parse_column_end

# File lib/csv/parser.rb, line 992
    def parse_column_end
      return true if @scanner.scan(@column_end)
      return false unless @column_ends

      @scanner.keep_start
      if @column_ends.all? {|column_end| @scanner.scan(column_end)}
        @scanner.keep_drop
        true
      else
        @scanner.keep_back
        false
      end
    end