Hans van der Meer wrote: > After some detective work in which Wolfgang Schuster had a large share > and has found the most elegant workaround, the addition of a \relax > just after the description call prevents the error: > \def\shortanswer#1\par{% > \par % be sure to end paragraph here > \answerblock{}% % {} needed here in description call > \relax % <<<<<<<<<<<<<<<<< \relax prevents crash on if > \ifanswers #1\else\dotfill\strut\fi > \par % final \par of description ... \par > } > > The way \relax stops the error reminds me of the \relax that one > places after a number in order to separate that from the code following. > I did compare core-des.tex, both the last version and the archived > from 2007-04-17. But I must admit, I did not succeed finding a clue > among the differences about what could have happened. The code is a > bit too intricate to just jump in and pinpoint the culprit -- at least > for me.
i cannot put a \relax in there because \answerblock looks ahead the argument grabber handles some of the if's but only the primitives; in your case ... don't use \ifanswers, just use modes ... \enablemode[answers] ... \doirmnode{answers} Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ 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 : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________