Regular Expressions 101

Save & Share

  • Regex Version: ver. 2
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)\<li\>D.*?de\:.*?\(([\+\-]?\d*)\s*siden" Local $sString = "<link rel="canonical" href="https://nyheder.tv2.dk/samfund/2020-10-11-nyeste-coronatal-fra-danmark-og-verden-saa-mange-er-smittede-doede-og-indlagte" />" & @CRLF & _ " </head>" & @CRLF & _ " <body>" & @CRLF & _ " <div class="tc_root" id="root">" & @CRLF & _ " <header class="tc_header tc_header--color-base-red" data-adobe-context="menu" aria-label="Global top"><div class="tc_deck tc_deck--gapless tc_deck--full"><div class="tc_header__global"><div class="tc_header__skip"><a href="#main" class="tc_header__skip__link">Hop til indhold</a></div><a href="https://tv2.dk" class="tc_header__logo" title="Gå til forsiden af tv2.dk"><svg class="tc_icon__tv2logo" xmlns="http://www.w3.org/2000/svg" width="90" height="40" viewBox="0 0 90 40"><title>TV 2 Logo</title><path d="M89.992 10.172c.3 7.647-8.03 14.59-16.056 14.59h-20.62l5.656-8.324c.44-.663 1.464-1.2 2.274-1.2H75.57c1.847 0 3.85-1.693 3.666-3.555-.155-1.495-1.364-2.144-2.657-2.16H44.55L50.205 1.2C50.66.535 51.668 0 52.478 0h26.26c5.657 0 11.014 4.135 11.254 10.172zm-51.81-1.847L43.84 0H7.93c-.797 0-1.82.536-2.274 1.2L0 9.522h35.91c.81 0 1.82-.535 2.273-1.198zM17.877 40h16.27c.796 0 1.82-.535 2.274-1.2l16-23.562h-10.3c-.797 0-1.82.537-2.275 1.2L25.763 37.164l2.33-21.926h-10.67L15.12 36.966C14.95 38.646 16.17 40 17.876 40zm61.076-1.213l5.655-8.325H50.9c-.795 0-1.818.538-2.272 1.2l-5.657 8.325H76.68c.81.013 1.833-.522 2.274-1.2z"></path></svg></a><nav class="tc_header__global__nav" aria-label="Global top"><ul class="tc_header__global__list"><li class="tc_header__global__list__item tc_header__global__list__item--menu"><a class="tc_header__global__list__link" href="https://tv2.dk/navigation" data-navigation-overlay-url="https://navigation.services.tv2.dk/html/navigation" role="button" aria-haspopup="true" aria-expanded="false" aria-controls="navigation-overlay"><span class="tc_header__global__list__text">Menu</span><svg class="tc_icon__menu__open" xmlns="http://www.w3.org/2000/svg" width="21" height="21" viewBox="0 0 21 21"><path d="M.7 3h19.5c.5 0 .8-.7.8-1.5S20.7 0 20.3 0H.7C.3 0 0 .7 0 1.5S.3 3 .7 3zm19.6 6H.7c-.4 0-.7.7-.7 1.5S.3 12 .7 12h19.5c.5 0 .8-.7.8-1.5S20.7 9 20.3 9zm0 9H.7c-.4 0-.7.7-.7 1.5S.3 21 .7 21h19.5c.5 0 .8-.7.8-1.5s-.3-1.5-.7-1.5z"></path></svg><svg class="tc_icon__menu__close" xmlns="http://www.w3.org/2000/svg" width="21" height="21" viewBox="0 0 21 21"><path d="M11.5 10.5l9.3-9.2c.3-.3.3-.7 0-1-.3-.3-.7-.3-1 0l-9.3 9.2L1.3.2C1 0 .5 0 .2.2 0 .5 0 1 .2 1.3l9.2 9.2-9.2 9.2c-.3.3-.3.7 0 1 .2.3.4.3.6.3s.4 0 .5-.2l9.2-9.2 9.2 9.2c.2.2.4.2.5.2.2 0 .4 0 .5-.2.3-.3.3-.7 0-1l-9.2-9.3z"></path></svg></a></li><li class="tc_header__global__list__item tc_header__global__list__item--login"><a href="https://mit.tv2.dk" class="tc_header__global__list__link" aria-label="TV 2 Login"><svg class="tc_icon__login" xmlns="http://www.w3.org/2000/svg" width="21" height="21" viewBox="0 0 21 21"><path d="M15.82 9.82c.68-1.03 1.02-2.2 1.02-3.47C16.85 2.83 14.02 0 10.5 0S4.15 2.83 4.15 6.35c0 1.27.39 2.49 1.02 3.47C2.1 11.67 0 15.04 0 18.9v.39C0 20.22.78 