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