parsing * @file */ namespace MediaWiki\Extension\Math; use LogicException; use MediaWiki\Html\Html; /** * Takes LaTeX fragments and outputs the source directly to the browser * * @author Tomasz Wegrzanowski * @author Brion Vibber * @author Moritz Schubotz * @ingroup Parser */ class MathSource extends MathRenderer { /** * @param string $tex * @param array $params */ public function __construct( $tex = '', $params = [] ) { parent::__construct( $tex, $params ); $this->setMode( MathConfig::MODE_SOURCE ); } /** * Renders TeX by outputting it to the browser in a span tag * * @param bool $svg * @return string span tag with TeX */ public function getHtmlOutput( bool $svg = true ): string { # No need to render or parse anything more! # New lines are replaced with spaces, which avoids confusing our parser (bugs 23190, 22818) if ( $this->getMathStyle() == 'display' ) { $class = 'mwe-math-fallback-source-display'; } else { $class = 'mwe-math-fallback-source-inline'; } return Html::element( 'span', $this->getAttributes( 'span', [ // the former class name was 'tex' // for backwards compatibility we keep this classname T348938 'class' => $class . ' tex', 'dir' => 'ltr' ] ), '$ ' . str_replace( "\n", " ", $this->getTex() ) . ' $' ); } /** * @throws LogicException always * @return never */ protected function getMathTableName() { throw new LogicException( 'in math source mode no database caching should happen' ); } /** * No rendering required in plain text mode * @return bool */ public function render() { // assume unchanged to avoid unnecessary database access $this->changed = false; return true; } }