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/*
* CustomTokenManager.java
*
* comments here.
*
* @author Michiaki Tatsubori
* @version %VERSION% %DATE%
* @see java.lang.Object
*
* COPYRIGHT 1998 by Michiaki Tatsubori, ALL RIGHTS RESERVED.
*/
package io.devnulllabs.openjava.tools.parser;
import io.devnulllabs.openjava.mop.Environment;
import io.devnulllabs.openjava.syntax.TokenSource;
/**
* The class <code>CustomTokenManager</code>
* <p>
* For example
* <pre>
* </pre>
* <p>
*
* @author Michiaki Tatsubori
* @version 1.0
* @since $Id: CustomTokenManager.java,v 1.2 2003/02/19 02:55:01 tatsubori Exp $
* @see java.lang.Object
*/
public final class CustomTokenManager
extends ParserTokenManager
implements TokenSource
{
private Parser parser;
private Environment env;
int pointer = 0;
int offset = 0;
public CustomTokenManager( Parser parser, Environment env ) {
super( null );
this.parser = parser;
this.env = env;
}
public Environment getEnvironment() {
return env;
}
public void assume() { offset = pointer; }
public void restore() { pointer = offset; }
public void fix() {
for (int i = offset; i < pointer; ++i) {
parser.getNextToken();
}
pointer = 0; offset = 0;
}
public Token getNextToken() {
return parser.getToken( ++pointer );
}
public Token getToken( int i ) {
return parser.getToken( pointer + i );
}
}
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