POsitive lookbehind javascript.

String that may begin or end with spaces, and contains double-quoted text, separated by a number of spaces

registration plates of France in SIV format

Parse Apache web logs to be stored in python (most likely a tuple for manipulation, parsing, and correlation)

Rather long, but pretty accurate, matches on BS7666 alpha num pattern. https://en.wikipedia.org/wiki/Postal_code#UK

mixed or simple fraction with whitespace, optional dash as separator

Parses the V8 StackFrames

Regex for extracting address with pincode.