Node:-AT, Next:-A_, Previous:-2, Up:Options
-@
: Display the control-code mappingsThis option supplies information about the @
control codes
(see AT commands). It shows the associated style-file parameters
that can be used to remap the codes (but don't do that!), and it
displays the precedence. (Some codes such as @@
may be used
anywhere; others such as @*
begin
a new section or part of section. Codes that begin the definition part
are labelled by [D]
; codes that begin the code part are labelled
by [C]
; codes that begin a new section are labelled by
[S]
.)
The option produces two columns of output: the first is sorted
numerically, the second alphabetically. The notation USED_BY_OTHER
means that this command is ignored by whatever processor (FTANGLE
or FWEAVE) is currently being run, but may be used by the other
processor. (For technical reasons, a very few commands such as
@i
do not show up in this output at present.)
If one says just -@
, information about all control codes is
produced. Selected control codes may be queried by listing them after
the -@
. For example, to learn about the commands @~
and
@a
, say -@~a
. Remember to quote certain characters on
UNIX systems--e.g., -@'*?'
. If a command is used by
neither processor, its description will be replaced by a question mark.