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

Title	Test Details Pattern Title
Expression	([\d\w-.]+?\.(a[cdefgilmnoqrstuwz]|b[abdefghijmnorstvwyz]|c[acdfghiklmnoruvxyz]|d[ejkmnoz]|e[ceghrst]|f[ijkmnor]|g[abdefghilmnpqrstuwy]|h[kmnrtu]|i[delmnoqrst]|j[emop]|k[eghimnprwyz]|l[abcikrstuvy]|m[acdghklmnopqrstuvwxyz]|n[acefgilopruz]|om|p[aefghklmnrstwy]|qa|r[eouw]|s[abcdeghijklmnortuvyz]|t[cdfghjkmnoprtvwz]|u[augkmsyz]|v[aceginu]|w[fs]|y[etu]|z[amw]|aero|arpa|biz|com|coop|edu|info|int|gov|mil|museum|name|net|org|pro)(\b|\W(?<!&|=)(?!\.\s|\.{3}).*?))(\s|$)
Description	This will find URLs in plain text. With or without protocol. It matches against all toplevel domains to find the URL in the text.
Matches	http://www.website.com/index.html | www.website.com | website.com
Non-Matches	Works in all my tests. Does not capture protocol.
Author	Rating: James Johnston

Title	Test Details Pattern Title
Expression	<a\s*href=(.*?)[\s|>]
Description	Retrieves all anchor links in a html document, useful for spidering. You will need to do a replace of " and ' after the regular expression, as the expression gets all links. As far as I know there is no way, even with \1 groupings, of getting a condition on whether the link contains a ",' or nothing at all (" and ' is easy enough, but what happens if the link starts with ", and has a javascript function call with a string in it). If there is, it's probably quicker to do it like this and do a string replace anyway.
Matches	<a href="http://www.blah.com"> | <a href='../blah.html' target="_top"&a
Non-Matches	<a href = http://www.idiothtmlprogrammers.com >
Author	Rating: chris s

Title	Test Details Single Email Match - current June 2010
Expression	^[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+(?:[a-zA-Z]{2}|aero|asia|biz|cat|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|org|pro|tel|travel)$
Description	Matches email addresses. Based on expression at regular-expressions.info/email.html modified to include all top-level domains (TLD)listed on wikipedia as of June 2010. Needs to be updated as new TLDs are added. Known Issues: * IP Addresses will not validate * Double "at" symbols, e.g. email@em@il.com slip by this regex. Would welcome improvements by a regex ninja.
Matches	email@email.com | email@email.cn | e_m81l&em%'l@eMail.MUSEUM | email@em@il.com
Non-Matches	email@com | email@email.con | email@email.museet | email@192.0.0.1
Author	Rating: Brent Thomas

Title	Test Details International & Domestic Phone Numbers with Ext
Expression	^([\+][0-9]{1,3}([ \.\-])?)?([\(]{1}[0-9]{3}[\)])?([0-9A-Z \.\-]{1,32})((x|ext|extension)?[0-9]{1,4}?)$
Description	Somewhat conservative expression for evaluating phone numbers. Based off ideas found at http://stackoverflow.com/questions/123559/a-comprehensive-regex-for-phone-number-validation this allows country codes, with or without the + symbol, area codes surrounded by parenthesis (or not) and numbers delimited by spaces, periods or dashes. You'll want to independently test for string length based on your needs.
Matches	(123)456-7890 | (123)456-7890 x123 | +1 (123)456-7890 | 12 3456 789 0 x1234 | (123)456-7890x123 |(123)456-7890ext123 | (123)456-7890 extension123 | 123.456.7890 | 1234567890 | 1234567 | 12 34 56 78 90 | 12 3 4567 890123 x4567 | +12 3456 7890 | +12 34 56 7890 | +12 3456 7890 | +12 34567890
Non-Matches	(123)456-7890 x 123 | 123.45.6.78+90
Author	Rating: Brent Thomas

Title	Test Details Date Match
Expression	^(d{0}|(31(?!(FEB|APR|JUN|SEP|NOV)))|((30|29)(?!FEB))|(29(?=FEB(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))|(29(?=FEB(((0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))|(0?[1-9])|1\d|2[0-8])(JAN|FEB|MAR|MAY|APR|JUL|JUN|AUG|OCT|SEP|NOV|DEC)((1[6-9]|[2-9]\d)\d{2}|\d{2}|d{0})$
Description	This pattern mathces the following date formats: DDMMMYY,DDMMMYYYY,DDMMMYY. The Pattern matches on leap year dates as well
Matches	12MAR02 | 12MAR2008 | 29FEB2008 | 12MAR
Non-Matches	29FEB2007 | 32MAR | 00APR
Author	Rating: Ole

