From: Hans van der Meer <H.vanderMeer@uva.nl>
To: NTG ConTeXt <ntg-context@ntg.nl>
Subject: arguments to ctxlua
Date: Tue, 30 Mar 2010 19:45:47 +0200 [thread overview]
Message-ID: <A5FF035D-B4C4-444D-99C2-D438F34F808D@uva.nl> (raw)
When I have a Lua function with 2 arguments:
\startluacode
function f(a,b)
...
\stopluacode
called through:
\def\callf#1#2{\ctxlua{f("#1","#2")}}
and do this actually with one argument:
\callf{one}
then I find that the absent argument b in f(a,b) is not nil but a
string of length 1.
That is a bit of a nuisance because I would like to use the Lua idiom:
function f(a,b)
local b = b or default
but that is frustrated by the behaviour shown.
Is this an artifact of either luatex or ConTeXt? Can it be avoided
such that in this case b will be nil?
Hans van der Meer
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next reply other threads:[~2010-03-30 17:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-30 17:45 Hans van der Meer [this message]
2010-03-30 17:52 ` Hans Hagen
2010-03-30 18:30 ` Peter Münster
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