Regular Expressions 101

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Community Patterns

-2

cron expression

ECMAScript (JavaScript)
This is a relaxed cron validation, meaning that any valid cron expression should pass this; but not anything that passes regex validation is a good cron expression. Used as preliminary validation in web ui. Supports all special characters. Includes seconds field.
Submitted by enlait - 10 years ago
-2

UK (Europe) DateTime

ECMAScript (JavaScript)
Validates input to match UK Date Time standard
Submitted by Bascoder - 10 years ago
-2

Validate credit card numbers

PCRE (PHP <7.3)
Visa, MasterCard, American Express, Diners Club, Discover, JCB
Submitted by www.regular-expressions.info/creditcard.html - 10 years ago
-2

IPv4

Python
allows for all legal IPv4 addresses
Submitted by anonymous - 10 years ago
-2

Twitter Date format

ECMAScript (JavaScript)
no description available
Submitted by hjgabrielsen - 10 years ago
-2

Expression that does not include a subexpression

PCRE (PHP <7.3)
Pattern that matches all expression that not include a subexpression. The subexpression could be replaced by a string.
Submitted by aquintas - 10 years ago
-2

Parse all adresses in href

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

Match words in a string

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

username in url

PCRE (PHP <7.3)
should start with letter follow by letters and numbers and (-) - zero or more can't start or finish with (-) can't have two or more consecutive (-) char
Submitted by Ali Azmoude - 9 years ago
-2

twitter ids

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

Select the numeric part of a price following an ascii dollar sign

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

JSON KEY VALUE

PCRE (PHP <7.3)
Get key value in json string
Submitted by Marcio Paiva Barbosa - 9 years ago
-2

Date format regex for ddMMMyyyy

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

twitter usernames

Python
no description available
Submitted by anonymous - 9 years ago
-2

finds the instance of two or more repeating letters

Python
no description available
Submitted by cp0153 - 9 years ago
-2

checklists item

Python
checklists item
Submitted by Tobias Hochgürtel - 9 years ago
-2

filter

Python
no description available
Submitted by anonymous - 9 years ago
-2

Word ending with colon

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

Mathematical Expressions

PCRE (PHP <7.3)
ValidatesMathematical Expressions. Ignores whitespace. Includes parenthesis matching.
Submitted by Jeremy Friesen - 9 years ago
-2

HTML <script> regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...56789...902

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
(?P<cdn_node_ip>\S+) - (?P<client_ip>\S+) - - \[(?P<date>\S+)\] "(?P<verb>\w+) (?P<url>\/(?P<delivery_type_code>\S+?)\/(?P<delivery_type>\S+?)\/(?P<bucket_id>\S+?)\/(?P<file_path>.*)) (?P<version>\S+) (?P<referrer_url>\S+)" (?P<status_code>\d+) (?P<content_length>\d+) (?P<bytes_transferred>\d+) (?P<duration>\d+) (?P<cached>-|\d+) "(?P<user_agent>.*?)" "(?P<ep_region_id>\d+) (?P<user_region_id>\d+) (?P<ep_pid>\d+) (?P<user_pid>\d+) (?P<hash_content>\S+)" "("|(?P<download_id>\d+) (?P<origin>\S+) (?P<retries>\d+) (?P<code>\d+) (?P<time>\d+) (?P<p2p>\d+)") (?P<host>\S+) (?P<request_id>\d+) (?P<http_request>\d+) (?P<cache_tier_name>\S+) (?P<layer>\d)
/
g
Open regex in editor

Description

add layer

Submitted by anonymous - 6 years ago