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Amiga Plus 1995 #5 & #6
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Amiga Plus CD - 1995 - No. 5 and 6.iso
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sq1.txt
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1995-06-29
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SQ(1) SQ(1)
NNAAMMEE
sq - squeeze a sorted word list unsq - unsqueeze a sorted
word list
SSYYNNOOPPSSIISS
ssqq < infile > outfile
uunnssqq < infile > outfile
DDEESSCCRRIIPPTTIIOONN
_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.
_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_.
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 charac-
ter: 0-9 represent 0-9, A-Z represent 10-35, and a-z rep-
resent 36-61.
AAUUTTHHOORR
Mike Wexler
SSEEEE AALLSSOO
compress(1), sort(1).
LOCAL 1