src/Scanner.h

/* $Id$ */

#ifndef __SCANNER_H__
#define __SCANNER_H__

// Flex expects the signature of yylex to be defined in the macro YY_DECL, and
// the C++ parser expects it to be declared. We can factor both as follows.

#ifndef YY_DECL

#define YY_DECL      \
    mgf::Parser::token_type    \
    mgf::Scanner::lex(    \
 mgf::Parser::semantic_type* yylval,  \
 mgf::Parser::location_type* yylloc  \
    )
#endif

#ifndef __FLEX_LEXER_H
#define yyFlexLexer MgfFlexLexer
#include "FlexLexer.h"
#undef yyFlexLexer
#endif

#include "Parser.h"

namespace mgf
{

class MGFP_EXPORT Scanner : public MgfFlexLexer
{
public:
    Scanner(std::istream* arg_yyin = 0,
            std::ostream* arg_yyout = 0);

    virtual ~Scanner();

    virtual Parser::token_type lex(
        Parser::semantic_type* yylval,
        Parser::location_type* yylloc
    );

    void set_debug(bool b);
};

} // namespace mgf

#endif 

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