Regular Expressions 101

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Community Patterns

7

Date and time format - ISO 8601

ECMAScript (JavaScript)
Matches ISO 8601 date formats
Submitted by Ettienne - 9 years ago
5

Hello world !

ECMAScript (JavaScript)
no description available
Submitted by Fedir RYKHTIK - 11 years ago
5

All href in a tag

PCRE (PHP <7.3)
Find all href in a tag
Submitted by Miron Yanovskiy - 11 years ago
6

ID003 device info

PCRE (PHP <7.3)
no description available
Submitted by sasjaq - 11 years ago
2

Positive Numbers greater than 0 with leading zeroes.

ECMAScript (JavaScript)
Accepts all positive numbers above 0. Accepts numbers with leading zeroes e.g.: 0123, 00123.
Submitted by Sandeep Ranka - 10 years ago
4

Capturing items from multiple lists using a single regex

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
0

Number with two max possible decimals

ECMAScript (JavaScript)
For float type inputs.
Submitted by Juanma - https://github.com/juanmaa1414 - 10 years ago
4

Complete imgur link regex

Python
This regex grabs all kinds of imgur links and groups them in meaningful names aswell. This way you have full flow-control in your python-scripts.
Submitted by Mio - 10 years ago
5

FIlename sanitization regular expression

PCRE (PHP <7.3)
Useful for filename sanitization. Matches invalid filename characters. Can be used in preg_replace() calls.
Submitted by FractalizeR@yandex.ru - 10 years ago
1

FQDN Fully Qualified Domain Name

PCRE (PHP <7.3)
Allow only two or more labels. Fix deprecated FQDN regexp not passing on test "dicas-l.com.br"
Submitted by Rafael Justo and Mauro Trajber - 9 years ago
4

Full e-mail validator

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
8

IP Address (with 0s)

ECMAScript (JavaScript)
Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255
Submitted by Ryan Plummer - 9 years ago
6

Validate Birth Date (d/m/Y)

PCRE (PHP <7.3)
From 1970 to 2015 Replace: (\d{4})$ for (19[7-9]\d|200-1)$
Submitted by Valdeir Santana - 9 years ago
4

Mask credit card

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

UK phone number

PCRE (PHP <7.3)
UK phone number
Submitted by Andrea SonnY - 9 years ago
9

Fiddler raw body to PHP array

PCRE (PHP <7.3)
no description available
Submitted by garsax - 9 years ago
7

Max - URL Extract

PCRE (PHP <7.3)
no description available
Submitted by Ayush - 9 years ago
4

Strip out domain extensions except for Microsoft .net technologies.

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 12 years ago
4

YouTube Grabber Cleanup

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
4

Match Brackets and anything inside

ECMAScript (JavaScript)
no description available
Submitted by andreayang - 11 years ago
1...678910...902

Community Library Entry

1

Regular Expression
Python

r"
\b(?P<date> (?P<day> (?:(?:0[1-9]|[12]\d|30)(?=[- :\.\/](?:04|06|09|11)))| (?:(?:0[1-9]|[12]\d|3[01])(?=[- :\.\/](?:01|03|05|07|08|10|12)))| (?:(?:0[1-9]|[12]\d)(?=[- :\.\/]02[- :\.\/]\d\d(?:([02468][048])|([13579][26]))) (?![- :\.\/]02[- :\.\/](?:([2468][1235679])|([13579][01345789])00)))| (?:(?:0[1-9]|1\d|2[0-8])(?=[- :\.\/]02[- :\.\/])) )[- :\.\/] (?P<month>0[1-9]|1[012])[- :\.\/] (?P<year>[1-9]\d{3}) )\b
"
gmx
Open regex in editor

Description

1000-9999 years '-', ' ', ':', '.', or '/' may be user as divider

Submitted by furren - 9 months ago