Regular Expressions 101

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Community Patterns

19

Email (RFC2822)

Recommended
ECMAScript (JavaScript)
Email address compliant with RFC2822
Submitted by Jago - 9 years ago
9

Fiddler raw body to PHP array

PCRE (PHP <7.3)
no description available
Submitted by garsax - 9 years ago
14

RFC3339 DateTime

Recommended
PCRE (PHP <7.3)
Validates a RFC3339 DateTime format. Does not validates the Data
Submitted by anonymous - 9 years ago
27

Parsing browser User Agents

PCRE (PHP <7.3)
From a (fairly large) list of User Agent strings, extract the OS, Browser, and Device Type.
Submitted by OnlineCop - 10 years ago (Last modified a year ago)
11

Conventional Commits validation

Python
This regex prevents the writing of non-standard conventional commits. I'm available on my github
Submitted by Krisque - 3 years ago (Last modified 3 years ago)
19

Get path from any text

Recommended
PCRE2 (PHP >=7.3)
Get path (windows style) from any type of text (error message, e-mail corps ...), quoted or not. THIS IS THE SINGLE LINE VERSION !_ If you want understand how it work or edit it, go https://regex101.com/r/7o2fyy Relative path are not supported...
Submitted by nitrateag - 2 years ago (Last modified a year ago)
35

Strict Password Validator

ECMAScript (JavaScript)
This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...
Submitted by qho - 7 years ago (Last modified a year ago)
13

CSS Color Matcher

ECMAScript (JavaScript)
Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/
Submitted by Kyza - a year ago
30

Cron schedule

Recommended
PCRE (PHP <7.3)
Validate cron lines (even the ones commented out)
Submitted by anonymous - 9 years ago
24

best youtube id match ( iframe embed replace ready )

Recommended
PCRE (PHP <7.3)
MATCH ANY YOUTUBE ID author : mi-ca v1.0 – 2017.03.08 This Regex match any youtube url and grab the ID. Embed ready √ --...
Submitted by mi-ca.ch - 6 years ago
1...900901902

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
(\s*\{(?:\s*"Modulus"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Exponent"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"P"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Q"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DP"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"InverseQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"D"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)|,)|,)|,)|,)|,)|,)|,)()){8}\s*\}\s*\2\3\4\5\6\7\8\9)|(\s*\{(?:\s*"Modulus"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(12)|,)()|\s*"Exponent"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(11)|,)()){2}\s*\}\s*\11\12)
/
gm
Open regex in editor

Description

.NET Tested

Submitted by anonymous - 4 years ago