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      1 /*	$NetBSD: utils.h,v 1.9 2021/04/22 19:20:24 christos Exp $	*/
      2 
      3 /*-
      4  * SPDX-License-Identifier: BSD-3-Clause
      5  *
      6  * Copyright (c) 1992, 1993, 1994 Henry Spencer.
      7  * Copyright (c) 1992, 1993, 1994
      8  *	The Regents of the University of California.  All rights reserved.
      9  *
     10  * This code is derived from software contributed to Berkeley by
     11  * Henry Spencer.
     12  *
     13  * Redistribution and use in source and binary forms, with or without
     14  * modification, are permitted provided that the following conditions
     15  * are met:
     16  * 1. Redistributions of source code must retain the above copyright
     17  *    notice, this list of conditions and the following disclaimer.
     18  * 2. Redistributions in binary form must reproduce the above copyright
     19  *    notice, this list of conditions and the following disclaimer in the
     20  *    documentation and/or other materials provided with the distribution.
     21  * 3. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	@(#)utils.h	8.3 (Berkeley) 3/20/94
     38  * $FreeBSD: head/lib/libc/regex/utils.h 341838 2018-12-12 04:23:00Z yuripv $
     39  */
     40 
     41 #ifdef NLS
     42 #include <wchar.h>
     43 #include <wctype.h>
     44 #else
     45 #include <ctype.h>
     46 #define wint_t regex_wint_t
     47 #define mbstate_t regex_mbstate_t
     48 #define wctype_t regex_wctype_t
     49 typedef short wint_t;
     50 typedef char mbstate_t;
     51 typedef short wctype_t;
     52 #define iswupper(a) isupper(a)
     53 #define iswlower(a) islower(a)
     54 #define iswalpha(a) isalpha(a)
     55 #define iswalnum(a) isalnum(a)
     56 #define towupper(a) toupper(a)
     57 #define towlower(a) tolower(a)
     58 extern wctype_t __regex_wctype(const char *);
     59 extern int __regex_iswctype(wint_t, wctype_t);
     60 #define wctype(s) __regex_wctype(s)
     61 #define iswctype(c, t) __regex_iswctype((c), (t))
     62 #endif
     63 
     64 /* utility definitions */
     65 #define	DUPMAX		_POSIX2_RE_DUP_MAX	/* xxx is this right? */
     66 #define	INFINITY	(DUPMAX + 1)
     67 
     68 #define	NC_MAX		(CHAR_MAX - CHAR_MIN + 1)
     69 #define	NC		((MB_CUR_MAX) == 1 ? (NC_MAX) : (128))
     70 typedef unsigned char uch;
     71 
     72 /* switch off assertions (if not already off) if no REDEBUG */
     73 #ifndef REDEBUG
     74 #ifndef NDEBUG
     75 #define	NDEBUG	/* no assertions please */
     76 #endif
     77 #endif
     78 #include <assert.h>
     79 
     80 /* for old systems with bcopy() but no memmove() */
     81 #ifdef USEBCOPY
     82 #define	memmove(d, s, c)	bcopy(s, d, c)
     83 #endif
     84