Andrew's git - gitweb.git/blob

   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#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/* merge simplification levels */
  54#define XDL_MERGE_MINIMAL 0
  55#define XDL_MERGE_EAGER 1
  56#define XDL_MERGE_ZEALOUS 2
  57#define XDL_MERGE_ZEALOUS_ALNUM 3
  58#define XDL_MERGE_LEVEL_MASK 0x0f
  59
  60/* merge output styles */
  61#define XDL_MERGE_DIFF3 0x8000
  62#define XDL_MERGE_STYLE_MASK 0x8000
  63
  64typedef struct s_mmfile {
  65        char *ptr;
  66        long size;
  67} mmfile_t;
  68
  69typedef struct s_mmbuffer {
  70        char *ptr;
  71        long size;
  72} mmbuffer_t;
  73
  74typedef struct s_xpparam {
  75        unsigned long flags;
  76} xpparam_t;
  77
  78typedef struct s_xdemitcb {
  79        void *priv;
  80        int (*outf)(void *, mmbuffer_t *, int);
  81} xdemitcb_t;
  82
  83typedef long (*find_func_t)(const char *line, long line_len, char *buffer, long buffer_size, void *priv);
  84
  85typedef struct s_xdemitconf {
  86        long ctxlen;
  87        unsigned long flags;
  88        find_func_t find_func;
  89        void *find_func_priv;
  90        void (*emit_func)();
  91} xdemitconf_t;
  92
  93typedef struct s_bdiffparam {
  94        long bsize;
  95} bdiffparam_t;
  96
  97
  98#define xdl_malloc(x) malloc(x)
  99#define xdl_free(ptr) free(ptr)
 100#define xdl_realloc(ptr,x) realloc(ptr,x)
 101
 102void *xdl_mmfile_first(mmfile_t *mmf, long *size);
 103void *xdl_mmfile_next(mmfile_t *mmf, long *size);
 104long xdl_mmfile_size(mmfile_t *mmf);
 105
 106int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
 107             xdemitconf_t const *xecfg, xdemitcb_t *ecb);
 108
 109int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1,
 110                mmfile_t *mf2, const char *name2,
 111                xpparam_t const *xpp, int level, mmbuffer_t *result);
 112
 113#ifdef __cplusplus
 114}
 115#endif /* #ifdef __cplusplus */
 116
 117#endif /* #if !defined(XDIFF_H) */