Types and Values
Lists define arbitrary sequences of CUE values. A list can be closed or open ended. Open-ended lists may have some predefined elements, but may have additional, possibly typed elements.
In the example we define IP to be a list of 4 elements of type uint8, which is a predeclared value of 0..255. PrivateIP defines the IP ranges defined for private use. Note that as it is already defined to be an IP, the length of the list is already fixed at 4 and we do not have to specify a value for all elements. Also note that instead of writing ...uint8, we could have written ... as the type constraint is already already implied by IP.
The output contains a valid private IP address (myIP) and an invalid one (yourIP).
IP: 4 * [ uint8 ] PrivateIP: IP PrivateIP: [10, ...uint8] | [192, 168, ...] | [172, 16..32, ...] myIP: PrivateIP myIP: [10, 2, 3, 4] yourIP: PrivateIP yourIP: [11, 1, 2, 3]
IP: [0..255, 0..255, 0..255, 0..255]
PrivateIP:
[10, 0..255, 0..255, 0..255] |
[192, 168, 0..255, 0..255] |
[172, 16..32, 0..255, 0..255]
myIP: [10, 2, 3, 4]
yourIP: _|_