/*

 *  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(XDIFFI_H)

#define XDIFFI_H

typedef struct s_diffdata {

	long nrec;

	unsigned long const *ha;

	long *rindex;

	char *rchg;

} diffdata_t;

typedef struct s_xdalgoenv {

	long mxcost;

	long snake_cnt;

	long heur_min;

} xdalgoenv_t;

typedef struct s_xdchange {

	struct s_xdchange *next;

	long i1, i2;

	long chg1, chg2;

	int ignore;

} xdchange_t;

int xdl_recs_cmp(diffdata_t *dd1, long off1, long lim1,

		 diffdata_t *dd2, long off2, long lim2,

		 long *kvdf, long *kvdb, int need_min, xdalgoenv_t *xenv);

int xdl_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,

		xdfenv_t *xe);

int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags);

int xdl_build_script(xdfenv_t *xe, xdchange_t **xscr);

void xdl_free_script(xdchange_t *xscr);

int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,

		  xdemitconf_t const *xecfg);

int xdl_do_patience_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,

		xdfenv_t *env);

int xdl_do_histogram_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,

		xdfenv_t *env);

#endif /* #if !defined(XDIFFI_H) */