#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)^(?!.*\*[*#]|\d*#$)[*\d]*#?$"
Local $sString = "123" & @CRLF & _
"*123" & @CRLF & _
"*123*" & @CRLF & _
"*123#" & @CRLF & _
"*123*4" & @CRLF & _
"*123*4#" & @CRLF & _
"" & @CRLF & _
"" & @CRLF & _
"" & @CRLF & _
"1" & @CRLF & _
"*1" & @CRLF & _
"*1*" & @CRLF & _
"*1#" & @CRLF & _
"*1*1" & @CRLF & _
"*1*1#" & @CRLF & _
"*1" & @CRLF & _
"" & @CRLF & _
"" & @CRLF & _
"" & @CRLF & _
"1**" & @CRLF & _
"*1*#" & @CRLF & _
"1#" & @CRLF & _
"**" & @CRLF & _
"**3" & @CRLF & _
"#" & @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