From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: [babel] What is `, (backquote comma)?
Date: Wed, 21 Sep 2011 14:42:15 -0400
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In-Reply-To: Message from Thorsten <quintfall@googlemail.com>
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To: Thorsten <quintfall@googlemail.com>
Cc: nicholas.dokos@hp.com, emacs-orgmode@gnu.org

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