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Viewing changes to lib/csharp/src/antlr/TokenStreamBasicFilter.cs

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2005-06-29 16:11:22 UTC
  • mfrom: (0.1.2 upstream)
  • Revision ID: james.westby@ubuntu.com-20050629161122-g81crc3z92p5xhsg
Tags: 2.7.5-6ubuntu4
Build depend on java-gcj-compat-dev, depend on java-gcj-compat.

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lib/csharp/src/antlr/TokenStreamBasicFilter.cs
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using System;
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using BitSet = antlr.collections.impl.BitSet;
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namespace antlr
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{
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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: $
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        */
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        //
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        // ANTLR C# Code Generator by Micheal Jordan
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        //                            Kunle Odutola       : kunle UNDERSCORE odutola AT hotmail DOT com
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        //                            Anthony Oguntimehin
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        //
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        // With many thanks to Eric V. Smith from the ANTLR list.
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        //
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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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        public class TokenStreamBasicFilter : TokenStream
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        {
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                /*The set of token types to discard */
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                protected internal BitSet discardMask;
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                /*The input stream */
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                protected internal TokenStream input;
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                public TokenStreamBasicFilter(TokenStream input)
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                {
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                        this.input = input;
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                        discardMask = new BitSet();
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                }
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                public virtual void  discard(int ttype)
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                {
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                        discardMask.add(ttype);
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                }
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                public virtual void  discard(BitSet mask)
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                {
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                        discardMask = mask;
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                }
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                public virtual Token nextToken()
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                {
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                        Token tok = input.nextToken();
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                        while (tok != null && discardMask.member(tok.Type))
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                        {
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                                tok = input.nextToken();
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                        }
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                        return tok;
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                }
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        }
 
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using System;
 
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using BitSet = antlr.collections.impl.BitSet;
 
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namespace antlr
 
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{
 
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        /*ANTLR Translator Generator
 
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        * Project led by Terence Parr at http://www.jGuru.com
 
8
        * Software rights: http://www.antlr.org/license.html
 
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        *
 
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        * $Id:$
 
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        */
 
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        //
 
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        // ANTLR C# Code Generator by Micheal Jordan
 
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        //                            Kunle Odutola       : kunle UNDERSCORE odutola AT hotmail DOT com
 
16
        //                            Anthony Oguntimehin
 
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        //
 
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        // With many thanks to Eric V. Smith from the ANTLR list.
 
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        //
 
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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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        public class TokenStreamBasicFilter : TokenStream
 
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        {
 
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                /*The set of token types to discard */
 
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                protected internal BitSet discardMask;
 
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                /*The input stream */
 
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                protected internal TokenStream input;
 
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                public TokenStreamBasicFilter(TokenStream input)
 
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                {
 
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                        this.input = input;
 
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                        discardMask = new BitSet();
 
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                }
 
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                public virtual void  discard(int ttype)
 
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                {
 
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                        discardMask.add(ttype);
 
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                }
 
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                public virtual void  discard(BitSet mask)
 
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                {
 
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                        discardMask = mask;
 
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                }
 
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                public virtual IToken nextToken()
 
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                {
 
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                        IToken tok = input.nextToken();
 
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                        while (tok != null && discardMask.member(tok.Type))
 
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                        {
 
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                                tok = input.nextToken();
 
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                        }
 
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                        return tok;
 
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                }
 
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        }
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}
 
 
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