[Zope-dev] Re: [Zope3-dev] Re: Re: RFC: TALES adapters and TAL/Tales variable namespaces

[Jim Fulton]

Tres Seaver wrote:
> Jim Fulton wrote:
> 
>> Sidnei da Silva wrote:
>>
>>> | So far, I like:
>>> | |   foo/bar->dc/title
>>> | | the best.
>>>
>>> OTOH, for 'valid' xhtml, u would have to write:
>>
>>
>> You mean well-formed.
>>
>>>  foo/bar->dc/title
>>>
>>> Totally defeating the purpose. One may argue that this would not be
>>> part of the output, but it breaks the editors (at least nxml-mode).
>>
>>
>> Wrong. Double check the spec.  (I did. :)
>>
>> http://www.w3.org/TR/2004/REC-xml11-20040204/#NT-AttValue
>>
>> You only need to escape the less-than because there's no way to
>> mistake "a->b" as a tag.
> 
> 
> xmllint (from libxml2) doesn't think the '>' is legitimate::
> 
>   [/home/tseaver]
>   $ cat > test.xml
>   <?xml version="1.0"?>
>   <test attribute="foo > bar" />
>   [/home/tseaver]
>   $ xmllint test.xml
>   <?xml version="1.0"?>
>   <test attribute="foo &gt; bar"/>

Pehaps, in the tradition of lint programs, it's being conservative.

> I would be reluctant to duel with Daniel using my XML language lawyer 
> chops.

The spec is pretty clear.

But, if tools are going to be confused by this, we should avoid it.

Jim

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