there's empty, and then there's REALLY empty

[Henry S. Thompson]

I'd be interested in reports from validating parsers wrt the
following:

<!DOCTYPE foo [
<!ELEMENT foo (a+)>
<!ENTITY empty ''>
<!ENTITY space ' '>
<!ELEMENT a EMPTY>]>
<foo>
&empty;
<a/>
&space;
<a/>
<![CDATA[]]>
<a/>
<![CDATA[ ]]>
<a/>
</foo>

You might be interested in trying to predict the results BEFORE
running the parser.

nsgmls -wxml -c .../xml.soc

gives a surprising answer, which I'll post tomorrow.

ht

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