Regex help. This is working on <regex101.com> (here's the link:<https://regex101.com/r/Rt773n/1>) bu...

Dave Smith

09/08/2025, 4:41 PM

Regex help. This is working on regex101.com (here's the link:https://regex101.com/r/Rt773n/1) but it appears that signoz doesn't like it. How can I find out why?

✅ 1

Dave Smith

09/08/2025, 4:42 PM

I got the regex from signoz AI chat bot 🙂 It appears to be correct in the regex101 test environment

Dave Smith

09/08/2025, 4:42 PM

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(?i).*(chrome|firefox|safari(?!.*chrome)|edge|opera|internet explorer|msie)

Vibhu Pandey

09/08/2025, 4:45 PM

Please try using python style named capture groups

(?P<TYPE>\[(.*?)\])

instead of

(?<TYPE>\[(.*?)\])

- Note the use of ?P instead of just ?

Dave Smith

09/08/2025, 4:47 PM

I haven't used those before. Is this converted correctly?

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(?i).*(?P<string>chrome|firefox|safari(?!.*chrome)|edge|opera|internet explorer|msie)

It works in regex101, with python flavor selected

Vibhu Pandey

09/08/2025, 4:51 PM

Does it work while simulation in signoz?

Dave Smith

09/08/2025, 4:58 PM

I don't know what the simulation area is. I have got it to work, by adding a name to the negative lookahead group too:

Copy code

(?i).*(?P<browser>chrome|firefox|safari(?P<s>!.*chrome)|edge|opera|internet explorer|msie)

Dave Smith

09/08/2025, 4:58 PM

Thank you for helping me out!

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