An attempt:
This is an example to explain what I'm trying to do: 
   my $code = qq(
      [head]
      Head text...
      [body]
      Body text...
      [something else]
      more text..
   );                     #example of text

   $code =~ s/\n//g;      #remove all the newlines
   $code .= "\n";         #add one to the end

   $formatCode($code);

   sub formatCode{
      my $str = $_[0];

      $str =~ s#\[(.*?)\](.*?)(\[.*?\]|\n)#<div class="$1">$2</div>#ig
+;
      print $str;
   }

[download]
Feel free to optimize the RegEx too.. I'm a novice and can use wonderful shortcuts :)

So I wanna put each section in a DIV. It knows when the section ends because it hits a new section or a line break.

I tried sticking a $3 at the end of the replace side, but it didn't work. I don't know how to do this recursively without doing a loop until a match can't be found.

Any help is appreciated, thanks.
Solution:
I forgot how to do the lookahead:
$str =~ s#\[(.*?)\](.*?)(?=\[.*?\]|\n)#<div class="$1">$2</div>#ig;

[download]

In reply to Parsing using Regex and Lookahead by deMize

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