Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

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
2

Markdown Heading

Java 8
Parses the text following a '#' and a space all the way up to the next return character. Additional #'s can be added for parsing of other type of headings!
Submitted by Hansen - 3 years ago
2

Simple URL

ECMAScript (JavaScript)
Validate an URL input.
Submitted by @nuragic - 3 years ago
2

Currency with dollar sign, two decimals, negative allowed, starting with period ok

ECMAScript (JavaScript)
Currency with dollar sign, two decimals, negative allowed, starting with period ok
Submitted by Natalia Zolotareva - 3 years ago
1

tiktok video id

ECMAScript (JavaScript)
get tiktok video id https://m.tiktok.com/h5/share/usr/6641141594707361797.html https://m.tiktok.com/v/6749869095467945218.html https://www.tiktok.com/@cchelseam..eow/video/6751181801206729990 https://www.tiktok.com/embed/6567659045795758085...
Submitted by threedot - 2 years ago
1

<input type="week" /> pattern

ECMAScript (JavaScript)
As 'week' input doesn't have a [pattern] attribute, you can check its value with this RegExp. Does not check if the given year has 52 or 53 weeks.
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

<input type="datetime-local" /> pattern

ECMAScript (JavaScript)
As 'datetime-local' input doesn't have a [pattern] attribute, you can check its value with this RegExp. Does not check if the given day corresponds to its month . Ex : 2019-02-30 will be considered as correct
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

<input type="date" /> pattern

ECMAScript (JavaScript)
As 'date' input doesn't have a [pattern] attribute, you can check its value with this RegExp. Does not check if the given day corresponds to its month. Ex : 1989-03-30 will be considered as correct
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

<input type="time" /> pattern

ECMAScript (JavaScript)
As 'time' input doesn't have a [pattern] attribute, you can check its value with this RegExp. You must provide hours and minutes. Seconds and milliseconds are optional. To "activate" seconds on the input, give it the step="" attribute with a number reprensenting the incrementation in seconds....
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

<input type="number" /> pattern

ECMAScript (JavaScript)
As 'number' is not implemented by all browsers, you can check your value with this RegExp.
Submitted by Ann MB - 3 years ago (Last modified 3 years ago)
1

Password - mot de passe

PCRE2 (PHP >=7.3)
1 caractère minuscule minimum 1 caractère majuscule minimum 1 chiffre minimum 1 caractère spécial minimum pas d'espace 8 caractères minimum en tout
Submitted by Sofiane - 2 years ago
1

Decimal (with dot)

ECMAScript (JavaScript)
Decimal with a dot, if has a dot it needs a number following it
Submitted by anonymous - 3 years ago
2

Extract parts of a URL on Python

Python
Extract parts of a URL on Python
Submitted by dixanms - 3 years ago
2

regex101.com id grabber

PCRE (PHP <7.3)
Grabs the ID for the regex101.com permalink to code.
Submitted by Sasha Garan - 3 years ago (Last modified 3 years ago)
2

Lua Enhanced: +=

Python
Adds += to Lua.
Submitted by anonymous - 3 years ago
2

Delete hour range

PCRE2 (PHP >=7.3)
Select duplicate a.m. - p.m range
Submitted by profeivan - 3 years ago
2

Asciidoc PlantUML Block

Java 8
Regex to select PlantUML Block in Asciidoc documents
Submitted by anonymous - 3 years ago
2

Pattern for usual email address

PCRE2 (PHP >=7.3)
Intentionally leaves out weird stuff such as IPV4 or IPV6 for the domain part and quoted usernames with invalid chars in the addressee part. Handles internationalized domains with soft validation (only structural matching) and blocks domain parts starting or ending with dashes or containing double d...
Submitted by Victor Schröder - 3 years ago
1

Türkiye Telefon Numarası Kontrolü

ECMAScript (JavaScript)
Türkiye'nin mobil telefonlarının desenini kontrol eder. Örneğin; 555-123-45-67 0 555 123 45 67 +905551234567...
Submitted by Furkan Rehber - 3 years ago
1...7172737475...902

Community Library Entry

2

Regular Expression
ECMAScript (JavaScript)

/
^(0((?:[\s\-./]?\d{2,3})+)|([+][1-9]\d{0,3})((?:[\s\-./]?\d{2,3})+))$
/
gm
Open regex in editor

Description

Phone numbers in Belgium.

  • The pattern does match with delimiters such as [\s./-]
  • No global length is checked
  • Accepts number starting by 0 for local dialing
  • Accepts number starting by +<national code> (+32 in these tests)
Submitted by anonymous - a year ago