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HxSadParser.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 HxSadParser_h
#define HxSadParser_h

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

#include "HxSyntaxLeafNode.h"
#include "HxSyntaxBranchNode.h"

class HxCharReader;
class HxScanner;

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

    void                parse();

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

    int                 scan();
    HxToken&            peek(int n = 0);

    HxBool              isConstructor();

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

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

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

    friend class HxSadParserFriend;

    HxString            _fileName;
    HxScanner*          _scanner;

    HxToken             _currentToken;
    int                 _holdToken;
};

inline HxString
HxSadParser::getFileName() const { return _fileName; }

// Context needed for parser

extern void     sadParse();
extern int      SadLsymb;
extern void     SadLmessage(int tokNum);

#endif

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