v input view row row position count row count
Delete takes an input view and returns one with count rows starting at row omitted. The views v and {w} must have the same structure.
Examples:set v [view {A B} def {a b aa bb aaa bbb}]
view $v delete 1 1
view $v delete 1 2
A B 0 a b 1 aaa bbb
A B 0 a b