Allow the function to take an argument. 

sub create_f {
    my $func = shift;
    return sub {
        my $var = 'xpto';
        $func->( $var );
    }
}

my $f = create_f( sub {
                  my $var = shift;
                  print ">> $var <<\n";
              } );

[download]

Otherwise, I don't see a way to do it. The sub can't reach outside its scope for variables that aren't global.

You could cook up something with eval, maybe. 

sub create_f {
    my $func = shift;
    return sub {
        my $var = "xpto";
        eval $func;
    }
}

my $function = create_f( 'print ">> $var <<\n"' );

$function->();
__END__
>> xpto <<

[download]

I'm not sure if that fits with your real problem or not.

In reply to Re: Making variables visible between calls. by kyle
in thread Making variables visible between calls. by ambs

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