38 regular expressions found in this category!
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Pattern Title
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| Expression |
^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*\.(([0-9]{1,3})|([a-zA-Z]{2,3})|(aero|coop|info|museum|name))$ |
| Description |
Matches e-mail addresses, including some of the newer top-level-domain extensions, such as info, museum, name, etc. Also allows for emails tied directly to IP addresses. |
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| Author |
Rating:
David Huyck
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| Expression |
^(([A-Za-z0-9]+_+)|([A-Za-z0-9]+\-+)|([A-Za-z0-9]+\.+)|([A-Za-z0-9]+\++))*[A-Za-z0-9]+@((\w+\-+)|(\w+\.))*\w{1,63}\.[a-zA-Z]{2,6}$ |
| Description |
It verifies that: - Only letters, numbers and email acceptable symbols (+, _, -, .) are allowed - No two different symbols may follow each other - Cannot begin with a symbol - Ending domain must be at least 2 letters - Supports subdomains - TLD must be between 2 and 6 letters (Ex: .ca, .museum) - Only (-) and (.) symbols are allowed in domain, but not consecutively.
Problems:
See comments below |
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Rating:
Gavin Sharp
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^[\w-]+(?:\.[\w-]+)*@(?:[\w-]+\.)+[a-zA-Z]{2,7}$ |
| Description |
Matches 99.99% of e-mail addresses (excludes IP e-mails, which are rarely used). The {2,7} at the end leaves space for top level domains as short as .ca but leaves room for new ones like .museum, etc. The ?: notation is a perl non-capturing notation, and can be removed safely for non-perl-compatible languages. See also email. |
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J. Washam
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^(([-\w \.]+)|(""[-\w \.]+"") )?<([\w\-\.]+)@((\[([0-9]{1,3}\.){3}[0-9]{1,3}\])|(([\w\-]+\.)+)([a-zA-Z]{2,4}))>$ |
| Description |
Expression 2 or 2 for matching email address syntax. This one matches the <angle bracket syntax>. |
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| Author |
Rating:
David Lott
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| Expression |
\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*([,;]\s*\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*)* |
| Description |
Validates 1 or more email addresses. Email addresses can be delimited with either comma or semicolon. White space is allowed after delimiter, but not necessary. I needed this to allow my users to specify multiple email addresses if they choose to do so. |
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lewis@@moten.com |
| Author |
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Lewis Moten
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^([\w\-\.]+)@((\[([0-9]{1,3}\.){3}[0-9]{1,3}\])|(([\w\-]+\.)+)([a-zA-Z]{2,4}))$ |
| Description |
Expression 1 of 2 used to check email address syntax. |
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| Author |
Rating:
David Lott
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| 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). |
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a@b | notanemail | joe@@. |
| Author |
Rating:
Not yet rated.
Steven Smith
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| Expression |
^(?:[a-zA-Z0-9_'^&/+-])+(?:\.(?:[a-zA-Z0-9_'^&/+-])+)*@(?:(?:\[?(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))\.){3}(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\]?)|(?:[a-zA-Z0-9-]+\.)+(?:[a-zA-Z]){2,}\.?)$ |
| Description |
this will validate most legal email addresses, even allows for some discouraged but perfectly legal characters in local part; allows IP domains with optional []; keeps final tld at a minmum of 2 chars; non capturing groups for efficiency |
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Rating:
Not yet rated.
Micah Duke
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^((?<DRIVE>[a-z]:)|(\\\\(?<SERVER>[0-9]*[a-z\-][a-z0-9\-]*)\\(?<VOLUME>[^\.\x01-\x1F\\""\*\?<>:|\\/][^\x01-\x1F\\""\*\?|><:\\/]*)))?(?<FOLDERS>(?<FOLDER1>(\.|(\.\.)|([^\.\x01-\x1F\\""\*\?|><:\\/][^\x01-\x1F\\""\*\?<>:|\\/]*)))?(?<FOLDERm>[\\/](\.|(\.\.)|([^\.\x01-\x1F\\""\*\?|><:\\/][^\x01-\x1F\\""\*\?<>:|\\/]*)))*)?[\\/]?$ |
| Description |
Verify "well formed-ness" of DOS or UNC paths.
Passed over 170 NUnit test, (took 3 complete rewrites)
Components of a path:
DRIVE:=[a-z]:
SERVER:=[0-9]*[a-z\-][a-z0-9\-]*
FNAME:=[^\.\x01-\x1F\\""\*\?<>:|\\/][^\x01-\x1F\\""\*\?<>:|\\/]*
VOLUME:=FNAME
UNC:=\\SERVER\VOLUME
ROOT:=(DRIVE|UNC)
FOLDER:=.|..|FNAME
FOLDERS:=FOLDER?([\]FOLDER)*[\]?
