1 files changed, 46 insertions, 0 deletions
diff --git a/lib/antlr/antlr/TokenStreamBasicFilter.h b/lib/antlr/antlr/TokenStreamBasicFilter.h
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index 00000000..51862169
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+++ b/lib/antlr/antlr/TokenStreamBasicFilter.h
@@ -0,0 +1,46 @@
+#ifndef INC_TokenStreamBasicFilter_h__
+#define INC_TokenStreamBasicFilter_h__
+
+/* 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.h>
+#include <antlr/BitSet.h>
+#include <antlr/TokenStream.h>
+
+#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_h__