%%-*-erlang-*-
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2008-2017. 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%
%%----------------------------------------------------------------------
%% Start of common source
%%----------------------------------------------------------------------
%-compile(export_all).
%%----------------------------------------------------------------------
%% Include files
%%----------------------------------------------------------------------
-include("xmerl_sax_parser.hrl").
%%----------------------------------------------------------------------
%% External exports
%%----------------------------------------------------------------------
-export([parse/2,
parse_dtd/2,
is_name_char/1,
is_name_start/1]).
%%----------------------------------------------------------------------
%% Internal exports
%%----------------------------------------------------------------------
-export([
cf/3,
cf/4,
cf/5
]).
%%----------------------------------------------------------------------
%% Records
%%----------------------------------------------------------------------
%%----------------------------------------------------------------------
%% Macros
%%----------------------------------------------------------------------
-define(HTTP_DEF_PORT, 80).
%%======================================================================
%% External functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function: parse(Xml, State) -> Result
%% Input: Xml = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {ok, Rest, EventState} |
%% EventState = term()
%% Description: Parsing XML from input stream.
%%----------------------------------------------------------------------
parse(Xml, State) ->
RefTable = ets:new(xmerl_sax_entity_refs, [private]),
State1 = event_callback(startDocument, State),
case catch parse_document(Xml, State1#xmerl_sax_parser_state{ref_table=RefTable}) of
{ok, Rest, State2} ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
case check_if_rest_ok(State3#xmerl_sax_parser_state.input_type, Rest) of
true ->
{ok, State3#xmerl_sax_parser_state.event_state, Rest};
false ->
format_error(fatal_error, State3, "Input found after legal document")
end;
{fatal_error, {State2, Reason}} ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
format_error(fatal_error, State3, Reason);
{event_receiver_error, State2, {Tag, Reason}} ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
format_error(Tag, State3, Reason);
{endDocument, Rest, State2} ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
{ok, State3#xmerl_sax_parser_state.event_state, Rest};
Other ->
_State2 = event_callback(endDocument, State1),
ets:delete(RefTable),
{fatal_error, Other}
end.
%%----------------------------------------------------------------------
%% Function: parse_dtd(Xml, State) -> Result
%% Input: Xml = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {ok, Rest, EventState} |
%% EventState = term()
%% Description: Parsing XML DTD from input stream.
%%----------------------------------------------------------------------
parse_dtd(Xml, State) ->
RefTable = ets:new(xmerl_sax_entity_refs, [private]),
State1 = event_callback(startDocument, State),
case catch parse_external_entity_1(Xml, State1#xmerl_sax_parser_state{ref_table=RefTable}) of
{fatal_error, {State2, Reason}} ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
format_error(fatal_error, State3, Reason);
{event_receiver_error, State2, {Tag, Reason}} ->
State3 = event_callback(endDocument, State2),
format_error(Tag, State3, Reason);
{Rest, State2} when is_record(State2, xmerl_sax_parser_state) ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
{ok, State3#xmerl_sax_parser_state.event_state, Rest};
{endDocument, Rest, State2} when is_record(State2, xmerl_sax_parser_state) ->
State3 = event_callback(endDocument, State2),
ets:delete(RefTable),
{ok, State3#xmerl_sax_parser_state.event_state, Rest};
Other ->
_State2 = event_callback(endDocument, State1),
ets:delete(RefTable),
{fatal_error, Other}
end.
%%======================================================================
%% Internal functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function: parse_document(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {ok, Rest, State}
%% Description: Parsing an XML document
%% [1] document ::= prolog element Misc*
%%----------------------------------------------------------------------
parse_document(Rest, State) when is_record(State, xmerl_sax_parser_state) ->
{Rest1, State1} = parse_byte_order_mark(Rest, State),
{Rest2, State2} = parse_misc(Rest1, State1, true),
{ok, Rest2, State2}.
?PARSE_BYTE_ORDER_MARK(Bytes, State).
%%----------------------------------------------------------------------
%% Function: parse_xml_decl(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Parsing the xml directive in the prolog.
%% [22] prolog ::= XMLDecl? Misc* (doctypedecl Misc*)?
%% [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
%%----------------------------------------------------------------------
parse_xml_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_xml_decl/2);
parse_xml_decl(?STRING("<") = Bytes, State) ->
cf(Bytes, State, fun parse_xml_decl/2);
parse_xml_decl(?STRING("<?") = Bytes, State) ->
cf(Bytes, State, fun parse_xml_decl/2);
parse_xml_decl(?STRING("<?x") = Bytes, State) ->
cf(Bytes, State, fun parse_xml_decl/2);
parse_xml_decl(?STRING("<?xm") = Bytes, State) ->
cf(Bytes, State, fun parse_xml_decl/2);
parse_xml_decl(?STRING("<?xml") = Bytes, State) ->
cf(Bytes, State, fun parse_xml_decl/2);
parse_xml_decl(?STRING_REST("<?xml", Rest1), State) ->
parse_xml_decl_rest(Rest1, State);
?PARSE_XML_DECL(Bytes, State).
parse_xml_decl_rest(?STRING_UNBOUND_REST(C, Rest) = Bytes, State) ->
if
?is_whitespace(C) ->
{_XmlAttributes, Rest1, State1} = parse_version_info(Rest, State, []),
parse_prolog(Rest1, State1);
true ->
parse_prolog(?STRING_REST("<?xml", Bytes), State)
end;
parse_xml_decl_rest(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_xml_decl_rest/2], undefined).
%%----------------------------------------------------------------------
%% Function: parse_prolog(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Parsing XML prolog
%% [22] prolog ::= XMLDecl? Misc* (doctypedecl Misc*)?
%%----------------------------------------------------------------------
parse_prolog(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_prolog/2);
parse_prolog(?STRING("<") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog/2);
parse_prolog(?STRING_REST("<?", Rest), State) ->
case parse_pi(Rest, State) of
{Rest1, State1} ->
parse_prolog(Rest1, State1);
{endDocument, Rest1, State1} ->
parse_prolog(Rest1, State1)
end;
parse_prolog(?STRING_REST("<!", Rest), State) ->
parse_prolog_1(Rest, State);
parse_prolog(?STRING_REST("<", Rest), State) ->
parse_stag(Rest, State);
parse_prolog(?STRING_UNBOUND_REST(C, _) = Rest, State) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_prolog(Rest1, State1);
parse_prolog(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_prolog/2],
"expecting < or whitespace").
parse_prolog_1(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING("D") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING("DO") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING("DOC") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING("DOCT") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING("DOCTY") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING("DOCTYP") = Bytes, State) ->
cf(Bytes, State, fun parse_prolog_1/2);
parse_prolog_1(?STRING_REST("DOCTYPE", Rest), State) ->
{Rest1, State1} = parse_doctype(Rest, State),
State2 = event_callback(endDTD, State1),
parse_prolog(Rest1, State2);
parse_prolog_1(?STRING("-"), State) ->
cf(?STRING("-"), State, fun parse_prolog_1/2);
parse_prolog_1(?STRING_REST("--", Rest), State) ->
{Rest1, State1} = parse_comment(Rest, State, []),
parse_prolog(Rest1, State1);
parse_prolog_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_prolog_1/2],
"expecting comment or DOCTYPE").
%%----------------------------------------------------------------------
%% Function: parse_version_info(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = [{Name, Value}]
%% Name = string()
%% Value = string()
%% Output: Result = {[{Name, Value}], Rest, State}
%% Description: Parsing the version number in the XML directive.
%% [24] VersionInfo ::= S 'version' Eq (' VersionNum ' | " VersionNum ")
%%----------------------------------------------------------------------
parse_version_info(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_version_info/3);
parse_version_info(?STRING_UNBOUND_REST(C, _) = Rest, State, Acc) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_version_info(Rest1, State1, Acc);
parse_version_info(?STRING_UNBOUND_REST(C,Rest), State, Acc) ->
case is_name_start(C) of
true ->
case parse_name(Rest, State, [C]) of
{"version", Rest1, State1} ->
{Rest2, State2} = parse_eq(Rest1, State1),
{Version, Rest3, State3} = parse_att_value(Rest2, State2),
parse_xml_decl_rest(Rest3, State3, [{"version",Version}|Acc]);
{_, _, State1} ->
?fatal_error(State1, "expecting attribute version")
end;
false ->
?fatal_error(State, "expecting attribute version")
end;
parse_version_info(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_version_info/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_xml_decl_rest(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = [{Name, Value}]
%% Name = string()
%% Value = string()
%% Output: Result = {[{Name, Value}], Rest, State}
%% Description: Checks if there is more to parse in the XML directive.
%%----------------------------------------------------------------------
parse_xml_decl_rest(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_xml_decl_rest/3);
parse_xml_decl_rest(?STRING("?") = Rest, State, Acc) ->
cf(Rest, State, Acc, fun parse_xml_decl_rest/3);
parse_xml_decl_rest(?STRING_REST("?>", Rest), State, Acc) ->
{lists:reverse(Acc), Rest, State};
parse_xml_decl_rest(?STRING_UNBOUND_REST(C, _) = Rest, State, Acc) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_xml_decl_encoding(Rest1, State1, Acc);
parse_xml_decl_rest(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_xml_decl_rest/3],
"expecting encoding, standalone, whitespace or ?>").
%%----------------------------------------------------------------------
%% Function: parse_xml_decl_encoding(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = [{Name, Value}]
%% Name = string()
%% Value = string()
%% Output: Result = {[{Name, Value}], Rest, State}
%% Description: Parse the encoding attribute in the XML directive.
%% [80] EncodingDecl ::= S 'encoding' Eq ('"' EncName '"' | "'" EncName "'" )
% [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
%%----------------------------------------------------------------------
parse_xml_decl_encoding(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_xml_decl_encoding/3);
parse_xml_decl_encoding(?STRING_REST("e", Rest), State, Acc) ->
case parse_name(Rest, State,[$e]) of
{"encoding", Rest1, State1} ->
{Rest2, State2} = parse_eq(Rest1, State1),
{Enc, Rest3, State3} = parse_att_value(Rest2, State2),
parse_xml_decl_encoding_1(Rest3, State3, [{"encoding",Enc} |Acc]);
{Name, _Rest1, State1} ->
?fatal_error(State1, "Attribute " ++ Name ++
" not allowed in xml declaration")
end;
parse_xml_decl_encoding(?STRING_UNBOUND_REST(_C, _) = Bytes, State, Acc) ->
parse_xml_decl_standalone(Bytes, State, Acc);
parse_xml_decl_encoding(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_xml_decl_encoding/3],
undefined).
parse_xml_decl_encoding_1(?STRING_UNBOUND_REST(C, _) = Bytes, State, Acc) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Bytes, State, []),
parse_xml_decl_standalone(Rest1, State1, Acc);
parse_xml_decl_encoding_1(?STRING_UNBOUND_REST(_C, _) = Bytes, State, Acc) ->
parse_xml_decl_rest(Bytes, State, Acc);
parse_xml_decl_encoding_1(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_xml_decl_encoding_1/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_xml_decl_standalone(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = [{Name, Value}]
%% Name = string()
%% Value = string()
%% Output: Result = {[{Name, Value}], Rest, State}
%% Description: Parse the standalone attribute in the XML directive.
%% [32] SDDecl ::= S 'standalone' Eq (("'" ('yes' | 'no') "'") |
%% ('"' ('yes' | 'no') '"'))
%%----------------------------------------------------------------------
parse_xml_decl_standalone(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_xml_decl_standalone/3);
parse_xml_decl_standalone(?STRING_REST("s", Rest), State, Acc) ->
case parse_name(Rest, State,[$s]) of
{"standalone", Rest1, State1} ->
{Rest2, State2} = parse_eq(Rest1, State1),
{Standalone, Rest3, State3} = parse_att_value(Rest2, State2),
case Standalone of
"yes" -> ok;
"no" -> ok;
_ ->
?fatal_error(State3, "Wrong value of attribute standalone in xml declaration, must be yes or no")
end,
{_WS, Rest4, State4} = whitespace(Rest3, State3, []),
parse_xml_decl_rest(Rest4, State4#xmerl_sax_parser_state{standalone=list_to_atom(Standalone)},
[{"standalone",Standalone} |Acc]);
{Name, _Rest1, State1} ->
?fatal_error(State1, "Attribute " ++ Name ++
" not allowed in xml declaration")
end;
parse_xml_decl_standalone(?STRING_UNBOUND_REST(_C, _) = Bytes, State, Acc) ->
parse_xml_decl_rest(Bytes, State, Acc);
parse_xml_decl_standalone(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_xml_decl_standalone/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_pi(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Parse processing instructions.
%% [16] PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
%% [17] PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l'))
%%----------------------------------------------------------------------
parse_pi(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_pi/2);
parse_pi(?STRING_UNBOUND_REST(C, Rest) = Bytes, State) ->
case is_name_start(C) of
true ->
{PiTarget, Rest1, State1} =
parse_name(Rest, State, [C]),
case string:to_lower(PiTarget) of
"xml" ->
case check_if_new_doc_allowed(State#xmerl_sax_parser_state.input_type,
State#xmerl_sax_parser_state.end_tags) of
true ->
{endDocument, Bytes, State};
false ->
?fatal_error(State1, "<?xml ...?> not first in document")
end;
_ ->
{PiData, Rest2, State2} = parse_pi_1(Rest1, State1),
State3 = event_callback({processingInstruction, PiTarget, PiData}, State2),
{Rest2, State3}
end;
false ->
?fatal_error(State, "expecting name")
end;
parse_pi(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_pi/2], undefined).
check_if_new_doc_allowed(stream, []) ->
true;
check_if_new_doc_allowed(_, _) ->
false.
check_if_rest_ok(file, []) ->
true;
check_if_rest_ok(file, <<>>) ->
true;
check_if_rest_ok(stream, _) ->
true;
check_if_rest_ok(_, _) ->
false.
%%----------------------------------------------------------------------
%% Function: parse_pi_1(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Parse processing instructions.
%%----------------------------------------------------------------------
parse_pi_1(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_pi_1/2);
parse_pi_1(?STRING_UNBOUND_REST(C,_) = Rest, State) when ?is_whitespace(C) ->
{_WS, Rest1, State1} =
whitespace(Rest, State, []),
parse_pi_data(Rest1, State1, []);
parse_pi_1(?STRING_REST("?>", Rest), State) ->
{[], Rest, State};
parse_pi_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_pi/2],
"expecting whitespace or '?>'").
%%----------------------------------------------------------------------
%% Function: parse_name(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Output: Result = {Name, Rest, State}
%% Name = string()
%% Description: Parse a name. Next character is put in the accumulator
%% if it's a valid name character.
%% [5] Name ::= (Letter | '_' | ':') (NameChar)*
%%----------------------------------------------------------------------
parse_name(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_name/3);
parse_name(?STRING_UNBOUND_REST(C, Rest) = Bytes, State, Acc) ->
case is_name_char(C) of
true ->
parse_name(Rest, State, [C|Acc]);
false ->
{lists:reverse(Acc), Bytes, State}
end;
parse_name(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_name/3], undefined).
%%----------------------------------------------------------------------
%% Function: parse_ns_name(Rest, State, Prefix, Name) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Prefix = string()
%% Name = string()
%% Output: Result = {{Prefix, Name}, Rest, State}
%% Name = string()
%% Description: Parse a namespace name. Next character is put in the
%% accumulator if it's a valid name character.
%% The difference between this function and parse_name/3 is
%% that a colon is interpreted as a separator between the
%% namespace prefix and the name.
%%----------------------------------------------------------------------
parse_ns_name(?STRING_EMPTY, State, Prefix, Name) ->
cf(?STRING_EMPTY, State, Prefix, Name, fun parse_ns_name/4);
parse_ns_name(?STRING_UNBOUND_REST($:, Rest), State, [], Name) ->
parse_ns_name(Rest, State, lists:reverse(Name), []);
parse_ns_name(?STRING_UNBOUND_REST(C, Rest) = Bytes, State, Prefix, Name) ->
case is_name_char(C) of
true ->
parse_ns_name(Rest, State, Prefix, [C|Name]);
false ->
{{Prefix,lists:reverse(Name)}, Bytes, State}
end;
parse_ns_name(Bytes, State, Prefix, Name) ->
unicode_incomplete_check([Bytes, State, Prefix, Name, fun parse_ns_name/4],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_pi_data(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Output: Result = {PiData, Rest, State}
%% PiData = string()
%% Description: Parse the data part of the processing instruction.
%% If next character is valid it's put in the accumulator.
%%----------------------------------------------------------------------
parse_pi_data(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_pi_data/3);
parse_pi_data(?STRING("?") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_pi_data/3);
parse_pi_data(?STRING("\r") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_pi_data/3);
parse_pi_data(?STRING_REST("?>", Rest), State, Acc) ->
{lists:reverse(Acc), Rest, State};
parse_pi_data(?STRING_REST("\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_pi_data(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
parse_pi_data(?STRING_REST("\r\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_pi_data(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
parse_pi_data(?STRING_REST("\r", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_pi_data(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
parse_pi_data(?STRING_UNBOUND_REST(C, Rest), State, Acc) when ?is_char(C)->
parse_pi_data(Rest, State, [C|Acc]);
parse_pi_data(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_pi_data/3],
"not an character").
