Remove some ineffectual calls to purecopy

* lisp/dired.el (dired-chown-program, dired-trivial-filenames):
* lisp/emacs-lisp/shortdoc.el (shortdoc--display-function):
* lisp/help-fns.el (help-fns--mention-shortdoc-groups):
* lisp/mail/mail-extr.el (mail-extr-full-name-prefixes)
(mail-extr-all-letters-but-separators, mail-extr-all-letters)
(mail-extr-first-letters, mail-extr-last-letters)
(mail-extr-bad-dot-pattern, mail-extr-full-name-suffix-pattern)
(mail-extr-alternative-address-pattern)
(mail-extr-trailing-comment-start-pattern)
(mail-extr-name-pattern, mail-extr-telephone-extension-pattern)
(mail-extr-ham-call-sign-pattern, mail-extr-normal-name-pattern)
(mail-extr-two-name-pattern)
(mail-extr-listserv-list-name-pattern)
(mail-extr-stupid-vms-date-stamp-pattern)
(mail-extr-hz-embedded-gb-encoded-chinese-pattern)
(mail-extr-x400-encoded-address-pattern)
(mail-extr-x400-encoded-address-field-pattern-format)
(mail-extr-x400-encoded-address-surname-pattern)
(mail-extr-x400-encoded-address-given-name-pattern)
(mail-extr-x400-encoded-address-full-name-pattern): Remove
ineffectual calls to purecopy.

Rename new option to browse-url-default-scheme

* lisp/net/browse-url.el (browse-url-default-scheme): Rename from
'browse-url-guess-default-scheme'.  Update caller.
Suggested by Eli Zaretskii <eliz@gnu.org>.

Speed up string-to-unibyte

* src/character.h (str_to_unibyte):
* src/character.c (str_to_unibyte): Remove.
* src/fns.c (Fstring_to_unibyte): Ditch the call to str_to_unibyte and
the unnecessary heap allocation.  Write new, faster code.
* test/src/fns-tests.el (fns--string-to-unibyte): New test.

Fix Tramp test environment on hydra.nixos.org

* lisp/emacs-lisp/ert-x.el (tramp-remote-path): Declare.  Adapt
`tramp-remote-path' on hydra.  (Bug#56424)

* test/lisp/dnd-tests.el (dnd-tests-begin-drag-files): Remove instrumentation.

* test/lisp/filenotify-tests.el:
* test/lisp/shadowfile-tests.el:
* test/lisp/net/tramp-tests.el: Do not adapt `tramp-remote-path'.

Don't use purecopy in dictionary.el

* lisp/net/dictionary.el (dictionary-pre-buffer)
(dictionary-display-dictionary-line)
(dictionary-display-more-info, dictionary-display-strategy-line)
(dictionary-display-match-lines): Don't use purecopy; it has no
effect here.

* src/dired.c (directory_files_internal): Update comment

* src/dired.c (directory_files_internal): Fix bug#56469

Avoid concatenating encoded and decoded file names.

New user option browse-url-guess-default-scheme

* lisp/net/browse-url.el (browse-url-guess-default-scheme): New
user option.
(browse-url-url-at-point): Use above new user option.

; Use example.org in an example

* lisp/net/browse-url.el (browse-url-filename-alist): Use example.org
to be more RFC2606 compliant.

* doc/misc/tramp.texi (Frequently Asked Questions): Fix formatting.

Minor fixes to WM_DELETE_WINDOW handling

* src/xterm.c (handle_one_xevent): Only handle WM_DELETE_WINDOW
to toplevel windows, and set event timestamp.

Make browse-url.el support for plain "mozilla" obsolete

* lisp/net/browse-url.el (browse-url-mozilla-program)
(browse-url-mozilla-arguments)
(browse-url-mozilla-startup-arguments)
(browse-url-mozilla-new-window-is-tab, browse-url-mozilla)
(browse-url-mozilla-sentinel): Make obsolete.  (Bug#56464)
(browse-url--browser-defcustom-type, browse-url-default-browser):
Don't refer to above obsolete function 'browse-url-mozilla'.

* lisp/net/browse-url.el: Improve commentary.

; * test/lisp/dnd-tests.el (dnd-tests-begin-drag-files): Instrument.

; * lisp/startup.el (command-line-1): Fix last change.

