/* $OpenBSD: diff.h,v 1.34 2020/11/01 18:16:08 jcs Exp $ */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/types.h> #include <stdbool.h> #include <regex.h> /* * Output format options */ #define D_NORMAL 0 /* Normal output */ #define D_EDIT -1 /* Editor script out */ #define D_REVERSE 1 /* Reverse editor script */ #define D_CONTEXT 2 /* Diff with context */ #define D_UNIFIED 3 /* Unified context diff */ #define D_IFDEF 4 /* Diff with merged #ifdef's */ #define D_NREVERSE 5 /* Reverse ed script with numbered lines and no trailing . */ #define D_BRIEF 6 /* Say if the files differ */ #define D_GFORMAT 7 /* Diff with defined changed group format */ #define D_SIDEBYSIDE 8 /* Side by side */ #define D_UNSET -2 /* * Algorithms */ #define D_DIFFNONE 0 #define D_DIFFSTONE 1 /* Stone or 'old diff' algorithm */ #define D_DIFFMYERS 2 /* Myers diff algorithm */ #define D_DIFFPATIENCE 3 /* Patience diff algorithm */ /* * Output flags */ #define D_HEADER 0x001 /* Print a header/footer between files */ #define D_EMPTY1 0x002 /* Treat first file as empty (/dev/null) */ #define D_EMPTY2 0x004 /* Treat second file as empty (/dev/null) */ /* * Command line flags */ #define D_FORCEASCII 0x008 /* Treat file as ascii regardless of content */ #define D_FOLDBLANKS 0x010 /* Treat all white space as equal */ #define D_MINIMAL 0x020 /* Make diff as small as possible */ #define D_IGNORECASE 0x040 /* Case-insensitive matching */ #define D_PROTOTYPE 0x080 /* Display C function prototype */ #define D_EXPANDTABS 0x100 /* Expand tabs to spaces */ #define D_IGNOREBLANKS 0x200 /* Ignore white space changes */ #define D_STRIPCR 0x400 /* Strip trailing cr */ #define D_SKIPBLANKLINES 0x800 /* Skip blank lines */ #define D_MATCHLAST 0x1000 /* Display last line matching provided regex */ #define D_PAGINATION 0x2000 /* Paginate via pr(1) */ /* Features supported by new algorithms */ #define D_NEWALGO_FLAGS (D_FORCEASCII | D_PROTOTYPE | D_IGNOREBLANKS) /* * Status values for print_status() and diffreg() return values */ #define D_SAME 0 /* Files are the same */ #define D_DIFFER 1 /* Files are different */ #define D_BINARY 2 /* Binary files are different */ #define D_MISMATCH1 3 /* path1 was a dir, path2 a file */ #define D_MISMATCH2 4 /* path1 was a file, path2 a dir */ #define D_SKIPPED1 5 /* path1 was a special file */ #define D_SKIPPED2 6 /* path2 was a special file */ #define D_ERROR 7 /* A file access error occurred */ /* * Color options */ #define COLORFLAG_NEVER 0 #define COLORFLAG_AUTO 1 #define COLORFLAG_ALWAYS 2 struct excludes { char *pattern; struct excludes *next; }; extern bool lflag, Nflag, Pflag, rflag, sflag, Tflag, cflag; extern bool ignore_file_case, suppress_common, color, noderef, algorithm_set; extern int diff_format, diff_context, diff_algorithm, status; extern bool diff_algorithm_set; extern int tabsize, width; extern char *start, *ifdefname, *diffargs, *label[2]; extern char *ignore_pats, *most_recent_pat; extern char *group_format; extern const char *add_code, *del_code; extern struct stat stb1, stb2; extern struct excludes *excludes_list; extern regex_t ignore_re, most_recent_re; int diffreg(char *, char *, int, int); int diffreg_new(char *, char *, int, int); bool can_libdiff(int); void diffdir(char *, char *, int); void print_status(int, char *, char *, const char *);
