Match a Google Analytics Campaign query string

Detect if an url is local (even if written in an absolute way)

Test for all ISO 8601 date formats and only accept valid dates, e.g. 2016-02-29, but not 2016-02-30 or 2017-02-29.

Ability to capture emails sent and received from Exchange (using Journaling that has been activated on specific users) that have one or more of the following Project Number prefixes: “15-“ “16-“ “17-”... “30-“ “GGO”...

1100582367|SDFDSFDSFDSFDSFDF GBC213WREW|RWEFSDFSDF 1100582377|DSFDSFDSFDSF 2NDG.S.D BIKADSFDSFDSFNO.421 1100582387|SDFSDFSDFDSF

find emails(emicha@mail.bg)

Look(ahead|behind)s are slow

Match any value between two less than and two greater than symbols.

Extract movie ID from URLs like YouTube and Vimeo

For scraping http://skepticsannotatedbible.com/

When you copy a skype conversation and paste it in a text area then it includes timestamps, User's name and whether or not the message had been edited. This matches all of those in seperate groups for easy substitution

12.04.1975T03:02:00.88 With milliseconds and T seperator. Excludes most invalid dates, except 30/31ths of month, leap years/february heaving only 29/28.