mirror of
https://github.com/processone/ejabberd.git
synced 2024-11-30 16:36:29 +01:00
aed24c637f
SVN Revision: 51
169 lines
3.8 KiB
Erlang
169 lines
3.8 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : xml.erl
|
|
%%% Author : Alexey Shchepin <alexey@sevcom.net>
|
|
%%% Purpose : XML utils
|
|
%%% Created : 20 Nov 2002 by Alexey Shchepin <alexey@sevcom.net>
|
|
%%% Id : $Id$
|
|
%%%----------------------------------------------------------------------
|
|
|
|
-module(xml).
|
|
-author('alexey@sevcom.net').
|
|
-vsn('$Revision$ ').
|
|
|
|
-export([element_to_string/1,
|
|
crypt/1,
|
|
remove_cdata/1,
|
|
get_cdata/1, get_tag_cdata/1,
|
|
get_attr/2, get_attr_s/2,
|
|
get_tag_attr/2, get_tag_attr_s/2,
|
|
get_subtag/2,
|
|
get_path_s/2]).
|
|
|
|
element_to_string(El) ->
|
|
case El of
|
|
{xmlelement, Name, Attrs, Els} ->
|
|
if length(Els) > 0 ->
|
|
"<" ++ Name ++ attrs_to_string(Attrs) ++ ">" ++
|
|
lists:append(
|
|
lists:map(fun(E) -> element_to_string(E) end, Els))
|
|
++ "</" ++ Name ++ ">";
|
|
true ->
|
|
"<" ++ Name ++ attrs_to_string(Attrs) ++ "/>"
|
|
end;
|
|
{xmlcdata, CData} -> crypt(CData)
|
|
end.
|
|
|
|
|
|
attrs_to_string(Attrs) ->
|
|
lists:append(lists:map(fun(A) -> attr_to_string(A) end, Attrs)).
|
|
|
|
attr_to_string({Name, Value}) ->
|
|
" " ++ crypt(Name) ++ "='" ++ crypt(Value) ++ "'".
|
|
|
|
%crypt(S) ->
|
|
% lists:reverse(crypt(S, "")).
|
|
%
|
|
%crypt([$& | S], R) ->
|
|
% crypt(S, [$;, $p, $m, $a, $& | R]);
|
|
%crypt([$< | S], R) ->
|
|
% crypt(S, [$;, $t, $l, $& | R]);
|
|
%crypt([$> | S], R) ->
|
|
% crypt(S, [$;, $t, $g, $& | R]);
|
|
%crypt([$" | S], R) ->
|
|
% crypt(S, [$;, $t, $o, $u, $q, $& | R]);
|
|
%crypt([$' | S], R) ->
|
|
% crypt(S, [$;, $s, $o, $p, $a, $& | R]);
|
|
%crypt([C | S], R) ->
|
|
% crypt(S, [C | R]);
|
|
%crypt([], R) ->
|
|
% R.
|
|
|
|
%crypt1(S) ->
|
|
% lists:flatten([case C of
|
|
% $& -> "&";
|
|
% $< -> "<";
|
|
% $> -> ">";
|
|
% $" -> """;
|
|
% $' -> "'";
|
|
% _ -> C
|
|
% end || C <- S]).
|
|
|
|
% Not tail-recursive but it seems works faster than variants above
|
|
crypt([$& | S]) ->
|
|
[$&, $a, $m, $p, $; | crypt(S)];
|
|
crypt([$< | S]) ->
|
|
[$&, $l, $t, $; | crypt(S)];
|
|
crypt([$> | S]) ->
|
|
[$&, $g, $t, $; | crypt(S)];
|
|
crypt([$" | S]) ->
|
|
[$&, $q, $u, $o, $t, $; | crypt(S)];
|
|
crypt([$' | S]) ->
|
|
[$&, $a, $p, $o, $s, $; | crypt(S)];
|
|
crypt([C | S]) ->
|
|
[C | crypt(S)];
|
|
crypt([]) ->
|
|
[].
|
|
|
|
|
|
|
|
remove_cdata_p({xmlelement, Name, Attrs, Els}) -> true;
|
|
remove_cdata_p(_) -> false.
|
|
|
|
remove_cdata(L) -> [E || E <- L, remove_cdata_p(E)].
|
|
|
|
|
|
%remove_cdata(L) ->
|
|
% lists:reverse(remove_cdata(L, [])).
|
|
%
|
|
%remove_cdata([{xmlelement, Name, Attrs, Els} | L], R) ->
|
|
% remove_cdata(L, [{xmlelement, Name, Attrs, Els} | R]);
|
|
%remove_cdata([{xmlcdata, CData} | L], R) ->
|
|
% remove_cdata(L, R);
|
|
%remove_cdata([], R) ->
|
|
% R.
|
|
|
|
get_cdata(L) ->
|
|
get_cdata(L, "").
|
|
|
|
get_cdata([{xmlcdata, CData} | L], S) ->
|
|
get_cdata(L, S ++ CData);
|
|
get_cdata([_ | L], S) ->
|
|
get_cdata(L, S);
|
|
get_cdata([], S) ->
|
|
S.
|
|
|
|
get_tag_cdata({xmlelement, Name, Attrs, Els}) ->
|
|
get_cdata(Els).
|
|
|
|
get_attr(AttrName, Attrs) ->
|
|
case lists:keysearch(AttrName, 1, Attrs) of
|
|
{value, {_, Val}} ->
|
|
{value, Val};
|
|
_ ->
|
|
false
|
|
end.
|
|
|
|
get_attr_s(AttrName, Attrs) ->
|
|
case lists:keysearch(AttrName, 1, Attrs) of
|
|
{value, {_, Val}} ->
|
|
Val;
|
|
_ ->
|
|
""
|
|
end.
|
|
|
|
get_tag_attr(AttrName, {xmlelement, Name, Attrs, Els}) ->
|
|
get_attr(AttrName, Attrs).
|
|
|
|
get_tag_attr_s(AttrName, {xmlelement, Name, Attrs, Els}) ->
|
|
get_attr_s(AttrName, Attrs).
|
|
|
|
|
|
get_subtag({xmlelement, _, _, Els}, Name) ->
|
|
get_subtag1(Els, Name).
|
|
|
|
get_subtag1([El | Els], Name) ->
|
|
case El of
|
|
{xmlelement, Name, _, _} ->
|
|
El;
|
|
_ ->
|
|
get_subtag1(Els, Name)
|
|
end;
|
|
get_subtag1([], _) ->
|
|
false.
|
|
|
|
|
|
get_path_s(El, []) ->
|
|
El;
|
|
get_path_s(El, [{elem, Name} | Path]) ->
|
|
case get_subtag(El, Name) of
|
|
false ->
|
|
"";
|
|
SubEl ->
|
|
get_path_s(SubEl, Path)
|
|
end;
|
|
get_path_s(El, [{attr, Name}]) ->
|
|
get_tag_attr_s(Name, El);
|
|
get_path_s(El, [cdata]) ->
|
|
get_tag_cdata(El).
|
|
|