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#ifndef INC_TokenStreamBasicFilter_hpp__
#define INC_TokenStreamBasicFilter_hpp__
/* ANTLR Translator Generator
* Project led by Terence Parr at http://www.jGuru.com
* Software rights: http://www.antlr.org/license.html
*
* $Id$
*/
#include <antlr/config.hpp>
#include <antlr/BitSet.hpp>
#include <antlr/TokenStream.hpp>
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
/** This object is a TokenStream that passes through all
* tokens except for those that you tell it to discard.
* There is no buffering of the tokens.
*/
class ANTLR_API TokenStreamBasicFilter : public TokenStream {
/** The set of token types to discard */
protected:
BitSet discardMask;
/** The input stream */
protected:
TokenStream* input;
public:
TokenStreamBasicFilter(TokenStream& input_);
void discard(int ttype);
void discard(const BitSet& mask);
RefToken nextToken();
};
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif
#endif //INC_TokenStreamBasicFilter_hpp__
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