cursor keys break isearch with null search-exit-option

[Chris Moore]

If I evaluate this:

  (setq search-exit-option nil)

then hit C-s (which runs the command isearch-forward) and then press a
cursor key, I see an error:

  Debugger entered--Lisp error: (wrong-type-argument integerp right)
    concat("" [right])
    (setq isearch-string (concat isearch-string string)
isearch-message (concat isearch-message message))
    isearch-process-search-string([right] [right])
    isearch-other-control-char(nil)
    call-interactively(isearch-other-control-char)

(I also see the same error if I press pageup, pagedown, home, end, or
any of the function keys during an Isearch, by the way, although with
'f1', 'prior', etc. instead of 'right').

Chris.




In GNU Emacs 22.0.50.4 (i686-pc-linux-gnu, X toolkit)
 of 2005-04-01 on chrislap.orange.co.uk
Distributor `Mandrakelinux (X.Org X11 6.8.2, patch level 6mdk)',
version 11.0.60802000
Important settings:
  value of $LC_ALL: C
  value of $LC_COLLATE: en_US
  value of $LC_CTYPE: en_US
  value of $LC_MESSAGES: en_US
  value of $LC_MONETARY: en_GB
  value of $LC_NUMERIC: en_GB
  value of $LC_TIME: en_US
  value of $LANG: en_US
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t