`int-to-char' returns a char even if arg is negative

Hi, I am using 21.5.2 CVS (main trunk). Is the following behavior correct? (int-to-char -51) => ?\^^M If so, we should modify mule-packages/egg-its/egg.el not to use negative numbers for `int-to-char'. Because of this behavior, Egg often hangs up when I mis-type (e.g. C--) in the fence-mode. Here is a patch for egg.el: 2001-08-21 Katsumi Yamaoka <yamaoka(a)jpl.org&gt; * egg.el (egg-read-event): Don't specify a negative number to `int-to-char'. --- mule-packages/egg-its/egg.el~ Tue May 8 11:18:52 2001 +++ mule-packages/egg-its/egg.el Tue Aug 21 09:29:36 2001 ＠＠ -166,8 +166,12 ＠＠ (if (eq 1 (event-modifier-bits event)) (setq ch (if (characterp key) - (or (int-to-char (- (char-to-int key) 96)) - (int-to-char (- (char-to-int key) 64))) + (progn + (setq key (char-to-int key)) + (or (and (>= key 96) + (int-to-char (- key 96))) + (and (>= key 64) + (int-to-char (- key 64))))) (event-to-character event))) (setq unread-command-events (list event)))) (setq unread-command-events (list event)))