21 1.71 21h17.58c.93 0 1.71-.78 1.71-1.71v-.39c0-3.86-2.1-7.23-5.18-9.08zM10.5 1.47c2.69 0 4.88 2.2 4.88 4.88s-2.2 4.88-4.88 4.88-4.88-2.19-4.88-4.88 2.19-4.88 4.88-4.88zm9.04 17.82c0 .15-.1.24-.24.24H1.71c-.15 0-.24-.1-.24-.24v-.39c0-3.42 1.9-6.4 4.69-7.91 1.12 1.08 2.69 1.71 4.35 1.71s3.22-.68 4.35-1.71c2.78 1.56 4.69 4.49 4.69 7.91v.39z"></path></svg></a></li><li class="tc_header__global__list__item tc_header__global__list__item--search"><a href="https://search.tv2.dk/" class="tc_header__global__list__link" aria-label="Søg på tv2.dk"><svg class="tc_icon__search" xmlns="http://www.w3.org/2000/svg" width="21" height="21" viewBox="0 0 21 21"><path d="M20.8 19.8l-6.5-6.5c1.2-1.4 1.9-3.2 1.9-5.2C16.1 3.6 12.5 0 8.1 0 3.6 0 0 3.6 0 8.1c0 4.4 3.6 8.1 8.1 8.1 2 0 3.8-.7 5.2-1.9l6.5 6.5c.1.1.3.2.5.2s.4-.1.5-.2c.3-.3.3-.8 0-1M1.5 8.1c0-3.6 3-6.6 6.6-6.6s6.6 3 6.6 6.6c0 1.8-.7 3.5-1.9 4.7-1.2 1.2-2.8 1.9-4.7 1.9-3.7 0-6.6-3-6.6-6.6"></path></svg></a></li><li class="tc_header__global__list__item tc_header__global__list__item--play"><a href="https://play.tv2.dk" class="tc_header__global__list__link" aria-label="TV 2 PLAY"><svg class="tc_icon__play" xmlns="http://www.w3.org/2000/svg" width="109" height="14" viewBox="0 0 109 14"><path d="M4.3 3.6H0V.3h12.3v3.3H8.1V14H4.3V3.6zM14.5.3h4.1l2.8 9.3L24.2.3h4.1L23.5 14h-4.2L14.5.3zM35.9 12.5c-.2-6.2 7-6.2 7-8.2 0-.6-.4-1.2-1.8-1.2-1.2 0-2.5.6-3.6 1.4L35.7 2c1.6-1.2 3.7-2 5.9-2 3.3 0 5.1 2 5.1 4 0 4.7-7 4.3-7 7.1H46V14H36l-.1-1.5zM55.7.3h6c4.2 0 5.7 2.2 5.7 4.5S66 9.4 61.8 9.4h-2.2V14h-3.8V.3zm5.9 6.2c1.2 0 1.9-.6 1.9-1.6 0-1.1-.7-1.6-1.9-1.6h-2.2v3.3l2.2-.1zM70 .3h3.8v10.5H80V14H70V.3zM87.3.3h4.2L96.3 14h-4.1l-.6-2h-4.4l-.6 2h-4.1L87.3.3zm.7 8.8h2.8l-1.4-4.5L88 9.1zM100.1 8.5L95 .3h4.3l2.7 4.5 2.7-4.5h4.3l-5.1 8.3V14H100V8.5z"></path></svg></a></li></ul></nav></div><nav class="tc_header__local" aria-label="Sektionsmenu"><div class="tc_header__local__inner"><div class="tc_heading tc_heading--3 tc_heading--slant tc_heading--uppercase tc_heading--slash-true"><a href="https://nyheder.tv2.dk/" class="tc_header__local__link" aria-label="Nyheder">Nyheder</a></div><ul class="tc_header__list__local"><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/seneste" class="tc_header__list__local__link">Seneste</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/coronavirus" class="tc_header__list__local__link tc_header__list__local__link--active">Coronavirus</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/politik" class="tc_header__list__local__link">Politik</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/krimi" class="tc_header__list__local__link">Krimi</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/samfund" class="tc_header__list__local__link">Samfund</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/udland" class="tc_header__list__local__link">Udland</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/business" class="tc_header__list__local__link">Business</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/penge" class="tc_header__list__local__link">Penge</a></li><li class="tc_header__list__local__item"><a href="https://nyheder.tv2.dk/tech" class="tc_header__list__local__link">Tech</a></li></ul></div></nav></div><div