Support extend for multiple goto

[pickfire]

gg, ge, [n]gg

[archseer]

Using selection(..).clone().transform() seems a bit wasteful because you're modifying all the ranges to extend to the same place. This will probably end up merging ranges which is not what you intended to do.

I think you should simply take the primary range, modify it with put cursor, then call
set_selection(view.id, Selection::single(new_range))

[pickfire]

Using selection(..).clone().transform() seems a bit wasteful because you're modifying all the ranges to extend to the same place. This will probably end up merging ranges which is not what you intended to do.

I believe that is the intended one when you have multiple cursors. With the largest range overlapping to the place you want it to be. Otherwise it might be a bit surprising that some of the cursors did not move.

[archseer]

Yeah okay, was able to reproduce in kakoune: https://asciinema.org/a/nH0vbF5TKlNIbgv4vWNY1VRJM