| 1 | /* This file is part of the project "Hilbert II" - http://www.qedeq.org |
| 2 | * |
| 3 | * Copyright 2000-2014, Michael Meyling <mime@qedeq.org>. |
| 4 | * |
| 5 | * "Hilbert II" is free software; you can redistribute |
| 6 | * it and/or modify it under the terms of the GNU General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2 of the License, or (at your option) any later version. |
| 9 | * |
| 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 | } |