From: "Idris Samawi Hamid" <ishamid@colostate.edu>
To: "mailing list for ConTeXt users" <ntg-context@ntg.nl>
Subject: Re: active strings in luatex?
Date: Sun, 13 Jan 2008 16:25:55 -0700 [thread overview]
Message-ID: <op.t4v51hpnnx1yh1@your-b27fb1c401> (raw)
In-Reply-To: <478A97CF.1020708@wxs.nl>
On Sun, 13 Jan 2008 15:59:27 -0700, Hans Hagen <pragma@wxs.nl> wrote:
>>> In luatex can I make a definition such that such that the string
>>>
>>> U004C U0303 (l ̃)
>>>
>>> is always treated as l with tilde above, taking into account italics
>>> and
>>> without using \~l (which does not work in, eg, footnote)?
>>
>> What you want here is to support the Unicode combining characters,
>> which isn't straightforward in TeX because according to the Standard,
>> they come after the base letter they modify, while TeX's accent commands
>> are, of course, typed before. So you can't simply make the combining
>> characters active and equivalent to the appropriate accent macros.
>
> if i know the precise specs i can build it into the utf collapser, which
> is way faster than dealing with tokens (mkiv will not have a token
> parser for the main input, at most for dedicated tasks)
This may be a good place to start:
http://www.unicode.org/versions/Unicode5.0.0/ch02.pdf
see pages 48--54
don't know if this is precise enough... See also pp.~109--117 of
http://www.unicode.org/versions/Unicode5.0.0/ch03.pdf
which seems even more precise. See also
http://www.unicode.org/versions/Unicode5.0.0/UnicodeBookIX.pdf
under "combining"
Best wishes
Idris
--
Professor Idris Samawi Hamid, Editor-in-Chief
International Journal of Shi`i Studies
Department of Philosophy
Colorado State University
Fort Collins, CO 80523
--
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next prev parent reply other threads:[~2008-01-13 23:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-28 18:29 Idris Samawi Hamid
2008-01-13 3:31 ` Arthur Reutenauer
2008-01-13 11:18 ` Taco Hoekwater
2008-01-13 14:38 ` Mojca Miklavec
2008-01-14 0:20 ` Arthur Reutenauer
2008-01-13 18:51 ` Arthur Reutenauer
2008-01-13 22:59 ` Hans Hagen
2008-01-13 23:25 ` Idris Samawi Hamid [this message]
2008-01-13 23:30 ` Arthur Reutenauer
2008-01-14 8:59 ` Hans Hagen
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