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Re: Parse messy string into neat data structure

by Anonymous Monk
on Aug 09, 2010 at 01:46 UTC ( [id://853708]=note: print w/replies, xml ) Need Help??


in reply to Parse messy string into neat data structure

I would write that as
my @images = ( [], [] ); { my( @imgstr ) = split /\|/, $str, 2; @{ $images[0] } = $imgstr[0] =~ m/(\w+\.jpg)/gi; @{ $images[1] } = $imgstr[1] =~ m/(\w+\.jpg)/gi; }
because
  • using parens with built-in functions is ugly , extra typing
  • split takes regex as 1st argument, and you're only expecting it to return 2 parts at most
  • avoid slice syntax when you're not taking a slice ($images[0])
  • avoid pretend arrays, use real arrays (@imgstr)
  • limit scope of temporary variables
Actually I would write
my @images; { my @imgstr = split /\|/, $str, 2; push @images, [ $_ =~ m/(\w+\.jpg)/gi ] for @imgstr; }
or actually
my @images = map { [ $_ =~ m/(\w+\.jpg)/gi ] } split /\|/, $str;
Yes, the last one is how I would normally write something like that, its funny how digesting someone else s code plays tricks on you :)

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