> Am 05.09.2021 um 13:01 schrieb Hans Hagen <j.ha...@xs4all.nl>:
>
> On 9/5/2021 12:01 PM, Henning Hraban Ramm via ntg-context wrote:
>> * How translates \ifodd\realpageno ?
>> This doesn’t work:
>> if ((tex.getcount("realpageno") mod 2) == 1) then
>> a = 1
>> end
>
> we're talking lua: 9 % 2 == 0
Oops. Too many languages...
>> TeX:
>> \def\Something{1cm}
>> Lua:
>> context.Something()
>
> yes (assuming you're in scope)
Then I’m out of scope.
\def is in my environment, directly before I load the Lua functions with
\loadluafile.
How can I access the macros from the environment there?
>> Is tex.strut and tex.par supposed to work? Or how should I access these?
>
> \strut is not is primitive
>
> context.strut() and context.par() should just work
It does. I thought I had tried that...
> 0) I don’t understand what “permanent” does and why I should maybe disable
> it. (cld-mkiv, p.146)
>
> overload protection
>
> \permanent\def\Whatever{?}
> \overloadmode=0
> %\overloadmode=3
> %\overloadmode=4
> \def\Whatever{!}
>
> try 3 and 4 (actually, try to run your documents with overloadmode set and
> you might see where you replace core macros)
>
> %enabledirectives[overloadmode=warning]
> \enabledirectives[overloadmode=error]
>
> btw, you can temporary do
>
> \pushoverloadmode
> potentially risky definitions
> \popoverloadmode
Thank you, I’ll try. (While I’m quite sure I never overload core macros.)
>> 1) The parameter y is actually supposed to be a dimension, but if I declare
>> it "dimen", ConTeXt says there wasn’t a number at "1cm".
>> Or is a measure like that not a dimension?
>
> if you want to use {} around it use "dimenargument"
>
>> 2) The original interface of \MyFun had two optional parameters. I couldn’t
>> find how to do that with interfaces.implement.
>> cld-mkiv, p.151 (12.7) shows how to do lists or key=value, but not single
>> optional args.
>
> there is "optional"
>
> and ... cld is not yet updated to lmtx in this respect so some newer features
> are missing
Thank you!
Must I then declare "string optional" etc.?
Hraban
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