%% vim: tabstop=8:shiftwidth=4
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2000-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%%
-module(asn1ct_parser2).
-export([parse/1]).
-include("asn1_records.hrl").
%% Only used internally within this module.
-record(typereference, {pos,val}).
-record(constraint, {c,e}).
-record(identifier, {pos,val}).
%% parse all types in module
parse(Tokens) ->
case catch parse_ModuleDefinition(Tokens) of
{'EXIT',Reason} ->
{error,{{undefined,get(asn1_module),
[internal,error,'when',parsing,module,definition,Reason]},
hd(Tokens)}};
{asn1_error,Reason} ->
{error,{Reason,hd(Tokens)}};
{ModuleDefinition,Rest1} ->
{Types,Rest2} = parse_AssignmentList(Rest1),
clean_process_dictionary(),
case Rest2 of
[{'END',_}|_Rest3] ->
{ok,ModuleDefinition#module{typeorval = Types}};
_ ->
{error,{{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'END']},
hd(Rest2)}}
end
end.
clean_process_dictionary() ->
Mod = erase(asn1_module),
_ = erase({Mod,imports}),
_ = erase(tagdefault),
_ = erase(extensiondefault),
ok.
parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) ->
put(asn1_module,ModuleIdentifier),
{_DefinitiveIdentifier,Rest02} =
case Rest0 of
[{'{',_}|_Rest01] ->
parse_ObjectIdentifierValue(Rest0);
_ ->
{[],Rest0}
end,
Rest = case Rest02 of
[{'DEFINITIONS',_}|Rest03] ->
Rest03;
_ ->
throw({asn1_error,{get_line(hd(Rest02)),get(asn1_module),
[got,get_token(hd(Rest02)),
expected,'DEFINITIONS']}})
end,
{TagDefault,Rest2} =
case Rest of
[{'EXPLICIT',_L3},{'TAGS',_L4}|Rest1] ->
put(tagdefault,'EXPLICIT'), {'EXPLICIT',Rest1};
[{'IMPLICIT',_L3},{'TAGS',_L4}|Rest1] ->
put(tagdefault,'IMPLICIT'), {'IMPLICIT',Rest1};
[{'AUTOMATIC',_L3},{'TAGS',_L4}|Rest1] ->
put(tagdefault,'AUTOMATIC'), {'AUTOMATIC',Rest1};
Rest1 ->
put(tagdefault,'EXPLICIT'), {'EXPLICIT',Rest1} % The default
end,
{ExtensionDefault,Rest3} =
case Rest2 of
[{'EXTENSIBILITY',_L5}, {'IMPLIED',_L6}|Rest21] ->
put(extensiondefault,'IMPLIED'),{'IMPLIED',Rest21};
_ ->
put(extensiondefault,undefined),{undefined,Rest2}
end,
case Rest3 of
[{'::=',_L7}, {'BEGIN',_L8}|Rest4] ->
{Exports, Rest5} = parse_Exports(Rest4),
{{imports, Imports}, Rest6} = parse_Imports(Rest5),
put({get(asn1_module), imports}, Imports),
{#module{ pos = L1,
name = ModuleIdentifier,
defid = [], % fix this
tagdefault = TagDefault,
extensiondefault = ExtensionDefault,
exports = Exports,
imports = {imports, Imports}}, Rest6};
_ -> throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
[got,get_token(hd(Rest3)),expected,"::= BEGIN"]}})
end;
parse_ModuleDefinition(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,typereference]}}).
parse_Exports([{'EXPORTS',_L1},{';',_L2}|Rest]) ->
{{exports,[]},Rest};
parse_Exports([{'EXPORTS',_},{'ALL',_},{';',_}|Rest]) ->
%% Same as no exports definition.
{{exports,all},Rest};
parse_Exports([{'EXPORTS',_L1}|Rest]) ->
{SymbolList,Rest2} = parse_SymbolList(Rest),
case Rest2 of
[{';',_}|Rest3] ->
{{exports,SymbolList},Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,';']}})
end;
parse_Exports(Rest) ->
{{exports,all},Rest}.
parse_SymbolList(Tokens) ->
parse_SymbolList(Tokens,[]).
parse_SymbolList(Tokens,Acc) ->
{Symbol,Rest} = parse_Symbol(Tokens),
case Rest of
[{',',_L1}|Rest2] ->
parse_SymbolList(Rest2,[Symbol|Acc]);
Rest2 ->
{lists:reverse([Symbol|Acc]),Rest2}
end.
parse_Symbol(Tokens) ->
parse_Reference(Tokens).
parse_Reference([{typereference,L1,TrefName},{'{',_L2},{'}',_L3}|Rest]) ->
% {Tref,Rest};
{tref2Exttref(L1,TrefName),Rest};
parse_Reference([Tref1 = {typereference,_,_},{'.',_},Tref2 = {typereference,_,_},
{'{',_L2},{'}',_L3}|Rest]) ->
% {{Tref1,Tref2},Rest};
{{tref2Exttref(Tref1),tref2Exttref(Tref2)},Rest};
parse_Reference([Tref = {typereference,_L1,_TrefName}|Rest]) ->
{tref2Exttref(Tref),Rest};
parse_Reference([Vref = {identifier,_L1,_VName},{'{',_L2},{'}',_L3}|Rest]) ->
{identifier2Extvalueref(Vref),Rest};
parse_Reference([Vref = {identifier,_L1,_VName}|Rest]) ->
{identifier2Extvalueref(Vref),Rest};
parse_Reference(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[typereference,identifier]]}}).
parse_Imports([{'IMPORTS',_L1},{';',_L2}|Rest]) ->
{{imports,[]},Rest};
parse_Imports([{'IMPORTS',_L1}|Rest]) ->
{SymbolsFromModuleList,Rest2} = parse_SymbolsFromModuleList(Rest),
case Rest2 of
[{';',_L2}|Rest3] ->
{{imports,SymbolsFromModuleList},Rest3};
Rest3 ->
throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
[got,get_token(hd(Rest3)),expected,';']}})
end;
parse_Imports(Tokens) ->
{{imports,[]},Tokens}.
parse_SymbolsFromModuleList(Tokens) ->
parse_SymbolsFromModuleList(Tokens,[]).
parse_SymbolsFromModuleList(Tokens,Acc) ->
{SymbolsFromModule,Rest} = parse_SymbolsFromModule(Tokens),
case (catch parse_SymbolsFromModule(Rest)) of
{Sl,_Rest2} when is_record(Sl,'SymbolsFromModule') ->
parse_SymbolsFromModuleList(Rest,[SymbolsFromModule|Acc]);
_ ->
{lists:reverse([SymbolsFromModule|Acc]),Rest}
end.
parse_SymbolsFromModule(Tokens) ->
SetRefModuleName =
fun(N) ->
fun(X) when is_record(X,'Externaltypereference')->
X#'Externaltypereference'{module=N};
(X) when is_record(X,'Externalvaluereference')->
X#'Externalvaluereference'{module=N}
end
end,
{SymbolList,Rest} = parse_SymbolList(Tokens),
case Rest of
[{'FROM',_L1},Tref = {typereference,_,Name},Ref={identifier,_L2,_Id},C={',',_}|Rest2] ->
NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
{#'SymbolsFromModule'{symbols=NewSymbolList,
module=tref2Exttref(Tref)},[Ref,C|Rest2]};
%% This a special case when there is only one Symbol imported
%% from the next module. No other way to distinguish Ref from
%% a part of the GlobalModuleReference of Name.
[{'FROM',_L1},Tref = {typereference,_,Name},Ref = {identifier,_L2,_Id},From = {'FROM',_}|Rest2] ->
NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
{#'SymbolsFromModule'{symbols=NewSymbolList,
module=tref2Exttref(Tref)},[Ref,From|Rest2]};
[{'FROM',_L1},Tref = {typereference,_,Name},{identifier,_L2,_Id}|Rest2] ->
NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
{#'SymbolsFromModule'{symbols=NewSymbolList,
module=tref2Exttref(Tref)},Rest2};
[{'FROM',_L1},Tref = {typereference,_,Name},Brace = {'{',_}|Rest2] ->
{_ObjIdVal,Rest3} = parse_ObjectIdentifierValue([Brace|Rest2]), % value not used yet, fix me
NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
{#'SymbolsFromModule'{symbols=NewSymbolList,
module=tref2Exttref(Tref)},Rest3};
[{'FROM',_L1},Tref = {typereference,_,Name}|Rest2] ->
NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
{#'SymbolsFromModule'{symbols=NewSymbolList,
module=tref2Exttref(Tref)},Rest2};
_ ->
throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
[got,get_token(hd(Rest)),expected,
['FROM typerefernece identifier ,',
'FROM typereference identifier',
'FROM typereference {',
'FROM typereference']]}})
end.
parse_ObjectIdentifierValue([{'{',_}|Rest]) ->
parse_ObjectIdentifierValue(Rest,[]).
parse_ObjectIdentifierValue([{number,_,Num}|Rest],Acc) ->
parse_ObjectIdentifierValue(Rest,[Num|Acc]);
parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {number,_,Num}, {')',_}|Rest],Acc) ->
parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,Num}|Acc]);
parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {identifier,_,Id2}, {')',_}|Rest],Acc) ->
parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,Id2}|Acc]);
parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {typereference,_,Tref},{'.',_},{identifier,_,Id2}, {')',_}|Rest],Acc) ->
parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,{'ExternalValue',Tref,Id2}}|Acc]);
parse_ObjectIdentifierValue([Id = {identifier,_,_}|Rest],Acc) ->
parse_ObjectIdentifierValue(Rest,[identifier2Extvalueref(Id)|Acc]);
parse_ObjectIdentifierValue([{'}',_}|Rest],Acc) ->
{lists:reverse(Acc),Rest};
parse_ObjectIdentifierValue([H|_T],_Acc) ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,
['{ some of the following }',number,'identifier ( number )',
'identifier ( identifier )',
'identifier ( typereference.identifier)',identifier]]}}).
parse_AssignmentList(Tokens = [{'END',_}|_Rest]) ->
{[],Tokens};
parse_AssignmentList(Tokens = [{'$end',_}|_Rest]) ->
{[],Tokens};
parse_AssignmentList(Tokens) ->
parse_AssignmentList(Tokens,[]).
parse_AssignmentList(Tokens= [{'END',_}|_Rest],Acc) ->
{lists:reverse(Acc),Tokens};
parse_AssignmentList(Tokens= [{'$end',_}|_Rest],Acc) ->
{lists:reverse(Acc),Tokens};
parse_AssignmentList(Tokens,Acc) ->
case (catch parse_Assignment(Tokens)) of
{'EXIT',Reason} ->
exit(Reason);
{asn1_error,R} ->
% [H|T] = Tokens,
throw({error,{R,hd(Tokens)}});
{Assignment,Rest} ->
parse_AssignmentList(Rest,[Assignment|Acc])
end.
parse_Assignment(Tokens) ->
Flist = [fun parse_TypeAssignment/1,
fun parse_ValueAssignment/1,
fun parse_ObjectClassAssignment/1,
fun parse_ObjectAssignment/1,
fun parse_ObjectSetAssignment/1,
fun parse_ParameterizedAssignment/1,
fun parse_ValueSetTypeAssignment/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
{asn1_assignment_error,Reason} ->
throw({asn1_error,Reason});
Result ->
Result
end.
parse_or(Tokens,Flist) ->
parse_or(Tokens,Flist,[]).
parse_or(_Tokens,[],ErrList) ->
case ErrList of
[] ->
throw({asn1_error,{parse_or,ErrList}});
L when is_list(L) ->
%% chose to throw 1) the error with the highest line no,
%% 2) the last error which is not a asn1_assignment_error or
%% 3) the last error.
throw(prioritize_error(ErrList))
end;
parse_or(Tokens,[Fun|Frest],ErrList) ->
case (catch Fun(Tokens)) of
Exit = {'EXIT',_Reason} ->
parse_or(Tokens,Frest,[Exit|ErrList]);
AsnErr = {asn1_error,_} ->
parse_or(Tokens,Frest,[AsnErr|ErrList]);
AsnAssErr = {asn1_assignment_error,_} ->
parse_or(Tokens,Frest,[AsnAssErr|ErrList]);
Result = {_,L} when is_list(L) ->
Result;
Error ->
parse_or(Tokens,Frest,[Error|ErrList])
end.
parse_or_tag(Tokens,Flist) ->
parse_or_tag(Tokens,Flist,[]).
parse_or_tag(_Tokens,[],ErrList) ->
case ErrList of
[] ->
throw({asn1_error,{parse_or_tag,ErrList}});
L when is_list(L) ->
%% chose to throw 1) the error with the highest line no,
%% 2) the last error which is not a asn1_assignment_error or
%% 3) the last error.
throw(prioritize_error(ErrList))
end;
parse_or_tag(Tokens,[{Tag,Fun}|Frest],ErrList) when is_function(Fun) ->
case (catch Fun(Tokens)) of
Exit = {'EXIT',_Reason} ->
parse_or_tag(Tokens,Frest,[Exit|ErrList]);
AsnErr = {asn1_error,_} ->
parse_or_tag(Tokens,Frest,[AsnErr|ErrList]);
AsnAssErr = {asn1_assignment_error,_} ->
parse_or_tag(Tokens,Frest,[AsnAssErr|ErrList]);
{ParseRes,Rest} when is_list(Rest) ->
{{Tag,ParseRes},Rest};
Error ->
parse_or_tag(Tokens,Frest,[Error|ErrList])
end.
parse_TypeAssignment([{typereference,L1,Tref},{'::=',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{#typedef{pos=L1,name=Tref,typespec=Type},Rest2};
parse_TypeAssignment([H1,H2|_Rest]) ->
throw({asn1_assignment_error,{get_line(H1),get(asn1_module),
[got,[get_token(H1),get_token(H2)], expected,
typereference,'::=']}});
parse_TypeAssignment([H|_T]) ->
throw({asn1_assignment_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,
typereference]}}).
