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- /*
- * GB18030
- */
-
- /*
- * GB18030, as implemented in glibc-2.2, is an extension of GBK (= CP936).
- * It adds the following ranges:
- * 1. Two-byte range
- * 0xA2E3, 0xA8BF, 0xA98A..0xA995, 0xFE50..0xFE9F
- * 2. Four-byte range
- * 0x{81..84}{30..39}{81..FE}{30..39}
- * Most of Unicode plane 1 in Unicode order.
- */
-
- #include "gb18030ext.h"
- #include "gb18030uni.h"
-
- static int
- gb18030_mbtowc (conv_t conv, wchar_t *pwc, const unsigned char *s, int n)
- {
- int ret;
-
- /* Code set 0 (ASCII) */
- if (*s < 0x80)
- return ascii_mbtowc(conv,pwc,s,n);
-
- /* Code set 1 (GBK extended) */
- ret = gbk_mbtowc(conv,pwc,s,n);
- if (ret != RET_ILSEQ)
- return ret;
-
- ret = gb18030ext_mbtowc(conv,pwc,s,n);
- if (ret != RET_ILSEQ)
- return ret;
-
- /* Code set 2 (remainder of Unicode) */
- return gb18030uni_mbtowc(conv,pwc,s,n);
- }
-
- static int
- gb18030_wctomb (conv_t conv, unsigned char *r, wchar_t wc, int n)
- {
- int ret;
-
- /* Code set 0 (ASCII) */
- ret = ascii_wctomb(conv,r,wc,n);
- if (ret != RET_ILSEQ)
- return ret;
-
- /* Code set 1 (GBK extended) */
- ret = gbk_wctomb(conv,r,wc,n);
- if (ret != RET_ILSEQ)
- return ret;
-
- ret = gb18030ext_wctomb(conv,r,wc,n);
- if (ret != RET_ILSEQ)
- return ret;
-
- /* Code set 2 (remainder of Unicode) */
- return gb18030uni_wctomb(conv,r,wc,n);
- }
-