1 /* 2 * Copyright (c) 2004 Tim J. Robbins. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef CSET_H 28 #define CSET_H 29 30 #include <stdbool.h> 31 #include <wchar.h> 32 #include <wctype.h> 33 34 struct csnode { 35 wchar_t csn_min; 36 wchar_t csn_max; 37 struct csnode *csn_left; 38 struct csnode *csn_right; 39 }; 40 41 struct csclass { 42 wctype_t csc_type; 43 bool csc_invert; 44 struct csclass *csc_next; 45 }; 46 47 struct cset { 48 #define CS_CACHE_SIZE 256 49 bool cs_cache[CS_CACHE_SIZE]; 50 bool cs_havecache; 51 struct csclass *cs_classes; 52 struct csnode *cs_root; 53 bool cs_invert; 54 }; 55 56 bool cset_addclass(struct cset *, wctype_t, bool); 57 struct cset *cset_alloc(void); 58 bool cset_add(struct cset *, wchar_t); 59 void cset_invert(struct cset *); 60 bool cset_in_hard(struct cset *, wchar_t); 61 void cset_cache(struct cset *); 62 63 #endif /* CSET_H */ 64