ipv6_compare
Compare two IPv6 or IPv4 addresses, returning -1, 0 or 1, after cutting both to the smallest of their own /masks and the optional prefix (0-128).
IPv4 addresses compare as their IPv4-mapped form, and a /mask on an IPv4 address counts IPv4 bits. An invalid address or prefix, or a null prefix, gives null.
Syntax
ipv6_compare(ip1, ip2)Parameters
Prop
Type
Given a dynamic field
This parameter is string-only. In permissive mode — the default — almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. Strict mode rejects the dynamic instead of coercing it. See String coercion and the asXXX family.
Returns: long
Syntax
ipv6_compare(ip1, ip2, prefix)Parameters
Prop
Type
Given a dynamic field
This parameter is string-only. In permissive mode — the default — almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. Strict mode rejects the dynamic instead of coercing it. See String coercion and the asXXX family.
Returns: long
Syntax
ipv6_compare(ip1, ip2, prefix)Parameters
Prop
Type
Given a dynamic field
This parameter is string-only. In permissive mode — the default — almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. Strict mode rejects the dynamic instead of coercing it. See String coercion and the asXXX family.
Returns: long
Examples
Example 1
print ipv6_compare('fe80::85d:e82c:9446:7994', 'fe80::85d:e82c:9446:7995', 127)| print_0 (long) |
|---|
| 0 |