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-rw-r--r--lib/kernel/src/standard_error.erl180
1 files changed, 102 insertions, 78 deletions
diff --git a/lib/kernel/src/standard_error.erl b/lib/kernel/src/standard_error.erl
index e41dcd01fc..5d649e5f94 100644
--- a/lib/kernel/src/standard_error.erl
+++ b/lib/kernel/src/standard_error.erl
@@ -1,18 +1,19 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2009-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2009-2016. 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%
%%
@@ -63,13 +64,13 @@ server(PortName,PortSettings) ->
run(Port).
run(P) ->
- put(unicode,false),
+ put(encoding, latin1),
server_loop(P).
server_loop(Port) ->
receive
{io_request,From,ReplyAs,Request} when is_pid(From) ->
- do_io_request(Request, From, ReplyAs, Port),
+ _ = do_io_request(Request, From, ReplyAs, Port),
server_loop(Port);
{'EXIT',Port,badsig} -> % Ignore badsig errors
server_loop(Port);
@@ -95,25 +96,47 @@ do_io_request(Req, From, ReplyAs, Port) ->
io_reply(From, ReplyAs, Reply).
%% New in R13B
-% Wide characters (Unicode)
-io_request({put_chars,Encoding,Chars}, Port) -> % Binary new in R9C
- put_chars(wrap_characters_to_binary(Chars,Encoding,
- case get(unicode) of
- true -> unicode;
- _ -> latin1
- end), Port);
-io_request({put_chars,Encoding,Mod,Func,Args}, Port) ->
- Result = case catch apply(Mod,Func,Args) of
- Data when is_list(Data); is_binary(Data) ->
- wrap_characters_to_binary(Data,Encoding,
- case get(unicode) of
- true -> unicode;
- _ -> latin1
- end);
- Undef ->
- Undef
- end,
- put_chars(Result, Port);
+%% Encoding option (unicode/latin1)
+io_request({put_chars,unicode,Chars}, Port) ->
+ case wrap_characters_to_binary(Chars, unicode, get(encoding)) of
+ error ->
+ {error,{error,put_chars}};
+ Bin ->
+ put_chars(Bin, Port)
+ end;
+io_request({put_chars,unicode,Mod,Func,Args}, Port) ->
+ case catch apply(Mod, Func, Args) of
+ Data when is_list(Data); is_binary(Data) ->
+ case wrap_characters_to_binary(Data, unicode, get(encoding)) of
+ Bin when is_binary(Bin) ->
+ put_chars(Bin, Port);
+ error ->
+ {error,{error,put_chars}}
+ end;
+ _ ->
+ {error,{error,put_chars}}
+ end;
+io_request({put_chars,latin1,Chars}, Port) ->
+ case catch unicode:characters_to_binary(Chars, latin1, get(encoding)) of
+ Data when is_binary(Data) ->
+ put_chars(Data, Port);
+ _ ->
+ {error,{error,put_chars}}
+ end;
+io_request({put_chars,latin1,Mod,Func,Args}, Port) ->
+ case catch apply(Mod, Func, Args) of
+ Data when is_list(Data); is_binary(Data) ->
+ case
+ catch unicode:characters_to_binary(Data, latin1, get(encoding))
+ of
+ Bin when is_binary(Bin) ->
+ put_chars(Bin, Port);
+ _ ->
+ {error,{error,put_chars}}
+ end;
+ _ ->
+ {error,{error,put_chars}}
+ end;
%% BC if called from pre-R13 node
io_request({put_chars,Chars}, Port) ->
io_request({put_chars,latin1,Chars}, Port);
@@ -134,10 +157,10 @@ io_request({get_geometry,rows},Port) ->
_ ->
{error,{error,enotsup}}
end;
-io_request({getopts,[]}, Port) ->
- getopts(Port);
-io_request({setopts,Opts}, Port) when is_list(Opts) ->
- setopts(Opts, Port);
+io_request(getopts, _Port) ->
+ getopts();
+io_request({setopts,Opts}, _Port) when is_list(Opts) ->
+ setopts(Opts);
io_request({requests,Reqs}, Port) ->
io_requests(Reqs, {ok,ok}, Port);
io_request(R, _Port) -> %Unknown request
@@ -175,48 +198,49 @@ io_reply(From, ReplyAs, Reply) ->
%% put_chars
put_chars(Chars, Port) when is_binary(Chars) ->
- put_port(Chars, Port),
- {ok,ok};
-put_chars(Chars, Port) ->
- case catch list_to_binary(Chars) of
- Binary when is_binary(Binary) ->
- put_chars(Binary, Port);
- _ ->
- {error,{error,put_chars}}
- end.
+ _ = put_port(Chars, Port),
+ {ok,ok}.
%% setopts
-setopts(Opts0,Port) ->
- Opts = proplists:unfold(
- proplists:substitute_negations(
- [{latin1,unicode}],
- Opts0)),
+setopts(Opts0) ->
+ Opts = expand_encoding(Opts0),
case check_valid_opts(Opts) of
- true ->
- do_setopts(Opts,Port);
- false ->
- {error,{error,enotsup}}
+ true ->
+ do_setopts(Opts);
+ false ->
+ {error,{error,enotsup}}
end.
+
check_valid_opts([]) ->
true;
-check_valid_opts([{unicode,Valid}|T]) when Valid =:= true; Valid =:= utf8; Valid =:= false ->
+check_valid_opts([{encoding,Valid}|T]) when Valid =:= unicode;
+ Valid =:= utf8; Valid =:= latin1 ->
check_valid_opts(T);
check_valid_opts(_) ->
false.
-do_setopts(Opts, _Port) ->
- case proplists:get_value(unicode,Opts) of
- Valid when Valid =:= true; Valid =:= utf8 ->
- put(unicode,true);
- false ->
- put(unicode,false);
- undefined ->
- ok
+expand_encoding([]) ->
+ [];
+expand_encoding([latin1 | T]) ->
+ [{encoding,latin1} | expand_encoding(T)];
+expand_encoding([unicode | T]) ->
+ [{encoding,unicode} | expand_encoding(T)];
+expand_encoding([H|T]) ->
+ [H|expand_encoding(T)].
+
+do_setopts(Opts) ->
+ case proplists:get_value(encoding, Opts) of
+ Valid when Valid =:= unicode; Valid =:= utf8 ->
+ put(encoding, unicode);
+ latin1 ->
+ put(encoding, latin1);
+ undefined ->
+ ok
end,
{ok,ok}.
-getopts(_Port) ->
- Uni = {unicode, get(unicode) =:= true},
+getopts() ->
+ Uni = {encoding,get(encoding)},
{ok,[Uni]}.
wrap_characters_to_binary(Chars,From,To) ->
@@ -227,17 +251,17 @@ wrap_characters_to_binary(Chars,From,To) ->
_Else ->
16#10ffff
end,
- unicode:characters_to_binary(
- [ case X of
- $\n ->
- if
- TrNl ->
- "\r\n";
- true ->
- $\n
- end;
- High when High > Limit ->
- ["\\x{",erlang:integer_to_list(X, 16),$}];
- Ordinary ->
- Ordinary
- end || X <- unicode:characters_to_list(Chars,From) ],unicode,To).
+ case catch unicode:characters_to_list(Chars, From) of
+ L when is_list(L) ->
+ unicode:characters_to_binary(
+ [ case X of
+ $\n when TrNl ->
+ "\r\n";
+ High when High > Limit ->
+ ["\\x{",erlang:integer_to_list(X, 16),$}];
+ Low ->
+ Low
+ end || X <- L ], unicode, To);
+ _ ->
+ error
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 01:46:00 +0000