%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%% Description : Callback module for exporting XML to SGML.
-module(xmerl_sgml).
-export(['#xml-inheritance#'/0]).
%% Note: we assume XML data, so all tags are lowercase!
-export(['#root#'/4,
'#element#'/5,
'#text#'/1]).
-import(xmerl_lib, [markup/3, find_attribute/2, export_text/1]).
-include("xmerl.hrl").
'#xml-inheritance#'() -> [].
%% The '#text#' function is called for every text segment.
'#text#'(Text) ->
export_text(Text).
%% The '#root#' tag is called when the entire structure has been
%% exported. It does not appear in the structure itself.
'#root#'(Data, Attrs, [], _E) ->
case find_attribute(header, Attrs) of
{value, Hdr} ->
[Hdr, Data];
false ->
Data
end.
%% Note that SGML does not have the <Tag/> empty-element form.
%% Furthermore, for some element types, the end tag may be forbidden -
%% this can be handled by extending this module - see xmerl_otpsgml.erl
%% for an example. (By default, we always generate the end tag, to make
%% sure that the scope of a markup is not extended by mistake.)
'#element#'(Tag, Data, Attrs, _Parents, _E) ->
markup(Tag, Attrs, Data).
