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Invoke occur from isearch?

From: Kai Großjohann
Subject: Invoke occur from isearch?
Date: Mon, 28 Apr 2003 17:28:25 +0200
User-agent: Gnus/5.09002 (Oort Gnus v0.20) Emacs/21.3.50 (gnu/linux)

Maybe it would be useful to get a list of occurrences of the current
isearch string?  This was discussed on gnu.emacs.help.  Johan
Bockgård suggested an implementation.  I shortened it and now I have
the following:

(defun isearch-occur ()
  "Invoke `occur' from within isearch."
  (let ((case-fold-search isearch-case-fold-search))
    (occur (if isearch-regexp isearch-string (regexp-quote isearch-string)))))
(define-key isearch-mode-map (kbd "C-o") 'isearch-occur)

What do people think?
file-error; Data: (Opening input file no such file or directory ~/.signature)

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