%% parse_Type(Tokens) -> Ret
%%
%% Tokens = [Tok]
%% Tok = tuple()
%% Ret = #type{}
%%
parse_Type(Tokens) ->
{Tag,Rest3} = case Tokens of
[Lbr= {'[',_}|Rest] ->
parse_Tag([Lbr|Rest]);
Rest-> {[],Rest}
end,
{Tag2,Rest4} = case Rest3 of
[{'IMPLICIT',_}|Rest31] when is_record(Tag,tag)->
{[Tag#tag{type='IMPLICIT'}],Rest31};
[{'EXPLICIT',_}|Rest31] when is_record(Tag,tag)->
{[Tag#tag{type='EXPLICIT'}],Rest31};
Rest31 when is_record(Tag,tag) ->
{[Tag#tag{type={default,get(tagdefault)}}],Rest31};
Rest31 ->
{Tag,Rest31}
end,
Flist = [fun parse_BuiltinType/1,fun parse_ReferencedType/1,fun parse_TypeWithConstraint/1],
{Type,Rest5} = case (catch parse_or(Rest4,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_Reason} ->
throw(AsnErr);
Result ->
Result
end,
case Rest5 of
[{'(',_}|_] ->
{Constraints,Rest6} = parse_Constraints(Rest5),
{Type#type{tag=Tag2,
constraint=merge_constraints(Constraints)},Rest6};
[_|_] ->
{Type#type{tag=Tag2},Rest5}
end.
parse_BuiltinType([{'BIT',_},{'STRING',_}|Rest]) ->
case Rest of
[{'{',_}|Rest2] ->
{NamedNumberList,Rest3} = parse_NamedNumberList(Rest2),
case Rest3 of
[{'}',_}|Rest4] ->
{#type{def={'BIT STRING',NamedNumberList}},Rest4};
_ ->
throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
[got,get_token(hd(Rest3)),expected,'}']}})
end;
_ ->
{#type{def={'BIT STRING',[]}},Rest}
end;
parse_BuiltinType([{'BOOLEAN',_}|Rest]) ->
{#type{def='BOOLEAN'},Rest};
%% CharacterStringType ::= RestrictedCharacterStringType |
%% UnrestrictedCharacterStringType
parse_BuiltinType([{restrictedcharacterstringtype,_,StringName}|Rest]) ->
{#type{def=StringName},Rest};
parse_BuiltinType([{'CHARACTER',_},{'STRING',_}|Rest]) ->
{#type{def='CHARACTER STRING'},Rest};
parse_BuiltinType([{'CHOICE',_},{'{',_}|Rest]) ->
{AlternativeTypeLists,Rest2} = parse_AlternativeTypeLists(Rest),
AlternativeTypeLists1 =
lists:filter(fun(#'ExtensionAdditionGroup'{}) -> false;
('ExtensionAdditionGroupEnd') -> false;
(_) -> true
end,AlternativeTypeLists),
case Rest2 of
[{'}',_}|Rest3] ->
AlternativeTypeLists2 =
case {[Ext||Ext = #'EXTENSIONMARK'{} <- AlternativeTypeLists1],
get(extensiondefault)} of
{[],'IMPLIED'} -> AlternativeTypeLists1 ++ [#'EXTENSIONMARK'{}];
_ -> AlternativeTypeLists1
end,
{#type{def={'CHOICE',AlternativeTypeLists2}},Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_BuiltinType([{'EMBEDDED',_},{'PDV',_}|Rest]) ->
{#type{def='EMBEDDED PDV'},Rest};
parse_BuiltinType([{'ENUMERATED',_},{'{',_}|Rest]) ->
{Enumerations,Rest2} = parse_Enumerations(Rest,get(extensiondefault)),
case Rest2 of
[{'}',_}|Rest3] ->
{#type{def={'ENUMERATED',Enumerations}},Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_BuiltinType([{'EXTERNAL',_}|Rest]) ->
{#type{def='EXTERNAL'},Rest};
% InstanceOfType
parse_BuiltinType([{'INSTANCE',_},{'OF',_}|Rest]) ->
{DefinedObjectClass,Rest2} = parse_DefinedObjectClass(Rest),
case Rest2 of
[{'(',_}|_] ->
{Constraint0,Rest3} = parse_Constraint(Rest2),
Constraint = merge_constraints([Constraint0]),
{#type{def={'INSTANCE OF',DefinedObjectClass,Constraint}},Rest3};
_ ->
{#type{def={'INSTANCE OF',DefinedObjectClass,[]}},Rest2}
end;
% parse_BuiltinType(Tokens) ->
parse_BuiltinType([{'INTEGER',_}|Rest]) ->
case Rest of
[{'{',_}|Rest2] ->
{NamedNumberList,Rest3} = parse_NamedNumberList(Rest2),
case Rest3 of
[{'}',_}|Rest4] ->
{#type{def={'INTEGER',NamedNumberList}},Rest4};
_ ->
throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
[got,get_token(hd(Rest3)),expected,'}']}})
end;
_ ->
{#type{def='INTEGER'},Rest}
end;
parse_BuiltinType([{'NULL',_}|Rest]) ->
{#type{def='NULL'},Rest};
% ObjectClassFieldType fix me later
parse_BuiltinType([{'OBJECT',_},{'IDENTIFIER',_}|Rest]) ->
{#type{def='OBJECT IDENTIFIER'},Rest};
parse_BuiltinType([{'OCTET',_},{'STRING',_}|Rest]) ->
{#type{def='OCTET STRING'},Rest};
parse_BuiltinType([{'REAL',_}|Rest]) ->
{#type{def='REAL'},Rest};
parse_BuiltinType([{'RELATIVE-OID',_}|Rest]) ->
{#type{def='RELATIVE-OID'},Rest};
parse_BuiltinType([{'SEQUENCE',_},{'{',_},{'}',_}|Rest]) ->
{#type{def=#'SEQUENCE'{components=[]}},
Rest};
parse_BuiltinType([{'SEQUENCE',_},{'{',_},{'...',Line},{'}',_}|Rest]) ->
{#type{def=#'SEQUENCE'{components=[#'EXTENSIONMARK'{pos = Line}]}},Rest};
parse_BuiltinType([{'SEQUENCE',_},{'{',_},{'...',Line},{'!',_}|Rest]) ->
{ExceptionIdentification,Rest2} = parse_ExceptionIdentification(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
{#type{def=#'SEQUENCE'{
components=[#'EXTENSIONMARK'{
pos = Line,
val = ExceptionIdentification}]}},
Rest3};
_ ->
{ComponentTypeLists,Rest3}=
parse_ComponentTypeLists2(Rest2,[#'EXTENSIONMARK'{pos=Line}]),
case Rest3 of
[{'}',_}|Rest4] ->
{#type{def=#'SEQUENCE'{components=ComponentTypeLists}},Rest4};
_ ->
throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
[got,get_token(hd(Rest3)),expected,'}']}})
end
% _ -> % Seq case 4,17-19,23-26 will fail here
% throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
% [got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_BuiltinType([{'SEQUENCE',_},{'{',_}|Rest]) ->
{ComponentTypeLists,Rest2} = parse_ComponentTypeLists(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
ComponentTypeLists2 =
case {[Ext||Ext = #'EXTENSIONMARK'{} <- ComponentTypeLists],
get(extensiondefault)} of
{[],'IMPLIED'} -> ComponentTypeLists ++ [#'EXTENSIONMARK'{}];
_ -> ComponentTypeLists
end,
{#type{def=#'SEQUENCE'{components = ComponentTypeLists2}},
Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_BuiltinType([{'SEQUENCE',_},{'OF',_},Id={identifier,_,_},Lt={'<',_}|Rest]) ->
%% TODO: take care of the identifier for something useful
{Type,Rest2} = parse_SelectionType([Id,Lt|Rest]),
{#type{def={'SEQUENCE OF',Type}},Rest2};
parse_BuiltinType([{'SEQUENCE',_},{'OF',_},{identifier,_,_} |Rest]) ->
%% TODO: take care of the identifier for something useful
{Type,Rest2} = parse_Type(Rest),
{#type{def={'SEQUENCE OF',Type}},Rest2};
parse_BuiltinType([{'SEQUENCE',_},{'OF',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{#type{def={'SEQUENCE OF',Type}},Rest2};
parse_BuiltinType([{'SET',_},{'{',_},{'...',Line},{'}',_}|Rest]) ->
{#type{def=#'SET'{components=[#'EXTENSIONMARK'{pos = Line}]}},Rest};
parse_BuiltinType([{'SET',_},{'{',_},{'...',Line},{'!',_}|Rest]) ->
{ExceptionIdentification,Rest2} = parse_ExceptionIdentification(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
{#type{def=#'SET'{components=
[#'EXTENSIONMARK'{pos = Line,
val = ExceptionIdentification}]}},
Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_BuiltinType([{'SET',_},{'{',_}|Rest]) ->
{ComponentTypeLists,Rest2} = parse_ComponentTypeLists(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
ComponentTypeLists2 =
case {[Ext||Ext = #'EXTENSIONMARK'{} <- ComponentTypeLists],
get(extensiondefault)} of
{[],'IMPLIED'} -> ComponentTypeLists ++ [#'EXTENSIONMARK'{}];
_ -> ComponentTypeLists
end,
{#type{def=#'SET'{components = ComponentTypeLists2}},
Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_BuiltinType([{'SET',_},{'OF',_},Id={identifier,_,_},Lt={'<',_}|Rest]) ->
%% TODO: take care of the identifier for something useful
{Type,Rest2} = parse_SelectionType([Id,Lt|Rest]),
{#type{def={'SET OF',Type}},Rest2};
parse_BuiltinType([{'SET',_},{'OF',_},{identifier,_,_}|Rest]) ->
%%TODO: take care of the identifier for something useful
{Type,Rest2} = parse_Type(Rest),
{#type{def={'SET OF',Type}},Rest2};
parse_BuiltinType([{'SET',_},{'OF',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{#type{def={'SET OF',Type}},Rest2};
%% The so called Useful types
parse_BuiltinType([{'GeneralizedTime',_}|Rest]) ->
{#type{def='GeneralizedTime'},Rest};
parse_BuiltinType([{'UTCTime',_}|Rest]) ->
{#type{def='UTCTime'},Rest};
parse_BuiltinType([{'ObjectDescriptor',_}|Rest]) ->
{#type{def='ObjectDescriptor'},Rest};
%% For compatibility with old standard
parse_BuiltinType([{'ANY',_},{'DEFINED',_},{'BY',_},{identifier,_,Id}|Rest]) ->
{#type{def={'ANY_DEFINED_BY',Id}},Rest};
parse_BuiltinType([{'ANY',_}|Rest]) ->
{#type{def='ANY'},Rest};
parse_BuiltinType(Tokens) ->
parse_ObjectClassFieldType(Tokens).
% throw({asn1_error,unhandled_type}).
parse_TypeWithConstraint([{'SEQUENCE',_},Lpar = {'(',_}|Rest]) ->
{Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
Rest4 = case Rest2 of
[{'OF',_}, {identifier,_,_Id}|Rest3] ->
%%% TODO: make some use of the identifier, maybe useful in the XML mapping
Rest3;
[{'OF',_}|Rest3] ->
Rest3;
_ ->
throw({asn1_error,
{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'OF']}})
end,
{Type,Rest5} = parse_Type(Rest4),
{#type{def = {'SEQUENCE OF',Type},
constraint = merge_constraints([Constraint])},Rest5};
parse_TypeWithConstraint([{'SEQUENCE',_},{'SIZE',_},Lpar = {'(',_}|Rest]) ->
{Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
#constraint{c=C} = Constraint,
Constraint2 = Constraint#constraint{c={element_set,{'SizeConstraint',C},
none}},
Rest4 = case Rest2 of
[{'OF',_}, {identifier,_,_Id}|Rest3] ->
%%% TODO: make some use of the identifier, maybe useful in the XML mapping
Rest3;
[{'OF',_}|Rest3] ->
Rest3;
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'OF']}})
end,
{Type,Rest5} = parse_Type(Rest4),
{#type{def = {'SEQUENCE OF',Type}, constraint = merge_constraints([Constraint2])},Rest5};
parse_TypeWithConstraint([{'SET',_},Lpar = {'(',_}|Rest]) ->
{Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
Rest4 = case Rest2 of
[{'OF',_}, {identifier,_,_Id}|Rest3] ->
%%% TODO: make some use of the identifier, maybe useful in the XML mapping
Rest3;
[{'OF',_}|Rest3] ->
Rest3;
_ ->
throw({asn1_error,
{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'OF']}})
end,
{Type,Rest5} = parse_Type(Rest4),
{#type{def = {'SET OF',Type},
constraint = merge_constraints([Constraint])},Rest5};
parse_TypeWithConstraint([{'SET',_},{'SIZE',_},Lpar = {'(',_}|Rest]) ->
{Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
#constraint{c=C} = Constraint,
Constraint2 = Constraint#constraint{c={element_set,
{'SizeConstraint',C},none}},
Rest4 = case Rest2 of
[{'OF',_}, {identifier,_,_Id}|Rest3] ->
%%% TODO: make some use of the identifier, maybe useful in the XML mapping
Rest3;
[{'OF',_}|Rest3] ->
Rest3;
_ ->
throw({asn1_error,
{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'OF']}})
end,
{Type,Rest5} = parse_Type(Rest4),
{#type{def = {'SET OF',Type},
constraint = merge_constraints([Constraint2])},Rest5};
parse_TypeWithConstraint(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
['SEQUENCE','SEQUENCE SIZE','SET','SET SIZE'],
followed,by,a,constraint]}}).
