Re: [NTG-context] processaction in keyval lists[SOLVED]

22 Jan 2005


      Answering my own question, and apologizing for the noise: after having  
a look at some instances of \processaction in the source, I just took  
out \expandafter before and after \processaction; now it works. I'm  
just getting a mysterious pair of brackets in my pdf, but I'll try and  
hunt that down, too.

Best

Thomas
On Jan 22, 2005, at 4:01 PM, Thomas A.Schmitz wrote:
...
All,
I couldn't resist spending some time today working on the Greek  
problem. I'm trying to write a proper module that would allow me to  
set up definitions for fonts and scaling. But I'm running into a  
problem  that is beyond my meagre TeX abilities. I want to define the  
setup-command like so (using code that Taco send to the list a couple  
of months ago and that can be found on the wiki):
\unprotect
\def\setupgreek{\dodoubleempty\dosetupgreek}
\def\dosetupgreek#1[#2]{%
  \getparameters[GG][Scale=,Font=,#2]%Font,Scale
\edef\MyScale{\GGScale}%
\expandafter\processaction\expandafter[\GGFont]
   [SomeFont1     =>\def\MyFont{somefont },
    SomeFont2     =>\def\MyFont{someotherfont }]
}
\protect
\definebodyfont[4pt,5pt,6pt,7pt,8pt,9pt,10pt,10.5pt,11pt,12pt,14pt,14.4 
pt,16pt,18pt,20pt,22pt][rm][Gf=\MyFont sa \MyScale]
So I want this setup
\setupgreek[Scale=1.5,Font=SomeFont1]
to be expanded to somefont scaled at 1.5.
However, when I process a file, I always get this error:
! Undefined control sequence.
<argument> \MyFont
                   sa \MyScale
\parsefontspec #1->\xdef \somefontspec {#1
                                          \space }\@EA  
\doparsefontspec \som...
\xxdododefinefont ...tsize {#2}\parsefontspec {#4}
                                                  \newfontidentifier  
\let \l...
\fontstrategy ...ame #1\csname #2#3#4#5\endcsname
                                                  \tryingfontfalse \fi
<inserted text> ...yle \fontalternative \fontsize
                                                  \fi \iftryingfont  
\fontstr...
\synchronizefont ...strategy \the \fontstrategies
                                                  \relax \fi  
\ifskipfontchar...
...
When I add this line
\def\MyFont{somefont }
to the module, files compile without problems. So I conclude: the  
mistake is not in the definiton of MyFont itself, but my values are  
not getting processed the proper way; something in the \processaction  
part must be wrong. But I'm "stymied" here. Any suggestions would be  
most welcome!
Best
Thomas
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