=====Wikka-markup in Comments=====
>>Working for 1.1.6.0 to 1.1.6.4 (latest)>>To make comments a little bit more flexible, why don't add a part of wikkas markup? 

I thought about: //italic//, **bold**, ##monospace##, ++strikethough++, __underlined__, ''notes'', WikiWords and InterWikiLinks


===1. Problem===
There is no backwards compatibility to older comments now because of the following problem:
Since a formatter for comments does not exist, "handlers/page/addcomment.php", uses nl2br to store the html in the table itself. So older commenst will show up "<br />" at the end of every line.

If you have a wiki without older comments, everything will work fine.

====The Code====

0. In ##handlers/page/addcomments.php## change the line:
%%(php)
	$body = nl2br($this->htmlspecialchars_ent(trim($_POST["body"])));	
%%
into the following one:
%%(php)
	$body = $this->htmlspecialchars_ent(trim($_POST["body"]));
%%

Remaining problem: the <br /> in the already existing comments remain, and will show up now (see above).

1. Search in ##handlers/page/show.php## for //display comments themselves//:

There you can find these lines:
%%(php)
						echo '<div class="comment">'."\n".
							'<span id="comment_'.$comment['id'].'"></span>'.$comment['comment']."\n".
							"\t".'<div class="commentinfo">'."\n-- ";
						echo ($this->LoadUser($comment['user']))? $this->Format($comment['user']) : $comment['user']; // #84
%%

''change these statements into these ones''!
%%(php)
						echo '<div class="comment">'."\n".
							'<span id="comment_'.$comment['id'].'"></span>'.$this->Format($comment['comment'], 'comments')."\n".
							"\t".'<div class="commentinfo">'."\n-- ";
						echo ($this->LoadUser($comment['user']))? $this->Format($comment['user'],'comments') : $comment['user']; // #84
%%

2. Save the following as ##formatters/comments.php##:
%%(php)
<?php

// This may look a bit strange, but all possible formatting tags have to be in a single regular expression for this to work correctly. Yup!

//#dotmg [many lines] : Unclosed tags fix! For more info, m.randimbisoa@dotmg.net ((only indents? --NilsLindenberg))
if (!function_exists("comments2callback"))
{
	function comments2callback($things)
	{
		$thing = $things[1];
		$result='';
		
		static $trigger_bold = 0;
		static $trigger_italic = 0;
		static $trigger_underline = 0;
		static $trigger_monospace = 0;
		static $trigger_notes = 0;
		static $trigger_strike = 0;
		static $trigger_sup = 0;
		static $trigger_sub = 0;
		static $br = 1;        

		global $wakka;

			if ((!is_array($things)) && ($things == 'closetags'))
		{
		if ($trigger_bold % 2) echo('</strong>');
		if ($trigger_italic % 2) echo('</em>');
		if ($trigger_underline % 2) echo('</span>');
		if ($trigger_monospace % 2) echo('</tt>');
		if ($trigger_notes % 2) echo ('</span>');
		if ($trigger_strike % 2) echo ('</span>');
		if ($trigger_sup % 2) echo '</sup>';
		if ($trigger_sub % 2) echo '</sub>';

		$trigger_bold = $trigger_italic = $trigger_underline = $trigger_monospace = $trigger_notes = $trigger_strike = $trigger_sup = $trigger_sub = 0;
		return;
		}

		// convert HTML thingies
		if ($thing == "<") return "&lt;";
		else if ($thing == ">") return "&gt;";

		// bold
		else if ($thing == "**")
		{
		return (++$trigger_bold % 2 ? "<strong>" : "</strong>");
		}
		
		// italic
		else if ($thing == "//")
		{
		return (++$trigger_italic % 2 ? "<em>" : "</em>");
		}
		
		// underlinue
		else if ($thing == "__")
		{
		return (++$trigger_underline % 2 ? "<span class=\"underline\">" : "</span>");
			}

		// monospace
		else if ($thing == "##")
		{
		return (++$trigger_monospace % 2 ? "<tt>" : "</tt>");
		}
		
		// notes
		else if ($thing == "''")
		{
		return (++$trigger_notes % 2 ? "<span class=\"notes\">" : "</span>");
		}

		  // strikethrough
		else if ($thing == "++")
		{
		return (++$trigger_strike % 2 ? "<span class=\"strikethrough\">" : "</span>");
		}

