- From: L. David Baron <dbaron@dbaron.org>
- Date: Sat, 8 Jun 2013 15:08:51 +0900
- To: www-style@w3.org
http://dev.w3.org/csswg/cssom/#serializing-selectors says: # 2. Otherwise, for each simple selector in the sequence of simple # selectors that is not a universal selector of which the # namespace prefix maps to the null namespace (not in a namespace) # or of which the namespace prefix maps to a namespace that is not # the default namespace serialize the simple selector and append # the result to s. This isn't quite right, because it says to skip universal selectors that are semantically relevant. For example, given the style sheet: @namespace "http://www.w3.org/1999/xhtml"; @namespace nons ""; nons|*:hover { color: blue } /* selector #1 */ |*:active { color: green } /* selector #2 */ it says that selector #1 should be serialized as ":hover", and possibly the same (though I think the wording is ambiguous, since there is no namespace prefix, but the lack of namespace prefix indeed maps to the null namespace) for selector #2. However, in both cases, :hover is semantically different, since ":hover" alone, given the default namespace, matches any elements in the HTML namespace that are in the :hover state. I think the words "of which the namespace prefix maps to the null namespace (not in a namespace) or" should be removed. Universal selectors can be omitted only when their namespace part is the default namespace. -David -- 𝄞 L. David Baron http://dbaron.org/ 𝄂 𝄢 Mozilla http://www.mozilla.org/ 𝄂
Received on Saturday, 8 June 2013 06:09:16 UTC