#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)(0|[1-9][\d]*)\h+(?:@?((?<=@)[^@]+(?=@)|(?!@))(?:@\h+)?)(?<Special>FAM[SC]|CHIL)?(?(Special)|(?<NoSpecial>\w+))(?(Special)\h+@([^\v]*|)@|\h*([^\v]*|))"
Local $sString = "0 @Reference@ Objekt" & @CRLF & _
"1 NAME Max /Mustermann/" & @CRLF & _
"2 DATE 22 APR 2016" & @CRLF & _
"1 FAMC @I123@" & @CRLF & _
"1 FAMS @I124@" & @CRLF & _
"1 CHIL @I125@"
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