4 1411938b 2018-02-12 stsp * Copyright (c) 1991, 1993
5 1411938b 2018-02-12 stsp * The Regents of the University of California. All rights reserved.
7 1411938b 2018-02-12 stsp * Redistribution and use in source and binary forms, with or without
8 1411938b 2018-02-12 stsp * modification, are permitted provided that the following conditions
10 1411938b 2018-02-12 stsp * 1. Redistributions of source code must retain the above copyright
11 1411938b 2018-02-12 stsp * notice, this list of conditions and the following disclaimer.
12 1411938b 2018-02-12 stsp * 2. Redistributions in binary form must reproduce the above copyright
13 1411938b 2018-02-12 stsp * notice, this list of conditions and the following disclaimer in the
14 1411938b 2018-02-12 stsp * documentation and/or other materials provided with the distribution.
15 1411938b 2018-02-12 stsp * 3. Neither the name of the University nor the names of its contributors
16 1411938b 2018-02-12 stsp * may be used to endorse or promote products derived from this software
17 1411938b 2018-02-12 stsp * without specific prior written permission.
19 1411938b 2018-02-12 stsp * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 1411938b 2018-02-12 stsp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 1411938b 2018-02-12 stsp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 1411938b 2018-02-12 stsp * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 1411938b 2018-02-12 stsp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 1411938b 2018-02-12 stsp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 1411938b 2018-02-12 stsp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 1411938b 2018-02-12 stsp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 1411938b 2018-02-12 stsp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 1411938b 2018-02-12 stsp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 1411938b 2018-02-12 stsp * SUCH DAMAGE.
31 1411938b 2018-02-12 stsp * @(#)diff.h 8.1 (Berkeley) 6/6/93
34 1411938b 2018-02-12 stsp #include <sys/types.h>
35 1411938b 2018-02-12 stsp #include <regex.h>
38 1411938b 2018-02-12 stsp * Output format options
40 1411938b 2018-02-12 stsp #define D_NORMAL 0 /* Normal output */
41 1411938b 2018-02-12 stsp #define D_EDIT -1 /* Editor script out */
42 1411938b 2018-02-12 stsp #define D_REVERSE 1 /* Reverse editor script */
43 1411938b 2018-02-12 stsp #define D_CONTEXT 2 /* Diff with context */
44 1411938b 2018-02-12 stsp #define D_UNIFIED 3 /* Unified context diff */
45 1411938b 2018-02-12 stsp #define D_IFDEF 4 /* Diff with merged #ifdef's */
46 1411938b 2018-02-12 stsp #define D_NREVERSE 5 /* Reverse ed script with numbered
47 1411938b 2018-02-12 stsp lines and no trailing . */
48 1411938b 2018-02-12 stsp #define D_BRIEF 6 /* Say if the files differ */
51 1411938b 2018-02-12 stsp * Output flags
53 1411938b 2018-02-12 stsp #define D_HEADER 0x001 /* Print a header/footer between files */
54 1411938b 2018-02-12 stsp #define D_EMPTY1 0x002 /* Treat first file as empty (/dev/null) */
55 1411938b 2018-02-12 stsp #define D_EMPTY2 0x004 /* Treat second file as empty (/dev/null) */
58 1411938b 2018-02-12 stsp * Command line flags
60 1411938b 2018-02-12 stsp #define D_FORCEASCII 0x008 /* Treat file as ascii regardless of content */
61 1411938b 2018-02-12 stsp #define D_FOLDBLANKS 0x010 /* Treat all white space as equal */
62 1411938b 2018-02-12 stsp #define D_MINIMAL 0x020 /* Make diff as small as possible */
63 1411938b 2018-02-12 stsp #define D_IGNORECASE 0x040 /* Case-insensitive matching */
