Reason (XmlParseError property)

Enumerated cause of the exception (XmlParseError class)

Syntax

%xmlParseErrorReason = xmlParseError:Reason

Syntax terms

%reason	This XmlParseErrorReason enumeration value describes the parsing error.
%xmlParseErr	A reference to an instance of an XmlParseError object.

Usage notes

• An XmlParseErrorReason enumeration may have one of the following values, each of which is demonstrated in the example below.

  InvalidUnicodeCharacter

  The Unicode input contains an invalid character.

  InvalidUTF8Encoding

  The input UTF8 stream is invalid.

  InvalidUTF16Encoding

  The input UTF16 stream is invalid.

  SyntaxError

  A violation of the syntax of an XML document.

  UntranslatableEBCDIC

  The EBCDIC input contains a character that is not translatable to Unicode.

  UntranslatableISOn

  The ISO-8859-n input contains a character that is not translatable to Unicode.

  UntranslatableUnicode

  The Unicode input contains a character that is not translatable to EBCDIC. This exception can be avoided using the AllowUntranslatable option of the deserialization method.

Example

The following template is used to apply the LoadXml deserialization method to a series of test input-string values to demonstrate the XmlParseError exception output:

Try PrintText {~}: {%d:LoadXml(&'italic(input-string))} Catch XmlParseError to %err Print ' ' Print 'Error Reason:' And %err:Reason:ToString Print 'Error Description:' And %err:Description Print 'Error Character Position:' And %err:CharacterPosition Print 'Error Input Hex Value:' And %err:InputHexValue Print ' - - -' End Try

These are the results:

%d:LoadXml('<a>'): Error Reason: SyntaxError Error Description: XML doc parse error: missing ETag for top level element near or before position 4 (end of input) Error Character Position: 4 Error Input Hex Value: - - -

%d:LoadXml('<' With 'FF':X With '>') Error Reason: UntranslatableEBCDIC Error Description: XML doc parse error: EBCDIC character not translatable to Unicode near or before position 3 Error Character Position: 3 Error Input Hex Value: FF - - -

%d:LoadXml('<a>&amp;#x2122;</a>':U) Error Reason: UntranslatableUnicode Error Description: XML doc parse error: invalid Unicode character - not translatable to EBCDIC near or before position 5 Error Character Position: 5 Error Input Hex Value: 2122 - - -

%d:LoadXml('FEFF003C33':X) Error Reason: InvalidUTF16Encoding Error Description: XML doc parse error: expecting additional byte of UTF-16 encoding near or before position 2 (end of input) Error Character Position: 2 Error Input Hex Value: 33 - - -

%d:LoadXml('FEFFD800':X) Error Reason: InvalidUnicodeCharacter Error Description: XML doc parse error: surrogate point in UTF-16 input near or before position 1 Error Character Position: 1 Error Input Hex Value: D800 - - -

%d:LoadXml('C181':X) Error Reason: InvalidUTF8Encoding Error Description: XML doc parse error: byte 1 of 2 too low in UTF-8 encoding near or before position 2 Error Character Position: 2 Error Input Hex Value: C181 - - -

%d:LoadXml('FF818256':X) Error Reason: InvalidUTF8Encoding Error Description: XML doc parse error: attempt to use 4-byte UTF-8 encoding of surrogate point near or before position 2 Error Character Position: 2 Error Input Hex Value: FF - - -

%d:LoadXml('EDA080':X) Error Reason: InvalidUnicodeCharacter Error Description: XML doc parse error: invalid Unicode character (surrogate range) near or before position 2 Error Character Position: 2 Error Input Hex Value: EDA080 - - -

See also

XmlParseError class	List of XmlParseError methods	XmlParseError methods syntax
Notation conventions for methods