Regular Expressions 101

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Community Patterns

2

Test numeric input to be between 0,01 and 100,00

ECMAScript (JavaScript)
Tests a numeric input to be between 0,00 < input <= 100,00. Decimals are optional but have at max 2 places.
Submitted by Torsten Walter - 8 years ago
2

Regex Shortcode

PCRE (PHP <7.3)
Check shortcode
Submitted by khiconit - 8 years ago
2

IP Address

PCRE (PHP <7.3)
IPv4 Address Input
Submitted by anonymous - 8 years ago
2

Eircode

PCRE (PHP <7.3)
Eircode validation for new postcodes identifiers in Republic of Ireland. Case-insensetive for easier user input. Added optional space separator to follow same pattern as in UK post codes and in examples used in eircode spec.
Submitted by Arek Jaworski - 8 years ago
2

Match multiline comments /* ... */

PCRE (PHP <7.3)
It won't match single line comments like this one: //* This comment won't be match */ ^ see the double / Works in PHP without the g modifier.
Submitted by SimonaHalep - 8 years ago
2

CSS @media selector

ECMAScript (JavaScript)
Matches a CSS @media selector, matches outer {} curly brackets, works with every CSS code, minified too.
Submitted by emd4 - 8 years ago
2

php naming convension (classes, vars, functions, constants)

PCRE (PHP <7.3)
PHP Basic coding standard Naming Convension pattern: /^\pL_*$/
Submitted by Najmuddeen Mohammed - 8 years ago
2

Palindrome

ECMAScript (JavaScript)
Captures a palindrome of 9 digits or less
Submitted by anonymous - 8 years ago
2

foder add prefix

ECMAScript (JavaScript)
auto prefix ("/") to folder
Submitted by anonymous - 8 years ago
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
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
1...874875876877878...901

Community Library Entry

2

Regular Expression
ECMAScript (JavaScript)

/
\b[(A-H|J-N|P|R-Z|0-9)]{17}\b
/
gm
Open regex in editor

Description

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 word boundary token, we can match in quotes "SALVA2AE4EH877482", brackets (SALVA2AE4EH877998) or other boundaries that people may use <SALVA2AE4EH877002>

Submitted by anonymous - 6 years ago