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Re: [selectors-api] Selectors API comments: section 2.1

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Tue, 25 Dec 2007 23:32:28 -0500
Message-ID: <4771D95C.8070704@mit.edu>
To: Bjoern Hoehrmann <derhoermi@gmx.net>
CC: public-webapi@w3.org

Bjoern Hoehrmann wrote:
>> * What is the expected behavior of lookupNamespaceURI when a null 
>> DOMString is passed in?  Should it match the behavior when an empty 
>> string is passed in?
> 
> A bug report would be the appropriate course of action

That doesn't actually help define the behavior, though.  I'm happy with 
pretty much any definition of the behavior here as long as it's defined.

>> * The text "it MUST do either of the following" at the end of the second 
>> paragraph after the interface definition would be better written as "it 
>> MUST do one of the following".
> 
> Could you explain why that would be better? Looking at the text, it
> seems this would be better written as "MUST do: ...".

With s/ do// that looks great to me.  My text was better than the 
current text because "either of the following" doesn't make sense if you 
don't actually have a choice, which is the situation here.

>> * It's not clear what "similar constructs" means in the phrase "and 
>> other languages that allow similar constructs".  Does this mean 
>> "first-class functions", or something else?
> 
> I would suggest to remove this remark.

That would be fine with me.

>> * It should be clarified that if the NSResolver is a Function, invoking 
>> the function with a single string argument should replace calling the 
>> lookupNamespaceURI method.  I believe the DOM Level 2 Events ECMAScript 
>> bindings for EventListener have some language that could be reused here.
> 
> (They don't.)

Indeed.  That's very sad.  I still think we should do better here.

>> * I'm not sure what the "or does not return a DOMString" text in the "To 
>> resolve namespace prefixes" paragraph means.  Does this mean that if, 
>> say, an ECMAScript an object with a toString() method is returned this 
>> method must not be invoked and instead the namespace should be treated 
>> as unresolvable?
> 
> That is my reading. Is that simply unclear because one might have some
> other expectation?

Yes.  For example, one might expect that anything that can be 
stringified is OK whenever a string is needed, which is a common 
approach in ECMAScript from what I've seen.

-Boris
Received on Wednesday, 26 December 2007 04:32:52 GMT

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