Dear List,

I have done an little example with a \blackrule:

\setuppapersize[A8,landscape]

\setuplayout[leftmargin=2.5cm,

             leftmargindistance=0.2cm,

             backspace=2.9cm,

             width=4cm]

\starttext

\margintext{\blackrule[color=black, height=0.05ex, width=1cm]\\Me}\blackrule[color=black, height=0.05ex, width=4cm]

\startformula

a^n + b^n = c^n.

\stopformula

\stoptext

My Question is , where to put margintext, with \dontleavethemode, with blackrule, because if I put it after \starttext:

\margintext{\blackrule\\{Me}}\dontleavehmode\blackrule

Before :

\margintext{\blackrule[color=black, height=0.05ex, width=1cm]\\Me}\blackrule[color=black, height=0.05ex, width=4cm] there is no pdf after compiling.

I get:

Command Line:   context.exe --synctex=-1 "pablo.tex"

Startup Folder: C:\Users\Hermann\Downloads\context-mswin\tex\texmf-context\tex\context\test\mkiv

resolvers       | formats | executing runner 'run luametatex format': luametatex --jobname="./pablo.tex" --socket --shell-escape --fmt=C:/Users/Hermann/Downloads/context-mswin/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.fmt --lua=C:/Users/Hermann/Downloads/context-mswin/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.lui  --c:currentrun=1 --c:fulljobname="./pablo.tex" --c:input="./pablo.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:synctex="-1" --c:texmfbinpath="C:/Users/Hermann/Downloads/context-mswin/tex/texmf-mswin/bin"

system          >

system          > ConTeXt  ver: 2023.09.03 19:03 LMTX  fmt: 2023.9.4  int: english/english

system          >

system          > 'cont-new.mkxl' loaded

open source     > level 1, order 1, name 'C:/Users/Hermann/Downloads/context-mswin/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl'

system          > beware: some patches loaded from cont-new.mkiv

close source    > level 1, order 1, name 'C:/Users/Hermann/Downloads/context-mswin/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl'

system          > files > jobname './pablo', input './pablo.tex', result './pablo'

fonts           > latin modern fonts are not preloaded

languages       > language 'en' is active

system          > synctex functionality is enabled, expect 5-10 pct runtime overhead!

open source     > level 1, order 2, name './pablo.tex'

modules         > using user prefixed file 's-layout-show'

modules         > 's-layout-show' is loaded

open source     > level 2, order 3, name 'C:/Users/Hermann/Downloads/context-mswin/tex/texmf-context/tex/context/modules/mkxl/s-layout-show.mkxl'

loading         > ConTeXt Page Macros / Runtime Macros

resolvers       > lua > loading file 'C:/Users/Hermann/Downloads/context-mswin/tex/texmf-context/tex/context/base/mkiv/page-run.lua' succeeded

close source    > level 2, order 3, name 'C:/Users/Hermann/Downloads/context-mswin/tex/texmf-context/tex/context/modules/mkxl/s-layout-show.mkxl'

fonts           > beware: no fonts are loaded yet, using 'lm mono' in box

pack quality    > underfull hbox at line 7 in file './pablo.tex':  (badness 1490)

pack quality    > underfull hbox at line 7 in file './pablo.tex': Me (badness 1448)

tex error       > tex error on line 7 in file ./pablo.tex: Undefined control sequence

<line 3.7>

    \margintext{\blackrule\\{Me}}\dontleavethemode

    \blackrule

1     \setuppapersize[A8,landscape]

2     \setuplayout[leftmargin=2.5cm,

3                  leftmargindistance=0.5cm,

4                  backspace=2.9cm,

5                  width=4cm]

6     \showframe

7 >>  \margintext{\blackrule\\{Me}}\dontleavethemode\blackrule

8     margintext{\blackrule[color=black, height=0.05ex, width=1cm]\\Me}\blackrule[color=black, height=0.05ex, width=4cm]

9     \starttext

10     \startformula

11     a^n + b^n = c^n.

12     \stopformula

13     \stoptext

The control sequence at the end of the top line of your error message was never

\def'ed. You can just continue as I'll forget about whatever was undefined.

mtx-context     | fatal error: return code: 1

_____________________________________________________________________

ConTeXt Compilation Report (Pages: 0)

Errors: 0   Warnings: 0   Bad Boxes: 0

Thanks

Uschi