Am 25.02.2011 00:43, schrieb Rasmus Villemoes: > Joseph Wright <[log in to unmask]> writes: > >> Handy list. I'll have to look through by hand as what I need to know is >> direct use of expl3 material (as I know about fontspec, simply requiring >> it is not so much of the issue as subsequently \ExplSyntaxOn within the >> package). > > The subset with at least one occurence of \ExplSyntaxOn is not so big: I think you should also search class (*.cls) files. Furthermore, \ExplSyntaxOn is executed by \ProvidesExplPackage/Class/File.