Regular Expressions 101

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Community Patterns

-3

Number

ECMAScript (JavaScript)
Gets all numbers in a string. This includes positive and negative numbers aswell as integers and floats. By: http://www.benlorantfy.com/
Submitted by Ben - 10 years ago
-3

Match substitutions

Python
Match regular expressions substitutions, I personally use this to perform my validate if it is a substitution, then call re.sub() on it.
Submitted by Zarthus - 10 years ago
-3

Detect a numeric string

ECMAScript (JavaScript)
no description available
Submitted by Ankur Chauhan - 10 years ago
-3

Strict email validation

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
-3

remove facebook urls from html

ECMAScript (JavaScript)
This will remove all facebook urls from a HTML string
Submitted by Russell Miller - 9 years ago
-3

Matches percentage with any number of digits

Python
Only captures value for converting percentage to decimal. Returns empty if percentage but no value. no match = no percentage found
Submitted by sharkey - 9 years ago
-3

Html Tags

ECMAScript (JavaScript)
Matches HTML structure
Submitted by sagar - 9 years ago
-3

matching words between tags

ECMAScript (JavaScript)
matching words between square brachets tags include newline or carriage return
Submitted by anonymous - 9 years ago
-3

TD data from html table

Python
no description available
Submitted by Deepak Bansal - 9 years ago
-3

IPv4 address

Python
Matches any IPv4 address
Submitted by anonymous - 9 years ago
-3

Working With Data regex sample text

PCRE2 (PHP >=7.3)
This is a sample text for use at my "Working With Data" workshop session on regular expressions.
Submitted by anonymous - 3 years ago
-2

non-negative integer

ECMAScript (JavaScript)
repeat ... refactor
Submitted by jay johnson - 11 years ago
-2

email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 11 years ago
-2

Select ID from regex101 URL

ECMAScript (JavaScript)
no description available
Submitted by Vinay - 11 years ago
-2

Regex to select text withing square brackets.

ECMAScript (JavaScript)
no description available
Submitted by Dhrubajyoti Gogoi - 10 years ago
-2

Header `Link` validator

ECMAScript (JavaScript)
no description available
Submitted by Vaseker - 10 years ago
-2

Matching HTML attributes

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
-2

example

Python
match
Submitted by anonymous - 10 years ago
-2

Basic grammar for regex matching of simplistic Makefiles

Python
This expression should both normal and wildcard targets and rules wrapped in simple sub-shell or varriable substitution enclosures.
Submitted by Robert Butler <me@r-butler.net> - 10 years ago
-2

Regex for 1 to 100 with or without decimal values

ECMAScript (JavaScript)
no description available
Submitted by Ved - 10 years ago
123...434

Community Library Entry

0

Regular Expression
PCRE2 (PHP >=7.3)

/
(^[tT][0-9]+[_])(.*)(submit$)
/
gm
Open regex in editor

Description

Some custom pattern matching where a string start with t and end with any string, for example - t123_click, t1234_click_submit, T12_click_click_skip

Submitted by Jaswinder - 2 years ago