* src/nsselect.m (Fns_begin_drag): New argument `return-frame'.
(syms_of_nsselect): New defsym.
* src/nsterm.h (EmacsWindow): New fields.
* src/nsterm.m (ns_read_socket): Split parts off to
ns_read_socket_1.
(ns_read_socket_1): New function.
(ns_flush_display): Use that function instead.
([EmacsWindow beginDrag:forPasteboard:]): Update for
return-frame.
* src/nsterm.m (ns_mouse_position): Implement `drag-source'
on NS.
([EmacsView draggingUpdated:]): Add autorelease pool around
callbacks.
([EmacsWindow beginDrag:forPasteboard:]): Block input around
dragImage.
* src/xterm.c (x_get_current_wm_state): When lint checking,
initialize reply_data to a non-null dummy value instead of to a
null one. This pacifies GCC 12 -Wanalyzer-null-dereference.
* src/lisp.h (CHAR_TABLE_REF_ASCII): Refactor as a straightforward
for-loop. Redo an if-then-else to be an (!if)-else-then as this
is a bit cleaner, and it also works around GCC bug 105755.
* src/coding.c (detect_coding): Always initialize all
components of detect_info, so that detect_coding_utf_8 etc.
do not have undefined behavior when they read detect_info.checked.
This bug is not likely to cause problems on real systems.
Problem found by GCC 12 -fanalyzer.
(detect_coding_system): Use consistent style with detect_coding
initialization.
* lib-src/etags.c (readline_internal): Do not copy a pointer to
freed storage, as that has undefined behavior even if the pointer
is not dereferenced.
(relative_filename): Avoid a backward scan by remembering where
the last slash was. This is a bit faster, and pacifies a GCC
false alarm.
(project-find-file): Use relative file name of the
currently visited file as an alternative default value.
(project-find-file-in, project-find-dir): Use 'file-name-history' (bug#55267).
Restructure the reader to be nonrecursive so that it is not limited by
the C stack or crashes Emacs when reading deeply nested data.
This also improves performance.
A few minor bugs were fixed:
- (a .{NBSP}b) where {NBSP} is a non-breaking space (U+00A0) is now
the dotted pair (a . b), not the 3-element list (a \. b), since U+00A0
is treated as whitespace everywhere else.
- #_ with no symbol following is now equivalent to ## (empty interned
symbol), not #: (empty uninterned symbol).
* src/alloc.c (garbage_collect): Call mark_lread.
* src/lread.c (readevalloop): Use read0 instead of read_list.
(stackbufsize): Increase to 1024, now that read0 isn't recursive.
(invalid_radix_integer): Buffer overflow check.
(read1, read_list, read_vector): Remove.
(read_char_literal, read_string_literal)
(hash_table_from_plist, record_from_list, vector_from_rev_list)
(bytecode_from_rev_list, char_table_from_rev_list)
(sub_char_table_from_rev_list, string_props_from_rev_list)
(read_bool_vector, skip_lazy_string, symbol_char_span)
(skip_space_and_comments)
(enum read_entry_type, struct read_stack_entry, struct read_stack)
(rdstack, mark_lread, read_stack_top, read_stack_pop)
(read_stack_empty_p, grow_read_stack, read_stack_push): New.
(read0): Rewrite to be nonrecursive.
* test/src/lread-tests.el (lread-deeply-nested, lread-misc): New tests.
* src/atimer.c (set_alarm): If the atimer has already expired, signal
it right away instead of postponing it further. Previously this could
occur repeatedly, blocking atimers indefinitely.
Also only use `alarm` as fallback if `setitimer` is unavailable, not
both at the same time (which makes no sense, and they both typically
use the same mechanism behind the curtains).
* test/src/eval-tests.el (eval-tests/funcall-with-delayed-message):
New test, verifying proper functioning of funcall-with-delayed-message
which also serves as test for this bug (which also caused
debug-timer-check to fail, but that test is only run when Emacs is
built with enable-checking).
* lisp/language/indonesian.el ("Rejang"): New language environment.
Add composition rules for Rejang. Add sample text and input
method.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Rejang.
* lisp/leim/quail/indonesian.el ("rejang"): New input method.
* etc/HELLO: Add a Rejang greeting.
* etc/NEWS: Announce the new language environment.
* lisp/progmodes/flymake.el (flymake-mode-map)
(flymake-diagnostics-buffer-mode-map): Stop using
`defvar-keymap', since Flymake only requires Emacs 26.1.
* src/haiku_support.cc (EmacsScreenChangeMonitor): Fix comment.
* src/haikufns.c (haiku_set_z_group): Ask for a position update,
since changing the Z group might change the feel of the window.
* src/xselect.c (wait_for_property_change):
(x_get_foreign_selection): Use `x_wait_for_cell_change' if input
is blocked. (bug#22214)
* src/xterm.c (x_wait_for_cell_change): New function.
* src/xterm.h: Update prototypes.
* lisp/term/ns-win.el (ns-handle-drag-motion): New function.
* src/nsterm.m ([EmacsView draggingUpdated:]): Call that
function instead.
(syms_of_nsterm): Clean up old style defvars and add new
defvar for the DND drag function.
* src/xfns.c (Fx_begin_drag): Alloca target list.
* src/xterm.c (x_set_dnd_targets): Copy the given targets list.
(x_dnd_begin_drag_and_drop): Record freeing the targets list on
the specpdl.
(handle_one_xevent, x_dnd_cleanup_drag_and_drop)
(x_connection_closed, x_delete_terminal): Stop calling
`x_set_dnd_targets' manually to free the targets list.
* lisp/calendar/iso8601.el (iso8601--zone-dst): New function.
(iso8601-parse, iso8601-parse-time): Use it.
(iso8601--decoded-time): Default dst to -1, not nil.
* test/lisp/calendar/iso8601-tests.el (test-iso8601-combined)
(standard-test-time-of-day-zone): Adjust to new behavior.
Wrap the file-name prompt within `with-connection-local-variables` as
it was before the previous change.
While at it, make sure we set the `default-directory` of
the actual shell buffer after querying the user.
* lisp/language/indonesian.el ("Batak"): New language environment.
Add composition rules for Batak. Add sample text and input
method.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Batak.
* lisp/leim/quail/indonesian.el ("batak"): New input method.
Rename TITLE of balinese, javanese and sundanese in
("quail-define-package").
* etc/HELLO: Add a Batak greeting.
* etc/NEWS: Announce the new language environment and its
input method.
