Regular Expressions 101

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Community Patterns

1

t

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

Double dollar delimited centred LaTeX equation

Python
Find all instances of a double dollar delimited centred LaTeX equation, for use with e.g. KaTeX
Submitted by drewsberry - 10 years ago
1

DNS SOA

PCRE (PHP <7.3)
oneliner SOA record matching regexp. like "ns1.domain.com.ge. mail.ns1.domain.com.ge. (2014061613 3600 600 604800 1800 )" without @ IN SOA in begging, usefull when implementing something like DNS GUI.
Submitted by Nick Chkhikvishvili - 10 years ago
1

unity3d.com csharp lint regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

nginx log parser

Python
separate nginx log into database table-style fields
Submitted by wgzhao - 10 years ago
1

RFC 5322 email validation

PCRE (PHP <7.3)
Unsatisfied with your email validation? Concerned about standards compliance? Worried about that one weird edge case? Want to stress-test your regex engine? This might be the regex for you!
Submitted by Blake Thomas - 10 years ago
1

e164_basic

ECMAScript (JavaScript)
e164_basic
Submitted by anonymous - 10 years ago
1

ECMAScript (JavaScript)
Submitted by - 10 years ago
1

f

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

Get version

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

Remove invalid characters and autotrim

ECMAScript (JavaScript)
remove the multiline switch
Submitted by iamtheauthor - 10 years ago
1

Brazilian phone numbers

Python
no description available
Submitted by rafaelverger - 10 years ago
1

Date range match

PCRE (PHP <7.3)
This is not my creation, it is from a github repor
Submitted by Saji N - 10 years ago
1

Regular Expression for Date

ECMAScript (JavaScript)
Regular expression for asp:RegularExpressionValidator with format MMddyy. i have resolved the issue for leap Year and month ending day as well.
Submitted by Priyanka Khadilkar - 10 years ago
1

Date validation

ECMAScript (JavaScript)
A regular expression to validate a Date in format DD/MM/YYYY
Submitted by Felipe Montaña - 10 years ago
1

match sequential characters

ECMAScript (JavaScript)
HI, I'm looking for RegX to match words with more than two sequential characters
Submitted by JC - 10 years ago
1

incorrect number regex

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

url regex

Python
no description available
Submitted by catwooman - 10 years ago
1

rfc5646 simple

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

Common log format datetime

ECMAScript (JavaScript)
Parses the common log format into component elements. According to wikipedia, common log is strftime format %d/%b/%Y:%H:%M:%S %z
Submitted by Matt Ingenthron <ingenthr@cep.net> - 10 years ago
1...5455565758...902

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
^(([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}){1,25})+([;.](([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}){1,25})+)*$
/
Open regex in editor

Description

Validate multiple Email-addresses separated by semicolon. No check on allowed domains, just a plain and simple check on the correct structure

Submitted by maxthelup - 9 years ago