Selenium Compiler

Selenium is a small esoteric language with a lunar / poetic surface and a strict, C-like core.

Features

• strongly typed
• semicolon-terminated statements
• functions
• variables and constants
• eclipse / shadow for if / else
• tide for while
• orbit for for
• switch / case / default for switch statements
• break and continue for loops and switch
• prefix ++ and -- operators
• ternary conditional ?:
• bitwise operators << >> & | ^
• whisper for printing
• read_int, read_float, read_bool, read_char for input
• explicit cast(type, expr) conversions

Syntax sketch

wax int moon = 3;
seal int tide = 8;

ritual add(int a, int b) -> int {
    return a + b;
};

eclipse (moon < tide) {
    whisper moon;
} shadow {
    whisper tide;
};

tide (moon < 10) {
    whisper moon;
    moon = moon + 1;
};

orbit (wax int i = 0; i < 5; i = i + 1) {
    whisper i;
};

switch (moon) {
    case 1: {
        whisper "one";
        break;
    };
    case 3: {
        whisper "three";
        break;
    };
    default: {
        whisper "other";
        break;
    };
};

wax int max = moon > tide ? moon : tide;
whisper max;

wax int shifted = moon << 2;
whisper shifted;

wax int input = read_int();
whisper input;

whisper add(moon, tide);

Build a C file

python -m selenium.main examples/hello.sel -o out.c
gcc out.c -o out
./out

Or install it as a script:

pip install -e .
seleniumc examples/hello.sel -o out.c

Notes

• The compiler is intentionally strict.
• No implicit type coercion.
• Top-level wax, seal, and statements are emitted into main.
• Function definitions become normal C functions.