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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Entering emojis
Date: Thu, 28 Oct 2021 19:04:58 +0300
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To: "T.V Raman" <raman@google.com>
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> From: "T.V Raman" <raman@google.com>
> Cc: emacs-devel@gnu.org
> Date: Thu, 28 Oct 2021 07:19:55 -0700
> 
> Perhaps we already get what I am about to say below from what you have,
> but given that there are 256 variation selectors, it might be useful to
> have a bigram/trigram model for chars that can meaningfully compose as
> an emoji?

AFAIK, only 4 variation selectors actually have any effect in the
available fonts (plus VS-15 and VS-16, which just select text or Emoji
appearance).