return {
    s(
      "today",
      f(function ()
        return os.date "%F"
      end)
    ),

    s(
      "retrieve",
      f(function ()
        return string.format("(retrieved %s)", os.date("%F"))
      end)
    ),

    s(
      { trig = "reldate (-?%d+) \"(.+)\"", regTrig = true },
      f(function(_, snip)
        -- The point is in number of days.
        local point = 60 * 60 * 24 * snip.captures[1]

        local now = os.time()
        return os.date(snip.captures[2], now + point)
      end)
    ),

    s(
      "#!",
      fmt("#!{}", i(1, "/usr/bin/env bash"))
    ),

    parse("ie", "(i.e., $1)"),
    parse("eg", "(e.g., $1)"),
}