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authorHans Bolinder <[email protected]>2012-10-04 15:58:26 +0200
committerHans Bolinder <[email protected]>2013-01-02 10:15:17 +0100
commit300c5466a7c9cfe3ed22bba2a88ba21058406402 (patch)
treeb8c30800b17d5ae98255de2fd2818d8b5d4d6eba /lib
parent7a884a31cfcaaf23f7920ba1a006aa2855529030 (diff)
downloadotp-300c5466a7c9cfe3ed22bba2a88ba21058406402.tar.gz
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[stdlib, kernel] Introduce Unicode support for Erlang source files
Expect modifications, additions and corrections. There is a kludge in file_io_server and erl_scan:continuation_location() that's not so pleasing.
Diffstat (limited to 'lib')
-rw-r--r--lib/compiler/src/compile.erl32
-rw-r--r--lib/kernel/doc/src/file.xml20
-rw-r--r--lib/kernel/src/file.erl2
-rw-r--r--lib/kernel/src/file_io_server.erl18
-rw-r--r--lib/parsetools/include/yeccpre.hrl6
-rw-r--r--lib/parsetools/src/leex.erl99
-rw-r--r--lib/parsetools/src/yecc.erl120
-rw-r--r--lib/parsetools/src/yeccscan.erl6
-rw-r--r--lib/parsetools/test/leex_SUITE.erl115
-rw-r--r--lib/parsetools/test/yecc_SUITE.erl154
-rw-r--r--lib/stdlib/doc/src/Makefile11
-rw-r--r--lib/stdlib/doc/src/epp.xml59
-rw-r--r--lib/stdlib/doc/src/erl_pp.xml8
-rw-r--r--lib/stdlib/doc/src/io.xml63
-rw-r--r--lib/stdlib/doc/src/io_lib.xml66
-rw-r--r--lib/stdlib/doc/src/unicode_usage.xml113
-rw-r--r--lib/stdlib/doc/src/ushell1.gifbin13870 -> 0 bytes
-rw-r--r--lib/stdlib/doc/src/ushell1.ps1196
-rw-r--r--lib/stdlib/doc/src/ushell2.gifbin4384 -> 0 bytes
-rw-r--r--lib/stdlib/doc/src/ushell2.ps404
-rw-r--r--lib/stdlib/doc/src/ushell3.gifbin8239 -> 0 bytes
-rw-r--r--lib/stdlib/doc/src/ushell3.ps662
-rw-r--r--lib/stdlib/src/Makefile1
-rw-r--r--lib/stdlib/src/epp.erl211
-rw-r--r--lib/stdlib/src/erl_lint.erl4
-rw-r--r--lib/stdlib/src/erl_parse.yrl128
-rw-r--r--lib/stdlib/src/erl_pp.erl759
-rw-r--r--lib/stdlib/src/erl_scan.erl225
-rw-r--r--lib/stdlib/src/escript.erl29
-rw-r--r--lib/stdlib/src/io.erl77
-rw-r--r--lib/stdlib/src/io_lib.erl67
-rw-r--r--lib/stdlib/src/io_lib_format.erl37
-rw-r--r--lib/stdlib/src/io_lib_pretty.erl226
-rw-r--r--lib/stdlib/src/lib.erl173
-rw-r--r--lib/stdlib/src/shell.erl109
-rw-r--r--lib/stdlib/test/epp_SUITE.erl82
-rw-r--r--lib/stdlib/test/erl_pp_SUITE.erl91
-rw-r--r--lib/stdlib/test/erl_scan_SUITE.erl189
-rw-r--r--lib/stdlib/test/escript_SUITE.erl21
-rwxr-xr-xlib/stdlib/test/escript_SUITE_data/unicode114
-rwxr-xr-xlib/stdlib/test/escript_SUITE_data/unicode214
-rwxr-xr-xlib/stdlib/test/escript_SUITE_data/unicode313
-rw-r--r--lib/stdlib/test/io_SUITE.erl47
-rw-r--r--lib/stdlib/test/io_proto_SUITE.erl2
-rw-r--r--lib/stdlib/test/shell_SUITE.erl209
45 files changed, 2631 insertions, 3251 deletions
diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl
index df1af36eeb..a3120eb917 100644
--- a/lib/compiler/src/compile.erl
+++ b/lib/compiler/src/compile.erl
@@ -248,6 +248,7 @@ format_error({module_name,Mod,Filename}) ->
abstract_code=[], %Abstract code for debugger.
options=[] :: [option()], %Options for compilation
mod_options=[] :: [option()], %Options for module_info
+ encoding=none :: none | epp:source_coding(),
errors=[],
warnings=[]}).
@@ -734,8 +735,9 @@ collect_asm([X | Rest], R) ->
beam_consult_asm(St) ->
case file:consult(St#compile.ifile) of
{ok, Forms0} ->
+ Encoding = epp:read_encoding(St#compile.ifile),
{Module, Forms} = preprocess_asm_forms(Forms0),
- {ok,St#compile{module=Module, code=Forms}};
+ {ok,St#compile{module=Module, code=Forms, encoding=Encoding}};
{error,E} ->
Es = [{St#compile.ifile,[{none,?MODULE,{open,E}}]}],
{error,St#compile{errors=St#compile.errors ++ Es}}
@@ -777,7 +779,8 @@ parse_module(St) ->
R = epp:parse_file(St#compile.ifile, IncludePath, pre_defs(Opts)),
case R of
{ok,Forms} ->
- {ok,St#compile{code=Forms}};
+ Encoding = epp:read_encoding(St#compile.ifile),
+ {ok,St#compile{code=Forms,encoding=Encoding}};
{error,E} ->
Es = [{St#compile.ifile,[{none,?MODULE,{epp,E}}]}],
{error,St#compile{errors=St#compile.errors ++ Es}}
@@ -1424,28 +1427,28 @@ report_warnings(#compile{options=Opts,warnings=Ws0}) ->
end.
format_message(F, P, [{{Line,Column}=Loc,Mod,E}|Es]) ->
- M = {{F,Loc},io_lib:format("~s:~w:~w ~s~s\n",
+ M = {{F,Loc},io_lib:format("~s:~w:~w ~s~ts\n",
[F,Line,Column,P,Mod:format_error(E)])},
[M|format_message(F, P, Es)];
format_message(F, P, [{Line,Mod,E}|Es]) ->
- M = {{F,{Line,0}},io_lib:format("~s:~w: ~s~s\n",
+ M = {{F,{Line,0}},io_lib:format("~s:~w: ~s~ts\n",
[F,Line,P,Mod:format_error(E)])},
[M|format_message(F, P, Es)];
format_message(F, P, [{Mod,E}|Es]) ->
- M = {none,io_lib:format("~s: ~s~s\n", [F,P,Mod:format_error(E)])},
+ M = {none,io_lib:format("~s: ~s~ts\n", [F,P,Mod:format_error(E)])},
[M|format_message(F, P, Es)];
format_message(_, _, []) -> [].
%% list_errors(File, ErrorDescriptors) -> ok
list_errors(F, [{{Line,Column},Mod,E}|Es]) ->
- io:fwrite("~s:~w:~w: ~s\n", [F,Line,Column,Mod:format_error(E)]),
+ io:fwrite("~s:~w:~w: ~ts\n", [F,Line,Column,Mod:format_error(E)]),
list_errors(F, Es);
list_errors(F, [{Line,Mod,E}|Es]) ->
- io:fwrite("~s:~w: ~s\n", [F,Line,Mod:format_error(E)]),
+ io:fwrite("~s:~w: ~ts\n", [F,Line,Mod:format_error(E)]),
list_errors(F, Es);
list_errors(F, [{Mod,E}|Es]) ->
- io:fwrite("~s: ~s\n", [F,Mod:format_error(E)]),
+ io:fwrite("~s: ~ts\n", [F,Mod:format_error(E)]),
list_errors(F, Es);
list_errors(_F, []) -> ok.
@@ -1501,10 +1504,12 @@ src_listing(Ext, St) ->
Ext, St).
do_src_listing(Lf, Fs) ->
- foreach(fun (F) -> io:put_chars(Lf, [erl_pp:form(F),"\n"]) end,
+ Opts = [lists:keyfind(encoding, 1, io:getopts(Lf))],
+ foreach(fun (F) -> io:put_chars(Lf, [erl_pp:form(F, Opts),"\n"]) end,
Fs).
-listing(Ext, St) ->
+listing(Ext, St0) ->
+ St = St0#compile{encoding = none},
listing(fun(Lf, Fs) -> beam_listing:module(Lf, Fs) end, Ext, St).
listing(LFun, Ext, St) ->
@@ -1512,6 +1517,7 @@ listing(LFun, Ext, St) ->
case file:open(Lfile, [write,delayed_write]) of
{ok,Lf} ->
Code = restore_expanded_types(Ext, St#compile.code),
+ output_encoding(Lf, St),
LFun(Lf, Code),
ok = file:close(Lf),
{ok,St};
@@ -1520,6 +1526,12 @@ listing(LFun, Ext, St) ->
{error,St#compile{errors=St#compile.errors ++ Es}}
end.
+output_encoding(F, #compile{encoding = none}) ->
+ ok = io:setopts(F, [{encoding, epp:default_encoding()}]);
+output_encoding(F, #compile{encoding = Encoding}) ->
+ ok = io:setopts(F, [{encoding, Encoding}]),
+ ok = io:fwrite(F, <<"%% ~s\n">>, [epp:encoding_to_string(Encoding)]).
+
restore_expanded_types("P", Fs) ->
epp:restore_typed_record_fields(Fs);
restore_expanded_types("E", {M,I,Fs0}) ->
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index 89190d8668..d7bdcef53c 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -261,6 +261,9 @@
{person, "pelle", 30}.</code>
<pre>1> <input>file:consult("f.txt").</input>
{ok,[{person,"kalle",25},{person,"pelle",30}]}</pre>
+ <p>The encoding of of <c><anno>Filename</anno></c> can be set
+ by a comment as described in <seealso
+ marker="stdlib:epp#encoding">epp(3)</seealso>.</p>
</desc>
</func>
<func>
@@ -399,6 +402,9 @@
of the error.</p>
</item>
</taglist>
+ <p>The encoding of of <c><anno>Filename</anno></c> can be set
+ by a comment as described in <seealso
+ marker="stdlib:epp#encoding">epp(3)</seealso>.</p>
</desc>
</func>
<func>
@@ -865,6 +871,9 @@
the error.</p>
</item>
</taglist>
+ <p>The encoding of of <c><anno>Filename</anno></c> can be set
+ by a comment as described in <seealso
+ marker="stdlib:epp#encoding">epp(3)</seealso>.</p>
</desc>
</func>
<func>
@@ -906,6 +915,9 @@
of the error.</p>
</item>
</taglist>
+ <p>The encoding of of <c><anno>Filename</anno></c> can be set
+ by a comment as described in <seealso
+ marker="stdlib:epp#encoding">epp(3)</seealso>.</p>
</desc>
</func>
<func>
@@ -975,7 +987,10 @@
of the error.</p>
</item>
</taglist>
- </desc>
+ <p>The encoding of of <c><anno>Filename</anno></c> can be set
+ by a comment as described in <seealso
+ marker="stdlib:epp#encoding">epp(3)</seealso>.</p>
+ </desc>
</func>
<func>
<name name="path_script" arity="3"/>
@@ -1506,6 +1521,9 @@
of the error.</p>
</item>
</taglist>
+ <p>The encoding of of <c><anno>Filename</anno></c> can be set
+ by a comment as described in <seealso
+ marker="stdlib:epp#encoding">epp(3)</seealso>.</p>
</desc>
</func>
<func>
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index 4f7c984b11..de3eaad5a1 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -1315,6 +1315,7 @@ sendfile_send(Sock, Data, Old) ->
%%% Helpers
consult_stream(Fd) ->
+ _ = epp:set_encoding(Fd),
consult_stream(Fd, 1, []).
consult_stream(Fd, Line, Acc) ->
@@ -1328,6 +1329,7 @@ consult_stream(Fd, Line, Acc) ->
end.
eval_stream(Fd, Handling, Bs) ->
+ _ = epp:set_encoding(Fd),
eval_stream(Fd, Handling, 1, undefined, [], Bs).
eval_stream(Fd, H, Line, Last, E, Bs) ->
diff --git a/lib/kernel/src/file_io_server.erl b/lib/kernel/src/file_io_server.erl
index 0bff56cf46..acaffe1e41 100644
--- a/lib/kernel/src/file_io_server.erl
+++ b/lib/kernel/src/file_io_server.erl
@@ -40,6 +40,8 @@ format_error({_Line, ?MODULE, Reason}) ->
io_lib:format("~w", [Reason]);
format_error({_Line, Mod, Reason}) ->
Mod:format_error(Reason);
+format_error(invalid_unicode) ->
+ io_lib:format("cannot translate from UTF-8", []);
format_error(ErrorId) ->
erl_posix_msg:message(ErrorId).
@@ -549,7 +551,7 @@ get_chars_notempty(Mod, Func, XtraArg, S, OutEnc,
<<>> ->
get_chars_apply(Mod, Func, XtraArg, S, OutEnc, State, eof);
_ ->
- {stop,invalid_unicode,{error,invalid_unicode},State}
+ {stop,invalid_unicode,invalid_unicode_error(Mod, Func, XtraArg, S),State}
end;
{error,Reason}=Error ->
{stop,Reason,Error,State}
@@ -616,12 +618,22 @@ get_chars_apply(Mod, Func, XtraArg, S0, OutEnc,
end
catch
exit:ExReason ->
- {stop,ExReason,{error,err_func(Mod, Func, XtraArg)},State};
+ {stop,ExReason,invalid_unicode_error(Mod, Func, XtraArg, S0),State};
error:ErrReason ->
{stop,ErrReason,{error,err_func(Mod, Func, XtraArg)},State}
end.
-
+%% A hack that tries to inform the caller about the position where the
+%% error occured.
+invalid_unicode_error(Mod, Func, XtraArg, S) ->
+ try
+ {erl_scan,tokens,_Args} = XtraArg,
+ Location = erl_scan:continuation_location(S),
+ {error,{Location, ?MODULE, invalid_unicode},Location}
+ catch
+ _:_ ->
+ {error,err_func(Mod, Func, XtraArg)}
+ end.
%% Convert error code to make it look as before
err_func(io_lib, get_until, {_,F,_}) ->
diff --git a/lib/parsetools/include/yeccpre.hrl b/lib/parsetools/include/yeccpre.hrl
index 3672394fc5..e4c3ba52be 100644
--- a/lib/parsetools/include/yeccpre.hrl
+++ b/lib/parsetools/include/yeccpre.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -36,7 +36,7 @@ parse_and_scan({M, F, A}) ->
-spec format_error(any()) -> [char() | list()].
format_error(Message) ->
- case io_lib:deep_char_list(Message) of
+ case io_lib:deep_unicode_char_list(Message) of
true ->
Message;
_ ->
@@ -164,7 +164,7 @@ yecctoken_location(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({char,_,C}) -> io_lib:write_unicode_char(C);
yecctoken2string({var,_,V}) -> io_lib:format("~s", [V]);
yecctoken2string({string,_,S}) -> io_lib:write_unicode_string(S);
yecctoken2string({reserved_symbol, _, A}) -> io_lib:write(A);
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index cdf20461d9..bbef4053b4 100644
--- a/lib/parsetools/src/leex.erl
+++ b/lib/parsetools/src/leex.erl
@@ -58,6 +58,7 @@
gfile=[], % Graph file
module, % Module name
opts=[], % Options
+ encoding=none, % Encoding of Xrl file
% posix=false, % POSIX regular expressions
errors=[],
warnings=[]
@@ -146,7 +147,9 @@ format_error({regexp,E})->
end,
["bad regexp `",Es,"'"];
format_error(ignored_characters) ->
- "ignored characters".
+ "ignored characters";
+format_error(cannot_parse) ->
+ io_lib:fwrite("cannot parse; probably encoding mismatch", []).
%%%
%%% Local functions
@@ -298,10 +301,10 @@ pack_warnings([]) ->
report_errors(St) ->
when_opt(fun () ->
foreach(fun({File,{none,Mod,E}}) ->
- io:fwrite("~s: ~s\n",
+ io:fwrite("~s: ~ts\n",
[File,Mod:format_error(E)]);
({File,{Line,Mod,E}}) ->
- io:fwrite("~s:~w: ~s\n",
+ io:fwrite("~s:~w: ~ts\n",
[File,Line,Mod:format_error(E)])
end, sort(St#leex.errors))
end, report_errors, St#leex.opts).
@@ -316,11 +319,11 @@ report_warnings(St) ->
ShouldReport = member(report_warnings, St#leex.opts) orelse ReportWerror,
when_bool(fun () ->
foreach(fun({File,{none,Mod,W}}) ->
- io:fwrite("~s: ~s~s\n",
+ io:fwrite("~s: ~s~ts\n",
[File,Prefix,
Mod:format_error(W)]);
({File,{Line,Mod,W}}) ->
- io:fwrite("~s:~w: ~s~s\n",
+ io:fwrite("~s:~w: ~s~ts\n",
[File,Line,Prefix,
Mod:format_error(W)])
end, sort(St#leex.warnings))
@@ -396,17 +399,18 @@ verbose_print(St, Format, Args) ->
parse_file(St0) ->
case file:open(St0#leex.xfile, [read]) of
{ok,Xfile} ->
+ St1 = St0#leex{encoding = epp:set_encoding(Xfile)},
try
- verbose_print(St0, "Parsing file ~s, ", [St0#leex.xfile]),
+ verbose_print(St1, "Parsing file ~s, ", [St1#leex.xfile]),
%% We KNOW that errors throw so we can ignore them here.
- {ok,Line1,St1} = parse_head(Xfile, St0),
- {ok,Line2,Macs,St2} = parse_defs(Xfile, Line1, St1),
- {ok,Line3,REAs,Actions,St3} =
- parse_rules(Xfile, Line2, Macs, St2),
- {ok,Code,St4} = parse_code(Xfile, Line3, St3),
- verbose_print(St1, "contained ~w rules.~n", [length(REAs)]),
- {ok,REAs,Actions,Code,St4}
- after file:close(Xfile)
+ {ok,Line1,St2} = parse_head(Xfile, St1),
+ {ok,Line2,Macs,St3} = parse_defs(Xfile, Line1, St2),
+ {ok,Line3,REAs,Actions,St4} =
+ parse_rules(Xfile, Line2, Macs, St3),
+ {ok,Code,St5} = parse_code(Xfile, Line3, St4),
+ verbose_print(St5, "contained ~w rules.~n", [length(REAs)]),
+ {ok,REAs,Actions,Code,St5}
+ after ok = file:close(Xfile)
end;
{error,Error} ->
add_error({none,leex,{file_error,Error}}, St0)
@@ -415,7 +419,7 @@ parse_file(St0) ->
%% parse_head(File, State) -> {ok,NextLine,State}.
%% Parse the head of the file. Skip all comments and blank lines.
-parse_head(Ifile, St) -> {ok,nextline(Ifile, 0),St}.
+parse_head(Ifile, St) -> {ok,nextline(Ifile, 0, St),St}.
%% parse_defs(File, Line, State) -> {ok,NextLine,Macros,State}.
%% Parse the macro definition section of a file. This must exist.
@@ -423,7 +427,7 @@ parse_head(Ifile, St) -> {ok,nextline(Ifile, 0),St}.
parse_defs(Ifile, {ok,?DEFS_HEAD ++ Rest,L}, St) ->
St1 = warn_ignored_chars(L, Rest, St),
- parse_defs(Ifile, nextline(Ifile, L), [], St1);
+ parse_defs(Ifile, nextline(Ifile, L, St), [], St1);
parse_defs(_, {ok,_,L}, St) ->
add_error({L,leex,missing_defs}, St);
parse_defs(_, {eof,L}, St) ->
@@ -435,7 +439,7 @@ parse_defs(Ifile, {ok,Chars,L}=Line, Ms, St) ->
case re:run(Chars, MS, [{capture,all_but_first,list}]) of
{match,[Name,Def]} ->
%%io:fwrite("~p = ~p\n", [Name,Def]),
- parse_defs(Ifile, nextline(Ifile, L), [{Name,Def}|Ms], St);
+ parse_defs(Ifile, nextline(Ifile, L, St), [{Name,Def}|Ms], St);
_ -> {ok,Line,Ms,St} % Anything else
end;
parse_defs(_, Line, Ms, St) ->
@@ -446,7 +450,7 @@ parse_defs(_, Line, Ms, St) ->
parse_rules(Ifile, {ok,?RULE_HEAD ++ Rest,L}, Ms, St) ->
St1 = warn_ignored_chars(L, Rest, St),
- parse_rules(Ifile, nextline(Ifile, L), Ms, [], [], 0, St1);
+ parse_rules(Ifile, nextline(Ifile, L, St), Ms, [], [], 0, St1);
parse_rules(_, {ok,_,L}, _, St) ->
add_error({L,leex,missing_rules}, St);
parse_rules(_, {eof,L}, _, St) ->
@@ -464,7 +468,7 @@ parse_rules(Ifile, NextLine, Ms, REAs, As, N, St) ->
case collect_rule(Ifile, Chars, L0) of
{ok,Re,Atoks,L1} ->
{ok,REA,A,St1} = parse_rule(Re, L0, Atoks, Ms, N, St),
- parse_rules(Ifile, nextline(Ifile, L1), Ms,
+ parse_rules(Ifile, nextline(Ifile, L1, St), Ms,
[REA|REAs], [A|As], N+1, St1);
{error,E} -> add_error(E, St)
end;
@@ -497,8 +501,10 @@ collect_rule(Ifile, Chars, L0) ->
{error,E,_} -> {error,E}
end.
+collect_action(_Ifile, {error, _}, L, _Cont0) ->
+ {error, {L, leex, cannot_parse}, ignored_end_line};
collect_action(Ifile, Chars, L0, Cont0) ->
- case erl_scan:tokens(Cont0, Chars, L0) of
+ case erl_scan:tokens(Cont0, Chars, L0, [unicode]) of
{done,{ok,Toks,_},_} -> {ok,Toks,L0};
{done,{eof,_},_} -> {eof,L0};
{done,{error,E,_},_} -> {error,E,L0};
@@ -560,29 +566,32 @@ parse_code(Ifile, {ok,?CODE_HEAD ++ Rest,CodeL}, St) ->
St1 = warn_ignored_chars(CodeL, Rest, St),
{ok, CodePos} = file:position(Ifile, cur),
%% Just count the lines; copy the code from file to file later.
- NCodeLines = count_lines(Ifile, 0),
+ EndCodeLine = count_lines(Ifile, CodeL, St),
+ NCodeLines = EndCodeLine - CodeL,
{ok,{CodeL,CodePos,NCodeLines},St1};
parse_code(_, {ok,_,L}, St) ->
add_error({L,leex,missing_code}, St);
parse_code(_, {eof,L}, St) ->
add_error({L,leex,missing_code}, St).
-count_lines(File, N) ->
+count_lines(File, N, St) ->
case io:get_line(File, leex) of
eof -> N;
- _Line -> count_lines(File, N+1)
+ {error, _} -> add_error({N+1, leex, cannot_parse}, St);
+ _Line -> count_lines(File, N+1, St)
end.
-%% nextline(InputFile, PrevLineNo) -> {ok,Chars,LineNo} | {eof,LineNo}.
+%% nextline(InputFile, PrevLineNo, State) -> {ok,Chars,LineNo} | {eof,LineNo}.
%% Get the next line skipping comment lines and blank lines.
-nextline(Ifile, L) ->
+nextline(Ifile, L, St) ->
case io:get_line(Ifile, leex) of
eof -> {eof,L};
+ {error, _} -> add_error({L+1, leex, cannot_parse}, St);
Chars ->
case substr(Chars, span(Chars, " \t\n")+1) of
- [$%|_Rest] -> nextline(Ifile, L+1);
- [] -> nextline(Ifile, L+1);
+ [$%|_Rest] -> nextline(Ifile, L+1, St);
+ [] -> nextline(Ifile, L+1, St);
_Other -> {ok,Chars,L+1}
end
end.
@@ -1289,19 +1298,21 @@ out_file(St0, DFA, DF, Actions, Code) ->
try
case file:open(St0#leex.efile, [write]) of
{ok,Ofile} ->
+ set_encoding(St0, Ofile),
try
+ output_encoding_comment(Ofile, St0),
output_file_directive(Ofile, St0#leex.ifile, 0),
out_file(Ifile, Ofile, St0, DFA, DF, Actions,
Code, 1),
verbose_print(St0, "ok~n", []),
St0
- after file:close(Ofile)
+ after ok = file:close(Ofile)
end;
{error,Error} ->
verbose_print(St0, "error~n", []),
add_error({none,leex,{file_error,Error}}, St0)
end
- after file:close(Ifile)
+ after ok = file:close(Ifile)
end;
{{error,Error},Ifile} ->
add_error(Ifile, {none,leex,{file_error,Error}}, St0)
@@ -1310,7 +1321,9 @@ out_file(St0, DFA, DF, Actions, Code) ->
open_inc_file(State) ->
Ifile = State#leex.ifile,
case file:open(Ifile, [read]) of
- {ok,F} -> {ok,F};
+ {ok,F} ->
+ _ = epp:set_encoding(F),
+ {ok,F};
Error -> {Error,Ifile}
end.
@@ -1328,6 +1341,7 @@ inc_file_name(Filename) ->
out_file(Ifile, Ofile, St, DFA, DF, Actions, Code, L) ->
case io:get_line(Ifile, leex) of
eof -> output_file_directive(Ofile, St#leex.ifile, L);
+ {error, _} -> add_error(St#leex.ifile, {L, leex, cannot_parse}, St);
Line ->
case substr(Line, 1, 5) of
"##mod" -> out_module(Ofile, St);
@@ -1347,14 +1361,23 @@ out_erlang_code(File, St, Code, L) ->
output_file_directive(File, St#leex.xfile, CodeL),
{ok,Xfile} = file:open(St#leex.xfile, [read]),
try
+ set_encoding(St, Xfile),
{ok,_} = file:position(Xfile, CodePos),
- {ok,_} = file:copy(Xfile, File)
+ ok = file_copy(Xfile, File)
after
- file:close(Xfile)
+ ok = file:close(Xfile)
end,
io:nl(File),
output_file_directive(File, St#leex.ifile, L).
+file_copy(From, To) ->
+ case io:get_line(From, leex) of
+ eof -> ok;
+ Line when is_list(Line) ->
+ io:fwrite(To, "~ts", [Line]),
+ file_copy(From, To)
+ end.
+
out_dfa(File, St, DFA, Code, DF, L) ->
{_CodeL,_CodePos,NCodeLines} = Code,
%% Three file attributes before this one...
@@ -1569,7 +1592,7 @@ out_dfa_graph(St, DFA, DF) ->
io:fwrite(Gfile, "}~n", []),
verbose_print(St, "ok~n", []),
St
- after file:close(Gfile)
+ after ok = file:close(Gfile)
end;
{error,Error} ->
verbose_print(St, "error~n", []),
@@ -1610,6 +1633,16 @@ dfa_edgelabel(Cranges) ->
(C) -> [quote(C)]
end, Cranges) ++ "]".
+set_encoding(#leex{encoding = none}, File) ->
+ ok = io:setopts(File, [{encoding, epp:default_encoding()}]);
+set_encoding(#leex{encoding = E}, File) ->
+ ok = io:setopts(File, [{encoding, E}]).
+
+output_encoding_comment(_File, #leex{encoding = none}) ->
+ ok;
+output_encoding_comment(File, #leex{encoding = Encoding}) ->
+ io:fwrite(File, <<"%% ~s\n">>, [epp:encoding_to_string(Encoding)]).
+
output_file_directive(File, Filename, Line) ->
io:fwrite(File, <<"-file(~s, ~w).\n">>,
[format_filename(Filename), Line]).
diff --git a/lib/parsetools/src/yecc.erl b/lib/parsetools/src/yecc.erl
index b0792a6ed8..dbb7d025ae 100644
--- a/lib/parsetools/src/yecc.erl
+++ b/lib/parsetools/src/yecc.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -42,6 +42,7 @@
includefile,
includefile_version,
module,
+ encoding = none,
options = [],
verbose = false,
file_attrs = true,
@@ -224,7 +225,11 @@ format_error({unused_nonterminal, Nonterminal}) ->
[format_symbol(Nonterminal)]);
format_error({unused_terminal, Terminal}) ->
io_lib:fwrite("terminal symbol ~s not used",
- [format_symbol(Terminal)]).
+ [format_symbol(Terminal)]);
+format_error({bad_symbol, String}) ->
+ io_lib:fwrite("bad symbol ~ts", [String]);
+format_error(cannot_parse) ->
+ io_lib:fwrite("cannot parse; possibly encoding mismatch", []).
file(File) ->
file(File, [report_errors, report_warnings]).
@@ -257,7 +262,7 @@ yecc(Infile, Outfile, Verbose) ->
yecc(Infile, Outfile, Verbose, []).
yecc(Infilex, Outfilex, Verbose, Includefilex) ->
- statistics(runtime),
+ _ = statistics(runtime),
case file(Infilex, [{parserfile, Outfilex},
{verbose, Verbose},
{report, true},
@@ -407,7 +412,9 @@ infile(Parent, Infilex, Options) ->
St = case file:open(St0#yecc.infile, [read, read_ahead]) of
{ok, Inport} ->
try
- outfile(St0#yecc{inport = Inport})
+ Encoding = epp:set_encoding(Inport),
+ St1 = St0#yecc{inport = Inport, encoding = Encoding},
+ outfile(St1)
after
ok = file:close(Inport)
end;
@@ -428,6 +435,8 @@ outfile(St0) ->
case file:open(St0#yecc.outfile, [write, delayed_write]) of
{ok, Outport} ->
try
+ %% Set the same encoding as infile:
+ set_encoding(St0, Outport),
generate(St0#yecc{outport = Outport, line = 1})
catch
throw: St1 ->
@@ -466,13 +475,14 @@ timeit(Name, Fun, St0) ->
-define(PASS(P), {P, fun P/1}).
generate(St0) ->
+ St1 = output_encoding_comment(St0),
Passes = [?PASS(parse_grammar), ?PASS(check_grammar),
?PASS(states_and_goto_table), ?PASS(parse_actions),
?PASS(action_conflicts), ?PASS(write_file)],
- F = case member(time, St0#yecc.options) of
+ F = case member(time, St1#yecc.options) of
true ->
io:fwrite(<<"Generating parser from grammar in ~s\n">>,
- [format_filename(St0#yecc.infile)]),
+ [format_filename(St1#yecc.infile)]),
fun timeit/3;
false ->
fun(_Name, Fn, St) -> Fn(St) end
@@ -484,13 +494,13 @@ generate(St0) ->
true -> throw(St2)
end
end,
- foldl(Fun, St0, Passes).
+ foldl(Fun, St1, Passes).
parse_grammar(St) ->
parse_grammar(St#yecc.inport, 1, St).
parse_grammar(Inport, Line, St) ->
- {NextLine, Grammar} = read_grammar(Inport, Line),
+ {NextLine, Grammar} = read_grammar(Inport, St, Line),
parse_grammar(Grammar, Inport, NextLine, St).
parse_grammar(eof, _Inport, _NextLine, St) ->
@@ -523,6 +533,8 @@ parse_grammar({rule, Rule, Tokens}, St0) ->
St#yecc{rules_list = [RuleDef | St#yecc.rules_list]};
parse_grammar({prec, Prec}, St) ->
St#yecc{prec = Prec ++ St#yecc.prec};
+parse_grammar({#symbol{}, [{string,Line,String}]}, St) ->
+ add_error(Line, {bad_symbol, String}, St);
parse_grammar({#symbol{line = Line, name = Name}, Symbols}, St) ->
CF = fun(I) ->
case element(I, St) of
@@ -543,12 +555,17 @@ parse_grammar({#symbol{line = Line, name = Name}, Symbols}, St) ->
_ -> add_warning(Line, bad_declaration, St)
end.
-read_grammar(Inport, Line) ->
+read_grammar(Inport, St, Line) ->
case yeccscan:scan(Inport, '', Line) of
{eof, NextLine} ->
{NextLine, eof};
{error, {ErrorLine, Mod, What}, NextLine} ->
{NextLine, {error, ErrorLine, {error, Mod, What}}};
+ {error, terminated} ->
+ throw(St);
+ {error, _} ->
+ File = St#yecc.infile,
+ throw(add_error(File, none, cannot_parse, St));
{ok, Input, NextLine} ->
{NextLine, case yeccparser:parse(Input) of
{error, {ErrorLine, Mod, Message}} ->
@@ -738,9 +755,9 @@ states_and_goto_table(St0) ->
create_precedence_table(St).
parse_actions(St) ->
- erase(), % the pd is used when decoding lookahead sets
+ _ = erase(), % the pd is used when decoding lookahead sets
ParseActions = compute_parse_actions(St#yecc.n_states, St, []),
- erase(),
+ _ = erase(),
St#yecc{parse_actions = ParseActions, state_tab = []}.
action_conflicts(St0) ->
@@ -841,10 +858,10 @@ report_errors(St) ->
case member(report_errors, St#yecc.options) of
true ->
foreach(fun({File,{none,Mod,E}}) ->
- io:fwrite(<<"~s: ~s\n">>,
+ io:fwrite(<<"~s: ~ts\n">>,
[File,Mod:format_error(E)]);
({File,{Line,Mod,E}}) ->
- io:fwrite(<<"~s:~w: ~s\n">>,
+ io:fwrite(<<"~s:~w: ~ts\n">>,
[File,Line,Mod:format_error(E)])
end, sort(St#yecc.errors));
false ->
@@ -861,11 +878,11 @@ report_warnings(St) ->
case member(report_warnings, St#yecc.options) orelse ReportWerror of
true ->
foreach(fun({File,{none,Mod,W}}) ->
- io:fwrite(<<"~s: ~s~s\n">>,
+ io:fwrite(<<"~s: ~s~ts\n">>,
[File,Prefix,
Mod:format_error(W)]);
({File,{Line,Mod,W}}) ->
- io:fwrite(<<"~s:~w: ~s~s\n">>,
+ io:fwrite(<<"~s:~w: ~s~ts\n">>,
[File,Line,Prefix,
Mod:format_error(W)])
end, sort(St#yecc.warnings));
@@ -1024,7 +1041,7 @@ compute_states(St0) ->
rp_info = RulePointerInfo,
goto = GotoTab},
- erase(),
+ _ = erase(),
EndsymCode = code_terminal(StC#yecc.endsymbol, StC#yecc.symbol_tab),
{StateId, State0} = compute_state([{EndsymCode, 1}], Tables),
@@ -1923,9 +1940,10 @@ output_prelude(Outport, Inport, St0) when St0#yecc.includefile =:= [] ->
{St20, 0, no_erlang_code};
Next_line ->
St_10 = output_file_directive(St20, Infile, Next_line-1),
- Nmbr_of_lines = include1([], Inport, Outport),
- {St_10, Nmbr_of_lines,
- {last_erlang_code_line, Next_line+Nmbr_of_lines}}
+ Last_line = include1([], Inport, Outport, Infile,
+ Next_line, St_10),
+ Nmbr_of_lines = Last_line - Next_line,
+ {St_10, Nmbr_of_lines, {last_erlang_code_line, Last_line}}
end,
St30 = nl(St25),
IncludeFile =
@@ -1946,13 +1964,13 @@ output_prelude(Outport, Inport, St0) ->
{St30, N_lines_1, no_erlang_code};
Next_line ->
St = output_file_directive(St30, Infile, Next_line-1),
- Nmbr_of_lines = include1([], Inport, Outport),
- {St, Nmbr_of_lines + N_lines_1,
- {last_erlang_code_line, Next_line+Nmbr_of_lines}}
+ Last_line = include1([], Inport, Outport, Infile, Next_line, St),
+ Nmbr_of_lines = Last_line - Next_line,
+ {St, Nmbr_of_lines + N_lines_1, {last_erlang_code_line, Last_line}}
end.
output_header(St0) ->
- lists:foldl(fun(Str, St) -> fwrite(St, <<"~s\n">>, [Str])
+ lists:foldl(fun(Str, St) -> fwrite(St, <<"~ts\n">>, [Str])
end, St0, St0#yecc.header).
output_goto(St, [{_Nonterminal, []} | Go], StateInfo) ->
@@ -2250,8 +2268,8 @@ output_inlined(St0, FunctionName, Reduce, Infile) ->
[append(["[", tl(A), " | __Stack]"])])
end,
St = St40#yecc{line = St40#yecc.line + NLines},
- fwrite(St, <<" [begin\n ~s\n end | ~s].\n\n">>,
- [pp_tokens(Tokens, Line0), Stack]).
+ fwrite(St, <<" [begin\n ~ts\n end | ~s].\n\n">>,
+ [pp_tokens(Tokens, Line0, St#yecc.encoding), Stack]).
inlined_function_name(State, "Cat") ->
inlined_function_name(State, "");
@@ -2421,24 +2439,24 @@ include(St, File, Outport) ->
{error, Reason} ->
throw(add_error(File, none, {file_error, Reason}, St));
{ok, Inport} ->
+ _ = epp:set_encoding(Inport),
Line = io:get_line(Inport, ''),
- N_lines = include1(Line, Inport, Outport),
- file:close(Inport),
- N_lines
+ try include1(Line, Inport, Outport, File, 1, St) - 1
+ after ok = file:close(Inport)
+ end
end.
-include1(Line, Inport, Outport) ->
- include1(Line, Inport, Outport, 0).
-
-include1(eof, _, _, Nmbr_of_lines) ->
- Nmbr_of_lines;
-include1(Line, Inport, Outport, Nmbr_of_lines) ->
+include1(eof, _, _, _File, L, _St) ->
+ L;
+include1({error, _}=_Error, _Inport, _Outport, File, L, St) ->
+ throw(add_error(File, L, cannot_parse, St));
+include1(Line, Inport, Outport, File, L, St) ->
Incr = case member($\n, Line) of
true -> 1;
false -> 0
end,
io:put_chars(Outport, Line),
- include1(io:get_line(Inport, ''), Inport, Outport, Nmbr_of_lines + Incr).
+ include1(io:get_line(Inport, ''), Inport, Outport, File, L + Incr, St).
includefile_version([]) ->
{1,4};
@@ -2465,18 +2483,22 @@ parse_file(Epp) ->
end.
%% Keeps the line breaks of the original code.
-pp_tokens(Tokens, Line0) ->
- concat(pp_tokens1(Tokens, Line0, [])).
+pp_tokens(Tokens, Line0, Enc) ->
+ concat(pp_tokens1(Tokens, Line0, Enc, [])).
-pp_tokens1([], _Line0, _T0) ->
+pp_tokens1([], _Line0, _Enc, _T0) ->
[];
-pp_tokens1([T | Ts], Line0, T0) ->
+pp_tokens1([T | Ts], Line0, Enc, T0) ->
Line = element(2, T),
- [pp_sep(Line, Line0, T0), pp_symbol(T) | pp_tokens1(Ts, Line, T)].
+ [pp_sep(Line, Line0, T0), pp_symbol(T, Enc)|pp_tokens1(Ts, Line, Enc, T)].
-pp_symbol({var,_,Var}) -> Var;
-pp_symbol({_,_,Symbol}) -> io_lib:fwrite(<<"~p">>, [Symbol]);
-pp_symbol({Symbol, _}) -> Symbol.
+pp_symbol({var,_,Var}, _Enc) -> Var;
+pp_symbol({string,_,String}, latin1) ->
+ io_lib:write_unicode_string_as_latin1(String);
+pp_symbol({string,_,String}, _Enc) -> io_lib:write_unicode_string(String);
+pp_symbol({_,_,Symbol}, latin1) -> io_lib:fwrite(<<"~p">>, [Symbol]);
+pp_symbol({_,_,Symbol}, _Enc) -> io_lib:fwrite(<<"~tp">>, [Symbol]);
+pp_symbol({Symbol, _}, _Enc) -> Symbol.
pp_sep(Line, Line0, T0) when Line > Line0 ->
["\n " | pp_sep(Line - 1, Line0, T0)];
@@ -2485,6 +2507,16 @@ pp_sep(_Line, _Line0, {'.',_}) ->
pp_sep(_Line, _Line0, _T0) ->
" ".
