/* "CodeWorker":	a scripting language for parsing and generating text.

Copyright (C) 1996-1997, 1999-2002 Cédric Lemaire

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

To contact the author: codeworker@free.fr
*/

#ifdef WIN32
#pragma warning (disable : 4786)
#endif

#include "ExprScriptVariable.h"
#include "BNFClause.h"
#include "DtaVisitor.h"
#include "BNFStepper.h"

namespace CodeWorker {
	BNFStepper::BNFStepper(DtaBNFScript* pBNFScript, GrfBlock* pParent, bool bContinue) : _pBNFScript(pBNFScript), GrfBlock(pParent), _pVariableToAssign(NULL), _bContinue(bContinue), _iClauseReturnType(BNFClause::NO_RETURN_TYPE), _iStepLocation(0), _bConcatVariable(false) {}

	BNFStepper::~BNFStepper() {
		delete _pVariableToAssign;
	}

	void BNFStepper::accept(DtaVisitor& visitor, DtaVisitorEnvironment& env) {
		visitor.visitBNFStepper(*this, env);
	}

	bool BNFStepper::isABNFCommand() const { return true; }

	void BNFStepper::setVariableToAssign(ExprScriptVariable* pVariableToAssign, bool bConcat, BNFClause& theClause) {
		if (pVariableToAssign != NULL) {
			_pVariableToAssign = pVariableToAssign;
			std::string sVariableName = _pVariableToAssign->toString();
			if (sVariableName == theClause.getName()) _iClauseReturnType = theClause.getReturnType();
			_bConcatVariable = bConcat;
		}
	}
}