* lisp/calendar/appt.el (appt-add): Check the provided time-string for
validity immediately after reading it rather than after reading all
the parameters. (Bug#54210)
It doesn't make sense to prevent the return frame or movement
frame from being deleted, but we should at least protect them
from garbage collection.
* src/alloc.c (garbage_collect): Call mark_xterm.
* src/xterm.c (x_dnd_begin_drag_and_drop)
(x_dnd_cleanup_drag_and_drop): Clear movement and return frames
upon DND completion.
(mark_xterm): Mark those frames.
* src/xterm.h: Update prototypes.
* lisp/minibuffer.el (completion--insert-one-column) : Remove the extra
new-line at the end.
* lisp/simple.el (next-completion) : Fix behavior when
completion-wrap-movement and remove bobp and eobp. This removes the
extra tab ad the end of the list before wrapping or going to the
minibuffer and apparently also fixes bug#54374
(switch-to-completions) : Simplify condition code and remove comment not
applicable anymore.
* src/xterm.c (x_dnd_send_unsupported_drop): Allow dropping to
the root window.
(handle_one_xevent): Send unsupported drops to the last toplevel
instead of the target window.
* src/xselect.c (x_own_selection): Export function.
(x_handle_selection_request): Handle selection requests to the
pending DND time.
(x_set_pending_dnd_time): New function.
* src/xterm.c (x_dnd_send_unsupported_drop): New function.
Implement according to the suggestions in the XDND protocol
specification.
(x_dnd_get_target_window): Return the toplevel window as well.
(x_dnd_cleanup_drag_and_drop, x_dnd_begin_drag_and_drop)
(x_dnd_update_state, handle_one_xevent): Send unsupported drops
and use last seen toplevel instead of target for `return_frame'.
* src/xterm.h: Update prototypes.
* lisp/mouse.el (mouse-drag-and-drop-region): Allow dragging to
the current frame if we know `return-frame' doesn't work.
* lisp/term/haiku-win.el (haiku-dnd-drag-handler): New function.
* src/haiku_support.cc (MouseMoved): Don't send drag motion
events for the drag frame.
* src/haikuselect.c (haiku_note_drag_motion_1)
(haiku_note_drag_motion_2, haiku_note_drag_motion): New
functions.
(syms_of_haikuselect): New variable `haiku-drag-track-function'.
* src/haikuterm.c (haiku_read_socket): Note mouse motion in that
case.q
* src/haikuterm.h: Update prototypes.
* lisp/emacs-lisp/oclosure.el (oclosure--slot-index)
(oclosure--slot-value, oclosure--set-slot-value): New functions.
* lisp/emacs-lisp/eieio-core.el (eieio-oset, eieio-oref):
Consolidate the type test. Use `oclosure--(set-)slot-value`.
(eieio--validate-slot-value, eieio--validate-class-slot-value):
Don't presume `class` is an EIEIO class.
(eieio--class): Fix bogus `:type` info.
(eieio--object-class): Simplify.
(eieio--known-slot-name-p): New function.
(eieio-oref, eieio-oref-default, eieio-oset-default): Use it.
* test/lisp/emacs-lisp/oclosure-tests.el: Require `eieio`.
(oclosure-test): Make `name` field mutable.
(oclosure-test-slot-value): New test.
* doc/misc/ses.texi (The Basics): Document that ses-jump may be
customized.
(Customizing @acronym{SES}): Document new customisations for ses-jump.
* lisp/ses.el (ses-jump-cell-name-function)
(ses-jump-prefix-function): New defcustoms.
(ses-jump-prefix): New defun.
(ses-jump): Make ses-jump use the new defcustoms.
* test/lisp/ses-tests.el (ses-jump-B2-prefix-arg)
(ses-jump-B2-lowcase, ses-jump-B2-lowcase-keys)
(ses-jump-B2-symbol, ses-jump-B2-renamed): New tests.
An explict stack of objects to be traversed for marking replaces
recursion for most common object types: conses, vectors, records, hash
tables, symbols, functions etc. Recursion is still used for other
types but those are less common and thus not as likely to cause a
problem.
The stack grows dynamically as required which eliminates almost all C
stack overflow crashes in the GC. There is also a nontrivial GC
performance improvement.
* src/alloc.c (GC_REMEMBER_LAST_MARKED, GC_CDR_COUNT): New.
(mark_char_table, struct mark_entry):
Remove (subsumed into process_mark_stack).
(struct mark_entry, struct mark_stack, mark_stk)
(mark_stack_empty_p, mark_stack_pop, grow_mark_stack)
(mark_stack_push_value, mark_stack_push_values)
(process_mark_stack): New.
(mark_object, mark_objects):
Just push the object(s) and let process_mark_stack do the work.
posix_spawn was restoring the wrong signal set, which still had
SIGCHLD and SIGINT masked, causing problems with child processes that
spawned child processes. (Bug#54667)
See the thread ending at
https://lists.gnu.org/archive/html/emacs-devel/2022-03/msg00067.html
for more details.
* src/callproc.c (emacs_spawn): Pass oldset parameter.
(emacs_posix_spawn_init_attributes): Use correct oldset.
(emacs_posix_spawn_init): Remove intermediate function.
* lisp/dnd.el (dnd-handle-movement): Select the window specified
in posn.
* lisp/term/x-win.el (x-dnd-movement): New function.
(x-dnd-movement-function): Set it as the default.
* src/frame.c (delete_frame): Prevent deleting the drop source
frame.
