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

/
/
gm

Test String

Code Generator

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)zweckfreibaum" Local $sString = "//************* Russel **************" & @CRLF & _ "" & @CRLF & _ "//++++++++++++ App.jsx ++++++++++++++" & @CRLF & _ "" & @CRLF & _ "import React from "react";" & @CRLF & _ "import { DragonList } from "./DragonList";" & @CRLF & _ "import dragons from './dragons';" & @CRLF & _ "" & @CRLF & _ "export default function App() {7" & @CRLF & _ "" & @CRLF & _ " const [minAge, setMinAge] = React.useState(17);" & @CRLF & _ " const [type, setType] = React.useState('All');" & @CRLF & _ " console.log(dragons);" & @CRLF & _ " return (" & @CRLF & _ " <div>" & @CRLF & _ " <h1>The Dragons:</h1>" & @CRLF & _ " <DragonList dragons={dragons} minAge={minAge} type={type}/>" & @CRLF & _ " <span>Minimum Age: {minAge}</span>" & @CRLF & _ " <button type="button" onClick={ () => setMinAge(age => age - 1) }>" & @CRLF & _ " Show younger dragons" & @CRLF & _ " </button>" & @CRLF & _ " <button type="button" onClick={ () => setMinAge(age => age + 1) }>" & @CRLF & _ " Show older dragons" & @CRLF & _ " </button>" & @CRLF & _ " <button type="button" onClick={ () => setType('All') }>" & @CRLF & _ " Show all dragons" & @CRLF & _ " </button>" & @CRLF & _ " <button type="button" onClick={ () => setType('Fire') }>" & @CRLF & _ " Show fire dragons" & @CRLF & _ " </button>" & @CRLF & _ " </div>" & @CRLF & _ " )" & @CRLF & _ "}" & @CRLF & _ "" & @CRLF & _ "//++++++++++++++ Main.jsx ++++++++++++++++++" & @CRLF & _ "" & @CRLF & _ "import { StrictMode } from 'react'" & @CRLF & _ "import { createRoot } from 'react-dom/client'" & @CRLF & _ "import './index.css'" & @CRLF & _ "import GiggnGoggn from './App.jsx'" & @CRLF & _ "" & @CRLF & _ "createRoot(document.getElementById('root')).render(" & @CRLF & _ " <StrictMode>" & @CRLF & _ " <GiggnGoggn />" & @CRLF & _ " </StrictMode>," & @CRLF & _ ")" & @CRLF & _ "" & @CRLF & _ "//++++++++++++++ dragon.js++++++++++++++" & @CRLF & _ "" & @CRLF & _ "export default dragons = [" & @CRLF & _ " {" & @CRLF & _ " name: "Skril"," & @CRLF & _ " type: "Lightning"," & @CRLF & _ " age: 16," & @CRLF & _ " }," & @CRLF & _ "" & @CRLF & _ " {" & @CRLF & _ " name: "Nightmare"," & @CRLF & _ " type: "Fire"," & @CRLF & _ " age: 22," & @CRLF & _ " }," & @CRLF & _ "" & @CRLF & _ " {" & @CRLF & _ " name: "Deadly Nadder"," & @CRLF & _ " type: "Magnesium"," & @CRLF & _ " age: 16," & @CRLF & _ " }," & @CRLF & _ "" & @CRLF & _ " {" & @CRLF & _ " name:"Night Fury"," & @CRLF & _ " type: "Plasma"," & @CRLF & _ " age: 18," & @CRLF & _ " }," & @CRLF & _ "" & @CRLF & _ "]; " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "//++++++++++++++++++++++ DragonList.jsx+++++++++++++++++++" & @CRLF & _ "" & @CRLF & _ "import { Dragon } from "./Dragon";" & @CRLF & _ "" & @CRLF & _ "export function DragonList({dragons, minAge, type}) {" & @CRLF & _ "" & @CRLF & _ " const filteredDragons = dragons.filter(" & @CRLF & _ " dragon => (dragon.age >= minAge) && (type === 'All' ? true : dragon.type === type)" & @CRLF & _ " );" & @CRLF & _ "" & @CRLF & _ " console.log('filteredDragons', {filteredDragons});" & @CRLF & _ "" & @CRLF & _ " return (" & @CRLF & _ " <div>" & @CRLF & _ " {filteredDragons.map((dragon, index) => <Dragon key={index} {...dragon} /> )}" & @CRLF & _ " </div>" & @CRLF & _ " );" & @CRLF & _ "}" & @CRLF & _ "" & @CRLF & _ "//++++++++++++++++++ dragon.jsx +++++++++++++++++++++++++" & @CRLF & _ "" & @CRLF & _ "export function Dragon({ name, type, age }) {" & @CRLF & _ " return (" & @CRLF & _ " <div>" & @CRLF & _ " <h2>{name}</h2>" & @CRLF & _ " <p>Type: {type}</p>" & @CRLF & _ " <p>Age: {age} years</p>" & @CRLF & _ " </div>" & @CRLF & _ " );" & @CRLF & _ "}" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "" & @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