#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "(?s)<li.*?>\s*(.*?)\s*</li>"
Local $sString = "<li id="menu-item-98" class="navigation-heading menu-item menu-item-type-custom menu-item-object-custom menu-item-98">" & @CRLF & _
" <a href="#">Main</a>" & @CRLF & _
"</li>"
Local $sSubst = "<div class="navigation-heading">\n<span>\n <span>\1</span>\n</span>\n</div>"
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