1/*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
5 * Copyright (c) 1989, 1993
6 *	The Regents of the University of California.  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 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33/* Symbolic constants shared by locate.c and code.c */
34
35#define	NBG		128		/* number of bigrams considered */
36#define	OFFSET		14		/* abs value of max likely diff */
37#define	PARITY		0200		/* parity bit */
38#define	SWITCH		30		/* switch code */
39#define UMLAUT          31              /* an 8 bit char followed */
40
41/* 	0-28	likeliest differential counts + offset to make nonnegative */
42#define LDC_MIN         0
43#define LDC_MAX        28
44
45/*	128-255 bigram codes (128 most common, as determined by 'updatedb') */
46#define BIGRAM_MIN    (UCHAR_MAX - SCHAR_MAX)
47#define BIGRAM_MAX    UCHAR_MAX
48
49/*	32-127  single character (printable) ascii residue (ie, literal) */
50#define ASCII_MIN      32
51#define ASCII_MAX     SCHAR_MAX
52
53/* #define TO7BIT(x)     (x = ( ((u_char)x) & SCHAR_MAX )) */
54#define TO7BIT(x)     (x = x & SCHAR_MAX )
55
56
57#if UCHAR_MAX >= 4096
58   define TOLOWER(ch)	  tolower(ch)
59#else
60
61extern u_char myctype[UCHAR_MAX + 1];
62#define TOLOWER(ch)	(myctype[ch])
63#endif
64
65#define INTSIZE (sizeof(int))
66
67#define LOCATE_REG "*?[]\\"  /* fnmatch(3) meta characters */
68
69/* max. path length for locate. Should be at least 1024 (PATH_MAX), but can be longer */
70#ifndef LOCATE_PATH_MAX
71#define LOCATE_PATH_MAX (1*1024)
72#endif
73
74