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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"
#include <stddef.h>
#include <assert.h>
/*
* BIG5 codec
*/
ENCODER(big5)
{
while (inleft > 0) {
ucs4_t c = **inbuf;
DBCHAR code;
if (c < 0x80) {
REQUIRE_OUTBUF(1)
**outbuf = (unsigned char)c;
NEXT(1, 1)
continue;
}
UCS4INVALID(c)
REQUIRE_OUTBUF(2)
TRYMAP_ENC(big5, code, c);
else return 1;
OUT1(code >> 8)
OUT2(code & 0xFF)
NEXT(1, 2)
}
return 0;
}
DECODER(big5)
{
while (inleft > 0) {
unsigned char c = IN1;
REQUIRE_OUTBUF(1)
if (c < 0x80) {
OUT1(c)
NEXT(1, 1)
continue;
}
REQUIRE_INBUF(2)
TRYMAP_DEC(big5, **outbuf, c, IN2) {
NEXT(2, 1)
}
else return 2;
}
return 0;
}
/*
* CP950 codec
*/
ENCODER(cp950)
{
while (inleft > 0) {
ucs4_t c = IN1;
DBCHAR code;
if (c < 0x80) {
WRITE1((unsigned char)c)
NEXT(1, 1)
continue;
}
UCS4INVALID(c)
REQUIRE_OUTBUF(2)
TRYMAP_ENC(cp950ext, code, c);
else TRYMAP_ENC(big5, code, c);
else return 1;
OUT1(code >> 8)
OUT2(code & 0xFF)
NEXT(1, 2)
}
return 0;
}
DECODER(cp950)
{
while (inleft > 0) {
unsigned char c = IN1;
REQUIRE_OUTBUF(1)
if (c < 0x80) {
OUT1(c)
NEXT(1, 1)
continue;
}
REQUIRE_INBUF(2)
TRYMAP_DEC(cp950ext, **outbuf, c, IN2);
else TRYMAP_DEC(big5, **outbuf, c, IN2);
else return 2;
NEXT(2, 1)
}
return 0;
}
BEGIN_MAPPINGS_LIST
MAPPING_ENCDEC(big5)
MAPPING_ENCDEC(cp950ext)
END_MAPPINGS_LIST(tw)
BEGIN_CODECS_LIST
CODEC_STATELESS(big5)
CODEC_STATELESS(cp950)
END_CODECS_LIST(tw)
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