Hi all, seems the mkvi-style macros have trouble with groups in comments: ········································································ % macros=mkvi \def\dosomething#content{%%% <= fine with “#1” % { %%% Open unbalanced brace breaks macros. } \starttext \dosomething {foo} \stoptext ········································································ Fails here with: <to be read again> c l.2 \def\dosomething#c ontent{%%% <= fine with “#1” Removing the comment, closing the group or reverting to TEX-style argument numbering makes this behavior disappear. Philipp -- () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments