Re^2: regexp wizardry needed

perlop says that /r is for non-destructive operation of a regular expression. You can simply replace that by introducing a temporary variable:

my $result = $example =~ s/foo/bar/r;
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... can be replaced by

(my $result=$example) =~ s/foo/bar/;
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In your case, you will have to make sure your map block actually returns the intended value:

...
    map { (my $result=$_) =~ s/foo/bar/; $result } @elements
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Re^3: regexp wizardry needed by Anonymous Monk on Jan 25, 2013 at 18:03 UTC
/r is only availabe in 5.14 I am using 5.10.	[reply]
Re^4: regexp wizardry needed by AnomalousMonk (Archbishop) on Jan 26, 2013 at 05:12 UTC
Please read Corion's reply: "In your case, you will have to..."	[reply]