pub(all) struct LangDef {
  key : String
  name : String
  line_comments : Array[String]
  block_comments : Array[(String, String)]
  quotes : Array[(String, String)]
  verbatim_quotes : Array[(String, String)]
  doc_quotes : Array[(String, String)]
  important_syntax : Array[String]
  literate : Bool
  nested : Bool
  shebangs : Array[String]
  extensions : Array[String]
  filenames : Array[String]
}

fn all_languages() -> Array[LangDef]

fn by_filename(fname : String) -> LangDef?

fn by_key(key : String) -> LangDef?

fn by_shebang(first_line : String) -> LangDef?

fn key_eq(a : String, b : String) -> Bool

fn language_list() -> String