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/*
Copyright (C) 2004-2010 Christian Wieninger
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
The author can be reached at cwieninger@gmx.de
The project's page is at http://winni.vdr-developer.org/epgsearch
*/
#ifndef __VAR_PARSER_INC__
#define __VAR_PARSER_INC__
#include <string>
#include <vector>
#include <vdr/config.h>
#include "epgsearchtools.h"
using std::string;
using std::vector;
typedef enum
{
condEq = 0,
condNeq
} condOperator;
class cVarParser
{
typedef enum
{
composed=0,
condition,
shellcmd,
connectcmd,
lengthcmd
} exprType;
public:
string varName;
string condEqLeft;
string condEqRight;
condOperator condOp;
string condvarTrue;
string condvarFalse;
string compExpr;
cCommand* cmd;
string cmdArgs;
string connectAddr;
int connectPort;
exprType type;
cVarParser() : cmd(NULL), connectPort(-1), type(composed) {}
bool Parse(const string& input);
bool ParseExp(const string& input);
bool IsCondExpr();
bool IsShellCmd();
bool IsConnectCmd();
bool IsLengthCmd();
private:
bool ParseAssign(const string& input);
bool ParseShellCmd(const string& input);
bool ParseConnectCmd(const string& input);
bool ParseLengthCmd(const string& input);
bool ParseCondExp(const string& input);
bool ParseEquality(const string& input);
bool ParseVar(const string& input);
};
#endif
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