This regex is for validating Roumanian CNP ^[1-9]\d{2}(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])(0[1-9]|[1-4]\d|5[0-2]|99)(00[1-9]|0[1-9]\d|[1-9]\d\d)\d$

Forked from https://regex101.com/r/vL1pD2/1

Match a number range

Checks for strings that could possibly be a tag with malicious content

I don't know how many times I found some regex online that just didn't work. Finally decided to write my own that actually works for some of our customers around the world.