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. its 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)
