EXPL

Aliases: Experimental Programming Language, ExpL

Provenance: commit 4ecf576283 · authored 2026-02-12T12:37:58+01:00 · agent claude-code · model sonnet

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

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

int factorial(int n)
{
  decl
    int result;
  enddecl
  begin
    if (n <= 1) then
      result = 1;
    else
      result = n * factorial(n - 1);
    endif;
    return result;
  end
}

int main()
{
  decl
    int num, fact;
  enddecl
  begin
    num = 5;
    fact = factorial(num);
    write(fact);
    return 0;
  end
}