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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Feature needed
Date: Thu, 17 Jun 2010 15:26:44 -0400
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To: Miles Bader <miles@gnu.org>
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In-reply-to: <buoljaedowb.fsf@dhlpc061.dev.necel.com> (message from Miles
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    The resulting
    prompt supports completion (including non-initial completion by
    using "* something TAB"), it's reasonably easy to find the name even
    if you only know part of it.

That was quite interesting.  It is nice.  Except that constructing the
value of ucs-completions is so slow.

Reading the same list with `read' is much faster.

So it seems to me there must be a way to speed up the
creation of this list.