XPath matches() using regular expressions in C#

Question

Update: I wrote up what I did, with source code and things to watch for, at - Adding XPath 2.0 functionality and variables to .NET XPath (my blog).

Is there a way to pass a regular expression to matches() for an XPath statement in .NET?

Example: do an xpath of

"/windward-studios/Employees/Employee[matches(string(LastName), '.*A?B[12]C.*')]"

Interesting. Haven't had to use this xpath functionality so I didn't know it wasn't supported in .NET until seeing the answers. Looks like this other post http://stackoverflow.com/questions/1525299/xpath-and-xslt-2-0-for-net covers libraries that provide support in .NET . — bronsoja, Jun 22 '11 at 23:26

Richard Schneider · Accepted Answer · 2011-06-22T23:31:56.803

4

XPath 2.0 supports the matches function. However, .Net implements XPath 1.0.

You would need to add a custom function to implement match. See http://msdn.microsoft.com/en-us/library/ms950806.aspx

It looks like the Mvp.Xml Project: EXSLT.NET module implements most of XPath 2.0; including matches. See http://mvp-xml.sourceforge.net/exslt/

edited Jun 22 '11 at 23:31

answered Jun 22 '11 at 23:22

Richard Schneider

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what about net core? – Akmal Salikhov Oct 08 '20 at 11:54

score 0 · Answer 2 · answered Jun 23 '11 at 08:54

Microsoft's XSLT processor does not support XSLT 2.0, but there are at least two others available on .NET that do: Saxon and XQSharp.

Microsoft basically decided some time ago to go down a proprietary route with Linq, and if you want to stick with a standards-based approach, you will have to go to third parties.

XPath matches() using regular expressions in C#

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