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

return {
  parse("bf", "**$1**"),
  parse("it", "__$1__"),
  parse("sp", "^$1^"),
  parse("sb", "~$1~"),
  s(
    "tt",
    fmt("{}{}{}", {
      c(1, { t("`"), t("`+") }),
      i(2, "TEXT"),
      rep(1),
    })
  ),

  parse("foot", "footnote:[$1]"),

  s(
    "link",
    fmt("link:{}[{}]", {
      i(1, "LINK"),
      rep(1),
    })
  ),

  parse("var", ":$1: $2"),

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

  s(
    "img",
    fmt(
      [[
        .{}
        image::{}[{}, {}]
        {}
      ]],
      {
        i(1, "CAPTION"),
        i(2, "IMAGE_PATH"),
        i(3, "ALT_TEXT"),
        i(4, "width=100%,height=100%"),
        i(0),
      }
    )
  ),

  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),
      }
    )
  ),
}