ob-ruby org-babel-ruby-table-or-string numeric argument patch

ob-ruby org-babel-ruby-table-or-string numeric argument patch

[Matthew MacLean]

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Yo~!

fa5fd6351605912ec75e783cb626497b1ebe471e introduced a change where
org-babel-script-escape stopped accepting numbers. This caused an issue in
ob-ruby.el where when trying to evaluate something like "2 + 2", you would
get the message:

  `org-babel-script-escape' expects a string

This broke evaluation of Ruby code blocks.

I suspect this is not the only location where this problem might arise, so
I am submitting a patch so the function simply returns numbers if they are
passed in rather than dying. (Because numbers don't need to be escaped, and
this was the previous behaviour.)

Could you review my patch? Thanks..!

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diff --git a/lisp/ob-core.el b/lisp/ob-core.el
index e3abe97..01c4da8 100644
--- a/lisp/ob-core.el
+++ b/lisp/ob-core.el
@@ -2813,34 +2813,37 @@ block but are passed literally to the \"example-block\"."
       (error "Unterminated string in `org-babel-script-escape'"))
     (apply #'string (reverse out))))
 
-(defun org-babel-script-escape (str &optional force)
-  "Safely convert tables into elisp lists."
-  (unless (stringp str)
-    (error "`org-babel-script-escape' expects a string"))
-  (let ((escaped
-	 (cond
-	  ((and (> (length str) 2)
-		(or (and (string-equal "[" (substring str 0 1))
-			 (string-equal "]" (substring str -1)))
-		    (and (string-equal "{" (substring str 0 1))
-			 (string-equal "}" (substring str -1)))
-		    (and (string-equal "(" (substring str 0 1))
-			 (string-equal ")" (substring str -1)))))
-
-	   (concat "'" (org-babel--script-escape-inner str)))
-	  ((or force
-	       (and (> (length str) 2)
-		    (or (and (string-equal "'" (substring str 0 1))
-			     (string-equal "'" (substring str -1)))
-			;; We need to pass double-quoted strings
-			;; through the backslash-twiddling bits, even
-			;; though we don't need to change their
-			;; delimiters.
-			(and (string-equal "\"" (substring str 0 1))
-			     (string-equal "\"" (substring str -1))))))
-	   (org-babel--script-escape-inner str))
-	  (t str))))
-    (condition-case nil (org-babel-read escaped) (error escaped))))
+(defun org-babel-script-escape (val &optional force)
+  "Safely convert passed in values (including collections of
+them; tables) into elisp lists."
+  (if (numberp val)
+      val
+    (unless (stringp val)
+      (error "`org-babel-script-escape' expects a string or number"))
+    (let ((escaped
+	   (cond
+	    ((and (> (length val) 2)
+		  (or (and (string-equal "[" (substring val 0 1))
+			   (string-equal "]" (substring val -1)))
+		      (and (string-equal "{" (substring val 0 1))
+			   (string-equal "}" (substring val -1)))
+		      (and (string-equal "(" (substring val 0 1))
+			   (string-equal ")" (substring val -1)))))
+
+	     (concat "'" (org-babel--script-escape-inner val)))
+	    ((or force
+		 (and (> (length val) 2)
+		      (or (and (string-equal "'" (substring val 0 1))
+			       (string-equal "'" (substring val -1)))
+			  ;; We need to pass double-quoted strings
+			  ;; through the backslash-twiddling bits, even
+			  ;; though we don't need to change their
+			  ;; delimiters.
+			  (and (string-equal "\"" (substring val 0 1))
+			       (string-equal "\"" (substring val -1))))))
+	     (org-babel--script-escape-inner val))
+	    (t val))))
+      (condition-case nil (org-babel-read escaped) (error escaped)))))
 
 (defun org-babel-read (cell &optional inhibit-lisp-eval)
   "Convert the string value of CELL to a number if appropriate.

Re: ob-ruby org-babel-ruby-table-or-string numeric argument patch

[Nicolas Goaziou]

Hello,

Matthew MacLean <archenoth@gmail.com> writes:

> Could you review my patch? Thanks..!

Thank you for the patch.

> diff --git a/lisp/ob-core.el b/lisp/ob-core.el
> index e3abe97..01c4da8 100644
> --- a/lisp/ob-core.el
> +++ b/lisp/ob-core.el
> @@ -2813,34 +2813,37 @@ block but are passed literally to the \"example-block\"."
>        (error "Unterminated string in `org-babel-script-escape'"))
>      (apply #'string (reverse out))))
>  
> -(defun org-babel-script-escape (str &optional force)
> -  "Safely convert tables into elisp lists."
> -  (unless (stringp str)
> -    (error "`org-babel-script-escape' expects a string"))
> -  (let ((escaped
> -	 (cond
> -	  ((and (> (length str) 2)
> -		(or (and (string-equal "[" (substring str 0 1))
> -			 (string-equal "]" (substring str -1)))
> -		    (and (string-equal "{" (substring str 0 1))
> -			 (string-equal "}" (substring str -1)))
> -		    (and (string-equal "(" (substring str 0 1))
> -			 (string-equal ")" (substring str -1)))))
> -
> -	   (concat "'" (org-babel--script-escape-inner str)))
> -	  ((or force
> -	       (and (> (length str) 2)
> -		    (or (and (string-equal "'" (substring str 0 1))
> -			     (string-equal "'" (substring str -1)))
> -			;; We need to pass double-quoted strings
> -			;; through the backslash-twiddling bits, even
> -			;; though we don't need to change their
> -			;; delimiters.
> -			(and (string-equal "\"" (substring str 0 1))
> -			     (string-equal "\"" (substring str -1))))))
> -	   (org-babel--script-escape-inner str))
> -	  (t str))))
> -    (condition-case nil (org-babel-read escaped) (error escaped))))
> +(defun org-babel-script-escape (val &optional force)
> +  "Safely convert passed in values (including collections of
> +them; tables) into elisp lists."

First sentence in docstring has to fit in a single line.

> +  (if (numberp val)
> +      val
> +    (unless (stringp val)
> +      (error "`org-babel-script-escape' expects a string or number"))
> +    (let ((escaped

Arguably, a `cond' might look nicer:

  (cond ((numberp val) val)
        ((not (stringp val) (error ...)))
        (t (let ((escaped ...)) ...)))

Could you add a test for that in `test-org-babel/script-escape'
(test-ob.el)?


Regards,

-- 
Nicolas Goaziou

Re: ob-ruby org-babel-ruby-table-or-string numeric argument patch

[Kyle Meyer]

Hi Nicolas,

This is a duplicate that has finally come through:

http://thread.gmane.org/gmane.emacs.orgmode/99888


--
Kyle

Re: ob-ruby org-babel-ruby-table-or-string numeric argument patch

[Matthew MacLean]

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Yep..! Guess I know that unsubscribed mail doesn't actually go to /dev/null
like I heard it might.

The end result was commit 81a63729473baaf00c2548d8929b9388053aea05 sans the
test from http://thread.gmane.org/gmane.emacs.orgmode/99888 after a little
bit of "patch bootcamp" for someone who read README_contribute and didn't
see the relevant section on Worg.

That said, thanks for the review Nicolas--I'll keep it in mind if I send
another patch sometime.


On Sun, Aug 16, 2015 at 1:28 PM, Kyle Meyer <kyle@kyleam.com> wrote:

> Hi Nicolas,
>
> This is a duplicate that has finally come through:
>
> http://thread.gmane.org/gmane.emacs.orgmode/99888
>
>
> --
> Kyle
>

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