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Popular Regular Expression Snippets

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Regular Expression Apache redirect from domain.com to www.domain.com

apache

9 873 posted 16 years ago by therobot

Regular Expression Convert whitespace to underscores

regex

6 622 posted 16 years ago by lagrangeapex

Regular Expression Find CSS Style Names

css
regex

5 697 posted 14 years ago by mocha0range

Regular Expression JS Email Validation

regex

5 805 posted 16 years ago by beforebeta

Regular Expression Grab an html tag and leave just the content

html

5 722 posted 16 years ago by rhlowe

Regular Expression Useful regular expressions

regex

4 661 posted 14 years ago by vagrantradio

Regular Expression Find CSS Attributes

css
regex

4 1263 posted 14 years ago by mocha0range

Regular Expression Find CSS Style Definitions

css
regex

4 648 posted 14 years ago by mocha0range

Regular Expression Regular expression: catch img src attribute in html

html

4 1431 posted 15 years ago by albertomori

Regular Expression Regular Expression to Grab the Content of an XML Element

xml

4 1079 posted 16 years ago by rengber

Regular Expression The Best Email RegEx (yet)

email
regex

3 766 posted 13 years ago by nkm

Regular Expression RegEx to find replace in TextMate

3 930 posted 13 years ago by rwczippy

Regular Expression Regular Expressions For URI Validation/Parsing

3 5089 posted 15 years ago by wizard04

Regular Expression Prime number tester

regex

3 691 posted 15 years ago by banzaiman

Regular Expression Grab any unclosed XHTML img tags

regex
xhtml

3 697 posted 15 years ago by egoens

Regular Expression Hexadecimal Value

regexp

3 642 posted 17 years ago by Corhol

Regular Expression Regex - Match IPv6 address

2 1276 posted 13 years ago by dmertl

Regular Expression Regex - Match IPv4 address

2 1494 posted 13 years ago by dmertl

Regular Expression Number Match in Larger Context

regex

2 697 posted 13 years ago by joelhaus

Regular Expression Valid phone number

phone
regex

2 621 posted 14 years ago by devision

Regular Expression RFC 2822 Email Validation

2 1383 posted 14 years ago by pacey

Regular Expression RFC 2822-compliant (mostly) Email Address Regular Expression

email

2 869 posted 14 years ago by chrisdpratt

Regular Expression Strong Password RegEx

regex

2 668 posted 14 years ago by axelitus

Regular Expression IBAN regex (all IBANs)

regex

2 7573 posted 14 years ago by resurge

Regular Expression RegExp: Catch HTML element

html
regexp

2 680 posted 15 years ago by albertomori

Regular Expression Regex for matching floating point number

regex

2 688 posted 15 years ago by hoffstein

Regular Expression regex to trim data from beginning of a line

regex

2 734 posted 15 years ago by jhenry

Regular Expression Match CSS and JS Comments

2 1123 posted 15 years ago by mikegreen

Regular Expression US Phone Number with extension, flexible

2 1617 posted 16 years ago by martinkas

Regular Expression Give headings IDs

html

2 438 posted 16 years ago by lagrangeapex

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