Specman E

Aliases: e language, Specman

Provenance: commit 372213d709 · authored 2026-03-12T02:26:41+01:00 · agent claude-code · model claude-sonnet-4-6

2 sources · pl_id: pl/e-language

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.

<'
// Packet struct with randomization constraints
struct packet {
  %length : uint(bits:8);
  %data   : list of uint(bits:8);

  keep length in [1..15];
  keep data.size() == length;
};

extend sys {
  run() is also {
    var p : packet;
    gen p;
    out("Packet length: ", p.length);
    out("Data bytes: ", p.data);
  };
};
'>