/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.html.tidy;
import org.exoplatform.services.html.NodeConfig;
import org.exoplatform.services.html.Tag;
import org.exoplatform.services.html.parser.NodeImpl;
import org.exoplatform.services.token.TokenParser;
import org.exoplatform.services.token.TypeToken;
import java.util.ArrayList;
import java.util.List;
/**
* Created by The eXo Platform SARL
* Author : Nhu Dinh Thuan
* nhudinhthuan@exoplatform.com
* Jun 22, 2007
*/
public class HTMLTidy
{
private TokenParser tokenPaser;
public HTMLTidy()
{
tokenPaser = new TokenParser();
}
public synchronized List<String> check(char[] data)
{
List<String> listMsg = new ArrayList<String>();
TidyToken tokens = new TidyToken();
try
{
tokenPaser.createBeans(tokens, data);
}
catch (Exception e)
{
listMsg.add(e.toString());
return listMsg;
}
checkCloseElement(listMsg, tokens);
return listMsg;
}
final private void checkCloseElement(List<String> listMsg, TidyToken tokens)
{
if (!tokens.hasNext())
return;
List<NodeImpl> openNodes = new ArrayList<NodeImpl>();
while (tokens.hasNext())
{
NodeImpl temp = tokens.pop();
NodeConfig config = temp.getConfig();
if (config.end() == Tag.FORBIDDEN)
continue;
// System.out.println("==== > "+new String(temp.getValue()));
if (temp.getType() == TypeToken.TAG)
{
openNodes.add(temp);
continue;
}
if (openNodes.size() < 1)
{
listMsg.add("No open tag for close node </" + new String(temp.getValue()) + ">");
continue;
}
NodeImpl lastNode = openNodes.get(openNodes.size() - 1);
if (temp.getName() == lastNode.getName())
{
openNodes.remove(lastNode);
continue;
}
listMsg.add("Expect end tag for <" + new String(lastNode.getValue()) + ">, found </"
+ new String(temp.getValue()) + ">");
}
if (openNodes.size() > 0)
{
listMsg.add("No close tag node <" + new String(openNodes.get(openNodes.size() - 1).getValue()) + ">");
}
}
}