Use a *real* built-in diff generator
[git/git.git] / xdiff / xdiff.h
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1/*
2 * LibXDiff by Davide Libenzi ( File Differential Library )
3 * Copyright (C) 2003 Davide Libenzi
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 * Davide Libenzi <davidel@xmailserver.org>
20 *
21 */
22
23#if !defined(XDIFF_H)
24#define XDIFF_H
25
26#ifdef __cplusplus
27extern "C" {
28#endif /* #ifdef __cplusplus */
29
30
31#define XDF_NEED_MINIMAL (1 << 1)
32
33#define XDL_PATCH_NORMAL '-'
34#define XDL_PATCH_REVERSE '+'
35#define XDL_PATCH_MODEMASK ((1 << 8) - 1)
36#define XDL_PATCH_IGNOREBSPACE (1 << 8)
37
38#define XDL_MMB_READONLY (1 << 0)
39
40#define XDL_MMF_ATOMIC (1 << 0)
41
42#define XDL_BDOP_INS 1
43#define XDL_BDOP_CPY 2
44#define XDL_BDOP_INSB 3
45
46
47typedef struct s_mmfile {
48 char *ptr;
49 long size;
50} mmfile_t;
51
52typedef struct s_mmbuffer {
53 char *ptr;
54 long size;
55} mmbuffer_t;
56
57typedef struct s_xpparam {
58 unsigned long flags;
59} xpparam_t;
60
61typedef struct s_xdemitcb {
62 void *priv;
63 int (*outf)(void *, mmbuffer_t *, int);
64} xdemitcb_t;
65
66typedef struct s_xdemitconf {
67 long ctxlen;
68} xdemitconf_t;
69
70typedef struct s_bdiffparam {
71 long bsize;
72} bdiffparam_t;
73
74
75#define xdl_malloc(x) malloc(x)
76#define xdl_free(ptr) free(ptr)
77#define xdl_realloc(ptr,x) realloc(ptr,x)
78
79void *xdl_mmfile_first(mmfile_t *mmf, long *size);
80void *xdl_mmfile_next(mmfile_t *mmf, long *size);
81long xdl_mmfile_size(mmfile_t *mmf);
82
83int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
84 xdemitconf_t const *xecfg, xdemitcb_t *ecb);
85
86#ifdef __cplusplus
87}
88#endif /* #ifdef __cplusplus */
89
90#endif /* #if !defined(XDIFF_H) */
91