bug#43558: [PATCH]: Fix (forward-comment 1) when end delimiter is escaped.

[Alan Mackenzie]

Hello, Stefan.

On Tue, Sep 22, 2020 at 10:09:43 -0400, Stefan Monnier wrote:
> Hi Alan,

> > Hello, Emacs and Stefan.

> > In the following C comment:

> > 1   /*
> > 2     \*/
> > 3   /**/

> > , with point at BOL 1, do M-: (forward-comment 1).  This leaves point
> > wrongly at EOL 2.

> That seems to be correct w.r.t the highlighting I see, OTOH.
> IOW the bug seems to affect both forward-comment and parse-partial-sexp, 
> right?

Yes.

> > It should end up at EOL 3, since the apparent comment
> > ender on L2 is actually escaped.

> > The following patch fixes this.

> Does it fix it for `parse-partial-sexp` as well?

It does, yes.  The patch is in forw_comment, which is called by
Fforward_comment, scan_lists, and scan_sexps_forward.

> > Are there any objections to me installing it?

> None from me, no.

Thanks!

>         Stefan

-- 
Alan Mackenzie (Nuremberg, Germany).