On Tue, Jun 25, 2013 at 11:17:47PM -0400, Peter Eisentraut wrote:
> On Sun, 2013-06-23 at 16:03 -0400, Noah Misch wrote:
> > > ((c-mode . ((c-basic-offset . 4)
> > > (fill-column . 79)
> >
> > I don't know whether you'd consider it to fall within the scope of this
> > update, but 78 is the fill-column setting that matches pgindent.
>
> Well, well, well. I did some extensive tests some time ago when that
> setting was added. I have a suspicion that this could be related to the
> recent pgindent changes (which everyone claims were no changes). I'm
> going to have to research that some more.
pgindent has not changed the following xlog.c comment since April 2011, but
fill-column 77 or 79 changes it:
/*
* fullPageWrites is the master copy used by all backends to determine
* whether to write full-page to WAL, instead of using process-local
one.
* This is required because, when full_page_writes is changed by SIGHUP,
* we must WAL-log it before it actually affects WAL-logging by
backends.
* Checkpointer sets at startup or after SIGHUP.
*/
Note that emacs and pgindent remain at odds over interior tabs in comments.
When pgindent finds a double-space (typically after a sentence) ending at a
tab stop, it replaces the double-space with a tab. c-fill-paragraph will
convert that tab to a *single* space, and that can be enough to change many
line break positions.
--
Noah Misch
EnterpriseDB http://www.enterprisedb.com
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