diff options
Diffstat (limited to 'lib/asn1/src/asn1ct_parser2.erl')
| -rw-r--r-- | lib/asn1/src/asn1ct_parser2.erl | 2536 |
1 files changed, 798 insertions, 1738 deletions
diff --git a/lib/asn1/src/asn1ct_parser2.erl b/lib/asn1/src/asn1ct_parser2.erl index 3891fce8d3..120ca67226 100644 --- a/lib/asn1/src/asn1ct_parser2.erl +++ b/lib/asn1/src/asn1ct_parser2.erl @@ -4,23 +4,24 @@ %% %% 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/. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at %% -%% 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. +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% %% %% -module(asn1ct_parser2). --export([parse/1]). +-export([parse/2,format_error/1]). -include("asn1_records.hrl"). %% Only used internally within this module. @@ -28,26 +29,34 @@ -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 +parse(File0, Tokens0) -> + try do_parse(Tokens0) of + {ok,#module{}}=Result -> + Result + catch + throw:{asn1_error,Fun} when is_function(Fun, 0) -> + handle_parse_error(File0, Fun()); + throw:{asn1_error,{parse_error,Tokens}} -> + handle_parse_error(File0, Tokens) + after + clean_process_dictionary() + end. + +handle_parse_error(File0, [Token|_]) -> + File = filename:basename(File0), + Line = get_line(Token), + Error = {structured_error,{File,Line},?MODULE, + {syntax_error,get_token(Token)}}, + {error,[Error]}. + +do_parse(Tokens0) -> + {ModuleDefinition,Tokens1} = parse_ModuleDefinition(Tokens0), + {Types,Tokens2} = parse_AssignmentList(Tokens1), + case Tokens2 of + [{'END',_}|_Rest3] -> + {ok,ModuleDefinition#module{typeorval=Types}}; + _ -> + parse_error(Tokens2) end. clean_process_dictionary() -> @@ -57,6 +66,11 @@ clean_process_dictionary() -> _ = erase(extensiondefault), ok. +format_error({syntax_error,Token}) when is_atom(Token) -> + io_lib:format("syntax error before: '~s'", [Token]); +format_error({syntax_error,Token}) -> + io_lib:format("syntax error before: '~p'", [Token]). + parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) -> put(asn1_module,ModuleIdentifier), {_DefinitiveIdentifier,Rest02} = @@ -70,9 +84,7 @@ parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) -> [{'DEFINITIONS',_}|Rest03] -> Rest03; _ -> - throw({asn1_error,{get_line(hd(Rest02)),get(asn1_module), - [got,get_token(hd(Rest02)), - expected,'DEFINITIONS']}}) + parse_error(Rest02) end, {TagDefault,Rest2} = case Rest of @@ -104,12 +116,11 @@ parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) -> 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"]}}) + _ -> + parse_error(Rest3) end; parse_ModuleDefinition(Tokens) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected,typereference]}}). + parse_error(Tokens). parse_Exports([{'EXPORTS',_L1},{';',_L2}|Rest]) -> {{exports,[]},Rest}; @@ -122,8 +133,7 @@ parse_Exports([{'EXPORTS',_L1}|Rest]) -> [{';',_}|Rest3] -> {{exports,SymbolList},Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,';']}}) + parse_error(Rest2) end; parse_Exports(Rest) -> {{exports,all},Rest}. @@ -137,29 +147,25 @@ parse_SymbolList(Tokens,Acc) -> [{',',_L1}|Rest2] -> parse_SymbolList(Rest2,[Symbol|Acc]); Rest2 -> - {lists:reverse([Symbol|Acc]),Rest2} + {lists:reverse(Acc, [Symbol]),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]) -> +parse_Reference([#identifier{}=Vref,{'{',_L2},{'}',_L3}|Rest]) -> {identifier2Extvalueref(Vref),Rest}; -parse_Reference([Vref = {identifier,_L1,_VName}|Rest]) -> +parse_Reference([#identifier{}=Vref|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_error(Tokens). parse_Imports([{'IMPORTS',_L1},{';',_L2}|Rest]) -> {{imports,[]},Rest}; @@ -168,9 +174,8 @@ parse_Imports([{'IMPORTS',_L1}|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,';']}}) + _ -> + parse_error(Rest2) end; parse_Imports(Tokens) -> {{imports,[]},Tokens}. @@ -180,11 +185,12 @@ parse_SymbolsFromModuleList(Tokens) -> parse_SymbolsFromModuleList(Tokens,Acc) -> {SymbolsFromModule,Rest} = parse_SymbolsFromModule(Tokens), - case (catch parse_SymbolsFromModule(Rest)) of + try parse_SymbolsFromModule(Rest) of {Sl,_Rest2} when is_record(Sl,'SymbolsFromModule') -> - parse_SymbolsFromModuleList(Rest,[SymbolsFromModule|Acc]); - _ -> - {lists:reverse([SymbolsFromModule|Acc]),Rest} + parse_SymbolsFromModuleList(Rest, [SymbolsFromModule|Acc]) + catch + throw:{asn1_error,_} -> + {lists:reverse(Acc, [SymbolsFromModule]),Rest} end. parse_SymbolsFromModule(Tokens) -> @@ -198,169 +204,154 @@ parse_SymbolsFromModule(Tokens) -> 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), + [{'FROM',_L1},{typereference,_,Name}=Tref| + [#identifier{},{',',_}|_]=Rest2] -> + NewSymbolList = lists:map(SetRefModuleName(Name), SymbolList), {#'SymbolsFromModule'{symbols=NewSymbolList, - module=tref2Exttref(Tref)},[Ref,C|Rest2]}; + module=tref2Exttref(Tref)},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), + [{'FROM',_L1},{typereference,_,Name}=Tref| + [#identifier{},{'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), + module=tref2Exttref(Tref)},Rest2}; + [{'FROM',_L1},{typereference,_,Name}=Tref,#identifier{}|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), + [{'FROM',_L1},{typereference,_,Name}=Tref|[{'{',_}|_]=Rest2] -> + {_ObjIdVal,Rest3} = parse_ObjectIdentifierValue(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), + [{'FROM',_L1},{typereference,_,Name}=Tref|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']]}}) + parse_error(Rest) end. parse_ObjectIdentifierValue([{'{',_}|Rest]) -> parse_ObjectIdentifierValue(Rest,[]). -parse_ObjectIdentifierValue([{number,_,Num}|Rest],Acc) -> +parse_ObjectIdentifierValue([{number,_,Num}|Rest], Acc) -> parse_ObjectIdentifierValue(Rest,[Num|Acc]); -parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {number,_,Num}, {')',_}|Rest],Acc) -> +parse_ObjectIdentifierValue([#identifier{val=Id},{'(',_},{number,_,Num},{')',_}|Rest], Acc) -> parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,Num}|Acc]); -parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {identifier,_,Id2}, {')',_}|Rest],Acc) -> +parse_ObjectIdentifierValue([#identifier{val=Id},{'(',_},#identifier{val=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) -> +parse_ObjectIdentifierValue([#identifier{val=Id},{'(',_},{typereference,_,Tref},{'.',_},#identifier{val=Id2}, {')',_}|Rest], Acc) -> + parse_ObjectIdentifierValue(Rest, [{'NamedNumber',Id,{'ExternalValue',Tref,Id2}}|Acc]); +parse_ObjectIdentifierValue([#identifier{}=Id|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_ObjectIdentifierValue(Tokens, _Acc) -> + parse_error(Tokens). -parse_AssignmentList(Tokens = [{'END',_}|_Rest]) -> - {[],Tokens}; -parse_AssignmentList(Tokens = [{'$end',_}|_Rest]) -> - {[],Tokens}; parse_AssignmentList(Tokens) -> - parse_AssignmentList(Tokens,[]). + parse_AssignmentList(Tokens, []). -parse_AssignmentList(Tokens= [{'END',_}|_Rest],Acc) -> +parse_AssignmentList([{'END',_}|_]=Tokens, Acc) -> {lists:reverse(Acc),Tokens}; -parse_AssignmentList(Tokens= [{'$end',_}|_Rest],Acc) -> +parse_AssignmentList([{'$end',_}|_]=Tokens, 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, +parse_AssignmentList(Tokens0, Acc) -> + {Assignment,Tokens} = parse_Assignment(Tokens0), + parse_AssignmentList(Tokens, [Assignment|Acc]). + +parse_Assignment([{typereference,L1,Name},{'::=',_}|Tokens0]) -> + %% 1) Type ::= TypeDefinition + %% 2) CLASS-NAME ::= CLASS {...} + Flist = [{type,fun parse_Type/1}, + {class,fun parse_ObjectClass/1}], + case parse_or_tag(Tokens0, Flist) of + {{type,Type},Tokens} -> + %% TypeAssignment + {#typedef{pos=L1,name=Name,typespec=Type},Tokens}; + {{class,Type},Tokens} -> + %% ObjectClassAssignment + {#classdef{pos=L1,name=Name,module=resolve_module(Type), + typespec=Type},Tokens} + end; +parse_Assignment([{typereference,_,_},{'{',_}|_]=Tokens) -> + %% 1) Type{...} ::= ... + %% 2) ValueSet{...} Type ::= ... + %% ObjectSet{...} CLASS-NAME ::= CLASS {...} + %% 3) CLASS-NAME{...} ::= CLASS {...