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From: Drew Adams <drew.adams@oracle.com>
To: Marcin Borkowski <mbork@mbork.pl>,
	Help Gnu Emacs mailing list <help-gnu-emacs@gnu.org>
Subject: RE: Why is booleanp defined this way?
Date: Fri, 17 Apr 2015 19:37:28 -0700 (PDT)	[thread overview]
Message-ID: <44598fef-6532-4b70-b3b1-c85edb0582f9@default> (raw)
In-Reply-To: <87siby7au6.fsf@mbork.pl>

If you grep for `booleanp' in the Emacs Lisp sources you will
see that it is used pretty much exclusively as the value of
property `safe-local-variable'.

IOW, it is used (only) to declare that the value of this or
that variable can be considered "safe" if it is `t' or `nil'.
That's all.



  parent reply	other threads:[~2015-04-18  2:37 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-17 20:34 Why is booleanp defined this way? Marcin Borkowski
2015-04-17 20:49 ` Jorge A. Alfaro-Murillo
     [not found] ` <mailman.962.1429303822.904.help-gnu-emacs@gnu.org>
2015-04-17 23:06   ` Emanuel Berg
2015-04-18  0:41     ` Pascal J. Bourguignon
2015-04-18  1:06       ` Emanuel Berg
2015-04-18  1:23         ` Pascal J. Bourguignon
2015-04-18  7:44         ` Marcin Borkowski
2015-04-18  8:37         ` Stefan Nobis
2015-04-19 23:15           ` Emanuel Berg
2015-04-18  2:37 ` Drew Adams [this message]
2015-04-18  6:13 ` Tassilo Horn
     [not found] <mailman.946.1429302909.904.help-gnu-emacs@gnu.org>
2015-04-17 20:55 ` Pascal J. Bourguignon
2015-04-17 23:20 ` Barry Margolin
2015-04-17 23:30   ` Emanuel Berg
2015-04-18  0:43     ` Pascal J. Bourguignon
2015-04-18  3:13       ` Barry Margolin
2015-04-18  3:12     ` Barry Margolin
2015-04-18  2:01 ` Rusi
2015-04-18  2:23   ` Emanuel Berg
2015-04-18  2:33     ` Rusi
2015-04-18  2:55       ` Emanuel Berg
2015-04-18  3:11         ` Barry Margolin
2015-04-18  3:35           ` Rusi
2015-04-18  4:56             ` Barry Margolin
2015-04-19 23:08               ` Emanuel Berg
2015-04-19 23:00             ` Emanuel Berg
2015-04-18 21:24           ` Emanuel Berg
2015-04-18  7:52         ` Marcin Borkowski
     [not found]         ` <mailman.997.1429343558.904.help-gnu-emacs@gnu.org>
2015-04-18 12:43           ` Rusi
2015-04-18  4:09       ` Pascal J. Bourguignon
2015-04-18  5:00         ` Rusi
2015-04-18  3:50   ` Pascal J. Bourguignon
2015-04-18  5:03     ` Stefan Monnier

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