%%----------------------------------------------------------------------
%% Function: parse_cdata(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Start the parsing of a CDATA block.
%% [18] CDSect ::= CDStart CData CDEnd
%% [19] CDStart ::= '<![CDATA['
%% [20] CData ::= (Char* - (Char* ']]>' Char*))
%% [21] CDEnd ::= ']]>'
%%----------------------------------------------------------------------
parse_cdata(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_cdata/2);
parse_cdata(?STRING("[") = Bytes, State) ->
cf(Bytes, State, fun parse_cdata/2);
parse_cdata(?STRING("[C") = Bytes, State) ->
cf(Bytes, State, fun parse_cdata/2);
parse_cdata(?STRING("[CD") = Bytes, State) ->
cf(Bytes, State, fun parse_cdata/2);
parse_cdata(?STRING("[CDA") = Bytes, State) ->
cf(Bytes, State, fun parse_cdata/2);
parse_cdata(?STRING("[CDAT") = Bytes, State) ->
cf(Bytes, State, fun parse_cdata/2);
parse_cdata(?STRING("[CDATA") = Bytes, State) ->
cf(Bytes, State, fun parse_cdata/2);
parse_cdata(?STRING_REST("[CDATA[", Rest), State) ->
State1 = event_callback(startCDATA, State),
parse_cdata(Rest, State1, []);
parse_cdata(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_cdata/2],
"expecting comment or CDATA").
%%----------------------------------------------------------------------
%% Function: parse_cdata(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Output: Result = {Rest, State}
%% Description: Parse a CDATA block.
%%----------------------------------------------------------------------
parse_cdata(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_cdata/3);
parse_cdata(?STRING("\r") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_cdata/3);
parse_cdata(?STRING("]") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_cdata/3);
parse_cdata(?STRING("]]") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_cdata/3);
parse_cdata(?STRING_REST("]]>", Rest), State, Acc) ->
State1 = event_callback({characters, lists:reverse(Acc)}, State),
State2 = event_callback(endCDATA, State1),
parse_content(Rest, State2, [], true);
parse_cdata(?STRING_REST("\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_cdata(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
parse_cdata(?STRING_REST("\r\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_cdata(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
parse_cdata(?STRING_REST("\r", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_cdata(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
parse_cdata(?STRING_UNBOUND_REST(C, Rest), State, Acc) when ?is_char(C) ->
parse_cdata(Rest, State, [C|Acc]);
parse_cdata(?STRING_UNBOUND_REST(C, _), State, _) ->
?fatal_error(State, "CDATA contains bad character value: " ++ [C]);
parse_cdata(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_cdata/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_comment(Rest, State, Acc) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Output: Result = {Rest, State}
%% Description: Parse a comment.
%% [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
%%----------------------------------------------------------------------
parse_comment(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_comment/3);
parse_comment(?STRING("\r") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_comment/3);
parse_comment(?STRING("-") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_comment/3);
parse_comment(?STRING("--") = Bytes, State, Acc) ->
cf(Bytes, State, Acc, fun parse_comment/3);
parse_comment(?STRING_REST("-->", Rest), State, Acc) ->
State1 = event_callback({comment, lists:reverse(Acc)}, State),
{Rest, State1};
parse_comment(?STRING_REST("--", _), State, _) ->
?fatal_error(State, "comment contains '--'");
parse_comment(?STRING_REST("\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_comment(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf|Acc]);
parse_comment(?STRING_REST("\r\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_comment(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf|Acc]);
parse_comment(?STRING_REST("\r", Rest), #xmerl_sax_parser_state{line_no=N} = State, Acc) ->
parse_comment(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf|Acc]);
parse_comment(?STRING_UNBOUND_REST(C, Rest), State, Acc) ->
if
?is_char(C) ->
parse_comment(Rest, State, [C|Acc]);
true ->
?fatal_error(State, "Bad character in comment: " ++ C)
end;
parse_comment(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_comment/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_misc(Rest, State, Eod) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Eod = true |false
%% Output: Result = {Rest, State}
%% Description: Parse a misc clause, could be a comment, a processing
%% instruction or whitespace. If the input stream is empty
%% (Eod parameter true) then we return current state and quit.
%% [27] Misc ::= Comment | PI | S
%%----------------------------------------------------------------------
parse_misc(?STRING_EMPTY, State, true) ->
{?STRING_EMPTY, State};
parse_misc(?STRING_EMPTY, State, Eod) ->
cf(?STRING_EMPTY, State, Eod, fun parse_misc/3);
parse_misc(?STRING("<") = Rest, State, Eod) ->
cf(Rest, State, Eod, fun parse_misc/3);
parse_misc(?STRING_REST("<?", Rest), State, Eod) ->
case parse_pi(Rest, State) of
{Rest1, State1} ->
parse_misc(Rest1, State1, Eod);
{endDocument, _Rest1, State1} ->
IValue = ?TO_INPUT_FORMAT("<?"),
{?APPEND_STRING(IValue, Rest), State1}
end;
parse_misc(?STRING("<!") = Rest, State, Eod) ->
cf(Rest, State, Eod, fun parse_misc/3);
parse_misc(?STRING("<!-") = Rest, State, Eod) ->
cf(Rest, State, Eod, fun parse_misc/3);
parse_misc(?STRING_REST("<!--", Rest), State, Eod) ->
{Rest1, State1} = parse_comment(Rest, State, []),
parse_misc(Rest1, State1, Eod);
parse_misc(?STRING_UNBOUND_REST(C, _) = Rest, State, Eod) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_misc(Rest1, State1, Eod);
parse_misc(Rest, State, _Eod) ->
{Rest, State}.
%% unicode_incomplete_check([Bytes, State, Eod, fun parse_misc/3],
%% "expecting comment or PI").
%%----------------------------------------------------------------------
%% Function: parse_stag(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Parsing a start tag.
%% [40] STag ::= '<' Name (S Attribute)* S? '>'
%%----------------------------------------------------------------------
parse_stag(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_stag/2);
parse_stag(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{TagName, Rest1, State1} =
parse_ns_name(Rest, State, [], [C]),
parse_attributes(Rest1, State1, {TagName, [], []});
false ->
?fatal_error(State, "expecting name")
end;
parse_stag(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_stag/2],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_attributes(Rest, State, CurrentTag) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% CurrentTag = {Name, AttList, NewNsList}
%% Name = string()
%% AttList = [{Name, Value}]
%% NewNsList = [{Name, Value}]
%% Output: Result = {Rest, State}
%% Description: Parsing the attribute list in the start tag. The current
%% tag tuple contains the tag name, a list of attributes
%% (exclusive NS attributes) and a list of new NS attributes.
%% [41] Attribute ::= Name Eq AttValue
%%----------------------------------------------------------------------
parse_attributes(?STRING_EMPTY, State, CurrentTag) ->
cf(?STRING_EMPTY, State, CurrentTag, fun parse_attributes/3);
parse_attributes(?STRING("/") = Bytes, State, CurrentTag) ->
cf(Bytes, State, CurrentTag, fun parse_attributes/3);
parse_attributes(?STRING_REST("/>", Rest), State, {Tag, AttList, NewNsList}) ->
CompleteNsList = NewNsList ++ State#xmerl_sax_parser_state.ns,
{Uri, LocalName, QName, Attributes} = fix_ns(Tag, AttList, CompleteNsList),
State1 = send_start_prefix_mapping_event(lists:reverse(NewNsList), State),
State2 = event_callback({startElement, Uri, LocalName, QName, Attributes}, State1),
State3 = event_callback({endElement, Uri, LocalName, QName}, State2),
State4 = send_end_prefix_mapping_event(NewNsList, State3),
parse_content(Rest, State4, [], true);
parse_attributes(?STRING_REST(">", Rest), #xmerl_sax_parser_state{end_tags=ETags, ns = OldNsList} = State,
{Tag, AttList, NewNsList}) ->
CompleteNsList = NewNsList ++ OldNsList,
{Uri, LocalName, QName, Attributes} = fix_ns(Tag, AttList, CompleteNsList),
State1 = send_start_prefix_mapping_event(lists:reverse(NewNsList), State),
State2 = event_callback({startElement, Uri, LocalName, QName, Attributes}, State1),
parse_content(Rest, State2#xmerl_sax_parser_state{end_tags=[{Tag, Uri, LocalName, QName,
OldNsList, NewNsList} |ETags],
ns = CompleteNsList},
[], true);
parse_attributes(?STRING_UNBOUND_REST(C, _) = Rest, State, CurrentTag) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_attributes(Rest1, State1, CurrentTag);
parse_attributes(?STRING_UNBOUND_REST(C, Rest), State, {Tag, AttList, NsList}) ->
case is_name_start(C) of
true ->
{AttrName, Rest1, State1} =
parse_ns_name(Rest, State, [], [C]),
{Rest2, State2} = parse_eq(Rest1, State1),
{AttValue, Rest3, State3} = parse_att_value(Rest2, State2),
case AttrName of
{"xmlns", NsName} ->
parse_attributes(Rest3, State3, {Tag, AttList, [{NsName, AttValue} |NsList]});
{"", "xmlns"} ->
parse_attributes(Rest3, State3, {Tag, AttList, [{"", AttValue} |NsList]});
{_Prefix, _LocalName} ->
case lists:keyfind(AttrName, 1, AttList) of
false ->
parse_attributes(Rest3, State3, {Tag, [{AttrName, AttValue}|AttList], NsList});
_ ->
ElName =
case Tag of
{"", N} -> N;
{Ns, N} -> Ns ++ ":" ++ N
end,
?fatal_error(State, "Attribute exist more than once in element: " ++ ElName)
end
end;
false ->
?fatal_error(State, "Invalid start character in attribute name: " ++ [C])
end;
parse_attributes(Bytes, State, CurrentTag) ->
unicode_incomplete_check([Bytes, State, CurrentTag, fun parse_attributes/3],
"expecting name, whitespace, /> or >").
%%----------------------------------------------------------------------
%% Function: fix_ns({Prefix, Name}, Attributes, Ns) -> Result
%% Input: Prefix = string()
%% Name = string()
%% Attributes = [{Name, Value}]
%% Ns = [{Prefix, Uri}]
%% Uri = string()
%% Output: Result = {Uri, Name, QualifiedName, Attributes}
%% QualifiedName = string()
%% Description: Fix the name space prefixing for the attributes and start tag.
%%----------------------------------------------------------------------
% fix_ns({"", Name}, Attributes, Ns) ->
% Attributes2 = fix_attributes_ns(Attributes, Ns, []),
% {"", Name, Name, Attributes2};
fix_ns({Prefix, Name}, Attributes, Ns) ->
Uri =
case lists:keysearch(Prefix, 1, Ns) of
{value, {Prefix, U}} ->
U;
false ->
""
end,
Attributes2 = fix_attributes_ns(Attributes, Ns, []),
{Uri, Name, {Prefix, Name}, Attributes2}.
%%----------------------------------------------------------------------
%% Function: fix_attributes_ns(Attributes, Ns, Acc) -> Result
%% Input: Attributes = [{{Prefix, Name}, Value}]
%% Prefix = string()
%% Name = string()
%% Value = string()
%% Ns = [{Prefix, Uri}]
%% Uri = string()
%% Output: Result = [{Uri, Name, Value}]
%% Description: Fix the name spaces for the attributes.
%%----------------------------------------------------------------------
fix_attributes_ns([], _, Acc) ->
Acc;
fix_attributes_ns([{{"", Name}, AttrValue} | Attrs], Ns, Acc) ->
fix_attributes_ns(Attrs, Ns, [{"", "", Name, AttrValue} |Acc]);
fix_attributes_ns([{{Prefix, Name}, AttrValue} | Attrs], Ns, Acc) ->
Uri =
case lists:keysearch(Prefix, 1, Ns) of
{value, {Prefix, U}} ->
U;
false ->
""
end,
fix_attributes_ns(Attrs, Ns, [{Uri, Prefix, Name, AttrValue} |Acc]).
%%----------------------------------------------------------------------
%% Function: send_start_prefix_mapping_event(Ns, State) -> Result
%% Input: Ns = [{Prefix, Uri}]
%% Prefix = string()
%% Uri = string()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = #xmerl_sax_parser_state{}
%% Description: Loops over a name space list and sends startPrefixMapping events.
%%----------------------------------------------------------------------
send_start_prefix_mapping_event([], State) ->
State;
send_start_prefix_mapping_event([{Prefix, Uri} |Ns], State) ->
State1 = event_callback({startPrefixMapping, Prefix, Uri}, State),
send_start_prefix_mapping_event(Ns, State1).
%%----------------------------------------------------------------------
%% Function: send_end_prefix_mapping_event(Ns, State) -> Result
%% Input: Ns = [{Prefix, Uri}]
%% Prefix = string()
%% Uri = string()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = #xmerl_sax_parser_state{}
%% Description: Loops over a name space list and sends endPrefixMapping events.
%%----------------------------------------------------------------------
send_end_prefix_mapping_event([], State) ->
State;
send_end_prefix_mapping_event([{Prefix, _Uri} |Ns], State) ->
State1 = event_callback({endPrefixMapping, Prefix}, State),
send_end_prefix_mapping_event(Ns, State1).
%%----------------------------------------------------------------------
%% Function: parse_eq(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Parsing an '=' from the stream.
%% [25] Eq ::= S? '=' S?
%%----------------------------------------------------------------------
parse_eq(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_eq/2);
parse_eq(?STRING_REST("=", Rest), State) ->
{Rest, State};
parse_eq(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} =
whitespace(Bytes, State, []),
parse_eq(Rest, State1);
parse_eq(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_eq/2],
"expecting = or whitespace").
%%----------------------------------------------------------------------
%% Function: parse_att_value(Rest, State) -> Result
%% Input: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Output: Result = {Rest, State}
%% Description: Start the parsing of an attribute value by checking the delimiter
%% [10] AttValue ::= '"' ([^<&"] | Reference)* '"'
%% | "'" ([^<&'] | Reference)* "'"
%%----------------------------------------------------------------------
parse_att_value(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_att_value/2);
parse_att_value(?STRING_UNBOUND_REST(C, Rest), State) when C == $'; C == $" ->
parse_att_value(Rest, State, C, []);
parse_att_value(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} =
whitespace(Bytes, State, []),
parse_att_value(Rest, State1);
parse_att_value(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_att_value/2],
"\', \" or whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_att_value(Rest, State, Stop, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Stop = $' | $"
%% Acc = string()
%% Result : {Value, Rest, State}
%% Value = string()
%% Description: Parse an attribute value
%%----------------------------------------------------------------------
parse_att_value(?STRING_EMPTY, State, undefined, Acc) ->
{Acc, [], State}; %% stop clause when parsing references
parse_att_value(?STRING_EMPTY, State, Stop, Acc) ->
cf(?STRING_EMPTY, State, Stop, Acc, fun parse_att_value/4);
parse_att_value(?STRING("\r") = Bytes, State, Stop, Acc) ->
cf(Bytes, State, Stop, Acc, fun parse_att_value/4);
parse_att_value(?STRING_REST("\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_att_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_att_value(?STRING_REST("\r\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_att_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_att_value(?STRING_REST("\r", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_att_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_att_value(?STRING_REST("\t", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_att_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_att_value(?STRING_REST("&", Rest), State, Stop, Acc) ->
{Ref, Rest1, State1} = parse_reference(Rest, State, true),
case Ref of
{character, _, CharValue} ->
parse_att_value(Rest1, State1, Stop, [CharValue | Acc]);
{internal_general, true, _, Value} ->
parse_att_value(Rest1, State1, Stop, Value ++ Acc);
{internal_general, false, _, Value} ->
{ParsedValue, [], State2} = parse_att_value(?TO_INPUT_FORMAT(Value), State1, undefined, []),
parse_att_value(Rest1, State2, Stop, ParsedValue ++ Acc);
{external_general, Name, _} ->
?fatal_error(State1, "External parsed entity reference in attribute value: " ++ Name);
{not_found, Name} ->
case State#xmerl_sax_parser_state.skip_external_dtd of
false ->
?fatal_error(State1, "Entity not declared: " ++ Name); %%VC: Entity Declared
true ->
parse_att_value(Rest1, State1, Stop, ";" ++ lists:reverse(Name) ++ "&" ++ Acc)
end;
{unparsed, Name, _} ->
?fatal_error(State1, "Unparsed entity reference in attribute value: " ++ Name)
end;
parse_att_value(?STRING_UNBOUND_REST(Stop, Rest), State, Stop, Acc) ->
{lists:reverse(Acc), Rest, State};
parse_att_value(?STRING_UNBOUND_REST($<, _Rest), State, _Stop, _Acc) ->
?fatal_error(State, "< not allowed in attribute value");
parse_att_value(?STRING_UNBOUND_REST(C, Rest), State, Stop, Acc) ->
if
?is_char(C) ->
parse_att_value(Rest, State, Stop, [C|Acc]);
true ->
?fatal_error(State, lists:flatten(io_lib:format("Bad character in attribute value: ~p", [C])))
end;
parse_att_value(Bytes, State, Stop, Acc) ->
unicode_incomplete_check([Bytes, State, Stop, Acc, fun parse_att_value/4],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_etag(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse the end tag
%% [42] ETag ::= '</' Name S? '>'
%%----------------------------------------------------------------------
parse_etag(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_etag/2);
parse_etag(?STRING_UNBOUND_REST(C, Rest),
#xmerl_sax_parser_state{end_tags=[{ETag, _Uri, _LocalName, _QName, _OldNsList, _NewNsList}
|_RestOfETags]} = State) ->
case is_name_start(C) of
true ->
{Tag, Rest1, State1} = parse_ns_name(Rest, State, [], [C]),
case Tag == ETag of
true ->
{_WS, Rest2, State2} = whitespace(Rest1, State1, []),
parse_etag_1(Rest2, State2, Tag);
false ->
case State1#xmerl_sax_parser_state.match_end_tags of
true ->
{P,TN} = Tag,
?fatal_error(State1, "EndTag: " ++ P ++ ":" ++ TN ++
", does not match StartTag");
false ->
{_WS, Rest2, State2} = whitespace(Rest1, State1, []),
parse_etag_1(Rest2, State2, Tag)
end
end;
false ->
?fatal_error(State, "Name expected")
end;
parse_etag(?STRING_UNBOUND_REST(_C, _) = Rest, #xmerl_sax_parser_state{end_tags=[]}= State) ->
{Rest, State};
parse_etag(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_etag/2],
undefined).
