GetKeywordID returns the lex id of the SQL keyword k or IDENT if k is not a keyword.

IsDigit returns true if the character is between 0 and 9.

IsHexDigit returns true if the character is a valid hexadecimal digit.

IsIdentMiddle returns true if the character is valid inside an identifier.

IsIdentStart returns true if the character is valid at the start of an identifier.

NormalizeName normalizes to lowercase and Unicode Normalization Form C (NFC).