Boyer-Moore-Horspool

(algorithm)

Definition: A string matching algorithm that compares characters from the end of the pattern to its beginning. When characters don't match, searching jumps to the next matching position in the pattern.

Also known as Horspool.

See also Boyer-Moore.

Author: PEB

Implementation

Christian Charras' and Thierry Lecroq's Horspool algorithm (C). Gonnet and Baeza-Yates' (C) or (Pascal)

More information

R. Nigel Horspool, Practical Fast Searching in Strings, Software - Practice and Experience, 10:501-506, 1980.

Go to the Dictionary of Algorithms and Data Structures home page.

If you have suggestions, corrections, or comments, please get in touch with Paul E. Black.

Entry modified Mon Dec 13 16:17:22 2004.
HTML page formatted Wed Oct 26 09:47:16 2005.

Cite this as:
Paul E. Black, "Boyer-Moore-Horspool", from Dictionary of Algorithms and Data Structures, Paul E. Black, ed., NIST.
http://www.nist.gov/dads/HTML/boyerMooreHorspool.html