Ignoring pdftex primitives

[Hans Hagen]

Sebastian Rahtz wrote:

>  > It would probably help, particularly in these days of cut and paste
>  > document writing, to encourage better practices if Sebastian's suggestion
>  > were adopted in the example documents provided with pdftex and in the FAQ.
> 
> pdftex only *has* one example file, to be fair. i'd agree that
> rewriting it as a model of portability would be a good exercise, who
> is volunteering?

What exactly is meant by portability here? 

BTW, isn't this example file just meant as an example of primitives
used, not as example of document setup? Ever seen the texbook source -). 
 
Hans

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