Regular Expressions 101

Order By

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

Community Patterns

1

URL-safe, human-safe friendly IDs

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

test

ECMAScript (JavaScript)
test
Submitted by test - 10 years ago
1

test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
3

Find URLs in markdown where the lines have been wrapped

Python
no description available
Submitted by anonymous - 10 years ago
0

seasons

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

nginx rewrite

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

Extracting Numbers

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

sushiroles

PCRE (PHP <7.3)
some sushi role
Submitted by anonymous - 10 years ago
1

Test prioritized match

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
0

Searching for bracketed fields and optional parameters

ECMAScript (JavaScript)
This is a quick test of how to add optional identifiers to a fieldname search in REDCap
Submitted by Andy Martin - 10 years ago
-3

mama

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

test

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

Recursive Search

PCRE (PHP <7.3)
Proof of concept to omit restriction with '' http://stackoverflow.com/questions/15584634/about-php-regexp-for-recursive-pattern?answertab=oldest#tab-top http://stackoverflow.com/questions/25408579/regex-to-match-blocks-inside-blocks
Submitted by themroc - 10 years ago
1

Recursive search

PCRE (PHP <7.3)
Proof of concept to omit restriction with '' http://stackoverflow.com/questions/15584634/about-php-regexp-for-recursive-pattern?answertab=oldest#tab-top http://stackoverflow.com/questions/25408579/regex-to-match-blocks-inside-blocks
Submitted by themroc - 10 years ago
1

Recursive search

PCRE (PHP <7.3)
Proof of concept to omit restriction with '' http://stackoverflow.com/questions/15584634/about-php-regexp-for-recursive-pattern?answertab=oldest#tab-top http://stackoverflow.com/questions/25408579/regex-to-match-blocks-inside-blocks
Submitted by themroc - 10 years ago
2

Match number in html

ECMAScript (JavaScript)
Prevent matching in markup attributes
Submitted by Mathieu Civel - 10 years ago
2

SFTP or FTP url

PCRE (PHP <7.3)
Parse an SFTP or FTP url and brak it into named capture groups.
Submitted by Cullen Johnson - 10 years ago
13

regex101.com id grabber

PCRE (PHP <7.3)
grabs the ID for the regex101.com permalink to code
Submitted by chris mccoy - 10 years ago
1

Matching url

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

Demo

ECMAScript (JavaScript)
no description available
Submitted by Tensibai - 10 years ago
1...881882883884885...902

Community Library Entry

3

Regular Expression
PCRE (PHP <7.3)

/
^(?<protocol>[a-z\-]+)?:?(?<slash>\/\/)?(?<host>[a-zA-Z0-9\.]+)?(?P<port>:\d+)?$
/
gm
Open regex in editor

Description

Best Full URL Regex to match URL, This is simple and can match 64K of url regex under 77ms

Regex Matches All Below and more:

Submitted by divineniiquaye - 4 years ago