} + %% A parameterized value set and and a parameterized object set + %% cannot be distinguished from each other without type information. + Flist = [fun parse_ParameterizedTypeAssignment/1, + fun parse_ParameterizedValueSetTypeAssignment/1, + fun parse_ParameterizedObjectClassAssignment/1], + parse_or(Tokens, Flist); +parse_Assignment([{typereference,_,_}|_]=Tokens) -> + %% 1) ObjectSet CLASS-NAME ::= ... + %% 2) ValueSet Type ::= ... + Flist = [fun parse_ObjectSetAssignment/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_Assignment([#identifier{},{'{',_}|_]=Tokens) -> + %% 1) value{...} Type ::= ... + %% 2) object{...} CLASS-NAME ::= ... + Flist = [fun parse_ParameterizedValueAssignment/1, + fun parse_ParameterizedObjectAssignment/1], + parse_or(Tokens, Flist); +parse_Assignment([#identifier{}|_]=Tokens) -> + %% 1) value Type ::= ... + %% 2) object CLASS-NAME ::= ... + Flist = [fun parse_ValueAssignment/1, + fun parse_ObjectAssignment/1], + parse_or(Tokens, Flist); +parse_Assignment(Tokens) -> + parse_error(Tokens). 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)) +parse_or(Tokens, [Fun|Funs], ErrList) when is_function(Fun, 1) -> + try Fun(Tokens) of + {_,Rest}=Result when is_list(Rest) -> + Result + catch + throw:{asn1_error,Error} -> + parse_or(Tokens, Funs, [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)) +parse_or(_Tokens, [], ErrList) -> + throw({asn1_error,fun() -> prioritize_error(ErrList) end}). + +parse_or_tag(Tokens, Flist) -> + parse_or_tag(Tokens, Flist, []). + +parse_or_tag(Tokens, [{Tag,Fun}|Funs], ErrList) when is_function(Fun, 1) -> + try Fun(Tokens) of + {Parsed,Rest} when is_list(Rest) -> + {{Tag,Parsed},Rest} + catch + throw:{asn1_error,Error} -> + parse_or_tag(Tokens, Funs, [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_or_tag(_Tokens, [], ErrList) -> + throw({asn1_error,fun() -> prioritize_error(ErrList) end}). + +prioritize_error(Errors0) -> + Errors1 = prioritize_error_1(Errors0), + Errors2 = [{length(L),L} || L <- Errors1], + Errors = lists:sort(Errors2), + [Res|_] = [L || {_,L} <- Errors], + Res. + +prioritize_error_1([F|T]) when is_function(F, 0) -> + [F()|prioritize_error_1(T)]; +prioritize_error_1([{parse_error,Tokens}|T]) -> + [Tokens|prioritize_error_1(T)]; +prioritize_error_1([]) -> + []. -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 %% @@ -370,9 +361,8 @@ parse_TypeAssignment([H|_T]) -> %% parse_Type(Tokens) -> {Tag,Rest3} = case Tokens of - [Lbr= {'[',_}|Rest] -> - parse_Tag([Lbr|Rest]); - Rest-> {[],Rest} + [{'[',_}|_] -> parse_Tag(Tokens); + _ -> {[],Tokens} end, {Tag2,Rest4} = case Rest3 of [{'IMPLICIT',_}|Rest31] when is_record(Tag,tag)-> @@ -384,31 +374,17 @@ parse_Type(Tokens) -> 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 hd(Rest5) of - {'(',_} -> + Flist = [fun parse_BuiltinType/1, + fun parse_ReferencedType/1, + fun parse_TypeWithConstraint/1], + {Type,Rest5} = parse_or(Rest4, Flist), + case Rest5 of + [{'(',_}|_] -> {Constraints,Rest6} = parse_Constraints(Rest5), - if is_record(Type,type) -> - {Type#type{constraint=merge_constraints(Constraints), - tag=Tag2},Rest6}; - true -> - {#type{def=Type,constraint=merge_constraints(Constraints), - tag=Tag2},Rest6} - end; - _ -> - if is_record(Type,type) -> - {Type#type{tag=Tag2},Rest5}; - true -> - {#type{def=Type,tag=Tag2},Rest5} - end + {Type#type{tag=Tag2, + constraint=merge_constraints(Constraints)},Rest6}; + [_|_] -> + {Type#type{tag=Tag2},Rest5} end. parse_BuiltinType([{'BIT',_},{'STRING',_}|Rest]) -> @@ -419,11 +395,10 @@ parse_BuiltinType([{'BIT',_},{'STRING',_}|Rest]) -> [{'}',_}|Rest4] -> {#type{def={'BIT STRING',NamedNumberList}},Rest4}; _ -> - throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module), - [got,get_token(hd(Rest3)),expected,'}']}}) + parse_error(Rest3) end; _ -> - {{'BIT STRING',[]},Rest} + {#type{def={'BIT STRING',[]}},Rest} end; parse_BuiltinType([{'BOOLEAN',_}|Rest]) -> {#type{def='BOOLEAN'},Rest}; @@ -435,41 +410,33 @@ 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), + {L0,Rest2} = parse_AlternativeTypeLists(Rest), case Rest2 of [{'}',_}|Rest3] -> - AlternativeTypeLists2 = - case {[Ext||Ext = #'EXTENSIONMARK'{} <- AlternativeTypeLists1], - get(extensiondefault)} of - {[],'IMPLIED'} -> AlternativeTypeLists1 ++ [#'EXTENSIONMARK'{}]; - _ -> AlternativeTypeLists1 + NeedExt = not lists:keymember('EXTENSIONMARK', 1, L0) andalso + get(extensiondefault) =:= 'IMPLIED', + L = case NeedExt of + true -> + L0 ++ [#'EXTENSIONMARK'{}]; + false -> + L0 end, - - {#type{def={'CHOICE',AlternativeTypeLists2}},Rest3}; + {#type{def={'CHOICE',L}},Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,'}']}}) + parse_error(Rest2) end; parse_BuiltinType([{'EMBEDDED',_},{'PDV',_}|Rest]) -> {#type{def='EMBEDDED PDV'},Rest}; parse_BuiltinType([{'ENUMERATED',_},{'{',_}|Rest]) -> - {Enumerations,Rest2} = parse_Enumerations(Rest,get(extensiondefault)), + {Enumerations,Rest2} = parse_Enumerations(Rest), 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,'}']}}) + parse_error(Rest2) end; parse_BuiltinType([{'EXTERNAL',_}|Rest]) -> {#type{def='EXTERNAL'},Rest}; - -% InstanceOfType parse_BuiltinType([{'INSTANCE',_},{'OF',_}|Rest]) -> {DefinedObjectClass,Rest2} = parse_DefinedObjectClass(Rest), case Rest2 of @@ -480,9 +447,6 @@ parse_BuiltinType([{'INSTANCE',_},{'OF',_}|Rest]) -> _ -> {#type{def={'INSTANCE OF',DefinedObjectClass,[]}},Rest2} end; - -% parse_BuiltinType(Tokens) -> - parse_BuiltinType([{'INTEGER',_}|Rest]) -> case Rest of [{'{',_}|Rest2] -> @@ -491,17 +455,13 @@ parse_BuiltinType([{'INTEGER',_}|Rest]) -> [{'}',_}|Rest4] -> {#type{def={'INTEGER',NamedNumberList}},Rest4}; _ -> - throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module), - [got,get_token(hd(Rest3)),expected,'}']}}) + parse_error(Rest3) 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]) -> @@ -529,18 +489,14 @@ parse_BuiltinType([{'SEQUENCE',_},{'{',_},{'...',Line},{'!',_}|Rest]) -> parse_ComponentTypeLists2(Rest2,[#'EXTENSIONMARK'{pos=Line}]), case Rest3 of [{'}',_}|Rest4] -> - {#type{def=#'SEQUENCE'{components=ComponentTypeLists}},Rest4}; + {#type{def=#'SEQUENCE'{components=ComponentTypeLists}},Rest4}; _ -> - throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module), - [got,get_token(hd(Rest3)),expected,'}']}}) + parse_error(Rest3) 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 + case Rest2 of [{'}',_}|Rest3] -> ComponentTypeLists2 = case {[Ext||Ext = #'EXTENSIONMARK'{} <- ComponentTypeLists], @@ -551,25 +507,19 @@ parse_BuiltinType([{'SEQUENCE',_},{'{',_}|Rest]) -> {#type{def=#'SEQUENCE'{components = ComponentTypeLists2}}, Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,'}']}}) + parse_error(Rest2) 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{def=Type,tag=[]}}},Rest2}; - -parse_BuiltinType([{'SEQUENCE',_},{'OF',_},{identifier,_,_} |Rest]) -> +parse_BuiltinType([{'SEQUENCE',_},{'OF',_}| + [#identifier{},{'<',_}|_]=Tokens0]) -> + {Type,Tokens} = parse_SelectionType(Tokens0), + {#type{def={'SEQUENCE OF',Type}},Tokens}; +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]) -> @@ -581,12 +531,18 @@ parse_BuiltinType([{'SET',_},{'{',_},{'...',Line},{'!',_}|Rest]) -> val = ExceptionIdentification}]}}, Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,'}']}}) + {ComponentTypeLists,Rest3}= + parse_ComponentTypeLists2(Rest2,[#'EXTENSIONMARK'{pos=Line}]), + case Rest3 of + [{'}',_}|Rest4] -> + {#type{def=#'SET'{components=ComponentTypeLists}},Rest4}; + _ -> + parse_error(Rest3) + end end; parse_BuiltinType([{'SET',_},{'{',_}|Rest]) -> {ComponentTypeLists,Rest2} = parse_ComponentTypeLists(Rest), - case Rest2 of + case Rest2 of [{'}',_}|Rest3] -> ComponentTypeLists2 = case {[Ext||Ext = #'EXTENSIONMARK'{} <- ComponentTypeLists], @@ -597,184 +553,128 @@ parse_BuiltinType([{'SET',_},{'{',_}|Rest]) -> {#type{def=#'SET'{components = ComponentTypeLists2}}, Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,'}']}}) + parse_error(Rest2) 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{def=Type,tag=[]}}},Rest2}; - - -parse_BuiltinType([{'SET',_},{'OF',_},{identifier,_,_}|Rest]) -> +parse_BuiltinType([{'SET',_},{'OF',_}| + [#identifier{},{'<',_}|_]=Tokens0]) -> + {Type,Tokens} = parse_SelectionType(Tokens0), + {#type{def={'SET