parse_etag_1(?STRING_REST(">", Rest),
#xmerl_sax_parser_state{end_tags=[{_ETag, Uri, LocalName, QName, OldNsList, NewNsList}
|RestOfETags],
input_type=InputType} = State, _Tag) ->
State1 = event_callback({endElement, Uri, LocalName, QName}, State),
State2 = send_end_prefix_mapping_event(NewNsList, State1),
case check_if_new_doc_allowed(InputType, RestOfETags) of
true ->
throw({endDocument, Rest, State2#xmerl_sax_parser_state{ns = OldNsList}});
false ->
parse_content(Rest,
State2#xmerl_sax_parser_state{end_tags=RestOfETags,
ns = OldNsList},
[], true)
end;
parse_etag_1(?STRING_UNBOUND_REST(_C, _), State, Tag) ->
{P,TN} = Tag,
?fatal_error(State, "Bad EndTag: " ++ P ++ ":" ++ TN);
parse_etag_1(Bytes, State, Tag) ->
unicode_incomplete_check([Bytes, State, Tag, fun parse_etag_1/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_content(Rest, State, Acc, IgnorableWS) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% IgnorableWS = true | false
%% Result : {Rest, State}
%% Description: Parsing the content part of tags
%% [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*
%%----------------------------------------------------------------------
parse_content(?STRING_EMPTY, State, Acc, IgnorableWS) ->
case check_if_document_complete(State, "No more bytes") of
true ->
State1 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State),
{?STRING_EMPTY, State1};
false ->
case catch cf(?STRING_EMPTY, State, Acc, IgnorableWS, fun parse_content/4) of
{Rest, State1} when is_record(State1, xmerl_sax_parser_state) ->
{Rest, State1};
{fatal_error, {State1, Msg}} ->
case check_if_document_complete(State1, Msg) of
true ->
State2 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State1),
{?STRING_EMPTY, State2};
false ->
?fatal_error(State1, Msg)
end;
Other ->
throw(Other)
end
end;
parse_content(?STRING("\r") = Bytes, State, Acc, IgnorableWS) ->
cf(Bytes, State, Acc, IgnorableWS, fun parse_content/4);
parse_content(?STRING("<") = Bytes, State, Acc, IgnorableWS) ->
cf(Bytes, State, Acc, IgnorableWS, fun parse_content/4);
parse_content(?STRING_REST("</", Rest), State, Acc, IgnorableWS) ->
State1 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State),
parse_etag(Rest, State1);
parse_content(?STRING("<!") = Bytes, State, _Acc, IgnorableWS) ->
cf(Bytes, State, [], IgnorableWS, fun parse_content/4);
parse_content(?STRING("<!-") = Bytes, State, _Acc, IgnorableWS) ->
cf(Bytes, State, [], IgnorableWS, fun parse_content/4);
parse_content(?STRING_REST("<!--", Rest), State, Acc, IgnorableWS) ->
State1 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State),
{Rest1, State2} = parse_comment(Rest, State1, []),
parse_content(Rest1, State2, [], true);
parse_content(?STRING_REST("<?", Rest), State, Acc, IgnorableWS) ->
State1 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State),
case parse_pi(Rest, State1) of
{Rest1, State2} ->
parse_content(Rest1, State2, [], true);
{endDocument, _Rest1, State2} ->
IValue = ?TO_INPUT_FORMAT("<?"),
{?APPEND_STRING(IValue, Rest), State2}
end;
parse_content(?STRING_REST("<!", Rest1) = Rest, #xmerl_sax_parser_state{end_tags = ET} = State, Acc, IgnorableWS) ->
case ET of
[] ->
{Rest, State}; %% Skicka ignorable WS ???
_ ->
State1 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State),
parse_cdata(Rest1, State1)
end;
parse_content(?STRING_REST("<", Rest1) = Rest, #xmerl_sax_parser_state{end_tags = ET} = State, Acc, IgnorableWS) ->
case ET of
[] ->
{Rest, State}; %% Skicka ignorable WS ???
_ ->
State1 = send_character_event(length(Acc), IgnorableWS, lists:reverse(Acc), State),
parse_stag(Rest1, State1)
end;
parse_content(?STRING_REST("\n", Rest), State, Acc, IgnorableWS) ->
N = State#xmerl_sax_parser_state.line_no,
parse_content(Rest, State#xmerl_sax_parser_state{line_no=N+1},[?lf |Acc], IgnorableWS);
parse_content(?STRING_REST("\r\n", Rest), State, Acc, IgnorableWS) ->
N = State#xmerl_sax_parser_state.line_no,
parse_content(Rest, State#xmerl_sax_parser_state{line_no=N+1},[?lf |Acc], IgnorableWS);
parse_content(?STRING_REST("\r", Rest), State, Acc, IgnorableWS) ->
N = State#xmerl_sax_parser_state.line_no,
parse_content(Rest, State#xmerl_sax_parser_state{line_no=N+1},[?lf |Acc], IgnorableWS);
parse_content(?STRING_REST(" ", Rest), State, Acc, IgnorableWS) ->
parse_content(Rest, State,[?space |Acc], IgnorableWS);
parse_content(?STRING_REST("\t", Rest), State, Acc, IgnorableWS) ->
parse_content(Rest, State,[?tab |Acc], IgnorableWS);
parse_content(?STRING_REST("]]>", _Rest), State, _Acc, _IgnorableWS) ->
?fatal_error(State, "\"]]>\" is not allowed in content");
parse_content(?STRING_UNBOUND_REST(_C, _) = Rest,
#xmerl_sax_parser_state{end_tags = []} = State,
_Acc, _IgnorableWS) ->
{Rest, State};
parse_content(?STRING_REST("&", Rest), State, Acc, _IgnorableWS) ->
{Ref, Rest1, State1} = parse_reference(Rest, State, true),
case Ref of
{character, _, CharValue} ->
parse_content(Rest1, State1, [CharValue | Acc], false);
{internal_general, true, _, Value} ->
parse_content(Rest1, State1, Value ++ Acc, false);
{internal_general, false, _, Value} ->
IValue = ?TO_INPUT_FORMAT(Value),
parse_content(?APPEND_STRING(IValue, Rest1), State1, Acc, false);
{external_general, _, {PubId, SysId}} ->
State2 = parse_external_entity(State1, PubId, SysId),
parse_content(Rest1, State2, Acc, false);
{not_found, Name} ->
case State#xmerl_sax_parser_state.skip_external_dtd of
false ->
?fatal_error(State1, "Entity not declared: " ++ Name); %%VC: Entity Declared
true ->
parse_content(Rest1, State1, ";" ++ lists:reverse(Name) ++ "&" ++ Acc, false)
end;
{unparsed, Name, _} ->
?fatal_error(State1, "Unparsed entity reference in content: " ++ Name)
end;
parse_content(?STRING_UNBOUND_REST(C, Rest), State, Acc, _IgnorableWS) ->
if
?is_char(C) ->
parse_content(Rest, State, [C|Acc], false);
true ->
?fatal_error(State, lists:flatten(io_lib:format("Bad character in content: ~p", [C])))
end;
parse_content(Bytes, State, Acc, IgnorableWS) ->
unicode_incomplete_check([Bytes, State, Acc, IgnorableWS, fun parse_content/4],
undefined).
%%----------------------------------------------------------------------
%% Function: check_if_document_complete(State, ErrorMsg) -> Result
%% Parameters: State = #xmerl_sax_parser_state{}
%% ErrorMsg = string()
%% Result : boolean()
%% Description: Checks that the document is complete if we don't have more data..
%%----------------------------------------------------------------------
check_if_document_complete(#xmerl_sax_parser_state{end_tags = []},
"No more bytes") ->
true;
check_if_document_complete(#xmerl_sax_parser_state{end_tags = []},
"Continuation function undefined") ->
true;
check_if_document_complete(_, _) ->
false.
%%----------------------------------------------------------------------
%% Function: send_character_event(Length, IgnorableWS, String, State) -> Result
%% Parameters: Length = integer()
%% IgnorableWS = true | false
%% String = string()
%% State = #xmerl_sax_parser_state{}
%% Result : #xmerl_sax_parser_state{}
%% Description: Sends the correct type of character event depending on if
%% it's whitespaces that can be ignored or not.
%%----------------------------------------------------------------------
send_character_event(0, _, _, State) ->
State;
send_character_event(_, false, String, State) ->
event_callback({characters, String}, State);
send_character_event(_, true, String, State) ->
event_callback({ignorableWhitespace, String}, State).
%%----------------------------------------------------------------------
%% Function: whitespace(Rest, State, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Rest, State}
%% Description: Parse whitespaces.
%% [3] S ::= (#x20 | #x9 | #xD | #xA)+
%%----------------------------------------------------------------------
whitespace(?STRING_EMPTY, State, Acc) ->
case cf(?STRING_EMPTY, State, Acc, fun whitespace/3) of
{?STRING_EMPTY, State} ->
{lists:reverse(Acc), ?STRING_EMPTY, State};
Ret ->
Ret
end;
whitespace(?STRING("\r") = Bytes, State, Acc) ->
case cf(Bytes, State, Acc, fun whitespace/3) of
{?STRING("\r") = Bytes, State} ->
{lists:reverse(Acc), Bytes, State};
Ret ->
Ret
end;
whitespace(?STRING_REST("\n", Rest), State, Acc) ->
N = State#xmerl_sax_parser_state.line_no,
whitespace(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
whitespace(?STRING_REST("\r\n", Rest), State, Acc) ->
N = State#xmerl_sax_parser_state.line_no,
whitespace(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
whitespace(?STRING_REST("\r", Rest), State, Acc) ->
N = State#xmerl_sax_parser_state.line_no,
whitespace(Rest, State#xmerl_sax_parser_state{line_no=N+1}, [?lf |Acc]);
whitespace(?STRING_UNBOUND_REST(C, Rest), State, Acc) when ?is_whitespace(C) ->
whitespace(Rest, State, [C|Acc]);
?WHITESPACE(Bytes, State, Acc).
%%----------------------------------------------------------------------
%% Function: parse_reference(Rest, State, HaveToExist) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Value, Rest, State}
%% Description: Parse entity references.
%% [66] CharRef ::= '&#' [0-9]+ ';'
%% | '&#x' [0-9a-fA-F]+ ';'
%% [67] Reference ::= EntityRef | CharRef
%% [68] EntityRef ::= '&' Name ';'
%%----------------------------------------------------------------------
parse_reference(?STRING_EMPTY, State, HaveToExist) ->
cf(?STRING_EMPTY, State, HaveToExist, fun parse_reference/3);
parse_reference(?STRING("#") = Bytes, State, HaveToExist) ->
cf(Bytes, State, HaveToExist, fun parse_reference/3);
parse_reference(?STRING_REST("#x", Rest), State, _HaveToExist) ->
{CharValue, RefString, Rest1, State1} = parse_hex(Rest, State, []),
if
?is_char(CharValue) ->
{{character, is_delimiter(CharValue), CharValue},
Rest1, State1};
true ->
?fatal_error(State1, "Not a legal character: #x" ++ RefString) %%WFC: Legal Character
end;
parse_reference(?STRING_REST("#", Rest), State, _HaveToExist) ->
{CharValue, RefString, Rest1, State1} = parse_digit(Rest, State, []),
if
?is_char(CharValue) ->
{{character, is_delimiter(CharValue), CharValue},
Rest1, State1};
true ->
?fatal_error(State1, "Not a legal character: #" ++ RefString)%%WFC: Legal Character
end;
parse_reference(?STRING_UNBOUND_REST(C, Rest), State, HaveToExist) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
parse_reference_1(Rest1, State1, HaveToExist, Name);
false ->
?fatal_error(State, "name expected")
end;
parse_reference(Bytes, State, HaveToExist) ->
unicode_incomplete_check([Bytes, State, HaveToExist, fun parse_reference/3],
underfined).
parse_reference_1(?STRING_REST(";", Rest), State, HaveToExist, Name) ->
case look_up_reference(Name, HaveToExist, State) of
{internal_general, Name, RefValue} ->
{{internal_general, is_delimiter(RefValue), Name, RefValue},
Rest, State};
Result ->
{Result, Rest, State}
end;
parse_reference_1(Bytes, State, HaveToExist, Name) ->
unicode_incomplete_check([Bytes, State, HaveToExist, Name, fun parse_reference_1/4],
"Missing semicolon after reference: " ++ Name).
%%----------------------------------------------------------------------
%% Function: is_delimiter(Character) -> Result
%% Parameters: Character
%% Result :
%%----------------------------------------------------------------------
is_delimiter(38) ->
true;
is_delimiter(60) ->
true;
is_delimiter(62) ->
true;
is_delimiter(39) ->
true;
is_delimiter(34) ->
true;
is_delimiter("&") ->
true;
is_delimiter("<") ->
true;
is_delimiter(">") ->
true;
is_delimiter("'") ->
true;
is_delimiter("\"") ->
true;
is_delimiter(_) ->
false.
%%----------------------------------------------------------------------
%% Function: parse_pe_reference(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Result, Rest, State}
%% Description: Parse a parameter entity reference.
%% [69] PEReference ::= '%' Name ';'
%%----------------------------------------------------------------------
parse_pe_reference(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_pe_reference/2);
parse_pe_reference(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
parse_pe_reference_1(Rest1, State1, Name);
false ->
?fatal_error(State, "Name expected")
end;
parse_pe_reference(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_pe_reference/2],
underfined).
parse_pe_reference_1(?STRING_REST(";", Rest), State, Name) ->
Name1 = "%" ++ Name,
Result = look_up_reference(Name1, true, State),
{Result, Rest, State};
parse_pe_reference_1(Bytes, State, Name) ->
unicode_incomplete_check([Bytes, State, Name, fun parse_pe_reference_1/3],
"missing ; after reference " ++ Name).
%%----------------------------------------------------------------------
%% Function: insert_reference(Reference, State) -> Result
%% Parameters: Reference = string()
%% State = #xmerl_sax_parser_state{}
%% Result :
%%----------------------------------------------------------------------
insert_reference({Name, Type, Value}, Table) ->
case ets:lookup(Table, Name) of
[{Name, _, _}] ->
ok;
_ ->
ets:insert(Table, {Name, Type, Value})
end.
%%----------------------------------------------------------------------
%% Function: look_up_reference(Reference, State) -> Result
%% Parameters: Reference = string()
%% State = #xmerl_sax_parser_state{}
%% Result :
%%----------------------------------------------------------------------
look_up_reference("amp", _, _) ->
{internal_general, "amp", "&"};
look_up_reference("lt", _, _) ->
{internal_general, "lt", "<"};
look_up_reference("gt", _, _) ->
{internal_general, "gt", ">"};
look_up_reference("apos", _, _) ->
{internal_general, "apos", "'"};
look_up_reference("quot", _, _) ->
{internal_general, "quot", "\""};
look_up_reference(Name, HaveToExist, State) ->
case ets:lookup(State#xmerl_sax_parser_state.ref_table, Name) of
[{Name, Type, Value}] ->
{Type, Name, Value};
_ ->
case HaveToExist of
true ->
case State#xmerl_sax_parser_state.standalone of
yes ->
?fatal_error(State, "Entity not declared: " ++ Name); %%WFC: Entity Declared
no ->
{not_found, Name} %%VC: Entity Declared
end;
false ->
{not_found, Name}
end
end.
%%----------------------------------------------------------------------
%% Function: parse_hex(Rest, State, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Value, Reference, Rest, State}
%% Value = integer()
%% Reference = string()
%% Description: Parse a hex reference.
%%----------------------------------------------------------------------
parse_hex(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_hex/3);
parse_hex(?STRING_REST(";", Rest), State, Acc) ->
RefString = lists:reverse(Acc),
{erlang:list_to_integer(RefString, 16), RefString, Rest, State};
parse_hex(?STRING_UNBOUND_REST(C, Rest), State, Acc) when ?is_hex_digit(C) ->
parse_hex(Rest, State, [C |Acc]);
parse_hex(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_hex/3],
"Bad hex value in reference: ").
%%----------------------------------------------------------------------
%% Function: parse_digit(Rest, State, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Value, Reference, Rest, State}
%% Value = integer()
%% Reference = string()
%% Description: Parse a decimal reference.
