[whatwg] hasFeature() When Only 1 Syntax is Supported

[Ian Hickson]

On Tue, 14 Jul 2009, Simon Pieters wrote:
> On Tue, 14 Jul 2009 07:44:25 +0200, Ian Hickson <ian at hixie.ch> wrote:
> > On Wed, 24 Jun 2009, Simon Pieters wrote:
> > > 
> > > The spec is now gaining all the remaining stuff from DOM2 HTML, so 
> > > this note is incorrect:
> > > 
> > > "Note: The interfaces defined in this specification are not always 
> > > supersets of the interfaces defined in DOM2 HTML; some features that 
> > > were formerly deprecated, poorly supported, rarely used or 
> > > considered unnecessary have been removed. Therefore it is not 
> > > guaranteed that an implementation that supports "HTML" "5.0" also 
> > > supports "HTML" "2.0"."
> > > 
> > > I'm thinking that the spec should maybe just use "2.0" instead of 
> > > "5.0", since it's what browsers do and there might be pages that 
> > > check for this.
> > > 
> > > Meanwhile it seems useful to return false as appropriate if the UA 
> > > only allows one of the syntaxes, as Smylers points out.
> > 
> > I've removed everything but HTML/2.0.
> 
> I'm pretty sure Web compat requires HTML/1.0 to return true, too.

Good point, added that one too.


> Gecko, WebKit and Opera return true for XHTML/2.0. WebKit and Opera also 
> return true for XHTML/1.0. I don't know what the Web compat situation is 
> with the XHTML values.

I've added these, but would be very willing to drop any that end up only 
supported in at most one browser.

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'