added function properxhtml() for better readability

syntax.php

<?php
/********************************************************************************************************************************
*
* Dokuwiki Infobox
*
* www.github.com/xube/dokuwiki-infobox
* www.triglaw.sk
* www.drop.sk
*
/*******************************************************************************************************************************/
  
// must be run within DokuWiki
if(!defined('DOKU_INC')) die();
// if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
 
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');
 
/********************************************************************************************************************************
* All DokuWiki plugins to extend the parser/rendering mechanism
* need to inherit from this class
********************************************************************************************************************************/
class syntax_plugin_infobox extends DokuWiki_Syntax_Plugin {
    
    /* REGEX PATTERNS */
    protected $entry_pattern   	= '<infobox>\n.*?(?=.*</infobox>)';
    protected $row_pattern 		= '\|.*?(?=.*?)\n';
    protected $exit_pattern    	= '</infobox>';
    protected $special_pattern 	= '<div\b[^>\r\n]*?/>'; //\|.*?(?=.*?)\n

    function getType(){ return 'formatting';}
    function getAllowedTypes() { return array('container', 'formatting', 'substition', 'protected', 'disabled', 'paragraphs'); }
    function getPType(){ return 'stack';}
    function getSort(){ return 195; }
    // override default accepts() method to allow nesting - ie, to get the plugin accepts its own entry syntax
    // function accepts($mode) {
    //     if ($mode == substr(get_class($this), 7)) return true;
    //     return parent::accepts($mode);
    // }
  
    public function connectTo($mode) {
    	$this->Lexer->addSpecialPattern($this->special_pattern,$mode,'plugin_wrap_'.$this->getPluginComponent());
        $this->Lexer->addEntryPattern($this->entry_pattern, $mode, 'plugin_infobox');
		//Add Internal Pattern Match
		$this->Lexer->addPattern($this->row_pattern, 'plugin_infobox');
    }
	
    public function postConnect() {
	    $this->Lexer->addExitPattern($this->exit_pattern, 'plugin_infobox');
	    $this->Lexer->addPattern('[ \t]*={2,}[^\n]+={2,}[ \t]*(?=\n)', 'plugin_wrap_'.$this->getPluginComponent()); //FROM WRAP, NOT KNOWING WHAT IS HAPPENING		
    }
	
    public function handle($match, $state, $pos, Doku_Handler $handler) {	
		
		switch ($state){
		
			case DOKU_LEXER_ENTER :
				break;
			case DOKU_LEXER_MATCHED :
				//Find The Token And Value (Before '=' remove white space, convert to lower case).
				$tokenDiv = strpos($match, '=');											//Find Token Value Divider ('=')
				$prettyToken = trim(substr($match, 1, ($tokenDiv - 1)));					//Everything Before '=', Remove White Space
				$token = strtolower($prettyToken);											//Convert To Lower Case
				$value = trim(substr($match, ($tokenDiv + 1)));								//Everything after '='

				return array($state, $value, $prettyToken);

			case DOKU_LEXER_UNMATCHED :	
				return array($state, $match);
			case DOKU_LEXER_EXIT : 
				return array($state, '');
			case DOKU_LEXER_SPECIAL : 
				return array($state, $data, '');
		}
		
		return array($state, $match);		
    }

    public function properxhtml($data) {
    	$instructions = p_get_instructions($data);
		$data = p_render('xhtml', $instructions, $info);
		$data = str_replace(['<p>', '</p>'], '', $data); //Temporarely workaround for removing <p> inside table cause p_render
		return $data;
    }
 	
    public function render($mode, Doku_Renderer $renderer, $indata){
	    	
		if (empty($indata)) return false;
    	list($state, $data, $title) = $indata;
    	$token = strtolower($title); //$words = preg_replace('/[0-9]+/', '', $words);
    
        if($mode == 'xhtml'){
			switch ($state){
			  case DOKU_LEXER_ENTER :
			  	$renderer->startSectionEdit(0, $indata);
			  	$renderer->doc .= '<table class="infobox">'; 
			  	break;
			  case DOKU_LEXER_MATCHED :
			    if ($token === 'title' || $token === 'caption' ) $renderer->doc .= '<caption class="infobox-title">'.$data.'</caption>';
			    
				if ($token) :
				switch ($token) {
					case 'caption';
					case 'title';
						break;
					case 'header';
						$renderer->doc .= '<tr><th colspan="2" class="infobox-header">'.$title.'</th></tr>';
						break;
					case 'subtitle';
						$renderer->doc .= '<tr><th colspan="2" class="infobox-subtitle">'.$title.'</th></tr>';
						break;
					case 'fullrow';
					case 'desc';
					case 'full';					
						$renderer->doc .= '<tr><td colspan="2" class="infobox-fullrow">'.$this->properxhtml($data).'</td></tr>';
						break;
					case 'image';
						// $image = str_replace(['{{', '}}'], '', $data); //ONE WAY TO DO IT
						// $renderer->doc .= '<td colspan="2">'.$renderer->internalmedia($image,'','center','auto','auto','cache','nolink',true).'</td>';
						
						$renderer->doc .= '<tr><td colspan="2">'.$this->properxhtml($data).'</td></tr>';
					break;
					case 'footer';
						$renderer->doc .= '<tr><td colspan="2" class="infobox-footer">'.$this->properxhtml($data).'</td></tr>';
						break;
					default;
						$renderer->doc .= '<tr><th>'.$title.'</th>';
						// $renderer->doc .= '<td>'.$data.'</td>'; //Proper way which is not working
						$renderer->doc .= '<td>'.$this->properxhtml($data).'</td></tr>';
						break;
					}
				endif;				
			    
				break;			  
			  case DOKU_LEXER_SPECIAL :				
                break;
			  case DOKU_LEXER_UNMATCHED :
				$renderer->doc .= $renderer->_xmlEntities($data);
				break;
			  case DOKU_LEXER_EXIT :
				$renderer->doc .= '</table>';
				$renderer->finishSectionEdit();
				break;				
			}			
            return true;
        }        
        return false;
    }
}
?>

Dokuwiki Documentation - Syntax Plugin
Dokuwiki Documentation - Parser
Plugin Example
What we try accomplish

Momentálne v infoboxe nefunguje parsovanie interného markup kódu. Neviem prísť na to prečo.
getAllowedTypes() a getType() majú všetko nastavené správne, alebo nie?

Žeby $data bolo treba spracovať ešte pred parsovaním vo funkci handle?

Diskusia ku kódu na:
https://forum.dokuwiki.org/post/68827;nocount