Regular Expressions 101

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Community Patterns

-3

IPv4 address

Created·2016-04-06 17:12
Flavor·Python
Matches any IPv4 address
Submitted by anonymous
-3

TD data from html table

Created·2015-12-24 10:15
Flavor·Python
no description available
Submitted by Deepak Bansal
-3

Matches percentage with any number of digits

Created·2015-06-10 19:26
Flavor·Python
Only captures value for converting percentage to decimal. Returns empty if percentage but no value. no match = no percentage found
Submitted by sharkey
-3

Match substitutions

Created·2014-07-26 13:32
Flavor·Python
Match regular expressions substitutions, I personally use this to perform my validate if it is a substitution, then call re.sub() on it.
Submitted by Zarthus
-2

phone number

Created·2016-07-19 04:29
Flavor·Python
An extremely complete regex, that... Accepts international phones and most of regional phone numbers; Accepts phone numbers with/without "+", with/without space or "-" in the middle of the phone, and more. Gets groups of all important data of the phone number (local code, country code and the phone number itself)
Submitted by @thegamerbr1
-2

Email Validation

Created·2015-12-01 22:35
Flavor·Python
Full email validation with optional "." "-" "_"
Submitted by Jakub Stasiak
-2

match unescaped quotes

Created·2015-11-05 21:28
Flavor·Python
no description available
Submitted by anonymous
-2

adsf

Created·2015-11-01 11:11
Flavor·Python
adfadfad
Submitted by anonymous
-2

Between two strings

Created·2015-10-27 19:18
Flavor·Python
Awesome explanation of nested lookbacks
Submitted by OnlineCop
-2

match commas between sets or members, but not inside members.

Created·2015-10-23 16:41
Flavor·Python
matches only those commas that are between sets, or between members of a set. does not match commas that are inside members.
Submitted by Amrit Kohli
-2

Prosed OFX DateTimeType pattern for v.2.1.1+

Created·2015-09-06 02:10
Flavor·Python
no description available
Submitted by Oleg Sakharov karpuscul@gmail.com
-2

Validation of code ATECO Italian

Created·2015-08-19 12:09
Flavor·Python
/* -- This is a RegEx for validating one Italian ATECO code. -- For original specification visit: http://www.istat.it/it/archivio/17888 -- Valid: */ 1 01 01.2 01.02 01.02.3 01.02.03 // Not Valid: a asc 0123 012.3 013.456 123456 01/02/03
Submitted by Marco Tonchella with the help of this Comunity that thanks a lot.
-2

filter

Created·2015-07-18 07:55
Flavor·Python
no description available
Submitted by anonymous
-2

checklists item

Created·2015-07-15 13:25
Flavor·Python
checklists item
Submitted by Tobias Hochgürtel
-2

finds the instance of two or more repeating letters

Created·2015-07-10 19:34
Flavor·Python
no description available
Submitted by cp0153
-2

twitter usernames

Created·2015-07-10 11:15
Flavor·Python
no description available
Submitted by anonymous
-2

IPv4

Created·2015-06-19 13:07
Flavor·Python
allows for all legal IPv4 addresses
Submitted by anonymous
-2

Host and domains

Created·2015-06-10 18:44
Flavor·Python
no description available
Submitted by anonymous
-2

python bracketed text

Created·2015-01-27 21:53
Flavor·Python
why doesn't this match text in brackets?
Submitted by anonymous
-2

match only words consisting of 3 repeated letters, e.g. lllkkk

Created·2014-12-21 19:38
Flavor·Python
no description available
Submitted by kali
-2

five word capture

Created·2014-11-28 04:40
Flavor·Python
no description available
Submitted by anonymous
-2

link

Created·2014-10-06 11:34
Flavor·Python
no description available
Submitted by NTP-[SADAS]
-2

eee

Created·2014-09-24 14:21
Flavor·Python
no description available
Submitted by anonymous
-2

Basic grammar for regex matching of simplistic Makefiles

Created·2014-08-13 01:11
Flavor·Python
This expression should both normal and wildcard targets and rules wrapped in simple sub-shell or varriable substitution enclosures.
Submitted by Robert Butler <me@r-butler.net>
-2

example

Created·2014-07-28 21:44
Flavor·Python
match
Submitted by anonymous
-1

regex to check for buffer printing

Created·2023-04-11 11:16
Flavor·Python
This regex checks if c/c++ code contains char buffer that is later printed.
Submitted by tagoras
-1

