I get the error 
Can't use string ("") as a subroutine ref while "strict refs"

[download]
 the corresponding code is 
my $var1;
my $var2;
my $regex=qr/^Device(\s)+Configuration/;
tie %functions, 'Tie::RegexpHash';
%functions = (
     ($regex => \&get_device);

my $result = $functions{$var1}->($var2);

[download]
if I use a string as the key the code works, how can I expand the regex correctly for the function to use it?

In reply to Using a regex as a hash key by jivanm

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