The following code fails; however, it succeeds without newotf, and it
succeeds with newotf if the defined font feature (*hebrew) is removed
from the \definefont command. The characters that demonstrate the
problem are HEBREW LETTER LAMED combined with HEBREW POINT HOLAM,
followed by HEBREW LETTER ALEF (U05DC with combining U05B9 followed by
U05D0). I have not come across other combinations that cause the
problem, but I have not done an exhaustive search.
\usemodule [newotf]
\setupdirections [bidi=global]
\definefontfeature [hebrew] [default] [lang=heb,ccmp=yes,script=hebr]
\definefont [Hebrew] [sileot*hebrew]
\starttext
\startTEXpage
This is okay:{\hfill\Hebrew לא}
This is okay:{\hfill{\Hebrew לֹ}}
This fails:{\hfill{\Hebrew לֹא}}
\stopTEXpage
\stoptext
It reports:
error:
C:/ConTeXt/tex/texmf-context/tex/context/base/font-ots.lua:1586:
attempt to index a number value
tex error > tex error on line 13 in file
C://Users/rik/Desktop/newotf-features.tex: ?
<inserted text> \par
<to be read again>
\vss
\pack_framed_do_bottom ...amedparameter \c!bottom
\raggedbottomcommand
<to be read again> \localendstrut \pack_framed_do_bottom
\egroup
\stopfittingpage ->\removeunwantedspaces \egroup
\egroup \doif
{\fittingpage...
l.13 \stopTEXpage
The same problem occurs in the same way with the following fonts, most
of which are shipped with Windows:
Arial Regular
Arial Bold
Arial Narrow
David Regular
David Bold
Ezra SIL Regular
Ezra SIL SR Regular
Keter YG Medium
Levenim MT Regular
Levenim MT Bold
Taamey David CLM
Tahoma Regular
Tahoma Bold
Times New Roman Regular
Times New Roman Bold
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