From: Eric Schulte <schulte.eric@gmail.com>
To: "András Major" <andras.g.major@gmail.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: Wishlist: allow range of table elements to be filled by sbe
Date: Fri, 19 Aug 2011 07:17:47 -0600 [thread overview]
Message-ID: <878vqpo39j.fsf@gmail.com> (raw)
In-Reply-To: CALPHr6wq9F4J_=92KwaRXhTrec625Wts=c4neckNrPD314xq5Q@mail.gmail.com
András Major <andras.g.major@gmail.com> writes:
> Hi,
>
> I'd like to use a babel code block to fill a table with values. The
> sbe elisp function looks like the right thing for this task, but it
> appears that the result of the code block always goes into a single
> cell of a table. I can specify ranges of values, but then the entire
> output is placed into each of the specified cells.
>
> Here is how I imagine things should work:
>
> #+srcname: shcode
> #+begin_src sh :exports output table silent
> echo "1 2 3"
> #+end_src
>
> | 1 | 2 | 3 |
> #+TBLFM: $1..$3='(sbe shcode)
>
> Note that this is *NOT* real output from the code block in the current
> version of org-mode, it's what I want it to be. There are two things
> that cause this to break at the moment:
>
> - The range $1..$3 doesn't work, I have to prepend a row specifier as
> in @<$1..@>$3 or suchlike, which is rather counterintuitive but
> seems to work.
>
> - The output "1 2 3" are not separated into the various cells but all
> placed into each cell.
>
> Or am I doing something wrong here?
>
sbe is just an elisp function which is called by the Org-mode
spreadsheet's function evaluation mechanisms. The spreadsheet does not
allow for insertion of results into multiple cells and thus neither does
the use of sbe. I would recommend a solution like the following, which
reads the /entire/ table into a code block, and writes the results out
in place.
#+results: this-is-the-table
| 1 | 4 | 7 |
| 2 | 5 | 8 |
| 3 | 6 | 9 |
#+source: this-is-the-table
#+begin_src emacs-lisp :var table=this-is-the-table
(mapcar (lambda (row) (mapcar (lambda (cell) (* cell 2)) row)) table)
#+end_src
Every time the code block is evaluated multiple cells in the table are
changed. To only set specific table values use of the `setf' macro
would probably be more appropriate.
Hope this helps -- Eric
--
Eric Schulte
http://cs.unm.edu/~eschulte/
next prev parent reply other threads:[~2011-08-19 15:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-19 7:22 Wishlist: allow range of table elements to be filled by sbe András Major
2011-08-19 13:17 ` Eric Schulte [this message]
2011-08-19 18:59 ` András Major
2011-08-19 22:22 ` Eric Schulte
2011-08-19 20:46 ` Michael Brand
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