Regular Expressions 101

Order By

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

Community Patterns

2

Port validator

Python
Validates port numbers from 1 to 65535
Submitted by Agustín Bouillet - 9 years ago
2

Azure ARM Template Parameter Override breakdown

PCRE (PHP <7.3)
This script helps you take the ARM template parameter override line from VSTS and break each variable combo down to its own line.
Submitted by Paul Daly - 9 years ago
2

Azure ARM Parameter Override Reconstuct

PCRE (PHP <7.3)
This helps you take a list of ARM parameters where each pair is on its own line and combine them back to a single line so you can place them in VSTS's ARM template parameter override field.
Submitted by Paul Daly - 9 years ago
2

parse username with @ mention

PCRE (PHP <7.3)
no description available
Submitted by Laracasts - 9 years ago
2

Brazilian number phone

PCRE (PHP <7.3)
no description available
Submitted by Marcos André - 8 years ago
2

Regex tutorial

Java 8
Case insensitive match the whole word betwween \bword\b
Submitted by anonymous - 4 years ago (Last modified a year 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

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

Task 4 Quiz

PCRE2 (PHP >=7.3)
It needs a major modification, since matching an integer is required. The accepted answer \d+ involves only "positive" integers. But -333 or +777 are also integers, which leads to two possible solutions with the last one being the most accurate: -?\d+ : The hyphen (optional minus sign) and a digit...
Submitted by seQuienSoy - 2 years ago
2

Mime type parser

.NET 7.0 (C#)
A "simple" regex to parse mime types. Handles all commonly occurring parts of a mime type string such as: Type Subtype Subtype's with an extra extension (e.g. svg+xml) (Optional input) Multiple parameters (Optional input)...
Submitted by Vespion - 2 years ago (Last modified 2 years ago)
2

Discord Username (old & new)

PCRE2 (PHP >=7.3)
Accomodate for Discord's username changeover and match against either the old username or the new username. But only one or the other. Match: CesarHvl#9000 cesarhvl cesar.hvl...
Submitted by cesarhvl - a year ago
2

URI Parser

ECMAScript (JavaScript)
A simple parser to exact all the components of a URI/URL as named groups
Submitted by Vespion - a year ago (Last modified a year ago)
1

phone test

PCRE (PHP <7.3)
no description available
Submitted by cool guy - 11 years ago
1

Date-Validation with mm/dd/yyyy or mmddyyyy or mm-dd-yyyy or m/d/yyyy

ECMAScript (JavaScript)
Date Validation with leap year handling, & it takes care of date validation in the format like :mm/dd/yyyy or mmddyyyy or mm-dd-yyyy or m/d/yyyy or m-d-yyyy. 12/01/1986 02/29/2016 02/29/2015 13/31/1986...
Submitted by Ashish - 9 years ago
2

HTTP url parser

PCRE (PHP <7.3)
Parses a URL to the different parts
Submitted by AmitK - 10 years ago
2

SFTP or FTP url

PCRE (PHP <7.3)
Parse an SFTP or FTP url and brak it into named capture groups.
Submitted by Cullen Johnson - 10 years ago
2

find numeric groups in strings

PCRE (PHP <7.3)
no description available
Submitted by Vovan - 10 years ago
2

Currency Amount

PCRE (PHP <7.3)
Format: x0.00 Valid: 13.37 4.20 1.00...
Submitted by anonymous - 10 years ago
2

Any number between 0 and 10 with 0 or 1 decimal places

PCRE (PHP <7.3)
Matches any number between 0 and 10 (inclusive) with 0 or 1 decimal places. Note that .5 will NOT be matched but 0.5 will. Also 10.X will not be matched, but 10 will.
Submitted by Matt Coubrough - 10 years ago
2

Currency amount without currency symbol

PCRE (PHP <7.3)
Matches numbers that are likely to by financial amount. Does not consider the type of currency.
Submitted by elgehelge - 10 years ago
1...859860861862863...901

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
^[0-9]{3}[\ ]{0,1}[0-9]{3}[\ ]{0,1}[0-9]{4}$
/
Open regex in editor

Description

Accepts spaces or not 1234567890 123 456 7890

Submitted by Christopher Dufort - 10 years ago