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Time Zone UTC Offsets in actual use for ISO 8601 / RFC 3339 Date Times (Museum of Bad Data) https://regex101.com/library/F21Glr Matches only (and every) UTC offset that is in actual use and valid under ISO 8601 and RFC 3339 (Y'know, the '2008-08-08T08:08:08+05:00' looking one, this is the plus/min...

This will match all four-digit years that are leap years, using the "either (multiple of four but not a multiple of 100) OR (multiple of 400)" rule. Explained / ^(...

Get NICs from string

Handles many nuanced cases around time zone offsets, leap seconds and leap days. References: List of UTC Offsets RFC 3339, the stricter rules that most systems use in practice ISO 8601, the widely known name for this format...

why did I make this?

This could be used to group eslint stuff in renovate config for a next.js project. Since you're intended to keep eslint-plugin-next at the same version as next itself, you would want to group it with next instead. Using negative lookahead we can ignore eslint-config-next (or anything else you may wi...

Prometheus exposition metric line format. Parses metric lines with named capture groups for metric name, labels, value, and timestamp. Excludes comment, type, and help lines. https://prometheus.io/docs/instrumenting/exposition_formats/#line-format

It just cleans up urls.

This converts the values in this) table to C# code. Example: pulic enum Iso4217 { /* output here */...

Find dates of multiple formats in a clean way Searchable Formats: -Month day year -Month day, year -Mon day year...

Password requirements: Contains at least one uppercase letter. Contains at least one lowercase letter. Contains at least one digit. Does not contain any whitespace characters. Has a minimum length of 8 characters.

finds any 3 letter words in a text

Match ESET PROTECT Cloud domains for exclusion from DNS logs

Match ESET INSPECT Cloud domains for exclusion from HTTP logs

Match ESET DNS Load Balancer domains for exclusion from DNS logs

This would appear to violate the premise of this famous StackOverflow answer, however this is not parsing as such, only matching or heuristic identification. Technically, all text is HTML if served to a browser in such a way that the browser chooses to interpret it that way, e.g. using a text/html ...

work@ing.yes

Check simple codes between 1 and 5 numbers: 281, 81992, 18, 829a7, 8299192

This regex will validate pretty much every mail that could exist. It allows aliases and tags in the mail, therefore the mail can contain one or more dots and/or "+" signs (Exemple: exemple.test.alias+tag+tag2). It also allows Internationalized Domain Names (IDNs) (Exemple: @café.com), subdomains (Ex...