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/*
 * $Header: /l/extreme/cvs/codes/XPP3/java/src/java/xpath/org/xmlpull/v1/builder/xpath/saxpath/Axis.java,v 1.2 2005/08/11 22:44:02 aslom Exp $
 * $Revision: 1.2 $
 * $Date: 2005/08/11 22:44:02 $
 *
 * ====================================================================
 *
 * Copyright (C) 2000-2002 werken digital.
 * 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 disclaimer that follows 
 *    these conditions in the documentation and/or other materials 
 *    provided with the distribution.
 *
 * 3. The name "SAXPath" must not be used to endorse or promote products
 *    derived from this software without prior written permission.  For
 *    written permission, please contact [email protected].
 * 
 * 4. Products derived from this software may not be called "SAXPath", nor
 *    may "SAXPath" appear in their name, without prior written permission
 *    from the SAXPath Project Management ([email protected]).
 * 
 * In addition, we request (but do not require) that you include in the 
 * end-user documentation provided with the redistribution and/or in the 
 * software itself an acknowledgement equivalent to the following:
 *     "This product includes software developed by the
 *      SAXPath Project (http://www.saxpath.org/)."
 * Alternatively, the acknowledgment may be graphical using the logos 
 * available at http://www.saxpath.org/
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 SAXPath AUTHORS OR THE PROJECT
 * CONTRIBUTORS 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.
 *
 * ====================================================================
 * This software consists of voluntary contributions made by many 
 * individuals on behalf of the SAXPath Project and was originally 
 * created by bob mcwhirter  and 
 * James Strachan .  For more information on the 
 * SAXPath Project, please see .
 * 
 * $Id: Axis.java,v 1.2 2005/08/11 22:44:02 aslom Exp $
 */



package org.xmlpull.v1.builder.xpath.saxpath;

public class Axis
{
    /** Marker for an invalid axis */
    public final static int INVALID_AXIS       =  0;

    /** The child axis */
    public final static int CHILD              =  1;

    /** The descendant axis */
    public final static int DESCENDANT         =  2;

    /** The parent axis */
    public final static int PARENT             =  3;

    /** The ancestor axis */
    public final static int ANCESTOR           =  4;

    /** The following-sibling axis */
    public final static int FOLLOWING_SIBLING  =  5;

    /** The preceding-sibling axis */
    public final static int PRECEDING_SIBLING  =  6;

    /** The following axis */
    public final static int FOLLOWING          =  7;

    /** The preceding axis */
    public final static int PRECEDING          =  8;

    /** The attribute axis */
    public final static int ATTRIBUTE          =  9;

    /** The namespace axis */
    public final static int NAMESPACE          = 10;

    /** The self axis */
    public final static int SELF               = 11;

    /** The descendant-or-self axis */
    public final static int DESCENDANT_OR_SELF = 12;

    /** The ancestor-or-self axis */
    public final static int ANCESTOR_OR_SELF   = 13;

    public static String lookup(int axisNum)
    {
        switch ( axisNum )
        {
            case CHILD:
                return "child";

            case DESCENDANT:
                return "descendant";

            case PARENT:
                return "parent";

            case ANCESTOR:
                return "ancestor";

            case FOLLOWING_SIBLING:
                return "following-sibling";

            case PRECEDING_SIBLING:
                return "preceding-sibling";

            case FOLLOWING:
                return "following";

            case PRECEDING:
                return "preceding";

            case ATTRIBUTE:
                return "attribute";

            case NAMESPACE:
                return "namespace";

            case SELF:
                return "self";

            case DESCENDANT_OR_SELF:
                return "descendant-or-self";

            case ANCESTOR_OR_SELF:
                return "ancestor-or-self";
        }

        return null;
    }

    public static int lookup(String axisName)
    {
        if ( "child".equals( axisName ) )
        {
            return CHILD;
        }

        if ( "descendant".equals( axisName ) )
        {
            return DESCENDANT;
        }

        if ( "parent".equals( axisName ) )
        {
            return PARENT;
        }

        if ( "ancestor".equals( axisName ) )
        {
            return ANCESTOR;
        }

        if ( "following-sibling".equals( axisName ) )
        {
            return FOLLOWING_SIBLING;
        }

        if ( "preceding-sibling".equals( axisName ) )
        {
            return PRECEDING_SIBLING;
        }

        if ( "following".equals( axisName ) )
        {
            return FOLLOWING;
        }

        if ( "preceding".equals( axisName ) )
        {
            return PRECEDING;
        }

        if ( "attribute".equals( axisName ) )
        {
            return ATTRIBUTE;
        }

        if ( "namespace".equals( axisName ) )
        {
            return NAMESPACE;
        }

        if ( "self".equals( axisName ) )
        {
            return SELF;
        }

        if ( "descendant-or-self".equals( axisName ) )
        {
            return DESCENDANT_OR_SELF;
        }

        if ( "ancestor-or-self".equals( axisName ) )
        {
            return ANCESTOR_OR_SELF;
        }

        return INVALID_AXIS;
    }
}