[Mono-bugs] [Bug 39079][Wis] New - SelectSingleNode

bugzilla-daemon@rocky.ximian.com bugzilla-daemon@rocky.ximian.com
Tue, 4 Mar 2003 21:24:23 -0500 (EST)

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Changed by ginga@kit.hi-ho.ne.jp.


--- shadow/39079	Tue Mar  4 21:24:23 2003
+++ shadow/39079.tmp.18856	Tue Mar  4 21:24:23 2003
@@ -0,0 +1,57 @@
+Bug#: 39079
+Product: Mono/Class Libraries
+Version: unspecified
+OS Details: 
+Status: NEW   
+Priority: Wishlist
+Component: System.XML
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: ginga@kit.hi-ho.ne.jp               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+Summary: SelectSingleNode 
+Description of Problem:
+Even though we specify xpath reverse order axis expression (e.g.
+"ancestor::foo") MS.NET always returns SelectSingleNode() result
+in document order, non-conformant to W3C XPath recommendation.
+Current Mono returns more wise result, conformant to W3C XPath
+recommendation, but inconsistent with MS.NET as a result.
+Steps to reproduce the problem:
+use XmlDocument.SelectSingleNode(expression) and specify
+expression with reverse document order axis.
+    XmlDocument doc = new XmlDocument ();
+    doc.LoadXml ("<foo a='1'><foo a='2'><foo a='3'><bar
+    XmlElement bar = doc.SelectSingleNode ("//bar") as XmlElement;
+    XmlElement foo = bar.SelectSingleNode ("ancestor::foo") as
+    Console.WriteLine (foo.GetAttribute ("a"));
+Actual Results:
+  Console output: 3
+Expected Results:
+  Console output: 1
+How often does this happen? 
+  Always (specified reverse order axes)
+Additional Information:
+See "document reverse order" here:
+  http://www.w3.org/TR/xpath
+You may also be intersted in what they say about it:
+  http://msdn.microsoft.com/msdnmag/issues/03/02/XMLFiles/