#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "((<(.|\n)+?>)?[^=])"
Local $sString = "<html style='aklfhnakfn'>This is test content " & @CRLF & _
"<head font="13"> dummy head </head>" & @CRLF & _
"<p> This is a sample?<a href="www.google.com"> a=b=c=d test release </a> </p>" & @CRLF & _
"<p> Dummy a = b = c= d </p>" & @CRLF & _
"</html>"
Local $sSubst = ""
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