On Wed, Mar 26, 2008 at 9:23 PM, Hans van der Meer <[EMAIL PROTECTED]> wrote:
> Wolfgang,
>
> From your observation I am inclined to guess that the \ifx falls prey
> to the collection of arguments. The \relax can be replaced by an extra
> pair {} behind the description: \answerblock{}{}% also typesets
> without the if-error.
You could also add "title=no" to \definedescription[answerblock], this stops
TeX from looking after a optional argument between the braces.
> I more or less conclude that the lookahead from \dodoublegroupempty
> does not stop on the \if. If I remember correctly, that behaviour is
> to be expected from tex and the prospects for solving it generically
> within the format bleak. If Hans Hagen is listening, can he comment on
> this?
I tried your module also with my ancient ConTeXt from august last year
and it did also show this effect. Your module is broken since a very long time.
Wolfgang
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