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In the next commit, we will need a way to tell epp which the
default encoding should be for files that have no encoding comment.
We could add new open() and parse_file() functions with one
extra argument for the encoding, but there are already too many
variants.
To avoid having to add an additional argument to epp:open() and
epp:parse_file() each time new options are needed, introduce
epp:open/1 and epp:parse_file/2 that takes a property list with
options. Also support the new 'default_encoding' option for specifying
the default encoding for source files.
Thanks to Richard Carlsson for the idea and the implementation
of the new functionality in epp.erl.
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A note has been added that clarifies that the encoding of
the I/O-server has to be set explicitly, irrespective of
any encoding comment.
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* egil/maps/doc-module-api:
erl_docgen: Generate map() instead of #{} for maps type
stdlib: Document Maps module
stdlib: Fix maps:from_list/1 spec.
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Most of the updates have already been made in
'Fix alternative registry type annotations in supervisor',
a5412706f4185fddbac29216a49affd1e9f11da0.
Thanks to MaximMinin.
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The types array(), dict(), digraph(), gb_set(), gb_tree(), queue(),
set(), and tid() have been deprecated. They will be removed in OTP 18.0.
Instead the types array:array(), dict:dict(), digraph:graph(),
gb_set:set(), gb_tree:tree(), queue:queue(), sets:set(), and ets:tid()
can be used. (Note: it has always been necessary to use ets:tid().)
It is allowed in OTP 17.0 to locally re-define the types array(), dict(),
and so on.
New types array:array/1, dict:dict/2, gb_sets:set/1, gb_trees:tree/2,
queue:queue/1, and sets:set/1 have been added.
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OTP-11726
* sverk/ets-all-race:
erts: Fix faulty asserts in erts_sys_aligned_alloc/free
erts: Fix harmless (?) typo in beam_load.c
erts: Fix race bug in ets:all/0
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causing recently created/deleted tables to not be included/excluded.
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* hsv/add_droplast_to_lists:
Added documentation of lists:droplast/1
Added tests for lists:droplast/1 to stdlib/lists_SUITE
stdlib/lists: Add function droplast/1 This functions drops the last element of a non-empty list.
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The R16B03 release
Conflicts:
lib/sasl/vsn.mk
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* mh/dict_orddict_is_empty/OTP-11353:
Update primary bootstrap
Add dict:is_empty/1 and orddict:is_empty/1
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The R16B02 release
Conflicts:
lib/sasl/vsn.mk
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dict:size/1 runs in constant time, but orddict:size/1 does not. With
this change, the two modules stay API compatible and gain a
constant-time function for checking whether a dictionary is empty.
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Most notes.xml files will be updated in every release and cause
the kind of the problems described in the previous commit.
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* maint:
Correct the specifications of io_lib:fread/2,3
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Thanks to Chris King and Kostis Sagonas for pinpointing the bug.
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* pan/update_pcre_8.33:
Workaround TR gnu/181328, GCC 4.2.1 20070831 on FreeBSD 9.1
Clarify relation between erts_iolist_{size|to_buf}
Fix backslash in titles of manpages
Correct UTF-8 in stdlib's notes.xml
Add more tests for corner error cases in erl_bif_re.c
Add documentation of report_errors and match_limit(_recursion)
Add match_limit and match_limit_recursion options
Add return_errors option to re:run/3
Add README for updating PCRE
Add documentation of extensions to re module
Add new options to Erlang re interface and mend dupnames
Update PCRE doc part of re.xml to PCRE 8.33 state
Integrate new PCRE test suites
Integrate patch for PCRE bug id 1370
Handle CRLF correctly in global regexp
Add erts_prefix to pcre_library and update erl_bif_re
Update to PCRE 8.33, w/o the erts_ prefix added
OTP-11204
OTP-11205
OTP-10285
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The following compile options are documented:
no_start_optimize
ucp
never_utf
The following run options are documented:
notempty_atstart
{capture, all_names}
The following new functions are documented:
re:inspect/2
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* maint:
stdlib: Include file:all datatypes in filelib
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This does not include any documentation of the new options,
namely 'ucp', 'never_utf', 'notempty_atstart', 'no_start_optimize' or
{capture, all_names, ...} and re:inspect/1.
