Regular Expressions 101

Order By

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

Community Patterns

-2

ignore code comments

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

Username

ECMAScript (JavaScript)
^[_a-zA-Z0-9]+$ how to make regex username with underscore. i'm using c# but this regex isn't working.
Submitted by anonymous - 10 years ago
-2

Detect DNS Zones with Authoritative Nameservers

PCRE (PHP <7.3)
This can be used to find all zone files that contain authoritative nameservers - e.g. perl -ne 'print if /^([\w.]+\.)\s+.+\sNS\s.+\1/' /var/named/*.db | awk '{print $1}' | sort | uniq
Submitted by Santrix - 10 years ago
-2

last, first middle name parser

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

Test Balanced Parentheses

PCRE (PHP <7.3)
no description available
Submitted by Me - 10 years ago
-2

regex for redirect url

PCRE (PHP <7.3)
no description available
Submitted by igor - 10 years ago
-2

cofor

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

Test email

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

Match website - http:|https://i.imgur.com

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

Match Content-Range response header

ECMAScript (JavaScript)
Matches the Content-Range response header format -[end]/[total|*]
Submitted by mdezem - 10 years ago
-2

Find a IPV4

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

Any telephone number with region and country in any format

ECMAScript (JavaScript)
Matches any telephone number with region parentesis, or separated by points or dash or spaces
Submitted by https://co.linkedin.com/in/andresfelipecardona - 10 years ago
-2

Zipcode Mundial

PCRE (PHP <7.3)
no description available
Submitted by Mariela Gonzalez - 10 years ago
-2

Detect HTML Linebreak Tags

ECMAScript (JavaScript)
Detect various possible HTML linebreak tags (eg. )
Submitted by @benhodgson - 10 years ago
-2

Check syntax port ACL VNG

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

posix

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

spot2-test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

Host and domains

Python
no description available
Submitted by anonymous - 10 years ago
-2

Get HTML DIV content

PCRE (PHP <7.3)
Get the content of a DIV HTML Tag.
Submitted by Ivan Milazzotti - 10 years ago
-2

String with 1 lowercase 1 uppercase & 1 digit

ECMAScript (JavaScript)
Regular expression for a validating a string with following rules: at least one lowercase letter at least one upper case letter at least one digit length between 6 and 14...
Submitted by Rasmita Dash - 10 years ago
1...45678...902

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
^(?:https?:\/\/)((?:www\.)|(?:m\.))?soundcloud\.com\/[a-z0-9](?!.*?(-|_){2})[\w-]{1,23}[a-z0-9](?:\/.+)?$
/
gm
Open regex in editor

Description

SoundCloud doesn't have usernames in their URLs, but the user can customize their url with the following rules for what comes after soundcloud.com/:

• Use only numbers, lowercase letters, underscores, or hyphens. • Profile URLs must not start or end with an underscore or hyphen. • Profile URLs must not have two consecutive underscores or hyphens. • Profile URLs must be between 3 and 25 characters.

Submitted by Dylan - 3 years ago (Last modified 3 years ago)