Error Codes and their meaning

If you use the TryLoadRegexPattern method to load regex patterns, you obtain an IParseResult object. Besides the parse status (success/failure) and the position up to which the parsing succeeded, it contains an enumeration encoding the nature of the parsing error in case one occurred.
In the table below are listed all possible error values and their respective meaning:

RegexErrorType	Meaning
IntegerIntervalSeparatorExpected	',' expected.
IntegerIntervalExpected	Integer Interval expected, e.g. '{2,8}'.
SingleCharacterExpected	Single character expected, e.g. 'F'.
CharacterRangeExpected	Character range expected, e.g. 'f-z'.
IntegerExpected	Integer expected, e.g. '-123'.
InvalidInput	Invalid input.
UnexpectedEndOfStream	The input stream ended unexpectedly.
InvalidRange	Invalid character range. The first character has to come before the second one, e.g. 'a-g' and not 'F-a'.
InvalidInterval	Invalid Interval. The lower bound has to be smaller than the upper bound.
CloseCharacterClassExpected	']' expected.
CharacterTypeExpressionExpected	Single character, character range or '.' expected.
ClosePrecedenceExpected	')' expected.
UnionExpressionExpected	'|' expected.

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