				   /*
		// superscript
		else if ($thing == "^^")
		{
		return (++$trigger_sup % 2 ? "<sup>" : "</sup>");
		}
		
		// subscript
		else if ($thing == "vv")
		{
		return (++$trigger_sub % 2 ? "<sub>" : "</sub>");
		}
				  */  

		// interwiki links!
		else if (preg_match("/^[A-ZÄÖÜ][A-Za-zÄÖÜßäöü]+[:]\S*$/s", $thing))
		{
		return $wakka->Link($thing);
		}

		// wiki links!
		else if (preg_match("/^[A-ZÄÖÜ]+[a-zßäöü]+[A-Z0-9ÄÖÜ][A-Za-z0-9ÄÖÜßäöü]*$/s", $thing))
		{
		return $wakka->Link($thing);
		}

		// new lines
		else if ($thing == "\n")
		{
		$result .= ($br ? "<br />\n" : "\n");
		$br = 1;
		return $result;
		}

		// if we reach this point, it must have been an accident.
		return $thing;
	}
}

$text = str_replace("\r\n", "\n", $text);

// replacing part of urls so the don't get italic 
$text = preg_replace('#://#', "DUMPTEXT", $text);

$text = preg_replace_callback(
	"/(".
	"\[\[[^\[]*?\]\]|".																		# forced link
	"<|>|".																					#html-tags
	"\*\*|\'\'|\#\#|\+\+|__|<|>|\/\/|".														# Wiki markup                    
	"\b[A-ZÄÖÜ][A-Za-zÄÖÜßäöü]+[:](?![=_])\S*\b|".											# InterWiki link
	"\b([A-ZÄÖÜ]+[a-zßäöü]+[A-Z0-9ÄÖÜ][A-Za-z0-9ÄÖÜßäöü]*)\b|".								# CamelWords
	"\n".
	")/ms", "comments2callback", $text);

// we're cutting the last <br />
$text = preg_replace("/<br \/>$/","", $text);

// re-replacing the url-part
$text = ereg_replace("DUMPTEXT", "://", $text);

// $text = $this->Typography($text); // only needed for SmartyPants in comments (see there)
echo ($text);
comments2callback('closetags');
?>%% 
====Configurable comment markup====
1. Add the following line to ##wikka.config.php##:
%%(php)
	"markup_comments" => "1",
%%

where '1' means to allow markup and '0' means to disallow it.

2. In ##handlers/page/addcomments.php## change the line:
%%(php)
	$body = nl2br($this->htmlspecialchars_ent(trim($_POST["body"])));	
%%
into the following statement:
%%(php)
	if (($this->GetConfigValue('markup_comments') == 1) && file_exists('formatters/comments.php'))
	{
		$body = $this->htmlspecialchars_ent(trim($_POST["body"]));
	}
	else {
		$body = nl2br($this->htmlspecialchars_ent(trim($_POST["body"])));	
	}
%%

3. Search in ##handlers/page/show.php## for //display comments themselves//:

There you can find these lines:
%%(php)
						echo '<div class="comment">'."\n".
							'<span id="comment_'.$comment['id'].'"></span>'.$comment['comment']."\n".
							"\t".'<div class="commentinfo">'."\n-- ";
						echo ($this->LoadUser($comment['user']))? $this->Format($comment['user']) : $comment['user']; // #84
%%

''change these statements into these ones''!
%%(php)
						if (($this->GetConfigValue('markup_comments') == 1) && file_exists('formatters/comments.php'))
						{
							echo '<div class="comment">'."\n".
								'<span id="comment_'.$comment['id'].'"></span>'.$this->Format($comment['comment'], 'comments')."\n".
								"\t".'<div class="commentinfo">'."\n-- ";
							echo ($this->LoadUser($comment['user']))? $this->Format($comment['user'],'comments') : $comment['user']; // #84
						}
						else {
							echo '<div class="comment">'."\n".
								'<span id="comment_'.$comment['id'].'"></span>'.$comment['comment']."\n".
								"\t".'<div class="commentinfo">'."\n-- ";
							echo ($this->LoadUser($comment['user']))? $this->Format($comment['user']) : $comment['user']; // #84
						}
%%
3. Use the ##comments.php## from above.
----
CategoryUsercontributions