Is it possible to use regular expressions inside of an xpath statement executed by System.Xml.XmlDocument.SelectSingleNode() ?

[Daniel]

Is it possible to use regular expressions inside of an xpath statement
executed by System.Xml.XmlDocument.SelectSingleNode() ?

string sdoc = "<foo><bar a='1'/><bar a='2'/></foo>";
System.Xml.XmlDocument pdoc = new System.Xml.XmlDocument();
pdoc.LoadXml(sdoc);
System.Xml.XmlNode pnode =
pdoc.SelectSingleNode("//foo/bar/matches(.,'\\d')");
string foo = pnode.InnerText;
int i23 = 23 + 23;

[Oleg Tkachenko [MVP]]

Daniel wrote:

Is it possible to use regular expressions inside of an xpath statement
executed by System.Xml.XmlDocument.SelectSingleNode() ?

string sdoc = "<foo><bar a='1'/><bar a='2'/></foo>";
System.Xml.XmlDocument pdoc = new System.Xml.XmlDocument();
pdoc.LoadXml(sdoc);
System.Xml.XmlNode pnode =
pdoc.SelectSingleNode("//foo/bar/matches(.,'\\d')");
string foo = pnode.InnerText;
int i23 = 23 + 23;

Yes, when using EXSLT.NET. See
http://msdn.microsoft.com/xml/defaul...ctexslt_topic4

--
Oleg Tkachenko [XML MVP, MCAD]
http://www.XmlLab.Net | http://www.XLinq.Net | http://blog.tkachenko.com

[Oleg Tkachenko [MVP]]

Daniel wrote:

Is it possible to use regular expressions inside of an xpath statement
executed by System.Xml.XmlDocument.SelectSingleNode() ?

string sdoc = "<foo><bar a='1'/><bar a='2'/></foo>";
System.Xml.XmlDocument pdoc = new System.Xml.XmlDocument();
pdoc.LoadXml(sdoc);
System.Xml.XmlNode pnode =
pdoc.SelectSingleNode("//foo/bar/matches(.,'\\d')");
string foo = pnode.InnerText;
int i23 = 23 + 23;

Forgot to mention that latest EXSLT.NET version can found at
http://www.xmlmvp.org/exslt.

--
Oleg Tkachenko [XML MVP, MCAD]
http://www.XmlLab.Net | http://www.XLinq.Net | http://blog.tkachenko.com

[Daniel]

EXSLT.NET has nothing to support regular expressions inside of xpath for
System.Xml.XmlNode xpath methods such as SelectNodes or SelectSingleNode

http://msdn.microsoft.com/xml/defaul...ctexslt_topic4
"Oleg Tkachenko [MVP]" <so**@body.com> wrote in message
news:Of**************@TK2MSFTNGP03.phx.gbl...

Daniel wrote:

Is it possible to use regular expressions inside of an xpath statement
executed by System.Xml.XmlDocument.SelectSingleNode() ?

string sdoc = "<foo><bar a='1'/><bar a='2'/></foo>";
System.Xml.XmlDocument pdoc = new System.Xml.XmlDocument();
pdoc.LoadXml(sdoc);
System.Xml.XmlNode pnode =
pdoc.SelectSingleNode("//foo/bar/matches(.,'\\d')");
string foo = pnode.InnerText;
int i23 = 23 + 23;

Yes, when using EXSLT.NET. See
http://msdn.microsoft.com/xml/defaul...ctexslt_topic4

--
Oleg Tkachenko [XML MVP, MCAD]
http://www.XmlLab.Net | http://www.XLinq.Net | http://blog.tkachenko.com

[Oleg Tkachenko [MVP]]

Daniel wrote:

EXSLT.NET has nothing to support regular expressions inside of xpath for
System.Xml.XmlNode xpath methods such as SelectNodes or SelectSingleNode

These methods are just wrappers around XPathNavigator.Select() method
and you are right, they are useless with EXSLT.NET. Use XPathNavigator
instead. Here is a sample how to use EXSLT function with XmlDocument and
XPath.

XmlDocument doc = new XmlDocument();
doc.Load("foo.xml");
XPathNavigator nav = doc.CreateNavigator();
XPathExpression expr = nav.Compile("set:distinct(//@country)");
expr.SetContext(new ExsltContext(doc.NameTable));
XPathNodeIterator ni = nav.Select(expr);
while (ni.MoveNext()) {
Console.WriteLine(ni.Current.Value);
}

--
Oleg Tkachenko [XML MVP, MCAD]
http://www.XmlLab.Net | http://www.XLinq.Net | http://blog.tkachenko.com