%% --------------------------
parse_ReferencedType(Tokens) ->
Flist = [fun parse_DefinedType/1,
fun parse_SelectionType/1,
fun parse_TypeFromObject/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_DefinedType(Tokens=[{typereference,_,_},{'{',_}|_Rest]) ->
parse_ParameterizedType(Tokens);
parse_DefinedType(Tokens=[{typereference,L1,TypeName},
T2={typereference,_,_},T3={'{',_}|Rest]) ->
case (catch parse_ParameterizedType(Tokens)) of
{'EXIT',_Reason} ->
Rest2 = [T2,T3|Rest],
{#type{def = #'Externaltypereference'{pos=L1,
module=resolve_module(TypeName),
type=TypeName}},Rest2};
{asn1_error,_} ->
Rest2 = [T2,T3|Rest],
{#type{def = #'Externaltypereference'{pos=L1,
module=resolve_module(TypeName),
type=TypeName}},Rest2};
Result ->
Result
end;
parse_DefinedType(Tokens=[{typereference,_L1,_Module},{'.',_},
{typereference,_,_TypeName},{'{',_}|_Rest]) ->
parse_ParameterizedType(Tokens);
parse_DefinedType([{typereference,L1,Module},{'.',_},{typereference,_,TypeName}|Rest]) ->
{#type{def = #'Externaltypereference'{pos=L1,module=Module,type=TypeName}},Rest};
parse_DefinedType([{typereference,L1,TypeName}|Rest]) ->
{#type{def = #'Externaltypereference'{pos=L1,module=resolve_module(TypeName),
type=TypeName}},Rest};
parse_DefinedType(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[typereference,'typereference.typereference',
'typereference typereference']]}}).
parse_SelectionType([{identifier,_,Name},{'<',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{#type{def={'SelectionType',Name,Type}},Rest2};
parse_SelectionType(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'identifier <']}}).
resolve_module(Type) ->
Current = get(asn1_module),
Imports = get({Current, imports}),
resolve_module(Type, Current, Imports).
resolve_module(_Type, Current, undefined) ->
Current;
resolve_module(Type, Current, Imports) ->
case [Mod || #'SymbolsFromModule'{symbols = S, module = Mod} <- Imports,
#'Externaltypereference'{type = T} <- S,
Type == T] of
[#'Externaltypereference'{type = Mod}|_] -> Mod;
%% This allows the same symbol to be imported several times
%% which ought to be checked elsewhere and flagged as an error
[] -> Current
end.
%% --------------------------
%% This should probably be removed very soon
% parse_ConstrainedType(Tokens) ->
% case (catch parse_TypeWithConstraint(Tokens)) of
% {'EXIT',Reason} ->
% {Type,Rest} = parse_Type(Tokens),
% {Constraint,Rest2} = parse_Constraint(Rest),
% {Type#type{constraint=Constraint},Rest2};
% {asn1_error,Reason2} ->
% {Type,Rest} = parse_Type(Tokens),
% {Constraint,Rest2} = parse_Constraint(Rest),
% {Type#type{constraint=Constraint},Rest2};
% Result ->
% Result
% end.
parse_Constraints(Tokens) ->
parse_Constraints(Tokens,[]).
parse_Constraints(Tokens,Acc) ->
{Constraint,Rest} = parse_Constraint(Tokens),
case Rest of
[{'(',_}|_Rest2] ->
parse_Constraints(Rest,[Constraint|Acc]);
_ ->
{lists:reverse([Constraint|Acc]),Rest}
end.
parse_Constraint([{'(',_}|Rest]) ->
{Constraint,Rest2} = parse_ConstraintSpec(Rest),
{Exception,Rest3} = parse_ExceptionSpec(Rest2),
case Rest3 of
[{')',_}|Rest4] ->
{#constraint{c=Constraint,e=Exception},Rest4};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,')']}})
end;
parse_Constraint(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'(']}}).
parse_ConstraintSpec(Tokens) ->
Flist = [fun parse_GeneralConstraint/1,
fun parse_SubtypeConstraint/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
{asn1_error,Reason2} ->
throw({asn1_error,Reason2});
Result ->
Result
end.
parse_ExceptionSpec([LPar={')',_}|Rest]) ->
{undefined,[LPar|Rest]};
parse_ExceptionSpec([{'!',_}|Rest]) ->
parse_ExceptionIdentification(Rest);
parse_ExceptionSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,[')','!']]}}).
parse_ExceptionIdentification(Tokens) ->
Flist = [fun parse_SignedNumber/1,
fun parse_DefinedValue/1,
fun parse_TypeColonValue/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
{asn1_error,Reason2} ->
throw({asn1_error,Reason2});
Result ->
Result
end.
parse_TypeColonValue(Tokens) ->
{Type,Rest} = parse_Type(Tokens),
case Rest of
[{':',_}|Rest2] ->
{Value,Rest3} = parse_Value(Rest2),
{{Type,Value},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,':']}})
end.
parse_SubtypeConstraint(Tokens) ->
parse_ElementSetSpecs(Tokens).
parse_ElementSetSpecs(Tokens) ->
{RootElems,Rest} = parse_ElementSetSpec(Tokens),
case Rest of
[{',',_},{'...',_},{',',_}|Rest2] ->
{AdditionalElems,Rest3} = parse_ElementSetSpec(Rest2),
{{element_set,RootElems,AdditionalElems},Rest3};
[{',',_},{'...',_}|Rest2] ->
{{element_set,RootElems,empty},Rest2};
_ ->
{{element_set,RootElems,none},Rest}
end.
parse_ElementSetSpec([{'ALL',_},{'EXCEPT',_}|Rest]) ->
{Exclusions,Rest2} = parse_Elements(Rest),
{{'ALL-EXCEPT',Exclusions},Rest2};
parse_ElementSetSpec(Tokens) ->
parse_Unions(Tokens).
%% parse_Unions(Tokens) -> {Ret,Rest}
%% Tokens = [Tok]
%% Tok = tuple()
%% Ret = {'SingleValue',list()} | list() |
%%
parse_Unions(Tokens) ->
{InterSec,Rest} = parse_Intersections(Tokens),
{Unions,Rest2} = parse_UnionsRec(Rest),
case {InterSec,Unions} of
{InterSec,[]} ->
{InterSec,Rest2};
{V1,V2} ->
{{union,V1,V2},Rest2}
end.
parse_UnionsRec([{'|',_}|Rest]) ->
{InterSec,Rest2} = parse_Intersections(Rest),
{URec,Rest3} = parse_UnionsRec(Rest2),
case {InterSec,URec} of
{V1,[]} ->
{V1,Rest3};
{V1,V2} ->
{{union,V1,V2},Rest3}
end;
parse_UnionsRec([{'UNION',Info}|Rest]) ->
parse_UnionsRec([{'|',Info}|Rest]);
parse_UnionsRec(Tokens) ->
{[],Tokens}.
parse_Intersections(Tokens) ->
{InterSec,Rest} = parse_IntersectionElements(Tokens),
{IRec,Rest2} = parse_IElemsRec(Rest),
case {InterSec,IRec} of
{V1,[]} ->
{V1,Rest2};
{V1,V2} ->
{{intersection,V1,V2},Rest2}
end.
%% parse_IElemsRec(Tokens) -> Result
%% Result ::= {'SingleValue',ordered_set()} | list()
parse_IElemsRec([{'^',_}|Rest]) ->
{InterSec,Rest2} = parse_IntersectionElements(Rest),
{IRec,Rest3} = parse_IElemsRec(Rest2),
case {InterSec,IRec} of
{V1,[]} ->
{V1,Rest2};
{V1,V2} ->
{{intersection,V1,V2},Rest3}
end;
parse_IElemsRec([{'INTERSECTION',Info}|Rest]) ->
parse_IElemsRec([{'^',Info}|Rest]);
parse_IElemsRec(Tokens) ->
{[],Tokens}.
%% parse_IntersectionElements(Tokens) -> {Result,Rest}
%% Result ::= InterSec | {InterSec,{'EXCEPT',Exclusion}}
%% InterSec ::= {'ALL',{'EXCEPT',Exclusions}} | Unions
%% Unions ::= {'SingleValue',list()} | list() (see parse_Unions)
%% Exclusions ::= InterSec
parse_IntersectionElements(Tokens) ->
{InterSec,Rest} = parse_Elements(Tokens),
case Rest of
[{'EXCEPT',_}|Rest2] ->
{Exclusion,Rest3} = parse_Elements(Rest2),
{{'EXCEPT',InterSec,Exclusion},Rest3};
Rest ->
{InterSec,Rest}
end.
%% parse_Elements(Tokens) -> {Result,Rest}
%% Result ::= {'ALL',{'EXCEPT',Exclusions}} | Unions
%% Exclusions ::= {'ALL',{'EXCEPT',Exclusions}} | Unions
%% Unions ::= {'SingleValue',list()} | list() (see parse_Unions)
parse_Elements([{'(',_}|Rest]) ->
{Elems,Rest2} = parse_ElementSetSpec(Rest),
case Rest2 of
[{')',_}|Rest3] ->
{Elems,Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,')']}})
end;
parse_Elements(Tokens) ->
Flist = [fun parse_ObjectSetElements/1,
fun parse_SubtypeElements/1,
% fun parse_Value/1,
% fun parse_Type/1,
fun parse_Object/1,
fun parse_DefinedObjectSet/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
Err = {asn1_error,_} ->
throw(Err);
Result = {Val,_} when is_record(Val,type) ->
Result;
Result ->
Result
end.
%% --------------------------
parse_DefinedObjectClass([{typereference,_,_ModName},{'.',_},Tr={typereference,_,_ObjClName}|Rest]) ->
%% {{objectclassname,ModName,ObjClName},Rest};
% {{objectclassname,tref2Exttref(Tr)},Rest};
{tref2Exttref(Tr),Rest};
parse_DefinedObjectClass([Tr={typereference,_,_ObjClName}|Rest]) ->
% {{objectclassname,tref2Exttref(Tr)},Rest};
{tref2Exttref(Tr),Rest};
parse_DefinedObjectClass(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
['typereference . typereference',
typereference,
'TYPE-IDENTIFIER',
'ABSTRACT-SYNTAX']]}}).
parse_ObjectClassAssignment([{typereference,L1,ObjClName},{'::=',_}|Rest]) ->
{Type,Rest2} = parse_ObjectClass(Rest),
{#classdef{pos=L1,name=ObjClName,module=resolve_module(Type),
typespec=Type},Rest2};
parse_ObjectClassAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
'typereference ::=']}}).
parse_ObjectClass(Tokens) ->
Flist = [fun parse_DefinedObjectClass/1,
fun parse_ObjectClassDefn/1,
fun parse_ParameterizedObjectClass/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
{asn1_error,Reason2} ->
throw({asn1_error,Reason2});
Result ->
Result
end.
parse_ObjectClassDefn([{'CLASS',_},{'{',_}|Rest]) ->
{Type,Rest2} = parse_FieldSpec(Rest),
{WithSyntaxSpec,Rest3} = parse_WithSyntaxSpec(Rest2),
{#objectclass{fields=Type,syntax=WithSyntaxSpec},Rest3};
parse_ObjectClassDefn(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'CLASS {']}}).
parse_FieldSpec(Tokens) ->
parse_FieldSpec(Tokens,[]).
parse_FieldSpec(Tokens,Acc) ->
Flist = [fun parse_FixedTypeValueFieldSpec/1,
fun parse_VariableTypeValueFieldSpec/1,
fun parse_ObjectFieldSpec/1,
fun parse_FixedTypeValueSetFieldSpec/1,
fun parse_VariableTypeValueSetFieldSpec/1,
fun parse_TypeFieldSpec/1,
fun parse_ObjectSetFieldSpec/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
{Type,[{'}',_}|Rest]} ->
{lists:reverse([Type|Acc]),Rest};
{Type,[{',',_}|Rest2]} ->
parse_FieldSpec(Rest2,[Type|Acc]);
{_,[H|_T]} ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'}']}})
end.
parse_PrimitiveFieldName([{typefieldreference,_,FieldName}|Rest]) ->
{{typefieldreference,FieldName},Rest};
parse_PrimitiveFieldName([{valuefieldreference,_,FieldName}|Rest]) ->
{{valuefieldreference,FieldName},Rest};
parse_PrimitiveFieldName(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[typefieldreference,valuefieldreference]]}}).
parse_FieldName(Tokens) ->
{Field,Rest} = parse_PrimitiveFieldName(Tokens),
parse_FieldName(Rest,[Field]).
parse_FieldName([{'.',_}|Rest],Acc) ->
case (catch parse_PrimitiveFieldName(Rest)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
{FieldName,Rest2} ->
parse_FieldName(Rest2,[FieldName|Acc])
end;
parse_FieldName(Tokens,Acc) ->
{lists:reverse(Acc),Tokens}.
parse_FixedTypeValueFieldSpec([{valuefieldreference,L1,VFieldName}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{Unique,Rest3} =
case Rest2 of
[{'UNIQUE',_}|Rest4] ->
{'UNIQUE',Rest4};
_ ->
{undefined,Rest2}
end,
{OptionalitySpec,Rest5} = parse_ValueOptionalitySpec(Rest3),
case {Unique,Rest5} of
{'UNIQUE',[{Del,_}|_]} when Del =:= ','; Del =:= '}' ->
{{fixedtypevaluefield,VFieldName,Type,Unique,
OptionalitySpec},Rest5};
{_,[{Del,_}|_]} when Del =:= ','; Del =:= '}' ->
{{object_or_fixedtypevalue_field,VFieldName,Type,Unique,OptionalitySpec},Rest5};
_ ->
throw({asn1_error,{L1,get(asn1_module),
[got,get_token(hd(Rest5)),expected,[',','}']]}})
end;
parse_FixedTypeValueFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,valuefieldreference]}}).