Fix the startup.el behavior when 'face-font-rescale-alist' is non-nil

* lisp/startup.el (command-line-1, normal-top-level): Reset the
default face's font only if 'face-font-rescale-alist' affects that
face's font.  For the use case where it matters, see
https://lists.gnu.org/archive/html/emacs-devel/2022-07/msg00157.html.
Make the 'inhibit-startup-screen' and non-inhibit branches behave
the same in that case.

; * src/composite.c (Fcomposition_get_gstring): Fix compiler warnings.

Fix build with old sqlite libraries

* src/sqlite.c (Fsqlite_open): Don't use SQLITE_OPEN_FULLMUTEX
if not defined.

Speed up 'find_automatic_composition'

* src/composite.c (find_automatic_composition): Limit search
backward in buffers to the first newline.  Fix commentary.

Don't sync for errors setting up DND targets and toplevels

* src/xterm.c (xm_setup_dnd_targets, x_dnd_free_toplevels)
(x_dnd_compute_toplevels): Avoid catching errors synchronously.

Merge from origin/emacs-28

115261b323 ; Improve wording of recently-changed doc strings.

Make `x-no-window-manager' cover user time as well

* src/xterm.c (x_update_frame_user_time_window):
(x_wm_supports_1): Respect `x-no-window-manager'.  This makes
testing some features easier.

* test/Makefile.in (WRITE_LOG): Always be verbose on hydra.nixos.

Make STRING_SET_MULTIBYTE an inline function

* src/lisp.h (STRING_SET_MULTIBYTE): Make it into a function.

* src/composite.c (Fcomposition_get_gstring):
Prefer `make_multibyte_string` over Fconcat+STRING_SET_MULTIBYTE.

Exclude platform specific browsers from custom type

* lisp/net/browse-url.el (browse-url--browser-defcustom-type):
Don't include platform specific browsers on other platforms.

* lisp/net/eww.el (eww): Improve docstring.

Make browse-url-default-browser fall back to EWW

* lisp/net/browse-url.el (browse-url-default-browser): Fall back
to EWW.

Drop support for the dead third-party w3 package

The w3 package was removed from GNU ELPA in 2020 as it doesn't run on
a recent Emacs, and development had stopped over a decade before that.
If anyone wants to revive the w3 package, they should look this all
over, but it doesn't make sense for us to maintain this support code.
Ref: https://debbugs.gnu.org/25395

* lisp/net/browse-url.el (browse-url-w3): Make obsolete.
(browse-url--browser-defcustom-type)
(browse-url-default-browser):
* lisp/ffap.el (ffap-url-at-point, ffap-file-at-point):
* lisp/net/newst-plainview.el (newsticker--buffer-do-insert-text):
* lisp/net/newst-reader.el (newsticker-html-renderer)
(newsticker-show-news):
* lisp/net/newst-treeview.el (newsticker--treeview-render-text):
* lisp/org/ol.el (org-store-link):
* lisp/url/url.el (url-retrieve): Remove w3 support code and related
documentation and comments.  (Bug#56435)

* test/lisp/net/browse-url-tests.el
(browse-url-tests-browser-kind): Adjust test for above changes.

* etc/TODO: Remove TODO to install W3.
* doc/misc/org.org (Handling Links): Don't mention W3.
* lisp/msb.el (msb--few-menus, msb--very-many-menus): Check for
eww-mode instead of w3-mode.

Improve introductory section of TRAMP manual

* doc/misc/tramp.texi (Top, Overview): Explain what TRAMP is
without contrasting to Ange FTP.  (Bug#56440)
(Frequently Asked Questions): Move information on Ange FTP here.

Prefer defvar-keymap in net/*.el

* lisp/net/dictionary.el (dictionary-mode-map):
* lisp/net/dig.el (dig-mode-map):
* lisp/net/eudc-hotlist.el (eudc-hotlist-mode-map):
* lisp/net/eudc.el (eudc-mode-map):
* lisp/net/mairix.el (mairix-searches-mode-map):
* lisp/net/newst-treeview.el
(newsticker-treeview-list-sort-button-map)
(newsticker-treeview-mode-map):
* lisp/net/quickurl.el (quickurl-list-mode-map):
* lisp/net/rcirc.el (rcirc-mode-map)
(rcirc-multiline-minor-mode-map, rcirc-track-minor-mode-map):
* lisp/net/rlogin.el (rlogin-mode-map):
* lisp/net/secrets.el (secrets-mode-map):
* lisp/net/sieve-mode.el (sieve-mode-map):
* lisp/net/sieve.el (sieve-manage-mode-map):
* lisp/net/snmp-mode.el (snmp-mode-map):
* lisp/net/telnet.el (telnet-mode-map): Prefer defvar-keymap.

