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From: Drew Adams <drew.adams@oracle.com>
To: Michael Heerdegen <michael_heerdegen@web.de>,
	Kaushal Modi <kaushal.modi@gmail.com>
Cc: 26564@debbugs.gnu.org
Subject: bug#26564: Document that only functions and not variables can end with "-p"
Date: Wed, 19 Apr 2017 15:04:59 -0700 (PDT)	[thread overview]
Message-ID: <dc474beb-b2e2-4d22-b695-038187c1874d@default> (raw)
In-Reply-To: <87d1c8dq5f.fsf@drachen>

> > -Examples are @code{framep} and @code{frame-live-p}.
> > +Examples are @code{framep} and @code{frame-live-p}.  This predicate
> > +suffix should not be used in variable names (i.e., you might name a
> > +variable @code{foo-feature} instead of @code{foo-feature-p}).
> 
> I think we should not discourage naming variables bound to a predicate
> "-p".  I guess you only mean "boolean variables" here?

I _would_ discourage that.

And I'd promote the practice of naming variables expected to
be bound to a Boolean _value_ with suffix `-p'.

Just as a predicate _returns_ a Boolean value, so does a
Boolean-valued variable.

A variable whose value is a _predicate_ I'd name something
like `foo-predicate' or `foo-pred' or even `foo-function'
(the last one following the current convention).





  reply	other threads:[~2017-04-19 22:04 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-19 15:47 bug#26564: Document that only functions and not variables can end with "-p" Kaushal Modi
2017-04-19 16:08 ` Eli Zaretskii
2017-04-19 16:22   ` Kaushal Modi
2017-04-19 21:49     ` Michael Heerdegen
2017-04-19 22:04       ` Drew Adams [this message]
2017-04-19 22:18         ` Michael Heerdegen
2019-10-12 20:27     ` Lars Ingebrigtsen
2019-10-12 20:47       ` Kaushal Modi
2019-10-12 23:18       ` Drew Adams
2019-10-14  1:50         ` Richard Stallman
2019-10-14  2:22           ` Drew Adams
2019-10-14  7:24             ` Eli Zaretskii
2019-10-14  7:21           ` Eli Zaretskii
2017-04-19 17:26 ` Drew Adams
2017-04-19 21:44   ` Michael Heerdegen
2017-04-19 22:01     ` Drew Adams
2017-04-19 22:23       ` Michael Heerdegen
2017-04-19 22:28         ` Drew Adams
2017-04-20  1:42           ` Drew Adams

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