Regular Expressions 101

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Community Patterns

1

Regex for e-mail verification

PCRE (PHP <7.3)
This regex checks if an email address is valid. It doesn't allow domain parts in the format [255.255.255.255]. It requires at least a domain and tld. (me@local is not allowed) It does allow quoted strings in the local part. It doesn't allow comments. Neither in the local nor in the domain part. It...
Submitted by anonymous - 9 years ago
1

apache log

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
2

IPv4 strict

PCRE (PHP <7.3)
Valid: 000.01.249.255 1.199.200.0 0.0.0.0 Invalid:...
Submitted by MaxusR - 9 years ago
0

International Aircraft Registration Prefixes

PCRE (PHP <7.3)
Tail numbers from http://www.skytamer.com/5.2.htm
Submitted by anonymous - 9 years ago
1

RIETUMU company name

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

UK Postcode matcher

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

To block Invoice virus attachment

Python
no description available
Submitted by Edgar Lozada - 9 years ago
1

TireLF

ECMAScript (JavaScript)
no description available
Submitted by Saad - 9 years ago
1

CS.com to C.org

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

PLZ Ort (German Zip-Codes and City names)

PCRE (PHP <7.3)
Erkennt alle deutschen Postleitzahlen inkl. der Ortsbezeichnung in Listen. Wenn man das Trennzeichen "\ " durch "(?:\ |\t)" ersetzt, werden auch Tabulator-getrennte Listen erkannt.
Submitted by Samoth - 9 years ago
1

sm subdomains

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

Bible verse, biblical string in text

ECMAScript (JavaScript)
Matches biblical strings in text. Two capture groups are used - one for the books name and another for the passages of the same book. RegEx is long because it is strict!!! If you want to also match books names without specified chapter and verses use: /((?:[1234]\s?)?[a-zа-я]+)(\s?\d+(?::(?:\d+[—–-...
Submitted by Desislavsd - 9 years ago
1

Cyrillic URLs

Python
Matches domain name of URL, supports standart and Cyrillic IDN URLs
Submitted by MrYodda - 9 years ago
1

[A-Z][0-9][a-z]

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1

Match x86 architectures

PCRE (PHP <7.3)
Matches any uname machine string for x86 architectures. Developed for https://github.com/P-H-C/phc-winner-argon2/pull/113
Submitted by @ranisalt - 9 years ago
1

Find multiline links a HTML tag

Python
Find multiline links a HTML tag
Submitted by CyberLight - 9 years ago
1

VS2015 - Property to object

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

Addresses for Dogs

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

exclude a list of words

Python
exclude a list of words, in this case, "hello" and "you"
Submitted by Z - 9 years ago
1

FreeCodeCamp RegEx1

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1...727728729730731...902

Community Library Entry

1

Regular Expression
Python

r"
(?:http(?:s?)://)?(?:[\w]+\.)+[a-zA-Z]+(?::\d{1,5})?
"
gm
Open regex in editor

Description

Finda a domain or a url, with ot without a port in a string. Includes http and https

Submitted by Shmuel Blitz - 9 years ago