replace often used Tex-Literals ($ and $$) for math regions into ( or ) and [ or ]

Is there an editor or IDE (or a script) for substituting the TeX-Commands $ and $$ for opening and closing math regions into the corresponding LaTeX-Commands (,) and [,]?
I’m sure there is a tool – and I’m searching for. I think, this will result in better readable code. A simple search and replace wont do that – but with regular expressions, that should not be problem. I simply do not want to invent the wheel a second time.