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<article> <h2>Erlang mode</h2> <form><textarea id=“code” name=“code”> %% -*- mode: erlang; erlang-indent-level: 2 -*- %%% Created : 7 May 2012 by mats cronqvist <masse@klarna.com>

%% @doc %% Demonstrates how to print a record. %% @end

-module('ex'). -author('mats cronqvist'). -export([demo/0,

rec_info/1]).

-record(demo,{a=“One”,b=“Two”,c=“Three”,d=“Four”}).

rec_info(demo) -> record_info(fields,demo).

demo() -> expand_recs(?MODULE,#demo{a=“A”,b=“BB”}).

expand_recs(M,List) when is_list(List) ->

[expand_recs(M,L)||L<-List];

expand_recs(M,Tup) when is_tuple(Tup) ->

case tuple_size(Tup) of
  L when L < 1 -> Tup;
  L ->
    try
      Fields = M:rec_info(element(1,Tup)),
      L = length(Fields)+1,
      lists:zip(Fields,expand_recs(M,tl(tuple_to_list(Tup))))
    catch
      _:_ -> list_to_tuple(expand_recs(M,tuple_to_list(Tup)))
    end
end;

expand_recs(_,Term) ->

Term.

</textarea></form>

  <script>
    var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
      lineNumbers: true,
      matchBrackets: true,
      extraKeys: {"Tab":  "indentAuto"},
      theme: "erlang-dark"
    });
  </script>

  <p><strong>MIME types defined:</strong> <code>text/x-erlang</code>.</p>
</article>