Prettify-symbols-mode is a very nice way to make source code more readable, especially in math-heavy languages. Unfortunately, exporting to HTML with html-fontify-buffer doesn't respect prettifications.
It can be made to (I wrote the code for that), but it breaks copy-pasting (the prettified symbols are copied, not their unprettified equivalents).
In other words, how can I export an Emacs lisp buffer to a webpage, while preserving prettifications and not breaking copy-paste?