[TYPO3-project-formidable] Template Engine: Bug when using isLoggedIn().isFalse() twice

[Hauke Hain]

Regular Expressions are powerful, but not easy to understand.

I do not understand how the function processPerimetersCallBack is called.

It is calles via
$sHtml = preg_replace_callback(
   $sPattern,
   array(
    &$this,
    "processPerimetersCallBack"
   ),
   $sHtml,
   -1 // no limit
  );

But how does it get its parameter?



The problem with processPerimeters is, that Match[3] contents the whole 
content from the first <!-- ###isLoggedIn().isFalse() perimeter### begin--> 
to the last <!-- ###isLoggedIn().isFalse() perimeter### end-->....


And sorry, I said a few hours ago, that this only happens with 
isLoggedIn().isFalse()  - it seems to happen with every condition which is 
used more than once.



I changed in the regular expression that not every a-z and A-Z charackter is 
ok, but every charackter that is not the first group-string:
[^\\1.]

Replace
  $sPattern = '/\<\!\-\-.*(\#\#\#(.+)\ 
\bperimeter\b\#\#\#).*begin\-\-\>([\w\W]*)\<\!\-\-.*\\1.*end\-\-\>/';
with
$sPattern = '/\<\!\-\-.*(\#\#\#(.+)\ 
\bperimeter\b\#\#\#).*begin\-\-\>([^\\1.]*)\<\!\-\-.*\\1.*end\-\-\>/';


Now everything is shown and nothing left, but *some* parts are shown, that 
shouldn't.

The first <!-- ###isLoggedIn().isFalse() perimeter### begin--> ... <!--  
###isLoggedIn().isFalse() perimeter### end--> Part is shown or hidden as it 
should be.

The second Part is always shown.

At least nothing is left anymore.

I hope you can fix the rest. That was enough for today.

Sincerely,
Hauke