| |
| /* |
| * CP950 |
| */ |
| |
| /* |
| * Microsoft CP950 is a slightly extended and slightly modified version of |
| * BIG5. The differences between the EASTASIA/OTHER/BIG5.TXT and |
| * VENDORS/MICSFT/WINDOWS/CP950.TXT tables found on ftp.unicode.org are |
| * as follows: |
| * |
| * 1. Some characters in the BIG5 range are defined differently: |
| * |
| * code BIG5.TXT CP950.TXT |
| * 0xA145 0x2022 # BULLET 0x2027 # HYPHENATION POINT |
| * 0xA14E 0xFF64 # HALFWIDTH IDEOGRAPHIC COMMA |
| * 0xFE51 # SMALL IDEOGRAPHIC COMMA |
| * 0xA15A --- 0x2574 # BOX DRAWINGS LIGHT LEFT |
| * 0xA1C2 0x203E # OVERLINE 0x00AF # MACRON |
| * 0xA1C3 --- 0xFFE3 # FULLWIDTH MACRON |
| * 0xA1C5 --- 0x02CD # MODIFIER LETTER LOW MACRON |
| * 0xA1E3 0x223C # TILDE OPERATOR 0xFF5E # FULLWIDTH TILDE |
| * 0xA1F2 0x2641 # EARTH 0x2295 # CIRCLED PLUS |
| * 0xA1F3 0x2609 # SUN 0x2299 # CIRCLED DOT OPERATOR |
| * 0xA1FE --- 0xFF0F # FULLWIDTH SOLIDUS |
| * 0xA240 --- 0xFF3C # FULLWIDTH REVERSE SOLIDUS |
| * 0xA241 0xFF0F # FULLWIDTH SOLIDUS 0x2215 # DIVISION SLASH |
| * 0xA242 0xFF3C # FULLWIDTH REVERSE SOLIDUS |
| * 0xFE68 # SMALL REVERSE SOLIDUS |
| * 0xA244 0x00A5 # YEN SIGN 0xFFE5 # FULLWIDTH YEN SIGN |
| * 0xA246 0x00A2 # CENT SIGN 0xFFE0 # FULLWIDTH CENT SIGN |
| * 0xA247 0x00A3 # POUND SIGN 0xFFE1 # FULLWIDTH POUND SIGN |
| * 0xA2CC --- 0x5341 |
| * 0xA2CE --- 0x5345 |
| * |
| * We don't implement these changes. |
| * |
| * 2. A small new row. See cp950ext.h. |
| */ |
| |
| #include "cp950ext.h" |
| |
| static int |
| cp950_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); |
| /* Code set 1 (BIG5 extended) */ |
| if (c >= 0xa1 && c < 0xff) { |
| if (n < 2) |
| return RET_TOOFEW(0); |
| { |
| unsigned char c2 = s[1]; |
| if ((c2 >= 0x40 && c2 < 0x7f) || (c2 >= 0xa1 && c2 < 0xff)) { |
| int ret = big5_mbtowc(conv,pwc,s,2); |
| if (ret != RET_ILSEQ) |
| return ret; |
| } |
| } |
| if (c == 0xf9) { |
| int ret = cp950ext_mbtowc(conv,pwc,s,2); |
| if (ret != RET_ILSEQ) |
| return ret; |
| } |
| } |
| return RET_ILSEQ; |
| } |
| |
| static int |
| cp950_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 (BIG5 extended) */ |
| ret = big5_wctomb(conv,buf,wc,2); |
| if (ret != RET_ILSEQ) { |
| if (ret != 2) abort(); |
| if (n < 2) |
| return RET_TOOSMALL; |
| r[0] = buf[0]; |
| r[1] = buf[1]; |
| return 2; |
| } |
| ret = cp950ext_wctomb(conv,buf,wc,2); |
| if (ret != RET_ILSEQ) { |
| if (ret != 2) abort(); |
| if (n < 2) |
| return RET_TOOSMALL; |
| r[0] = buf[0]; |
| r[1] = buf[1]; |
| return 2; |
| } |
| |
| return RET_ILSEQ; |
| } |
