diff options
Diffstat (limited to 'gnulib/lib/unistr/u32-strcspn.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/lib/unistr/u32-strcspn.c | 51 |
2 files changed, 51 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/lib/unistr/u32-strcspn.c b/gnulib/lib/unistr/u32-strcspn.c new file mode 100644 index 0000000..b53a417 --- /dev/null +++ b/gnulib/lib/unistr/u32-strcspn.c @@ -0,0 +1,51 @@ +/* Search for some characters in UTF-32 string. + Copyright (C) 1999, 2002, 2006, 2009-2011 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2002. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include "unistr.h" + +#define FUNC u32_strcspn +#define UNIT uint32_t +#define U_STRLEN u32_strlen +#define U_STRCHR u32_strchr + +size_t +FUNC (const UNIT *str, const UNIT *reject) +{ + /* Optimize two cases. */ + if (reject[0] == 0) + return U_STRLEN (str); + if (reject[1] == 0) + { + ucs4_t uc = reject[0]; + const UNIT *ptr = str; + for (; *ptr != 0; ptr++) + if (*ptr == uc) + break; + return ptr - str; + } + /* General case. */ + { + const UNIT *ptr = str; + for (; *ptr != 0; ptr++) + if (U_STRCHR (reject, *ptr)) + break; + return ptr - str; + } +} |