Regular Expressions 101

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Community Patterns

0

First Line

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

Date Validation - Including Leap Year (mm/dd/yyyy)

ECMAScript (JavaScript)
This regex validates all dates between 01/01/1900 and 12/31/2099, including leap-year validation. It follows a mm/dd/yyyy format, and enforces two-digit month/year formats.
Submitted by anonymous - 5 years ago
0

Date Validation - Including Leap Year (m/d/yyyy)

PCRE (PHP <7.3)
This regex validates all dates between 1/1/1900 and 12/31/2099, including leap-year dates. It allows either one or two digit month/date values.
Submitted by anonymous - 5 years ago
0

Find a word (Case-Insensitive)

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

IPv4 validation

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

IPv6 validation

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

Match Valid IPv4 and IPv6

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

HackerRank - Forward References

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

点运算符 .

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

HackerRank - Branch Reset Groups

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

Regex validate PIN code (Solution www.codewars.com)

ECMAScript (JavaScript)
Regex validate PIN code (Solution www.codewars.com) https://www.codewars.com/kata/regex-validate-pin-code/javascript
Submitted by anonymous - 5 years ago
1

Replace :parameters on route navigation

PCRE (PHP <7.3)
Lets modify a route dinamically from any word that starts with ':' until the next slash
Submitted by anonymous - 5 years ago
0

Gerrit Interactive Link

PCRE (PHP <7.3)
This is used as a general rule to create an interactive link to JIRA
Submitted by anonymous - 5 years ago
0

Python list indexing

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

Match Time

Python
no description available
Submitted by anonymous - 5 years ago
1

Basic Email Regex

PCRE (PHP <7.3)
matches any letters or numbers '-' '_' '.' in prefix @ letters or numbers '-' in domain . 2 or 3 letters in suffix useful for getting emails from files that include emails
Submitted by anonymous - 5 years ago
0

Detect Js string

Python
Regex to detect string of js
Submitted by anonymous - 5 years ago
0

Add NULL if no date at the end

PCRE (PHP <7.3)
Regex for detecting lines that don't have a date before closing parentheses. It uses a negative lookahead.
Submitted by anonymous - 5 years ago
0

USAddressRegex

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

ssnRegex

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

0

Regular Expression
ECMAScript (JavaScript)

/
^(?:(?:(?:0[13578]|1[02])(\/)31)\1|(?:(?:0[1,3-9]|1[0-2])(\/)(?:29|30)\2))(?:(?:19|[2-9]\d)\d{2})$|^(?:02(\/)29\3(?:(?:(?:19|20)(?:[02468][048]|[13579][26]))))$|^(?:(?:0[1-9])|(?:1[0-2]))(\/)(?:0[1-9]|1\d|2[0-8])\4(?:(?:19|[0-9]\d)?\d{2})$
/
gm
Open regex in editor

Description

This regex validates all dates between 01/01/1900 and 12/31/2099, including leap-year validation. It follows a mm/dd/yyyy format, and enforces two-digit month/year formats.

Submitted by anonymous - 5 years ago