Regular Expressions 101

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Community Patterns

-1

Java single line comment matcher

Python
This regex matches java line end comments started with "//" and ignores such ones that are within String literals. (NO SUFFICIENT TESTING WAS DONE TO GUARANTEE 100% SAFETY)
Submitted by Janis Schöck - 9 years ago
-1

word_to_match

Python
no description available
Submitted by anonymous - 9 years ago
-1

IP address

Python
Looks for string formated like an IP address.
Submitted by anonymous - 9 years ago
-1

xml

Python
no description available
Submitted by anonymous - 9 years ago
-1

Integer or decimal number

Python
no description available
Submitted by Rick de L - 9 years ago
-1

HTML Code

PCRE (PHP <7.3)
HTML CODE given by (hex number &#xA0; OR number &#160 OR name &nbsp;)
Submitted by novy - 9 years ago
-3

Date and Time

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-3

british postcode check

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-3

British Postcode Check

PCRE (PHP <7.3)
no description available
Submitted by guest - 11 years ago
-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

Html Tags

ECMAScript (JavaScript)
Matches HTML structure
Submitted by sagar - 9 years ago
-2

non-negative integer

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

French phone number

PCRE (PHP <7.3)
no description available
Submitted by Benoit Anastay - 11 years ago
-2

Regex to select text withing square brackets.

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

Matching HTML attributes

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

Password filter

PCRE (PHP <7.3)
a regular expression validate the passowrd. The criteria is that the password should contain atleast one upper case and one lower case letter.
Submitted by HMK - 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
-2

Find a IPV4

ECMAScript (JavaScript)
no description available
Submitted by Jon Dotsoy - 10 years ago
1...569570571572573...902

Community Library Entry

-1

Regular Expression
Python

r"
^(?:(((([^"\n]|(['\\]"))*?)((?<=[^\'])")){2})*[^"\n]*)(\/\/.*?)$
"
mg
Open regex in editor

Description

This regex matches java line end comments started with "//" and ignores such ones that are within String literals. (NO SUFFICIENT TESTING WAS DONE TO GUARANTEE 100% SAFETY)

Submitted by Janis Schöck - 9 years ago