%%----------------------------------------------------------------------
parse_digit(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_digit/3);
parse_digit(?STRING_REST(";", Rest), State, Acc) ->
RefString = lists:reverse(Acc),
{list_to_integer(RefString), RefString, Rest, State};
parse_digit(?STRING_UNBOUND_REST(C, Rest), State, Acc) ->
case is_digit(C) of
true ->
parse_digit(Rest, State, [C |Acc]);
false ->
?fatal_error(State, "Character in reference not a digit: " ++ [C])
end;
parse_digit(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_digit/3],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_system_litteral(Rest, State, Stop, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Stop = $' | $"
%% Acc = string()
%% Result : {Value, Reference, Rest, State}
%% Value = integer()
%% Reference = string()
%% Description: Parse a system litteral.
%% [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'")
%%----------------------------------------------------------------------
parse_system_litteral(?STRING_EMPTY, State, Stop, Acc) ->
cf(?STRING_EMPTY, State, Stop, Acc, fun parse_system_litteral/4);
parse_system_litteral(?STRING_UNBOUND_REST(Stop, Rest), State, Stop, Acc) ->
{lists:reverse(Acc), Rest, State};
parse_system_litteral(?STRING_UNBOUND_REST(C, Rest), State, Stop, Acc) ->
parse_system_litteral(Rest, State, Stop, [C |Acc]);
parse_system_litteral(Bytes, State, Stop, Acc) ->
unicode_incomplete_check([Bytes, State, Stop, Acc, fun parse_system_litteral/4],
undefined).
%%----------------------------------------------------------------------
%% Function: parse_pubid_litteral(Rest, State, Stop, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Stop = $' | $"
%% Acc = string()
%% Result : {Value, Reference, Rest, State}
%% Value = integer()
%% Reference = string()
%% Description: Parse a public idlitteral.
%% [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"
%%----------------------------------------------------------------------
parse_pubid_litteral(?STRING_EMPTY, State, Stop, Acc) ->
cf(?STRING_EMPTY, State, Stop, Acc, fun parse_pubid_litteral/4);
parse_pubid_litteral(?STRING_UNBOUND_REST(Stop, Rest), State, Stop, Acc) ->
{lists:reverse(Acc), Rest, State};
parse_pubid_litteral(?STRING_UNBOUND_REST(C, Rest), State, Stop, Acc) ->
case is_pubid_char(C) of
true ->
parse_pubid_litteral(Rest, State, Stop, [C |Acc]);
false ->
?fatal_error(State, "Character not allowed in pubid litteral: " ++ [C])
end;
parse_pubid_litteral(Bytes, State, Stop, Acc) ->
unicode_incomplete_check([Bytes, State, Stop, Acc, fun parse_pubid_litteral/4],
undefined).
%%======================================================================
%% DTD Parsing
%%======================================================================
%%----------------------------------------------------------------------
%% Function : parse_doctype(Rest, State, Level, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Level = integer()
%% Acc = string()
%% Result : {string(), Rest, State}
%% Description: This function is just searching the end of the doctype
%% declaration and doesn't parse it. It's used when the
%% parse_dtd option is set to skip.
%%----------------------------------------------------------------------
%% Just returns doctype as string
%% parse_doctype(?STRING_EMPTY, State, Level, Acc) ->
%% cf(?STRING_EMPTY, State, Level, Acc, fun parse_doctype/4);
%% parse_doctype(?STRING("\r"), State, Level, Acc) ->
%% cf(?STRING("\r"), State, Level, Acc, fun parse_doctype/4);
%% parse_doctype(?STRING_REST(">", Rest), State, 0, Acc) ->
%% {Acc, Rest, State};
%% parse_doctype(?STRING_REST(">", Rest), State, Level, Acc) ->
%% parse_doctype(Rest, State, Level-1, Acc);
%% parse_doctype(?STRING_REST("<", Rest), State, Level, Acc) ->
%% parse_doctype(Rest, State, Level+1, [$<|Acc]);
%% parse_doctype(?STRING_REST("\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Level, Acc) ->
%% parse_doctype(Rest, State#xmerl_sax_parser_state{line_no=N+1}, Level, [?lf |Acc]);
%% parse_doctype(?STRING_REST("\r\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Level, Acc) ->
%% parse_doctype(Rest, State#xmerl_sax_parser_state{line_no=N+1}, Level, [?lf |Acc]);
%% parse_doctype(?STRING_REST("\r", Rest), #xmerl_sax_parser_state{line_no=N} = State, Level, Acc) ->
%% parse_doctype(Rest, State#xmerl_sax_parser_state{line_no=N+1}, Level, [?lf |Acc]);
%% parse_doctype(?STRING_UNBOUND_REST(C, Rest), State, Level, Acc) ->
%% parse_doctype(Rest, State, Level, [C|Acc]);
%% parse_doctype(Bytes, State, Level, Acc) ->
%% unicode_incomplete_check([Bytes, State, Level, Acc, fun parse_doctype/4],
%% undefined).
%%----------------------------------------------------------------------
%% Function : parse_doctype(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: This function starts an parsing of the DTD
%% that sends apropriate events.
%% [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S?
%% ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
%%----------------------------------------------------------------------
parse_doctype(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_doctype/2);
parse_doctype(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_doctype(Rest, State1);
parse_doctype(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
parse_doctype_1(Rest1, State1, Name, false);
false ->
?fatal_error(State, "expecting name or whitespace")
end;
parse_doctype(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_doctype/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_doctype_1(Rest, State, Name, Definition) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Name = string()
%% Definition = true |false
%% Result : {Rest, State}
%% Description: Gets the DTD name as a parameter and contine parse the DOCTYPE
%% directive
%%----------------------------------------------------------------------
parse_doctype_1(?STRING_EMPTY, State, Name, Definition) ->
cf(?STRING_EMPTY, State, Name, Definition, fun parse_doctype_1/4);
parse_doctype_1(?STRING_REST(">", Rest), State, _, _) ->
{Rest, State};
parse_doctype_1(?STRING_REST("[", Rest), State, Name, Definition) ->
State1 =
case Definition of
false ->
event_callback({startDTD, Name, "", ""}, State);
true ->
State
end,
{Rest1, State2} = parse_doctype_decl(Rest, State1),
{_WS, Rest2, State3} = whitespace(Rest1, State2, []),
parse_doctype_2(Rest2, State3);
parse_doctype_1(?STRING_UNBOUND_REST(C, _) = Rest, State, Name, Definition) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_doctype_1(Rest1, State1, Name, Definition);
parse_doctype_1(?STRING_UNBOUND_REST(C, _) = Rest, State, Name, _Definition) when C == $S; C == $P ->
{PubId, SysId, Rest1, State1} = parse_external_id(Rest, State, false),
State2 = event_callback({startDTD, Name, PubId, SysId}, State1),
State3 =
case State2#xmerl_sax_parser_state.skip_external_dtd of
false ->
parse_external_entity(State2#xmerl_sax_parser_state{file_type=dtd}, PubId, SysId);
true ->
State2
end,
parse_doctype_1(Rest1, State3, Name, true);
parse_doctype_1(Bytes, State, Name, Definition) ->
unicode_incomplete_check([Bytes, State, Name, Definition, fun parse_doctype_1/4],
"expecting >, external id or declaration part").
parse_doctype_2(?STRING_REST(">", Rest), State) ->
{Rest, State};
parse_doctype_2(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_doctype_2/2],
"expecting >").
%%----------------------------------------------------------------------
%% Function : parse_external_entity(State, PubId, SysId) -> Result
%% Parameters: State = #xmerl_sax_parser_state{}
%% PubId = string()
%% SysId = string()
%% Result : {Rest, State}
%% Description: Starts the parsing of an external entity by calling the resolver and
%% then sends the input to the parsing function.
%%----------------------------------------------------------------------
%% The public id is not handled
parse_external_entity(State, _PubId, SysId) ->
ExtRef = check_uri(SysId, State#xmerl_sax_parser_state.current_location),
SaveState = event_callback({startEntity, SysId}, State),
State1 = State#xmerl_sax_parser_state{line_no=1,
continuation_state=undefined,
continuation_fun=fun xmerl_sax_parser:default_continuation_cb/1,
end_tags = []},
EventState = handle_external_entity(ExtRef, State1),
NewState = event_callback({endEntity, SysId}, SaveState#xmerl_sax_parser_state{event_state=EventState}),
NewState#xmerl_sax_parser_state{file_type=normal}.
%%----------------------------------------------------------------------
%% Function : handle_external_entity(ExtRef, State) -> Result
%% Parameters: ExtRef = {file, string()} | {http, string()}
%% State = #xmerl_sax_parser_state{}
%% Result : string() | binary()
%% Description: Returns working directory, entity and the opened
%% filedescriptor.
%%----------------------------------------------------------------------
handle_external_entity({file, FileToOpen}, State) ->
case file:open(FileToOpen, [raw, read, binary]) of
{error, Reason} ->
?fatal_error(State, "Couldn't open external entity "++ FileToOpen ++ " : "
++ file:format_error(Reason));
{ok, FD} ->
{?STRING_EMPTY, EntityState} =
parse_external_entity_1(<<>>,
State#xmerl_sax_parser_state{continuation_state=FD,
current_location=filename:dirname(FileToOpen),
entity=filename:basename(FileToOpen),
input_type=file}),
ok = file:close(FD),
EntityState#xmerl_sax_parser_state.event_state
end;
handle_external_entity({http, Url}, State) ->
try
{Host, Port, Key} = http(Url),
TmpFile = http_get_file(Host, Port, Key),
case file:open(TmpFile, [raw, read, binary]) of
{error, Reason} ->
?fatal_error(State, "Couldn't open temporary file " ++ TmpFile ++ " : "
++ file:format_error(Reason));
{ok, FD} ->
{?STRING_EMPTY, EntityState} =
parse_external_entity_byte_order_mark(<<>>,
State#xmerl_sax_parser_state{continuation_state=FD,
current_location=filename:dirname(Url),
entity=filename:basename(Url),
input_type=file}),
ok = file:close(FD),
ok = file:delete(TmpFile),
EntityState#xmerl_sax_parser_state.event_state
end
catch
throw:{error, Error} ->
?fatal_error(State, Error)
end;
handle_external_entity({Tag, _Url}, State) ->
?fatal_error(State, "Unsupported URI type: " ++ atom_to_list(Tag)).
?PARSE_EXTERNAL_ENTITY_BYTE_ORDER_MARK(Bytes, State).
%%----------------------------------------------------------------------
%% Function : parse_external_entity_1(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse the external entity.
%%----------------------------------------------------------------------
parse_external_entity_1(?STRING_EMPTY, #xmerl_sax_parser_state{file_type=Type} = State) ->
case catch cf(?STRING_EMPTY, State, fun parse_external_entity_1/2) of
{Rest, State1} when is_record(State1, xmerl_sax_parser_state) ->
{Rest, State};
{fatal_error, {State1, "No more bytes"}} when Type == dtd; Type == entity ->
{?STRING_EMPTY, State1};
Other ->
throw(Other)
end;
parse_external_entity_1(?STRING("<") = Bytes, State) ->
cf(Bytes, State, fun parse_external_entity_1/2);
parse_external_entity_1(?STRING("<?") = Bytes, State) ->
cf(Bytes, State, fun parse_external_entity_1/2);
parse_external_entity_1(?STRING("<?x") = Bytes, State) ->
cf(Bytes, State, fun parse_external_entity_1/2);
parse_external_entity_1(?STRING("<?xm") = Bytes, State) ->
cf(Bytes, State, fun parse_external_entity_1/2);
parse_external_entity_1(?STRING("<?xml") = Bytes, State) ->
cf(Bytes, State, fun parse_external_entity_1/2);
parse_external_entity_1(?STRING_REST("<?xml", Rest) = Bytes,
#xmerl_sax_parser_state{file_type=Type} = State) ->
{Rest1, State1} =
case is_next_char_whitespace(Rest, State) of
false ->
{Bytes, State};
true ->
{_XmlAttributes, R, S} = parse_version_info(Rest, State, []),
%S1 = event_callback({processingInstruction, "xml", XmlAttributes}, S),% The XML decl. should not be reported as a PI
{R, S}
end,
case Type of
dtd ->
case catch parse_doctype_decl(Rest1, State1) of
{Rest2, State2} when is_record(State2, xmerl_sax_parser_state) ->
{Rest2, State2};
{fatal_error, {State2, "No more bytes"}} ->
{?STRING_EMPTY, State2};
Other ->
throw(Other)
end;
_ -> % Type is normal or entity
parse_content(Rest1, State1, [], true)
end;
parse_external_entity_1(?STRING_UNBOUND_REST(_C, _) = Bytes,
#xmerl_sax_parser_state{file_type=Type} = State) ->
case Type of
normal ->
parse_content(Bytes, State, [], true);
dtd ->
parse_doctype_decl(Bytes, State);
entity ->
parse_doctype_decl(Bytes, State) end;
parse_external_entity_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_external_entity_1/2],
undefined).
%%----------------------------------------------------------------------
%% Function : is_next_char_whitespace(Bytes, State) -> Result
%% Parameters: Bytes = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : true | false
%% Description: Checks if first character is whitespace.
%%----------------------------------------------------------------------
is_next_char_whitespace(?STRING_UNBOUND_REST(C, _), _) when ?is_whitespace(C) ->
true;
is_next_char_whitespace(?STRING_UNBOUND_REST(_C, _), _) ->
false;
is_next_char_whitespace(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun is_next_char_whitespace/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_external_id(Rest, State, OptionalSystemId) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% OptionalSystemId = true | false
%% Result : {PubId, SysId, Rest, State}
%% PubId = string()
%% SysId = string()
%% Description: Parse an external id. The function is used in two cases one
%% where the system is optional and one where it's required
%% after a public id.
%% [75] ExternalID ::= 'SYSTEM' S SystemLiteral
%% | 'PUBLIC' S PubidLiteral S SystemLiteral
%%----------------------------------------------------------------------
parse_external_id(?STRING_EMPTY, State, OptionalSystemId) ->
cf(?STRING_EMPTY, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("S") = Bytes, State,OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("SY") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("SYS") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("SYST") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("SYSTE") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING_REST("SYSTEM", Rest), State, _) ->
{SysId, Rest1, State1} = parse_system_id(Rest, State, false),
{"", SysId, Rest1, State1};
parse_external_id(?STRING("P") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("PU") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("PUB") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("PUBL") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING("PUBLI") = Bytes, State, OptionalSystemId) ->
cf(Bytes, State, OptionalSystemId, fun parse_external_id/3);
parse_external_id(?STRING_REST("PUBLIC", Rest), State, OptionalSystemId) ->
parse_public_id(Rest, State, OptionalSystemId);
parse_external_id(Bytes, State, OptionalSystemId) ->
unicode_incomplete_check([Bytes, State, OptionalSystemId, fun parse_external_id/3],
"expecting SYSTEM or PUBLIC").
%%----------------------------------------------------------------------
%% Function : parse_system_id(Rest, State, OptionalSystemId) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% OptionalSystemId = true | false
%% Result : {SysId, Rest, State}
%% SysId = string()
%% Description: Parse a system id. The function is used in two cases one
%% where the system is optional and one where it's required.
%%----------------------------------------------------------------------
parse_system_id(?STRING_UNBOUND_REST(C, _) = Bytes, State, OptionalSystemId) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
check_system_litteral(Rest, State1, OptionalSystemId);
parse_system_id(?STRING_UNBOUND_REST(_C, _) = Bytes, State, true) ->
{"", Bytes, State};
parse_system_id(Bytes, State, OptionalSystemId) ->
unicode_incomplete_check([Bytes, State, OptionalSystemId, fun parse_system_id/3],
"whitespace expected").
check_system_litteral(?STRING_UNBOUND_REST(C, Rest), State, _OptionalSystemId) when C == $'; C == $" ->
parse_system_litteral(Rest, State, C, []);
check_system_litteral(?STRING_UNBOUND_REST(_C, _) = Bytes, State, true) ->
{"", Bytes, State};
check_system_litteral(Bytes, State, OptionalSystemId) ->
unicode_incomplete_check([Bytes, State, OptionalSystemId, fun check_system_litteral/3],
"\" or \' expected").
%%----------------------------------------------------------------------
%% Function : parse_public_id(Rest, State, OptionalSystemId) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% OptionalSystemId = true | false
%% Result : {PubId, SysId, Rest, State}
%% PubId = string()
%% SysId = string()
%% Description: Parse a public id. The function is used in two cases one
%% where the following system is optional and one where it's required.
%%----------------------------------------------------------------------
parse_public_id(?STRING_UNBOUND_REST(C, _) = Bytes, State, OptionalSystemId) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
check_public_litteral(Rest, State1, OptionalSystemId);
parse_public_id(Bytes, State,OptionalSystemId) ->
unicode_incomplete_check([Bytes, State, OptionalSystemId, fun parse_public_id/3],
"whitespace expected").
check_public_litteral(?STRING_UNBOUND_REST(C, Rest), State, OptionalSystemId) when C == $'; C == $" ->
{PubId, Rest1, State1} = parse_pubid_litteral(Rest, State, C, []),
{SysId, Rest2, State2} = parse_system_id(Rest1, State1, OptionalSystemId),
{PubId, SysId, Rest2, State2};
check_public_litteral(Bytes, State, OptionalSystemId) ->
unicode_incomplete_check([Bytes, State, OptionalSystemId, fun check_public_litteral/3],
"\" or \' expected").
