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From: ecashin@coe.uga.edu (Ed L. Cashin)
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Subject: Re: use supp-fil in plain tex
Date: 13 Mar 2000 15:49:07 -0500
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First of all, I should say that my context is not the latest.  It's
not so old, though.  It was in teTeX 1.0.6 and has a couple of things
in cont-new that were added subsequently.

Hans Hagen <pragma@wxs.nl> writes:

> At 11:51 AM 3/10/2000 -0500, Ed L. Cashin wrote:
...
> >I know that loops can be done in plain TeX with the \loop macro, and I
> >saw the "\doiffileelse" macro in supp-fil.tex.  I'm trying to use it
> >like this:
...
> 
> Plain's \loop is rather fragile. 
> 
> \input syst-gen.tex
> \input syst-ext.tex 
> \input supp-fil.tex

I tried including those files, but \beginTEX was not defined, so I
looked for that macro and added "\input syst-tex".  But then
"\forgetall" was undefined, so I added "\input supp-mis".

Even then, \forgetall was undefined when supp-pdf was loading.

This is what I'm doing now:

    \input syst-tex			% for \beginTEX
    \input syst-gen
    \input supp-mis			% for \forgetall
    \input syst-ext
    \input supp-fil
    \input supp-pdf			% no \forgetall -- don't know why.

> \doloop
>   {\doiffileelse{sumvouch.\recurselevel}
>      {\placeFgBg{sumvouch.\iterator}}
>      {\exitloop}}

I like that.  I assume that I should replace "\iterator" with another
"\recurselevel". 

--Ed Cashin                     PGP public key:
  ecashin@coe.uga.edu           http://www.coe.uga.edu/~ecashin/pgp/