XHP

Aliases: XHP-lib

Provenance: commit 7b89f78c03 · authored 2026-03-05T10:28:17+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.

<?hh
use namespace Facebook\XHP\HTML;

async function render_greeting(string $name): Awaitable<string> {
  $xhp = <div class="greeting">
    <h1>Hello, {$name}!</h1>
    <p>Welcome to XHP templating.</p>
  </div>;
  return await $xhp->toStringAsync();
}

<<__EntryPoint>>
async function main(): Awaitable<void> {
  echo await render_greeting('World');
}