Jairo A. del Rio schrieb am 22.01.2021 um 23:14:
How strange. I guess you don't have your modules installed. In such a case, you could install them from modules.contextgarden.net http://modules.contextgarden.net and put content under texmf-modules so after mtxrun --generate and context --make examples work.
The core function of the annotation module (custom environment with key-val-arguments) is part of ConTeXt but it doesn't create new environment commands. \defineuserdata [zzz] [alternative=zzz, after={\blank[10mm]}] \defineuserdataalternative[zzz][renderingsetup=userdata:zzz] \startsetups[userdata:zzz] \hrule \doifsomething{\userdataparameter{title}} {\bold{\strut\userdataparameter{title}} \blank} \strut\getuserdata \stopsetups \starttext \startuserdata[zzz] \input weisman \stopuserdata \startuserdata[zzz][title=Ward] \input ward \stopuserdata \stoptext
Another possibility is to use \do...empty and such, but it feels odd when a module for that is already available.
No \do...empty (LMTX only): \tolerant\protected\def\startzzz#=% {\hrule \doifsomething{#1}{\bold{\strut#1}\blank}} \protected\def\stopzzz {\blank[10mm]} \starttext \startzzz \input weisman \stopzzz \startzzz{Ward} \input ward \stopzzz \stoptext Wolfgang