icparse.erl

来自「OTP是开放电信平台的简称」· ERL 代码 · 共 1,180 行 · 第 1/5 页

-module(icparse).
-file("/ldisk/daily_build/otp_prebuild_r11b.2007-06-11_19/otp_src_R11B-5/lib/ic/src/icyeccpre.hrl", 0).
%% ``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 via the world wide web at http://www.erlang.org/.
%% 
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%% 
%% The Initial Developer of the Original Code is Ericsson Utvecklings AB.
%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
%% AB. All Rights Reserved.''
%% 
%%     $Id$
%%


-export([parse/1, parse_and_scan/1, format_error/1]).

-import(lists, [reverse/1]).

-ifdef(JAM).
-compile([{parse_transform,jam_yecc_pj},pj]).
-endif.


-include("icforms.hrl").



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% The parser generator will insert appropriate declarations before this line.%

parse(Tokens) ->
    case catch yeccpars1(Tokens, false, 0, [], []) of
	error ->
	    Errorline =
		if Tokens == [] -> 0; true -> element(2, hd(Tokens)) end,
	    {error,
	     {Errorline, ?MODULE, "syntax error at or after this line."}};
	Other ->
	    Other
    end.

parse_and_scan({Mod, Fun, Args}) ->
    case apply(Mod, Fun, Args) of
	{eof, _} ->
	    {ok, eof};
	{error, Descriptor, _} ->
	    {error, Descriptor};
	{ok, Tokens, _} ->
	    yeccpars1(Tokens, {Mod, Fun, Args}, 0, [], [])
    end.

format_error(Message) ->
    case io_lib:deep_char_list(Message) of
	true ->
	    Message;
	_ ->
	    io_lib:write(Message)
    end.

% To be used in grammar files to throw an error message to the parser toplevel.
% Doesn't have to be exported!
return_error(Line, Message) ->
    throw({error, {Line, ?MODULE, Message}}).


% Don't change yeccpars1/6 too much, it is called recursively by yeccpars2/8!
yeccpars1([Token | Tokens], Tokenizer, State, States, Vstack) ->
    yeccpars2(State, element(1, Token), States, Vstack, Token, Tokens,
	      Tokenizer);
yeccpars1([], {M, F, A}, State, States, Vstack) ->
    case catch apply(M, F, A) of
        {eof, Endline} ->
            {error, {Endline, ?MODULE, "end_of_file"}};
        {error, Descriptor, Endline} ->
            {error, Descriptor};
        {'EXIT', Reason} ->
            {error, {0, ?MODULE, Reason}};
        {ok, Tokens, Endline} ->
	    case catch yeccpars1(Tokens, {M, F, A}, State, States, Vstack) of
		error ->
		    Errorline = element(2, hd(Tokens)),
		    {error, {Errorline, ?MODULE,
			     "syntax error at or after this line."}};
		Other ->
		    Other
	    end
    end;
yeccpars1([], false, State, States, Vstack) ->
    yeccpars2(State, '$end', States, Vstack, {'$end', 999999}, [], false).

% For internal use only.
yeccerror(Token) ->
    {error,
     {element(2, Token), ?MODULE,
      ["syntax error before: ", yecctoken2string(Token)]}}.

yecctoken2string({atom, _, A}) -> io_lib:write(A);
yecctoken2string({integer,_,N}) -> io_lib:write(N);
yecctoken2string({float,_,F}) -> io_lib:write(F);
yecctoken2string({char,_,C}) -> io_lib:write_char(C);
yecctoken2string({var,_,V}) -> io_lib:format('~s', [V]);
yecctoken2string({string,_,S}) -> io_lib:write_string(S);
yecctoken2string({reserved_symbol, _, A}) -> io_lib:format('~w', [A]);
yecctoken2string({'dot', _}) -> io_lib:format('~w', ['.']);
yecctoken2string({'$end', _}) ->
    [];
yecctoken2string({Other, _}) when atom(Other) ->
    io_lib:format('~w', [Other]);
yecctoken2string({_, _, Other}) when list(Other), number(hd(Other)) ->
    Other;
yecctoken2string({_, _, Other}) ->
    io_lib:format('~p', [Other]);
yecctoken2string(Other) ->
    io_lib:write(Other).

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


-file("icparse.yrl", 858).
%%-----------------------------------------------------------




-file("./icparse.erl", 132).

yeccpars2(0, '#', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 17, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, const, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 18, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, enum, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 19, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, exception, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 20, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, interface, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 21, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, module, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 22, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, struct, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 23, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, typedef, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 24, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, union, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 25, [0 | __Ss], [__T | __Stack]);
yeccpars2(0, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(1, '#', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 17, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, const, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 18, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, enum, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 19, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, exception, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 20, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, interface, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 21, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, module, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 22, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, struct, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 23, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, typedef, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 24, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, union, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 25, [1 | __Ss], [__T | __Stack]);
yeccpars2(1, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 __NewStack = yeccpars2_1_(__Stack),
 yeccpars2(yeccgoto('<specification>', hd(__Ss)), __Cat, __Ss, __NewStack, __T, __Ts, __Tzr);
yeccpars2(2, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<definition>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(3, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<definition>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(4, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<type_dcl>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(5, ';', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 342, [5 | __Ss], [__T | __Stack]);
yeccpars2(5, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(6, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<type_dcl>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(7, '$end', _, __Stack, _, _, _) ->
 {ok, hd(__Stack)};
yeccpars2(7, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(8, ';', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 341, [8 | __Ss], [__T | __Stack]);
yeccpars2(8, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(9, '{', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 270, [9 | __Ss], [__T | __Stack]);
yeccpars2(9, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(10, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<interface>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(11, ';', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 269, [11 | __Ss], [__T | __Stack]);
yeccpars2(11, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(12, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<interface>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(13, ';', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 268, [13 | __Ss], [__T | __Stack]);
yeccpars2(13, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(14, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars2(yeccgoto('<type_dcl>', hd(__Ss)), __Cat, __Ss, __Stack, __T, __Ts, __Tzr);
yeccpars2(15, __Cat, __Ss, __Stack, __T, __Ts, __Tzr) ->
 __NewStack = yeccpars2_15_(__Stack),
 yeccpars2(yeccgoto('OorM_<definition>', hd(__Ss)), __Cat, __Ss, __NewStack, __T, __Ts, __Tzr);
yeccpars2(16, ';', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 267, [16 | __Ss], [__T | __Stack]);
yeccpars2(16, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(17, '#', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 260, [17 | __Ss], [__T | __Stack]);
yeccpars2(17, '<integer_literal>', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 261, [17 | __Ss], [__T | __Stack]);
yeccpars2(17, _, _, _, __T, _, _) ->
 yeccerror(__T);
yeccpars2(18, '::', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 41, [18 | __Ss], [__T | __Stack]);
yeccpars2(18, '<identifier>', __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 42, [18 | __Ss], [__T | __Stack]);
yeccpars2(18, boolean, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 43, [18 | __Ss], [__T | __Stack]);
yeccpars2(18, char, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 44, [18 | __Ss], [__T | __Stack]);
yeccpars2(18, double, __Ss, __Stack, __T, __Ts, __Tzr) ->
 yeccpars1(__Ts, __Tzr, 103, [18 | __Ss], [__T | __Stack]);
yeccpars2(18, fixed, __Ss, __Stack, __T, __Ts, __Tzr) ->