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//////////////////////////////////////////////////////////////////////////////
//Copyright 2008
// Andrew Gacek, Steven Holte, Gopalan Nadathur, Xiaochu Qi, Zach Snow
//////////////////////////////////////////////////////////////////////////////
// This file is part of Teyjus. //
// //
// Teyjus is free software: you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation, either version 3 of the License, or //
// (at your option) any later version. //
// //
// Teyjus 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 General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with Teyjus. If not, see <http://www.gnu.org/licenses/>. //
//////////////////////////////////////////////////////////////////////////////
/****************************************************************************
* *
* File io-datastructures.h. *
* *
****************************************************************************/
#ifndef IODATASTRUCTURES_H
#define IODATASTRUCTURES_H
#include "mcstring.h"
#include "dataformats.h"
#include "mctypes.h"
/*****************************************************************************
* A data structure for maintaining information about query term variables *
* and other free variables encountered in the course of displaying answers. *
*****************************************************************************/
/* number of entries in the table for such variables. */
#define IO_MAX_FREE_VARS 500
/* Structure of each entry in the table; display name, and the rigid
designator in the form of the memory cell corresponding to the variable are
maintained. */
typedef struct
{
DF_StrDataPtr varName;
DF_TermPtr rigdes;
} IO_FreeVarInfo;
/* The table itself */
extern IO_FreeVarInfo IO_freeVarTab[IO_MAX_FREE_VARS];
/* index for the topmost cell that has been used */
extern int IO_freeVarTabTop;
/* initialize */
void IO_initIO();
/* check if the free term variable table is full */
Boolean IO_freeVarTabFull(int incSize);
/* make an entry in the free term variable table */
void IO_enterFreeVarTab(DF_StrDataPtr name, DF_TermPtr varLoc);
#endif //IODATASTRUCTURES_H
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