bug#19267: 25.0.50; Enhance cycle-spacing with a state where only whitespace after point is deleted

[Lars Ingebrigtsen]

Tassilo Horn <tsdh@gnu.org> writes:

> I'd say just create a cycle-spacing-actions defcustom and use that in
> the existing cycle-spacing instead of the hard-coded sequence.  And bind
> M-SPC to cycle-spacing by default because it's simply superior (a
> super-set) of just-one-space.

It's two actions, and one which can't be done via Customize...

> I mean, how would people discover the possibility of customizing
> cycle-spacing-actions if not by checking the info docs and/or NEWS
> (where cycle-spacing is already mentioned as a more powerful
> just-one-space alternative)?  And nobody would look in there if the
> default behavior is just-one-space.  We need a disruptive change! :-)

If we do this change, they'll find out about the variable by doing
`C-h M-SPC'.  Eventually.

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