Regular Expressions 101

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Community Patterns

1

Locale ICU validator

PCRE (PHP <7.3)
Regexp to match against a icu locale string
Submitted by Sylvain Combes - 7 years ago
1

flush done

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 7 years ago
1

CMSC320 NASA Dirty Table Regex

PCRE (PHP <7.3)
https://cdaw.gsfc.nasa.gov/CME_list/radio/waves_type2.html
Submitted by anonymous - 7 years ago
1

Mail TIGF

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 7 years ago
1

Url include with negative lookbehind

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 7 years ago
1

Match on Valid IP

PCRE (PHP <7.3)
Match on VALID IP address anywhere in string.
Submitted by KyleV - 7 years ago
1

Match on phone number in any standard format

PCRE (PHP <7.3)
Match on a phone number in ANY standard phone number format.
Submitted by KyleV - 7 years ago
1

SIREN

PCRE (PHP <7.3)
SIREN for french business register number
Submitted by Maxime - 7 years ago
1

SIRET

PCRE (PHP <7.3)
Business register number for France SIRET
Submitted by Maxime - 7 years ago
1

RNA

PCRE (PHP <7.3)
French association register number RNA
Submitted by Maxime - 7 years ago
1

Word filter

ECMAScript (JavaScript)
This regex matches up with the word rape, even if accent marks are used.
Submitted by Ethan Lawrence - 7 years ago
1

Match HTML img elements with URL source

PCRE (PHP <7.3)
Matches all img tags that have a URL for the src attribute. Useful for updating all those links in your email templates, or where ever your using the \ tag
Submitted by Doom87er - 7 years ago
1

Meetup Event URL

ECMAScript (JavaScript)
Allowed URL patterns for Meetup.com events
Submitted by anonymous - 6 years ago
1

Replace for CSS

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 6 years ago
1

Check if string matches a valid CSS color (hex, rgb, rgba, hsl, hsla)

ECMAScript (JavaScript)
no description available
Submitted by Ioannis Potouridis - 6 years ago
1

Regex to group output of $(ip addr) interface

Python
For this task, I did not need inet6 (IPv6 stuff), so I left it out. The regex in its current state does not allow for that to be included without manually adding the entire second part
Submitted by anonymous - 6 years ago
1

Get SQL FROM

PCRE (PHP <7.3)
SELECT * FROM wp_users WHERE user_login = 'username'
Submitted by Lars Jansen - 6 years ago
1

IPV4 regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 6 years ago
1

toby regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 6 years ago
1

Extract columns names from any select query

Golang
This regex can capture any column name from a select query. Be the original name, like are named on table, renamed with a reserved word AS or even without explicit AS. Go on, and test with your query ;)
Submitted by Jefferson Gouveia - 6 years ago
1...232233234235236...900

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
^(?:(?<scheme>[^:\/?#]+):)?(?:\/\/(?<authority>[^\/?#]*))?(?<path>[^?#]*\/)?(?<file>[^?#]*\.(?<extension>[Jj][Pp][Ee]?[Gg]|[Pp][Nn][Gg]|[Gg][Ii][Ff]))(?:\?(?<query>[^#]*))?(?:#(?<fragment>.*))?$
/
gm
Open regex in editor

Description

Adaptation of RFC-3986 uri validation - https://tools.ietf.org/html/rfc3986

Validates that URL contains an image (jpg/jpeg/png/gif) reference whilst also allowing for queries Key parts of URL are captured in named groups The URL portion is also optional, so will validate just an image filename if required

Submitted by Norris - 6 years ago