* src/xterm.c (x_dnd_send_position): Set new mouse movement
flags if the target window is one of our own frames.
(x_dnd_begin_drag_and_drop): Call DND movement function whenever
appropriate.
(x_free_frame_resources): Remove useless code.
(syms_of_xterm): New defvar `x-dnd-movement-function'.
* src/xterm.h: Update prototypes.
* src/haiku_support.cc (be_drag_message): Set new DND flag.
(be_drag_and_drop_in_progress): New function.
* src/haiku_support.h: Update prototypes.
* src/haikuterm.c (haiku_read_socket): Don't store DND motion
events if DND is in progress.
Inlining these trivial functions gives a healthy speed boost to many
common functions such as `sort`, `mapcar` etc.
* src/eval.c (call0, ..., call8): Move functions...
* src/lisp.h (call0, ..., call8): ...here and declare them inline.
Since <, <=, > and >= have their own byte-ops, the corresponding
functions are mostly used as arguments to higher-order functions.
This optimisation is particularly beneficial for sorting, where the
comparison function is time-critical.
* src/data.c (Flss, Fgtr, Fleq, Fgeq):
* src/fileio.c (Fcar_less_than_car):
Fast path for calls with 2 fixnum arguments.
Since string-lessp has its own byte-op, using it is much faster than
calling string-greaterp even with the need to bind a temporary
variable.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-string-greaterp): New.
(string-greaterp, string>): Set byte-optimizer.
Since this function is commonly used as a sorting predicate
where it is time-critical, this is a useful optimisation.
* src/fns.c (Fstring_lessp): Add fast path for the common case
when both arguments are unibyte.
* test/src/fns-tests.el (fns-tests--string-lessp-cases)
(fns-tests-string-lessp): New test.
* xterm.c (struct x_client_list_window): New fields for frame
extents.
(x_dnd_compute_toplevels): Set window frame extents.
(x_dnd_get_target_window_1): Return None if the mouse is in a
frame extent.
(x_dnd_get_target_window): Likewise.
* doc/lispref/frames.texi (Drag and Drop): Document new meaning
of `return-frame' in `x-begin-drag'.
* lisp/mouse.el (mouse-drag-and-drop-region): Use `now' when
calling `x-begin-drag'.
* src/xfns.c (Fx_begin_drag): Update doc string.
* src/xterm.c (x_dnd_begin_drag_and_drop): Accept return_frame
as a Lisp_Object and handle Qnow correctly.
(XTmouse_position): Ignore tooltip frames when processing
`drag-source'.
(syms_of_xterm): New defsym `now'.
* src/xterm.h: Update prototypes.
Add a new `record_unwind_protect_ptr_mark` function for use with C data
structures that use the specpdl for clean-up but also contain possibly
unique references to Lisp objects.
* src/eval.c (record_unwind_protect_ptr_mark): New.
(record_unwind_protect_module, set_unwind_protect_ptr):
Set the mark function to NULL.
(mark_specpdl): Call the mark function if present.
* src/lisp.h (unwind_ptr): Add a mark function pointer to the
SPECPDL_UNWIND_PTR case.
Previously, Eshell would get confused and think the following command
was unterminated due to the second double-quote looking like it was
escaped:
echo "\\"
* lisp/eshell/esh-util.el (eshell-find-delimiter): Correct docstring
and treat '\' as an escapeable character when using backslash escapes.
* test/lisp/eshell/eshell-tests.el
(eshell-test/escape-special-quoted): Adapt test.
* lisp/emacs-lisp/easy-mmode.el (easy-mmode--arg-docstring): Allow
saying whether it's a global minor mode or not.
(easy-mmode--mode-docstring): Use it.
(define-minor-mode): Pass in the data.
* doc/lispref/frames.texi (Mouse Tracking):
* etc/NEWS: Announce new `drag-source' value of `track-mouse'.
* lisp/mouse.el (mouse-drag-and-drop-region): Use new value of
`track-mouse' during interprogram drag and drop.
* src/keyboard.c (make_lispy_position): Handle nil values of f
correctly.
* src/xdisp.c (define_frame_cursor1): Ignore if `drag-source' as
well.
(syms_of_xdisp): New defsym `drag-source'.
* src/xterm.c (XTmouse_position): Implement `drag-source'.
(mouse_or_wdesc_frame): Likewise.
* lisp/term/haiku-win.el (haiku-drag-and-drop): Handle special
drag and drop motion events.
* src/haiku_support.cc (MouseMoved): Set `dnd_message' flag.
* src/haiku_support.h (struct haiku_mouse_motion_event): New
member `dnd_message'.
* src/haikuterm.c (haiku_read_socket): Create special DND events
when the mouse moves with a drop message.
* doc/emacs/frames.texi (Drag and Drop):
* etc/NEWS: Document new options 'dnd-scroll-margin' and
'dnd-indicate-insertion-point'.
* lisp/dnd.el (dnd-protocol-alist):
(dnd-open-remote-file-function):
(dnd-open-file-other-window): Add right group to defcustoms.
(dnd-scroll-margin, dnd-indicate-insertion-point): New user
options.
(dnd-handle-movement): New function.
* lisp/x-dnd.el (x-dnd-handle-xdnd):
(x-dnd-handle-motif): Call `dnd-handle-movement' when
appropriate.
* lisp/subr.el (ensure-empty-lines, string-lines): Moved from
subr-x so that they can be used in early bootstrap files.
* lisp/emacs-lisp/easy-mmode.el (easy-mmode--mode-docstring):
Don't use string-empty-p because of bootstrap issues.
