Regular Expressions 101

Basic email regex for quick validation

This expression validates russian phones in different formats

Safe EMail validation protected against ReDos attack. It exclude all non conventionnal special char like #{%... only accept . - and _. . EMail can't start with number or specials chars. Domain accept only one subdomain and ip are available 63 Maximum characters accepted

Safe EMail validation protected against ReDos attack. Exclude all non conventionnal special char like #{%... only accept . - and _. . EMail can't start with number or specials chars. Domain accept only one subdomain and ip are available 63 Maximum characters accepted Check for valid IP

Validação de código de barras boleto padrão "FEBRABAN - Federação Brasileira de Bancos".

Comes with choice of four separators

Very simple validation expression that will validate a date in the range of 19000101 through 20991231. These formats are very popular for partitioning and representing dates as Long values or Integers. This does not check for Leap year values, or the months with varying number of days. Please Note...

IPv4 Address Validation Regex

VLAN ID Validation Regex Please use first segment or second depending on the Extended VLAN usage such as "1-256" or "1-4096" : Non-extended VLAN IDs (1-256), check v2 of the regex entry ...

email validation

Find validation name and name inside parentheses

Regex used for password validation. A password match the following: At least 8 characters in length Minimum of 1 lower-case character Minimum of 1 upper-case character Minimum of 1 digit Minimum of 1 special character (non-whitespace)

Validates mail addresses

Checks in input for matching social security numbers in Denmark

This one makes sure to not match 31 in months where it does not exist and cuts off february at 28. Might need to do special check for 29th of february ..?

Only meant as an initial client-side filter to override the default input[type=email] validation done according to spec, which is much too simple. Inputs passing this regex MUST get validated in a more fine-grained manner again when received on the server-side

It validates the RGB expression doesn't break the CSS parser.

links validation

This is used for simple email validation

(?!..]{2})((https?|http)\:\/\/)?([a-z0-9+!(),;?&=\$.-]+(\:[a-z0-9+!(),;?&=\$.-]+)?@)?([a-z0-9-.-.]?(?!.\/).)\.([a-z]{2,1000})(\:[0-9]{2,5})?(\/([a-z0-9+\$-]\.?)+)\/?(\?[a-z+&\$.-)?(#a-z_.-)?