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From: Ted Zlatanov <tzz@lifelogs.com>
To: emacs-devel@gnu.org
Subject: Re: Recent change to describe-variable
Date: Mon, 04 Apr 2011 04:41:56 -0500	[thread overview]
Message-ID: <87r59ibbff.fsf@lifelogs.com> (raw)
In-Reply-To: 874o6gur58.fsf@stupidchicken.com

On Sat, 02 Apr 2011 20:15:15 -0400 Chong Yidong <cyd@stupidchicken.com> wrote: 

CY> The completion function for describe-variable now uses the predicate
CY>   (lambda (vv)
CY>     (or (special-variable-p vv)
CY>         (get vv 'variable-documentation)))

CY> This breaks using C-h v to examine let-bound variables in Lisp
CY> backtraces.

CY> Also, when coding I sometimes do (setq foo 1), and use C-h v to examine
CY> the placeholder variable later on; this now fails.

CY> There doesn't seem to be any good reason to restrict the completion this
CY> way.

I think I reported this.  It is too wide without that predicate.  See
http://thread.gmane.org/gmane.emacs.devel/137048

So if `C-h v' AKA `describe-variable' is going to describe everything,
it should at least filter out self-quoting :symbols, and I think it
makes sense to provide a `describe-emacs-variable' to use the predicate
above, adjusting for let-bound variables.

Ted




  parent reply	other threads:[~2011-04-04  9:41 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-03  0:15 Recent change to describe-variable Chong Yidong
2011-04-03  0:33 ` Drew Adams
2011-04-04  9:41 ` Ted Zlatanov [this message]
2011-04-04 10:23   ` Juanma Barranquero
2011-04-04 10:41     ` Ted Zlatanov
2011-04-04 13:03     ` Drew Adams
2011-04-04 13:34       ` Ted Zlatanov
2011-04-04 14:46       ` Juanma Barranquero
2011-04-04 16:08     ` Chong Yidong
2011-04-04 16:11       ` Juanma Barranquero
2011-04-04 13:46 ` Stefan Monnier
2011-04-04 17:05   ` Chong Yidong
2011-04-04 21:47     ` Stefan Monnier
2011-04-04 22:09       ` Juanma Barranquero
2011-04-04 22:24         ` Juanma Barranquero

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