| /* |
| * GB/T 12345-1990 |
| */ |
| |
| /* |
| * GB/T 12345-1990 is a traditional chinese counterpart of GB 2312-1986. |
| * According to the unicode.org tables: |
| * 2146 characters have been changed to their traditional counterpart, |
| * 103 characters have been added, no characters have been removed. |
| * Therefore we use an auxiliary table, which contains only the changes. |
| */ |
| |
| #include "gb12345ext.h" |
| |
| static int |
| gb12345_mbtowc (conv_t conv, wchar_t *pwc, const unsigned char *s, int n) |
| { |
| int ret; |
| |
| /* The gb12345ext table overrides some entries in the gb2312 table. */ |
| /* Try the GB12345 extensions -> Unicode table. */ |
| ret = gb12345ext_mbtowc(conv,pwc,s,n); |
| if (ret != RET_ILSEQ) |
| return ret; |
| /* Try the GB2312 -> Unicode table. */ |
| ret = gb2312_mbtowc(conv,pwc,s,n); |
| return ret; |
| } |
| |
| static int |
| gb12345_wctomb (conv_t conv, unsigned char *r, wchar_t wc, int n) |
| { |
| int ret; |
| |
| /* The gb12345ext table overrides some entries in the gb2312 table. */ |
| /* Try the Unicode -> GB12345 extensions table. */ |
| ret = gb12345ext_wctomb(conv,r,wc,n); |
| if (ret != RET_ILSEQ) |
| return ret; |
| /* Try the Unicode -> GB2312 table, and check that the resulting GB2312 |
| byte sequence is not overridden by the GB12345 extensions table. */ |
| ret = gb2312_wctomb(conv,r,wc,n); |
| if (ret == 2 && gb12345ext_mbtowc(conv,&wc,r,2) == 2) |
| return RET_ILSEQ; |
| else |
| return ret; |
| } |