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 18,040 community submitted regex patterns...
0
L0 Auto Import - PowerSchool File Names
PCRE (PHP <7.3)
Parse PowerSchool filenames used in NYS SIRS Exported files
Submitted by
anonymous
-
6 years ago
0
Group
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Telephone
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
FIO
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
111
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
FIO
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Text to Columns
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
This is called a negated lookbehind.
PCRE (PHP <7.3)
Matches x only if x is not preceded by y.This is called a negated lookbehind. For example, /(?<!-)\d+/ matches a number only if it is not preceded by a minus sign. /(?<!-)\d+/.exec('3') matches "3". /(?<!-)\d+/.exec('-3') match is not found because the number is preceded by the minus sign.
Submitted by
anonymous
-
6 years ago
0
PRODUCAO DD/MM/YYYY A|a|e|TO|HASTA DD/MM/YYYY
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
PRODUCAO MM/YYYY A|a|e|TO|HASTA MM/YYYY
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
VENCIMENTO DD/MM/YYYY A|a|e|TO|HASTA DD/MM/YYYY
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Regex para validar data (trata ano bissexto)
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Regex to validate dates (validate leap year)
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Validaing numbers other than 0
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Excel to DB
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
NANPA TN Including X11 without 555
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Clearswift Mail Gateway
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
IP addresses
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
COM
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Financial for HA
ECMAScript (JavaScript)
Finds the Financial line of the Hazard Analysis.
Submitted by
anonymous
-
6 years ago
1
...
226
227
228
229
230
...
902
Community Library Entry
1
Regular Expression
PCRE (PHP <7.3)
/
(
[
Mm
]
on
|
[
Tt
]
(?:
hurs
|
ues
)
|
[
Ww
]
ednes
|
[
Ff
]
ri
|
[
Ss
]
(?:
un
|
atur
)
)
(?:
|
,
|
day
(?:
|
,
|
(?:
'
|)
s
)
)
|
[
Ee
]
veryday
|
[
Ww
]
eekday
|
[
Ww
]
eekend
/
g
Open regex in editor
Description
Given a string, finds the days spoken about within the string. (US Implementation)
Submitted by
anonymous
-
8 years ago