 { + p[0] = '?' + return 1, INVALID_CHAR + } + + p[0] = byte(euc >> 8) + p[1] = byte(euc) + return 2, SUCCESS +} |