casts = []
casts << {:long=>'program', :short=>'p', :type=>'string', :mandatory=>false, :default=>nil, :allowed=>ok_programs, :disallowed=>nil}
-casts << {:long=>'e_val', :short=>'e', :type=>'float', :mandatory=>false, :default=>10, :allowed=>nil, :disallowed=>nil}
+casts << {:long=>'e_val', :short=>'e', :type=>'float', :mandatory=>false, :default=>10.0, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'filter', :short=>'f', :type=>'string', :mandatory=>false, :default=>'no', :allowed=>'yes,no', :disallowed=>nil}
casts << {:long=>'megablast', :short=>'m', :type=>'flag', :mandatory=>false, :default=>nil, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'no_gaps', :short=>'G', :type=>'flag', :mandatory=>false, :default=>nil, :allowed=>nil, :disallowed=>nil}