Regular Expressions 101

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Community Patterns

1

IPv4 no leading zeros

ECMAScript (JavaScript)
An IPv4 expression that doesn't allow leading zeros in octets. 10.0.0.1 will pass 10.0.0.01 shouldn't pass
Submitted by machfist - 15 hours ago
1

JSON

PCRE2 (PHP >=7.3)
Valid Syntax: 1 23.5 -13.2 -3.5e-23 false...
Submitted by anonymous - 18 hours ago
1

Match floating numbers lower than 0.057

PCRE2 (PHP >=7.3)
Matches zero followed by decimal separator followed by a group of three options: hundreds below 0.857 0.800 + tenths below 0.057 0.850 + units below 0.007
Submitted by msoutopico - a day ago
1

Match floating numbers higher than 0.056

PCRE2 (PHP >=7.3)
Matches zero followed by decimal separator followed by a group of three options: hundreds above 0.857 0.800 + tenths above 0.056 0.850 + units above 0.056
Submitted by msoutopico - a day ago
1

Cube Voyager Application Headers

Python
Matching Cube Voyager Application Files
Submitted by On Dai Wai - 5 days ago
0

Matching and Grouping Second Degree Polynomials

PCRE2 (PHP >=7.3)
Matches second-degree polynomials and returns values a, b, c, sign, and 0.
Submitted by SpiderRocket - 6 days ago
1

dumb email

Python
it is a naive email regex
Submitted by anonymous - 12 days ago
1

/$ repo sync -c -j8/gm

PCRE2 (PHP >=7.3)
/$ repo sync -c -j8/gm
Submitted by anonymous - 12 days ago
1

Mexico Phone Expression

PCRE2 (PHP >=7.3)
Regular expression for a mexican phone format.
Submitted by Jorge Loreto - 13 days ago
1

Regexp to extend abbrev in Emacs.

PCRE2 (PHP >=7.3)
Regex expression to make abbreviation starts with "@", "/" available in Emacs.
Submitted by zeit - 14 days ago
1

https://regex101.com/api/regex

PCRE2 (PHP >=7.3)
// SPDX-License-Identifier: LGPL-3.0-only // Created By: Art Blocks Inc. pragma solidity ^0.8.0; /**...
Submitted by anonymous - 16 days ago
1

Ultimate number selecter

Python
Selects all forms of numbers, ranging from decimals, to numbers with commas
Submitted by anonymous - 22 days ago (Last modified 22 days ago)
1

Convetional commits

Python
Convetional commits regex
Submitted by anonymous - 22 days ago
1

Parser for dig-type DNS requests

PCRE2 (PHP >=7.3)
There are 4 capture groups: 1: domain name 2: TTL (how long until the record expires) 3: TYPE (the type of DNS record) 4: CONTENT (the content of the DNS record. This depends on the type) ...
Submitted by Thomdestreamer - 22 days ago
0

^([a-zA-Z0-9_\-\.\+]+)@(([a-zA-Z0-9_\-\.]+)?([^\.])\.([a-zA-Z]{2,6})|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) ?$

PCRE2 (PHP >=7.3)
Пример: "w1@mail.com " - рабочий Пример: "w1@mail.com " - не рабочий
Submitted by anonymous - a month ago
1

^(\+)?\d{10,15} ?$

PCRE2 (PHP >=7.3)
Пример: "+79069999999 " - рабочий Пример: "+79069999999 " - не рабочий
Submitted by anonymous - a month ago
1

(?:^[^ ].*[ ].*)[^ ] ?$

PCRE2 (PHP >=7.3)
Пример: "йцу йцу " - рабочий Пример: "йцу йцу " - не рабочий
Submitted by anonymous - a month ago
1

普罗米修斯解析匹配

Java 8
"^([\w_]+)(?:\{(*)\})?\s+([\d\\.e+-]+)(?:\s+(\d+))?$"gm
Submitted by umanan - a month ago
1

Only one special character("-") per word

ECMAScript (JavaScript)
Only one special character ("-") is allowed when entering a word
Submitted by anonymous - a month ago
1

Id_regular expression

PCRE2 (PHP >=7.3)
Expresion regular para generar identificadores
Submitted by David Chavez - a month ago (Last modified a month ago)
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