parse_VariableTypeValueFieldSpec([{valuefieldreference,L,VFieldName}|Rest]) ->
{FieldRef,Rest2} = parse_FieldName(Rest),
{OptionalitySpec,Rest3} = parse_ValueOptionalitySpec(Rest2),
case Rest3 of
[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
{{variabletypevaluefield,VFieldName,FieldRef,OptionalitySpec},Rest3};
_ ->
throw({asn1_error,{L,get(asn1_module),
[got,get_token(hd(Rest3)),expected,[',','}']]}})
end;
parse_VariableTypeValueFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,valuefieldreference]}}).
parse_ObjectFieldSpec([{valuefieldreference,L,VFieldName}|Rest]) ->
{Class,Rest2} = parse_DefinedObjectClass(Rest),
{OptionalitySpec,Rest3} = parse_ObjectOptionalitySpec(Rest2),
case Rest3 of
[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
{{objectfield,VFieldName,Class,undefined,OptionalitySpec},Rest3};
_ ->
throw({asn1_error,{L,get(asn1_module),
[got,get_token(hd(Rest3)),expected,[',','}']]}})
end;
parse_ObjectFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,valuefieldreference]}}).
parse_TypeFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
{OptionalitySpec,Rest2} = parse_TypeOptionalitySpec(Rest),
case Rest2 of
[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
{{typefield,TFieldName,OptionalitySpec},Rest2};
_ ->
throw({asn1_error,{L,get(asn1_module),
[got,get_token(hd(Rest2)),expected,[',','}']]}})
end;
parse_TypeFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,typefieldreference]}}).
parse_FixedTypeValueSetFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{OptionalitySpec,Rest3} = parse_ValueSetOptionalitySpec(Rest2),
case Rest3 of
[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
{{objectset_or_fixedtypevalueset_field,TFieldName,Type,
OptionalitySpec},Rest3};
_ ->
throw({asn1_error,{L,get(asn1_module),
[got,get_token(hd(Rest3)),expected,[',','}']]}})
end;
parse_FixedTypeValueSetFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,typefieldreference]}}).
parse_VariableTypeValueSetFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
{FieldRef,Rest2} = parse_FieldName(Rest),
{OptionalitySpec,Rest3} = parse_ValueSetOptionalitySpec(Rest2),
case Rest3 of
[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
{{variabletypevaluesetfield,TFieldName,FieldRef,OptionalitySpec},Rest3};
_ ->
throw({asn1_error,{L,get(asn1_module),
[got,get_token(hd(Rest3)),expected,[',','}']]}})
end;
parse_VariableTypeValueSetFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,typefieldreference]}}).
parse_ObjectSetFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
{Class,Rest2} = parse_DefinedObjectClass(Rest),
{OptionalitySpec,Rest3} = parse_ObjectSetOptionalitySpec(Rest2),
case Rest3 of
[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
{{objectsetfield,TFieldName,Class,OptionalitySpec},Rest3};
_ ->
throw({asn1_error,{L,get(asn1_module),
[got,get_token(hd(Rest3)),expected,[',','}']]}})
end;
parse_ObjectSetFieldSpec(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,typefieldreference]}}).
parse_ValueOptionalitySpec(Tokens)->
case Tokens of
[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
[{'DEFAULT',_}|Rest] ->
{Value,Rest2} = parse_Value(Rest),
{{'DEFAULT',Value},Rest2};
_ -> {'MANDATORY',Tokens}
end.
parse_ObjectOptionalitySpec(Tokens) ->
case Tokens of
[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
[{'DEFAULT',_}|Rest] ->
{Object,Rest2} = parse_Object(Rest),
{{'DEFAULT',Object},Rest2};
_ -> {'MANDATORY',Tokens}
end.
parse_TypeOptionalitySpec(Tokens) ->
case Tokens of
[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
[{'DEFAULT',_}|Rest] ->
{Type,Rest2} = parse_Type(Rest),
{{'DEFAULT',Type},Rest2};
_ -> {'MANDATORY',Tokens}
end.
parse_ValueSetOptionalitySpec(Tokens) ->
case Tokens of
[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
[{'DEFAULT',_}|Rest] ->
{ValueSet,Rest2} = parse_ValueSet(Rest),
{{'DEFAULT',ValueSet},Rest2};
_ -> {'MANDATORY',Tokens}
end.
parse_ObjectSetOptionalitySpec(Tokens) ->
case Tokens of
[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
[{'DEFAULT',_}|Rest] ->
{ObjectSet,Rest2} = parse_ObjectSet(Rest),
{{'DEFAULT',ObjectSet},Rest2};
_ -> {'MANDATORY',Tokens}
end.
parse_WithSyntaxSpec([{'WITH',_},{'SYNTAX',_}|Rest]) ->
{SyntaxList,Rest2} = parse_SyntaxList(Rest),
{{'WITH SYNTAX',SyntaxList},Rest2};
parse_WithSyntaxSpec(Tokens) ->
{[],Tokens}.
parse_SyntaxList([{'{',_},{'}',_}|Rest]) ->
{[],Rest};
parse_SyntaxList([{'{',_}|Rest]) ->
parse_SyntaxList(Rest,[]);
parse_SyntaxList(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,['{}','{']]}}).
parse_SyntaxList(Tokens,Acc) ->
{SyntaxList,Rest} = parse_TokenOrGroupSpec(Tokens),
case Rest of
[{'}',_}|Rest2] ->
{lists:reverse([SyntaxList|Acc]),Rest2};
_ ->
parse_SyntaxList(Rest,[SyntaxList|Acc])
end.
parse_TokenOrGroupSpec(Tokens) ->
Flist = [fun parse_RequiredToken/1,
fun parse_OptionalGroup/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_RequiredToken([{typereference,L1,WordName}|Rest]) ->
case is_word(WordName) of
false ->
throw({asn1_error,{L1,get(asn1_module),
[got,WordName,expected,a,'Word']}});
true ->
{WordName,Rest}
end;
parse_RequiredToken([{',',L1}|Rest]) ->
{{',',L1},Rest};
parse_RequiredToken([{WordName,L1}|Rest]) ->
case is_word(WordName) of
false ->
throw({asn1_error,{L1,get(asn1_module),
[got,WordName,expected,a,'Word']}});
true ->
{WordName,Rest}
end;
parse_RequiredToken(Tokens) ->
parse_PrimitiveFieldName(Tokens).
parse_OptionalGroup([{'[',_}|Rest]) ->
{Spec,Rest2} = parse_TokenOrGroupSpec(Rest),
{SpecList,Rest3} = parse_OptionalGroup(Rest2,[Spec]),
{SpecList,Rest3}.
parse_OptionalGroup([{']',_}|Rest],Acc) ->
{lists:reverse(Acc),Rest};
parse_OptionalGroup(Tokens,Acc) ->
{Spec,Rest} = parse_TokenOrGroupSpec(Tokens),
parse_OptionalGroup(Rest,[Spec|Acc]).
parse_DefinedObject([Id={identifier,_,_ObjName}|Rest]) ->
{{object,identifier2Extvalueref(Id)},Rest};
parse_DefinedObject([{typereference,L1,ModName},{'.',_},{identifier,_,ObjName}|Rest]) ->
{{object, #'Externaltypereference'{pos=L1,module=ModName,type=ObjName}},Rest};
parse_DefinedObject(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[identifier,'typereference.identifier']]}}).
parse_ObjectAssignment([{identifier,L1,ObjName}|Rest]) ->
{Class,Rest2} = parse_DefinedObjectClass(Rest),
case Rest2 of
[{'::=',_}|Rest3] ->
{Object,Rest4} = parse_Object(Rest3),
{#typedef{pos=L1,name=ObjName,
typespec=#'Object'{classname=Class,def=Object}},Rest4};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}});
Other ->
throw({asn1_error,{L1,get(asn1_module),
[got,Other,expected,'::=']}})
end;
parse_ObjectAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
%% parse_Object(Tokens) -> Ret
%% Tokens = [Tok]
%% Tok = tuple()
%% Ret = {object,_} | {object, _, _}
parse_Object(Tokens) ->
Flist=[fun parse_ObjectDefn/1,
fun parse_ObjectFromObject/1,
fun parse_ParameterizedObject/1,
fun parse_DefinedObject/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_ObjectDefn(Tokens) ->
Flist=[fun parse_DefaultSyntax/1,
fun parse_DefinedSyntax/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_DefaultSyntax([{'{',_},{'}',_}|Rest]) ->
{{object,defaultsyntax,[]},Rest};
parse_DefaultSyntax([{'{',_}|Rest]) ->
parse_DefaultSyntax(Rest,[]);
parse_DefaultSyntax(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,['{}','{']]}}).
parse_DefaultSyntax(Tokens,Acc) ->
{Setting,Rest} = parse_FieldSetting(Tokens),
case Rest of
[{',',_}|Rest2] ->
parse_DefaultSyntax(Rest2,[Setting|Acc]);
[{'}',_}|Rest3] ->
{{object,defaultsyntax,lists:reverse([Setting|Acc])},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,[',','}']]}})
end.
parse_FieldSetting(Tokens) ->
{{_,PrimFieldName},Rest} = parse_PrimitiveFieldName(Tokens),
{Setting,Rest2} = parse_Setting(Rest),
{{PrimFieldName,Setting},Rest2}.
parse_DefinedSyntax([{'{',_}|Rest]) ->
parse_DefinedSyntax(Rest,[]).
parse_DefinedSyntax(Tokens,Acc) ->
case Tokens of
[{'}',_}|Rest2] ->
{{object,definedsyntax,lists:reverse(Acc)},Rest2};
_ ->
{DefSynTok,Rest3} = parse_DefinedSyntaxToken(Tokens),
parse_DefinedSyntax(Rest3,[DefSynTok|Acc])
end.
%% DefinedSyntaxToken ::= Literal | Setting
%% Literal ::= word | ','
%% Setting ::= Type | Value | ValueSet | Object | ObjectSet
%% word equals typereference, but no lower cases
parse_DefinedSyntaxToken([{',',L1}|Rest]) ->
{{',',L1},Rest};
%% ObjectClassFieldType or a defined type with a constraint.
%% Should also be able to parse a parameterized type. It may be
%% impossible to distinguish between a parameterized type and a Literal
%% followed by an object set.
parse_DefinedSyntaxToken(Tokens=[{typereference,L1,_Name},{T,_}|_Rest])
when T == '.'; T == '(' ->
case catch parse_Setting(Tokens) of
{asn1_error,_} ->
throw({asn1_error,{L1,get(asn1_module),
[got,hd(Tokens), expected,['Word',setting]]}});
{'EXIT',Reason} ->
exit(Reason);
Result ->
Result
end;
parse_DefinedSyntaxToken(Tokens=[TRef={typereference,L1,Name}|Rest]) ->
case is_word(Name) of
false ->
case lookahead_definedsyntax(Rest) of
word_or_setting ->
{{setting,L1,tref2Exttref(TRef)},Rest};
_ ->
parse_Setting(Tokens)
end;
true ->
%% {{word_or_setting,L1,Name},Rest}
{{word_or_setting,L1,tref2Exttref(TRef)},Rest}
end;
parse_DefinedSyntaxToken(Tokens) ->
case catch parse_Setting(Tokens) of
{asn1_error,_} ->
parse_Word(Tokens);
{'EXIT',Reason} ->
exit(Reason);
Result ->
Result
end.
lookahead_definedsyntax([{typereference,_,Name}|_Rest]) ->
case is_word(Name) of
true -> word_or_setting;
_ -> setting
end;
lookahead_definedsyntax([{'}',_}|_Rest]) ->
word_or_setting;
lookahead_definedsyntax(_) ->
setting.
parse_Word([{Name,Pos}|Rest]) ->
case is_word(Name) of
false ->
throw({asn1_error,{Pos,get(asn1_module),
[got,Name, expected,a,'Word']}});
true ->
{{word_or_setting,Pos,tref2Exttref(Pos,Name)},Rest}
end.
parse_Setting(Tokens) ->
Flist = [{type_tag,fun parse_Type/1},
{value_tag,fun parse_Value/1},
{object_tag,fun parse_Object/1},
{objectset_tag,fun parse_ObjectSet/1}],
case (catch parse_or_tag(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result = {{value_tag,_},_} ->
Result;
{{Tag,Setting},Rest} when is_atom(Tag) ->
{Setting,Rest}
end.
%% parse_Setting(Tokens) ->
%% Flist = [fun parse_Type/1,
%% fun parse_Value/1,
%% fun parse_Object/1,
%% fun parse_ObjectSet/1],
%% case (catch parse_or(Tokens,Flist)) of
%% {'EXIT',Reason} ->
%% exit(Reason);
%% AsnErr = {asn1_error,_} ->
%% throw(AsnErr);
%% Result ->
%% Result
%% end.
parse_DefinedObjectSet([{typereference,L1,ModuleName},{'.',_},
{typereference,L2,ObjSetName}|Rest]) ->
{{objectset,L1,#'Externaltypereference'{pos=L2,module=ModuleName,
type=ObjSetName}},Rest};
parse_DefinedObjectSet([{typereference,L1,ObjSetName}|Rest]) ->
{{objectset,L1,#'Externaltypereference'{pos=L1,module=resolve_module(ObjSetName),
type=ObjSetName}},Rest};
parse_DefinedObjectSet(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[typereference,'typereference.typereference']]}}).
parse_ObjectSetAssignment([{typereference,L1,ObjSetName}|Rest]) ->
{Class,Rest2} = parse_DefinedObjectClass(Rest),
case Rest2 of
[{'::=',_}|Rest3] ->
{ObjectSet,Rest4} = parse_ObjectSet(Rest3),
{#typedef{pos=L1,name=ObjSetName,
typespec=#'ObjectSet'{class=Class,
set=ObjectSet}},Rest4};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
%%% Other ->
%%% throw(Other)
end;
parse_ObjectSetAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
typereference]}}).
