Availability:built-in
dwim_match(+Atom1,
+Atom2, -Difference)Equivalent to dwim_match/2,
but unifies Difference with an atom identifying the
difference between Atom1 and Atom2. The return
values are (in the same order as above): equal,
mismatched_char, inserted_char, transposed_char,
separated and transposed_word.