accept empty spaces at start and end

Validate that the social security number follows all of the guidelines of the Social Security Administration, and excludes all voided numbers.

stackoverflow question

5 digits and no 0 5/4 times

Date Validation with leap year handling, & it takes care of date validation in the format like :mm/dd/yyyy or mmddyyyy or mm-dd-yyyy or m/d/yyyy or m-d-yyyy. 12/01/1986 02/29/2016 02/29/2015 13/31/1986...

This regex can be used to find all of the packages (.mum) files in the WINDIR%\servicing\Packages directory. I used it to remove the update packages from Winodws 7 pkgmgr /up:"filename" /norestart /quiet

Will return all matches of text between pipe placeholders, e.g. "This text has |two| placeholders |inside| of it" will return matches for two and inside.

Flexible regex to detect full or partial UK postcodes.

Everything, including proto, user:pass, host, query params and anchors

Will return domain portion of a url: Example: http://www.jkrowlings.com/books Returns: www.jkrowlings.com

Allows phone numbers with optional country code, optional special characters and whitespace

Check version of internet explorer - if is it usable for html5 support etc.

Includes resource strings, taken from here: https://gist.github.com/dperini/729294

Log Format - combined + cookie at the end. Pattern Desc - combined for all groups.