Regular Expressions 101

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Community Patterns

11

Date(Including Leap Year) YYYY-MM-DD hh:mm:ss

PCRE (PHP <7.3)
Validates DateTime of format YYYY-MM-DD hh:mm:ss including Leap Year
Submitted by Madhan - 11 years ago
-2

Match v4 IP address

PCRE (PHP <7.3)
no description available
Submitted by Budiony Damyanov - 11 years ago
4

Hungarian ANDOK system id

PCRE (PHP <7.3)
no description available
Submitted by Tana - 11 years ago
6

ID003 device info

PCRE (PHP <7.3)
no description available
Submitted by sasjaq - 11 years ago
-2

[A-Z]+[a-z]{1,2}[0-9]*

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
3

Outside Quotes

ECMAScript (JavaScript)
match any string outside of single or double quotes
Submitted by anonymous - 11 years ago
2

Find 'console.' but not 'console.log'

ECMAScript (JavaScript)
no description available
Submitted by Jay Johnson - 11 years ago
1

Find UnCommented Console. Code

ECMAScript (JavaScript)
no description available
Submitted by Jay Johnson - 11 years ago
-2

A masz!

PCRE (PHP <7.3)
no description available
Submitted by Ja - 11 years ago
-2

failed attempt

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

Test Listing Parser

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

Ukazka

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

Strip ANSI escape characters

Python
no description available
Submitted by anonymous - 11 years ago
-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...893894895896897...902

Community Library Entry

0

Regular Expression
Python

r"
^(\d{4}(-?\d\d){2})[tT]?((\d\d:?){1,2}(\d\d)?(.\d{3})?([zZ]|[+-](\d\d):?(\d\d)))?$
"
gm
Open regex in editor

Description

designed to work specifically with the parser of the python dateutil package

Submitted by anonymous - 8 years ago