Fix ses-delete-blanks to delete only blanks + documentation.

* doc/misc/ses.texi (Quick Tutorial): Mention the '!'
'ses-range' modifier as an alternative to 'ses+'.
(Advanced Features): Add a refernce to node 'Nonrelocatable
references' concerning function 'ses-rename-cell'.
(Standard formula functions): Mention the '!' 'ses-range'
modifier as an alternative to 'ses-delete-blanks'.
(More on cell printing): Fix fallback printer
definition.  Minor editorial formatting changes.
(Nonrelocatable references): Document the use of
'ses-rename-cell' as a better way to make cell reference
non-relocatable.
(The data area): Document the presence of local printer
definitions in the data area.

* lisp/ses.el (ses-delete-blanks): Do not remove
*error*.  Any error in an argument should propagate into the
using formula rather than being silently hidden !

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/ses.el b/lisp/ses.el
index 0b38af41a8b..b379ef1f9c6 100644
--- a/lisp/ses.el
+++ b/lisp/ses.el
@@ -1,3 +1,4 @@
+
 ;;; ses.el -- Simple Emacs Spreadsheet  -*- lexical-binding:t -*-
 
 ;; Copyright (C) 2002-2016 Free Software Foundation, Inc.
@@ -3746,7 +3747,7 @@ Use `math-format-value' as a printer for Calc objects."
   "Return ARGS reversed, with the blank elements (nil and *skip*) removed."
   (let (result)
     (dolist (cur args)
-      (unless (memq cur '(nil *skip* *error*))
+      (unless (memq cur '(nil *skip*))
         (push cur result)))
     result))