Regular Expressions 101

This regex will help you to parse html tag. Example Title ...

Other patterns

Match any syllable based on javanese script unicode

Validate a given IP v4 address against all three defined Private IPv4 Subnets as statet in RFC1918 10.0.0.0/8 172.16.0.0/20 192.168.0.0/16 ...

Detects any Grabify IP tracker links

Detects any UUID 4 strings

Extract parts of a URL on Python

Adds += to Lua.

Select duplicate a.m. - p.m range

Intentionally leaves out weird stuff such as IPV4 or IPV6 for the domain part and quoted usernames with invalid chars in the addressee part. Handles internationalized domains with soft validation (only structural matching) and blocks domain parts starting or ending with dashes or containing double d...

Find PHP object variables, and replace them with (array)brackets.

1 Uppercase 1 lower case 1 number 1 not a number or letter

It's too large to match with all which seems like an IPv6. It's not perfect, but it's detects more valid IPv6 than some others regex.

We had an issue where the "hosts=some_var" value could cause mass deployments if the wrong value was passed through. Specifically a comma with nothing surrounding it (i.e. "hosts=,"). This regex will allow us to fail when certain characters are present.

The best way to parse URL via Regex. This can be used in javascript, PHP, etc.