How to capture the column of table?

[owenstake]

I want to hint all the columns at the table with regex, but it seems so complicated. Any ideas?

$ openstack server list
+--------------------------------------+-----------------------------+---------+-------------------------+-----------------------------+------------+
| ID                                   | Name                        | Status  | Networks                | Image                       | Flavor     |
+--------------------------------------+-----------------------------+---------+-------------------------+-----------------------------+------------+
| 8de97c6f-bd4e-4f23-b8ee-1d9841082760 | test_7                      | ACTIVE  | Internal=192.168.0.10   | test_6_snapshot_cli         | hc1.small  |
| 120fc769-ec99-4025-b456-320d8a17a158 | test_6                      | ACTIVE  | Internal=192.168.0.173  | test_5_snap_cli             | hc1.small  |
| e93b3344-6d78-4273-880f-220b7fbec417 | test_5                      | ACTIVE  | Internal=192.168.0.186  | CentOS 8 (ce8-x86_64)       | hc1.small  |
+--------------------------------------+-----------------------------+---------+-------------------------+-----------------------------+------------+