Semantics for String and String Extensions Word Sets
COMPARE ( c-addr1 u1 c-addr2 u2 -- n )
Compare string specified by c-addr1 u1 with string specified by c-addr2 u2. If the strings are equal then return zero. If the string specified by c-addr1 u1 is less than the string specified by c-addr2 u2 then return -1. If the string specified by c-addr1 u1 is greater than the string specified by c-addr2 u2 then return 1.