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From: Nick Dokos <nicholas.dokos@hp.com>
To: Thorsten <quintfall@googlemail.com>
Cc: nicholas.dokos@hp.com, emacs-orgmode@gnu.org
Subject: Re: [babel] What is `, (backquote comma)?
Date: Wed, 21 Sep 2011 14:42:15 -0400	[thread overview]
Message-ID: <30382.1316630535@alphaville.dokosmarshall.org> (raw)
In-Reply-To: Message from Thorsten <quintfall@googlemail.com> of "Wed, 21 Sep 2011 19:37:42 +0200." <867h51x0d5.fsf@googlemail.com>

Thorsten <quintfall@googlemail.com> wrote:

> Hi List, 
> 
> in org-babel-expand-body:scheme (and
> e.g. org-babel-expand-body:emacs-lisp) I encounter something like this:
> 
> (lambda (var)  (format "%S" (print `(,(car var) ',(cdr var)))))
> 	
> While this part
> `(,(car var) ...)
> is explained in the manual (backquote and unquote), this part
> `(... ',(cdr var))
> is a bit mysterious to me, and I do not find information about
> backquote( ... backquote comma ())
> in the manuals or the web.
> 
> Is that Emacs Lisp? What does that mean?

If you write it like this:

`(,(car var) (quote ,(cdr var)))

does it become clearer? This form is equivalent to the previous one.

Nick

  reply	other threads:[~2011-09-21 18:42 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-21 17:37 [babel] What is `, (backquote comma)? Thorsten
2011-09-21 18:42 ` Nick Dokos [this message]
2011-09-21 18:45 ` Nick Dokos
2011-09-21 18:46 ` Štěpán Němec
2011-09-21 19:05   ` Thorsten
2011-09-21 19:26     ` Štěpán Němec
2011-09-22  2:53       ` Jude DaShiell
2011-09-21 19:48     ` Jambunathan K
2011-09-21 22:02       ` Thorsten
2011-09-22  7:10       ` peter.frings

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