/*
* CP949 is EUC-KR, extended with UHC (Unified Hangul Code).
*/
#include "uhc_1.h"
#include "uhc_2.h"
static int
cp949_mbtowc (conv_t conv, wchar_t *pwc, const unsigned char *s, int n)
{
unsigned char c = *s;
/* Code set 0 (ASCII) */
if (c < 0x80)
return ascii_mbtowc(conv,pwc,s,n);
/* UHC part 1 */
if (c >= 0x81 && c <= 0xa0)
return uhc_1_mbtowc(conv,pwc,s,n);
if (c >= 0xa1 && c < 0xff) {
if (n < 2)
return RET_TOOFEW(0);
{
unsigned char c2 = s[1];
if (c2 < 0xa1)
/* UHC part 2 */
return uhc_2_mbtowc(conv,pwc,s,n);
else if (c2 < 0xff) {
/* Code set 1 (KS C 5601-1992) */
unsigned char buf[2];
buf[0] = c-0x80; buf[1] = c2-0x80;
return ksc5601_mbtowc(conv,pwc,buf,2);
}
}
}
return RET_ILSEQ;
}
static int
cp949_wctomb (conv_t conv, unsigned char *r, wchar_t wc, int n)
{
unsigned char buf[2];
int ret;
/* Code set 0 (ASCII) */
ret = ascii_wctomb(conv,r,wc,n);
if (ret != RET_ILSEQ)
return ret;
/* Code set 1 (KS C 5601-1992) */
ret = ksc5601_wctomb(conv,buf,wc,2);
if (ret != RET_ILSEQ) {
if (ret != 2) abort();
if (n < 2)
return RET_TOOSMALL;
r[0] = buf[0]+0x80;
r[1] = buf[1]+0x80;
return 2;
}
/* UHC */
if (wc >= 0xac00 && wc < 0xd7a4) {
if (wc < 0xc8a5)
return uhc_1_wctomb(conv,r,wc,n);
else
return uhc_2_wctomb(conv,r,wc,n);
}
return RET_ILSEQ;
}
