Regular Expressions 101

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Community Patterns

1

full url dissection

PCRE2 (PHP >=7.3)
any given url inside a text will be recognized and split into different groups: url (full url) scheme hostname (subdomain + domain + tld) port path...
Submitted by ttschnz - 3 years ago
1

Username Validation

ECMAScript (JavaScript)
Super simple, just checks for 5 or more letters/numbers/symbols.
Submitted by Ryan Varley - 3 years ago (Last modified 3 years ago)
1

SoundCloud Link Verification

PCRE2 (PHP >=7.3)
SoundCloud doesn't have usernames in their URLs, but the user can customize their url with the following rules for what comes after soundcloud.com/: • Use only numbers, lowercase letters, underscores, or hyphens. • Profile URLs must not start or end with an underscore or hyphen....
Submitted by Dylan - 3 years ago (Last modified 3 years ago)
1

link findall

Python
Submitted by Kerem Göksu - 3 years ago
1

URL check

ECMAScript (JavaScript)
What it does? The `RegExp tries to test if a url is valid or not according to Guildness for URL Display
Submitted by javalsai - 3 years ago
1

AXIO - Parsing debug:router command

PCRE2 (PHP >=7.3)
Parsing of a debug:router command output
Submitted by anonymous - 3 years ago
1

Pattern string

PCRE2 (PHP >=7.3)
Example of test I did do to company.
Submitted by Claudio Santos - 3 years ago
1

Match at least One upper, lower, number and Special char.

PCRE2 (PHP >=7.3)
Determines if string contains: 1 Uppercase 1 Lowercase 1 Number 1 Symbol
Submitted by Rae - 3 years ago
1

selects Bengali text

ECMAScript (JavaScript)
This selects Bengali using the script tag. It works in Javascript, using: text.split(/+/ug) or text.match(/[\p{Script=Bengali}]+/ug) This Regex was provided by Peter Seliger
Submitted by anonymous - 3 years ago
1

Phone Number Selector

ECMAScript (JavaScript)
Select a Phone Number with +98 or 0
Submitted by Amir Hossein Khateri - 3 years ago
1

Select PHP Block Code

PCRE2 (PHP >=7.3)
Select php block code , start to end.
Submitted by amir hossein khateri - 3 years ago
1

Email Address Validation

PCRE2 (PHP >=7.3)
This validate all most all email addresses.
Submitted by anonymous - 3 years ago
1

lsblk-output-regex

Golang
Trying to adapt this regex to support LVM.
Submitted by anonymous - 3 years ago
1

Brackets Items

PCRE2 (PHP >=7.3)
This REGEX, allow extract all words in brackets [].
Submitted by anonymous - 3 years ago
1

Absolute File Path Validation

ECMAScript (JavaScript)
Matches absolute file paths, such as C:\Users\username\Documents\filename.txt The path must contain a file and extension at the end
Submitted by anonymous - 3 years ago
1

Select Chapters and Bad Headers

PCRE2 (PHP >=7.3)
Selects and optionally replaces repetitive chapters, headers, and other sections with a dinkus. Does not select unique chapter titles. Useful for quickly cleaning literary datasets for finetuning a model or module. Originally designed for use with NovelAI.
Submitted by lion - 3 years ago (Last modified 3 years ago)
1

yyyy/mm/dd

Golang
^(((\d{3}[1-9]|\d{2}[1-9]\d|\d[1-9]\d{2}|[1-9]\d{3})(\/)(((0[13578]|1[02])(\/)(0[1-9]|[12]\d|3[01]))|((0[469]|11)(\/)(0[1-9]|[12]\d|30))|(02(\/)(0[1-9]|[1]\d|2[0-8]))))|(((\d{2})(0[48]|2468|13579)|((0[48]|2468|3579)00))(\/)02(\/)29))$ Match year/month/day format. e.g: 2020/02/29 [match] 2021/02/29 ...
Submitted by mayl0421 - 3 years ago
1

Div shortcode [div]..[/div]

ECMAScript (JavaScript)
Converts the markdown shortcode for the dive element to the regular HTML: Example shortcode: [div id="bla" class="ups"]some multiple line text[/div]
Submitted by Dux Linux - 3 years ago
1

BIC Codes

PCRE2 (PHP >=7.3)
BIC (Bank Identifier Code) #fin #bank #swift #iban #bic
Submitted by anonymous - 3 years ago
1

international country code matcher

PCRE2 (PHP >=7.3)
to match international country code of the phone number
Submitted by anonymous - 3 years ago
1...772773774775776...902

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
^rgba?\((?:\s+)?(?<r>\d+(?<unit>%?))(?:\s+)?(?<separator>[\s|,])(?:\s+)?(?<g>\d+\k<unit>)(?:\s+)?\k<separator>(?:\s+)?(?<b>\d+\k<unit>)(?:\s+)?(?:(?<=(?:,.+))(?:,(?:\s+)?(?<a>(?:\d+)?(?:\.?\d+)))?(?:\s+)?)?\)$
/
gm
Open regex in editor

Description

Pattern for matching actually valid RGB values.

  • validate separator (mixing spaces and commas between values is not valid)
  • validate if comma is used as separator if alpha channel is set
  • validate units (mixing percentage with integers is not valid)
  • extract r, g, b, a, separator and unit with named groups
Submitted by BorisTB - 3 years ago (Last modified 3 years ago)