Regular Expressions 101

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Community Patterns

1

Get inside single/double quotes

PCRE (PHP <7.3)
Get everything inside single/double quotes and ignoring escaped ones
Submitted by Jerry - 11 years ago
3

SQL select columns

PCRE (PHP <7.3)
no description available
Submitted by Phan - 11 years ago
-1

regex on paintkits

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
2

Basic Phone Number Verification

PCRE (PHP <7.3)
Verifies a phone number
Submitted by anonymous - 11 years ago
1

Parse DateTimes

PCRE (PHP <7.3)
Will parse a DateTime and group the results. Probably pretty limited but it works for me.
Submitted by martin - 11 years ago
29

Wrap long string to spec length

PCRE (PHP <7.3)
no description available
Submitted by fullpipe - 11 years ago
4

Prime number regex

PCRE (PHP <7.3)
no description available
Submitted by originally "Abigail", comp.lang.perl.misc - 11 years ago
1

Twitter Hashtags

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-1

Twitter Hashtags

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
3

Match quoted strings, ignoring escaped quotes

PCRE (PHP <7.3)
Matches single or double quoted strings, and ignores backslash-escaped quotes within the string.
Submitted by Maddingue - 11 years ago
6

Repair unquoted HTML attribute values

PCRE (PHP <7.3)
Usually MSWord HTML exports
Submitted by Ka. - 11 years ago
8

Validate Base64 single-line string

PCRE (PHP <7.3)
no description available
Submitted by ka. - 11 years ago
18

Date: DD-MM-YYYY hh:mm:ss

Recommended
PCRE (PHP <7.3)
Validate and capture dateTime parts, includes validation for leap years, range 1000-2999. Fixed bug
Submitted by Ka. - 12 years ago
0

DateTime: DD-MM-YYYY HH:mm:ss

PCRE (PHP <7.3)
Validate and Capture (in 1000-2999 range) Leap-Year Correct
Submitted by anonymous - 12 years ago
-18

dd-mm-YYYY HH:mm:ss (year range 1000-2999)

PCRE (PHP <7.3)
Validate Gregorian calendar dates that contain 24-hour times. This will also correctly match the Feb 29 date when it falls on a valid leap year. Leap years occur every 4 years, with one exception: when a year is evenly divisible by 100 but not evenly divisible by 400, the year will not be a leap ye...
Submitted by Ka. - 12 years ago (Last modified a year ago)
2

js function test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 12 years ago
4

1st TSV

PCRE (PHP <7.3)
no description available
Submitted by DynV - 12 years ago
1

Table Purgatory

PCRE (PHP <7.3)
A regex to find all nowrap text occurrences and name all the groups involved in preparation for a replacement pass
Submitted by Joe Hacobian - 12 years ago
4

Strip out domain extensions except for Microsoft .net technologies.

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 12 years ago
4

For Auto RTFs

PCRE (PHP <7.3)
no description available
Submitted by Dan Bloomquist - 12 years ago
1...898899900901

Community Library Entry

1

Regular Expression
Rust

r"
\[(?:http://|https://)*(?:\w+\.)*(\w+(?:\.(?:com|org|net|edu|gov|info|biz|io|co|app|co|uk|de|jp|ca|dev|app|gg))+)]\((?:http://|https://)(?:\w+\.)+\w+(?:/\w+)*\)
"
gm
Open regex in editor

Description

This regex catches markdown links where the display text is also a link, like this: [example.com](https://malicious.link) in order to prevent people getting tricked and clicking on a link that isn't what it says it is.

See the test string for a much longer explanation with examples.

Submitted by Osh - 7 months ago (Last modified 7 months ago)