This attribute is an invalid xml character, which is a bad idea. It’s a known fact that the value of an attribute is less than 1 because it is not written in any valid XML document.
I guess that’s why I’ve never been asked to write an XML document yet.
The problem is that the XML parser will try to resolve the invalid character and then return “Invalid XML” to the client. The client can continue parsing and if it successfully parses it will continue to the rest of the document and try to resolve the invalid character again. This means that the client will receive invalid characters in all of the documents that follow. This is a problem because when the XML parse fails, the client will crash/throw an exception.
One solution is to force the XML parser to accept invalid characters by using the XML character attribute with a value in the Unicode range of 0x0 to 0xFF. The XML character attribute is a U+FFFD (Unicode for FIVE FEET in Latin) character that represents an invalid XML character that was encountered during a XML parse.
In addition to the XML character attribute, you can also use a Unicode U+FFFD as a workaround. One Unicode character U+FFFD in the range of 0x0 to 0xFFF represents a valid XML character that was encountered during a parse. An invalid XML character that was encountered during a parse is an invalid XML character that would have been encountered if the client had used a Unicode U+FFFD in the range of 0x20000 to 0x2FFFF.
The way to work around this is to use the UFFFD for the character range of 0x0 to 0xFFFF in the attribute value. The same thing can be done for any other invalid xml character you have in the XML element attribute, as long as the character is also a valid UFFFD.
This isn’t a “no big deal”, but I guess it is an invalid xml character. I guess this means that we still need to fix the XML itself. I don’t think I’ve ever seen an XML string that was that invalid. And why is it invalid? Because it contains a tag that begins with xmlversion=”1.0″.
The whole point of having a valid XML character is to get rid of all the XML elements. A non-valid XML character is, by nature, a valid sequence of characters, and therefore, a valid XML character could be even more dangerous.
Because xmlversion1.0 is not the actual version of XML, but is instead a version string that should have been used when creating the XML document. A version string is not necessarily valid XML, and a lot of XML documents that have not been updated use a version string that is not valid XML.
