Regular Expressions 101

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Community Patterns

6

Repair unquoted HTML attribute values

PCRE (PHP <7.3)
Usually MSWord HTML exports
Submitted by Ka. - 12 years ago
8

Validate Base64 single-line string

PCRE (PHP <7.3)
no description available
Submitted by ka. - 12 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
4

Strip multi-line (star) comments from JavaScript, while leaving any CDATA sections intact.

PCRE (PHP <7.3)
This regular expression removes multi-line (star) comments from JavaScript, while leaving any CDATA sections intact. Use the global (g) modifier to match them all (if you plan to use PHP's preg_replace, the g modifier is not necessary), and use the (s) modifier to make dots match newlines (this will...
Submitted by Dane MacMillan - 12 years ago
2

MIME type verification

PCRE (PHP <7.3)
See http://tools.ietf.org/html/rfc2045#section-5.1
Submitted by Erin Millard - 12 years ago
1

PHP ReflectionParameter:__toString() parser

PCRE (PHP <7.3)
See http://www.php.net/manual/en/reflectionparameter.tostring.php
Submitted by Erin Millard - 12 years ago
13

PHP variable name

PCRE (PHP <7.3)
Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php
Submitted by Erin Millard - 12 years ago
52

Disorted Email Addresses

PCRE (PHP <7.3)
Matches distorted email addresses and converts them back to real ones.
Submitted by dislick - 12 years ago
40

URL regexp

PCRE (PHP <7.3)
A quite neat regular expression for URLs, e-mails..., I found on Matthew O'Riordan's blog.
Submitted by Matthew O'Riordan - 12 years ago
1...900901902

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
^[^\p{L}:]|.[^\p{L}0-9:\-_]|[^\p{L}0-9]$
/
u
Open regex in editor

Description

This version of the regex is less permissive than the w3c documentation.. It matches only the common attribute syntax.

Submitted by bye-csavier - 8 months ago