You are looking for Symbolic references. The following code does what you intend; However, I would think a dispatch table would be a cleaner, safer and less bug-prone solution to your issue. I, of course, have no idea what that issue is. Please read Why it's stupid to use a variable as a variable name before you use the code.
#!/usr/bin/perl
use strict;
use warnings;
my $sub = 'do_this';
{
no strict "refs";
print $sub->("Fred");
}
sub do_this {
my $var = shift;
return "My name is $var";
}
sub do_that {
my $var = shift;
return "My name is not $var";
}
__END__
My name is Fred
And with a dispatch table, which leaves strict intact:
#!/usr/bin/perl
use strict;
use warnings;
my %dispatch_table = (
do_this => sub {
my $var = shift;
return "My name is $var";
},
do_that => sub {
my $var = shift;
return "My name is not $var";
},
);
my $sub_name = 'do_this';
print $dispatch_table{$sub_name}("Fred");
__END__
My name is Fred
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