Many thanks, Hans! I wasn't sure I made myself clear, but defineactivecharacter does the job very very nicely. One day I understand one of its many definitions - especially the \uccode tilde business, which is probably necessary for the TeX mastication process ;-)
Enzo Hans Hagen wrote: > | is already active, but not b > > \bgroup > \catcode`B=\active > \def\start... > > \egroup > > otherwise a 'character B' and not an 'active character B' ends up in the > definition > > This may be easier: > > \def\Whatever > {\defineactivecharacter B {[oeps]}} > > bla bla \start \Whatever B \stop ble bla _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context