[whatwg] Allowed characters in attribute names (was: Re: Steps for finding one or two numbers in a string)
zcorpan at gmail.com
Tue Jun 12 18:02:54 PDT 2007
On Tue, 12 Jun 2007 22:28:52 +0200, Kristof Zelechovski
<giecrilj at stegny.2a.pl> wrote:
> The specification enumerates all accepted element attributes. Neither of
> them transgresses ASCII boundaries. Since it can be directly inferred
> the text, the explicit statement about that
> is not needed, although it does no harm either.
"Any (namespace-less) attribute may be specified on the embed element."
Since attribute names that use characters outside ASCII aren't parse
errors, and any attribute is allowed on the embed element, the definition
of "Attribute names" in #writing is incorrect.
I would suggest to change the definition in #writing to say that attribute
names can consist of any characters except whitespace, =, >, / and <.
Although that isn't quite right either. The parsing section allows
attributes to begin with =. Given the following markup:
Safari, Opera and Firefox drop the attribute. IE has an attribute with the
name being the empty string and the value being ="". The HTML5 parsing
spec says that there should be an attribute with the name = and the value
the empty string. The "Before attribute name state" part of the parsing
spec might have to be revisited.
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