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Community Patterns
Search among 18,040 community submitted regex patterns...
238
Matching email addresses per RFC5322
PCRE (PHP <7.3)
The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.
Submitted by
Michael Musson
-
11 years ago
483
regex101.com permalink id grabber
PCRE (PHP <7.3)
Grabs the ID for the regex101.com permalink code. If a revision number is provided, grab that as well.
Submitted by
chris mccoy
-
11 years ago
(Last modified 8 months ago)
1
...
900
901
902
Community Library Entry
0
Regular Expression
.NET 7.0 (C#)
@"
^
(
25
[
0
-
5
]
|
2
[
0
-
4
]
[
0
-
9
]
|
[
01
]
?
[
0
-
9
]
[
0
-
9
]
?
)
\.
(
25
[
0
-
5
]
|
2
[
0
-
4
]
[
0
-
9
]
|
[
01
]
?
[
0
-
9
]
[
0
-
9
]
?
)
\.
(
25
[
0
-
5
]
|
2
[
0
-
4
]
[
0
-
9
]
|
[
01
]
?
[
0
-
9
]
[
0
-
9
]
?
)
\.
(
25
[
0
-
5
]
|
2
[
0
-
4
]
[
0
-
9
]
|
[
01
]
?
[
0
-
9
]
[
0
-
9
]
?
)
(?:
:
(
\d
|
[
1
-
9
]
\d
{1,3}
|
[
1
-
5
]
\d
{4}
|
6
[
0
-
4
]
\d
{3}
|
65
[
0
-
4
]
\d
{2}
|
655
[
0
-
2
]
\d
|
6553
[
0
-
5
]
)
)?
$
"
Open regex in editor
Description
ipv4 with optional port
Submitted by
anonymous
-
2 years ago