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/* Crimson Fields - a game of tactical warfare
Copyright (C) 2000-2007 Jens Granseuer
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _ED_INCLUDE_PARSER_H
#define _ED_INCLUDE_PARSER_H
#include <iostream>
#include <fstream>
#include <string>
#include <map>
#include <vector>
#include <utility>
using namespace std;
// callback when a section has been successfully parsed
class SectionParsedCallback {
public:
virtual ~SectionParsedCallback( void ) {}
virtual void SectionParsed( const string §ion,
class SectionHandler &handler,
class CFParser &parser ) = 0;
};
// class that handles parsing of a section type, e.g. [unit]
class SectionHandler {
public:
SectionHandler( void ) : enabled(true) {}
virtual ~SectionHandler( void ) {}
virtual int ParseSection( ifstream &in, const string *opt, unsigned long &line ) = 0;
void SetEnabled( bool flag ) { enabled = flag; }
bool Enabled( void ) const { return enabled; }
protected:
void RemWhitespace( string &s ) const;
int StrToNum( const string &s ) const;
bool enabled;
};
class CFParser {
public:
CFParser( void ) : hook(0) {}
~CFParser( void );
int Parse( const string &file );
void AddHandler( const string §ion, SectionHandler *handler );
void EnableHandler( const string §ion, bool enabled );
void SetCallback( SectionParsedCallback *cb ) { hook = cb; }
static void RemWhitespace( string &s );
static int StrToNum( const string &s );
private:
const pair<string, string> ParseSectionHeader( const string &s );
map<const string, SectionHandler *> handlers;
SectionParsedCallback *hook;
};
// section handler subclass for parsing key/value pairs
class KeyValueSectionHandler : public SectionHandler {
public:
KeyValueSectionHandler( void ) {}
virtual ~KeyValueSectionHandler( void ) {}
virtual int ParseSection( ifstream &in, const string *opt, unsigned long &line );
protected:
vector<pair<string, string> > pairs;
};
#endif /* _ED_INCLUDE_PARSER_H */
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