[Zope3-dev] Re: idea: attr:foo addition to tal

[Philipp von Weitershausen]

Tonico Strasser wrote:

> Steve Alexander wrote:
> 
>> I was writing yet another tal:attributes expression, when I had the 
>> following idea.
>>
>> How about if there were an 'attr' namespace that the tales interpreter 
>> understands that replaces attributes?
>>
>> So, instead of
>>
>>   <a tal:attributes="href item/url" tal:content="item/description" />
>>
>> we get
>>
>>   <a attr:href="item/url" tal:content="item/description" />
> 
> 
> -1 for me.
> 
>   <a attr:xml:lang="here/lang"/>

Using namespaces in XHTML is a rare case; however, we don't want to 
limit Page Templates to non-namespaced XML templates. But since it's a 
rare case, it wouldn't hurt falling back to tal:attributes there.

Or, we could have a different separate, e.g.:

<a attr:xml#lang="here/lang" />

Then again, I would have to read the spec to see if # or similar are 
allowed in attribute names...

> Would this be possible? If yes, is it still valid XML?

I doubt both.

Philipp