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/*
* _euc_jp.c: the EUC-JP codec
*
* Written by Hye-Shik Chang <perky@FreeBSD.org>
* $CJKCodecs: _euc_jp.c,v 1.5 2003/12/31 05:46:55 perky Exp $
*/
#include "codeccommon.h"
ENCMAP(jisxcommon)
DECMAP(jisx0208)
DECMAP(jisx0212)
ENCODER(euc_jp)
{
while (inleft > 0) {
Py_UNICODE c = IN1;
DBCHAR code;
if (c < 0x80) {
WRITE1(c)
NEXT(1, 1)
continue;
}
UCS4INVALID(c)
TRYMAP_ENC(jisxcommon, code, c);
else if (c >= 0xff61 && c <= 0xff9f) {
/* JIS X 0201 half-width katakana */
WRITE2(0x8e, c - 0xfec0)
NEXT(1, 2)
continue;
}
#ifndef STRICT_BUILD
else if (c == 0xff3c) /* FULL-WIDTH REVERSE SOLIDUS */
code = 0x2140;
else if (c == 0xa5) { /* YEN SIGN */
WRITE1(0x5c);
NEXT(1, 1)
continue;
} else if (c == 0x203e) { /* OVERLINE */
WRITE1(0x7e);
NEXT(1, 1)
continue;
}
#endif
else
return 1;
if (code & 0x8000) {
/* JIS X 0212 */
WRITE3(0x8f, code >> 8, (code & 0xFF) | 0x80)
NEXT(1, 3)
} else {
/* JIS X 0208 */
WRITE2((code >> 8) | 0x80, (code & 0xFF) | 0x80)
NEXT(1, 2)
}
}
return 0;
}
DECODER(euc_jp)
{
while (inleft > 0) {
unsigned char c = IN1;
RESERVE_OUTBUF(1)
if (c < 0x80) {
OUT1(c)
NEXT(1, 1)
continue;
}
if (c == 0x8e) {
/* JIS X 0201 half-width katakana */
unsigned char c2;
RESERVE_INBUF(2)
c2 = IN2;
if (c2 >= 0xa1 && c2 <= 0xdf) {
OUT1(0xfec0 + c2)
NEXT(2, 1)
} else
return 2;
} else if (c == 0x8f) {
unsigned char c2, c3;
RESERVE_INBUF(3)
c2 = IN2;
c3 = IN3;
/* JIS X 0212 */
TRYMAP_DEC(jisx0212, **outbuf, c2 ^ 0x80, c3 ^ 0x80) {
NEXT(3, 1)
} else
return 3;
} else {
unsigned char c2;
RESERVE_INBUF(2)
c2 = IN2;
/* JIS X 0208 */
#ifndef STRICT_BUILD
if (c == 0xa1 && c2 == 0xc0) /* FULL-WIDTH REVERSE SOLIDUS */
**outbuf = 0xff3c;
else
#endif
TRYMAP_DEC(jisx0208, **outbuf, c ^ 0x80, c2 ^ 0x80) ;
else return 2;
NEXT(2, 1)
}
}
return 0;
}
#include "codecentry.h"
BEGIN_CODEC_REGISTRY(euc_jp)
MAPOPEN(ja_JP)
IMPORTMAP_DEC(jisx0208)
IMPORTMAP_DEC(jisx0212)
IMPORTMAP_ENC(jisxcommon)
MAPCLOSE()
END_CODEC_REGISTRY(euc_jp)
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