Regular Expressions 101

Order By

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

Community Patterns

1

URL and mailto

PCRE2 (PHP >=7.3)
RegExp to match valid URL of http://, https://, ftp://, and mailto: protocols
Submitted by Sergey Klinov - 4 years ago
1

Regex pattern for numeric values

Python
Positive number !
Submitted by Cheikh Saab Bouh SOW - 4 years ago
1

MAC Address

Python
Match mac address with :, -, ., or no dividers.
Submitted by Brandan Neises - 4 years ago
1

re_ip

PCRE (PHP <7.3)
match IP:port in text
Submitted by anonymous - 4 years ago
1

turkdevops

ECMAScript (JavaScript)
Türkiye Geliştirici Operasyonları
Submitted by anonymous - 4 years ago
1

Time duration from minutes to weeks suffixed by letter and whitespace separated

ECMAScript (JavaScript)
Brief Description Time duration from minutes to weeks suffixed by corresponding letter and whitespace separated. No unit of time can be omitted. Max values are enforced for minutes, hours, and days, and a max length for weeks. Case is ignored. The string should match completely from start to end. E...
Submitted by Dorin Popa - 4 years ago (Last modified 4 years ago)
1

Semantec Versioning

ECMAScript (JavaScript)
Various RegEx expressions that work with Semantic Versioning,
Submitted by Flemming Steffensen - 3 years ago
1

Match segmented paths with '\' and '/' escaped by '\'

Java 8
Match segmented paths with '\' and '/' escaped by '\'
Submitted by anonymous - 3 years ago
1

Swiss MWST

PCRE (PHP <7.3)
Swiss VAT Numbers
Submitted by igrokit - 3 years ago
1

shortcode wordpress

PCRE2 (PHP >=7.3)
Wordpress shortcode regular expression
Submitted by selik - 3 years ago
1

Flexible Name Matching

Python
Flexible Name Matching This algorithm will match name-formatted strings to a minimum accuracy of 3 correct characters per value. Firstname Lastname ...
Submitted by Gabriel Gagnon - 3 years ago
1

Regex_questions_detect

PCRE (PHP <7.3)
if a file has questions and answers, it can detect questions
Submitted by anonymous - 3 years ago
1

Validate name or last-name

ECMAScript (JavaScript)
Регулярное выражение. От 1 до 15 символов, включая пробелы, исключая спец символы. На любых языках.
Submitted by anonymous - 3 years ago
1

PHP Multiline Error Log

PCRE2 (PHP >=7.3)
Matches multiline entries (e.g. those containing exception stack traces or just multiline values) in a PHP error log produced by error_log().
Submitted by Anton Ukhanev - 3 years ago (Last modified 3 years ago)
1

Regex for chatbot to match & extract multiple command

ECMAScript (JavaScript)
Example: "/lowercase HELLO .:uppercase ::weather london" Match #1 prefix: / command: lowercase arguments: HELLO...
Submitted by CietstHydroxide - 3 years ago
1

Matching upto 255 number range

PCRE (PHP <7.3)
this is for matching integers from 0 to 255
Submitted by anonymous - 3 years ago
1

the_100_720p_hun-eng_sln

PCRE2 (PHP >=7.3)
rss filter, deluge, ncore Episodes and Seasons
Submitted by Klein - 3 years ago (Last modified 3 years ago)
1

MBI Format

Java 8
Medicare Beneficiary Identifier (MBI) Format https://www.cms.gov/medicare/new-medicare-card/understanding-the-mbi-with-format.pdf
Submitted by Chee Cheng - 3 years ago (Last modified 3 years ago)
1

Simple AWS ARN Regex

ECMAScript (JavaScript)
Simple AWS ARN Regex
Submitted by anonymous - 3 years ago
1

Persian words

PCRE2 (PHP >=7.3)
Regex for find persian letters in a string
Submitted by Hamed Faryabi - 3 years ago
1...788789790791792...900

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(?<=[\s\.\,\!\?\"\;\:]|^)(?=[A-Za-z']*?[bcdfghj-np-tvwxyzBCDFGHJ-NP-TVWXYZ])(?=[A-Za-z']*?[aeiouyAEIOUY'])(?:[A-Za-z](?:'?[A-Za-z]){2}|(?:'?[A-Za-z]){2}[A-Za-z])\b'?(?=[\s\.\,\!\?\"\;\:]|$)
/
gm
Open regex in editor

Description

finds any 3 letter words in a text

Submitted by anonymous - a year ago