Re: ConTeXt meeting Lua tutorials

[Khaled Hosny <khaledhosny@eglug.org>]

On Wed, Aug 25, 2010 at 11:17:13AM +0200, Hans Hagen wrote:
> On 25-8-2010 10:05, Steffen Wolfrum wrote:
> >
> >Am 24.08.2010 um 20:37 schrieb Oliver Buerschaper:
> >
> >>>Hi all,
> >>>
> >>>Today I started preparations for my activities at the ConTeXt meeting.
> >>>
> >>>There are two small lua tutorials in the program, and I am looking
> >>>for input on both. There is one that is supposed to be a general
> >>>beginner's introduction, and one specifically about fonts.
> >>>
> >>>For both, I am looking for input on what subjects I should cover?
> >>>
> >>>Since both tutorials will end up as articles/wiki pages, it makes
> >>>sense to ask everybody on the list for input (but requests by actual
> >>>attendees will be scored considerably higher).
> >>
> >>Perhaps some example to modify a font at runtime? I don't know whether that's possible at all, but if yes, it would be great to see how one could modify kerning tables etc. Often a font needs to be groomed but its license places some restrictions on modifying the file itself...
> >
> >
> >+1
> 
> This is somewhat tricky. Actually I had a mechanism for that but I
> discarded the code. However there will be a feature like that some
> day as it needs a rather tight integration in the core of context's
> font handling. (btw, there is a feature for type 1 fonts that adds
> 'missing' kerns based on shape codes).

And there is font feature files, which, when not broken :), look the
same to the OpenType handling code as if the feature were in the
original font i.e. no special handling needed.

Regards,
 Khaled

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