| |
| /* |
| * 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; |
| } |