Comments on: .NET and XPath

By: Nick Jones

Nick Jones — Wed, 16 Sep 2009 14:27:33 +0000

We’ve just released a native .NET implementation of XQuery 1.0 and XPath 2.0 at http://www.xqsharp.com/ which is free to try out.

By: John Ingle

John Ingle — Thu, 02 Jul 2009 17:17:13 +0000

That should be: …but there is *no* support for compiling and executing XQuery statments.

I’ve read elsewhere that Microsoft cut XQuery in favor of XSL 2.0 due to customer demand.

By: John Ingle

John Ingle — Thu, 02 Jul 2009 17:15:44 +0000

I’m a bit behind on this discussion, but I’ll comment anyway. As I recall, the data model is not the language. There may very well be support for the XQuery 1.0/XPath 2.0 Data Model in the .NET Framework, but there is support for compiling and executing XQuery statements. I’ve been struggling with XQuery in .NET for a few weeks now. I’ve used saxon and it works quite well, but I do wish there were native framework support for it.

By: M. David Peterson

M. David Peterson — Sun, 22 Feb 2009 07:45:21 +0000

Oh! Almost forgot to mention that you can gain direct support for XPath 2.0, XQuery 1.0, and XSLT 2.0 inside of .NET via Saxon.NET: http://saxon.sourceforge.net/

By: M. David Peterson

M. David Peterson — Sun, 22 Feb 2009 07:40:09 +0000

As far as PHP supporting XPath 2.0, there shouldn’t be any reason why you couldn’t create a wrapper around XQilla: http://xqilla.sourceforge.net/HomePage

By: M. David Peterson

M. David Peterson — Sun, 22 Feb 2009 07:32:46 +0000

Stumbled across this post searching for some XPath 2.0 related material. Just to clarify, Microsoft at one point planned to support XQuery 1.0 which is built on top of XPath 2.0 and in fact they provided support for earlier versions of the specifications inside some of the earlier CTP’s for the .NET 2.0 framework. It’s likely you stumbled upon documentation that hadn’t been updated to match the fact that they removed that support before the final release of .NET 2.0.

As a matter of interest, Atsushi started work on both XPath 2.0 and XQuery, but when MSFT removed their implementation he removed it and placed it in the Mono.Xml.Ext namespace: http://www.mono-project.com/XML#Mono.Xml.Ext

By: Chris

Chris — Thu, 08 Jan 2009 17:07:19 +0000

I’d say the chances of anyone supporting XPath 2.0 soon are not very high.

By: Dieter

Dieter — Thu, 08 Jan 2009 16:20:16 +0000

Any idea if PHP is ever going to support XPath 2.0? :s

By: Chris

Chris — Fri, 04 Jul 2008 17:05:26 +0000

What does this mean then?

“The XPathNavigator class in the System.Xml.XPath namespace is an abstract class which defines a cursor model for navigating and editing XML information items as instances of the XQuery 1.0 and XPath 2.0 Data Model.”

By: Atsushi Eno

Atsushi Eno — Tue, 01 Jul 2008 17:33:16 +0000

The fact is very simple: XPath 2.0 is not supported by any of them. Anything that is only in 2.0 must be regarded as invalid expression. So, every implementation mentioned here is correct.

MSDN documetation does not say that it supports XPath 2.0 nor XQuery 1.0 (especially functions and operators).

XQuery 1.0 / XPath 2.0 F&O *working draft* is of course wrong. You cannot find corresponding part in the recommendation.

And yes, I don’t like XQuery and XPath 2.0 which are part of pro-xsd family.