Re: execute function with name passed as string parameter

[shmem]

in reply to execute function with name passed as string parameter

What the other monks said, but TIMTOWTDI. You can also store subroutine references in your hash and execute them.

perl -le '$choice='1'; %hash=( '0' => \&one, '1' => \&two ); $hash{$ch
+oice}->(); sub one {print "one"}; sub two {print "two"}'

You could also call the subroutine reference via &{$hash{choice}} - but be aware that there's a subtle difference:

$\="\n"; # output record separator
$choice='1';
%hash=( '0' => \&one, '1' => \&two );
@_ = "fish";
$hash{$choice}->();
&{$hash{$choice}};
one;
&one;

sub one { print "one", @_ }
sub two { print "two", @_ }
__END__
two
twofish
one
onefish

That is, &sub, &$sub, &{gimme_a_subref()} and so on - without parens - pass the current @_ to the called subroutine. Of course, &{$hash{$choice}}() - with parens - passes an empty list.

[rgcosma]

OK, so it was a syntax misunderstanding, thank you all.