Re: [PATCH] Unicode Lisp reader escapes

[Stefan Monnier]

>> Handa says that telling people "don't use utf-8" solves the problem.
>     Additionally to "don't use unify-8859-on-decoding" which causes
>     similar problems (which we already bumped into a few years ago when we
>     included unify-8859-on-decoding) with iso8859 chars and coding systems
>     like iso-2022.

> There is a way for a Lisp file to specify a coding system which isn't
> utf-8.  Is there a way for a Lisp file to specify that
> unify-8859-on-decoding should not be used when reading it?

> If not, maybe we should make one.

> Here's one idea: if the -*- line specifies `coding' and specifies
> the mode `emacs-lisp' then force unify-8859-on-decoding to nil
> for that file.

Forcing it to nil for a particular file is maybe too much work to implement
compared to th benefit.
Maybe an easier solution is to add a file-local variable
`no-8859-unification' such that if that file is loaded in an Emacs which
is configured to use unify-8859-on-decoding it signals an error.

It could then be added to files like ucs-tables.el.


        Stefan