print_tabular.gd

func print_tabular(data:Array):
	# 'data' should be: [name:String, values:Array, ...]
	var col_count:int = data.size()/2
	var col_titles := PackedStringArray()
	var col_strings:Array = []
	var col_widths := PackedInt32Array()
	var row_count:int = 0
	for j in col_count:
		var title:String = str(data[2*j])
		var width:int = title.length()
		col_titles.append(title)
		var values:Array = data[2*j+1]
		row_count = max(row_count, values.size())
		var str_values := PackedStringArray()
		for v in values:
			var s:String = str(v)
			width = max(width, s.length())
			str_values.append(s)
		col_strings.append(str_values)
		col_widths.append(width)
	var output := PackedStringArray()
	for j in col_count:
		output.append("%*s"%[col_widths[j], col_titles[j]])
		if j<col_count-1:
			output.append("  ")
		else:
			output.append("\n")
	for i in row_count:
		for j in col_count:
			output.append("%*s"%[col_widths[j], col_strings[j][i]])
			if j<col_count-1:
				output.append("  ")
			else:
				output.append("\n")
	print("".join(output))

Example output: https://i.imgur.com/K88hdB8.png