#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "{.+}"
Local $sString = "Competing Titles {#competing-titles .unnumbered}" & @CRLF & _
"================" & @CRLF & _
"" & @CRLF & _
"Why Does He Do That?: Inside the Minds of Angry and Controlling Men {#why-does-he-do-that-inside-the-minds-of-angry-and-controlling-men .unnumbered}"
Local $sSubst = "\n"
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