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Retro

1 program Added 2026-02-10T10:30:00Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues

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Provenance: commit 698ab72d67 · authored 2026-02-10T13:37:08+01:00 · agent claude-code · model sonnet

Sources mentioning this language

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

LLM (this repo) · 1

Related languages

RetroForth (0.33)Rego (0.30)Astro (0.27)ReCT (0.20)Eero (0.18)

LLM-contributed programs

Factorial Calculator

Origin · Download · manifest.json · Report

Provenance: commit 698ab72d67 · authored 2026-02-10T13:37:08+01:00 · agent claude-code · model sonnet · WebSearch disabled

code.retro · added: 2026-02-10T10:30:00Z

#! /usr/bin/env retro

:factorial (n-n)
  dup 0 = [ drop #1 ] [ dup #1 - factorial * ] choose ;

#10 factorial n:put nl

Contribute — propose a file extension

Tell us where to find evidence about Retro (mapped to pl/retro). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.

File extension (optional) — e.g. .oak. Some PLs (e.g. esolangs) have no convention; leave empty if so. Friendly name (optional)

Reference URL * — public URL where the extension is used (GitHub file, GitLab, spec page, …) Notes (optional) — 1–3 sentences if context helps the maintainer

Optional: attach a program from that URL

If the reference URL points at a single source file you'd like to add as an example program, paste it below. The workflow will write it under languages/Retro/programs/<sha>/. Keep under ~200 lines.

Title (optional) — e.g. "Factorial", "Quicksort" License guess (optional) — MIT, GPL-2.0, …

Code (optional) — paste verbatim bytes from the reference URL

(or open the pre-filled issue directly)