RE: highlighting non-ASCII characters

[Drew Adams]

I haven't been following this thread; sorry.

But it occurred to me that besides different categories of such critters there
might be different levels of fontification details that users might want to see.

For example, for some users or for some purposes, it might be useful to see
different kinds of quote marks distinguished (e.g. different kinds of curly
quotes that might be homoglyphs or curly vs straight quotes, which are not
homoglyphs). For other users or for other purposes such highlighting would be a
distraction.

Font-lock verbosity levels allow for this kind of thing.