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Re: XSLT for Mashups

Subject: Re: XSLT for Mashups
From: Florent Georges <lists@xxxxxxxxxxxx>
Date: Fri, 5 Mar 2010 16:34:59 +0000 (GMT)
Re:  XSLT for Mashups
Alex Clark wrote:


> What is the best way to move forward on this standard?
Of course, my response is EXPath ;-)

  EXPath is a project dedicated at
defining extensions in an
implementation-independent way.  The main means to
doing so is to
define XPath functions, so they can be implemented (and used)
for
XSLT, XQuery, XProc, XPath, XForms, etc.

  There are also attempts to
define other kinds of tools, like a
packaging system for several XML-related
technologies, and a
servlet-like specification to write web applications in
XSLT,
XQuery and/or XProc.

  My approach to building web services libraries
in XSLT is to
use the EXPath HTTP Client extension (which provides the
function
http:send-request() to perform HTTP requests).  I have a draft
library which implements for instance some Google APIs (for their
documents,
contacts and other services).  It is written in plain
XSLT, using the HTTP
Client as the only extension to actually
perform the HTTP requests (actually
the goal is to write them in
a subset of XSLT so they could be automatically
translated to
XQuery libraries as well).

  I have also written a web
application (based on the above-
described webapp framework) to backup some
Google Servcies data.
It simply uses those Google APIs written in XSLT to
access the
Google services.

  By using such "standard" extensions, the
library (or webapp)
author ensure his/her libraries/webapps are not bound to
any
specific processor.  The key here is of course to what extent
those
extensions will be adopted by vendors.  But there are signs
they are in good
position (hopefully :-)).

  More information in XML Prague next week!

  If
you want to read more about the project: http://expath.org/
and if you want to
discuss further: http://expath.org/lists.html.

  Regards,

-- 
Florent
Georges
http://www.fgeorges.org/

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