Your comments

Maybe  Replace in Files could pop up a warning of the danger and advise testing on one file first.

Any chance that an option to replace across files might be added? That is what I needed for making changes across a range of documents.

That's great, thank you!

Regex search and replace across files would be epic. No app in the iOS App Store or the Google Play store has this and many desktop text editors skip this very powerful feature.

With regex search and replace you can change formatting, function names, variable names, strip white space, etc from multiple files at once. This is literally the number one use case for computers - eliminating repetitive tasks.

I just ran a search replace manually on 114 files.... ugggh. And sometimes there are more. Please help us Obi wan, you are our only hope!