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HxRegParser.h

/*
 *  Copyright (c) 1998, University of Amsterdam, The Netherlands.
 *  All rights reserved.
 *
 *
 *  Author(s):
 *  Dennis Koelma (koelma@wins.uva.nl)
 *  Edo Poll (poll@wins.uva.nl)
 */

#ifndef HxRegParser_h
#define HxRegParser_h

#include "HxString.h"
#include "HxToken.h"
#include "HxRegData.h"

class HxCharReader;
class HxScanner;
class HxRegKey;
class HxRegistry;

class HxRegParser
{
public:
    static HxRegParser& instance();

    void                parse();

    void                setReader(HxCharReader&) const;
    void                setFileName(HxString fileName);

    void                setRegistry(HxRegistry&);

    int                 scan();

    void                messageHead();
    void                message(int tokNum);

    int                 lineNr() const;
    HxToken&            getToken();

    void                insertKey(HxString name);
    void                insertValue(HxString name, const HxRegData&);

private:
                        HxRegParser();
                        HxRegParser(const HxRegParser&);
    HxRegParser&        operator=(const HxRegParser&);

    HxString            _fileName;
    HxScanner*          _scanner;

    HxToken             _currentToken;
    int                 _holdToken;

    HxRegistry*         _registry;
    HxRegKey*           _currentKey;

    friend class HxRegParserFriend;
};

// Context needed for parser

extern void     regParse();
extern int      RegLsymb;
extern void     RegLmessage(int tokNum);

#endif

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