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.ProofVo;
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 a proposition.
26 *
27 * @version $Revision: 1.1 $
28 * @author Michael Meyling
29 */
30 public class ProofHandler extends AbstractSimpleHandler {
31
32 /** Handle informal proofs. */
33 private final LatexListHandler informalProofHandler;
34
35 /** Value object. */
36 private ProofVo proof;
37
38 /**
39 * Deals with propositions.
40 *
41 * @param handler Parent handler.
42 */
43 public ProofHandler(final AbstractSimpleHandler handler) {
44 super(handler, "PROOF");
45 informalProofHandler = new LatexListHandler(this, "PROOF");
46 }
47
48 public final void init() {
49 proof = null;
50 }
51
52 /**
53 * Get proof.
54 *
55 * @return Proof.
56 */
57 public final ProofVo getProof() {
58 return proof;
59 }
60
61 public final void startElement(final String name, final SimpleAttributes attributes)
62 throws XmlSyntaxException {
63 if (getStartTag().equals(name)) {
64 proof = new ProofVo();
65 proof.setKind(attributes.getString("kind"));
66 proof.setLevel(attributes.getString("level"));
67 changeHandler(informalProofHandler, name, attributes);
68 } else {
69 throw XmlSyntaxException.createUnexpectedTagException(name);
70 }
71 }
72
73 public final void endElement(final String name) throws XmlSyntaxException {
74 if (getStartTag().equals(name)) {
75 proof.setNonFormalProof(informalProofHandler.getLatexList());
76 } else {
77 throw XmlSyntaxException.createUnexpectedTagException(name);
78 }
79 }
80
81 }
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