Avoid extra sync and atom name query on ending Motif DND

* src/xterm.c (handle_one_xevent): Use `x_dnd_action_symbol' to
set the Motif action instead.

Delete obsolete variable tooltip-use-echo-area

* lisp/tooltip.el (tooltip-use-echo-area): Delete variable
obsolete since 24.1.
(tooltip-help-tips):
* lisp/progmodes/gud.el (gud-tooltip-process-output)
(gud-tooltip-tips): Don't use above deleted variable.

* lisp/woman.el (woman-fill-column): Increase default to 70.

* lisp/mh-e/mh-mime.el (mh-small-show-buffer-p): Double value.

Delete obsolete variable font-lock-maximum-size

* lisp/font-lock.el (font-lock-maximum-size): Delete variable
obsolete since 24.1.
(font-lock-initial-fontify):
* lisp/mail/rmail.el (rmail-variables):
* lisp/mh-e/mh-mime.el (mh-small-show-buffer-p): Don't use above
deleted variable.
* lisp/font-core.el (font-lock-mode):
* lisp/font-lock.el:
* lisp/info.el: Don't mention above deleted variable.

; * lisp/emacs-lisp/cconv.el (cconv--var-classification): Optimise.

New command emacs-news-toggle-tag

* lisp/textmodes/emacs-news-mode.el (emacs-news-toggle-tag): New
command.
(emacs-news-mode-map): Bind above new command to "C-c C-t".
* test/lisp/textmodes/emacs-news-mode-resources/toggle-tag.erts:
* test/lisp/textmodes/emacs-news-mode-tests.el: New files.

Improve ert-test-erts-file documentation

* lisp/emacs-lisp/ert.el (ert-test-erts-file): Improve docstring.
* doc/misc/ert.texi (erts files): Fix typo.

Bind M-G unconditionally in Dired

* lisp/dired-x.el: Move dired-goto-subdir binding from here...
* lisp/dired.el (dired-mode-map): ...to here.  (Bug#21981)

* doc/misc/dired-x.texi (Miscellaneous Commands): Move
documentation of above command from here...
* doc/emacs/dired.texi (Subdirectory Motion): ...to here.

Move dired-buffer-more-recently-used-p to dired.el

* lisp/dired-x.el (dired-buffer-more-recently-used-p): Move from
here...
* lisp/dired.el (dired-buffer-more-recently-used-p): ...to here.

Delete obsolete variable buffer-substring-filters

* lisp/simple.el (buffer-substring-filters): Delete variable obsolete
since 24.1.
(buffer-substring--filter): Adjust for deleted variable.
* doc/lispref/text.texi (Buffer Contents): Adjust documentation
for deleted variable.

; Rename 'ffap--accept-or-reject-p'

* lisp/ffap.el (ffap-accept-or-reject-p): Renamed from
'ffap--accept-or-reject-p'; all users changed.  Doc fix.

Improve drag-and-drop emulation time handling

* src/xselect.c (x_handle_selection_request): Use
display-specific pending DND time.
(x_set_pending_dnd_time): Delete function.
* src/xterm.c (x_dnd_do_unsupported_drop, handle_one_xevent):
Set dpyinfo->pending_dnd_time instead.
* src/xterm.h (struct x_display_info): New field
`pending_dnd_time'.  Make handling pending drops
display-specific to avoid interference when there are multiple
displays.

; Improve wording of recently-changed doc strings.

* lisp/simple.el (auto-save-mode):
* lisp/files.el (auto-save-visited-mode): Improve wording of the
doc strings.

Fix race conditions handling selection clear events on Haiku

* src/haiku_select.cc (be_handle_clipboard_changed_message):
Include current clipboard count.
(be_selection_outdated_p): New function.
* src/haikuselect.c (haiku_handle_selection_clear): Ignore
outdated events.
(haiku_selection_disowned): New argument `count'.  Include it in
the timestamp field of the selection clear event.
* src/haikuselect.h: Update prototypes.
* src/systime.h: Define `Time' to an appropriate value on Haiku.

