1 /* $NetBSD: wcspbrk.c,v 1.5 2011/11/24 18:44:25 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 Citrus Project, 5 * Copyright (c) 2011 Joerg Sonnenberger, 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * citrus Id: wcspbrk.c,v 1.2 2000/12/21 05:07:25 itojun Exp 30 */ 31 32 #include <sys/cdefs.h> 33 __RCSID("$NetBSD: wcspbrk.c,v 1.5 2011/11/24 18:44:25 joerg Exp $"); 34 35 #include <assert.h> 36 #include <inttypes.h> 37 #include <string.h> 38 #include <wchar.h> 39 40 #include "wcscspn_bloom.h" 41 42 wchar_t * 43 wcspbrk(const wchar_t *s, const wchar_t *set) 44 { 45 size_t bloom[BLOOM_ARRAY_SIZE]; 46 const wchar_t *p; 47 const wchar_t *q; 48 49 _DIAGASSERT(s != NULL); 50 _DIAGASSERT(set != NULL); 51 52 if (set[0] == '\0') 53 return NULL; 54 if (set[1] == '\0') 55 return wcschr(s, set[0]); 56 57 wcsspn_bloom_init(bloom, set); 58 59 for (p = s; *p; ++p) { 60 if (!wcsspn_in_bloom(bloom, *p)) 61 continue; 62 63 q = set; 64 do { 65 if (*p == *q) 66 return __UNCONST(p); 67 } while (*++q); 68 } 69 return NULL; 70 } 71