split-delimiters.rb

def split(str, delimiters)
  delimiters = delimiters.split(//)
  result, acc = [], ""

  str.split(//).each do |c|
    if delimiters.include?(c)
      # add the acculumator and the delimiter to our growing output array
      unless acc.empty?
        result << acc
        acc = "" # reset accumulator
      end
      result << c
    else
      # append our character to our accumulator
      acc << c
    end
  end
  # finally add any left over string to the end
  result << acc unless acc.empty?
  result
end


 puts split("josh-becky%colleen*nella&emmet","%-*&").inspect
 # ["josh", "-", "becky", "%", "colleen", "*", "nella", "&", "emmet"]
 puts split("josh-becky%colleen*nella&emmet","%").inspect
# ["josh-becky", "%", "colleen*nella&emmet"]