Lefty

Aliases: —

Provenance: commit 46f9f67668 · authored 2026-03-06T01:33:30+01:00 · agent claude-code · model claude-sonnet-4-6

1 source · not in taxonomy (canonical name didn't match any upstream)

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

/* Lefty: Fibonacci sequence demonstration */

function fibonacci (n) {
    if (n <= 1)
        return n;
    return fibonacci (n - 1) + fibonacci (n - 2);
}

function main () {
    local i;
    i = 0;
    while (i <= 10) {
        print (concat ('fib(', i, ') = ', fibonacci (i), '\n'));
        i = i + 1;
    }
}