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http://bugs.exim.org/show_bug.cgi?id=861




--- Comment #1 from Philip Hazel <[email protected]>  2009-07-03 11:19:09 
---
On Fri, 3 Jul 2009, David Gausmann wrote:

> The code is the following:
> $sContent = 'Call ABCDEFGHJIKLMNOPQRSTUVWXYZ("Lorem Ipsum dolor sit amet,
> consectetuer elitr\'" & VARIABLE & "\'" & vbCRLF &                            
>  
>                vbCRLF &                                             "Lorem
> ipsum dolor sit amet conset" & vbCRLF &                                       
>  
>     vbCRLF &                                             "Lorem ipsum dolor 
> sit
> amet consectetuer sadipscing.")';
> echo 
> preg_match('/^(?:[^"]|"(?:[^"]|"")*")*(?:var_alloc)\s*\(?\s*"[^"]+".*$/i',
> $sContent);
> 
> As you can see the string (which shall be evaluated) is very long.

Not compared to the thousands of characters some people fling at PCRE. :-)

I am not a PHP user; from what you posted, I am not sure that I 
extracted the final string that would be passed to PCRE.

> Hence the error depends on the combination apache - php - pcre

I deal only with PCRE; I don't know or use apache or php. I have tried 
to run the match directly using pcretest, but as I said above, I am not 
at all sure I had the right data. Combination errors usually need the 
attention of the most downstream maintainer - in this case, probably 
PHP. Have you reported this to the PHP people? If you can provide a 
pattern and a data string that cause PCRE to misbehave in some way, then 
I will certainly look at it.

Philip


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