XmlDocumentationProvider Unable to load some XML files to have special characters

[maikebing]

Polls.zip

var xmlDoc = new XmlDocumentationProvider(@"Polls.xml");

The output character buffer is too small to contain decoded characters, and the operation "Unicode" encoding "UTF-8" returns "System.Text.DecoderExceptionFallback". Parameter name: chars

at System.Text.Encoding.ThrowCharsOverflow()
at System.Text.Encoding.ThrowCharsOverflow(DecoderNLS decoder, Boolean nothingDecoded)
at System.Text.UTF8Encoding.GetChars(Byte* bytes, Int32 byteCount, Char* chars, Int32 charCount, DecoderNLS baseDecoder)
at System.Text.DecoderNLS.Convert(Byte* bytes, Int32 byteCount, Char* chars, Int32 charCount, Boolean flush, Int32& bytesUsed, Int32& charsUsed, Boolean& completed)
at System.Text.DecoderNLS.Convert(Byte[] bytes, Int32 byteIndex, Int32 byteCount, Char[] chars, Int32 charIndex, Int32 charCount, Boolean flush, Int32& bytesUsed, Int32& charsUsed, Boolean& completed)
at ICSharpCode.Decompiler.Documentation.XmlDocumentationProvider.LinePositionMapper.GetPositionForLine(Int32 line)
at ICSharpCode.Decompiler.Documentation.XmlDocumentationProvider.ReadMembersSection(XmlTextReader reader, LinePositionMapper linePosMapper, List`1 indexList)
at ICSharpCode.Decompiler.Documentation.XmlDocumentationProvider.ReadXmlDoc(XmlTextReader reader)
at ICSharpCode.Decompiler.Documentation.XmlDocumentationProvider..ctor(String fileName)

[maikebing]

[maikebing]

I wrote the following code, but I don't get an error, I don't know exactly what caused it.

 byte[] input = new byte[] { 172 };
            char[] output = new char[] { (char)32};
            int bytesUsed=1, charsUsed=0;
            bool completed;
            System.Text.UTF8Encoding.UTF32.GetDecoder().Convert(input, 0, 1, output, 0, 1, false, out bytesUsed, out charsUsed, out completed);

[siegfriedpammer]

@dgrunwald I spent some time analyzing this today and it seems that the decoder gets confused by some emoji. I would suggest just catching the exception and skipping over it. What do you think?

[wiz0u]

I experienced this issue with the Telegram.Bot nuget package as well