extern.h revision 331722 
1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 *	@(#)extern.h	8.1 (Berkeley) 6/6/93
30 * $FreeBSD: stable/11/usr.bin/tr/extern.h 331722 2018-03-29 02:50:57Z eadler $
31 */
32
33#include <limits.h>
34
35#define	NCHARS_SB	(UCHAR_MAX + 1)	/* Number of single-byte characters. */
36#define	OOBCH		-1		/* Out of band character value. */
37
38typedef struct {
39	enum { STRING1, STRING2 } which;
40	enum { EOS, INFINITE, NORMAL, RANGE, SEQUENCE,
41	       CCLASS, CCLASS_UPPER, CCLASS_LOWER, SET } state;
42	int		cnt;		/* character count */
43	wint_t		lastch;		/* last character */
44	wctype_t	cclass;		/* character class from wctype() */
45	wint_t		equiv[NCHARS_SB];	/* equivalence set */
46	wint_t		*set;		/* set of characters */
47	char		*str;		/* user's string */
48} STR;
49
50wint_t	 next(STR *);
51int charcoll(const void *, const void *);
52