Version 1.1.0

Added asynchronous searching in both [String] and [Fusable].

Results:

Tests based on searching over 1,303 book titles.

Using func search(_ text: String, in aList: [String]) -> [Fuse.SearchResult]:

Average: 0.437
Relative standard deviation: 1.931%
Values: [0.459132, 0.427943, 0.432988, 0.443308, 0.437132, 0.432230, 0.434008, 0.435256, 0.436999, 0.429986]

Using func search(_ text: String, in aList: [String], completion: @escaping ([Fuse.SearchResult]) -> Void):

Average: 0.161
Relative standard deviation: 2.073%
Values: [0.155997, 0.157061, 0.161730, 0.158362, 0.161959, 0.167433, 0.162196, 0.165532, 0.161298, 0.161767]

Improvement of ~ 65%

Version 1.0.0

Changed ranges of matched characters to be represented by CountableClosedRange (#2). Thank you @gravicle