The R13B03 release.OTP_R13B03

1 files changed, 162 insertions, 0 deletions

diff --git a/lib/xmerl/src/xmerl_otpsgml.erl b/lib/xmerl/src/xmerl_otpsgml.erl
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+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2004-2009. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+%%% Description  : Callback module for exporting XHTML to OTP-SGML.
+
+-module(xmerl_otpsgml).
+
+-export(['#xml-inheritance#'/0]).
+
+%% Note: we assume XML data, so all tags are lowercase!
+
+-export(['#root#'/4,
+	 '#element#'/5,
+	 '#text#'/1,
+	 p/4]).
+
+-import(xmerl_lib, [markup/3, start_tag/2, is_empty_data/1,
+		    export_text/1]).
+
+-include("xmerl.hrl").
+
+
+'#xml-inheritance#'() -> [xmerl_sgml].
+
+
+%% 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) -> 
+    ["<!doctype erlref PUBLIC \"-//Stork//DTD erlref//EN\">\n",Data].
+
+
+%% Note that SGML does not have the <Tag/> empty-element form.
+%% Furthermore, for some element types, the end tag is forbidden. (In
+%% all other cases, 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) ->
+%    io:format("parents:\n~p\n",[_Parents]),
+    case convert_tag(Tag,Attrs) of
+	{false,NewTag,NewAttrs} ->
+	    markup(NewTag, NewAttrs, Data);
+	{true,NewTag,NewAttrs} ->
+	    [start_tag(NewTag, NewAttrs), Data]
+    end.
+
+
+%% HTML tags with special handling
+
+p(Data, Attrs, _Parents, _E) ->
+    %% In general, we cannot drop the end tag for paragraph elements;
+    %% that is only allowed if we know that it is immediately followed
+    %% by some other block-level tag.
+    case is_empty_data(Data) of
+	true ->
+	    %% Paragraph elements should never be completely empty.
+	    markup(p, Attrs, "\s");
+	false ->
+	    markup(p, Attrs, Data)
+    end.
+
+
+%% Utility functions
+
+convert_tag(code,Attrs) -> convert_tag(c,Attrs);
+convert_tag(strong,Attrs) -> convert_tag(em,Attrs);
+convert_tag(b,Attrs) -> convert_tag(em,Attrs);
+convert_tag(underline,Attrs) -> convert_tag(em,Attrs); % what is underline in sgml???
+convert_tag(dl,Attrs) -> convert_tag(taglist,Attrs);
+convert_tag(dt,Attrs) -> convert_tag(tag,Attrs);
+convert_tag(dd,Attrs) -> convert_tag(item,Attrs);
+convert_tag(ul,Attrs) -> convert_tag(list,Attrs);
+convert_tag(li,Attrs) -> convert_tag(item,Attrs);
+convert_tag(tt,Attrs) -> convert_tag(c,Attrs);
+%convert_tag(a, Attrs) -> convert_tag(seealso,convert_seealso_attrs(Attrs));
+convert_tag(a, Attrs) -> convert_tag(convert_aref(Attrs),convert_aref_attrs(convert_aref(Attrs),Attrs));
+convert_tag(Tag,Attrs) -> {forbid_end(Tag),Tag,Attrs}.
+
+convert_aref([#xmlAttribute{name = href, value = V}|_Rest]) ->
+    %% search if it is a html link, thus make it a 'url' ref otherwise
+    %% a 'seealso'.
+    case html_content(V) of
+	true ->
+	    url;
+	_ ->
+	    seealso
+    end;
+convert_aref([#xmlAttribute{name = K}|Rest]) ->
+    io:format("Warning: ignoring attribute \'~p\' for tag \'a\'\n",[K]),
+    convert_aref(Rest).
+convert_aref_attrs(url,Attrs) ->
+    Attrs;
+convert_aref_attrs(SA,[#xmlAttribute{name = href, value = V}=A|Rest]) ->
+    [A#xmlAttribute{name=marker,value=V}|convert_aref_attrs(SA,Rest)];
+convert_aref_attrs(_,[])->
+    [].
+html_content([]) ->
+    false;
+html_content([$.|Rest]) ->
+    case Rest of
+	"htm"++_EmaNfeR ->
+	    true;
+	_ -> html_content(Rest)
+    end;
+html_content([_H|T]) ->
+    html_content(T).
+
+% convert_seealso_attrs([#xmlAttribute{name = href, value = V} = A|Rest]) ->
+%     [A#xmlAttribute{name=marker,value=normalize_web_ref(V)}|convert_seealso_attrs(Rest)];
+% convert_seealso_attrs([#xmlAttribute{name = K}|Rest]) ->
+%     io:format("Warning: ignoring attribute \'~p\' for tag \'a\'\n",[K]),
+%     convert_seealso_attrs(Rest);
+% convert_seealso_attrs([]) ->
+%     [].
+
+% normalize_web_ref(RefName) ->
+%     normalize_web_ref1(lists:reverse(RefName)).
+
+% normalize_web_ref1("lmth."++EmaNfeR) ->
+%     lists:reverse(EmaNfeR);
+% normalize_web_ref1("mth"++EmaNfeR) ->
+%     lists:reverse(EmaNfeR);
+% normalize_web_ref1(RefName) ->
+%     RefName.
+
+forbid_end(area) -> true; 
+forbid_end(base) -> true; 
+forbid_end(basefont) -> true; 
+forbid_end(br) -> true; 
+forbid_end(col) -> true; 
+forbid_end(frame) -> true; 
+forbid_end(hr) -> true; 
+forbid_end(img) -> true; 
+forbid_end(input) -> true; 
+forbid_end(isindex) -> true; 
+forbid_end(link) -> true; 
+forbid_end(marker) -> true; 
+forbid_end(meta) -> true; 
+forbid_end(param) -> true; 
+forbid_end(_) -> false.