[whatwg] text/html conformance checkers and doctype
ian at hixie.ch
Fri Feb 24 16:47:51 PST 2006
On Thu, 28 Jul 2005, Henri Sivonen wrote:
> On Jul 28, 2005, at 20:31, Ian Hickson wrote:
> > On Thu, 28 Jul 2005, Henri Sivonen wrote:
> > > >
> > > > If so, I would answer "no". But I don't have a strong opinion.
> > > > What's the advantage either way?
> > >
> > > The advantage of allowing case-insensitivity and white space
> > > variance is that it would be more uniform with HTML4 doctypes. That
> > > is, it would be easier to write software that deals with both.
> > You seem to be mixing authoring requirements and implementation
> > requirements.
> No. I am interested in requirements for conformance checker
> implementations and, therefore, authoring.
In HTML5 they are separately defined (though hopefully equivalent). That
is, there is one section for describing what the syntax is, and one
section for how a conformance checker should parse a document to find the
In any case, the way it's ended up so far, the DOCTYPE construct is case
> > Well again it depends if you are asking about authoring or
> > implementation requirements. For implementations there are no
> > requirements here.
> I am strictly considering the requirements for conformance checkers.
> When something is
> allowed by browsers
> not likely to be an oversight on behalf of the author (eg. missing
> semicolon after an entity reference is likely to be an oversight)
> compatible with HTML4
> why not allow it in conforming documents?
Indeed. I'm just saying that at the moment in WF2 there are no parsing
requirements. In WA1 I agree with you.
> Eg. an author could reasonable expect to be able to use one or more
> whitespace charecters instead of one space between "DOCTYPE" and "html",
> because that's how it has been before and still is between attributes (I
> hope). Why forbid it?
Indeed. It's allowed now.
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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