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Title	Test Details Pattern Title
Expression	(AUX|PRN|NUL|COM\d|LPT\d)+\s*$
Description	"Be careful when opening or creating files by using Scripting File System Object. If the filename is based on the user's input, the user might attempt to open a serial port or printer."
Matches	COM1 | AUX | LPT1
Non-Matches	image.jpg | index.html | readme.txt
Author	Rating: Not yet rated. Chris Craft

Title	Test Details Pattern Title
Expression	^\$[0-9]+(\.[0-9][0-9])?$
Description	Validates a dollar amount including a dollar sign and 2 decmals. The decimal and cents are optional.
Matches	$1.50 | $49 | $0.50
Non-Matches	1.5 | $1.333 | this $5.12 fails
Author	Rating: Not yet rated. Bob Levittan

Title	Test Details Pattern Title
Expression	/\*[\d\D]*?\*/
Description	If you need to extract or remove any /* */ sytle comments from any Java, JavaScript, C, C++, CSS, etc code you have this regular expression can help.
Matches	/* my comment */ | /* my multiline comment */ | /* my nested comment */
Non-Matches	*/ anything here /* | anything between 2 seperate comments | \* *\
Author	Rating: Chris Craft

Title	Test Details Pattern Title
Expression	\b(([01]?\d?\d|2[0-4]\d|25[0-5])\.){3}([01]?\d?\d|2[0-4]\d|25[0-5])\b
Description	Most Concise RegExp for matching Decimal IPs. If nothing else, it'll make your code easier to read. (And I know that \d?\d is \d{1,2} but that's 2 extra characters.) --Update: darkone noticed 8 characters could be shaved down. I've edited it to reflect this. Thanks, darkone!
Matches	217.6.9.89 | 0.0.0.0 | 255.255.255.255
Non-Matches	256.0.0.0 | 0978.3.3.3 | 65.4t.54.3
Author	Rating: Sean Schricker

Title	Test Details Pattern Title
Expression	^(user=([a-z0-9]+,)*(([a-z0-9]+){1});)?(group=([a-z0-9]+,)*(([a-z0-9]+){1});)?(level=[0-9]+;)?$
Description	This re was used for a security routine. The format is: [user=name1,name2,...,nameN;][group=group1,group2,...,groupN;][level=number;] Each component is optional, but they must appear the in order listed if applicable.
Matches	user=foo,bar,quux;group=manager,admin;level=100; | group=nobody;level=24;
Non-Matches	user=foo | blahh
Author	Rating: Not yet rated. Michael Scovetta

Title	Test Details Pattern Title
Expression	^[0-9]+$
Description	Validate a string to see if it contains a number / integer
Matches	1234567890 | 1234567890 | 1234567890
Non-Matches	http://none | http://none | http://none
Author	Rating: Mr M

Title	Test Details Pattern Title
Expression	^\D?(\d{3})\D?\D?(\d{3})\D?(\d{4})$
Description	This RegEx requires a US phone number WITH area code. It is written to all users to enter whatever delimiters they want or no delimiters at all (i.e. 111-222-3333, or 111.222.3333, or (111) 222-3333, or 1112223333, etc...).
Matches	(111) 222-3333 | 1112223333 | 111-222-3333
Non-Matches	11122223333 | 11112223333 | 11122233333
Author	Rating: Laurence O'Donnell

Title	Test Details Pattern Title
Expression	^([\w\d\-\.]+)@{1}(([\w\d\-]{1,67})|([\w\d\-]+\.[\w\d\-]{1,67}))\.(([a-zA-Z\d]{2,4})(\.[a-zA-Z\d]{2})?)$
Description	This pattern allows standard e-mail addresses (e.g. [email protected]), sub domains (e.g. [email protected]), the new two- and four-letter domains (e.g. [email protected] and [email protected]) and country codes (e.g. [email protected]). Also, this patter follows the Network Solutions standard length of 67 characters for top-level domains. The reason I allow numbers to be entered in the domain suffix is for future planning. If you do not want numbers to be able to be added as a domain suffix (e.g. [email protected]), simply delete the last two occurrences of "\d".
Matches	[email protected] | [email protected] | [email protected]
Non-Matches	[email protected] | [email protected] | foo@[email protected]
Author	Rating: Not yet rated. Laurence O'Donnell

