git/xdiff/xdiff.h

   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
  27 extern "C" {
  28 #endif /* #ifdef __cplusplus */
  29
  30
  31 #define XDF_NEED_MINIMAL (1 << 1)
  32 #define XDF_IGNORE_WHITESPACE (1 << 2)
  33 #define XDF_IGNORE_WHITESPACE_CHANGE (1 << 3)
  34 #define XDF_IGNORE_WHITESPACE_AT_EOL (1 << 4)
  35 #define XDF_WHITESPACE_FLAGS (XDF_IGNORE_WHITESPACE | XDF_IGNORE_WHITESPACE_CHANGE | XDF_IGNORE_WHITESPACE_AT_EOL)
  36
  37 #define XDL_PATCH_NORMAL '-'
  38 #define XDL_PATCH_REVERSE '+'
  39 #define XDL_PATCH_MODEMASK ((1 << 8) - 1)
  40 #define XDL_PATCH_IGNOREBSPACE (1 << 8)
  41
  42 #define XDL_EMIT_FUNCNAMES (1 << 0)
  43 #define XDL_EMIT_COMMON (1 << 1)
  44
  45 #define XDL_MMB_READONLY (1 << 0)
  46
  47 #define XDL_MMF_ATOMIC (1 << 0)
  48
  49 #define XDL_BDOP_INS 1
  50 #define XDL_BDOP_CPY 2
  51 #define XDL_BDOP_INSB 3
  52
  53 #define XDL_MERGE_MINIMAL 0
  54 #define XDL_MERGE_EAGER 1
  55 #define XDL_MERGE_ZEALOUS 2
  56
  57 typedef struct s_mmfile {
  58         char *ptr;
  59         long size;
  60 } mmfile_t;
  61
  62 typedef struct s_mmbuffer {
  63         char *ptr;
  64         long size;
  65 } mmbuffer_t;
  66
  67 typedef struct s_xpparam {
  68         unsigned long flags;
  69 } xpparam_t;
  70
  71 typedef struct s_xdemitcb {
  72         void *priv;
  73         int (*outf)(void *, mmbuffer_t *, int);
  74 } xdemitcb_t;
  75
  76 typedef long (*find_func_t)(const char *line, long line_len, char *buffer, long buffer_size, void *priv);
  77
  78 typedef struct s_xdemitconf {
  79         long ctxlen;
  80         unsigned long flags;
  81         find_func_t find_func;
  82         void *find_func_priv;
  83 } xdemitconf_t;
  84
  85 typedef struct s_bdiffparam {
  86         long bsize;
  87 } bdiffparam_t;
  88
  89
  90 #define xdl_malloc(x) malloc(x)
  91 #define xdl_free(ptr) free(ptr)
  92 #define xdl_realloc(ptr,x) realloc(ptr,x)
  93
  94 void *xdl_mmfile_first(mmfile_t *mmf, long *size);
  95 void *xdl_mmfile_next(mmfile_t *mmf, long *size);
  96 long xdl_mmfile_size(mmfile_t *mmf);
  97
  98 int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
  99              xdemitconf_t const *xecfg, xdemitcb_t *ecb);
 100
 101 int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1,
 102                 mmfile_t *mf2, const char *name2,
 103                 xpparam_t const *xpp, int level, mmbuffer_t *result);
 104
 105 #ifdef __cplusplus
 106 }
 107 #endif /* #ifdef __cplusplus */
 108
 109 #endif /* #if !defined(XDIFF_H) */