ModeCatalogHandler.java :  » Swing-Library » jEdit-4.3.1 » org » gjt » sp » jedit » Java Open Source

/*
 * ModeCatalogHandler.java - XML handler for mode catalog files
 * Copyright (C) 2000, 2001 Slava Pestov
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package org.gjt.sp.jedit;

//{{{ Imports
import org.gjt.sp.jedit.syntax.ModeProvider;
import org.gjt.sp.util.Log;
import org.gjt.sp.util.XMLUtilities;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.helpers.DefaultHandler;
//}}}

/**
 * @author Slava Pestov
 */
class ModeCatalogHandler extends DefaultHandler
{
  //{{{ ModeCatalogHandler constructor
  ModeCatalogHandler(String directory, boolean resource)
  {
    this.directory = directory;
    this.resource = resource;
  } //}}}

  //{{{ resolveEntity() method
  public InputSource resolveEntity(String publicId, String systemId)
  {
    return XMLUtilities.findEntity(systemId, "catalog.dtd", getClass());
  } //}}}

  //{{{ startElement() method
  public void startElement(String uri, String localName,
               String qName, Attributes attrs)
  {
    if (qName.equals("MODE"))
    {
      String modeName = attrs.getValue("NAME");

      String file = attrs.getValue("FILE");
      if(file == null)
      {
        Log.log(Log.ERROR,this,directory + "catalog:"
          + " mode " + modeName + " doesn't have"
          + " a FILE attribute");
      }

      String filenameGlob = attrs.getValue("FILE_NAME_GLOB");
      String firstlineGlob = attrs.getValue("FIRST_LINE_GLOB");


      Mode mode = ModeProvider.instance.getMode(modeName);
      if(mode == null)
      {
        mode = instantiateMode(modeName);
        ModeProvider.instance.addMode(mode);
      }

      Object path;
      if(resource)
        path = jEdit.class.getResource(directory + file);
      else
        path = MiscUtilities.constructPath(directory,file);
      mode.setProperty("file",path);

      if(filenameGlob != null)
        mode.setProperty("filenameGlob",filenameGlob);
      else
        mode.unsetProperty("filenameGlob");

      if(firstlineGlob != null)
        mode.setProperty("firstlineGlob",firstlineGlob);
      else
        mode.unsetProperty("firstlineGlob");

      mode.init();
    }
  } //}}}

  protected Mode instantiateMode(String modeName)
  {
    return new Mode(modeName);
  }

  private String directory;
  private boolean resource;

}