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/*
* _euc_jisx0213.c: the EUC-JISX0213 codec
*
* Written by Hye-Shik Chang <perky@FreeBSD.org>
* $CJKCodecs: _euc_jisx0213.c,v 1.2 2003/12/31 05:46:55 perky Exp $
*/
#define USING_BINARY_PAIR_SEARCH
#include "codeccommon.h"
#include "map_jisx0213_pairs.h"
ENCMAP(jisxcommon)
DECMAP(jisx0208)
DECMAP(jisx0212)
ENCMAP(jisx0213_bmp)
DECMAP(jisx0213_1_bmp)
DECMAP(jisx0213_2_bmp)
ENCMAP(jisx0213_emp)
DECMAP(jisx0213_1_emp)
DECMAP(jisx0213_2_emp)
#define EMPBASE 0x20000
ENCODER(euc_jisx0213)
{
while (inleft > 0) {
ucs4_t c = IN1;
DBCHAR code;
int insize;
if (c < 0x80) {
WRITE1(c)
NEXT(1, 1)
continue;
}
DECODE_SURROGATE(c)
insize = GET_INSIZE(c);
if (c <= 0xFFFF) {
/* try 0213 first because it might have MULTIC */
TRYMAP_ENC(jisx0213_bmp, code, c) {
if (code == MULTIC) {
if (inleft < 2) {
if (flags & MBENC_FLUSH) {
code = find_pairencmap(c, 0, jisx0213_pairencmap,
JISX0213_ENCPAIRS);
if (code == DBCINV)
return 1;
} else
return MBERR_TOOFEW;
} else {
code = find_pairencmap(c, (*inbuf)[1],
jisx0213_pairencmap, JISX0213_ENCPAIRS);
if (code == DBCINV) {
code = find_pairencmap(c, 0, jisx0213_pairencmap,
JISX0213_ENCPAIRS);
if (code == DBCINV)
return 1;
} else
insize = 2;
}
}
} else TRYMAP_ENC(jisxcommon, code, c);
else if (c >= 0xff61 && c <= 0xff9f) {
/* JIS X 0201 half-width katakana */
WRITE2(0x8e, c - 0xfec0)
NEXT(1, 2)
continue;
} else if (c == 0xff3c)
/* F/W REVERSE SOLIDUS (see NOTES.euc-jisx0213) */
code = 0x2140;
else if (c == 0xff5e)
/* F/W TILDE (see NOTES.euc-jisx0213) */
code = 0x2232;
else
return 1;
} else if (c >> 16 == EMPBASE >> 16) {
TRYMAP_ENC(jisx0213_emp, code, c & 0xffff);
else return insize;
} else
return insize;
if (code & 0x8000) {
/* Codeset 2 */
WRITE3(0x8f, code >> 8, (code & 0xFF) | 0x80)
NEXT(insize, 3)
} else {
/* Codeset 1 */
WRITE2((code >> 8) | 0x80, (code & 0xFF) | 0x80)
NEXT(insize, 2)
}
}
return 0;
}
DECODER(euc_jisx0213)
{
while (inleft > 0) {
unsigned char c = IN1;
ucs4_t code;
RESERVE_OUTBUF(1)
if (c < 0x80) {
OUT1(c)
NEXT(1, 1)
continue;
}
if (c == 0x8e) {
/* JIS X 0201 half-width katakana */
unsigned char c2;
RESERVE_INBUF(2)
c2 = IN2;
if (c2 >= 0xa1 && c2 <= 0xdf) {
OUT1(0xfec0 + c2)
NEXT(2, 1)
} else
return 2;
} else if (c == 0x8f) {
unsigned char c2, c3;
RESERVE_INBUF(3)
c2 = IN2 ^ 0x80;
c3 = IN3 ^ 0x80;
/* JIS X 0213 Plane 2 or JIS X 0212 (see NOTES.euc-jisx0213) */
TRYMAP_DEC(jisx0213_2_bmp, **outbuf, c2, c3) ;
else TRYMAP_DEC(jisx0213_2_emp, code, c2, c3) {
PUTUCS4(EMPBASE | code)
NEXT_IN(3)
continue;
} else TRYMAP_DEC(jisx0212, **outbuf, c2, c3) ;
else return 3;
NEXT(3, 1)
} else {
unsigned char c2;
RESERVE_INBUF(2)
c ^= 0x80;
c2 = IN2 ^ 0x80;
/* JIS X 0213 Plane 1 */
if (c == 0x21 && c2 == 0x40) **outbuf = 0xff3c;
else if (c == 0x22 && c2 == 0x32) **outbuf = 0xff5e;
else TRYMAP_DEC(jisx0208, **outbuf, c, c2);
else TRYMAP_DEC(jisx0213_1_bmp, **outbuf, c, c2);
else TRYMAP_DEC(jisx0213_1_emp, code, c, c2) {
PUTUCS4(EMPBASE | code)
NEXT_IN(2)
continue;
} else TRYMAP_DEC(jisx0213_pair, code, c, c2) {
WRITE2(code >> 16, code & 0xffff)
NEXT(2, 2)
continue;
} else return 2;
NEXT(2, 1)
}
}
return 0;
}
#include "codecentry.h"
BEGIN_CODEC_REGISTRY(euc_jisx0213)
MAPOPEN(ja_JP)
IMPORTMAP_ENC(jisxcommon)
IMPORTMAP_DEC(jisx0208)
IMPORTMAP_DEC(jisx0212)
IMPORTMAP_ENC(jisx0213_bmp)
IMPORTMAP_DEC(jisx0213_1_bmp)
IMPORTMAP_DEC(jisx0213_2_bmp)
IMPORTMAP_ENC(jisx0213_emp)
IMPORTMAP_DEC(jisx0213_1_emp)
IMPORTMAP_DEC(jisx0213_2_emp)
MAPCLOSE()
END_CODEC_REGISTRY(euc_jisx0213)
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