From fa095a4504cbe668e4244547e2c141597bea4ecf Mon Sep 17 00:00:00 2001 From: Andreas Rottmann Date: Mon, 14 Sep 2009 12:32:44 +0200 Subject: Imported Upstream version 0.9.1 --- lib/unistr/u32-strspn.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 lib/unistr/u32-strspn.c (limited to 'lib/unistr/u32-strspn.c') diff --git a/lib/unistr/u32-strspn.c b/lib/unistr/u32-strspn.c new file mode 100644 index 0000000..6f80202 --- /dev/null +++ b/lib/unistr/u32-strspn.c @@ -0,0 +1,50 @@ +/* Search for some characters in UTF-32 string. + Copyright (C) 1999, 2002, 2006 Free Software Foundation, Inc. + Written by Bruno Haible , 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 . */ + +#include + +/* Specification. */ +#include "unistr.h" + +#define FUNC u32_strspn +#define UNIT uint32_t +#define U_STRCHR u32_strchr + +size_t +FUNC (const UNIT *str, const UNIT *accept) +{ + /* Optimize two cases. */ + if (accept[0] == 0) + return 0; + if (accept[1] == 0) + { + ucs4_t uc = accept[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 (accept, *ptr)) + break; + return ptr - str; + } +} -- cgit v1.2.3