Re: [NTG-context] loop textext and \MPstring{…}

12 Aug 2009

      Am 12.08.2009 um 15:25 schrieb Aditya Mahajan:
...
On Wed, 12 Aug 2009, Andreas Harder wrote:
...
Am 12.08.2009 um 07:40 schrieb Aditya Mahajan:
...
On Tue, 11 Aug 2009, Andreas Harder wrote:
...
Hi,
I am trying to achieve the following:
\setMPtext{1}{ABC}
\setMPtext{2}{DEF}
\setMPtext{3}{GHI}
\starttext
\startMPpage[offset=1ex,width=\paperwidth,height=\paperheight]
for i=1 upto 3:
draw textext(\MPstring{i}) shifted(i*cm,i*cm) ;
endfor;
\stopMPpage
\stoptext
There is no error but no content either. What's wrong?
Another way to do this is to use
\TeXtext{1}{ABC} etc.
and then call
draw sometxt(i)
For Sec 4.5 of Mojca's my way on sometxt http://dl.contextgarden.net/myway/sometxt.pdf
Thank you for the tip, I tried it, but sometext seems deprecated in  
mkiv ("[do we need TeXtexts in MkIV]").
I thought that you were using MKII.
...
I've different buffers named 1–12 and would like to pipe them to  
Metapost. I thought I could use a textext(\getbuffer[i])-construct,  
it failed. So I tried it with \setMPtext{}{} …
What is the approach to achieve this?
Well, if nothing else works, you can always cheat.
\startluacode
 userdata = userdata or {}
 userdata.labels = {
   [1] = "ABC" ,
   [2] = "DEF" ,
   [3] = "GHI" }
function userdata.shift(i)
   return "(" .. i .. "cm ," .. i .. "cm )"
 end
function userdata.draw(i)
   return "draw btex " .. userdata.labels[i] .. " etex  shifted "..  
userdata.shift(i) .. ";"
 end
\stopluacode
\starttext
\startluacode
 context.startMPpage({offset = "1ex", width = [[\paperwidth]],  
height = [[\paperheight]]})
   for i = 1,3 do
     context(userdata.draw(i))
   end
 context.stopMPpage()
\stopluacode
\stoptext
Thank you, very nice.

In the "real world“ I've stripped quotes form another document and  
stored them in buffer-environments (attachment). With your solution  
I've no idea how to incorporate them in a "automatic" manner.

Anyhow thanks

	Andreas