Regular Expressions 101

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Community Patterns

-2

Remove empty HTML tags

PCRE (PHP <7.3)
Removes empty HTML tags. Was needed for old input clean-up and to keep a HTML parses from crashing. Looking for improvement on bottom test.
Submitted by R. Sartorius - 11 years ago
3

Task 2, part 1

PCRE (PHP <7.3)
Finds all source numbers in square brackets
Submitted by Kovalev Evgeny - 11 years ago
4

Task 1

PCRE (PHP <7.3)
Finds a happy smile, except sad one
Submitted by Kovalev Evgeny - 11 years ago
1

Task 1

PCRE (PHP <7.3)
no description available
Submitted by Kovalev Evgeny - 11 years ago
1

srt

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
0

Splits jquery selector, 2nd part is selector of last element

ECMAScript (JavaScript)
no description available
Submitted by Uzair Farooq - 11 years ago
1

example regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

parse SQL statements and get values

PCRE (PHP <7.3)
but it does not work. How do I make it work? It will be used in C#
Submitted by anonymous - 11 years ago
1

match up to -

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
0

Improved regex101 ID grabber (fixed)

PCRE (PHP <7.3)
no description available
Submitted by Oleksandr Sochka - 11 years ago
0

IMAP Status Response with MESSAGE and UNSEEN count

PCRE (PHP <7.3)
Matches the folder name (as IMAP ATOM, Quoted String or Literal String) and folder message total and unseen count.
Submitted by Mike Johnson - 11 years ago
1

a^n b^n

PCRE (PHP <7.3)
no description available
Submitted by Oleksandr Sochka - 11 years ago
1

Divisible by 3 numbers

PCRE (PHP <7.3)
no description available
Submitted by Oleksandr Sochka - 11 years ago
1

Phone numbers matcher

PCRE (PHP <7.3)
no description available
Submitted by Oleksandr Sochka - 11 years ago
1

Singular or Plural

ECMAScript (JavaScript)
no description available
Submitted by Gavin Jackson - 11 years ago
-4

Date with this format YYYY-MM-DD and year start 20 or 21

PCRE (PHP <7.3)
Date with this format YYYY-MM-DD and year start 20 or 21 like 2014
Submitted by cisc0 - 11 years ago
0

Date with this format YYYY-MM-DD and year start 20 or 21

PCRE (PHP <7.3)
Date with this format YYYY-MM-DD and year start 20 or 21 like 2014-12-12
Submitted by cisc0 - 11 years ago
2

US and Canada Regex

ECMAScript (JavaScript)
A zipcode regex for validation of both US and Canada
Submitted by Kyle M. - 11 years ago
1

Switzerland UID id

PCRE (PHP <7.3)
matches the Swiss government's UID id for enterprises
Submitted by marcel - 11 years ago
0

decimal numbers

PCRE (PHP <7.3)
match decimal numbers with sign
Submitted by mariano_dm - 11 years ago
1...894895896897898...902

Community Library Entry

0

Regular Expression
ECMAScript (JavaScript)

/
^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$
/
Open regex in editor

Description

ip-v4

Submitted by anonymous - 5 years ago