Accepts spaces or not 1234567890 123 456 7890

Match 5 forward slashes

csv parsing with content quota string

Takes a JSON string and captures interesting information in the named capturing groups: (o: last object, a: last array, s: last string, n: last number, c: last comma before optional whitespace, d: same as c, but with a colon instead of a comma, v: last value)

Get Gmail tag, user and domain of an email address

This allows to the programer to match the time format groups, in a way that allow to discard some parts of the format. E.g. I have a format HhMmSs and i want to ignore the 'Ss' part from the format when I have no Seconds

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

This breaks down an Apache2 access log into 9 parts. I use this for analyzing content in my webserver logs.

A pattern to match the email domain suffix

IP address with Subnet