Re: minor mode for highlighting character classes such as non-ascii (bug 47455)

[Óscar Fuentes]

"Roland Winkler" <winkler@gnu.org> writes:

> In the context of bug 47455 the idea emerged that it can be useful
> to have a minor mode that highlights non-ascii characters.  I want
> to ask hear for feedback: does such a mode already exist?  Can it be
> useful to have this minor mode more general such that the highlighted
> character classes become configurable?  Are there possible use cases
> for this beyond non-ascii characters?

Highlighting characters that does not belong to certain coding system
would be useful to me.

Sometimes I work on source code encoded as UTF-8 but they must not
contain characters not encodable by windows-1252. More precisely, string
literals must be composed of characters encodable by windows-1252.