%% parse_ObjectSet(Tokens) -> {Ret,Rest}
%% Tokens = [Tok]
%% Tok = tuple()
%% Ret = {[],tuple()} |
%% {list(),list()} |
%% list() |
%% ['EXTENSIONMARK'] |
%% {'ALL',{'EXCEPT',Exclusions}} |
%% {'SingleValue',SV}
%% SV = list() | #'Externalvaluereference'{} | {definedvalue,term()}
parse_ObjectSet([{'{',_}|Rest]) ->
{ObjSetSpec,Rest2} = parse_ObjectSetSpec(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
{ObjSetSpec,Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'}']}})
end;
parse_ObjectSet(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_ObjectSetSpec([{'...',_},{',',_}|Tokens0]) ->
{Elements,Tokens} = parse_ElementSetSpec(Tokens0),
{{element_set,empty,Elements},Tokens};
parse_ObjectSetSpec([{'...',_}|Tokens]) ->
{{element_set,empty,empty},Tokens};
parse_ObjectSetSpec(Tokens) ->
parse_ElementSetSpecs(Tokens).
% moved fun parse_Object/1 and fun parse_DefinedObjectSet/1 to parse_Elements
%% parse_ObjectSetElements(Tokens) -> {Result,Rest}
%% Result ::= {'ObjectSetFromObjects',Objects,Name} | {pos,ObjectSet,Params}
%% Objects ::= ReferencedObjects
%% ReferencedObjects ::= (see parse_ReferencedObjects/1)
%% Name ::= [FieldName]
%% FieldName ::= {typefieldreference,atom()} | {valuefieldreference,atom()}
%% ObjectSet ::= {objectset,integer(),#'Externaltypereference'{}}
%% Params ::= list() (see parse_ActualParameterList/1)
parse_ObjectSetElements(Tokens) ->
Flist = [%fun parse_Object/1,
%fun parse_DefinedObjectSet/1,
fun parse_ObjectSetFromObjects/1,
fun parse_ParameterizedObjectSet/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_ObjectClassFieldType(Tokens) ->
{Class,Rest} = parse_DefinedObjectClass(Tokens),
case Rest of
[{'.',_}|Rest2] ->
{FieldName,Rest3} = parse_FieldName(Rest2),
OCFT = #'ObjectClassFieldType'{
classname=Class,
class=Class,fieldname=FieldName},
{#type{def=OCFT},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'.']}})
%%% Other ->
%%% throw(Other)
end.
%parse_ObjectClassFieldValue(Tokens) ->
% Flist = [fun parse_OpenTypeFieldVal/1,
% fun parse_FixedTypeFieldVal/1],
% case (catch parse_or(Tokens,Flist)) of
% {'EXIT',Reason} ->
% throw(Reason);
% AsnErr = {asn1_error,_} ->
% throw(AsnErr);
% Result ->
% Result
% end.
parse_ObjectClassFieldValue(Tokens) ->
parse_OpenTypeFieldVal(Tokens).
parse_OpenTypeFieldVal(Tokens) ->
{Type,Rest} = parse_Type(Tokens),
case Rest of
[{':',_}|Rest2] ->
{Value,Rest3} = parse_Value(Rest2),
{{opentypefieldvalue,Type,Value},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,':']}})
end.
% parse_FixedTypeFieldVal(Tokens) ->
% parse_Value(Tokens).
% parse_InformationFromObjects(Tokens) ->
% Flist = [fun parse_ValueFromObject/1,
% fun parse_ValueSetFromObjects/1,
% fun parse_TypeFromObject/1,
% fun parse_ObjectFromObject/1],
% case (catch parse_or(Tokens,Flist)) of
% {'EXIT',Reason} ->
% throw(Reason);
% AsnErr = {asn1_error,_} ->
% throw(AsnErr);
% Result ->
% Result
% end.
%% parse_ReferencedObjects(Tokens) -> {Result,Rest}
%% Result ::= DefObject | DefObjSet |
%% {po,DefObject,Params} | {pos,DefObjSet,Params} |
%%
%% DefObject ::= {object,#'Externaltypereference'{}} |
%% {object,#'Externalvaluereference'{}}
%% DefObjSet ::= {objectset,integer(),#'Externaltypereference'{}}
%% Params ::= list()
parse_ReferencedObjects(Tokens) ->
Flist = [fun parse_DefinedObject/1,
fun parse_DefinedObjectSet/1,
fun parse_ParameterizedObject/1,
fun parse_ParameterizedObjectSet/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_ValueFromObject(Tokens) ->
{Objects,Rest} = parse_ReferencedObjects(Tokens),
case Rest of
[{'.',_}|Rest2] ->
{Name,Rest3} = parse_FieldName(Rest2),
case lists:last(Name) of
{valuefieldreference,_} ->
{{'ValueFromObject',Objects,Name},Rest3};
_ ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,typefieldreference,expected,
valuefieldreference]}})
end;
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'.']}})
%%% Other ->
%%% throw({asn1_error,{got,Other,expected,'.'}})
end.
parse_TypeFromObject(Tokens) ->
{Objects,Rest} = parse_ReferencedObjects(Tokens),
case Rest of
[{'.',_}|Rest2] ->
{Name,Rest3} = parse_FieldName(Rest2),
case lists:last(Name) of
{typefieldreference,_FieldName} ->
{#type{def={'TypeFromObject',Objects,Name}},Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,
typefieldreference]}})
end;
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'.']}})
%%% Other ->
%%% throw({asn1_error,{got,Other,expected,'.'}})
end.
parse_ObjectFromObject(Tokens) ->
{Objects,Rest} = parse_ReferencedObjects(Tokens),
case Rest of
[{'.',_}|Rest2] ->
{Name,Rest3} = parse_FieldName(Rest2),
{{'ObjectFromObject',Objects,Name},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'.']}})
end.
%% parse_ObjectSetFromObjects(Tokens) -> {Result,Rest}
%% Result ::= {'ObjectSetFromObjects',Objects,Name}
%% Objects ::= ReferencedObject (see parse_ReferencedObjects/1)
%% Name ::= [FieldName]
%% FieldName ::= {typefieldreference,atom()} |
%% {valuefieldreference,atom()}
parse_ObjectSetFromObjects(Tokens) ->
{Objects,Rest} = parse_ReferencedObjects(Tokens),
case Rest of
[{'.',_}|Rest2] ->
{Name,Rest3} = parse_FieldName(Rest2),
case lists:last(Name) of
{typefieldreference,_FieldName} ->
{{'ObjectSetFromObjects',Objects,Name},Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,
typefieldreference]}})
end;
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'.']}})
end.
% parse_InstanceOfType([{'INSTANCE',_},{'OF',_}|Rest]) ->
% {Class,Rest2} = parse_DefinedObjectClass(Rest),
% {{'InstanceOfType',Class},Rest2}.
% parse_InstanceOfValue(Tokens) ->
% parse_Value(Tokens).
%% X.682 constraint specification
parse_GeneralConstraint(Tokens) ->
Flist = [fun parse_UserDefinedConstraint/1,
fun parse_TableConstraint/1,
fun parse_ContentsConstraint/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_UserDefinedConstraint([{'CONSTRAINED',_},{'BY',_},{'{',_},{'}',_}|Rest])->
{{constrained_by,[]},Rest};
parse_UserDefinedConstraint([{'CONSTRAINED',_},
{'BY',_},
{'{',_}|Rest]) ->
{Param,Rest2} = parse_UserDefinedConstraintParameter(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
{{constrained_by,Param},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'}']}})
end;
parse_UserDefinedConstraint(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
['CONSTRAINED BY {}','CONSTRAINED BY {']]}}).
parse_UserDefinedConstraintParameter(Tokens) ->
parse_UserDefinedConstraintParameter(Tokens,[]).
parse_UserDefinedConstraintParameter(Tokens,Acc) ->
Flist = [fun parse_GovernorAndActualParameter/1,
fun parse_ActualParameter/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
{Result,Rest} ->
case Rest of
[{',',_}|_Rest2] ->
parse_UserDefinedConstraintParameter(Tokens,[Result|Acc]);
_ ->
{lists:reverse([Result|Acc]),Rest}
end
end.
parse_GovernorAndActualParameter(Tokens) ->
{Governor,Rest} = parse_Governor(Tokens),
case Rest of
[{':',_}|Rest2] ->
{Params,Rest3} = parse_ActualParameter(Rest2),
{{'Governor_Params',Governor,Params},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,':']}})
end.
parse_TableConstraint(Tokens) ->
Flist = [fun parse_ComponentRelationConstraint/1,
fun parse_SimpleTableConstraint/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_SimpleTableConstraint(Tokens) ->
{ObjectSet,Rest} = parse_ObjectSet(Tokens),
{{element_set,{simpletable,ObjectSet},none},Rest}.
parse_ComponentRelationConstraint([{'{',_}|Rest]) ->
{ObjectSet,Rest2} = parse_DefinedObjectSet(Rest),
case Rest2 of
[{'}',_},{'{',_}|Rest3] ->
{AtNot,Rest4} = parse_AtNotationList(Rest3,[]),
case Rest4 of
[{'}',_}|Rest5] ->
Ret = {element_set,
{componentrelation,ObjectSet,AtNot},
none},
{Ret,Rest5};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'}']}})
end;
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,
'ComponentRelationConstraint',ended,with,'}']}})
%%% Other ->
%%% throw(Other)
end;
parse_ComponentRelationConstraint(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_AtNotationList(Tokens,Acc) ->
{AtNot,Rest} = parse_AtNotation(Tokens),
case Rest of
[{',',_}|Rest2] ->
parse_AtNotationList(Rest2,[AtNot|Acc]);
_ ->
{lists:reverse([AtNot|Acc]),Rest}
end.
parse_AtNotation([{'@',_},{'.',_}|Rest]) ->
{CIdList,Rest2} = parse_ComponentIdList(Rest),
{{innermost,CIdList},Rest2};
parse_AtNotation([{'@',_}|Rest]) ->
{CIdList,Rest2} = parse_ComponentIdList(Rest),
{{outermost,CIdList},Rest2};
parse_AtNotation(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,['@','@.']]}}).
parse_ComponentIdList(Tokens) ->
parse_ComponentIdList(Tokens,[]).
parse_ComponentIdList([Id = {identifier,_,_},{'.',_}|Rest],Acc) ->
parse_ComponentIdList(Rest,[identifier2Extvalueref(Id)|Acc]);
parse_ComponentIdList([Id = {identifier,_,_}|Rest],Acc) ->
{lists:reverse([identifier2Extvalueref(Id)|Acc]),Rest};
parse_ComponentIdList(Tokens,_) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[identifier,'identifier.']]}}).
parse_ContentsConstraint([{'CONTAINING',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
case Rest2 of
[{'ENCODED',_},{'BY',_}|Rest3] ->
{Value,Rest4} = parse_Value(Rest3),
{{contentsconstraint,Type,Value},Rest4};
_ ->
{{contentsconstraint,Type,[]},Rest2}
end;
parse_ContentsConstraint([{'ENCODED',_},{'BY',_}|Rest]) ->
{Value,Rest2} = parse_Value(Rest),
{{contentsconstraint,[],Value},Rest2};
parse_ContentsConstraint(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
'CONTAINING','or','ENCODED BY']}}).
% X.683 Parameterization of ASN.1 specifications
parse_Governor(Tokens) ->
Flist = [fun parse_Type/1,
fun parse_DefinedObjectClass/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_ActualParameter(Tokens) ->
Flist = [fun parse_Type/1,
fun parse_Value/1,
fun parse_ValueSet/1,
fun parse_DefinedObjectClass/1,
fun parse_Object/1,
fun parse_ObjectSet/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_ParameterizedAssignment(Tokens) ->
Flist = [fun parse_ParameterizedTypeAssignment/1,
fun parse_ParameterizedValueAssignment/1,
fun parse_ParameterizedValueSetTypeAssignment/1,
fun parse_ParameterizedObjectClassAssignment/1,
fun parse_ParameterizedObjectAssignment/1,
fun parse_ParameterizedObjectSetAssignment/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
AsnAssErr = {asn1_assignment_error,_} ->
throw(AsnAssErr);
Result ->
Result
end.
%% parse_ParameterizedTypeAssignment(Tokens) -> Result
%% Result = {#ptypedef{},Rest} | throw()
parse_ParameterizedTypeAssignment([{typereference,L1,Name}|Rest]) ->
{ParameterList,Rest2} = parse_ParameterList(Rest),
case Rest2 of
[{'::=',_}|Rest3] ->
{Type,Rest4} = parse_Type(Rest3),
{#ptypedef{pos=L1,name=Name,args=ParameterList,typespec=Type},
Rest4};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
end;
parse_ParameterizedTypeAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
typereference]}}).
%% parse_ParameterizedValueAssignment(Tokens) -> Result
%% Result = {#pvaluedef{},Rest} | throw()
parse_ParameterizedValueAssignment([{identifier,L1,Name}|Rest]) ->
{ParameterList,Rest2} = parse_ParameterList(Rest),
{Type,Rest3} = parse_Type(Rest2),
case Rest3 of
[{'::=',_}|Rest4] ->
{Value,Rest5} = parse_Value(Rest4),
{#pvaluedef{pos=L1,name=Name,args=ParameterList,type=Type,
value=Value},Rest5};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
end;
parse_ParameterizedValueAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
%% parse_ParameterizedValueSetTypeAssignment(Tokens) -> Result
%% Result = {#pvaluesetdef{},Rest} | throw()
parse_ParameterizedValueSetTypeAssignment([{typereference,L1,Name}|Rest]) ->
{ParameterList,Rest2} = parse_ParameterList(Rest),
{Type,Rest3} = parse_Type(Rest2),
case Rest3 of
[{'::=',_}|Rest4] ->
{ValueSet,Rest5} = parse_ValueSet(Rest4),
{#pvaluesetdef{pos=L1,name=Name,args=ParameterList,
type=Type,valueset=ValueSet},Rest5};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
end;
parse_ParameterizedValueSetTypeAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
typereference]}}).
