Regular Expressions 101

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Community Patterns

Search among 18,020 community submitted regex patterns...

HTML PrimeNG (replace) empty opening and closing tags (into to self closed tags)

PCRE2 (PHP >=7.3)

This regular expresion matches opening and closing empty tags from PrimeNG library. This can be useful to replace it for self-closed tags which is available from Angular v15. Replacer: ``

Submitted by https://sergiorey23.github.io/ - 17 days ago (Last modified 17 days ago)

UUID v7 Matching

PCRE2 (PHP >=7.3)

UUID v7 Resources: https://uuid7.com/ https://uuid.ramsey.dev/en/stable/rfc4122/version7.html https://www.ietf.org/archive/id/draft-peabody-dispatch-new-uuid-format-04.html#name-uuid-version-7 ...

Submitted by Regex by Ignacio del Corro / cxto21 - 19 days ago (Last modified 16 days ago)

Words that are only sequences of Chemical Element Symbols, allowing smushes

PCRE2 (PHP >=7.3)

This will match only words that include chemical elements: H + Og + W + Ar + Ts but not Eton. It allows internal overlap: LaG = La + Ag, and allows the first letter or last letter to be the end/start of a symbol to allow chaining. You can easily remove the various pieces, though. A single-line (non...

Submitted by mrflip - 20 days ago (Last modified 20 days ago)

Validate a comma separated list of IPv4 addresses, CIDRs, or IPv4 Ranges like 1.1.1.1-1.1.1.10

Golang

Simple Regex to *validate * (no extraction!) an IPv4 Range which can be a comma separated mixture of IPv4 addresses IPv4 CIDRs IPv4 Ranges like 1.1.1.1-1.1.1.10 Examples : ...

Submitted by alucab - 25 days ago

test

ECMAScript (JavaScript)

testing

Submitted by madgregory - a month ago

1 2 3...901

Community Library Entry

Regular Expression
PCRE2 (PHP >=7.3)

^(8|\+7)(\s|$|-)?(\d{3})(\s|$|-)?(\d{3})(\s|-)?(\d{2})(\s|-)?(\d{2})$

Open regex in editor

Description

A regular expression for searching for phone numbers in the Russian format, taking into account different ways of writing the number, including spaces, brackets and dashes.

Регулярное выражение для поиска номеров телефонов Российского формата. Учитывает написание номера через пробел, скобки, тире и без таковых

Submitted by https://t.me/ds_ivanov - a month ago

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Community Patterns

Canadian Postal Code Validation

Extract links from text

Telephone number validation

Repeated characters

Regex for Matching Documentation Websites

CIMTS business situation

Any Unicode dash or its HTML escaped version

simple email checker

Finite automata Definition

Finite automata definition

Set of Finite Automata final states

english sentence tokenizer

Clean unnecessary white spaces from JSON

Match router

html tokenizer v1

HTML PrimeNG (replace) empty opening and closing tags (into to self closed tags)

UUID v7 Matching

Words that are only sequences of Chemical Element Symbols, allowing smushes

Validate a comma separated list of IPv4 addresses, CIDRs, or IPv4 Ranges like 1.1.1.1-1.1.1.10

test

Community Library Entry

Regular ExpressionPCRE2 (PHP >=7.3)

Description

A regular expression for searching for phone numbers in the Russian format, taking into account different ways of writing the number, including spaces, brackets and dashes.

Regular Expression
PCRE2 (PHP >=7.3)