Re: lua and brackets

[Martin Fechner <fechner@bbaw.de>]

Am 03.11.2011 12:01, schrieb Hans Hagen:
 > On 3-11-2011 10:15, Martin Fechner wrote:
 >> Hi all,
 >>
 >> I try to call a lua-function, but it seems that it doesn't work if the
 >> parameter contains squared brackets. Here is a short example:
 >>
 >> \starttext
 >> sometext
 >> \reference[myref]{}
 >> is
 >> \ctxlua{tex.print(\atpage[myref])}
 >> \stoptext
 >>
 >> Is there a way to mask the brackets?
 >
 > "\atpage[myref]"
 >

My lua function doesn't just print the parameter. I have a function like 
this:

\startluacode
function pagesetup(page1,page2)
     if page1==page2 then
         tex.print(page1)
     elseif page1+1==page2 then
         tex.print(page1..'f.')
     else
         tex.print(page1..'-'..page2)
     end
function
\stopluacode

\starttext
     \reference[myref1]{}
     \page
     \reference[myref2]{}
     \ctxlua{\at[myref1],\at[myref2]}
\stoptext

But I find no way that it works with the two references with brackets. 
Somewhere else I have an similar problem when I work with counters. The 
lua-function there doesn't accept this

\ctxlua{dosomething(\getnumber[mynumber])}

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