Merge from origin/emacs-28

3442de2edd Doc fix; don't mention obsolete variable
c4e251103b ; * lisp/textmodes/rst.el: Update URLs.

Fix redisplay after running selection hook on Haiku

* src/haikuselect.c (haiku_handle_selection_clear): Call
redisplay_preserve_echo_area.

Add new minor mode to deactivate the region once PRIMARY is lost

* doc/emacs/killing.texi (Primary Selection): Document new minor
mode `lost-selection-mode'.
* etc/NEWS: Announce new minor mode.
* lisp/select.el (lost-selection-function): New function.
(lost-selection-mode): New global minor mode.

; * message.el (message-auto-save-directory): Clarify docstring.

Speed up querying for window manager support

* src/xterm.c (handle_one_xevent): Clear net_supported_window if
it is destroyed.
(x_get_wm_check_window): New function.
(x_wm_supports_1): First try net_supported_window.  If it still
exists, don't ask for _NET_SUPPORTING_WM_CHECK.

Remove now unused parameter TRACK from do_switch_frame.

* src/lisp.h (extern do_swith_frame declaration)
* src/frame.c (do_switch_frame): Remove parameter TRACK and its comment.
* src/frame.c (Fselect_frame, Fhandle_switch_frame, delete_frame)
* src/keyboard.c (quit_throw_to_read_char)
* src/minibuf.c (read_minibuf_unwind (twice))
* src/window.c (Fset_window_configuration): Remove argument TRACK.

Doc fix; don't mention obsolete variable

* src/window.c (Fset_window_hscroll): Doc fix; don't mention obsolete
variable.

* lisp/isearch.el (isearch-search-fun-in-noncontiguous-region): New function.

(isearch-search-fun-in-text-property): Refactor body to
'search-within-boundaries', then call it (bug#14013).
(search-within-boundaries): New function refactored from
isearch-search-fun-in-text-property.

* test/lisp/isearch-tests.el: Add tests for new search functions.
(isearch--test-search-within-boundaries): New function.
(isearch--test-search-fun-in-text-property)
(isearch--test-search-fun-in-noncontiguous-region): New tests.

Display the number of invisible matches for isearch-lazy-count (bug#40808)

* lisp/isearch.el (lazy-count-invisible-format): New variable.
(isearch-mode): Set isearch-lazy-count-invisible to nil.
(isearch-lazy-count-format): Use lazy-count-invisible-format and
isearch-lazy-count-invisible.
(isearch-range-invisible): Handle the value 'can-be-opened' of
'search-invisible' and don't open overlays for it, just check
if these overlays can be opened.
(isearch-lazy-count-invisible): New variable.
(isearch-lazy-highlight-new-loop): Set isearch-lazy-count-invisible to nil.
(isearch-lazy-highlight-search): Let-bind search-invisible either to t
for non-nil isearch-lazy-count, or to 'can-be-opened'.
(isearch-lazy-highlight-match): Don't highlight matches intended
to be counted only, not highlighted.
(isearch-lazy-highlight-buffer-update): Separately count invisible
matches by isearch-lazy-count-invisible.

* lisp/info.el (Info-isearch-filter): Check if search-invisible is t.

Don't mention moved variable in dired-x manual

* doc/misc/dired-x.texi (Technical Details): Remove mention of
'dired-clean-up-buffers-too'; it has been moved to dired.el.

Delete redundant defgroup dired-keys

* lisp/dired-x.el (dired-keys): Delete defgroup.
(dired-bind-vm): Move to :group dired-x.

Move dired-do-relsymlink from dired-x.el to dired.el

* lisp/dired-x.el (dired-do-relsymlink, dired-make-relative-symlink)
(dired-do-relsymlink-regexp): Move from here...
* lisp/dired-aux.el (dired-do-relsymlink, dired-make-relative-symlink)
(dired-do-relsymlink-regexp): ...to here.  (Bug#21981)

* lisp/dired-x.el: Move keybinding and menu binding from here...
* lisp/dired.el (dired-mode-map, dired-mode-regexp-menu): ...to
here.

