[PATCH] ob-gnuplot: Fix error on non-string :var assignment

[Ihor Radchenko <yantar92@gmail.com>]

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The following gnuplot code stopped working after recent commits adding
support of remote files:

#+CALL: stress-strain[:file stress-displ-RD-11.png](A=0.87, alpha=38.0, beta=7.0, inp="p11 DC.txt", tbl="stress-displ-RD-11.txt")

Note that the code assigns several numerical variables. ob-gnuplot from
master throws error when checking (file-remote-p ...).

The fix is attached.

Best,
Ihor


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From 8840afe1446177e5355e190fcaf6ce79d00ac0c6 Mon Sep 17 00:00:00 2001
From: Ihor Radchenko <yantar92@gmail.com>
Date: Wed, 16 Dec 2020 16:23:41 +0800
Subject: [PATCH] ob-gnuplot: Fix error on non-string :var assignment

* lisp/ob-gnuplot.el (org-babel-gnuplot-process-vars): Consider that
not all the variable values must be a string in :var assignments.
---
 lisp/ob-gnuplot.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/ob-gnuplot.el b/lisp/ob-gnuplot.el
index d0cedb7a3..708ac97e4 100644
--- a/lisp/ob-gnuplot.el
+++ b/lisp/ob-gnuplot.el
@@ -94,7 +94,8 @@ code."
 		      (tablep (or (listp first) (symbolp first))))
 		 (if tablep val (mapcar 'list val)))
 	       (org-babel-temp-file "gnuplot-") params)
-	    (if (and (file-remote-p val)  ;; check if val is a remote file
+	    (if (and (stringp val)
+		     (file-remote-p val)  ;; check if val is a remote file
 		     (file-exists-p val)) ;; call to file-exists-p is slow, maybe remove it
 		(let* ((local-name (concat ;; create a unique filename to avoid multiple downloads
 				org-babel-temporary-directory
-- 
2.26.2