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5.2.2 Boolean input

pref>a-b*c-...?
pref

command prefix

a
b
c
...

arbitrary number of parameters

-

respective parameter is disabled

*

respective parameter is enabled

?

description of parameters

KEYS
a
b
c
...

toggle the respective parameter

?

help on a particular parameter. Press this followed by the respective parameter key.

BACKSPACE

confirm and return

/

return

This input mode works similarly to a common non-terminal command, that is, a sub-menu. The difference is that what would otherwise be commands are actually parameters which are toggled when the respective keys are pressed. Boolean inputs have two forms: exclusive and non-exclusive. In the former only one parameter may be enabled at a time, so enabling a parameter automatically disables all others (a.k.a. radio buttons). The latter has no such restriction (a.k.a. checklist).