Subject: 23.3; isearch-search-and-update issue?

From: Andy Grover <[email-masked]>
Date: Sun, 29 Apr 2012 15:31:48 -0700

Hi I'm trying to use the following macro as defined on the emacs wiki:

http://emacswiki.org/emacs/SearchAtPoint#toc10

(defun my-isearch-word-at-point ()
  (interactive)
  (call-interactively 'isearch-forward-regexp))

(defun my-isearch-yank-word-hook ()
  (when (equal this-command 'my-isearch-word-at-point)
    (let ((string (concat "\\_<"
                          (buffer-substring-no-properties
                           (progn (skip-syntax-backward "w_") (point))
                           (progn (skip-syntax-forward "w_") (point)))
                          "\\_>")))
      (if (and isearch-case-fold-search
               (eq 'not-yanks search-upper-case))
          (setq string (downcase string)))
      (setq isearch-string string
            isearch-message
            (concat isearch-message
                    (mapconcat 'isearch-text-char-description
                               string ""))
            isearch-yank-flag t)
      (isearch-search-and-update))))

(add-hook 'isearch-mode-hook 'my-isearch-yank-word-hook)

(global-set-key "\M-8" 'my-isearch-word-at-point)

However, it's saying "wrong type argument: arrayp nil" sometimes.

Am I doing something wrong or is this a bug?

Thanks -- Andy

In GNU Emacs 23.3.1 (x86_64-redhat-linux-gnu, GTK+ Version 2.24.8)
 of 2012-01-13 on x86-04.phx2.fedoraproject.org
Windowing system distributor `Fedora Project', version 11.0.11104000
configured using `configure  '--build=x86_64-redhat-linux-gnu'
'--host=x86_64-redhat-linux-gnu' '--program-prefix='
'--disable-dependency-tracking' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64'
'--libexecdir=/usr/libexec' '--localstatedir=/var'
'--sharedstatedir=/var/lib' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--with-dbus' '--with-gif' '--with-jpeg'
'--with-png' '--with-rsvg' '--with-tiff' '--with-xft' '--with-xpm'
'--with-x-toolkit=gtk' 'build_alias=x86_64-redhat-linux-gnu'
'host_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
-pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4  -m64 -mtune=generic' 'LDFLAGS=-Wl,-z,relro ''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.utf8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  which-function-mode: t
  show-paren-mode: t
  desktop-save-mode: t
  cua-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> M-e
M-e M-q M-e M-e <down> <down> <down> <down> <down>
<down> <left> <left> <left> <left> <left> <left> <left>
<left> <left> <left> ; ; C-x C-s M-e M-e M-e C-s i
s e a r c h - y a n k - f l a g C-s C-s C-s C-s C-s
C-s <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
C-s C-s C-s C-s C-s C-s C-s <up> <up> <up> <down-mouse-1>
<mouse-1> <down> <down> <down> M-x f i l <tab> l <tab>
c <tab> <return> C-h C-h C-h C-g C-g C-h v f i l l
<tab> c o l <tab> <return> C-x 1 M-e M-e M-e <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> M-e M-q <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <backspace> <backspace> <down> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <down> C-x C-e <up> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> M-8 M-8 M-8 M-8 M-8 <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <help-menu> <send-emacs-bug
-report>

Recent messages:
Saving file /home/agrover/git/conffiles/.emacs.d/init.el...
Wrote /home/agrover/git/conffiles/.emacs.d/init.el
Mark saved where search started [2 times]
Making completion list...
Quit
Type C-x 1 to delete the help window.
my-isearch-yank-word-hook
isearch-search-and-update: Wrong type argument: arrayp, nil
Mark saved where search started
isearch-search-and-update: Wrong type argument: arrayp, nil [3 times]
isearch-search-and-update: Wrong type argument: arrayp, nil

Load-path shadows:
None found.

Features:
(shadow sort mail-extr message ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1
hex-util hashcash mail-utils emacsbug pp jka-compr find-func help-mode
view help-fns newcomment multi-isearch hideshow which-func imenu cc-mode
cc-fonts easymenu cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs regexp-opt hi-lock vc-git midnight swbuff ido saveplace paren
desktop cua-base cus-start cus-load tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset
image fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mldrag mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help
simple abbrev loaddefs button minibuffer faces cus-face files
text-properties overlay md5 base64 format env code-pages mule custom
widget hashtable-print-readable backquote make-network-process dbusbind
system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)