extracting email id from given string

var FONTFACE_PATTERN = /(?:^|)(?:(?<=(?:font-family[:] ?))'"['"]|(?<=(?:font-weight[:])) ?(.+?)|(?<=(?:font-style[:])) ?(.+?)|(?<=src: ?url[(])(?:['"]?data:(.+?);,[,])(.+?)(?:['"]?[)])(?:[\n\s ]?format((\S+)'"])?)(?:;)(?:|$)/mdg Rudimentary pattern for matching base64-embedded webfonts in CSS style...

域名规则

匹配中、英文、数字、全角符号，破折号和下滑线，不匹配除了这些以外的其他字符

Regax for validate any variable string

phone number matcher

$1 or $channel = channel name $2 or $bullshit = text to ignore $3 or $url = channel url "HD" inside of `` group is search string to find all channels (with their urls) which names contain it. Feel free to play around with it.

css class

mac address validation in hex or decimal form

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]'

regex cpf

Parsing data in SAFE text file

A regex string to validate flight number

获取变量值等

Package from Site

Match em um IPv4 válido

more than two dots

-ltr --time-style='+%s'

Android logcat command line raw

Hopefully it can tell if it is android webview or not.