[NTG-context] Context crashes using Iosevka v16.3.6 typeface

Werner Schmidt wsnoad at gmx.net
Sat Nov 12 12:02:38 CET 2022


Dear list, 

I like to use the Iosevka as mono typeface. It worked in the past, but sadly context crashes now with the following error. 

    fatal error: /font-dsp-macro.lua:2336: attempt to index a nil value (local 'sequence')

Plese see MWE below. 

Any ideas how debug / solve this issue? 

Thanks in advance. 
Werner 



------- test_iosevka. tex --------

% Win 10 Enterprise, x64, 10.0.19042 Build 19042
% ConTeXt  ver: 2022.10.22 11:23 LMTX  fmt: 2022.11.12  int: english/english

% fatal error: /font-dsp-macro.lua:2336: attempt to index a nil value (local 'sequence')

\starttypescriptcollection[myfonts]
  % Mono - iosevka (Iosevka SS09 — Terminal, Hinted)
  % Source: https://github.com/be5invis/Iosevka/blob/v16.3.6/doc/PACKAGE-LIST.md
  \starttypescript [mono] [iosevka] [name]
      \setups[font:fallback:mono]
      \definefontsynonym [Mono]            [file:iosevka-term-ss09-light]
      \definefontsynonym [MonoItalic]      [file:iosevka-term-ss09-lightitalic]
      \definefontsynonym [MonoSlanted]     [file:iosevka-term-ss09-lightoblique]
      \definefontsynonym [MonoBold]        [file:iosevka-term-ss09-semibold]
      \definefontsynonym [MonoBoldItalic]  [file:iosevka-term-ss09-semibolditalic]
      \definefontsynonym [MonoBoldSlanted] [file:iosevka-term-ss09-semiboldoblique]
  \stoptypescript

  \starttypescript[iosevka]
  \definetypeface [\typescriptone] [tt] [mono] [iosevka] [default] [rscale=0.84,features={default,ss09=yes}]
  \stoptypescript
\stoptypescriptcollection

%\setupbodyfont [mono] % Latin Modern Mono works!
\setupbodyfont [iosevka] % iosevka v16.3.6 crashes! :-(

\starttext
\input{zapf}
\stoptext


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