You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: time_pattern.rb
    path of file: ./repos/nii/nii-core/lib/nii/parser
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Nii::Parser
  module TimePattern
    extend self

    PL
    
    def parse_token(input)
      return input.matched            if input.scan(/[^a-zA-Z']+/)
      return input.matched.to_sym     if input.scan(PLACEHOLDER)
      return input[1].gsub("''", "'") if input.scan(/'((?:[^']|'')+)'/)
      return "'"                      if input.scan(/''/)
      input.getch
    end