Fuzzy String Matching
Given two strings and a permissible number of character differences, determine if the strings can be considered approximately equal.
Input: Three arguments: two strings (str) and one integer (int).
Output: Logic value (bool).
Examples:
assert fuzzy_string_match("apple", "appel", 2) == True
assert fuzzy_string_match("apple", "bpple", 1) == True
assert fuzzy_string_match("apple", "bpple", 0) == False
assert fuzzy_string_match("apple", "apples", 1) == True
How it’s used:
- spell-checking algorithms where slight differences can be ignored;
- searching algorithms in databases to find entries that closely match the query;
- DNA sequence matching where certain differences might be allowed.
Precondition:
- 0 <= threshold <= max(len(str1), len(str2)).
