On 23/02/2012 14:04, Costello, Roger L. wrote:
> Is it common practice to structure the content of PIs as
attribute/value pairs?
It wasn't in the old days, XML started a trend I think with pseudo
attributes in the xml declaration like encoding="utf8" and
xml-stylesheet carried on the tradition.
In many original uses the PI is used a a hole in to which to drop
processing instructions in the language used by the processor, so often
in some completely different non-Tex typesetting language. (In xmltex
for example you can drop bits of TeX syntax into a PI and they fall
through into the generated document.
Basically PI's are a distinguished form of comment, just using <? ?>
instead of <!-- -->.
David
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