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TokenStreamHiddenTokenFilter.hpp

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#ifndef INC_TokenStreamHiddenTokenFilter_hpp__
#define INC_TokenStreamHiddenTokenFilter_hpp__

/* ANTLR Translator Generator
 * Project led by Terence Parr at http://www.jGuru.com
 * Software rights: http://www.antlr.org/license.html
 *
 * $Id: TokenStreamHiddenTokenFilter.hpp,v 1.1 2004/10/08 16:27:34 dfisher Exp $
 */

#include <antlr/config.hpp>
#include <antlr/TokenStreamBasicFilter.hpp>

#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif

class ANTLR_API TokenStreamHiddenTokenFilter : public TokenStreamBasicFilter {
        // protected BitSet discardMask;
protected:
        BitSet hideMask;

private:
        RefToken nextMonitoredToken;

protected:
        RefToken lastHiddenToken;

        RefToken firstHidden; // = null;

public:
        TokenStreamHiddenTokenFilter(TokenStream& input);

protected:
        void consume();

private:
        void consumeFirst();

public:
        BitSet getDiscardMask() const;

        RefToken getHiddenAfter(RefToken t);

        RefToken getHiddenBefore(RefToken t);

        BitSet getHideMask() const;

        RefToken getInitialHiddenToken();

        void hide(int m);

        void hide(const BitSet& mask);

protected:
        RefToken LA(int i);

public:
        RefToken nextToken();
};

#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif

#endif //INC_TokenStreamHiddenTokenFilter_hpp__

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