Regular Expressions 101

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Community Patterns

0

regexGetAccount

ECMAScript (JavaScript)
(Element CI: )\d{4}
Submitted by raphael - 2 years ago
0

test1

PCRE (PHP <7.3)
test1
Submitted by anonymous - 2 years ago
0

Email validation regex

Python
This email validation regex works perfectly (99.99%) for validating email address entries. The regex does not match email addresses with with the following characteristics: Addresses that begin/end with a special character Addresses with consecutive repeated special characters ...
Submitted by Bright Owusu - 2 years ago (Last modified 2 years ago)
0

PHP quoted string constants parse

PCRE2 (PHP >=7.3)
Sometime we need to quickly parse PHP code. When no reason to use full AST parser, we can use regular expressions for find constants.
Submitted by Slava Krampetz - 2 years ago
0

test

PCRE2 (PHP >=7.3)
test
Submitted by anonymous - 2 years ago
0

Bandwidth value validation

Python
Bandwidth value validation: 1-1023K 1-1023M 1-40G
Submitted by Damien Stuart - 2 years ago
1

Markdown link

.NET 7.0 (C#)
Regex for parsing markdown link. Named group "text", "url" and "alt.
Submitted by anonymous - 2 years ago
0

Descbuilder

PCRE2 (PHP >=7.3)
Filtr indeksów monitorów wg regexp
Submitted by HSI - 2 years ago
0

Echo

ECMAScript (JavaScript)
Usage of named capture group.
Submitted by Abitwhy - 2 years ago (Last modified 2 years ago)
0

HTML

PCRE2 (PHP >=7.3)
This regular expression can be used to verify html (by removing the anchor before pair), as well as extract elements of html (specify elements before the pair).
Submitted by Yubo - 2 years ago
0

my_regex

PCRE2 (PHP >=7.3)
sample regex expression
Submitted by anonymous - 2 years ago
1

telephone_founder

Python
with obfuscation
Submitted by anonymous - 2 years ago
0

Bangladeshi Mobile and Telephone Number

Java 8
Matches with Bangladeshi Mobile and Telephone Numbers
Submitted by kaziNAHIAN - 2 years ago
0

Not ending with file ending

PCRE2 (PHP >=7.3)
Not ending with png svg or jpg
Submitted by anonymous - 2 years ago
0

回溯条件查找

PCRE2 (PHP >=7.3)
java 似乎不支持 回溯条件查找
Submitted by anonymous - 2 years ago
0

trova percorsi con immagini in un dominio

PCRE2 (PHP >=7.3)
usato per fabbricatorino e sostituzione llaravel asset
Submitted by anonymous - 2 years ago
0

telephone_finder

Python
[-+ ]?[178]?[ ]?\d[ ]?\d[ ]?\d[ ]?\d[ ]?\d[ ]?\d[ ]?
Submitted by anonymous - 2 years ago
0

SQL Processes Filter

PCRE2 (PHP >=7.3)
Pattern to detect certain SQL queries in the PROCESSLIST results.
Submitted by anonymous - 2 years ago
1

extract url from html markdown

PCRE2 (PHP >=7.3)
222
Submitted by seocringe - 2 years ago
0

ru-urls-to-ua

PCRE2 (PHP >=7.3)
Как превратить русские URL в украинские? Формула в Google Sheets =regexreplace(B20;"ua(\/)";"ua\/ua\/")
Submitted by @seocringe - 2 years ago
1...127128129130131...902

Community Library Entry

0

Regular Expression
Python

r"
((^[a-zA-Z0-9]+)(([_]?)|([.]|[-])?[a-zA-Z0-9]+)*@([a-zA-Z0-9]+)(([_]?)|([.]|[-])?[a-zA-Z0-9]+)*\.[a-zA-Z0-9]{2,}$)
"
gm
Open regex in editor

Description

This email validation regex works perfectly (99.99%) for validating email address entries.

The regex does not match email addresses with with the following characteristics:

  • Addresses that begin/end with a special character
  • Addresses with consecutive repeated special characters

Special characters matched are:

  • Period (".")
  • Hyphen ("-")
  • Underscore ("_")

https://regex101.com/r/0NVXwu/1

Submitted by Bright Owusu - 2 years ago (Last modified 2 years ago)