* lisp/dired-x.el (dired-keep-marker-relsymlink): Move from here...
* lisp/dired.el (dired-keep-marker-relsymlink): ...to here.  Improve
docstring.

* doc/misc/dired-x.texi (Miscellaneous Commands): Move
documentation of above commands from here...
* doc/emacs/dired.texi (Operating on Files)
(Transforming File Names): ...to here.

* lisp/progmodes/ruby-mode.el (ruby-mode): Set outline-regexp, outline-level.

Suggested by Yilkal Argaw <yilkalargawworkneh@gmail.com>.

Remove unused member of internal struct

* src/fns.c (struct textprop_rec, concat_to_string): Remove `from`.

* lisp/dired.el (dired-jump-map): Bind also "j" to dired-jump.

Ensure correct position is returned after child frame movement

* src/xterm.c (x_set_offset): Synchronize child frame movement
correctly.

Fix file-name-case-insensitive-p in ffap (bug#56443)

Don't crash if the file name argument to file-name-case-insensitive-p,
after expansion, doesn't have a parent directory.  This occurs
when calling ffap on something that looks like an email address.

* src/fileio.c (Ffile_name_case_insensitive_p): Return nil if no file
or parent directory could be found.
* test/src/fileio-tests.el (fileio-tests--identity-expand-handler)
(fileio--file-name-case-insensitive-p): New test.

Remove many items obsolete since 24.1

* lisp/allout.el (allout-abbreviate-flattened-numbering)
(allout-mode-deactivate-hook):
* lisp/ansi-color.el (ansi-color-unfontify-region):
* lisp/auth-source.el (auth-source-hide-passwords)
(auth-source-user-or-password)
(auth-source-forget-user-or-password):
* lisp/cedet/data-debug.el (data-debug-map):
* lisp/cedet/semantic/grammar.el (semantic-grammar-syntax-table)
(semantic-grammar-map):
* lisp/chistory.el (command-history-map):
* lisp/comint.el (comint-dynamic-complete)
(comint-dynamic-complete-as-filename)
(comint-dynamic-simple-complete):
* lisp/dired-x.el (read-filename-at-point)
(dired-x-submit-report):
* lisp/dos-fns.el (register-name-alist, make-register)
(register-value, set-register-value, intdos, mode25, mode4350):
* lisp/emacs-lisp/bytecomp.el (byte-compile-disable-print-circle):
* lisp/emacs-lisp/chart.el (chart-map):
* lisp/emacs-lisp/package.el (package-menu-view-commentary):
* lisp/emacs-lock.el (toggle-emacs-lock, emacs-lock-from-exiting):
* lisp/erc/erc.el (erc-complete-word):
* lisp/eshell/em-cmpl.el (eshell-cmpl-suffix-list):
* lisp/eshell/esh-util.el (eshell-for):
* lisp/files.el (inhibit-first-line-modes-regexps)
(inhibit-first-line-modes-suffixes):
* lisp/gnus/gnus-msg.el (gnus-outgoing-message-group)
(gnus-debug-files, gnus-debug-exclude-variables):
* lisp/gnus/gnus-registry.el (gnus-registry-user-format-function-M):
* lisp/gnus/gnus.el (gnus-local-domain, gnus-carpal):
* lisp/gnus/nnimap.el (nnimap-split-rule):
* lisp/iimage.el (turn-on-iimage-mode):
* lisp/image.el (image-extension-data, image-library-alist):
* lisp/mail/emacsbug.el (report-emacs-bug-pretest-address):
* lisp/mail/mail-utils.el (rmail-dont-reply-to):
* lisp/mail/mailalias.el (mail-complete-function)
(mail-completion-at-point-function):
* lisp/mail/rmail.el (rmail-dont-reply-to-names)
(rmail-default-dont-reply-to-names):
* lisp/mail/sendmail.el (mail-mailer-swallows-blank-line)
(mail-sent-via):
* lisp/menu-bar.el (menu-bar-kill-ring-save):
* lisp/minibuffer.el (completion-annotate-function)
(minibuffer-local-filename-must-match-map):
* lisp/msb.el (msb-after-load-hooks):
* lisp/obsolete/eieio-compat.el (eieio-defmethod)
(eieio-defgeneric):
* lisp/obsolete/info-edit.el (Info-edit-map):
* lisp/obsolete/starttls.el (starttls-any-program-available):
* lisp/progmodes/cfengine.el (cfengine-mode-abbrevs):
* lisp/progmodes/cwarn.el (turn-on-cwarn-mode):
* lisp/progmodes/make-mode.el (makefile-complete):
* lisp/progmodes/meta-mode.el (meta-complete-symbol)
(meta-mode-map):
* lisp/progmodes/pascal.el (pascal-toggle-completions)
(pascal-last-completions, pascal-show-completions):
* lisp/progmodes/prolog.el (prolog-char-quote-workaround):
* lisp/progmodes/which-func.el (which-func-mode): [FUNCTION]
* lisp/simple.el (count-lines-region, minibuffer-completing-symbol):
* lisp/speedbar.el (speedbar-syntax-table, speedbar-key-map):
* lisp/strokes.el (strokes-report-bug):
* lisp/subr.el (condition-case-no-debug):
* lisp/term/ns-win.el (ns-alternatives-map)
(ns-store-cut-buffer-internal):
* lisp/term/w32-win.el (w32-default-color-map):
* lisp/term/x-win.el (x-cut-buffer-or-selection-value):
* lisp/textmodes/bibtex.el (bibtex-complete)
(bibtex-entry-field-alist):
* lisp/textmodes/reftex-index.el (reftex-index-map)
(reftex-index-phrases-map):
* lisp/textmodes/reftex-sel.el (reftex-select-label-map)
(reftex-select-bib-map):
* lisp/textmodes/reftex-toc.el (reftex-toc-map):
* lisp/textmodes/rst.el (rst-block-face, rst-external-face)
(rst-definition-face, rst-directive-face, rst-comment-face)
(rst-emphasis1-face, rst-emphasis2-face, rst-literal-face)
(rst-reference-face):
* lisp/vc/vc-hooks.el (vc-toggle-read-only):
* lisp/view.el (view-return-to-alist)
(view-return-to-alist-update): Remove many functions and variables
obsolete since 24.1.

