'Regex: string match with flexible number matching

I need to use RegEx for matching and was hoping somebody with much more experience than me could help.

The 'Stable tag:' string doesn't change however the following numbers change. I want to match all versions below 3.0 no matter how many decimal points they have.

Stable tag: 4.1.5.3
Stable tag: 11.0.5.3
Stable tag: 23.1.5.3
Stable tag: 13.0.1
Stable tag: 13.0
Stable tag: 2.0.1
Stable tag: 3.0.21.4.2
Stable tag: 3.0
Stable tag: 3.0.111.32
Stable tag: 1.0.1.3

The closest RegEx I have gotten which is somewhat reliable is Stable tag\: [3]\.[0].([1]|[2]|[3]|[4]|[5]|[6]|[7])|[3]\.[0]$ however this only matches versions 3.0.

RegEx101 link here: https://regex101.com/r/ehOL2n/1

Hoping someone can help, thank you!

regex


Solution 1:[1]

First section is \d+ to capture major version. The rest of the version is just . and digits. So we can specify that as (?:\.\d+) and it can be zero or more *.

/Stable tag\: (\d+(?:\.\d+)*)$/

Working example: https://regex101.com/r/fxYE2M/1

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Rizal Ardhi Rahmadani

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