Regular Expressions 101

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Community Patterns

2

Guid (with or without dashes)

ECMAScript (JavaScript)
Matches a guid string that can optionally include dashes.
Submitted by anonymous - 3 years ago
2

US phone number

PCRE2 (PHP >=7.3)
US phone number, try to catch as many as possible
Submitted by anonymous - 3 years ago
2

.htaccess wordpress redirect uploads to production domain

PCRE2 (PHP >=7.3)
.htaccess wordpress redirect uploads to production domain
Submitted by anonymous - 3 years ago
2

spring logback parser

PCRE2 (PHP >=7.3)
Spring boot logback 日志正则匹配。 样例日志 2019-12-27 13:52:38.201 INFO 1 --- [Thread-8] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default' 2019-12-27 13:52:39.535 INFO 1 --- [Thread-8] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} closed ...
Submitted by LiuDecai - 3 years ago
2

Regex for real number

ECMAScript (JavaScript)
this regex can detect any real number whether it is signed or unsigned.plus it can detect real number both with and without floating point aka '.'.the numbers should be decimal number
Submitted by Adnan nabib - 3 years ago
2

Regex for complex number

ECMAScript (JavaScript)
it can detect complex number of both cartesian and Euler form.the real number in the real and imaginary part can be signed or unsigned.also it may or may not have floating Point.no problem. But,in Euler from the imaginary part should be written between brackets.here are some example:- +5.6+7i,-.004...
Submitted by Adnan nabib - 3 years ago
2

Mobile Number Regex

PCRE2 (PHP >=7.3)
The following regex validates international mobile numbers
Submitted by anonymous - 3 years ago
2

Email Extractor

PCRE2 (PHP >=7.3)
([a-zA-Z0-9.-]+@[a-zA-Z0-9.-]+\.[a-zA-Z0-9_-]+)
Submitted by Kashif - 3 years ago
2

yyyy/mm/dd

Java 8
^(((\d{3}[1-9]|\d{2}[1-9]\d|\d[1-9]\d{2}|[1-9]\d{3})(\/)(((0[13578]|1[02])(\/)(0[1-9]|[12]\d|3[01]))|((0[469]|11)(\/)(0[1-9]|[12]\d|30))|(02(\/)(0[1-9]|[1]\d|2[0-8]))))|(((\d{2})(0[48]|2468|13579)|((0[48]|2468|3579)00))(\/)02(\/)29))$ Match year/month/day, date format. E.g: 2021/08/25 [match] 2021/...
Submitted by mayl0421 - 3 years ago
2

Html tag parser

PCRE2 (PHP >=7.3)
This regex will help you to parse html tag. Example ...
Submitted by denchiklut - 3 years ago
2

JavaScript semicolon adder

ECMAScript (JavaScript)
This is a regex to use on JavaScript code that is missing semicolons
Submitted by samunemeth - 3 years ago
2

Check Phone numbers

PCRE2 (PHP >=7.3)
Other patterns
Submitted by https://joserobinson.com - 3 years ago
2

Match Javanese Script Syllable

PCRE2 (PHP >=7.3)
Match any syllable based on javanese script unicode
Submitted by anonymous - 3 years ago (Last modified 3 years ago)
2

RFC1918 - Private IPv4 addresses

PCRE2 (PHP >=7.3)
Validate a given IP v4 address against all three defined Private IPv4 Subnets as statet in RFC1918 10.0.0.0/8 172.16.0.0/20 192.168.0.0/16 ...
Submitted by 0100101101001 - 3 years ago
2

Get commands from Neebula Discovery Language NDL

ECMAScript (JavaScript)
Matches the commands from Neebula Discovery Language NDL, which is used in ServiceNow Discovery Patterns.
Submitted by James Griffith - 3 years ago (Last modified 3 years ago)
2

Grabify URL Detector

PCRE2 (PHP >=7.3)
Detects any Grabify IP tracker links
Submitted by ShadowNox - 3 years ago
2

UUID 4

PCRE2 (PHP >=7.3)
Detects any UUID 4 strings
Submitted by ShadowNox - 3 years ago
2

CSS Colors: RGB(A), HSL(A), HEX(3,4,6,8), var(--tw-color), etc...

ECMAScript (JavaScript)
Versatile, multiline matching of CSS colors of many common formats, including: [x] HEX-3: #123 (equivalent to #112233) [x] HEX-4: #FA0F ( ... #FFAA00FF) [x] HEX-6: #FF3300 ( ...#F30) [x] HEX-8: #FFAA00FF ( ...#FA0F)...
Submitted by Nicholas Berlette (@nberlette) - 3 years ago
2

Svelte: CSS class attribute (Svelte or HTML friendly), class:directive, TailwindCSS classes, and @apply.

ECMAScript (JavaScript)
SvelteComponent Class Directive Matching Also supports TailwindCSS-style @apply directive for the class value. class:directive={boolean} ...
Submitted by Nicholas Berlette (@nberlette) - 3 years ago
2

GitHub bare url to org/repo Markdown

PCRE2 (PHP >=7.3)
Convert a bare url into organization/repo format in a Markdown link.
Submitted by anonymous - 3 years ago
1...877878879880881...902

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
^(?:0*(?:25[0-5]|2[0-4]\d|1?\d{1,2})\.){3}0*(?:25[0-5]|2[0-4]\d|1?\d{1,2})$
/
gm
Open regex in editor

Description

This regex matches every IPv4 address with or without 0s before every number.

For example: 192.168.1.1 00000000000192.168.00000000000001.01

Submitted by anonymous - 4 years ago