RubyFish

RubyFish is a ruby port of python library jellyfish for doing approximate and phonetic matching of strings.

RubyFish is a project of AnjLab (c) 2010. All code is released under a BSD-style license, see LICENSE for details.

Originally written by Michael Stephens and James Turk.

Ported by Yury Korolev Source is available on GitHub

String comparison:

• Levenshtein Distance
• Damerau-Levenshtein Distance
• Jaro Distance
• Jaro-Winkler Distance
• Hamming Distance
• Longest Substring
• Longest Subsequence

Phonetic encoding:

• Double Metaphone

ruby-1.9.2-p0 > require 'rubyfish'
ruby-1.9.2-p0 > RubyFish::Levenshtein.distance("jellyfish", "rubyfish")
=> 4
ruby-1.9.2-p0 > RubyFish::Jaro.distance("jellyfish", "rubyfish")
=> 0.7268518518518519
ruby-1.9.2-p0 > RubyFish::DamerauLevenshtein.distance("rubyfish", "rubyfihs")
=> 1

ruby-1.9.2-p0 > RubyFish::DoubleMetaphone.phonetic_code "prived"
 => ["PRFT", nil] 
ruby-1.9.2-p0 > RubyFish::DoubleMetaphone.phonetic_code "privet"
 => ["PRFT", nil]