Discord Mention

Created·2022-10-10 19:18
Updated·2022-10-10 19:19
Flavor·Python
Regex to check if a string is a discord mention
Submitted by anonymous
-1

test

Created·2021-10-09 10:23
Flavor·Python
d
Submitted by anonymous
-1

regex_crossover_restructure/renové

Created·2021-04-26 20:13
Flavor·Python
guif
Submitted by guif
-1

IP Address

Created·2020-11-06 15:23
Flavor·Python
no description available
Submitted by anonymous
-1

Breakdown of this/that

Created·2020-11-01 08:16
Flavor·Python
no description available
Submitted by anonymous
-1

Full or 3 letter abbreviated months

Created·2019-02-08 02:57
Flavor·Python
Matches with either the month or abbreviated 3 letter month name. No matching groups used
Submitted by Benargee
-1

Bluecoat Upstream ipv4-2

Created·2016-08-31 01:57
Flavor·Python
Log: Bluecoat Event Type: Upstream Ref to Json: "Sources/Bluecoat/ipv4-2
Submitted by anonymous
-1

emoticon

Created·2015-12-22 09:25
Flavor·Python
no description available
Submitted by Victor Huang
-1

GetDeviceIdFromAOR

Created·2015-12-21 13:26
Flavor·Python
no description available
Submitted by anonymous
-1

شش

Created·2015-11-23 14:07
Flavor·Python
no description available
Submitted by anonymous
-1

Integer or decimal number

Created·2015-10-30 12:30
Flavor·Python
no description available
Submitted by Rick de L
-1

localhost match range ip with port number

Created·2015-10-20 13:33
Flavor·Python
Matches all ips that points to localhost like, optionally capturing port number: 127.X.X.X and 127.X.X.X:
Submitted by Rodrigo M. A.
-1

xml

Created·2015-09-30 05:38
Flavor·Python
no description available
Submitted by anonymous
-1

Phone number validator

Created·2015-09-28 09:35
Flavor·Python
Validates all possible international phone number formats. Icludes almoust all of the international call prefixes, all of the differing lenghts of country codes. The parts of number will always be recognised correctly. Additionally you could add limitations of the phone number's lenght
Submitted by Ādams Muzikants
-1

mongo db email validation

Created·2015-09-02 09:30
Flavor·Python
email validation based on the restrictions for entering email adresses into a mongo db email field.
Submitted by levire.com
-1

IP address

Created·2015-08-31 20:41
Flavor·Python
Looks for string formated like an IP address.
Submitted by anonymous
-1

word_to_match

Created·2015-08-28 12:00
Flavor·Python
no description available
Submitted by anonymous
-1

Java single line comment matcher

Created·2015-08-26 21:21
Flavor·Python
This regex matches java line end comments started with "//" and ignores such ones that are within String literals. (NO SUFFICIENT TESTING WAS DONE TO GUARANTEE 100% SAFETY)
Submitted by Janis Schöck
-1

bibtex entries

Created·2015-08-21 21:46
Flavor·Python
match bibtex entries
Submitted by Sixue Qin
-1

date format for year 2000 above

Created·2015-06-18 14:50
Flavor·Python
no description available
Submitted by anonymous
-1

woop

Created·2015-02-15 22:12
Flavor·Python
no description available
Submitted by anonymous
-1

text beetween text

Created·2015-01-23 10:35
Flavor·Python
no description available
Submitted by karol
-1

Alternative With Capture Groups

Created·2015-01-21 13:52
Flavor·Python
Capture alternative items matching end of lines country codes
Submitted by Branden
-1

sfafagergfwefe323

Created·2014-10-26 19:15
Flavor·Python
no description available
Submitted by anonymous

Community Library Entry

0

Regular Expression
Created·2015-07-13 08:11
Flavor·PCRE (Legacy)

/
\G('(?>\\.|[^'])*'|NULL|(?>-?\d+(?>\.\d+)?))(?:,|(\z))
/
Open regex in editor

Description

This will parse the fields portion of a mysqldump lines such as:

INSERT INTO users VALUES (42,'Bob',12.34,NULL,'It's ok!');

Submitted by Steve Shreeve