I didn't know about using elisp in the replacement! Can't wait to need to use it. You can also do this replacement across an entire project and emacs also uses

I didn't know about using elisp in the replacement! Can't wait to need to use it. You can also do this replacement across an entire project and emacs also uses "smart" caps by default so that case is preserved from match to replacement. I wrote about it here: https://blog.gpkb.org/posts/emacs-regexp-replace/ https://blog.gpkb.org/posts/emacs-regexp-replace/