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- SSSSQQQQ((((1111)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((LLLLOOOOCCCCAAAALLLL)))) SSSSQQQQ((((1111))))
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- NNNNAAAAMMMMEEEE
- sq - squeeze a sorted word list unsq - unsqueeze a sorted
- word list
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ssssqqqq < infile > outfile
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- uuuunnnnssssqqqq < infile > outfile
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _s_q compresses a sorted list of words (a dictionary). For
- example:
- sort /usr/dict/words | sq | compress > words.sq.Z
- will compress dict by about a factor of 4.
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- _u_n_s_q uncompress the output of _s_q. For example:
- compress -d < words.sq.Z | unsq | sort -f -o words
- will uncompress a dictionary compressed with _s_q.
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- 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.
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- AAAAUUUUTTTTHHHHOOOORRRR
- Mike Wexler
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- compress(1), sort(1).
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- Page 1 (printed 6/30/95)
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