[whatwg] foreign attributes Re: several messages about XML syntax and HTML5
Ian Hickson
ian at hixie.ch
Tue Dec 5 14:29:55 PST 2006
On Tue, 5 Dec 2006, Elias Torres wrote:
>
> [...]
I'm having trouble understanding what you're doing.
Could you provide some actual code examples? They can be fictional, I'm
just trying to work out what you're doing.
For example:
> At the moment we have data defined using by XML schemas that are used by
> customers to describe industry-specific information such as automotive
> parts.
I don't understand why you would be sending this information in HTML
documents.
> > RDFa gives you no more than HTML5's parsing algorithm does -- you
> > still just end up with an arbitrary blob of data, the meaning of which
> > you have to define.
>
> I respectfully disagree. I'm not sure how familiar you are with RDFa but
> it gives specific instructions on how to find/extract tagged data within
> the page.
Again, could you give some specific code samples to demonstrate this?
> HTML pages are one possible representation of resources. These
> resources have data models that exist beyond the html page, frequently
> they exist as xml. When these resources are rendered as html we would
> like to still be able to tie the visual representation back to the
> underlying data model. This allows us, for example, to deduce that a
> person, an event or a customer order is on the page.
I don't understand why you can't just include the information like this:
<p class="ibm-order">
<span class="ibm-customer">
<span class="ibm-name">Ian Hickson</span>
(<span class="ibm-id">95237032895</span>)
</span>
has purchased a
<span class="ibm-part">
<span class="ibm-name">Widget x12</span>
(part ID <span class="ibm-id">295250X12</span>)
</span>
</p>
<p class="ibm-order ibm-deleted">
...
</p>
You can then process this simply:
// find all the orders on the page:
var orders = document.getElementsByClassName(['ibm-order']);
// process them
for (var i = 0; i < orders.length; ++i) {
var order = orders[i];
// if it's deleted, ignore it
if (order.className.has('ibm-deleted'))
continue;
// get the customer ID
var userID = order.getElementsByClassName(['ibm-customer'])
.getElementsByClassName(['ibm-id'])
.textContent;
// get the part ID
var partID = order.getElementsByClassName(['ibm-part'])
.getElementsByClassName(['ibm-id'])
.textContent;
// add this user/part to the list:
addToList(userID, partID);
}
What would this look like in your ideal world? Could you give some
examples of what the above would be like, with code samples?
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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