Wireless XML - Detecting User Agents? How..

Subject: Wireless XML - Detecting User Agents? How..
From: Jonathan Asbell <jonathan.asbell@xxxxxxxxxxxxxx>
Date: Wed, 17 May 2000 15:16:00 -0400
Does anyone know what header info differentiates between a Palm Pilot
wireless device and a cell phone?  I am trying to use servlets and Cocoon to
output according to differenr user agents



-----Original Message-----
From: Pawson, David [mailto:DPawson@xxxxxxxxxxx]
Sent: Wednesday, April 26, 2000 8:14 AM
To: 'xsl-list@xxxxxxxxxxxxxxxx'; wap_technical@xxxxxxxxxxx
Subject: RE: Driving XSL based on WAP phone characteristics


 Neill James 

>The wapforum body is looking at extending the scope of what is 
>effectively
>the HTTP_USER_AGENT header field to include more structured information
>about the functional capabilities and physical characteristics 
>of WAP based
>mobile devices (eg, screen height, colour availability, font 
>availability).

Is this the ccpp work at http://www.w3.org/Mobile/CCPP/ ?



>
>Has anybody looked at how these characteristics can be used to 
>drive an XSL
>style sheet to deliver an XML transformation that provides a 
>good look and
>feel for any WAP device (for which the characteristics are known)?
>
>Do you reckon this is just a pipe dream. Or is the only option to do
>seperate XSL files to deliver XML content for each WAP device that is
>distinct from the next. For me, this sounds like a nightmare 
>as there are so
>many device types out there - and more to come.

Some neutrality would help, some parameterisation of capability
to drive the transform, I think the rest is just that, seperate stylesheets
to cater for gross differences.

Erics interception of the output stream might be of use, for instance
in setting screen (hence line) width. That might increase the flexibility
even more. See 
http://downloads.dyomedea.com/java/examples/outputhandlers/formatedtext/

DaveP



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