On Sat, Mar 20, 2021 at 12:12 PM Hans Hagen <j.hagen@xs4all.nl> wrote:
On 3/20/2021 8:24 AM, Aditya Mahajan wrote:
> On Sat, 20 Mar 2021, Christoph Reller wrote:
>> Of course we can do this in lua:
>>
>> if tex.modes["A"] and not tex.modes{"B"] then
>> ...
>> end
>
> ... which means that you can use that at the context end as well (old feature).
> Save the following as test.mkix (or add "% macros=mkix" as the first line):
>
> ```
> \starttext
> <?lua if tex.modes["A"] and not tex.modes["B"] then ?>
> \starttyping
> A and not B
> \stoptyping
> <?lua else ?>
> \starttyping
> not (A and not B)
> \stoptyping
> <?lua end ?>
> \stoptext
a neat application!


Thank you for this hint, Aditya. This would be a very nice solution indeed. But it does not seem to work:

% macros=mkix
\definemode[A][yes]
\starttext
\startluacode
  if tex.modes['A'] then
    context("A")
  end
\stopluacode
<?lua if tex.modes['A'] then ?>
A
<?lua end ?>
\stoptext

With ConTeXt LMTX 2021.03.17 the output of the above is a single "A". I would expect two. What am I doing wrong?

Christoph