Regular Expressions 101

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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

2

Regular Expression
.NET 7.0 (C#)

@"
^(?>(?'protocol'[a-zA-Z]+)://)?(?'domain'[a-zA-Z0-9.\-_]*)?(?>:(?'port'\d{1,5}))?/(?'path'[a-zA-Z0-9_\-%]+)(?:(?>\?(?'query'[a-zA-Z0-9_\-=&%]+))()|(?>#(?'anchor'[a-zA-Z0-9_\-%]+))()){0,2}$
"
gm
Open regex in editor

Description

Matches protocol, domain, port, path, query and anchor as named capturing groups.

Submitted by Jonathan - a year ago (Last modified a year ago)