Alan Bowen schrieb am 04.02.19 um 18:50:

Here is a mwe that gives the same error as the original:

luatex warning  > hpack filter: error: ...eXt/tex/texmf-context/tex/context/base/mkiv/typo-dua.lua:422: attempt to compare number with nil

tex error       > tex error on line 22 in file /Users/bowen1/Desktop/TestTeX/test-02.tex: ?

\setupdirections[bidi=global, method=one]%<——

\defineitemgroup[CList][levels=2] \setupCList[1][n, broad, packed, autointro, repeat, continue] [itemalign=flushright, left={},right={},stopper={.}, margin=0pc, before={\setupinterlinespace[off] \setuplines[before={}, after={}] \startlines}, after={\stoplines}]

\setupCList[2][n, broad, packed, joinedup, autointro] [itemalign=flushright, left={}, right={}, stopper={}, margin=0pc, ]

\startcomponent[*] \startCList \sym{} Preface \sym{0.} Prolegomena %<——line 22 \stopCList \stopcomponent

The example processes as it should when the first line is commented out.

It works with method two or three for \setupdirections. Below is a shorter minimal example. \setupdirections[bidi=global,method=one] \starttext \setbox\scratchbox\autodirhbox{xyz} \stoptext Wolfgang