http://www.rexegg.com/regex-humor.html#meaning-of-life

czfb

^ # start-of-string (?=.*[0-9]) # a digit must occur at least once (?=.*[a-z]) # a lower case letter must occur at least once (?=.*[A-Z]) # an upper case letter must occur at least once (?=.*[@#$%^&+=]) # a special character must occur at least once (?=\S+$) ...

find a string (placeholder) inside a string

Regex supporting all formats of ISO 8601 dates (with timezone and microseconds) that are compatible with PHP DateTime constructor and strtotime.

When encountering more than 1 pmid, make sure to return the first one

To get video id from different formats

At least one lower case, upper case and digit, at least 10 chars

A basic validator for BR phone numbers

A basic and rude email validation

cut/paste into fluentd/td-agent config

Matching comma separated fields with pattern

test

select all special chars inside a world/sentence

TFS Forbidden Pattern web.config file Check-In Policy