* lisp/textmodes/bibtex.el (bibtex-entry-alist): Don't use above
removed variable 'bibtex-entry-field-alist'.
* lisp/cedet/data-debug.el (data-debug-edebug-expr)
(data-debug-eval-expression):
* lisp/emacs-lisp/trace.el (trace--read-args):
* lisp/files-x.el (read-file-local-variable-value):
* lisp/simple.el (read--expression): Don't use above removed variable
'minibuffer-completing-symbol'.
* lisp/textmodes/rst.el (rst-font-lock-keywords): Don't use above
removed variables.
* src/w32fns.c (Fw32_default_color_map): Delete obsolete function.
(syms_of_w32fns): Delete defsubr for above defun.
* src/keyboard.c (syms_of_keyboard) <Vdeferred_action_list>
<Vdeferred_action_function>: Delete DEFVARs.
<Qdeferred_action_function>: Delete DEFSYM.
(syms_of_keyboard_for_pdumper): Adjust for above change.
(command_loop_1): Don't run deferred-action-function hook.
* lisp/subr.el (deferred-action-list, deferred-action-function):
Delete obsoletion statements.
* lisp/emacs-lisp/ert-x.el (ert-simulate-command): Don't run
'deferred-action-list' hook.
* doc/lispref/hooks.texi (Standard Hooks): Delete
'deferred-action-function'.

* lisp/emacs-lisp/lisp.el (field-complete):
* lisp/eshell/em-cmpl.el (eshell-cmpl-initialize):
* lisp/gnus/gnus-msg.el (gnus-inews-insert-gcc):
* lisp/gnus/nnmail.el (nnmail-fancy-expiry-target):
* lisp/mail/mail-utils.el (mail-dont-reply-to):
* lisp/mail/sendmail.el (sendmail-send-it):
* lisp/mail/smtpmail.el (smtpmail-send-it):
* lisp/minibuffer.el (minibuffer-completion-help):
* lisp/progmodes/python.el: Don't use above removed items.
* lisp/emacs-lisp/eieio-core.el:
* lisp/mail/mailalias.el (mail-complete-alist): Doc fixes; don't refer
to above removed items.
; * etc/NEWS: List removed items.

Put safe-local-variable property on auto-insert

* lisp/autoinsert.el (auto-insert): Put safe-local-variable
property to allow disabling auto-inserting without a warning.

