| /* GnuParserDelegator.java -- The parser delegator which uses Swing DTD |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.javax.swing.text.html.parser; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.io.Serializable; |
| |
| import javax.swing.text.BadLocationException; |
| import javax.swing.text.html.HTMLEditorKit; |
| import javax.swing.text.html.HTMLEditorKit.ParserCallback; |
| import javax.swing.text.html.parser.DTD; |
| import javax.swing.text.html.parser.ParserDelegator; |
| import javax.swing.text.html.parser.TagElement; |
| |
| /** |
| * This parser delegator uses the different DTD ({@link HTML_401Swing}). |
| * It is derived from the ParserDelegator for the compatibility reasons. |
| * |
| * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) |
| */ |
| public class GnuParserDelegator extends ParserDelegator implements Serializable |
| { |
| class gnuParser |
| extends gnu.javax.swing.text.html.parser.support.Parser |
| { |
| private static final long serialVersionUID = 1; |
| |
| gnuParser(DTD d) |
| { |
| super(d); |
| } |
| |
| protected final void handleComment(char[] comment) |
| { |
| callBack.handleComment(comment, hTag.where.startPosition); |
| } |
| |
| protected final void handleEmptyTag(TagElement tag) |
| throws javax.swing.text.ChangedCharSetException |
| { |
| callBack.handleSimpleTag(tag.getHTMLTag(), getAttributes(), |
| hTag.where.startPosition |
| ); |
| } |
| |
| protected final void handleEndTag(TagElement tag) |
| { |
| callBack.handleEndTag(tag.getHTMLTag(), hTag.where.startPosition); |
| } |
| |
| protected final void handleError(int line, String message) |
| { |
| callBack.handleError(message, hTag.where.startPosition); |
| } |
| |
| protected final void handleStartTag(TagElement tag) |
| { |
| htmlAttributeSet attributes = gnu.getAttributes(); |
| |
| if (tag.fictional()) |
| attributes.addAttribute(ParserCallback.IMPLIED, Boolean.TRUE); |
| |
| callBack.handleStartTag(tag.getHTMLTag(), attributes, |
| hTag.where.startPosition |
| ); |
| } |
| |
| protected final void handleText(char[] text) |
| { |
| callBack.handleText(text, hTag.where.startPosition); |
| } |
| |
| DTD getDTD() |
| { |
| // Accessing the inherited gnu.javax.swing.text.html.parser.support.Parser |
| // field. super. is a workaround, required to support JDK1.3's javac. |
| return super.dtd; |
| } |
| } |
| |
| /** |
| * Use serialVersionUID for interoperability. |
| */ |
| private static final long serialVersionUID = -1276686502624777206L; |
| |
| private DTD theDtd; |
| |
| /** |
| * The callback. |
| * This is package-private to avoid an accessor method. |
| */ |
| HTMLEditorKit.ParserCallback callBack; |
| |
| /** |
| * The reference to the working class of HTML parser that is |
| * actually used to parse the document. |
| * This is package-private to avoid an accessor method. |
| */ |
| gnuParser gnu; |
| |
| /** |
| * Create the parser that uses the given DTD to parse the document. |
| * |
| * @param theDtd the DTD |
| */ |
| public GnuParserDelegator(DTD theDtd) |
| { |
| this.theDtd = theDtd; |
| gnu = new gnuParser(theDtd); |
| } |
| |
| /** |
| * Parses the HTML document, calling methods of the provided callback. This |
| * method must be multithread - safe. |
| * |
| * @param reader The reader to read the HTML document from |
| * @param a_callback The callback that is notifyed about the presence of HTML |
| * elements in the document. |
| * @param ignoreCharSet If thrue, any charset changes during parsing are |
| * ignored. |
| * @throws java.io.IOException |
| */ |
| public void parse(Reader reader, |
| HTMLEditorKit.ParserCallback a_callback, |
| boolean ignoreCharSet) throws IOException |
| { |
| callBack = a_callback; |
| gnu.parse(reader); |
| |
| callBack.handleEndOfLineString(gnu.getEndOfLineSequence()); |
| try |
| { |
| callBack.flush(); |
| } |
| catch (BadLocationException ex) |
| { |
| // Convert this into the supported type of exception. |
| throw new IOException(ex.getMessage()); |
| } |
| } |
| } |