Why Rewriting Emacs Is Hard

23 signa11 1 9/4/2025, 1:32:05 AM kyo.iroiro.party ↗

Comments (1)

WantonQuantum · 1h ago
That's quite a read! Looks like emacs has done an amazing job of handling text correctly in the face of quite a few challenges. Including cases where there perhaps is no "correct" choice.

Now, I'm certainly not in the "all C code must be rewritten in Rust because security" camp but it does raise the question: With all this complexity how do I know that pasting text from a web page into emacs (or any editor really) isn't going to trigger an undiscovered vulnerability?

Edit: I guess that's rhetorical question because of course the answer is "you don't".