%%----------------------------------------------------------------------
%% Function : parse_doctype_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse the DOCTYPE declaration part
%% [29] markupdecl ::= elementdecl | AttlistDecl | EntityDecl
%% | NotationDecl | PI | Comment
%%----------------------------------------------------------------------
parse_doctype_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_doctype_decl/2);
parse_doctype_decl(?STRING("<"), State) ->
cf(?STRING("<"), State, fun parse_doctype_decl/2);
parse_doctype_decl(?STRING_REST("<?", Rest), State) ->
case parse_pi(Rest, State) of
{Rest1, State1} ->
parse_doctype_decl(Rest1, State1);
{endDocument, _Rest1, State1} ->
IValue = ?TO_INPUT_FORMAT("<?"),
{?APPEND_STRING(IValue, Rest), State1}
end;
parse_doctype_decl(?STRING_REST("%", Rest), State) ->
{Ref, Rest1, State1} = parse_pe_reference(Rest, State),
case Ref of
{internal_parameter, _, RefValue} ->
IValue = ?TO_INPUT_FORMAT(" " ++ RefValue ++ " "),
parse_doctype_decl(?APPEND_STRING(IValue, Rest1), State1);
{external_parameter, _, {PubId, SysId}} ->
State2 = parse_external_entity(State1#xmerl_sax_parser_state{file_type = entity}, PubId, SysId),
parse_doctype_decl(Rest1, State2);
{not_found, Name} ->
case State#xmerl_sax_parser_state.skip_external_dtd of
false ->
?fatal_error(State1, "Entity not declared: " ++ Name); %%WFC: Entity Declared
true ->
parse_doctype_decl(Rest1, State1)
end
end;
parse_doctype_decl(?STRING_REST("<!", Rest1), State) ->
parse_doctype_decl_1(Rest1, State);
parse_doctype_decl(?STRING_REST("]", Rest), State) ->
{Rest, State};
parse_doctype_decl(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_doctype_decl(Rest, State1);
parse_doctype_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_doctype_decl/2],
"expecting ELEMENT, ATTLIST, ENTITY, NOTATION or comment").
%%----------------------------------------------------------------------
%% Function : parse_doctype_decl_1(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Main switching function for the different markup declarations
%% of the DOCTYPE.
%%----------------------------------------------------------------------
parse_doctype_decl_1(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("E") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("EL") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ELE") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ELEM") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ELEME") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ELEMEN") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING_REST("ELEMENT", Rest), State) ->
{Rest1, State1} = parse_element_decl(Rest, State),
parse_doctype_decl(Rest1, State1);
parse_doctype_decl_1(?STRING("A") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("AT") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ATT") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ATTL") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ATTLI") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ATTLIS") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING_REST("ATTLIST", Rest), State) ->
{Rest1, State1} = parse_att_list_decl(Rest, State),
parse_doctype_decl(Rest1, State1);
%% E clause not needed here because already taken care of above.
parse_doctype_decl_1(?STRING("EN") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ENT") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ENTI") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("ENTIT") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING_REST("ENTITY", Rest), State) ->
{Rest1, State1} = parse_entity_decl(Rest, State),
parse_doctype_decl(Rest1, State1);
parse_doctype_decl_1(?STRING("N") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("NO") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("NOT") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("NOTA") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("NOTAT") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("NOTATI") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING("NOTATIO") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING_REST("NOTATION", Rest), State) ->
{Rest1, State1} = parse_notation_decl(Rest, State),
parse_doctype_decl(Rest1, State1);
parse_doctype_decl_1(?STRING("-") = Bytes, State) ->
cf(Bytes, State, fun parse_doctype_decl_1/2);
parse_doctype_decl_1(?STRING_REST("--", Rest), State) ->
{Rest1, State1} = parse_comment(Rest, State, []),
parse_doctype_decl(Rest1, State1);
parse_doctype_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_doctype_decl_1/2],
"expecting ELEMENT, ATTLIST, ENTITY, NOTATION or comment").
%%----------------------------------------------------------------------
%% Function : parse_element_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse element declarations.
%% [45] elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
%%----------------------------------------------------------------------
parse_element_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_element_decl/2);
parse_element_decl(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_element_decl_1(Rest, State1);
parse_element_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_element_decl/2],
"whitespace expected").
parse_element_decl_1(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
{Model, Rest2, State2} = parse_element_content(Rest1, State1),
State3 = event_callback({elementDecl, Name, Model}, State2),
{Rest2, State3};
false ->
?fatal_error(State, "name expected")
end;
parse_element_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_element_decl_1/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_element_content(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse contents of an element declaration.
%% [46] contentspec ::= 'EMPTY' | 'ANY' | Mixed | children
%%----------------------------------------------------------------------
parse_element_content(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_element_content/2);
parse_element_content(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_element_content_1(Rest, State1, []);
parse_element_content(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_element_content/2],
"whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_element_content_1(Rest, State, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Content, Rest, State}
%% Content = string()
%% Description: Parse contents of an element declaration.
%%----------------------------------------------------------------------
parse_element_content_1(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_element_content_1/3);
parse_element_content_1(?STRING_REST(">", Rest), State, Acc) ->
{lists:reverse(delete_leading_whitespace(Acc)), Rest, State};
parse_element_content_1(?STRING_UNBOUND_REST(C, Rest), State, Acc) ->
parse_element_content_1(Rest, State, [C|Acc]);
parse_element_content_1(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_element_content_1/3],
undefined).
delete_leading_whitespace([C |Acc]) when ?is_whitespace(C)->
delete_leading_whitespace(Acc);
delete_leading_whitespace(Acc) ->
Acc.
%%----------------------------------------------------------------------
%% Function : parse_att_list_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse an attribute list declaration.
%% [52] AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
%%----------------------------------------------------------------------
parse_att_list_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_att_list_decl/2);
parse_att_list_decl(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_att_list_decl_1(Rest, State1);
parse_att_list_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_att_list_decl/2],
"whitespace expected").
parse_att_list_decl_1(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{ElementName, Rest1, State1} = parse_name(Rest, State, [C]),
parse_att_defs(Rest1, State1, ElementName);
false ->
?fatal_error(State, "name expected")
end;
parse_att_list_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_att_list_decl_1/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_att_defs(Rest, State, ElementName) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% ElementName = string()
%% Result : {Rest, State}
%% Description: Parse an attribute definition.
%% [53] AttDef ::= S Name S AttType S DefaultDecl
%%----------------------------------------------------------------------
parse_att_defs(?STRING_EMPTY, State, ElementName) ->
cf(?STRING_EMPTY, State, ElementName, fun parse_att_defs/3);
parse_att_defs(?STRING_REST(">", Rest), State, _ElementName) ->
{Rest, State};
parse_att_defs(?STRING_UNBOUND_REST(C, _) = Rest, State, ElementName) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_att_defs(Rest1, State1, ElementName);
parse_att_defs(?STRING_UNBOUND_REST(C, Rest), State, ElementName) ->
case is_name_start(C) of
true ->
{AttrName, Rest1, State1} = parse_name(Rest, State, [C]),
{Type, Rest2, State2} = parse_att_type(Rest1, State1),
{Mode, Value, Rest3, State3} = parse_default_decl(Rest2, State2),
State4 = event_callback({attributeDecl, ElementName, AttrName, Type, Mode, Value}, State3),
parse_att_defs(Rest3, State4, ElementName);
false ->
?fatal_error(State, "whitespace or name expected")
end;
parse_att_defs(Bytes, State, ElementName) ->
unicode_incomplete_check([Bytes, State, ElementName, fun parse_att_defs/3],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_att_type(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Type, Rest, State}
%% Type = string()
%% Description: Parse an attribute type.
%% [54] AttType ::= StringType | TokenizedType | EnumeratedType
%% [55] StringType ::= 'CDATA'
%% [56] TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY'
%% | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS'
%% [57] EnumeratedType ::= NotationType | Enumeration
%% [58] NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')'
%% [59] Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')'
%%----------------------------------------------------------------------
parse_att_type(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_att_type/2);
parse_att_type(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
case parse_att_type_1(Rest, State1, []) of
{Type, Rest1, State2} when Type == "("; Type == "NOTATION" ->
{T, Rest2, State3} = parse_until_right_paren(Rest1, State2, []),
{Type ++ T, Rest2, State3};
{Type, Rest1, State2} ->
case check_att_type(Type) of
true ->
{Type, Rest1, State2};
false ->
?fatal_error(State2, "wrong attribute type")
end
end;
parse_att_type(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_att_type/2],
"whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_att_type_1(Rest, State, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Type, Rest, State}
%% Type = string()
%% Description: Parse an attribute type.
%%----------------------------------------------------------------------
parse_att_type_1(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_att_type_1/3);
parse_att_type_1(?STRING_UNBOUND_REST(C, _) = Bytes, State, Acc) when ?is_whitespace(C) ->
{lists:reverse(Acc), Bytes, State};
parse_att_type_1(?STRING_REST("(", Rest), State, []) ->
{"(", Rest, State};
parse_att_type_1(?STRING_UNBOUND_REST(C, Rest), State, Acc) ->
parse_att_type_1(Rest, State, [C|Acc]);
parse_att_type_1(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_att_type_1/3],
undefined).
%%----------------------------------------------------------------------
%% Function : check_att_type(Type) -> Result
%% Parameters: Type = string()
%% Result : true | false
%% Description:Check if an attribute type is valid.
%%----------------------------------------------------------------------
check_att_type("CDATA") ->
true;
check_att_type("ID") ->
true;
check_att_type("IDREF") ->
true;
check_att_type("IDREFS") ->
true;
check_att_type("ENTITY") ->
true;
check_att_type("ENTITIES") ->
true;
check_att_type("NMTOKEN") ->
true;
check_att_type("NMTOKENS") ->
true;
check_att_type(_) ->
false.
%%----------------------------------------------------------------------
%% Function : parse_until_right_paren(Rest, State, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Acc = string()
%% Result : {Type, Rest, State}
%% Type = string()
%% Description: Parse an enumurated type until ')'.
%%----------------------------------------------------------------------
parse_until_right_paren(?STRING_EMPTY, State, Acc) ->
cf(?STRING_EMPTY, State, Acc, fun parse_until_right_paren/3);
parse_until_right_paren(?STRING_REST(")", Rest), State, Acc) ->
{lists:reverse(")" ++ Acc), Rest, State};
parse_until_right_paren(?STRING_UNBOUND_REST(C, Rest), State, Acc) ->
parse_until_right_paren(Rest, State, [C|Acc]);
parse_until_right_paren(Bytes, State, Acc) ->
unicode_incomplete_check([Bytes, State, Acc, fun parse_until_right_paren/3],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_default_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Default, Rest, State}
%% Default = string()
%% Description: Parse a default declaration.
%% [60] DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue)
%%----------------------------------------------------------------------
parse_default_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_default_decl/2);
parse_default_decl(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_default_decl_1(Rest, State1);
parse_default_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_default_decl/2],
"whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_default_decl_1(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Default, Rest, State}
%% Default = string()
%% Description: Parse a default declaration.
%%----------------------------------------------------------------------
parse_default_decl_1(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_default_decl_1/2);
parse_default_decl_1(?STRING_REST("#", _Rest) = Bytes, State) ->
case Bytes of
?STRING("#R") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#RE") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#REQ") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#REQU") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#REQUI") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#REQUIR") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#REQUIRE") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING_REST("#REQUIRED", Rest1) ->
{"#REQUIRED", undefined, Rest1, State};
?STRING("#I") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#IM") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#IMP") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#IMPL") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#IMPLI") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#IMPLIE") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING_REST("#IMPLIED", Rest1) ->
{"#IMPLIED", undefined, Rest1, State};
?STRING("#F") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#FI") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#FIX") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING("#FIXE") ->
cf(Bytes, State, fun parse_default_decl_1/2);
?STRING_REST("#FIXED", Rest1) ->
parse_fixed(Rest1, State);
_ ->
?fatal_error(State, "REQUIRED, IMPLIED or FIXED expected after #")
end;
parse_default_decl_1(?STRING_UNBOUND_REST(C, Rest), State) when C == $'; C == $" ->
{DefaultValue, Rest1, State1} = parse_att_value(Rest, State, C, []),
{"", DefaultValue, Rest1, State1};
parse_default_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_default_decl_1/2],
"bad default declaration").
parse_fixed(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{DefaultValue, Rest, State1} = parse_att_value(Bytes, State), % parse_att_value removes leading WS
{"#FIXED", DefaultValue, Rest, State1};
parse_fixed(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_fixed/2],
"whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_entity_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse an entity declaration.
%% [70] EntityDecl ::= GEDecl | PEDecl
%% [71] GEDecl ::= '<!ENTITY' S Name S EntityDef S? '>'
%% [72] PEDecl ::= '<!ENTITY' S '%' S Name S PEDef S? '>'
%%----------------------------------------------------------------------
parse_entity_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_entity_decl/2);
parse_entity_decl(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_entity_decl_1(Rest, State1);
parse_entity_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_entity_decl/2],
"whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_entity_decl_1(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse an entity declaration.
%%----------------------------------------------------------------------
parse_entity_decl_1(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_entity_decl_1/2);
parse_entity_decl_1(?STRING_REST("%", Rest), State) ->
case is_next_char_whitespace(Rest, State) of
true ->
{_WS, Rest1, State1} = whitespace(Rest, State, []),
parse_pe_name(Rest1, State1);
false ->
?fatal_error(State, "whitespace expected")
end;
parse_entity_decl_1(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
case is_next_char_whitespace(Rest1, State1) of
true ->
{_WS, Rest2, State2} = whitespace(Rest1, State1, []),
parse_entity_def(Rest2, State2, Name);
false ->
?fatal_error(State1, "whitespace expected")
end;
false ->
?fatal_error(State, "name or % expected")
end;
parse_entity_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_entity_decl_1/2],
undefined).
parse_pe_name(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
case is_next_char_whitespace(Rest1, State1) of
true ->
{_WS, Rest2, State2} = whitespace(Rest1, State1, []),
parse_pe_def(Rest2, State2, Name);
false ->
?fatal_error(State1, "whitespace expected")
end;
false ->
?fatal_error(State, "name expected")
end;
parse_pe_name(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_pe_name/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_entity_def(Rest, State, Name) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Name = string()
%% Result : {Rest, State}
%% Description: Parse an entity definition.
%% [73] EntityDef ::= EntityValue | (ExternalID NDataDecl?)
%%----------------------------------------------------------------------
parse_entity_def(?STRING_EMPTY, State, Name) ->
cf(?STRING_EMPTY, State, Name, fun parse_entity_def/3);
parse_entity_def(?STRING_UNBOUND_REST(C, Rest), State, Name) when C == $'; C == $" ->
{Value, Rest1, State1} = parse_entity_value(Rest, State, C, []),
insert_reference({Name, internal_general, Value}, State1#xmerl_sax_parser_state.ref_table),
State2 = event_callback({internalEntityDecl, Name, Value}, State1),
{_WS, Rest2, State3} = whitespace(Rest1, State2, []),
parse_def_end(Rest2, State3);
parse_entity_def(?STRING_UNBOUND_REST(C, _) = Rest, State, Name) when C == $S; C == $P ->
{PubId, SysId, Rest1, State1} = parse_external_id(Rest, State, false),
{Ndata, Rest2, State2} = parse_ndata(Rest1, State1),
case Ndata of
undefined ->
insert_reference({Name, external_general, {PubId, SysId}},
State2#xmerl_sax_parser_state.ref_table),
State3 = event_callback({externalEntityDecl, Name, PubId, SysId}, State2),
{Rest2, State3};
_ ->
insert_reference({Name, unparsed, {PubId, SysId, Ndata}},
State2#xmerl_sax_parser_state.ref_table),
State3 = event_callback({unparsedEntityDecl, Name, PubId, SysId, Ndata}, State2),
{Rest2, State3}
end;
parse_entity_def(Bytes, State, Name) ->
unicode_incomplete_check([Bytes, State, Name, fun parse_entity_def/3],
"\", \', SYSTEM or PUBLIC expected").
parse_def_end(?STRING_REST(">", Rest), State) ->
{Rest, State};
parse_def_end(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_def_end/2],
"> expected").
%%----------------------------------------------------------------------
%% Function : parse_ndata(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse an NDATA declaration.
%% [76] NDataDecl ::= S 'NDATA' S Name
%%----------------------------------------------------------------------
parse_ndata(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_ndata/2);
parse_ndata(?STRING_REST(">", Rest), State) ->
{undefined, Rest, State};
parse_ndata(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest1, State1} = whitespace(Bytes, State, []),
parse_ndata_decl(Rest1, State1);
parse_ndata(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_ndata/2],
"Space before NDATA or > expected").
