express
Expression: ^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})|([a-zA-Z0-9\-\.]+))\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$ Rating: 10 [ Rate]
Description: Email validator that adheres directly to the specification for email address naming. It allows for ...
Matches: [asmith@mactec.com], [foo12@foo.edu], [bob.smith@foo.tv] [ More Details]
Non-Matches: [joe], [@foo.com], [a@a] [ Test Expression]
Submitted By: Andy Smith (asmith@mactec.com)
Expression: ^\d{1,2}\/\d{1,2}\/\d{4}$ Rating: 4 [ Rate]
Description: This regular expressions matches dates of the form XX/XX/YYYY where XX can be 1 or 2 digits long an...
Matches: [4/1/2001], [12/12/2001], [55/5/3434] [ More Details]
Non-Matches: [1/1/01], [12 Jan 01], [1-1-2001] [ Test Expression]
Submitted By: Steven Smith (ssmith@aspalliance.com)
Expression: ^[a-zA-Z]{1,2}[1-9][0-9]{0,1} {0,1}[1-9][A-Za-z]{2}$ Rating: 4 [ Rate]
Description: Matches UK postcodes
Matches: [G1 1AA], [EH10 2QQ], [SW1 1ZZ] [ More Details]
Non-Matches: [G111 1AA], [X10 WW], [DDD 5WW] [ Test Expression]
Submitted By: Dave Sparks (dave.sparks@cedalion.co.uk)
Expression: /\*[\d\D]*?\*/ Rating: 2 [ Rate]
Description: If you need to extract or remove any /* */ sytle comments from any Java, JavaScript, C, C++, CSS, e...
Matches: [/* my comment */], [/* my multiline comment */], [/* my nested comment */] [ More Details]
Non-Matches: [*/ anything here /*], [anything between 2 seperate comments], [\* *\] [ Test Expression]
Submitted By: Chris Craft (cjcraft@mail.com)
Expression: ^\d{5}-\d{4}|\d{5}|[A-Z]\d[A-Z] \d[A-Z]\d$ Rating: 2 [ Rate]
Description: This expression matches three different formats of postal codes: 5 digit US ZIP code, 5 digit US ZI...
Matches: [44240], [44240-5555], [G3H 6A3] [ More Details]
Non-Matches: [Ohio], [abc], [g3h6a3] [ Test Expression]
Submitted By: Steven Smith (ssmith@aspalliance.com)
Expression: ^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$ Rating: 2 [ Rate]
Description: RegExp for validating the format of IP Addresses. This works great with the ASP.NET RegularExpressi...
Matches: [127.0.0.1], [255.255.255.0], [192.168.0.1] [ More Details]
Non-Matches: [1200.5.4.3], [abc.def.ghi.jkl], [255.foo.bar.1] [ Test Expression]
Submitted By: G. Andrew Duthie (graymad@att.net)
Expression: ^\w+[\w-\.]*\@\w+((-\w+)|(\w*))\.[a-z]{2,3}$ Rating: 2 [ Rate]
Description: Email validation. With this short expression you can validate for proper email format. It's short...
Matches: [bob-smith@foo.com], [bob.smith@foo.com], [bob_smith@foo.com] [ More Details]
Non-Matches: [-smith@foo.com], [.smith@foo.com], [smith@foo_com] [ Test Expression]
Submitted By: Eric Lebetsamer (edl2@hotmail.com)
Expression: ^#?([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?$ Rating: 2 [ Rate]
Description: Tests for valid HTML hexadecimal color codes. The # symbol is optional. And it will except either t...
Matches: [#00ccff], [#039], [ffffcc] [ More Details]
Non-Matches: [blue], [0x000000], [#ff000] [ Test Expression]
Submitted By: Chris Craft (cjcraft@mail.com)
Expression: (\w+)\s+\1 Rating: 1 [ Rate]
Description: This expression uses a BackReference to find occurrences of the same word twice in a row (separated...
Matches: [hubba hubba], [go go], [12 12] [ More Details]
Non-Matches: [may day], [gogo], [1212] [ Test Expression]
Submitted By: Steven Smith (ssmith@aspalliance.com)
Expression: ^\d$ Rating: 1 [ Rate]
Description: Matches exactly 1 numeric digit (0-9).
Matches: [1], [2], [3] [ More Details]
Non-Matches: [a], [324], [num] [ Test Expression]
Submitted By: Steven Smith (ssmith@aspalliance.com)