This regex checks if atleat a character and a number is there regardless of any special characters in the list

Find a 4 digit number

Determines whether a filename is a WMO group file or not.

test match gdrive link

catch URIs

Email Regular Expression from YASIN1364 Simple and easy for Use.

This regex keeps multiple attributes of given HTML tag. Given that required attributes are consective (in any order) and following the tag name.

cheking full name e.g. Mathias d'Arras Martin Luther King, Jr. Hector Sausage-Hausen

2001-9999

just a a simple match for a mac address