%%----------------------------------------------------------------------
%% Function : parse_entity_value(Rest, State, Stop, Acc) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Stop = $' | $"
%% Acc = string()
%% Result : {Value, Rest, State}
%% Value = string()
%% Description: Parse an entity value
%%----------------------------------------------------------------------
parse_entity_value(?STRING_EMPTY, State, undefined, Acc) ->
{Acc, [], State}; %% stop clause when parsing references
parse_entity_value(?STRING_EMPTY, State, Stop, Acc) ->
cf(?STRING_EMPTY, State, Stop, Acc, fun parse_entity_value/4);
parse_entity_value(?STRING("\r"), State, Stop, Acc) ->
cf(?STRING("\r"), State, Stop, Acc, fun parse_entity_value/4);
parse_entity_value(?STRING_REST("\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_entity_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_entity_value(?STRING_REST("\r\n", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_entity_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_entity_value(?STRING_REST("\r", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_entity_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_entity_value(?STRING_REST("\t", Rest), #xmerl_sax_parser_state{line_no=N} = State, Stop, Acc) ->
parse_entity_value(Rest,
State#xmerl_sax_parser_state{line_no=N+1}, Stop, [?space |Acc]);
parse_entity_value(?STRING_REST("&", Rest), State, Stop, Acc) ->
{Ref, Rest1, State1} = parse_reference(Rest, State, false),
case Ref of
{character, _, CharValue} ->
parse_entity_value(Rest1, State1, Stop, [CharValue | Acc]);
{internal_general, _, Name, _} ->
parse_entity_value(Rest1, State1, Stop, ";" ++ lists:reverse(Name) ++ "&" ++ Acc);
{external_general, Name, _} ->
parse_entity_value(Rest1, State1, Stop, ";" ++ lists:reverse(Name) ++ "&" ++ Acc);
{not_found, Name} ->
parse_entity_value(Rest1, State1, Stop, ";" ++ lists:reverse(Name) ++ "&" ++ Acc);
{unparsed, Name, _} ->
?fatal_error(State1, "Unparsed entity reference in entity value: " ++ Name)
end;
parse_entity_value(?STRING_REST("%", Rest), #xmerl_sax_parser_state{file_type=Type} = State, Stop, Acc) ->
{Ref, Rest1, State1} = parse_pe_reference(Rest, State),
case Type of
normal -> %WFC: PEs in Internal Subset
{_, Name, _} = Ref,
?fatal_error(State1, "A parameter reference may not occur not within "
"markup declarations in the internal DTD subset: " ++ Name);
_ ->
case Ref of
{internal_parameter, _, RefValue} ->
IValue = ?TO_INPUT_FORMAT(" " ++ RefValue ++ " "),
parse_entity_value(?APPEND_STRING(IValue, Rest1), State1, Stop, Acc);
{external_parameter, _, {_PubId, _SysId}} ->
?fatal_error(State1, "Parameter references in entity value not supported yet.");
{not_found, Name} ->
case State#xmerl_sax_parser_state.skip_external_dtd of
false ->
?fatal_error(State1, "Entity not declared: " ++ Name); %%VC: Entity Declared
true ->
parse_entity_value(Rest1, State1, Stop, ";" ++ lists:reverse(Name) ++ "&" ++ Acc)
end
end
end;
parse_entity_value(?STRING_UNBOUND_REST(Stop, Rest), State, Stop, Acc) ->
{lists:reverse(Acc), Rest, State};
parse_entity_value(?STRING_UNBOUND_REST(C, Rest), State, Stop, Acc) ->
if
?is_char(C) ->
parse_entity_value(Rest, State, Stop, [C|Acc]);
true ->
?fatal_error(State, lists:flatten(io_lib:format("Bad character in entity value: ~p", [C])))
end;
parse_entity_value(Bytes, State, Stop, Acc) ->
unicode_incomplete_check([Bytes, State, Stop, Acc, fun parse_entity_value/4],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_ndata_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Name, Rest, State}
%% Name = string()
%% Description: Parse an NDATA declaration.
%% [76] NDataDecl ::= S 'NDATA' S Name
%%----------------------------------------------------------------------
parse_ndata_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_ndata_decl/2);
parse_ndata_decl(?STRING_REST(">", Rest), State) ->
{undefined, Rest, State};
parse_ndata_decl(?STRING("N") = Bytes, State) ->
cf(Bytes, State, fun parse_ndata_decl/2);
parse_ndata_decl(?STRING("ND") = Bytes, State) ->
cf(Bytes, State, fun parse_ndata_decl/2);
parse_ndata_decl(?STRING("NDA") = Bytes, State) ->
cf(Bytes, State, fun parse_ndata_decl/2);
parse_ndata_decl(?STRING("NDAT") = Bytes, State) ->
cf(Bytes, State, fun parse_ndata_decl/2);
parse_ndata_decl(?STRING_REST("NDATA", Rest), State) ->
parse_ndata_decl_1(Rest, State);
parse_ndata_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_ndata_decl/2],
"NDATA or > expected").
parse_ndata_decl_1(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_ndecl_name(Rest, State1);
parse_ndata_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_ndata_decl/2],
"whitespace expected").
parse_ndecl_name(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
{_WS, Rest2, State2} = whitespace(Rest1, State1, []),
{Rest3, State3} = parse_def_end(Rest2, State2),
{Name, Rest3, State3};
false ->
?fatal_error(State, "name expected")
end;
parse_ndecl_name(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_ndecl_name/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_pe_def(Rest, State, Name) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Name = string()
%% Result : {Rest, State}
%% Description: Parse an parameter entity definition.
%% [74] PEDef ::= EntityValue | ExternalID
%%----------------------------------------------------------------------
parse_pe_def(?STRING_EMPTY, State, Name) ->
cf(?STRING_EMPTY, State, Name, fun parse_pe_def/3);
parse_pe_def(?STRING_UNBOUND_REST(C, Rest), State, Name) when C == $'; C == $" ->
{Value, Rest1, State1} = parse_entity_value(Rest, State, C, []),
Name1 = "%" ++ Name,
insert_reference({Name1, internal_parameter, Value},
State1#xmerl_sax_parser_state.ref_table),
State2 = event_callback({internalEntityDecl, Name1, Value}, State1),
{_WS, Rest2, State3} = whitespace(Rest1, State2, []),
parse_def_end(Rest2, State3);
parse_pe_def(?STRING_UNBOUND_REST(C, _) = Bytes, State, Name) when C == $S; C == $P ->
{PubId, SysId, Rest1, State1} = parse_external_id(Bytes, State, false),
Name1 = "%" ++ Name,
insert_reference({Name1, external_parameter, {PubId, SysId}},
State1#xmerl_sax_parser_state.ref_table),
State2 = event_callback({externalEntityDecl, Name1, PubId, SysId}, State1),
{_WS, Rest2, State3} = whitespace(Rest1, State2, []),
parse_def_end(Rest2, State3);
parse_pe_def(Bytes, State, Name) ->
unicode_incomplete_check([Bytes, State, Name, fun parse_pe_def/3],
"\", \', SYSTEM or PUBLIC expected").
%%----------------------------------------------------------------------
%% Function : parse_notation_decl(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {Rest, State}
%% Description: Parse a NOTATION declaration.
%% [82] NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'
%%----------------------------------------------------------------------
parse_notation_decl(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_notation_decl/2);
parse_notation_decl(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_notation_decl_1(Rest, State1);
parse_notation_decl(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_notation_decl/2],
"whitespace expected").
parse_notation_decl_1(?STRING_UNBOUND_REST(C, Rest), State) ->
case is_name_start(C) of
true ->
{Name, Rest1, State1} = parse_name(Rest, State, [C]),
{PubId, SysId, Rest2, State2} = parse_notation_id(Rest1, State1),
State3 = event_callback({notationDecl, Name, PubId, SysId}, State2),
{Rest2, State3};
false ->
?fatal_error(State, "name expected")
end;
parse_notation_decl_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_notation_decl_1/2],
undefined).
%%----------------------------------------------------------------------
%% Function : parse_notation_id(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {PubId, SysId, Rest, State}
%% PubId = string()
%% SysId = string()
%% Description: Parse a NOTATION identity. The public id case is a special
%% variant of extenal id where just the public part is allowed.
%% This is allowed if the third parameter in parse_external_id/3
%% is true.
%% [83] PublicID ::= 'PUBLIC' S PubidLiteral
%%----------------------------------------------------------------------
parse_notation_id(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_notation_id/2);
%parse_notation_id(?STRING_REST(">", Rest), State) ->
% {"", "", Rest, State};
parse_notation_id(?STRING_UNBOUND_REST(C, _) = Bytes, State) when ?is_whitespace(C) ->
{_WS, Rest, State1} = whitespace(Bytes, State, []),
parse_notation_id_1(Rest, State1);
parse_notation_id(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_notation_id/2],
"whitespace expected").
%%----------------------------------------------------------------------
%% Function : parse_notation_id_1(Rest, State) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% Result : {PubId, SysId, Rest, State}
%% PubId = string()
%% SysId = string()
%% Description: Parse a NOTATION identity.
%%----------------------------------------------------------------------
parse_notation_id_1(?STRING_EMPTY, State) ->
cf(?STRING_EMPTY, State, fun parse_notation_id_1/2);
parse_notation_id_1(?STRING_UNBOUND_REST(C, _) = Bytes, State) when C == $S; C == $P ->
{PubId, SysId, Rest1, State1} = parse_external_id(Bytes, State, true),
{_WS, Rest2, State2} = whitespace(Rest1, State1, []),
{Rest3, State3} = parse_def_end(Rest2, State2),
{PubId, SysId, Rest3, State3};
%parse_notation_id_1(?STRING_REST(">", Rest), State) ->
% {"", "", Rest, State};
parse_notation_id_1(Bytes, State) ->
unicode_incomplete_check([Bytes, State, fun parse_notation_id_1/2],
"external id or public id expected").
%%======================================================================
%% Character checks and definitions
%%======================================================================
%%----------------------------------------------------------------------
%% Definitions of the first 256 characters
%% 0 - not classified,
%% 1 - base_char or ideographic,
%% 2 - combining_char or digit or extender,
%% 3 - $. or $- or $_ or $:
%%----------------------------------------------------------------------
-define(SMALL, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,2,2,2,2,2,2,2,2,2,2,3,0,
0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,0,0,0,0,3,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,2,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1}).
%%----------------------------------------------------------------------
%% Function : is_name_start(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a valid start of a name.
%% [5] Name ::= (Letter | '_' | ':') (NameChar)*
%%----------------------------------------------------------------------
is_name_start($_) ->
true;
is_name_start($:) ->
true;
is_name_start(C) ->
is_letter(C).
%%----------------------------------------------------------------------
%% Function : is_name_start(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a valid name character.
%% [4] NameChar ::= Letter | Digit | '.' | '-' | '_' | ':'
%% | CombiningChar | Extender
%%----------------------------------------------------------------------
is_name_char(C) ->
try element(C, ?SMALL) > 0
catch _:_ ->
case is_letter(C) of
true ->
true;
false ->
case is_digit(C) of
true -> true;
false ->
case is_combining_char(C) of
true -> true;
false ->
is_extender(C)
end
end
end
end.
%%----------------------------------------------------------------------
%% Function : is_pubid_char(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a public identity character.
%% [13] PubidChar ::= #x20 | #xD | #xA | [a-zA-Z0-9]
%% | [-'()+,./:=?;!*#@$_%]
%%----------------------------------------------------------------------
is_pubid_char(?space) ->
true;
is_pubid_char(?cr) ->
true;
is_pubid_char(?lf) ->
true;
is_pubid_char($!) ->
true;
is_pubid_char($:) ->
true;
is_pubid_char($;) ->
true;
is_pubid_char($=) ->
true;
is_pubid_char($@) ->
true;
is_pubid_char($_) ->
true;
is_pubid_char(C) when $# =< C, C =< $% ->
true;
is_pubid_char(C) when $' =< C, C =< $/ ->
true;
is_pubid_char(C) ->
case is_letter(C) of
true ->
true;
false ->
is_digit(C)
end.
%%----------------------------------------------------------------------
%% Function : is_letter(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a letter.
%% [84] Letter ::= BaseChar | Ideographic
%%----------------------------------------------------------------------
is_letter(C) ->
try element(C, ?SMALL) =:= 1
catch _:_ ->
case is_base_char(C) of
false ->
is_ideographic(C);
true ->
true
end
end.
%%----------------------------------------------------------------------
%% Function : is_letter(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a basic character.
%% [85] BaseChar
%%----------------------------------------------------------------------
is_base_char(C) when C >= 16#0041, C =< 16#005A -> true; %% ASCII Latin
is_base_char(C) when C >= 16#0061, C =< 16#007A -> true;
is_base_char(C) when C >= 16#00C0, C =< 16#00D6 -> true; %% ISO Latin
is_base_char(C) when C >= 16#00D8, C =< 16#00F6 -> true;
is_base_char(C) when C >= 16#00F8, C =< 16#00FF -> true;
is_base_char(C) when C >= 16#0100, C =< 16#0131 -> true; %% Accented Latin
is_base_char(C) when C >= 16#0134, C =< 16#013E -> true;
is_base_char(C) when C >= 16#0141, C =< 16#0148 -> true;
is_base_char(C) when C >= 16#014A, C =< 16#017E -> true;
is_base_char(C) when C >= 16#0180, C =< 16#01C3 -> true;
is_base_char(C) when C >= 16#01CD, C =< 16#01F0 -> true;
is_base_char(C) when C >= 16#01F4, C =< 16#01F5 -> true;
is_base_char(C) when C >= 16#01FA, C =< 16#0217 -> true;
is_base_char(C) when C >= 16#0250, C =< 16#02A8 -> true; %% IPA
is_base_char(C) when C >= 16#02BB, C =< 16#02C1 -> true; %% Spacing Modifiers
is_base_char(16#0386) -> true; %% Greek
is_base_char(C) when C >= 16#0388, C =< 16#038A -> true;
is_base_char(16#038C) -> true;
is_base_char(C) when C >= 16#038E, C =< 16#03A1 -> true;
is_base_char(C) when C >= 16#03A3, C =< 16#03CE -> true;
is_base_char(C) when C >= 16#03D0, C =< 16#03D6 -> true;
is_base_char(16#03DA) -> true;
is_base_char(16#03DC) -> true;
is_base_char(16#03DE) -> true;
is_base_char(16#03E0) -> true;
is_base_char(C) when C >= 16#03E2, C =< 16#03F3 -> true;
is_base_char(C) when C >= 16#0401, C =< 16#040C -> true; %% Cyrillic
is_base_char(C) when C >= 16#040E, C =< 16#044F -> true;
is_base_char(C) when C >= 16#0451, C =< 16#045C -> true;
is_base_char(C) when C >= 16#045E, C =< 16#0481 -> true;
is_base_char(C) when C >= 16#0490, C =< 16#04C4 -> true;
is_base_char(C) when C >= 16#04C7, C =< 16#04C8 -> true;
is_base_char(C) when C >= 16#04CB, C =< 16#04CC -> true;
is_base_char(C) when C >= 16#04D0, C =< 16#04EB -> true;
is_base_char(C) when C >= 16#04EE, C =< 16#04F5 -> true;
is_base_char(C) when C >= 16#04F8, C =< 16#04F9 -> true;
is_base_char(C) when C >= 16#0531, C =< 16#0556 -> true; %% Armenian
is_base_char(16#0559) -> true;
is_base_char(C) when C >= 16#0561, C =< 16#0586 -> true;
is_base_char(C) when C >= 16#05D0, C =< 16#05EA -> true; %% Hebrew
