/Haskell-KMP

Knuth–Morris–Pratt string searching algorithm

Primary LanguageHaskellBSD 3-Clause "New" or "Revised" LicenseBSD-3-Clause

This module implements the Knuth-Morris-Pratt algorithm.
It can search a word in a text in O(m+n) time, where m and n are the length of the word and the text.

This module can apply on any list of instance of Eq.

Donald Knuth; James H. Morris, Jr, Vaughan Pratt (1977).
Fast pattern matching in strings.
SIAM Journal on Computing 6 (2): 323–350. doi:10.1137/0206024

Sample usage:

> let
>   word = "abababcaba"
>   text = "abababababcabababcababbb"
>   kmpTable = build word
>   result = match kmpTable text
>   -- the 'result' should be [4, 11]