Around 6 o'clock on Jul 8, Roger So wrote:

> Actually, if the font is a proper certified GB18030 font, then
> simplified characters will have simplified glyphs, and traditional
> characters traditional glyphs. (Han unification didn't unify simplified
> and traditional characters, fortunately [or unfortunately])

The question is whether we should mark certified GB18030 fonts as suitable 
for zh-TW as well as zh-CN.  I have the GB18030 varient of SimSun here in 
TrueType and it does not have the traditional Chinese codePageRange bit 
set, but does cover the codepoints found in Big5.

> I was thinking more on glyph designs and such; the Sung typeface used in
> China doesn't exactly much the Ming typeface used in Taiwan, for
> example.

If that's just varience in typographic style, we should make sure it 
doesn't influence language support.  Should a reader in zh-CN locale
use a Sung typeface for traditional Chinese?  Or should we direct them to 
a Ming typeface instead?

> Actually, a proper GB18030 font would have a superset of Big5, HKSCS and
> GB2312 characters.

Would it be appropriate to mark a GB18030 font as supporting 'zh' then?  
Right now, I'm using:

        gb2312          ->      zh-cn
        Big5            ->      zh-tw
        JIS X 0208      ->      ja
        KSC 5601        ->      ko

I could easily add:

        GB18030         ->      zh

As per your earlier suggestion, I will add:

        gb2312          ->      zh-sg
        Big5            ->      zh-mo

I don't have a complete codepoint set for HKSCS; can someone point me at 
one?

With these additions, a GB18030 font would advertise support for:

        zh, zh-cn, zh-tw, zh-sg, zh-mo

while older GB2312 fonts would be limited to

        zh-cn, zh-sg

Keith Packard        XFree86 Core Team        HP Cambridge Research Lab


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