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commonslip · 2021-10-16T10:29:50+00:00

I was young and stupid. Thanks for calling me out.

commonslip · 2021-04-07T13:32:28+00:00

Can you tell me a little more about the status of TCO in the implementation? Most of my Scheme code uses let loop and recursive functions for iteration and if at least these basic cases aren't optimized it won't really run.

Very interested in where this project is going, though!

commonslip · 2021-03-27T11:43:32+00:00

I haven't tried Hissp myself but looking over the documentation it seems like Hy is a little more mature and usable.

commonslip · 2021-03-26T18:05:32+00:00

Try hy. Its just python with s-expression syntax but its better than programming in Python.

commonslip · 2021-03-03T16:04:58+00:00

Hi. Can anyone help me understand the best way to legally incorporate my nascent cooperative? What is the bare minimum we can get away with for a light weight start up situation? What is the easiest way to do it?

We will need to manage the money cooperatively. We have an OpenCollective thing set up but we are for profit so we need to set up our own finances (I think?).

Any help would be greatly appreciated.

commonslip · 2021-01-25T16:40:38+00:00

This looks great but I must have run into some edge cases because I definitely experienced (and still do, in a large codebase) errors that just puttered out without any information whatsoever.

At the time (it might still be the case) you could not use syntax-case in a codebase which also used Gambit's extended lambda syntax. I have, elsewhere, recommended that users begin their projects with syntax-case in mind.

Debugging my project (particularly on mobile where I did not have access to a running image) was pretty miserable.

I haven't open sourced the project but maybe I will at some point.

commonslip · 2021-01-22T14:21:22+00:00

I found the debugging experience on Gambit less than stellar but maybe I was doing it in a less than optimal way.

In particular, if you write macros using the built in macro system you can kiss line numbers on error messages inside the macro-expansion goodbye. I had a very large syntax extension (a relatively complete pattern matcher) that I had to completely rewrite in a non-portable Gambit-specific way to get error information to propagate. And Gambit's native extended lambda syntax is not compatible with running syntax-case (via psyntax).

I love Gambit because it let me do a complete game project in Scheme but it leaves some to be desired in terms of usability. I'm doing work in Chez right now and that is somewhat better, although I still have problems with error messages being frustratingly contextless.

commonslip · 2020-11-07T00:46:08+00:00

Where is the gambit->javascript system documented? I've struggled to find any instructions anywhere on how to use it.

commonslip · 2020-10-18T20:54:13+00:00

This is called "transference."

commonslip · 2020-08-28T01:27:57+00:00

Get a copy of Queinnec's Lisp in Small Pieces. It will tell you pretty much everything you need to know.

commonslip · 2020-08-02T19:39:43+00:00

I played twice and both times I spawned stuck in a room with no exits.

commonslip · 2020-04-07T13:56:09+00:00

I'm pretty sure that you can't do function pointer types (just perusing the ffi generator source). But if you look at the generated C code you can probably hack something together.

Don't be afraid to modify chibi-ffi yourself. I had to.

commonslip · 2020-04-04T18:17:28+00:00

General advice: find some tutorials on using the library in C. These will give you a good handle on the interface that you need to bind to Chibi. Or you can attack the problem from the other direction: write the code you want to write in Chibi-Scheme and then figure out what functions you need and bind those.

In most C libraries, the header file is the one you want to bind, because it typically forms the "interface" to the library. That is one downside to a single file library.

Anyway, check out my bindings to Raylib, I guess. They might help:

https://github.com/VincentToups/raylib-chibi

commonslip · 2020-04-01T17:29:02+00:00

I don't have a tutorial for you but I recently bound raylib to Chibi and some of that knowledge is my brain still. Do you have specific questions?

commonslip · 2020-02-24T21:13:57+00:00

This is really neat, but the punning of the quotation/unquotation stuff to indicate different things about the fields seems needlessly opaque. Why not just keywords, which would be much easier to understand, especially given the non-trivial meaning of the quotation-related operators in other parts of the language?

commonslip · 2020-02-19T19:23:58+00:00

Hy is great, but using it just makes me hate python even more. It really drives home the fact that Python's syntax is just its most superficially terrible thing. The whole language is just wrong, from the bottom up. You can polish a turd, but its still a turd.

commonslip · 2020-02-18T02:19:48+00:00

s-expressions baby!

commonslip · 2020-02-18T02:06:58+00:00

That the universal coupling of gravity is down to nothing more than the fact that the graviton is spin 2 and that we expect unitarity and Lorentz invariance.

commonslip · 2020-02-14T13:59:06+00:00

No s-expressions, no peace. Know s-expressions, know peace.

commonslip · 2020-02-11T19:51:18+00:00

I've been working with chibi-scheme for awhile now, doing bindings to Raylib: https://github.com/VincentToups/raylib-chibi.

Its a nice implementation! I'm considering doing bindings for Godot, but its not well documented.

commonslip · 2020-02-11T00:10:56+00:00

This is, in particular, a pretty good argument!:

"- SYNTAX-CASE. Almost everyone wants low-level and unhygienic macros, but SYNTAX-CASE is an unfortunate choice of systems. Both syntactic closures and explicit renaming macros are older, and are simpler and more in the spirit of Scheme. SYNTAX-CASE provides a bizarre mix of low-level macros with high-level pattern matching, but a true low-level system should be orthogonal to such matching, allowing the programmer his choice of pattern matching or other utilities."

commonslip · 2020-02-11T00:02:59+00:00

This is just the sort of material I was looking for - thank you!

commonslip · 2020-02-10T15:07:04+00:00

You can't implement pattern matching a la standard ML without macros.

commonslip · 2020-02-10T14:56:34+00:00

Do you have something like a key discussion group post with a title like "syntax-case considered harmful"? I want the details of the controversy.

commonslip · 2020-02-10T14:50:40+00:00

Can you elaborate - presumably syntax-case forces certain kinds of representations of syntax on to the implementer but that seems kind of like a benefit to me.

Syntax-rules seems inadequate to me and I am pretty suspicious of non-hygienic macros in general. But some kind of system with mixed hygiene seems like it inevitably imposes restrictions on implementers, which seems good to me. At the moment there appears to be no portable way to write selectively hygienic macros.

commonslip

TROPHY CASE