From: Charles Berry <ccberry@ucsd.edu>
To: emacs-orgmode@gnu.org
Subject: Re: input data for babel blocks
Date: Tue, 1 Oct 2013 15:29:57 +0000 (UTC) [thread overview]
Message-ID: <loom.20131001T170542-940@post.gmane.org> (raw)
In-Reply-To: m2y56do1f2.fsf@polytechnique.org
Alan Schmitt <alan.schmitt <at> polytechnique.org> writes:
>
> Hi Charles,
>
> ccberry <at> ucsd.edu writes:
>
> > Lacking that, another alternative to the approach you have crafted is to
> > use elisp src blocks to set up the commands needed to create the
> > objects,
> > and then place the results of executing the elisp src block in the src
> > block of your favored language using noweb, for example
> >
> > #+BEGIN_SRC mylang :noweb yes
> > <<elisp-conversion-to-mylang("arg1","arg2")>>
> > #+END_SRC
> >
> > might convert 'arg2' to an object of the desired type named 'arg1' in a
> > 'mylang' src block.
>
> This looks like a very powerful approach, but it's a bit beyond my
> understanding of babel (which is limited) and noweb (whose existence I
> just discovered after reading http://orgmode.org/manual/noweb.html).
>
Sorry if it was a bit obtuse. The examples given by others seem to have
helped. And I will give one more.
[deleted]
> If you have an example that uses different languages, I'd love to look
> at it. I'll then try to write an example for ocaml.
>
Here is what I use for LaTeX thru elisp to R:
* Quote Blocks
quote-blks takes two args:
- blk :: a string of comma separated src block names
- sep :: an optional separator for use when there is more than one
block
I usually save it in a file and load it in with
(org-babel-lob-ingest file). But you can copy and paste and the example
below will still work.
#+name: quote-blks
#+BEGIN_SRC emacs-lisp :var blk="abc" :var sep="\"\n\""
(save-excursion
(replace-regexp-in-string "\"\"" ""
(mapconcat
(lambda (x)
(org-babel-goto-named-src-block x)
(format "%S" (cadr (org-babel-get-src-block-info t))))
(split-string blk "," t)
sep)
t t))
#+END_SRC
* example of use
The LaTeX here can be editted via C-c '
(i.e. org-edit-special --> org-edit-src-code).
#+name: lstuff
#+BEGIN_SRC latex :eval never :exports none
Here is a \backslash. And an unmatched quote: '.
#+END_SRC
Here is an example using it on the above block.
The cat statement prints a formatted version. The str statement shows
what R sees (but the outer quotes are not part of the string).
#+BEGIN_SRC R :noweb yes :results output
some.latex <-
<<quote-blks("lstuff")>>
cat(some.latex,"\n")
str(some.latex)
#+END_SRC
#+RESULTS:
: Here is a \backslash. And an unmatched quote: '.
: chr "Here is a \\backslash. And an unmatched quote: '."
HTH,
Chuck
next prev parent reply other threads:[~2013-10-01 15:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 12:50 input data for babel blocks Alan Schmitt
2013-09-30 16:26 ` Charles Berry
2013-10-01 0:08 ` Eric Schulte
2013-10-01 8:12 ` Alan Schmitt
2013-10-01 11:58 ` Eric Schulte
2013-10-01 13:01 ` Alan Schmitt
2013-10-01 14:29 ` Rick Frankel
2013-10-01 15:16 ` Alan Schmitt
2013-10-01 15:29 ` Charles Berry [this message]
2013-10-01 17:16 ` Alan Schmitt
2013-10-01 19:06 ` Thomas S. Dye
2013-10-01 0:04 ` Eric Schulte
2013-10-01 8:15 ` Alan Schmitt
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