Please enable JavaScript to use this web application.
Regular
Expressions
101
Social
Donate
Info
Regex Editor
Community Patterns
Account
Regex Quiz
Settings
Order By
Most Recent
Most upvotes
Most downvotes
Highest Score
Lowest Score
Filter by Flavor
PCRE2 (PHP >=7.3)
PCRE (PHP <7.3)
ECMAScript (JavaScript)
Python
Golang
Java 8
.NET 7.0 (C#)
Rust
Sponsors
There are currently no sponsors.
Become a sponsor today!
Community Patterns
Search among 11,540 community submitted regex patterns...
1
Add a string to a comma-separated list if not already in list
PCRE (PHP <7.3)
matches only lines that do not contain the string uses negative look arounds appends the new item always to the back suffers from a leading comma in case the list was empty
Submitted by
@ubunatic
-
8 years ago
1
Проверка повтора слов
PCRE (PHP <7.3)
От начала строки, разделенных пробелом
Submitted by
DocSS
-
8 years ago
1
match url
PCRE (PHP <7.3)
no description available
Submitted by
jakub
-
8 years ago
1
Compare two comma separated 4-digit years (first must be greater)
PCRE (PHP <7.3)
Compares two comma separated 4-digit years, and if the first one is greater, a match is returned. AUTHOR: Wiktor Stribizew SO PRofile: http://stackoverflow.com/users/3832970/wiktor-stribi%C5%BCew
Submitted by
Wiktor Stribizew
-
8 years ago
1
before or equal to 12:35pm
PCRE (PHP <7.3)
no description available
Submitted by
Brandon
-
8 years ago
1
match anything before 19-35pm
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
dawdw
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
IP username
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
LettersChangeNumber
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
Check sudoku
PCRE (PHP <7.3)
Check if a sudoku board is valid or not. The board has to be as a single line. Seen at http://codegolf.stackexchange.com/questions/78210/regex-golf-verify-a-sudoku-solution
Submitted by
anonymous
-
8 years ago
1
<Trigger R="\\aPC -?\d+ [^:]+:[^\\]+\\/a tells
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
Places Regex
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
/software version
PCRE (PHP <7.3)
only xxx , xxx.xxx and xxx.xxx.xxx are allowed
Submitted by
neha tiwari
-
8 years ago
1
g-test
PCRE (PHP <7.3)
little test for g modifier
Submitted by
anonymous
-
8 years ago
1
Cucumber feature regex
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
Regex ID from Gifs.com URLs
PCRE (PHP <7.3)
no description available
Submitted by
gif, gifs
-
8 years ago
1
Find line and insert under it
Python
Finds a line and appends the replacement below it. Tries to preserve indentation (tabs or spaces) and to avoid duplicate replacements. I used it in Sublime Text to batch edit several instances of a JS config object across several files.
Submitted by
anonymous
-
8 years ago
1
Stone
PCRE (PHP <7.3)
Stone Stuff
Submitted by
mralves
-
8 years ago
1
CUW - Remarketing List
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
8 years ago
1
log
PCRE (PHP <7.3)
no description available
Submitted by
lattis
-
8 years ago
1
...
124
125
126
127
128
...
577
Community Library Entry
0
Regular Expression
PCRE (PHP <7.3)
/
^
(
(?:
[
A
-
Za
-
z0
-
9+
]
+
)
(?:
[
._-
]
{1}
[
A
-
Za
-
z
]
+
)*
)
(
[
._-
]
{1}
(?:
[
+
-
_
\d
A
-
Za
-
z.
]
*
)*
)*
$
/
gm
Open regex in editor
Description
Splitting Additionalname in Basename and Specification
Submitted by
JK
-
a year ago
(Last modified a year ago)