function max_asciidoc_header(level)
  return math.min(level, 6)
end

return {
    parse("bf", "**$1**"),
    parse("it", "__$1__"),
    parse("tt", "\\$1\\"),
    parse("sp", "^$1^"),
    parse("sb", "~$1~"),

    parse("foot", "footnote:[$1]"),
    parse("a", "link:$1[$2]"),
    parse("var", ":$1: $2"),

    parse("audio", "audio::$1[$2]"),
    parse("video", "video::$1[$2]"),

    s("fmt",
      fmt("{}{}{}", {
        c(1, {
          t "**",
          t "__",
          t "`",
        }),
        i(2),
        rep(1),
    })),

    s("dt",
      fmt([[
        {}::
        {}
      ]], {
        i(1, "TERM"),
        i(2, "DEFINITION"),
    })),

    s("src",
      fmt([[
        [source, {}]
        ----
        {}
        ----
        {}
      ]], {
        i(1, "LANGUAGE"),
        i(2, "CODE"),
        i(0),
    })),

    s(
        { trig = "h(%d)", regTrig = true },
        fmt([[
          {} {}
          {}
          {}
        ]], {
            f(function(_, snip)
                local level = max_asciidoc_header(snip.captures[1])
                return string.rep("=", level)
            end),
            i(1, "CHAPTER"),
            d(2, function(_, snip)
                local nodes = {}
                table.insert(nodes, t "")

                local level = max_asciidoc_header(snip.captures[1])

                if level == 1 then
                    table.insert(nodes, t ":toc:")
                end

                local parent = c(1, nodes)
                if level > 1 then
                    parent = t ""
                end

                return sn(nil, parent)
            end, {}),
            i(0),
        })
    ),

    s(
      "admon",
      fmt("{}: {}", {
        c(1, {
          t "NOTE",
          t "TIP",
          t "IMPORTANT",
          t "CAUTION",
          t "WARNING",
        }),
        i(0),
    })),

    s(
      "admonB",
      fmt([[
        [{}]
        ====
        {}
        ====
        {}
      ]], {
        c(1, {
          t "NOTE",
          t "TIP",
          t "IMPORTANT",
          t "CAUTION",
          t "WARNING",
        }),
        i(2, "BODY"),
        i(0),
    })),
}