Merge branch 'dev' of super:otp into dev

* 'dev' of super:otp: (166 commits)
  Corrected documentation error and added examples to Users Guide
  In TLS 1.1, failure to properly close a connection no longer requires that a session not be resumed.  This is a change from TLS 1.0 to conform with widespread implementation practice.  Erlang ssl will now in TLS 1.0 conform to the widespread implementation practice instead of the specification to avoid performance issues.
  Add escript to bootstrap/bin
  Remove unused variable warning in inet_res
  Remove unused variable in epmd_port
  Remove compiler warnings in inet_drv
  Add SASL test suite
  Allow same module name in multiple applications if explicitely excluded
  Fix bugs concerning the option report_missing_types
  Fix default encoding in SAX parser.
  re: remove gratuitous "it " in manpage
  Spelling in (backward *compatibility*) comment.
  Improve erl_docgen's support for Dialyzer specs and types
  dialyzer warning on mnesia_tm
  Add documentation text about majority checking
  add mnesia_majority_test suite
  where_to_wlock optimization + change_table_majority/2
  bug in mnesia_tm:needs_majority/2
  optimize sticky_lock maj. check
  check majority for sticky locks
  ...

1 files changed, 78 insertions, 37 deletions

diff --git a/lib/stdlib/src/erl_scan.erl b/lib/stdlib/src/erl_scan.erl
index 18f64c46d0..718ca2e91a 100644
--- a/lib/stdlib/src/erl_scan.erl
+++ b/lib/stdlib/src/erl_scan.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2011. 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
@@ -99,7 +99,8 @@
 
 %%----------------------------------------------------------------------------
 
--spec format_error(Error :: term()) -> string().
+-spec format_error(ErrorDescriptor) -> string() when
+      ErrorDescriptor :: error_description().
 format_error({string,Quote,Head}) ->
     lists:flatten(["unterminated " ++ string_thing(Quote) ++
                    " starting with " ++
@@ -112,20 +113,33 @@ format_error({base,Base}) ->
 format_error(Other) ->
     lists:flatten(io_lib:write(Other)).
 
--type string_return() :: {'ok', tokens(), location()}
-                       | {'error', error_info(), location()}.
-
--spec string(String :: string()) -> string_return().
+-spec string(String) -> Return when
+      String :: string(),
+      Return :: {'ok', Tokens :: tokens(), EndLocation}
+              | {'error', ErrorInfo :: error_info(), ErrorLocation},
+      EndLocation :: location(),
+      ErrorLocation :: location().
 string(String) ->
     string(String, 1, []).
 
--spec string(String :: string(), StartLocation :: location()) ->
-                   string_return().
+-spec string(String, StartLocation) -> Return when
+      String :: string(),
+      Return :: {'ok', Tokens :: tokens(), EndLocation}
+              | {'error', ErrorInfo :: error_info(), ErrorLocation},
+      StartLocation :: location(),
+      EndLocation :: location(),
+      ErrorLocation :: location().
 string(String, StartLocation) ->
     string(String, StartLocation, []).
 
--spec string(String :: string(), StartLocation :: location(),
-             Options :: options()) -> string_return().
+-spec string(String, StartLocation, Options) -> Return when
+      String :: string(),
+      Options :: options(),
+      Return :: {'ok', Tokens :: tokens(), EndLocation}
+              | {'error', ErrorInfo :: error_info(), ErrorLocation},
+      StartLocation :: location(),
+      EndLocation :: location(),
+      ErrorLocation :: location().
 string(String, Line, Options) when ?STRING(String), ?ALINE(Line) ->
     string1(String, options(Options), Line, no_col, []);
 string(String, {Line,Column}, Options) when ?STRING(String),
@@ -136,29 +150,37 @@ string(String, {Line,Column}, Options) when ?STRING(String),
 -type char_spec() :: string() | 'eof'.
 -type cont_fun() :: fun((char_spec(), #erl_scan{}, line(), column(),
                          tokens(), any()) -> any()).
--opaque return_cont() :: {string(), column(), tokens(), line(),
-                          #erl_scan{}, cont_fun(), any()}.
--type cont() :: return_cont() | [].
--type tokens_result() :: {'ok', tokens(), location()}
-                       | {'eof', location()}
-                       | {'error', error_info(), location()}.
--type tokens_return() :: {'done', tokens_result(), char_spec()}
-                       | {'more', return_cont()}.
-
--spec tokens(Cont :: cont(), CharSpec :: char_spec(),
-             StartLocation :: location()) -> tokens_return().
+-opaque return_cont() :: {erl_scan_continuation,
+                          string(), column(), tokens(), line(),
+                          #erl_scan{}, any(), cont_fun()}.
+-type tokens_result() :: {'ok', Tokens :: tokens(), EndLocation :: location()}
+                       | {'eof', EndLocation :: location()}
+                       | {'error', ErrorInfo :: error_info(),
+                          EndLocation :: location()}.
+
+-spec tokens(Continuation, CharSpec, StartLocation) -> Return when
+      Continuation :: return_cont() | [],
+      CharSpec :: char_spec(),
+      StartLocation :: location(),
+      Return :: {'done',Result :: tokens_result(),LeftOverChars :: char_spec()}
+              | {'more', Continuation1 :: return_cont()}.
 tokens(Cont, CharSpec, StartLocation) ->
     tokens(Cont, CharSpec, StartLocation, []).
 
