Am 15.08.2011 um 17:33 schrieb Cecil Westerhof:

2011/8/15 Wolfgang Schuster <schuster.wolfgang@googlemail.com>
> Do I understand correctly that '%% this is a comment' should not be in the PDF? Because it is when I compile the document.

Yes, with \asciimode “%” is a normal character but to put comments in your document you can use “%%”.

Does not work on my side. Both percentage signs and the text after it are displayed in my document.

Does this work?

\asciimode
\starttext
% this is visible %% and this is not
\stoptext

When you can read the text after “%%” you need a newer context.

Wolfgang