+set_encoding(#yecc{encoding = none}, Port) ->
+ ok = io:setopts(Port, [{encoding, epp:default_encoding()}]);
+set_encoding(#yecc{encoding = E}, Port) ->
+ ok = io:setopts(Port, [{encoding, E}]).
+
+output_encoding_comment(#yecc{encoding = none}=St) ->
+ St;
+output_encoding_comment(#yecc{encoding = Encoding}=St) ->
+ fwrite(St, <<"%% ~s\n">>, [epp:encoding_to_string(Encoding)]).
+
output_file_directive(St, Filename, Line) when St#yecc.file_attrs ->
fwrite(St, <<"-file(~s, ~w).\n">>,
[format_filename(Filename), Line]);
@@ -2529,7 +2561,7 @@ format_assoc(nonassoc) ->
format_symbol(Symbol) ->
String = concat([Symbol]),
- case erl_scan:string(String) of
+ case erl_scan:string(String, 1, [unicode]) of
{ok, [{atom, _, _}], _} ->
io_lib:fwrite(<<"~w">>, [Symbol]);
{ok, [{Word, _}], _} when Word =/= ':', Word =/= '->' ->
diff --git a/lib/parsetools/src/yeccscan.erl b/lib/parsetools/src/yeccscan.erl
index d7ec3ba8d3..9e0e85143a 100644
--- a/lib/parsetools/src/yeccscan.erl
+++ b/lib/parsetools/src/yeccscan.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -24,7 +24,7 @@ scan(Inport) ->
scan(Inport, '', 1).
scan(Inport, Prompt, Line1) ->
- case catch io:scan_erl_form(Inport, Prompt, Line1) of
+ case catch io:scan_erl_form(Inport, Prompt, Line1, [unicode]) of
{eof, Line2} ->
{eof, Line2};
{ok, Tokens, Line2} ->
@@ -34,6 +34,8 @@ scan(Inport, Prompt, Line1) ->
_ ->
{ok, lex(Tokens), Line2}
end;
+ {error, Reason} ->
+ {error, Reason};
{error, Descriptor, Line2} ->
{error, Descriptor, Line2};
{'EXIT', Why} ->
diff --git a/lib/parsetools/test/leex_SUITE.erl b/lib/parsetools/test/leex_SUITE.erl
index 1e50aedf07..a0d4fd7c48 100644
--- a/lib/parsetools/test/leex_SUITE.erl
+++ b/lib/parsetools/test/leex_SUITE.erl
@@ -1,7 +1,8 @@
+%% -*= coding: latin-1 -*-
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2012. 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
@@ -42,7 +43,9 @@
-export([
file/1, compile/1, syntax/1,
- pt/1, man/1, ex/1, ex2/1, not_yet/1]).
+ pt/1, man/1, ex/1, ex2/1, not_yet/1,
+
+ otp_10302/1]).
% Default timetrap timeout (set in init_per_testcase).
-define(default_timeout, ?t:minutes(1)).
@@ -63,7 +66,8 @@ all() ->
groups() ->
[{checks, [], [file, compile, syntax]},
- {examples, [], [pt, man, ex, ex2, not_yet]}].
+ {examples, [], [pt, man, ex, ex2, not_yet]},
+ {tickets, [], [otp_10302]}].
init_per_suite(Config) ->
Config.
@@ -875,6 +879,111 @@ not_yet(Config) when is_list(Config) ->
ok.
+otp_10302(doc) ->
+ "OTP-10302. Unicode characters scanner/parser.";
+otp_10302(suite) -> [];
+otp_10302(Config) when is_list(Config) ->
+ Dir = ?privdir,
+ Filename = filename:join(Dir, "file.xrl"),
+ Ret = [return, {report, true}],
+
+ ok = file:write_file(Filename,<<
+ "%% coding: UTF-8\n"
+ "�"
+ >>),
+ {error,[{_,[{2,leex,cannot_parse}]}],[]} =
+ leex:file(Filename, Ret),
+
+ ok = file:write_file(Filename,<<
+ "%% coding: UTF-8\n"
+ "Definitions.\n"
+ "�"
+ >>),
+ {error,[{_,[{3,leex,cannot_parse}]}],[]} = leex:file(Filename, Ret),
+
+ ok = file:write_file(Filename,<<
+ "%% coding: UTF-8\n"
+ "Definitions.\n"
+ "A = a\n"
+ "L = [{A}-{Z}]\n"
+ "Z = z\n"
+ "Rules.\n"
+ "{L}+ : {token,{list_to_atom(TokenChars),H�pp}}.\n"
+ >>),
+ {error,[{_,[{7,leex,cannot_parse}]}],[]} = leex:file(Filename, Ret),
+
+ ok = file:write_file(Filename,<<
+ "%% coding: UTF-8\n"
+ "Definitions.\n"
+ "A = a\n"
+ "L = [{A}-{Z}]\n"
+ "Z = z\n"
+ "Rules.\n"
+ "{L}+ : {token,{list_to_atom(TokenChars)}}.\n"
+ "Erlang code.\n"
+ "-export([t/0]).\n"
+ "t() ->\n"
+ " H�pp\n"
+ >>),
+ {error,[{_,[{11,leex,cannot_parse}]}],[]} = leex:file(Filename, Ret),
+
+ Mini = <<"Definitions.\n"
+ "D = [0-9]\n"
+ "Rules.\n"
+ "{L}+ : {token,{word,TokenLine,TokenChars}}.\n"
+ "Erlang code.\n">>,
+ LeexPre = filename:join(Dir, "leexinc.hrl"),
+ ?line ok = file:write_file(LeexPre, <<"%% coding: UTF-8\n �">>),
+ PreErrors = run_test(Config, Mini, LeexPre),
+ {error,[{IncludeFile,[{2,leex,cannot_parse}]}],[]} = PreErrors,
+ "leexinc.hrl" = filename:basename(IncludeFile),
+
+ Ts = [{uni_1,
+ <<"%% coding: UTF-8\n"
+ "Definitions.\n"
+ "A = a\n"
+ "L = [{A}-{Z}]\n"
+ "Z = z\n"
+ "Rules.\n"
+ "{L}+ : {token,{list_to_atom(TokenChars),\n"
+ "begin Häpp = foo, Häpp end,"
+ " 'Häpp',\"\\x{400}B\",\"örn_Ѐ\"}}.\n"
+ "Erlang code.\n"
+ "-export([t/0]).\n"
+ "t() ->\n"
+ " %% Häpp, 'Häpp',\"\\x{400}B\",\"örn_Ѐ\"\n"
+ " {ok, [R], 1} = string(\"tip\"),\n"
+ " {tip,foo,'Häpp',[1024,66],[246,114,110,95,1024]} = R,\n"
+ " Häpp = foo,\n"
+ " {tip, Häpp, 'Häpp',\"\\x{400}B\",\"örn_Ѐ\"} = R,\n"
+ " ok.\n">>,
+ default,
+ ok},
+ {uni_2,
+ <<"%% coding: Latin-1\n"
+ "Definitions.\n"
+ "A = a\n"
+ "L = [{A}-{Z}]\n"
+ "Z = z\n"
+ "Rules.\n"
+ "{L}+ : {token,{list_to_atom(TokenChars),\n"
+ "begin H�pp = foo, H�pp end,"
+ " 'H�pp',\"\\x{400}B\",\"örn_Ѐ\"}}.\n"
+ "Erlang code.\n"
+ "-export([t/0]).\n"
+ "t() ->\n"
+ " %% H�pp, 'H�pp',\"\\x{400}B\",\"örn_Ѐ\"\n"
+ " {ok, [R], 1} = string(\"tip\"),\n"
+ " {tip,foo,'H�pp',[1024,66],[195,182,114,110,95,208,128]} = R,\n"
+ " H�pp = foo,\n"
+ " {tip, H�pp, 'H�pp',\"\\x{400}B\",\"örn_Ѐ\"} = R,\n"
+ " ok.\n">>,
+ default,
+ ok}],
+ run(Config, Ts),
+
+ ok.
+
unwritable(Fname) ->
{ok, Info} = file:read_file_info(Fname),
Mode = Info#file_info.mode - 8#00200,
diff --git a/lib/parsetools/test/yecc_SUITE.erl b/lib/parsetools/test/yecc_SUITE.erl
index 3d26adf1be..c306dbe833 100644
--- a/lib/parsetools/test/yecc_SUITE.erl
+++ b/lib/parsetools/test/yecc_SUITE.erl
@@ -1,7 +1,8 @@
+%% -*- coding: latin-1 -*-
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2005-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2012. 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
@@ -48,7 +49,7 @@
otp_5369/1, otp_6362/1, otp_7945/1, otp_8483/1, otp_8486/1,
- otp_7292/1, otp_7969/1, otp_8919/1]).
+ otp_7292/1, otp_7969/1, otp_8919/1, otp_10302/1]).
% Default timetrap timeout (set in init_per_testcase).
-define(default_timeout, ?t:minutes(1)).
@@ -75,7 +76,7 @@ groups() ->
[empty, prec, yeccpre, lalr, old_yecc, other_examples]},
{bugs, [],
[otp_5369, otp_6362, otp_7945, otp_8483, otp_8486]},
- {improvements, [], [otp_7292, otp_7969, otp_8919]}].
+ {improvements, [], [otp_7292, otp_7969, otp_8919, otp_10302]}].
init_per_suite(Config) ->
Config.
@@ -1815,6 +1816,153 @@ otp_8919(Config) when is_list(Config) ->
"syntax error before: \"hello\"" = lists:flatten(Mod:format_error(Mess)),
ok.
+otp_10302(doc) ->
+ "OTP-10302. Unicode characters scanner/parser.";
+otp_10302(suite) -> [];
+otp_10302(Config) when is_list(Config) ->
+ Dir = ?privdir,
+ Filename = filename:join(Dir, "OTP-10302.yrl"),
+ Ret = [return, {report, true}],
+ Mini1 = <<"%% coding: utf-8
+ Nonterminals H�pp.
+ nt -> t.">>,
+ ok = file:write_file(Filename, Mini1),
+ %% This could (and should) be refined:
+ {error,[{Filename,[{2,Mod1,Err1}]}],[]} =
+ yecc:file(Filename, Ret),
+ "cannot translate from UTF-8" = Mod1:format_error(Err1),
+
+ Mini2 = <<"%% coding: Utf-8
+ Nonterminals Hopp.
+ Terminals t.
+ Rootsymbol Hopp.
+
+ Hopp -> t.
+
+ Erlang code.
+
+ t() ->
+ H�pp.">>,
+ ok = file:write_file(Filename, Mini2),
+ {error,[{Filename,[{11,Mod2,Err2}]}],[]} =
+ yecc:file(Filename, Ret),
+ "cannot parse; possibly encoding mismatch" = Mod2:format_error(Err2),
+
+ Mini3 = <<"%% coding: latin-1
+ Nonterminals Hopp.
+ Terminals t.
+ Rootsymbol Hopp.
+
+ Hopp -> t.
+
+ Erlang code.
+
+ t() ->
+ H�pp.">>,
+ ok = file:write_file(Filename, Mini3),
+ YeccPre = filename:join(Dir, "yeccpre.hrl"),
+ ok = file:write_file(YeccPre, [<<"%% coding: UTF-8\n �.\n">>]),
+ Inc = [{includefile,YeccPre}],
+ {error,[{_,[{2,yecc,cannot_parse}]}],[]} =
+ yecc:file(Filename, Inc ++ Ret),
+
+ ok = file:write_file(Filename,
+ <<"%% coding: UTF-8
+ Nonterminals Hopp.
+ Terminals t.
+ Rootsymbol \"örn_Ѐ\".
+ Hopp -> t : '$1'.">>),
+ {error,[{Filename,[{4,yecc,{bad_symbol,"�rn_"++[1024]}}]}],[]} =
+ yecc:file(Filename, Ret),
+
+ ok = file:write_file(Filename,
+ <<"%% coding: UTF-8
+ Nonterminals Hopp.
+ Terminals t.
+ Rootsymbol Hopp.
+ Endsymbol \"örn_Ѐ\".
+ Hopp -> t : '$1'.">>),
+ {error,[{Filename,[{5,yecc,{bad_symbol,"�rn_"++[1024]}}]}],[]} =
+ yecc:file(Filename, Ret),
+
+ ok = file:write_file(Filename,
+ <<"%% coding: UTF-8
+ Nonterminals Hopp.
+ Terminals t.
+ Rootsymbol Hopp.
+ Expect \"örn_Ѐ\".
+ Hopp -> t : '$1'.">>),
+ {error,[{Filename,[{5,yecc,{bad_symbol,"�rn_"++[1024]}}]}],[]} =
+ yecc:file(Filename, Ret),
+
+ ok = file:write_file(Filename,
+ <<"%% coding: UTF-8
+ Nonterminals Hopp.
+ Terminals t.
+ Rootsymbol Hopp.
+ States \"örn_Ѐ\".
+ Hopp -> t : '$1'.">>),
+ {error,[{Filename,[{5,yecc,{bad_symbol,"�rn_"++[1024]}}]}],[]} =
+ yecc:file(Filename, Ret),
+
+ Ts = [{otp_10302_1,<<"
+ %% coding: UTF-8
+ Header \"%% örn_Ѐ\" \"%% \\x{400}B\".
+ Nonterminals Häpp list.
+ Terminals element.
+ Rootsymbol Häpp.
+
+ Häpp -> list : '$1'.
+
+ list -> element : '$1'.
+ list -> list element :
+ begin
+ Häpp = foo,
+ {Häpp, 'Häpp',\"\\x{400}B\",\"örn_Ѐ\"}
+ end.
+
+ Erlang code.
+
+ -export([t/0]).
+
+ t() ->
+ L = [{element, 1}, {element,2}],
+ {ok, R} = parse(L),
+ Häpp = foo,
+ {_,_,[1024,66],[246,114,110,95,1024]} = R,
+ {Häpp,'Häpp',\"\\x{400}B\",\"örn_Ѐ\"} = R,
+ ok.
+ ">>,default,ok},
+ {otp_10302_2,<<"
+ %% coding: Latin-1
+ Nonterminals H�pp list.
+ Terminals element.
+ Rootsymbol H�pp.
+
+ H�pp -> list : '$1'.
+
+ list -> element : '$1'.
+ list -> list element :
+ begin
+ H�pp = foo,
+ {H�pp, 'H�pp',\"\\x{400}B\",\"örn_Ѐ\"}
+ end.
+
+ Erlang code.
+
+ -export([t/0]).
+
+ t() ->
+ L = [{element, 1}, {element,2}],
+ {ok, R} = parse(L),
+ H�pp = foo,
+ {_,_,[1024,66],[195,182,114,110,95,208,128]} = R,
+ {H�pp,'H�pp',\"\\x{400}B\",\"örn_Ѐ\"} = R,
+ ok.
+ ">>,default,ok}],
+ run(Config, Ts),
+ ok.
+
yeccpre_size() ->
yeccpre_size(default_yeccpre()).
diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile
index 50f6427eaa..6f1e61e70c 100644
--- a/lib/stdlib/doc/src/Makefile
+++ b/lib/stdlib/doc/src/Makefile
@@ -101,7 +101,6 @@ XML_REF6_FILES = stdlib_app.xml
XML_PART_FILES = part.xml part_notes.xml part_notes_history.xml
XML_CHAPTER_FILES = io_protocol.xml unicode_usage.xml notes.xml notes_history.xml
-GIF_FILES = ushell1.gif ushell2.gif ushell3.gif
BOOK_FILES = book.xml
@@ -112,8 +111,7 @@ XML_FILES = \
# ----------------------------------------------------
HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
- $(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html) \
- $(GIF_FILES:%.gif=$(HTMLDIR)/%.gif)
+ $(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
INFO_FILE = ../../info
@@ -138,21 +136,16 @@ SPECS_FLAGS = -I../../include -I../../../kernel/include
# ----------------------------------------------------
# Targets
# ----------------------------------------------------
-$(HTMLDIR)/%.gif: %.gif
- $(INSTALL_DATA) $< $@
-
docs: man pdf html
$(TOP_PDF_FILE): $(XML_FILES)
pdf: $(TOP_PDF_FILE)
-html: gifs $(HTML_REF_MAN_FILE)
+html: $(HTML_REF_MAN_FILE)
man: $(MAN3_FILES) $(MAN6_FILES)
-gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
-
debug opt:
clean clean_docs:
diff --git a/lib/stdlib/doc/src/epp.xml b/lib/stdlib/doc/src/epp.xml
index 386ed89fe1..3e8aba2e5f 100644
--- a/lib/stdlib/doc/src/epp.xml
+++ b/lib/stdlib/doc/src/epp.xml
@@ -37,6 +37,18 @@
<p>The Erlang code preprocessor includes functions which are used
by <c>compile</c> to preprocess macros and include files before
the actual parsing takes place.</p>
+ <p>The Erlang source file <marker
+ id="encoding"><em>encoding</em></marker> is selected by a
+ comment in one of the first two lines of the source file. The
+ first string that matches the regular expression
+ <c>coding\s*[:=]\s*([-a-zA-Z0-9])+</c> selects the encoding. If
+ the matching string is not a valid encoding it is ignored. The
+ valid encodings are <c>Latin-1</c> and <c>UTF-8</c> where the
+ case of the characters can be chosen freely. Examples:</p>
+ <pre>
+%% coding: utf-8
+%% For this file we have chosen encoding = Latin-1
+%% -*- coding: latin-1 -*-</pre>
</description>
<datatypes>
<datatype>
@@ -46,6 +58,9 @@
<name name="epp_handle"></name>
<desc><p>Handle to the epp server.</p></desc>
</datatype>
+ <datatype>
+ <name name="source_encoding"></name>
+ </datatype>
</datatypes>
<funcs>
<func>
@@ -83,6 +98,50 @@
</desc>
</func>
<func>
+ <name name="default_encoding" arity="0"/>
+ <fsummary>Return the default encoding of Erlang source files</fsummary>
+ <desc>
+ <p>Returns the default encoding of Erlang source files.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="encoding_to_string" arity="1"/>
+ <fsummary>Return a string representation of an encoding</fsummary>
+ <desc>
+ <p>Returns a string representation of an encoding. The string
+ is recognized by <c>read_encoding/1,2</c> and
+ <c>set_encoding/1</c> as a valid encoding.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="read_encoding" arity="1"/>
+ <name name="read_encoding" arity="2"/>
+ <fsummary>Read the encoding from a file</fsummary>
+ <desc>
+ <p>Read the <seealso marker="#encoding">encoding</seealso> from
+ a file. Returns the read encoding, or <c>none</c> if no
+ valid encoding was found.</p>
+ <p>The option <c>in_comment_only</c> is <c>true</c> by
+ default, which is correct for Erlang source files. If set to
+ <c>false</c> the encoding string does not necessarily have to
+ occur in a comment.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="set_encoding" arity="1"/>
+ <fsummary>Read and set the encoding of an IO device</fsummary>
+ <desc>
+ <p>Reads the <seealso marker="#encoding">encoding</seealso> from
+ an IO device and sets the encoding of the device
+ accordingly. The position of the IO device referenced by
+ <c><anno>File</anno></c> is not affected. If no valid
+ encoding can be read from the IO device the encoding of the
+ IO device is set to the default encoding.</p>
+ <p>Returns the read encoding, or <c>none</c> if no valid
+ encoding was found.</p>
+ </desc>
+ </func>
+ <func>
<name name="format_error" arity="1"/>
<fsummary>Format an error descriptor</fsummary>
<desc>
diff --git a/lib/stdlib/doc/src/erl_pp.xml b/lib/stdlib/doc/src/erl_pp.xml
index 57b5828bcd..9ae4f3d91f 100644
--- a/lib/stdlib/doc/src/erl_pp.xml
+++ b/lib/stdlib/doc/src/erl_pp.xml
@@ -5,7 +5,7 @@
<header>
<copyright>
<year>1996</year>
- <year>2011</year>
+ <year>2012</year>
<holder>Ericsson AB, All Rights Reserved</holder>
</copyright>
<legalnotice>
@@ -63,6 +63,12 @@
breaks and only a space is used as a separator.</p>
</desc>
</datatype>
+ <datatype>
+ <name name="option"/>
+ </datatype>
+ <datatype>
+ <name name="options"/>
+ </datatype>
</datatypes>
<funcs>
<func>
diff --git a/lib/stdlib/doc/src/io.xml b/lib/stdlib/doc/src/io.xml
index e6d262466c..ed425ce723 100644
--- a/lib/stdlib/doc/src/io.xml
+++ b/lib/stdlib/doc/src/io.xml
@@ -4,7 +4,7 @@
<erlref>
<header>
<copyright>
- <year>1996</year><year>2011</year>
+ <year>1996</year><year>2012</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -312,11 +312,14 @@
</func>
<func>
<name name="read" arity="3"/>
+ <name name="read" arity="4"/>
<fsummary>Read a term</fsummary>
<desc>
<p>Reads a term <c><anno>Term</anno></c> from <c><anno>IoDevice</anno></c>, prompting it
with <c><anno>Prompt</anno></c>. Reading starts at line number
- <c><anno>StartLine</anno></c>. It returns:</p>
+ <c><anno>StartLine</anno></c>. The argument
+ <c><anno>Options</anno></c> is passed on as the <c>Options</c>
+ argument of the <c>erl_scan:tokens/4</c> function. It returns:</p>
<taglist>
<tag><c>{ok, Term, <anno>EndLine</anno>}</c></tag>
<item>
@@ -476,8 +479,10 @@ ok
<p>Writes the data with standard syntax in the same way as
<c>~w</c>, but breaks terms whose printed representation
is longer than one line into many lines and indents each
- line sensibly. It also tries to detect lists of printable
- characters and to output these as strings. For example:</p>
+ line sensibly. It also tries to detect lists of
+ printable characters and to output these as strings. The
+ Unicode translation modifier is used for determining
+ what characters are printable. For example:</p>
<pre>
5> <input>T = [{attributes,[[{id,age,1.50000},{mode,explicit},</input>
<input>{typename,"INTEGER"}], [{id,cho},{mode,explicit},{typename,'Cho'}]]},</input>
@@ -516,6 +521,19 @@ Here T = [{attributes,[[{id,age,1.5},
{tag,{'PRIVATE',3}},
{mode,implicit}]
ok</pre>
+ <p>Binaries that look like UTF-8 encoded strings will be
+ output with the string syntax if the Unicode translation
+ modifier is given:</p>
+ <pre>
+9> <input>io:fwrite("~p~n",[[1024]]).</input>
+[1024]
+10> <input>io:fwrite("~tp~n",[[1024]]).</input>
+"\x{400}"
+11> <input>io:fwrite("~tp~n", [&lt;&lt;128,128&gt;&gt;]).</input>
+&lt;&lt;128,128&gt;&gt;
+12> <input>io:fwrite("~tp~n", [&lt;&lt;208,128&gt;&gt;]).</input>
+&lt;&lt;"\x{400}"/utf8&gt;&gt;
+ok</pre>
</item>
<tag><c>W</c></tag>
<item>
@@ -805,11 +823,15 @@ enter><input>:</input> <input>alan</input> <input>:</input> <input>joe</in
<name name="scan_erl_exprs" arity="1"/>
<name name="scan_erl_exprs" arity="2"/>
<name name="scan_erl_exprs" arity="3"/>
+ <name name="scan_erl_exprs" arity="4"/>
<fsummary>Read and tokenize Erlang expressions</fsummary>
<desc>
<p>Reads data from the standard input (<c>IoDevice</c>),
prompting it with <c>Prompt</c>. Reading starts at line number
- <c>StartLine</c> (1). The data is tokenized as if it were a
+ <c>StartLine</c> (1). The argument <c><anno>Options</anno></c>
+ is passed on as the <c>Options</c> argument of the
+ <c>erl_scan:tokens/4</c> function. The data is tokenized as if
+ it were a
sequence of Erlang expressions until a final <c>'.'</c> is
reached. This token is also returned. It returns:</p>
<taglist>
@@ -840,11 +862,15 @@ enter><input>1.0er.</input>
<name name="scan_erl_form" arity="1"/>
<name name="scan_erl_form" arity="2"/>
<name name="scan_erl_form" arity="3"/>
+ <name name="scan_erl_form" arity="4"/>
<fsummary>Read and tokenize an Erlang form</fsummary>
<desc>
<p>Reads data from the standard input (<c><anno>IoDevice</anno></c>),
- prompting it with <c><anno>Prompt</anno></c>. Starts reading at line number
- <c><anno>StartLine</anno></c> (1). The data is tokenized as if it were an
+ prompting it with <c><anno>Prompt</anno></c>. Starts reading
+ at line number <c><anno>StartLine</anno></c> (1). The
+ argument <c><anno>Options</anno></c> is passed on as the
+ <c>Options</c> argument of the <c>erl_scan:tokens/4</c>
+ function. The data is tokenized as if it were an
Erlang form - one of the valid Erlang expressions in an
Erlang source file - until a final <c>'.'</c> is reached.
This last token is also returned. The return values are the
@@ -855,14 +881,19 @@ enter><input>1.0er.</input>
<name name="parse_erl_exprs" arity="1"/>
<name name="parse_erl_exprs" arity="2"/>
<name name="parse_erl_exprs" arity="3"/>
+ <name name="parse_erl_exprs" arity="4"/>
<type name="parse_ret"/>
<fsummary>Read, tokenize and parse Erlang expressions</fsummary>
<desc>
- <p>Reads data from the standard input (<c><anno>IoDevice</anno></c>),
- prompting it with <c><anno>Prompt</anno></c>. Starts reading at line number
- <c><anno>StartLine</anno></c> (1). The data is tokenized and parsed as if
- it were a sequence of Erlang expressions until a final '.' is
- reached. It returns:</p>
+ <p>Reads data from the standard input
+ (<c><anno>IoDevice</anno></c>), prompting it with
+ <c><anno>Prompt</anno></c>. Starts reading at line number
+ <c><anno>StartLine</anno></c> (1). The argument
+ <c><anno>Options</anno></c> is passed on as the
+ <c>Options</c> argument of the <c>erl_scan:tokens/4</c>
+ function. The data is tokenized and parsed as if it were a
+ sequence of Erlang expressions until a final '.' is reached.
+ It returns:</p>
<taglist>
<tag><c>{ok, ExprList, EndLine}</c></tag>
<item>
@@ -891,12 +922,16 @@ enter><input>abc("hey".</input>
<name name="parse_erl_form" arity="1"/>
<name name="parse_erl_form" arity="2"/>
<name name="parse_erl_form" arity="3"/>
+ <name name="parse_erl_form" arity="4"/>
<type name="parse_form_ret"/>
<fsummary>Read, tokenize and parse an Erlang form</fsummary>
<desc>
<p>Reads data from the standard input (<c><anno>IoDevice</anno></c>),
- prompting it with <c><anno>Prompt</anno></c>. Starts reading at line number
- <c><anno>StartLine</anno></c> (1). The data is tokenized and parsed as if
+ prompting it with <c><anno>Prompt</anno></c>. Starts reading at
+ line number <c><anno>StartLine</anno></c> (1). The argument
+ <c><anno>Options</anno></c> is passed on as the
+ <c>Options</c> argument of the <c>erl_scan:tokens/4</c>
+ function. The data is tokenized and parsed as if
it were an Erlang form - one of the valid Erlang expressions
in an Erlang source file - until a final '.' is reached. It
returns:</p>
diff --git a/lib/stdlib/doc/src/io_lib.xml b/lib/stdlib/doc/src/io_lib.xml
index 506c1792f1..32ef2893eb 100644
--- a/lib/stdlib/doc/src/io_lib.xml
+++ b/lib/stdlib/doc/src/io_lib.xml
@@ -4,7 +4,7 @@
<erlref>
<header>
<copyright>
- <year>1996</year><year>2011</year>
+ <year>1996</year><year>2012</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -43,6 +43,12 @@
<name name="chars"/>
</datatype>
<datatype>
+ <name name="unicode_chars"/>
+ </datatype>
+ <datatype>
+ <name name="unicode_string"/>
+ </datatype>
+ <datatype>
<name name="continuation"/>
<desc><p>A continuation as returned by <seealso marker="#fread/3"><c>fread/3</c></seealso>.</p>
</desc>
@@ -209,6 +215,23 @@
</desc>
</func>
<func>
+ <name name="write_unicode_string" arity="1"/>
+ <fsummary>Write a Unicode string</fsummary>
+ <desc>
+ <p>Returns the list of characters needed to print
+ <c><anno>UnicodeString</anno></c> as a string.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="write_unicode_string_as_latin1" arity="1"/>
+ <fsummary>Write a Unicode string</fsummary>
+ <desc>
+ <p>Returns the list of characters needed to print
+ <c><anno>UnicodeString</anno></c> as a string. Non-Latin-1
+ characters are escaped.</p>
+ </desc>
+ </func>
+ <func>
<name name="write_char" arity="1"/>
<fsummary>Write a character</fsummary>
<desc>
@@ -217,6 +240,23 @@
</desc>
</func>
<func>
+ <name name="write_unicode_char" arity="1"/>
+ <fsummary>Write a Unicode character</fsummary>
+ <desc>
+ <p>Returns the list of characters needed to print a character
+ constant in the Unicode character set.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="write_unicode_char_as_latin1" arity="1"/>
+ <fsummary>Write a Unicode character</fsummary>
+ <desc>
+ <p>Returns the list of characters needed to print a character
+ constant in the Unicode character set. Non-Latin-1 characters
+ are escaped.</p>
+ </desc>
+ </func>
+ <func>
<name name="indentation" arity="2"/>
<fsummary>Indentation after printing string</fsummary>
<desc>
@@ -233,6 +273,14 @@
</desc>
</func>
<func>
+ <name name="unicode_char_list" arity="1"/>
+ <fsummary>Test for a list of Unicode characters</fsummary>
+ <desc>
+ <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a flat list of
+ characters in the Unicode range, otherwise it returns <c>false</c>.</p>
+ </desc>
+ </func>
+ <func>
<name name="deep_char_list" arity="1"/>
<fsummary>Test for a deep list of characters</fsummary>
<desc>
@@ -241,6 +289,14 @@
</desc>
</func>
<func>
+ <name name="deep_unicode_char_list" arity="1"/>
+ <fsummary>Test for a deep list of Unicode characters</fsummary>
+ <desc>
+ <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a, possibly deep, list
+ of characters in the Unicode range, otherwise it returns <c>false</c>.</p>
+ </desc>
+ </func>
+ <func>
<name name="printable_list" arity="1"/>
<fsummary>Test for a list of printable ISO-latin-1 characters</fsummary>
<desc>
@@ -248,6 +304,14 @@
printable ISO-latin-1 characters, otherwise it returns <c>false</c>.</p>
</desc>
</func>
+ <func>
+ <name name="printable_unicode_list" arity="1"/>
+ <fsummary>Test for a list of printable Unicode characters</fsummary>
+ <desc>
+ <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a flat list of
+ printable Unicode characters, otherwise it returns <c>false</c>.</p>
+ </desc>
+ </func>
</funcs>
</erlref>
diff --git a/lib/stdlib/doc/src/unicode_usage.xml b/lib/stdlib/doc/src/unicode_usage.xml
index bbcd49a934..e93d49b24a 100644
--- a/lib/stdlib/doc/src/unicode_usage.xml
+++ b/lib/stdlib/doc/src/unicode_usage.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="latin1" ?>
+<?xml version="1.0" encoding="utf8" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">
<chapter>
@@ -33,7 +33,7 @@
<file>unicode_usage.xml</file>
</header>
<p>Implementing support for Unicode character sets is an ongoing process. The Erlang Enhancement Proposal (EEP) 10 outlines the basics of Unicode support and also specifies a default encoding in binaries that all Unicode-aware modules should handle in the future.</p>
-<p>The functionality described in EEP10 is implemented in Erlang/OTP as of R13A, but that's by no means the end of it. More functionality will be needed in the future and more OTP-libraries might need updating to cope with Unicode data. One example of future development is obvious when reading this manual, our documentation format is limited to the ISO-latin-1 character range, why no Unicode characters beyond that range will occur in this document.</p>
+<p>The functionality described in EEP10 is implemented in Erlang/OTP as of R13A, but that's by no means the end of it. More functionality will be needed in the future and more OTP-libraries might need updating to cope with Unicode data.</p>
<p>This guide outlines the current Unicode support and gives a couple of recipes for working with Unicode data.</p>
<section>
<title>What Unicode is</title>
@@ -61,20 +61,20 @@
<p>The standard list encoding for strings is therefore easily extendible to cope with the whole Unicode range: A Unicode string in Erlang is simply a list containing integers, each integer being a valid Unicode codepoint and representing one character in the Unicode character set.</p>
<p>Regular Erlang strings in ISO-latin-1 are a subset of their Unicode strings.</p>
-<p>Binaries on the other hand are more troublesome. For performance reasons, programs often store textual data in binaries instead of lists, mainly because they are more compact (one byte per character instead of two words per character, as is the case with lists). Using erlang:list_to_binary/1, an regular Erlang string can be converted into a binary, effectively using the ISO-latin-1 encoding in the binary - one byte per character. This is very convenient for those regular Erlang strings, but cannot be done for Unicode lists.</p>
+<p>Binaries on the other hand are more troublesome. For performance reasons, programs often store textual data in binaries instead of lists, mainly because they are more compact (one byte per character instead of two words per character, as is the case with lists). Using erlang:list_to_binary/1, a regular Erlang string can be converted into a binary, effectively using the ISO-latin-1 encoding in the binary - one byte per character. This is very convenient for those regular Erlang strings, but cannot be done for Unicode lists.</p>
<p>As the UTF-8 encoding is widely spread and provides the most compact storage, it is selected as the standard encoding of Unicode characters in binaries for Erlang.</p>
<p>The standard binary encoding is used whenever a library function in Erlang should cope with Unicode data in binaries, but is of course not enforced when communicating externally. Functions and bit-syntax exist to encode and decode both UTF-8, UTF-16 and UTF-32 in binaries. Library functions dealing with binaries and Unicode in general, however, only deal with the default encoding.</p>
<p>Character data may be combined from several sources, sometimes available in a mix of strings and binaries. Erlang has for long had the concept of iodata or iolists, where binaries and lists can be combined to represent a sequence of bytes. In the same way, the Unicode aware modules often allow for combinations of binaries and lists where the binaries have characters encoded in UTF-8 and the lists contain such binaries or numbers representing Unicode codepoints:</p>
<code type="none">
unicode_binary() = binary() with characters encoded in UTF-8 coding standard
-unicode_char() = integer() representing valid unicode codepoint
+unicode_char() = integer() >= 0 representing valid unicode codepoint
chardata() = charlist() | unicode_binary()
charlist() = [unicode_char() | unicode_binary() | charlist()]
a unicode_binary is allowed as the tail of the list</code>
-<p>The module <c>unicode</c> in stdlib even supports similar mixes with binaries containing other encodings than UTF-8, but that is a special case to allow for conversions to and from external data:</p>
+<p>The module <c>unicode</c> in STDLIB even supports similar mixes with binaries containing other encodings than UTF-8, but that is a special case to allow for conversions to and from external data:</p>
<code type="none">
external_unicode_binary() = binary() with characters coded in a user specified Unicode
encoding other than UTF-8 (UTF-16 or UTF-32)
@@ -82,12 +82,18 @@ external_unicode_binary() = binary() with characters coded in a user specified U
external_chardata() = external_charlist() | external_unicode_binary()
external_charlist() = [unicode_char() | external_unicode_binary() | external_charlist()]
- an external_unicode_binary is allowed as the tail of the list</code>
+ an external_unicode_binary() is allowed as the tail of the list</code>
</section>
<section>
<title>Basic language support for Unicode</title>
-<p>First of all, Erlang is still defined to be written in the ISO-latin-1 character set. Functions have to be named in that character set, atoms are restricted to ISO-latin-1 and regular strings are still lists of characters 0..255 in the ISO-latin-1 encoding. This has not (yet) changed, but the language has been slightly extended to cope with Unicode characters and encodings.</p>
-
+<p><marker id="unicode_in_erlang"/>As of Erlang/OTP R16 Erlang can be
+written in ISO-latin-1 or Unicode (UTF-8). The details on how to state
+the encoding of an Erlang source file can be found in <seealso
+marker="stdlib:epp#encoding">epp(3)</seealso>. Strings and comments
+can be written using Unicode, but functions still have to be named in
+ISO-latin-1 and atoms are restricted to ISO-latin-1. Erlang/OTP R18 is
+expected to handle functions named in Unicode as well as Unicode
+atoms.</p>
<section>
<title>Bit-syntax</title>
<p>The bit-syntax contains types for coping with binary data in the three main encodings. The types are named <c>utf8</c>, <c>utf16</c> and <c>utf32</c> respectively. The <c>utf16</c> and <c>utf32</c> types can be in a big- or little-endian variant:</p>
@@ -102,35 +108,19 @@ Bin4 = &lt;&lt;"Hello"/utf16&gt;&gt;,</code>
</section>
<section>
<title>String- and character-literals</title>
-<warning>
-<p>The literal syntax described here may be subject to change in R13B, it has not yet passed the usual process for language changes approval.</p>
-</warning>
-<p>It is convenient to be able to write a list of Unicode characters in the string syntax. However, the language specifies strings as being in the ISO-latin-1 character set which the compiler tool chain as well as many other tools expect.</p>
-<p>Also the source code is (for now) still expected to be written using the ISO-latin-1 character set, why Unicode characters beyond that range cannot be entered in string literals.</p>
-<p>To make it easier to enter Unicode characters in the shell, it allows strings with Unicode characters on input, immediately converting them to regular lists of integers. They will, by the evaluator etc be viewed as if they were input using the regular list syntax, which is - in the end - how the language actually treats them. They will in the same way not be output as strings by i.e <c>io:write/2</c> or <c>io:format/3</c> unless the format string supplied to <c>io:format</c> uses the Unicode translation modifier (which we will talk about later).</p>
-<p>For source code, there is an extension to the \OOO (backslash followed by three octal numbers) and \xHH (backslash followed by 'x', followed by two hexadecimal characters) syntax, namely \x{H ...} (a backslash followed by an 'x', followed by left curly bracket, any number of hexadecimal digits and a terminating right curly bracket). This allows for entering characters of any codepoint literally in a string. The string is immediately converted into a list by the scanner however, which is obvious when calling it directly:</p>
-<pre>
-1> <input>erl_scan:string("\"X\".").</input>
-{ok,[{string,1,"X"},{dot,1}],1}
-2> <input>erl_scan:string("\"\x{400}\".").</input>
-{ok,[{'[',1},{integer,1,1024},{']',1},{dot,1}],1}</pre>
-<p>Character literals, or rather integers representing Unicode codepoints can be expressed in a similar way using $\x{H ...}:</p>
-<pre>
-4> <input>$\x{400}.</input>
-1024</pre>
-<p>This also is a translation by the scanner:</p>
-<pre>
-5> <input>erl_scan:string("$Y.").</input>
-{ok,[{char,1,89},{dot,1}],1}
-6> <input>erl_scan:string("$\x{400}.").</input>
-{ok,[{integer,1,1024},{dot,1}],1}</pre>
-<p>In the shell, if using a Unicode input device, '$' can be followed directly by a Unicode character producing an integer. In the following example, let's imagine the character 'c' is actually a Cyrillic 's' (looking fairly similar):</p>
+<p>For source code, there is an extension to the \OOO (backslash
+followed by three octal numbers) and \xHH (backslash followed by 'x',
+followed by two hexadecimal characters) syntax, namely \x{H ...} (a
+backslash followed by an 'x', followed by left curly bracket, any
+number of hexadecimal digits and a terminating right curly bracket).
