Am Donnerstag, 6. Juni 2024, 16:34:03 MESZ schrieb Wolfgang Schuster:
> \startsetups [userdata:extract]
>      \startnarrower
>          \setupindenting[next]
>          \getuserdata
>          \hairline
>          \dontleavehmode\wordright{\itx\userdataparameter{author}}
>      \stopnarrower
> \stopsetups
> 
> \defineuserdataalternative
>    [extract]
>    [renderingsetup=userdata:extract]
> 
> \defineuserdata
>    [extract]
>    [style=italic,
>     alternative=extract]
> 
> \starttext
> 
> \startextract[author=René Descartes]
>      Cogito ergo sum.
> \stopextract
> 
> \stoptext
> 
> Wolfgang
> 

I tried to combine this with the code of the mail thread: "setuphead in connection with the command argument" but had not luck.
ConTeXt always stops with:
```
close source    > level 1, order 2, name './mwe.tex'
tex error       > runaway error: end of file encountered
mtx-context     | fatal error: return code: 1
```

Here is the MWE:
```
\startsetups [userdata:extract]
	\getuserdata
	\hairline
	\itx\userdataparameter{author}
\stopsetups

% original definition (also does not work)
% \startsetups [userdata:extract]
%      \startnarrower
%          \setupindenting[next]
%          \getuserdata
%          \hairline
%          \dontleavehmode\wordright{\itx\userdataparameter{author}}
%      \stopnarrower
% \stopsetups

\defineuserdataalternative
   [extract]
   [renderingsetup=userdata:extract]

\defineuserdata
   [extract]
   [style=italic,
    alternative=extract]

\defineframed[chapter_frame][
	width=\textwidth,
	align=flushright,
	offset=0pt,
	rulethickness=0pt
]

\startsetups[my_chapter]
	\startlocalheadsetup
		\startframed[chapter_frame]
			\blank[2cm]
			\startfont[Serif sa 8]
				\color[darkgray]{\headnumbercontent}
			\stopfont
			\blank[5mm]
			\startfont[SerifBold sa 2]
				\color[m-indigo-800]{\headtextcontent}
			\stopfont
			\blank[1cm]
			\startfont[SerifBold sa 1.5]
				\color[m-indigo-800]{\structureuservariable{subtitle}}
			\stopfont
			\blank[3cm]
			\startextract[author={\structureuservariable{quoteauthor}}]
				\structureuservariable{quote}
			\stopextract
		\stopframed
	\stoplocalheadsetup
\stopsetups

\defineheadalternative[chap][renderingsetup=my_chapter]

\setuphead[title, chapter][
	alternative=chap,
	after={\page[yes]},
	sectionsegments=2:2,
	header=high,
	footer=high,
	style=
]

\starttext

% embedded startextract into startchapter does not work
\startchapter[title=Foo][subtitle=bla, quoteauthor={René Descartes}, quote={%
	Cogito ergo sum.
}]
\stopchapter

\startextract[author=René Descartes]
	Cogito ergo sum.
\stopextract

\stoptext
```



I also tried to combine it less interleaved, but it fails with the same error:
```
\startsetups [userdata:extract]
	\getuserdata
	\hairline
	\itx\userdataparameter{author}
\stopsetups

% original definition (also does not work)
% \startsetups [userdata:extract]
%      \startnarrower
%          \setupindenting[next]
%          \getuserdata
%          \hairline
%          \dontleavehmode\wordright{\itx\userdataparameter{author}}
%      \stopnarrower
% \stopsetups

\defineuserdataalternative
   [extract]
   [renderingsetup=userdata:extract]

\defineuserdata
   [extract]
   [style=italic,
    alternative=extract]

\defineframed[chapter_frame][
	width=\textwidth,
	align=flushright,
	offset=0pt,
	rulethickness=0pt
]
\defineframed[chapter_quote][
	width=\textwidth,
	align=flushright,
	offset=0pt,
	rulethickness=0pt
]

\startsetups[my_chapter]
	\startlocalheadsetup
		\startframed[chapter_frame]
			\blank[2cm]
			\startfont[Serif sa 8]
				\color[darkgray]{\headnumbercontent}
			\stopfont
			\blank[5mm]
			\startfont[SerifBold sa 2]
				\color[m-indigo-800]{\headtextcontent}
			\stopfont
			\blank[1cm]
			\startfont[SerifBold sa 1.5]
				\color[m-indigo-800]{\structureuservariable{subtitle}}
			\stopfont
			\blank[3cm]
			\startframed[chapter_quote]
				\structureuservariable{quote}
			\stopframed
		\stopframed
	\stoplocalheadsetup
\stopsetups

\defineheadalternative[chap][renderingsetup=my_chapter]

\setuphead[title, chapter][
	alternative=chap,
	after={\page[yes]},
	sectionsegments=2:2,
	header=high,
	footer=high,
	style=
]

\starttext

% embedded startextract into startchapter does not work
\startchapter[title=Foo][subtitle=bla, quote={%
	\startextract[author=René Descartes]
		Cogito ergo sum.
	\stopextract
}]
\stopchapter

\startchapter[title=Foo][subtitle=bla, quote={bla}]

\startextract[author=René Descartes]
	Cogito ergo sum.
\stopextract

\stopchapter

\stoptext
```

Do you know where the problem is?


Gerion