Author: Weilin Zhong, Achim Contributor(s): Delink, Christopher Hendrix, Wichers, Jmanico, Thomas Herzog, Duccio Fabbri, EPaul, kingthorin Note: These Regexs are examples and not built for a particular Regex engine. However, the PCRE syntax is mainly used. In particular, this means that character classes do not contain meta characters which need to be escaped, except the - and ] character, where i