(list-block-of-chars): Don't insert non-Unicode characters.

diff --git a/lisp/international/mule-diag.el b/lisp/international/mule-diag.el
index b3f3b7eb006f506dea0ccdebeb1cc11975f43a45..f9bb043989736a68dd85b1696480c42566b55ba2 100644 (file)
--- a/lisp/international/mule-diag.el
+++ b/lisp/international/mule-diag.el
@@ -255,11 +255,13 @@ detailed meanings of these arguments."
                   32
                 (or (decode-char charset (+ (* row 256) i))
                     32)))              ; gap in mapping
-      ;; Don't insert a control code.
+      ;; Don't insert control codes, non-Unicode characters.
       (if (or (< ch 32) (= ch 127))
          (setq ch (single-key-description ch))
        (if (and (>= ch 128) (< ch 160))
-           (setq ch (format "%02Xh" ch))))
+           (setq ch (format "%02Xh" ch))
+         (if (> ch #x10FFFF)
+             (setq ch 32))))
       (insert "\t" ch)
       (setq i (1+ i))))
   (insert "\n"))