[Mono-bugs] [Bug 562155] New: XML parsing fails when executing on iPhone

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=562155

http://bugzilla.novell.com/show_bug.cgi?id=562155#c0


           Summary: XML parsing fails when executing on iPhone
    Classification: Mono
           Product: MonoTouch
           Version: SVN
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Class Libraries
        AssignedTo: gnorton at novell.com
        ReportedBy: mantas at unity3d.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=331963)
 --> (http://bugzilla.novell.com/attachment.cgi?id=331963)
source code that exibits the problem

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US;
rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5

Attached code loads and parses XML document
(http://www.w3schools.com/XML/plant_catalog.xml) just fine when executed on
desktop mono.
But it will fail with exception when executed on iphone using monotouch
classlibs.

Exception details on iPhone:
System.Xml.XmlException: invalid data.
  at System.Xml.XmlStreamReader.Read (System.Char[] dest_buffer, Int32 index,
Int32 count) [0x00000] 
  at Mono.Xml2.XmlTextReader.ReadTextReader (Int32 remained) [0x00000] 
  at Mono.Xml2.XmlTextReader.PeekChar () [0x00000] 
  at Mono.Xml2.XmlTextReader.ReadContent () [0x00000] 
  at Mono.Xml2.XmlTextReader.Read () [0x00000] 
  at System.Xml.XmlTextReader.Read () [0x00000] 
  at parser1.ParseFile (System.String strPath) [0x00000] 

I manually compiled monotouch classlibs and added detailed logs of internal
exception:
System.Text.DecoderFallbackException: Exception of type
'System.Text.DecoderFallbackException' was thrown.
  at System.Text.DecoderExceptionFallbackBuffer.Fallback (System.Byte[]
bytesUnknown, Int32 index) [0x00000] 
  at System.Text.UTF8Encoding.Fallback (System.Object provider,
System.Text.DecoderFallbackBuffer& buffer, System.Byte[]& bufferArg,
System.Byte* bytes, Int64 byteIndex, UInt32 size, System.Char* chars,
System.Int32& charIndex) [0x00000] 
  at System.Text.UTF8Encoding.InternalGetChars (System.Byte* bytes, Int32
byteCount, System.Char* chars, Int32 charCount, System.UInt32& leftOverBits,
System.UInt32& leftOverCount, System.Object provider,
System.Text.DecoderFallbackBuffer& fallbackBuffer, System.Byte[]& bufferArg,
Boolean flush) [0x00000] 
  at System.Text.UTF8Encoding.InternalGetChars (System.Byte[] bytes, Int32
byteIndex, Int32 byteCount, System.Char[] chars, Int32 charIndex,
System.UInt32& leftOverBits, System.UInt32& leftOverCount, System.Object
provider, System.Text.DecoderFallbackBuffer& fallbackBuffer, System.Byte[]&
bufferArg, Boolean flush) [0x00000] 
  at System.Text.UTF8Encoding+UTF8Decoder.GetChars (System.Byte[] bytes, Int32
byteIndex, Int32 byteCount, System.Char[] chars, Int32 charIndex) [0x00000] 
  at System.Xml.NonBlockingStreamReader.ReadBuffer () [0x00000] 
  at System.Xml.NonBlockingStreamReader.Read (System.Char[] dest_buffer, Int32
index, Int32 count) [0x00000] 
  at System.Xml.XmlStreamReader.Read (System.Char[] dest_buffer, Int32 index,
Int32 count) [0x00000] 
System.Xml.XmlException: invalid data..   at System.Xml.XmlStreamReader.Read
(System.Char[] dest_buffer, Int32 index, Int32 count) [0x00000] 
  at Mono.Xml2.XmlTextReader.ReadTextReader (Int32 remained) [0x00000] 
  at Mono.Xml2.XmlTextReader.PeekChar () [0x00000] 
  at Mono.Xml2.XmlTextReader.ReadContent () [0x00000] 
  at Mono.Xml2.XmlTextReader.Read () [0x00000] 
  at System.Xml.XmlTextReader.Read () [0x00000] 
  at parser1.ParseFile (System.String strPath) [0x00000] 
  at parser1.Start () [0x00000] 
System.SystemException: System.Text.DecoderFallbackException: Exception of type
'System.Text.DecoderFallbackException' was thrown.
  at System.Text.DecoderExceptionFallbackBuffer.Fallback (System.Byte[]
bytesUnknown, Int32 index) [0x00000] 
  at System.Text.UTF8Encoding.Fallback (System.Object provider,
System.Text.DecoderFallbackBuffer& buffer, System.Byte[]& bufferArg,
System.Byte* bytes, Int64 byteIndex, UInt32 size, System.Char* chars,
System.Int32& charIndex) [0x00000] 
  at System.Text.UTF8Encoding.InternalGetChars (System.Byte* bytes, Int32
byteCount, System.Char* chars, Int32 charCount, System.UInt32& leftOverBits,
System.UInt32& leftOverCount, System.Object provider,
System.Text.DecoderFallbackBuffer& fallbackBuffer, System.Byte[]& bufferArg,
Boolean flush) [0x00000] 
  at System.Text.UTF8Encoding.InternalGetChars (System.Byte[] bytes, Int32
byteIndex, Int32 byteCount, System.Char[] chars, Int32 charIndex,
System.UInt32& leftOverBits, System.UInt32& leftOverCount, System.Object
provider, System.Text.DecoderFallbackBuffer& fallbackBuffer, System.Byte[]&
bufferArg, Boolean flush) [0x00000] 
  at System.Text.UTF8Encoding+UTF8Decoder.GetChars (System.Byte[] bytes, Int32
byteIndex, Int32 byteCount, System.Char[] chars, Int32 charIndex) [0x00000] 
  at System.Xml.NonBlockingStreamReader.ReadBuffer () [0x00000] 
  at System.Xml.NonBlockingStreamReader.Read (System.Char[] dest_buffer, Int32
index, Int32 count) [0x00000] 
  at System.Xml.XmlStreamReader.Read (System.Char[] dest_buffer, Int32 index,
Int32 count) [0x00000] 

I think that problem is caused by (R) symbol in XML document comments.

P.S. Already discussed this issue on IRC with Kangaroo


Reproducible: Always

Steps to Reproduce:
1. Compile & run attached code on desktop mono
2. It will run fine, XML nodes get printed to console
3. Compile & run attached code on iphone using Monotouch classlibs. It will
fail with exception.

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