1 /* 2 * SPDX-License-Identifier: BSD-4-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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)locate.h 8.1 (Berkeley) 6/6/93 37 * $FreeBSD$ 38 */ 39 40 /* Symbolic constants shared by locate.c and code.c */ 41 42 #define NBG 128 /* number of bigrams considered */ 43 #define OFFSET 14 /* abs value of max likely diff */ 44 #define PARITY 0200 /* parity bit */ 45 #define SWITCH 30 /* switch code */ 46 #define UMLAUT 31 /* an 8 bit char followed */ 47 48 /* 0-28 likeliest differential counts + offset to make nonnegative */ 49 #define LDC_MIN 0 50 #define LDC_MAX 28 51 52 /* 128-255 bigram codes (128 most common, as determined by 'updatedb') */ 53 #define BIGRAM_MIN (UCHAR_MAX - SCHAR_MAX) 54 #define BIGRAM_MAX UCHAR_MAX 55 56 /* 32-127 single character (printable) ascii residue (ie, literal) */ 57 #define ASCII_MIN 32 58 #define ASCII_MAX SCHAR_MAX 59 60 /* #define TO7BIT(x) (x = ( ((u_char)x) & SCHAR_MAX )) */ 61 #define TO7BIT(x) (x = x & SCHAR_MAX ) 62 63 64 #if UCHAR_MAX >= 4096 65 define TOLOWER(ch) tolower(ch) 66 #else 67 68 u_char myctype[UCHAR_MAX + 1]; 69 #define TOLOWER(ch) (myctype[ch]) 70 #endif 71 72 #define INTSIZE (sizeof(int)) 73 74 #define LOCATE_REG "*?[]\\" /* fnmatch(3) meta characters */ 75