Re: [PATCH] Handle literal 'hline arguments passed to ruby.

[Carsten Dominik <carsten.dominik@gmail.com>]

Applied, thank.

Rick, I had trouble applying th patch, so did some handywork - please check after me.

Thank you!

- Carsten

On Aug 15, 2013, at 8:50 PM, Rick Frankel <rick@rickster.com> wrote:

> Solution shamelessly copied from ob-python.
> 
> * lisp/ob-ruby.el: New customizations `org-babel-ruby-hline-to' and
> `org-babel-ruby-nil-to'
> (org-babel-ruby-var-to-ruby): Convert incoming 'hlines.
> (org-babel-ruby-table-or-string): Convert outgoing nils.
> ---
> lisp/ob-ruby.el | 26 ++++++++++++++++++++++++--
> 1 file changed, 24 insertions(+), 2 deletions(-)
> 
> diff --git a/lisp/ob-ruby.el b/lisp/ob-ruby.el
> index 20fb418..d15d288 100644
> --- a/lisp/ob-ruby.el
> +++ b/lisp/ob-ruby.el
> @@ -50,6 +50,20 @@
> (defvar org-babel-ruby-command "ruby"
> "Name of command to use for executing ruby code.")
> 
> +(defcustom org-babel-ruby-hline-to "nil"
> +  "Replace hlines in incoming tables with this when translating to ruby."
> +  :group 'org-babel
> +  :version "24.4"
> +  :package-version '(Org . "8.0")
> +  :type 'string)
> +
> +(defcustom org-babel-ruby-nil-to 'hline
> +  "Replace 'nil' in ruby tables with this before returning."
> +  :group 'org-babel
> +  :version "24.4"
> +  :package-version '(Org . "8.0")
> +  :type 'string)
> +
> (defun org-babel-execute:ruby (body params)
> "Execute a block of Ruby code with Babel.
> This function is called by `org-babel-execute-src-block'."
> @@ -115,13 +129,21 @@ Convert an elisp value into a string of ruby source code
> specifying a variable of the same value."
> (if (listp var)
> (concat "[" (mapconcat #'org-babel-ruby-var-to-ruby var ", ") "]")
> -    (format "%S" var)))
> +    (if (equal var 'hline)
> +	org-babel-ruby-hline-to
> +      (format "%S" var))))
> 
> (defun org-babel-ruby-table-or-string (results)
> "Convert RESULTS into an appropriate elisp value.
> If RESULTS look like a table, then convert them into an
> Emacs-lisp table, otherwise return the results as a string."
> -  (org-babel-script-escape results))
> +  ((lambda (res)
> +     (if (listp res)
> +	 (mapcar (lambda (el) (if (equal el 'nil)
> +				  org-babel-ruby-nil-to el))
> +		 res)
> +       res))
> +   (org-babel-script-escape results)))
> 
> (defun org-babel-ruby-initiate-session (&optional session params)
> "Initiate a ruby session.
> -- 
> 1.8.0
> 
>