Re: [prometheus-users] Wildcard in PromQL "5.+" vs "5\\d{2}"

['Jason' via Prometheus Users]

On 03.10.2023 10:55, Stuart Clark wrote:

In reality both will do the same thing, although the second is technically more correct.

The first regular expression is matching "5" followed by 1 or more other characters, while the second is matching "5" followed by exactly 2 numbers. So the first one would also match "50" or "5frogs" which aren't valid status codes, but in reality your application would have to be having serious problems to be setting those values anyway.

Thanks Stuart



How is this regex called?

cheers
Jason

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Is there any docs about this type of regex? I didn't found "\\d" in official docs.

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