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  2. <title>CodeMirror: Erlang mode</title>
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  20. <li><a class=active href="#">Erlang</a>
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  23. <article>
  24. <h2>Erlang mode</h2>
  25. <form><textarea id="code" name="code">
  26. %% -*- mode: erlang; erlang-indent-level: 2 -*-
  27. %%% Created : 7 May 2012 by mats cronqvist <masse@klarna.com>
  28. %% @doc
  29. %% Demonstrates how to print a record.
  30. %% @end
  31. -module('ex').
  32. -author('mats cronqvist').
  33. -export([demo/0,
  34. rec_info/1]).
  35. -record(demo,{a="One",b="Two",c="Three",d="Four"}).
  36. rec_info(demo) -> record_info(fields,demo).
  37. demo() -> expand_recs(?MODULE,#demo{a="A",b="BB"}).
  38. expand_recs(M,List) when is_list(List) ->
  39. [expand_recs(M,L)||L<-List];
  40. expand_recs(M,Tup) when is_tuple(Tup) ->
  41. case tuple_size(Tup) of
  42. L when L < 1 -> Tup;
  43. L ->
  44. try
  45. Fields = M:rec_info(element(1,Tup)),
  46. L = length(Fields)+1,
  47. lists:zip(Fields,expand_recs(M,tl(tuple_to_list(Tup))))
  48. catch
  49. _:_ -> list_to_tuple(expand_recs(M,tuple_to_list(Tup)))
  50. end
  51. end;
  52. expand_recs(_,Term) ->
  53. Term.
  54. </textarea></form>
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