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/* MoverParser.java
* =========================================================================
* This file is part of the JMathTeX Library - http://jmathtex.sourceforge.net
*
* Copyright (C) 2004-2007 Universiteit Gent
*
* 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 (at
* your option) 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
package be.ugent.caagt.jmathtex.mathml;
import java.util.List;
import org.jdom.Element;
import be.ugent.caagt.jmathtex.JMathTeXException;
import be.ugent.caagt.jmathtex.TeXFormula;
class MoverParser extends PresentationElementParser {
private static final String ACCENT = "accent";
public TeXFormula buildFormula(Element el, Environment env)
throws MathMLException {
List formulas = MathMLParser.getFormulaList(el.getChildren(), env);
if (formulas.size() != 2)
throw new MathMLException("mover needs exactly 2 child elements!");
// construct formula
try {
return new TeXFormula().addAcc((TeXFormula) formulas.get(0),
((TeXFormula) formulas.get(1)));
} catch (JMathTeXException e) { // use other methods
// get element attribute value
String accent = el.getAttributeValue(ACCENT);
// if attribute value not set, use environment value if set
if (accent == null)
accent = env.get(ACCENT);
if (accent != null && accent.equals("true"))
// units are guaranteed to be valid
return ((TeXFormula) formulas.get(0)).putUnderAndOver(null,
ACC_LIM_UNIT, 0, false, (TeXFormula) formulas.get(1), ACC_LIM_UNIT,
ACC_SPACE, false);
else if (accent == null || accent.equals("false")) // default
return new TeXFormula().addOp((TeXFormula) formulas.get(0), null,
(TeXFormula) formulas.get(1), true);
else
throw new MathMLException(
"Invalid attribute value for 'accent' : '" + accent + "'!", e);
}
}
}
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