Shifts first word off of self and returns; changes self : String class Extension « String « Ruby






  1. Ruby
  2. String
  3. String class Extension

Shifts first word off of self and returns; changes self



class String 
  @@first_word_re = /^(\w+\W*)/

  def shift_word
    return nil if self.empty?
    self=~@@first_word_re
    newself= $' || ""       # $' is POSTMATCH
    self.replace(newself) unless $'.nil?
    $1
  end

end 


a = "this is a test"

puts a.shift_word








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