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tim |
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#ifndef INC_TokenStreamBasicFilter_hpp__ |
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#define INC_TokenStreamBasicFilter_hpp__ |
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/* ANTLR Translator Generator |
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* Project led by Terence Parr at http://www.jGuru.com |
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* Software rights: http://www.antlr.org/license.html |
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* |
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* $Id: TokenStreamBasicFilter.hpp,v 1.1 2005-12-02 15:38:02 tim Exp $ |
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*/ |
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#include <antlr/config.hpp> |
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#include <antlr/BitSet.hpp> |
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#include <antlr/TokenStream.hpp> |
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#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE |
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namespace antlr { |
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#endif |
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/** This object is a TokenStream that passes through all |
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* tokens except for those that you tell it to discard. |
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* There is no buffering of the tokens. |
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*/ |
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class ANTLR_API TokenStreamBasicFilter : public TokenStream { |
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/** The set of token types to discard */ |
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protected: |
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BitSet discardMask; |
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/** The input stream */ |
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protected: |
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TokenStream* input; |
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public: |
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TokenStreamBasicFilter(TokenStream& input_); |
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void discard(int ttype); |
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void discard(const BitSet& mask); |
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RefToken nextToken(); |
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}; |
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#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE |
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} |
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#endif |
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#endif //INC_TokenStreamBasicFilter_hpp__ |