64 1411938b 2018-02-12 stsp #define D_PROTOTYPE 0x080 /* Display C function prototype */
65 1411938b 2018-02-12 stsp #define D_EXPANDTABS 0x100 /* Expand tabs to spaces */
66 1411938b 2018-02-12 stsp #define D_IGNOREBLANKS 0x200 /* Ignore white space changes */
69 1411938b 2018-02-12 stsp * Status values for print_status() and diffreg() return values
71 1411938b 2018-02-12 stsp #define D_SAME 0 /* Files are the same */
72 1411938b 2018-02-12 stsp #define D_DIFFER 1 /* Files are different */
73 1411938b 2018-02-12 stsp #define D_BINARY 2 /* Binary files are different */
74 1411938b 2018-02-12 stsp #define D_MISMATCH1 3 /* path1 was a dir, path2 a file */
75 1411938b 2018-02-12 stsp #define D_MISMATCH2 4 /* path1 was a file, path2 a dir */
76 1411938b 2018-02-12 stsp #define D_SKIPPED1 5 /* path1 was a special file */
77 1411938b 2018-02-12 stsp #define D_SKIPPED2 6 /* path2 was a special file */
79 1411938b 2018-02-12 stsp struct excludes {
80 1411938b 2018-02-12 stsp char *pattern;
81 1411938b 2018-02-12 stsp struct excludes *next;
84 1411938b 2018-02-12 stsp struct got_diff_state {
85 1411938b 2018-02-12 stsp int *J; /* will be overlaid on class */
86 1411938b 2018-02-12 stsp int *class; /* will be overlaid on file[0] */
87 1411938b 2018-02-12 stsp int *klist; /* will be overlaid on file[0] after class */
88 1411938b 2018-02-12 stsp int *member; /* will be overlaid on file[1] */
90 1411938b 2018-02-12 stsp int inifdef; /* whether or not we are in a #ifdef block */
92 1411938b 2018-02-12 stsp int pref, suff; /* length of prefix and suffix */
93 1411938b 2018-02-12 stsp int slen[2];
94 1411938b 2018-02-12 stsp int anychange;
95 1411938b 2018-02-12 stsp long *ixnew; /* will be overlaid on file[1] */
96 1411938b 2018-02-12 stsp long *ixold; /* will be overlaid on klist */
97 1411938b 2018-02-12 stsp struct cand *clist; /* merely a free storage pot for candidates */
98 1411938b 2018-02-12 stsp int clistlen; /* the length of clist */
99 1411938b 2018-02-12 stsp struct line *sfile[2]; /* shortened by pruning common prefix/suffix */
100 1411938b 2018-02-12 stsp u_char *chrtran; /* translation table for case-folding */
101 1411938b 2018-02-12 stsp struct context_vec *context_vec_start;
102 1411938b 2018-02-12 stsp struct context_vec *context_vec_end;
103 1411938b 2018-02-12 stsp struct context_vec *context_vec_ptr;
104 1411938b 2018-02-12 stsp struct line *file[2];
105 1411938b 2018-02-12 stsp #define FUNCTION_CONTEXT_SIZE 55
106 1411938b 2018-02-12 stsp char lastbuf[FUNCTION_CONTEXT_SIZE];
107 1411938b 2018-02-12 stsp int lastline;
108 1411938b 2018-02-12 stsp int lastmatchline;
109 1411938b 2018-02-12 stsp struct stat stb1, stb2;
112 1411938b 2018-02-12 stsp struct got_diff_args {
114 1411938b 2018-02-12 stsp int diff_format, diff_context, status;
115 1411938b 2018-02-12 stsp char *ifdefname, *diffargs, *ignore_pats;
116 1411938b 2018-02-12 stsp const char *label[2];
119 1411938b 2018-02-12 stsp char *splice(char *, char *);
120 1411938b 2018-02-12 stsp const struct got_error *got_diffreg(int *, FILE *,
121 1411938b 2018-02-12 stsp FILE *, int, struct got_diff_args *, struct got_diff_state *, FILE *);
122 1411938b 2018-02-12 stsp int easprintf(char **, const char *, ...);
123 1411938b 2018-02-12 stsp void *emalloc(size_t);
124 1411938b 2018-02-12 stsp void *erealloc(void *, size_t);
125 1411938b 2018-02-12 stsp void diffdir(char *, char *, int);
126 1411938b 2018-02-12 stsp void print_only(const char *, size_t, const char *);
127 1411938b 2018-02-12 stsp void print_status(int, char *, char *, char *);
