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ConfigParser.h

/*****************************************************************************
 * Author:   Valient Gough <vgough@pobox.com>
 *
 *****************************************************************************
 * Copyright (c) 2001, Valient Gough
 *
 * This library is free software; you can distribute it and/or modify it under
 * the terms of the GNU Lesser General Public License (LGPL), 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 LGPL in the file COPYING for more
 * details.
 *
 */

#ifndef _ConfigParser_incl_
#define _ConfigParser_incl_

#include <rel/VMap.h>

#include <iostream>


// readFromFile is an external entry point for when librel-config is loaded as
// a plugin.  It reads a filename from the input stream and returns a VMapPtr.
extern "C"
rel::OpaqueValue readFromFile(const rel::TypeStream *);


namespace rel
{
    class ConfigParserLexer;

    class ConfigParser
    {
    public:
        ConfigParser(const SmartPtr<istream> &input);
        ConfigParser(const SmartPtr<istream> &input,
                ConfigParserLexer *lexer);
        virtual ~ConfigParser();

        static VMapPtr readFromFile(const string &filePath);

        VMapPtr parseStream();

        VMapPtr getCurrentDir();
        void setCurrentDir(const VMapPtr &dir);
        
        // creates and sets current dir
        virtual VMapPtr createNewDir();  
        
        
        int lex(const char *&stringResult);

    private:
        struct ConfigParserImpl *impl;
    };

} // namespace rel

#endif

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