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From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Mojca Miklavec <mojca.miklavec.lists@gmail.com>
Subject: Re: unicode error
Date: Sun, 26 Sep 2010 13:14:40 +0200	[thread overview]
Message-ID: <4C9F2B20.8080801@wxs.nl> (raw)
In-Reply-To: <AANLkTin1-NKyVGT4NCvy-d0s3DKHO7q+RXbLM-G5tpWB@mail.gmail.com>

On 25-9-2010 8:30, Mojca Miklavec wrote:
> On Sat, Sep 25, 2010 at 20:25, Alan BRASLAU wrote:
>> An obscure unicode error, minimal example:
>>
>> \starttext
>> (≡) should be ($\equiv$)
>> \stoptext
>
> Well, this works: $≡$
> (This is not to say that the character ≡ alone should not work, but it
> may be that it is simply missing in the text font and no mechanism is
> there that would switch to "math mode".)

indeed. of course one could use the math font as base font as well, but 
that would complicate matters a bit as we use a virtual font (so instead 
of the default set one would need to specify multiple featuresets, which 
actually is supported)

another solution is do define fallbacks but I have no time right now to 
do that (it would slow down loading a bit); some time in the future we 
will have the option in luatex to add missing glyphs to a font using a 
'missign glyph' callback but this is quite tricky as there is state to 
be kept)

making all math characters active and resolve to math could be a 
solution too but this is not always wanted either (so we should need 
exceptions etc etc then)

Hans

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  reply	other threads:[~2010-09-26 11:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-25 18:25 Alan BRASLAU
2010-09-25 18:30 ` Mojca Miklavec
2010-09-26 11:14   ` Hans Hagen [this message]
2010-09-26  0:41 ` Li Yanrui (李延瑞)

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