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secondo/Tools/NestedLists/NLParser.h
2026-01-23 17:03:45 +08:00

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/*
----
This file is part of SECONDO.
Copyright (C) 2004, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO 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 2 of the License, or
(at your option) any later version.
SECONDO 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 SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
*/
#ifndef NL_PARSER_H
#define NL_PARSER_H
#include "NestedList.h"
class NLParser
{
public:
NLParser( NestedList* nestedList,
std::istream* ip = 0,
std::ostream* op = 0 )
:
list(0),
isp( ip ),
osp( op ),
yaccnl( nestedList )
{}
virtual ~NLParser() {};
int parse();
ListExpr GetNestedList() { return list; }
private:
ListExpr list; // the constructed memory structure
// of a nested list
std::istream* isp; // istream being parsed
std::ostream* osp; // ostream being output to
NestedList* yaccnl; // reference to the global NestedList instance
};
#endif