Regular Expressions 101

Order By

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

Community Patterns

-1

alluse

PCRE (PHP <7.3)
/^(?P0|[1-9]\d)\.(?P0|[1-9]\d)\.(?P0|[1-9]\d)(?:-(?P(?:0|[1-9]\d|\da-zA-Z-)(?:\.(?:0|[1-9]\d|\da-zA-Z-))))?(?:\+(?P[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/gm
Submitted by alluse - 2 years ago
0

semantic tags

PCRE (PHP <7.3)
semantic tags
Submitted by anonymous - 2 years ago
-2

Parsing result of SQL Server version (SELECT @@VERSION)

.NET 7.0 (C#)
Parses MS SQL Server version returned from executing SELECT @@version
Submitted by M Rivas - 2 years ago
0

Function arguments regex

PCRE (PHP <7.3)
A simple regex to match individual arguments of a function.
Submitted by anonymous - 2 years ago
0

Get ip address (only ipv6) Validator

.NET 7.0 (C#)
Get ip address (only ipv6) Validator
Submitted by Mr.Tang - 2 years ago (Last modified 2 years ago)
0

Get ip address (only ipv4) Validator

.NET 7.0 (C#)
Get ip address (only ipv4) Validator
Submitted by Mr.Tang - 2 years ago (Last modified 2 years ago)
0

Get anything between parentheses

PCRE (PHP <7.3)
Use to get any character, digit or space between parentheses
Submitted by Vini Pereira - 2 years ago
-2

PHP Serialization String Validator

PCRE (PHP <7.3)
PHP serialize / unserialize __sleep __wakeup __serialize __unserialize
Submitted by Abdullah Pazarbasi - 2 years ago
0

Closes properly self-closing tags in HTML

PCRE (PHP <7.3)
In an HTML will replace all auto-closed tags (/>) with a proper tag closing. It works even if the tag has a closing sign (>) inside an attribute.
Submitted by nabab - 2 years ago
0

Remove all html from string

PCRE (PHP <7.3)
Remove all tags and special character such as &nbsp;
Submitted by enrico mosca - 2 years ago
0

Replace letters in email address

PCRE (PHP <7.3)
Replace letters in email address but left the first and last letter before and after @
Submitted by Kaibo - 2 years ago
0

Search/Replace Pressure sensor calibration

PCRE (PHP <7.3)
Changing from MPa to Bar
Submitted by anonymous - 2 years ago
0

Find GraphQL queries with missing id

PCRE (PHP <7.3)
It detects the following ` product { brand` and ignores ` product {...
Submitted by anonymous - 2 years ago
0

Reverse list of ASN.1 OIDs/Short Names/Long Names for X.509 certificates under OpenSSL

PCRE (PHP <7.3)
OIDs are just numbers in the format 1.2.3.4.5.6.7.8.9... Short names are alphanumeric, contiguous descriptions (no spaces, hyphens allowed) Long names can be basically everything (sometimes even UTF-8!) Sometimes, organisations providing the list of 'their' OIDs might reverse the order, for listing...
Submitted by Gwyneth Llewelyn - 2 years ago
0

Phone number Malaysia RegEx

PCRE (PHP <7.3)
A regular expression of Malaysian phone number I made to be used on a project using flutter.
Submitted by anonymous - 2 years ago
0

SAP_ECTR_ID

PCRE (PHP <7.3)
Gets the base ID of the ECTR ID when using copy and paste.
Submitted by Peter - a year ago
0

i++ in bash

PCRE (PHP <7.3)
asdf
Submitted by anonymous - a year ago
0

Example 1.1: Pet Name

PCRE (PHP <7.3)
Example used in slide 39
Submitted by anonymous - a year ago
0

domain name with subdomains

PCRE (PHP <7.3)
should match any domain with one or more subdomains
Submitted by Igor Tiulkanov - a year ago
0

Unicode Hexadecimal

Rust
Find hexadecimal numbers using Extended Unicode Support.
Submitted by anonymous - a year ago (Last modified a year ago)
1...464465466467

Community Library Entry

0

Regular Expression
.NET 7.0 (C#)

@"
^(?=(?<http>(?:https?:\/\/){1}(?:www\.)?)?)(?(?=\k<http>?(?<ipaddr>(?:\d{1,3}\.){3}\d{1,3}(?:\:\d{1,5})?))\k<http>?\k<ipaddr>(?:\.[\w]{1,9})?|\k<http>(?:[\w]\.?){1,255}\.[\w]{1,9})(?:\/.*)?$
"
gm
Open regex in editor

Description

Can be used to validate on URL's.

Submitted by anonymous - a year ago