From: Drew Adams <drew.adams@oracle.com>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: Lars Ingebrigtsen <larsi@gnus.org>, 15047@debbugs.gnu.org
Subject: bug#15047: 24.3.50; doc string of `find-listp-find-files' etc.
Date: Sun, 1 May 2016 06:28:04 -0800 (GMT-08:00) [thread overview]
Message-ID: <9de01255-e142-4d14-a7d8-296dbcdb9deb@default> (raw)
In-Reply-To: <87zis93n89.fsf@web.de>
> "DIRECTORY-PREDICATE is used to decide whether to descend into
> directories. It is a function which takes two arguments, the directory
> and its parent."
>
> I think with this wording its obvious what DIRECTORY-PREDICATE it is
> applied to.
OK.
> I also think the word "whether" suggests how the boolean return value is
> interpreted: descent when the predicate returns non-nil (aka "yes").
> We could say that explicitly, sure, but I think it's worth it...
"Whether" does not imply that non-nil (aka "yes") means descend.
It can just as easily mean do not descend. Yes, it's a predicate,
and yes, whether to descend is decided based on the return value.
But which return value means descend? "Whether" tells you no
more than "predicate" or "if".
Admittedly, this is not very important. Still, if we are going
to spend time and energy talking about this, we might as well
make it right.
next prev parent reply other threads:[~2016-05-01 14:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 22:06 bug#15047: 24.3.50; doc string of `find-listp-find-files' etc Drew Adams
2016-04-29 13:36 ` Lars Ingebrigtsen
2016-04-29 17:19 ` Drew Adams
2016-05-01 13:46 ` Michael Heerdegen
2016-05-01 14:28 ` Drew Adams [this message]
2016-05-01 15:12 ` Eli Zaretskii
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