[uf-rest] Introducing JAHAH

[Bob Ippolito]

 From what I understand, you're missing the point.  The key is that  
the <SCRIPT> tag can be used to load JAHAH across domains, thus the  
payload absolutely must be JavaScript of some sort.  JSON is the  
simplest subset of JavaScript to produce, so it's the only good  
choice here.

YAML is technically a superset of JSON these days, but YAML is  
extremely difficult to parse and good parsers aren't available  
everywhere.  JSON is extremely simple to parse, and good parsers are  
available pretty much everywhere.  As far as Python goes, YAML is  
pretty much dead in the water.

-bob

On Jan 5, 2006, at 10:47 AM, Dr. Ernie Prabhakar wrote:

> Hi David,
>
> Welcome to the list, and thanks for this innovative contribution!
>
> I do have one concern, though.   JSON sounds an awful lot like YAML  
> and (especially around here) XOXO:
>
> http://www.yaml.org/
> http://microformats.org/wiki/xoxo
> http://microformats.org/discuss/mail/microformats-discuss/2005- 
> September/001020.html
>
> My preference would be to use XOXO as the transport, so that *all*  
> intermediate data is legal HTML.  Would that be possible/desirable  
> within the JSON metaphor? If not, why not?
>
> Thanks,
> -- Ernie P.
>
> P.S.  Hi Bob!
>
> On Jan 5, 2006, at 5:47 AM, David Janes -- BlogMatrix wrote:
>
>> I came to this group by a slightly strange path -- I wanted a way  
>> of providing webservices that others could load into their own  
>> webpages. "traditional" AJAX, if there is such a beast, cannot do  
>> this because of limitations with cross site scripting.
>>
>> I mulled this over for a while and discovered at Christmas time  
>> that one can use the SCRIPT element to dynamically load scripts  
>> from anywhere. I had also been looking at a technology called JSON  
>> which has huge replacement to be a widely used net transport  
>> language, as it's much easier to deal with that XML. JSON led me  
>> to Bob Ippolito's JSONP, which lets me combine the SCRIPT with  
>> JSON with a callback.
>>
>> Finally, looking back through my notes, I revisited AHAH which  
>> provided an easy method for producers and consumers to use HTML in  
>> "AJAX-y" applications.
>>
>> Combining them all together, I've produced JAHAH (pronounced the  
>> German way).
>>
>> - it allows cross site scripting
>> - if the "jsonp" parameter is not passed to the webservice, HTML  
>> documents are returned
>> - if it is, a simple JSON payload is returned with "html" holding  
>> the HTML document; arbitrary other data can be added to the payload
>>
>> I've written a deeper description here [1], the official home  
>> (please don't like to the temporary redirect) and I'm providing  
>> code samples, JAHAH webservices for extracting HTML from files or  
>> looking at RSS feeds, and all my sources. If you'd like to  
>> publicly comment or link to it on a blog, please also link to [2].  
>> My code also builds on Ippolito's MochiKit.
>>
>> Regards, etc...
>> David
>>
>> [1] http://www.blogmatrix.com/tools/jahah/
>> [2] http://blog.davidjanes.com/mtarchives/2006_01.html#003498
>>
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>