Regular Expressions 101

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Community Patterns

1

Polynomial extractor with real coefficient

PCRE2 (PHP >=7.3)
It matches any polynomial with integer or real coefficient
Submitted by eFrim - 10 months ago (Last modified 10 months ago)
1

Bitcoin Address Validator

PCRE2 (PHP >=7.3)
A regex to validate Bitcoin addresses.
Submitted by Rimblehelm - 10 months ago
1

O group

ECMAScript (JavaScript)
Oracle Software Owner for Each Oracle Software Product You can create a single user (for example, oracle) to own both Oracle Database, and Oracle Restart installations. However, Oracle recommends that you create one software owner to own each Oracle software installation (typically, oracle, for the ...
Submitted by anonymous - 9 months ago
1

JS/ECMAScript - Comprehensive Telephone Number Parser - US Domestic and Overseas - with NAMED Match Data

ECMAScript (JavaScript)
Explanation Breaks out a phone number input into the following named segments: Opt? Matches Name Desc Y (+ - . :space:) LEADING_PUNCT Leading Punctuation Y 1-3 Digits (0-9) COUNTRY_CODE International country code (US: '1') Y (- . :space:) OPT...
Submitted by @JJ/ZenAtWork NerdyDeeds, LLC - 9 months ago
1

Codice Fiscale italiano

PCRE2 (PHP >=7.3)
[A-Z]{6}[0-9LMNPQRSTUV]{2}[ABCDEHLMPRST]{1}([1-9]|12|3[01]|4[1-9]|56|7[01]|LMNPQRSTUV){2}[A-Z]{1}[0-9LMNPQRSTUV]{3}[A-Z]{1} La regular expression riconosce i codici fiscali. Supporta omocodie ed effettua controllo ristretto sul giorno di nascita
Submitted by Zeta-am - 9 months ago
1

Generic Error Regex 1

PCRE2 (PHP >=7.3)
Check for errors in a verbose log.
Submitted by bvoq - 9 months ago
1

GS1 Transport Label (EAN-128) and parse the application identifiers datafields

.NET 7.0 (C#)
A regex to parse the GS1-128 transport / shipping label from multiple EAN-128. The Regex is generated from the offical GS1 specification will identify all datafields Like for example AI 00: Serial Shipping Container Code (SSCC) AI 01: Global Trade Item Number (GTIN) AI 02: Identification of trade i...
Submitted by anonymous - 9 months ago (Last modified 9 months ago)
1

AWS EventBridge Scheduling Expressions

Java 8
This validates AWS EventBridge scheduling expressions using the rate() and cron() formats. It may not catch all invalid expressions, but it should properly validate all valid expressions, as demonstrated in the unit tests. Please let me know if I missed any valid expressions. Originally attempted ...
Submitted by Evan S Kaufman <evan@evanskaufman.com> - 9 months ago (Last modified 8 months ago)
1

Voice of the World

Python
Voice of the World Matches lines spoken by the Voice of the World in the web novel Super Gene.
Submitted by maxludden - 9 months ago
1

Reddit Links

PCRE2 (PHP >=7.3)
Check links for reddit.com and redd.it
Submitted by adaragao - 9 months ago
1

VCB

PCRE2 (PHP >=7.3)
aaa
Submitted by anonymous - 9 months ago
1

Parse Address - Prefecture

Java 8
get prefecture from Japanese address
Submitted by Gary Ascuy - 9 months ago
1

Parse @ACTIONTAG from text containing params as JSON

PCRE2 (PHP >=7.3)
A parser for actiontags (in the format of @FOO=BAR or @FOO={"param":"bar"}. Returns the match array with the key equal to the tag and an array containing keys of 'params, params_json and params_text' Based on: https://regex101.com/r/fL2rM8/5
Submitted by anonymous - 9 months ago
1

2430workshop10

ECMAScript (JavaScript)
2430workshop10
Submitted by anonymous - 9 months ago
1

Adress without special chars, only space - and coma

PCRE2 (PHP >=7.3)
This regex is used to valiidate addresses. Contains alpha num chars. No special chars except space, coma and -
Submitted by anonymous - 9 months ago
1

Start with a letter and contains words, number spaces

PCRE2 (PHP >=7.3)
Use this to validate name with french characters. Start with a letter and contains words, number spaces
Submitted by anonymous - 9 months ago
1

PGP-encrypted message

ECMAScript (JavaScript)
A Javascript regex for a PGP-encrypted message, including optional armor, valid headers, and checksum.
Submitted by Adroit - 9 months ago
1