Title	Test Details Scientific Notation
Expression	^(-?[1-9](\.\d+)?)((\s?[X*]\s?10[E^]([+-]?\d+))|(E([+-]?\d+)))$
Description	Matches both normalized and E notations, with or without spaces or negative numbers. Make sure to use a case insensitive pattern matcher. Group 1 is the significand, and either group 5 or group 7 is the exponent (one or the other will be null, but never both).
Matches	1.1 x 10^9 | 2.34 X 10^12 | 3.14159 * 10^30 | 1.1x10^9 | 2.34X10^12 | 3.14159*10^30 | 1.1 x 10e9 | 2.34 x 10E12 | 3.14159e30 | 1.1 x 10^-9 | 2.34 X 10^-12 | 3.14159E-30 | -1.1 x 10^9 | -2.34 X 10E12 | -3.14159 * 10e30 | -1.1x10^-9 | -2.34E-12 | -3.14159e-30 | 3.1459E+030 | 1x10^9 | 1E9
Non-Matches	0.1 x 10^9 | 23.4 x 10^12 | 3.14159 * 10e^30 | 1.1e8.3
Author	Rating: Jared Cook

Title	Test Details Pattern Title
Expression	^(\d{4}-){3}\d{4}$|^(\d{4} ){3}\d{4}$|^\d{16}$
Description	Used to validate Credit Card numbers, Checks if it contains 16 numbers in groups of 4 separated by -, ,or nothing
Matches	1111-2323-2312-3434 | 1234343425262837 | 1111 2323 2312 3434
Non-Matches	1111 2323 2312-3434 | 34323423 | 1111-2323-23122-3434
Author	Rating: Not yet rated. Sachin Bhatt

Title	Test Details Pattern Title
Expression	^([a-zA-Z '-]+)$
Description	Check if the text is a valid firstname or lastname.It allows Characters,'- and space only
Matches	Sachin Bhatt | D'Souza | Ul-Haq
Non-Matches	sac2hin | sc*& | sac)in
Author	Rating: Sachin Bhatt

Title	Test Details FQDN for DNS configuration tool
Expression	^(?=^.{1,254}$)(^(?:(?!\.|-)([a-z0-9\-\*]{1,63}|([a-z0-9\-]{1,62}[a-z0-9]))\.)+(?:[a-z]{2,})$)$
Description	This regex matches FQDNs plus domains starting with an or containing asterisk. This is usefull for DNS configuration tools where you might have domains like *.domain.de or 12.152.80.in-addr.arpa.
Matches	12.152.80.in-addr.arpa | *.domain.de | test.de
Non-Matches	test | test. | -.de
Author	Rating: Andreas Burger

Title	Test Details Number
Expression	^\s*[+-]?\s*(?:\d{1,3}(?:(,?)\d{3})?(?:\1\d{3})*(\.\d*)?|\.\d+)\s*$
Description	Matches numbers. May include decimals, thousands separators, and sign.
Matches	5,000 | - 10 | .1
Non-Matches	7.000.000 | 5,0000 | 1.000,000
Author	Rating: mark

Title	Test Details AW Short Coordinate
Expression	^[0-9]+[NnSs] [0-9]+[WwEe]$
Description	This tests, are entered AW coordinates in correct short format, and it has no world info
Matches	0N 0W
Non-Matches	aw 0N 0W
Author	Rating: Slysoft

Title	Test Details Allow Decimal only
Expression	^\d*[0-9](|.\d*[0-9]|)*$
Description	Decimal like 123.23 123.1234 12345.456
Matches	123.23 | 123.1234 | 1234 | 1234.456
Non-Matches	123a.12 | 123.34d | abc
Author	Rating: Not yet rated. Gyanendra

Title	Test Details Pattern Title
Expression	(?s)( class=\w+(?=([^<]*>)))|(<!--\[if.*?<!\[endif\]-->)|(<!\[if !\w+\]>)|(<!\[endif\]>)|(<o:p>[^<]*</o:p>)|(<span[^>]*>)|(</span>)|(font-family:[^>]*[;'])|(font-size:[^>]*[;'])(?-s)
Description	Word HTML cleanup code. Use this expression to get rid of most of the stuff that Word adds to an HTML document such as: lots of span elements, font-family and font-size style attributes, class attributes, a whole bunch of if-then statements. Use this expression in a regex.replace(originalHtml, regExpr, "").
Matches	<span>
Non-Matches	<table>
Author	Rating: Peter Donker

