Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

1

UrlRegex

PCRE2 (PHP >=7.3)
Test for URL regex
Submitted by anonymous - 4 months ago (Last modified 4 months ago)
0

test

PCRE2 (PHP >=7.3)
test
Submitted by anonymous - 4 months ago (Last modified 4 months ago)
1

Get description from metadata GPX file

PCRE2 (PHP >=7.3)
Get description from metadata GPX file
Submitted by anonymous - 4 months ago
1

Obsidian internal links

PCRE2 (PHP >=7.3)
This should match any valid Obsidian internal links, in either wikilinks or Markdown format. It is designed for use with ICU.
Submitted by @Calion - 4 months ago (Last modified 4 months ago)
1

Simple but powerful email

ECMAScript (JavaScript)
"/" - start of regular expression "^" - anchor to beginning of string Group: [a-z0-9]+ "[a-z0-9]" - Latin character or digit "+" - occurring ONE or more times...
Submitted by Diableros [https://github.com/Diableros] - 4 months ago (Last modified 4 months ago)
1

Parse C-like Source Line

PCRE2 (PHP >=7.3)
Description This parses a line of C-like source code into the groups `, , , , and `. It should be matched against a line of source code either containing or not containing the line ending. Use Cases ...
Submitted by A-Paint-Brush - 4 months ago (Last modified 4 months ago)
1

Match Valid C-like String Literal

PCRE2 (PHP >=7.3)
This regex matches a single one-line C-like string literal. The parsing rules are almost exactly the same as C string literals: A string literal can be surrounded by either single or double quotes, but they must match. In a double quoted string, single quotes can optionally not be preceded by a back...
Submitted by A-Paint-Brush - 4 months ago
0

Validates an IPv4 Address

PCRE2 (PHP >=7.3)
Given a string, the regex would match if it is a valid IPv4 address.
Submitted by A-Paint-Brush - 4 months ago (Last modified 4 months ago)
1

E-mail pattern for html input.

ECMAScript (JavaScript)
Simply e-mail pattern for html tag.
Submitted by KsaR99 - 4 months ago
1

Split Docker image into image name, tag and digest with all optional

Golang
Splits a Docker image string into the separate parts: image, tag, digest tag and digest are optional
Submitted by Roemer - 4 months ago
1

East pointer, reference and const to west.

Python
just as god intended. "T const" -> "const T"
Submitted by SpaghettDev - 4 months ago (Last modified 4 months ago)
1

german date era with tolerance: n. Chr. or v. Chr. / n. Ztr of v. Ztr

ECMAScript (JavaScript)
Maches german era notations in date "v. Chr" and "v. Ztr" It is meant to be tolerant : periods and spaces are optional, and it is case insensitive
Submitted by Olivier CHEVET - 4 months ago
1

Timestamp Regex

ECMAScript (JavaScript)
matches a timestamp that is in the format of Aug 14, 2024, 10:12 AM or month shortcode followed by day, year, time in 12 hours
Submitted by astro - 4 months ago
1

Validate python version

PCRE2 (PHP >=7.3)
Validate accepted patterns from PEP 440
Submitted by anonymous - 3 months ago
1

email-validation_email_dogrulama

PCRE2 (PHP >=7.3)
^ - This indicates the beginning of the expression. - This part specifies that the first character cannot be a digit, hyphen, or underscore. So the first character must be a letter, period, or other special character. [A-z0-9.-]+ - This part requires the username to contain at least one character...
Submitted by Emre Yıldırım - 3 months ago
1

url_validation_url_doğrulama

ECMAScript (JavaScript)
^ - This signifies the start of the expression. https?:// - This matches either "http://" or "https://". (www.)? - This makes the "www." subdomain optional. [A-z0-9]+ - This matches one or more alphanumeric characters for the domain name. . - This matches a literal period character. [A-z0-9]+ - This...
Submitted by Emre Yıldırım - 3 months ago
1

匹配文件连接的文件名

PCRE2 (PHP >=7.3)
用于获取文件或者图片链接的文件名包含后缀
Submitted by anonymous - 3 months ago
1

Latin letters (Basic, extended-a, extended-b) with numbers

PCRE2 (PHP >=7.3)
https://symbl.cc/en/unicode-table/#latin-extended-b
Submitted by thenostrom - 3 months ago
1

Mp4 Url RegEx

PCRE2 (PHP >=7.3)
Match a http, https and local path url that contains Mp4
Submitted by anonymous - 3 months ago
1

vozuskia (cs/sk)

Java 8
Addes a non-breaking space after any of the letters included in the [vozuskia] class.
Submitted by Manuel Souto Pico - 3 months ago
1...366367368369370...902

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

"
^https?://(www.)?[A-z0-9]+\.[A-z0-9]+$
"
gm
Open regex in editor

Description

^ - This signifies the start of the expression. https?:// - This matches either "http://" or "https://". (www.)? - This makes the "www." subdomain optional. [A-z0-9]+ - This matches one or more alphanumeric characters for the domain name. . - This matches a literal period character. [A-z0-9]+ - This matches one or more alphanumeric characters for the top-level domain. $ - This signifies the end of the expression.

Türkçe olarak:

^ - Bu, ifadenin başlangıcını belirtir. https?:// - Bu, "http://" veya "https://" şeklindeki bağlantıları eşleştirir. (www.)? - Bu, "www." alt etki alanının isteğe bağlı olduğunu gösterir. [A-z0-9]+ - Bu, etki alanı adı için alfasayısal karakterleri eşleştirir. . - Bu, literal nokta karakterini temsil eder. [A-z0-9]+ - Bu, en üst düzey etki alanı için alfasayısal karakterleri eşleştirir. $ - Bu, ifadenin sonunu belirtir.

Submitted by Emre Yıldırım - 3 months ago