The R13B03 release.OTP_R13B03

1 files changed, 124 insertions, 0 deletions

diff --git a/lib/ic/src/icyeccpre.hrl b/lib/ic/src/icyeccpre.hrl
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+++ b/lib/ic/src/icyeccpre.hrl
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+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%
+%%
+
+
+-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', _}) -> "'.'";
+yecctoken2string({'$end', _}) ->
+    [];
+yecctoken2string({Other, _}) when is_atom(Other) ->
+    io_lib:format("~w", [Other]);
+yecctoken2string({_, _, Other}) when is_list(Other) andalso is_number(hd(Other)) ->
+    Other;
+yecctoken2string({_, _, Other}) ->
+    io_lib:format("~p", [Other]);
+yecctoken2string(Other) ->
+    io_lib:write(Other).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+