Title	Test Details Pattern Title
Expression	^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w ]*.*))+\.((html|HTML)|(htm|HTM))$
Description	Path of files HTML and HTM
Matches	c:\arquivo.html | \\home\arquivo232.HTML | Z:\teste.htm
Non-Matches	c:\arquivo.png | arquivo232.HTML | Z:\teste
Author	Rating: Diego Siebra Ferreira

Title	Test Details Disallow certain characters
Expression	^[^'<>?%!\s]{1,20}$
Description	Disallow ' or < or > or ? or % or ! or space in a string. Minimum character is 1 and maximum is 20 in a string.
Matches	abcd123 | --+abc
Non-Matches	abc'123 | abc? | abc abc | <script>
Author	Rating: Bryian Tan

Title	Test Details Password with n numbers of digits, upper case character and special character.
Expression	(?=^.{12,25}$)(?=(?:.*?\d){2})(?=.*[a-z])(?=(?:.*?[A-Z]){2})(?=(?:.*?[!@#$%*()_+^&}{:;?.]){2})(?!.*\s)[0-9a-zA-Z!@#$%*()_+^&]*$
Description	User can specify n numbers of digits, upper case character and special character. In this example, we will use two special characters, digits and upper case in the password. Explanation: (?=^.{12,25}$) -- password length range from 12 to 25 (?=(?:.*?[!@#$%*()_+^&}{:;?.]){2}) -- at least 2 special characters (!@#$%*()_+^&}{:;?.}) (?=(?:.*?\d){2}) -- at least 2 digits (?=.*[a-z]) -- characters a-z (?=.{2,}[A-Z]) -- at least 2 upper case characters
Matches	PassW0rd@1*3, pAsSword@#123
Non-Matches	PassW0rd@1*, PassW0rd@1*3', PassW0rd@1 3p
Author	Rating: Bryian Tan

Title	Test Details RegularExpression which does not allow SPACE
Expression	(?=^.{1,}$)(?!.*\s)[0-9a-zA-Z!@#$%*()_+^&\[\]]*$
Description	Regular Expression which does not allow SPACE but allows every possible alpha-numeric and special characters.
Matches	abc*()A123 | 12xyz[_]
Non-Matches	no space | abc *0123[]
Author	Rating: Bryian Tan

Title	Test Details Regular Expression to validate file path and extension
Expression	^(?:[\w]\:|\\)(\\[a-z_\-\s0-9\.]+)+\.(txt|gif|pdf|doc|docx|xls|xlsx)$
Description	Regular Expression to validate file path and extension.Compatible with JavaScript and ASP.NET
Matches	\\192.168.0.1\folder\file.pdf | \\192.168.0.1\my folder\folder.2\file.gif | c:\my folder\abc abc.docx | c:\my-folder\another_folder\abc.v2.docx
Non-Matches	\\192.168.0.1\folder\fi/le.pdf | \\192.168.0.1\folder\\file.pdf | \\192.168.0.1\my folder\folder.2\.gif | c:\my folder\another_folder\.docx | c:\my folder\\another_folder\abc.docx | c:\my folder\another_folder\ab*c.v2.docx | c:\my?folder\another_folder\abc.v2.docx | file.xls
Author	Rating: Not yet rated. Bryian Tan

Title	Test Details Pattern Title
Expression	^(?=.*[0-9]+.*)(?=.*[a-zA-Z]+.*)[0-9a-zA-Z]{6,}$
Description	Password must contain at least one letter, at least one number, and be longer than six charaters.
Matches	a1b2c3 | abcdefg123 | 12345a
Non-Matches	abcdefghij | 1234567890
Author	Rating: Eric Miller

Title	Test Details Pattern Title
Expression	^((?-i:0x)?[A-Fa-f0-9]{32}| [A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}| \{[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}\})$
Description	Validates a GUID/UUID, without capture, to the following patterns: [{hhhhhhhh-hhhh-hhhh-hhhh-hhhhhhhhhhhh}], [hhhhhhhh-hhhh-hhhh-hhhh-hhhhhhhhhhhh],[hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh],[0xhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh], where 'h' is a valid hex character. This last pattern is a binary format commonly used with SQL Server 2000. It allows you to use binary(n) and varbinary(n) parameters that convert well to unique identifier. Please note that this is not case sensitive EXCEPT the 'x' in the binary pattern. It must be lower case.
Matches	6F9619FF-8B86-D011-B42D-00C04FC964FF | 0x6F9619FF8B86D011B42D00C04FC964FF | {6F9619FF-8B86-D011-B42D
Non-Matches	{6F9619FF8B86D011B42D00C04FC964FF} | 0X6F9619FF8B86D011B42D00C04FC964FF
Author	Rating: Patrick Fogarty