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-rw-r--r--runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreePatternLexer.cs162
1 files changed, 0 insertions, 162 deletions
diff --git a/runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreePatternLexer.cs b/runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreePatternLexer.cs
deleted file mode 100644
index e742205..0000000
--- a/runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreePatternLexer.cs
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * [The "BSD licence"]
- * Copyright (c) 2005-2008 Terence Parr
- * All rights reserved.
- *
- * Conversion to C#:
- * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-namespace Antlr.Runtime.Tree
-{
- using StringBuilder = System.Text.StringBuilder;
-
- public class TreePatternLexer
- {
- public const int Begin = 1;
- public const int End = 2;
- public const int Id = 3;
- public const int Arg = 4;
- public const int Percent = 5;
- public const int Colon = 6;
- public const int Dot = 7;
-
- /** <summary>The tree pattern to lex like "(A B C)"</summary> */
- protected string pattern;
-
- /** <summary>Index into input string</summary> */
- protected int p = -1;
-
- /** <summary>Current char</summary> */
- protected int c;
-
- /** <summary>How long is the pattern in char?</summary> */
- protected int n;
-
- /** <summary>Set when token type is ID or ARG (name mimics Java's StreamTokenizer)</summary> */
- public StringBuilder sval = new StringBuilder();
-
- public bool error = false;
-
- public TreePatternLexer( string pattern )
- {
- this.pattern = pattern;
- this.n = pattern.Length;
- Consume();
- }
-
- public virtual int NextToken()
- {
- sval.Length = 0; // reset, but reuse buffer
- while ( c != CharStreamConstants.EndOfFile )
- {
- if ( c == ' ' || c == '\n' || c == '\r' || c == '\t' )
- {
- Consume();
- continue;
- }
- if ( ( c >= 'a' && c <= 'z' ) || ( c >= 'A' && c <= 'Z' ) || c == '_' )
- {
- sval.Append( (char)c );
- Consume();
- while ( ( c >= 'a' && c <= 'z' ) || ( c >= 'A' && c <= 'Z' ) ||
- ( c >= '0' && c <= '9' ) || c == '_' )
- {
- sval.Append( (char)c );
- Consume();
- }
- return Id;
- }
- if ( c == '(' )
- {
- Consume();
- return Begin;
- }
- if ( c == ')' )
- {
- Consume();
- return End;
- }
- if ( c == '%' )
- {
- Consume();
- return Percent;
- }
- if ( c == ':' )
- {
- Consume();
- return Colon;
- }
- if ( c == '.' )
- {
- Consume();
- return Dot;
- }
- if ( c == '[' )
- {
- // grab [x] as a string, returning x
- Consume();
- while ( c != ']' )
- {
- if ( c == '\\' )
- {
- Consume();
- if ( c != ']' )
- {
- sval.Append( '\\' );
- }
- sval.Append( (char)c );
- }
- else
- {
- sval.Append( (char)c );
- }
- Consume();
- }
- Consume();
- return Arg;
- }
- Consume();
- error = true;
- return CharStreamConstants.EndOfFile;
- }
- return CharStreamConstants.EndOfFile;
- }
-
- protected virtual void Consume()
- {
- p++;
- if ( p >= n )
- {
- c = CharStreamConstants.EndOfFile;
- }
- else
- {
- c = pattern[p];
- }
- }
- }
-}