132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
/*
|
|
* _iso2022_kr.c: the ISO-2022-KR codec (RFC1557)
|
|
*
|
|
* Written by Hye-Shik Chang <perky@FreeBSD.org>
|
|
* $CJKCodecs: _iso2022_kr.c,v 1.3 2003/12/31 05:46:55 perky Exp $
|
|
*/
|
|
|
|
#define ISO2022_DESIGNATIONS \
|
|
CHARSET_ASCII, CHARSET_KSX1001
|
|
|
|
#include "codeccommon.h"
|
|
#include "iso2022common.h"
|
|
|
|
ENCMAP(cp949)
|
|
DECMAP(ksx1001)
|
|
|
|
#define HAVE_ENCODER_INIT
|
|
ENCODER_INIT(iso2022_kr)
|
|
{
|
|
STATE_CLEARFLAGS(state)
|
|
STATE_SETG0(state, CHARSET_ASCII)
|
|
STATE_SETG1(state, CHARSET_ASCII)
|
|
return 0;
|
|
}
|
|
|
|
#define HAVE_ENCODER_RESET
|
|
ENCODER_RESET(iso2022_kr)
|
|
{
|
|
if (STATE_GETFLAG(state, F_SHIFTED)) {
|
|
RESERVE_OUTBUF(1)
|
|
OUT1(SI)
|
|
NEXT_OUT(1)
|
|
STATE_CLEARFLAG(state, F_SHIFTED)
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ENCODER(iso2022_kr)
|
|
{
|
|
while (inleft > 0) {
|
|
Py_UNICODE c = **inbuf;
|
|
DBCHAR code;
|
|
|
|
if (c < 0x80) {
|
|
if (STATE_GETFLAG(state, F_SHIFTED)) {
|
|
WRITE2(SI, (unsigned char)c)
|
|
STATE_CLEARFLAG(state, F_SHIFTED)
|
|
NEXT(1, 2)
|
|
} else {
|
|
WRITE1((unsigned char)c)
|
|
NEXT(1, 1)
|
|
}
|
|
if (c == '\n')
|
|
STATE_CLEARFLAG(state, F_SHIFTED)
|
|
} else UCS4INVALID(c)
|
|
else {
|
|
if (STATE_GETG1(state) != CHARSET_KSX1001) {
|
|
WRITE4(ESC, '$', ')', 'C')
|
|
STATE_SETG1(state, CHARSET_KSX1001)
|
|
NEXT_OUT(4)
|
|
}
|
|
|
|
if (!STATE_GETFLAG(state, F_SHIFTED)) {
|
|
WRITE1(SO)
|
|
STATE_SETFLAG(state, F_SHIFTED)
|
|
NEXT_OUT(1)
|
|
}
|
|
|
|
TRYMAP_ENC(cp949, code, c) {
|
|
if (code & 0x8000) /* MSB set: CP949 */
|
|
return 1;
|
|
WRITE2(code >> 8, code & 0xff)
|
|
NEXT(1, 2)
|
|
} else
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define HAVE_DECODER_INIT
|
|
DECODER_INIT(iso2022_kr)
|
|
{
|
|
STATE_CLEARFLAGS(state)
|
|
STATE_SETG0(state, CHARSET_ASCII)
|
|
STATE_SETG1(state, CHARSET_ASCII)
|
|
return 0;
|
|
}
|
|
|
|
#define HAVE_DECODER_RESET
|
|
DECODER_RESET(iso2022_kr)
|
|
{
|
|
STATE_CLEARFLAG(state, F_SHIFTED)
|
|
return 0;
|
|
}
|
|
|
|
DECODER(iso2022_kr)
|
|
{
|
|
ISO2022_LOOP_BEGIN
|
|
unsigned char charset, c2;
|
|
|
|
ISO2022_GETCHARSET(charset, c)
|
|
|
|
if (charset & CHARSET_DOUBLEBYTE) {
|
|
/* all double byte character sets are in KS X 1001 here */
|
|
RESERVE_INBUF(2)
|
|
RESERVE_OUTBUF(1)
|
|
c2 = IN2;
|
|
if (c2 >= 0x80)
|
|
return 1;
|
|
TRYMAP_DEC(ksx1001, **outbuf, c, c2) {
|
|
NEXT(2, 1)
|
|
} else
|
|
return 2;
|
|
} else {
|
|
RESERVE_OUTBUF(1)
|
|
OUT1(c);
|
|
NEXT(1, 1)
|
|
}
|
|
ISO2022_LOOP_END
|
|
return 0;
|
|
}
|
|
|
|
#include "codecentry.h"
|
|
BEGIN_CODEC_REGISTRY(iso2022_kr)
|
|
MAPOPEN(ko_KR)
|
|
IMPORTMAP_DEC(ksx1001)
|
|
IMPORTMAP_ENC(cp949)
|
|
MAPCLOSE()
|
|
END_CODEC_REGISTRY(iso2022_kr)
|