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/u-strcspn.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 lib/unistr/u-strcspn.h (limited to 'lib/unistr/u-strcspn.h') diff --git a/lib/unistr/u-strcspn.h b/lib/unistr/u-strcspn.h new file mode 100644 index 00000000..de326563 --- /dev/null +++ b/lib/unistr/u-strcspn.h @@ -0,0 +1,54 @@ +/* Search for some characters in UTF-8/UTF-16/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 . */ + +size_t +FUNC (const UNIT *str, const UNIT *reject) +{ + /* Optimize two cases. */ + if (reject[0] == 0) + return U_STRLEN (str); + { + ucs4_t uc; + int count = U_STRMBTOUC (&uc, reject); + if (count >= 0 && reject[count] == 0) + { + const UNIT *found = U_STRCHR (str, uc); + if (found != NULL) + return found - str; + else + return U_STRLEN (str); + } + } + /* General case. */ + { + const UNIT *ptr = str; + + for (;;) + { + ucs4_t uc; + int count = U_STRMBTOUC (&uc, ptr); + if (count == 0) + return ptr - str; + if (count < 0) + break; + if (U_STRCHR (reject, uc)) + return ptr - str; + ptr += count; + } + return U_STRLEN (str); + } +} -- cgit v1.2.3