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SQ
!!!SQ
NAME
SYNOPSIS
DESCRIPTION
AUTHOR
SEE ALSO
----
!!NAME


sq - squeeze a sorted word list unsq - unsqueeze a sorted word list
!!SYNOPSIS


__sq__ __


__unsq__ __
!!DESCRIPTION


''sq'' compresses a sorted list of words (a dictionary).
For example:


sort /usr/share/dict/words | sq | compress


will compress dict by about a factor of 4.


''unsq'' uncompress the output of ''sq.'' For
example:


compress -d


will uncompress a dictionary compressed with
''sq.''


The squeezing is achieved by eliminating common prefixes,
and replacing them with a single character which encodes the
number of characters shared with the preceding word. The
prefix size is encoded as a single printable character: 0-9
represent 0-9, A-Z represent 10-35, and a-z represent
36-61.
!!AUTHOR


Mike Wexler
!!SEE ALSO


compress(1), sort(1).
----

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Last edited on Monday, June 3, 2002 6:51:17 pm by "perry"

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