xref: /openbsd-src/usr.bin/diff/diff.h (revision ce7279d89b71439c96c854f612f4ac93a461fdc4)
1*ce7279d8Sjsg /*	$OpenBSD: diff.h,v 1.35 2024/05/21 05:00:48 jsg Exp $	 */
2d0c3f575Sderaadt 
3abb4f62aSjcs /*
44ec4b3d5Smillert  * Copyright (c) 1991, 1993
54ec4b3d5Smillert  *	The Regents of the University of California.  All rights reserved.
6d0c3f575Sderaadt  *
7d0c3f575Sderaadt  * Redistribution and use in source and binary forms, with or without
8d0c3f575Sderaadt  * modification, are permitted provided that the following conditions
9d0c3f575Sderaadt  * are met:
104ec4b3d5Smillert  * 1. Redistributions of source code must retain the above copyright
114ec4b3d5Smillert  *    notice, this list of conditions and the following disclaimer.
12d0c3f575Sderaadt  * 2. Redistributions in binary form must reproduce the above copyright
13d0c3f575Sderaadt  *    notice, this list of conditions and the following disclaimer in the
14d0c3f575Sderaadt  *    documentation and/or other materials provided with the distribution.
154ec4b3d5Smillert  * 3. Neither the name of the University nor the names of its contributors
164ec4b3d5Smillert  *    may be used to endorse or promote products derived from this software
174ec4b3d5Smillert  *    without specific prior written permission.
18d0c3f575Sderaadt  *
194ec4b3d5Smillert  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
204ec4b3d5Smillert  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
214ec4b3d5Smillert  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
224ec4b3d5Smillert  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
234ec4b3d5Smillert  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
244ec4b3d5Smillert  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
254ec4b3d5Smillert  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
264ec4b3d5Smillert  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
274ec4b3d5Smillert  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
284ec4b3d5Smillert  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
294ec4b3d5Smillert  * SUCH DAMAGE.
304ec4b3d5Smillert  *
314ec4b3d5Smillert  *	@(#)diff.h	8.1 (Berkeley) 6/6/93
32d0c3f575Sderaadt  */
33d0c3f575Sderaadt 
34ccd55a2cSotto #include <sys/types.h>
35ccd55a2cSotto #include <regex.h>
36ccd55a2cSotto 
37ae8d569bSderaadt /*
38ae8d569bSderaadt  * Output format options
39ae8d569bSderaadt  */
40ae8d569bSderaadt #define	D_NORMAL	0	/* Normal output */
41ae8d569bSderaadt #define	D_EDIT		-1	/* Editor script out */
42ae8d569bSderaadt #define	D_REVERSE	1	/* Reverse editor script */
43ae8d569bSderaadt #define	D_CONTEXT	2	/* Diff with context */
44c42aed39Smillert #define	D_UNIFIED	3	/* Unified context diff */
45c42aed39Smillert #define	D_IFDEF		4	/* Diff with merged #ifdef's */
46c42aed39Smillert #define	D_NREVERSE	5	/* Reverse ed script with numbered
47ae8d569bSderaadt 				   lines and no trailing . */
48cab5d83cSmillert #define	D_BRIEF		6	/* Say if the files differ */
49ae8d569bSderaadt 
504ec4b3d5Smillert /*
514ec4b3d5Smillert  * Output flags
524ec4b3d5Smillert  */
53dba1d6eaSray #define	D_HEADER	0x001	/* Print a header/footer between files */
54dba1d6eaSray #define	D_EMPTY1	0x002	/* Treat first file as empty (/dev/null) */
55dba1d6eaSray #define	D_EMPTY2	0x004	/* Treat second file as empty (/dev/null) */
56dba1d6eaSray 
57dba1d6eaSray /*
58dba1d6eaSray  * Command line flags
59dba1d6eaSray  */
60dba1d6eaSray #define D_FORCEASCII	0x008	/* Treat file as ascii regardless of content */
61dba1d6eaSray #define D_FOLDBLANKS	0x010	/* Treat all white space as equal */
62dba1d6eaSray #define D_MINIMAL	0x020	/* Make diff as small as possible */
63dba1d6eaSray #define D_IGNORECASE	0x040	/* Case-insensitive matching */
64dba1d6eaSray #define D_PROTOTYPE	0x080	/* Display C function prototype */
65dba1d6eaSray #define D_EXPANDTABS	0x100	/* Expand tabs to spaces */
66dba1d6eaSray #define D_IGNOREBLANKS	0x200	/* Ignore white space changes */
67ae8d569bSderaadt 
68b4bca33fSmillert /*
69b4bca33fSmillert  * Status values for print_status() and diffreg() return values
70b4bca33fSmillert  */
71b4bca33fSmillert #define	D_SAME		0	/* Files are the same */
72b4bca33fSmillert #define	D_DIFFER	1	/* Files are different */
73b4bca33fSmillert #define	D_BINARY	2	/* Binary files are different */
7440e7295bSmillert #define	D_MISMATCH1	3	/* path1 was a dir, path2 a file */
7540e7295bSmillert #define	D_MISMATCH2	4	/* path1 was a file, path2 a dir */
7640e7295bSmillert #define	D_SKIPPED1	5	/* path1 was a special file */
7740e7295bSmillert #define	D_SKIPPED2	6	/* path2 was a special file */
78b4bca33fSmillert 
794ec4b3d5Smillert struct excludes {
804ec4b3d5Smillert 	char *pattern;
814ec4b3d5Smillert 	struct excludes *next;
824ec4b3d5Smillert };
834ec4b3d5Smillert 
8440e7295bSmillert extern int	Nflag, Pflag, rflag, sflag, Tflag;
8557003866Sray extern int	diff_format, diff_context, status;
867bdb251cSmillert extern char	*start, *ifdefname, *diffargs, *label[2], *ignore_pats;
874ec4b3d5Smillert extern struct	stat stb1, stb2;
884ec4b3d5Smillert extern struct	excludes *excludes_list;
89ccd55a2cSotto extern regex_t	ignore_re;
904ec4b3d5Smillert 
914ec4b3d5Smillert char	*splice(char *, char *);
92b4bca33fSmillert int	diffreg(char *, char *, int);
933f8e756bSray void	diffdir(char *, char *, int);
944893e147Smillert void	print_only(const char *, size_t, const char *);
95b4bca33fSmillert void	print_status(int, char *, char *, char *);
96