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researchv10 Dan Cross

#
#          W O R D   C O U N T I N G
#

#  This program tabulates the words in standard input and writes the
#  results with the words in a column 20 characters wide.  The definition
#  of a "word" is naive.

procedure main()
   wordcount(20)
end

procedure wordcount(n)
   local t, line, x, i
   static letters
   initial letters := &lcase ++ &ucase
   t := table(0)
   while line := read() do
      line ? while tab(upto(letters)) do
         t[tab(many(letters))] +:= 1
   x := sort(t,3)
   every i := 1 to *x - 1 by 2 do
      write(left(x[i],n),x[i + 1])
end

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