If pattern match, then this number probably is a phone number in Taiwan.

vvv

This regular expression can be used to find tags and hashtags in a string. It assumes that a username can contain both underscores and points (.) and that hashtags can only contain letters

foo

Given a string that represents a location in the USA, find any version of the USA country name as one would expect at the end of that string. Does not match on if it finds it elsewhere such as a freeway name or the "us" in the city of "Russellville".

This Regular Expression Validates SIP Addresses

Validates SIP(Session Initiation Protocol) Addresses

Parse for the BIGipServerPool set by F5 load balancers

first group matches quoted strings second group plain text, arguments are separated with a space. example: "this is a \"string\"" thisisnot "another \"string\" with a backslash \"\\"" just replace \" with " after matching.

Splits the css code into two blocks. (comments|selector block)

Email clients insert the "sender wrote" line to email replies.

With format dd/MM/yyyy