INTERFACECharMap ; PROCEDURE CmpText (t, u: TEXT): [-1 .. +1];
Returns SortOrder[t] - SortOrder[u]
.
PROCEDURE Substr (a, b: TEXT): BOOLEAN;
ReturnsTRUE
ifa
containsb
as a substring when case is ignored.
PROCEDURE PrefixMatch (a, b: TEXT; len: INTEGER): BOOLEAN;
ReturnsTRUE
if the firstlen
characters ofa
andb
are equal when case is ignored.
END CharMap.