BSD-3-Clause licensed by Max Bolingbroke
Maintained by Oleg Grenrus
This version can be pinned in stack with:edit-distance-,2351

Module documentation for

Used by 3 packages in nightly-2024-04-22(full list with versions):

Edit Distance Algorithms

Build Status Hackage


To just install the library:

cabal configure
cabal build
cabal install


Edit distances algorithms for fuzzy matching. Specifically, this library provides:

They have been fairly heavily optimized. Indeed, for situations where one of the strings is under 64 characters long we use a rather neat “bit vector” algorithm: see the authors paper and the associated errata for more information. The algorithms could be faster, but they aren’t yet slow enough to force us into improving the situation.


Text.EditDistance> levenshteinDistance defaultEditCosts "witch" "kitsch"