[whatwg] Character/Entity Reference Syntax Support
lachlan.hunt at lachy.id.au
Sat Oct 15 18:32:11 PDT 2005
I wrote a test page  to test the support for the syntax of hex and
numeric character refernces and entity references using all character
references defined in HTML4. It tests each with and without the REFC
It seems that IE doesn't support omitting the REFC for any hex character
reference and only supports omitting it for ISO-8859-1 entities plus
&, <, > and " from the markup significant category. IE
doesn't support &apos either, but it's not defined in HTML4 anyway.
Firefox and Opera support all of them just fine with or without the REFC.
I suspect these results may have some impact on the way you write the
HTML parsing rules for character references
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