1/* $OpenBSD: diff.h,v 1.35 2024/05/21 05:00:48 jsg Exp $ */ 2 3/* 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)diff.h 8.1 (Berkeley) 6/6/93 32 */ 33 34#include <sys/types.h> 35#include <regex.h> 36 37/* 38 * Output format options 39 */ 40#define D_NORMAL 0 /* Normal output */ 41#define D_EDIT -1 /* Editor script out */ 42#define D_REVERSE 1 /* Reverse editor script */ 43#define D_CONTEXT 2 /* Diff with context */ 44#define D_UNIFIED 3 /* Unified context diff */ 45#define D_IFDEF 4 /* Diff with merged #ifdef's */ 46#define D_NREVERSE 5 /* Reverse ed script with numbered 47 lines and no trailing . */ 48#define D_BRIEF 6 /* Say if the files differ */ 49 50/* 51 * Output flags 52 */ 53#define D_HEADER 0x001 /* Print a header/footer between files */ 54#define D_EMPTY1 0x002 /* Treat first file as empty (/dev/null) */ 55#define D_EMPTY2 0x004 /* Treat second file as empty (/dev/null) */ 56 57/* 58 * Command line flags 59 */ 60#define D_FORCEASCII 0x008 /* Treat file as ascii regardless of content */ 61#define D_FOLDBLANKS 0x010 /* Treat all white space as equal */ 62#define D_MINIMAL 0x020 /* Make diff as small as possible */ 63#define D_IGNORECASE 0x040 /* Case-insensitive matching */ 64#define D_PROTOTYPE 0x080 /* Display C function prototype */ 65#define D_EXPANDTABS 0x100 /* Expand tabs to spaces */ 66#define D_IGNOREBLANKS 0x200 /* Ignore white space changes */ 67 68/* 69 * Status values for print_status() and diffreg() return values 70 */ 71#define D_SAME 0 /* Files are the same */ 72#define D_DIFFER 1 /* Files are different */ 73#define D_BINARY 2 /* Binary files are different */ 74#define D_MISMATCH1 3 /* path1 was a dir, path2 a file */ 75#define D_MISMATCH2 4 /* path1 was a file, path2 a dir */ 76#define D_SKIPPED1 5 /* path1 was a special file */ 77#define D_SKIPPED2 6 /* path2 was a special file */ 78 79struct excludes { 80 char *pattern; 81 struct excludes *next; 82}; 83 84extern int Nflag, Pflag, rflag, sflag, Tflag; 85extern int diff_format, diff_context, status; 86extern char *start, *ifdefname, *diffargs, *label[2], *ignore_pats; 87extern struct stat stb1, stb2; 88extern struct excludes *excludes_list; 89extern regex_t ignore_re; 90 91char *splice(char *, char *); 92int diffreg(char *, char *, int); 93void diffdir(char *, char *, int); 94void print_only(const char *, size_t, const char *); 95void print_status(int, char *, char *, char *); 96