Useful list of regular expressions with Actionscript 3.0 and RegExp class

In computing, regular expressions provide a concise and flexible means for identifying strings of text of interest, such as particular characters, words, or patterns of characters.
A regular expression (often shortened to regex or regexp) is written in a formal language that can be interpreted by a regular expression processor, a program that either serves as a parser generator or examines text and identifies parts that match the provided specification.

Are used to analyze texts and strings and check if they comply with certain parameters.
For example, you can use to validate the input of an e-mail in a form.

Class Actionscript 3.0 allows you to use regular expressions with Flash CS3, Flash CS4, Flex 3 and Flex 4.

I created a very useful list of regular expressions for people like me develop with Adobe Flash.
The following list has been tested with Actionscript 3.0 and Flash CS4.

VALIDATE AN URL

var validURLRegExp:RegExp = /^http(s)?:\/\/((\d+\.\d+\.\d+\.\d+)|(([\w-]+\.)+([a-z,A-Z][\w-]*)))(:[1-9][0-9]*)?(\/([\w-.\/:%+@&=]+[\w- .\/?:%+@&=]*)?)?(#(.*))?$/i;
trace( validURLRegExp.test( "http://www.google.com" ) );

VALIDATE EMAIL ADDRESSES

var validEmailRegExp:RegExp = /^([a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})*$/;
trace( validEmailRegExp.test( "flepstudio@gmail.com" ) );

VALIDATE PHONE NUMBERS

it must start with + sign and the international code

var validPhoneNumberRegExp:RegExp = /(^\+[0-9]{2}|^\+[0-9]{2}\(0\)|^\(\+[0-9]{2}\)\(0\)|^00[0-9]{2}|^0)([0-9]{9}$|[0-9\-\s]{10}$)/;
trace( validPhoneNumberRegExp.test( "+393349713568" ) );

VALIDATE DATE FORMATS

formats DD/MM/YY or DD/MM/YYYY or MM/DD/YY or MM/DD/YYYY

var validDateRegExp:RegExp= /^(\d{1,2})\/(\d{1,2})\/(\d{2}|(19|20)\d{2})$/;
trace(validDateRegExp.test("12/05/1972"));

VALIDATE ALPHANUMERIC CHARACTERS

var validAlphaNumericRegExp:RegExp= /^[a-zA-Z0-9]*$/;
trace(validAlphaNumericRegExp.test("Flep1972"));

VALIDATE UK POSTAL CODES

var validUKpostalCodeRegExp:RegExp= /^([A-Z]{1,2}[0-9][A-Z0-9]? [0-9][ABD-HJLNP-UW-Z]{2})*$/;
trace(validUKpostalCodeRegExp.test("ME7 9AA"));

VALIDATE AUSTRALIAN POSTAL CODES

var validAUpostalCodeRegExp:RegExp= /^((0[289][0-9]{2})|([1345689][0-9]{3})|(2[0-8][0-9]{2})|(290[0-9])|(291[0-4])|(7[0-4][0-9]{2})|(7[8-9][0-9]{2}))*$/;
trace(validAUpostalCodeRegExp.test("2620"));

VALIDATE CANADIAN POSTAL CODES

var validCanadianPostalCodeRegExp:RegExp= /^([ABCEGHJKLMNPRSTVXY][0-9][A-Z] [0-9][A-Z][0-9])*$/;
trace(validCanadianPostalCodeRegExp.test("K1A 0B1"));

VALIDATE DIGITS (WHOLE NUMBERS)

var validDigitsRegExp:RegExp= /^[0-9]*$/;
trace(validDigitsRegExp.test("29647362"));

VALIDATE IP ADDRESSES

var validIPRegExp:RegExp= /^((?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))*$/;
trace(validIPRegExp.test("192.168.0.0"));

VALIDATE LOWER CASE ALPHABETIC CHARACTERS

var validLowerCaseRegExp:RegExp= /^([a-z])*$/;
trace(validLowerCaseRegExp.test("filippolughi"));

VALIDATE UPPER CASE ALPHABETIC CHARACTERS

var validUpperCaseRegExp:RegExp= /^([A-Z])*$/;
trace(validUpperCaseRegExp.test("FLEPSTUDIO"));

VALIDATE STRONG PASSWORDS

The password must contain one lowercase letter, one uppercase letter, one number, and be at least 6 characters long.

var validPasswordRegExp:RegExp= /^(?=^.{6,}$)((?=.*[A-Za-z0-9])(?=.*[A-Z])(?=.*[a-z]))^.*$/;
trace(validPasswordRegExp.test("filiPPo1972"));

VALIDATE ZIP CODES

var validZipRegExp:RegExp= /^([0-9]{5}(?:-[0-9]{4})?)*$/;
trace(validZipRegExp.test("40202"));

VALIDATE MAJOR CREDIT CARDS

var validMajorCreditCardsRegExp:RegExp= /^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6011[0-9]{12}|622((12[6-9]|1[3-9][0-9])|([2-8][0-9][0-9])|(9(([0-1][0-9])|(2[0-5]))))[0-9]{10}|64[4-9][0-9]{13}|65[0-9]{14}|3(?:0[0-5]|[68][0-9])[0-9]{11}|3[47][0-9]{13})*$/;
trace(validMajorCreditCardsRegExp.test("Type here your credit card number and test it"));

VALIDATE DINERS CLUB CREDIT CARDS

var validDinersRegExp:RegExp= /^(3(?:0[0-5]|[68][0-9])[0-9]{11})*$/;
trace(validDinersRegExp.test("Type here your Dyners Club credit card number and test it"));

VALIDATE MASTERCARD CREDIT CARDS

var validMasterCardRegExp:RegExp= /^(5[1-5][0-9]{14})*$/;
trace(validMasterCardRegExp.test("Type here your MasterCard credit card number and test it"));

VALIDATE VISA CREDIT CARDS

var validVisaCardRegExp:RegExp= /^(4[0-9]{12}(?:[0-9]{3})?)*$/;
trace(validVisaCardRegExp.test("Type here your Visa credit card number and test it"));

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Tagged as: actionscript 3.0 regular expressions, flash cs3 regular expressions, flash cs4 regular expressions, RegExp