class="tc_header__overlay" id="navigation-overlay"></div></header><div data-ad="topbanner-1" class="tc_ad tc_ad--topbanner" data-sizes-medium="1x1,930x180,fluid" data-sizes="1x1,320x160,fluid" data-exclude-decider="1" aria-hidden="true"></div><div class="tc_ad tc_ad--dd"></div><div data-ad="interscroll-1" data-ad-ignore="true" class="tc_ad tc_ad--interscroll" aria-hidden="true"></div><div data-ad="skyscraperleft-1" class="tc_ad tc_ad--skyscraperleft tc_ad--sticky" data-sizes-skyscrapers="160x600,160x601,fluid" data-sizes="none" data-exclude-on="dd,interscroll" aria-hidden="true"></div><div data-ad="skyscraperright-1" class="tc_ad tc_ad--skyscraperright tc_ad--sticky" data-sizes-skyscrapers="160x600,160x602,fluid" data-sizes="none" data-exclude-on="dd,interscroll" aria-hidden="true"></div><main id="main"><article class="tc_deck tc_article__wrapper" aria-label="Artikel"><div class="tc_deck tc_deck--gapless tc_deck--colxl"><div class="tc_grid tc_grid--gutter"><header class="tc_page__header"><a href="https://nyheder.tv2.dk/coronavirus" class="tc_label tc_label--color-base-red" aria-label="Sektion">Coronavirus</a><h1 class="tc_heading tc_heading--1 tc_heading--weight-700">Nyeste coronatal fra Danmark og verden: Så mange er smittede, døde og indlagte</h1><div class="tc_page__header__meta"><div class="tc_page__header__timestamp"><time class="tc_timestamp" dateTime="2020-10-11T12:09:15.000Z" aria-label="Publiceringstidspunkt"> <!-- -->11. okt. 2020, 14:09</time><time class="tc_timestamp tc_timestamp--updated" dateTime="2021-01-13T18:34:48.000Z"><abbr title="Opdateret" aria-label="Opdateret">Opd.</abbr> <!-- -->13. jan. 2021, 19:34</time></div><div class="tc_page__header__social"><div class="tc_socialbuttons tc_socialbuttons--line"><ul class="tc_socialbuttons__list" aria-label="Deling på sociale medier"><li class="tc_socialbuttons__item"><a href="https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fnyheder.tv2.dk%2Fsamfund%2F2020-10-11-nyeste-coronatal-fra-danmark-og-verden-saa-mange-er-smittede-doede-og-indlagte&amp;t=Nyeste%20coronatal%20fra%20Danmark%20og%20verden%3A%20S%C3%A5%20mange%20er%20smittede%2C%20d%C3%B8de%20og%20indlagte" class="tc_socialbuttons__action"><svg xmlns="http://www.w3.org/2000/svg" width="9.3" height="20" viewBox="0 0 9.3 20"><path d="M9.3 6.5H6.1V4.4c0-.8.5-1 .9-1h2.2V0h-3C2.8 0 2 2.6 2 4.2v2.3H0V10h2v10h4.2V10H9l.3-3.5"></path></svg><span class="tc_socialbuttons__action__text">Del på Facebook</span></a></li><li class="tc_socialbuttons__item"><a href="https://twitter.com/intent/tweet?url=https%3A%2F%2Fnyheder.tv2.dk%2Fsamfund%2F2020-10-11-nyeste-coronatal-fra-danmark-og-verden-saa-mange-er-smittede-doede-og-indlagte&amp;text=Nyeste%20coronatal%20fra%20Danmark%20og%20verden%3A%20S%C3%A5%20mange%20er%20smittede%2C%20d%C3%B8de%20og%20indlagte" class="tc_socialbuttons__action"><svg xmlns="http://www.w3.org/2000/svg" width="22" height="17.8" viewBox="0 0 22 17.8"><path d="M1.5.8S5 5.4 10.8 5.5c0 0-1.1-4.1 3.4-5.4 2.3-.7 4.2 1.3 4.2 1.3s1.2-.1 3-1.1c-.2 1.1-2 2.5-2 2.5s1.9-.2 2.6-.7c-.5.8-2.1 2.3-2.2 2.4-.1.1.3 4.8-3 8.8-3.1 4-10.8 6.5-16.8 2.5 3.5.5 6.7-1.8 6.6-1.8-.2 0-2.9 0-4.2-3.2.1 0 1.4.2 2-.1.5-.1-3.1 0-3.5-4.4 1.3.6 