Re: "Allow rendering of <input checked>-style attributes in HTML mode."
http://github.com/nex3/haml/commit/ae3c44f574f6ef842850ede446e48e4f7bac0191
%input{:selected => false}
will render as:
<input selected="false">
The docs say that this is not equivalent to not rendering an attribute. But,
in fact, it is:
http://www.w3.org/TR/REC-html40/intro/sgmltut.html#didx-boolean_attribute
Some attributes play the role of boolean variables (e.g., the selected
> attribute for the OPTION element). Their appearance in the start tag of an
> element implies that the value of the attribute is "true". Their absence
> implies a value of "false".
>
This is HTML4. It has not changed in XHTML, except that the minimized form
is not allowed anymore.
Because <input selected="false"> and <input> are equivalent, I propose that
%input{:selected => false} does not render the attribute at all. We save
space on complex forms and the semantics are unchanged anyway.
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