Stop ffap-machine-at-point from pinging random hosts

Having this on by default is highly problematic from a security and
privacy standpoint, as it risks having outgoing traffic that could
potentially reveal sensitive data (passwords, names, etc.).

It also seems to be causing issues for users, see e.g.
https://github.com/emacs-helm/helm/issues/648

* lisp/ffap.el (ffap-machine-p-known): Change default to 'accept'.

Add :safe property to ffap-machine-p-* variables

* lisp/ffap.el (ffap--accept-or-reject-p): New predicate defun.
(ffap-machine-p-local, ffap-machine-p-known)
(ffap-machine-p-unknown): Add :safe property using above new
predicate.

Add tests for mail-extr.el

* test/lisp/mail/mail-extr-tests.el: New file.

; * lisp/textmodes/rst.el: Update URLs.

Avoid obsolete initial-input argument in net-utils.el

* lisp/net/net-utils.el (ping, nslookup-host, dns-lookup-host)
(run-dig, ftp, smbclient, smbclient-list-shares, finger)
(network-connection-to-service): Don't use obsolete initial-input
argument.  Use 'format-prompt'.  (Bug#56436)

Improve behavior of sticky tooltips on Haiku

* src/haiku_support.cc (class EmacsView, MouseMoved): Remove
`tooltip_position'.
(class EmacsMotionSuppressionView): New class.
(BView_set_and_show_sticky_tooltip): Rename to
`be_show_sticky_tooltip'.  Add motion suppression view.

* src/haiku_support.h: Update prototypes.
* src/haikufns.c (Fx_show_tip): Update for renamed function.

Fix flickering system tooltips on Haiku

* src/haiku_support.cc (class EmacsView, MouseMoved): Restore
sticky status and mouse relative position.
(BView_set_and_show_sticky_tooltip):
* src/haikufns.c (haiku_hide_tip): Fix coding style.

Reduce synchronization setting frame alpha

* src/xterm.c (x_set_frame_alpha): Don't synchronize while
setting alpha property, and don't ask for the current value of
the opacity property, which is much more expensive than changing
it.

Merge from origin/emacs-28

2ac0ddc4ac ; * lisp/net/net-utils.el: Minor doc fixes.

Fix returned action symbol upon "xterm" drop

* src/xterm.c (x_dnd_do_unsupported_drop): Set
x_dnd_action_symbol.
(x_dnd_begin_drag_and_drop): Don't clear it afterwards.

* lisp/emacs-lisp/ert.el (Commentary): Refer to the Info manual.

Prefer keymap inheritance in shr-image-map

* lisp/net/shr.el (shr-image-map): Replace copy-keymap with
inheritance.

Make imenu--create-keymap more resilient

* lisp/imenu.el (imenu--create-keymap): Ignore nil items in the
alist (bug#56430).

Fix buffer-tests

* test/src/buffer-tests.el (test-restore-buffer-modified-p): Don't
assume turning on auto-save-mode cannot auto-save immediately.

Faster append and vconcat

By separating the code paths for append and vconcat, each becomes
simpler and faster.

* src/fns.c (concat_strings): Rename to...
(concat_to_string): ...this.
(concat): Split into concat_to_list and concat_to_vector.
(concat_to_list, concat_to_vector): New, specialised and
streamlined from earlier combined code.
(concat2, concat3, Fappend, Fconcat, Fvconcat): Adjust calls.

Remove obscure, obsolete code from do_switch_frame

This is relevant for bug #56305, and might solve that bug.  The code being
removed went into Emacs between 1992 and 1994, and looks to have been a
workaround for switching frames, before the command 'other-frame' had been
written.  Nowadays, that code has harmful effects, causing frames' focus to be
redirected at random, sometimes back to the frame itself.

* src/frame.c (do_switch_frame): Remove 53 lines of code.

* lisp/net/dig.el (dig): Provide default.

Make net-utils-url at point funs obsolete in favor of ffap

* lisp/net/net-utils.el (net-utils-machine-at-point)
(net-utils-url-at-point): Redefine as obsolete function alias for
'ffap-machine-at-point' and 'ffap-url-at-point'.  Update callers.
* lisp/ffap.el (ffap-machine-at-point, ffap-url-at-point): Autoload.

