/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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/*

 * Copyright (C) 2004-2011

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

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 * THE SOFTWARE.

 */

package com.sun.xml.internal.rngom.binary.visitor;

import com.sun.xml.internal.rngom.binary.Pattern;

import com.sun.xml.internal.rngom.nc.NameClass;

/**

 * Walks the pattern tree.

 *

 * @author

 *      Kohsuke Kawaguchi (kk@kohsuke.org)

 */

public class PatternWalker implements PatternVisitor {

    public void visitEmpty() {

    }

    public void visitNotAllowed() {

    }

    public void visitError() {

    }

    public void visitGroup(Pattern p1, Pattern p2) {

        visitBinary(p1, p2);

    }

    protected void visitBinary(Pattern p1, Pattern p2) {

        p1.accept(this);

        p2.accept(this);

    }

    public void visitInterleave(Pattern p1, Pattern p2) {

        visitBinary(p1, p2);

    }

    public void visitChoice(Pattern p1, Pattern p2) {

        visitBinary(p1, p2);

    }

    public void visitOneOrMore(Pattern p) {

        p.accept(this);

    }

    public void visitElement(NameClass nc, Pattern content) {

        content.accept(this);

    }

    public void visitAttribute(NameClass ns, Pattern value) {

        value.accept(this);

    }

    public void visitData(Datatype dt) {

    }

    public void visitDataExcept(Datatype dt, Pattern except) {

    }

    public void visitValue(Datatype dt, Object obj) {

    }

    public void visitText() {

    }

    public void visitList(Pattern p) {

        p.accept(this);

    }

    public void visitAfter(Pattern p1, Pattern p2) {

    }

}