Carsten Dominik wrote: > Dear Robert, > > also region-active-p requires transient-mark-mode to be active, if you look > at the definition of the region-active-p function, you will see that. > > transient-mark-mode is on by default in Emacs. Why did you turn it > *off* in the > first place?????
I suspect that this is an aquamacs oddity. Aquamacs (I believe) turns on cua-mode by default and at least in the past, cua-mode was incompatible with transient-mark-mode, and there was even an order dependency (you had to turn cua-mode off before turning transient-mark-mode on). There's a fair amount of discussion about this that one can find by googling. I believe that this has changed, however, since looking at a modern copy of cua-mode.el doesn't seem to reveal any disabling of t-m-m. I'll be honest with you --- I don't even know HOW I turned t-m-m off, much less why! When I explicitly turn it ON in .emacs, all is well. When I run aquamacs without my init files, it's on. But nothing directly in my .emacs turns it off, nor do I have any customizations. This suggests that some library I'm using, somewhere, interferes with it, but as yet I have not found it. Best, r > > - Carsten > > On Dec 17, 2008, at 3:12 PM, Robert Goldman wrote: > >> Carsten Dominik wrote: >>> Hi Robert, >>> >>> no, I do not think this would make sense, to step out with >>> an error, because all the commands that need a region will >>> also work without one. This is how regions work in Emacs. >>> >>> If you find places in the documentation where this could >>> be made clearer, let me know. >> >> Thank you Carsten for the response. I am still inclined to think that >> this case is one where the user should get some warning because it's in >> that bad class of bug-like situations where code quietly does something >> that the user does not expect and that contradicts the documentation. >> >> On the other hand, I can't see where one would raise an error. It's not >> an error to call org-region-active-p without transient-mark-mode; indeed >> some libraries turn this on and off, and the user is entitled not to >> use it. >> >> The call to export isn't right, because the export command does not give >> the system any opportunity to infer whether the user intended to operate >> on a region or on the whole. So there's no way to tell that the user's >> expectations are going to be violated. >> >> The loading of org-mode isn't the right place, either, since the vast >> majority of org-mode works just fine with t-m-m turned off. >> >> I'm inclined to think that the answer is simply that one shouldn't turn >> transient-mark-mode off, ever. This works for me, but I hate to think >> of the next person coming along to fall into this same trap, from which >> the only means of escape is to inspect the source code and use the >> debugger. >> >> I would suggest a modification to the manual and will submit one, but >> need clarification about one issue: the use of t-m-m seems to be a >> fallback for older emacsen that don't have region-active-p. I have such >> an emacs, so I don't know --- does this mean that on newer emacsen >> org-region-active-p will work even without transient-mark-mode? >> >> Best, >> Robert > _______________________________________________ Emacs-orgmode mailing list Remember: use `Reply All' to send replies to the list. Emacs-orgmode@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-orgmode