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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.devel
Subject: Re: Converting compositions to strings
Date: Mon, 30 Jan 2017 08:34:31 -0500
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> How can I reconstruct these strings from the value of the 'composition' text
> property?

This value is documented explicitly as being "internal! don't look at it!".


        Stefan