From the documentation:
\starttext \startitemize \head he got a head ache \startitemize[n,packed] \item of all the items \nop he had to learn at school \mar{++} because the marginal explanation \sub of the substantial content \sym{\#} turned out to be mostly symbolic \stopitemize \stoptemize \stoptext ! Extra }, or forgotten \endgroup. system > error on line 10 in file 04-01-6.ctxcrop: Extra }, or forgotten ... 1 \starttext 2 \startitemize 3 \head he got a head ache 4 \startitemize[n,packed] 5 \item of all the items 6 \nop he had to learn at school 7 \mar{++} because the marginal explanation 8 \sub of the substantial content 9 \sym{\#} turned out to be mostly symbolic 10 >> \stopitemize 11 \stoptemize 12 \stoptext \stopitemgroup ...el {\number \itemdepth }\egroup \par \fi \dorechecknextind... l.10 \stopitemize --------------------------------------------------------- ConTeXt ver: 2010.10.18 11:11 MKIV fmt: 2010.10.24 int: english/english Herbert