At least in MKIV. I haven't tried MKII.
The following example should demonstrate this. With no mode specified on
the command line, this should enable mode three and prevent and disable
the other modes. It seems that \preventmode is not only ineffective in
what it is described as doing, but also disables the following \disablemode!
Or perhaps I am misusing this or misunderstand what it should do.
(2014-08-29 20:57 standalone)
\definemode[one][keep]
\definemode[two][keep]
\definemode[three][keep]
\define\ModeOne{nil}
\define\ModeTwo{nil}
\define\ModeThree{nil}
\startmode[one]
\define\Mode{one}
\define\ModeOne{set}
\disablemode[two,three]
\stopmode
\startmode[two]
\define\Mode{two}
\define\ModeTwo{set}
\disablemode[one,three]
\preventmode[one]
\stopmode
\startnotmode[one,two]
\define\Mode{three}
\define\ModeThree{set}
\enablemode[three]
\preventmode[one,two]
\disablemode[one,two]
\stopnotmode
\starttext
Mode is \Mode.
ModeOne is \ModeOne.
ModeTwo is \ModeTwo.
ModeThree is \ModeThree.
Mode \doifmode{one}{one}\doifmode{two}{two}\doifmode{three}{three}
is active.
\stoptext
--
Rik Kabel
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
