fatbase

portable OpenBSD tools
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diff.h (4084B)


      1 /*	$OpenBSD: diff.h,v 1.32 2009/06/07 08:39:13 ray 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_COMMON	3	/* Subdirectory common to both dirs */
     75 #define	D_ONLY		4	/* Only exists in one directory */
     76 #define	D_MISMATCH1	5	/* path1 was a dir, path2 a file */
     77 #define	D_MISMATCH2	6	/* path1 was a file, path2 a dir */
     78 #define	D_ERROR		7	/* An error occurred */
     79 #define	D_SKIPPED1	8	/* path1 was a special file */
     80 #define	D_SKIPPED2	9	/* path2 was a special file */
     81 
     82 struct excludes {
     83 	char *pattern;
     84 	struct excludes *next;
     85 };
     86 
     87 extern int	lflag, Nflag, Pflag, rflag, sflag, Tflag;
     88 extern int	diff_format, diff_context, status;
     89 extern char	*start, *ifdefname, *diffargs, *label[2], *ignore_pats;
     90 extern struct	stat stb1, stb2;
     91 extern struct	excludes *excludes_list;
     92 extern regex_t	ignore_re;
     93 
     94 char	*splice(char *, char *);
     95 int	diffreg(char *, char *, int);
     96 int	easprintf(char **, const char *, ...);
     97 void	*emalloc(size_t);
     98 void	*erealloc(void *, size_t);
     99 void	diffdir(char *, char *, int);
    100 void	print_only(const char *, size_t, const char *);
    101 void	print_status(int, char *, char *, char *);