[...]
> I'm getting the > prompt from my R session output
> with the cat() command. For example:
>
> #+name: test
> #+begin_src R :session r :results output raw :exports results
>
> cat(paste("#+end_center"))
> cat("\n")
>
> #+end_src
>
> #+RESULTS: test
> #+end_center>
>
> How do I stop that?
>
> As a side note... if I remove cat("\n"), nothing gets put into the
> #+results block -- it's just empty. I don't understand why.
>
Hi John,
This seems to be related to newlines and the parsing of session output.
Results aren't noticed without a newline, and when intermediately
printed results do not end in a newline, the prompt is pasted along with
the results.
If we look at the R session buffer, the cause of this bad behavior can
be seen.
,----[ESS buffer]
| > cat(paste("#+end_center"))
| cat("\n")
| 'org_babel_R_eoe'
| cat(paste("#+end_center"))
| #+end_center> cat("\n")
|
|
| > 'org_babel_R_eoe'
| [1] "org_babel_R_eoe"
`----
I'm not sure that we can (robustly and reasonably) distinguish the R
prompt from R process output when the prompt does not appear at the
start of a line. Perhaps ESS could mark R prompts with a special text
property which would make this much easier from the Org-mode side?
Is it possible simply to ensure that code block output lines end in
newlines?
Cheers,
--
Eric Schulte
http://cs.unm.edu/~eschulte
