COMPLETION-OPTIONS : FLAG

COMPLETION-OPTIONS is a flag or parameter.
If T, then the user will be offered a choice between
multiple completions of a command. Also, the commands offered
will come from the current top level, the main top level and the
flags.
If NIL, command completion will try first the current top level,
then the main top level, and then the flags, and will fail if the
first of these which contains any completions also contains
multiple completions.
For example (when T)
<1>displ&

3 matching commands or flags have been found.
1) DISPLAYFILE
2) DISPLAY-TIME
3) DISPLAYWFF
4) None of these.
Input a number between 1 and 4: [1]>

(when NIL)
<2>displ&
TPS error while reading.
Multiple completions for DISPL: DISPLAYFILE DISPLAY-TIME
COMPLETION-OPTIONS takes values of type BOOLEAN.
It belongs to subjects MAINTAIN .
Its default value is T
Its current value is T.

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