summaryrefslogtreecommitdiff
path: root/xdiff/xdiff.h
blob: 33c010b1f117154501a3043d2328fd0b2517204e (plain)
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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/*
 *  LibXDiff by Davide Libenzi ( File Differential Library )
 *  Copyright (C) 2003  Davide Libenzi
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Davide Libenzi <davidel@xmailserver.org>
 *
 */
 
#if !defined(XDIFF_H)
#define XDIFF_H
 
#ifdef __cplusplus
extern "C" {
#endif /* #ifdef __cplusplus */
 
 
#define XDF_NEED_MINIMAL (1 << 1)
#define XDF_IGNORE_WHITESPACE (1 << 2)
#define XDF_IGNORE_WHITESPACE_CHANGE (1 << 3)
#define XDF_IGNORE_WHITESPACE_AT_EOL (1 << 4)
#define XDF_WHITESPACE_FLAGS (XDF_IGNORE_WHITESPACE | XDF_IGNORE_WHITESPACE_CHANGE | XDF_IGNORE_WHITESPACE_AT_EOL)
 
#define XDF_PATIENCE_DIFF (1 << 5)
#define XDF_HISTOGRAM_DIFF (1 << 6)
#define XDF_DIFF_ALGORITHM_MASK (XDF_PATIENCE_DIFF | XDF_HISTOGRAM_DIFF)
#define XDF_DIFF_ALG(x) ((x) & XDF_DIFF_ALGORITHM_MASK)
 
#define XDL_EMIT_FUNCNAMES (1 << 0)
#define XDL_EMIT_COMMON (1 << 1)
#define XDL_EMIT_FUNCCONTEXT (1 << 2)
 
#define XDL_MMB_READONLY (1 << 0)
 
#define XDL_MMF_ATOMIC (1 << 0)
 
#define XDL_BDOP_INS 1
#define XDL_BDOP_CPY 2
#define XDL_BDOP_INSB 3
 
/* merge simplification levels */
#define XDL_MERGE_MINIMAL 0
#define XDL_MERGE_EAGER 1
#define XDL_MERGE_ZEALOUS 2
#define XDL_MERGE_ZEALOUS_ALNUM 3
 
/* merge favor modes */
#define XDL_MERGE_FAVOR_OURS 1
#define XDL_MERGE_FAVOR_THEIRS 2
#define XDL_MERGE_FAVOR_UNION 3
 
/* merge output styles */
#define XDL_MERGE_DIFF3 1
 
typedef struct s_mmfile {
	char *ptr;
	long size;
} mmfile_t;
 
typedef struct s_mmbuffer {
	char *ptr;
	long size;
} mmbuffer_t;
 
typedef struct s_xpparam {
	unsigned long flags;
} xpparam_t;
 
typedef struct s_xdemitcb {
	void *priv;
	int (*outf)(void *, mmbuffer_t *, int);
} xdemitcb_t;
 
typedef long (*find_func_t)(const char *line, long line_len, char *buffer, long buffer_size, void *priv);
 
typedef int (*xdl_emit_hunk_consume_func_t)(long start_a, long count_a,
					    long start_b, long count_b,
					    void *cb_data);
 
typedef struct s_xdemitconf {
	long ctxlen;
	long interhunkctxlen;
	unsigned long flags;
	find_func_t find_func;
	void *find_func_priv;
	void (*emit_func)();
	xdl_emit_hunk_consume_func_t hunk_func;
} xdemitconf_t;
 
typedef struct s_bdiffparam {
	long bsize;
} bdiffparam_t;
 
 
#define xdl_malloc(x) malloc(x)
#define xdl_free(ptr) free(ptr)
#define xdl_realloc(ptr,x) realloc(ptr,x)
 
void *xdl_mmfile_first(mmfile_t *mmf, long *size);
long xdl_mmfile_size(mmfile_t *mmf);
 
int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
	     xdemitconf_t const *xecfg, xdemitcb_t *ecb);
 
typedef struct s_xmparam {
	xpparam_t xpp;
	int marker_size;
	int level;
	int favor;
	int style;
	const char *ancestor;	/* label for orig */
	const char *file1;	/* label for mf1 */
	const char *file2;	/* label for mf2 */
} xmparam_t;
 
#define DEFAULT_CONFLICT_MARKER_SIZE 7
 
int xdl_merge(mmfile_t *orig, mmfile_t *mf1, mmfile_t *mf2,
		xmparam_t const *xmp, mmbuffer_t *result);
 
#ifdef __cplusplus
}
#endif /* #ifdef __cplusplus */
 
#endif /* #if !defined(XDIFF_H) */