01 /* This file is part of the project "Hilbert II" - http://www.qedeq.org
02 *
03 * Copyright 2000-2011, Michael Meyling <mime@qedeq.org>.
04 *
05 * "Hilbert II" is free software; you can redistribute
06 * it and/or modify it under the terms of the GNU General Public
07 * License as published by the Free Software Foundation; either
08 * version 2 of the License, or (at your option) any later version.
09 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 package org.qedeq.kernel.xml.handler.module;
17
18 import org.qedeq.kernel.se.dto.module.LatexVo;
19 import org.qedeq.kernel.xml.common.XmlSyntaxException;
20 import org.qedeq.kernel.xml.handler.common.AbstractSimpleHandler;
21 import org.qedeq.kernel.xml.handler.common.SimpleAttributes;
22
23
24 /**
25 * Parse header informations.
26 *
27 * @version $Revision: 1.1 $
28 * @author Michael Meyling
29 */
30 public class LatexHandler extends AbstractSimpleHandler {
31
32 /** Text language. */
33 private String language;
34
35 /** LaTeX text. */
36 private LatexVo latex;
37
38 /** Character data. */
39 private String data;
40
41
42 /**
43 * Handles LaTeX tags.
44 *
45 * @param handler Handler that uses this handler.
46 * @param startTag This is the starting tag.
47 */
48 public LatexHandler(final AbstractSimpleHandler handler, final String startTag) {
49 super(handler, startTag);
50 }
51
52 public final void init() {
53 latex = null;
54 }
55
56 /**
57 * Get parsed result.
58 *
59 * @return LaTeX text part.
60 */
61 public final LatexVo getLatex() {
62 return latex;
63 }
64
65 public final void startElement(final String name, final SimpleAttributes attributes)
66 throws XmlSyntaxException {
67 if (getStartTag().equals(name)) {
68 // ignore
69 } else if ("LATEX".equals(name)) {
70 this.data = null;
71 language = attributes.getString("language");
72 } else {
73 throw XmlSyntaxException.createUnexpectedTagException(name);
74 }
75 }
76
77 public void endElement(final String name) throws XmlSyntaxException {
78 if (getStartTag().equals(name)) {
79 // ignore
80 } else if ("LATEX".equals(name)) {
81 latex = new LatexVo(language, data);
82 } else {
83 throw XmlSyntaxException.createUnexpectedTagException(name);
84 }
85 }
86
87 public void characters(final String name, final String data) throws XmlSyntaxException {
88 if (getStartTag().equals(name)) {
89 // ignore
90 } else if ("LATEX".equals(name)) {
91 this.data = data;
92 } else {
93 throw XmlSyntaxException.createUnexpectedTextDataException(name, data);
94 }
95 }
96
97 }
|