my @fields = split(/;/);
my $obj = SomeClass->new(this => "$fields[0]",
			 that => "$fields[1]",
			 the_other => "$fields[2]",
			);

##</code><code>##

my @fields = qw/this, that, the_other/;
my %argsHash = ???;
my $obj = SomeClass->new(%argshash);