array( 'format' => array( 'type' => 'string', 'required' => false, 'default' => 'png' ), 'fontsize' => array( 'type' => 'int', 'required' => false, 'default' => 10 ), 'formuladensity' => array( 'type' => 'int', 'required' => false, 'default' => 120 ) ) ); } /*! Executes the PHP function for the operator cleanup and modifies \a $operatorValue. */ function modify( &$tpl, &$operatorName, &$operatorParameters, &$rootNamespace, &$currentNamespace, &$operatorValue, &$namedParameters ) { switch ( $operatorName ) { case 'latexrender': { //echo "

Using LatexRender

"; include_once('lib/ezutils/classes/ezsys.php'); include_once('extension/latex/lib/class.latexrender.php'); //Initialise caches and prepare to call the latex render class $picture_dir = realpath(eZSys::cacheDirectory()).eZSys::fileSeparator().'latex'; //echo "Picture dir:"; //echo $picture_dir; $apache_dir = eZSys::fileSeparator().eZSys::cacheDirectory().eZSys::fileSeparator().'latex'; $picture_tmp_dir = realpath(eZSys::cacheDirectory()).eZSys::fileSeparator().'latex_tmp'; foreach (array($picture_dir,$picture_tmp_dir) as $cachedir) { //echo $cachedir; if ( !file_exists( $cachedir )) { eZDir::mkdir($cachedir); } } //make a new LatexRender object whoch wil do the actual work $latex = new LatexRender($picture_dir,$apache_dir,$picture_tmp_dir); $latex->_image_format = $namedParameters['format']; $latex->_font_size = $namedParameters['fontsize']; $latex->_formula_density = $namedParameters['formuladensity']; $latex->_extraname=md5(serialize($namedParameters)); //Should do some more cleanup actually, but here we go $url = $latex->getFormulaURL($operatorValue); //echo $url; //returns the URL to the png image $operatorValue = $url; } break; } } } ?>