On Sun, 28 Nov 2010, Sébastien Vauban wrote:
#+TITLE: 2 problems with executing block codes
#+DATE: 2010-11-28
#+LANGUAGE: en
Hi Eric and Dan,
* Abstract
Reporting two problems:
Did you mean to include ":results output" in the headers?
When I do that in eaco of the src blocks I get what I think you were
expecting.
See inline below.
Chuck
1. parsing problem of unescaped text from a shell block
2. end marker repeated upon execution of elisp block
Note that I added the RESULT thing in my default headers.
* Data
Let's say I want to grep trough arbitrary text, such as:
#+results:a-couple-of-lines
: He said "I'll do it"
: but that cannot be echo'ed!
... or to let it scanned by AWK for post-processing (like generating some DOT
representation).
But, first, as errors are popping up, let's say I can just output it as is.
* Shell code
#+begin_src sh :var data=a-couple-of-lines :exports both
echo "$data"
#+end_src
#+results:
#+BEGIN_RESULT
#+END_RESULT
#+begin_src sh :results output :var data=a-couple-of-lines :exports both
echo "$data"
#+end_src
#+results:
: He said "I'll do it"
: but that cannot be echo'ed!
The data is impossible (*for me*, as is) to print out from a shell code.
Though, it is in Emacs-Lisp... without any change.
Note that it's the second *single quote* only that's causing a problem, not
the first one...
* Emacs-Lisp code
Executing this:
#+begin_src emacs-lisp :var data=a-couple-of-lines :exports both
(prin1-to-string data)
#+end_src
#+results:
#+BEGIN_RESULT
#+begin_example
"He said \"I'll do it\"
but that cannot be echoed!"
#+END_RESULT#+end_example
#+end_example
#+end_example
#+end_example
#+end_example
#+end_example
#+end_example
#+end_example
#+end_example
works, but the *end marker is repeated* as long as we re-execute the block.
#+begin_src emacs-lisp results output :var data=a-couple-of-lines :exports
both
(prin1-to-string data)
#+end_src
#+results:
: "He said \"I'll do it\"
: but that cannot be echo'ed!"
Best regards,
Seb
--
Sébastien Vauban
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Charles C. Berry Dept of Family/Preventive Medicine
cbe...@tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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