Re: how to `register' vc-hg-region-history in vc-region-history?

[Dmitry Gutov]

On 1/18/18 17:27, Uwe Brauer wrote:
> Hi
>
> I just tried out a new function
> (right now I don't care much about keybinding and font locking
>
> So the function (defun vc-hg-region-history (file buffer lfrom lto)
> Seems a natural generalization of vc-git-region-history  However I don't 
> see how to tell vc-region-history to tell that the new function now 
> exists. I tried to debug it
>
>
> (defun vc-region-history (from to)    (vc-call region-history file buf 
> lfrom lto)
> And there vc aborts for HG. What do I miss?

You also need vc-hg-region-history-mode. vc-region-history calls it.