#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "JSESSIONID=([^;]*)"
Local $sString = "Set-Cookie:Apache=40.76.87.14.1462996905538733; path=/; domain=.cra-arc.gc.ca,JSESSIONID=KjahaS5VdMBttn9bAYuS_iHFXOgmqQyMxHcht1kBS7p1YOpdV2V_!1094217526; path=/; HttpOnly"
Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYFULLMATCH)
; Present the entire match result
_ArrayDisplay($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