From: Drew Adams <drew.adams@oracle.com>
To: Emanuel Berg <moasenwood@zoho.eu>, help-gnu-emacs@gnu.org
Subject: RE: `if' in Elisp (was: Re: title-case function)
Date: Sun, 21 Apr 2019 12:34:55 +0000 (UTC) [thread overview]
Message-ID: <bc9552d1-305f-426d-ada1-1413cef98174@default> (raw)
In-Reply-To: <86lg03lkep.fsf_-_@zoho.eu>
> >> Do you mean using progn for the ELSE in the
> >> if expression? From the documentation on
> >> `if':
> >> (if COND THEN ELSE...)
> >> THEN must be one expression, but ELSE... can
> >> be zero or more expressions.
> > So yeah, progn is unnecessary.
>
> Unbelievable, when/how did this happen?!
After Lisp 1.5 and before Common Lisp v1 - 1970s probably.
For Emacs Lisp, it's been the case since Day One, I believe.
http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
https://en.wikipedia.org/wiki/Common_Lisp_the_Language
http://www.math.utah.edu/docs/info/elisp_10.html#SEC110
next prev parent reply other threads:[~2019-04-21 12:34 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-21 3:56 title-case function Paul W. Rankin
2019-04-21 5:29 ` Emanuel Berg
2019-04-21 6:40 ` Paul W. Rankin
2019-04-21 10:31 ` `if' in Elisp (was: Re: title-case function) Emanuel Berg
2019-04-21 12:34 ` Drew Adams [this message]
2019-04-21 14:02 ` Emanuel Berg
2019-04-21 5:57 ` title-case function Eli Zaretskii
2019-04-21 6:10 ` Emanuel Berg
2019-04-21 6:45 ` Paul W. Rankin
2019-04-21 7:20 ` Eli Zaretskii
2019-04-21 5:57 ` Jean-Christophe Helary
2019-04-21 12:45 ` Paul W. Rankin
2019-04-21 12:59 ` Jean-Christophe Helary
2019-04-21 13:25 ` Paul W. Rankin
2019-04-21 13:58 ` the English language part 2 (was: Re: title-case function) Emanuel Berg
2019-04-21 14:23 ` the English language part 2 Ralph Seichter
2019-04-21 14:32 ` Emanuel Berg
2019-04-21 14:42 ` Ralph Seichter
2019-04-21 15:08 ` Emanuel Berg
2019-04-21 15:21 ` Ralph Seichter
2019-04-22 4:13 ` Marcin Borkowski
2019-04-22 7:55 ` Paul W. Rankin
2019-04-22 21:21 ` Emanuel Berg
2019-04-22 21:31 ` Emanuel Berg
2019-04-25 22:58 ` Europe in 1648 (was: Re: the English language part 2) Emanuel Berg
2019-04-26 13:40 ` Ralph Seichter
2019-04-27 21:16 ` Emanuel Berg
2019-04-29 3:26 ` Europe in 1648 Van L
2019-04-21 15:22 ` the English language part 2 Drew Adams
2019-04-21 15:38 ` Jean-Christophe Helary
2019-04-21 16:16 ` Emanuel Berg
2019-04-21 13:45 ` title-case function Emanuel Berg
2019-04-21 13:37 ` the English language, again (was: Re: title-case function) Emanuel Berg
2019-04-21 13:38 ` Emanuel Berg
2019-04-22 16:41 ` Robert Thorpe
2019-04-22 21:44 ` Emanuel Berg
2019-04-23 2:35 ` Emanuel Berg
2019-04-24 11:56 ` the English language, again Van L
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