[Zope3-dev] Re: tal:define="..." considered harmful?
Jean-Marc Orliaguet
jmo at ita.chalmers.se
Sun Feb 12 13:57:52 EST 2006
Andreas Jung wrote:
>
>
> --On 12. Februar 2006 19:18:51 +0100 Max M <maxm at mxm.dk> wrote:
>
>>
>> <a href="#"
>> tal:attributes="href here/absolute_url;
>> title here/title;
>> id here/getId"
>> tal:content="here/Title">Title</a>
>>
>>
>> I could write this:
>>
>> <a href="here/absolute_url" id="here/getId" title="here/Title"
>> tal:attributes="href; id; title"
>> tal:content="here/Title">Title</a>
>>
>
> That's really syntactical sugar. The purpose of the tal: names is clearly
> to tell the parser to do _something_ with the value of an attribute. Now
> should a parser guess if the value of an attribute is something to be
> processed or not? -1 for such ideas.
>
> -aj
That's more or less what i18n:attributes="attr1 attr2 ..." does already.
We continued the discussioned off-list earlier, and one idea that came
up was:
what do we need to carry along the "context", "here", "request", "view"
variables ... instead of having a single namespace, i.e. if I pass
{'title': 'some title'} to the template, it is tempting to be able to write:
<div tal:content="title">title comes here</div>
instead of:
<div tal:content="here/title">title comes here</div>
one of the reasons for adding the 'here' namespace is that 'title' could
as well be a local variable. But if "tal:define" is not implemented that
is not an issue anymore since there are no local variables. That's what
other template languages do by the way, I guess that CTAL will simplify
things too by exposing a single data structure to the user where
everything is merged already.
/JM
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