PGP-encrypted message (v2)

ECMAScript (JavaScript)
A javascript regex for a pgp-encrypted message, including optional armor, headers, and checksum. Feel free to make improvements if you think I'm missing something from the spec: https://www.rfc-editor.org/rfc/rfc4880#section-6.2
Submitted by anonymous - 9 months ago
1

exclude .jpg .png .js .css path

PCRE2 (PHP >=7.3)
exclude .jpg .png .js .css path
Submitted by zm - 9 months ago
1

Email Format Check

ECMAScript (JavaScript)
This regex can check if the email format is valid. Feels free to use it
Submitted by AkashiDom - 9 months ago
1...807808809810811...902

Community Library Entry

1

Regular Expression
Java 8

"
^(?:rate[(](?:(?:1[ ]+(hour|minute|day))|(?:[0-9]+[ ]+(hours|minutes|days)))[)])|(?:cron[(](?:(?:(?:[0-5]?[0-9])|[*])(?:(?:[-](?:(?:[0-5]?[0-9])|[*]))|(?:[/][0-9]+))?(?:[,](?:(?:[0-5]?[0-9])|[*])(?:(?:[-](?:(?:[0-5]?[0-9])|[*]))|(?:[/][0-9]+))?)*)[ ]+(?:(?:(?:[0-2]?[0-9])|[*])(?:(?:[-](?:(?:[0-2]?[0-9])|[*]))|(?:[/][0-9]+))?(?:[,](?:(?:[0-2]?[0-9])|[*])(?:(?:[-](?:(?:[0-2]?[0-9])|[*]))|(?:[/][0-9]+))?)*)[ ]+(?:(?:[?][ ]+(?:(?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:(?:[-](?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:[/][0-9]+)?)|(?:[/][0-9]+))?(?:[,](?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:(?:[-](?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:[/][0-9]+)?)|(?:[/][0-9]+))?)*)[ ]+(?:(?:(?:[1-7]|(?:SUN|MON|TUE|WED|THU|FRI|SAT))[#][0-5])|(?:(?:(?:(?:[1-7]|(?:SUN|MON|TUE|WED|THU|FRI|SAT))L?)|[L*])(?:(?:[-](?:(?:(?:[1-7]|(?:SUN|MON|TUE|WED|THU|FRI|SAT))L?)|[L*]))|(?:[/][0-9]+))?(?:[,](?:(?:(?:[1-7]|(?:SUN|MON|TUE|WED|THU|FRI|SAT))L?)|[L*])(?:(?:[-](?:(?:(?:[1-7]|(?:SUN|MON|TUE|WED|THU|FRI|SAT))L?)|[L*]))|(?:[/][0-9]+))?)*)))|(?:(?:(?:(?:(?:[1-3]?[0-9])W?)|LW|[L*])(?:(?:[-](?:(?:(?:[1-3]?[0-9])W?)|LW|[L*]))|(?:[/][0-9]+))?(?:[,](?:(?:(?:[1-3]?[0-9])W?)|LW|[L*])(?:(?:[-](?:(?:(?:[1-3]?[0-9])W?)|LW|[L*]))|(?:[/][0-9]+))?)*)[ ]+(?:(?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:(?:[-](?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:[/][0-9]+)?)|(?:[/][0-9]+))?(?:[,](?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:(?:[-](?:(?:[1]?[0-9])|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)|[*])(?:[/][0-9]+)?)|(?:[/][0-9]+))?)*)[ ]+[?]))[ ]+(?:(?:(?:[12][0-9]{3})|[*])(?:(?:[-](?:(?:[12][0-9]{3})|[*]))|(?:[/][0-9]+))?(?:[,](?:(?:[12][0-9]{3})|[*])(?:(?:[-](?:(?:[12][0-9]{3})|[*]))|(?:[/][0-9]+))?)*)[)])$
"
g
Open regex in editor

Description

This validates AWS EventBridge scheduling expressions using the rate() and cron() formats.

It may not catch all invalid expressions, but it should properly validate all valid expressions, as demonstrated in the unit tests. Please let me know if I missed any valid expressions.

Originally attempted this using named capture groups and named back-references to reduce duplication. Unfortunately, named capture support is tricky, so they were all converted to duplicated non-capturing groups instead.

Submitted by Evan S Kaufman <evan@evanskaufman.com> - 9 months ago (Last modified 8 months ago)