Re: highlighting non-ASCII characters

[Ted Zlatanov]

On Fri, 26 Mar 2010 12:35:36 -0500 Ted Zlatanov <address@hidden> wrote: 

TZ> We can have a [:confusable:] character class defined in src/regex.c.
TZ> That lets us find these characters.  It could be generated from the TXT
TZ> database and augmented with our own mappings.  But there's grouping
TZ> information, so maybe that should be available too.  For highlighting we
TZ> don't need grouping information, but the user would find it useful to
TZ> look at a glyph and find out that it looks like 3 other glyphs.  So this
TZ> can be in a Lisp-level data structure like a hashtable with list values.

I forgot to mention this RFC is relevant as well, section 2.2.6:

http://www.ietf.org/rfc/rfc4690.txt

Like the IDN character class, the discussion centers on homoglyphs
inside domain names, but it mentions general relationship-based
confusable detection and points to further RFCs.

Ted