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143 lines
2.3 KiB
C
143 lines
2.3 KiB
C
/*
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* _codecs_tw.c: Codecs collection for Taiwan's encodings
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*
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* Written by Hye-Shik Chang <perky@FreeBSD.org>
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*/
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#include "cjkcodecs.h"
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#include "mappings_tw.h"
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/*
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* BIG5 codec
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*/
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ENCODER(big5)
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{
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while (*inpos < inlen) {
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Py_UCS4 c = INCHAR1;
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DBCHAR code;
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if (c < 0x80) {
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REQUIRE_OUTBUF(1);
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**outbuf = (unsigned char)c;
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NEXT(1, 1);
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continue;
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}
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if (c > 0xFFFF)
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return 1;
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REQUIRE_OUTBUF(2);
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if (TRYMAP_ENC(big5, code, c))
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;
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else
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return 1;
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OUTBYTE1(code >> 8);
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OUTBYTE2(code & 0xFF);
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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(big5)
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{
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while (inleft > 0) {
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unsigned char c = INBYTE1;
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Py_UCS4 decoded;
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if (c < 0x80) {
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OUTCHAR(c);
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NEXT_IN(1);
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continue;
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}
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REQUIRE_INBUF(2);
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if (TRYMAP_DEC(big5, decoded, c, INBYTE2)) {
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OUTCHAR(decoded);
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NEXT_IN(2);
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}
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else return 1;
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}
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return 0;
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}
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/*
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* CP950 codec
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*/
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ENCODER(cp950)
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{
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while (*inpos < inlen) {
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Py_UCS4 c = INCHAR1;
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DBCHAR code;
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if (c < 0x80) {
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WRITEBYTE1((unsigned char)c);
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NEXT(1, 1);
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continue;
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}
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if (c > 0xFFFF)
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return 1;
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REQUIRE_OUTBUF(2);
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if (TRYMAP_ENC(cp950ext, code, c))
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;
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else if (TRYMAP_ENC(big5, code, c))
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;
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else
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return 1;
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OUTBYTE1(code >> 8);
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OUTBYTE2(code & 0xFF);
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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(cp950)
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{
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while (inleft > 0) {
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unsigned char c = INBYTE1;
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Py_UCS4 decoded;
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if (c < 0x80) {
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OUTCHAR(c);
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NEXT_IN(1);
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continue;
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}
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REQUIRE_INBUF(2);
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if (TRYMAP_DEC(cp950ext, decoded, c, INBYTE2))
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OUTCHAR(decoded);
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else if (TRYMAP_DEC(big5, decoded, c, INBYTE2))
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OUTCHAR(decoded);
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else
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return 1;
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NEXT_IN(2);
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}
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return 0;
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}
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BEGIN_MAPPINGS_LIST(2)
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MAPPING_ENCDEC(big5)
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MAPPING_ENCDEC(cp950ext)
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END_MAPPINGS_LIST
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BEGIN_CODECS_LIST(2)
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CODEC_STATELESS(big5)
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CODEC_STATELESS(cp950)
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END_CODECS_LIST
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I_AM_A_MODULE_FOR(tw)
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