Or use a whitelist: 
my $A = My::->new();
my $method = $method_list{$ARGV[0]}
    or die "Invalid method $ARGV[0].";
$A->$method(@ARGV[1..$#ARGV]);

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--
A math joke: r = | |csc(θ)|+|sec(θ)| |-| |csc(θ)|-|sec(θ)| |

In reply to Re^2: How do I call a sub using a variable as its name, objectively by ysth
in thread How do I call a sub using a variable as its name, objectively by misterperl

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