Bug 30969 – A no-prefix XPath node test should not match no-namespace elements in HTML document

• Component: XML
• Status: RESOLVED FIXED

[Alexey Proskuryakov]

Because it matches elements in the default XHTML namespace, and XHTML now says that this should change, see <http://www.w3.org/Bugs/Public/show_bug.cgi?id=7059>.

[Alexey Proskuryakov]

Created attachment 42243 [details]
proposed patch

[Darin Adler]

Comment on attachment 42243 [details]
proposed patch

> -            if (node->isHTMLElement() && node->document()->isHTMLDocument()) {
> -                // Paths without namespaces should match HTML elements in HTML documents despite those having an XHTML namespace. Names are compared case-insensitively.
> -                return equalIgnoringCase(static_cast<Element*>(node)->localName(), name) && (namespaceURI.isNull() || namespaceURI == node->namespaceURI());
> +            if (node->document()->isHTMLDocument()) {
> +                if (node->isHTMLElement()) {
> +                    // Paths without namespaces should match HTML elements in HTML documents despite those having an XHTML namespace. Names are compared case-insensitively.
> +                    return equalIgnoringCase(static_cast<Element*>(node)->localName(), name) && (namespaceURI.isNull() || namespaceURI == node->namespaceURI());
> +                } else {
> +                    // An expression without any prefix shouldn't match no-namespace nodes (because HTML5 says so).
> +                    return static_cast<Element*>(node)->hasLocalName(name) && namespaceURI == node->namespaceURI() && !namespaceURI.isNull();
> +                }

We normally don't do else after return.

It would be nice if the test case covered a few more cases than just the bug-fixed one.

r=me

[Alexey Proskuryakov]

> It would be nice if the test case covered a few more cases than just the
> bug-fixed one.

We've got a number of tests for namespaces in XPath element node tests - these few lines of code have a long history.

[Alexey Proskuryakov]

Committed <http://trac.webkit.org/changeset/50419>.