Re: [css3-text] grapheme clusters across element boundary

On Mon, Jan 16, 2012 at 3:20 PM, Boris Zbarsky <bzbarsky@mit.edu> wrote:

>
>> It is pretty clear to me that a conforming implementation of the above
>> will not (or should not) permit e.textContent="\ud834" to complete
>> without throwing some exception, at least without willfully violating
>> these conformance requirements.
>>
>
> "\ud834" could perhaps throw an exception in ES, though you should check
> the actual processing model defined for \u escapes to make sure.
>
> But if it does NOT, then what you have on the right-hand side of that
> assignment is an array of 16-bit integers, not a Unicode string.  And what
> happens on assignment is defined by the DOM spec, which likewise doesn't
> refer to Unicode strings (DOMString is defined to be an array of arbitrary
> 16-bit integers, just like ES strings).
>
>
>  If DOM-4 does not make this clear, then perhaps it should.
>>
>
> This would be a behavior change from existing UAs that would break the
> web, as far as I can see.  It's certainly not how the DOM has worked so far.
>
> If you do want such a spec change, go for it, but I doubt UAs can do this.
>  See "break the web".


Ah, we're at the "you're going to break the web" part of this interchange...