Regular Expressions 101

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Community Patterns

0

Page Hangs in Chrome/Shows TIMEOUT on regex101.com

PCRE (PHP <7.3)
I have a regex like this: /^(A-Za-z0-9)([\.\_]?[A-Za-z0-9-]+)(\.[A-Za-z]{2,6})+(\/A-Za-z+)*$/ and I want to test the string like: webmail.google.com.qqqqqqqqqqqqqqqqqqq....... But it shows TIMEOUT. I know that string is invalid for given regex. But I do this because when I input this string and ma...
Submitted by sam - 10 years ago
2

e164 format

ECMAScript (JavaScript)
e164 format
Submitted by anonymous - 10 years ago
1

Url regex testing

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

date validation

ECMAScript (JavaScript)
Validation for date 2013.12.24 14:50
Submitted by axelprog - 10 years ago
0

Get all header tag (<hn>) in html file

PCRE (PHP <7.3)
This regex get all header tag in html file with tag included
Submitted by Aubin - 10 years ago
1

sad smiley

Python
looks for a sad smiley with a backslash
Submitted by @barraponto - 10 years ago
0

Regex Mobile Number Validation Code

PCRE (PHP <7.3)
no description available
Submitted by A.K. Asik - 10 years ago
2

replace only inner text without tag element

PCRE (PHP <7.3)
no description available
Submitted by A.K. Asik - 10 years ago
1

Simple Email Validation

ECMAScript (JavaScript)
Does not match everything, but good for a cross-platform validation filter.
Submitted by anonymous - 10 years ago
0

Telephone Number Simple

ECMAScript (JavaScript)
no description available
Submitted by Nemesarial - 10 years ago
1

sort -t "," -k4,4 -k1n,1 file_name

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

Capture 5 words either side of a match string

Python
no description available
Submitted by anonymous - 10 years ago
2

vk.com wall

PCRE (PHP <7.3)
Parse 123_123 http://vk.com/id82702078?w=wall82702078_3386 http://vk.com/wall82702078_3386 http://vk.com/club34073863?w=wall-34073863_28647 http://vk.com/wall-34073863_28647
Submitted by by xzotix - 10 years ago
3

TimezoneOffset

ECMAScript (JavaScript)
parses timezones in the format -08:00 or -8:0
Submitted by Neha Kadam - 10 years ago
2

PO Box Address Validation

PCRE (PHP <7.3)
no description available
Submitted by mrferos - 10 years ago
0

GUID

PCRE (PHP <7.3)
Dection of GUID
Submitted by anonymous - 10 years ago
1

Simple phone or email

ECMAScript (JavaScript)
True if user input mobile phone or email
Submitted by jiller - 10 years ago
2

#Set-Cookie:\\s+(?<cookie>[^=]+=[^;]+)#m regex explanation

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

Extract Metadata

PCRE (PHP <7.3)
no description available
Submitted by kai_desu - 10 years ago
1

Spanish NIE / NIF Validator

ECMAScript (JavaScript)
no description available
Submitted by Gauravity - 10 years ago
1...2526272829...902

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
\s[0-9]\s([A-Z]{2,3})([0-9\s]{4})\s([A-Z])\s\s([A-Z]{1,2})\s([0-9]{1,2})(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)\s\s([A-Z]{3})([A-Z]{3})\s([A-Z0-9]{3})\s(X|\s)\s([0-9]{2})([0-9]{2})\s([0-9]{2})([0-9]{2})(\s|\*)([A-Z]*)\s(.*)
/
g
Open regex in editor

Description

no description available

Submitted by anonymous - 9 years ago