0
[[col]]
[[col]]
[[col]]
foo
[[colgroup]]
[[colgroup]]
[[colgroup]][[col]]
[[colgroup]][[col]]
[[colgroup]][[col]]
1
1
2
2
[[col]]
[[col]]
[[col]]
12
12
12
[[col]]
[[col]]
[[col]]
1
1
1
2
2
2
[[index]]