Fabrice Couvreur schrieb am 03.11.2019 um 22:46:
> Hi Wolfgang,
> I know it takes a predefined argument, but I wanted to quote the name 
> of the command as such  \hspace[]. Nevertheless, it does not work with 
> this :
>
> \usecolors[xwi]
> \starttext
> \startframedtext[width=fit,frame=off,
>  background=color,backgroundcolor=paleturquoise]
>
> {\it lancers}\unknown
>
> {\it dé}\unknown
>
> Tant que {\it dé}\unknown Faire
>
> *\unknown
> *
> *\hspace[big]\unknow*n
>
> Fin Tant que
> \stopframedtext
> \stoptext

\hspace works only in horizontal mode and when you try the command at 
the start of a paragraph you need \dontleavehmode to start the paragraph.

\starttext

\hspace[big]\unknown

\dontleavehmode\hspace[big]\unknown

\stoptext

Wolfgang