Glenn Morris <
rgm@gnu.org> schrieb am Di., 13. Dez. 2016 um 19:03 Uhr:
Philipp Stephani wrote:
> The Ediff Info manual, in section 7.1 "Hooks", says:
>
> 'ediff-cleanup-hook'
> This hook is run just before 'ediff-quit-hook'. This is a good
> place to do various cleanups, such as deleting the variant buffers.
> Ediff provides a function, 'ediff-janitor', as one such possible
> hook, which you can add to 'ediff-cleanup-hook' with 'add-hook'.
>
> However, ediff-cleanup-hook is a normal hook, and ediff-janitor is a
> function taking two required arguments, so it cannot be added to
> ediff-cleanup-hook. The manual should e.g. state that a lambda wrapping
> ediff-janitor can be added to ediff-cleanup-hook, but not ediff-janitor
> itself.
It seems the doc hasn't been updated in the past 14 years.
Before 50a07e1, there was a single optional argument.
You might be one of the few users of this functionality, so maybe you
would like to fix the doc yourself?
I don't use it myself, but I got a report from a colleague who interpreted the manual such that you could add ediff-janitor directly to the hook with add-hook. I've attached a patch to clarify this. I'll push it to emacs-25 in a few days until there are complaints.
0001-Clarify-usage-of-ediff-cleanup-hook-Bug-24675.txt