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.