bug#67925: 29.1; delete-rectangle fails on multi-column characters

[Stefan Kangas]

Juri Linkov <juri@linkov.net> writes:

>>> OTOH, with monospaced fonts LibreOffice selects such Block Area
>>> on the reported text:
>>>
>>> and DEL deletes the selected text.  So maybe Emacs should do the same.
>>
>> The patch I posted in
>>
>>   https://debbugs.gnu.org/cgi/bugreport.cgi?bug=67925#8
>>
>> is supposed to do precisely that (and does it at least in this simple
>> example).
>
> I confirm this, so probably it's impossible to do anything better than that.

Doing as well as LibreOffice is probably already not bad.

Perhaps we should add a comment pointing to this discussion, to explain
why we have chosen this particular heuristic.