Title	Test Details Pattern Title
Expression	^(\d{4}[- ]){3}\d{4}|\d{16}$
Description	Credit card validator. Just checks that the format is either 16 numbers in groups of four separated by a "-" or a " " or nothing at all.
Matches	1234-1234-1234-1234 | 1234 1234 1234 1234 | 1234123412341234
Non-Matches	Visa | 1234 | 123-1234-12345
Author	Rating: Not yet rated. Steven Smith

Title	Test Details Pattern Title
Expression	((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}
Description	US Phone Number -- doesn't check to see if first digit is legal (not a 0 or 1).
Matches	(123) 456-7890 | 123-456-7890
Non-Matches	1234567890
Author	Rating: Not yet rated. Steven Smith

Title	Test Details Pattern Title
Expression	^((4\d{3})|(5[1-5]\d{2})|(6011))-?\d{4}-?\d{4}-?\d{4}|3[4,7]\d{13}$
Description	Matches major credit cards including: Visa (length 16, prefix 4), Mastercard (length 16, prefix 51-55), Discover (length 16, prefix 6011), American Express (length 15, prefix 34 or 37). All 16 digit formats accept optional hyphens (-) between each group of four digits.
Matches	6011-1111-1111-1111 | 5423-1111-1111-1111 | 341111111111111
Non-Matches	4111-111-111-111 | 3411-1111-1111-111 | Visa
Author	Rating: Steven Smith

Title	Test Details Pattern Title
Expression	\d{4}-?\d{4}-?\d{4}-?\d{4}
Description	Major credit card validator. Only checks that the format is 16 digits (optionally separated by hyphens), not the value of any of the digits.
Matches	1234-1234-1234-1234 | 1234123412341234
Non-Matches	1234123412345
Author	Rating: Steven Smith

Title	Test Details Pattern Title
Expression	[\w-]+@([\w-]+\.)+[\w-]+
Description	Yet another simple email validator expression.
Matches	[email protected] | [email protected]
Non-Matches	asdf | 1234
Author	Rating: Steven Smith

Title	Test Details Pattern Title
Expression	^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$
Description	This expression matches email addresses, and checks that they are of the proper form. It checks to ensure the top level domain is between 2 and 4 characters long, but does not check the specific domain against a list (especially since there are so many of them now).
Matches	[email protected] | [email protected] | [email protected]
Non-Matches	a@b | notanemail | joe@@.
Author	Rating: Steven Smith

Title	Test Details Pattern Title
Expression	^[12345]$
Description	This matches a single numeric digit between 1 and 5, and is the same as saying ^[1-5]$.
Matches	1 | 2 | 4
Non-Matches	6 | -1 | abc
Author	Rating: Not yet rated. Steven Smith

Title	Test Details Pattern Title
Expression	^[1-5]$
Description	This matches a single numeric digit between 1 and 5, and is the same as saying ^[12345]$.
Matches	1 | 3 | 4
Non-Matches	6 | 23 | a
Author	Rating: Steven Smith

Title	Test Details Pattern Title
Expression	foo
Description	The "hello world" of regular expressions, this will match any string with an instance of 'foo' in it.
Matches	foo
Non-Matches	bar
Author	Rating: Steven Smith

Title	Test Details Date With Slashes
Expression	^\d{1,2}\/\d{1,2}\/\d{4}$
Description	This regular expressions matches dates of the form XX/XX/YYYY where XX can be 1 or 2 digits long and YYYY is always 4 digits long.
Matches	4/1/2001 | 12/12/2001 | 55/5/3434
Non-Matches	1/1/01 | 12 Jan 01 | 1-1-2001
Author	Rating: Steven Smith

Title	Test Details Email - Overly Simple
Expression	^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$
Description	Simple email expression. Doesn't allow numbers in the domain name and doesn't allow for top level domains that are less than 2 or more than 3 letters (which is fine until they allow more). Doesn't handle multiple "." in the domain ([email protected]).
Matches	[email protected] | [email protected] | [email protected]
Non-Matches	[email protected] | [email protected] | [email protected]
Author	Rating: Steven Smith

Title	Test Details Strongish Password
Expression	^[a-zA-Z]\w{3,14}$
Description	The password's first character must be a letter, it must contain at least 4 characters and no more than 15 characters and no characters other than letters, numbers and the underscore may be used
Matches	abcd | aBc45DSD_sdf | password
Non-Matches	afv | 1234 | reallylongpassword
Author	Rating: Not yet rated. Steven Smith