* lisp/emacs-lisp/ewoc.el (ewoc--refresh-node): Save and restore point line
and column offset.
(eowc-map) (ewoc--invalidate) (ewoc-set-hf): Don't use save-excursion
* lisp/vc/vc-dir.el (vc-dir-update): Don't save/restore point on calling
'ewoc-invalidate'.
* lisp/files.el (directory-free-space-program): Doc fix; there is no
need to repeat that its obsolete here since it will be shown by
customize, describe-variable, etc. automatically.
* doc/lispref/customize.texi (Common Keywords): Document it.
* lisp/cus-edit.el (custom-face-value-create): Use a widget
instead of a button so that TAB works (bug#20664).
* lisp/wid-edit.el (face-link): New widget.
(widget-face-link-action): New action.
* test/lisp/net/dbus-tests.el (dbus-test04-register-method):
Do not check for error message text.
(dbus--test-signal-handler): Fix docstring.
(dbus--test-timeout-handler): New defun.
(dbus-test05-register-signal)
(dbus-test06-register-property-emits-signal): Use it.
* doc/emacs/basic.texi (Basic Undo): Document the easiest way to
type the undo key.
* etc/tutorials/TUTORIAL: Describe typing C-_ without the Shift
key.
* lisp/wid-edit.el (widget-button--check-and-call-button): Record the
ending position of event, because we might need it when
the :mouse-down-action function returns non-nil (bug#20664).
* lisp/emacs-lisp/autoload.el (autoload-find-generated-file):
Users may have read-only-mode in find-file-hooks (bug#43460) so
just disable all the hooks here.
* lisp/progmodes/cperl-mode.el (cperl-style-alist)
(cperl-set-style): Add indentation style recommended by Damian Conway's
book "Perl Best Practices".
* test/lisp/progmodes/cperl-mode-tests.el
(cperl-mode-test-indent-styles): Add a test to verify indentation
and unraveling of conditionals (bug#43457).
Add a command 'lossage-size' to set the maximum
number or recorded keystrokes (Bug#38796).
* src/keyboard.c (lossage_limit):
Static variable with the current lossage size limit.
(MIN_NUM_RECENT_KEYS): Renamed from NUM_RECENT_KEYS.
Set it as 100 and use it as the minimum value for lossage_limit.
Keep the same default for the vector size as before (300).
(lossage-size): New command.
(update_recent_keys): Helper function.
(command_loop_1)
(record_char)
(recent-keys)
(syms_of_keyboard): Use lossage_limit as the vector size.
* lisp/help.el (view-lossage): Mention the new command in the docstring.
* etc/NEWS (Changes in Emacs 28.1): Announce this change.
* doc/emacs/help.texi (Misc Help): Update manual.
* test/src/keyboard-tests.el (keyboard-lossage-size): Add test.
* lisp/bindings.el (column-number-indicator-zero-based): Make
obsolete (bug#28648).
(mode-line-position-column-line-format): New variable.
(mode-line-position--column-line-properties): New const.
(mode-line-position): Use it.
* doc/misc/dbus.texi (Errors and Events):
* etc/NEWS: D-Bus events keep the type information of their arguments.
* lisp/net/dbus.el (dbus-check-event): Fix docstring.
(dbus-delete-types, dbus-flatten-types): New defuns.
(dbus-handle-event, dbus-register-property, dbus-property-handler):
Handle type information.
(dbus-set-property): Fix thinko.
* src/dbusbind.c (XD_BASIC_DBUS_TYPE): Simplify.
(xd_dbus_type_to_symbol): New function.
(xd_retrieve_arg): Return type information for the arguments.
(xd_read_message_1): Return type information for the error name.
(dbus-registered-objects-table): Fix docstring.
* lisp/dired.el (dired-get-filename): dired-current-directory
can't be called before the dired buffer has been set up.
(add-hook 'dired-mode-hook 'dired-sort-toggle) calls
dired-get-filename in a way that exposes this problem, so avoid
it.
* lisp/xwdget.el (xwidget-webkit-download-dir)
(xwidget-webkit-save-as-file): Set version to 28.1 because the patch
was introduced in Emacs 28.0.50.
* src/nsxwidget.m: Fix typo.
* lisp/calc/calccomp.el (math-compose-sqrt): Use a square root
character, if possible (bug#22919). Suggested by Zephyr Pellerin
<zephyr.pellerin@gmail.com>.
* src/xdisp.c (display_mode_element): Use parse_str_as_multibyte,
not multibyte_chars_in_text, to determine whether mode-line spec
shall be displayed as a multibyte or unibyte string. We cannot
use multibyte_chars_in_text here because it aborts when it finds
raw bytes in the spec string. (Bug#43409)
Scanning through fonts can be very slow, especially with the 'x' font
backend, and the result is almost always not used. Stop looking for a
font as soon as one is found rather than scanning all the backends.
* src/font.c (font_list_entities): Stop scanning through the font
backends as soon as we find a match unless
'query-all-font-backends is set (Bug#43177).
(syms_of_font): New variable 'query-all-font-backends', default
false.
