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
No Match

/
/
gmi

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 $sRegex = "(?mi)^(?:https?:\/\/)?(?:www\.)?[\d\w\.-]+(?:\.|:)(?:[a-z\.]{2,6}|\d+)\/?.*$" Local $sString = "https://regex101.com/" & @CRLF & _ "https://www.variables.sh/complex-regular-expression-examples" & @CRLF & _ "https://search.brave.com/search?q=regex+challenges&source=desktop" & @CRLF & _ "https://web.whatsapp.com/" & @CRLF & _ "https://www.youtube.com/watch?v=fc_RvxTtIwc" & @CRLF & _ "https://text-auditor.netlify.app/" & @CRLF & _ "https://github.com/Dashrath-Sharma" & @CRLF & _ "http://github.com/Dashrath-Sharma" & @CRLF & _ "https://onecompiler.com/javascript/3zqzyu2g4" & @CRLF & _ "http://localhost:3000/" & @CRLF & _ "https://www.codingame.com/clashofcode/clash/report/3342454a92e4c660d772438bac8b2ef73de3c8f" & @CRLF & _ "https://react.dev/learn/thinking-in-react" & @CRLF & _ "https://dapp-world.com/course/introduction-to-solidity-Ynws/working-of-traditional-dapps-compared-to-dapps/reading" & @CRLF & _ "" & @CRLF & _ "http://www.google.com" & @CRLF & _ "https://www.google.com" & @CRLF & _ "http://google.com" & @CRLF & _ "https://google.com" & @CRLF & _ "http://www.google.com/" & @CRLF & _ "https://www.google.com/" & @CRLF & _ "http://google.com/" & @CRLF & _ "https://google.com/" & @CRLF & _ "http://www.google.com/index.html" & @CRLF & _ "https://www.google.com/index.html" & @CRLF & _ "http://google.com/index.html" & @CRLF & _ "https://google.com/index.html" & @CRLF & _ "" 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