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 2,420 community submitted regex patterns...
0
Library catalogue (VTECH V-Lib)
Python
Matches entries in a library catalogue.
Submitted by
anonymous
-
a year ago
1
...
119
120
121
Community Library Entry
0
Regular Expression
.NET 7.0 (C#)
@"
(?<!
^
)
(?=
[
A
-
Z
]
[
a
-
z
]
)
|
(?<=
[
a
-
z
]
)
(?=
[
A
-
Z
]
)
"
g
Open regex in editor
Description
Splits camel-case string and preserves acronyms
Submitted by
Tyler S.
-
a year ago