Regular
Expressions
101
Please wait while the app is loading...
Please enable JavaScript to use this web application.
Regular
Expressions
101
@regex101
Donate
Sponsor
Contact
Bug Reports & Feedback
Wiki
What's new?
What's new?
Loading content...
Close
Regex Editor
Regex Editor
Regex Library
Regex Library
Account
Account
Regex Quiz
Regex Quiz
Settings
Settings
Live Help
Live Help
Order By
Most Recent
Most Points
Fewest Points
Filter by Flavor
PCRE2
PCRE
ECMAScript
Python
Golang
Java
.NET
Sponsors
All your environment variables, in one place
Library entries
Search library
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
LG G3
LG G3 Device identifier:LG-D855, LG-D851, LG-D850, VS985 4G, LGLS990, LGUS990, LG-D852
Submitted by
guy sandler
-
8 years ago
-2
1 upvotes, 3 downvotes (25% like it) (You must be signed in to vote)
python
filter
no description available
Submitted by
anonymous
-
8 years ago
1
2 upvotes, 1 downvotes (67% like it) (You must be signed in to vote)
javascript
Console.log line deletion, multi line.
no description available
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
Simplistic email
no description available
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
youtube video id
any format, check domain to make sure it's a youtube url
Submitted by
Mantish
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
To Be Or Not To Be
no description available
Submitted by
DawnBridge
-
8 years ago
1
3 upvotes, 2 downvotes (60% like it) (You must be signed in to vote)
javascript
Simple Valid File Names
Simple file names. Special chars allowed (-_.) {3, 40}
Submitted by
CADII
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
replace directive with iife
no description available
Submitted by
anonymous
-
8 years ago
0
1 upvotes, 1 downvotes (50% like it) (You must be signed in to vote)
python
pass
no description available
Submitted by
anonymous
-
8 years ago
1
2 upvotes, 1 downvotes (67% like it) (You must be signed in to vote)
python
Email id
no description available
Submitted by
anonymous
-
8 years ago
0
1 upvotes, 1 downvotes (50% like it) (You must be signed in to vote)
javascript
float
no description available
Submitted by
anonymous
-
8 years ago
0
1 upvotes, 1 downvotes (50% like it) (You must be signed in to vote)
javascript
Machine readable passport number (second line)
Second line of the machine readable passport, based on the excellent article here - http://www.highprogrammer.com/alan/numbers/mrp.html
Submitted by
Leigh Garland
-
8 years ago
-2
0 upvotes, 2 downvotes (0% like it) (You must be signed in to vote)
python
checklists item
checklists item
Submitted by
Tobias Hochgürtel
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
Get directive names from javascript code
Get directive names from javascript code
Submitted by
OnlineCop
-
8 years ago
1
2 upvotes, 1 downvotes (67% like it) (You must be signed in to vote)
javascript
file extension
get the file extension of a given filename
Submitted by
Simon Taylor
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
python
re
no description available
Submitted by
anonymous
-
8 years ago
0
1 upvotes, 1 downvotes (50% like it) (You must be signed in to vote)
javascript
SharePoint File Name Vaidation
The file name validation algorithm from MS KB905231, I assumed the prohibited suffixes included the file extension. I.e. 'foo.doc.files' would not match but 'foo.files.doc' would.
Submitted by
David Nelson
-
8 years ago
-2
2 upvotes, 4 downvotes (33% like it) (You must be signed in to vote)
python
finds the instance of two or more repeating letters
no description available
Submitted by
cp0153
-
8 years ago
1
2 upvotes, 1 downvotes (67% like it) (You must be signed in to vote)
javascript
Date format
date should be in format YYYYMMDDHHMMSS
Submitted by
Prashant Kumar Dubey
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
python
fact refactor
no description available
Submitted by
anonymous
-
8 years ago
1
...
250
251
252
253
254
255
256
...
277
UK (Europe) DateTime
Vote
-2
1 upvotes, 3 downvotes (25% like it) (You must be signed in to vote)
Regular Expression
javascript
/
^
(
(
(
(
31
[
-
/.
]
(
0
?
[
13578
]
|
1
[
02
]
))
|
((
29
|
30
)
[
-
/.
]
(
0
?
[
1,3
-
9
]
|
1
[
0
-
2
]
))
)
[
-
/.
]
(
1
[
6
-
9
]
|
[
2
-
9
]
\d
)?
\d
{2}
)
|
(
29
\/
0
?
2
[
-
/.
]
(
((
1
[
6
-
9
]
|
[
2
-
9
]
\d
)?
(
0
[
48
]
|
[
2468
]
[
048
]
|
[
13579
]
[
26
]
)|
((
16
|
[
2468
]
[
048
]
|
[
3579
]
[
26
]
)
00
))
)
)
|
(
0
?
[
1
-
9
]
|
1
\d
|
2
[
0
-
8
]
)
[
-
/.
]
(
(
0
?
[
1
-
9
]
)
|
(
1
[
0
-
2
]
)
)
[
-
/.
]
(
(
1
[
6
-
9
]
|
[
2
-
9
]
\d
)?
\d
{2}
)
)
(
20
|
21
|
22
|
23
|
[
0
-
1
]
?
\d
)
:
[
0
-
5
]
?
\d
:
?
[
0
-
5
]
?
\d$
/
Open regex in editor
Description
Loading markdown...
Submitted by
Bascoder
- 8 years ago