Fix selection disowning upon frame deletion on Wayland

* src/pgtkselect.c (pgtk_clear_frame_selections): Manually
disown cleared selections.  (bug#56434)

* lisp/net/eww.el (eww-browse-url): Add 'browser-kind' property.

* lisp/woman.el (woman): Fix comment; don't mention gnudoit.

Make two XEmacs related variables obsolete

* lisp/net/browse-url.el (browse-url-gnudoit-program)
(browse-url-gnudoit-args): Make obsolete.  The corresponding command
'browse-url-w3-gnudoit' is already obsolete since 25.1.

Fix GTK build

* src/xterm.c (x_dnd_begin_drag_and_drop): Update GTK quitting
code for last change too.  Reported by Norbert Koch
<viteno@netic.de>.

Fix quitting out of selection converters during drag and drop

* src/xterm.c (x_dnd_process_quit): New function.
(x_dnd_begin_drag_and_drop): Use it instead.  Also quit if
quit-flag is true immediately after a selection converter is
run.

Mark comint modes in net-utils.el as non-interactive

* lisp/net/net-utils.el (net-utils-mode, nslookup-mode, ftp-mode)
(smbclient-mode, network-connection-mode): Mark as non-interactive.
(nslookup-mode-map, ftp-mode-map): Prefer defvar-keymap.

; * lisp/net/net-utils.el: Minor doc fixes.

Make 'run-dig' command obsolete in favor of 'dig'

* lisp/net/net-utils.el (run-dig): Redefine in terms of `dig' and make
obsolete.  (Bug#56432).
(dig-program): Delete duplicate defcustom; it is also in dig.el.
(dig-program-options): Move from here...
* lisp/net/dig.el (dig-program-options): ...to here.
(dig-invoke): Respect 'dig-program-options'.
(dig): Prompt for DNS server when given double prefix argument.

Fix undo of changes in cloned indirect buffers

* lisp/simple.el (primitive-undo): If the visited-modtime of the
indirect buffer's file is bogus, use the modtime of the file
visited by its base buffer.

* src/undo.c (record_first_change): Call
'buffer_visited_file_modtime' with the correct buffer, instead of
always calling 'Fvisited_file_modtime', which returns possibly
bogus values for indirect buffers.
* src/fileio.c (Fset_visited_file_modtime): Signal a meaningful
error for indirect buffers.
(buffer_visited_file_modtime): New function, with implementation
taken from 'Fvisited_file_modtime'.
(Fvisited_file_modtime): Call 'buffer_visited_file_modtime'.
* src/lisp.h: Add prototype for 'buffer_visited_file_modtime'.
(Bug#56397)

* lisp/net/dig.el (dig-exit): Mark for 'dig-mode'.

Make the Indian itrans methods more phonetic

The characters ऋ and ॠ are pronunced as ru in languages such as
Marathi, Gujarati, Telugu, etc. so add new translation rules that
reflects this sound.  (bug#56414)

* lisp/language/ind-util.el (indian-itrans-v5-table): Add new
translation rules to make the input method more phonetic.
(indian-tml-base-table, indian-tml-base-digits-table): Fix typo.

Merge branch 'master' of git.savannah.gnu.org:/srv/git/emacs

Don't accumulate trailing newlines on every save of .dir-locals.el

* lisp/files-x.el (modify-dir-local-variable): Insert a newline
only after creating a new file.
(dir-locals-to-string): Remove newline to not add more newlines
on every save.

; Improve documentation of 'set-transient-map' changes

* lisp/subr.el (set-transient-map-timeout, set-transient-map): Doc
fixes.

* etc/NEWS: Improve wording of the 'set-transient-map' entry.

* doc/lispref/keymaps.texi (Controlling Active Maps): Fix wording
and passive tense, and improve indexing.  (Bug#21634)

Fix `trace-function' default buffer

* lisp/emacs-lisp/trace.el (trace--read-args): Don't use
format-prompt; instead, use DEF arg to read-buffer.

; Merge from origin/emacs-28

The following commit was skipped:

f9d01e5047 ; * lisp/emacs-lisp/ert.el: Remove installation instructions.

gnus-advanced-body: Fix return value

* gnus-logic.el (gnus-advanced-body): Return whether the search
succeeded, not the value of one of the cleanup forms.