1/* Search for some characters in UTF-32 string. 2 Copyright (C) 1999, 2002, 2006, 2009-2010 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 2002. 4 5 This program is free software: you can redistribute it and/or modify it 6 under the terms of the GNU Lesser General Public License as published 7 by the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18#include <config.h> 19 20/* Specification. */ 21#include "unistr.h" 22 23#define FUNC u32_strpbrk 24#define UNIT uint32_t 25#define U_STRCHR u32_strchr 26 27UNIT * 28FUNC (const UNIT *str, const UNIT *accept) 29{ 30 /* Optimize two cases. */ 31 if (accept[0] == 0) 32 return NULL; 33 if (accept[1] == 0) 34 { 35 ucs4_t uc = accept[0]; 36 const UNIT *ptr = str; 37 for (; *ptr != 0; ptr++) 38 if (*ptr == uc) 39 return (UNIT *) ptr; 40 return NULL; 41 } 42 /* General case. */ 43 { 44 const UNIT *ptr = str; 45 for (; *ptr != 0; ptr++) 46 if (U_STRCHR (accept, *ptr)) 47 return (UNIT *) ptr; 48 return NULL; 49 } 50} 51