1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/* Interface header file for GNU DIFF library.
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of GNU DIFF.
GNU DIFF is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU DIFF is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#ifndef DIFFRUN_H
#define DIFFRUN_H
/* This header file defines the interfaces used by the diff library.
It should be included by programs which use the diff library. */
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/* The diff_callbacks structure is used to handle callbacks from the
diff library. All output goes through these callbacks. When a
pointer to this structure is passed in, it may be NULL. Also, any
of the individual callbacks may be NULL. This means that the
default action should be taken. */
struct diff_callbacks
{
/* Write output. This function just writes a string of a given
length to the output file. The default is to fwrite to OUTFILE.
If this callback is defined, flush_output must also be defined.
If the length is zero, output zero bytes. */
void (*write_output)(char const *, size_t);
/* Flush output. The default is to fflush OUTFILE. If this
callback is defined, write_output must also be defined. */
void (*flush_output)();
/* Write a '\0'-terminated string to stdout.
This is called for version and help messages. */
void (*write_stdout)(char const *);
/* Print an error message. The first argument is a printf format,
and the next two are parameters. The default is to print a
message on stderr. */
void (*error)(char const *, char const *, char const *);
FILE *(*fopen)(const char *fn, const char *mode);
int (*open)(const char *fn, int mode, ...);
int (*stat)(const char *fn, struct stat *st);
};
/* Run a diff. */
int diff_run (int argc, char *argv[], const char *out, const struct diff_callbacks *callbacks_arg);
/* Run a diff3. */
int diff3_run (int argc, char **argv, const char *out, const struct diff_callbacks *callbacks_arg);
#ifdef __cplusplus
}
#endif
#endif /* DIFFRUN_H */
|
