I know this has almost been covered in other questions, but not quite.

Here's the scenario. I have a perl program that runs a large LED screen. The program has an "idle loop", where I want it to choose a random function from a list of internal functions.

Ideally, I'd define an array with the names of the routines that can be used, build a hash by name of their references, and call one at random.

Of course I use 'strict' and 'warnings'. I'm willing to disable 'strict' locally for this one routine to build the hash. I am not worried about external subversion calling unintentional code as it's governed by an array that's hard-coded in the script.

Here's a sample of what I'm trying, but can't seem to get it to work. Anyone able to help?

use strict;                                                           
+                                       
use warnings;
                                                                      
+                                       
use Data::Dumper;                                                     
+                                       


my @FuncList = qw(TestSub1 TestSub2);

my %JumpTbl;


foreach (@FuncList) {
    print "\$_=$_\n";
    no strict 'refs';
    $JumpTbl{$_} = \$_;
}

print Dumper(%JumpTbl);

$JumpTbl{'TestSub2'}();

exit;


sub TestSub1 {
    print "TestSub1\n";
}


sub TestSub2 {
    print "TestSub2\n";
}
[download]

Output:

$_=TestSub1
$_=TestSub2
$VAR1 = 'TestSub1';
$VAR2 = \'TestSub1';
$VAR3 = 'TestSub2';
$VAR4 = \'TestSub2';
Not a CODE reference at ./triv.pl line 22.
[download]

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