%% parse_ParameterizedObjectClassAssignment(Tokens) -> Result
%% Result = {#ptypedef{},Rest} | throw()
parse_ParameterizedObjectClassAssignment([{typereference,L1,Name}|Rest]) ->
{ParameterList,Rest2} = parse_ParameterList(Rest),
case Rest2 of
[{'::=',_}|Rest3] ->
{Class,Rest4} = parse_ObjectClass(Rest3),
{#ptypedef{pos=L1,name=Name,args=ParameterList,typespec=Class},
Rest4};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
end;
parse_ParameterizedObjectClassAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
typereference]}}).
%% parse_ParameterizedObjectAssignment(Tokens) -> Result
%% Result = {#pobjectdef{},Rest} | throw()
parse_ParameterizedObjectAssignment([{identifier,L1,Name}|Rest]) ->
{ParameterList,Rest2} = parse_ParameterList(Rest),
{Class,Rest3} = parse_DefinedObjectClass(Rest2),
case Rest3 of
[{'::=',_}|Rest4] ->
{Object,Rest5} = parse_Object(Rest4),
{#pobjectdef{pos=L1,name=Name,args=ParameterList,
class=Class,def=Object},Rest5};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
%%% Other ->
%%% throw(Other)
end;
parse_ParameterizedObjectAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
%% parse_ParameterizedObjectSetAssignment(Tokens) -> Result
%% Result = {#pobjectsetdef{},Rest} | throw{}
parse_ParameterizedObjectSetAssignment([{typereference,L1,Name}|Rest]) ->
{ParameterList,Rest2} = parse_ParameterList(Rest),
{Class,Rest3} = parse_DefinedObjectClass(Rest2),
case Rest3 of
[{'::=',_}|Rest4] ->
{ObjectSet,Rest5} = parse_ObjectSet(Rest4),
{#pobjectsetdef{pos=L1,name=Name,args=ParameterList,
class=Class,def=ObjectSet},Rest5};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'::=']}})
%%% Other ->
%%% throw(Other)
end;
parse_ParameterizedObjectSetAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
typereference]}}).
%% parse_ParameterList(Tokens) -> Result
%% Result = [Parameter]
%% Parameter = {Governor,Reference} | Reference
%% Governor = Type | DefinedObjectClass
%% Type = #type{}
%% DefinedObjectClass = #'Externaltypereference'{}
%% Reference = #'Externaltypereference'{} | #'Externalvaluereference'{}
parse_ParameterList([{'{',_}|Rest]) ->
parse_ParameterList(Rest,[]);
parse_ParameterList(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_ParameterList(Tokens,Acc) ->
{Parameter,Rest} = parse_Parameter(Tokens),
case Rest of
[{',',_}|Rest2] ->
parse_ParameterList(Rest2,[Parameter|Acc]);
[{'}',_}|Rest3] ->
{lists:reverse([Parameter|Acc]),Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,[',','}']]}})
end.
parse_Parameter(Tokens) ->
Flist = [fun parse_ParamGovAndRef/1,
fun parse_Reference/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_ParamGovAndRef(Tokens) ->
{ParamGov,Rest} = parse_ParamGovernor(Tokens),
case Rest of
[{':',_}|Rest2] ->
{Ref,Rest3} = parse_Reference(Rest2),
{{ParamGov,Ref},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,':']}})
end.
parse_ParamGovernor(Tokens) ->
Flist = [fun parse_Governor/1,
fun parse_Reference/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
% parse_ParameterizedReference(Tokens) ->
% {Ref,Rest} = parse_Reference(Tokens),
% case Rest of
% [{'{',_},{'}',_}|Rest2] ->
% {{ptref,Ref},Rest2};
% _ ->
% {{ptref,Ref},Rest}
% end.
parse_SimpleDefinedType([{typereference,L1,ModuleName},{'.',_},
{typereference,_,TypeName}|Rest]) ->
{#'Externaltypereference'{pos=L1,module=ModuleName,
type=TypeName},Rest};
parse_SimpleDefinedType([Tref={typereference,_,_}|Rest]) ->
% {#'Externaltypereference'{pos=L2,module=get(asn1_module),
% type=TypeName},Rest};
{tref2Exttref(Tref),Rest};
parse_SimpleDefinedType(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[typereference,'typereference.typereference']]}}).
parse_SimpleDefinedValue([{typereference,L1,ModuleName},{'.',_},
{identifier,_,Value}|Rest]) ->
{{simpledefinedvalue,#'Externalvaluereference'{pos=L1,module=ModuleName,
value=Value}},Rest};
parse_SimpleDefinedValue([Id={identifier,_,_Value}|Rest]) ->
{{simpledefinedvalue,identifier2Extvalueref(Id)},Rest};
parse_SimpleDefinedValue(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
['typereference.identifier',identifier]]}}).
parse_ParameterizedType(Tokens) ->
{Type,Rest} = parse_SimpleDefinedType(Tokens),
{Params,Rest2} = parse_ActualParameterList(Rest),
{#type{def={pt,Type,Params}},Rest2}.
parse_ParameterizedValue(Tokens) ->
{Value,Rest} = parse_SimpleDefinedValue(Tokens),
{Params,Rest2} = parse_ActualParameterList(Rest),
{{pv,Value,Params},Rest2}.
parse_ParameterizedObjectClass(Tokens) ->
{Type,Rest} = parse_DefinedObjectClass(Tokens),
{Params,Rest2} = parse_ActualParameterList(Rest),
{{poc,Type,Params},Rest2}.
parse_ParameterizedObjectSet(Tokens) ->
{ObjectSet,Rest} = parse_DefinedObjectSet(Tokens),
{Params,Rest2} = parse_ActualParameterList(Rest),
{{pos,ObjectSet,Params},Rest2}.
parse_ParameterizedObject(Tokens) ->
{Object,Rest} = parse_DefinedObject(Tokens),
{Params,Rest2} = parse_ActualParameterList(Rest),
{{po,Object,Params},Rest2}.
parse_ActualParameterList([{'{',_}|Rest]) ->
parse_ActualParameterList(Rest,[]);
parse_ActualParameterList(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_ActualParameterList(Tokens,Acc) ->
{Parameter,Rest} = parse_ActualParameter(Tokens),
case Rest of
[{',',_}|Rest2] ->
parse_ActualParameterList(Rest2,[Parameter|Acc]);
[{'}',_}|Rest3] ->
{lists:reverse([Parameter|Acc]),Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,[',','}']]}})
%%% Other ->
%%% throw(Other)
end.
%-------------------------
is_word(Token) ->
case not_allowed_word(Token) of
true -> false;
_ ->
if
is_atom(Token) ->
Item = atom_to_list(Token),
is_word(Item);
is_list(Token), length(Token) == 1 ->
check_one_char_word(Token);
is_list(Token) ->
[A|Rest] = Token,
case check_first(A) of
true ->
check_rest(Rest);
_ ->
false
end
end
end.
not_allowed_word(Name) ->
lists:member(Name,["BIT",
"BOOLEAN",
"CHARACTER",
"CHOICE",
"EMBEDDED",
"END",
"ENUMERATED",
"EXTERNAL",
"FALSE",
"INSTANCE",
"INTEGER",
"INTERSECTION",
"MINUS-INFINITY",
"NULL",
"OBJECT",
"OCTET",
"PLUS-INFINITY",
"REAL",
"SEQUENCE",
"SET",
"TRUE",
"UNION"]).
check_one_char_word([A]) when $A =< A, $Z >= A ->
true;
check_one_char_word([_]) ->
false. %% unknown item in SyntaxList
check_first(A) when $A =< A, $Z >= A ->
true;
check_first(_) ->
false. %% unknown item in SyntaxList
check_rest([R,R|_Rs]) when $- == R ->
false; %% two consecutive hyphens are not allowed in a word
check_rest([R]) when $- == R ->
false; %% word cannot end with hyphen
check_rest([R|Rs]) when $A=<R, $Z>=R; $-==R ->
check_rest(Rs);
check_rest([]) ->
true;
check_rest(_) ->
false.
parse_AlternativeTypeLists(Tokens) ->
parse_AlternativeTypeLists(Tokens,[]).
parse_AlternativeTypeLists(Tokens = [{identifier,_,_}|_Rest0],Clist) ->
{CompList,Rest1} = parse_AlternativeTypeList(Tokens,[]),
parse_AlternativeTypeLists(Rest1,Clist++CompList);
parse_AlternativeTypeLists([{'...',L1},{'!',_}|Rest02],Clist0) ->
{_,Rest03} = parse_ExceptionIdentification(Rest02),
%% Exception info is currently thrown away
parse_AlternativeTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_AlternativeTypeLists([{',',L1},{'...',_},{'!',_}|Rest02],Clist0) when Clist0 =/= []->
{_,Rest03} = parse_ExceptionIdentification(Rest02),
%% Exception info is currently thrown away
parse_AlternativeTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_AlternativeTypeLists([{',',_},{'...',L1}|Rest02],Clist0) when Clist0 =/= []->
parse_AlternativeTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_AlternativeTypeLists([{'...',L1}|Rest02],Clist0) ->
parse_AlternativeTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_AlternativeTypeLists(Tokens = [{'}',_L1}|_Rest02],Clist0) ->
{Clist0,Tokens}.
parse_AlternativeTypeLists2(Tokens,Clist) ->
{ExtAdd,Rest} = parse_ExtensionAdditionAlternatives(Tokens,Clist),
{Clist2,Rest2} = parse_OptionalExtensionMarker(Rest,lists:flatten(ExtAdd)),
case Rest2 of
[{',',_}|Rest3] ->
{CompList,Rest4} = parse_AlternativeTypeList(Rest3,[]),
{Clist2 ++ CompList,Rest4};
_ ->
{Clist2,Rest2}
end.
parse_AlternativeTypeList([{',',_},Id = {identifier,_,_}|Rest],Acc) when Acc =/= [] ->
{AlternativeType,Rest2} = parse_NamedType([Id|Rest]),
parse_AlternativeTypeList(Rest2,[AlternativeType|Acc]);
parse_AlternativeTypeList(Tokens = [{'}',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_AlternativeTypeList(Tokens = [{']',_},{']',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_AlternativeTypeList(Tokens = [{',',_},{'...',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_AlternativeTypeList(Tokens,[]) ->
{AlternativeType,Rest} = parse_NamedType(Tokens),
parse_AlternativeTypeList(Rest,[AlternativeType]);
parse_AlternativeTypeList(Tokens,_) ->
throw({asn1_error,
{get_line(hd(Tokens)),get(asn1_module),
[got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
expected,['}',', identifier']]}}).
parse_ExtensionAdditionAlternatives(Tokens =[{',',_}|_],Clist) ->
{ExtAddList,Rest2} = parse_ExtensionAdditionAlternativesList(Tokens,[]),
{Clist++lists:flatten(ExtAddList),Rest2};
parse_ExtensionAdditionAlternatives(Tokens,Clist) ->
%% Empty
{Clist,Tokens}.
parse_ExtensionAdditionAlternativesList([{',',_},Id = {identifier,_,_}|Rest],Acc) ->
{AlternativeType,Rest2} = parse_NamedType([Id|Rest]),
parse_ExtensionAdditionAlternativesList(Rest2,[AlternativeType|Acc]);
parse_ExtensionAdditionAlternativesList([{',',_},C1 = {'[',_},C2 = {'[',_}|Rest],Acc) ->
{ExtAddGroup,Rest2} = parse_ExtensionAdditionAlternativesGroup([C1,C2|Rest],[]),
parse_ExtensionAdditionAlternativesList(Rest2,[ExtAddGroup|Acc]);
parse_ExtensionAdditionAlternativesList(Tokens = [{'}',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ExtensionAdditionAlternativesList(Tokens = [{',',_},{'...',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ExtensionAdditionAlternativesList(Tokens,_) ->
throw({asn1_error,
{get_line(hd(Tokens)),get(asn1_module),
[got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
expected,['}',', identifier']]}}).
parse_ExtensionAdditionAlternativesGroup([ {'[',_},{'[',_},_VsnNr = {number,_,Num},{':',_}|Rest],[]) ->
parse_ExtensionAdditionAlternativesGroup2(Rest,Num);
parse_ExtensionAdditionAlternativesGroup([ {'[',_},{'[',_}|Rest],[]) ->
parse_ExtensionAdditionAlternativesGroup2(Rest,undefined);
parse_ExtensionAdditionAlternativesGroup(Tokens,_) ->
throw({asn1_error,
{get_line(hd(Tokens)),get(asn1_module),
[got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
expected,['[[']]}}).
parse_ExtensionAdditionAlternativesGroup2(Tokens,Num) ->
{CompTypeList,Rest} = parse_AlternativeTypeList(Tokens,[]),
case Rest of
[{']',_},{']',_}|Rest2] ->
{[{'ExtensionAdditionGroup',Num}|CompTypeList] ++
['ExtensionAdditionGroupEnd'],Rest2};
_ ->
throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
[got,get_token(hd(Rest)),expected,[']]']]}})
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% parse_AlternativeTypeLists(Tokens,ExtensionDefault) ->
%% {AltTypeList,Rest1} = parse_AlternativeTypeList(Tokens),
%% {ExtensionAndException,Rest2} =
%% case Rest1 of
%% [{',',_},{'...',L1},{'!',_}|Rest12] ->
%% {_,Rest13} = parse_ExceptionIdentification(Rest12),
%% %% Exception info is currently thrown away
%% {[#'EXTENSIONMARK'{pos=L1}],Rest13};
%% [{',',_},{'...',L1}|Rest12] ->
%% {[#'EXTENSIONMARK'{pos=L1}],Rest12};
%% _ ->
%% {[],Rest1}
%% end,
%% {AltTypeList2,Rest5} =
%% case ExtensionAndException of
%% [] ->
%% {AltTypeList,Rest2};
%% _ ->
%% {ExtensionAddition,Rest3} =
%% case Rest2 of
%% [{',',_}|Rest23] ->
%% parse_ExtensionAdditionAlternativeList(Rest23);
%% _ ->
%% {[],Rest2}
%% end,
%% {OptionalExtensionMarker,Rest4} =
%% case Rest3 of
%% [{',',_},{'...',L3}|Rest31] ->
%% {[#'EXTENSIONMARK'{pos=L3}],Rest31};
%% _ ->
%% {[],Rest3}
%% end,
%% {AltTypeList ++ ExtensionAndException ++
%% ExtensionAddition ++ OptionalExtensionMarker, Rest4}
%% end,
%% AltTypeList3 =
%% case [X || X=#'EXTENSIONMARK'{} <- AltTypeList2] of
%% [] when ExtensionDefault == 'IMPLIED' ->
%% AltTypeList2 ++ [#'EXTENSIONMARK'{}];
%% _ ->
%% AltTypeList2
%% end,
%% {AltTypeList3,Rest5}.
