On Sat, Jan 08, 2011 at 02:59:35PM -0500, Aditya Mahajan wrote:
> On Sat, 8 Jan 2011, Khaled Hosny wrote:
> 
> >On Sat, Jan 08, 2011 at 12:52:38PM -0500, Aditya Mahajan wrote:
> >>On Sat, 8 Jan 2011, Daniel Schopper wrote:
> >>
> >>>Hi,
> >>>are the delimiters \lgroup and \rgroup supported in MkIV?
> >>>This
> >>>
> >>>\starttext
> >>>$$\bigg\lgroup\dots\bigg\rgroup$$
> >>>\stoptext
> >>>
> >>>is ok in MkII (ConTeXt ver: 2011.01.06) but when compiled with
> >>>MkIV (ConTeXt ver: 2010.07.30 11:35 and ver: 2010.07.30 11:35) the
> >>>delimiters are not shown. (By the way, the same holds true for
> >>>\rmoustache and \lmoustache.)
> >>
> >>>Am I missing something?
> >>
> >>No. The math mappings of virtual fonts are incomplete. The symbols
> >>should work correctly with unicode math fonts like cambria, asana,
> >>and xits. But, it appears that lgroup and rgroup are missing from
> >>xits (Khaled?)
> >
> >There are, but context is looking for the wring character; it is looking
> >for U+3014 (which I think is a CJK bracket and does not look like
> >\lgroup either) while it should be looking for U+27EE (whose Unicode
> >annotation precisely says "lgroup"):
> 
> Hmm ... 27EE does not exist: http://unicode.org/charts/PDF/U32-27C0.pdf
> I believe that I used 3014 based on
> http://www-sop.inria.fr/apics/tralics/doc-l.html#cmd-lgroup
> 
> What source do you use for the symbols?

I opened Gnome's Character Map and searched for lgroup :) (but I've seen
it before, so I know it exists, I just don't recall the code point). Now
that you asked, I checked Unicode website and they have "Miscellaneous
Mathematical Symbols-A":

http://unicode.org/charts/PDF/U27C0.pdf

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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