# Set the parser `index` at `new_index`
	#
	# Also set `column` and `column_is_in_tab`.
	private fun set_new_index(new_index: Int) do
		if new_index >= next_non_space_index then
			# We can start from here, no need to calculate tab stops again
			index = next_non_space_index
			column = next_non_space_column
		end
		while index < new_index and index != line_string.length do
			advance
		end
		# If we're going to an index as opposed to a column, we're never within a tab
		column_is_in_tab = false
	end