is_base_char(C) when C >= 16#05F0, C =< 16#05F2 -> true;
is_base_char(C) when C >= 16#0621, C =< 16#063A -> true; %% Arabic
is_base_char(C) when C >= 16#0641, C =< 16#064A -> true;
is_base_char(C) when C >= 16#0671, C =< 16#06B7 -> true;
is_base_char(C) when C >= 16#06BA, C =< 16#06BE -> true;
is_base_char(C) when C >= 16#06C0, C =< 16#06CE -> true;
is_base_char(C) when C >= 16#06D0, C =< 16#06D3 -> true;
is_base_char(16#06D5) -> true;
is_base_char(C) when C >= 16#06E5, C =< 16#06E6 -> true;
is_base_char(C) when C >= 16#0905, C =< 16#0939 -> true; %% Devanagari
is_base_char(16#093D) -> true;
is_base_char(C) when C >= 16#0958, C =< 16#0961 -> true;
is_base_char(C) when C >= 16#0985, C =< 16#098C -> true; %% Bengali
is_base_char(C) when C >= 16#098F, C =< 16#0990 -> true;
is_base_char(C) when C >= 16#0993, C =< 16#09A8 -> true;
is_base_char(C) when C >= 16#09AA, C =< 16#09B0 -> true;
is_base_char(16#09B2) -> true;
is_base_char(C) when C >= 16#09B6, C =< 16#09B9 -> true;
is_base_char(C) when C >= 16#09DC, C =< 16#09DD -> true;
is_base_char(C) when C >= 16#09DF, C =< 16#09E1 -> true;
is_base_char(C) when C >= 16#09F0, C =< 16#09F1 -> true;
is_base_char(C) when C >= 16#0A05, C =< 16#0A0A -> true; %% Gurmukhi
is_base_char(C) when C >= 16#0A0F, C =< 16#0A10 -> true;
is_base_char(C) when C >= 16#0A13, C =< 16#0A28 -> true;
is_base_char(C) when C >= 16#0A2A, C =< 16#0A30 -> true;
is_base_char(C) when C >= 16#0A32, C =< 16#0A33 -> true;
is_base_char(C) when C >= 16#0A35, C =< 16#0A36 -> true;
is_base_char(C) when C >= 16#0A38, C =< 16#0A39 -> true;
is_base_char(C) when C >= 16#0A59, C =< 16#0A5C -> true;
is_base_char(16#0A5E) -> true;
is_base_char(C) when C >= 16#0A72, C =< 16#0A74 -> true;
is_base_char(C) when C >= 16#0A85, C =< 16#0A8B -> true; %% Gujarati
is_base_char(16#0A8D) -> true;
is_base_char(C) when C >= 16#0A8F, C =< 16#0A91 -> true;
is_base_char(C) when C >= 16#0A93, C =< 16#0AA8 -> true;
is_base_char(C) when C >= 16#0AAA, C =< 16#0AB0 -> true;
is_base_char(C) when C >= 16#0AB2, C =< 16#0AB3 -> true;
is_base_char(C) when C >= 16#0AB5, C =< 16#0AB9 -> true;
is_base_char(16#0ABD) -> true;
is_base_char(16#0AE0) -> true;
is_base_char(C) when C >= 16#0B05, C =< 16#0B0C -> true; %% Oriya
is_base_char(C) when C >= 16#0B0F, C =< 16#0B10 -> true;
is_base_char(C) when C >= 16#0B13, C =< 16#0B28 -> true;
is_base_char(C) when C >= 16#0B2A, C =< 16#0B30 -> true;
is_base_char(C) when C >= 16#0B32, C =< 16#0B33 -> true;
is_base_char(C) when C >= 16#0B36, C =< 16#0B39 -> true;
is_base_char(16#0B3D) -> true;
is_base_char(C) when C >= 16#0B5C, C =< 16#0B5D -> true;
is_base_char(C) when C >= 16#0B5F, C =< 16#0B61 -> true;
is_base_char(C) when C >= 16#0B85, C =< 16#0B8A -> true; %% Tamil
is_base_char(C) when C >= 16#0B8E, C =< 16#0B90 -> true;
is_base_char(C) when C >= 16#0B92, C =< 16#0B95 -> true;
is_base_char(C) when C >= 16#0B99, C =< 16#0B9A -> true;
is_base_char(16#0B9C) -> true;
is_base_char(C) when C >= 16#0B9E, C =< 16#0B9F -> true;
is_base_char(C) when C >= 16#0BA3, C =< 16#0BA4 -> true;
is_base_char(C) when C >= 16#0BA8, C =< 16#0BAA -> true;
is_base_char(C) when C >= 16#0BAE, C =< 16#0BB5 -> true;
is_base_char(C) when C >= 16#0BB7, C =< 16#0BB9 -> true;
is_base_char(C) when C >= 16#0C05, C =< 16#0C0C -> true; %% Telugu
is_base_char(C) when C >= 16#0C0E, C =< 16#0C10 -> true;
is_base_char(C) when C >= 16#0C12, C =< 16#0C28 -> true;
is_base_char(C) when C >= 16#0C2A, C =< 16#0C33 -> true;
is_base_char(C) when C >= 16#0C35, C =< 16#0C39 -> true;
is_base_char(C) when C >= 16#0C60, C =< 16#0C61 -> true;
is_base_char(C) when C >= 16#0C85, C =< 16#0C8C -> true; %% Kannada
is_base_char(C) when C >= 16#0C8E, C =< 16#0C90 -> true;
is_base_char(C) when C >= 16#0C92, C =< 16#0CA8 -> true;
is_base_char(C) when C >= 16#0CAA, C =< 16#0CB3 -> true;
is_base_char(C) when C >= 16#0CB5, C =< 16#0CB9 -> true;
is_base_char(16#0CDE) -> true;
is_base_char(C) when C >= 16#0CE0, C =< 16#0CE1 -> true;
is_base_char(C) when C >= 16#0D05, C =< 16#0D0C -> true; %% Malayalam
is_base_char(C) when C >= 16#0D0E, C =< 16#0D10 -> true;
is_base_char(C) when C >= 16#0D12, C =< 16#0D28 -> true;
is_base_char(C) when C >= 16#0D2A, C =< 16#0D39 -> true;
is_base_char(C) when C >= 16#0D60, C =< 16#0D61 -> true;
is_base_char(C) when C >= 16#0E01, C =< 16#0E2E -> true; %% Thai
is_base_char(16#0E30) -> true;
is_base_char(C) when C >= 16#0E32, C =< 16#0E33 -> true;
is_base_char(C) when C >= 16#0E40, C =< 16#0E45 -> true;
is_base_char(C) when C >= 16#0E81, C =< 16#0E82 -> true; %% Lao
is_base_char(16#0E84) -> true;
is_base_char(C) when C >= 16#0E87, C =< 16#0E88 -> true;
is_base_char(16#0E8A) -> true;
is_base_char(16#0E8D) -> true;
is_base_char(C) when C >= 16#0E94, C =< 16#0E97 -> true;
is_base_char(C) when C >= 16#0E99, C =< 16#0E9F -> true;
is_base_char(C) when C >= 16#0EA1, C =< 16#0EA3 -> true;
is_base_char(16#0EA5) -> true;
is_base_char(16#0EA7) -> true;
is_base_char(C) when C >= 16#0EAA, C =< 16#0EAB -> true;
is_base_char(C) when C >= 16#0EAD, C =< 16#0EAE -> true;
is_base_char(16#0EB0) -> true;
is_base_char(C) when C >= 16#0EB2, C =< 16#0EB3 -> true;
is_base_char(16#0EBD) -> true;
is_base_char(C) when C >= 16#0EC0, C =< 16#0EC4 -> true;
is_base_char(C) when C >= 16#0F40, C =< 16#0F47 -> true; %% Tibetan
is_base_char(C) when C >= 16#0F49, C =< 16#0F69 -> true;
is_base_char(C) when C >= 16#10A0, C =< 16#10C5 -> true; %% Hangul Jamo
is_base_char(C) when C >= 16#10D0, C =< 16#10F6 -> true;
is_base_char(16#1100) -> true;
is_base_char(C) when C >= 16#1102, C =< 16#1103 -> true;
is_base_char(C) when C >= 16#1105, C =< 16#1107 -> true;
is_base_char(16#1109) -> true;
is_base_char(C) when C >= 16#110B, C =< 16#110C -> true;
is_base_char(C) when C >= 16#110E, C =< 16#1112 -> true;
is_base_char(16#113C) -> true;
is_base_char(16#113E) -> true;
is_base_char(16#1140) -> true;
is_base_char(16#114C) -> true;
is_base_char(16#114E) -> true;
is_base_char(16#1150) -> true;
is_base_char(C) when C >= 16#1154, C =< 16#1155 -> true;
is_base_char(16#1159) -> true;
is_base_char(C) when C >= 16#115F, C =< 16#1161 -> true;
is_base_char(16#1163) -> true;
is_base_char(16#1165) -> true;
is_base_char(16#1167) -> true;
is_base_char(16#1169) -> true;
is_base_char(C) when C >= 16#116D, C =< 16#116E -> true;
is_base_char(C) when C >= 16#1172, C =< 16#1173 -> true;
is_base_char(16#1175) -> true;
is_base_char(16#119E) -> true;
is_base_char(16#11A8) -> true;
is_base_char(16#11AB) -> true;
is_base_char(C) when C >= 16#11AE, C =< 16#11AF -> true;
is_base_char(C) when C >= 16#11B7, C =< 16#11B8 -> true;
is_base_char(16#11BA) -> true;
is_base_char(C) when C >= 16#11BC, C =< 16#11C2 -> true;
is_base_char(16#11EB) -> true;
is_base_char(16#11F0) -> true;
is_base_char(16#11F9) -> true;
is_base_char(C) when C >= 16#1E00, C =< 16#1E9B -> true; %% Latin Extended Additional
is_base_char(C) when C >= 16#1EA0, C =< 16#1EF9 -> true;
is_base_char(C) when C >= 16#1F00, C =< 16#1F15 -> true; %% Greek Extended
is_base_char(C) when C >= 16#1F18, C =< 16#1F1D -> true;
is_base_char(C) when C >= 16#1F20, C =< 16#1F45 -> true;
is_base_char(C) when C >= 16#1F48, C =< 16#1F4D -> true;
is_base_char(C) when C >= 16#1F50, C =< 16#1F57 -> true;
is_base_char(16#1F59) -> true;
is_base_char(16#1F5B) -> true;
is_base_char(16#1F5D) -> true;
is_base_char(C) when C >= 16#1F5F, C =< 16#1F7D -> true;
is_base_char(C) when C >= 16#1F80, C =< 16#1FB4 -> true;
is_base_char(C) when C >= 16#1FB6, C =< 16#1FBC -> true;
is_base_char(16#1FBE) -> true;
is_base_char(C) when C >= 16#1FC2, C =< 16#1FC4 -> true;
is_base_char(C) when C >= 16#1FC6, C =< 16#1FCC -> true;
is_base_char(C) when C >= 16#1FD0, C =< 16#1FD3 -> true;
is_base_char(C) when C >= 16#1FD6, C =< 16#1FDB -> true;
is_base_char(C) when C >= 16#1FE0, C =< 16#1FEC -> true;
is_base_char(C) when C >= 16#1FF2, C =< 16#1FF4 -> true;
is_base_char(C) when C >= 16#1FF6, C =< 16#1FFC -> true;
is_base_char(16#2126) -> true; %% Letterlike Symbols
is_base_char(C) when C >= 16#212A, C =< 16#212B -> true;
is_base_char(16#212E) -> true;
is_base_char(C) when C >= 16#2180, C =< 16#2182 -> true; %% Number Forms
is_base_char(C) when C >= 16#3041, C =< 16#3094 -> true; %% Hiragana
is_base_char(C) when C >= 16#30A1, C =< 16#30FA -> true; %% Katakana
is_base_char(C) when C >= 16#3105, C =< 16#312C -> true; %% Bopomofo
is_base_char(C) when C >= 16#ac00, C =< 16#d7a3 -> true; %% Hangul Syllables
is_base_char(_) ->
false.
%%----------------------------------------------------------------------
%% Function : is_ideographic(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is an ideographic letter.
%% [86] Ideographic
%%----------------------------------------------------------------------
is_ideographic(C) when C >= 16#4e00, C =< 16#9fa5 -> true; %% Unified CJK Ideographs
is_ideographic(16#3007) -> true; %% CJK Symbols and Punctuation
is_ideographic(C) when C >= 16#3021, C =< 16#3029 -> true;
is_ideographic(_) ->
false.
%%----------------------------------------------------------------------
%% Function : is_ideographic(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a combining character.
%% [87] CombiningChar
%%----------------------------------------------------------------------
is_combining_char(C) when C >= 16#0300, C =< 16#0345 -> true; %% Combining Diacritics
is_combining_char(C) when C >= 16#0360, C =< 16#0361 -> true;
is_combining_char(C) when C >= 16#0483, C =< 16#0486 -> true; %% Cyrillic Combining Diacritics
is_combining_char(C) when C >= 16#0591, C =< 16#05a1 -> true; %% Hebrew Combining Diacritics
is_combining_char(C) when C >= 16#05a3, C =< 16#05b9 -> true;
is_combining_char(C) when C >= 16#05bb, C =< 16#05bd -> true;
is_combining_char(16#05bf) -> true;
is_combining_char(C) when C >= 16#05c1, C =< 16#05c2 -> true;
is_combining_char(16#05c4) -> true;
is_combining_char(C) when C >= 16#064b, C =< 16#0652 -> true; %% Arabic Combining Diacritics
is_combining_char(16#0670) -> true;
is_combining_char(C) when C >= 16#06d6, C =< 16#06dc -> true;
is_combining_char(C) when C >= 16#06dd, C =< 16#06df -> true;
is_combining_char(C) when C >= 16#06e0, C =< 16#06e4 -> true;
is_combining_char(C) when C >= 16#06e7, C =< 16#06e8 -> true;
is_combining_char(C) when C >= 16#06ea, C =< 16#06ed -> true;
is_combining_char(C) when C >= 16#0901, C =< 16#0903 -> true; %% Devanagari Combining Diacritics
is_combining_char(16#093c) -> true;
is_combining_char(C) when C >= 16#093e, C =< 16#094c -> true;
is_combining_char(16#094d) -> true;
is_combining_char(C) when C >= 16#0951, C =< 16#0954 -> true;
is_combining_char(C) when C >= 16#0962, C =< 16#0963 -> true;
is_combining_char(C) when C >= 16#0981, C =< 16#0983 -> true; %% Bengali Combining Diacritics
is_combining_char(16#09bc) -> true;
is_combining_char(16#09be) -> true;
is_combining_char(16#09bf) -> true;
is_combining_char(C) when C >= 16#09c0, C =< 16#09c4 -> true;
is_combining_char(C) when C >= 16#09c7, C =< 16#09c8 -> true;
is_combining_char(C) when C >= 16#09cb, C =< 16#09cd -> true;
is_combining_char(16#09d7) -> true;
is_combining_char(C) when C >= 16#09e2, C =< 16#09e3 -> true;
is_combining_char(16#0a02) -> true; %% Gurmukhi Combining Diacritics
is_combining_char(16#0a3c) -> true;
is_combining_char(16#0a3e) -> true;
is_combining_char(16#0a3f) -> true;
is_combining_char(C) when C >= 16#0a40, C =< 16#0a42 -> true;
is_combining_char(C) when C >= 16#0a47, C =< 16#0a48 -> true;
is_combining_char(C) when C >= 16#0a4b, C =< 16#0a4d -> true;
is_combining_char(C) when C >= 16#0a70, C =< 16#0a71 -> true;
is_combining_char(C) when C >= 16#0a81, C =< 16#0a83 -> true; %% Gujarati Combining Diacritics
is_combining_char(16#0abc) -> true;
is_combining_char(C) when C >= 16#0abe, C =< 16#0ac5 -> true;
is_combining_char(C) when C >= 16#0ac7, C =< 16#0ac9 -> true;
is_combining_char(C) when C >= 16#0acb, C =< 16#0acd -> true;
is_combining_char(C) when C >= 16#0b01, C =< 16#0b03 -> true; %% Oriya Combining Diacritics
is_combining_char(16#0b3c) -> true;
is_combining_char(C) when C >= 16#0b3e, C =< 16#0b43 -> true;
is_combining_char(C) when C >= 16#0b47, C =< 16#0b48 -> true;
is_combining_char(C) when C >= 16#0b4b, C =< 16#0b4d -> true;
is_combining_char(C) when C >= 16#0b56, C =< 16#0b57 -> true;
is_combining_char(C) when C >= 16#0b82, C =< 16#0b83 -> true; %% Tamil Combining Diacritics
is_combining_char(C) when C >= 16#0bbe, C =< 16#0bc2 -> true;
is_combining_char(C) when C >= 16#0bc6, C =< 16#0bc8 -> true;
is_combining_char(C) when C >= 16#0bca, C =< 16#0bcd -> true;
is_combining_char(16#0bd7) -> true;
is_combining_char(C) when C >= 16#0c01, C =< 16#0c03 -> true; %% Telugu Combining Diacritics
is_combining_char(C) when C >= 16#0c3e, C =< 16#0c44 -> true;
is_combining_char(C) when C >= 16#0c46, C =< 16#0c48 -> true;
is_combining_char(C) when C >= 16#0c4a, C =< 16#0c4d -> true;
is_combining_char(C) when C >= 16#0c55, C =< 16#0c56 -> true;
is_combining_char(C) when C >= 16#0c82, C =< 16#0c83 -> true; %% Kannada Combining Diacritics
is_combining_char(C) when C >= 16#0cbe, C =< 16#0cc4 -> true;
is_combining_char(C) when C >= 16#0cc6, C =< 16#0cc8 -> true;
is_combining_char(C) when C >= 16#0cca, C =< 16#0ccd -> true;
is_combining_char(C) when C >= 16#0cd5, C =< 16#0cd6 -> true;
is_combining_char(C) when C >= 16#0d02, C =< 16#0d03 -> true; %% Malayalam Combining Diacritics
is_combining_char(C) when C >= 16#0d3e, C =< 16#0d43 -> true;
is_combining_char(C) when C >= 16#0d46, C =< 16#0d48 -> true;
is_combining_char(C) when C >= 16#0d4a, C =< 16#0d4d -> true;
is_combining_char(16#0d57) -> true;
is_combining_char(16#0e31) -> true; %% Thai Combining Diacritics
is_combining_char(C) when C >= 16#0e34, C =< 16#0e3a -> true;
is_combining_char(C) when C >= 16#0e47, C =< 16#0e4e -> true;
is_combining_char(16#0eb1) -> true; %% Lao Combining Diacritics
is_combining_char(C) when C >= 16#0eb4, C =< 16#0eb9 -> true;
is_combining_char(C) when C >= 16#0ebb, C =< 16#0ebc -> true;
is_combining_char(C) when C >= 16#0ec8, C =< 16#0ecd -> true;
is_combining_char(C) when C >= 16#0f18, C =< 16#0f19 -> true; %% Tibetan Combining Diacritics
is_combining_char(16#0f35) -> true;
is_combining_char(16#0f37) -> true;
is_combining_char(16#0f39) -> true;
is_combining_char(16#0f3e) -> true;
is_combining_char(16#0f3f) -> true;
is_combining_char(C) when C >= 16#0f71, C =< 16#0f84 -> true;
is_combining_char(C) when C >= 16#0f86, C =< 16#0f8b -> true;
is_combining_char(C) when C >= 16#0f90, C =< 16#0f95 -> true;
is_combining_char(16#0f97) -> true;
is_combining_char(C) when C >= 16#0f99, C =< 16#0fad -> true;
is_combining_char(C) when C >= 16#0fb1, C =< 16#0fb7 -> true;
is_combining_char(16#0fb9) -> true;
is_combining_char(C) when C >= 16#20d0, C =< 16#20dc -> true; %% Math/Technical Combining Diacritics
is_combining_char(16#20e1) -> true;
is_combining_char(C) when C >= 16#302a, C =< 16#302f -> true; %% Ideographic Diacritics
is_combining_char(16#3099) -> true; %% Hiragana/Katakana Combining Diacritics
is_combining_char(16#309a) -> true;
is_combining_char(_) -> false.
