remove

Return `zloc` with current node removed. Returned zipper location is moved to the first non-whitespace node preceding removed node in a depth-first walk. Removes whitespace appropriately. - `[1 |2 3] => [|1 3]` - `[1 |2] => [|1]` - `[|1 2] => |[2]` - `[|1] => |[]` - `[ |1 ] => |[]` - `[1 [2 3] |4] => [1 [2 |3]]` - `[|1 [2 3] 4] => |[[2 3] 4]` If the removed node is a rightmost sibling, both leading and trailing whitespace is removed, otherwise only trailing whitespace is removed. The result is that a following element (no matter whether it is on the same line or not) will end up at same positon (line/column) as the removed one. If a comment lies betwen the original node and the neighbour this will not hold true. If the removed node is at end of input and is trailed by 1 or more newlines, a single trailing newline will be preserved. Use [[remove*]] to remove node without removing any surrounding whitespace.