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.

I can read it, but I doubt it that I need a newer ConTeXt. I just this morning executed:
first-setup.bat --context=current --extras=al

It can not be much newer I would think.

When compiling, the output starts with:
mtx-context | run 1: luatex --fmt="C:/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/cont-en" --lua="C:/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/cont-en.lui" --backend="pdf" "./manualInterflon"

This is LuaTeX, Version beta-0.70.1-2011080612 (rev 4277)

\write18 enabled.

(manualInterflon.tex

ConTeXt ver: 2011.05.18 18:04 MKIV fmt: 2011.8.15 int: english/english