+This allows for entering characters of any codepoint literally in a
+string even when the encoding is ISO-latin-1.</p>
+</section>
+<p>In the shell, if using a Unicode input device, '$' can be followed directly by a Unicode character producing an integer. In the following example the codepoint of a Cyrillic 's' is output:</p>
<pre>
-7> <input>$c.</input>
+7> <input>$с.</input>
1089</pre>
</section>
-<p>The literal syntax allowing Unicode characters is to be viewed as "syntactic sugar", but is, as such, fairly useful.</p>
-</section>
<section>
<title>The interactive shell</title>
<p>The interactive Erlang shell, when started towards a terminal or started using the <c>werl</c> command on windows, can support Unicode input and output.</p>
@@ -147,25 +137,41 @@ en_US.UTF-8</pre>
<p>To investigate what Erlang thinks about the terminal, the <c>io:getopts()</c> call can be used when the shell is started:</p>
<pre>
$ <input>LC_CTYPE=en_US.ISO-8859-1 erl</input>
-Erlang R13A (erts-5.7) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]
+Erlang R13A (erts-5.10) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]
-Eshell V5.7 (abort with ^G)
+Eshell V5.10 (abort with ^G)
1> <input>lists:keyfind(encoding,1,io:getopts()).</input>
{encoding,latin1}
2> <input>q().</input>
ok
$ <input>LC_CTYPE=en_US.UTF-8 erl</input>
-Erlang R13A (erts-5.7) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]
+Erlang R13A (erts-5.10) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]
-Eshell V5.7 (abort with ^G)
+Eshell V5.10 (abort with ^G)
1> <input>lists:keyfind(encoding,1,io:getopts()).</input>
{encoding,unicode}
2></pre>
<p>When (finally?) everything is in order with the locale settings, fonts and the terminal emulator, you probably also have discovered a way to input characters in the script you desire. For testing, the simplest way is to add some keyboard mappings for other languages, usually done with some applet in your desktop environment. In my KDE environment, I start the KDE Control Center (Personal Settings), select "Regional and Accessibility" and then "Keyboard Layout". On Windows XP&reg;, I start Control Panel->Regional and Language Options, select the Language tab and click the Details... button in the square named "Text services and input Languages". Your environment probably provides similar means of changing the keyboard layout. Make sure you have a way to easily switch back and forth between keyboards if you are not used to this, entering commands using a Cyrillic character set is, as an example, not easily done in the Erlang shell.</p>
<p>Now you are set up for some Unicode input and output. The simplest thing to do is of course to enter a string in the shell:</p>
-<image file="ushell1.gif"><icaption>Cyrillic characters in an Erlang shell</icaption></image>
+<pre>
+$ <input>erl</input>
+Eshell V5.10 (abort with ^G)
+1> <input>lists:keyfind(encoding, 1, io:getopts()).</input>
+{encoding,unicode}
+2> <input>"уницоде"</input>
+"уницоде"
+3> <input>io:format("~ts~n", [v(2)]).</input>
+уницоде
+ok
+4> </pre>
<p>While strings can be input as Unicode characters, the language elements are still limited to the ISO-latin-1 character set. Only character constants and strings are allowed to be beyond that range:</p>
-<image file="ushell2.gif"><icaption>Unicode characters in allowed and disallowed context</icaption></image>
+<pre>
+Eshell V5.10 (abort with ^G)
+1> <input>$ξ</input>
+958
+2> <input>уницоде.</input>
+* 1: illegal character
+2> </pre>
</section>
<section>
<title>Unicode file names</title>
@@ -183,7 +189,7 @@ Eshell V5.7 (abort with ^G)
<p>A raw file name is not a list, but a binary. Many non core applications still do not handle file names given as binaries, why such raw names are avoided by default. This means that systems having implemented Unicode file naming through transparent file systems and an UTF-8 convention, do not by default have Unicode file naming turned on. Explicitly turning Unicode file name handling on for these types of systems is considered experimental.</p>
</item>
</taglist>
-<p>The Unicode file naming support was introduced with OTP release R14B01. A VM operating in Unicode file mode can work with files having names in any language or character set (as long as it's supported by the underlying OS and file system). The Unicode character list is used to denote file or directory names and if the file system content is listed, you will also be able to get Unicode lists as return value. The support lies in the kernel and stdlib modules, why most applications (that does not explicitly require the file names to be in the ISO-latin-1 range) will benefit from the Unicode support without change.</p>
+<p>The Unicode file naming support was introduced with OTP release R14B01. A VM operating in Unicode file mode can work with files having names in any language or character set (as long as it's supported by the underlying OS and file system). The Unicode character list is used to denote file or directory names and if the file system content is listed, you will also be able to get Unicode lists as return value. The support lies in the Kernel and STDLIB modules, why most applications (that does not explicitly require the file names to be in the ISO-latin-1 range) will benefit from the Unicode support without change.</p>
<p>On Operating systems with mandatory Unicode file names, this means that you more easily conform to the file names of other (non Erlang) applications, and you can also process file names that, at least on Windows, were completely inaccessible (due to having names that could not be represented in ISO-latin-1). Also you will avoid creating incomprehensible file names on MacOSX as the vfs layer of the OS will accept all your file names as UTF-8 and will not rewrite them.</p>
@@ -197,8 +203,9 @@ Eshell V5.7 (abort with ^G)
<section>
<title>Notes about raw file names and automatic file name conversion</title>
-<p>Raw file names is introduced together with Unicode file name support in erts-5.8.2 (OTP R14B01). The reason &quot;raw file names&quot; is introduced in the system is to be able to consistently represent file names given in different encodings on the same system. Having the VM automatically translate a file name that is not in UTF-8 to a list of Unicode characters might seem practical, but this would open up for both duplicate file names and other inconsistent behavior. Consider a directory containing a file named &quot;bj�rn&quot; in ISO-latin-1, while the Erlang VM is operating in Unicode file name mode (and therefore expecting UTF-8 file naming). The ISO-latin-1 name is not valid UTF-8 and one could be tempted to think that automatic conversion in for example <c>file:list_dir/1</c> is a good idea. But what would happen if we later tried to open the file and have the name as a Unicode list (magically converted from the ISO-latin-1 file name)? The VM will convert the file name given to UTF-8, as this is the encoding expected. Effectively this means trying to open the file named &lt;&lt;&quot;bj�rn&quot;/utf8&gt;&gt;. This file does not exist, and even if it existed it would not be the same file as the one that was listed. We could even create two files named &quot;bj�rn&quot;, one named in the UTF-8 encoding and one not. If <c>file:list_dir/1</c> would automatically convert the ISO-latin-1 file name to a list, we would get two identical file names as the result. To avoid this, we need to differentiate between file names being properly encoded according to the Unicode file naming convention (i.e. UTF-8) and file names being invalid under the encoding. This is done by representing invalid encoding as &quot;raw&quot; file names, i.e. as binaries.</p>
-<p>The core system of Erlang (kernel and stdlib) accepts raw file names except for loadable drivers and executables invoked using <c>open_port({spawn, ...} ...)</c>. <c>open_port({spawn_executable, ...} ...)</c> however does accept them. As mentioned earlier, the arguments given in the option list to <c>open_port({spawn_executable, ...} ...)</c> undergo the same conversion as the file names, meaning that the executable will be provided with arguments in UTF-8 as well. This translation is avoided consistently with how the file names are treated, by giving the argument as a binary.</p>
+
+<p>Raw file names is introduced together with Unicode file name support in erts-5.8.2 (OTP R14B01). The reason &quot;raw file names&quot; is introduced in the system is to be able to consistently represent file names given in different encodings on the same system. Having the VM automatically translate a file name that is not in UTF-8 to a list of Unicode characters might seem practical, but this would open up for both duplicate file names and other inconsistent behavior. Consider a directory containing a file named &quot;björn&quot; in ISO-latin-1, while the Erlang VM is operating in Unicode file name mode (and therefore expecting UTF-8 file naming). The ISO-latin-1 name is not valid UTF-8 and one could be tempted to think that automatic conversion in for example <c>file:list_dir/1</c> is a good idea. But what would happen if we later tried to open the file and have the name as a Unicode list (magically converted from the ISO-latin-1 file name)? The VM will convert the file name given to UTF-8, as this is the encoding expected. Effectively this means trying to open the file named &lt;&lt;&quot;björn&quot;/utf8&gt;&gt;. This file does not exist, and even if it existed it would not be the same file as the one that was listed. We could even create two files named &quot;björn&quot;, one named in the UTF-8 encoding and one not. If <c>file:list_dir/1</c> would automatically convert the ISO-latin-1 file name to a list, we would get two identical file names as the result. To avoid this, we need to differentiate between file names being properly encoded according to the Unicode file naming convention (i.e. UTF-8) and file names being invalid under the encoding. This is done by representing invalid encoding as &quot;raw&quot; file names, i.e. as binaries.</p>
+<p>The core system of Erlang (Kernel and STDLIB) accepts raw file names except for loadable drivers and executables invoked using <c>open_port({spawn, ...} ...)</c>. <c>open_port({spawn_executable, ...} ...)</c> however does accept them. As mentioned earlier, the arguments given in the option list to <c>open_port({spawn_executable, ...} ...)</c> undergo the same conversion as the file names, meaning that the executable will be provided with arguments in UTF-8 as well. This translation is avoided consistently with how the file names are treated, by giving the argument as a binary.</p>
<p>To force Unicode file name translation mode on systems where this is not the default is considered experimental in OTP R14B01 due to the raw file names possibly being a new experience to the programmer and that the non core applications of OTP are not tested for compliance with raw file names yet. Unicode file name translation is expected to be default in future releases.</p>
<p>If working with raw file names, one can still conform to the encoding convention of the Erlang VM by using the <c>file:native_name_encoding/0</c> function, which returns either the atom <c>latin1</c> or the atom <c>utf8</c> depending on the file name translation mode. On Linux, a VM started without explicitly stating the file name translation mode will default to <c>latin1</c> as the native file name encoding, why file names on the disk encoded as UTF-8 will be returned as a list of the names interpreted as ISO-latin-1. The &quot;UTF-8 list&quot; is not a practical type for displaying or operating on in Erlang, but it is backward compatible and usable in all functions requiring a file name. On Windows and MacOSX, the default behavior is that of file name translation, why the <c>file:native_name_encoding/0</c> by default returns <c>utf8</c> on those systems (the fact that Windows actually does not use UTF-8 on the file system level can safely be ignored by the Erlang programmer). The default behavior can be changed using the <c>+fnu</c> or <c>+fnl</c> options to the VM, see the <c>erl</c> command manual page.</p>
<p>Even if you are operating without Unicode file naming translation automatically done by the VM, you can access and create files with names in UTF-8 encoding by using raw file names encoded as UTF-8. Enforcing the UTF-8 encoding regardless of the mode the Erlang VM is started in might, in some circumstances be a good idea, as the convention of using UTF-8 file names is spreading.</p>
@@ -206,7 +213,7 @@ Eshell V5.7 (abort with ^G)
<section>
<title>Notes about MacOSX</title>
<p>MacOSXs vfs layer enforces UTF-8 file names in a quite aggressive way. Older versions did this by simply refusing to create non UTF-8 conforming file names, while newer versions replace offending bytes with the sequence &quot;%HH&quot;, where HH is the original character in hexadecimal notation. As Unicode translation is enabled by default on MacOSX, the only way to come up against this is to either start the VM with the <c>+fnl</c> flag or to use a raw file name in <c>latin1</c> encoding. In that case, the file can not be opened with the same name as the one used to create this. The problem is by design in newer versions of MacOSX.</p>
-<p>MacOSX also reorganizes the names of files so that the representation of accents etc is denormalized, i.e. the character <c>�</c> is represented as the codepoints [111,776], where 111 is the character <c>o</c> and 776 is a special accent character. This type of denormalized Unicode is otherwise very seldom used and Erlang normalizes those file names on retrieval, so that denormalized file names is not passed up to the Erlang application. In Erlang the file name &quot;bj�rn&quot; is retrieved as [98,106,246,114,110], not as [98,106,117,776,114,110], even though the file system might think differently.</p>
+<p>MacOSX also reorganizes the names of files so that the representation of accents etc is denormalized, i.e. the character <c>ö</c> is represented as the codepoints [111,776], where 111 is the character <c>o</c> and 776 is a special accent character. This type of denormalized Unicode is otherwise very seldom used and Erlang normalizes those file names on retrieval, so that denormalized file names is not passed up to the Erlang application. In Erlang the file name &quot;björn&quot; is retrieved as [98,106,246,114,110], not as [98,106,117,776,114,110], even though the file system might think differently.</p>
</section>
</section>
<section>
@@ -276,17 +283,23 @@ open_bom_file_for_writing(File,Encoding) -&gt;
<title>Formatted input and output</title>
<p>When reading and writing to Unicode-aware entities, like the User or a file opened for Unicode translation, you will probably want to format text strings using the functions in <seealso marker="stdlib:io">io</seealso> or <seealso marker="stdlib:io_lib">io_lib</seealso>. For backward compatibility reasons, these functions don't accept just any list as a string, but require e special "translation modifier" when working with Unicode texts. The modifier is "t". When applied to the "s" control character in a formatting string, it accepts all Unicode codepoints and expect binaries to be in UTF-8:</p>
<pre>
-1> <input>io:format("~ts~n",[&lt;&lt;"���"/utf8&gt;&gt;]).</input>
-���
-ok
-2> <input>io:format("~s~n",[&lt;&lt;"���"/utf8&gt;&gt;]).</input>
+1> <input>io:format("~ts~n",[&lt;&lt;"åäö"/utf8&gt;&gt;]).</input>
åäö
+ok
+2> <input>io:format("~s~n",[&lt;&lt;"åäö"/utf8&gt;&gt;]).</input>
+åäö
ok</pre>
<p>Obviously the second <c>io:format</c> gives undesired output because the UTF-8 binary is not in latin1. Because ISO-latin-1 is still the defined character set of Erlang, the non prefixed "s" control character expects ISO-latin-1 in binaries as well as lists.</p>
<p>As long as the data is always lists, the "t" modifier can be used for any string, but when binary data is involved, care must be taken to make the tight choice of formatting characters.</p>
<p>The function <c>format</c> in <c>io_lib</c> behaves similarly. This function is defined to return a deep list of characters and the output could easily be converted to binary data for outputting on a device of any kind by a simple <c>erlang:list_to_binary</c>. When the translation modifier is used, the list can however contain characters that cannot be stored in one byte. The call to <c>erlang:list_to_binary</c> will in that case fail. However, if the io_server you want to communicate with is Unicode-aware, the list returned can still be used directly:</p>
-<image file="ushell3.gif"><icaption>io_lib:format with Unicode translation</icaption></image>
-<p>The Unicode string is returned as a Unicode list, why the return value of <c>io_lib:format</c> no longer qualifies as a regular Erlang string (the function <seealso marker="stdlib:io_lib#deep_char_list/1">io_lib:deep_char_list</seealso> will, as an example, return <c>false</c>). The Unicode list is however valid input to the <seealso marker="stdlib:io#put_chars/2">io:put_chars</seealso> function, so data can be output on any Unicode capable device anyway. If the device is a terminal, characters will be output in the \x{H ...} format if encoding is <c>latin1</c> otherwise in UTF-8 (for the non-interactive terminal - "oldshell" or "noshell") or whatever is suitable to show the character properly (for an interactive terminal - the regular shell). The bottom line is that you can always send Unicode data to the <c>standard_io</c> device. Files will however only accept Unicode codepoints beyond ISO-latin-1 if <c>encoding</c> is set to something else than <c>latin1</c>.</p>
+<pre>
+Eshell V5.10 (abort with ^G)
+1> <input>io_lib:format("~ts~n", ["θνιψοδε"]).</input>
+["θνιψοδε","\n"]
+2> <input>io:put_chars(io_lib:format("~ts~n", ["θνιψοδε"])).</input>
+θνιψοδε
+ok</pre>
+<p>The Unicode string is returned as a Unicode list, which is recognized as such since the Erlang shell uses the Unicode encoding. The Unicode list is valid input to the <seealso marker="stdlib:io#put_chars/2">io:put_chars</seealso> function, so data can be output on any Unicode capable device. If the device is a terminal, characters will be output in the \x{H ...} format if encoding is <c>latin1</c> otherwise in UTF-8 (for the non-interactive terminal - "oldshell" or "noshell") or whatever is suitable to show the character properly (for an interactive terminal - the regular shell). The bottom line is that you can always send Unicode data to the <c>standard_io</c> device. Files will however only accept Unicode codepoints beyond ISO-latin-1 if <c>encoding</c> is set to something else than <c>latin1</c>.</p>
</section>
<section>
<title>Heuristic identification of UTF-8</title>
diff --git a/lib/stdlib/doc/src/ushell1.gif b/lib/stdlib/doc/src/ushell1.gif
deleted file mode 100644
index 7c46464fd2..0000000000
--- a/lib/stdlib/doc/src/ushell1.gif
+++ /dev/null
Binary files differ
diff --git a/lib/stdlib/doc/src/ushell1.ps b/lib/stdlib/doc/src/ushell1.ps
deleted file mode 100644
index 95bfebf194..0000000000
--- a/lib/stdlib/doc/src/ushell1.ps
+++ /dev/null
@@ -1,1196 +0,0 @@
-%!PS-Adobe-3.0
-%%Creator: GIMP PostScript file plugin V 1.17 by Peter Kirchgessner
-%%Title: ushell1.ps
-%%CreationDate: Mon Mar 16 09:53:27 2009
-%%DocumentData: Clean7Bit
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-"lqsOs3,K^=UArcs(&Y>q504DJcC<$JcC<$PlH7~>
-"lqsOs3,K^=UArcs(&Y>q504DJcC<$JcC<$PlH7~>
-"lqsOs3,K^=UArcs(&Y>q504DJcC<$JcC<$PlH7~>
-"lqsOs)#">rs68Fs(&X1Lio;?s+13$s+136s*t~>
-"lqsOs)#">rs68Fs(&X1Lio;?s+13$s+136s*t~>
-"lqsOs)#">rs68Fs(&X1Lio;?s+13$s+136s*t~>
-"lqsOs)#">rs$,Ds("oaR=YBhs+13$s,m>3~>
-"lqsOs)#">rs$,Ds("oaR=YBhs+13$s,m>3~>
-"lqsOs)#">rs$,Ds("oaR=YBhs+13$s,m>3~>
-"lqsOs)#">rs$,Ds($Od?%N$,s+13$s,m>3~>
-"lqsOs)#">rs$,Ds($Od?%N$,s+13$s,m>3~>
-"lqsOs)#">rs$,Ds($Od?%N$,s+13$s,m>3~>
-"lqsOs)#">rs68Fs(&Xf^c$1`s+13$s+136s*t~>
-"lqsOs)#">rs68Fs(&Xf^c$1`s+13$s+136s*t~>
-"lqsOs)#">rs68Fs(&Xf^c$1`s+13$s+136s*t~>
-"lqsOs6s7l*!oL2s(8hArT1&)JcC<$JcC<$PlH7~>
-"lqsOs6s7l*!oL2s(8hArT1&)JcC<$JcC<$PlH7~>
-"lqsOs6s7l*!oL2s(8hArT1&)JcC<$JcC<$PlH7~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-!ouXLJcC<$JcC<$K`?Q~>
-"QVjNs/l3<"K)5!R-9,$JcC<$JcCi3J,~>
-"QVjNs/l3<"K)5!R-9,$JcC<$JcCi3J,~>
-"QVjNs/l3<"K)5!R-9,$JcC<$JcCi3J,~>
-"QVjNs3LYE#(Bt[s2&7>JcC<$JcC<$OoKq~>
-"QVjNs3LYE#(Bt[s2&7>JcC<$JcC<$OoKq~>
-"QVjNs3LYE#(Bt[s2&7>JcC<$JcC<$OoKq~>
-!ouXLr;QiX?JPP[!ROMks+13$s+134s*t~>
-!ouXLr;QiX?JPP[!ROMks+13$s+134s*t~>
-!ouXLr;QiX?JPP[!ROMks+13$s+134s*t~>
-!ouXLrVlrn3U6PB!S9bks+13$s+135s*t~>
-!ouXLrVlrn3U6PB!S9bks+13$s+135s*t~>
-!ouXLrVlrn3U6PB!S9bks+13$s+135s*t~>
-%%EndData
-showpage
-%%Trailer
-end
-%%EOF
diff --git a/lib/stdlib/src/Makefile b/lib/stdlib/src/Makefile
index 14304824d3..575a5cbe4a 100644
--- a/lib/stdlib/src/Makefile
+++ b/lib/stdlib/src/Makefile
@@ -171,6 +171,7 @@ primary_bootstrap_compiler: \
$(BOOTSTRAP_COMPILER)/ebin/erl_scan.beam \
$(BOOTSTRAP_COMPILER)/ebin/erl_parse.beam \
$(BOOTSTRAP_COMPILER)/ebin/erl_lint.beam \
+ $(BOOTSTRAP_COMPILER)/ebin/io.beam \
$(BOOTSTRAP_COMPILER)/ebin/otp_internal.beam
$(BOOTSTRAP_COMPILER)/ebin/erl_parse.beam: erl_parse.yrl
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl
index 2c8d84a9e1..a0f7660ecf 100644
--- a/lib/stdlib/src/epp.erl
+++ b/lib/stdlib/src/epp.erl
@@ -23,13 +23,18 @@
-export([open/2,open/3,open/5,close/1,format_error/1]).
-export([scan_erl_form/1,parse_erl_form/1,macro_defs/1]).
-export([parse_file/1, parse_file/3]).
+-export([default_encoding/0, encoding_to_string/1,
+ read_encoding/1, read_encoding/2, set_encoding/1]).
-export([interpret_file_attribute/1]).
-export([normalize_typed_record_fields/1,restore_typed_record_fields/1]).
%%------------------------------------------------------------------------
+-export_type([source_encoding/0]).
+
-type macros() :: [{atom(), term()}].
-type epp_handle() :: pid().
+-type source_encoding() :: latin1 | utf8.
%% Epp state record.
-record(epp, {file, %Current file
@@ -213,6 +218,173 @@ parse_file(Epp) ->
[{eof,Location}]
end.
+-define(DEFAULT_ENCODING, latin1).
+
+-spec default_encoding() -> source_encoding().
+
+default_encoding() ->
+ ?DEFAULT_ENCODING.
+
+-spec encoding_to_string(Encoding) -> string() when
+ Encoding :: source_encoding().
+
+encoding_to_string(latin1) -> "coding: latin-1";
+encoding_to_string(utf8) -> "coding: utf-8".
+
+-spec read_encoding(FileName) -> source_encoding() | none when
+ FileName :: file:name().
+
+read_encoding(Name) ->
+ read_encoding(Name, []).
+
+-spec read_encoding(FileName, Options) -> source_encoding() | none when
+ FileName :: file:name(),
+ Options :: [Option],
+ Option :: {in_comment_only, boolean()}.
+
+read_encoding(Name, Options) ->
+ InComment = proplists:get_value(in_comment_only, Options, true),
+ case file:open(Name, [read]) of
+ {ok,File} ->
+ try read_encoding_from_file(File, InComment)
+ after ok = file:close(File)
+ end;
+ _Error ->
+ none
+ end.
+
+-spec set_encoding(File) -> source_encoding() | none when
+ File :: io:device(). % pid(); raw files don't work
+
+set_encoding(File) ->
+ Encoding = read_encoding_from_file(File, true),
+ Enc = case Encoding of
+ none -> default_encoding();
+ Encoding -> Encoding
+ end,
+ ok = io:setopts(File, [{encoding, Enc}]),
+ Encoding.
+
+-spec read_encoding_from_file(File, InComment) -> source_encoding() | none when
+ File :: io:device(),
+ InComment :: boolean().
+
+-define(ENC_CHUNK, 32).
+-define(N_ENC_CHUNK, 16). % a total of 512 bytes
+
+read_encoding_from_file(File, InComment) ->
+ {ok, Pos0} = file:position(File, cur),
+ Opts = io:getopts(File),
+ Encoding0 = lists:keyfind(encoding, 1, Opts),
+ Binary0 = lists:keyfind(binary, 1, Opts),
+ ok = io:setopts(File, [binary, {encoding, latin1}]),
+ try
+ {B, Fun} = (reader(File, 0))(),
+ com_nl(B, Fun, 0, InComment)
+ catch
+ throw:no ->
+ none
+ after
+ {ok, Pos0} = file:position(File, Pos0),
+ ok = io:setopts(File, [Binary0, Encoding0])
+ end.
+
+reader(Fd, N) ->
+ fun() when N =:= ?N_ENC_CHUNK ->
+ throw(no);
+ () ->
+ case file:read(Fd, ?ENC_CHUNK) of
+ eof ->
+ {<<>>, reader(Fd, N+1)};
+ {ok, Bin} ->
+ {Bin, reader(Fd, N+1)};
+ {error, _} ->
+ throw(no) % ignore errors
+ end
+ end.
+
+com_nl(_, _, 2, _) ->
+ throw(no);
+com_nl(B, Fun, N, false=Com) ->
+ com_c(B, Fun, N, Com);
+com_nl(B, Fun, N, true=Com) ->
+ com(B, Fun, N, Com).
+
+com(<<"\n",B/binary>>, Fun, N, Com) ->
+ com_nl(B, Fun, N+1, Com);
+com(<<"%", B/binary>>, Fun, N, Com) ->
+ com_c(B, Fun, N, Com);
+com(<<_:1/unit:8,B/binary>>, Fun, N, Com) ->
+ com(B, Fun, N, Com);
+com(<<>>, Fun, N, Com) ->
+ {B, Fun1} = Fun(),
+ com(B, Fun1, N, Com).
+
+com_c(<<"c",B/binary>>, Fun, N, Com) ->
+ com_oding(B, Fun, N, Com);
+com_c(<<"\n",B/binary>>, Fun, N, Com) ->
+ com_nl(B, Fun, N+1, Com);
+com_c(<<_:1/unit:8,B/binary>>, Fun, N, Com) ->
+ com_c(B, Fun, N, Com);
+com_c(<<>>, Fun, N, Com) ->
+ {B, Fun1} = Fun(),
+ com_c(B, Fun1, N, Com).
+
+com_oding(<<"oding",B/binary>>, Fun, N, Com) ->
+ com_sep(B, Fun, N, Com);
+com_oding(B, Fun, N, Com) when byte_size(B) >= length("oding") ->
+ com_c(B, Fun, N, Com);
+com_oding(B, Fun, N, Com) ->
+ {B1, Fun1} = Fun(),
+ com_oding(list_to_binary([B, B1]), Fun1, N, Com).
+
+com_sep(<<":",B/binary>>, Fun, N, Com) ->
+ com_space(B, Fun, N, Com);
+com_sep(<<"=",B/binary>>, Fun, N, Com) ->
+ com_space(B, Fun, N, Com);
+com_sep(<<"\s",B/binary>>, Fun, N, Com) ->
+ com_sep(B, Fun, N, Com);
+com_sep(<<>>, Fun, N, Com) ->
+ {B, Fun1} = Fun(),
+ com_sep(B, Fun1, N, Com);
+com_sep(B, Fun, N, Com) ->
+ com_c(B, Fun, N, Com).
+
+com_space(<<"\s",B/binary>>, Fun, N, Com) ->
+ com_space(B, Fun, N, Com);
+com_space(<<>>, Fun, N, Com) ->
+ {B, Fun1} = Fun(),
+ com_space(B, Fun1, N, Com);
+com_space(B, Fun, N, _Com) ->
+ com_enc(B, Fun, N, [], []).
+
+com_enc(<<C:1/unit:8,B/binary>>, Fun, N, L, Ps) when C >= $a, C =< $z;
+ C >= $A, C =< $Z;
+ C >= $0, C =< $9 ->
+ com_enc(B, Fun, N, [C | L], Ps);
+com_enc(<<>>, Fun, N, L, Ps) ->
+ case Fun() of
+ {<<>>, _} ->
+ com_enc_end([L | Ps]);
+ {B, Fun1} ->
+ com_enc(B, Fun1, N, L, Ps)
+ end;
+com_enc(<<"-",B/binary>>, Fun, N, L, Ps) ->
+ com_enc(B, Fun, N, [], [L | Ps]);
+com_enc(_B, _Fun, _N, L, Ps) ->
+ com_enc_end([L | Ps]).
+
+com_enc_end(Ps0) ->
+ Ps = lists:reverse([lists:reverse(string:to_lower(P)) || P <- Ps0]),
+ com_encoding(Ps).
+
+com_encoding(["latin","1"|_]) ->
+ latin1;
+com_encoding(["utf","8"|_]) ->
+ utf8;
+com_encoding(_) ->
+ throw(no). % Don't try any further
+
normalize_typed_record_fields([]) ->
{typed, []};
normalize_typed_record_fields(Fields) ->
@@ -266,14 +438,17 @@ init_server(Pid, Name, File, AtLocation, Path, Pdm, Pre) ->
Ms0 = predef_macros(Name),
case user_predef(Pdm, Ms0) of
{ok,Ms1} ->
- epp_reply(Pid, {ok,self()}),
- %% ensure directory of current source file is first in path
+ _ = set_encoding(File),
+ epp_reply(Pid, {ok,self()}),
+ %% ensure directory of current source file is
+ %% first in path
Path1 = [filename:dirname(Name) | Path],
- St = #epp{file=File, location=AtLocation, delta=0, name=Name,
- name2=Name, path=Path1, macs=Ms1, pre_opened = Pre},
- From = wait_request(St),
- enter_file_reply(From, Name, AtLocation, AtLocation),
- wait_req_scan(St);
+ St = #epp{file=File, location=AtLocation, delta=0,
+ name=Name, name2=Name, path=Path1, macs=Ms1,
+ pre_opened = Pre},
+ From = wait_request(St),
+ enter_file_reply(From, Name, AtLocation, AtLocation),
+ wait_req_scan(St);
{error,E} ->
epp_reply(Pid, {error,E})
end.
@@ -385,19 +560,20 @@ enter_file(NewName, Inc, From, St) ->
%% enter_file2(File, FullName, From, EppState, AtLocation) -> EppState.
%% Set epp to use this file and "enter" it.
-enter_file2(NewF, Pname, From, St, AtLocation) ->
+enter_file2(NewF, Pname, From, St0, AtLocation) ->
Loc = start_loc(AtLocation),
enter_file_reply(From, Pname, Loc, AtLocation),
- Ms = dict:store({atom,'FILE'}, {none,[{string,Loc,Pname}]}, St#epp.macs),
+ Ms = dict:store({atom,'FILE'}, {none,[{string,Loc,Pname}]}, St0#epp.macs),
%% update the head of the include path to be the directory of the new
%% source file, so that an included file can always include other files
%% relative to its current location (this is also how C does it); note
%% that the directory of the parent source file (the previous head of
%% the path) must be dropped, otherwise the path used within the current
%% file will depend on the order of file inclusions in the parent files
- Path = [filename:dirname(Pname) | tl(St#epp.path)],
+ Path = [filename:dirname(Pname) | tl(St0#epp.path)],
+ _ = set_encoding(NewF),
#epp{file=NewF,location=Loc,name=Pname,delta=0,
- sstk=[St|St#epp.sstk],path=Path,macs=Ms}.
+ sstk=[St0|St0#epp.sstk],path=Path,macs=Ms}.
enter_file_reply(From, Name, Location, AtLocation) ->
Attr = loc_attr(AtLocation),
@@ -456,7 +632,7 @@ leave_file(From, St) ->
%% scan_toks(Tokens, From, EppState)
scan_toks(From, St) ->
- case io:scan_erl_form(St#epp.file, '', St#epp.location) of
+ case io:scan_erl_form(St#epp.file, '', St#epp.location, [unicode]) of
{ok,Toks,Cl} ->
scan_toks(Toks, From, St#epp{location=Cl});
{error,E,Cl} ->
@@ -830,7 +1006,7 @@ new_location(Ln, {Le,_}, {Lf,_}) ->
%% nested conditionals and repeated 'else's.
skip_toks(From, St, [I|Sis]) ->
- case io:scan_erl_form(St#epp.file, '', St#epp.location) of
+ case io:scan_erl_form(St#epp.file, '', St#epp.location, [unicode]) of
{ok,[{'-',_Lh},{atom,_Li,ifdef}|_Toks],Cl} ->
skip_toks(From, St#epp{location=Cl}, [ifdef,I|Sis]);
{ok,[{'-',_Lh},{atom,_Li,ifndef}|_Toks],Cl} ->
@@ -1094,6 +1270,7 @@ expand_arg([], Ts, L, Rest, Bs) ->
%%% tokenized would yield the token list Ts.
%% erl_scan:token_info(T, text) is not backward compatible with this.
+%% Note that escaped characters will be replaced by themselves.
token_src({dot, _}) ->
".";
token_src({X, _}) when is_atom(X) ->
@@ -1101,16 +1278,16 @@ token_src({X, _}) when is_atom(X) ->
token_src({var, _, X}) ->
atom_to_list(X);
token_src({char,_,C}) ->
- io_lib:write_char(C);
+ io_lib:write_unicode_char(C);
token_src({string, _, X}) ->
- lists:flatten(io_lib:format("~p", [X]));
+ io_lib:write_unicode_string(X);
token_src({_, _, X}) ->
- lists:flatten(io_lib:format("~w", [X])).
+ io_lib:format("~w", [X]).
stringify1([]) ->
[];
stringify1([T | Tokens]) ->
- [io_lib:format(" ~s", [token_src(T)]) | stringify1(Tokens)].
+ [io_lib:format(" ~ts", [token_src(T)]) | stringify1(Tokens)].
stringify(Ts, L) ->
[$\s | S] = lists:flatten(stringify1(Ts)),
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 1e5f962375..0a442d950f 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -3618,6 +3618,10 @@ extract_sequence(4, [$t, $c | Fmt], Need) ->
extract_sequence(5, [$c|Fmt], Need);
extract_sequence(4, [$t, $s | Fmt], Need) ->
extract_sequence(5, [$s|Fmt], Need);
+extract_sequence(4, [$t, $p | Fmt], Need) ->
+ extract_sequence(5, [$p|Fmt], Need);
+extract_sequence(4, [$t, $P | Fmt], Need) ->
+ extract_sequence(5, [$P|Fmt], Need);
extract_sequence(4, [$t, C | _Fmt], _Need) ->
{error,"invalid control ~t" ++ [C]};
extract_sequence(4, Fmt, Need) ->
diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index 928c10f7f2..27a2ba80eb 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -2,7 +2,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -923,73 +923,77 @@ normalise_list([]) ->
-spec abstract(Data) -> AbsTerm when
Data :: term(),
AbsTerm :: abstract_expr().
-abstract(T) when is_integer(T) -> {integer,0,T};
-abstract(T) when is_float(T) -> {float,0,T};
-abstract(T) when is_atom(T) -> {atom,0,T};
-abstract([]) -> {nil,0};
-abstract(B) when is_bitstring(B) ->
- {bin, 0, [abstract_byte(Byte, 0) || Byte <- bitstring_to_list(B)]};
-abstract([C|T]) when is_integer(C), 0 =< C, C < 256 ->
- abstract_string(T, [C]);
-abstract([H|T]) ->
- {cons,0,abstract(H),abstract(T)};
-abstract(Tuple) when is_tuple(Tuple) ->
- {tuple,0,abstract_list(tuple_to_list(Tuple))}.
-
-abstract_string([C|T], String) when is_integer(C), 0 =< C, C < 256 ->
- abstract_string(T, [C|String]);
-abstract_string([], String) ->
- {string, 0, lists:reverse(String)};
-abstract_string(T, String) ->
- not_string(String, abstract(T)).
-
-not_string([C|T], Result) ->
- not_string(T, {cons, 0, {integer, 0, C}, Result});
-not_string([], Result) ->
+abstract(T) ->
+ abstract(T, 0, epp:default_encoding()).
+
+%%% abstract/2 takes line and encoding options
+-spec abstract(Data, Options) -> AbsTerm when
+ Data :: term(),
+ Options :: Line | [Option],
+ Option :: {line, Line} | {encoding, Encoding},
+ Encoding :: latin1 | unicode | utf8,
+ Line :: erl_scan:line(),
+ AbsTerm :: abstract_expr().
+
+abstract(T, Line) when is_integer(Line) ->
+ abstract(T, Line, epp:default_encoding());
+abstract(T, Options) when is_list(Options) ->
+ Line = proplists:get_value(line, Options, 0),
+ Encoding = proplists:get_value(encoding, Options,epp:default_encoding()),
+ abstract(T, Line, Encoding).
+
+-define(UNICODE(C),
+ (C >= 0 andalso C < 16#D800 orelse
+ C > 16#DFFF andalso C < 16#FFFE orelse
+ C > 16#FFFF andalso C =< 16#10FFFF)).
+
+abstract(T, L, _E) when is_integer(T) -> {integer,L,T};
+abstract(T, L, _E) when is_float(T) -> {float,L,T};
+abstract(T, L, _E) when is_atom(T) -> {atom,L,T};
+abstract([], L, _E) -> {nil,L};
+abstract(B, L, _E) when is_bitstring(B) ->
+ {bin, L, [abstract_byte(Byte, L) || Byte <- bitstring_to_list(B)]};
+abstract([C|T], L, unicode=E) when ?UNICODE(C) ->
+ abstract_unicode_string(T, [C], L, E);
+abstract([C|T], L, utf8=E) when ?UNICODE(C) ->
+ abstract_unicode_string(T, [C], L, E);
+abstract([C|T], L, latin1=E) when is_integer(C), 0 =< C, C < 256 ->
+ abstract_string(T, [C], L, E);
+abstract([H|T], L, E) ->
+ {cons,L,abstract(H, L, E),abstract(T, L, E)};
+abstract(Tuple, L, E) when is_tuple(Tuple) ->
+ {tuple,L,abstract_list(tuple_to_list(Tuple), L, E)}.
+
+abstract_string([C|T], String, L, E) when is_integer(C), 0 =< C, C < 256 ->
+ abstract_string(T, [C|String], L, E);
+abstract_string([], String, L, _E) ->
+ {string, L, lists:reverse(String)};
+abstract_string(T, String, L, E) ->
+ not_string(String, abstract(T, L, E), L, E).
+
+abstract_unicode_string([C|T], String, L, E) when ?UNICODE(C) ->
+ abstract_unicode_string(T, [C|String], L, E);
+abstract_unicode_string([], String, L, _E) ->
+ {string, L, lists:reverse(String)};
+abstract_unicode_string(T, String, L, E) ->
+ not_string(String, abstract(T, L, E), L, E).
+
+not_string([C|T], Result, L, E) ->
+ not_string(T, {cons, L, {integer, L, C}, Result}, L, E);
+not_string([], Result, _L, _E) ->
Result.
-abstract_list([H|T]) ->
- [abstract(H)|abstract_list(T)];
-abstract_list([]) ->
+abstract_list([H|T], L, E) ->
+ [abstract(H, L, E)|abstract_list(T, L, E)];
+abstract_list([], _L, _E) ->
[].
-abstract_byte(Byte, Line) when is_integer(Byte) ->
- {bin_element, Line, {integer, Line, Byte}, default, default};
-abstract_byte(Bits, Line) ->
+abstract_byte(Byte, L) when is_integer(Byte) ->
+ {bin_element, L, {integer, L, Byte}, default, default};
+abstract_byte(Bits, L) ->
Sz = bit_size(Bits),
<<Val:Sz>> = Bits,
- {bin_element, Line, {integer, Line, Val}, {integer, Line, Sz}, default}.
-
-%%% abstract/2 keeps the line number
-abstract(T, Line) when is_integer(T) -> {integer,Line,T};
-abstract(T, Line) when is_float(T) -> {float,Line,T};
-abstract(T, Line) when is_atom(T) -> {atom,Line,T};
-abstract([], Line) -> {nil,Line};
-abstract(B, Line) when is_bitstring(B) ->
- {bin, Line, [abstract_byte(Byte, Line) || Byte <- bitstring_to_list(B)]};
-abstract([C|T], Line) when is_integer(C), 0 =< C, C < 256 ->
- abstract_string(T, [C], Line);
-abstract([H|T], Line) ->
- {cons,Line,abstract(H, Line),abstract(T, Line)};
-abstract(Tuple, Line) when is_tuple(Tuple) ->
- {tuple,Line,abstract_list(tuple_to_list(Tuple), Line)}.
-
-abstract_string([C|T], String, Line) when is_integer(C), 0 =< C, C < 256 ->
- abstract_string(T, [C|String], Line);
-abstract_string([], String, Line) ->
- {string, Line, lists:reverse(String)};
-abstract_string(T, String, Line) ->
- not_string(String, abstract(T, Line), Line).
-
-not_string([C|T], Result, Line) ->
- not_string(T, {cons, Line, {integer, Line, C}, Result}, Line);
-not_string([], Result, _Line) ->
- Result.
