The plugin I'm working on updates the buffer after every change and uses
:undojoin. Unfortunately, sometimes the change *is* an undo, in which
case, :undojoin kills the history. What's the best way to detect whether
the operation is an undo or redo for this purpose?
The only thoughts I have are to nmap u and <C-r> (ick), or to somehow
check the number returned by getchangelist()... although I
getchangelist('%')[1] doesn't seem to ever return the current change, as
far as I can tell.
Thanks,
-Jason
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