Regular Expressions 101

Order By

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

Community Patterns

1

match a collection of usernames after tag 'users:' and between '[...]' and separated by commas

ECMAScript (JavaScript)
self explainatory title, usernames array must not contain any exotic character besides ,
Submitted by Lagoffre - 4 months ago
1

省市县 正则

PCRE2 (PHP >=7.3)
省市县
Submitted by anonymous - 4 months ago
1

NIR Sécurité Sociale en France

PCRE2 (PHP >=7.3)
Cette regex est un fork de celle-ci permettant de valider un numéro de sécurité sociale français et prenant en compte les cas spécifiques définis sur cette page Wikipedia
Submitted by Nicolas Jourdain - 4 months ago (Last modified 4 months ago)
1

Fonction.Code

PCRE2 (PHP >=7.3)
Fonction.Code
Submitted by Groupe 18 - 4 months ago (Last modified 4 months ago)
1

Extract Grasemonkey userscript metadata

PCRE2 (PHP >=7.3)
This regex uses groups to extract metadata from Grasemonkey/Tampermonky user scripts.
Submitted by pikapower9080 - 4 months ago
1

Minecraft whisper commands

PCRE2 (PHP >=7.3)
This regex lets you extract all the uses of the whisper command in Minecraft log files.
Submitted by anonymous - 4 months ago
1

CSS Selectors

PCRE2 (PHP >=7.3)
Captures CSS Selectors along with combinators
Submitted by Joseph R - 4 months ago
1

HTML attributes

ECMAScript (JavaScript)
Find specific HTML attributes
Submitted by Joseph R. - 4 months ago
1

1 lower 1 upper 1 special char, 8 to 18 chars...

PCRE2 (PHP >=7.3)
1 lower 1 upper 1 special char, 8 to 18 chars...
Submitted by anonymous - 4 months ago
1

Catch domains

Python
Catch domains from str. Details see TEST STRING
Submitted by Casey TSui - 4 months ago
1

snake_case

PCRE2 (PHP >=7.3)
snake_case
Submitted by Groupe 18 - 4 months ago (Last modified 4 months ago)
1

для haproxy kuma

PCRE2 (PHP >=7.3)
начало
Submitted by anonymous - 4 months ago
1

IP address without local

.NET 7.0 (C#)
Matches IP addresses excluding local addresses
Submitted by pvl_zh - 4 months ago
1

Operations between integers

PCRE2 (PHP >=7.3)
Detect operations between integers (12^-3) and split them into three capture groups: lhs: 12 op : ^ rhs: -3 `
Submitted by benetsugarboy - 4 months ago
1

ORCID iD

Python
The ORCID ID (16-digit identifiers) format checker. Reference: Format of the ORCID iD
Submitted by Ken Lui - 4 months ago
1

.NET CSV parser

.NET 7.0 (C#)
Parses CSV files using comma (,) as delimiter and double quote (") as quoted-field tag. Features: Respects empty fields, including at the beginning and at the end of the line Respects line breaks in quoted fields
Submitted by kevinhp - 4 months ago
1

Expression for calculator`s memory

PCRE2 (PHP >=7.3)
variable should be only letters = variable almost in the memory or the value including negative
Submitted by Breathe of fate - 4 months ago
1

RFC3339 Validator

PCRE (PHP <7.3)
RFC3339 Validator
Submitted by anonymous - 4 months ago (Last modified 4 months ago)
1

Inverse attribute search on elements/components

PCRE2 (PHP >=7.3)
Finds elements/components without a specific prop/attribute
Submitted by anonymous - 4 months ago
1

Email Validation with TLD Restriction:

PCRE2 (PHP >=7.3)
elegenttech.com
Submitted by anonymous - 4 months ago
1...840841842843844...902

Community Library Entry

1

Regular Expression
Rust

r#"
(?:(?:import|export)[^`'"]*from\s+[`'"])(?<from>[^`'"./][^`'"]*)(?:[`'"])|(?:\bimport)(?:\s+|\s*\(\s*)(?:[`'"])(?<plain>[^`'"./][^`'"]*)(?:[`'"])
"#
gm
Open regex in editor

Description

This regex can be used on a JavaScript/TypeScript file to find imports from third-party packages. This is useful for determining what to put in dependencies/peerDependencies. This is a Rust regex, which makes it easy to use with rg (ripgrep). Pro tip: combine rg with sort -u to get a list of all packages for your JS/TS project!

Based on a similar PCE2 regex

Submitted by Nikita Karamov - 6 months ago