-
-abstract_list([H|T], Line) ->
- [abstract(H, Line)|abstract_list(T, Line)];
-abstract_list([], _Line) ->
- [].
+ {bin_element, L, {integer, L, Val}, {integer, L, Sz}, default}.
%% Generate a list of tokens representing the abstract term.
diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl
index 6b5aa951cf..0383ce6839 100644
--- a/lib/stdlib/src/erl_pp.erl
+++ b/lib/stdlib/src/erl_pp.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -26,7 +26,7 @@
guard/1,guard/2,exprs/1,exprs/2,exprs/3,expr/1,expr/2,expr/3,expr/4]).
-import(lists, [append/1,foldr/3,mapfoldl/3,reverse/1,reverse/2]).
--import(io_lib, [write/1,format/2,write_char/1,write_string/1]).
+-import(io_lib, [write/1,format/2]).
-import(erl_parse, [inop_prec/1,preop_prec/1,func_prec/0,max_prec/0]).
-define(MAXLINE, 72).
@@ -36,7 +36,15 @@
CurrentIndentation :: integer(),
CurrentPrecedence :: non_neg_integer(),
HookFunction :: hook_function()) ->
- io_lib:chars())).
+ io_lib:chars())).
+
+-type(option() :: {hook, hook_function()}
+ | {encoding, latin1 | unicode | utf8}).
+-type(options() :: hook_function() | [option()]).
+
+-record(pp, {string_fun, char_fun}).
+
+-record(options, {hook, encoding, opts}).
%%%
%%% Exported functions
@@ -48,12 +56,12 @@
form(Thing) ->
form(Thing, none).
--spec(form(Form, HookFunction) -> io_lib:chars() when
+-spec(form(Form, Options) -> io_lib:chars() when
Form :: erl_parse:abstract_form(),
- HookFunction :: hook_function()).
+ Options :: options()).
-form(Thing, Hook) ->
- frmt(lform(Thing, Hook)).
+form(Thing, Options) ->
+ frmt(lform(Thing, options(Options)), state(Options)).
-spec(attribute(Attribute) -> io_lib:chars() when
Attribute :: erl_parse:abstract_form()).
@@ -61,12 +69,12 @@ form(Thing, Hook) ->
attribute(Thing) ->
attribute(Thing, none).
--spec(attribute(Attribute, HookFunction) -> io_lib:chars() when
+-spec(attribute(Attribute, Options) -> io_lib:chars() when
Attribute :: erl_parse:abstract_form(),
- HookFunction :: hook_function()).
+ Options :: options()).
-attribute(Thing, Hook) ->
- frmt(lattribute(Thing, Hook)).
+attribute(Thing, Options) ->
+ frmt(lattribute(Thing, options(Options)), state(Options)).
-spec(function(Function) -> io_lib:chars() when
Function :: erl_parse:abstract_form()).
@@ -74,18 +82,18 @@ attribute(Thing, Hook) ->
function(F) ->
function(F, none).
--spec(function(Function, HookFunction) -> io_lib:chars() when
+-spec(function(Function, Options) -> io_lib:chars() when
Function :: erl_parse:abstract_form(),
- HookFunction :: hook_function()).
+ Options :: options()).
-function(F, Hook) ->
- frmt(lfunction(F, Hook)).
+function(F, Options) ->
+ frmt(lfunction(F, options(Options)), state(Options)).
rule(R) ->
rule(R, none).
-rule(R, Hook) ->
- frmt(lrule(R, Hook)).
+rule(R, Options) ->
+ frmt(lrule(R, options(Options)), state(Options)).
-spec(guard(Guard) -> io_lib:chars() when
Guard :: [erl_parse:abstract_expr()]).
@@ -93,12 +101,12 @@ rule(R, Hook) ->
guard(Gs) ->
guard(Gs, none).
--spec(guard(Guard, HookFunction) -> io_lib:chars() when
+-spec(guard(Guard, Options) -> io_lib:chars() when
Guard :: [erl_parse:abstract_expr()],
- HookFunction :: hook_function()).
+ Options :: options()).
-guard(Gs, Hook) ->
- frmt(lguard(Gs, Hook)).
+guard(Gs, Options) ->
+ frmt(lguard(Gs, options(Options)), state(Options)).
-spec(exprs(Expressions) -> io_lib:chars() when
Expressions :: [erl_parse:abstract_expr()]).
@@ -106,99 +114,129 @@ guard(Gs, Hook) ->
exprs(Es) ->
exprs(Es, 0, none).
--spec(exprs(Expressions, HookFunction) -> io_lib:chars() when
+-spec(exprs(Expressions, Options) -> io_lib:chars() when
Expressions :: [erl_parse:abstract_expr()],
- HookFunction :: hook_function()).
+ Options :: options()).
-exprs(Es, Hook) ->
- exprs(Es, 0, Hook).
+exprs(Es, Options) ->
+ exprs(Es, 0, Options).
--spec(exprs(Expressions, Indent, HookFunction) -> io_lib:chars() when
+-spec(exprs(Expressions, Indent, Options) -> io_lib:chars() when
Expressions :: [erl_parse:abstract_expr()],
Indent :: integer(),
- HookFunction :: hook_function()).
+ Options :: options()).
-exprs(Es, I, Hook) ->
- frmt({seq,[],[],[$,],lexprs(Es, Hook)}, I).
+exprs(Es, I, Options) ->
+ frmt({seq,[],[],[$,],lexprs(Es, options(Options))}, I, state(Options)).
-spec(expr(Expression) -> io_lib:chars() when
Expression :: erl_parse:abstract_expr()).
expr(E) ->
- frmt(lexpr(E, 0, none)).
+ frmt(lexpr(E, 0, options(none)), state(none)).
--spec(expr(Expression, HookFunction) -> io_lib:chars() when
+-spec(expr(Expression, Options) -> io_lib:chars() when
Expression :: erl_parse:abstract_expr(),
- HookFunction :: hook_function()).
+ Options :: options()).
-expr(E, Hook) ->
- frmt(lexpr(E, 0, Hook)).
+expr(E, Options) ->
+ frmt(lexpr(E, 0, options(Options)), state(Options)).
--spec(expr(Expression, Indent, HookFunction) -> io_lib:chars() when
+-spec(expr(Expression, Indent, Options) -> io_lib:chars() when
Expression :: erl_parse:abstract_expr(),
Indent :: integer(),
- HookFunction :: hook_function()).
+ Options :: options()).
-expr(E, I, Hook) ->
- frmt(lexpr(E, 0, Hook), I).
+expr(E, I, Options) ->
+ frmt(lexpr(E, 0, options(Options)), I, state(Options)).
--spec(expr(Expression, Indent, Precedence, HookFunction) -> io_lib:chars() when
+-spec(expr(Expression, Indent, Precedence, Options) -> io_lib:chars() when
Expression :: erl_parse:abstract_expr(),
Indent :: integer(),
Precedence :: non_neg_integer(),
- HookFunction :: hook_function()).
+ Options :: options()).
-expr(E, I, P, Hook) ->
- frmt(lexpr(E, P, Hook), I).
+expr(E, I, P, Options) ->
+ frmt(lexpr(E, P, options(Options)), I, state(Options)).
%%%
%%% Local functions
%%%
-lform({attribute,Line,Name,Arg}, Hook) ->
- lattribute({attribute,Line,Name,Arg}, Hook);
-lform({function,Line,Name,Arity,Clauses}, Hook) ->
- lfunction({function,Line,Name,Arity,Clauses}, Hook);
-lform({rule,Line,Name,Arity,Clauses}, Hook) ->
- lrule({rule,Line,Name,Arity,Clauses}, Hook);
+options(Options) when is_list(Options) ->
+ Hook = proplists:get_value(hook, Options, none),
+ Encoding = encoding(Options),
+ #options{hook = Hook, encoding = Encoding, opts = Options};
+options(Hook) ->
+ #options{hook = Hook, encoding = encoding([]), opts = Hook}.
+
+state(Options) when is_list(Options) ->
+ case encoding(Options) of
+ latin1 -> state();
+ unicode -> unicode_state()
+ end;
+state(_Hook) ->
+ state().
+
+state() ->
+ #pp{string_fun = fun io_lib:write_unicode_string_as_latin1/1,
+ char_fun = fun io_lib:write_unicode_char_as_latin1/1}.
+
+unicode_state() ->
+ #pp{string_fun = fun io_lib:write_unicode_string/1,
+ char_fun = fun io_lib:write_unicode_char/1}.
+
+encoding(Options) ->
+ case proplists:get_value(encoding, Options, epp:default_encoding()) of
+ latin1 -> latin1;
+ utf8 -> unicode;
+ unicode -> unicode
+ end.
+
+lform({attribute,Line,Name,Arg}, Opts) ->
+ lattribute({attribute,Line,Name,Arg}, Opts);
+lform({function,Line,Name,Arity,Clauses}, Opts) ->
+ lfunction({function,Line,Name,Arity,Clauses}, Opts);
+lform({rule,Line,Name,Arity,Clauses}, Opts) ->
+ lrule({rule,Line,Name,Arity,Clauses}, Opts);
%% These are specials to make it easier for the compiler.
-lform({error,E}, _Hook) ->
+lform({error,E}, _Opts) ->
leaf(format("~p\n", [{error,E}]));
-lform({warning,W}, _Hook) ->
+lform({warning,W}, _Opts) ->
leaf(format("~p\n", [{warning,W}]));
-lform({eof,_Line}, _Hook) ->
+lform({eof,_Line}, _Opts) ->
$\n.
-lattribute({attribute,_Line,type,Type}, Hook) ->
- [typeattr(type, Type, Hook),leaf(".\n")];
-lattribute({attribute,_Line,opaque,Type}, Hook) ->
- [typeattr(opaque, Type, Hook),leaf(".\n")];
-lattribute({attribute,_Line,spec,Arg}, _Hook) ->
+lattribute({attribute,_Line,type,Type}, Opts) ->
+ [typeattr(type, Type, Opts),leaf(".\n")];
+lattribute({attribute,_Line,opaque,Type}, Opts) ->
+ [typeattr(opaque, Type, Opts),leaf(".\n")];
+lattribute({attribute,_Line,spec,Arg}, _Opts) ->
[specattr(Arg),leaf(".\n")];
-lattribute({attribute,_Line,Name,Arg}, Hook) ->
- [lattribute(Name, Arg, Hook),leaf(".\n")].
+lattribute({attribute,_Line,Name,Arg}, Opts) ->
+ [lattribute(Name, Arg, Opts),leaf(".\n")].
-lattribute(module, {M,Vs}, _Hook) ->
+lattribute(module, {M,Vs}, _Opts) ->
attr("module",[{var,0,pname(M)},
foldr(fun(V, C) -> {cons,0,{var,0,V},C}
end, {nil,0}, Vs)]);
-lattribute(module, M, _Hook) ->
+lattribute(module, M, _Opts) ->
attr("module", [{var,0,pname(M)}]);
-lattribute(export, Falist, _Hook) ->
+lattribute(export, Falist, _Opts) ->
call({var,0,"-export"}, [falist(Falist)], 0, none);
-lattribute(import, Name, _Hook) when is_list(Name) ->
+lattribute(import, Name, _Opts) when is_list(Name) ->
attr("import", [{var,0,pname(Name)}]);
-lattribute(import, {From,Falist}, _Hook) ->
+lattribute(import, {From,Falist}, _Opts) ->
attr("import",[{var,0,pname(From)},falist(Falist)]);
-lattribute(file, {Name,Line}, _Hook) ->
+lattribute(file, {Name,Line}, _Opts) ->
attr("file", [{var,0,format("~p", [Name])},{integer,0,Line}]);
-lattribute(record, {Name,Is}, Hook) ->
+lattribute(record, {Name,Is}, Opts) ->
Nl = leaf(format("-record(~w,", [Name])),
- [{first,Nl,record_fields(Is, Hook)},$)];
-lattribute(Name, Arg, _Hook) ->
- attr(write(Name), [erl_parse:abstract(Arg)]).
+ [{first,Nl,record_fields(Is, Opts)},$)];
+lattribute(Name, Arg, #options{encoding = Encoding}) ->
+ attr(write(Name), [erl_parse:abstract(Arg, [{encoding,Encoding}])]).
-typeattr(Tag, {TypeName,Type,Args}, _Hook) ->
+typeattr(Tag, {TypeName,Type,Args}, _Opts) ->
{first,leaf("-"++atom_to_list(Tag)++" "),
typed(call({atom,0,TypeName}, Args, 0, none), Type)}.
@@ -293,7 +331,7 @@ guard_type(Before, Gs) ->
Gl = {list,[{step,'when',expr_list(Gs, [$,], fun constraint/2, none)}]},
{list,[{step,Before,Gl}]}.
-constraint({type,_Line,constraint,[Tag,As]}, _Hook) ->
+constraint({type,_Line,constraint,[Tag,As]}, _Opts) ->
simple_type(Tag, As).
fun_type(Before, {type,_,'fun',[FType,Ret]}) ->
@@ -333,231 +371,232 @@ falist([]) ->
falist([{Name,Arity}|Falist]) ->
{cons,0,{var,0,format("~w/~w", [Name,Arity])},falist(Falist)}.
-lfunction({function,_Line,Name,_Arity,Cs}, Hook) ->
- Cll = nl_clauses(fun (C, H) -> func_clause(Name, C, H) end, $;, Hook, Cs),
+lfunction({function,_Line,Name,_Arity,Cs}, Opts) ->
+ Cll = nl_clauses(fun (C, H) -> func_clause(Name, C, H) end, $;, Opts, Cs),
[Cll,leaf(".\n")].
-func_clause(Name, {clause,Line,Head,Guard,Body}, Hook) ->
- Hl = call({atom,Line,Name}, Head, 0, Hook),
- Gl = guard_when(Hl, Guard, Hook),
- Bl = body(Body, Hook),
+func_clause(Name, {clause,Line,Head,Guard,Body}, Opts) ->
+ Hl = call({atom,Line,Name}, Head, 0, Opts),
+ Gl = guard_when(Hl, Guard, Opts),
+ Bl = body(Body, Opts),
{step,Gl,Bl}.
-lrule({rule,_Line,Name,_Arity,Cs}, Hook) ->
- Cll = nl_clauses(fun (C, H) -> rule_clause(Name, C, H) end, $;, Hook, Cs),
+lrule({rule,_Line,Name,_Arity,Cs}, Opts) ->
+ Cll = nl_clauses(fun (C, H) -> rule_clause(Name, C, H) end, $;, Opts, Cs),
[Cll,leaf(".\n")].
-rule_clause(Name, {clause,Line,Head,Guard,Body}, Hook) ->
- Hl = call({atom,Line,Name}, Head, 0, Hook),
- Gl = guard_when(Hl, Guard, Hook, leaf(" :-")),
- Bl = rule_body(Body, Hook),
+rule_clause(Name, {clause,Line,Head,Guard,Body}, Opts) ->
+ Hl = call({atom,Line,Name}, Head, 0, Opts),
+ Gl = guard_when(Hl, Guard, Opts, leaf(" :-")),
+ Bl = rule_body(Body, Opts),
{step,Gl,Bl}.
-rule_body(Es, Hook) ->
- lc_quals(Es, Hook).
+rule_body(Es, Opts) ->
+ lc_quals(Es, Opts).
-guard_when(Before, Guard, Hook) ->
- guard_when(Before, Guard, Hook, ' ->').
+guard_when(Before, Guard, Opts) ->
+ guard_when(Before, Guard, Opts, ' ->').
-guard_when(Before, Guard, Hook, After) ->
- Gl = lguard(Guard, Hook),
+guard_when(Before, Guard, Opts, After) ->
+ Gl = lguard(Guard, Opts),
[{list,[{step,Before,Gl}]},After].
-lguard([E|Es], Hook) when is_list(E) ->
- {list,[{step,'when',expr_list([E|Es], [$;], fun guard0/2, Hook)}]};
-lguard([E|Es], Hook) -> % before R6
- lguard([[E|Es]], Hook);
+lguard([E|Es], Opts) when is_list(E) ->
+ {list,[{step,'when',expr_list([E|Es], [$;], fun guard0/2, Opts)}]};
+lguard([E|Es], Opts) -> % before R6
+ lguard([[E|Es]], Opts);
lguard([], _) ->
[].
-guard0(Es, Hook) ->
- expr_list(Es, [$,], fun lexpr/2, Hook).
+guard0(Es, Opts) ->
+ expr_list(Es, [$,], fun lexpr/2, Opts).
-%% body(Before, Es, Hook) -> [Char].
+%% body(Before, Es, Opts) -> [Char].
-body([E], Hook) ->
- lexpr(E, Hook);
-body(Es, Hook) ->
- {prefer_nl,[$,],lexprs(Es, Hook)}.
+body([E], Opts) ->
+ lexpr(E, Opts);
+body(Es, Opts) ->
+ {prefer_nl,[$,],lexprs(Es, Opts)}.
-lexpr(E, Hook) ->
- lexpr(E, 0, Hook).
+lexpr(E, Opts) ->
+ lexpr(E, 0, Opts).
lexpr({var,_,V}, _, _) when is_integer(V) -> %Special hack for Robert
leaf(format("_~w", [V]));
lexpr({var,_,V}, _, _) -> leaf(format("~s", [V]));
-lexpr({char,_,C}, _, _) -> leaf(write_char(C));
+lexpr({char,_,C}, _, _) -> {char,C};
lexpr({integer,_,N}, _, _) -> leaf(write(N));
lexpr({float,_,F}, _, _) -> leaf(write(F));
lexpr({atom,_,A}, _, _) -> leaf(write(A));
lexpr({string,_,S}, _, _) -> {string,S};
lexpr({nil,_}, _, _) -> '[]';
-lexpr({cons,_,H,T}, _, Hook) ->
- list(T, [H], Hook);
-lexpr({lc,_,E,Qs}, _Prec, Hook) ->
- Lcl = {list,[{step,[lexpr(E, Hook),leaf(" ||")],lc_quals(Qs, Hook)}]},
+lexpr({cons,_,H,T}, _, Opts) ->
+ list(T, [H], Opts);
+lexpr({lc,_,E,Qs}, _Prec, Opts) ->
+ Lcl = {list,[{step,[lexpr(E, Opts),leaf(" ||")],lc_quals(Qs, Opts)}]},
{list,[{seq,$[,[],[[]],[{force_nl,leaf(" "),[Lcl]}]},$]]};
%% {list,[{step,$[,Lcl},$]]};
-lexpr({bc,_,E,Qs}, _Prec, Hook) ->
- Lcl = {list,[{step,[lexpr(E, Hook),leaf(" ||")],lc_quals(Qs, Hook)}]},
+lexpr({bc,_,E,Qs}, _Prec, Opts) ->
+ Lcl = {list,[{step,[lexpr(E, Opts),leaf(" ||")],lc_quals(Qs, Opts)}]},
{list,[{seq,'<<',[],[[]],[{force_nl,leaf(" "),[Lcl]}]},'>>']};
%% {list,[{step,'<<',Lcl},'>>']};
-lexpr({tuple,_,Elts}, _, Hook) ->
- tuple(Elts, Hook);
-%%lexpr({struct,_,Tag,Elts}, _, Hook) ->
-%% {first,format("~w", [Tag]),tuple(Elts, Hook)};
-lexpr({record_index, _, Name, F}, Prec, Hook) ->
+lexpr({tuple,_,Elts}, _, Opts) ->
+ tuple(Elts, Opts);
+%%lexpr({struct,_,Tag,Elts}, _, Opts) ->
+%% {first,format("~w", [Tag]),tuple(Elts, Opts)};
+lexpr({record_index, _, Name, F}, Prec, Opts) ->
{P,R} = preop_prec('#'),
Nl = record_name(Name),
- El = [Nl,$.,lexpr(F, R, Hook)],
+ El = [Nl,$.,lexpr(F, R, Opts)],
maybe_paren(P, Prec, El);
-lexpr({record, _, Name, Fs}, Prec, Hook) ->
+lexpr({record, _, Name, Fs}, Prec, Opts) ->
{P,_R} = preop_prec('#'),
Nl = record_name(Name),
- El = {first,Nl,record_fields(Fs, Hook)},
+ El = {first,Nl,record_fields(Fs, Opts)},
maybe_paren(P, Prec, El);
-lexpr({record_field, _, Rec, Name, F}, Prec, Hook) ->
+lexpr({record_field, _, Rec, Name, F}, Prec, Opts) ->
{L,P,R} = inop_prec('#'),
- Rl = lexpr(Rec, L, Hook),
+ Rl = lexpr(Rec, L, Opts),
Nl = leaf(format("#~w.", [Name])),
- El = [Rl,Nl,lexpr(F, R, Hook)],
+ El = [Rl,Nl,lexpr(F, R, Opts)],
maybe_paren(P, Prec, El);
-lexpr({record, _, Rec, Name, Fs}, Prec, Hook) ->
+lexpr({record, _, Rec, Name, Fs}, Prec, Opts) ->
{L,P,_R} = inop_prec('#'),
- Rl = lexpr(Rec, L, Hook),
+ Rl = lexpr(Rec, L, Opts),
Nl = record_name(Name),
- El = {first,[Rl,Nl],record_fields(Fs, Hook)},
+ El = {first,[Rl,Nl],record_fields(Fs, Opts)},
maybe_paren(P, Prec, El);
-lexpr({record_field, _, {atom,_,''}, F}, Prec, Hook) ->
+lexpr({record_field, _, {atom,_,''}, F}, Prec, Opts) ->
{_L,P,R} = inop_prec('.'),
- El = [$.,lexpr(F, R, Hook)],
+ El = [$.,lexpr(F, R, Opts)],
maybe_paren(P, Prec, El);
-lexpr({record_field, _, Rec, F}, Prec, Hook) ->
+lexpr({record_field, _, Rec, F}, Prec, Opts) ->
{L,P,R} = inop_prec('.'),
- El = [lexpr(Rec, L, Hook),$.,lexpr(F, R, Hook)],
+ El = [lexpr(Rec, L, Opts),$.,lexpr(F, R, Opts)],
maybe_paren(P, Prec, El);
-lexpr({block,_,Es}, _, Hook) ->
- {list,[{step,'begin',body(Es, Hook)},'end']};
-lexpr({'if',_,Cs}, _, Hook) ->
- {list,[{step,'if',if_clauses(Cs, Hook)},'end']};
-lexpr({'case',_,Expr,Cs}, _, Hook) ->
- {list,[{step,{list,[{step,'case',lexpr(Expr, Hook)},'of']},
- cr_clauses(Cs, Hook)},
+lexpr({block,_,Es}, _, Opts) ->
+ {list,[{step,'begin',body(Es, Opts)},'end']};
+lexpr({'if',_,Cs}, _, Opts) ->
+ {list,[{step,'if',if_clauses(Cs, Opts)},'end']};
+lexpr({'case',_,Expr,Cs}, _, Opts) ->
+ {list,[{step,{list,[{step,'case',lexpr(Expr, Opts)},'of']},
+ cr_clauses(Cs, Opts)},
'end']};
-lexpr({'cond',_,Cs}, _, Hook) ->
- {list,[{step,leaf("cond"),cond_clauses(Cs, Hook)},'end']};
-lexpr({'receive',_,Cs}, _, Hook) ->
- {list,[{step,'receive',cr_clauses(Cs, Hook)},'end']};
-lexpr({'receive',_,Cs,To,ToOpt}, _, Hook) ->
- Al = {list,[{step,[lexpr(To, Hook),' ->'],body(ToOpt, Hook)}]},
- {list,[{step,'receive',cr_clauses(Cs, Hook)},
+lexpr({'cond',_,Cs}, _, Opts) ->
+ {list,[{step,leaf("cond"),cond_clauses(Cs, Opts)},'end']};
+lexpr({'receive',_,Cs}, _, Opts) ->
+ {list,[{step,'receive',cr_clauses(Cs, Opts)},'end']};
+lexpr({'receive',_,Cs,To,ToOpt}, _, Opts) ->
+ Al = {list,[{step,[lexpr(To, Opts),' ->'],body(ToOpt, Opts)}]},
+ {list,[{step,'receive',cr_clauses(Cs, Opts)},
{step,'after',Al},
'end']};
-lexpr({'fun',_,{function,F,A}}, _Prec, _Hook) ->
+lexpr({'fun',_,{function,F,A}}, _Prec, _Opts) ->
leaf(format("fun ~w/~w", [F,A]));
-lexpr({'fun',_,{function,F,A},Extra}, _Prec, _Hook) ->
+lexpr({'fun',_,{function,F,A},Extra}, _Prec, _Opts) ->
{force_nl,fun_info(Extra),leaf(format("fun ~w/~w", [F,A]))};
-lexpr({'fun',_,{function,M,F,A}}, _Prec, _Hook)
+lexpr({'fun',_,{function,M,F,A}}, _Prec, _Opts)
when is_atom(M), is_atom(F), is_integer(A) ->
%% For backward compatibility with pre-R15 abstract format.
leaf(format("fun ~w:~w/~w", [M,F,A]));
-lexpr({'fun',_,{function,M,F,A}}, _Prec, Hook) ->
+lexpr({'fun',_,{function,M,F,A}}, _Prec, Opts) ->
%% New format in R15.
- NameItem = lexpr(M, Hook),
- CallItem = lexpr(F, Hook),
- ArityItem = lexpr(A, Hook),
+ NameItem = lexpr(M, Opts),
+ CallItem = lexpr(F, Opts),
+ ArityItem = lexpr(A, Opts),
["fun ",NameItem,$:,CallItem,$/,ArityItem];
-lexpr({'fun',_,{clauses,Cs}}, _Prec, Hook) ->
- {list,[{first,'fun',fun_clauses(Cs, Hook)},'end']};
-lexpr({'fun',_,{clauses,Cs},Extra}, _Prec, Hook) ->
+lexpr({'fun',_,{clauses,Cs}}, _Prec, Opts) ->
+ {list,[{first,'fun',fun_clauses(Cs, Opts)},'end']};
+lexpr({'fun',_,{clauses,Cs},Extra}, _Prec, Opts) ->
{force_nl,fun_info(Extra),
- {list,[{first,'fun',fun_clauses(Cs, Hook)},'end']}};
-lexpr({'query',_,Lc}, _Prec, Hook) ->
- {list,[{step,leaf("query"),lexpr(Lc, 0, Hook)},'end']};
-lexpr({call,_,{remote,_,{atom,_,M},{atom,_,F}=N}=Name,Args}, Prec, Hook) ->
+ {list,[{first,'fun',fun_clauses(Cs, Opts)},'end']}};
+lexpr({'query',_,Lc}, _Prec, Opts) ->
+ {list,[{step,leaf("query"),lexpr(Lc, 0, Opts)},'end']};
+lexpr({call,_,{remote,_,{atom,_,M},{atom,_,F}=N}=Name,Args}, Prec, Opts) ->
case erl_internal:bif(M, F, length(Args)) of
true ->
- call(N, Args, Prec, Hook);
+ call(N, Args, Prec, Opts);
false ->
- call(Name, Args, Prec, Hook)
+ call(Name, Args, Prec, Opts)
end;
-lexpr({call,_,Name,Args}, Prec, Hook) ->
- call(Name, Args, Prec, Hook);
-lexpr({'try',_,Es,Scs,Ccs,As}, _, Hook) ->
+lexpr({call,_,Name,Args}, Prec, Opts) ->
+ call(Name, Args, Prec, Opts);
+lexpr({'try',_,Es,Scs,Ccs,As}, _, Opts) ->
{list,[if
Scs =:= [] ->
- {step,'try',body(Es, Hook)};
+ {step,'try',body(Es, Opts)};
true ->
- {step,{list,[{step,'try',body(Es, Hook)},'of']},
- cr_clauses(Scs, Hook)}
+ {step,{list,[{step,'try',body(Es, Opts)},'of']},
+ cr_clauses(Scs, Opts)}
end,
if
Ccs =:= [] ->
[];
true ->
- {step,'catch',try_clauses(Ccs, Hook)}
+ {step,'catch',try_clauses(Ccs, Opts)}
end,
if
As =:= [] ->
[];
true ->
- {step,'after',body(As, Hook)}
+ {step,'after',body(As, Opts)}
end,
'end']};
-lexpr({'catch',_,Expr}, Prec, Hook) ->
+lexpr({'catch',_,Expr}, Prec, Opts) ->
{P,R} = preop_prec('catch'),
- El = {list,[{step,'catch',lexpr(Expr, R, Hook)}]},
+ El = {list,[{step,'catch',lexpr(Expr, R, Opts)}]},
maybe_paren(P, Prec, El);
-lexpr({match,_,Lhs,Rhs}, Prec, Hook) ->
+lexpr({match,_,Lhs,Rhs}, Prec, Opts) ->
{L,P,R} = inop_prec('='),
- Pl = lexpr(Lhs, L, Hook),
- Rl = lexpr(Rhs, R, Hook),
+ Pl = lexpr(Lhs, L, Opts),
+ Rl = lexpr(Rhs, R, Opts),
El = {list,[{cstep,[Pl,' ='],Rl}]},
maybe_paren(P, Prec, El);
-lexpr({op,_,Op,Arg}, Prec, Hook) ->
+lexpr({op,_,Op,Arg}, Prec, Opts) ->
{P,R} = preop_prec(Op),
Ol = leaf(format("~s ", [Op])),
- El = [Ol,lexpr(Arg, R, Hook)],
+ El = [Ol,lexpr(Arg, R, Opts)],
maybe_paren(P, Prec, El);
-lexpr({op,_,Op,Larg,Rarg}, Prec, Hook) when Op =:= 'orelse';
+lexpr({op,_,Op,Larg,Rarg}, Prec, Opts) when Op =:= 'orelse';
Op =:= 'andalso' ->
%% Breaks lines since R12B.
{L,P,R} = inop_prec(Op),
- Ll = lexpr(Larg, L, Hook),
+ Ll = lexpr(Larg, L, Opts),
Ol = leaf(format("~s", [Op])),
- Lr = lexpr(Rarg, R, Hook),
+ Lr = lexpr(Rarg, R, Opts),
El = {prefer_nl,[[]],[Ll,Ol,Lr]},
maybe_paren(P, Prec, El);
-lexpr({op,_,Op,Larg,Rarg}, Prec, Hook) ->
+lexpr({op,_,Op,Larg,Rarg}, Prec, Opts) ->
{L,P,R} = inop_prec(Op),
- Ll = lexpr(Larg, L, Hook),
+ Ll = lexpr(Larg, L, Opts),
Ol = leaf(format("~s", [Op])),
- Lr = lexpr(Rarg, R, Hook),
+ Lr = lexpr(Rarg, R, Opts),
El = {list,[Ll,Ol,Lr]},
maybe_paren(P, Prec, El);
%% Special expressions which are not really legal everywhere.
-lexpr({remote,_,M,F}, Prec, Hook) ->
+lexpr({remote,_,M,F}, Prec, Opts) ->
{L,P,R} = inop_prec(':'),
- NameItem = lexpr(M, L, Hook),
- CallItem = lexpr(F, R, Hook),
+ NameItem = lexpr(M, L, Opts),
+ CallItem = lexpr(F, R, Opts),
maybe_paren(P, Prec, [NameItem,$:,CallItem]);
%% BIT SYNTAX:
-lexpr({bin,_,Fs}, _, Hook) ->
- bit_grp(Fs, Hook);
+lexpr({bin,_,Fs}, _, Opts) ->
+ bit_grp(Fs, Opts);
%% Special case for straight values.
lexpr({value,_,Val}, _,_) ->
leaf(write(Val));
%% Now do the hook.
-lexpr(Other, _Precedence, none) ->
+lexpr(Other, _Precedence, #options{hook = none}) ->
leaf(format("INVALID-FORM:~w:",[Other]));
-lexpr(HookExpr, Precedence, {Mod,Func,Eas}) when Mod =/= 'fun' ->
+lexpr(HookExpr, Precedence, #options{hook = {Mod,Func,Eas}})
+ when Mod =/= 'fun' ->
{ehook,HookExpr,Precedence,{Mod,Func,Eas}};
-lexpr(HookExpr, Precedence, Func) ->
- {hook,HookExpr,Precedence,Func}.
+lexpr(HookExpr, Precedence, #options{hook = Func, opts = Options}) ->
+ {hook,HookExpr,Precedence,Func,Options}.
-call(Name, Args, Prec, Hook) ->
+call(Name, Args, Prec, Opts) ->
{F,P} = func_prec(),
- Item = {first,lexpr(Name, F, Hook),args(Args, Hook)},
+ Item = {first,lexpr(Name, F, Opts),args(Args, Opts)},
maybe_paren(P, Prec, Item).
fun_info(Extra) ->
@@ -565,32 +604,18 @@ fun_info(Extra) ->
%% BITS:
-bit_grp(Fs, Hook) ->
- append([['<<'],
- [try
- true = Fs =/= [],
- S = bin_string(Fs),
- true = io_lib:printable_list(S),
- {string,S}
- catch _:_ ->
- bit_elems(Fs, Hook)
- end],
- ['>>']]).
-
-bin_string([]) ->
- [];
-bin_string([{bin_element,_,{char,_,C},_,_}|Bin]) ->
- [C | bin_string(Bin)].
+bit_grp(Fs, Opts) ->
+ append([['<<'], [bit_elems(Fs, Opts)], ['>>']]).
-bit_elems(Es, Hook) ->
- expr_list(Es, $,, fun bit_elem/2, Hook).
+bit_elems(Es, Opts) ->
+ expr_list(Es, $,, fun bit_elem/2, Opts).
-bit_elem({bin_element,_,Expr,Sz,Types}, Hook) ->
+bit_elem({bin_element,_,Expr,Sz,Types}, Opts) ->
P = max_prec(),
- VChars = lexpr(Expr, P, Hook),
+ VChars = lexpr(Expr, P, Opts),
SChars = if
Sz =/= default ->
- [VChars,$:,lexpr(Sz, P, Hook)];
+ [VChars,$:,lexpr(Sz, P, Opts)];
true ->
VChars
end,
@@ -618,157 +643,157 @@ bit_elem_type(T) ->
record_name(Name) ->
leaf(format("#~w", [Name])).
-record_fields(Fs, Hook) ->
- tuple(Fs, fun record_field/2, Hook).
+record_fields(Fs, Opts) ->
+ tuple(Fs, fun record_field/2, Opts).
-record_field({record_field,_,F,Val}, Hook) ->
+record_field({record_field,_,F,Val}, Opts) ->
{L,_P,R} = inop_prec('='),
- Fl = lexpr(F, L, Hook),
- Vl = lexpr(Val, R, Hook),
+ Fl = lexpr(F, L, Opts),
+ Vl = lexpr(Val, R, Opts),
{list,[{cstep,[Fl,' ='],Vl}]};
-record_field({typed_record_field,{record_field,_,F,Val},Type}, Hook) ->
+record_field({typed_record_field,{record_field,_,F,Val},Type}, Opts) ->
{L,_P,R} = inop_prec('='),
- Fl = lexpr(F, L, Hook),
- Vl = typed(lexpr(Val, R, Hook), Type),
+ Fl = lexpr(F, L, Opts),
+ Vl = typed(lexpr(Val, R, Opts), Type),
{list,[{cstep,[Fl,' ='],Vl}]};
-record_field({typed_record_field,Field,Type}, Hook) ->
- typed(record_field(Field, Hook), Type);
-record_field({record_field,_,F}, Hook) ->
- lexpr(F, 0, Hook).
-
-list({cons,_,H,T}, Es, Hook) ->
- list(T, [H|Es], Hook);
-list({nil,_}, Es, Hook) ->
- proper_list(reverse(Es), Hook);
-list(Other, Es, Hook) ->
- improper_list(reverse(Es, [Other]), Hook).
-
-%% if_clauses(Clauses, Hook) -> [Char].
+record_field({typed_record_field,Field,Type}, Opts) ->
+ typed(record_field(Field, Opts), Type);
+record_field({record_field,_,F}, Opts) ->
+ lexpr(F, 0, Opts).
+
+list({cons,_,H,T}, Es, Opts) ->
+ list(T, [H|Es], Opts);
+list({nil,_}, Es, Opts) ->
+ proper_list(reverse(Es), Opts);
+list(Other, Es, Opts) ->
+ improper_list(reverse(Es, [Other]), Opts).
+
+%% if_clauses(Clauses, Opts) -> [Char].
%% Print 'if' clauses.
-if_clauses(Cs, Hook) ->
- clauses(fun if_clause/2, Hook, Cs).
+if_clauses(Cs, Opts) ->
+ clauses(fun if_clause/2, Opts, Cs).
-if_clause({clause,_,[],G,B}, Hook) ->
- Gl = [guard_no_when(G, Hook),' ->'],
- {step,Gl,body(B, Hook)}.
+if_clause({clause,_,[],G,B}, Opts) ->
+ Gl = [guard_no_when(G, Opts),' ->'],
+ {step,Gl,body(B, Opts)}.
-guard_no_when([E|Es], Hook) when is_list(E) ->
- expr_list([E|Es], $;, fun guard0/2, Hook);
-guard_no_when([E|Es], Hook) -> % before R6
- guard_no_when([[E|Es]], Hook);
+guard_no_when([E|Es], Opts) when is_list(E) ->
+ expr_list([E|Es], $;, fun guard0/2, Opts);
+guard_no_when([E|Es], Opts) -> % before R6
+ guard_no_when([[E|Es]], Opts);
guard_no_when([], _) -> % cannot happen
leaf("true").
-%% cr_clauses(Clauses, Hook) -> [Char].
+%% cr_clauses(Clauses, Opts) -> [Char].
%% Print 'case'/'receive' clauses.
-cr_clauses(Cs, Hook) ->
- clauses(fun cr_clause/2, Hook, Cs).
+cr_clauses(Cs, Opts) ->
+ clauses(fun cr_clause/2, Opts, Cs).
-cr_clause({clause,_,[T],G,B}, Hook) ->
- El = lexpr(T, 0, Hook),
- Gl = guard_when(El, G, Hook),
- Bl = body(B, Hook),
+cr_clause({clause,_,[T],G,B}, Opts) ->
+ El = lexpr(T, 0, Opts),
+ Gl = guard_when(El, G, Opts),
+ Bl = body(B, Opts),
{step,Gl,Bl}.
-%% try_clauses(Clauses, Hook) -> [Char].
+%% try_clauses(Clauses, Opts) -> [Char].
%% Print 'try' clauses.
-try_clauses(Cs, Hook) ->
- clauses(fun try_clause/2, Hook, Cs).
+try_clauses(Cs, Opts) ->
+ clauses(fun try_clause/2, Opts, Cs).
-try_clause({clause,_,[{tuple,_,[{atom,_,throw},V,S]}],G,B}, Hook) ->
- El = lexpr(V, 0, Hook),
- Sl = stack_backtrace(S, [El], Hook),
- Gl = guard_when(Sl, G, Hook),
- Bl = body(B, Hook),
+try_clause({clause,_,[{tuple,_,[{atom,_,throw},V,S]}],G,B}, Opts) ->
+ El = lexpr(V, 0, Opts),
+ Sl = stack_backtrace(S, [El], Opts),
+ Gl = guard_when(Sl, G, Opts),
+ Bl = body(B, Opts),
{step,Gl,Bl};
-try_clause({clause,_,[{tuple,_,[C,V,S]}],G,B}, Hook) ->
- Cs = lexpr(C, 0, Hook),
- El = lexpr(V, 0, Hook),
+try_clause({clause,_,[{tuple,_,[C,V,S]}],G,B}, Opts) ->
+ Cs = lexpr(C, 0, Opts),
+ El = lexpr(V, 0, Opts),
CsEl = [Cs,$:,El],
- Sl = stack_backtrace(S, CsEl, Hook),
- Gl = guard_when(Sl, G, Hook),
- Bl = body(B, Hook),
+ Sl = stack_backtrace(S, CsEl, Opts),
+ Gl = guard_when(Sl, G, Opts),
+ Bl = body(B, Opts),
{step,Gl,Bl}.
-stack_backtrace({var,_,'_'}, El, _Hook) ->
+stack_backtrace({var,_,'_'}, El, _Opts) ->
El;
-stack_backtrace(S, El, Hook) ->
- El++[$:,lexpr(S, 0, Hook)].
+stack_backtrace(S, El, Opts) ->
+ El++[$:,lexpr(S, 0, Opts)].
