How to retain text cursor (caret) to its original position even after "setContents".

[Prithviraj-kf]

I have a situation where I need to do some regex and update the content on onTextChange.
but when i update content using "setContents" the cursor(caret) moves to the initial(first letter).

I want the caret to stay in the same position. Please help

[JiHong88]

You can use the core.setRange