Selecting character by glyph index

Selecting character by glyph index

[Idris Samawi Hamid ادريس سماوي حامد]

Dear consortium,

Is there a command analogous to \char or \fontchar which allows me to  
select a glyph by its index in the font? In most font editors you can  
choose "Index Mode" which shows the "physical" ordering of the glyphs  
independent of encoding etc.

I thought that \charNN (where 'NN' is a decimal integer) did this, but it  
does not seem to select the correct indexed glyph for a \definefont,  
making me wonder in MkIV has changed its behavior. For example, choosing   
\char35 gives me glyph index 223, not glyph 35.

In any case, for the current (already tedious) project this is a feature  
that is sorely needed; if there is a way to hack a quick lua-based command  
to do it, I would appreciate any help I can get. Perhaps a future version  
of \fontchar can add this as an option... Thanks in advance and

Best wishes
Idris
-- 
Idris Samawi Hamid
Professor of Philosophy
Colorado State University
Fort Collins, CO 80523
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Re: Selecting character by glyph index

[Hans Hagen]

On 8/18/2014 7:48 AM, Idris Samawi Hamid ادريس سماوي حامد wrote:
> Dear consortium,
>
> Is there a command analogous to \char or \fontchar which allows me to
> select a glyph by its index in the font? In most font editors you can
> choose "Index Mode" which shows the "physical" ordering of the glyphs
> independent of encoding etc.
>
> I thought that \charNN (where 'NN' is a decimal integer) did this, but
> it does not seem to select the correct indexed glyph for a \definefont,
> making me wonder in MkIV has changed its behavior. For example,
> choosing  \char35 gives me glyph index 223, not glyph 35.
>
> In any case, for the current (already tedious) project this is a feature
> that is sorely needed; if there is a way to hack a quick lua-based
> command to do it, I would appreciate any help I can get. Perhaps a
> future version of \fontchar can add this as an option... Thanks in
> advance and

you cannot trust an index ... use names as these are more stable

\setupbodyfont[dejavu]

\starttext

\fontchar{a}
\fontchar{alpha}
\fontchar{three}
\fontchar{uni1ECB.dotless}
\fontchar{delta}
\fontchar{delta.smcp}

\stoptext




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If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
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