Re: POLL: make C-x o transient

[Gregory Heytings]

> Just switch the direction by the prefix arg '-'.  Its handling could be 
> easily implemented.  It seems better to extend repeat.el to allow using 
> the last key of the last command, add handling of universal arguments, 
> and all this without using add-advice and hooks.

IMO it is would be much better to map the existing repeat command to a 
single keystroke, it would make any command repeatable without changing 
anything else, and it already handles universal arguments.  I think C-= 
would be the best key for this: not only is "=" a good mnemonic for "same 
command", but it is also next to the "-" key to change the direction.