9
Heading :Regular Expression Error : 
Trailing_Chars :The string '<>' was found after a right anchor!
Unexpected_Char :Unexpected character '<>' found!
Missing_Brace :The character '<>' found instead of a right brace!
Missing_Dup_No :The character '<>' found instead of a duplication count!
Missing_Right_Paren :Missing right parenthesis at position <>!
Missing_Right_Bracket :Missing right bracket at position <>!
Escape_Last :Escape character at position <> - at end!
Empty_Brackets :Empty bracketed expression at position <>!