[NTG-context] two issues with variable fonts

[Hans Hagen]

On 12/2/2022 7:06 PM, Pablo Rodriguez via ntg-context wrote:
> Hi Hans,
> 
> I have two issues with variable fonts (using current latest from yesterday):
> 
> 1. Using the following sample:
> 
>   \usemodule[fonts-variable]
>   \starttext
>    \showfontvariations[font=file:grenze.ttf]
>   \stoptext
> 
> With the fonts from
> https://github.com/Omnibus-Type/Grenze/tree/master/fonts-/gx, I get the
> following error message:
> 
> lua error:
>    run callback [6]:
> ...ext/tex/texmf-context/tex/context/base/mkxl/lpdf-emb.lmt:84: number
> (local 'n') has no integer representation
> stack traceback:
>     ...base/mkxl/lpdf-emb.lmt:84: in upvalue 'tocardinal2'
>     ...base/mkxl/lpdf-emb.lmt:771: in local 'writer'
>     ...base/mkxl/lpdf-emb.lmt:2358: in field 'integer index'
>     ...base/mkxl/lpdf-ini.lmt:828: in upvalue 'run'
>     ...base/mkxl/lpdf-ini.lmt:859: in field 'finalizedocument'
>     ...base/mkxl/lpdf-lmt.lmt:3413: in field '?'
>     ...base/mkxl/luat-run.lmt:58: in function
>       <...ext/tex/texmf-context/tex/context/base/mkxl/luat-run.lmt:56>	
> 
> <empty file>
> mtx-context     | fatal error: return code: 1
> 
> This crashes LuaMetaTeX but not LuaTeX.

i'll catch it

> 2. The other font is Recursive
> (https://github.com/arrowtype/recursive/tree/main/fonts/recursive_for_googlefonts).
> 
>   \usemodule[fonts-variable]
>   \starttext
>    \showfontvariations[font=file:recursive.ttf]
>   \stoptext
> 
> There are some some instances (in pages 4 to 14) that don’t have the
> font (only Latin Modern Roman).

i'll catch it

> Also in the last instances (at least, pages 19 to 25), kerning or
> interletter spacing clearly needs to be improved.
no clue (ok, a little)

Hans

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