Re: Unicode and text editors

[Heime via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

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On Monday, December 9th, 2024 at 8:43 AM, Eli Zaretskii <eliz@gnu.org> wrote:

> > Date: Sun, 08 Dec 2024 19:39:55 +0000
> > From: Heime heimeborgia@protonmail.com
> > Cc: help-gnu-emacs@gnu.org
> > 
> > On Monday, December 9th, 2024 at 7:07 AM, Eli Zaretskii eliz@gnu.org wrote:
> > 
> > > > Date: Sun, 08 Dec 2024 18:55:52 +0000
> > > > From: Heime heimeborgia@protonmail.com
> > > > Cc: help-gnu-emacs@gnu.org
> > > > 
> > > > > I was talking about Emacs. Your original question was about other
> > > > > editors. I'm not familiar with other modern editors enough to tell
> > > > > whether you should or should not worry. In particular, I don't know
> > > > > how they recognize UTF-8, and am not sure that Emacs coding cookies
> > > > > are supported by them.
> > > > 
> > > > Is it reasonable to expect that UTF-* characters are recognised and supported?
> > > 
> > > Reasonable? yes. But the problem is not trivial: Emacs itself not
> > > always recognizes UTF-8 reliably. So there could be problems.
> > > 
> > > > What is your school of thought regarding emacs?
> > > 
> > > I don't understand the question, sorry.
> > 
> > Should we comfortable use UTF Characters in source code when using Emacs?
> > When there are problems, do they usually get looked into and fixed if possible?
> 
> 
> If you are talking about Emacs, then my recommendation is to always
> use a coding: cookie. Then it's 100% reliable when Emacs reads the
> file.

What would one have to do exactly?