* disp-table.el (display-table-print-array): New function.

(describe-display-table): Use it to print the vectors more pretty
(Bug#8859).

lisp/ChangeLog

@@ -1,3 +1,9 @@
+2011-07-02  Lars Magne Ingebrigtsen  <larsi@gnus.org>
+
+	* disp-table.el (display-table-print-array): New function.
+	(describe-display-table): Use it to print the vectors more pretty
+	(Bug#8859).
+
 2011-07-02  Martin Rudalics  <rudalics@gmx.at>
 
 	* window.el (window-state-get-1): Don't assign clone numbers.

lisp/disp-table.el

@@ -94,9 +94,27 @@ Valid symbols are `truncation', `wrap', `escape', `control',
 	(while (< i 256)
 	  (aset vector i (aref dt i))
 	  (setq i (1+ i)))
-	(describe-vector vector))
+	(describe-vector
+	 vector 'display-table-print-array))
       (help-mode))))
 
+(defun display-table-print-array (desc)
+  (insert "[")
+  (let ((column (current-column))
+	(width (window-width))
+	string)
+    (dotimes (i (length desc))
+      (setq string (format "%s" (aref desc i)))
+      (cond
+       ((>= (+ (current-column) (length string) 1)
+	    width)
+	(insert "\n")
+	(insert (make-string column ? )))
+       ((> i 0)
+	(insert " ")))
+      (insert string)))
+  (insert "]\n"))
+
 ;;;###autoload
 (defun describe-current-display-table ()
   "Describe the display table in use in the selected window and buffer."