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jcs   Initial import of Amend through Amend! Latest amendment: 1 on 2021-10-19

1 /* $OpenBSD: diff.h,v 1.34 2020/11/01 18:16:08 jcs 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 <stddef.h>
35
36 /*
37 * Output format options
38 */
39 #define D_NORMAL 0 /* Normal output */
40 #define D_EDIT -1 /* Editor script out */
41 #define D_REVERSE 1 /* Reverse editor script */
42 #define D_CONTEXT 2 /* Diff with context */
43 #define D_UNIFIED 3 /* Unified context diff */
44 #define D_IFDEF 4 /* Diff with merged #ifdef's */
45 #define D_NREVERSE 5 /* Reverse ed script with numbered
46 lines and no trailing . */
47 #define D_BRIEF 6 /* Say if the files differ */
48
49 /*
50 * Output flags
51 */
52 #define D_HEADER 0x001 /* Print a header/footer between files */
53 #define D_EMPTY1 0x002 /* Treat first file as empty (/dev/null) */
54 #define D_EMPTY2 0x004 /* Treat second file as empty (/dev/null) */
55
56 /*
57 * Command line flags
58 */
59 #define D_FORCEASCII 0x008 /* Treat file as ascii regardless of content */
60 #define D_FOLDBLANKS 0x010 /* Treat all white space as equal */
61 #define D_MINIMAL 0x020 /* Make diff as small as possible */
62 #define D_IGNORECASE 0x040 /* Case-insensitive matching */
63 #define D_PROTOTYPE 0x080 /* Display C function prototype */
64 #define D_EXPANDTABS 0x100 /* Expand tabs to spaces */
65 #define D_IGNOREBLANKS 0x200 /* Ignore white space changes */
66
67 /*
68 * Status values for print_status() and diffreg() return values
69 */
70 #define D_SAME 0 /* Files are the same */
71 #define D_DIFFER 1 /* Files are different */
72 #define D_BINARY 2 /* Binary files are different */
73 #define D_MISMATCH1 3 /* path1 was a dir, path2 a file */
74 #define D_MISMATCH2 4 /* path1 was a file, path2 a dir */
75 #define D_SKIPPED1 5 /* path1 was a special file */
76 #define D_SKIPPED2 6 /* path2 was a special file */
77
78 extern short quitting;
79 extern long diff_format, diff_context, status;
80 extern char *ifdefname, *diffargs, *label[2], *ignore_pats;
81 extern struct stat stb1, stb2;
82
83 char *splice(char *, char *);
84 int diffreg(char *, char *, int);
85 void diffdir(char *, char *, int);
86
87 size_t diff_output(const char *, ...);