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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.help
Subject: Re: Combining two short lisp routines
Date: Fri, 06 May 2011 11:04:51 -0300
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> (defun insert-definition (word)
>   "Search for WORD in dictionary, insert definition here."
>   (interactive "sWord:")
>   (switch-to-buffer "dict.txt")
>   (re-search-forward (concat "^" word)
>   (let ((text (buffer-substring (point)
>                                 (progn (end-of-line)
>                                        (point)))))
>      (other-buffer)
>      (insert text)))

Please, never call switch-to-buffer and/or other-buffer from such
Lisp code.  Use set-buffer instead.


        Stefan