/***********************************************************************
 *
 *  Copyright (C) 2005-2006 Novell, Inc. All Rights Reserved.
 *
 *  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; version 2.1
 *  of the License.
 *
 *  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
 *  Library 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, Novell, Inc.
 *
 *  To contact Novell about this file by physical or electronic mail,
 *  you may find current contact information at www.novell.com.
 *
 ***********************************************************************/

#if ! defined ( NWDSFILT_H )
#define NWDSFILT_H

#if ! defined ( NTYPES_H )
#include "ntypes.h"
#endif

#if ! defined ( NWDSTYPE_H )
#include "nwdstype.h"
#endif

#if ! defined ( NWDSDC_H )   /* Need to defined NWDSContextHandle */
#include "nwdsdc.h"
#endif

#if ! defined ( NWDSBUFT_H ) /* Needed to defined pBuf_T   */
#include "nwdsbuft.h"
#endif

#include "npackon.h"

typedef struct _filter_node
{
   struct _filter_node  N_FAR *parent;
   struct _filter_node  N_FAR *left;
   struct _filter_node  N_FAR *right;
   nptr                       value;
   nuint32                    syntax;
   nuint16                    token;
} Filter_Node_T, N_FAR *pFilter_Node_T;

#define FTOK_END     0
#define FTOK_OR      1
#define FTOK_AND     2
#define FTOK_NOT     3
#define FTOK_LPAREN  4
#define FTOK_RPAREN  5
#define FTOK_AVAL    6
#define FTOK_EQ      7
#define FTOK_GE      8
#define FTOK_LE      9
#define FTOK_APPROX  10
#define FTOK_ANAME   14
#define FTOK_PRESENT 15
#define FTOK_RDN     16
#define FTOK_BASECLS 17
#define FTOK_MODTIME 18
#define FTOK_VALTIME 19

#define FBIT_END     (1L << FTOK_END)
#define FBIT_OR      (1L << FTOK_OR)
#define FBIT_AND     (1L << FTOK_AND)
#define FBIT_NOT     (1L << FTOK_NOT)
#define FBIT_LPAREN  (1L << FTOK_LPAREN)
#define FBIT_RPAREN  (1L << FTOK_RPAREN)
#define FBIT_AVAL    (1L << FTOK_AVAL)
#define FBIT_EQ      (1L << FTOK_EQ)
#define FBIT_GE      (1L << FTOK_GE)
#define FBIT_LE      (1L << FTOK_LE)
#define FBIT_APPROX  (1L << FTOK_APPROX)
#define FBIT_ANAME   (1L << FTOK_ANAME)
#define FBIT_PRESENT (1L << FTOK_PRESENT)
#define FBIT_RDN     (1L << FTOK_RDN)
#define FBIT_BASECLS (1L << FTOK_BASECLS)
#define FBIT_MODTIME (1L << FTOK_MODTIME)
#define FBIT_VALTIME (1L << FTOK_VALTIME)

#define FBIT_OPERAND (FBIT_LPAREN | FBIT_NOT | FBIT_PRESENT | FBIT_RDN \
         | FBIT_BASECLS | FBIT_ANAME | FBIT_MODTIME | FBIT_VALTIME)
#define FBIT_RELOP   (FBIT_EQ | FBIT_GE | FBIT_LE | FBIT_APPROX)
#define FBIT_BOOLOP  (FBIT_AND | FBIT_OR)

typedef struct
{
   pFilter_Node_T fn;
   nuint16        level;
   nuint32        expect;
} Filter_Cursor_T, N_FAR *pFilter_Cursor_T, N_FAR * N_FAR *ppFilter_Cursor_T;

#define FTAG_ITEM    0
#define FTAG_OR      1
#define FTAG_AND     2
#define FTAG_NOT     3


#ifdef __cplusplus
   extern "C" {
#endif

N_EXTERN_LIBRARY (NWDSCCODE)
NWDSAddFilterToken
(
   pFilter_Cursor_T  cur,
   nuint16           tok,
   nptr              val,
   nuint32           syntax
);

N_EXTERN_LIBRARY (NWDSCCODE)
NWDSAllocFilter
(
   ppFilter_Cursor_T cur
);

N_EXTERN_LIBRARY (void)
NWDSFreeFilter
(
   pFilter_Cursor_T  cur,
   void (N_FAR N_CDECL *freeVal)(nuint32 syntax, nptr val)
);

N_EXTERN_LIBRARY (NWDSCCODE)
NWDSPutFilter
(
   NWDSContextHandle       context,
   pBuf_T                  buf,
   pFilter_Cursor_T        cur,
   void (N_FAR N_CDECL *freeVal)(nuint32 syntax, nptr val)
);

N_EXTERN_LIBRARY (NWDSCCODE)
NWDSDelFilterToken
(
   pFilter_Cursor_T  cur,
   void (N_FAR N_CDECL *freeVal)(nuint32 syntax, nptr val)
);

#ifdef __cplusplus
   }
#endif

#include "npackoff.h"
#endif   /* NWDSFILT_H */