#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)^((['"])|\()(.*)(?(?=\2)(\2)|(\)))$"
Local $sString = "(hello)" & @CRLF & _
"'hello'" & @CRLF & _
""hello"" & @CRLF & _
"(hello (world))" & @CRLF & _
""hello 'world'"" & @CRLF & _
"(hello "world")" & @CRLF & _
""hello (world)"" & @CRLF & _
"""" & @CRLF & _
"''" & @CRLF & _
"()" & @CRLF & _
"'"hello world'" & @CRLF & _
""'hello world"" & @CRLF & _
"((" & @CRLF & _
"))" & @CRLF & _
"'"" & @CRLF & _
"'"" & @CRLF & _
"(hello(" & @CRLF & _
")hello)" & @CRLF & _
""hello'" & @CRLF & _
""hello world'" & @CRLF & _
"'hello world"" & @CRLF & _
"'"hello world'"" & @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