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From: Richard Stallman <rms@gnu.org>
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Subject: Re: Rationale for split-string?
Date: Sat, 19 Apr 2003 09:35:44 -0400
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    (defun split-string-sanely-too (string &optional separators)
      (let ((result (xemacs-split-string string separators)))
	(cond ((stringp separators)        result)
	      ((eq separators 'omit-nulls) (delete "" result))
	      (t (error 'invalid-argument
			"SEPARATORS must be a string or 'omit-nulls"
			separators)))))

This seems like a good approach, but I would rather use t instead
of `omit-nulls'.