On 09.01.2024 08:49, gerard.vermeulen@posteo.net wrote:
[...]
>> Anyhow, I have removed the comment and I have replaced check below it 
>> with
>> +          (set-mark (point)) ;; To simplify the next (unless ...):
>> +          (unless (and (>= (point) body-beg) (<= (mark) body-end))
>> +            (user-error "Select within the source block body to split 
>> it"))
>> which also protects against having point in body and mark on or below 
>> #+end_src
>> 
> It occurred to me to that I only should set mark to point when the 
> region is
> not active.  I will add checking for `user-error's to the ERT test.
> 
Attached you'll find a new patch fixing the three wrong lines in the 
previous
and now the ERT test checks also for `user-error's.

Regards -- Gerard