RubyFish

RubyFish is a ruby port of python library <a href = "http://github.com/sunlightlabs/jellyfish">jellyfish</a> 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 <a href="mailto:mstephens@sunlightfoundation.com">Michael Stephens</a> and <a href="mailto:jturk@sunlightfoundation.com">James Turk</a>.

Ported by <a href="mailto:yury.korolev@gmail.com">Yury Korolev</a> Source is available on <a href="http://github.com/anjlab/rubyfish">GitHub</a>

Included Algorithms

String comparison:

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

Phonetic encoding:

• Double Metaphone

Example Usage

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]