[FIXED] Matching a single numeric digit after the second period of a string

Issue

I have a series of data that I would like to extract a single digit from. I will be using python to execute the regex. This previous post looked promising, but I couldn't get anything working as of yet. More specifically I would like the first numeric digit after the second "." of each string.

This is my attempted regex: [^.][^.]?([0-9])

The below example includes test data with the targeted number in bold. I plan to use this to iterate through a table, so it only needs to work for each individual string, not all of them at once.

Example data:

AR0.RRPG.105

AR6.TR0.500

AR0.GGF0.2FEH

AR0.DER.M15

Solution

^[^\.]*\.[^\.]*\.[^\.]*?([0-9])

• First as many non-dot characters as possible up to the first dot
• Same up to the second dot
• Finally as few non-dot characters as possible, up to the first digit, which is captured

Answered By - LMD