Regular Expressions 101

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Community Patterns

-1

IPv4 Subnet Mask Verification

PCRE (PHP <7.3)
Intended to verify a valid IPv4 subnet mask against every valid IPv4 subnet mask possible using octet format. Does not check against a string that is using CIDR notation.
Submitted by anonymous - 5 years ago
0

transaction amount

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 5 years ago
0

Identifying float number with more than one dot

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Subdomain - Any protocol, any domain

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Regex for Criterion

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
1

IPv4 private CIDR range RFC1918

Golang
Validates that you provide a CIDR in one of the following valid ranges. 0.0.0 – 127.255.255.255 127.0.0.0/8 0.0.0 – 10.255.255.255 10.0.0.0/8 16.0.0 – 172. 31.255.255 172.16.0.0/12 192.168.0.0 – 192.168.255.255 192.168.0.0/16...
Submitted by David Stockton - 5 years ago
0

Hostname Filter

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Hashtags with russians symbols

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 5 years ago
0

postal code

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 5 years ago
0

category

PCRE (PHP <7.3)
regex for category separation and validation
Submitted by anonymous - 5 years ago
0

Clockify duration format parser

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Pivotal tracker ID extract

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Networking Parser - Command (show ip interface brief) - Platform (Cisco Switches/Routers)

Python
no description available
Submitted by anonymous - 5 years ago
0

Networking Parser - Command (show feature) - Platform (Cisco Nexus Switch)

Python
no description available
Submitted by anonymous - 5 years ago
0

Networking Parser - Command (show http-server) - Platform (Cisco Nexus Switch)

Python
no description available
Submitted by anonymous - 5 years ago
0

any number

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Find all letters and numbers and - in each line after the first - is encountered. Semantic Versioning 2.0.0 find everything after patch version

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Nginx Log Parsing

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

All Words Uppercase

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

SSL Cert name/value parser

PCRE (PHP <7.3)
Used to spllit lines of an SSL cert into name/value pairs
Submitted by anonymous - 5 years ago
1...372373374375376...902

Community Library Entry

-2

Regular Expression
PCRE (PHP <7.3)

/
([A-z])((?![A-z]{2,3}$)\w){2,3}
/
gm
Open regex in editor

Description

1.the string can be of lenght 3 or 4 2.the string should start with a alphabet 3.the string should contain atleast one alphabet and number.

Submitted by Kerwin - 9 years ago