Hi Hans, I succeed to do what I want thanks to you (once more ;) ) ! I'll put the resulting presentation online at least at the end of the next week (u3d + layer + custom pre-original + animation with JS and fieldstack + program runs including mplayer runs with linux + ... robotics ?) Renaud Hans Hagen a écrit :
maybe future version of context will provide more control; for the moment, stick to:
\definehead [Topic] [chapter] \definehead [Subject] [section]
\newcounter\MyTopicCounter
\startsetups MyTopicList \blank \doglobal\increment\MyTopicCounter \doglobal\newcounter\MySubjectCounter \placelist[Topic][criterium=text,after=\setups{MySubjectList}] \stopsetups \startsetups MySubjectList \doglobal\increment\MySubjectCounter \doifelse{\MyTopicCounter}{\MySubjectCounter} { \placelist[Subject] } { % whatever } \stopsetups
\starttext
\Topic{first} \Subject{one} test \Subject{two} test \setups[MyTopicList] \page \Topic{second} \Subject{alpha} test \Subject{beta} test \setups[MyTopicList] \page
\stoptext