[Mono-bugs] [Bug 69350][Nor] New - WriteEndElement doesn't work after XmlTextWriter.WriteAttributes()

bugzilla-daemon@bugzilla.ximian.com bugzilla-daemon@bugzilla.ximian.com
Thu, 11 Nov 2004 05:46:07 -0500 (EST)


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Changed by jaak@zd.com.pl.

http://bugzilla.ximian.com/show_bug.cgi?id=69350

--- shadow/69350	2004-11-11 05:46:07.000000000 -0500
+++ shadow/69350.tmp.19961	2004-11-11 05:46:07.000000000 -0500
@@ -0,0 +1,94 @@
+Bug#: 69350
+Product: Mono: Class Libraries
+Version: unspecified
+OS: All
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Sys.XML
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: jaak@zd.com.pl               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: WriteEndElement doesn't work after XmlTextWriter.WriteAttributes()
+
+I've noticed that WriteAttributes() causes WriteEndElement() to fail to 
+close the XML element.
+
+Compile the following code snippet:
+
+--------------------
+using System;
+using System.Xml;
+using System.IO;
+
+class C1
+{
+        public static string ProcessXml(string s)
+        {
+            StringReader sr = new StringReader(s);
+            StringWriter sw = new StringWriter();
+            XmlTextReader xtr = new XmlTextReader(sr);
+            XmlTextWriter xtw = new XmlTextWriter(sw);
+
+            while (xtr.Read())
+            {
+                if (xtr.NodeType == XmlNodeType.Element)
+                {
+                    xtw.WriteStartElement(xtr.LocalName);
+                    xtw.WriteAttributes(xtr, false);
+                    if (xtr.IsEmptyElement)
+                        xtw.WriteEndElement();
+                } 
+                else if (xtr.NodeType == XmlNodeType.EndElement)
+                {
+                    xtw.WriteEndElement();
+                }
+                else if (xtr.NodeType == XmlNodeType.Whitespace)
+                {
+                    xtw.WriteWhitespace(xtr.Value);
+                }
+                else
+                {
+                    xtw.WriteNode(xtr, false);
+                }
+            }
+
+            return sw.ToString();
+        }
+
+	static void Main()
+	{
+		string input = "<test><a empty='true' /><b 
+empty='false'><c /></b></test>";
+		string output = ProcessXml(input);
+
+		Console.WriteLine("IN:  {0}", input);
+		Console.WriteLine("OUT: {0}", output);
+	}
+}
+-------------------------
+
+ProcessXml should basically replicate its XML input using a pair of 
+XmlTextReader/XmlTextWriter, but on Mono it doesn't.
+
+On .NET 1.1 the output is:
+----------
+IN:  <test><a empty='true' /><b empty='false'><c /></b></test>
+OUT: <test><a empty="true" /><b empty="false"><c /></b></test>
+----------
+
+On Mono/Linux - CVS HEAD:
+----------
+IN:  <test><a empty='true' /><b empty='false'><c /></b></test>
+OUT: <test><a empty="true"><b empty="false"><c /></b></a>
+----------
+
+Notice that the <a> tag isn't closed in this case.
+
+After the WriteAttributes line is commented out the output lacks any 
+attributes but the elements are properly balanced.