Hello, Beatrix.
In article <mailman.5894.1545155289.1284.bug-gnu-emacs@gnu.org> you wrote:
> When using cc-mode, turning on electric-pair-mode causes the
> auto-newline minor mode to stop inserting newlines where expected. This
> is relevant to the formatting of C# code with the Allman/BSD brace style
> in particular, though it would be nice if these modes specifically did
> work together.
Yes. What is happening, from the viewpoint of CC Mode, is that on
inserting a {, electric-pair-mode is prematurely inserting its }, before
the processing for the { is complete. Also, due to the way } gets
inserted, the CC Mode processing for the } isn't done at all.
@João: I think electric pair mode is intended to simulate the manual
insertion of a matching paren, etc., when a paren, etc., is typed.
Would it therefore be possible, rather than having a crude insertion on
post-self-insert-hook, to use something like post-command-hook to allow
the insertion of the { first to complete? Then, rather than using the
brutal self-insert-command for } in electric-pair--insert, use the
command to which the key } is bound? This should allow CC Mode's
auto-newline facility to work, and also more closely simulate the manual
insertion of the closing delimiter.
I don't know. We better ask Stefan (CC'ed) who I believe designed the
original strategy of inserting closing delimiters in the previous
electric-pair-mode.
That didn't change in my redesign.
FWIW, I think cc-mode should rather use post-self-insert-hook instead
of redefining commands for keys whose expected behaviour is
(with minor variations presumably covered by abundant hookage)
self-insertion. If you place your specific cc-mode processing late
enough in the hook then its insertion will be "complete" for all
practical purposes.
João