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Re: character sets as they relate to “Raw” string literals for elisp


From: Eli Zaretskii
Subject: Re: character sets as they relate to “Raw” string literals for elisp
Date: Wed, 06 Oct 2021 15:13:34 +0300

> From: Daniel Brooks <db48x@db48x.net>
> Cc: eliz@gnu.org,  monnier@iro.umontreal.ca,  emacs-devel@gnu.org
> Date: Tue, 05 Oct 2021 15:13:20 -0700
> 
> > So it might be possible to say that many terminals support substantial
> > portions of Unicode, but it definitely is NOT right to say that we can
> > freely use any character we want and think they will work everywhere.
> 
> So one assumption that you might make is that new source code being
> added to Emacs must use characters from a version of Unicode which is
> known to have wide compatibility, rather than immediately jumping to the
> bleeding–edge version? That would be perfectly reasonable.

Except that it will only work if you use a very recent Emacs.  People
are still using Emacs 24 out there, and many are using Emacs 26, which
supports Unicode 11.0 (the latest version is 14.0).

And that's before we even begin to think about people who use other
programs to look at our files.



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