Scrabble problem

From	"WJ" <w_a_x_man@yahoo.com>
Newsgroups	comp.lang.ruby
Subject	Scrabble problem
Date	2015-12-06 16:06 +0000
Organization	A noiseless patient Spider
Message-ID	<n41mde$tui$1@dont-email.me> (permalink)

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def good_word? word, sorted_rack
  word.split("").group_by{|x| x}.map{|k,v| v.join}.
  all?{|s| sorted_rack.index s}
end

def find_in_file filename, rack
  sorted_rack = rack.split("").sort.join
  IO.readlines(filename).map(&:strip).
  select{|word| good_word? word, sorted_rack}
end


find_in_file "words", "qwerty"
    ==>["e", "er", "et", "q", "r", "re", "rye", "t", "te", "ter", "tr", "trey",
"try", "tw", "tyr", "tyre", "we", "wet", "wry", "y", "ye", "yet", "yew"]

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Scrabble problem "WJ" <w_a_x_man@yahoo.com> - 2015-12-06 16:06 +0000

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