OF',Type}},Tokens}; +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]) -> +parse_BuiltinType([{'ANY',_},{'DEFINED',_},{'BY',_},#identifier{val=Id}|Rest]) -> + %% For compatibility with the old standard. {#type{def={'ANY_DEFINED_BY',Id}},Rest}; parse_BuiltinType([{'ANY',_}|Rest]) -> + %% For compatibility with the old standard. {#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]), +parse_TypeWithConstraint([{'SEQUENCE',_}|[{'(',_}|_]=Rest0]) -> + {Constraint,Rest2} = parse_Constraint(Rest0), Rest4 = case Rest2 of - [{'OF',_}, {identifier,_,_Id}|Rest3] -> + [{'OF',_},#identifier{}|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']}}) + parse_error(Rest2) 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]), +parse_TypeWithConstraint([{'SEQUENCE',_},{'SIZE',_}|[{'(',_}|_]=Rest0]) -> + {Constraint,Rest2} = parse_Constraint(Rest0), #constraint{c=C} = Constraint, - Constraint2 = Constraint#constraint{c={'SizeConstraint',C}}, + Constraint2 = Constraint#constraint{c={element_set,{'SizeConstraint',C}, + none}}, Rest4 = case Rest2 of - [{'OF',_}, {identifier,_,_Id}|Rest3] -> + [{'OF',_},#identifier{}|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']}}) + parse_error(Rest2) 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]), +parse_TypeWithConstraint([{'SET',_}|[{'(',_}|_]=Rest0]) -> + {Constraint,Rest2} = parse_Constraint(Rest0), Rest4 = case Rest2 of - [{'OF',_}, {identifier,_,_Id}|Rest3] -> + [{'OF',_},#identifier{}|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']}}) + parse_error(Rest2) 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]), +parse_TypeWithConstraint([{'SET',_},{'SIZE',_}|[{'(',_}|_]=Rest0]) -> + {Constraint,Rest2} = parse_Constraint(Rest0), #constraint{c=C} = Constraint, - Constraint2 = Constraint#constraint{c={'SizeConstraint',C}}, + Constraint2 = Constraint#constraint{c={element_set, + {'SizeConstraint',C},none}}, Rest4 = case Rest2 of - [{'OF',_}, {identifier,_,_Id}|Rest3] -> + [{'OF',_},#identifier{}|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']}}) + parse_error(Rest2) 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_error(Tokens). %% -------------------------- parse_ReferencedType(Tokens) -> - Flist = [fun parse_DefinedType/1, + Flist = [fun parse_ParameterizedType/1, + fun parse_DefinedType/1, fun parse_SelectionType/1, - fun parse_TypeFromObject/1, - fun parse_ValueSetFromObjects/1], - case (catch parse_or(Tokens,Flist)) of - {'EXIT',Reason} -> - exit(Reason); - AsnErr = {asn1_error,_} -> - throw(AsnErr); - Result -> - Result - end. + fun parse_TypeFromObject/1], + parse_or(Tokens, Flist). -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]) -> - case is_pre_defined_class(TypeName) of - false -> - {#type{def = #'Externaltypereference'{pos=L1,module=resolve_module(TypeName), - type=TypeName}},Rest}; - _ -> - throw({asn1_error, - {L1,get(asn1_module), - [got,TypeName,expected, - [typereference,'typereference.typereference', - 'typereference typereference']]}}) - end; +parse_DefinedType([{typereference,L1,Module}, + {'.',_}, + {typereference,_,TypeName}|Tokens]) -> + {#type{def = #'Externaltypereference'{pos=L1,module=Module, + type=TypeName}},Tokens}; +parse_DefinedType([{typereference,_,_}=Tr|Tokens]) -> + {#type{def=tref2Exttref(Tr)},Tokens}; 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_error(Tokens). -parse_SelectionType([{identifier,_,Name},{'<',_}|Rest]) -> +parse_SelectionType([#identifier{val=Name},{'<',_}|Rest]) -> {Type,Rest2} = parse_Type(Rest), - {{'SelectionType',Name,Type},Rest2}; + {#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 <']}}). + parse_error(Tokens). resolve_module(Type) -> @@ -787,30 +687,13 @@ resolve_module(_Type, Current, undefined) -> resolve_module(Type, Current, Imports) -> case [Mod || #'SymbolsFromModule'{symbols = S, module = Mod} <- Imports, #'Externaltypereference'{type = T} <- S, - Type == T] of + 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,[]). @@ -819,9 +702,9 @@ parse_Constraints(Tokens,Acc) -> {Constraint,Rest} = parse_Constraint(Tokens), case Rest of [{'(',_}|_Rest2] -> - parse_Constraints(Rest,[Constraint|Acc]); + parse_Constraints(Rest, [Constraint|Acc]); _ -> - {lists:reverse([Constraint|Acc]),Rest} + {lists:reverse(Acc, [Constraint]),Rest} end. parse_Constraint([{'(',_}|Rest]) -> @@ -830,46 +713,27 @@ parse_Constraint([{'(',_}|Rest]) -> 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_error(Rest3) + end. 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_or(Tokens, Flist). 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_error(Tokens). 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_or(Tokens, Flist). parse_TypeColonValue(Tokens) -> {Type,Rest} = parse_Type(Tokens), @@ -877,32 +741,28 @@ parse_TypeColonValue(Tokens) -> [{':',_}|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,':']}}) + [_|_] -> + parse_error(Rest) end. parse_SubtypeConstraint(Tokens) -> parse_ElementSetSpecs(Tokens). -parse_ElementSetSpecs([{'...',_}|Rest]) -> - {Elements,Rest2} = parse_ElementSetSpec(Rest), - {{[],Elements},Rest2}; parse_ElementSetSpecs(Tokens) -> {RootElems,Rest} = parse_ElementSetSpec(Tokens), case Rest of [{',',_},{'...',_},{',',_}|Rest2] -> {AdditionalElems,Rest3} = parse_ElementSetSpec(Rest2), - {{RootElems,AdditionalElems},Rest3}; + {{element_set,RootElems,AdditionalElems},Rest3}; [{',',_},{'...',_}|Rest2] -> - {{RootElems,[]},Rest2}; + {{element_set,RootElems,empty},Rest2}; _ -> - {RootElems,Rest} + {{element_set,RootElems,none},Rest} end. parse_ElementSetSpec([{'ALL',_},{'EXCEPT',_}|Rest]) -> {Exclusions,Rest2} = parse_Elements(Rest), - {{'ALL',{'EXCEPT',Exclusions}},Rest2}; + {{'ALL-EXCEPT',Exclusions},Rest2}; parse_ElementSetSpec(Tokens) -> parse_Unions(Tokens). @@ -918,14 +778,8 @@ parse_Unions(Tokens) -> case {InterSec,Unions} of {InterSec,[]} -> {InterSec,Rest2}; - {{'SingleValue',V1},{'SingleValue',V2}} -> - {{'SingleValue',ordsets:union(to_set(V1),to_set(V2))},Rest2}; - {V1,V2} when is_list(V2) -> - {[V1] ++ [union|V2],Rest2}; {V1,V2} -> - {[V1,union,V2],Rest2} -% Other -> -% throw(Other) + {{union,V1,V2},Rest2} end. parse_UnionsRec([{'|',_}|Rest]) -> @@ -934,12 +788,8 @@ parse_UnionsRec([{'|',_}|Rest]) -> case {InterSec,URec} of {V1,[]} -> {V1,Rest3}; - {{'SingleValue',V1},{'SingleValue',V2}} -> - {{'SingleValue',ordsets:union(to_set(V1),to_set(V2))},Rest3}; - {V1,V2} when is_list(V2) -> - {[V1] ++ [union|V2],Rest3}; {V1,V2} -> - {[V1,union,V2],Rest3} + {{union,V1,V2},Rest3} end; parse_UnionsRec([{'UNION',Info}|Rest]) -> parse_UnionsRec([{'|',Info}|Rest]); @@ -952,13 +802,8 @@ parse_Intersections(Tokens) -> case {InterSec,IRec} of {V1,[]} -> {V1,Rest2}; - {{'SingleValue',V1},{'SingleValue',V2}} -> - {{'SingleValue', - ordsets:intersection(to_set(V1),to_set(V2))},Rest2}; - {V1,V2} when is_list(V2) -> - {[V1] ++ [intersection|V2],Rest2}; {V1,V2} -> - {[V1,intersection,V2],Rest2} + {{intersection,V1,V2},Rest2} end. %% parse_IElemsRec(Tokens) -> Result @@ -967,15 +812,10 @@ parse_IElemsRec([{'^',_}|Rest]) -> {InterSec,Rest2} = parse_IntersectionElements(Rest), {IRec,Rest3} = parse_IElemsRec(Rest2), case {InterSec,IRec} of - {{'SingleValue',V1},{'SingleValue',V2}} -> - {{'SingleValue', - ordsets:intersection(to_set(V1),to_set(V2))},Rest3}; {V1,[]} -> - {V1,Rest3}; - {V1,V2} when is_list(V2) -> - {[V1] ++ [intersection|V2],Rest3}; + {V1,Rest2}; {V1,V2} -> - {[V1,intersection,V2],Rest3} + {{intersection,V1,V2},Rest3} end; parse_IElemsRec([{'INTERSECTION',Info}|Rest]) -> parse_IElemsRec([{'^',Info}|Rest]); @@ -992,7 +832,7 @@ parse_IntersectionElements(Tokens) -> case Rest of [{'EXCEPT',_}|Rest2] -> {Exclusion,Rest3} = parse_Elements(Rest2), - {{InterSec,{'EXCEPT',Exclusion}},Rest3}; + {{'EXCEPT',InterSec,Exclusion},Rest3}; Rest -> {InterSec,Rest} end. @@ -1006,102 +846,73 @@ parse_Elements([{'(',_}|Rest]) -> case Rest2 of [{')',_}|Rest3] -> {Elems,Rest3}; - [H|_T] -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,')']}}) + [_|_] -> + parse_error(Rest2) 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_or(Tokens, Flist). %% -------------------------- -parse_DefinedObjectClass([{typereference,_,_ModName},{'.',_},Tr={typereference,_,_ObjClName}|Rest]) -> -%% {{objectclassname,ModName,ObjClName},Rest}; -% {{objectclassname,tref2Exttref(Tr)},Rest}; - {tref2Exttref(Tr),Rest}; +parse_DefinedObjectClass([{typereference,_,ModName},{'.',_}, + {typereference,Pos,Name}|Tokens]) -> + Ext = #'Externaltypereference'{pos=Pos, + module=ModName, + type=Name}, + {Ext,Tokens}; 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_error(Tokens). 