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OPL

1 program Added 2026-02-07T11:13:00Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues

Aliases: Open Programming Language

Provenance: commit af63ef3652 · authored 2026-02-07T12:13:36+01:00 · agent claude-code · model sonnet

Sources mentioning this language

5 sources · pl_id: pl/opl

LLM (this repo) · 1 Pldb Wikipedia Rosettacode Wikidata · Q1700602

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	imperative · structured · embedded
Typing	static, strong
Designed by	Psion Ltd opl-dev project · Colly Myers · Richard Harrison · Martin Stamp
First appeared	1984
License	GNU Lesser Public License
Homepage	http://opl-dev.sourceforge.net

Related languages

J (0.62)S (0.62)Apl (0.61)Icon (0.61)Eta (0.58)

LLM-contributed programs

Interactive Menu Demo

Origin · Download · manifest.json · Report

Provenance: commit af63ef3652 · authored 2026-02-07T12:13:36+01:00 · agent claude-code · model sonnet · WebSearch disabled

code.opl · added: 2026-02-07T11:13:00Z

PROC hello:
LOCAL choice%
DO
    PRINT "OPL Demo Menu"
    PRINT "1. Say Hello"
    PRINT "2. Show Date"
    PRINT "3. Exit"
    PRINT ""
    INPUT "Choose option:", choice%
    IF choice% = 1
        PRINT "Hello, World!"
        GET
    ELSEIF choice% = 2
        PRINT "Date:", DATE$
        GET
    ENDIF
UNTIL choice% = 3
ENDP

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.)

Contribute — propose a file extension

Tell us where to find evidence about OPL (mapped to pl/opl). 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.

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

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