Regular Expressions 101

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Community Patterns

1

split URL in protokoll, domain, file(with path), parameter and anker

PCRE (PHP <7.3)
split URL in protokoll, domain, file(with path), parameter and anker
Submitted by Candyman1332 - 9 years ago
0

Match all html tags

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

Remove empty HTML tags

PCRE (PHP <7.3)
Removes empty HTML tags. Was needed for old input clean-up and to keep a HTML parses from crashing. Looking for improvement on bottom test.
Submitted by R. Sartorius - 11 years ago
0

DateTime: DD-MM-YYYY HH:mm:ss

PCRE (PHP <7.3)
Validate and Capture (in 1000-2999 range) Leap-Year Correct
Submitted by anonymous - 12 years ago
0

negated special characters

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

Twitter Hashtags

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

MAtch all lines starting with # to remove em

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

HTML color search

PCRE (PHP <7.3)
Searches for hex colors in HTML code.
Submitted by Barlean - 10 years ago
1

regular expression to avoid white spaces

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

json

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

Parse JSON key value

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

hostname

PCRE (PHP <7.3)
RFC 1123 compatible RegEx for a hostname (not a domain name), inspired by chapter 7.15 from Regular Expressions Cookbook.
Submitted by anonymous - 10 years ago
1

Any telephone number with at least 6 digits

PCRE (PHP <7.3)
Telephone number can come with extra characters to denote country, region, etc
Submitted by https://co.linkedin.com/in/andresfelipecardona - 10 years ago
1

Mac-address filtering

PCRE (PHP <7.3)
Trying to capture a mac-address structure
Submitted by R. van den Hoek - 9 years ago
1

First 3 words in sentence

PCRE (PHP <7.3)
no description available
Submitted by hjgabrielsen - 9 years ago
1

email regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

Matches when the string does not contain an exact word

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

french phone number (locale format)

PCRE (PHP <7.3)
little matcher for french phone number in locale format (example: 0231348228)
Submitted by Nolwennig - 10 years ago
0

Fully Qualified Domain Name FQDN

PCRE (PHP <7.3)
Fully qualified domain name validation
Submitted by ximbs - 9 years ago
1

Table Purgatory

PCRE (PHP <7.3)
A regex to find all nowrap text occurrences and name all the groups involved in preparation for a replacement pass
Submitted by Joe Hacobian - 12 years ago
1...2526272829...487

Community Library Entry

3

Regular Expression
Golang

`
(?i)^(?:([a-z0-9-]+|\*)\.)?([a-z0-9-]{1,61})\.([a-z0-9]{2,7})$
`
gm
Open regex in editor

Description

Validates subdomain, root domain, and wild card domains

Submitted by AnonymousDapper - 8 years ago