Regular Expressions 101

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Community Patterns

1

get Markdown image link and alt

PCRE2 (PHP >=7.3)
get image's link and alt in Markdown
Submitted by fgt1t5y - a year ago
1

Get all table from sql query string | 从SQL查询语句中获取所有表名

PCRE2 (PHP >=7.3)
Get all table from sql query string | 从SQL查询语句中获取所有表名。 WelineFramework PHP8 。
Submitted by Aiweline/秋枫雁飞 - a year ago
1

Extract phone number and email address from string

PCRE2 (PHP >=7.3)
Extract the phone numbers and email addresses from a string
Submitted by Mukesh Jangid - a year ago
1

Get Markdown Table Row

PCRE2 (PHP >=7.3)
Get the whole row except the header delimiter
Submitted by Matthias König - a year ago
1

Get Markdown Tables

PCRE2 (PHP >=7.3)
Get a Match for every table in a markdown file.
Submitted by Matthias König - a year ago
1

Kafka loki parser

Golang
Kafka loki parser
Submitted by anonymous - a year ago
1

OpenWeather API Key Regex

ECMAScript (JavaScript)
A simple regex to match API keys for OpenWeather map. Matches 32 hexadecimal character strings.
Submitted by anonymous - a year ago
1

Roblox Account Cookie RegExp

ECMAScript (JavaScript)
A regex to match against Roblox cookies. Two captures; the first is the warning text; the second is the cookie itself.
Submitted by anonymous - a year ago
1

Discord Bot Token

ECMAScript (JavaScript)
JS/TS regex for token validation.
Submitted by anonymous - a year ago
1

Rust Phone Number

Rust
not fully featured, but simple.
Submitted by Jakersnell - a year ago
1

replace static url tags in templates from flask to django

PCRE2 (PHP >=7.3)
replace static url tags in templates from flask to django
Submitted by anonymous - a year ago
1

Start of Java Functions

PCRE2 (PHP >=7.3)
I wrote this regex to find all of the function headers in java.
Submitted by anonymous - a year ago
1

hyphenize

ECMAScript (JavaScript)
convert 16 chars into four hyphen separated groups
Submitted by mco - a year ago
1

L2 = {w ∈ Σ ∗ = {0, 1} ∗ | |w|1 = 2k + 1, k ∈ N}

PCRE2 (PHP >=7.3)
L2 = {w ∈ Σ ∗ = {0, 1} ∗ | |w|1 = 2k + 1, k ∈ N}
Submitted by Alan Dantas - a year ago
1

L012 = {w ∈ Σ | |w|000 = 0} ∗ = {0, 1} ∗ | |w|000 = 0}

PCRE2 (PHP >=7.3)
L012 = {w ∈ Σ | |w|000 = 0} ∗ = {0, 1} ∗ | |w|000 = 0}
Submitted by Alan Dantas - a year ago
1

L1 = {w ∈ Σ ∗ = {0, 1} ∗ | |w|0 = 2k, k ∈ N}

PCRE2 (PHP >=7.3)
L1 = {w ∈ Σ ∗ = {0, 1} ∗ | |w|0 = 2k, k ∈ N}
Submitted by Alan Dantas - a year ago
1

Exabeam NGSC REGEX FIlters

PCRE2 (PHP >=7.3)
Regex to filter Fortinet DNS Request in Exabeam Fusion
Submitted by Jonathan Moreira - a year ago
1

English address

ECMAScript (JavaScript)
English address that can start with numbers, # sign or words (\w) followed with any combination of previously mentioned. Multi-line, global and case insensitive supported. Address CANNOT START WITH \w character _ or 0 or any other symbols
Submitted by Dr St Clair Clarke - a year ago (Last modified a year ago)
1

correos

PCRE2 (PHP >=7.3)
correos
Submitted by lamusaliza - a year ago
1

REGEX for parsing Received value in email headers (RFC822)

ECMAScript (JavaScript)
Example: Received: from VI1PR0102CA0029.eurprd01.prod.exchangelabs.com (2603:10a6:802::42) by VE1PR01MB5599.eurprd01.prod.exchangelabs.com (2603:10a6:803:11f::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2602.12; Thu, 9 Jan ...
Submitted by anonymous - a year ago
1...3435363738...900

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
(?:\sfrom\s+(?<from>[^\s*]+)[\s]*(?:(?:[\[\(.]?(?<fromh>.*?)?\.?\ *?[\[\(]?(?<fromip>(?:[0-9a-z]*?[\.\:]+[0-9a-z]*?)+)?[\)\]]+)?)(?=[\s;]+(?:by|with|via|id|for|;)\s*?)|\s+by\s+(?<byv>.*?)(?:\s+?\((?:[a-z\-\.]*?\s+)*?\[?(?<byip>(?:(?:[0-9a-z]*?[\.\:]+[0-9a-z]*?)+))*\]?\)?)?(?=[\s;]+(?:from|with|via|id|for|;)\s*?)|\s+via\s+(?<via>[a-z0-9\.\s]*?)(?=(?:\s*;|[\s]+(?:from|by|with|for|id|;))\s*?)|\swith\s+(?<protocol>(?:.|\s)*?)(?=(?:\s*;|[\s]+(?:from|by|via|for|id|;))\s*?)|\s+id\s+(?<id>[^\s;]+)(?=(?:\s*;|[\s]+(?:from|by|via|with|for|;))\s*?)|\s+for\s+<?(?<for>[^\s;>]+)>?(?=(?:\s*;|[\s]+(?:from|by|via|with|id|;))\s*?)|;\s+(?<date>[a-z]{3},\s+[0-9]{1,2}\s+[a-z]{3,4}\s+[0-9]{4}\s+[0-9]{2}\:[0-9]{2}\:[0-9]{2}\s+(?:-[0-9]{4}\s+)?(?:\([a-z]+\)|\+[0-9]{4}))?\n?)
/
gmi
Open regex in editor

Description

Example: Received: from VI1PR0102CA0029.eurprd01.prod.exchangelabs.com (2603:10a6:802::42) by VE1PR01MB5599.eurprd01.prod.exchangelabs.com (2603:10a6:803:11f::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2602.12; Thu, 9 Jan 2020 16:34:13 +0000

will give details for the emitter (from), receiver (by), for, date, ...

Submitted by anonymous - a year ago