PATH:=^ROOT?FOLDERS?$ |
| Matches |
his is a very 'long' folder\that is.part of 2 folders. | b\c\..\x. | \\Dads\Mp3\FileName1\.\TestDir2 |
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\\1.dads\C | \. folder\ | .ext |
| Author |
Rating:
Not yet rated.
Tristen Fielding
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(?<email>(?![ ])(\w|[.])*@(\w|[.])*) |
| Description |
E-mail addresses matcher |
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arnoldschwarz |
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Rating:
Not yet rated.
Manpreet Grewal
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^\W{0,5}[Rr]e:\W[a-zA-Z0-9]{1,10},\W[a-z]{1,10}\W[a-z]{1,10}\W[a-z]{1,10} |
| Description |
Simple email subject line matching. This regex matches those really annoying emails that begin with 0-5 spaces, followed by a fake reply, contain a random string of letters (usually CAPITALIZED) from 1-10 characters long followed by a comma, and then followed by three lower-case words each from 1-10 characters long. In my experience, the 3 trailing words are always lower-case. the words make begin with, contain, or end in common punctuation marks. |
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re: ASDFG, hours among lifestyle | Re: ASD34SSDF, i can't believe | Re: VZWENKS, the coffin brogade |
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re: ASDFGASFDASDF, Hours among lifestyle | Re: ASD34SSDF, I can't believe it's true |
| Author |
Rating:
Not yet rated.
Joseph Lundgren
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^[\w-]+(\.[\w-]+)*@([a-z0-9-]+(\.[a-z0-9-]+)*?\.[a-z]{2,6}|(\d{1,3}\.){3}\d{1,3})(:\d{4})?$ |
| Description |
Matches a valid email address including ip's which are rarely used. Allows for a-z0-9_.- in the username, but not ending in a full stop i.e [email protected] is invalid and a-z0-9- as the optional sub domain(s) with domain name and a 2-7 char (a-z) tld allowing for short tld's like ca and new ones like museum. |
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Not yet rated.
nick bennett
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^[a-z0-9][a-z0-9_\.-]{0,}[a-z0-9]@[a-z0-9][a-z0-9_\.-]{0,}[a-z0-9][\.][a-z0-9]{2,4}$ |
| Description |
for validate a email, but with this regex it 's possible : a._-z@a_.....____---.com |
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Not yet rated.
Laurent J
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^((?:(?:(?:\w[\.\-\+]?)*)\w)+)\@((?:(?:(?:\w[\.\-\+]?){0,62})\w)+)\.(\w{2,6})$ |
| Description |
Not a 100% email validation. It doesn't work with IP-Adresses, but it's good for most common cases. At least I hope so. |
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Not yet rated.
Sebastian Hiller
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^([\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". |
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Rating:
Not yet rated.
Laurence O'Donnell
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^((([a-zA-Z\'\.\-]+)?)((,\s*([a-zA-Z]+))?)|([A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})))(;{1}(((([a-zA-Z\'\.\-]+){1})((,\s*([a-zA-Z]+))?))|([A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})){1}))*$ |
| Description |
This regular expression matches a series of names and/or email addresses much like you would do in Outlook's To field (e.g. To: [email protected];miles, er;roemer;lagrander, nitra). The first entry must be a name (in the form of last name followed by a comma and first name) or an email address. The following entries are a semicolon followed by one name or email address. The comma and first name are optional components of the name part. |
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Not yet rated.
William Rohrbach
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| Expression |
\w+[\w-\.]*\@\w+((-\w+)|(\w*))\.[a-z]{2,3}$|^([0-9a-zA-Z'\.]{3,40})\*|([0-9a-zA-Z'\.]+)@([0-9a-zA-Z']+)\.([0-9a-zA-Z']+)$|([0-9a-zA-Z'\.]+)@([0-9a-zA-Z']+)\*+$|^$ |
| Description |
This regular expression is for admitting wild card searches on Emails the wild card character is * and in my case will only allow to do the search when the * is place after the first 3 alphanumeric characters. If you need to modify this behavior change the {3,40} to {n,m} where n is how many characters before the * and m is the total number if characters. |
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j* | js* |
| Author |
Rating:
Not yet rated.
Julio de la Yncera
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