[NTG-context] LMTX deeptextcommand issue

2 Apr 2019

      Dear All,

my document ends with the index

\startbackmatter
\chapter{Rejstřík jmenný}
\start
\switchtobodyfont[8pt]
\placeindexname
\stop
\stopbackmatter
\startbackmatter
\chapter{Rejstřík věcný}
\start
\switchtobodyfont[8pt]
\placeindexsubject
\stop
\stopbackmatter

At the beginning there is a condition for one word (kind of manual column
balancing) - but according to the log, see below, this seems to be an issue:
\newconditional\IndexState
\define[1]\IndexInternalCommand

{\doifelse{#1}{Dolsko}{\global\settrue\IndexState}{\global\setfalse\IndexSta
te}#1}

\define[1]\IndexCommand
  {\setfalse\IndexState
   \setbox\scratchbox\hbox{#1}%
   \ifconditional\IndexState
     \column
   \fi
   \box\nextbox}

\defineregister[indexname][indexnames]
\setupregister[indexname][command=\Word, textcommand=\IndexCommand,
deeptextcommand=\IndexInternalCommand]

\defineregister[indexsubject][indexsubjects]
\setupregister[indexsubject][command=\Word]
\setupheadtext[indexname=Rejstřík jmenný]
\setupheadtext[indexsubject=Rejstřík věcný]

This worked in luatex 1.0.1, but in LMTX I am getting:

structures      > begin of sectionblock 'backpart'
structure       > sectioning > chapter @ level 2 : 0.1 -> Rejstřík jmenný
fonts           > defining > font 'palab', feature 'locl', script 'latn', no
language 'dflt'

tex error       > tex error on line 25 in file
D:/context-lmtx/tex/texmf-context/tex/context/base/mkiv/page-run.mkiv: ?

<argument> [internal expandable lua function call]

\IndexInternalCommand ...\setfalse \IndexState }#1

\IndexCommand ...ate \setbox \scratchbox \hbox {#1
                                                  }\ifconditional
\IndexStat...
\doapplyregisterentrycommand ...extcommand {#2}}}}
                                                  \dostoptagged 
\registerentry ...plyregisterentrycommand {#2}{#5}
                                                  \fi \else \let
\currentreg...
l.25 }

...l.11633 \stop

15     
16     \registerctxluafile{page-run}{}
17     
18     \unprotect
19     
20     \unexpanded\gdef\showprint{\dotripleempty\page_layouts_show_print}
21     
22     \gdef\page_layouts_show_print[#1][#2][#3]% only english
23       {\setbuffer[crap]%
24           \unprotect
25 >>          \definepapersize[X][\c!width=4em, \c!height=6em]
26             \definepapersize[Y][\c!width=12em,\c!height=14em]
27             \setuppapersize[X,#1][Y,#2]
28             \setuplayout[#3]
29             \setuplayout[\v!page]
30             \framed
31               [\c!offset=\v!overlay,\c!strut=\v!no,
32                \c!width=\paperwidth,\c!height=\paperheight]
33               {\ss ABC\par DEF}%
34           \protect
35        \endbuffer

When I've seen that 'crap' and weird page dimensions, I thought it is part
of the April fool, like all that LMTX announcement.

This issue is not urgent, I was just curious how different the output is.

Thanks,

Jan

[NTG-context] LMTX deeptextcommand issue

Jan Tosovsky