analyze a text file, counting the occurrence of each word

cwords.rb

# using fibers count words number of occurences  in a file
words = Fiber.new do
 File.foreach("samp.txt") do |line|
	line.scan(/\w+/) do |word|
	Fiber.yield word.downcase
	end
 end
	nil
end

counts = Hash.new(0)
while word = words.resume
counts[word] += 1
end
counts.keys.sort.each {|k| puts "#{k}:#{counts[k]} "}

#without using fibers count words occurences in a file

=begin
counts = Hash.new(0)
File.foreach("samp.txt") do |line|
	line.scan(/\w+/) do |word|
		word = word.downcase
		counts[word] += 1
	end
end

counts.keys.sort.each {|k| puts"#{k}:#{counts[k]} "}
=end