#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?im)^(\d{4}[A-Z]{2}) ([\w\.\'\/\- ]+) (\w?[0-9]+[a-zA-Z0-9\- ]*)"
Local $sString = "# Simple " & @CRLF & _
                "" & @CRLF & _
                "5913ST PRINSENSTRAAT 6" & @CRLF & _
                "3421ED OUDE SINGEL 11-21" & @CRLF & _
                "6546EX HORSTACKER 16-44 A" & @CRLF & _
                "5473CA PLEIN 1969 13A" & @CRLF & _
                "6533VD ST. JACOBSLAAN 339" & @CRLF & _
                "7622CN 'T DIJKHUIS 36" & @CRLF & _
                "5022EH PATER V/D ELSENPLEIN 86" & @CRLF & _
                "6533VD P/A ST. JACOBSLAAN 339" & @CRLF & _
                "3262JP WEST-VOORSTRAAT 20" & @CRLF & _
                "6212BP GLACISWEG 30 K-L" & @CRLF & _
                "6216BX BECANUSSTRAAT 15A04" & @CRLF & _
                "9663PR ALBATROSSTRAAT B75" & @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