To all that help - much appreciated..




Nikola Janceski <[EMAIL PROTECTED]> on 04/16/2002 04:54:00 PM

To:   "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>, Nikola Janceski
      <[EMAIL PROTECTED]>
cc:   "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>, "Beginners (E-mail)"
       <[EMAIL PROTECTED]>

Subject:  RE: grep a array element..


Please do... I thought using qr// to store REs in variables speed up since
it gets compiled once instead of over and over again.

> -----Original Message-----
> From: Jeff 'japhy' Pinyan [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 16, 2002 11:50 AM
> To: Nikola Janceski
> Cc: '[EMAIL PROTECTED]'; Beginners (E-mail)
> Subject: RE: grep a array element..
>
>
> On Apr 16, Nikola Janceski said:
>
> >Yes.... but only if you are looking for that pattern.. if
> you wanted to add
> >something like "sedan" then you need to use // but the qr
> would speed up the
> >compile when using a $var in the //;
> >
> >if($element =~ $lookfor) { ## works if $lookfor = qr/car/;
> the same as
> >$element =~ /car/
> >
> >if($element =~ /sedan $lookfor/) { ## works faster if
> $lookfor = qr/car/;
> >than if $lookfor = "car";
>
> Sadly, that's misinformation.  If the group would like, I can
> write a post
> explaining the PURPOSE and APPLICATION of qr// in code.
> After reading it,
> you should have a good grasp of when qr// gives speed benefits.
>
> --
> Jeff "japhy" Pinyan      [EMAIL PROTECTED]
> http://www.pobox.com/~japhy/
> RPI Acacia brother #734   http://www.perlmonks.org/
http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for?  <tenderpuss> why, yansliterate of course.
[  I'm looking for programming work.  If you like my work, let me know.  ]

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