get_tk

# File lib/rdoc/parser/ruby_tools.rb, line 20
  def get_tk
    tk = nil

    if @tokens.empty? then
      tk = @scanner.token
      @read.push @scanner.get_readed
      puts "get_tk1 => #{tk.inspect}" if $TOKEN_DEBUG
    else
      @read.push @unget_read.shift
      tk = @tokens.shift
      puts "get_tk2 => #{tk.inspect}" if $TOKEN_DEBUG
    end

    tk = nil if TkEND_OF_SCRIPT === tk

    if TkSYMBEG === tk then
      set_token_position tk.line_no, tk.char_no

      case tk1 = get_tk
      when TkId, TkOp, TkSTRING, TkDSTRING, TkSTAR, TkAMPER then
        if tk1.respond_to?(:name) then
          tk = Token(TkSYMBOL).set_text(":" + tk1.name)
        else
          tk = Token(TkSYMBOL).set_text(":" + tk1.text)
        end

        # remove the identifier we just read (we're about to replace it with a
        # symbol)
        @token_listeners.each do |obj|
          obj.pop_token
        end if @token_listeners
      else
        warn("':' not followed by identifier or operator")
        tk = tk1
      end
    end

    # inform any listeners of our shiny new token
    @token_listeners.each do |obj|
      obj.add_token(tk)
    end if @token_listeners

    tk
  end