--spec tokens(Cont :: cont(), CharSpec :: char_spec(),
-             StartLocation :: location(), Options :: options()) ->
-          tokens_return().
+-spec tokens(Continuation, CharSpec, StartLocation, Options) -> Return when
+      Continuation :: return_cont() | [],
+      CharSpec :: char_spec(),
+      StartLocation :: location(),
+      Options :: options(),
+      Return :: {'done',Result :: tokens_result(),LeftOverChars :: char_spec()}
+              | {'more', Continuation1 :: return_cont()}.
 tokens([], CharSpec, Line, Options) when ?ALINE(Line) ->
     tokens1(CharSpec, options(Options), Line, no_col, [], fun scan/6, []);
 tokens([], CharSpec, {Line,Column}, Options) when ?ALINE(Line),
                                                   ?COLUMN(Column) ->
     tokens1(CharSpec, options(Options), Line, Column, [], fun scan/6, []);
-tokens({Cs,Col,Toks,Line,St,Any,Fun}, CharSpec, _Loc, _Opts) ->
+tokens({erl_scan_continuation,Cs,Col,Toks,Line,St,Any,Fun},
+       CharSpec, _Loc, _Opts) ->
     tokens1(Cs++CharSpec, St, Line, Col, Toks, Fun, Any).
 
 -type attribute_item() :: 'column' | 'length' | 'line'
@@ -172,13 +194,22 @@ tokens({Cs,Col,Toks,Line,St,Any,Fun}, CharSpec, _Loc, _Opts) ->
 -type token_info() :: {'category', category()} | {'symbol', symbol()}
                     | attribute_info().
 
--spec token_info(token()) -> [token_info()].
+-spec token_info(Token) -> TokenInfo when
+      Token :: token(),
+      TokenInfo :: [TokenInfoTuple :: token_info()].
 token_info(Token) ->
     Items = [category,column,length,line,symbol,text], % undefined order
     token_info(Token, Items).
 
--spec token_info(token(), token_item()) -> token_info() | 'undefined';
-                (token(), [token_item()]) -> [token_info()].
+-spec token_info(Token, TokenItem) -> TokenInfo | 'undefined' when
+      Token :: token(),
+      TokenItem :: token_item(),
+      TokenInfo :: TokenInfoTuple :: token_info();
+                (Token, TokenItems) -> [TokenInfo] when
+      Token :: token(),
+      TokenItems :: [TokenItem],
+      TokenItem :: token_item(),
+      TokenInfo :: [TokenInfoTuple :: token_info()].
 token_info(_Token, []) ->
     [];
 token_info(Token, [Item|Items]) when is_atom(Item) ->
@@ -201,14 +232,23 @@ token_info({_Category,Attrs}, Item) ->
 token_info({_Category,Attrs,_Symbol}, Item) ->
     attributes_info(Attrs, Item).
 
--spec attributes_info(attributes()) -> [attribute_info()].
+-spec attributes_info(Attributes) -> AttributesInfo when
+      Attributes :: attributes(),
+      AttributesInfo :: [AttributeInfoTuple :: attribute_info()].
 attributes_info(Attributes) ->
     Items = [column,length,line,text], % undefined order
     attributes_info(Attributes, Items).
 
--spec attributes_info(attributes(), attribute_item()) ->
-                        attribute_info() | 'undefined';
-                     (attributes(), [attribute_item()]) -> [attribute_info()].
+-spec attributes_info(Attributes, AttributeItem) ->
+                        AttributeInfo | 'undefined' when
+      Attributes :: attributes(),
+      AttributeItem :: attribute_item(),
+      AttributeInfo :: AttributeInfoTuple :: attribute_info();
+                     (Attributes, AttributeItems) -> [AttributeInfo] when
+      Attributes :: attributes(),
+      AttributeItems :: [AttributeItem],
+      AttributeItem :: attribute_item(),
+      AttributeInfo :: [AttributeInfoTuple :: attribute_info()].
 attributes_info(_Attrs, []) ->
     [];
 attributes_info(Attrs, [A|As]) when is_atom(A) ->
@@ -265,9 +305,10 @@ attributes_info(Attrs, text=Item) ->
 attributes_info(T1, T2) ->
     erlang:error(badarg, [T1,T2]).
 
--type setlineattr_fun() :: fun((info_line()) -> info_line()).
-
--spec set_attribute('line', attributes(), setlineattr_fun()) -> attributes().
+-spec set_attribute(AttributeItem, Attributes, SetAttributeFun) -> Attributes when
+      AttributeItem :: 'line',
+      Attributes :: attributes(),
+      SetAttributeFun :: fun((info_line()) -> info_line()).
 set_attribute(Tag, Attributes, Fun) when ?SETATTRFUN(Fun) ->
     set_attr(Tag, Attributes, Fun).
 
@@ -374,7 +415,7 @@ set_attr(T1, T2, T3) ->
 tokens1(Cs, St, Line, Col, Toks, Fun, Any) when ?STRING(Cs); Cs =:= eof ->
     case Fun(Cs, St, Line, Col, Toks, Any) of
         {more,{Cs0,Ncol,Ntoks,Nline,Nany,Nfun}} ->
-            {more,{Cs0,Ncol,Ntoks,Nline,St,Nany,Nfun}};
+            {more,{erl_scan_continuation,Cs0,Ncol,Ntoks,Nline,St,Nany,Nfun}};
         {ok,Toks0,eof,Nline,Ncol} ->
             Res = case Toks0 of
                       [] ->
@@ -1285,7 +1326,7 @@ tabs(8)  ->  "\t\t\t\t\t\t\t\t";
 tabs(9)  ->  "\t\t\t\t\t\t\t\t\t";
 tabs(10) ->  "\t\t\t\t\t\t\t\t\t\t".
 
--spec reserved_word(atom()) -> boolean().
+-spec reserved_word(Atom :: atom()) -> boolean().
 reserved_word('after') -> true;
 reserved_word('begin') -> true;
 reserved_word('case') -> true;