// HTMLParser Library $Name: v1_6_20060319 $ - A java-based parser for HTML
// http://sourceforge.org/projects/htmlparser
// Copyright (C) 2004 Somik Raha
//
// Revision Control Information
//
// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/tags/BaseHrefTag.java,v $
// $Author: derrickoswald $
// $Date: 2005/04/10 23:20:45 $
// $Revision: 1.40 $
//
// 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. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
package org.htmlparser.tags;
import org.htmlparser.lexer.Page;
import org.htmlparser.nodes.TagNode;
import org.htmlparser.util.ParserException;
/**
* BaseHrefTag represents an <Base> tag.
* It extends a basic tag by providing an accessor to the HREF attribute.
*/
public class BaseHrefTag
extends
TagNode
{
/**
* The set of names handled by this tag.
*/
private static final String[] mIds = new String[] {"BASE"};
/**
* Create a new base tag.
*/
public BaseHrefTag ()
{
}
/**
* Return the set of names handled by this tag.
* @return The names to be matched that create tags of this type.
*/
public String[] getIds ()
{
return (mIds);
}
/**
* Get the value of the <code>HREF</code> attribute, if any.
* @return The <code>HREF</code> value, with the leading and trailing whitespace removed, if any.
*/
public String getBaseUrl()
{
String base;
base = getAttribute ("HREF");
if (base != null && base.length() > 0)
base = base.trim ();
base = (null == base) ? "" : base;
return (base);
}
/**
* Set the value of the <code>HREF</code> attribute.
* @param base The new <code>HREF</code> value.
*/
public void setBaseUrl (String base)
{
setAttribute ("HREF", base);
}
/**
* Perform the meaning of this tag.
* This sets the base URL to use for the rest of the page.
* @exception ParserException If setting the base URL fails.
*/
public void doSemanticAction () throws ParserException
{
Page page;
page = getPage ();
if (null != page)
page.setBaseUrl (getBaseUrl ());
}
}