#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "".*\s(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\s\d+?\s\d+?\s"
Local $sString = "# Bluecoat UPSTREAM Logs" & @CRLF & _
"" & @CRLF & _
"2016-08-31 00:02:54 18 172.25.21.173 - - - OBSERVED "Non-Viewable/Infrastructure" - 200 TCP_HIT GET application/ocsp-response http sr.symcd.com 80 /MFYwVKADAgEAME0wSzBJMAkGBSsOAwIaBQAEFHQkFGcGn%2FXgmD9ePhproGUqVBV1BBQBWavn3ToLWaZkY9bPIAdX1ZHnagIQUufCRVii4D52%2B1NnK%2BL%2Fmg%3D%3D - - "ocspd/1.0.3" 10.222.157.10 1957 316 -" & @CRLF & _
"" & @CRLF & _
"2016-08-31 00:02:54 18 172.25.19.32 - - policy_denied DENIED "Chat (IM)/SMS;Content Servers" http://im.qq.com/mobileqq 403 TCP_DENIED GET - http 203.205.144.22 80 /gchatpic_new/99787480/2125162524-3194779440-DD292643C193D85264F13026ED37A996/198 ?vuin=15929133&term=3&pictype=1003&cldver=6.5.0.443&rf=aio&msgTime=1472601651 - "QQ/6.5.0.443 CFNetwork/758.3.15 Darwin/15.4.0" 10.222.157.10 1185 421 -" & @CRLF & _
"" & @CRLF & _
"2016-08-31 00:02:54 199 172.25.26.70 - - - OBSERVED "Technology/Internet" - 200 TCP_NC_MISS POST application/json;charset=utf-8 http d.applovin.com 80 /device ?device_token=MaznYs97JTiqaqEwnZGZ5u0SoeBtsuRonBn0BJmm3q8hGZZkZ8TWjSHReUJMpRCoo6knaop8PaTY2Hg-vnNcBg34k9zTsGFYDOM6zvxdBDIykMF76uM-xuc_Km4oV6e5uf6-S_X6wDyE1kpriXzu5FBhmSNn4-E-PXKNuJvyqQM= - "Dalvik/1.6.0 (Linux; U; Android 4.4.2; HTC One_E8 Build/KOT49H)" 10.222.157.10 791 1227 -"
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