%% parse_AlternativeTypeList(Tokens) ->
%% parse_AlternativeTypeList(Tokens,[]).
%% parse_AlternativeTypeList(Tokens,Acc) ->
%% {NamedType,Rest} = parse_NamedType(Tokens),
%% case Rest of
%% [{',',_},Id = {identifier,_,_}|Rest2] ->
%% parse_AlternativeTypeList([Id|Rest2],[NamedType|Acc]);
%% _ ->
%% {lists:reverse([NamedType|Acc]),Rest}
%% end.
%% parse_ExtensionAdditionAlternativeList(Tokens) ->
%% parse_ExtensionAdditionAlternativeList(Tokens,[]).
%% parse_ExtensionAdditionAlternativeList([{'[[',_}|Rest],Acc) ->
%% parse_ExtensionAdditionAlternativeList(Rest,Acc);
%% parse_ExtensionAdditionAlternativeList(Tokens = [{identifier,_,_}|_Rest],Acc) ->
%% {Element,Rest0} = parse_NamedType(Tokens);
%% case Rest0 of
%% [{',',_}|Rest01] ->
%% parse_ExtensionAdditionAlternativeList(Rest01,[Element|Acc]);
%% _ ->
%% {lists:reverse([Element|Acc]),Rest0}
%% end.
%% parse_ExtensionAdditionAlternatives([{'[[',_}|Rest]) ->
%% parse_ExtensionAdditionAlternatives(Rest,[]);
%% parse_ExtensionAdditionAlternatives(Tokens) ->
%% throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
%% [got,get_token(hd(Tokens)),expected,'[[']}}).
%% parse_ExtensionAdditionAlternatives([Id = {identifier,_,_}|Rest],Acc) ->
%% {NamedType, Rest2} = parse_NamedType([Id|Rest]),
%% case Rest2 of
%% [{',',_}|Rest21] ->
%% parse_ExtensionAdditionAlternatives(Rest21,[NamedType|Acc]);
%% [{']]',_}|Rest21] ->
%% {lists:reverse(Acc),Rest21};
%% _ ->
%% throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
%% [got,get_token(hd(Rest2)),expected,[',',']]']]}})
%% end.
parse_NamedType([{identifier,L1,Idname}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{#'ComponentType'{pos=L1,name=Idname,typespec=Type,prop=mandatory},Rest2};
parse_NamedType(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
parse_ComponentTypeLists(Tokens) ->
parse_ComponentTypeLists(Tokens,[]).
parse_ComponentTypeLists(Tokens = [{identifier,_,_}|_Rest0],Clist) ->
{CompList,Rest1} = parse_ComponentTypeList(Tokens,[]),
parse_ComponentTypeLists(Rest1,Clist++CompList);
parse_ComponentTypeLists(Tokens = [{'COMPONENTS',_},{'OF',_}|_Rest],Clist) ->
{CompList,Rest1} = parse_ComponentTypeList(Tokens,[]),
parse_ComponentTypeLists(Rest1,Clist++CompList);
parse_ComponentTypeLists([{'...',L1},{'!',_}|Rest02],Clist0) ->
{_,Rest03} = parse_ExceptionIdentification(Rest02),
%% Exception info is currently thrown away
parse_ComponentTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_ComponentTypeLists([{',',L1},{'...',_},{'!',_}|Rest02],Clist0) when Clist0 =/= []->
{_,Rest03} = parse_ExceptionIdentification(Rest02),
%% Exception info is currently thrown away
parse_ComponentTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_ComponentTypeLists([{',',_},{'...',L1}|Rest02],Clist0) when Clist0 =/= []->
parse_ComponentTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_ComponentTypeLists([{'...',L1}|Rest02],Clist0) ->
parse_ComponentTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
parse_ComponentTypeLists(Tokens = [{'}',_L1}|_Rest02],Clist0) ->
{Clist0,Tokens}.
parse_ComponentTypeLists2(Tokens,Clist) ->
{ExtAdd,Rest} = parse_ExtensionAdditions(Tokens,Clist),
{Clist2,Rest2} = parse_OptionalExtensionMarker(Rest,lists:flatten(ExtAdd)),
case Rest2 of
[{',',_}|Rest3] ->
{CompList,Rest4} = parse_ComponentTypeList(Rest3,[]),
{Clist2 ++ CompList,Rest4};
_ ->
{Clist2,Rest2}
end.
parse_OptionalExtensionMarker([{',',_},{'...',L1}|Rest],Clist)->
{Clist++[#'EXTENSIONMARK'{pos=L1}],Rest};
parse_OptionalExtensionMarker(Tokens,Clist) ->
{Clist,Tokens}.
parse_ComponentTypeList([{',',_},Id = {identifier,_,_}|Rest],Acc) when Acc =/= [] ->
{ComponentType,Rest2} = parse_ComponentType([Id|Rest]),
parse_ComponentTypeList(Rest2,[ComponentType|Acc]);
parse_ComponentTypeList([{',',_},C1={'COMPONENTS',_},C2={'OF',_}|Rest],Acc) when Acc =/= [] ->
{ComponentType,Rest2} = parse_ComponentType([C1,C2|Rest]),
parse_ComponentTypeList(Rest2,[ComponentType|Acc]);
parse_ComponentTypeList(Tokens = [{'}',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ComponentTypeList(Tokens = [{']',_},{']',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ComponentTypeList(Tokens = [{',',_},{'...',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ComponentTypeList(Tokens,[]) ->
{ComponentType,Rest} = parse_ComponentType(Tokens),
parse_ComponentTypeList(Rest,[ComponentType]);
parse_ComponentTypeList(Tokens,_) ->
throw({asn1_error,
{get_line(hd(Tokens)),get(asn1_module),
[got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
expected,['}',', identifier']]}}).
parse_ExtensionAdditions(Tokens=[{',',_}|_],Clist) ->
{ExtAddList,Rest2} = parse_ExtensionAdditionList(Tokens,[]),
{Clist++ExtAddList,Rest2};
parse_ExtensionAdditions(Tokens,Clist) ->
%% Empty
{Clist,Tokens}.
parse_ExtensionAdditionList([{',',_},Id = {identifier,_,_}|Rest],Acc) ->
{ComponentType,Rest2} = parse_ComponentType([Id|Rest]),
parse_ExtensionAdditionList(Rest2,[ComponentType|Acc]);
parse_ExtensionAdditionList([{',',_},C1={'COMPONENTS',_},C2={'OF',_}|Rest],Acc) ->
{ComponentType,Rest2} = parse_ComponentType([C1,C2|Rest]),
parse_ExtensionAdditionList(Rest2,[ComponentType|Acc]);
parse_ExtensionAdditionList([{',',_},C1 = {'[',_},C2 = {'[',_}|Rest],Acc) ->
{ExtAddGroup,Rest2} = parse_ExtensionAdditionGroup([C1,C2|Rest],[]),
parse_ExtensionAdditionList(Rest2,[ExtAddGroup|Acc]);
parse_ExtensionAdditionList(Tokens = [{'}',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ExtensionAdditionList(Tokens = [{',',_},{'...',_}|_],Acc) ->
{lists:reverse(Acc),Tokens};
parse_ExtensionAdditionList(Tokens,_) ->
throw({asn1_error,
{get_line(hd(Tokens)),get(asn1_module),
[got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
expected,['}',', identifier']]}}).
parse_ExtensionAdditionGroup([ {'[',_},{'[',_},_VsnNr = {number,_,Num},{':',_}|Rest],[]) ->
parse_ExtensionAdditionGroup2(Rest,Num);
parse_ExtensionAdditionGroup([ {'[',_},{'[',_}|Rest],[]) ->
parse_ExtensionAdditionGroup2(Rest,undefined);
parse_ExtensionAdditionGroup(Tokens,_) ->
throw({asn1_error,
{get_line(hd(Tokens)),get(asn1_module),
[got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
expected,['[[']]}}).
parse_ExtensionAdditionGroup2(Tokens,Num) ->
{CompTypeList,Rest} = parse_ComponentTypeList(Tokens,[]),
case Rest of
[{']',_},{']',_}|Rest2] ->
{[{'ExtensionAdditionGroup',Num}|CompTypeList] ++
['ExtensionAdditionGroupEnd'],Rest2};
_ ->
throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
[got,get_token(hd(Rest)),expected,[']]']]}})
end.
parse_ComponentType([{'COMPONENTS',_},{'OF',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{{'COMPONENTS OF',Type},Rest2};
parse_ComponentType(Tokens) ->
Result = {NamedType,Rest} = parse_NamedType(Tokens),
case Rest of
[{'OPTIONAL',_}|Rest2] ->
{NamedType#'ComponentType'{prop='OPTIONAL'},Rest2};
[{'DEFAULT',_}|Rest2] ->
{Value,Rest21} = parse_Value(Rest2),
{NamedType#'ComponentType'{prop={'DEFAULT',Value}},Rest21};
_ ->
Result
end.
parse_SignedNumber([{number,_,Value}|Rest]) ->
{Value,Rest};
parse_SignedNumber([{'-',_},{number,_,Value}|Rest]) ->
{-Value,Rest};
parse_SignedNumber(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
[number,'-number']]}}).
parse_Enumerations(Tokens=[{identifier,_,_}|_Rest],ExtensionDefault) ->
parse_Enumerations(Tokens,[],ExtensionDefault);
parse_Enumerations([H|_T],_) ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,identifier]}}).
parse_Enumerations(Tokens = [{identifier,_,_},{'(',_}|_Rest], Acc, ExtensionDefault) ->
{NamedNumber,Rest2} = parse_NamedNumber(Tokens),
case Rest2 of
[{',',_}|Rest3] ->
parse_Enumerations(Rest3,[NamedNumber|Acc], ExtensionDefault);
_ when ExtensionDefault == 'IMPLIED'->
{lists:reverse(['EXTENSIONMARK',NamedNumber|Acc]),Rest2};
_ ->
{lists:reverse([NamedNumber|Acc]),Rest2}
end;
parse_Enumerations([{identifier,_,Id}|Rest], Acc, ExtensionDefault) ->
case Rest of
[{',',_}|Rest2] ->
parse_Enumerations(Rest2,[Id|Acc], ExtensionDefault);
_ when ExtensionDefault == 'IMPLIED' ->
{lists:reverse(['EXTENSIONMARK', Id |Acc]),Rest};
_ ->
{lists:reverse([Id|Acc]),Rest}
end;
parse_Enumerations([{'...',_}|Rest], Acc, _ExtensionDefault) ->
case Rest of
[{',',_}|Rest2] ->
parse_Enumerations(Rest2,['EXTENSIONMARK'|Acc],undefined);
_ ->
{lists:reverse(['EXTENSIONMARK'|Acc]),Rest}
end;
parse_Enumerations([H|_T],_,_) ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,identifier]}}).
parse_NamedNumberList(Tokens) ->
parse_NamedNumberList(Tokens,[]).
parse_NamedNumberList(Tokens,Acc) ->
{NamedNum,Rest} = parse_NamedNumber(Tokens),
case Rest of
[{',',_}|Rest2] ->
parse_NamedNumberList(Rest2,[NamedNum|Acc]);
_ ->
{lists:reverse([NamedNum|Acc]),Rest}
end.
parse_NamedNumber([{identifier,_,Name},{'(',_}|Rest]) ->
Flist = [fun parse_SignedNumber/1,
fun parse_DefinedValue/1],
case (catch parse_or(Rest,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
{NamedNum,[{')',_}|Rest2]} ->
{{'NamedNumber',Name,NamedNum},Rest2};
_ ->
throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
[got,get_token(hd(Rest)),expected,'NamedNumberList']}})
end;
parse_NamedNumber(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
parse_Tag([{'[',_}|Rest]) ->
{Class,Rest2} = parse_Class(Rest),
{ClassNumber,Rest3} =
case Rest2 of
[{number,_,Num}|Rest21] ->
{Num,Rest21};
_ ->
parse_DefinedValue(Rest2)
end,
case Rest3 of
[{']',_}|Rest4] ->
{#tag{class=Class,number=ClassNumber},Rest4};
_ ->
throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
[got,get_token(hd(Rest3)),expected,']']}})
end;
parse_Tag(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'[']}}).
parse_Class([{'UNIVERSAL',_}|Rest]) ->
{'UNIVERSAL',Rest};
parse_Class([{'APPLICATION',_}|Rest]) ->
{'APPLICATION',Rest};
parse_Class([{'PRIVATE',_}|Rest]) ->
{'PRIVATE',Rest};
parse_Class(Tokens) ->
{'CONTEXT',Tokens}.
