#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "\(([1-9][\d\-\s,]*[0-9])\)"
Local $sString = "Headaches, intracranial hypertension, papilledema and exophthalmos may occur with intracranial infiltration.(7-15, 8)" & @CRLF & _
"" & @CRLF & _
"(234---345)"
Local $sSubst = "<span class="ref">$1</span>"
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