If you consider strings as list of characters you can abstract levenshtein to work on any two lists. For example i use this with list of types to provide a hoog

If you consider strings as list of characters you can abstract levenshtein to work on any two lists. For example i use this with list of types to provide a hoogle-like search for some programming languages stdlib. Ironically i don't know what hoogle actually uses but i think they atleast considered such an approach.