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

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?mi)(\([\w\s].*[\w\s]\)|\(\)) =>" Local $sString = "var MODULE = ((my, $, undefined) => {" & @CRLF & _ "" & @CRLF & _ " console.log('EXECUTION FROM LEGACY APP START ===>');" & @CRLF & _ "" & @CRLF & _ " // if private var defined in my module, use that" & @CRLF & _ " // else create a private var" & @CRLF & _ " var _private = my._private = my._private || {}," & @CRLF & _ " _seal = my._seal = function seal(seal) {" & @CRLF & _ " if (!seal) {" & @CRLF & _ " return;" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " delete my._private;" & @CRLF & _ " delete my._seal;" & @CRLF & _ " console.log('SEALED');" & @CRLF & _ " }," & @CRLF & _ " _unseal = my._unseal = function unseal(unseal) {" & @CRLF & _ " if (!unseal) {" & @CRLF & _ " return;" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " my._seal = _seal;" & @CRLF & _ " my._private = _private;" & @CRLF & _ " console.log('UNSEALED');" & @CRLF & _ " };" & @CRLF & _ "" & @CRLF & _ " var name = 'Tonny Frank';" & @CRLF & _ " _private.name = 'This is a private name: ' + name;" & @CRLF & _ "" & @CRLF & _ " _private.reverse = function reverse(str) {" & @CRLF & _ " return str.split('').reverse().join('');" & @CRLF & _ " };" & @CRLF & _ "" & @CRLF & _ " if ($ === undefined) {" & @CRLF & _ " console.log('jQuery not defined');" & @CRLF & _ " return;" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " $(() => {" & @CRLF & _ " var $h1 = $('.card').children('h1');" & @CRLF & _ " $h1.html(_private.reverse($h1.html()));" & @CRLF & _ " });" & @CRLF & _ "" & @CRLF & _ " console.log(my);" & @CRLF & _ " my.myMethod = () => {" & @CRLF & _ " console.log('MODULE myMethod Executed');" & @CRLF & _ " $('.name').html('Abhisek ...');" & @CRLF & _ " $('button').click(function (ev) {" & @CRLF & _ " ev.preventDefault();" & @CRLF & _ " console.log(this);" & @CRLF & _ " $(this).html('Damn!');" & @CRLF & _ " });" & @CRLF & _ " };" & @CRLF & _ "" & @CRLF & _ " console.log('EXECUTION FROM LEGACY APP END <===');" & @CRLF & _ "" & @CRLF & _ " return my;" & @CRLF & _ "})(MODULE || {}, this.jQuery);" & @CRLF & _ "" Local $sSubst = "function $1" 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