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`I` should be `If`
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The R16B01 release
Conflicts:
lib/sasl/vsn.mk
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* nox/erl_eval-receive/OTP-11137:
Updated primary bootstrap for erl_eval
Added preloaded prim_eval
Fix receive support in erl_eval with a BEAM module
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Using the low-level BEAM instructions, we can loop over each message in
the process queue and removes the first message that matches, without
receiving them all to later send them back to itself.
The function prim_eval:'receive'/2 is equivalent to the
following pseudo-code:
'receive'(F, T) ->
RESET MESSAGE QUEUE POINTER,
LOOP:
case PEEK CURRENT MESSAGE WITH TIMEOUT T of
{ok,Msg} ->
case F(Msg) of
nomatch ->
DECREMENT TIMEOUT T,
ADVANCE MESSAGE QUEUE POINTER,
GOTO LOOP;
Result ->
RESET MESSAGE QUEUE POINTER,
Result
end;
timeout ->
RESET MESSAGE QUEUE POINTER,
timeout
end.
To not break Dialyzer and other tools, we use a stub Erlang module which
abstract code is forcefully inserted into prim_inet.erl afterwards
compilation.
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In an email to erlang-questions, Bengt Kleberg wrote:
When I use c:ls/1 it reminds me so much of Unix "ls" that I
expect c:ls("filename") to work. The resulting error surprises
me every time (not the same day).
While teaching c:ls/1 to show non-directory files, update the
error handling to make use of the POSIX error codes from
file:list_dir/1 and file:format_error/1 (which had not been
invented when the c module was first implemented).
Suggested-by: Bengt Kleberg
Test-suite-by: Bengt Kleberg
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This function is used all over the place in OTP itself and people
sometimes want that functionality, they may as well not reimplement it
themselves.
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These were documented in the stdlib user's guide, but not in the
reference manual for erl. This has now been corrected.
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* sv/stdlib/sys-get-state/OTP-11013:
Removed ?line macro
add sys:get_state/1,2 and sys:replace_state/2,3
update sys:get_status/2,3 documentation for gen_event
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At Erlang Factory 2013 there was discussion during one of the talks about
the sys:get_status functions and how useful they were for debugging. Geoff
Cant mentioned it would be very useful if the sys module also provided
functions to use while debugging to get just the state of a process and
also to be able to replace the state of a process, and many others in the
audience appeared to agree.
The sys:get_state/1,2 functions return the state of a gen_server, gen_fsm,
or gen_event process. The return value varies depending on the process
type: process state for a gen_server, state name and state data for a
gen_fsm, and handler module, handler id, and handler state for each handler
registered in a gen_event process.
The sys:replace_state/2,3 functions allow the state of a gen_server,
gen_fsm, or gen_event process to be replaced with a new state. These
functions take a function argument that updates or replaces the process
state; using a function to change the state eliminates the race condition
of first reading the state via sys:get_state/1 or sys:get_state/2, using
its return value to create a new state, and then replacing the old state
with the new state, since during that time the process might have received
other calls or messages that could have changed its state.
* For a gen_server process, the state replacement function takes the
process state as an argument and returns a new state.
* For a gen_fsm process, the state replacement function gets a tuple of
{StateName, StateData} and returns a similar tuple that specifies a new
state name, new state data, or both.
* For a gen_event process, the state replacement function is called for
each registered event handler. It gets a tuple {Module, Id, HandlerState}
and returns a similar tuple that specifies the same Module and Id values
but may specify a different value for HandlerState.
If the state replacement function crashes or results in an error, the
original state of a gen_server or gen_fsm process is maintained; if such a
crash occurs for a gen_event process, the original state of the event
handler for which the state replacement function was called is maintained,
but the states of other event handlers of the same gen_event process may
still be updated if no errors or crashes occur while replacing their
states.
Add documentation for sys:get_state/1,2 and sys:replace_state/2,3. The
documentation explicitly notes that the functions are intended for use
during debugging.
Add new tests for these functions to gen_server_SUITE, gen_fsm_SUITE, and
gen_event_SUITE.
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Modify the documentation for the sys:get_status/2,3 functions to reflect
that they also work on gen_event processes, and add a cross reference for
gen_event:format_status/2 to go along with the existing cross references
for gen_server and gen_fsm.
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A bug has been fixed: when given the option {encoding,utf8} a list of
floating point numbers (in the correct interval) was mistakenly
returned as a string.
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