I need a sort of an ``approximate'' strcmp routine, for comparing two
strings for close, but not necessarily exact, equality.
Some nice information and algorithms having to do with approximate string matching,
as well as a useful bibliography, can be found in Sun Wu and Udi Manber's paper
``AGREP--A Fast Approximate Pattern-Matching Tool.''
Another approach involves the ``soundex'' algorithm, which maps similar-sounding
words to the same codes. Soundex was designed for discovering similar-sounding names
(for telephone directory assistance, as it happens), but it can be pressed into
service for processing arbitrary words.