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78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
/*
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* _gbk.c: the GBK codec
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*
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* Written by Hye-Shik Chang <perky@FreeBSD.org>
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* $CJKCodecs: _gbk.c,v 1.2 2003/12/31 05:46:55 perky Exp $
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*/
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#include "codeccommon.h"
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#include "tweak_gbk.h"
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ENCMAP(gbcommon)
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DECMAP(gb2312)
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DECMAP(gbkext)
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ENCODER(gbk)
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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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RESERVE_OUTBUF(2)
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GBK_PREENCODE(c, code)
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else TRYMAP_ENC(gbcommon, code, c);
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else return 1;
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OUT1((code >> 8) | 0x80)
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if (code & 0x8000)
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OUT2((code & 0xFF)) /* MSB set: GBK */
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else
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OUT2((code & 0xFF) | 0x80) /* MSB unset: GB2312 */
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NEXT(1, 2)
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}
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return 0;
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}
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DECODER(gbk)
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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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RESERVE_INBUF(2)
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GBK_PREDECODE(c, IN2, **outbuf)
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else TRYMAP_DEC(gb2312, **outbuf, c ^ 0x80, IN2 ^ 0x80);
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else TRYMAP_DEC(gbkext, **outbuf, c, IN2);
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else return 2;
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NEXT(2, 1)
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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(gbk)
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MAPOPEN(zh_CN)
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IMPORTMAP_DEC(gb2312)
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IMPORTMAP_DEC(gbkext)
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IMPORTMAP_ENC(gbcommon)
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MAPCLOSE()
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END_CODEC_REGISTRY(gbk)
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