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. + Flist = [fun parse_ObjectClassDefn/1, + fun parse_DefinedObjectClass/1], + parse_or(Tokens, Flist). 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_error(Tokens). 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); +parse_FieldSpec(Tokens0, Acc) -> + Fl = case Tokens0 of + [{valuefieldreference,_,_}|_] -> + %% 1) &field Type + %% &object CLASS-NAME + %% 2) &field &FieldName + %% A fixed type field cannot be distinguished from + %% an object field without type information. + [fun parse_FixedTypeValueFieldSpec/1, + fun parse_VariableTypeValueFieldSpec/1]; + [{typefieldreference,_,_}|_] -> + %% 1) &Set Type + %% &ObjectSet CLASS-NAME + %% 2) &Set &FieldName + %% 3) &Type + %% A value set and an object cannot be distinguished + %% without type information. + [fun parse_FixedTypeValueSetFieldSpec/1, + fun parse_VariableTypeValueSetFieldSpec/1, + fun parse_TypeFieldSpec/1]; + [_|_] -> + parse_error(Tokens0) + end, + case parse_or(Tokens0, Fl) of {Type,[{'}',_}|Rest]} -> - {lists:reverse([Type|Acc]),Rest}; + {lists:reverse(Acc, [Type]),Rest}; {Type,[{',',_}|Rest2]} -> - parse_FieldSpec(Rest2,[Type|Acc]); - {_,[H|_T]} -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,'}']}}) + parse_FieldSpec(Rest2, [Type|Acc]) end. parse_PrimitiveFieldName([{typefieldreference,_,FieldName}|Rest]) -> @@ -1109,27 +920,19 @@ parse_PrimitiveFieldName([{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_error(Tokens). 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) -> +parse_FieldName([{'.',_}|Rest0],Acc) -> + {FieldName,Rest1} = parse_PrimitiveFieldName(Rest0), + parse_FieldName(Rest1, [FieldName|Acc]); +parse_FieldName(Tokens, Acc) -> {lists:reverse(Acc),Tokens}. -parse_FixedTypeValueFieldSpec([{valuefieldreference,L1,VFieldName}|Rest]) -> +parse_FixedTypeValueFieldSpec([{valuefieldreference,_,VFieldName}|Rest]) -> {Type,Rest2} = parse_Type(Rest), {Unique,Rest3} = case Rest2 of @@ -1139,109 +942,61 @@ parse_FixedTypeValueFieldSpec([{valuefieldreference,L1,VFieldName}|Rest]) -> {undefined,Rest2} end, {OptionalitySpec,Rest5} = parse_ValueOptionalitySpec(Rest3), - case {Unique,Rest5} of - {'UNIQUE',[{Del,_}|_]} when Del =:= ','; Del =:= '}' -> - case OptionalitySpec of - {'DEFAULT',_} -> - throw({asn1_error, - {L1,get(asn1_module), - ['UNIQUE and DEFAULT in same field',VFieldName]}}); - _ -> - {{fixedtypevaluefield,VFieldName,Type,Unique,OptionalitySpec},Rest5} - end; - {_,[{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]}}). + case is_end_delimiter(Rest5) of + false -> parse_error(Rest5); + true -> ok + end, + Tag = case Unique of + 'UNIQUE' -> fixedtypevaluefield; + _ -> object_or_fixedtypevalue_field + end, + {{Tag,VFieldName,Type,Unique,OptionalitySpec},Rest5}. + +parse_VariableTypeValueFieldSpec([{valuefieldreference,_,VFieldName}|Rest0]) -> + {FieldRef,Rest1} = parse_FieldName(Rest0), + {OptionalitySpec,Rest} = parse_ValueOptionalitySpec(Rest1), + case is_end_delimiter(Rest) of + true -> + {{variabletypevaluefield,VFieldName,FieldRef,OptionalitySpec}, + Rest}; + false -> + parse_error(Rest) + end. -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_TypeFieldSpec([{typefieldreference,_,Name}|Rest0]) -> + {OptionalitySpec,Rest} = parse_TypeOptionalitySpec(Rest0), + case is_end_delimiter(Rest) of + true -> + {{typefield,Name,OptionalitySpec},Rest}; + false -> + parse_error(Rest) + end. -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_FixedTypeValueSetFieldSpec([{typefieldreference,_,Name}|Rest0]) -> + {Type,Rest1} = parse_Type(Rest0), + {OptionalitySpec,Rest} = parse_ValueSetOptionalitySpec(Rest1), + case is_end_delimiter(Rest) of + true -> + {{objectset_or_fixedtypevalueset_field,Name,Type, + OptionalitySpec},Rest}; + false -> + parse_error(Rest) + end. -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_VariableTypeValueSetFieldSpec([{typefieldreference,_,Name}|Rest0]) -> + {FieldRef,Rest1} = parse_FieldName(Rest0), + {OptionalitySpec,Rest} = parse_ValueSetOptionalitySpec(Rest1), + case is_end_delimiter(Rest) of + true -> + {{variabletypevaluesetfield,Name,FieldRef,OptionalitySpec}, + Rest}; + false -> + parse_error(Rest) + end. -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]}}). +is_end_delimiter([{',',_}|_]) -> true; +is_end_delimiter([{'}',_}|_]) -> true; +is_end_delimiter([_|_]) -> false. parse_ValueOptionalitySpec(Tokens)-> case Tokens of @@ -1252,15 +1007,6 @@ parse_ValueOptionalitySpec(Tokens)-> _ -> {'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}; @@ -1279,65 +1025,44 @@ parse_ValueSetOptionalitySpec(Tokens) -> _ -> {'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_error(Tokens). -parse_SyntaxList(Tokens,Acc) -> +parse_SyntaxList(Tokens, Acc) -> {SyntaxList,Rest} = parse_TokenOrGroupSpec(Tokens), case Rest of [{'}',_}|Rest2] -> - {lists:reverse([SyntaxList|Acc]),Rest2}; + {lists:reverse(Acc, [SyntaxList]),Rest2}; _ -> - parse_SyntaxList(Rest,[SyntaxList|Acc]) + 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_or(Tokens, Flist). -parse_RequiredToken([{typereference,L1,WordName}|Rest]) -> +parse_RequiredToken([{typereference,_,WordName}|Rest]=Tokens) -> case is_word(WordName) of false -> - throw({asn1_error,{L1,get(asn1_module), - [got,WordName,expected,a,'Word']}}); + parse_error(Tokens); true -> {WordName,Rest} end; parse_RequiredToken([{',',L1}|Rest]) -> {{',',L1},Rest}; -parse_RequiredToken([{WordName,L1}|Rest]) -> +parse_RequiredToken([{WordName,_}|Rest]=Tokens) -> case is_word(WordName) of false -> - throw({asn1_error,{L1,get(asn1_module), - [got,WordName,expected,a,'Word']}}); + parse_error(Tokens); true -> {WordName,Rest} end; @@ -1347,7 +1072,9 @@ parse_RequiredToken(Tokens) -> parse_OptionalGroup([{'[',_}|Rest]) -> {Spec,Rest2} = parse_TokenOrGroupSpec(Rest), {SpecList,Rest3} = parse_OptionalGroup(Rest2,[Spec]), - {SpecList,Rest3}. + {SpecList,Rest3}; +parse_OptionalGroup(Tokens) -> + parse_error(Tokens). parse_OptionalGroup([{']',_}|Rest],Acc) -> {lists:reverse(Acc),Rest}; @@ -1355,82 +1082,55 @@ parse_OptionalGroup(Tokens,Acc) -> {Spec,Rest} = parse_TokenOrGroupSpec(Tokens), parse_OptionalGroup(Rest,[Spec|Acc]). -parse_DefinedObject([Id={identifier,_,_ObjName}|Rest]) -> +parse_DefinedObject([#identifier{}=Id|Rest]) -> {{object,identifier2Extvalueref(Id)},Rest}; -parse_DefinedObject([{typereference,L1,ModName},{'.',_},{identifier,_,ObjName}|Rest]) -> +parse_DefinedObject([{typereference,L1,ModName},{'.',_},#identifier{val=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_error(Tokens). -parse_ObjectAssignment([{identifier,L1,ObjName}|Rest]) -> +parse_ObjectAssignment([#identifier{pos=L1,val=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_error(Rest2) + end. %% 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. + %% The ObjectFromObject production is not included here, + %% since it will have been catched by the ValueFromObject + %% before we reach this point. + Flist = [fun parse_ObjectDefn/1, + fun parse_DefinedObject/1], + parse_or(Tokens, Flist). 