Re: Apache 2.2 mod_include mis-interpreting back-references

[hugh williams <hughw@xxxxxxxxxxxxxxxx>]

Hi;

I posted this 5 months ago, and got no response. So I'm going to act 
insanely (insanity: doing the same thing over and expecting different 
results) and repost in hopes that some different readers are here.

Why is Apache 2.2.x throwing these warnings? I have upgraded to 2.2.9 
since posting, and still get these warning messages all the time, even 
though the web pages display as expected. What changed in mod_include 
from the 1.3.x tree? Should I submit this as a bug somewhere?

Thanks!

hugh

hugh williams wrote:
> Hi;
>
> I have a collection of web pages that use SSI to parse pieces of 
> $DOCUMENT_NAME and present those bits in the HTML output. Here's the 
> code:
>
> <!--#exec cmd="echo $DOCUMENT_NAME | perl -e 'while (<>) 
> {s/(\w+)_(\w+)_[_abt]{3}\..*/sprintf \"<b>%s Option %s 
> Hyperlinks<\/b>\", uc $1,uc $2/e;print;}'" -->
>
> This takes a file name like "z1234_aba_abt.html" and spits back "Z1234 
> Option ABA Hyperlinks".
>
> This works fine in both Apache 1.3.33 and 2.2.3; however 2.2.3 also 
> send the following error warning into the error log:
>
> [Wed Oct 22 14:50:00 2008] [warn] [client xxx.xxx.xxx.xxx] regex 
> capture $1 refers to no regex in /users/hughw/public_html/spclhand/z
> 1234_aba_abt.html
> [Wed Oct 22 14:50:00 2008] [warn] [client xxx.xxx.xxx.xxx] regex 
> capture $2 refers to no regex in /users/hughw/public_html/spclhand/z
> 1234_aba_abt.html
>
> This message is found in mod_include.c, and is not present in the 
> Apache 1.3 tree.
>
> So, can someone explain to me why the error is triggered? The include 
> parses perfectly and the correct results are displayed, that is, Perl 
> handles things fine, but Apache apparently is trying to use the "$1" 
> and "$2" for its own needs as well as letting Perl have them.
>
> Thanks
>
> hugh

--
Hugh Williams                  "More men are killed by overwork than the
hugh_williams@xxxxxxxxxxx       importance of the world justifies."
Agilent Technologies                           - Rudyard Kipling
Santa Rosa 4US-R                             "The Phantom Rickshaw", 1888
(707)-577-4941



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