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Re^5: Looking up elements of an array in another array!

by tobyink (Abbot)
on Mar 23, 2013 at 07:05 UTC ( #1025003=note: print w/replies, xml ) Need Help??

in reply to Re^4: Looking up elements of an array in another array!
in thread Looking up elements of an array in another array!

I'd suggest:

my $a_ext=quotemeta($a).$ext;

... because this will cope better when $a contains "special" characters such as "[" or "+".

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

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Re^6: Looking up elements of an array in another array!
by better (Acolyte) on Mar 23, 2013 at 07:50 UTC

    Thanks, this might help with my problem reported in the last update. I go and try.


      No, it doesn't. I will have to replace the brackets.

        This code will do

        foreach my $id (@ids) { #Replace brackets with underscore $id=~s/</_/; $id=~s/>/_/; #declare regex pattern my $ext = "[^0-9]*\.jpg"; my $a_ext=quotemeta($id).$ext;

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[perldigious]: but... but... perldigious is the unvirtuous kind of lazy in this case. :-)
[perldigious]: Just kidding. Thanks 1nickt, I'll go ahead and do it the right way. An extra set of brackets and a little extra indentation isn't too much to ask.
[karlgoethebier]: perldigious: perhaps a block if you are paranoid ;-)
[choroba]: but undef %hash and %hash = () both work, too, but the first one keeps the memory allocated, while the latter makes it available for other parts of the program.
[choroba]: iirc
[perldigious]: karlgoethebier: Well it is a pretty old and complicated (for me) bit of code I wrote (poorly by my current standards), so I'm expecting everything to break when I add the scoping and find out what else is undesireably scope changed. :-)
[perldigious]: Ah, thanks choroba, that sort of thing was precisely what I was wondering when I asked.

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