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Re: Dynamically Creating a Code reference

by ioannis (Parson)
on Jun 16, 2006 at 00:10 UTC ( #555660=note: print w/ replies, xml ) Need Help??

in reply to Dynamically Creating a Code reference

Here is your solution, with superficial code omitted. There is a closure over the initial value of $var (which can also be set with eval, barring errors). The print statements demonstrate that regardless on how you call the sub, it always acts on its initial closured value.

my $profile; { my $var = eval '33'; # or just my $var = 33 # or my $var = setme_at_runtime(); $profile = { my_name => sub { ($var =~ /\d+/) ? 1: return } }; } my $fun = $profile->{my_name}; print $profile->{my_name}->( ); print $profile->{my_name}->('a'); print $profile->{my_name}->( 22 );

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