-%% fun_clauses(Clauses, Hook) -> [Char].
+%% fun_clauses(Clauses, Opts) -> [Char].
%% Print 'fun' clauses.
-fun_clauses(Cs, Hook) ->
- nl_clauses(fun fun_clause/2, [$;], Hook, Cs).
+fun_clauses(Cs, Opts) ->
+ nl_clauses(fun fun_clause/2, [$;], Opts, Cs).
-fun_clause({clause,_,A,G,B}, Hook) ->
- El = args(A, Hook),
- Gl = guard_when(El, G, Hook),
- Bl = body(B, Hook),
+fun_clause({clause,_,A,G,B}, Opts) ->
+ El = args(A, Opts),
+ Gl = guard_when(El, G, Opts),
+ Bl = body(B, Opts),
{step,Gl,Bl}.
-%% cond_clauses(Clauses, Hook) -> [Char].
+%% cond_clauses(Clauses, Opts) -> [Char].
%% Print 'cond' clauses.
-cond_clauses(Cs, Hook) ->
- clauses(fun cond_clause/2, Hook, Cs).
+cond_clauses(Cs, Opts) ->
+ clauses(fun cond_clause/2, Opts, Cs).
-cond_clause({clause,_,[],[[E]],B}, Hook) ->
- {step,[lexpr(E, Hook),' ->'],body(B, Hook)}.
+cond_clause({clause,_,[],[[E]],B}, Opts) ->
+ {step,[lexpr(E, Opts),' ->'],body(B, Opts)}.
-%% nl_clauses(Type, Hook, Clauses) -> [Char].
+%% nl_clauses(Type, Opts, Clauses) -> [Char].
%% Generic clause printing function (always breaks lines).
-nl_clauses(Type, Sep, Hook, Cs) ->
- {prefer_nl,Sep,lexprs(Cs, Type, Hook)}.
+nl_clauses(Type, Sep, Opts, Cs) ->
+ {prefer_nl,Sep,lexprs(Cs, Type, Opts)}.
-%% clauses(Type, Hook, Clauses) -> [Char].
+%% clauses(Type, Opts, Clauses) -> [Char].
%% Generic clause printing function (breaks lines since R12B).
-clauses(Type, Hook, Cs) ->
- {prefer_nl,[$;],lexprs(Cs, Type, Hook)}.
+clauses(Type, Opts, Cs) ->
+ {prefer_nl,[$;],lexprs(Cs, Type, Opts)}.
-%% lc_quals(Qualifiers, After, Hook)
+%% lc_quals(Qualifiers, After, Opts)
%% List comprehension qualifiers (breaks lines since R12B).
-lc_quals(Qs, Hook) ->
- {prefer_nl,[$,],lexprs(Qs, fun lc_qual/2, Hook)}.
+lc_quals(Qs, Opts) ->
+ {prefer_nl,[$,],lexprs(Qs, fun lc_qual/2, Opts)}.
-lc_qual({b_generate,_,Pat,E}, Hook) ->
- Pl = lexpr(Pat, 0, Hook),
- {list,[{step,[Pl,leaf(" <=")],lexpr(E, 0, Hook)}]};
-lc_qual({generate,_,Pat,E}, Hook) ->
- Pl = lexpr(Pat, 0, Hook),
- {list,[{step,[Pl,leaf(" <-")],lexpr(E, 0, Hook)}]};
-lc_qual(Q, Hook) ->
- lexpr(Q, 0, Hook).
+lc_qual({b_generate,_,Pat,E}, Opts) ->
+ Pl = lexpr(Pat, 0, Opts),
+ {list,[{step,[Pl,leaf(" <=")],lexpr(E, 0, Opts)}]};
+lc_qual({generate,_,Pat,E}, Opts) ->
+ Pl = lexpr(Pat, 0, Opts),
+ {list,[{step,[Pl,leaf(" <-")],lexpr(E, 0, Opts)}]};
+lc_qual(Q, Opts) ->
+ lexpr(Q, 0, Opts).
-proper_list(Es, Hook) ->
- {seq,$[,$],$,,lexprs(Es, Hook)}.
+proper_list(Es, Opts) ->
+ {seq,$[,$],$,,lexprs(Es, Opts)}.
-improper_list(Es, Hook) ->
- {seq,$[,$],{$,,$|},lexprs(Es, Hook)}.
+improper_list(Es, Opts) ->
+ {seq,$[,$],{$,,$|},lexprs(Es, Opts)}.
-tuple(L, Hook) ->
- tuple(L, fun lexpr/2, Hook).
+tuple(L, Opts) ->
+ tuple(L, fun lexpr/2, Opts).
-tuple(Es, F, Hook) ->
- {seq,${,$},$,,lexprs(Es, F, Hook)}.
+tuple(Es, F, Opts) ->
+ {seq,${,$},$,,lexprs(Es, F, Opts)}.
-args(As, Hook) ->
- {seq,$(,$),[$,],lexprs(As, Hook)}.
+args(As, Opts) ->
+ {seq,$(,$),[$,],lexprs(As, Opts)}.
-expr_list(Es, Sep, F, Hook) ->
- {seq,[],[],Sep,lexprs(Es, F, Hook)}.
+expr_list(Es, Sep, F, Opts) ->
+ {seq,[],[],Sep,lexprs(Es, F, Opts)}.
-lexprs(Es, Hook) ->
- lexprs(Es, fun lexpr/2, Hook).
+lexprs(Es, Opts) ->
+ lexprs(Es, fun lexpr/2, Opts).
-lexprs(Es, F, Hook) ->
- [F(E, Hook) || E <- Es].
+lexprs(Es, F, Opts) ->
+ [F(E, Opts) || E <- Es].
maybe_paren(P, Prec, Expr) when P < Prec ->
[$(,Expr,$)];
@@ -781,13 +806,13 @@ leaf(S) ->
%%% Do the formatting. Currently nothing fancy. Could probably have
%%% done it in one single pass.
-frmt(Item) ->
- frmt(Item, 0).
+frmt(Item, PP) ->
+ frmt(Item, 0, PP).
-frmt(Item, I) ->
+frmt(Item, I, PP) ->
ST = spacetab(),
WT = wordtable(),
- {Chars,_Length} = f(Item, I, ST, WT),
+ {Chars,_Length} = f(Item, I, ST, WT, PP),
[Chars].
%%% What the tags mean:
@@ -803,6 +828,7 @@ frmt(Item, I) ->
%%% - {force_nl,ExtraInfo,I}: fun-info (a comment) forces linebreak before I.
%%% - {prefer_nl,Sep,IPs}: forces linebreak between Is unlesss negative
%%% indentation.
+%%% - {char,C}: a character
%%% - {string,S}: a string.
%%% - {hook,...}, {ehook,...}: hook expressions.
%%%
@@ -812,22 +838,22 @@ frmt(Item, I) ->
%%% cstep works similarly, but no linebreak if the width of I1 is less
%%% than the indentation (this is for "A = <expression over several lines>).
-f([]=Nil, _I0, _ST, _WT) ->
+f([]=Nil, _I0, _ST, _WT, _PP) ->
{Nil,0};
-f(C, _I0, _ST, _WT) when is_integer(C) ->
+f(C, _I0, _ST, _WT, _PP) when is_integer(C) ->
{C,1};
-f({leaf,Length,Chars}, _I0, _ST, _WT) ->
+f({leaf,Length,Chars}, _I0, _ST, _WT, _PP) ->
{Chars,Length};
-f([Item|Items], I0, ST, WT) ->
- consecutive(Items, f(Item, I0, ST, WT), I0, ST, WT);
-f({list,Items}, I0, ST, WT) ->
- f({seq,[],[],[[]],Items}, I0, ST, WT);
-f({first,E,Item}, I0, ST, WT) ->
- f({seq,E,[],[[]],[Item]}, I0, ST, WT);
-f({seq,Before,After,Sep,LItems}, I0, ST, WT) ->
- BCharsSize = f(Before, I0, ST, WT),
+f([Item|Items], I0, ST, WT, PP) ->
+ consecutive(Items, f(Item, I0, ST, WT, PP), I0, ST, WT, PP);
+f({list,Items}, I0, ST, WT, PP) ->
+ f({seq,[],[],[[]],Items}, I0, ST, WT, PP);
+f({first,E,Item}, I0, ST, WT, PP) ->
+ f({seq,E,[],[[]],[Item]}, I0, ST, WT, PP);
+f({seq,Before,After,Sep,LItems}, I0, ST, WT, PP) ->
+ BCharsSize = f(Before, I0, ST, WT, PP),
I = indent(BCharsSize, I0),
- CharsSizeL = fl(LItems, Sep, I, After, ST, WT),
+ CharsSizeL = fl(LItems, Sep, I, After, ST, WT, PP),
{CharsL,SizeL} = unz(CharsSizeL),
{BCharsL,BSizeL} = unz1([BCharsSize]),
Sizes = BSizeL ++ SizeL,
@@ -848,15 +874,15 @@ f({seq,Before,After,Sep,LItems}, I0, ST, WT) ->
{BCharsL++insert_newlines(CharsSizeL, I, ST),
nsz(lists:last(Sizes), I0)}
end;
-f({force_nl,_ExtraInfoItem,Item}, I, ST, WT) when I < 0 ->
+f({force_nl,_ExtraInfoItem,Item}, I, ST, WT, PP) when I < 0 ->
%% Extra info is a comment; cannot have that on the same line
- f(Item, I, ST, WT);
-f({force_nl,ExtraInfoItem,Item}, I, ST, WT) ->
- f({prefer_nl,[],[ExtraInfoItem,Item]}, I, ST, WT);
-f({prefer_nl,Sep,LItems}, I, ST, WT) when I < 0 ->
- f({seq,[],[],Sep,LItems}, I, ST, WT);
-f({prefer_nl,Sep,LItems}, I0, ST, WT) ->
- CharsSize2L = fl(LItems, Sep, I0, [], ST, WT),
+ f(Item, I, ST, WT, PP);
+f({force_nl,ExtraInfoItem,Item}, I, ST, WT, PP) ->
+ f({prefer_nl,[],[ExtraInfoItem,Item]}, I, ST, WT, PP);
+f({prefer_nl,Sep,LItems}, I, ST, WT, PP) when I < 0 ->
+ f({seq,[],[],Sep,LItems}, I, ST, WT, PP);
+f({prefer_nl,Sep,LItems}, I0, ST, WT, PP) ->
+ CharsSize2L = fl(LItems, Sep, I0, [], ST, WT, PP),
{_CharsL,Sizes} = unz(CharsSize2L),
if
Sizes =:= [] ->
@@ -864,37 +890,40 @@ f({prefer_nl,Sep,LItems}, I0, ST, WT) ->
true ->
{insert_newlines(CharsSize2L, I0, ST),nsz(lists:last(Sizes), I0)}
end;
-f({string,S}, I, ST, WT) ->
- f(write_a_string(S, I), I, ST, WT);
-f({hook,HookExpr,Precedence,Func}, I, _ST, _WT) ->
- Chars = Func(HookExpr, I, Precedence, Func),
+f({char,C}, I, ST, WT, PP) ->
+ f(write_a_char(C, PP), I, ST, WT, PP);
+f({string,S}, I, ST, WT, PP) ->
+ f(write_a_string(S, I, PP), I, ST, WT, PP);
+f({hook,HookExpr,Precedence,Func,Options}, I, _ST, _WT, _PP) ->
+ Chars = Func(HookExpr, I, Precedence, Options),
{Chars,indentation(Chars, I)};
-f({ehook,HookExpr,Precedence,{Mod,Func,Eas}=ModFuncEas}, I, _ST, _WT) ->
+f({ehook,HookExpr,Precedence,{Mod,Func,Eas}=ModFuncEas}, I, _ST, _WT, _PP) ->
Chars = apply(Mod, Func, [HookExpr,I,Precedence,ModFuncEas|Eas]),
{Chars,indentation(Chars, I)};
-f(WordName, _I, _ST, WT) -> % when is_atom(WordName)
+f(WordName, _I, _ST, WT, _PP) -> % when is_atom(WordName)
word(WordName, WT).
-define(IND, 4).
%% fl(ListItems, I0, ST, WT) -> [[CharsSize1,CharsSize2]]
%% ListItems = [{Item,Items}|Item]
-fl([], _Sep, I0, After, ST, WT) ->
- [[f(After, I0, ST, WT),{[],0}]];
-fl(CItems, Sep0, I0, After, ST, WT) ->
+fl([], _Sep, I0, After, ST, WT, PP) ->
+ [[f(After, I0, ST, WT, PP),{[],0}]];
+fl(CItems, Sep0, I0, After, ST, WT, PP) ->
F = fun({step,Item1,Item2}, S) ->
- [f(Item1, I0, ST, WT),f([Item2,S], incr(I0, ?IND), ST, WT)];
+ [f(Item1, I0, ST, WT, PP),
+ f([Item2,S], incr(I0, ?IND), ST, WT, PP)];
({cstep,Item1,Item2}, S) ->
- {_,Sz1} = CharSize1 = f(Item1, I0, ST, WT),
+ {_,Sz1} = CharSize1 = f(Item1, I0, ST, WT, PP),
if
is_integer(Sz1), Sz1 < ?IND ->
Item2p = [leaf("\s"),Item2,S],
- [consecutive(Item2p, CharSize1, I0, ST, WT),{[],0}];
+ [consecutive(Item2p, CharSize1, I0, ST, WT, PP),{[],0}];
true ->
- [CharSize1,f([Item2,S], incr(I0, ?IND), ST, WT)]
+ [CharSize1,f([Item2,S], incr(I0, ?IND), ST, WT, PP)]
end;
(Item, S) ->
- [f([Item,S], I0, ST, WT),{[],0}]
+ [f([Item,S], I0, ST, WT, PP),{[],0}]
end,
{Sep,LastSep} = case Sep0 of {_,_} -> Sep0; _ -> {Sep0,Sep0} end,
fl1(CItems, F, Sep, LastSep, After).
@@ -906,10 +935,10 @@ fl1([CItem1,CItem2], F, _Sep, LastSep, After) ->
fl1([CItem|CItems], F, Sep, LastSep, After) ->
[F(CItem, Sep)|fl1(CItems, F, Sep, LastSep, After)].
-consecutive(Items, CharSize1, I0, ST, WT) ->
+consecutive(Items, CharSize1, I0, ST, WT, PP) ->
{CharsSizes,_Length} =
mapfoldl(fun(Item, Len) ->
- CharsSize = f(Item, Len, ST, WT),
+ CharsSize = f(Item, Len, ST, WT, PP),
{CharsSize,indent(CharsSize, Len)}
end, indent(CharSize1, I0), Items),
{CharsL,SizeL} = unz1([CharSize1|CharsSizes]),
@@ -999,26 +1028,40 @@ has_nl([C|Cs]) ->
has_nl([]) ->
false.
+write_a_char(C, PP) ->
+ flat_leaf(write_char(C, PP)).
+
-define(MIN_SUBSTRING, 5).
-write_a_string(S, I) when I < 0; S =:= [] ->
- leaf(write_string(S));
-write_a_string(S, I) ->
+write_a_string(S, I, PP) when I < 0; S =:= [] ->
+ flat_leaf(write_string(S, PP));
+write_a_string(S, I, PP) ->
Len = erlang:max(?MAXLINE-I, ?MIN_SUBSTRING),
- {list,write_a_string(S, Len, Len)}.
+ {list,write_a_string(S, Len, Len, PP)}.
-write_a_string([], _N, _Len) ->
+write_a_string([], _N, _Len, _PP) ->
[];
-write_a_string(S, N, Len) ->
+write_a_string(S, N, Len, PP) ->
SS = string:sub_string(S, 1, N),
- Sl = write_string(SS),
- case (iolist_size(Sl) > Len) and (N > ?MIN_SUBSTRING) of
+ Sl = write_string(SS, PP),
+ case (length(Sl) > Len) and (N > ?MIN_SUBSTRING) of
true ->
- write_a_string(S, N-1, Len);
+ write_a_string(S, N-1, Len, PP);
false ->
- [leaf(Sl)|write_a_string(lists:nthtail(length(SS), S), Len, Len)]
+ [flat_leaf(Sl) |
+ write_a_string(lists:nthtail(length(SS), S), Len, Len, PP)]
end.
+flat_leaf(S) ->
+ L = lists:flatten(S),
+ {leaf,length(L),L}.
+
+write_string(S, PP) ->
+ lists:flatten((PP#pp.string_fun)(S)).
+
+write_char(C, PP) ->
+ lists:flatten((PP#pp.char_fun)(C)).
+
%%
%% Utilities
%%
diff --git a/lib/stdlib/src/erl_scan.erl b/lib/stdlib/src/erl_scan.erl
index d880656565..818703284f 100644
--- a/lib/stdlib/src/erl_scan.erl
+++ b/lib/stdlib/src/erl_scan.erl
@@ -55,7 +55,14 @@
token_info/1,token_info/2,
attributes_info/1,attributes_info/2,set_attribute/3]).
--export_type([error_info/0, line/0, return_cont/0, tokens_result/0]).
+%%% Private
+-export([continuation_location/1]).
+
+-export_type([error_info/0,
+ line/0,
+ options/0,
+ return_cont/0,
+ tokens_result/0]).
%%%
%%% Defines and type definitions
@@ -74,7 +81,8 @@
-type location() :: line() | {line(),column()}.
-type resword_fun() :: fun((atom()) -> boolean()).
-type option() :: 'return' | 'return_white_spaces' | 'return_comments'
- | 'text' | {'reserved_word_fun', resword_fun()}.
+ | 'text' | {'reserved_word_fun', resword_fun()}
+ | 'unicode'.
-type options() :: option() | [option()].
-type symbol() :: atom() | float() | integer() | string().
-type info_line() :: integer() | term().
@@ -95,7 +103,8 @@
{resword_fun = fun reserved_word/1 :: resword_fun(),
ws = false :: boolean(),
comment = false :: boolean(),
- text = false :: boolean()}).
+ text = false :: boolean(),
+ unicode = false :: boolean()}).
%%----------------------------------------------------------------------------
@@ -183,6 +192,11 @@ tokens({erl_scan_continuation,Cs,Col,Toks,Line,St,Any,Fun},
CharSpec, _Loc, _Opts) ->
tokens1(Cs++CharSpec, St, Line, Col, Toks, Fun, Any).
+continuation_location({erl_scan_continuation,_,no_col,_,Line,_,_,_}) ->
+ Line;
+continuation_location({erl_scan_continuation,_,Col,_,Line,_,_,_}) ->
+ {Line,Col}.
+
-type attribute_item() :: 'column' | 'length' | 'line'
| 'location' | 'text'.
-type info_location() :: location() | term().
@@ -322,13 +336,20 @@ string_thing(_) -> "string".
(C >= $\000 andalso C =< $\s orelse C >= $\200 andalso C =< $\240)).
-define(DIGIT(C), C >= $0, C =< $9).
-define(CHAR(C), is_integer(C), C >= 0).
-
-%% A workaround: Unicode strings are not returned as strings, but as
-%% lists of integers. For instance, "b\x{aaa}c" => [98,2730,99]. This
-%% is to protect the system from character codes greater than 255. To
-%% be removed. Search for UNI to find workaround code.
+-define(UNICODE(C),
+ (C >= 0 andalso C < 16#D800 orelse
+ C > 16#DFFF andalso C < 16#FFFE orelse
+ C > 16#FFFF andalso C =< 16#10FFFF)).
+
+%% When the option 'unicode' is false: return Unicode strings as lists
+%% of integers and Unicode characters as integers. For instance,
+%% erl_scan:string("\"b\x{aaa}c\".") is equivalent to
+%% erl_scan:string("[98,2730,99]."). This is to protect the caller
+%% from character codes greater than 255. Search for UNI to find code
+%% implementing this "feature". The 'unicode' option is undocumented
+%% and will probably be removed later.
-define(NO_UNICODE, 0).
--define(UNI255(C), (C) =< 16#ff).
+-define(UNI255(C), (C =< 16#ff)).
options(Opts0) when is_list(Opts0) ->
Opts = lists:foldr(fun expand_opt/2, [], Opts0),
@@ -342,10 +363,12 @@ options(Opts0) when is_list(Opts0) ->
Comment = proplists:get_bool(return_comments, Opts),
WS = proplists:get_bool(return_white_spaces, Opts),
Txt = proplists:get_bool(text, Opts),
+ Unicode = proplists:get_bool(unicode, Opts),
#erl_scan{resword_fun = RW_fun,
comment = Comment,
ws = WS,
- text = Txt};
+ text = Txt,
+ unicode = Unicode};
options(Opt) ->
options([Opt]).
@@ -626,15 +649,12 @@ scan1([$~|Cs], St, Line, Col, Toks) ->
scan1([$&|Cs], St, Line, Col, Toks) ->
tok2(Cs, St, Line, Col, Toks, "&", '&', 1);
%% End of optimization.
-scan1([C|Cs], St, Line, Col, Toks) when ?CHAR(C) ->
+scan1([C|Cs], St, Line, Col, Toks) when ?CHAR(C), ?UNI255(C) ->
Str = [C],
- case catch list_to_atom(Str) of
- Sym when is_atom(Sym) ->
- tok2(Cs, St, Line, Col, Toks, Str, Sym, 1);
- _ ->
- Ncol = incr_column(Col, 1),
- scan_error({illegal,character}, Line, Col, Line, Ncol, Cs)
- end;
+ tok2(Cs, St, Line, Col, Toks, Str, list_to_atom(Str), 1);
+scan1([C|Cs], _St, Line, Col, _Toks) when ?CHAR(C) ->
+ Ncol = incr_column(Col, 1),
+ scan_error({illegal,character}, Line, Col, Line, Ncol, Cs);
scan1([]=Cs, _St, Line, Col, Toks) ->
{more,{Cs,Col,Toks,Line,[],fun scan/6}};
scan1(eof=Cs, _St, Line, Col, Toks) ->
@@ -832,32 +852,44 @@ scan_char([$\\|Cs]=Cs0, St, Line, Col, Toks) ->
{eof,Ncol} ->
scan_error(char, Line, Col, Line, Ncol, eof);
{nl,Val,Str,Ncs,Ncol} ->
- Attrs = attributes(Line, Col, St, "$\\"++Str),
+ Attrs = attributes(Line, Col, St, "$\\"++Str), %"
Ntoks = [{char,Attrs,Val}|Toks],
scan1(Ncs, St, Line+1, Ncol, Ntoks);
{unicode,Val,Str,Ncs,Ncol} ->
- Attrs = attributes(Line, Col, St, "$\\"++Str),
- Ntoks = [{integer,Attrs,Val}|Toks], % UNI
+ Attrs = attributes(Line, Col, St, "$\\"++Str), %"
+ Tag = char_tag(Val, St), % UNI
+ Ntoks = [{Tag,Attrs,Val}|Toks],
scan1(Ncs, St, Line, Ncol, Ntoks);
{Val,Str,Ncs,Ncol} ->
- Attrs = attributes(Line, Col, St, "$\\"++Str),
+ Attrs = attributes(Line, Col, St, "$\\"++Str), %"
Ntoks = [{char,Attrs,Val}|Toks],
scan1(Ncs, St, Line, Ncol, Ntoks)
end;
scan_char([$\n=C|Cs], St, Line, Col, Toks) ->
Attrs = attributes(Line, Col, St, [$$,C]),
scan1(Cs, St, Line+1, new_column(Col, 1), [{char,Attrs,C}|Toks]);
-scan_char([C|Cs], St, Line, Col, Toks) when ?CHAR(C) ->
- Tag = if ?UNI255(C) -> char; true -> integer end, % UNI
+scan_char([C|Cs], St, Line, Col, Toks) when ?UNICODE(C) ->
+ Tag = char_tag(C, St), % UNI
Attrs = attributes(Line, Col, St, [$$,C]),
scan1(Cs, St, Line, incr_column(Col, 2), [{Tag,Attrs,C}|Toks]);
+scan_char([C|_Cs], _St, Line, Col, _Toks) when ?CHAR(C) ->
+ scan_error({illegal,character}, Line, Col, Line, incr_column(Col, 1), eof);
scan_char([], _St, Line, Col, Toks) ->
{more,{[$$],Col,Toks,Line,[],fun scan/6}};
scan_char(eof, _St, Line, Col, _Toks) ->
scan_error(char, Line, Col, Line, incr_column(Col, 1), eof).
+-compile({inline,[char_tag/2]}).
+
+char_tag(C, _St) when ?UNI255(C) ->
+ char;
+char_tag(_C, #erl_scan{unicode = true}) ->
+ char;
+char_tag(_C, _St) ->
+ integer.
+
scan_string(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0,Uni0}) ->
- case scan_string0(Cs, St, Line, Col, $\", Str, Wcs, Uni0) of
+ case scan_string0(Cs, St, Line, Col, $\", true, Str, Wcs, Uni0) of %"
{more,Ncs,Nline,Ncol,Nstr,Nwcs,Uni} ->
State = {Nwcs,Nstr,Line0,Col0,Uni},
{more,{Ncs,Ncol,Toks,Nline,State,fun scan_string/6}};
@@ -865,8 +897,9 @@ scan_string(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0,Uni0}) ->
scan_error(Error, Nline, Ncol, Nline, EndCol, Ncs);
{error,Nline,Ncol,Nwcs,Ncs} ->
Estr = string:substr(Nwcs, 1, 16), % Expanded escape chars.
- scan_error({string,$\",Estr}, Line0, Col0, Nline, Ncol, Ncs);
- {Ncs,Nline,Ncol,Nstr,Nwcs,?NO_UNICODE} ->
+ scan_error({string,$\",Estr}, Line0, Col0, Nline, Ncol, Ncs); %"
+ {Ncs,Nline,Ncol,Nstr,Nwcs,Uni} when Uni =:= ?NO_UNICODE;
+ St#erl_scan.unicode ->
Attrs = attributes(Line0, Col0, St, Nstr),
scan1(Ncs, St, Nline, Ncol, [{string,Attrs,Nwcs}|Toks]);
{Ncs,Nline,Ncol,Nstr,_Nwcs,_Uni} ->
@@ -918,7 +951,8 @@ unicode_tokens(Line, Col, Str, Val, St, Toks, Cs, Cline, Ccol) ->
[{',',attributes(Cline, Ccol, St, "")} || Cs =/= "\""] ++ [Token|Toks].
scan_qatom(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0,Uni0}) ->
- case scan_string0(Cs, St, Line, Col, $\', Str, Wcs, Uni0) of
+ AllowUni = St#erl_scan.unicode,
+ case scan_string0(Cs, St, Line, Col, $\', AllowUni, Str, Wcs, Uni0) of %'
{more,Ncs,Nline,Ncol,Nstr,Nwcs,Uni} ->
State = {Nwcs,Nstr,Line0,Col0,Uni},
{more,{Ncs,Ncol,Toks,Nline,State,fun scan_qatom/6}};
@@ -926,8 +960,9 @@ scan_qatom(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0,Uni0}) ->
scan_error(Error, Nline, Ncol, Nline, EndCol, Ncs);
{error,Nline,Ncol,Nwcs,Ncs} ->
Estr = string:substr(Nwcs, 1, 16), % Expanded escape chars.
- scan_error({string,$\',Estr}, Line0, Col0, Nline, Ncol, Ncs);
- {Ncs,Nline,Ncol,Nstr,Nwcs,?NO_UNICODE} ->
+ scan_error({string,$\',Estr}, Line0, Col0, Nline, Ncol, Ncs); %'
+ {Ncs,Nline,Ncol,Nstr,Nwcs,Uni} ->
+ true = Uni =:= ?NO_UNICODE orelse AllowUni,
case catch list_to_atom(Nwcs) of
A when is_atom(A) ->
Attrs = attributes(Line0, Col0, St, Nstr),
@@ -937,38 +972,40 @@ scan_qatom(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0,Uni0}) ->
end
end.
-scan_string0(Cs, #erl_scan{text=false}, Line, no_col=Col, Q, [], Wcs, Uni) ->
- scan_string_no_col(Cs, Line, Col, Q, Wcs, Uni);
-scan_string0(Cs, #erl_scan{text=true}, Line, no_col=Col, Q, Str, Wcs, Uni) ->
- scan_string1(Cs, Line, Col, Q, Str, Wcs, Uni);
-scan_string0(Cs, _St, Line, Col, Q, [], Wcs, Uni) ->
- scan_string_col(Cs, Line, Col, Q, Wcs, Uni);
-scan_string0(Cs, _St, Line, Col, Q, Str, Wcs, Uni) ->
- scan_string1(Cs, Line, Col, Q, Str, Wcs, Uni).
+scan_string0(Cs, #erl_scan{text=false}, Line, no_col=Col, Q, U, [], Wcs, Uni) ->
+ scan_string_no_col(Cs, Line, Col, Q, U, Wcs, Uni);
+scan_string0(Cs, #erl_scan{text=true}, Line, no_col=Col, Q, U, Str, Wcs, Uni) ->
+ scan_string1(Cs, Line, Col, Q, U, Str, Wcs, Uni);
+scan_string0(Cs, _St, Line, Col, Q, U, [], Wcs, Uni) ->
+ scan_string_col(Cs, Line, Col, Q, U, Wcs, Uni);
+scan_string0(Cs, _St, Line, Col, Q, U, Str, Wcs, Uni) ->
+ scan_string1(Cs, Line, Col, Q, U, Str, Wcs, Uni).
%% Optimization. Col =:= no_col.
-scan_string_no_col([Q|Cs], Line, Col, Q, Wcs, Uni) ->
+scan_string_no_col([Q|Cs], Line, Col, Q, _U, Wcs, Uni) ->
{Cs,Line,Col,_DontCare=[],lists:reverse(Wcs),Uni};
-scan_string_no_col([$\n=C|Cs], Line, Col, Q, Wcs, Uni) ->
- scan_string_no_col(Cs, Line+1, Col, Q, [C|Wcs], Uni);
-scan_string_no_col([C|Cs], Line, Col, Q, Wcs, Uni) when C =/= $\\,
- ?CHAR(C), ?UNI255(C) ->
- scan_string_no_col(Cs, Line, Col, Q, [C|Wcs], Uni);
-scan_string_no_col(Cs, Line, Col, Q, Wcs, Uni) ->
- scan_string1(Cs, Line, Col, Q, Wcs, Wcs, Uni).
+scan_string_no_col([$\n=C|Cs], Line, Col, Q, U, Wcs, Uni) ->
+ scan_string_no_col(Cs, Line+1, Col, Q, U, [C|Wcs], Uni);
+scan_string_no_col([C|Cs], Line, Col, Q, U, Wcs, Uni) when C =/= $\\,
+ ?CHAR(C),
+ ?UNI255(C) ->
+ scan_string_no_col(Cs, Line, Col, Q, U, [C|Wcs], Uni);
+scan_string_no_col(Cs, Line, Col, Q, U, Wcs, Uni) ->
+ scan_string1(Cs, Line, Col, Q, U, Wcs, Wcs, Uni).
%% Optimization. Col =/= no_col.
-scan_string_col([Q|Cs], Line, Col, Q, Wcs0, Uni) ->
+scan_string_col([Q|Cs], Line, Col, Q, _U, Wcs0, Uni) ->
Wcs = lists:reverse(Wcs0),
Str = [Q|Wcs++[Q]],
{Cs,Line,Col+1,Str,Wcs,Uni};
-scan_string_col([$\n=C|Cs], Line, _xCol, Q, Wcs, Uni) ->
- scan_string_col(Cs, Line+1, 1, Q, [C|Wcs], Uni);
-scan_string_col([C|Cs], Line, Col, Q, Wcs, Uni) when C =/= $\\,
- ?CHAR(C), ?UNI255(C) ->
- scan_string_col(Cs, Line, Col+1, Q, [C|Wcs], Uni);
-scan_string_col(Cs, Line, Col, Q, Wcs, Uni) ->
- scan_string1(Cs, Line, Col, Q, Wcs, Wcs, Uni).
+scan_string_col([$\n=C|Cs], Line, _xCol, Q, U, Wcs, Uni) ->
+ scan_string_col(Cs, Line+1, 1, Q, U, [C|Wcs], Uni);
+scan_string_col([C|Cs], Line, Col, Q, U, Wcs, Uni) when C =/= $\\,
+ ?CHAR(C),
+ ?UNI255(C) ->
+ scan_string_col(Cs, Line, Col+1, Q, U, [C|Wcs], Uni);
+scan_string_col(Cs, Line, Col, Q, U, Wcs, Uni) ->
+ scan_string1(Cs, Line, Col, Q, U, Wcs, Wcs, Uni).
%% UNI_STR is to be replaced by STR when the Unicode-string-to-list
%% workaround is eventually removed.
@@ -979,14 +1016,14 @@ scan_string_col(Cs, Line, Col, Q, Wcs, Uni) ->
%% but then the end location of the error tuple would not correspond
%% to the start location of the returned Rest string. (Maybe the end
%% location could be modified, but that too is ugly.)
-scan_string1([Q|Cs], Line, Col, Q, Str0, Wcs0, Uni) ->
+scan_string1([Q|Cs], Line, Col, Q, _U, Str0, Wcs0, Uni) ->
Wcs = lists:reverse(Wcs0),
Str = ?UNI_STR(Col, [Q|lists:reverse(Str0, [Q])]),
{Cs,Line,incr_column(Col, 1),Str,Wcs,Uni};
-scan_string1([$\n=C|Cs], Line, Col, Q, Str, Wcs, Uni) ->
+scan_string1([$\n=C|Cs], Line, Col, Q, U, Str, Wcs, Uni) ->
Ncol = new_column(Col, 1),
- scan_string1(Cs, Line+1, Ncol, Q, ?UNI_STR(Col, [C|Str]), [C|Wcs], Uni);
-scan_string1([$\\|Cs]=Cs0, Line, Col, Q, Str, Wcs, Uni) ->
+ scan_string1(Cs, Line+1, Ncol, Q, U, ?UNI_STR(Col, [C|Str]), [C|Wcs], Uni);
+scan_string1([$\\|Cs]=Cs0, Line, Col, Q, U, Str, Wcs, Uni) ->
case scan_escape(Cs, Col) of
more ->
{more,Cs0,Line,Col,Str,Wcs,Uni};
@@ -997,31 +1034,33 @@ scan_string1([$\\|Cs]=Cs0, Line, Col, Q, Str, Wcs, Uni) ->
{nl,Val,ValStr,Ncs,Ncol} ->
Nstr = ?UNI_STR(Ncol, lists:reverse(ValStr, [$\\|Str])),
Nwcs = [Val|Wcs],
- scan_string1(Ncs, Line+1, Ncol, Q, Nstr, Nwcs, Uni);
- {unicode,_Val,_ValStr,Ncs,Ncol} when Q =:= $' -> %' Emacs
+ scan_string1(Ncs, Line+1, Ncol, Q, U, Nstr, Nwcs, Uni);
+ {unicode,_Val,_ValStr,Ncs,Ncol} when not U -> %' Emacs
{char_error,Ncs,{illegal,character},Line,Col,incr_column(Ncol, 1)};
{unicode,Val,ValStr,Ncs,Ncol} -> % UNI. Uni is set to Val.
Nstr = ?UNI_STR(Ncol, lists:reverse(ValStr, [$\\|Str])),
Nwcs = [Val|Wcs], % not used
- scan_string1(Ncs, Line, incr_column(Ncol, 1), Q, Nstr, Nwcs, Val);
+ scan_string1(Ncs, Line, incr_column(Ncol, 1), Q, U, Nstr, Nwcs, Val);
{Val,ValStr,Ncs,Ncol} ->
Nstr = ?UNI_STR(Ncol, lists:reverse(ValStr, [$\\|Str])),
Nwcs = [Val|Wcs],
- scan_string1(Ncs, Line, incr_column(Ncol, 1), Q, Nstr, Nwcs, Uni)
+ scan_string1(Ncs, Line, incr_column(Ncol, 1), Q, U, Nstr, Nwcs, Uni)
end;
-scan_string1([C|Cs], Line, no_col=Col, Q, Str, Wcs, Uni) when ?CHAR(C),
- ?UNI255(C) ->
- %% scan_string1(Cs, Line, Col, Q, Str, [C|Wcs], Uni);
- scan_string1(Cs, Line, Col, Q, [C|Str], [C|Wcs], Uni); % UNI
-scan_string1([C|Cs], Line, Col, Q, Str, Wcs, Uni) when ?CHAR(C), ?UNI255(C) ->
- scan_string1(Cs, Line, Col+1, Q, [C|Str], [C|Wcs], Uni);
-scan_string1([C|Cs], Line, Col, $', _Str, _Wcs, _Uni) when ?CHAR(C) -> %' UNI
+scan_string1([C|Cs], Line, no_col=Col, Q, U, Str, Wcs, Uni) when ?CHAR(C),
+ ?UNI255(C) ->
+ %% scan_string1(Cs, Line, Col, Q, U, Str, [C|Wcs], Uni);
+ scan_string1(Cs, Line, Col, Q, U, [C|Str], [C|Wcs], Uni); % UNI
+scan_string1([C|Cs], Line, Col, Q, U, Str, Wcs, Uni) when ?CHAR(C), ?UNI255(C) ->
+ scan_string1(Cs, Line, Col+1, Q, U, [C|Str], [C|Wcs], Uni);
+scan_string1([C|Cs], Line, Col, _Q, false, _Str, _Wcs, _Uni) when ?CHAR(C) -> %' UNI
{char_error,Cs,{illegal,character},Line,Col,incr_column(Col, 1)};
-scan_string1([C|Cs], Line, Col, Q, Str, Wcs, _Uni) when ?CHAR(C) -> % UNI
- scan_string1(Cs, Line, incr_column(Col, 1), Q, [C|Str], [C|Wcs], C);
-scan_string1([]=Cs, Line, Col, _Q, Str, Wcs, Uni) ->
+scan_string1([C|Cs], Line, Col, Q, U, Str, Wcs, _Uni) when ?UNICODE(C) ->
+ scan_string1(Cs, Line, incr_column(Col, 1), Q, U, [C|Str], [C|Wcs], C);
+scan_string1([C|Cs], Line, Col, _Q, _U, _Str, _Wcs, _Uni) when ?CHAR(C) -> % UNI
+ {char_error,Cs,{illegal,character},Line,Col,incr_column(Col, 1)};
+scan_string1([]=Cs, Line, Col, _Q, _U, Str, Wcs, Uni) ->
{more,Cs,Line,Col,Str,Wcs,Uni};
-scan_string1(eof, Line, Col, _Q, _Str, Wcs, _Uni) ->
+scan_string1(eof, Line, Col, _Q, _U, _Str, Wcs, _Uni) ->
{error,Line,Col,lists:reverse(Wcs),eof}.
-define(OCT(C), C >= $0, C =< $7).
@@ -1072,8 +1111,10 @@ scan_escape([$\n=C|Cs], Col) ->
scan_escape([C0|Cs], Col) when ?CHAR(C0), ?UNI255(C0) ->
C = escape_char(C0),
{C,?UNI_STR(Col, [C0]),Cs,incr_column(Col, 1)};
-scan_escape([C|Cs], Col) when ?CHAR(C) -> % UNI
+scan_escape([C|Cs], Col) when ?UNICODE(C) ->
{unicode,C,?UNI_STR(Col, [C]),Cs,incr_column(Col, 1)};
+scan_escape([C|Cs], Col) when ?CHAR(C) -> % UNI
+ {error,Cs,{illegal,character},incr_column(Col, 1)};
scan_escape([], _Col) ->
more;
scan_escape(eof, Col) ->
@@ -1091,7 +1132,7 @@ scan_esc_end([$}|Cs], Col, Wcs0, B, Str0) ->
case catch erlang:list_to_integer(Wcs, B) of
Val when Val =< 16#FF ->
{Val,?UNI_STR(Col, Str0++Wcs++[$}]),Cs,incr_column(Col, 1)};
- Val when Val =< 16#10FFFF ->
+ Val when ?UNICODE(Val) ->
{unicode,Val,?UNI_STR(Col, Str0++Wcs++[$}]),Cs,incr_column(Col,1)};
_ ->
{error,Cs,{illegal,character},incr_column(Col, 1)}
@@ -1197,18 +1238,36 @@ float_end(Cs, St, Line, Col, Toks, Ncs0) ->
scan_error({illegal,float}, Line, Col, Line, Ncol, Cs)
end.
