bug#57639: Toggling, in general

[Robert Pluim]

>>>>> On Tue, 20 Sep 2022 22:47:26 -0400, Richard Stallman <rms@gnu.org> said:

    Richard> Another is the current input method.  ISTR there is an ad-hoc 
command to
    Richard> reselect the previous input method.  This is another thing that a 
general
    Richard> toggle could handle, and avoid the ad-hoc additional command.

I donʼt think `toggle-input-method' counts as ad-hoc. The first time
you use it, it follows `default-input-method' if set, otherwise it
prompts for an input method. Subsequent uses turn that input method on
and off (modulo the prefix arg). It *is* the command for selecting an
input-method, not a separate toggling command.

Robert
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