Trailing white-space are added after comments in the middle of a table

[Malian]

Formatting the following code

samples do
      :fuel_type | :co2 | :year | :percentage
      # 2020
      :diesel    |  105 |  2020 |       0.069
end

Will result in:

samples do
      :fuel_type | :co2 | :year | :percentage
      # 2020----
      :diesel    |  105 |  2020 |       0.069
end

WIth 4 whitespaces after # 2020. I represented them with -

Here is a test that reproduces the bug:

  test "handle comments" do
    code = """
    samples do
      :fuel_type | :co2 | :year | :percentage
      # 2020
      :diesel | 105 | 2020 | 0.069
      :petrol | 110 | 2020 | 0.054
    end
    """

    assert Samples.FormatterPlugin.format(code, []) == """
           samples do
             :fuel_type | :co2 | :year | :percentage
             # 2020
             :diesel    |  105 |  2020 |       0.069
             :petrol    |  110 |  2020 |       0.054
           end
           """
  end

This is due to the offset we add to the first column

exsamples/lib/formatter_plugin.ex

Lines 122 to 124 in 3722216

	{col_index, value} ->
	offset = if col_index == 0, do: String.duplicate(" ", column_offset), else: ""
	offset <> align_value(value, cols_info[col_index], false)

A solution could be to pattern match on # in the walk function.