diff options
Diffstat (limited to 'lib/sh/xstrchr.c')
-rw-r--r-- | lib/sh/xstrchr.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/lib/sh/xstrchr.c b/lib/sh/xstrchr.c deleted file mode 100644 index 6dd4d8e..0000000 --- a/lib/sh/xstrchr.c +++ /dev/null @@ -1,78 +0,0 @@ -/* xstrchr.c - strchr(3) that handles multibyte characters. */ - -/* Copyright (C) 2002 Free Software Foundation, Inc. - - This file is part of GNU Bash, the Bourne Again SHell. - - Bash is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - Bash is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with Bash. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include <config.h> - -#ifdef HAVE_STDLIB_H -# include <stdlib.h> -#endif - -#include "bashansi.h" -#include "shmbutil.h" - -#undef xstrchr - -/* In some locales, the non-first byte of some multibyte characters have - the same value as some ascii character. Faced with these strings, a - legacy strchr() might return the wrong value. */ - -char * -#if defined (PROTOTYPES) -xstrchr (const char *s, int c) -#else -xstrchr (s, c) - const char *s; - int c; -#endif -{ -#if HANDLE_MULTIBYTE - char *pos; - mbstate_t state; - size_t strlength, mblength; - - /* The locale encodings with said weird property are BIG5, BIG5-HKSCS, - GBK, GB18030, SHIFT_JIS, and JOHAB. They exhibit the problem only - when c >= 0x30. We can therefore use the faster bytewise search if - c <= 0x30. */ - if ((unsigned char)c >= '0' && MB_CUR_MAX > 1) - { - pos = (char *)s; - memset (&state, '\0', sizeof(mbstate_t)); - strlength = strlen (s); - - while (strlength > 0) - { - mblength = mbrlen (pos, strlength, &state); - if (mblength == (size_t)-2 || mblength == (size_t)-1 || mblength == (size_t)0) - mblength = 1; - - if (c == (unsigned char)*pos) - return pos; - - strlength -= mblength; - pos += mblength; - } - - return ((char *)NULL); - } - else -#endif - return (strchr (s, c)); -} |