bug#19622: 25.0.50; Spell checking and Unicode don't mix...

[Eli Zaretskii]

> Date: Mon, 19 Jan 2015 08:15:01 -0500
> From: "Perry E. Metzger" <perry@piermont.com>
> Cc: 19622@debbugs.gnu.org
> 
> > It's up to the speller, so it isn't an Emacs problem/bug/issue.  The
> > characters that are word constituent are stated in the .aff file for
> > the language you use, and they come with the speller (and are
> > tailored to what the speller does and doesn't know about the word
> > structure). Emacs cannot fix that.
> 
> Emacs could replace punctuation on its way down the pipe to
> the inferior process if it wishes to as a stop gap.

Wouldn't some users object to such replacements?  They could mask
mis-spelled words.

Also, how would Emacs know that the replacement will DTRT with the
speller which is being used?  Each speller has its own capabilities
and rules wrt word morphology.  These are described by the .aff files,
but Emacs is too dumb to understand those rules; the only thing it
knows is how to fetch WORDCHARS and non-WORDCHARS from there.

IOW, I'm not at all sure this is a problem that Emacs could and should
fix.  Why not report it upstream to the developers of the speller you
use?