diff options
Diffstat (limited to 'gl/mbrtowc.c')
| -rw-r--r-- | gl/mbrtowc.c | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/gl/mbrtowc.c b/gl/mbrtowc.c index 603f0060..0fec5f1c 100644 --- a/gl/mbrtowc.c +++ b/gl/mbrtowc.c @@ -1,5 +1,5 @@ /* Convert multibyte character to wide character. - Copyright (C) 1999-2002, 2005-2008 Free Software Foundation, Inc. + Copyright (C) 1999-2002, 2005-2009 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2008. This program is free software: you can redistribute it and/or modify @@ -89,7 +89,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) return (size_t)(-1); } - /* Here 0 < m ≤ 4. */ + /* Here m > 0. */ # if __GLIBC__ /* Work around bug <http://sourceware.org/bugzilla/show_bug.cgi?id=9674> */ @@ -118,7 +118,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) lack mbrtowc(), we use the second approach. The possible encodings are: - 8-bit encodings, - - EUC-JP, EUC-KR, GB2312, EUC-TW, BIG5, SJIS, + - EUC-JP, EUC-KR, GB2312, EUC-TW, BIG5, GB18030, SJIS, - UTF-8. Use specialized code for each. */ if (m >= 4 || m >= MB_CUR_MAX) @@ -238,6 +238,39 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) } goto invalid; } + if (STREQ (encoding, "GB18030", 'G', 'B', '1', '8', '0', '3', '0', 0, 0)) + { + if (m == 1) + { + unsigned char c = (unsigned char) p[0]; + + if ((c >= 0x90 && c <= 0xe3) || (c >= 0xf8 && c <= 0xfe)) + goto incomplete; + } + else /* m == 2 || m == 3 */ + { + unsigned char c = (unsigned char) p[0]; + + if (c >= 0x90 && c <= 0xe3) + { + unsigned char c2 = (unsigned char) p[1]; + + if (c2 >= 0x30 && c2 <= 0x39) + { + if (m == 2) + goto incomplete; + else /* m == 3 */ + { + unsigned char c3 = (unsigned char) p[2]; + + if (c3 >= 0x81 && c3 <= 0xfe) + goto incomplete; + } + } + } + } + goto invalid; + } if (STREQ (encoding, "SJIS", 'S', 'J', 'I', 'S', 0, 0, 0, 0, 0)) { if (m == 1) @@ -258,10 +291,14 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) incomplete: { size_t k = nstate; - /* Here 0 < k < m < 4. */ + /* Here 0 <= k < m < 4. */ pstate[++k] = s[0]; if (k < m) - pstate[++k] = s[1]; + { + pstate[++k] = s[1]; + if (k < m) + pstate[++k] = s[2]; + } if (k != m) abort (); } |