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Up to [CSRG BSD Unix] / 43BSD / contrib / icon / book / 08

BSD 4.3

procedure words(k)
   local wchar, wordlist, line, i, j
   wchar := &lcase ++ &ucase ++ '\'-'
   wordlist := []
   while line := read() do {
      i := 1
      while j := upto(wchar,line,i) do {
         i := many(wchar,line,j)
         put(wordlist,line[i:j])
         if *wordlist = k then break break
         }
      }
   return wordlist
end

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