* Table to ensure that uniVerse sees characters in the range 25, 26 and 28 - 31
* as the internal mark characters, rather than as external 
* characters in that range (i.e. C0 control characters 19, 1A, 1C - 1F).
* Also add SQL NULL as a special kind of mark:
19	@SQL.NULL
1A	@TM
1C	@SM
1D	@VM
1E	@FM
1F	@IM