Detects UK postcodes (minimal edge cases)

Extract the numerical ID of a VK Commmunity fromit's wall url.

Matches CDATA sections while disallowing nesting

/(^((\d{4}-(((0[13578]|1)-(0[1-9]|[1-2]\d|3[01]))))|((\d{4}-(((0[469]|1)-(0[1-9]|[1-2]\d|3)))))|((\d{4}-(0[2]-(0[1-9]|[1-2]\d)))))T(([01]\d|2[0-3]):([0-5]\d):([0-5]\d))?(+-\d:[0-5]\d)$)/gm

Simple regex to split url

提取并分组： 题号 ABCD四个答案

Matching %d-%b date format with or without leading 0 in the day

Accounts for any character 4 times and not 'null'

lua file name

Regexp to add gcache.size to Galera cluster config, using Ansible's replace module

extracting mobile number along with country code

extracting email id from given string

phone number matcher

Using capturing group to match any text between [ and ] Test string '([Total Revenue] + [COGS] + [Distribution Costs] + [Sales Force Costs] + [A&P Costs] + [NDA Affairs Costs] + [Other Operating Costs]) * - [NDA share]'

Parsing data in SAFE text file

A regex string to validate flight number

获取变量值等

Match em um IPv4 válido

Extract info about STP TCNs

Simple MAC address match/parsing expression