uk.ac.ed.ph.snuggletex.dombuilding.LineBreakHandler Maven / Gradle / Ivy

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/* $Id: LineBreakHandler.java 525 2010-01-05 14:07:36Z davemckain $
 *
 * Copyright (c) 2010, The University of Edinburgh.
 * All Rights Reserved
 */
package uk.ac.ed.ph.snuggletex.dombuilding;

import uk.ac.ed.ph.snuggletex.internal.DOMBuilder;
import uk.ac.ed.ph.snuggletex.tokens.CommandToken;

import org.w3c.dom.Element;

/**
 * Handles instances of \\\\, which forces a line break at the given point.
 *
 * @author David McKain
 * @version $Revision: 525 $
 */
public final class LineBreakHandler implements CommandHandler {

  public void handleCommand(DOMBuilder builder, Element parentElement, CommandToken token) {
    if (builder.isBuildingMathMLIsland()) {
      /* We're doing MathML. It appears that we the best thing to do is emit the
       * actual line feed character (U+000A) and leave it to MathML UA's to interpret.
       */
      builder.appendMathMLTextElement(parentElement, "mtext", Character.toString((char) 10), false);
    } else {
      /* It's XHTML. We just emit 
 as usual */
      builder.appendXHTMLElement(parentElement, "br");
    }
  }
}