%% parse_Value(Tokens) -> Ret
%% Tokens = [Tok]
%% Tok = tuple()
%% Ret = term()
parse_Value(Tokens) ->
Flist = [fun parse_BuiltinValue/1,
fun parse_ValueFromObject/1,
fun parse_DefinedValue/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end.
parse_BuiltinValue([{bstring,_,Bstr}|Rest]) ->
{{bstring,Bstr},Rest};
parse_BuiltinValue([{hstring,_,Hstr}|Rest]) ->
{{hstring,Hstr},Rest};
parse_BuiltinValue([{'{',_},{'}',_}|Rest]) ->
{[],Rest};
parse_BuiltinValue(Tokens = [{'{',_}|_Rest]) ->
Flist = [
fun parse_SequenceOfValue/1,
fun parse_SequenceValue/1,
fun parse_ObjectIdentifierValue/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
Result ->
Result
end;
parse_BuiltinValue([{identifier,_,IdName},{':',_}|Rest]) ->
{Value,Rest2} = parse_Value(Rest),
{{'CHOICE',{IdName,Value}},Rest2};
parse_BuiltinValue(Tokens=[{'NULL',_},{':',_}|_Rest]) ->
parse_ObjectClassFieldValue(Tokens);
parse_BuiltinValue([{'NULL',_}|Rest]) ->
{'NULL',Rest};
parse_BuiltinValue([{'TRUE',_}|Rest]) ->
{true,Rest};
parse_BuiltinValue([{'FALSE',_}|Rest]) ->
{false,Rest};
parse_BuiltinValue([{'PLUS-INFINITY',_}|Rest]) ->
{'PLUS-INFINITY',Rest};
parse_BuiltinValue([{'MINUS-INFINITY',_}|Rest]) ->
{'MINUS-INFINITY',Rest};
parse_BuiltinValue([{cstring,_,Cstr}|Rest]) ->
{Cstr,Rest};
parse_BuiltinValue([{number,_,Num}|Rest]) ->
{Num,Rest};
parse_BuiltinValue([{'-',_},{number,_,Num}|Rest]) ->
{- Num,Rest};
parse_BuiltinValue(Tokens) ->
parse_ObjectClassFieldValue(Tokens).
parse_DefinedValue(Tokens=[{identifier,_,_},{'{',_}|_Rest]) ->
parse_ParameterizedValue(Tokens);
%% Externalvaluereference
parse_DefinedValue([{typereference,L1,Tname},{'.',_},{identifier,_,Idname}|Rest]) ->
{#'Externalvaluereference'{pos=L1,module=Tname,value=Idname},Rest};
%% valuereference
parse_DefinedValue([Id = {identifier,_,_}|Rest]) ->
{identifier2Extvalueref(Id),Rest};
%% ParameterizedValue
parse_DefinedValue(Tokens) ->
parse_ParameterizedValue(Tokens).
parse_SequenceValue([{'{',_}|Tokens]) ->
parse_SequenceValue(Tokens,[]);
parse_SequenceValue(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_SequenceValue([{identifier,Pos,IdName}|Rest],Acc) ->
{Value,Rest2} = parse_Value(Rest),
SeqTag = #seqtag{pos=Pos,module=get(asn1_module),val=IdName},
case Rest2 of
[{',',_}|Rest3] ->
parse_SequenceValue(Rest3, [{SeqTag,Value}|Acc]);
[{'}',_}|Rest3] ->
{lists:reverse(Acc, [{SeqTag,Value}]),Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end;
parse_SequenceValue(Tokens,_Acc) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
parse_SequenceOfValue([{'{',_}|Tokens]) ->
parse_SequenceOfValue(Tokens,[]);
parse_SequenceOfValue(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_SequenceOfValue(Tokens,Acc) ->
{Value,Rest2} = parse_Value(Tokens),
case Rest2 of
[{',',_}|Rest3] ->
parse_SequenceOfValue(Rest3,[Value|Acc]);
[{'}',_}|Rest3] ->
{lists:reverse([Value|Acc]),Rest3};
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'}']}})
end.
parse_ValueSetTypeAssignment([{typereference,L1,Name}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
case Rest2 of
[{'::=',_}|Rest3] ->
{ValueSet,Rest4} = parse_ValueSet(Rest3),
{#valuedef{pos=L1,name=Name,type=Type,value=ValueSet,
module=get(asn1_module)},Rest4};
[H|_T] ->
throw({asn1_error,{get_line(L1),get(asn1_module),
[got,get_token(H),expected,'::=']}})
end;
parse_ValueSetTypeAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,
typereference]}}).
parse_ValueSet([{'{',_}|Rest]) ->
{Elems,Rest2} = parse_ElementSetSpecs(Rest),
case Rest2 of
[{'}',_}|Rest3] ->
{{valueset,Elems},Rest3};
[H|_T] ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,'}']}})
end;
parse_ValueSet(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'{']}}).
parse_ValueAssignment([{identifier,L1,IdName}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
case Rest2 of
[{'::=',_}|Rest3] ->
{Value,Rest4} = parse_Value(Rest3),
case catch lookahead_assignment(Rest4) of
ok ->
{#valuedef{pos=L1,name=IdName,type=Type,value=Value,
module=get(asn1_module)},Rest4};
Error ->
throw(Error)
%% throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
%% [got,get_token(hd(Rest2)),expected,'::=']}})
end;
_ ->
throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
[got,get_token(hd(Rest2)),expected,'::=']}})
end;
parse_ValueAssignment(Tokens) ->
throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,identifier]}}).
%% SizeConstraint
parse_SubtypeElements([{'SIZE',_}|Tokens]) ->
{Constraint,Rest} = parse_Constraint(Tokens),
{{'SizeConstraint',Constraint#constraint.c},Rest};
%% PermittedAlphabet
parse_SubtypeElements([{'FROM',_}|Tokens]) ->
{Constraint,Rest} = parse_Constraint(Tokens),
{{'PermittedAlphabet',Constraint#constraint.c},Rest};
%% InnerTypeConstraints
parse_SubtypeElements([{'WITH',_},{'COMPONENT',_}|Tokens]) ->
{Constraint,Rest} = parse_Constraint(Tokens),
{{'WITH COMPONENT',Constraint},Rest};
parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_},{'...',_},{',',_}|Tokens]) ->
{Constraint,Rest} = parse_TypeConstraints(Tokens),
case Rest of
[{'}',_}|Rest2] ->
{{'WITH COMPONENTS',{'PartialSpecification',Constraint}},Rest2};
_ ->
throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
[got,get_token(hd(Rest)),expected,'}']}})
end;
parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_}|Tokens]) ->
{Constraint,Rest} = parse_TypeConstraints(Tokens),
case Rest of
[{'}',_}|Rest2] ->
{{'WITH COMPONENTS',{'FullSpecification',Constraint}},Rest2};
_ ->
throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
[got,get_token(hd(Rest)),expected,'}']}})
end;
parse_SubtypeElements([{'PATTERN',_}|Tokens]) ->
{Value,Rest} = parse_Value(Tokens),
{{pattern,Value},Rest};
%% SingleValue
%% ContainedSubtype
%% ValueRange
%% TypeConstraint
%% Moved fun parse_Value/1 and fun parse_Type/1 to parse_Elements
parse_SubtypeElements(Tokens) ->
Flist = [fun parse_ContainedSubtype/1,
fun parse_Value/1,
fun([{'MIN',_}|T]) -> {'MIN',T} end,
fun parse_Type/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
{asn1_error,Reason} ->
throw(Reason);
Result = {Val,_} when is_record(Val,type) ->
Result;
{Lower,[{'..',_}|Rest]} ->
{Upper,Rest2} = parse_UpperEndpoint(Rest),
{{'ValueRange',{Lower,Upper}},Rest2};
{Lower,[{'<',_},{'..',_}|Rest]} ->
{Upper,Rest2} = parse_UpperEndpoint(Rest),
{{'ValueRange',{{gt,Lower},Upper}},Rest2};
{Res={'ContainedSubtype',_Type},Rest} ->
{Res,Rest};
{Value,Rest} ->
{{'SingleValue',Value},Rest}
end.
parse_ContainedSubtype([{'INCLUDES',_}|Rest]) ->
{Type,Rest2} = parse_Type(Rest),
{{'ContainedSubtype',Type},Rest2};
parse_ContainedSubtype(Tokens) ->
throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
[got,get_token(hd(Tokens)),expected,'INCLUDES']}}).
%%parse_ContainedSubtype(Tokens) -> %this option is moved to parse_SubtypeElements
%% parse_Type(Tokens).
parse_UpperEndpoint([{'<',_}|Rest]) ->
parse_UpperEndpoint(lt,Rest);
parse_UpperEndpoint(Tokens) ->
parse_UpperEndpoint(false,Tokens).
parse_UpperEndpoint(Lt,Tokens) ->
Flist = [ fun([{'MAX',_}|T]) -> {'MAX',T} end,
fun parse_Value/1],
case (catch parse_or(Tokens,Flist)) of
{'EXIT',Reason} ->
exit(Reason);
AsnErr = {asn1_error,_} ->
throw(AsnErr);
{Value,Rest2} when Lt == lt ->
{{lt,Value},Rest2};
{Value,Rest2} ->
{Value,Rest2}
end.
parse_TypeConstraints(Tokens) ->
parse_TypeConstraints(Tokens,[]).
parse_TypeConstraints([{identifier,_,_}|Rest],Acc) ->
{ComponentConstraint,Rest2} = parse_ComponentConstraint(Rest),
case Rest2 of
[{',',_}|Rest3] ->
parse_TypeConstraints(Rest3,[ComponentConstraint|Acc]);
_ ->
{lists:reverse([ComponentConstraint|Acc]),Rest2}
end;
parse_TypeConstraints([H|_T],_) ->
throw({asn1_error,{get_line(H),get(asn1_module),
[got,get_token(H),expected,identifier]}}).
parse_ComponentConstraint(Tokens = [{'(',_}|_Rest]) ->
{ValueConstraint,Rest2} = parse_Constraint(Tokens),
{PresenceConstraint,Rest3} = parse_PresenceConstraint(Rest2),
{{ValueConstraint,PresenceConstraint},Rest3};
parse_ComponentConstraint(Tokens) ->
{PresenceConstraint,Rest} = parse_PresenceConstraint(Tokens),
{{asn1_empty,PresenceConstraint},Rest}.
parse_PresenceConstraint([{'PRESENT',_}|Rest]) ->
{'PRESENT',Rest};
parse_PresenceConstraint([{'ABSENT',_}|Rest]) ->
{'ABSENT',Rest};
parse_PresenceConstraint([{'OPTIONAL',_}|Rest]) ->
{'OPTIONAL',Rest};
parse_PresenceConstraint(Tokens) ->
{asn1_empty,Tokens}.
merge_constraints(Clist) ->
merge_constraints(Clist, [], []).
merge_constraints([#constraint{c=C,e=E}|T], Cacc0, Eacc0) ->
Eacc = case E of
undefined -> Eacc0;
E -> [E|Eacc0]
end,
Cacc = [C|Cacc0],
merge_constraints(T, Cacc, Eacc);
merge_constraints([], Cacc, []) ->
lists:reverse(Cacc);
merge_constraints([], Cacc, Eacc) ->
lists:reverse(Cacc) ++ [{element_set,{'Errors',Eacc},none}].
get_line({_,Pos,Token}) when is_integer(Pos),is_atom(Token) ->
Pos;
get_line({Token,Pos}) when is_integer(Pos),is_atom(Token) ->
Pos;
get_line(_) ->
undefined.
get_token({_,Pos,Token}) when is_integer(Pos),is_atom(Token) ->
Token;
get_token({'$end',Pos}) when is_integer(Pos) ->
undefined;
get_token({Token,Pos}) when is_integer(Pos),is_atom(Token) ->
Token;
get_token(_) ->
undefined.
prioritize_error(ErrList) ->
case lists:keymember(asn1_error,1,ErrList) of
false -> % only asn1_assignment_error -> take the last
lists:last(ErrList);
true -> % contains errors from deeper in a Type
NewErrList = [_Err={_,_}|_RestErr] =
lists:filter(fun({asn1_error,_})->true;(_)->false end,
ErrList),
SplitErrs =
lists:splitwith(fun({_,X})->
case element(1,X) of
Int when is_integer(Int) -> true;
_ -> false
end
end,
NewErrList),
case SplitErrs of
{[],UndefPosErrs} -> % if no error with Positon exists
lists:last(UndefPosErrs);
{IntPosErrs,_} ->
IntPosReasons = lists:map(fun(X)->element(2,X) end,IntPosErrs),
SortedReasons = lists:keysort(1,IntPosReasons),
{asn1_error,lists:last(SortedReasons)}
end
end.
%% most_prio_error([H={_,Reason}|T],Atom,Err) when is_atom(Atom) ->
%% most_prio_error(T,element(1,Reason),H);
%% most_prio_error([H={_,Reason}|T],Greatest,Err) ->
%% case element(1,Reason) of
%% Pos when is_integer(Pos),Pos>Greatest ->
%% most_prio_error(
tref2Exttref(#typereference{pos=Pos,val=Name}) ->
#'Externaltypereference'{pos=Pos,
module=resolve_module(Name),
type=Name}.
tref2Exttref(Pos,Name) ->
#'Externaltypereference'{pos=Pos,
module=resolve_module(Name),
type=Name}.
identifier2Extvalueref(#identifier{pos=Pos,val=Name}) ->
#'Externalvaluereference'{pos=Pos,
module=resolve_module(Name),
value=Name}.
%% lookahead_assignment/1 checks that the next sequence of tokens
%% in Token contain a valid assignment or the
%% 'END' token. Otherwise an exception is thrown.
lookahead_assignment([{'END',_}|_Rest]) ->
ok;
lookahead_assignment(Tokens) ->
parse_Assignment(Tokens),
ok.
