Alphanumeric Range Expansion - Skip and Group #11363

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adam · 2025-12-29T21:44:12+01:00

adam commented

2025-12-29 21:44:12 +01:00

Originally created by @kcaoneill on GitHub (Jul 9, 2025).

NetBox version

v4.3.3

Feature type

Change to existing functionality

Proposed functionality

I propose adding skip and group functions to alphanumeric expansion.

My proposed syntax is a range suffix as such: [range:skip:group,...] with skip and group both being optional, with a single suffix being skip only.

Examples:
1 - 48 odd [1-48:1] yielding 1,3,5,...,47
2 - 48 even [2-48:1] yielding 2,4,6,...,48
1 - 48 in groups of 2, skipping 2, [1-48:2:2] yielding 1,2,4,5,8,9...45,46

Use case

This would greatly reduce the effort for some spatial port configurations, such as application traffic on odds and storage traffic on evens, or for creating power outlets on PDUs where phasing is A A B B C C A A ... without manually creating each outlet.

I implemented this locally a few versions ago, and I can probably port it forward or reimplement if a pull request is desired.

Database changes

n/a

External dependencies

n/a

Originally created by @kcaoneill on GitHub (Jul 9, 2025). ### NetBox version v4.3.3 ### Feature type Change to existing functionality ### Proposed functionality I propose adding skip and group functions to alphanumeric expansion. My proposed syntax is a range suffix as such: [range:skip:group,...] with skip and group both being optional, with a single suffix being skip only. Examples: 1 - 48 odd [1-48:1] yielding 1,3,5,...,47 2 - 48 even [2-48:1] yielding 2,4,6,...,48 1 - 48 in groups of 2, skipping 2, [1-48:2:2] yielding 1,2,4,5,8,9...45,46 ### Use case This would greatly reduce the effort for some spatial port configurations, such as application traffic on odds and storage traffic on evens, or for creating power outlets on PDUs where phasing is A A B B C C A A ... without manually creating each outlet. I implemented this locally a few versions ago, and I can probably port it forward or reimplement if a pull request is desired. ### Database changes n/a ### External dependencies n/a

adam added the type: feature label 2025-12-29 21:44:12 +01:00

adam closed this issue

2025-12-29 21:44:12 +01:00

adam commented

2025-12-29 21:44:13 +01:00

@jeremystretch commented on GitHub (Jul 10, 2025):

I'm sorry but this is a bridge too far for this specific piece of functionality. Anything that requires logic beyond basic ranges and lists will need to be achieved via alternate means (i.e. bulk import). Otherwise this will quickly end up becoming a burden to maintain and test.

@jeremystretch commented on GitHub (Jul 10, 2025): I'm sorry but this is a bridge too far for this specific piece of functionality. Anything that requires logic beyond basic ranges and lists will need to be achieved via alternate means (i.e. bulk import). Otherwise this will quickly end up becoming a burden to maintain and test.

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Reference: starred/netbox#11363