Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

3

Validate Base64 with new lines (e.g. GPG base64 messages)

PCRE (PHP <7.3)
This regular expression validates if given string is formatted in Base64, additional it accepts new lines, since payload can have new lines in it.
Submitted by wpodgorski - 9 years ago
3

Get bad iframe (with white-list)

PCRE (PHP <7.3)
In (?!www.youtube.com\/|youtube.com\/|player.vimeo.com\/) u can add good sites for iframes: www.youtube.com/ player.vimeo.com/
Submitted by Resager - 9 years ago
3

Select all number greater than 36

PCRE (PHP <7.3)
no description available
Submitted by Mansoor - 9 years ago
3

Extract All Steam Keys

PCRE (PHP <7.3)
Extract all Steam Keys from a Given String
Submitted by Ashesh Kumar - 9 years ago
3

coffeescript operator

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
3

time format HH:mm

ECMAScript (JavaScript)
validates strings in time format HH:mm with hour in 24h format. only accepts up to 23:59
Submitted by Kelps Leite de Sousa - 9 years ago (Last modified a year ago)
3

Extract Java Exception Message Field

PCRE (PHP <7.3)
Exception Message: java.lang.NullPointerException: Sample Java Logback Exception at Sample.errorLevel3(Sample.java:35) at Sample.errorLevel2(Sample.java:31) at Sample.errorLevel1(Sample.java:27)...
Submitted by Amit - 9 years ago
3

Match text in square brackets

PCRE (PHP <7.3)
Drupal7 Media Element in node body - A regex to match the media module square bracketted token/element for embedde images in node body. Use case - using the body text trimmed in a meta description - need to remove the media element as well as strip tags.
Submitted by iAugur - 9 years ago
3

Get Headings From Markdown Format

ECMAScript (JavaScript)
Get all headings in a Markdown Format Text
Submitted by Ferdinand Dimas - 9 years ago
3

Get Hyperlinks From Markdown Format

PCRE (PHP <7.3)
Get all hyperlinks in a Markdown Format Text
Submitted by Ferdinand Dimas - 9 years ago
3

Récupérer la bonne information

PCRE (PHP <7.3)
Groupe d'information $1 $2 $3 $1 = Prénom + Nom $2 = (Information à récupérer ou à supprimer) $3 = Numéro de téléphone
Submitted by Terence DEMOL - 9 years ago
3

Removes duplicate lines in text editor

PCRE (PHP <7.3)
"dot matches newline" must be activated. Search and replace by "" (empty string) removes duplicate lines anywhere in text. Example for Notepad++ use shown under http://stackoverflow.com/questions/3958350/removing-duplicate-rows-in-notepad
Submitted by Stackoverflow user stema - 9 years ago
3

Firt letter of names capitalize with exceptions

ECMAScript (JavaScript)
Check if brazilian names are imputed correctly. Ex: Paulo da Silva
Submitted by William - 9 years ago
3

Remove br tags inside anchor tags

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
3

Non vowel words

ECMAScript (JavaScript)
/\b(+)\b/ig
Submitted by regexe - 9 years ago
3

TV Series filename parsing

PCRE (PHP <7.3)
Get TV Series name, season and episode numbers.
Submitted by anonymous - 9 years ago
3

iframe src parser

Python
Get iframe src
Submitted by Sumeet Fefar - 9 years ago
3

TTML time expression offset-time

PCRE (PHP <7.3)
no description available
Submitted by ovvland - 9 years ago
3

Remove _1 suffix from image filenames

PCRE (PHP <7.3)
Remove autogenerated file name suffixes from images whilst preserving the extension (e.g. .jpg) These suffixes are usually added when filename already exists in the directory an image is being saved to by an application. Magento is a fine example of a system that does this.
Submitted by John Hughes - 9 years ago
3

apache access log

PCRE (PHP <7.3)
parse the apache access log
Submitted by pagu - 9 years ago
1...884885886887888...901

Community Library Entry

3

Regular Expression
PCRE (PHP <7.3)

/
(?:(?:and|or|<<|>>>?|(?<!\()\/|[=!<>*%+\-&^])?=(?!>)|[!%&^*\/~<>?|:]|\-?\-(?!>)|\+\+?|<>|&&|\.\.\.?|\|\||\b(?<![\.\$])(instanceof|new|delete|typeof|and|or|is|isnt|not|super)(?!\s*:)\b)
/
g
Open regex in editor

Description

no description available

Submitted by anonymous - 9 years ago