Regular Expressions 101

Order By

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

Community Patterns

1

Music Notes

PCRE (PHP <7.3)
regex that identifies music notes written with A, B, ..., A#, C#, ... Ab, Bb, ... notation.
Submitted by anonymous - 9 years ago
1

general script detection

PCRE (PHP <7.3)
This is a input regex for invaliding inputs that are likely to be scripts. this is a way to hidder xss attacks on your web application and api.
Submitted by ivan - 9 years ago
1

Regex for the brazilian CNPJ

PCRE (PHP <7.3)
A regex for the brazilian document named of CNPJ (Cadastro Nacional de Pessoa Jurídica)
Submitted by André Ramos (github.com/andrelramos) - 9 years ago
2

Brazilian Telephone Regex

PCRE (PHP <7.3)
A regex for brazilian telephones
Submitted by André Ramos (github.com/andrelramos) - 9 years ago
1

split by slash

PCRE (PHP <7.3)
no description available
Submitted by Stephen - 9 years ago
1

CC Validation and Tests

PCRE (PHP <7.3)
no description available
Submitted by PRPLrs - 9 years ago
0

RFC Email address attempt

PCRE (PHP <7.3)
This looks to attempt to validate email addresses per the RFC. I don't know how accurate it is.
Submitted by anonymous - 9 years ago
1

Fanfiction.net Genres

PCRE (PHP <7.3)
Matches a string if it contains any of the valid FFN genres.
Submitted by anonymous - 9 years ago
3

Firt letter of names capitalize with exceptions

ECMAScript (JavaScript)
Check if brazilian names are imputed correctly. Ex: Paulo da Silva
Submitted by William - 9 years ago
1

aws-elb-access-log

PCRE (PHP <7.3)
ELB log parser
Submitted by Peker Mert Oksuz - 9 years ago
3

Removes duplicate lines in text editor

PCRE (PHP <7.3)
"dot matches newline" must be activated. Search and replace by "" (empty string) removes duplicate lines anywhere in text. Example for Notepad++ use shown under http://stackoverflow.com/questions/3958350/removing-duplicate-rows-in-notepad
Submitted by Stackoverflow user stema - 9 years ago
1

<xs:pattern value="[!-ÿ]{1}[ -ÿ]{0,}[!-ÿ]{1}|[!-ÿ]{1}"/>

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

IP:Port

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

to:192.168.20.55:80

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

url validation HTML5

ECMAScript (JavaScript)
This is validation that is used in html5 for validate the url. http://www.faqs.org/rfcs/rfc3987.html
Submitted by Alex Matos - 9 years ago
0

last name|firstname|463

PCRE (PHP <7.3)
no description available
Submitted by Chris - 9 years ago
1

G-Code 1

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

1

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1

nginx_luedong

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
-1

Hostname validator

PCRE (PHP <7.3)
Validates the format of IPv4/IPv6 hostnames as well as domain names.
Submitted by anonymous - 9 years ago
1...765766767768769...900

Community Library Entry

0

Regular Expression
Python

r"
(?P<Month>(?:01|02|03|04|05|06|07|08|09|10|11|1|2|1|2|3|4|5|6|7|8|9|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|January|February|March|April|May|June|July|August|September|October|November|December))[\-/\\\s]+(?P<Day>[0-3]?\d)[\-/\\\s]+(?P<Year>\d+)
"
gi
Open regex in editor

Description

Parses date in (Month Day Year) format with delimiting chars being -/ or whitespace

Submitted by Awk - 9 years ago