Kirbytext plugin for Kirby CMS to create <figure> wrapped blockquotes, with optional <figcaption>

Kirby CMS Figure Quote Plugin

<?php 
# ***Must be included as part of plugins/kirbytext.extend.php*** - Follow guidance here http://getkirby.com/blog/kirbytext
# Kirby CMS Figure Quote Plugin - Forked from https://gist.github.com/bastianallgeier/2924148#file-figure-php
# Blockquote markup best practice followed from http://alistapart.com/blog/post/more-thoughts-about-blockquotes-than-are-strictly-required
# Include in a post as follows (figquote: Example quotes need to be good ones. source: Mr Example)
/* Example CSS to target blockquote:
.blockquote {}
.blockquote p {}
.blockquote blockquote {}
.blockquote figcaption:before {content: "—";}
*/

/*
class kirbytextExtended extends kirbytext {
  
  function __construct($text=false, $markdown=true, $smartypants=true {
    
    parent::__construct($text, $markdown, $smartypants);
*/
    
    // define custom tags
    $this->addTags('figquote');
    // define custom attributes
    $this->addAttributes('source');
    
/* } */

	function figquote($params) {
	
		$html  = '<figure class="blockquote">';    
		
		if(!empty($params['figquote'])) {
		$html .= '<blockquote><p>' . $params['figquote'] . '</p></blockquote>';
			
			if(!empty($params['source'])) {
			$html .= '<figcaption>' . $params['source'] . '</figcaption>';       
			}
		
		}
		
		$html .= '</figure>';
		
		return $html;
	}
    
/* } */