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Support Chinese character (both Simplified and Tranditional) to most popular Pinyin systems, including Hanyu Pinyin, Tongyong Pinyin, Wade-Giles, MPS2, Yale and Gwoyeu Romatzyh. Support multiple pronounciations and customized output.

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package com.hp.hpl.sparta.xpath;

/**
 * Add functionality to subclasses of BooleanExpr.  This is a participant
 * in the Visitor Pattern [Gamma et al, #331].  You pass a visitor to
 * the XPath.accept method which then passes it to all the nodes on
 * the parse tree, each one of which calls back one of the visitor's
 * visit methods.

  Copyright (C) 2002 Hewlett-Packard Company.
 This file is part of Sparta, an XML Parser, DOM, and XPath library.
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU
 Lesser General Public License as published by the Free Software
 Foundation; either version 2.1 of the License, or (at your option)
 any later version.  This library is distributed in the hope that it
 will be useful, but WITHOUT ANY WARRANTY; without even the implied
 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE. 
 @version  $Date: 2002/12/05 04:34:38 $  $Revision: 1.4 $
 @author Eamonn O'Brien-Strain
 * @stereotype visitor
 */
public interface BooleanExprVisitor {

  void visit(TrueExpr a);

  void visit(AttrExistsExpr a) throws XPathException;

  void visit(AttrEqualsExpr a) throws XPathException;

  void visit(AttrNotEqualsExpr a) throws XPathException;

  void visit(AttrLessExpr a) throws XPathException;

  void visit(AttrGreaterExpr a) throws XPathException;

  void visit(TextExistsExpr a) throws XPathException;

  void visit(TextEqualsExpr a) throws XPathException;

  void visit(TextNotEqualsExpr a) throws XPathException;

  void visit(PositionEqualsExpr a) throws XPathException;
}