unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: interactive interface to supply variables
Date: Sun, 15 Dec 2013 01:46:49 +0100	[thread overview]
Message-ID: <87mwk3q6st.fsf@nl106-137-194.student.uu.se> (raw)
In-Reply-To: 87sitvq8jq.fsf@nl106-137-194.student.uu.se

Emanuel Berg <embe8573@student.uu.se> writes:

> I installed emacs24-el and in help-fns.el I saw how
> they did it in `describe-variable' - this is a
> variation of their method, only, to determine if it
> is a variable, they use
>
> (or (get vv 'variable-documentation)
>     (and (boundp vv)
>          (not (keywordp vv)))))
>
> while I use `boundp' only - I don't know what
> `keywordp' brings.

`keywordp' is to exclude keywords. Those are not
special forms like "defun", or even "if", but instead
:foreground, :bold, anything that starts with a colon.

`boundp' will always eval to t for those, as they are
bound to their names.

Perhaps it makes sense to exclude those, as those
aren't variables, for sure.

But this is possible

(defvar :var-looks-like-keyword)

though further assignment is not (?).

So I don't think I'll add that. It doesn't hurt to have
it say that :bold is :bold.

-- 
Emanuel Berg, programmer-for-rent. CV, projects, etc at uXu
underground experts united:  http://user.it.uu.se/~embe8573


  reply	other threads:[~2013-12-15  0:46 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-14 19:09 interactive interface to supply variables Emanuel Berg
2013-12-14 19:52 ` Juanma Barranquero
2013-12-15  4:58   ` Michael Heerdegen
     [not found]   ` <mailman.9280.1387083570.10748.help-gnu-emacs@gnu.org>
2013-12-15  5:23     ` Emanuel Berg
     [not found] ` <mailman.9242.1387050824.10748.help-gnu-emacs@gnu.org>
2013-12-14 20:46   ` Emanuel Berg
2013-12-14 21:01 ` Barry Margolin
2013-12-14 21:42   ` Emanuel Berg
2013-12-14 21:09 ` Jambunathan K
     [not found] ` <mailman.9258.1387055530.10748.help-gnu-emacs@gnu.org>
2013-12-14 21:46   ` Emanuel Berg
2013-12-14 21:51   ` Emanuel Berg
2013-12-15  5:41     ` Jambunathan K
     [not found]     ` <mailman.9281.1387086321.10748.help-gnu-emacs@gnu.org>
2013-12-15 18:14       ` Emanuel Berg
2013-12-15  0:09   ` Emanuel Berg
2013-12-15  0:46     ` Emanuel Berg [this message]
2013-12-14 23:39 ` Drew Adams

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87mwk3q6st.fsf@nl106-137-194.student.uu.se \
    --to=embe8573@student.uu.se \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).