Regular Expressions 101

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Community Patterns

2

domain for Google Data Studio (re2 dialect)

Golang
Matches subdomain, domain and top level in a field that contains a urls. https://www.whatever.you.want ---> whatever.you.want
Submitted by anonymous - 8 years ago
2

IPv4 dotted decimal

ECMAScript (JavaScript)
This regexp was written for Regex Tuesday Challenge - Week Six.
Submitted by anonymous - 8 years ago
2

Ansible Host Var checking

Python
We had an issue where the "hosts=some_var" value could cause mass deployments if the wrong value was passed through. Specifically a comma with nothing surrounding it (i.e. "hosts=,"). This regex will allow us to fail when certain characters are present.
Submitted by anonymous - 8 years ago
2

check name

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 8 years ago
1

Thai mobile phone

PCRE (PHP <7.3)
Start with 0 and the second character is 6|8|9 Thai mobile phone number up to 10
Submitted by anonymous - 8 years ago
2

URL parser

PCRE2 (PHP >=7.3)
The best way to parse URL via Regex. This can be used in javascript, PHP, etc.
Submitted by Ivijan-Stefan Stipic - 8 years ago (Last modified a year ago)
2

Re Twitts

ECMAScript (JavaScript)
find retwitt hashtag on Twitters and add a label to highlight it.
Submitted by anonymous - 7 years ago
2

Re Twitts

ECMAScript (JavaScript)
find retwitt hashtag on Twitters and add a label to highlight it.
Submitted by anonymous - 7 years ago
2

Iranian birth date

PCRE (PHP <7.3)
Iranian birth date aka tarikh tavalod تاریخ تولد ایرانی ها
Submitted by ehsanJamalian - 7 years ago
2

shenasname code

PCRE (PHP <7.3)
Iranian identity code aka shenasname code شماره شناسنامه ایرانی ها
Submitted by ehsanJamalian - 7 years ago
2

Matching Character Class Transitions (customization of \b)

PCRE (PHP <7.3)
\b can be replicated as (?<=\w)(?=\W)|(?<=\W)(?=\w) Understanding how to create these class transitions can be beneficial for several reasons. In this instance, counting the results of this regex can be used to measure randomness within strings containing multiple character classes.
Submitted by @notGeorgePBurdell - 7 years ago
2

NSU ID Card Checker

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 7 years ago
2

Vehicle Identification Number (VIN)

ECMAScript (JavaScript)
Every vehicle has a unique Vehicle Identification Number (VIN). This 17 character alpha-numeric sequence and must NOT contain the letters I, O or Q (to avoid confusion with the similar looking digits). So, for example, SALVA2AE4EH877322 is valid, but SALVO2AE4EH877322 is not. By using the \b wor...
Submitted by anonymous - 6 years ago
2

Better version of UK postcode

PCRE (PHP <7.3)
This UK postcode regex will match all variants of postcode formats including inner London postcodes (eg SW1A), with optional space (both AL11XP and AL1 1XP are valid) It will reject any postcode that does not specify a valid postcode area. Each part of the postcode is also captured into a capture ...
Submitted by anonymous - 6 years ago
2

Match "A B C" where A+B=C (final version)

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 6 years ago
2

Extract fields from repository url

Python
It is used to extract fields from the repository URL Works in Python and JS Group1 : protocol (Such as http or https) Group2 : domain (Such as github.com or gitlab.com) Group3: Name space (Such as your personal namespace or project namespace) Group4: Project name (Such as your project name)...
Submitted by anonymous - 5 years ago
2

Código Postal

PCRE (PHP <7.3)
Verifica Código Postal [Portugal]
Submitted by anonymous - 5 years ago
2

ES6 Imports/exports/dynamic: Getting the paths

ECMAScript (JavaScript)
It will match the paths of js modules imports, exports and dynamic imports.
Submitted by anonymous - 5 years ago
2

BEM

PCRE (PHP <7.3)
CSS Coding Guideline BEM (Block Element Modifier)
Submitted by anonymous - 4 years ago
2

手机正则

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1...6869707172...900

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
(^\s?[^qvx][^ijz]?[0-9]{1,2}[A,B,C,D,E,F,G,H,J,K,S,T,U,W]?\s?[0-9][^CIKMOV]{2}\s?)
/
gmi
Open regex in editor

Description

as per the following specifications:

FORMAT EXAMPLE AN NAA M1 1AA ANN NAA M60 1NW AAN NAA CR2 6XH AANN NAA DN55 1PT ANA NAA W1A 1HQ AANA NAA EC1A 1BB

  • The letters Q, V and X are not used in the first position
  • The letters I,J and Z are not used in the second position.
  • The only letters to appear in the third position are A, B, C, D, E, F, G, H, J, K, S, T, U and W.
  • The second half of the postcode is always consistent numeric, alpha, alpha format and the letters C, I, K, M, O and V are never used.
Submitted by Spluf (Cosmin Pop) - 8 years ago