#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "(?m)([0-9]{4}.G[0-9]{2}(?: [0-9]{4}.G[0-9]{2})* |( )(?=Jednostki))"
Local $sString = "Dane osobowe po zmianie (dopisane): Surname1 Name1 (RYSZARD, EUGENIA) Zam. 99-100 Muczyn (Geod) 6A, Płeć: K, PESEL: 99945104321 Jednostki Rejestrowe osoby (w gminie): 0001.G16 0002.G56 Surname2 Name2 (ANDRZEJ, AGNIESZKA) Zam. 99-100 Muczyn (Geod) 4A, Płeć: K Jednostki Rejestrowe osoby (w gminie): 0001.G16 0001.G07 0001.G43 Surname1 Name1 Name2 (ANDRZEJ, AGNIESZKA) Zam. 99-100 MUCZYN (Geod) 4A, Płeć: M Jednostki Rejestrowe osoby (w gminie): 0001.G16"
Local $sSubst = "\0\n"
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