%%----------------------------------------------------------------------
%% Function : is_digit(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is a digit.
%% [88] Digit
%%----------------------------------------------------------------------
is_digit(C) when C >= 16#0030, C =< 16#0039 -> true; %% Basic ASCII digits 0-9
is_digit(C) when C >= 16#0660, C =< 16#0669 -> true; %% Arabic Digits 0-9
is_digit(C) when C >= 16#06F0, C =< 16#06F9 -> true; %% Eastern Arabic-Indic Digits 0-9
is_digit(C) when C >= 16#0966, C =< 16#096f -> true; %% Devanagari Digits 0-9
is_digit(C) when C >= 16#09e6, C =< 16#09ef -> true; %% Bengali Digits 0-9
is_digit(C) when C >= 16#0a66, C =< 16#0a6f -> true; %% Gurmukhi Digits 0-9
is_digit(C) when C >= 16#0ae6, C =< 16#0aef -> true; %% Gujarati Digits 0-9
is_digit(C) when C >= 16#0b66, C =< 16#0b6f -> true; %% Oriya Digits 0-9
is_digit(C) when C >= 16#0be7, C =< 16#0bef -> true; %% Tamil Digits 0-9
is_digit(C) when C >= 16#0c66, C =< 16#0c6f -> true; %% Telugu Digits 0-9
is_digit(C) when C >= 16#0ce6, C =< 16#0cef -> true; %% Kannada Digits 0-9
is_digit(C) when C >= 16#0d66, C =< 16#0d6f -> true; %% Malayalam Digits 0-9
is_digit(C) when C >= 16#0e50, C =< 16#0e59 -> true; %% Thai Digits 0-9
is_digit(C) when C >= 16#0ed0, C =< 16#0ed9 -> true; %% Lao Digits 0-9
is_digit(C) when C >= 16#0f20, C =< 16#0f29 -> true; %% Tibetan Digits 0-9
is_digit(_) -> false.
%%----------------------------------------------------------------------
%% Function : is_extender(Char) -> Result
%% Parameters: Char = char()
%% Result : true | false
%% Description: Check if character is an extender character.
%% [89] Extender
%%----------------------------------------------------------------------
is_extender(16#00b7) -> true; %% Middle Dot
is_extender(16#02d0) -> true; %% Triangular Colon and Half Colon
is_extender(16#02d1) -> true;
is_extender(16#0387) -> true; %% Greek Ano Teleia
is_extender(16#0640) -> true; %% Arabic Tatweel
is_extender(16#0e46) -> true; %% Thai Maiyamok
is_extender(16#0ec6) -> true; %% Lao Ko La
is_extender(16#3005) -> true; %% Ideographic Iteration Mark
is_extender(C) when C >= 16#3031, C =< 16#3035 -> true; %% Japanese Kana Repetition Marks
is_extender(C) when C >= 16#309d, C =< 16#309e -> true; %% Japanese Hiragana Iteration Marks
is_extender(C) when C >= 16#30fc, C =< 16#30fe -> true; %% Japanese Kana Iteration Marks
is_extender(_) -> false.
%%======================================================================
%% Callback and Continuation function handling
%%======================================================================
%%----------------------------------------------------------------------
%% Function : event_callback(Event, State) -> Result
%% Parameters: Event = term()
%% State = #xmerl_sax_parser_state{}
%% Result : #xmerl_sax_parser_state{}
%% Description: Function that uses provided fun to send parser events.
%%----------------------------------------------------------------------
event_callback(Event,
#xmerl_sax_parser_state{
event_fun=CbFun,
event_state=EventState,
line_no=N,
entity=E,
current_location=L
} = State) ->
try
NewEventState = CbFun(Event, {L, E, N}, EventState),
State#xmerl_sax_parser_state{event_state=NewEventState}
catch
throw:ErrorTerm ->
throw({event_receiver_error, State, ErrorTerm});
exit:Reason ->
throw({event_receiver_error, State, {'EXIT', Reason}})
end.
%%----------------------------------------------------------------------
%% Function : cf(Rest, State, NextCall) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% NextCall = fun()
%% Result : {Rest, State}
%% Description: Function that uses provided fun to read another chunk from
%% input stream and calls the fun in NextCall.
%%----------------------------------------------------------------------
cf(_Rest, #xmerl_sax_parser_state{continuation_fun = undefined} = State, _) ->
?fatal_error(State, "Continuation function undefined");
cf(Rest, #xmerl_sax_parser_state{continuation_fun = CFun, continuation_state = CState} = State,
NextCall) ->
Result =
try
CFun(CState)
catch
throw:ErrorTerm ->
?fatal_error(State, ErrorTerm);
exit:Reason ->
?fatal_error(State, {'EXIT', Reason})
end,
case Result of
{?STRING_EMPTY, _} ->
?fatal_error(State, "No more bytes");
{NewBytes, NewContState} ->
NextCall(?APPEND_STRING(Rest, NewBytes),
State#xmerl_sax_parser_state{continuation_state = NewContState})
end.
%%----------------------------------------------------------------------
%% Function : cf(Rest, State, NextCall, P) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% NextCall = fun()
%% P = term()
%% Result : {Rest, State}
%% Description: Function that uses provided fun to read another chunk from
%% input stream and calls the fun in NextCall with P as last parameter.
%%----------------------------------------------------------------------
cf(_Rest, #xmerl_sax_parser_state{continuation_fun = undefined} = State, _P, _) ->
?fatal_error(State, "Continuation function undefined");
cf(Rest, #xmerl_sax_parser_state{continuation_fun = CFun, continuation_state = CState} = State,
P, NextCall) ->
Result =
try
CFun(CState)
catch
throw:ErrorTerm ->
?fatal_error(State, ErrorTerm);
exit:Reason ->
?fatal_error(State, {'EXIT', Reason})
end,
case Result of
{?STRING_EMPTY, _} ->
?fatal_error(State, "No more bytes");
{NewBytes, NewContState} ->
NextCall(?APPEND_STRING(Rest, NewBytes),
State#xmerl_sax_parser_state{continuation_state = NewContState},
P)
end.
%%----------------------------------------------------------------------
%% Function : cf(Rest, State, P1, P2, NextCall) -> Result
%% Parameters: Rest = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% NextCall = fun()
%% P1 = term()
%% P2 = term()
%% Result : {Rest, State}
%% Description: Function that uses provided fun to read another chunk from
%% input stream and calls the fun in NextCall with P1 and
%% P2 as last parameters.
%%----------------------------------------------------------------------
cf(_Rest, #xmerl_sax_parser_state{continuation_fun = undefined} = State, _P1, _P2, _) ->
?fatal_error(State, "Continuation function undefined");
cf(Rest, #xmerl_sax_parser_state{continuation_fun = CFun, continuation_state = CState} = State,
P1, P2, NextCall) ->
Result =
try
CFun(CState)
catch
throw:ErrorTerm ->
?fatal_error(State, ErrorTerm);
exit:Reason ->
?fatal_error(State, {'EXIT', Reason})
end,
case Result of
{?STRING_EMPTY, _} ->
?fatal_error(State, "No more bytes");
{NewBytes, NewContState} ->
NextCall(?APPEND_STRING(Rest, NewBytes),
State#xmerl_sax_parser_state{continuation_state = NewContState},
P1, P2)
end.
%%----------------------------------------------------------------------
%% Function : unicode_incomplete_check(Args, ErrString) -> Result
%% Parameters: Args = [Bytes, State | RestOfArgs]
%% Bytes = string() | binary()
%% State = #xmerl_sax_parser_state{}
%% RestOfArgs =
%% ErrString = string()
%% Result : {Rest, State}
%% Description:
%%----------------------------------------------------------------------
unicode_incomplete_check([Bytes, #xmerl_sax_parser_state{encoding=Enc} = State | _] = Args, ErrString) when is_binary(Bytes) ->
case unicode:characters_to_list(Bytes, Enc) of
{incomplete, _, _} ->
apply(?MODULE, cf, Args);
{error, _Encoded, _Rest} ->
?fatal_error(State, lists:flatten(io_lib:format("Bad character, not in ~p\n", [Enc])));
_ when ErrString =/= undefined ->
?fatal_error(State, ErrString)
end;
unicode_incomplete_check([Bytes,State | _], ErrString) when is_list(Bytes), ErrString =/= undefined ->
?fatal_error(State, ErrString).
%%----------------------------------------------------------------------
%% Function : check_uri(Uri, CL) -> Result
%% Parameters: Uri = string()
%% CL = string()
%% Result : {atom(), string()}
%% Description:
%%----------------------------------------------------------------------
check_uri("http://" ++ _ = Url, _CL) ->
{http, Url};
check_uri("file://" ++ Path, _CL) ->
{file, Path};
check_uri(Path, CL) -> % ordinary filepath other URI's not supported yet
%% "file://" already removed when current_location set
Tag = get_uri_tag(CL),
case filename:pathtype(Path) of
relative ->
case Tag of
false ->
{file, filename:join(CL, Path)};
T ->
{T, CL ++ "/" ++ Path}
end;
absolute ->
case Tag of
false ->
{file, filename:absname(Path)};
T ->
{T, CL ++ "/" ++ Path}
end;
volumerelative -> % only windows
case Tag of
false ->
[Vol | _] = re:split(CL, ":", [{return,list}]),
{file, filename:join(Vol ++ ":", Path)};
T ->
{T, CL ++ "/" ++ Path}
end
end.
%%----------------------------------------------------------------------
%% Function : get_uri_tag(Uri) -> Result
%% Parameters: Uri = string()
%% Result : true |false
%% Description: http / file is the only supported URI for the moment
%%----------------------------------------------------------------------
get_uri_tag(Uri) ->
case re:split(Uri, "://", [{return,list}]) of
[Tag, _] ->
list_to_atom(Tag);
[_] ->
false
end.
%%----------------------------------------------------------------------
%% Function : http_get_file(Host, Port, Key) -> Result
%% Parameters: Host = string()
%% Port = integer()
%% Key = string()
%% Result : string()
%% Description:
%%----------------------------------------------------------------------
http_get_file(Host, Port, Key) ->
ConnectTimeOut = 10000,
SendTimeout = 10000,
FilenameTempl = filename:basename(Key),
{Filename, FD} = create_tempfile(FilenameTempl),
Socket = create_connection(Host, Port, ConnectTimeOut),
Request = "GET " ++ Key ++ " HTTP/1.0\r\n\r\n",
case gen_tcp:send(Socket, Request) of
ok ->
try
receive_msg(Socket, FD, true, SendTimeout)
catch
throw:{error, Error} ->
ok = file:close(FD),
ok = file:delete(Filename),
throw({error, Error})
end;
{error, _Reason} ->
ok = file:close(FD),
ok = file:delete(Filename),
throw({error, lists:flatten(io_lib:format("Couldn't fetch http://~s:~p/~s",
[Host, Port, Key]))})
end,
ok = file:close(FD),
Filename.
%%----------------------------------------------------------------------
%% Function : receive_msg(Socket, FD, WaitForHeader, Timeout) -> Result
%% Parameters: Socket = io_device()
%% FD = io_device()
%% WaitForHeader = boolean()
%% Timeout = integer()
%% Result : ok
%% Description:
%%----------------------------------------------------------------------
receive_msg(Socket, FD, WaitForHeader, Timeout) ->
receive
{tcp_closed, Socket} ->
ok;
{tcp, Socket, Response} when WaitForHeader == false ->
ok = file:write(FD, Response),
receive_msg(Socket, FD, WaitForHeader, Timeout);
{tcp, Socket, Response} ->
MsgBody = remove_header(Response),
ok = file:write(FD, MsgBody),
receive_msg(Socket, FD, false, Timeout);
{tcp_error, Socket, _Reason} ->
gen_tcp:close(Socket),
throw({error, "http connection failed"})
after Timeout ->
gen_tcp:close(Socket),
throw({error, "http connection timedout"})
end.
remove_header(<<"\r\n\r\n", MsgBody/binary>>) ->
MsgBody;
remove_header(<<_C, Rest/binary>>) ->
remove_header(Rest).
%%----------------------------------------------------------------------
%% Function : create_connection(Host, Port, Timeout) -> Result
%% Parameters: Host = string()
%% Port = integer()
%% Timeout = integer()
%% Result : io_device()
%% Description:
%%----------------------------------------------------------------------
create_connection(Host, Port, Timeout) ->
case gen_tcp:connect(Host, Port,[{packet,0}, binary, {reuseaddr,true}], Timeout) of
{ok,Socket} ->
Socket;
{error, Reason} ->
throw({error, lists:flatten(io_lib:format("Can't connect to ~s:~p ~p\n",
[Host, Port, Reason]))})
end.
%%----------------------------------------------------------------------
%% Function : http(Url) -> Result
%% Parameters: Url = string()
%% Result : {Host, PortInt, Key}
%% Description:
%%----------------------------------------------------------------------
http("http://" ++ Address) ->
case string:tokens(Address, ":") of
[Host, Rest] ->
%% At his stage we know that address contains a Port number.
{Port, Key} = split_to_slash(Rest, []),
case catch list_to_integer(Port) of
PortInt when is_integer(PortInt) ->
{Host, PortInt, Key};
_ ->
throw({error, "Malformed key; port not an integer, should be http://Host:Port/path or http://Host/path"})
end;
[Address] ->
%% Use default port
{Host, Key} = split_to_slash(Address, []),
{Host, ?HTTP_DEF_PORT, Key};
_What ->
throw({error, "Malformed key; should be http://Host:Port/path or http://Host/path"})
end.
%%----------------------------------------------------------------------
%% Function : split_to_slash(String, Acc) -> Result
%% Parameters: String = string()
%% Acc = string()
%% Result : {string(), string()}
%% Description:
%%----------------------------------------------------------------------
split_to_slash([], _Acc) ->
throw({error, "No Key given Host:Port/Key"});
split_to_slash([$/|Rest], Acc) ->
{lists:reverse(Acc), [$/|Rest]};
split_to_slash([H|T], Acc) ->
split_to_slash(T, [H|Acc]).
%%----------------------------------------------------------------------
%% Function : create_tempfile(Template) -> Result
%% Parameters: Template = string()
%% Result : string()
%% Description:
%%----------------------------------------------------------------------
create_tempfile(Template) ->
TmpDir =
case os:type() of
{unix, _} ->
case file:read_file_info("/tmp") of
{ok, _} ->
"/tmp";
{error,enoent} ->
throw({error, "/tmp doesn't exist"})
end;
{win32, _} ->
case os:getenv("TMP") of
false ->
case os:getenv("TEMP") of
false ->
throw({error, "Variabel TMP or TEMP doesn't exist"});
P2 ->
P2
end;
P1 ->
P1
end
end,
TmpNameBase = filename:join([TmpDir, os:getpid() ++ Template ++ "."]),
create_tempfile_1(TmpNameBase, 1).
create_tempfile_1(TmpNameBase, N) ->
FileName = TmpNameBase ++ integer_to_list(N),
case file:open(FileName, [write, binary]) of
{error, _Reason} ->
create_tempfile_1(TmpNameBase, N+1);
{ok, FD} ->
{FileName, FD}
end.
%%----------------------------------------------------------------------
%% Function : filter_endtag_stack(EndTagStack) -> Result
%% Parameters: EndTagStack = [{term(), string(), string(),
%% term(), nslist(), nslist()}]
%% Result : [string()]
%% Description: Returns a stack with just local names.
%%----------------------------------------------------------------------
filter_endtag_stack(EndTagStack) ->
filter_endtag_stack(EndTagStack,[]).
filter_endtag_stack([], Acc) ->
lists:reverse(Acc);
filter_endtag_stack([{_,_,N,_,_,_}| Ts], Acc) ->
filter_endtag_stack(Ts, [N |Acc]).
%%----------------------------------------------------------------------
%% Function : format_error(Tag, State, Reason) -> Result
%% Parameters: Tag = atom(),
%% State = xmerl_sax_parser_state()
%% Reason = string()
%% Result : {atom(), {string(), string(), integer()}, string(), [string()], event_state()}
%% Description: Format the resulting error tuple
%%----------------------------------------------------------------------
format_error(Tag, State, Reason) ->
{Tag,
{
State#xmerl_sax_parser_state.current_location,
State#xmerl_sax_parser_state.entity,
State#xmerl_sax_parser_state.line_no
},
Reason,
filter_endtag_stack(State#xmerl_sax_parser_state.end_tags),
State#xmerl_sax_parser_state.event_state}.
