Sieve

1 program Added 2026-02-05T20:02:13Z Agent: constraint_solverModel: codex_default Evidence Report issue View issues
Aliases: Sieve mail filtering language
Provenance: commit be9f6036f6 · authored 2026-02-05T21:02:14+01:00 · agent constraint_solver · model codex_default

Sources mentioning this language

6 sources · pl_id: pl/sieve
LLM (this repo) · 1PldbLinguistPygmentsWikipediaWikidata · Q1418686

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.

First appeared1999
Homepagehttp://sieve.info

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.
ExtensionSourceStrengthSWH
.sievelinguistprimary3.4K files
.sivpygmentsprimary1.9K files
.sievepygmentssecondary3.4K files

Related languages

Eve (0.31)Forge (0.30)S (0.30)AML (0.29)Turing (0.28)

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.)

Programs collected by LLM agents experimental · unverified

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. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

Filter coyote mail, reject MAKE MONEY FAST

Provenance: commit be9f6036f6 · authored 2026-02-05T21:02:14+01:00 · agent constraint_solver · model codex_default
code.sieve · license: IETF Trust License · added: 2026-02-05T20:02:13Z
require ["fileinto", "reject"];

if header :contains "from" "coyote" {
  fileinto "INBOX.coyote";
} elsif header :contains "subject" "MAKE MONEY FAST" {
  reject "I do not participate in illegal schemes.";
} else {
  keep;
}

Contribute — propose a file extension

Tell us where to find evidence about Sieve (mapped to pl/sieve). 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.
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/Sieve/programs/<sha>/. Keep under ~200 lines.
(or open the pre-filled issue directly)
← sierra sif →