Regular Expressions 101

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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

/
/
mg

Test String

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)<figure[^>]*>([\t\n\r\s]*)<figcaption[^>]*>(.*)<\/figcaption>([\t\n\r\s]*)<audio[^>]*>(([\t\n\r\s]|.)*)<\/audio>([\t\n\r\s]*)<\/figure>" Local $sString = "<!-- Une simple image -->" & @CRLF & _ "<figure>" & @CRLF & _ " <img" & @CRLF & _ " src="https://developer.mozilla.org/static/img/favicon144.png"" & @CRLF & _ " alt="Le logo de MDN.">" & @CRLF & _ "</figure>" & @CRLF & _ "" & @CRLF & _ "<!-- Une image avec une légende -->" & @CRLF & _ "<figure>" & @CRLF & _ " <img" & @CRLF & _ " src="https://developer.mozilla.org/static/img/favicon144.png"" & @CRLF & _ " alt="Le logo de MDN.">" & @CRLF & _ " <figcaption>Logo MDN</figcaption>" & @CRLF & _ "</figure>" & @CRLF & _ "<figure>" & @CRLF & _ " <figcaption>Obtenir les détails du navigateur</figcaption>" & @CRLF & _ " <pre>" & @CRLF & _ " function NavigatorExample(){" & @CRLF & _ " let txt;" & @CRLF & _ " txt = "Nom de code: " + navigator.appCodeName;" & @CRLF & _ " txt += "Nom du navigateur : " + navigator.appName;" & @CRLF & _ " txt += "Version : " + navigator.appVersion ;" & @CRLF & _ " txt += "Cookies activés : " + navigator.cookieEnabled;" & @CRLF & _ " txt += "Plate-forme: " + navigator.platform;" & @CRLF & _ " txt += "En-tête d'agent utilisateur : " + navigator.userAgent;" & @CRLF & _ " console.log("NavigatorExample", txt);" & @CRLF & _ " }" & @CRLF & _ " </pre>" & @CRLF & _ "</figure>" & @CRLF & _ "<figure>" & @CRLF & _ " <figcaption>" & @CRLF & _ " <cite>Edsger Dijkstra : </cite>" & @CRLF & _ " </figcaption>" & @CRLF & _ " <p>« Si le débogage correspond au retrait de bogues," & @CRLF & _ " alors la programmation correspond à l'ajout de bogues. »" & @CRLF & _ " </p>" & @CRLF & _ "</figure>" & @CRLF & _ "<figure style="display:table; margin:0 auto;">" & @CRLF & _ "<img loading="lazy" src="/public/illustrations/2021/.grole_u.jpg" alt="Grole abandonnée sur les rochers, août 2021" title="Grole abandonnée sur les rochers, août 2021" height="600" width="600" class="a42-ac-replace-img">" & @CRLF & _ "<figcaption>Grole abandonnée sur les rochers du petit port de Pen-Hors</figcaption>" & @CRLF & _ "</figure>" & @CRLF & _ "" & @CRLF & _ "<figure style="display:table; margin:0 auto;">" & @CRLF & _ "<a href="#">" & @CRLF & _ "<img loading="lazy" src="/public/illustrations/2021/.grole_u.jpg" alt="Grole abandonnée sur les rochers, août 2021" title="Grole abandonnée sur les rochers, août 2021" height="600" width="600" class="a42-ac-replace-img">" & @CRLF & _ "</a>" & @CRLF & _ "<figcaption>Grole abandonnée sur les rochers du petit port de Pen-Hors</figcaption>" & @CRLF & _ "</figure>" & @CRLF & _ "" & @CRLF & _ "<figure style="display:table; margin:0 auto;"><a href="#"><img loading="lazy" src="/public/illustrations/2021/.grole_u.jpg" alt="Grole abandonnée sur les rochers, août 2021" title="Grole abandonnée sur les rochers, août 2021" height="600" width="600" class="a42-ac-replace-img"></a><figcaption>Grole abandonnée sur les rochers du petit port de Pen-Hors</figcaption></figure>" & @CRLF & _ "" & @CRLF & _ "<figure>" & @CRLF & _ " <figcaption>Listen to the T-Rex:</figcaption>" & @CRLF & _ " <audio" & @CRLF & _ " controls" & @CRLF & _ " src="/media/cc0-audio/t-rex-roar.mp3">" & @CRLF & _ " Your browser does not support the" & @CRLF & _ " <code>audio</code> element." & @CRLF & _ " </audio>" & @CRLF & _ "</figure>" & @CRLF & _ "" Local $sSubst = "" Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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