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[O] How to tangle org file with option comments yes in batch mode

From: Leandro Henrique Oliveira Fernandes
Subject: [O] How to tangle org file with option comments yes in batch mode
Date: Mon, 10 Aug 2015 11:49:19 -0700


I am trying to tangle a file in batch mode using the script bellow:

emacs.exe  -Q --batch --no-init-file -l init.el --visit file.org -f org-babel-tangle --kill

== init.el ===

(require 'org)
(require 'org-exp)
(require 'ob)
(require 'ob-tangle)
(require 'ob-R)

 '((R . t)
   (latex . t)
   (sh . t)
   (plantuml . t)
   (emacs-lisp . t)

;; For windows
(setq org-babel-R-command "\"C:/Users/XX/Documents/R/R3.2.0/bin/i386/Rterm.exe --ess --slave --no-save\"")

== end file ==


== file.org == 

-*- mode: org; mode: auto-fill; fill-column: 76 -*-

# Babel settings
#+PROPERTY: session *R*
#+PROPERTY: comments yes
#+PROPERTY: results output
#+PROPERTY: exports none

* Simple babel block

#+name: setup_block
#+begin_src R :tangle Rcode/setup_block.R :exports none :session

  proj.dir <- getwd()
  cat("Proj dir: ", proj.dir,"\n")


== end file ==

When I set #+PROPERTY: comments no, I am able to tangle the file file.org. However when I set  #+PROPERTY: comments yes I have got this message:

c:/Program\ Files\ \(x86\)/GNU\ Emacs\ 24.3/bin/emacs.exe -Q --batch --no-init-file -l init.el --visit file.org -f org-babel-tangle --kill
Loading vc-svn...
(No changes need to be saved)
No comment syntax is defined.  Use: 

If I just press enter I end up with the error code:

No comment syntax defined
make: *** [tangle] Error 127

The file I want to tangle is a large file with a lot of org-babel blocks. I understand that the comment is not defined, but I don't know how to set it.

I am running emacs on windows:
GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601)
Org-mode version 8.3.1

Anyone can help me with that?



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