Identification of character classes

Public Function CharIsAlpha(s As String) As Boolean

Is the character alphabetic (a..z, A..Z) ?

Public Function CharIsAlphaNumeric(s As String) As Boolean

Is the character alphanumeric (a..z, A..Z, 0-9) ?

Public Function CharIsLower(s As String) As Boolean

Is the character a lowercase alphabetic (a..z) ?

Public Function CharIsNumericInt(s As String) As Boolean

Is the character part of a numeric int (0-9) ?

Public Function CharIsNumericReal(s As String) As Boolean

Is the character part of a numeric real (+ or - or 0-9 or . or E/e) ?

Public Function CharIsUpper(s As String) As Boolean

Is the character an uppercase alphabetic (A..Z) ?

Public Function CharIsWhitespace(s As String) As Boolean

Is the character whitespace (space, return, tab, linefeed) ?

Public Function IsIdentifierChar(s As String) As Boolean

Is the character a valid second or later character of a VBA identifier (a..z, A..Z, 0..9, _) ?

Public Function IsIdentifierFirstChar(s As String) As Boolean

Is the character a valid first character of a VBA identifier (a..z, A..Z) ?