Replace string, but not inside of tags and not in specified spans

[foxroberts]

Hi.

The title says it all:
I am looking for a solution (probably preg_replace-based)
to replace text parts with links.

My first trial:
$pattern = "$titel";
$replacement = '<a href="/glossar/'.urlencode($titel).'" class="glossarlink">'.$titel.'</a>';
$html = eregi_replace($pattern, $replacement, $html);

The problem:
Headlines (<h1></h1) and part of links are also replaced.
Is there a solution to prevent this?

Thanks alot for any hint!

Fox

[infolock]

if it was me, i'd just do this :

$html = str_replace($titel, '<a href="/glossar/'.urlencode($titel).'" class="glossarlink">'.$titel.'</a>');

fyi: isn't titel suposed to be title? ...

[foxroberts]

The problem is that this simple version of replacement would
cause headlines like this: <h1><a href="link">Headline</a></h1>

I try to find a workaround at the moment, but it isn't working
that good. If someone has a good idea, please tell me!

By the way: "titel" is the German version of "title".