Re: What is a preferred charset?

[Eli Zaretskii <eliz@gnu.org>]

> From: Stephen Berman <stephen.berman@gmx.net>
> Cc: emacs-devel@gnu.org
> Date: Wed, 21 Nov 2018 17:48:37 +0100
> 
> > When text has the 'charset' property, we show its value as the
> > highest-priority charset of the characters having that property.  This
> > property is described in "Explicit Encoding".
> 
> On my system (where the value of locale-coding-system is utf-8-unix) the
> first entries in charset-priority-list are: ascii iso-8859-1 unicode
> latin-iso8859-1 ...  And calling char-charset on the character named
> INVERTED EXCLAMATION MARK returns "unicode" here.  That accords with
> what you both wrote above about highest priority, but...
> 
> > In the case of HELLO, each hello phrase was given the 'charset'
> > property corresponding to its language's script, so as to instruct
> > Emacs to choose the most appropriate font for that greeting.
> 
> ...this seems to be a different criterion for preferred, not the highest
> priority as defined above

Not a different criterion, it's just that the 'charset' text property
overrides the charset priority order (as you'd expect).