I prefer dispatch tables since they allow full control. Otherwise use eval to handle lexical symbolic references. The third solution shows a way to note it in one line. HTH! =) 
use warnings;
use strict;


my $_parse_element_configuration =
  sub{
    print "element_configuration: @_\n"
  };

my $handler = "_parse_element_configuration";

my $self=42;



#--- dispatch table

my %parser;
$parser{_parse_element_configuration}=$_parse_element_configuration;

my $meth=$parser{$handler};
$self->$meth(666);


#--- lex sym ref via eval

$meth= eval "\$$handler";
$self->$meth(777);


#--- abstracted

sub handle {
  my $name=shift;
  return eval "\$$name";
}

handle($handler)->($self,888);

[download]
out: 
element_configuration: 42 666
element_configuration: 42 777
element_configuration: 42 888

[download]

Cheers Rolf

( addicted to the Perl Programming Language)

update

corrected c&p problem but created duplicate! :-(

In reply to Re: Invoking a string reference to a anonymous subroutine by LanX
in thread Invoking a string reference to a anonymous subroutine by Superfox il Volpone

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