similar_text Calculate the similarity between two strings &reftitle.description; intsimilar_text stringfirst stringsecond floatpercent This calculates the similarity between two strings as described in &book.programming.classics;. Note that this implementation does not use a stack as in Oliver's pseudo code, but recursive calls which may or may not speed up the whole process. Note also that the complexity of this algorithm is O(N**3) where N is the length of the longest string. &reftitle.parameters; first The first string. second The second string. percent By passing a reference as third argument, similar_text will calculate the similarity in percent for you. &reftitle.returnvalues; Returns the number of matching chars in both strings. &reftitle.seealso; levenshtein soundex