BD>option : [-]Argument1 [,[-]Argument2] [,
BD>option : [-]Argument1 [,[-]Argument2] [,
The first form of the syntax for the OPTION: command is used
to set a number of ouput options to on or off, depending on whether
the option is prefaced by a minus sign (to switch off) or not. All
options are off by default: Options generally govern the type and
quantity of output given by the program, so that the default is
minimal output.
The list of names of elements and bases N1, N2,
Both the output options and the list of elements to which output is to
be restricted remain in force until redefined by subsequent
OPTION: commands. The SHOW: command, whose syntax is
identical, can be used to specify one-off output options and element
restrictions, but independently of the settings specified by
OPTION: commands.
A list of possible options is available by issuing the LOOK:
command with argument options .
where Argument1, Argument2, 
]
([N1, N2, ]) 
] are arguments of the form
discussed below; and where N1, 
, is a list of names of
elements and bases in parenthesis and separated by commas.
, defines a
collection of elements to which output is to be restricted. Output is,
in any case, only available for the elements in the collection being
adjusted. See §6.2 for details of specifying
collections for the definition part. The second form of the syntax
gives output for all elements in the collection being adjusted.