-skip_comment([C|Cs], St, Line, Col, Toks, N) when C =/= $\n, ?CHAR(C) ->
- skip_comment(Cs, St, Line, Col, Toks, N+1);
-skip_comment([]=Cs, _St, Line, Col, Toks, N) ->
- {more,{Cs,Col,Toks,Line,N,fun skip_comment/6}};
skip_comment(Cs, St, Line, Col, Toks, N) ->
+ skip_comment(Cs, St, Line, Col, Toks, N, St#erl_scan.unicode).
+
+skip_comment([C|Cs], St, Line, Col, Toks, N, U) when C =/= $\n, ?CHAR(C) ->
+ case ?UNI255(C) orelse U andalso ?UNICODE(C) of
+ true ->
+ skip_comment(Cs, St, Line, Col, Toks, N+1, U);
+ false ->
+ Ncol = incr_column(Col, N+1),
+ scan_error({illegal,character}, Line, Col, Line, Ncol, Cs)
+ end;
+skip_comment([]=Cs, _St, Line, Col, Toks, N, _U) ->
+ {more,{Cs,Col,Toks,Line,N,fun skip_comment/6}};
+skip_comment(Cs, St, Line, Col, Toks, N, _U) ->
scan1(Cs, St, Line, incr_column(Col, N), Toks).
-scan_comment([C|Cs], St, Line, Col, Toks, Ncs) when C =/= $\n, ?CHAR(C) ->
- scan_comment(Cs, St, Line, Col, Toks, [C|Ncs]);
-scan_comment([]=Cs, _St, Line, Col, Toks, Ncs) ->
+scan_comment(Cs, St, Line, Col, Toks, Ncs) ->
+ scan_comment(Cs, St, Line, Col, Toks, Ncs, St#erl_scan.unicode).
+
+scan_comment([C|Cs], St, Line, Col, Toks, Ncs, U) when C =/= $\n, ?CHAR(C) ->
+ case ?UNI255(C) orelse U andalso ?UNICODE(C) of
+ true ->
+ scan_comment(Cs, St, Line, Col, Toks, [C|Ncs], U);
+ false ->
+ Ncol = incr_column(Col, length(Ncs)+1),
+ scan_error({illegal,character}, Line, Col, Line, Ncol, Cs)
+ end;
+scan_comment([]=Cs, _St, Line, Col, Toks, Ncs, _U) ->
{more,{Cs,Col,Toks,Line,Ncs,fun scan_comment/6}};
-scan_comment(Cs, St, Line, Col, Toks, Ncs0) ->
+scan_comment(Cs, St, Line, Col, Toks, Ncs0, _U) ->
Ncs = lists:reverse(Ncs0),
tok3(Cs, St, Line, Col, Toks, comment, Ncs, Ncs).
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl
index 498d850df3..99a9d138ac 100644
--- a/lib/stdlib/src/escript.erl
+++ b/lib/stdlib/src/escript.erl
@@ -710,7 +710,7 @@ epp_parse_file2(Epp, S, Forms, Parsed) ->
epp_parse_file(Epp, S, [Form | Forms])
end;
{error,{Ln,Mod,Args}} = Form ->
- io:format("~s:~w: ~s\n",
+ io:format("~s:~w: ~ts\n",
[S#state.file,Ln,Mod:format_error(Args)]),
epp_parse_file(Epp, S#state{n_errors = S#state.n_errors + 1}, [Form | Forms]);
{eof, _LastLine} = Eof ->
@@ -780,10 +780,10 @@ report_errors(Errors) ->
Errors).
list_errors(F, [{Line,Mod,E}|Es]) ->
- io:fwrite("~s:~w: ~s\n", [F,Line,Mod:format_error(E)]),
+ io:fwrite("~s:~w: ~ts\n", [F,Line,Mod:format_error(E)]),
list_errors(F, Es);
list_errors(F, [{Mod,E}|Es]) ->
- io:fwrite("~s: ~s\n", [F,Mod:format_error(E)]),
+ io:fwrite("~s: ~ts\n", [F,Mod:format_error(E)]),
list_errors(F, Es);
list_errors(_F, []) -> ok.
@@ -795,10 +795,10 @@ report_warnings(Ws0) ->
lists:foreach(fun({_,Str}) -> io:put_chars(Str) end, Ws).
format_message(F, [{Line,Mod,E}|Es]) ->
- M = {{F,Line},io_lib:format("~s:~w: Warning: ~s\n", [F,Line,Mod:format_error(E)])},
+ M = {{F,Line},io_lib:format("~s:~w: Warning: ~ts\n", [F,Line,Mod:format_error(E)])},
[M|format_message(F, Es)];
format_message(F, [{Mod,E}|Es]) ->
- M = {none,io_lib:format("~s: Warning: ~s\n", [F,Mod:format_error(E)])},
+ M = {none,io_lib:format("~s: Warning: ~ts\n", [F,Mod:format_error(E)])},
[M|format_message(F, Es)];
format_message(_, []) -> [].
@@ -851,12 +851,27 @@ eval_exprs([E|Es], Bs0, Lf, Ef, RBs) ->
eval_exprs(Es, Bs, Lf, Ef, RBs).
format_exception(Class, Reason) ->
+ Enc = encoding(),
+ P = case Enc of
+ latin1 -> "P";
+ _ -> "tP"
+ end,
PF = fun(Term, I) ->
- io_lib:format("~." ++ integer_to_list(I) ++ "P", [Term, 50])
+ io_lib:format("~." ++ integer_to_list(I) ++ P, [Term, 50])
end,
StackTrace = erlang:get_stacktrace(),
StackFun = fun(M, _F, _A) -> (M =:= erl_eval) or (M =:= ?MODULE) end,
- lib:format_exception(1, Class, Reason, StackTrace, StackFun, PF).
+ lib:format_exception(1, Class, Reason, StackTrace, StackFun, PF, Enc).
+
+encoding() ->
+ [{encoding, Encoding}] = enc(),
+ Encoding.
+
+enc() ->
+ case lists:keyfind(encoding, 1, io:getopts()) of
+ false -> [{encoding,latin1}]; % should never happen
+ Enc -> [Enc]
+ end.
fatal(Str) ->
throw(Str).
diff --git a/lib/stdlib/src/io.erl b/lib/stdlib/src/io.erl
index 9f65bbfa3a..2644083733 100644
--- a/lib/stdlib/src/io.erl
+++ b/lib/stdlib/src/io.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -22,14 +22,15 @@
get_chars/2,get_chars/3,get_line/1,get_line/2,
get_password/0, get_password/1,
setopts/1, setopts/2, getopts/0, getopts/1]).
--export([write/1,write/2,read/1,read/2,read/3]).
+-export([write/1,write/2,read/1,read/2,read/3,read/4]).
-export([columns/0,columns/1,rows/0,rows/1]).
-export([fwrite/1,fwrite/2,fwrite/3,fread/2,fread/3,
format/1,format/2,format/3]).
--export([scan_erl_exprs/1,scan_erl_exprs/2,scan_erl_exprs/3,
- scan_erl_form/1,scan_erl_form/2,scan_erl_form/3,
+-export([scan_erl_exprs/1,scan_erl_exprs/2,scan_erl_exprs/3,scan_erl_exprs/4,
+ scan_erl_form/1,scan_erl_form/2,scan_erl_form/3,scan_erl_form/4,
parse_erl_exprs/1,parse_erl_exprs/2,parse_erl_exprs/3,
- parse_erl_form/1,parse_erl_form/2,parse_erl_form/3]).
+ parse_erl_exprs/4,parse_erl_form/1,parse_erl_form/2,
+ parse_erl_form/3,parse_erl_form/4]).
-export([request/1,request/2,requests/1,requests/2]).
-export_type([device/0, format/0]).
@@ -256,8 +257,21 @@ read(Io, Prompt) ->
| {'eof', EndLine :: line()}
| {'error', ErrorInfo :: erl_scan:error_info(), ErrorLine :: line()}.
-read(Io, Prompt, StartLine) when is_integer(StartLine) ->
- case request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[StartLine]}) of
+read(Io, Prompt, Pos0) ->
+ read(Io, Prompt, Pos0, []).
+
+-spec read(IoDevice, Prompt, StartLine, Options) -> Result when
+ IoDevice :: device(),
+ Prompt :: prompt(),
+ StartLine :: line(),
+ Options :: erl_scan:options(),
+ Result :: {'ok', Term :: term(), EndLine :: line()}
+ | {'eof', EndLine :: line()}
+ | {'error', ErrorInfo :: erl_scan:error_info(), ErrorLine :: line()}.
+
+read(Io, Prompt, Pos0, Options) when is_integer(Pos0), is_list(Options) ->
+ Args = [Pos0,Options],
+ case request(Io, {get_until,unicode,Prompt,erl_scan,tokens,Args}) of
{ok,Toks,EndLine} ->
case erl_parse:parse_term(Toks) of
{ok,Term} -> {ok,Term,EndLine};
@@ -368,7 +382,17 @@ scan_erl_exprs(Io, Prompt) ->
Result :: erl_scan:tokens_result() | request_error().
scan_erl_exprs(Io, Prompt, Pos0) ->
- request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0]}).
+ scan_erl_exprs(Io, Prompt, Pos0, []).
+
+-spec scan_erl_exprs(Device, Prompt, StartLine, Options) -> Result when
+ Device :: device(),
+ Prompt :: prompt(),
+ StartLine :: line(),
+ Options :: erl_scan:options(),
+ Result :: erl_scan:tokens_result() | request_error().
+
+scan_erl_exprs(Io, Prompt, Pos0, Options) ->
+ request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0,Options]}).
-spec scan_erl_form(Prompt) -> Result when
Prompt :: prompt(),
@@ -392,7 +416,17 @@ scan_erl_form(Io, Prompt) ->
Result :: erl_scan:tokens_result() | request_error().
scan_erl_form(Io, Prompt, Pos0) ->
- request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0]}).
+ scan_erl_form(Io, Prompt, Pos0, []).
+
+-spec scan_erl_form(IoDevice, Prompt, StartLine, Options) -> Result when
+ IoDevice :: device(),
+ Prompt :: prompt(),
+ StartLine :: line(),
+ Options :: erl_scan:options(),
+ Result :: erl_scan:tokens_result() | request_error().
+
+scan_erl_form(Io, Prompt, Pos0, Options) ->
+ request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0,Options]}).
%% Parsing Erlang code.
@@ -423,7 +457,17 @@ parse_erl_exprs(Io, Prompt) ->
Result :: parse_ret().
parse_erl_exprs(Io, Prompt, Pos0) ->
- case request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0]}) of
+ parse_erl_exprs(Io, Prompt, Pos0, []).
+
+-spec parse_erl_exprs(IoDevice, Prompt, StartLine, Options) -> Result when
+ IoDevice :: device(),
+ Prompt :: prompt(),
+ StartLine :: line(),
+ Options :: erl_scan:options(),
+ Result :: parse_ret().
+
+parse_erl_exprs(Io, Prompt, Pos0, Options) ->
+ case request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0,Options]}) of
{ok,Toks,EndPos} ->
case erl_parse:parse_exprs(Toks) of
{ok,Exprs} -> {ok,Exprs,EndPos};
@@ -460,7 +504,18 @@ parse_erl_form(Io, Prompt) ->
Result :: parse_form_ret().
parse_erl_form(Io, Prompt, Pos0) ->
- case request(Io, {get_until,unicode,Prompt,erl_scan,tokens,[Pos0]}) of
+ parse_erl_form(Io, Prompt, Pos0, []).
+
+-spec parse_erl_form(IoDevice, Prompt, StartLine, Options) -> Result when
+ IoDevice :: device(),
+ Prompt :: prompt(),
+ StartLine :: line(),
+ Options :: erl_scan:options(),
+ Result :: parse_form_ret().
+
+parse_erl_form(Io, Prompt, Pos0, Options) ->
+ Args = [Pos0, Options],
+ case request(Io, {get_until,unicode,Prompt,erl_scan,tokens,Args}) of
{ok,Toks,EndPos} ->
case erl_parse:parse_form(Toks) of
{ok,Exprs} -> {ok,Exprs,EndPos};
diff --git a/lib/stdlib/src/io_lib.erl b/lib/stdlib/src/io_lib.erl
index 513d904c39..5f57a2fa42 100644
--- a/lib/stdlib/src/io_lib.erl
+++ b/lib/stdlib/src/io_lib.erl
@@ -64,7 +64,10 @@
-export([write/1,write/2,write/3,nl/0,format_prompt/1]).
-export([write_atom/1,write_string/1,write_string/2,write_unicode_string/1,
- write_unicode_string/2, write_char/1, write_unicode_char/1]).
+ write_unicode_string/2, write_char/1, write_unicode_char/1]).
+
+-export([write_unicode_string_as_latin1/1, write_unicode_string_as_latin1/2,
+ write_unicode_char_as_latin1/1]).
-export([quote_atom/2, char_list/1, unicode_char_list/1,
deep_char_list/1, deep_unicode_char_list/1,
@@ -75,11 +78,13 @@
collect_line/2, collect_line/3, collect_line/4,
get_until/3, get_until/4]).
--export_type([chars/0, continuation/0]).
+-export_type([chars/0, unicode_chars/0, unicode_string/0, continuation/0]).
%%----------------------------------------------------------------------
-type chars() :: [char() | chars()].
+-type unicode_chars() :: [unicode:unicode_char() | unicode_chars()].
+-type unicode_string() :: [unicode:unicode_char()].
-type depth() :: -1 | non_neg_integer().
-opaque continuation() :: {Format :: string(),
@@ -330,11 +335,32 @@ write_string(S) ->
write_string(S, Q) ->
[Q|write_string1(latin1, S, Q)].
+%%% There are two functions to write Unicode strings:
+%%% - they both escape control characters < 160;
+%%% - write_unicode_string() never escapes characters >= 160;
+%%% - write_unicode_string_as_latin1() also escapes characters >= 255.
+
+-spec write_unicode_string(UnicodeString) -> unicode_string() when
+ UnicodeString :: unicode_string().
+
write_unicode_string(S) ->
write_unicode_string(S, $"). %"
+-spec write_unicode_string(unicode_string(), char()) -> unicode_string().
+
write_unicode_string(S, Q) ->
- [Q|write_string1(unicode, S, Q)].
+ [Q|write_string1(unicode_as_unicode, S, Q)].
+
+-spec write_unicode_string_as_latin1(UnicodeString) -> string() when
+ UnicodeString :: unicode_string().
+
+write_unicode_string_as_latin1(S) ->
+ write_unicode_string_as_latin1(S, $"). %"
+
+-spec write_unicode_string_as_latin1(unicode_string(), char()) -> string().
+
+write_unicode_string_as_latin1(S, Q) ->
+ [Q|write_string1(unicode_as_latin1, S, Q)].
write_string1(_,[], Q) ->
[Q];
@@ -347,7 +373,11 @@ string_char(_,C, _, Tail) when C >= $\s, C =< $~ ->
[C|Tail];
string_char(latin1,C, _, Tail) when C >= $\240, C =< $\377 ->
[C|Tail];
-string_char(unicode,C, _, Tail) when C >= $\240 ->
+string_char(unicode_as_unicode,C, _, Tail) when C >= $\240 ->
+ [C|Tail];
+string_char(unicode_as_latin1,C, _, Tail) when C >= $\240, C =< $\377 ->
+ [C|Tail];
+string_char(unicode_as_latin1,C, _, Tail) when C >= $\377 ->
"\\x{"++erlang:integer_to_list(C, 16)++"}"++Tail;
string_char(_,$\n, _, Tail) -> [$\\,$n|Tail]; %\n = LF
string_char(_,$\r, _, Tail) -> [$\\,$r|Tail]; %\r = CR
@@ -374,10 +404,22 @@ write_char($\s) -> "$\\s"; %Must special case this.
write_char(C) when is_integer(C), C >= $\000, C =< $\377 ->
[$$|string_char(latin1,C, -1, [])].
-write_unicode_char(Ch) when Ch =< 255 ->
- write_char(Ch);
-write_unicode_char(Uni) ->
- [$$|string_char(unicode,Uni, -1, [])].
+%%% There are two functions to write a Unicode character:
+%%% - they both escape control characters < 160;
+%%% - write_unicode_char() never escapes characters >= 160;
+%%% - write_unicode_char_as_latin1() also escapes characters >= 255.
+
+-spec write_unicode_char(UnicodeChar) -> unicode_string() when
+ UnicodeChar :: unicode:unicode_char().
+
+write_unicode_char(Uni) when is_integer(Uni), Uni >= $\000 ->
+ [$$|string_char(unicode_as_unicode,Uni, -1, [])].
+
+-spec write_unicode_char_as_latin1(UnicodeChar) -> string() when
+ UnicodeChar :: unicode:unicode_char().
+
+write_unicode_char_as_latin1(Uni) when is_integer(Uni), Uni >= $\000 ->
+ [$$|string_char(unicode_as_latin1,Uni, -1, [])].
%% char_list(CharList)
%% deep_char_list(CharList)
@@ -392,7 +434,8 @@ char_list([C|Cs]) when is_integer(C), C >= $\000, C =< $\377 ->
char_list([]) -> true;
char_list(_) -> false. %Everything else is false
--spec unicode_char_list(term()) -> boolean().
+-spec unicode_char_list(Term) -> boolean() when
+ Term :: term().
unicode_char_list([C|Cs]) when is_integer(C), C >= 0, C < 16#D800;
is_integer(C), C > 16#DFFF, C < 16#FFFE;
@@ -417,7 +460,8 @@ deep_char_list([], []) -> true;
deep_char_list(_, _More) -> %Everything else is false
false.
--spec deep_unicode_char_list(term()) -> boolean().
+-spec deep_unicode_char_list(Term) -> boolean() when
+ Term :: term().
deep_unicode_char_list(Cs) ->
deep_unicode_char_list(Cs, []).
@@ -462,7 +506,8 @@ printable_list(_) -> false. %Everything else is false
%% Everything that is not a control character and not invalid unicode
%% will be considered printable.
--spec printable_unicode_list(term()) -> boolean().
+-spec printable_unicode_list(Term) -> boolean() when
+ Term :: term().
printable_unicode_list([C|Cs]) when is_integer(C), C >= $\040, C =< $\176 ->
printable_unicode_list(Cs);
diff --git a/lib/stdlib/src/io_lib_format.erl b/lib/stdlib/src/io_lib_format.erl
index 49a00a4ec7..5680f83ab6 100644
--- a/lib/stdlib/src/io_lib_format.erl
+++ b/lib/stdlib/src/io_lib_format.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -22,7 +22,7 @@
-export([fwrite/2,fwrite_g/1,indentation/2]).
-%% fwrite(Format, ArgList) -> [Char].
+%% fwrite(Format, ArgList) -> [unicode:unicode:char()].
%% Format the arguments in ArgList after string Format. Just generate
%% an error if there is an error in the arguments.
%%
@@ -133,7 +133,7 @@ pcount([{$P,_As,_F,_Ad,_P,_Pad,_Enc}|Cs], Acc) -> pcount(Cs, Acc+1);
pcount([_|Cs], Acc) -> pcount(Cs, Acc);
pcount([], Acc) -> Acc.
-%% build([Control], Pc, Indentation) -> [Char].
+%% build([Control], Pc, Indentation) -> [unicode:unicode_char()].
%% Interpret the control structures. Count the number of print
%% remaining and only calculate indentation when necessary. Must also
%% be smart when calculating indentation for characters in format.
@@ -154,7 +154,7 @@ decr_pc($p, Pc) -> Pc - 1;
decr_pc($P, Pc) -> Pc - 1;
decr_pc(_, Pc) -> Pc.
-%% indentation([Char], Indentation) -> Indentation.
+%% indentation([unicode:unicode_char()], Indentation) -> Indentation.
%% Calculate the indentation of the end of a string given its start
%% indentation. We assume tabs at 8 cols.
@@ -167,19 +167,19 @@ indentation([C|Cs], I) ->
indentation([], I) -> I.
%% control(FormatChar, [Argument], FieldWidth, Adjust, Precision, PadChar,
-%% Indentation) ->
-%% [Char]
+%% Encoding, Indentation) ->
+%% [unicode:unicode_char()]
%% This is the main dispatch function for the various formatting commands.
%% Field widths and precisions have already been calculated.
control($w, [A], F, Adj, P, Pad, _Enc,_I) ->
term(io_lib:write(A, -1), F, Adj, P, Pad);
-control($p, [A], F, Adj, P, Pad, _Enc, I) ->
- print(A, -1, F, Adj, P, Pad, I);
+control($p, [A], F, Adj, P, Pad, Enc, I) ->
+ print(A, -1, F, Adj, P, Pad, Enc, I);
control($W, [A,Depth], F, Adj, P, Pad, _Enc, _I) when is_integer(Depth) ->
term(io_lib:write(A, Depth), F, Adj, P, Pad);
-control($P, [A,Depth], F, Adj, P, Pad, _Enc, I) when is_integer(Depth) ->
- print(A, Depth, F, Adj, P, Pad, I);
+control($P, [A,Depth], F, Adj, P, Pad, Enc, I) when is_integer(Depth) ->
+ print(A, Depth, F, Adj, P, Pad, Enc, I);
control($s, [A], F, Adj, P, Pad, _Enc, _I) when is_atom(A) ->
string(atom_to_list(A), F, Adj, P, Pad);
control($s, [L0], F, Adj, P, Pad, latin1, _I) ->
@@ -187,6 +187,7 @@ control($s, [L0], F, Adj, P, Pad, latin1, _I) ->
string(L, F, Adj, P, Pad);
control($s, [L0], F, Adj, P, Pad, unicode, _I) ->
L = unicode:characters_to_list(L0),
+ true = is_list(L),
uniconv(string(L, F, Adj, P, Pad));
control($e, [A], F, Adj, P, Pad, _Enc, _I) when is_float(A) ->
fwrite_e(A, F, Adj, P, Pad);
@@ -256,13 +257,17 @@ term(T, F, Adj, P0, Pad) ->
adjust(T, chars(Pad, F-L), Adj)
end.
-%% print(Term, Depth, Field, Adjust, Precision, PadChar, Indentation)
+%% print(Term, Depth, Field, Adjust, Precision, PadChar, Encoding,
+%% Indentation)
%% Print a term.
-print(T, D, none, Adj, P, Pad, I) -> print(T, D, 80, Adj, P, Pad, I);
-print(T, D, F, Adj, none, Pad, I) -> print(T, D, F, Adj, I+1, Pad, I);
-print(T, D, F, right, P, _Pad, _I) ->
- io_lib_pretty:print(T, P, F, D).
+print(T, D, none, Adj, P, Pad, E, I) -> print(T, D, 80, Adj, P, Pad, E, I);
+print(T, D, F, Adj, none, Pad, E, I) -> print(T, D, F, Adj, I+1, Pad, E, I);
+print(T, D, F, right, P, _Pad, latin1, _I) ->
+ io_lib_pretty:print(T, P, F, D);
+print(T, D, F, right, P, _Pad, Enc, _I) ->
+ Options = [{column, P}, {line_length, F}, {depth, D}, {encoding, Enc}],
+ io_lib_pretty:print(T, Options).
%% fwrite_e(Float, Field, Adjust, Precision, PadChar)
@@ -608,7 +613,7 @@ prefixed_integer(Int, F, Adj, Base, Pad, Prefix, Lowercase)
term([Prefix|S], F, Adj, none, Pad)
end.
-%% char(Char, Field, Adjust, Precision, PadChar) -> [Char].
+%% char(Char, Field, Adjust, Precision, PadChar) -> [unicode:unicode_char()].
char(C, none, _Adj, none, _Pad) -> [C];
char(C, F, _Adj, none, _Pad) -> chars(C, F);
diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl
index 169410796b..99ad281a9b 100644
--- a/lib/stdlib/src/io_lib_pretty.erl
+++ b/lib/stdlib/src/io_lib_pretty.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -33,43 +33,76 @@
%% print(Term, Column, LineLength, Depth) -> [Chars]
%% Depth = -1 gives unlimited print depth. Use io_lib:write for atomic terms.
+-spec print(term()) -> io_lib:chars().
+
print(Term) ->
print(Term, 1, 80, -1).
%% print(Term, RecDefFun) -> [Chars]
%% print(Term, Depth, RecDefFun) -> [Chars]
%% RecDefFun = fun(Tag, NoFields) -> [FieldTag] | no
-%% Used by the shell for printing records.
+%% Used by the shell for printing records and for Unicode.
+
+-type rec_print_fun() :: fun((Tag :: atom(), NFields :: non_neg_integer()) ->
+ no | [FieldName :: atom()]).
+-type column() :: integer().
+-type line_length() :: pos_integer().
+-type depth() :: integer().
+-type max_chars() :: integer().
+
+-type chars() :: io_lib:chars().
+-type unicode_chars() :: io_lib:unicode_chars().
+-type option() :: {column, column()}
+ | {line_length, line_length()}
+ | {depth, depth()}
+ | {max_chars, max_chars()}
+ | {record_print_fun, rec_print_fun()}
+ | {encoding, latin1 | utf8 | unicode}.
+-type options() :: [option()].
+
+-spec print(term(), rec_print_fun()) -> chars() | unicode_chars();
+ (term(), options()) -> chars() | unicode_chars().
+
+print(Term, Options) when is_list(Options) ->
+ Col = proplists:get_value(column, Options, 1),
+ Ll = proplists:get_value(line_length, Options, 80),
+ D = proplists:get_value(depth, Options, -1),
+ M = proplists:get_value(max_chars, Options, -1),
+ RecDefFun = proplists:get_value(record_print_fun, Options, no_fun),
+ Encoding = proplists:get_value(encoding, Options, epp:default_encoding()),
+ print(Term, Col, Ll, D, M, RecDefFun, Encoding);
print(Term, RecDefFun) ->
print(Term, -1, RecDefFun).
+-spec print(term(), depth(), rec_print_fun()) -> chars() | unicode_chars().
+
print(Term, Depth, RecDefFun) ->
print(Term, 1, 80, Depth, RecDefFun).
+-spec print(term(), column(), line_length(), depth()) ->
+ chars() | unicode_chars().
+
print(Term, Col, Ll, D) ->
- print(Term, Col, Ll, D, _M=-1, no_fun).
+ print(Term, Col, Ll, D, _M=-1, no_fun, latin1).
+-spec print(term(), column(), line_length(), depth(), rec_print_fun()) ->
+ chars() | unicode_chars().
print(Term, Col, Ll, D, RecDefFun) ->
print(Term, Col, Ll, D, _M=-1, RecDefFun).
-print(_, _, _, 0, _M, _RF) -> "...";
-print(Term, Col, Ll, D, M, RecDefFun) when Col =< 0 ->
- print(Term, 1, Ll, D, M, RecDefFun);
-print(Term, Col, Ll, D, M0, RecDefFun) when is_tuple(Term);
- is_list(Term) ->
- If = {_S, Len} = print_length(Term, D, RecDefFun),
- M = max_cs(M0, Len),
- if
- Len < Ll - Col, Len =< M ->
- write(If);
- true ->
- TInd = while_fail([-1, 4],
- fun(I) -> cind(If, Col, Ll, M, I, 0, 0) end,
- 1),
- pp(If, Col, Ll, M, TInd, indent(Col), 0, 0)
- end;
-print(<<_/bitstring>>=Term, Col, Ll, D, M0, RecDefFun) ->
- If = {_S, Len} = print_length(Term, D, RecDefFun),
+-spec print(term(), column(), line_length(), depth(), max_chars(),
+ rec_print_fun()) -> chars() | unicode_chars().
+
+print(Term, Col, Ll, D, M, RecDefFun) ->
+ print(Term, Col, Ll, D, M, RecDefFun, latin1).
+
+print(_, _, _, 0, _M, _RF, _Enc) -> "...";
+print(Term, Col, Ll, D, M, RecDefFun, Enc) when Col =< 0 ->
+ print(Term, 1, Ll, D, M, RecDefFun, Enc);
+print(Term, Col, Ll, D, M0, RecDefFun, Enc) when is_tuple(Term);
+ is_list(Term);
+ is_bitstring(Term) ->
+ If = {_S, Len} = print_length(Term, D, RecDefFun, Enc),
M = max_cs(M0, Len),
if
Len < Ll - Col, Len =< M ->
@@ -80,7 +113,7 @@ print(<<_/bitstring>>=Term, Col, Ll, D, M0, RecDefFun) ->
1),
pp(If, Col, Ll, M, TInd, indent(Col), 0, 0)
end;
-print(Term, _Col, _Ll, _D, _M, _RF) ->
+print(Term, _Col, _Ll, _D, _M, _RF, _Enc) ->
io_lib:write(Term).
%%%
@@ -294,50 +327,56 @@ write_tail(E, S) ->
%% counted but need to be added later.
%% D =/= 0
-print_length([], _D, _RF) ->
+print_length([], _D, _RF, _Enc) ->
{"[]", 2};
-print_length({}, _D, _RF) ->
+print_length({}, _D, _RF, _Enc) ->
{"{}", 2};
-print_length(List, D, RF) when is_list(List) ->
- case printable_list(List, D) of
+print_length(List, D, RF, Enc) when is_list(List) ->
+ case printable_list(List, D, Enc) of
true ->
- S = io_lib:write_string(List, $"), %"
+ S = write_string(List, Enc),
{S, length(S)};
%% Truncated lists could break some existing code.
% {true, Prefix} ->
- % S = io_lib:write_string(Prefix, $"), %"
+ % S = write_string(Prefix, Enc),
% {[S | "..."], 3 + length(S)};
false ->
- print_length_list(List, D, RF)
+ print_length_list(List, D, RF, Enc)
end;
-print_length(Fun, _D, _RF) when is_function(Fun) ->
+print_length(Fun, _D, _RF, _Enc) when is_function(Fun) ->
S = io_lib:write(Fun),
{S, iolist_size(S)};
-print_length(R, D, RF) when is_atom(element(1, R)),
- is_function(RF) ->
+print_length(R, D, RF, Enc) when is_atom(element(1, R)),
+ is_function(RF) ->
case RF(element(1, R), tuple_size(R) - 1) of
no ->
- print_length_tuple(R, D, RF);
+ print_length_tuple(R, D, RF, Enc);
RDefs ->
- print_length_record(R, D, RF, RDefs)
+ print_length_record(R, D, RF, RDefs, Enc)
end;
-print_length(Tuple, D, RF) when is_tuple(Tuple) ->
- print_length_tuple(Tuple, D, RF);
-print_length(<<>>, _D, _RF) ->
+print_length(Tuple, D, RF, Enc) when is_tuple(Tuple) ->
+ print_length_tuple(Tuple, D, RF, Enc);
+print_length(<<>>, _D, _RF, _Enc) ->
{"<<>>", 4};
-print_length(<<_/bitstring>>, 1, _RF) ->
+print_length(<<_/bitstring>>, 1, _RF, _Enc) ->
{"<<...>>", 7};
-print_length(<<_/bitstring>>=Bin, D, _RF) ->
+print_length(<<_/bitstring>>=Bin, D, _RF, Enc) ->
case bit_size(Bin) rem 8 of
0 ->
D1 = D - 1,
- case printable_bin(Bin, D1) of
- List when is_list(List) ->
- S = io_lib:write_string(List, $"),
+ case printable_bin(Bin, D1, Enc) of
+ {true, List} when is_list(List) ->
+ S = io_lib:write_string(List, $"), %"
{[$<,$<,S,$>,$>], 4 + length(S)};
- {true, Prefix} ->
- S = io_lib:write_string(Prefix, $"),
- {[$<,$<, S | "...>>"], 4 + length(S)};
+ {false, List} when is_list(List) ->
+ S = io_lib:write_unicode_string(List, $"), %"
+ {[$<,$<,S,"/utf8>>"], 9 + length(S)};
+ {true, true, Prefix} ->
+ S = io_lib:write_string(Prefix, $"), %"
+ {[$<,$<, S | "...>>"], 7 + length(S)};
+ {false, true, Prefix} ->
+ S = io_lib:write_unicode_string(Prefix, $"), %"
+ {[$<,$<, S | "/utf8...>>"], 12 + length(S)};
false ->
S = io_lib:write(Bin, D),
{{bin,S}, iolist_size(S)}
@@ -346,51 +385,51 @@ print_length(<<_/bitstring>>=Bin, D, _RF) ->
S = io_lib:write(Bin, D),
{{bin,S}, iolist_size(S)}
end;
-print_length(Term, _D, _RF) ->
+print_length(Term, _D, _RF, _Enc) ->
S = io_lib:write(Term),
{S, iolist_size(S)}.
-print_length_tuple(_Tuple, 1, _RF) ->
+print_length_tuple(_Tuple, 1, _RF, _Enc) ->
{"{...}", 5};
-print_length_tuple(Tuple, D, RF) ->
- L = print_length_list1(tuple_to_list(Tuple), D, RF),
+print_length_tuple(Tuple, D, RF, Enc) ->
+ L = print_length_list1(tuple_to_list(Tuple), D, RF, Enc),
IsTagged = is_atom(element(1, Tuple)) and (tuple_size(Tuple) > 1),
{{tuple,IsTagged,L}, list_length(L, 2)}.
-print_length_record(_Tuple, 1, _RF, _RDefs) ->
+print_length_record(_Tuple, 1, _RF, _RDefs, _Enc) ->
{"{...}", 5};
-print_length_record(Tuple, D, RF, RDefs) ->
+print_length_record(Tuple, D, RF, RDefs, Enc) ->
Name = [$# | io_lib:write_atom(element(1, Tuple))],
NameL = length(Name),
- L = print_length_fields(RDefs, D - 1, tl(tuple_to_list(Tuple)), RF),
+ L = print_length_fields(RDefs, D - 1, tl(tuple_to_list(Tuple)), RF, Enc),
{{record, [{Name,NameL} | L]}, list_length(L, NameL + 2)}.
-print_length_fields([], _D, [], _RF) ->
+print_length_fields([], _D, [], _RF, _Enc) ->
[];
-print_length_fields(_, 1, _, _RF) ->
+print_length_fields(_, 1, _, _RF, _Enc) ->
{dots, 3};
-print_length_fields([Def | Defs], D, [E | Es], RF) ->
- [print_length_field(Def, D - 1, E, RF) |
- print_length_fields(Defs, D - 1, Es, RF)].
+print_length_fields([Def | Defs], D, [E | Es], RF, Enc) ->
+ [print_length_field(Def, D - 1, E, RF, Enc) |
+ print_length_fields(Defs, D - 1, Es, RF, Enc)].
-print_length_field(Def, D, E, RF) ->
+print_length_field(Def, D, E, RF, Enc) ->
Name = io_lib:write_atom(Def),
- {S, L} = print_length(E, D, RF),
+ {S, L} = print_length(E, D, RF, Enc),
NameL = length(Name) + 3,
{{field, Name, NameL, {S, L}}, NameL + L}.
-print_length_list(List, D, RF) ->
- L = print_length_list1(List, D, RF),
+print_length_list(List, D, RF, Enc) ->
+ L = print_length_list1(List, D, RF, Enc),
{{list, L}, list_length(L, 2)}.
-print_length_list1([], _D, _RF) ->
+print_length_list1([], _D, _RF, _Enc) ->
[];
-print_length_list1(_, 1, _RF) ->
+print_length_list1(_, 1, _RF, _Enc) ->
{dots, 3};
-print_length_list1([E | Es], D, RF) ->
- [print_length(E, D - 1, RF) | print_length_list1(Es, D - 1, RF)];
-print_length_list1(E, D, RF) ->
- print_length(E, D - 1, RF).
+print_length_list1([E | Es], D, RF, Enc) ->
+ [print_length(E, D - 1, RF, Enc) | print_length_list1(Es, D - 1, RF, Enc)];
+print_length_list1(E, D, RF, Enc) ->
+ print_length(E, D - 1, RF, Enc).
list_length([], Acc) ->
Acc;
@@ -409,16 +448,16 @@ list_length_tail({_, Len}, Acc) ->
%% ?CHARS printable characters has depth 1.
-define(CHARS, 4).
-printable_list(L, D) when D < 0 ->
- io_lib:printable_list(L);
-printable_list(_L, 1) ->
+printable_list(_L, 1, _Enc) ->
false;
-printable_list(L, _D) ->
- io_lib:printable_list(L).
+printable_list(L, _D, latin1) ->
+ io_lib:printable_list(L);
+printable_list(L, _D, _Uni) ->
+ io_lib:printable_unicode_list(L).
%% Truncated lists could break some existing code.
-% printable_list(L, D) ->
+% printable_list(L, D, Enc) when D >= 0 ->
% Len = ?CHARS * (D - 1),
-% case printable_list1(L, Len) of
+% case printable_list1(L, Len, Enc) of
% all ->
% true;
% N when is_integer(N), Len - N >= D - 1 ->
@@ -428,32 +467,41 @@ printable_list(L, _D) ->
% false
% end.
-printable_bin(Bin, D) when D >= 0, ?CHARS * D =< byte_size(Bin) ->
- printable_bin(Bin, erlang:min(?CHARS * D, byte_size(Bin)), D);
-printable_bin(Bin, D) ->
- printable_bin(Bin, byte_size(Bin), D).
+printable_bin(Bin, D, Enc) when D >= 0, ?CHARS * D =< byte_size(Bin) ->
+ printable_bin(Bin, erlang:min(?CHARS * D, byte_size(Bin)), D, Enc);
+printable_bin(Bin, D, Enc) ->
+ printable_bin(Bin, byte_size(Bin), D, Enc).
-printable_bin(Bin, Len, D) ->
+printable_bin(Bin, Len, D, latin1) ->
N = erlang:min(20, Len),
L = binary_to_list(Bin, 1, N),
case printable_list1(L, N) of
all when N =:= byte_size(Bin) ->
- L;
- all when N =:= Len -> % N < byte_size(Bin)
{true, L};
+ all when N =:= Len -> % N < byte_size(Bin)
+ {true, true, L};
all ->
case printable_bin1(Bin, 1 + N, Len - N) of
0 when byte_size(Bin) =:= Len ->
- binary_to_list(Bin);
+ {true, binary_to_list(Bin)};
NC when D > 0, Len - NC >= D ->
- {true, binary_to_list(Bin, 1, Len - NC)};
+ {true, true, binary_to_list(Bin, 1, Len - NC)};
NC when is_integer(NC) ->
false
end;
NC when is_integer(NC), D > 0, N - NC >= D ->
- {true, binary_to_list(Bin, 1, N - NC)};
+ {true, true, binary_to_list(Bin, 1, N - NC)};
NC when is_integer(NC) ->
false
+ end;
+printable_bin(Bin, Len, D, _Uni) ->
+ case printable_unicode(Bin, Len, []) of
+ {_, <<>>, L} ->
+ {byte_size(Bin) =:= length(L), L};
+ {NC, Bin1, L} when D > 0, Len - NC >= D ->
+ {byte_size(Bin)-byte_size(Bin1) =:= length(L), true, L};
+ {_NC, _Bin, _L} ->
+ false
end.
printable_bin1(_Bin, _Start, 0) ->
@@ -484,6 +532,16 @@ printable_list1([$\e | Cs], N) -> printable_list1(Cs, N - 1);
printable_list1([], _) -> all;
printable_list1(_, N) -> N.
+printable_unicode(<<C/utf8, R/binary>>, I, L) when I > 0 ->
+ printable_unicode(R, I - 1, [C | L]);
+printable_unicode(Bin, I, L) ->
+ {I, Bin, lists:reverse(L)}.
+
+write_string(S, latin1) ->
+ io_lib:write_string(S, $"); %"
+write_string(S, _Uni) ->
+ io_lib:write_unicode_string(S, $"). %"
+
%% Throw 'no_good' if the indentation exceeds half the line length
%% unless there is room for M characters on the line.
diff --git a/lib/stdlib/src/lib.erl b/lib/stdlib/src/lib.erl
index cf4b87d7eb..b2ce2a5a8f 100644
--- a/lib/stdlib/src/lib.erl
+++ b/lib/stdlib/src/lib.erl
@@ -21,8 +21,9 @@
-export([flush_receive/0, error_message/2, progname/0, nonl/1, send/2,
sendw/2, eval_str/1]).
--export([format_exception/6, format_stacktrace/4,
- format_call/4, format_fun/1]).
