[whatwg] Should ambiguous ampersand be a parse error?

[Jukka K. Korpela]

2013-12-10 22:20, Boris Zbarsky wrote:

> In this case, it's an eminently validator-enforceable authoring
> requirement.

That’s a more or less a wannabe-normative requirement that “validators” 
are supposed to enforce. There is no real HTML5 validator so far (not 
surprising, as there is no HTML5), but the point is that nobody who does 
not use a “validator” will see the requirement as “enforced”-

>> Allowing user agents to stop parsing after a parse error (BTW, where
>> exactly does the WHATWG HTML Living Standard allow that?)
>
> Did you try following the links in my mail?  Let me try again, but this
> time do actually follow the link:
> http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#parse-error

“This section only applies to user agents, data mining tools, and 
conformance checkers.” So what about conformance of documents?

If browsers are allowed to quit, or to proceed, then this is a very 
theoretic proposition. Technically, it does not define document 
conformance, does it?

Yucca