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