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_or(Tokens, Flist). -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_error(Tokens). -parse_DefaultSyntax(Tokens,Acc) -> +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,[',','}']]}}) + {{object,defaultsyntax,lists:reverse(Acc, [Setting])},Rest3}; + _ -> + parse_error(Rest) end. parse_FieldSetting(Tokens) -> @@ -1439,7 +1139,9 @@ parse_FieldSetting(Tokens) -> {{PrimFieldName,Setting},Rest2}. parse_DefinedSyntax([{'{',_}|Rest]) -> - parse_DefinedSyntax(Rest,[]). + parse_DefinedSyntax(Rest, []); +parse_DefinedSyntax(Tokens) -> + parse_error(Tokens). parse_DefinedSyntax(Tokens,Acc) -> case Tokens of @@ -1455,95 +1157,70 @@ parse_DefinedSyntax(Tokens,Acc) -> %% Literal ::= word | ',' %% Setting ::= Type | Value | ValueSet | Object | ObjectSet %% word equals typereference, but no lower cases -parse_DefinedSyntaxToken([{',',L1}|Rest]) -> - {{',',L1},Rest}; +parse_DefinedSyntaxToken([{',',_}=Comma|Rest]) -> + {Comma,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]) -> +parse_DefinedSyntaxToken([{typereference,_,_Name},{T,_}|_]=Tokens) + when T =:= '.'; T =:= '(' -> + parse_Setting(Tokens); +parse_DefinedSyntaxToken([{typereference,L1,Name}=TRef|Rest]=Tokens) -> case is_word(Name) of false -> case lookahead_definedsyntax(Rest) of word_or_setting -> {{setting,L1,tref2Exttref(TRef)},Rest}; - _ -> + setting -> 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 -> + try parse_Setting(Tokens) of + {_,_}=Result -> Result + catch + throw:{asn1_error,_} -> + parse_Word(Tokens) end. lookahead_definedsyntax([{typereference,_,Name}|_Rest]) -> - case is_word(Name) of + case is_word(Name) of true -> word_or_setting; - _ -> setting + false -> setting end; lookahead_definedsyntax([{'}',_}|_Rest]) -> word_or_setting; lookahead_definedsyntax(_) -> setting. -parse_Word([{Name,Pos}|Rest]) -> +parse_Word([{Name,Pos}|Rest]=Tokens) -> case is_word(Name) of false -> - throw({asn1_error,{Pos,get(asn1_module), - [got,Name, expected,a,'Word']}}); + parse_error(Tokens); true -> {{word_or_setting,Pos,tref2Exttref(Pos,Name)},Rest} - end. + end; +parse_Word(Tokens) -> + parse_error(Tokens). 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,_},_} -> + case parse_or_tag(Tokens, Flist) of + {{value_tag,_},_}=Result -> + %% Keep the value_tag. Result; {{Tag,Setting},Rest} when is_atom(Tag) -> + %% Remove all other tags. {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, @@ -1552,9 +1229,7 @@ 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_error(Tokens). parse_ObjectSetAssignment([{typereference,L1,ObjSetName}|Rest]) -> {Class,Rest2} = parse_DefinedObjectClass(Rest), @@ -1564,16 +1239,9 @@ parse_ObjectSetAssignment([{typereference,L1,ObjSetName}|Rest]) -> {#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_error(Rest2) + end. %% parse_ObjectSet(Tokens) -> {Ret,Rest} %% Tokens = [Tok] @@ -1590,26 +1258,20 @@ parse_ObjectSet([{'{',_}|Rest]) -> case Rest2 of [{'}',_}|Rest3] -> {ObjSetSpec,Rest3}; - [H|_T] -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,'}']}}) + _ -> + parse_error(Rest2) end; parse_ObjectSet(Tokens) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected,'{']}}). + parse_error(Tokens). -parse_ObjectSetSpec([{'...',_}|Rest]) -> - case Rest of - [{',',_}|Rest2] -> - {Elements,Rest3}=parse_ElementSetSpecs(Rest2), - {{[],Elements},Rest3}; - _ -> - {['EXTENSIONMARK'],Rest} - end; +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 @@ -1619,18 +1281,9 @@ parse_ObjectSetSpec(Tokens) -> %% 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, + Flist = [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_or(Tokens, Flist). parse_ObjectClassFieldType(Tokens) -> {Class,Rest} = parse_DefinedObjectClass(Tokens), @@ -1641,25 +1294,10 @@ parse_ObjectClassFieldType(Tokens) -> 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) + _ -> + parse_error(Rest) 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). @@ -1669,28 +1307,10 @@ parse_OpenTypeFieldVal(Tokens) -> [{':',_}|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,':']}}) + _ -> + parse_error(Rest) 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} | @@ -1702,18 +1322,11 @@ parse_OpenTypeFieldVal(Tokens) -> 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_or(Tokens, Flist). parse_ValueFromObject(Tokens) -> + %% This production also matches ObjectFromObject. {Objects,Rest} = parse_ReferencedObjects(Tokens), case Rest of [{'.',_}|Rest2] -> @@ -1722,35 +1335,10 @@ parse_ValueFromObject(Tokens) -> {valuefieldreference,_} -> {{'ValueFromObject',Objects,Name},Rest3}; _ -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,typefieldreference,expected, - valuefieldreference]}}) + parse_error(Rest2) 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_ValueSetFromObjects(Tokens) -> - {Objects,Rest} = parse_ReferencedObjects(Tokens), - case Rest of - [{'.',_}|Rest2] -> - {Name,Rest3} = parse_FieldName(Rest2), - case lists:last(Name) of - {typefieldreference,_FieldName} -> - {{'ValueSetFromObjects',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,'.'}}) + _ -> + parse_error(Rest) end. parse_TypeFromObject(Tokens) -> @@ -1760,28 +1348,12 @@ parse_TypeFromObject(Tokens) -> {Name,Rest3} = parse_FieldName(Rest2), case lists:last(Name) of {typefieldreference,_FieldName} -> - {{'TypeFromObject',Objects,Name},Rest3}; + {#type{def={'TypeFromObject',Objects,Name}},Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected, - typefieldreference]}}) + parse_error(Rest2) 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,'.']}}) + _ -> + parse_error(Rest) end. %% parse_ObjectSetFromObjects(Tokens) -> {Result,Rest} @@ -1799,23 +1371,12 @@ parse_ObjectSetFromObjects(Tokens) -> {typefieldreference,_FieldName} -> {{'ObjectSetFromObjects',Objects,Name},Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected, - typefieldreference]}}) + parse_error(Rest2) end; - [H|_T] -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,'.']}}) + _ -> + parse_error(Rest) end. -% parse_InstanceOfType([{'INSTANCE',_},{'OF',_}|Rest]) -> -% {Class,Rest2} = parse_DefinedObjectClass(Rest), -% {{'InstanceOfType',Class},Rest2}. - -% parse_InstanceOfValue(Tokens) -> -% parse_Value(Tokens). - - %% X.682 constraint specification @@ -1823,14 +1384,7 @@ 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_or(Tokens, Flist). parse_UserDefinedConstraint([{'CONSTRAINED',_},{'BY',_},{'{',_},{'}',_}|Rest])-> {{constrained_by,[]},Rest}; @@ -1841,32 +1395,23 @@ parse_UserDefinedConstraint([{'CONSTRAINED',_}, case Rest2 of [{'}',_}|Rest3] -> {{constrained_by,Param},Rest3}; - [H|_T] -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,'}']}}) + _ -> + parse_error(Rest2) 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_error(Tokens). parse_UserDefinedConstraintParameter(Tokens) -> - parse_UserDefinedConstraintParameter(Tokens,[]). -parse_UserDefinedConstraintParameter(Tokens,Acc) -> + parse_UserDefinedConstraintParameter(Tokens, []). + +parse_UserDefinedConstraintParameter(Tokens0, 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 + case parse_or(Tokens0, Flist) of + {Result,[{',',_}|Tokens]} -> + parse_UserDefinedConstraintParameter(Tokens, [Result|Acc]); + {Result,Tokens} -> + {lists:reverse(Acc, [Result]),Tokens} end. parse_GovernorAndActualParameter(Tokens) -> @@ -1875,26 +1420,18 @@ parse_GovernorAndActualParameter(Tokens) -> [{':',_}|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,':']}}) + _ -> + parse_error(Rest) 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_or(Tokens, Flist). parse_SimpleTableConstraint(Tokens) -> {ObjectSet,Rest} = parse_ObjectSet(Tokens), - {{simpletable,ObjectSet},Rest}. + {{element_set,{simpletable,ObjectSet},none},Rest}. parse_ComponentRelationConstraint([{'{',_}|Rest]) -> {ObjectSet,Rest2} = parse_DefinedObjectSet(Rest), @@ -1903,21 +1440,18 @@ parse_ComponentRelationConstraint([{'{',_}|Rest]) -> {AtNot,Rest4} = parse_AtNotationList(Rest3,[]), case Rest4 of [{'}',_}|Rest5] -> - {{componentrelation,ObjectSet,AtNot},Rest5}; - [H|_T] -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,'}']}}) + Ret = {element_set, + {componentrelation,ObjectSet,AtNot}, + none}, + {Ret,Rest5}; + _ -> + parse_error(Rest4) end; - [H|_T] -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected, - 'ComponentRelationConstraint',ended,with,'}']}}) -%%% Other -> -%%% throw(Other) + _ -> + parse_error(Rest2) end; parse_ComponentRelationConstraint(Tokens) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected,'{']}}). + parse_error(Tokens). parse_AtNotationList(Tokens,Acc) -> {AtNot,Rest} = parse_AtNotation(Tokens), @@ -1925,7 +1459,7 @@ parse_AtNotationList(Tokens,Acc) -> [{',',_}|Rest2] -> parse_AtNotationList(Rest2,[AtNot|Acc]); _ -> - {lists:reverse([AtNot|Acc]),Rest} + {lists:reverse(Acc, [AtNot]),Rest} end. parse_AtNotation([{'@',_},{'.',_}|Rest]) -> @@ -1935,20 +1469,17 @@ 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_error(Tokens). parse_ComponentIdList(Tokens) -> parse_ComponentIdList(Tokens,[]). -parse_ComponentIdList([Id = {identifier,_,_},{'.',_}|Rest],Acc) -> +parse_ComponentIdList([#identifier{}=Id,{'.',_}|Rest], Acc) -> parse_ComponentIdList(Rest,[identifier2Extvalueref(Id)|Acc]); -parse_ComponentIdList([Id = {identifier,_,_}|Rest],Acc) -> - {lists:reverse([identifier2Extvalueref(Id)|Acc]),Rest}; +parse_ComponentIdList([#identifier{}=Id|Rest], Acc) -> + {lists:reverse(Acc, [identifier2Extvalueref(Id)]),Rest}; parse_ComponentIdList(Tokens,_) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected, - [identifier,'identifier.']]