    # File lib/yard/parser/ruby/legacy/ruby_lex.rb, line 387
            def getc
              return nil if @offset >= @size
              ch = @content[@offset, 1]

              @offset += 1
              @hwm = @offset if @hwm < @offset

              if @newline_pending
                @line_num += 1
                @last_newline = @offset - 1
                @newline_pending = false
              end

              if ch == "\n"
                @newline_pending = true
              end
              ch
            end