[whatwg] Stability of tokenizing/dom algorithms

Cameron McCormack cam at mcc.id.au
Mon Dec 15 14:44:55 PST 2008

Edward Z. Yang:
> > Sounds good, since HTML4 is a strict subset of HTML5 (correct me if I'm 
> > wrong?)

Ian Hickson:
> Mostly, yes. (There are exceptions, but they're not things you'd really 
> want to be using anyway, e.g. obscure SGML features.)

Note though that it’s not possible to write a document that is both
valid HTML 4 and HTML 5, since they both require a different DOCTYPE to
be used.

Cameron McCormack ≝ http://mcc.id.au/

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