for help screens
			          // because these are actually formatted to rely on
			          // the monospaced font for layout purposes
?>
mDisabled ) {
			return;
		}
		if ( $this->getIsHtml() ) {
?>




mDisabled ) {
			return;
		}
		if ( $this->mBufferResult ) {
			$this->mBuffer = $text;
		} elseif ( $this->getIsHtml() ) {
			echo $this->formatHTML( $text );
		} else {
			// For non-HTML output, clear all errors that might have been
			// displayed if display_errors=On
			// Do this only once, of course
			if ( !$this->mCleared ) {
				ob_clean();
				$this->mCleared = true;
			}
			echo $text;
		}
	}

	/**
	 * Get the contents of the buffer.
	 */
	public function getBuffer() {
		return $this->mBuffer;
	}

	/**
	 * Set the flag to buffer the result instead of printing it.
	 * @param $value bool
	 */
	public function setBufferResult( $value ) {
		$this->mBufferResult = $value;
	}

	/**
	 * Sets whether the pretty-printer should format *bold*
	 * @param $help bool
	 */
	public function setHelp( $help = true ) {
		$this->mHelp = $help;
	}

	/**
	 * Pretty-print various elements in HTML format, such as xml tags and
	 * URLs. This method also escapes characters like <
	 * @param $text string
	 * @return string
	 */
	protected function formatHTML( $text ) {
		// Escape everything first for full coverage
		$text = htmlspecialchars( $text );
		// encode all comments or tags as safe blue strings
		$text = str_replace( '<', '<', $text );
		$text = str_replace( '>', '>', $text );
		// identify requests to api.php
		$text = preg_replace( "#api\\.php\\?[^ <\n\t]+#", '\\0', $text );
		if ( $this->mHelp ) {
			// make strings inside * bold
			$text = preg_replace( "#\\*[^<>\n]+\\*#", '\\0', $text );
		}
		// identify URLs
		$protos = wfUrlProtocolsWithoutProtRel();
		// This regex hacks around bug 13218 (" included in the URL)
		$text = preg_replace( "#(((?i)$protos).*?)(")?([ \\'\"<>\n]|<|>|")#", '\\1\\3\\4', $text );

		/**
		 * Temporary fix for bad links in help messages. As a special case,
		 * XML-escaped metachars are de-escaped one level in the help message
		 * for legibility. Should be removed once we have completed a fully-HTML
		 * version of the help message.
		 */
		if ( $this->mUnescapeAmps ) {
			$text = preg_replace( '/&(amp|quot|lt|gt);/', '&\1;', $text );
		}

		return $text;
	}

	public function getExamples() {
		return array(
			'api.php?action=query&meta=siteinfo&siprop=namespaces&format=' . $this->getModuleName()
				=> "Format the query result in the {$this->getModuleName()} format",
		);
	}

	public function getHelpUrls() {
		return 'https://www.mediawiki.org/wiki/API:Data_formats';
	}

	public function getDescription() {
		return $this->getIsHtml() ? ' (pretty-print in HTML)' : '';
	}
}

/**
 * This printer is used to wrap an instance of the Feed class
 * @ingroup API
 */
class ApiFormatFeedWrapper extends ApiFormatBase {

	public function __construct( $main ) {
		parent::__construct( $main, 'feed' );
	}

	/**
	 * Call this method to initialize output data. See execute()
	 * @param $result ApiResult
	 * @param $feed object an instance of one of the $wgFeedClasses classes
	 * @param array $feedItems of FeedItem objects
	 */
	public static function setResult( $result, $feed, $feedItems ) {
		// Store output in the Result data.
		// This way we can check during execution if any error has occurred
		// Disable size checking for this because we can't continue
		// cleanly; size checking would cause more problems than it'd
		// solve
		$result->disableSizeCheck();
		$result->addValue( null, '_feed', $feed );
		$result->addValue( null, '_feeditems', $feedItems );
		$result->enableSizeCheck();
	}

	/**
	 * Feed does its own headers
	 *
	 * @return null
	 */
	public function getMimeType() {
		return null;
	}

	/**
	 * Optimization - no need to sanitize data that will not be needed
	 *
	 * @return bool
	 */
	public function getNeedsRawData() {
		return true;
	}

	/**
	 * This class expects the result data to be in a custom format set by self::setResult()
	 * $result['_feed']		- an instance of one of the $wgFeedClasses classes
	 * $result['_feeditems']	- an array of FeedItem instances
	 */
	public function execute() {
		$data = $this->getResultData();
		if ( isset( $data['_feed'] ) && isset( $data['_feeditems'] ) ) {
			$feed = $data['_feed'];
			$items = $data['_feeditems'];

			$feed->outHeader();
			foreach ( $items as & $item ) {
				$feed->outItem( $item );
			}
			$feed->outFooter();
		} else {
			// Error has occurred, print something useful
			ApiBase::dieDebug( __METHOD__, 'Invalid feed class/item' );
		}
	}
}