+-export([format_exception/6, format_exception/7,
+ format_stacktrace/4, format_stacktrace/5,
+ format_call/4, format_call/5, format_fun/1]).
-spec flush_receive() -> 'ok'.
@@ -128,32 +129,49 @@ all_white(_) -> false.
%% as indentation whenever newline has been inserted);
%% Class, Reason and StackTrace are the exception;
%% FormatFun = fun(Term, I) -> iolist() formats terms;
-%% StackFun = fun(Mod, Fun, Arity) -> bool() is used for trimming the
+%% StackFun = fun(Mod, Fun, Arity) -> boolean() is used for trimming the
%% end of the stack (typically calls to erl_eval are skipped).
-format_exception(I, Class, Reason, StackTrace, StackFun, FormatFun)
+format_exception(I, Class, Reason, StackTrace, StackFun, FormatFun) ->
+ format_exception(I, Class, Reason, StackTrace, StackFun, FormatFun,
+ latin1).
+
+%% -> iolist() | unicode:charlist() (no \n at end)
+%% FormatFun = fun(Term, I) -> iolist() | unicode:charlist().
+format_exception(I, Class, Reason, StackTrace, StackFun, FormatFun, Encoding)
when is_integer(I), I >= 1, is_function(StackFun, 3),
is_function(FormatFun, 2) ->
S = n_spaces(I-1),
{Term,Trace1,Trace} = analyze_exception(Class, Reason, StackTrace),
- Expl0 = explain_reason(Term, Class, Trace1, FormatFun, S),
- Expl = io_lib:fwrite(<<"~s~s">>, [exited(Class), Expl0]),
- case format_stacktrace1(S, Trace, FormatFun, StackFun) of
+ Expl0 = explain_reason(Term, Class, Trace1, FormatFun, S, Encoding),
+ FormatString = case Encoding of
+ latin1 -> "~s~s";
+ _ -> "~s~ts"
+ end,
+ Expl = io_lib:fwrite(FormatString, [exited(Class), Expl0]),
+ case format_stacktrace1(S, Trace, FormatFun, StackFun, Encoding) of
[] -> Expl;
Stack -> [Expl, $\n, Stack]
end.
%% -> iolist() (no \n at end)
-format_stacktrace(I, StackTrace, StackFun, FormatFun)
+format_stacktrace(I, StackTrace, StackFun, FormatFun) ->
+ format_stacktrace(I, StackTrace, StackFun, FormatFun, latin1).
+
+%% -> iolist() | unicode:charlist() (no \n at end)
+format_stacktrace(I, StackTrace, StackFun, FormatFun, Encoding)
when is_integer(I), I >= 1, is_function(StackFun, 3),
is_function(FormatFun, 2) ->
S = n_spaces(I-1),
- format_stacktrace1(S, StackTrace, FormatFun, StackFun).
+ format_stacktrace1(S, StackTrace, FormatFun, StackFun, Encoding).
%% -> iolist() (no \n at end)
-format_call(I, ForMForFun, As, FormatFun) when is_integer(I), I >= 1,
- is_list(As),
- is_function(FormatFun, 2) ->
- format_call("", n_spaces(I-1), ForMForFun, As, FormatFun).
+format_call(I, ForMForFun, As, FormatFun) ->
+ format_call(I, ForMForFun, As, FormatFun, latin1).
+
+%% -> iolist() | unicode:charlist() (no \n at end)
+format_call(I, ForMForFun, As, FormatFun, Enc)
+ when is_integer(I), I >= 1, is_list(As), is_function(FormatFun, 2) ->
+ format_call("", n_spaces(I-1), ForMForFun, As, FormatFun, Enc).
%% -> iolist() (no \n at end)
format_fun(Fun) when is_function(Fun) ->
@@ -204,79 +222,80 @@ is_stacktrace(_) ->
false.
%% ERTS exit codes (some of them are also returned by erl_eval):
-explain_reason(badarg, error, [], _PF, _S) ->
+explain_reason(badarg, error, [], _PF, _S, _Enc) ->
<<"bad argument">>;
-explain_reason({badarg,V}, error=Cl, [], PF, S) -> % orelse, andalso
+explain_reason({badarg,V}, error=Cl, [], PF, S, _Enc) -> % orelse, andalso
format_value(V, <<"bad argument: ">>, Cl, PF, S);
-explain_reason(badarith, error, [], _PF, _S) ->
+explain_reason(badarith, error, [], _PF, _S, _Enc) ->
<<"an error occurred when evaluating an arithmetic expression">>;
-explain_reason({badarity,{Fun,As}}, error, [], _PF, _S)
+explain_reason({badarity,{Fun,As}}, error, [], _PF, _S, _Enc)
when is_function(Fun) ->
%% Only the arity is displayed, not the arguments As.
io_lib:fwrite(<<"~s called with ~s">>,
[format_fun(Fun), argss(length(As))]);
-explain_reason({badfun,Term}, error=Cl, [], PF, S) ->
+explain_reason({badfun,Term}, error=Cl, [], PF, S, _Enc) ->
format_value(Term, <<"bad function ">>, Cl, PF, S);
-explain_reason({badmatch,Term}, error=Cl, [], PF, S) ->
- format_value(Term, <<"no match of right hand side value ">>, Cl, PF, S);
-explain_reason({case_clause,V}, error=Cl, [], PF, S) ->
+explain_reason({badmatch,Term}, error=Cl, [], PF, S, _Enc) ->
+ Str = <<"no match of right hand side value ">>,
+ format_value(Term, Str, Cl, PF, S);
+explain_reason({case_clause,V}, error=Cl, [], PF, S, _Enc) ->
%% "there is no case clause with a true guard sequence and a
%% pattern matching..."
format_value(V, <<"no case clause matching ">>, Cl, PF, S);
-explain_reason(function_clause, error, [{F,A}], _PF, _S) ->
+explain_reason(function_clause, error, [{F,A}], _PF, _S, _Enc) ->
%% Shell commands
FAs = io_lib:fwrite(<<"~w/~w">>, [F, A]),
[<<"no function clause matching call to ">> | FAs];
-explain_reason(function_clause, error=Cl, [{M,F,As,Loc}], PF, S) ->
+explain_reason(function_clause, error=Cl, [{M,F,As,Loc}], PF, S, Enc) ->
Str = <<"no function clause matching ">>,
- [format_errstr_call(Str, Cl, {M,F}, As, PF, S),$\s|location(Loc)];
-explain_reason(if_clause, error, [], _PF, _S) ->
+ [format_errstr_call(Str, Cl, {M,F}, As, PF, S, Enc),$\s|location(Loc)];
+explain_reason(if_clause, error, [], _PF, _S, _Enc) ->
<<"no true branch found when evaluating an if expression">>;
-explain_reason(noproc, error, [], _PF, _S) ->
+explain_reason(noproc, error, [], _PF, _S, _Enc) ->
<<"no such process or port">>;
-explain_reason(notalive, error, [], _PF, _S) ->
+explain_reason(notalive, error, [], _PF, _S, _Enc) ->
<<"the node cannot be part of a distributed system">>;
-explain_reason(system_limit, error, [], _PF, _S) ->
+explain_reason(system_limit, error, [], _PF, _S, _Enc) ->
<<"a system limit has been reached">>;
-explain_reason(timeout_value, error, [], _PF, _S) ->
+explain_reason(timeout_value, error, [], _PF, _S, _Enc) ->
<<"bad receive timeout value">>;
-explain_reason({try_clause,V}, error=Cl, [], PF, S) ->
+explain_reason({try_clause,V}, error=Cl, [], PF, S, _Enc) ->
%% "there is no try clause with a true guard sequence and a
%% pattern matching..."
format_value(V, <<"no try clause matching ">>, Cl, PF, S);
-explain_reason(undef, error, [{M,F,A,_}], _PF, _S) ->
+explain_reason(undef, error, [{M,F,A,_}], _PF, _S, _Enc) ->
%% Only the arity is displayed, not the arguments, if there are any.
io_lib:fwrite(<<"undefined function ~s">>,
[mfa_to_string(M, F, n_args(A))]);
-explain_reason({shell_undef,F,A,_}, error, [], _PF, _S) ->
+explain_reason({shell_undef,F,A,_}, error, [], _PF, _S, _Enc) ->
%% Give nicer reports for undefined shell functions
%% (but not when the user actively calls shell_default:F(...)).
io_lib:fwrite(<<"undefined shell command ~s/~w">>, [F, n_args(A)]);
%% Exit codes returned by erl_eval only:
-explain_reason({argument_limit,_Fun}, error, [], _PF, _S) ->
+explain_reason({argument_limit,_Fun}, error, [], _PF, _S, _Enc) ->
io_lib:fwrite(<<"limit of number of arguments to interpreted function"
" exceeded">>, []);
-explain_reason({bad_filter,V}, error=Cl, [], PF, S) ->
+explain_reason({bad_filter,V}, error=Cl, [], PF, S, _Enc) ->
format_value(V, <<"bad filter ">>, Cl, PF, S);
-explain_reason({bad_generator,V}, error=Cl, [], PF, S) ->
+explain_reason({bad_generator,V}, error=Cl, [], PF, S, _Enc) ->
format_value(V, <<"bad generator ">>, Cl, PF, S);
-explain_reason({unbound,V}, error, [], _PF, _S) ->
+explain_reason({unbound,V}, error, [], _PF, _S, _Enc) ->
io_lib:fwrite(<<"variable ~w is unbound">>, [V]);
%% Exit codes local to the shell module (restricted shell):
-explain_reason({restricted_shell_bad_return, V}, exit=Cl, [], PF, S) ->
+explain_reason({restricted_shell_bad_return, V}, exit=Cl, [], PF, S, _Enc) ->
Str = <<"restricted shell module returned bad value ">>,
format_value(V, Str, Cl, PF, S);
explain_reason({restricted_shell_disallowed,{ForMF,As}},
- exit=Cl, [], PF, S) ->
+ exit=Cl, [], PF, S, Enc) ->
%% ForMF can be a fun, but not a shell fun.
Str = <<"restricted shell does not allow ">>,
- format_errstr_call(Str, Cl, ForMF, As, PF, S);
-explain_reason(restricted_shell_started, exit, [], _PF, _S) ->
+ format_errstr_call(Str, Cl, ForMF, As, PF, S, Enc);
+explain_reason(restricted_shell_started, exit, [], _PF, _S, _Enc) ->
<<"restricted shell starts now">>;
-explain_reason(restricted_shell_stopped, exit, [], _PF, _S) ->
+explain_reason(restricted_shell_stopped, exit, [], _PF, _S, _Enc) ->
<<"restricted shell stopped">>;
%% Other exit code:
-explain_reason(Reason, Class, [], PF, S) ->
+explain_reason(Reason, Class, [], PF, S, _Enc) ->
PF(Reason, (iolist_size(S)+1) + exited_size(Class)).
n_args(A) when is_integer(A) ->
@@ -293,28 +312,28 @@ argss(2) ->
argss(I) ->
io_lib:fwrite(<<"~w arguments">>, [I]).
-format_stacktrace1(S0, Stack0, PF, SF) ->
+format_stacktrace1(S0, Stack0, PF, SF, Enc) ->
Stack1 = lists:dropwhile(fun({M,F,A,_}) -> SF(M, F, A)
end, lists:reverse(Stack0)),
S = [" " | S0],
Stack = lists:reverse(Stack1),
- format_stacktrace2(S, Stack, 1, PF).
+ format_stacktrace2(S, Stack, 1, PF, Enc).
-format_stacktrace2(S, [{M,F,A,L}|Fs], N, PF) when is_integer(A) ->
+format_stacktrace2(S, [{M,F,A,L}|Fs], N, PF, Enc) when is_integer(A) ->
[io_lib:fwrite(<<"~s~s ~s ~s">>,
[sep(N, S), origin(N, M, F, A),
mfa_to_string(M, F, A),
location(L)])
- | format_stacktrace2(S, Fs, N + 1, PF)];
-format_stacktrace2(S, [{M,F,As,_}|Fs], N, PF) when is_list(As) ->
+ | format_stacktrace2(S, Fs, N + 1, PF, Enc)];
+format_stacktrace2(S, [{M,F,As,_}|Fs], N, PF, Enc) when is_list(As) ->
A = length(As),
CalledAs = [S,<<" called as ">>],
- C = format_call("", CalledAs, {M,F}, As, PF),
- [io_lib:fwrite(<<"~s~s ~s\n~s~s">>,
+ C = format_call("", CalledAs, {M,F}, As, PF, Enc),
+ [io_lib:fwrite(<<"~s~s ~s\n~s~ts">>,
[sep(N, S), origin(N, M, F, A), mfa_to_string(M, F, A),
CalledAs, C])
- | format_stacktrace2(S, Fs, N + 1, PF)];
-format_stacktrace2(_S, [], _N, _PF) ->
+ | format_stacktrace2(S, Fs, N + 1, PF, Enc)];
+format_stacktrace2(_S, [], _N, _PF, _Enc) ->
"".
location(L) ->
@@ -338,22 +357,22 @@ origin(1, M, F, A) ->
origin(_N, _M, _F, _A) ->
<<"in call from">>.
-format_errstr_call(ErrStr, Class, ForMForFun, As, PF, Pre0) ->
+format_errstr_call(ErrStr, Class, ForMForFun, As, PF, Pre0, Enc) ->
Pre1 = [Pre0 | n_spaces(exited_size(Class))],
- format_call(ErrStr, Pre1, ForMForFun, As, PF).
+ format_call(ErrStr, Pre1, ForMForFun, As, PF, Enc).
-format_call(ErrStr, Pre1, ForMForFun, As, PF) ->
+format_call(ErrStr, Pre1, ForMForFun, As, PF, Enc) ->
Arity = length(As),
[ErrStr |
case is_op(ForMForFun, Arity) of
{yes,Op} ->
- format_op(ErrStr, Pre1, Op, As, PF);
+ format_op(ErrStr, Pre1, Op, As, PF, Enc);
no ->
MFs = mf_to_string(ForMForFun, Arity),
I1 = iolist_size([Pre1,ErrStr|MFs]),
- S1 = pp_arguments(PF, As, I1),
- S2 = pp_arguments(PF, As, iolist_size([Pre1|MFs])),
- Long = count_nl(pp_arguments(PF, [a2345,b2345], I1)) > 0,
+ S1 = pp_arguments(PF, As, I1, Enc),
+ S2 = pp_arguments(PF, As, iolist_size([Pre1|MFs]), Enc),
+ Long = count_nl(pp_arguments(PF, [a2345,b2345], I1, Enc)) > 0,
case Long or (count_nl(S2) < count_nl(S1)) of
true ->
[$\n, Pre1, MFs, S2];
@@ -362,11 +381,11 @@ format_call(ErrStr, Pre1, ForMForFun, As, PF) ->
end
end].
-format_op(ErrStr, Pre, Op, [A1], PF) ->
+format_op(ErrStr, Pre, Op, [A1], PF, _Enc) ->
OpS = io_lib:fwrite(<<"~s ">>, [Op]),
I1 = iolist_size([ErrStr,Pre,OpS]),
[OpS | PF(A1, I1+1)];
-format_op(ErrStr, Pre, Op, [A1, A2], PF) ->
+format_op(ErrStr, Pre, Op, [A1, A2], PF, Enc) ->
I1 = iolist_size([ErrStr,Pre]),
S1 = PF(A1, I1+1),
S2 = PF(A2, I1+1),
@@ -377,33 +396,40 @@ format_op(ErrStr, Pre, Op, [A1, A2], PF) ->
[S1,Pre1,OpS,Pre1|S2];
false ->
OpS2 = io_lib:fwrite(<<" ~s ">>, [Op]),
- S2_2 = PF(A2, iolist_size([ErrStr,Pre,S1|OpS2])+1),
+ Size1 = iolist_size([ErrStr,Pre|OpS2]),
+ {Size2,S1_2} = size(Enc, S1),
+ S2_2 = PF(A2, Size1+Size2+1),
case count_nl(S2) < count_nl(S2_2) of
true ->
- [S1,Pre1,OpS,Pre1|S2];
+ [S1_2,Pre1,OpS,Pre1|S2];
false ->
- [S1,OpS2|S2_2]
+ [S1_2,OpS2|S2_2]
end
end.
-pp_arguments(PF, As, I) ->
- case {As, io_lib:printable_list(As)} of
+pp_arguments(PF, As, I, Enc) ->
+ case {As, printable_list(Enc, As)} of
{[Int | T], true} ->
L = integer_to_list(Int),
Ll = length(L),
A = list_to_atom(lists:duplicate(Ll, $a)),
- S0 = binary_to_list(iolist_to_binary(PF([A | T], I+1))),
- brackets_to_parens([$[,L,string:sub_string(S0, 2+Ll)]);
+ S0 = unicode:characters_to_list(PF([A | T], I+1), Enc),
+ brackets_to_parens([$[,L,string:sub_string(S0, 2+Ll)], Enc);
_ ->
- brackets_to_parens(PF(As, I+1))
+ brackets_to_parens(PF(As, I+1), Enc)
end.
-brackets_to_parens(S) ->
- B = iolist_to_binary(S),
+brackets_to_parens(S, Enc) ->
+ B = unicode:characters_to_binary(S, Enc),
Sz = byte_size(B) - 2,
<<$[,R:Sz/binary,$]>> = B,
[$(,R,$)].
+printable_list(latin1, As) ->
+ io_lib:printable_list(As);
+printable_list(_, As) ->
+ io_lib:printable_unicode_list(As).
+
mfa_to_string(M, F, A) ->
io_lib:fwrite(<<"~s/~w">>, [mf_to_string({M, F}, A), A]).
@@ -472,3 +498,10 @@ exited(exit) ->
<<"exception exit: ">>;
exited(throw) ->
<<"exception throw: ">>.
+
+size(latin1, S) ->
+ {iolist_size(S),S};
+size(_, S0) ->
+ S = unicode:characters_to_list(S0, unicode),
+ true = is_list(S),
+ {length(S),S}.
diff --git a/lib/stdlib/src/shell.erl b/lib/stdlib/src/shell.erl
index dc450f0ee6..424650b8b3 100644
--- a/lib/stdlib/src/shell.erl
+++ b/lib/stdlib/src/shell.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -128,7 +128,7 @@ start_restricted(RShMod) when is_atom(RShMod) ->
error_logger:error_report(
lists:flatten(
io_lib:fwrite(
- <<"Restricted shell module ~w not found: ~p\n">>,
+ "Restricted shell module ~w not found: ~"++cs_p() ++"\n",
[RShMod,What]))),
Error
end.
@@ -192,7 +192,6 @@ server(StartSync) ->
end,
Bs0, default_packages()),
default_modules()),
- %% io:fwrite("Imported modules: ~p.\n", [erl_eval:bindings(Bs)]),
%% Use an Ets table for record definitions. It takes too long to
%% send a huge term to and from the evaluator. Ets makes it
@@ -230,9 +229,10 @@ server(StartSync) ->
ok;
{RShMod2,What2} ->
io:fwrite(
- <<"Warning! Restricted shell module ~w not found: ~p.\n"
- "Only the commands q() and init:stop() will be allowed!\n">>,
- [RShMod2,What2]),
+ ("Warning! Restricted shell module ~w not found: ~"
+ ++cs_p()++".\n"
+ "Only the commands q() and init:stop() will be allowed!\n"),
+ [RShMod2,What2]),
application:set_env(stdlib, restricted_shell, ?MODULE)
end,
@@ -263,11 +263,11 @@ server_loop(N0, Eval_0, Bs00, RT, Ds00, History0, Results0) ->
end,
server_loop(N, Eval, Bs, RT, Ds, History, Results);
{error,E} ->
- fwrite_severity(benign, <<"~s">>, [E]),
+ fwrite_severity(benign, <<"~ts">>, [E]),
server_loop(N0, Eval0, Bs0, RT, Ds0, History0, Results0)
end;
{error,{Line,Mod,What},_EndLine} ->
- fwrite_severity(benign, <<"~w: ~s">>,
+ fwrite_severity(benign, <<"~w: ~ts">>,
[Line, Mod:format_error(What)]),
server_loop(N0, Eval0, Bs0, RT, Ds0, History0, Results0);
{error,terminated} -> %Io process terminated
@@ -277,7 +277,7 @@ server_loop(N0, Eval_0, Bs00, RT, Ds00, History0, Results0) ->
exit(Eval0, kill),
{_,Eval,_,_} = shell_rep(Eval0, Bs0, RT, Ds0),
server_loop(N0, Eval, Bs0, RT, Ds0, History0, Results0);
- {error,tokens} -> %Most probably unicode > 255
+ {error,tokens} -> %Most probably character > 255
fwrite_severity(benign, <<"~w: Invalid tokens.">>,
[N]),
server_loop(N0, Eval0, Bs0, RT, Ds0, History0, Results0);
@@ -290,7 +290,10 @@ server_loop(N0, Eval_0, Bs00, RT, Ds00, History0, Results0) ->
end.
get_command(Prompt, Eval, Bs, RT, Ds) ->
- Parse = fun() -> exit(io:parse_erl_exprs(Prompt)) end,
+ Parse =
+ fun() ->
+ exit(io:parse_erl_exprs(group_leader(), Prompt, 1, [unicode]))
+ end,
Pid = spawn_link(Parse),
get_command1(Pid, Eval, Bs, RT, Ds).
@@ -337,7 +340,7 @@ get_prompt_func() ->
end.
bad_prompt_func(M) ->
- fwrite_severity(benign, <<"Bad prompt function: ~p">>, [M]).
+ fwrite_severity(benign, "Bad prompt function: ~"++cs_p(), [M]).
default_prompt(N) ->
%% Don't bother flattening the list irrespective of what the
@@ -453,7 +456,8 @@ expand_bin_elements([{bin_element,L,E,Sz,Ts}|Fs], C) ->
no_command(N) ->
throw({error,
- io_lib:fwrite(<<"~s: command not found">>, [erl_pp:expr(N)])}).
+ io_lib:fwrite(<<"~ts: command not found">>,
+ [erl_pp:expr(N, enc())])}).
%% add_cmd(Number, Expressions, Value)
%% get_cmd(Number, CurrentCommand)
@@ -518,7 +522,7 @@ shell_rep(Ev, Bs0, RT, Ds0) ->
{shell_rep,Ev,{value,V,Bs,Ds}} ->
{V,Ev,Bs,Ds};
{shell_rep,Ev,{command_error,{Line,M,Error}}} ->
- fwrite_severity(benign, <<"~w: ~s">>,
+ fwrite_severity(benign, <<"~w: ~ts">>,
[Line, M:format_error(Error)]),
{{'EXIT',Error},Ev,Bs0,Ds0};
{shell_req,Ev,get_cmd} ->
@@ -570,9 +574,10 @@ report_exception(Class, Severity, {Reason,Stacktrace}, RT) ->
I = iolist_size(Tag) + 1,
PF = fun(Term, I1) -> pp(Term, I1, RT) end,
SF = fun(M, _F, _A) -> (M =:= erl_eval) or (M =:= ?MODULE) end,
- io:requests([{put_chars, Tag},
- {put_chars,
- lib:format_exception(I, Class, Reason, Stacktrace, SF, PF)},
+ Enc = encoding(),
+ Str = lib:format_exception(I, Class, Reason, Stacktrace, SF, PF, Enc),
+ io:requests([{put_chars, latin1, Tag},
+ {put_chars, unicode, Str},
nl]).
start_eval(Bs, RT, Ds) ->
@@ -671,7 +676,8 @@ exprs([E0|Es], Bs1, RT, Lf, Ef, Bs0, W) ->
if
Es =:= [] ->
VS = pp(V0, 1, RT),
- [io:requests([{put_chars, VS}, nl]) || W =:= cmd],
+ [io:requests([{put_chars, unicode, VS}, nl]) ||
+ W =:= cmd],
%% Don't send the result back if it will be
%% discarded anyway.
V = if
@@ -753,7 +759,7 @@ used_records(E) ->
{expr, E}.
fwrite_severity(Severity, S, As) ->
- io:fwrite(<<"~s\n">>, [format_severity(Severity, S, As)]).
+ io:fwrite(<<"~ts\n">>, [format_severity(Severity, S, As)]).
format_severity(Severity, S, As) ->
add_severity(Severity, io_lib:fwrite(S, As)).
@@ -958,13 +964,13 @@ local_func(rd, [{atom,_,RecName},RecDef0], Bs, _Shell, RT, _Lf, _Ef) ->
RecDef = expand_value(RecDef0),
RDs = lists:flatten(erl_pp:expr(RecDef)),
Attr = lists:concat(["-record('", RecName, "',", RDs, ")."]),
- {ok, Tokens, _} = erl_scan:string(Attr),
+ {ok, Tokens, _} = erl_scan:string(Attr, 1, [unicode]),
case erl_parse:parse_form(Tokens) of
{ok,AttrForm} ->
[RN] = add_records([AttrForm], Bs, RT),
{value,RN,Bs};
{error,{_Line,M,ErrDesc}} ->
- ErrStr = io_lib:fwrite(<<"~s">>, [M:format_error(ErrDesc)]),
+ ErrStr = io_lib:fwrite(<<"~ts">>, [M:format_error(ErrDesc)]),
exit(lists:flatten(ErrStr))
end;
local_func(rd, [_,_], _Bs, _Shell, _RT, _Lf, _Ef) ->
@@ -988,11 +994,13 @@ local_func(rl, [A], Bs0, _Shell, RT, Lf, Ef) ->
{value,list_records(record_defs(RT, listify(Recs))),Bs};
local_func(rp, [A], Bs0, _Shell, RT, Lf, Ef) ->
{[V],Bs} = expr_list([A], Bs0, Lf, Ef),
- W = columns(),
- io:requests([{put_chars,
- io_lib_pretty:print(V, 1, W, -1, ?CHAR_MAX,
- record_print_fun(RT))},
- nl]),
+ Cs = io_lib_pretty:print(V, ([{column, 1},
+ {line_length, columns()},
+ {depth, -1},
+ {max_chars, ?CHAR_MAX},
+ {record_print_fun, record_print_fun(RT)}]
+ ++ enc())),
+ io:requests([{put_chars, unicode, Cs}, nl]),
{value,ok,Bs};
local_func(rr, [A], Bs0, _Shell, RT, Lf, Ef) ->
{[File],Bs} = expr_list([A], Bs0, Lf, Ef),
@@ -1166,7 +1174,7 @@ add_records(RAs, Bs0, RT) ->
case check_command([], Bs1) of
{error,{_Line,M,ErrDesc}} ->
%% A source file that has not been compiled.
- ErrStr = io_lib:fwrite(<<"~s">>, [M:format_error(ErrDesc)]),
+ ErrStr = io_lib:fwrite(<<"~ts">>, [M:format_error(ErrDesc)]),
exit(lists:flatten(ErrStr));
ok ->
true = ets:insert(RT, Recs),
@@ -1343,25 +1351,25 @@ list_commands([{{N,command},Es0}, {{N,result}, V} |Ds], RT) ->
VS = pp(V, 4, RT),
Ns = io_lib:fwrite(<<"~w: ">>, [N]),
I = iolist_size(Ns),
- io:requests([{put_chars, Ns},
- {format,<<"~s\n">>,[erl_pp:exprs(Es, I, none)]},
+ io:requests([{put_chars, latin1, Ns},
+ {format,<<"~ts\n">>,[erl_pp:exprs(Es, I, enc())]},
{format,<<"-> ">>,[]},
- {put_chars, VS},
+ {put_chars, unicode, VS},
nl]),
list_commands(Ds, RT);
list_commands([{{N,command},Es0} |Ds], RT) ->
Es = prep_list_commands(Es0),
Ns = io_lib:fwrite(<<"~w: ">>, [N]),
I = iolist_size(Ns),
- io:requests([{put_chars, Ns},
- {format,<<"~s\n">>,[erl_pp:exprs(Es, I, none)]}]),
+ io:requests([{put_chars, latin1, Ns},
+ {format,<<"~ts\n">>,[erl_pp:exprs(Es, I, enc())]}]),
list_commands(Ds, RT);
list_commands([_D|Ds], RT) ->
list_commands(Ds, RT);
list_commands([], _RT) -> ok.
list_bindings([{{module,M},Val}|Bs], RT) ->
- io:fwrite(<<"~p is ~p\n">>, [M,Val]),
+ io:fwrite(<<"~w is ~w\n">>, [M,Val]),
list_bindings(Bs, RT);
list_bindings([{Name,Val}|Bs], RT) ->
case erl_eval:fun_data(Val) of
@@ -1369,13 +1377,13 @@ list_bindings([{Name,Val}|Bs], RT) ->
FCs = expand_value(FCs0), % looks nicer
F = {'fun',0,{clauses,FCs}},
M = {match,0,{var,0,Name},F},
- io:fwrite(<<"~s\n">>, [erl_pp:expr(M)]);
+ io:fwrite(<<"~ts\n">>, [erl_pp:expr(M, enc())]);
false ->
Namel = io_lib:fwrite(<<"~s = ">>, [Name]),
Nl = iolist_size(Namel)+1,
ValS = pp(Val, Nl, RT),
- io:requests([{put_chars, Namel},
- {put_chars, ValS},
+ io:requests([{put_chars, latin1, Namel},
+ {put_chars, unicode, ValS},
nl])
end,
list_bindings(Bs, RT);
@@ -1384,7 +1392,7 @@ list_bindings([], _RT) ->
list_records(Records) ->
lists:foreach(fun({_Name,Attr}) ->
- io:fwrite(<<"~s">>, [erl_pp:attribute(Attr)])
+ io:fwrite(<<"~ts">>, [erl_pp:attribute(Attr, enc())])
end, Records).
record_defs(RT, Names) ->
@@ -1427,8 +1435,20 @@ get_history_and_results() ->
{History, erlang:min(Results, History)}.
pp(V, I, RT) ->
- io_lib_pretty:print(V, I, columns(), ?LINEMAX, ?CHAR_MAX,
- record_print_fun(RT)).
+ pp(V, I, RT, enc()).
+
+pp(V, I, RT, Enc) ->
+ io_lib_pretty:print(V, ([{column, I}, {line_length, columns()},
+ {depth, ?LINEMAX}, {max_chars, ?CHAR_MAX},
+ {record_print_fun, record_print_fun(RT)}]
+ ++ Enc)).
+
+%% Control sequence 'p' possibly with Unicode translation modifier
+cs_p() ->
+ case encoding() of
+ latin1 -> "p";
+ unicode -> "tp"
+ end.
columns() ->
case io:columns() of
@@ -1436,6 +1456,16 @@ columns() ->
_ -> 80
end.
+encoding() ->
+ [{encoding, Encoding}] = enc(),
+ Encoding.
+
+enc() ->
+ case lists:keyfind(encoding, 1, io:getopts()) of
+ false -> [{encoding,latin1}]; % should never happen
+ Enc -> [Enc]
+ end.
+
garb(Shell) ->
erlang:garbage_collect(Shell),
catch erlang:garbage_collect(whereis(user)),
@@ -1458,7 +1488,8 @@ check_env(V) ->
ok;
{ok, Val} ->
Txt = io_lib:fwrite(
- <<"Invalid value of STDLIB configuration parameter ~p: ~p\n">>,
+ ("Invalid value of STDLIB configuration parameter ~w: ~"
+ ++cs_p()++"\n"),
[V, Val]),
error_logger:info_report(lists:flatten(Txt))
end.
diff --git a/lib/stdlib/test/epp_SUITE.erl b/lib/stdlib/test/epp_SUITE.erl
index 77c615d6d9..606bbbcbb2 100644
--- a/lib/stdlib/test/epp_SUITE.erl
+++ b/lib/stdlib/test/epp_SUITE.erl
@@ -25,7 +25,7 @@
variable_1/1, otp_4870/1, otp_4871/1, otp_5362/1,
pmod/1, not_circular/1, skip_header/1, otp_6277/1, otp_7702/1,
otp_8130/1, overload_mac/1, otp_8388/1, otp_8470/1, otp_8503/1,
- otp_8562/1, otp_8665/1, otp_8911/1]).
+ otp_8562/1, otp_8665/1, otp_8911/1, otp_10302/1]).
-export([epp_parse_erl_form/2]).
@@ -67,7 +67,7 @@ all() ->
{group, variable}, otp_4870, otp_4871, otp_5362, pmod,
not_circular, skip_header, otp_6277, otp_7702, otp_8130,
overload_mac, otp_8388, otp_8470, otp_8503, otp_8562,
- otp_8665, otp_8911].
+ otp_8665, otp_8911, otp_10302].
groups() ->
[{upcase_mac, [], [upcase_mac_1, upcase_mac_2]},
@@ -582,12 +582,13 @@ otp_8130(suite) ->
otp_8130(Config) when is_list(Config) ->
true = os:putenv("epp_inc1", "stdlib"),
Ts = [{otp_8130_1,
- %% The scanner handles UNICODE in a special way. Hopefully
- %% temporarily.
<<"-define(M(A), ??A). "
"t() -> "
- " \"{ 34 , [ $1 , 2730 ] , \\\"34\\\" , X . a , 2730 }\" = "
- " ?M({34,\"1\\x{aaa}\",\"34\",X.a,$\\x{aaa}}), ok. ">>,
+ " L = \"{ 34 , \\\"1\\\\x{AAA}\\\" , \\\"34\\\" , X . a , $\\\\x{AAA} }\", "
+ " R = ?M({34,\"1\\x{aaa}\",\"34\",X.a,$\\x{aaa}}),"
+ " Lt = erl_scan:string(L, 1, [unicode]),"
+ " Rt = erl_scan:string(R, 1, [unicode]),"
+ " Lt = Rt, ok. ">>,
ok},
{otp_8130_2,
@@ -1284,6 +1285,75 @@ otp_8665(Config) when is_list(Config) ->
?line [] = compile(Config, Cs),
ok.
+otp_10302(doc) ->
+ "OTP-10302. Unicode characters scanner/parser.";
+otp_10302(suite) ->
+ [];
+otp_10302(Config) when is_list(Config) ->
+ %% Two messages (one too many). Keeps otp_4871 happy.
+ Cs = [{otp_8562,
+ <<"%% coding: utf-8\n \n \x{E4}">>,
+ {errors,[{3,epp,cannot_parse},
+ {3,file_io_server,invalid_unicode}],[]}}
+ ],
+ [] = compile(Config, Cs),
+ Dir = ?config(priv_dir, Config),
+ File = filename:join(Dir, "otp_10302.erl"),
+ utf8 = encoding("coding: utf-8", File),
+ utf8 = encoding("coding: UTF-8", File),
+ latin1 = encoding("coding: Latin-1", File),
+ latin1 = encoding("coding: latin-1", File),
+ none = encoding_com("coding: utf-8", File),
+ none = encoding_com("\n\n%% coding: utf-8", File),
+ none = encoding_nocom("\n\n coding: utf-8", File),
+ utf8 = encoding_com("\n%% coding: utf-8", File),
+ utf8 = encoding_nocom("\n coding: utf-8", File),
+ none = encoding("coding: \nutf-8", File),
+ latin1 = encoding("Encoding : latin-1", File),
+ utf8 = encoding("ccoding: UTF-8", File),
+ utf8 = encoding("coding= utf-8", File),
+ utf8 = encoding_com(" %% coding= utf-8", File),
+ utf8 = encoding("coding = utf-8", File),
+ none = encoding("coding: utf-16 coding: utf-8", File), %first is bad
+ none = encoding("Coding: utf-8", File), %capital c
+ utf8 = encoding("-*- coding: utf-8 -*-", File),
+ utf8 = encoding("-*-coding= utf-8-*-", File),
+ utf8 = encoding("codingcoding= utf-8", File),
+ ok = prefix("coding: utf-8", File, utf8),
+
+ "coding: latin-1" = epp:encoding_to_string(latin1),
+ "coding: utf-8" = epp:encoding_to_string(utf8),
+ true = lists:member(epp:default_encoding(), [latin1, utf8]),
+
+ ok.
+
+prefix(S, File, Enc) ->
+ prefix(0, S, File, Enc).
+
+prefix(100, _S, _File, _) ->
+ ok;
+prefix(N, S, File, Enc) ->
+ Enc = encoding(lists:duplicate(N, $\s) ++ S, File),
+ prefix(N+1, S, File, Enc).
+
+encoding(Enc, File) ->
+ E = encoding_com("%% " ++ Enc, File),
+ none = encoding_com(Enc, File),
+ E = encoding_nocom(Enc, File).
+
+encoding_com(Enc, File) ->
+ ok = file:write_file(File, Enc),
+ {ok, Fd} = file:open(File, [read]),
+ E = epp:set_encoding(Fd),
+ ok = file:close(Fd),
+ E = epp:read_encoding(File).
+
+encoding_nocom(Enc, File) ->
+ ok = file:write_file(File, Enc),
+ {ok, Fd} = file:open(File, [read]),
+ ok = file:close(Fd),
+ epp:read_encoding(File, [{in_comment_only, false}]).
+
check(Config, Tests) ->
eval_tests(Config, fun check_test/2, Tests).
diff --git a/lib/stdlib/test/erl_pp_SUITE.erl b/lib/stdlib/test/erl_pp_SUITE.erl
index 64853ca078..07303174f1 100644
--- a/lib/stdlib/test/erl_pp_SUITE.erl
+++ b/lib/stdlib/test/erl_pp_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2012. 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
@@ -48,7 +48,8 @@
neg_indent/1,
otp_6321/1, otp_6911/1, otp_6914/1, otp_8150/1, otp_8238/1,
- otp_8473/1, otp_8522/1, otp_8567/1, otp_8664/1, otp_9147/1]).
+ otp_8473/1, otp_8522/1, otp_8567/1, otp_8664/1, otp_9147/1,
+ otp_10302/1]).
%% Internal export.
-export([ehook/6]).
@@ -79,7 +80,7 @@ groups() ->
{attributes, [], [misc_attrs, import_export]},
{tickets, [],
[otp_6321, otp_6911, otp_6914, otp_8150, otp_8238,
- otp_8473, otp_8522, otp_8567, otp_8664, otp_9147]}].
+ otp_8473, otp_8522, otp_8567, otp_8664, otp_9147, otp_10302]}].
init_per_suite(Config) ->
Config.
@@ -634,8 +635,12 @@ misc_attrs(Config) when is_list(Config) ->
hook(suite) ->
[];
hook(Config) when is_list(Config) ->
+ F = fun(H) -> H end,
+ do_hook(F).
+
+do_hook(HookFun) ->
Lc = parse_expr(binary_to_list(<<"[X || X <- [1,2,3]].">>)),
- H = fun hook/4,
+ H = HookFun(fun hook/4),
Expr = {call,0,{atom,0,fff},[{foo,Lc},{foo,Lc},{foo,Lc}]},
EChars = lists:flatten(erl_pp:expr(Expr, 0, H)),
Call = {call,0,{atom,0,foo},[Lc]},
@@ -692,7 +697,7 @@ hook(Config) when is_list(Config) ->
GChars2 = erl_pp:guard(G2),
?line true = GChars =:= lists:flatten(GChars2),
- EH = {?MODULE, ehook, [foo,bar]},
+ EH = HookFun({?MODULE, ehook, [foo,bar]}),
XEChars = erl_pp:expr(Expr, -1, EH),
?line true = remove_indentation(EChars) =:= lists:flatten(XEChars),
XEChars2 = erl_pp:expr(Expr, EH),
@@ -1068,6 +1073,43 @@ otp_9147(Config) when is_list(Config) ->
string:tokens(binary_to_list(Bin), "\n")),
ok.
