INVRPT:D:97A

Not accurate

Fax number Regx for all countries

To find hashtags. It also allows underscores (_), not sure if that is officially correct.

Turns Gyazo page links into PNG links (useful for auto-previews, embedding etc.)

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

Extract the domain out of an url