Regular Expressions 101

Order By

Filter by Flavor

Sponsors

There are currently no sponsors. Become a sponsor today!

Community Patterns

Search among 18,000 community submitted regex patterns...

1

convert any youtube video link to an embed in iframe

PCRE2 (PHP >=7.3)

supports all link formats

Submitted by 1Mouse - a year ago

1

Email Regex

PCRE2 (PHP >=7.3)

Email address: RFC 2822 Format Matches a normal email address. Does not check the top-level domain. Copied from: https://stackoverflow.com/a/16168103/4640611

Submitted by anonymous - a year ago

1

Quartz .NET Cron Schedule Validation

PCRE2 (PHP >=7.3)

Matches a list of cron expressions which are valid in the Quartz .NET library Quartz Net Cron Expression

Submitted by Michael Robertson - a year ago (Last modified a year ago)

1

Glyph name Bulgarian local form

PCRE2 (PHP >=7.3)

replace .bgr with cyr_BGR in replace string

Submitted by anonymous - a year ago

1

force download file (HTML5)

PCRE2 (PHP >=7.3)

This regex is written for a Joomla plugin. This REGEX force to DOWNLOAD à PDF file instead of showing PDF in browser

Submitted by Sébastien LHUILLIER - a year ago

1

Initializing identifiers

Initializing identifiers

Submitted by anonymous - a year ago

1

Rust type-like ident casing

Matches built-in primitives and identifiers with casing conventionally used for type/constant names.

Submitted by Neel Yadav - a year ago

1

blek! File ResourceD resource regex

PCRE2 (PHP >=7.3)

Used in https://git.blek.codes/blek/bfile

Submitted by anonymous - a year ago

1

Domain name validator

PCRE2 (PHP >=7.3)

Validates domain names. Support https:// or http:// prefix.

Submitted by ._thunderstrike - a year ago

1

Remove ANSI Escape Code

Remove ANSI Escape Code

Submitted by diaogong - a year ago

1

Simple path detector

PCRE2 (PHP >=7.3)

Detect paths under Windows format.

Submitted by ._thunderstrike - a year ago

1

instagram url

gets the url instagram

Submitted by samuel06santos - a year ago

1

Match morse code

ECMAScript (JavaScript)

This matches morse code input and leaves word break spaces

Submitted by Ember - a year ago

1

Folders

PCRE2 (PHP >=7.3)

Submitted by anonymous - a year ago

1

Files

PCRE2 (PHP >=7.3)

Submitted by anonymous - a year ago

1

Функции с сайта

PCRE2 (PHP >=7.3)

Submitted by anonymous - a year ago

1

Unicode Mixed Case Word Detector

PCRE2 (PHP >=7.3)

Detects mixed case words using Unicode

Submitted by Hooge - a year ago

1

regex vietnam number phone

PCRE2 (PHP >=7.3)

regex phone number all telco in Vietnam. at 11/08/2023

Submitted by hao.nguyen - a year ago

1

Translations Regex

PCRE2 (PHP >=7.3)

Traduções pra ajudar a encontrar as mensagens em cada caso

Submitted by anonymous - a year ago

1

URL Checker

ECMAScript (JavaScript)

Allows to extract or check if the text includes different URLs, allowing for you to check different kinds of links from the simple ones up to the more complex ones that includes prefix, subdomain, domain, entire website name and subpages.

Submitted by kyunishya - a year ago

1...821 822 823 824 825...900

Community Library Entry

0

Regular Expression
ECMAScript (JavaScript)

/

^(?:(?=[^:\/]{4,253})(?!-)[a-zA-Z0-9-]{1,63}(?<!-)(?:\.(?!-)[a-zA-Z0-9-]{1,63}(?<!-))*(?::[0-9]{1,5})?\/)?((?![._-])(?:[a-z0-9._-]*)(?<![._-])(?:\/(?![._-])[a-z0-9._-]*(?<![._-]))*)(?::(?![.-])[a-zA-Z0-9_.-]{1,128})?$

/

Open regex in editor

Description

javascript regex for docker image tag name from doc

Submitted by ahmad safari - 2 years ago