+otp_10302(doc) ->
+ "OTP-10302. Unicode characters scanner/parser.";
+otp_10302(suite) -> [];
+otp_10302(Config) when is_list(Config) ->
+ Ts = [{uni_1,
+ <<"t() -> <<(<<\"abc\\x{aaa}\">>):3/binary>>.">>}
+ ],
+ compile(Config, Ts),
+ ok = pp_expr(<<"$\\x{aaa}">>),
+ ok = pp_expr(<<"\"1\\x{aaa}\"">>),
+ ok = pp_expr(<<"<<<<\"hej\">>/binary>>">>),
+ ok = pp_expr(<<"<< <<\"1\\x{aaa}\">>/binary>>">>),
+
+ U = [{encoding,unicode}],
+
+ do_hook(fun(H) -> [{hook,H}] end),
+ do_hook(fun(H) -> [{hook,H}]++U end),
+
+ ok = pp_expr(<<"$\\x{aaa}">>, [{hook,fun hook/4}]),
+
+ Opts = [{hook, fun unicode_hook/4},{encoding,unicode}],
+ Lc = parse_expr("[X || X <- [\"\x{400}\",\"\xFF\"]]."),
+ Expr = {call,0,{atom,0,fff},[{foo,{foo,Lc}},{foo,{foo,Lc}}]},
+ EChars = lists:flatten(erl_pp:expr(Expr, 0, Opts)),
+ Call = {call,0,{atom,0,foo},[{call,0,{atom,0,foo},[Lc]}]},
+ Expr2 = {call,0,{atom,0,fff},[Call,Call]},
+ EChars2 = erl_pp:exprs([Expr2], U),
+ EChars = lists:flatten(EChars2),
+ [$\x{400},$\x{400}] = [C || C <- EChars, C > 255],
+
+ ok = pp_forms(<<"function() -> {\"\x{400}\",$\x{400}}. "/utf8>>, U),
+ ok = pp_forms("function() -> {\"\x{400}\",$\x{400}}. ", []),
+ ok.
+
+unicode_hook({foo,E}, I, P, H) ->
+ erl_pp:expr({call,0,{atom,0,foo},[E]}, I, P, H).
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
compile(Config, Tests) ->
@@ -1137,9 +1179,11 @@ flat_expr(Expr) ->
pp_forms(Bin) ->
pp_forms(Bin, none).
-pp_forms(Bin, Hook) ->
- PP1 = (catch parse_and_pp_forms(binary_to_list(Bin), Hook)),
- PP2 = (catch parse_and_pp_forms(PP1, Hook)),
+pp_forms(Bin, Options) when is_binary(Bin) ->
+ pp_forms(to_list(Bin, Options), Options);
+pp_forms(List, Options) when is_list(List) ->
+ PP1 = (catch parse_and_pp_forms(List, Options)),
+ PP2 = (catch parse_and_pp_forms(PP1, Options)),
case PP1 =:= PP2 of % same line numbers
true ->
test_max_line(PP1);
@@ -1147,8 +1191,8 @@ pp_forms(Bin, Hook) ->
not_ok
end.
-parse_and_pp_forms(String, Hook) ->
- lists:append(lists:map(fun(AF) -> erl_pp:form(AF, Hook)
+parse_and_pp_forms(String, Options) ->
+ lists:append(lists:map(fun(AF) -> erl_pp:form(AF, Options)
end, parse_forms(String))).
parse_forms(Chars) ->
@@ -1158,7 +1202,7 @@ parse_forms(Chars) ->
parse_forms2([], _Cont, _Line, Forms) ->
lists:reverse(Forms);
parse_forms2(String, Cont0, Line, Forms) ->
- case erl_scan:tokens(Cont0, String, Line) of
+ case erl_scan:tokens(Cont0, String, Line, [unicode]) of
{done, {ok, Tokens, EndLine}, Chars} ->
{ok, Form} = erl_parse:parse_form(Tokens),
parse_forms2(Chars, [], EndLine, [Form | Forms]);
@@ -1174,10 +1218,12 @@ pp_expr(Bin) ->
pp_expr(Bin, none).
%% Final dot is added.
-pp_expr(Bin, Hook) ->
- PP1 = (catch parse_and_pp_expr(binary_to_list(Bin), 0, Hook)),
- PPneg = (catch parse_and_pp_expr(binary_to_list(Bin), -1, Hook)),
- PP2 = (catch parse_and_pp_expr(PPneg, 0, Hook)),
+pp_expr(Bin, Options) when is_binary(Bin) ->
+ pp_expr(to_list(Bin, Options), Options);
+pp_expr(List, Options) when is_list(List) ->
+ PP1 = (catch parse_and_pp_expr(List, 0, Options)),
+ PPneg = (catch parse_and_pp_expr(List, -1, Options)),
+ PP2 = (catch parse_and_pp_expr(PPneg, 0, Options)),
if
PP1 =:= PP2 -> % same line numbers
case
@@ -1192,15 +1238,24 @@ pp_expr(Bin, Hook) ->
not_ok
end.
-parse_and_pp_expr(String, Indent, Hook) ->
+parse_and_pp_expr(String, Indent, Options) ->
StringDot = lists:flatten(String) ++ ".",
- erl_pp:expr(parse_expr(StringDot), Indent, Hook).
+ erl_pp:expr(parse_expr(StringDot), Indent, Options).
parse_expr(Chars) ->
- {ok, Tokens, _} = erl_scan:string(Chars),
+ {ok, Tokens, _} = erl_scan:string(Chars, 1, [unicode]),
{ok, [Expr]} = erl_parse:parse_exprs(Tokens),
Expr.
+to_list(Bin, Options) when is_list(Options) ->
+ case proplists:get_value(encoding, Options) of
+ unicode -> unicode:characters_to_list(Bin);
+ encoding -> binary_to_list(Bin);
+ undefined -> binary_to_list(Bin)
+ end;
+to_list(Bin, _Hook) ->
+ binary_to_list(Bin).
+
test_new_line(String) ->
case string:chr(String, $\n) of
0 -> ok;
diff --git a/lib/stdlib/test/erl_scan_SUITE.erl b/lib/stdlib/test/erl_scan_SUITE.erl
index 4298b2c701..7994146d67 100644
--- a/lib/stdlib/test/erl_scan_SUITE.erl
+++ b/lib/stdlib/test/erl_scan_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1998-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2012. 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
@@ -20,7 +20,7 @@
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2]).
--export([ error_1/1, error_2/1, iso88591/1, otp_7810/1]).
+-export([ error_1/1, error_2/1, iso88591/1, otp_7810/1, otp_10302/1]).
-import(lists, [nth/2,flatten/1]).
-import(io_lib, [print/1]).
@@ -59,7 +59,7 @@ end_per_testcase(_Case, Config) ->
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
- [{group, error}, iso88591, otp_7810].
+ [{group, error}, iso88591, otp_7810, otp_10302].
groups() ->
[{error, [], [error_1, error_2]}].
@@ -823,7 +823,7 @@ unicode() ->
?line {ok,[{char,1,1}],1} = erl_scan:string([$$,$\\,$^,1089]),
?line {error,{1,erl_scan,Error},1} = erl_scan:string("\"qa\x{aaa}"),
- ?line "unterminated string starting with \"qa\\x{AAA}\"" =
+ ?line "unterminated string starting with \"qa"++[2730]++"\"" =
erl_scan:format_error(Error),
?line {error,{{1,1},erl_scan,_},{1,11}} =
erl_scan:string("\"qa\\x{aaa}",{1,1}),
@@ -887,9 +887,10 @@ unicode() ->
{char,_,$d},{']',_}],{1,8}} = erl_scan:string(Str1, {1,1}),
?line test(Str1),
Comment = "%% "++[1089],
- ?line {ok,[{comment,1,[$%,$%,$\s,1089]}],1} =
+ %% Returned a comment In R15B03:
+ {error,{1,erl_scan,{illegal,character}},1} =
erl_scan:string(Comment, 1, return),
- ?line {ok,[{comment,_,[$%,$%,$\s,1089]}],{1,5}} =
+ {error,{{1,1},erl_scan,{illegal,character}},{1,5}} =
erl_scan:string(Comment, {1,1}, return),
ok.
@@ -958,6 +959,182 @@ more_chars() ->
erl_scan:string("$\\xg", {1,1}),
ok.
+otp_10302(doc) ->
+ "OTP-10302. Unicode characters scanner/parser.";
+otp_10302(suite) ->
+ [];
+otp_10302(Config) when is_list(Config) ->
+ %% From unicode():
+ {error,{1,erl_scan,{illegal,atom}},1} =
+ erl_scan:string("'a"++[1089]++"b'", 1, unicode),
+ {error,{{1,1},erl_scan,{illegal,atom}},{1,12}} =
+ erl_scan:string("'qa\\x{aaa}'",{1,1},unicode),
+
+ {ok,[{char,1,1089}],1} = erl_scan:string([$$,1089], 1, unicode),
+ {ok,[{char,1,1089}],1} = erl_scan:string([$$,$\\,1089],1,unicode),
+
+ Qs = "$\\x{aaa}",
+ {ok,[{char,1,2730}],1} = erl_scan:string(Qs,1,unicode),
+ {ok,[Q2],{1,9}} = erl_scan:string(Qs,{1,1},[unicode,text]),
+ [{category,char},{column,1},{length,8},
+ {line,1},{symbol,16#aaa},{text,Qs}] =
+ erl_scan:token_info(Q2),
+
+ Tags = [category, column, length, line, symbol, text],
+
+ U1 = "\"\\x{aaa}\"",
+ {ok,[T1],{1,10}} = erl_scan:string(U1, {1,1}, [unicode,text]),
+ [{category,string},{column,1},{length,9},{line,1},
+ {symbol,[16#aaa]},{text,U1}] = erl_scan:token_info(T1, Tags),
+
+ U2 = "\"\\x41\\x{fff}\\x42\"",
+ {ok,[{string,1,[65,4095,66]}],1} = erl_scan:string(U2, 1, unicode),
+
+ U3 = "\"a\n\\x{fff}\n\"",
+ {ok,[{string,1,[97,10,4095,10]}],3} = erl_scan:string(U3, 1,unicode),
+
+ U4 = "\"\\^\n\\x{aaa}\\^\n\"",
+ {ok,[{string,1,[10,2730,10]}],3} = erl_scan:string(U4, 1,[unicode]),
+
+ Str1 = "\"ab" ++ [1089] ++ "cd\"",
+ {ok,[{string,1,[97,98,1089,99,100]}],1} =
+ erl_scan:string(Str1,1,unicode),
+ {ok,[{string,{1,1},[97,98,1089,99,100]}],{1,8}} =
+ erl_scan:string(Str1, {1,1},unicode),
+
+ OK1 = 16#D800-1,
+ OK2 = 16#DFFF+1,
+ OK3 = 16#FFFE-1,
+ OK4 = 16#FFFF+1,
+ OKL = [OK1,OK2,OK3,OK4],
+
+ Illegal1 = 16#D800,
+ Illegal2 = 16#DFFF,
+ Illegal3 = 16#FFFE,
+ Illegal4 = 16#FFFF,
+ IllegalL = [Illegal1,Illegal2,Illegal3,Illegal4],
+
+ [{ok,[{comment,1,[$%,$%,$\s,OK]}],1} =
+ erl_scan:string("%% "++[OK], 1, [unicode,return]) ||
+ OK <- OKL],
+ {ok,[{comment,_,[$%,$%,$\s,OK1]}],{1,5}} =
+ erl_scan:string("%% "++[OK1], {1,1}, [unicode,return]),
+ [{error,{1,erl_scan,{illegal,character}},1} =
+ erl_scan:string("%% "++[Illegal], 1, [unicode,return]) ||
+ Illegal <- IllegalL],
+ {error,{{1,1},erl_scan,{illegal,character}},{1,5}} =
+ erl_scan:string("%% "++[Illegal1], {1,1}, [unicode,return]),
+
+ [{ok,[],1} = erl_scan:string("%% "++[OK], 1, [unicode]) ||
+ OK <- OKL],
+ {ok,[],{1,5}} = erl_scan:string("%% "++[OK1], {1,1}, [unicode]),
+ [{error,{1,erl_scan,{illegal,character}},1} =
+ erl_scan:string("%% "++[Illegal], 1, [unicode]) ||
+ Illegal <- IllegalL],
+ {error,{{1,1},erl_scan,{illegal,character}},{1,5}} =
+ erl_scan:string("%% "++[Illegal1], {1,1}, [unicode]),
+
+ [{ok,[{string,{1,1},[OK]}],{1,4}} =
+ erl_scan:string("\""++[OK]++"\"",{1,1},unicode) ||
+ OK <- OKL],
+ [{error,{{1,2},erl_scan,{illegal,character}},{1,3}} =
+ erl_scan:string("\""++[OK]++"\"",{1,1},unicode) ||
+ OK <- IllegalL],
+
+ [{error,{{1,1},erl_scan,{illegal,character}},{1,2}} =
+ erl_scan:string([Illegal],{1,1},unicode) ||
+ Illegal <- IllegalL],
+
+ {ok,[{char,{1,1},OK1}],{1,3}} =
+ erl_scan:string([$$,OK1],{1,1},unicode),
+ {error,{{1,1},erl_scan,{illegal,character}},{1,2}} =
+ erl_scan:string([$$,Illegal1],{1,1},unicode),
+
+ {ok,[{char,{1,1},OK1}],{1,4}} =
+ erl_scan:string([$$,$\\,OK1],{1,1},unicode),
+ {error,{{1,1},erl_scan,{illegal,character}},{1,4}} =
+ erl_scan:string([$$,$\\,Illegal1],{1,1},unicode),
+
+ {ok,[{string,{1,1},[55295]}],{1,5}} =
+ erl_scan:string("\"\\"++[OK1]++"\"",{1,1},unicode),
+ {error,{{1,2},erl_scan,{illegal,character}},{1,4}} =
+ erl_scan:string("\"\\"++[Illegal1]++"\"",{1,1},unicode),
+
+ {ok,[{char,{1,1},OK1}],{1,10}} =
+ erl_scan:string("$\\x{D7FF}",{1,1},unicode),
+ {error,{{1,1},erl_scan,{illegal,character}},{1,10}} =
+ erl_scan:string("$\\x{D800}",{1,1},unicode),
+
+ %% Not erl_scan, but erl_parse.
+ {integer,0,1} = erl_parse:abstract(1),
+ Float = 3.14, {float,0,Float} = erl_parse:abstract(Float),
+ {nil,0} = erl_parse:abstract([]),
+ {bin,0,
+ [{bin_element,0,{integer,0,1},default,default},
+ {bin_element,0,{integer,0,2},default,default}]} =
+ erl_parse:abstract(<<1,2>>),
+ {cons,0,{tuple,0,[{atom,0,a}]},{atom,0,b}} =
+ erl_parse:abstract([{a} | b]),
+ {string,0,"str"} = erl_parse:abstract("str"),
+ {cons,0,
+ {integer,0,$a},
+ {cons,0,{integer,0,1024},{string,0,"c"}}} =
+ erl_parse:abstract("a"++[1024]++"c"),
+
+ Line = 17,
+ {integer,Line,1} = erl_parse:abstract(1, Line),
+ Float = 3.14, {float,Line,Float} = erl_parse:abstract(Float, Line),
+ {nil,Line} = erl_parse:abstract([], Line),
+ {bin,Line,
+ [{bin_element,Line,{integer,Line,1},default,default},
+ {bin_element,Line,{integer,Line,2},default,default}]} =
+ erl_parse:abstract(<<1,2>>, Line),
+ {cons,Line,{tuple,Line,[{atom,Line,a}]},{atom,Line,b}} =
+ erl_parse:abstract([{a} | b], Line),
+ {string,Line,"str"} = erl_parse:abstract("str", Line),
+ {cons,Line,
+ {integer,Line,$a},
+ {cons,Line,{integer,Line,1024},{string,Line,"c"}}} =
+ erl_parse:abstract("a"++[1024]++"c", Line),
+
+ Opts1 = [{line,17}],
+ {integer,Line,1} = erl_parse:abstract(1, Opts1),
+ Float = 3.14, {float,Line,Float} = erl_parse:abstract(Float, Opts1),
+ {nil,Line} = erl_parse:abstract([], Opts1),
+ {bin,Line,
+ [{bin_element,Line,{integer,Line,1},default,default},
+ {bin_element,Line,{integer,Line,2},default,default}]} =
+ erl_parse:abstract(<<1,2>>, Opts1),
+ {cons,Line,{tuple,Line,[{atom,Line,a}]},{atom,Line,b}} =
+ erl_parse:abstract([{a} | b], Opts1),
+ {string,Line,"str"} = erl_parse:abstract("str", Opts1),
+ {cons,Line,
+ {integer,Line,$a},
+ {cons,Line,{integer,Line,1024},{string,Line,"c"}}} =
+ erl_parse:abstract("a"++[1024]++"c", Opts1),
+
+ [begin
+ {integer,Line,1} = erl_parse:abstract(1, Opts2),
+ Float = 3.14, {float,Line,Float} = erl_parse:abstract(Float, Opts2),
+ {nil,Line} = erl_parse:abstract([], Opts2),
+ {bin,Line,
+ [{bin_element,Line,{integer,Line,1},default,default},
+ {bin_element,Line,{integer,Line,2},default,default}]} =
+ erl_parse:abstract(<<1,2>>, Opts2),
+ {cons,Line,{tuple,Line,[{atom,Line,a}]},{atom,Line,b}} =
+ erl_parse:abstract([{a} | b], Opts2),
+ {string,Line,"str"} = erl_parse:abstract("str", Opts2),
+ {string,Line,[97,1024,99]} =
+ erl_parse:abstract("a"++[1024]++"c", Opts2)
+ end || Opts2 <- [[{encoding,unicode},{line,Line}],
+ [{encoding,utf8},{line,Line}]]],
+
+ {cons,0,
+ {integer,0,97},
+ {cons,0,{integer,0,1024},{string,0,"c"}}} =
+ erl_parse:abstract("a"++[1024]++"c", [{encoding,latin1}]),
+ ok.
+
test_string(String, Expected) ->
{ok, Expected, _End} = erl_scan:string(String),
test(String).
diff --git a/lib/stdlib/test/escript_SUITE.erl b/lib/stdlib/test/escript_SUITE.erl
index 5b592c65cc..7634c21a17 100644
--- a/lib/stdlib/test/escript_SUITE.erl
+++ b/lib/stdlib/test/escript_SUITE.erl
@@ -34,7 +34,8 @@
create_and_extract/1,
foldl/1,
overflow/1,
- verify_sections/3
+ verify_sections/3,
+ unicode/1
]).
-include_lib("test_server/include/test_server.hrl").
@@ -46,7 +47,7 @@ all() ->
[basic, errors, strange_name, emulator_flags,
module_script, beam_script, archive_script, epp,
create_and_extract, foldl, overflow,
- archive_script_file_access].
+ archive_script_file_access, unicode].
groups() ->
[].
@@ -810,6 +811,8 @@ normalize_sections(Sections) ->
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
foldl(Config) when is_list(Config) ->
{NewFile, _FileInfo,
_EmuArg, _Source,
@@ -887,6 +890,20 @@ emulate_escript_foldl(Fun, Acc, File) ->
{error, Reason}
end.
+unicode(Config) when is_list(Config) ->
+ Data = ?config(data_dir, Config),
+ Dir = filename:absname(Data), %Get rid of trailing slash.
+ run(Dir, "unicode1",
+ [<<"escript: exception error: an error occurred when evaluating"
+ " an arithmetic expression\n in operator '/'/2\n "
+ "called as <<170>> / <<170>>\nExitCode:127">>]),
+ run(Dir, "unicode2",
+ [<<"escript: exception error: an error occurred when evaluating"
+ " an arithmetic expression\n in operator '/'/2\n "
+ "called as <<\"\xaa\">> / <<\"\xaa\">>\nExitCode:127">>]),
+ run(Dir, "unicode3", [<<"ExitCode:0">>]),
+ ok.
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
overflow(Config) when is_list(Config) ->
diff --git a/lib/stdlib/test/escript_SUITE_data/unicode1 b/lib/stdlib/test/escript_SUITE_data/unicode1
new file mode 100755
index 0000000000..a77574625e
--- /dev/null
+++ b/lib/stdlib/test/escript_SUITE_data/unicode1
@@ -0,0 +1,14 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+-export([main/1]).
+
+main(_) ->
+ ok = io:setopts([{encoding,unicode}]),
+ _D = erlang:system_flag(backtrace_depth, 0),
+ A = <<"\x{aa}">>,
+ S = lists:flatten(io_lib:format("~p/~p.", [A, A])),
+ {ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
+ {ok, Es} = erl_parse:parse_exprs(Ts),
+ B = erl_eval:new_bindings(),
+ erl_eval:exprs(Es, B).
diff --git a/lib/stdlib/test/escript_SUITE_data/unicode2 b/lib/stdlib/test/escript_SUITE_data/unicode2
new file mode 100755
index 0000000000..495188f6f0
--- /dev/null
+++ b/lib/stdlib/test/escript_SUITE_data/unicode2
@@ -0,0 +1,14 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+-export([main/1]).
+
+main(_) ->
+ ok = io:setopts([{encoding,latin1}]),
+ _D = erlang:system_flag(backtrace_depth, 0),
+ A = <<"\x{aa}">>,
+ S = lists:flatten(io_lib:format("~p/~p.", [A, A])),
+ {ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
+ {ok, Es} = erl_parse:parse_exprs(Ts),
+ B = erl_eval:new_bindings(),
+ erl_eval:exprs(Es, B).
diff --git a/lib/stdlib/test/escript_SUITE_data/unicode3 b/lib/stdlib/test/escript_SUITE_data/unicode3
new file mode 100755
index 0000000000..944487dcae
--- /dev/null
+++ b/lib/stdlib/test/escript_SUITE_data/unicode3
@@ -0,0 +1,13 @@
+#!/usr/bin/env escript
+%% -*- erlang; coding: utf-8 -*-
+
+-export([main/1]).
+
+main(_) ->
+ ok = io:setopts([{encoding,unicode}]),
+ Bin1 = <<"örn_Ѐ שלום-שלום+של 日本語">>,
+
+ L = [246,114,110,95,1024,32,1513,1500,1493,1501,45,1513,1500,1493,
+ 1501,43,1513,1500,32,26085,26412,35486],
+ L = unicode:characters_to_list(Bin1, utf8),
+ ok.
diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl
index 74fcdcc7d2..4f030053aa 100644
--- a/lib/stdlib/test/io_SUITE.erl
+++ b/lib/stdlib/test/io_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2012. 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
@@ -28,7 +28,7 @@
manpage/1, otp_6708/1, otp_7084/1, otp_7421/1,
io_lib_collect_line_3_wb/1, cr_whitespace_in_string/1,
io_fread_newlines/1, otp_8989/1, io_lib_fread_literal/1,
- io_lib_print_binary_depth_one/1]).
+ io_lib_print_binary_depth_one/1, otp_10302/1]).
%-define(debug, true).
@@ -64,7 +64,7 @@ all() ->
manpage, otp_6708, otp_7084, otp_7421,
io_lib_collect_line_3_wb, cr_whitespace_in_string,
io_fread_newlines, otp_8989, io_lib_fread_literal,
- io_lib_print_binary_depth_one].
+ io_lib_print_binary_depth_one, otp_10302].
groups() ->
[].
@@ -2034,3 +2034,44 @@ io_lib_print_binary_depth_one(Suite) when is_list(Suite) ->
?line "<<...>>" = fmt("~W", [<<1:7>>, 1]),
?line "<<...>>" = fmt("~P", [<<1:7>>, 1]),
ok.
+
+otp_10302(doc) ->
+ "OTP-10302. Unicode";
+otp_10302(Suite) when is_list(Suite) ->
+ "\"\x{400}\"" = pretty("\x{400}", -1),
+ "<<\"\x{400}\"/utf8>>" = pretty(<<"\x{400}"/utf8>>, -1),
+
+ "<<\"\x{400}foo\"/utf8>>" = pretty(<<"\x{400}foo"/utf8>>, 2),
+ "<<\"�ppl\"/utf8>>" = pretty(<<"�ppl"/utf8>>, 2),
+ "<<\"�ppl\"/utf8...>>" = pretty(<<"�pple"/utf8>>, 2),
+ "<<\"apel\">>" = pretty(<<"apel">>, 2),
+ "<<\"apel\"...>>" = pretty(<<"apelsin">>, 2),
+ "<<228,112,112,108>>" = fmt("~tp", [<<"�ppl">>]),
+ "<<228,...>>" = fmt("~tP", [<<"�ppl">>, 2]),
+
+ Chars = lists:seq(0, 512), % just a few...
+ [] = [C || C <- Chars, S <- io_lib:write_unicode_char_as_latin1(C),
+ not is_latin1(S)],
+ L1 = [S || C <- Chars, S <- io_lib:write_unicode_char(C),
+ not is_latin1(S)],
+ L1 = lists:seq(256, 512),
+
+ [] = [C || C <- Chars, S <- io_lib:write_unicode_string_as_latin1([C]),
+ not is_latin1(S)],
+ L2 = [S || C <- Chars, S <- io_lib:write_unicode_string([C]),
+ not is_latin1(S)],
+ L2 = lists:seq(256, 512),
+
+ ok.
+
+pretty(Term, Depth) when is_integer(Depth) ->
+ Opts = [{column, 1}, {line_length, 20},
+ {depth, Depth}, {max_chars, 60},
+ {encoding, unicode}],
+ pretty(Term, Opts);
+pretty(Term, Opts) when is_list(Opts) ->
+ R = io_lib_pretty:print(Term, Opts),
+ lists:flatten(io_lib:format("~ts", [R])).
+
+is_latin1(S) ->
+ S >= 0 andalso S =< 255.
diff --git a/lib/stdlib/test/io_proto_SUITE.erl b/lib/stdlib/test/io_proto_SUITE.erl
index 17e69f7c1c..299daf0e42 100644
--- a/lib/stdlib/test/io_proto_SUITE.erl
+++ b/lib/stdlib/test/io_proto_SUITE.erl
@@ -736,7 +736,7 @@ binary_options(Config) when is_list(Config) ->
{getline_re, ".*<<\"hej\\\\n\">>"},
{putline, "io:get_line('')."},
{putline, binary_to_list(<<"\345\344\366"/utf8>>)},
- {getline_re, ".*<<\""++binary_to_list(unicode:characters_to_binary(<<"\345\344\366"/utf8>>,latin1,utf8))++"\\\\n\">>"}
+ {getline_re, ".*<<\""++binary_to_list(<<"\345\344\366"/utf8>>)++"\\\\n\"/utf8>>"}
],[],[],"-oldshell"),
ok.
diff --git a/lib/stdlib/test/shell_SUITE.erl b/lib/stdlib/test/shell_SUITE.erl
index d49416c150..a32f846bd2 100644
--- a/lib/stdlib/test/shell_SUITE.erl
+++ b/lib/stdlib/test/shell_SUITE.erl
@@ -29,7 +29,7 @@
progex_bit_syntax/1, progex_records/1,
progex_lc/1, progex_funs/1,
otp_5990/1, otp_6166/1, otp_6554/1, otp_6785/1,
- otp_7184/1, otp_7232/1, otp_8393/1]).
+ otp_7184/1, otp_7232/1, otp_8393/1, otp_10302/1]).
-export([ start_restricted_from_shell/1,
start_restricted_on_command_line/1,restricted_local/1]).
@@ -93,7 +93,7 @@ groups() ->
progex_funs]},
{tickets, [],
[otp_5990, otp_6166, otp_6554, otp_6785, otp_7184,
- otp_7232, otp_8393]}].
+ otp_7232, otp_8393, otp_10302]}].
init_per_suite(Config) ->
Config.
@@ -108,7 +108,7 @@ end_per_group(_GroupName, Config) ->
Config.
--record(state, {bin, reply, leader}).
+-record(state, {bin, reply, leader, unic = latin1}).
start_restricted_from_shell(doc) ->
@@ -374,15 +374,18 @@ records(Config) when is_list(Config) ->
MS = ?MODULE_STRING,
RR1 = "rr(" ++ MS ++ "). #state{}.",
?line "[state]\n"
- "#state{bin = undefined,reply = undefined,leader = undefined}.\n" =
+ "#state{bin = undefined,reply = undefined,leader = undefined,\n"
+ " unic = latin1}.\n" =
t(RR1),
RR2 = "rr(" ++ MS ++ ",[state]). #state{}.",
?line "[state]\n"
- "#state{bin = undefined,reply = undefined,leader = undefined}.\n" =
+ "#state{bin = undefined,reply = undefined,leader = undefined,\n"
+ " unic = latin1}.\n" =
t(RR2),
RR3 = "rr(" ++ MS ++ ",'_'). #state{}.",
?line "[state]\n"
- "#state{bin = undefined,reply = undefined,leader = undefined}.\n" =
+ "#state{bin = undefined,reply = undefined,leader = undefined,\n"
+ " unic = latin1}.\n" =
t(RR3),
RR4 = "rr(" ++ MS ++ ", '_', {d,test1}).",
?line [[state]] = scan(RR4),
@@ -2748,6 +2751,143 @@ prompt_err(B) ->
S = string:strip(S2, both, $"),
string:strip(S, right, $.).
+otp_10302(doc) ->
+ "OTP-10302. Unicode.";
+otp_10302(suite) -> [];
+otp_10302(Config) when is_list(Config) ->
+ Test1 =
+ <<"begin
+ io:setopts([{encoding,utf8}]),
+ [1024] = \"\\x{400}\",
+ rd(rec, {a = \"\\x{400}\"}),
+ ok = rl(rec)
+ end.">>,
+ "-record(rec,{a = \"\x{400}\"}).\nok.\n" = t(Test1),
+
+ Test3 =
+ <<"io:setopts([{encoding,utf8}]).
+ rd(rec, {a = \"\\x{400}\"}).
+ ok = rp(#rec{}).">>,
+ "ok.\nrec\n#rec{a = \"\x{400}\"}.\nok.\n" = t(Test3),
+
+ Test4 =
+ <<"io:setopts([{encoding,utf8}]).
+ A = [1024] = \"\\x{400}\".
+ b().
+ h().">>,
+
+ "ok.\n\"\x{400}\"\nA = \"\x{400}\".\nok.\n"
+ "1: io:setopts([{encoding,utf8}])\n-> ok.\n"
+ "2: A = [1024] = \"\x{400}\"\n-> \"\x{400}\"\n"
+ "3: b()\n-> ok.\nok.\n" = t(Test4),
+
+ Test5 =
+ <<"begin
+ io:setopts([{encoding,utf8}]),
+ results(0),
+ A = [1024] = \"\\x{400}\",
+ b(),
+ h()
+ end.">>,
+ "A = \"\x{400}\".\nok.\n" = t(Test5),
+
+ %% One $" is "lost":
+ true =
+ "\x{400}\": command not found" =:=
+ prompt_err({<<"io:setopts([{encoding,utf8}]). v(\"\x{400}\")."/utf8>>,
+ unicode}),
+
+ "ok.\ndefault\n* Bad prompt function: \"\x{400}\".\n" =
+ t({<<"io:setopts([{encoding,utf8}]). "
+ "shell:prompt_func(\"\x{400}\")."/utf8>>,
+ unicode}),
+ _ = shell:prompt_func(default),
+
+ %% Test lib:format_exception() (cf. OTP-6554)
+ Test6 =
+ <<"begin
+ A = <<\"\\xaa\">>,
+ S = lists:flatten(io_lib:format(\"~p/~p.\", [A, A])),
+ {ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
+ {ok, Es} = erl_parse:parse_exprs(Ts),
+ B = erl_eval:new_bindings(),
+ erl_eval:exprs(Es, B)
+ end.">>,
+
+ "** exception error: an error occurred when evaluating"
+ " an arithmetic expression\n in operator '/'/2\n"
+ " called as <<\"\xaa\">> / <<\"\xaa\">>.\n" = t(Test6),
+ Test7 =
+ <<"io:setopts([{encoding,utf8}]).
+ A = <<\"\\xaa\">>,
+ S = lists:flatten(io_lib:format(\"~p/~p.\", [A, A])),
+ {ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
+ {ok, Es} = erl_parse:parse_exprs(Ts),
+ B = erl_eval:new_bindings(),
+ erl_eval:exprs(Es, B).">>,
+
+ "ok.\n** exception error: an error occurred when evaluating"
+ " an arithmetic expression\n in operator '/'/2\n"
+ " called as <<170>> / <<170>>.\n" = t(Test7),
+ Test8 =
+ <<"begin
+ A = [1089],
+ S = lists:flatten(io_lib:format(\"~tp/~tp.\", [A, A])),
+ {ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
+ {ok, Es} = erl_parse:parse_exprs(Ts),
+ B = erl_eval:new_bindings(),
+ erl_eval:exprs(Es, B)
+ end.">>,
+ "** exception error: an error occurred when evaluating"
+ " an arithmetic expression\n in operator '/'/2\n"
+ " called as [1089] / [1089].\n" = t(Test8),
+ Test9 =
+ <<"io:setopts([{encoding,utf8}]).
+ A = [1089],
+ S = lists:flatten(io_lib:format(\"~tp/~tp.\", [A, A])),
+ {ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
+ {ok, Es} = erl_parse:parse_exprs(Ts),
+ B = erl_eval:new_bindings(),
+ erl_eval:exprs(Es, B).">>,
+
+ "ok.\n** exception error: an error occurred when evaluating"
+ " an arithmetic expression\n in operator '/'/2\n"
+ " called as \"\x{441}\" / \"\x{441}\".\n" = t(Test9),
+ Test10 =
+ <<"A = {\"1\\xaa\",
+ $\\xaa,
+ << <<\"hi\">>/binary >>,
+ <<\"1\xaa\">>},
+ fun(a) -> true end(A).">>,
+ "** exception error: no function clause matching \n"
+ " erl_eval:'-inside-an-interpreted-fun-'"
+ "({\"1\xc2\xaa\",170,<<\"hi\">>,\n "
+ " <<\"1\xc2\xaa\">>}) .\n" = t(Test10),
+ Test11 =
+ <<"io:setopts([{encoding,utf8}]).
+ A = {\"1\\xaa\",
+ $\\xaa,
+ << <<\"hi\">>/binary >>,
+ <<\"1\xaa\">>},
+ fun(a) -> true end(A).">>,
+
+ "ok.\n** exception error: no function clause matching \n"
+ " erl_eval:'-inside-an-interpreted-fun-'"
+ "({\"1\xaa\",170,<<\"hi\">>,\n "
+ " <<\"1\xaa\"/utf8>>}) .\n" = t(Test11),
+ Test12 = <<"fun(a, b) -> false end(65, [1089]).">>,
+ "** exception error: no function clause matching \n"
+ " erl_eval:'-inside-an-interpreted-fun-'(65,[1089])"
+ " .\n" = t(Test12),
+ Test13 =
+ <<"io:setopts([{encoding,utf8}]).
+ fun(a, b) -> false end(65, [1089]).">>,
+ "ok.\n** exception error: no function clause matching \n"
+ " erl_eval:'-inside-an-interpreted-fun-'(65,\"\x{441}\")"
+ " .\n" = t(Test13),
+
+ ok.
+
scan(B) ->
F = fun(Ts) ->
case erl_parse:parse_term(Ts) of
@@ -2761,7 +2901,7 @@ scan(B) ->
scan(t(B), F).
scan(S0, F) ->
- case erl_scan:tokens([], S0, 1) of
+ case erl_scan:tokens([], S0, 1, [unicode]) of
{done,{ok,Ts,_},S} ->
[F(Ts) | scan(S, F)];
_Else ->
@@ -2769,29 +2909,36 @@ scan(S0, F) ->
end.
t({Node,Bin}) when is_atom(Node),is_binary(Bin) ->
- t0(Bin, fun() -> start_new_shell(Node) end);
+ t0({Bin,latin1}, fun() -> start_new_shell(Node) end);
t(Bin) when is_binary(Bin) ->
- t0(Bin, fun() -> start_new_shell() end);
+ t0({Bin,latin1}, fun() -> start_new_shell() end);
+t({Bin,Enc}) when is_binary(Bin), is_atom(Enc) ->
+ t0({Bin,Enc}, fun() -> start_new_shell() end);
t(L) ->
t(list_to_binary(L)).
-t0(Bin, F) ->
+t0({Bin,Enc}, F) ->
%% Spawn a process so that io_request messages do not interfer.
P = self(),
- C = spawn(fun() -> t1(P, Bin, F) end),
+ C = spawn(fun() -> t1(P, {Bin, Enc}, F) end),
receive {C, R} -> R end.
-t1(Parent, Bin, F) ->
- %% io:format("*** Testing ~s~n", [binary_to_list(Bin)]),
- S = #state{bin = Bin, reply = [], leader = group_leader()},
+t1(Parent, {Bin,Enc}, F) ->
+ io:format("*** Testing ~s~n", [binary_to_list(Bin)]),
+ S = #state{bin = Bin, unic = Enc, reply = [], leader = group_leader()},
group_leader(self(), self()),
_Shell = F(),
try
server_loop(S)
catch exit:R -> Parent ! {self(), R};
- throw:{?MODULE,LoopReply} ->
+ throw:{?MODULE,LoopReply,latin1} ->
L0 = binary_to_list(list_to_binary(LoopReply)),
[$\n | L1] = lists:dropwhile(fun(X) -> X =/= $\n end, L0),
+ Parent ! {self(), dotify(L1)};
+ throw:{?MODULE,LoopReply,_Uni} ->
+ Tmp = unicode:characters_to_binary(LoopReply),
+ L0 = unicode:characters_to_list(Tmp),
+ [$\n | L1] = lists:dropwhile(fun(X) -> X =/= $\n end, L0),
Parent ! {self(), dotify(L1)}
after group_leader(S#state.leader, self())
end.
@@ -2835,7 +2982,7 @@ do_io_request(Req, From, S, ReplyAs) ->
case io_requests([Req], [], S) of
{_Status,{eof,_},S1} ->
io_reply(From, ReplyAs, {error,terminated}),
- throw({?MODULE,S1#state.reply});
+ throw({?MODULE,S1#state.reply,S1#state.unic});
{_Status,Reply,S1} ->
io_reply(From, ReplyAs, Reply),
S1
@@ -2858,13 +3005,34 @@ io_requests([], [Rs|Cont], S) ->
io_requests([], [], S) ->
{ok,ok,S}.
+io_request({setopts, Opts}, S) ->
+ #state{unic = OldEnc, bin = Bin} = S,
+ NewEnc = case proplists:get_value(encoding, Opts) of
+ undefined -> OldEnc;
+ utf8 -> unicode;
+ New -> New
+ end,
+ NewBin = case {OldEnc, NewEnc} of
+ {E, E} -> Bin;
+ {latin1, _} ->
+ unicode:characters_to_binary(Bin, latin1, unicode);
+ {_, latin1} ->
+ unicode:characters_to_binary(Bin, unicode, latin1);
+ {_, _} -> Bin
+ end,
+ {ok, ok, S#state{unic = NewEnc, bin = NewBin}};
+io_request(getopts, S) ->
+ {ok,[{encoding,S#state.unic}],S};
io_request({get_geometry,columns}, S) ->
{ok,80,S};
io_request({get_geometry,rows}, S) ->
{ok,24,S};
io_request({put_chars,Chars}, S) ->
{ok,ok,S#state{reply = [S#state.reply | Chars]}};
-io_request({put_chars,_,Chars}, S) ->
+io_request({put_chars,latin1,Chars}, S) ->
+ {ok,ok,S#state{reply = [S#state.reply | Chars]}};
+io_request({put_chars,unicode,Chars0}, S) ->
+ Chars = unicode:characters_to_list(Chars0),
{ok,ok,S#state{reply = [S#state.reply | Chars]}};
io_request({put_chars,Mod,Func,Args}, S) ->
case catch apply(Mod, Func, Args) of
@@ -2890,9 +3058,12 @@ get_until_loop(M, F, As, S, {more,Cont}, Enc) ->
0 ->
get_until_loop(M, F, As, S,
catch apply(M, F, [Cont,eof|As]), Enc);
+ _ when S#state.unic =:= latin1 ->
+ get_until_loop(M, F, As, S#state{bin = <<>>},
+ catch apply(M, F, [Cont,binary_to_list(Bin)|As]), Enc);
_ ->
get_until_loop(M, F, As, S#state{bin = <<>>},
- catch apply(M, F, [Cont,binary_to_list(Bin)|As]), Enc)
+ catch apply(M, F, [Cont,unicode:characters_to_list(Bin)|As]), Enc)
end;
get_until_loop(_M, _F, _As, S, {done,Res,Buf}, Enc) ->
{ok,Res,S#state{bin = buf2bin(Buf, Enc)}};
@@ -2903,6 +3074,8 @@ buf2bin(eof,_) ->
<<>>;
buf2bin(Buf,latin1) ->
list_to_binary(Buf);
+buf2bin(Buf,utf8) ->
+ unicode:characters_to_binary(Buf,unicode,unicode);
buf2bin(Buf,unicode) ->
unicode:characters_to_binary(Buf,unicode,unicode).