lifthrasiir

/* The world's smallest Brainfuck interpreter in C, by Kang Seonghoon
 * http://j.mearie.org/post/1181041789/brainfuck-interpreter-in-2-lines-of-c */
s[99],*r=s,*d,c;main(a,b){char*v=1[d=b];for(;c=*v++%93;)for(b=c&2,b=c%7?a&&(c&17
?c&1?(*r+=b-1):(r+=b-1):syscall(4-!b,b,r,1),0):v;b&&c|a**r;v=d)main(!c,&a);d=v;}

lifthrasiir

*.exe
wah_test_basic
wah_test_control_flow
wah_test_determinism
wah_test_export
wah_test_functions
wah_test_globals
wah_test_memory
wah_test_ops
wah_test_overflow

lifthrasiir

#![cfg_attr(
    not(all(feature = "encode", feature = "decode")),
    allow(dead_code, unused_imports)
)]

// TODO:
// - Better error checking
// - Better code structure
// - Detect function boundary (skip CC or multi-byte nops)

lifthrasiir

package main

import (
	"bufio"
	"bytes"
	"context"
	"fmt"
	"io/ioutil"
	"log"
	"os"

lifthrasiir

// Brotli bootstrapping based on WOFF2 font
// Kang Seonghoon, 2024-03-01, public domain
// Based on my earlier work for JS1024: https://js1024.fun/demos/2022/18
// Only vaguely tested, YMMV

import { argv, stderr } from 'node:process';
import fs from 'node:fs';
import zlib from 'node:zlib';

const generateBrotliParams = function* ()  {

lifthrasiir

What the heck?

• Schemaless: The format does not have a knowledge about the underlying data at all.
• Byte-oriented: The format is built upon a byte stream, probably for the ease of implementation and performance.
• Binary: The format is not targeted for human consumption and specified in terms of "bytes" (which is 8 bits long for our purpose).
• Serialization: The format is primarily to be used for storage and transmission, not for the in-memory representation.

Contenders

• S-Expressions (1997), a "canonical" encoding (which is also used for transport)

lifthrasiir

?? = not yet known, set to zero?; nnnn = u16be; nnnn^ = u16le; ...
XXXX (uppercased) = output locations, otherwise input locations or literal bytes

cmd#    buffer configuration        function signature

0x01    ?? VVVV                     getProtocolVersion() -> v
0x02    tt aa... VV...              getKeyboardValue(t, a, n) -> v...
0x03    tt aa...                    setKeyboardValue(t, a...)
0x04    tt aa nn KKKK               getKey(t, a, n) -> k
0x05    tt aa nn ssss/KKKK          setKey(t, a, n, s) -> k

lifthrasiir

This proposal was originally written in 2018 as a concrete proposal for numeric time zone identifiers. I'm still not sure if this has a merit or not, but for the historical perspective, I reproduce the (incomplete) proposal in verbatim here. --Kang Seonghoon

---

[...]

The needs for the short and stable identifier are most importantly observed by the case of the Unicode CLDR project. CLDR required a stable identifier for the locales, which requires a stable identifier for the time zones. [...]

Short Identifiers

lifthrasiir

<base target=_blank><style>*{box-sizing:border-box;padding:0;margin:0}:root{color:#a1a1aa;background:#09090b;font:1.2rem Crimson Text,serif}::selection{color:#fafafa;background:#3f3f46}strong,output{font-weight:normal;color:#fafafa}output{font-family:Courier New,monospace}body{width:90%;max-width:550px;margin:120px auto}p,svg{margin-bottom:12px}p:has(~hr){font-size:1.2rem}hr{width:50px;height:1px;background:#27272a;border:0;margin:50px 0}hr~*{line-height:1.7}hr~p{text-indent:24px;margin-bottom:24px}a{color:#fafafa;text-decoration:underline dotted #71717a}aside{position:fixed;bottom:20px;left:0;width:100%;pointer-events:none}#A{width:-moz-max-content;width:max-content;max-width:90%;padding:12px 16px;margin:0 auto;font:0.74rem Inter,Arial,sans-serif;line-height:1.6;color:#a1a1aa;background-color:#18181b;border:1px solid #27272a;opacity:var(--o,0);transform:translateY(calc(20px*(1 - var(--o))))}/* fonttools subset CrimsonText-Regular.ttf --unicodes="U+0020,U+0027,U+002C-002E,U+0030-0039,U+0041-005A,U+0061-007A,U

lifthrasiir

The "Options" Alphabet

https://www.youtube.com/watch?v=knXGYSdtr_k

Transcripts

p1: "The information search for <two unrecognizable words>"

dDv- Nv-
Xo S Go D-