}}). + parse_error(Tokens). parse_ContentsConstraint([{'CONTAINING',_}|Rest]) -> {Type,Rest2} = parse_Type(Rest), @@ -1963,24 +1494,14 @@ 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']}}). - + parse_error(Tokens). % 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_or(Tokens, Flist). parse_ActualParameter(Tokens) -> Flist = [fun parse_Type/1, @@ -1989,32 +1510,7 @@ parse_ActualParameter(Tokens) -> 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_or(Tokens, Flist). %% parse_ParameterizedTypeAssignment(Tokens) -> Result %% Result = {#ptypedef{},Rest} | throw() @@ -2025,18 +1521,13 @@ parse_ParameterizedTypeAssignment([{typereference,L1,Name}|Rest]) -> {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_error(Rest2) + end. %% parse_ParameterizedValueAssignment(Tokens) -> Result %% Result = {#pvaluedef{},Rest} | throw() -parse_ParameterizedValueAssignment([{identifier,L1,Name}|Rest]) -> +parse_ParameterizedValueAssignment([#identifier{pos=L1,val=Name}|Rest]) -> {ParameterList,Rest2} = parse_ParameterList(Rest), {Type,Rest3} = parse_Type(Rest2), case Rest3 of @@ -2044,13 +1535,9 @@ parse_ParameterizedValueAssignment([{identifier,L1,Name}|Rest]) -> {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_error(Rest3) + end. %% parse_ParameterizedValueSetTypeAssignment(Tokens) -> Result %% Result = {#pvaluesetdef{},Rest} | throw() @@ -2062,14 +1549,9 @@ parse_ParameterizedValueSetTypeAssignment([{typereference,L1,Name}|Rest]) -> {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_error(Rest3) + end. %% parse_ParameterizedObjectClassAssignment(Tokens) -> Result %% Result = {#ptypedef{},Rest} | throw() @@ -2080,18 +1562,13 @@ parse_ParameterizedObjectClassAssignment([{typereference,L1,Name}|Rest]) -> {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_error(Rest2) + end. %% parse_ParameterizedObjectAssignment(Tokens) -> Result %% Result = {#pobjectdef{},Rest} | throw() -parse_ParameterizedObjectAssignment([{identifier,L1,Name}|Rest]) -> +parse_ParameterizedObjectAssignment([#identifier{pos=L1,val=Name}|Rest]) -> {ParameterList,Rest2} = parse_ParameterList(Rest), {Class,Rest3} = parse_DefinedObjectClass(Rest2), case Rest3 of @@ -2099,36 +1576,9 @@ parse_ParameterizedObjectAssignment([{identifier,L1,Name}|Rest]) -> {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_error(Rest3) + end. %% parse_ParameterList(Tokens) -> Result %% Result = [Parameter] @@ -2137,35 +1587,24 @@ parse_ParameterizedObjectSetAssignment(Tokens) -> %% 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]) -> + parse_ParameterList(Tokens, []). parse_ParameterList(Tokens,Acc) -> {Parameter,Rest} = parse_Parameter(Tokens), case Rest of [{',',_}|Rest2] -> - parse_ParameterList(Rest2,[Parameter|Acc]); + 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,[',','}']]}}) + {lists:reverse(Acc, [Parameter]),Rest3}; + _ -> + parse_error(Rest) 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_or(Tokens, Flist). parse_ParamGovAndRef(Tokens) -> {ParamGov,Rest} = parse_ParamGovernor(Tokens), @@ -2173,86 +1612,54 @@ parse_ParamGovAndRef(Tokens) -> [{':',_}|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,':']}}) + _ -> + parse_error(Rest) 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_or(Tokens, Flist). 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_error(Tokens). parse_SimpleDefinedValue([{typereference,L1,ModuleName},{'.',_}, - {identifier,_,Value}|Rest]) -> + #identifier{val=Value}|Rest]) -> {{simpledefinedvalue,#'Externalvaluereference'{pos=L1,module=ModuleName, value=Value}},Rest}; -parse_SimpleDefinedValue([Id={identifier,_,_Value}|Rest]) -> +parse_SimpleDefinedValue([#identifier{}=Id|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_error(Tokens). parse_ParameterizedType(Tokens) -> + %% May also be a parameterized class. {Type,Rest} = parse_SimpleDefinedType(Tokens), {Params,Rest2} = parse_ActualParameterList(Rest), - {{pt,Type,Params},Rest2}. + {#type{def={pt,Type,Params}},Rest2}. parse_ParameterizedValue(Tokens) -> + %% May also be a parameterized object. {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_error(Tokens). parse_ActualParameterList(Tokens,Acc) -> {Parameter,Rest} = parse_ActualParameter(Tokens), @@ -2260,43 +1667,22 @@ parse_ActualParameterList(Tokens,Acc) -> [{',',_}|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) + {lists:reverse(Acc, [Parameter]),Rest3}; + _ -> + parse_error(Rest) end. - - - - - - -%------------------------- - +%% Test whether Token is allowed in a syntax list. is_word(Token) -> - case not_allowed_word(Token) of + List = atom_to_list(Token), + case not_allowed_word(List) 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 + false -> is_word_1(List) end. +is_word_1([H|T]) -> + check_first(H) andalso check_rest(T). + not_allowed_word(Name) -> lists:member(Name,["BIT", "BOOLEAN", @@ -2321,257 +1707,123 @@ not_allowed_word(Name) -> "TRUE", "UNION"]). -check_one_char_word([A]) when $A =< A, $Z >= A -> - true; -check_one_char_word([_]) -> - false. %% unknown item in SyntaxList +check_first(C) -> + $A =< C andalso C =< $Z. -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([R|Rs]) when $A =< R, R =< $Z; R =:= $- -> check_rest(Rs); check_rest([]) -> true; check_rest(_) -> false. +%%% +%%% Parse alternative type lists for CHOICE. +%%% + +parse_AlternativeTypeLists(Tokens0) -> + {Root,Tokens1} = parse_AlternativeTypeList(Tokens0), + case Tokens1 of + [{',',_}|Tokens2] -> + {ExtMarker,Tokens3} = parse_ExtensionAndException(Tokens2), + {ExtAlts,Tokens4} = parse_ExtensionAdditionAlternatives(Tokens3), + {_,Tokens} = parse_OptionalExtensionMarker(Tokens4, []), + {Root++ExtMarker++ExtAlts,Tokens}; + Tokens -> + {Root,Tokens} + end. + +parse_ExtensionAndException([{'...',L}|Tokens0]) -> + {[#'EXTENSIONMARK'{pos=L}], + case Tokens0 of + [{'!',_}|Tokens1] -> + {_,Tokens} = parse_ExceptionIdentification(Tokens1), + Tokens; + _ -> + Tokens0 + end}. + +parse_AlternativeTypeList([#identifier{}|_]=Tokens0) -> + {AltType,Tokens} = parse_NamedType(Tokens0), + parse_AlternativeTypeList_1(Tokens, [AltType]); +parse_AlternativeTypeList(Tokens) -> + parse_error(Tokens). + +parse_AlternativeTypeList_1([{',',_}|[#identifier{}|_]=Tokens0], Acc) -> + {AltType,Tokens} = parse_NamedType(Tokens0), + parse_AlternativeTypeList_1(Tokens, [AltType|Acc]); +parse_AlternativeTypeList_1(Tokens, Acc) -> + {lists:reverse(Acc),Tokens}. -to_set(V) when is_list(V) -> - ordsets:from_list(V); -to_set(V) -> - ordsets:from_list([V]). - -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_ExtensionAdditionAlternatives([{',',_}|_]=Tokens0) -> + parse_ExtensionAdditionAlternativesList(Tokens0, []); +parse_ExtensionAdditionAlternatives(Tokens) -> + {[],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}; +parse_ExtensionAdditionAlternativesList([{',',_}|Tokens1]=Tokens0, Acc) -> + try parse_ExtensionAdditionAlternative(Tokens1) of + {ExtAddAlt,Tokens2} -> + parse_ExtensionAdditionAlternativesList(Tokens2, [ExtAddAlt|Acc]) + catch + throw:{asn1_error,_} -> + {lists:append(lists:reverse(Acc)),Tokens0} + end; +parse_ExtensionAdditionAlternativesList(Tokens, Acc) -> + {lists:append(lists:reverse(Acc)),Tokens}. + +parse_ExtensionAdditionAlternative([#identifier{}|_]=Tokens0) -> + {NamedType,Tokens} = parse_NamedType(Tokens0), + {[NamedType],Tokens}; +parse_ExtensionAdditionAlternative([{'[',_},{'[',_}|Tokens0]) -> + Tokens2 = case Tokens0 of + [{number,_,_},{':',_}|Tokens1] -> Tokens1; + _ -> Tokens0 + end, + {GroupList,Tokens3} = parse_AlternativeTypeList(Tokens2), + case Tokens3 of + [{']',_},{']',_}|Tokens] -> + {GroupList,Tokens}; _ -> - 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_error(Tokens3) + end; +parse_ExtensionAdditionAlternative(Tokens) -> + parse_error(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. +%%% +%%% End of parsing of alternative type lists. +%%% - - -%% 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]) -> +parse_NamedType([#identifier{pos=L1,val=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_error(Tokens). +%%% +%%% Parse component type lists for SEQUENCE and SET. +%%% parse_ComponentTypeLists(Tokens) -> - 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) -> +parse_ComponentTypeLists([#identifier{}|_Rest0]=Tokens, 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([{'COMPONENTS',_},{'OF',_}|_]=Tokens,Clist) -> + {CompList,Rest1} = parse_ComponentTypeList(Tokens, []), + parse_ComponentTypeLists(Rest1, Clist++CompList); 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_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}. + {Clist0,Tokens}; +parse_ComponentTypeLists(Tokens, _) -> + parse_error(Tokens). parse_ComponentTypeLists2(Tokens,Clist) -> {ExtAdd,Rest} = parse_ExtensionAdditions(Tokens,Clist), @@ -2590,12 +1842,12 @@ 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([{',',_}|[#identifier{}|_]=Tokens0], Acc) when Acc =/= [] -> + {ComponentType,Tokens} = parse_ComponentType(Tokens0), + parse_ComponentTypeList(Tokens, [ComponentType|Acc]); +parse_ComponentTypeList([{',',_}|[{'COMPONENTS',_},{'OF',_}|_]=Tokens0], Acc) when Acc =/= [] -> + {ComponentType,Tokens} = parse_ComponentType(Tokens0), + parse_ComponentTypeList(Tokens, [ComponentType|Acc]); parse_ComponentTypeList(Tokens = [{'}',_}|_],Acc) -> {lists:reverse(Acc),Tokens}; parse_ComponentTypeList(Tokens = [{']',_},{']',_}|_],Acc) -> @@ -2606,10 +1858,7 @@ 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_error(Tokens). parse_ExtensionAdditions(Tokens=[{',',_}|_],Clist) -> {ExtAddList,Rest2} = parse_ExtensionAdditionList(Tokens,[]), @@ -2618,46 +1867,36 @@ 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([{',',_}|[#identifier{}|_]=Tokens0], Acc) -> + {ComponentType,Tokens} = parse_ComponentType(Tokens0), + parse_ExtensionAdditionList(Tokens, [ComponentType|Acc]); +parse_ExtensionAdditionList([{',',_}|[{'COMPONENTS',_},{'OF',_}|_]=Tokens0], Acc) -> + {ComponentType,Tokens} = parse_ComponentType(Tokens0), + parse_ExtensionAdditionList(Tokens, [ComponentType|Acc]); +parse_ExtensionAdditionList([{',',_},{'[',_},{'[',_}|Tokens], Acc) -> + {ExtAddGroup,Rest2} = parse_ExtensionAdditionGroup(Tokens), parse_ExtensionAdditionList(Rest2,[ExtAddGroup|Acc]); -parse_ExtensionAdditionList(Tokens = [{'}',_}|_],Acc) -> +parse_ExtensionAdditionList([{'}',_}|_]=Tokens, Acc) -> {lists:reverse(Acc),Tokens}; -parse_ExtensionAdditionList(Tokens = [{',',_},{'...',_}|_],Acc) -> +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_ExtensionAdditionList(Tokens, _) -> + parse_error(Tokens). -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_ExtensionAdditionGroup([{number,_,Num},{':',_}|Tokens]) -> + parse_ExtensionAdditionGroup2(Tokens, Num); +parse_ExtensionAdditionGroup(Tokens) -> + parse_ExtensionAdditionGroup2(Tokens, undefined). -parse_ExtensionAdditionGroup2(Tokens,Num) -> +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,[']]']]}}) + parse_error(Rest) end. @@ -2676,83 +1915,81 @@ parse_ComponentType(Tokens) -> Result end. - +%%% +%%% Parse ENUMERATED. +%%% -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}; +parse_Enumerations(Tokens0) -> + {Root,Tokens1} = parse_Enumeration(Tokens0), + case Tokens1 of + [{',',_},{'...',_},{',',_}|Tokens2] -> + {Ext,Tokens} = parse_Enumeration(Tokens2), + {Root++['EXTENSIONMARK'|Ext],Tokens}; + [{',',_},{'...',_}|Tokens] -> + {Root++['EXTENSIONMARK'],Tokens}; _ -> - {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} + case get(extensiondefault) of + 'IMPLIED' -> + {Root++['EXTENSIONMARK'],Tokens1}; + _ -> + {Root,Tokens1} + end + end. + +parse_Enumeration(Tokens0) -> + {Item,Tokens} = parse_EnumerationItem(Tokens0), + parse_Enumeration_1(Tokens, [Item]). + +parse_Enumeration_1([{',',_}|Tokens1]=Tokens0, Acc) -> + try parse_EnumerationItem(Tokens1) of + {Item,Tokens} -> + parse_Enumeration_1(Tokens, [Item|Acc]) + catch + throw:{asn1_error,_} -> + {lists:reverse(Acc),Tokens0} end; -parse_Enumerations([H|_T],_,_) -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,identifier]}}). +parse_Enumeration_1(Tokens, Acc) -> + {lists:reverse(Acc),Tokens}. + +parse_EnumerationItem([#identifier{},{'(',_}|_]=Tokens) -> + parse_NamedNumber(Tokens); +parse_EnumerationItem([#identifier{val=Id}|Tokens]) -> + {Id,Tokens}; +parse_EnumerationItem(Tokens) -> + parse_error(Tokens). + +%%% +%%% End of parsing of ENUMERATED. +%%% parse_NamedNumberList(Tokens) -> - parse_NamedNumberList(Tokens,[]). + parse_NamedNumberList(Tokens, []). -parse_NamedNumberList(Tokens,Acc) -> +parse_NamedNumberList(Tokens, Acc) -> {NamedNum,Rest} = parse_NamedNumber(Tokens), case Rest of [{',',_}|Rest2] -> parse_NamedNumberList(Rest2,[NamedNum|Acc]); _ -> - {lists:reverse([NamedNum|Acc]),Rest} + {lists:reverse(Acc, [NamedNum]),Rest} end. -parse_NamedNumber([{identifier,_,Name},{'(',_}|Rest]) -> +parse_NamedNumber([#identifier{val=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); + case parse_or(Rest, Flist) of {NamedNum,[{')',_}|Rest2]} -> {{'NamedNumber',Name,NamedNum},Rest2}; _ -> - throw({asn1_error,{get_line(hd(Rest)),get(asn1_module), - [got,get_token(hd(Rest)),expected,'NamedNumberList']}}) + parse_error(Rest) end; parse_NamedNumber(Tokens) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected,identifier]}}). + parse_error(Tokens). +parse_SignedNumber([{number,_,Value}|Rest]) -> + {Value,Rest}; +parse_SignedNumber(Tokens) -> + parse_error(Tokens). parse_Tag([{'[',_}|Rest]) -> {Class,Rest2} = parse_Class(Rest), @@ -2767,12 +2004,8 @@ parse_Tag([{'[',_}|Rest]) -> [{']',_}|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_error(Rest3) + end. parse_Class([{'UNIVERSAL',_}|Rest]) -> {'UNIVERSAL',Rest}; @@ -2791,15 +2024,7 @@ 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_or(Tokens, Flist). parse_BuiltinValue([{bstring,_,Bstr}|Rest]) -> {{bstring,Bstr},Rest}; @@ -2812,18 +2037,11 @@ parse_BuiltinValue(Tokens = [{'{',_}|_Rest]) -> 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]) -> + parse_or(Tokens, Flist); +parse_BuiltinValue([#identifier{val=IdName},{':',_}|Rest]) -> {Value,Rest2} = parse_Value(Rest), {{'CHOICE',{IdName,Value}},Rest2}; -parse_BuiltinValue(Tokens=[{'NULL',_},{':',_}|_Rest]) -> +parse_BuiltinValue([{'NULL',_},{':',_}|_]=Tokens) -> parse_ObjectClassFieldValue(Tokens); parse_BuiltinValue([{'NULL',_}|Rest]) -> {'NULL',Rest}; @@ -2839,31 +2057,29 @@ 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]) -> +parse_DefinedValue(Tokens) -> + Flist = [fun parse_ParameterizedValue/1, + fun parse_DefinedValue2/1], + parse_or(Tokens, Flist). + +parse_DefinedValue2([{typereference,L1,Tname}, + {'.',_}, + #identifier{val=Idname}|Rest]) -> {#'Externalvaluereference'{pos=L1,module=Tname,value=Idname},Rest}; %% valuereference -parse_DefinedValue([Id = {identifier,_,_}|Rest]) -> +parse_DefinedValue2([#identifier{}=Id|Rest]) -> {identifier2Extvalueref(Id),Rest}; -%% ParameterizedValue -parse_DefinedValue(Tokens) -> - parse_ParameterizedValue(Tokens). +parse_DefinedValue2(Tokens) -> + parse_error(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(Tokens, []). -parse_SequenceValue([{identifier,Pos,IdName}|Rest],Acc) -> +parse_SequenceValue([#identifier{pos=Pos,val=IdName}|Rest],Acc) -> {Value,Rest2} = parse_Value(Rest), SeqTag = #seqtag{pos=Pos,module=get(asn1_module),val=IdName}, case Rest2 of @@ -2872,18 +2088,13 @@ parse_SequenceValue([{identifier,Pos,IdName}|Rest],Acc) -> [{'}',_}|Rest3] -> {lists:reverse(Acc, [{SeqTag,Value}]),Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,'}']}}) + parse_error(Rest2) end; parse_SequenceValue(Tokens,_Acc) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected,identifier]}}). + parse_error(Tokens). 