1 /* 2 * Copyright (c) 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin. 3 * Copyright (c) 1989, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)locate.h 8.1 (Berkeley) 6/6/93 35 * $FreeBSD$ 36 */ 37 38 /* Symbolic constants shared by locate.c and code.c */ 39 40 #define NBG 128 /* number of bigrams considered */ 41 #define OFFSET 14 /* abs value of max likely diff */ 42 #define PARITY 0200 /* parity bit */ 43 #define SWITCH 30 /* switch code */ 44 #define UMLAUT 31 /* an 8 bit char followed */ 45 46 /* 0-28 likeliest differential counts + offset to make nonnegative */ 47 #define LDC_MIN 0 48 #define LDC_MAX 28 49 50 /* 128-255 bigram codes (128 most common, as determined by 'updatedb') */ 51 #define BIGRAM_MIN (UCHAR_MAX - SCHAR_MAX) 52 #define BIGRAM_MAX UCHAR_MAX 53 54 /* 32-127 single character (printable) ascii residue (ie, literal) */ 55 #define ASCII_MIN 32 56 #define ASCII_MAX SCHAR_MAX 57 58 /* #define TO7BIT(x) (x = ( ((u_char)x) & SCHAR_MAX )) */ 59 #define TO7BIT(x) (x = x & SCHAR_MAX ) 60 61 62 #if UCHAR_MAX >= 4096 63 define TOLOWER(ch) tolower(ch) 64 #else 65 66 u_char myctype[UCHAR_MAX + 1]; 67 #define TOLOWER(ch) (myctype[ch]) 68 #endif 69 70 #define INTSIZE (sizeof(int)) 71 72 #define LOCATE_REG "*?[]\\" /* fnmatch(3) meta characters */ 73