RegExLib.com - The first Regular Expression Library on the Web!

Title	Test Details Pattern Title
Expression	^([A-Za-z]\d[A-Za-z][-]?\d[A-Za-z]\d)
Description	Regular expression to match a canadian postal code where it matches a string with or without the hyphen and in upercase or lowercase
Matches	a1a-1a1 | A1A1A1
Non-Matches	1a1-a1a | aaa-aaa | 111-111
Author	Rating: Rico lour

Title	Test Details Pattern Title
Expression	<img([^>]*[^/])>
Description	Use this along with this replacement string &lt;img\1 /&gt; to convert image tags to XHTML compliant image tags.
Matches	<img src="bob">
Non-Matches	<img src="bob" />
Author	Rating: Murray Roke

Title	Test Details Pattern Title
Expression	^[A-Za-z]{6}[0-9LMNPQRSTUV]{2}[A-Za-z]{1}[0-9LMNPQRSTUV]{2}[A-Za-z]{1}[0-9LMNPQRSTUV]{3}[A -Za-z]{1}$
Description	Check italian fiscal code (codice fiscale) with "OMOCODIA" control
Matches	BTTNDR78R06A79QU
Non-Matches	BTTNDR78R06A79AU
Author	Rating: andrea mele

Title	Test Details Pattern Title
Expression	\u00AE
Description	Matches the registered trademark (®). Pretty simple, yet I dont think existed on RegExLib before.
Matches	®
Non-Matches	anything else
Author	Rating: Roman Lukyanenko

Title	Test Details Pattern Title
Expression	^([0-9]{2})?(\([0-9]{2})\)([0-9]{3}|[0-9]{4})-[0-9]{4}$
Description	A simple expression to brazilian phone number code, with international code. Simple DDI without "+" 99 plus simple DDD (99) plus simple local phone number 3 or 4 digits plus "-" plus 4 digits.
Matches	55(21)123-4567 | (11)1234-5678 | 55(71)4562-2234
Non-Matches	3434-3432 | 4(23)232-3232 | 55(2)232-232
Author	Rating: Rafael Miranda

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	\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	\u00A3
Description	Matches the British Pound symbol. Pretty simple, yet I dont think existed on RegExLib before.
Matches	£
Non-Matches	anything else
Author	Rating: Roman Lukyanenko

Title	Test Details Pattern Title
Expression	\u20AC
Description	Matches the Euro sign. Pretty simple, yet I dont think existed on RegExLib before.
Matches	€
Non-Matches	anything else
Author	Rating: Roman Lukyanenko

Title	Test Details Pattern Title
Expression	\u221E
Description	Matches infinity symbol. Pretty simple, yet I dont think existed on RegExLib before.
Matches	8
Non-Matches	anything else
Author	Rating: Roman Lukyanenko

Title	Test Details Pattern Title
Expression	\u2122
Description	Matches the ™ symbol. Pretty simple, yet I dont think existed on RegExLib before.
Matches	™
Non-Matches	anything else
Author	Rating: Roman Lukyanenko

Title	Test Details Pattern Title
Expression	^[{|\(]?[0-9a-fA-F]{8}[-]?([0-9a-fA-F]{4}[-]?){3}[0-9a-fA-F]{12}[\)|}]?$
Description	Specifier Format of Guid Values that this RegEx supports: 32 digits: [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx] 32 digits separated by hyphens: [xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx] 32 digits separated by hyphens, enclosed in brackets: [{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}] 32 digits separated by hyphens, enclosed in parentheses: [(xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)]
Matches	914D226A-2F5B-4944-934D-96BBE6571977 | {914D226A-2F5B-4944-934D-96BBE6571977}
Non-Matches	914D226A-2F5B-4944-XXXX-96BBE6571977 | {914D226A-2F5B-4944-XXXX-96BBE6571977}
Author	Rating: Nicholas Berardi

Title	Test Details Pattern Title
Expression	^[1-9]{1}[0-9]{3} ?[A-Z]{2}$
Description	Postcode check for Netherlands
Matches	1234 AB | 1234AB
Non-Matches	123AB | 1234AAA
Author	Rating: Henk de Vries

Title	Test Details Pattern Title
Expression	,(?!(?<=(?:^|,)\s*\x22(?:[^\x22]|\x22\x22|\\\x22)*,)(?:[^\x22]|\x22\x22|\\\x22)*\x22\s*(?:,|$))
Description	This regex can be used to split the values of a comma delimitted list. List elements may be quoted, unquoted or empty. Commas inside a pair of quotation marks are not matched.
Matches	1,,3""but, wait",5 | 1,2,3
Non-Matches	"Test""a,b,c,d""ing" | no comma | semi; colon
Author	Rating: Michael Ash

Title	Test Details Pattern Title
Expression	^(([a-zA-Z]:|\\)\\)?(((\.)|(\.\.)|([^\\/:\*\?"\|<>\. ](([^\\/:\*\?"\|<>\. ])|([^\\/:\*\?"\|<>]*[^\\/:\*\?"\|<>\. ]))?))\\)*[^\\/:\*\?"\|<>\. ](([^\\/:\*\?"\|<>\. ])|([^\\/:\*\?"\|<>]*[^\\/:\*\?"\|<>\. ]))?$
Description	File Name Validator. Validates both UNC (\\server\share\file) and regular MS path (c:\file).
Matches	File.txt | c:\Blah\..\.\Blah Blah.Blah\File.txt | \\server\share\file.txt
Non-Matches	File.txt | c:\.File.txt | c:\.\.Blah\File.txt
Author	Rating: Dmitry Borysov

Title	Test Details Pattern Title
Expression	\u00A5
Description	Matches the Yen sign. Pretty simple, yet I dont think existed on RegExLib before.
Matches	¥
Non-Matches	anything else
Author	Rating: Roman Lukyanenko

Title	Test Details Pattern Title
Expression	[:]{1}[-~+o]?[)>]+
Description	This ist the Expression for a happy smiley. It should find all the usual writings of the emotion icon :)
Matches	:))))) | :+> | :o)
Non-Matches	;o) | :-(
Author	Rating: Ullrich Clemenz Canaan

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	^([A-Z|a-z]{2}\s{1}\d{2}\s{1}[A-Z|a-z]{1,2}\s{1}\d{1,4})?([A-Z|a-z]{3}\s{1}\d{1,4})?$
Description	It validates Indian Vehicle Registration Number
Matches	mh 12 bj 1780 | mmx 1234
Non-Matches	mmm 123 1234 | mm 12 bj 345 | mm 12345
Author	Rating: himraj love

Title	Test Details Pattern Title
Expression	(\/\/-->\s*)?<\/?SCRIPT([^>]*)>(\s*<!--\s)?
Description	Can be used to remove <SCRIPT language="JavaScript"> <!-- //--> </SCRIPT> from embeded javascript Should be used as case insensitive
Matches	<SCRIPT language="JavaScript"> <!-- //--> </SCRIPT> | <SCRIPT l
Non-Matches	<!-- //-->
Author	Rating: Mike t