2 .5 2 .5s-3.4-2-1.4-6"></path></svg><span class="tc_socialbuttons__action__text">Del på Twitter</span></a></li><li class="tc_socialbuttons__item"><a href="mailto:?subject=Nyeste%20coronatal%20fra%20Danmark%20og%20verden%3A%20S%C3%A5%20mange%20er%20smittede%2C%20d%C3%B8de%20og%20indlagte&amp;body=https%3A%2F%2Fnyheder.tv2.dk%2Fsamfund%2F2020-10-11-nyeste-coronatal-fra-danmark-og-verden-saa-mange-er-smittede-doede-og-indlagte" class="tc_socialbuttons__action" rel="noopener noreferrer"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="12" viewBox="0 0 20 12"><path d="M18.5 0h-17L10 8.5"></path><path d="M10.6 10c-.1.1-.1.1 0 0-.2.2-.4.3-.6.3-.2 0-.4-.1-.5-.2L.1.7C0 .9 0 1 0 1.2v9.6c0 .7.5 1.2 1.1 1.2h17.8c.6 0 1.1-.5 1.1-1.2V1.2c0-.2 0-.3-.1-.5L10.6 10z"></path></svg><span class="tc_socialbuttons__action__text">Del på e-mail</span></a></li></ul></div></div></div></header></div></div><div class="tc_deck tc_deck--gapless tc_deck--colxl"><div class="tc_grid tc_grid--gutter" data-grid-lg="row_2-1"><div class="tc_grid"><div class="tc_byline"><span class="tc_byline__prefix">af </span><a href="https://shared.tv2.dk/profil/yan-kovyakh" class="tc_byline__author" aria-label="Forfatter"><span class="tc_byline__author__info"><strong class="tc_byline__author__name">Yan Kovyakh</strong></span>, </a><a href="https://nyheder.tv2.dk/profil/lasse-kalhauge" class="tc_byline__author" aria-label="Forfatter"><span class="tc_byline__author__info"><strong class="tc_byline__author__name">Lasse Kalhauge</strong></span>, </a><a href="https://nyheder.tv2.dk/profil/said-nuh" class="tc_byline__author" aria-label="Forfatter"><span class="tc_byline__author__info"><strong class="tc_byline__author__name">Said Nuh</strong></span>, </a><a href="https://nyheder.tv2.dk/profil/nikolaj-albrectsen" class="tc_byline__author" aria-label="Forfatter"><span class="tc_byline__author__info"><strong class="tc_byline__author__name">Nikolaj Albrectsen</strong></span> &amp; </a><a href="https://nyheder.tv2.dk/profil/magnus-bjerg" class="tc_byline__author" aria-label="Forfatter"><span class="tc_byline__author__info"><strong class="tc_byline__author__name">Magnus Bjerg</strong></span></a><span class="tc_byline__author__text"><span> &amp; Esben Christensen</span></span></div><div class="tc_page__body" data-adobe-context="article-body"><p class="tc_page__body__standfirst"><strong>Få her overblikket over, hvor mange der er indlagt og smittet efter udbruddet af covid-19, og hvordan smitten har spredt sig.</strong></p><div style="display:none"><!-- "Debug info:\n StructuredContent can not render the blocks, because they contain unsupported types: " --></div><div class="tc_richcontent"><ul>" & @CRLF & _ " <li>Smittede: 185.159 (+1358 siden i g&#xE5;r)</li>" & @CRLF & _ " <li>D&#xF8;de: 1660 (+37 siden i g&#xE5;r)</li>" & @CRLF & _ " <li>Indlagt: 859 (-58 siden i g&#xE5;r)</li>" & @CRLF & _ " <li>P&#xE5; intensiv: 137 (+2 siden i g&#xE5;r)</li>" & @CRLF & _ " <li>I respirator: 90 (u&#xE6;ndret)</li>" & @CRLF & _ " <li>Antal pr&#xF8;ver: 11556903 (+82.795 siden i g&#xE5;r)</li>" & @CRLF & _ " <li>Raskmeldte: 161.194 (+2451 siden i g&#xE5;r)</li>" & @CRLF & _ "</ul>" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm