+sub _route_request {
+ my $script_name = shift;
+
+ return $script_name =~ m/dispatcher\.pl$/ ? _route_dispatcher_request() : ($script_name, $::form->{action});
+}
+
+sub _route_dispatcher_request {
+ my $name_re = qr{[a-z]\w*};
+ my ($script_name, $action);
+
+ eval {
+ die "Unroutable request -- inavlid module name.\n" if !$::form->{M} || ($::form->{M} !~ m/^${name_re}$/);
+ $script_name = $::form->{M} . '.pl';
+
+ if ($::form->{A}) {
+ $action = $::form->{A};
+
+ } else {
+ $action = first { m/^A_${name_re}$/ } keys %{ $::form };
+ die "Unroutable request -- inavlid action name.\n" if !$action;
+
+ delete $::form->{$action};
+ $action = substr $action, 2;
+ }
+
+ delete @{$::form}{qw(M A)};
+
+ 1;
+ } or do {
+ $::form->{label_error} = $::cgi->pre($EVAL_ERROR);
+ show_error('generic/error');
+ };
+
+ return ($script_name, $action);
+}
+