A suggestion to avoid possible collisions: if CPU time is not a concern, using several different algorithms to create multiple fingerprints increases the improbability of a collision to astronomically high figures. Even using the same algorithm on the original string and a variant created by some transliteration rules to obtain multiple fingerprints will exponentially decrease the probability of collisions.

Makeshifts last the longest.

In reply to Re^2: finding and deleting repeated lines in a file by Aristotle
in thread finding and deleting repeated lines in a file by Becky

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