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, []). parse_SequenceOfValue(Tokens,Acc) -> {Value,Rest2} = parse_Value(Tokens), @@ -2891,10 +2102,9 @@ parse_SequenceOfValue(Tokens,Acc) -> [{',',_}|Rest3] -> parse_SequenceOfValue(Rest3,[Value|Acc]); [{'}',_}|Rest3] -> - {lists:reverse([Value|Acc]),Rest3}; + {lists:reverse(Acc, [Value]),Rest3}; _ -> - throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module), - [got,get_token(hd(Rest2)),expected,'}']}}) + parse_error(Rest2) end. parse_ValueSetTypeAssignment([{typereference,L1,Name}|Rest]) -> @@ -2904,49 +2114,31 @@ parse_ValueSetTypeAssignment([{typereference,L1,Name}|Rest]) -> {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_error(Rest2) + end. 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,'}']}}) + _ -> + parse_error(Rest2) end; parse_ValueSet(Tokens) -> - throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module), - [got,get_token(hd(Tokens)),expected,'{']}}). + parse_error(Tokens). -parse_ValueAssignment([{identifier,L1,IdName}|Rest]) -> +parse_ValueAssignment([#identifier{pos=L1,val=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; + {#valuedef{pos=L1,name=IdName,type=Type,value=Value, + module=get(asn1_module)},Rest4}; _ -> - 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]}}). + parse_error(Rest2) + end. %% SizeConstraint parse_SubtypeElements([{'SIZE',_}|Tokens]) -> @@ -2966,8 +2158,7 @@ parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_},{'...',_},{',',_}|Tok [{'}',_}|Rest2] -> {{'WITH COMPONENTS',{'PartialSpecification',Constraint}},Rest2}; _ -> - throw({asn1_error,{get_line(hd(Rest)),get(asn1_module), - [got,get_token(hd(Rest)),expected,'}']}}) + parse_error(Rest) end; parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_}|Tokens]) -> {Constraint,Rest} = parse_TypeConstraints(Tokens), @@ -2975,28 +2166,18 @@ parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_}|Tokens]) -> [{'}',_}|Rest2] -> {{'WITH COMPONENTS',{'FullSpecification',Constraint}},Rest2}; _ -> - throw({asn1_error,{get_line(hd(Rest)),get(asn1_module), - [got,get_token(hd(Rest)),expected,'}']}}) + parse_error(Rest) 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_MIN/1, 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) -> + case parse_or(Tokens, Flist) of + {#type{},_}=Result -> Result; {Lower,[{'..',_}|Rest]} -> {Upper,Rest2} = parse_UpperEndpoint(Rest), @@ -3014,10 +2195,7 @@ 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_error(Tokens). parse_UpperEndpoint([{'<',_}|Rest]) -> parse_UpperEndpoint(lt,Rest); @@ -3025,33 +2203,38 @@ 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 -> + Flist = [fun parse_MAX/1, + fun parse_Value/1], + case parse_or(Tokens, Flist) of + {Value,Rest2} when Lt =:= lt -> {{lt,Value},Rest2}; {Value,Rest2} -> {Value,Rest2} end. +parse_MIN([{'MIN',_}|T]) -> + {'MIN',T}; +parse_MIN(Tokens) -> + parse_error(Tokens). + +parse_MAX([{'MAX',_}|T]) -> + {'MAX',T}; +parse_MAX(Tokens) -> + parse_error(Tokens). + parse_TypeConstraints(Tokens) -> - parse_TypeConstraints(Tokens,[]). + parse_TypeConstraints(Tokens, []). -parse_TypeConstraints([{identifier,_,_}|Rest],Acc) -> +parse_TypeConstraints([#identifier{}|Rest], Acc) -> {ComponentConstraint,Rest2} = parse_ComponentConstraint(Rest), case Rest2 of [{',',_}|Rest3] -> - parse_TypeConstraints(Rest3,[ComponentConstraint|Acc]); + parse_TypeConstraints(Rest3, [ComponentConstraint|Acc]); _ -> - {lists:reverse([ComponentConstraint|Acc]),Rest2} + {lists:reverse(Acc, [ComponentConstraint]),Rest2} end; -parse_TypeConstraints([H|_T],_) -> - throw({asn1_error,{get_line(H),get(asn1_module), - [got,get_token(H),expected,identifier]}}). +parse_TypeConstraints(Tokens, _) -> + parse_error(Tokens). parse_ComponentConstraint(Tokens = [{'(',_}|_Rest]) -> {ValueConstraint,Rest2} = parse_Constraint(Tokens), @@ -3071,145 +2254,36 @@ parse_PresenceConstraint(Tokens) -> {asn1_empty,Tokens}. -% merge_constraints({Rlist,ExtList}) -> % extensionmarker in constraint -% {merge_constraints(Rlist,[],[]), -% merge_constraints(ExtList,[],[])}; - -%% An arg with a constraint with extension marker will look like -%% [#constraint{c={Root,Ext}}|Rest] - merge_constraints(Clist) -> merge_constraints(Clist, [], []). -merge_constraints([Ch|Ct],Cacc, Eacc) -> - NewEacc = case Ch#constraint.e of - undefined -> Eacc; - E -> [E|Eacc] - end, - merge_constraints(Ct,[fixup_constraint(Ch#constraint.c)|Cacc],NewEacc); - -merge_constraints([],Cacc,[]) -> -%% lists:flatten(Cacc); +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:flatten(Cacc) ++ [{'Errors',Eacc}]. - lists:reverse(Cacc) ++ [{'Errors',Eacc}]. - - -fixup_constraint(C) -> - case C of - {'SingleValue',SubType} when element(1,SubType) == 'ContainedSubtype' -> - SubType; - {'SingleValue',V} when is_list(V) -> - C; - %% [C,{'ValueRange',{lists:min(V),lists:max(V)}}]; - %% bug, turns wrong when an element in V is a reference to a defined value - {'PermittedAlphabet',{'SingleValue',V}} when is_list(V) -> - %%sort and remove duplicates - V2 = {'SingleValue', - ordsets:from_list(lists:flatten(V))}, - {'PermittedAlphabet',V2}; - {'PermittedAlphabet',{'SingleValue',V}} -> - V2 = {'SingleValue',[V]}, - {'PermittedAlphabet',V2}; - {'SizeConstraint',Sc} -> - {'SizeConstraint',fixup_size_constraint(Sc)}; - - List when is_list(List) -> %% In This case maybe a union or intersection - [fixup_constraint(Xc)||Xc <- List]; - Other -> - Other - end. +merge_constraints([], Cacc, Eacc) -> + lists:reverse(Cacc) ++ [{element_set,{'Errors',Eacc},none}]. -fixup_size_constraint({'ValueRange',{Lb,Ub}}) -> - {Lb,Ub}; -fixup_size_constraint({{'ValueRange',R},[]}) -> - {R,[]}; -fixup_size_constraint({[],{'ValueRange',R}}) -> - {[],R}; -fixup_size_constraint({{'ValueRange',R1},{'ValueRange',R2}}) -> - {R1,R2}; -fixup_size_constraint({'SingleValue',[Sv]}) -> - fixup_size_constraint({'SingleValue',Sv}); -fixup_size_constraint({'SingleValue',L}) when is_list(L) -> - ordsets:from_list(L); -fixup_size_constraint({'SingleValue',L}) -> - {L,L}; -fixup_size_constraint({'SizeConstraint',C}) -> - %% this is a second SIZE - fixup_size_constraint(C); -fixup_size_constraint({C1,C2}) -> - %% this is with extension marks - {turn2vr(fixup_size_constraint(C1)), extension_size(fixup_size_constraint(C2))}; -fixup_size_constraint(CList) when is_list(CList) -> - [fixup_constraint(Xc)||Xc <- CList]. - -turn2vr(L) when is_list(L) -> - L2 =[X||X<-ordsets:from_list(L),is_integer(X)], - case L2 of - [H|_] -> - {H,hd(lists:reverse(L2))}; - _ -> - L - end; -turn2vr(VR) -> - VR. -extension_size({I,I}) -> - [I]; -extension_size({I1,I2}) -> - [I1,I2]; -extension_size(C) -> - C. - -get_line({_,Pos,Token}) when is_integer(Pos),is_atom(Token) -> +get_line({Token,Pos,_}) 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; + Pos. + +get_token({valuefieldreference,_,FieldName}) -> + list_to_atom([$&|atom_to_list(FieldName)]); +get_token({typefieldreference,_,FieldName}) -> + list_to_atom([$&|atom_to_list(FieldName)]); +get_token({Token,Pos,Value}) when is_integer(Pos), is_atom(Token) -> + Value; get_token({'$end',Pos}) when is_integer(Pos) -> - undefined; + 'END-OF-FILE'; 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( - + Token. tref2Exttref(#typereference{pos=Pos,val=Name}) -> #'Externaltypereference'{pos=Pos, @@ -3226,19 +2300,5 @@ identifier2Extvalueref(#identifier{pos=Pos,val=Name}) -> 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. - -is_pre_defined_class('TYPE-IDENTIFIER') -> - true; -is_pre_defined_class('ABSTRACT-SYNTAX') -> - true; -is_pre_defined_class(_) -> - false. - +parse_error(Tokens) -> + throw({asn1_error,{parse_error,Tokens}}). |