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Embeddable Common Lisp

1 program Added 2026-02-28T11:12:52Z Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled Evidence Report issue View issues

Aliases: ECL

Provenance: commit 7945dc1c6b · authored 2026-02-28T12:13:12+01:00 · agent claude-code · model claude-sonnet-4-6

Sources mentioning this language

9 sources · pl_id: pl/ecl

LLM (this repo) · 1 Pldb Linguist Pygments Wikipedia Esolang Hyperpolyglot Rosettacode Wikidata · Q5322691

Wikipedia infobox ↗

Pulled from the wikimedia/structured-wikipedia snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and pl_fact.csv for the long-table provenance.

Paradigms	declarative · structured · data-centric
Typing	static, strong, safe
Designed by	HPCC Systems® · LexisNexis Risk Solutions
First appeared	2000
Influenced by	Prolog · Pascal · SQL · Snobol4 · C++ · Clarion
Homepage	http://hpccsystems.com/

Extensions claimed by this language

3 claims. Each row is one upstream assertion with its strength. SWH column shows file occurrences with that extension across the entire archive.

Extension	Source	Strength	SWH
`.ecl`	linguist	primary	201.6K files
`.ecl`	pygments	primary	201.6K files
`.eclxml`	linguist	secondary	479 files

Related languages

Common Lisp (0.42)Clasp (0.31)Allegro CL (0.30)WCL (0.30)Corman Lisp (0.30)

LLM-contributed programs

Fibonacci Sequence

Origin · Download · manifest.json · Report

Provenance: commit 7945dc1c6b · authored 2026-02-28T12:13:12+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled

code.lisp · license: Public Domain · added: 2026-02-28T11:12:52Z

;; Fibonacci sequence in Embeddable Common Lisp (ECL)
(defun fibonacci (n)
  (if (< n 2)
      n
      (+ (fibonacci (- n 1))
         (fibonacci (- n 2)))))

(defun print-fibs (limit)
  (loop for i from 0 to limit
        do (format t "fib(~a) = ~a~%" i (fibonacci i))))

(print-fibs 10)

Real programs from Software Heritage

No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)

Disambiguation rules

Linguist heuristic rules that predict this language when one of its claimed extensions is shared with another.

Rule	Ext	Kind	Predicates (truncated)
`h/linguist/.ecl/1`	`.ecl`	predicates	`[{"kind": "any", "regexes": [":="]}]`

Contribute — propose a file extension

Tell us where to find evidence about Embeddable Common Lisp (mapped to pl/ecl). 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/Embeddable Common Lisp/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)