Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options

This regex: is there something bad there?..

by Doctrin (Beadle)
on Feb 13, 2013 at 19:07 UTC ( #1018605=perlquestion: print w/replies, xml ) Need Help??
Doctrin has asked for the wisdom of the Perl Monks concerning the following question:

Hello dear Monks! I suspect that following regex puts the server down (sic, it is executed much times). So, is there something bad in this regex? if($Inapp=~/refill_(\d+)\.$/){ I don't know how and why, but if I put if(0) here, all is OK :( I've made the body of condition completely EMPTY for tests to be sure that regex is the case. So, when I try to browse a page, generated by a script containing this regex - it hangs forever. And if I get rid of this regex - all ok. Is there any reasonable explanation of that (including my stupidity, maybe)? UPD: Thanx, problem resolved; the regex was not the case...

Replies are listed 'Best First'.
Re: This regex: is there something bad there?..
by Anonymous Monk on Feb 13, 2013 at 19:22 UTC

    There's nothing wrong with the regex. It will change $1 however. Is your code using $1 after the if and going into an infinite loop because the value isn't what you expect?

Re: This regex: is there something bad there?..
by mendeepak (Scribe) on Feb 14, 2013 at 05:02 UTC

    This regex looks fine to me. Is there any that is using this regex below that piece of code, look in to that as well i guess it might be the problem.


Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: perlquestion [id://1018605]
Approved by muba
[james28909]: well who is the person who gets to decide which behaviour is worthy of a downvote? a person with their own beliefs? xD
[erix]: teleology -- I've never understood why that was thunk up
[erix]: ( and when teleology was brought up, during my biology-study., I couldn't get an answer either )
[1nickt]: FTR I agree with you about "design." Just not sure about the trajectory of evolution. THere are a lot of dead-ends in the evolutionary paths. I suspect homo sapiens is just one of them.
[james28909]: thanks for the vid holli, i do like it. thanks for sharing :)
[holli]: gives me goosebumps every time I watch it
holli gotta grab some groceries before dawn. l8ters
[erix]: s/dawn/dusk/
[erix]: (you're welcome :P)

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (12)
As of 2017-12-15 14:39 GMT
Find Nodes?
    Voting Booth?
    What programming language do you hate the most?

    Results (433 votes). Check out past polls.