searches for either Copyright or copyright symbol, or the programmer's short hand of (c) (which is NOT legal, use the symbol!).

This regexp matches urls, but causes catastrophic backtrack

Parses some chemical formula

Parse the date from an Apache Error Log in the format of "Wed Jun 01 20:05:21.12345 2016"

exclude match if a word is in the url

Amplify XDA Guide

I verify if a string contains from 8 to 10 char and at least one of the following: Upper case char, lower case char, number, special character

Formato del Rol Único Nacional en Chile

Match with courses like: AB123, AB 123, ABC123 or ABC 123