I have the following test strings:
Battery Bank 1
Dummy 32 Segment 12
System
Modbus 192.168.0.1 Group
I need a regex that can match and group these as follows:
Group 1: Battery Bank
Group 2: 1
Group 1: Dummy 32 Segment
Group 2: 12
Group 1: System
Group 2: null
Group 1: Modbus 192.168.0.1 Group
Group 2: null
Basically, capture everything (including numbers) into group 1 unless the string ends with a whitespace followed by 1 or more digits. If it does, capture this number into group 2.
This regex is not doing what I need as everything is captured into the first group.
([\w ]+)( \d+)?
Basically, capture everything (including numbers) into group 1 unless the string ends with a whitespace followed by 1 or more digits. If it does, capture this number into group 2.
You may use this group that allows an empty match in 2nd capture group:
^(.+?) *(\d+|)$
RegEx Details:
^: Start(.+?): Match 1+ of any character (lazy) in capture group #1 *: Match 0 or more spaces(\d+|): Match 1+ digits or nothing in 2nd capture group$: End