Xcerpt

Aliases: —

Provenance: commit f924f0f2db · authored 2026-03-11T21:15:50+01:00 · agent claude-code · model claude-sonnet-4-6

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.

%% Query persons whose age is above 30
%% Xcerpt rule-based query example

construct {
  result {
    person {
      name { $name },
      age  { $age }
    }
  }
}
where {
  some $doc in "persons.xml" : {
    persons {
      person {
        name { $name },
        age  { $age }
      }
    }
  },
  $age > 30
}