uemacs VS chibicc

Neat, I am a fan of minimalist text editors. There is also uEmacs: https://github.com/torvalds/uemacs

maybe you're talking about the uEmacs Linus Torvalds still uses today? it's still maintained by him to fit his needs: https://github.com/torvalds/uemacs

u/DellOptiplexFan Ironic, since the literal creator of Linux uses a fork of microemacs https://github.com/torvalds/uemacs

Torvalds's Emacs is nice. https://github.com/torvalds/uemacs

Looks like he uses a thing called uEmacs.

Why don't you ask Linus? Or even better, read his motivation in his fork of microemacs (not GNU Emacs).

He doesn't. Linus uses MicroEMACS [0], which is an entirely different editor that uses emacs bindings.

It's not the lisp machine that incidentally happens to edit code that GNU Emacs is.

Or, as he puts it [1]:

> I use this abomination called "micro-emacs", which has absolutely nothing to do with GNU emacs except that some of the key bindings are similar.

[0]: https://github.com/torvalds/uemacs

Then on the other hand he has his own fork of µEmacs: https://github.com/torvalds/uemacs

Consider taking a look at chibicc and simply working forward through the commits:

https://github.com/rui314/chibicc

> Each commit of this project corresponds to a section of the book. For this purpose, not only the final state of the project but each commit was carefully written with readability in mind. Readers should be able to learn how a C language feature can be implemented just by reading one or a few commits of this project.

If a --k&r mode was to be reliable, wouldn't it need to get specified first? Otherwise people would start relying on some edge case.

If speed is not a requirement for the --k&r mode, you could just take the tis-interpreter and note that if it runs without UB, it is still much faster than an actual computer was when k&r were active.

Would it even be possible to specify a variant of C that contains no UB (e.g. would define exactly what happens on unaligned access), but can compile practical existing C89 programs? I wonder if it could be written such that it could actually specify the behaviour consistently across the language intersection supported by both of e.g. GCC 2.95 and Chibicc[0].

Or maybe there are so many bugs in GCC 2.95 that it would simply be infeasible? How much time would it take to specify?

[0]: https://github.com/rui314/chibicc

I was on the Eclipse Foundation call a few days ago regarding this topic and they said there was a well-established 3-part test for this in the EU courts. But I don't think I managed to take a screenshot, sorry.

Here is a snippet from the EU Blue Guide linked the from the Eclipse blog post:

"Commercial activity is understood as providing goods in a business related context. Non-profit organisations may be considered as carrying out commercial activities if they operate in such a context. This can only be appreciated on a case by case basis taking into account the regularity of the supplies, the characteristics of the product, the intentions of the supplier, etc. In principle, occasional supplies by charities or hobbyists should not be considered as taking place in a business related context."

I would consider GCC or React to fit this definition, while a hobby project like https://github.com/rui314/chibicc not to fit it.

chibicc

chibicc: https://github.com/rui314/chibicc (A reasonably digestible C implementation)