Pops and returns last word off self; changes self : String class Extension « String « Ruby

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Ruby » String » String class Extension   Pops and returns last word off self; changes self class String   @@last_word_re = /(\w+\W*)$/   def pop_word     return nil if self.empty?     self=~@@last_word_re     newself= $' || ""       # $' is PREMATCH     self.replace(newself) unless $'.nil?     $1   end end a = "this is a test" puts a.pop_word "another"   Related examples in the same category 1.  write an extension to the String class to provide it 2.  Add method to system type 3.  Processing a String One Word at a Time by adding a method to string class 4.  Replacing Multiple Patterns in a Single Pass 5.  Writing an Inherited Class 6.  Override the method from String Class 7.  Regular expression based comparison 8.  String translation 9.  convert string to binary number 10.  Removes first character from self and returns it, changing self 11.  Adds last character of provided string to front of self 12.  Pops last character off self and returns it, changing self 13.  Pushes first character of provided string onto end of self 14.  Rotate left 15.  Rotate right 16.  Shifts first word off of self and returns; changes self 17.  Adds provided string to front of self 18.  Pushes provided string onto end of self 19.  Get acronym

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