Re: Should undefined behavior be encouraged in Emacs?

[Andreas Röhler]

[  ... ]
> This is unfortunate, then, because I agree with Andreas: the Emacsen
> programming interfaces for working with active regions are complex and
> annoying, and unnecessarily so from a design standpoint.

think it would pay a lot to clean up that. AFAIU the same things are 
reimplemented in several loops without that the core questions which 
usually arises profit from it:

is it time to take a certain action or not?

for me transient-mark-mode in connection with a mark set is enough.

Cheers,

Andreas