The 'font-lock-support-mode' is occasionally useful for debugging
purposes, so it remains as a defvar.
Ref: https://lists.gnu.org/r/emacs-devel/2020-08/msg00125.html
* lisp/obsolete/fast-lock.el:
* lisp/obsolete/lazy-lock.el: Delete libraries obsolete since
22.1. (Bug#56560)
* lisp/font-lock.el (font-lock-support-mode): Make into a defvar and
delete any mention of 'lazy-lock-mode' and 'fast-lock-mode'.
(font-lock-turn-on-thing-lock, font-lock-turn-off-thing-lock):
Drop support for obsolete modes lazy-lock and fast-lock.
(font-lock-after-fontify-buffer)
(font-lock-after-unfontify-buffer): Make into obsolete function
aliases for 'ignore'. Adjust callers.
(font-lock-keywords, font-lock-inhibit-thing-lock): Adjust
documentation to not mention lazy-lock and fast-lock.
* lisp/font-core.el (font-lock-defaults): Adjust documentation to
not mention 'font-lock-inhibit-thing-lock'.
* lisp/mail/rmail.el (rmail-variables): Don't inhibit obsolete
lazy-lock-mode and fast-lock-mode.
* lisp/emacs-lisp/warnings.el (warning-suppress-action)
(warning-suppress-log-action): Removed.
New icon.
(warnings-suppress): New helper function.
(display-warning): Use it (bug#46025).
* lisp/help.el (describe-bindings): Don't force buttons on
(bug#56691).
* lisp/outline.el (outline-minor-mode-use-buttons): Default
buttons on in special-mode buffers.
* lisp/outline.el (outline-minor-mode-buttons): Remove.
(outline-open, outline-close): New icons.
(outline-minor-mode-highlight-buffer): Use the new predicate to
switch on/off.
(outline--make-button): Remove.
(outline--make-button-overlay): Use icons.el instantiation.
(outline--valid-emoji-p): Remove.
(outline--valid-char-p): Remove.
(outline--insert-open-button, outline--insert-close-button): Make
point movement better in *Help* buffers.
* doc/emacs/custom.texi (Specific Customization): Mention it.
* doc/emacs/display.texi (Icons): New node.
* doc/lispref/display.texi (Icons): New node.
* lisp/button.el (buttonize):
(button--properties, buttonize-region): Allow not overriding faces.
* lisp/cus-edit.el (custom-save-all): Save icons.
(custom-icon): New widget.
(custom-icon-value-create, custom-toggle-hide-icon)
(custom--icons-widget-value, custom-icon-set): Helper functions
for the widget.
(customize-icon): Main command.
(custom-icon-state-set, custom-icon-state): Helper functions.
(custom-theme-set-icons): Function to be used by theme writers.
(custom-set-icons): Function to be used in .emacs.
(custom-save-icons): New function.
* lisp/custom.el (custom-push-theme): Add icons.
* lisp/emacs-lisp/icons.el: New file.
* test/lisp/emacs-lisp/icons-tests.el: Add some tests.
* src/print.c (PRINTPREPARE): Bind the current buffer so that we
can retrieve it later.
(print_vectorlike): Use it (bug#56773).
(syms_of_print): New internal `print--unreadable-callback-buffer'
variable.
* doc/lispref/tips.texi (Documentation Tips): Document how `...'
is really used now (bug#55780). ‘...’ is not really used in the
Emacs sources.
(cherry picked from commit 1ed9c1c7f9)
* src/haiku_support.cc (class EmacsView): New field
`grabbed_buttons'. Remove `previous_buttons'.
(BasicMouseDown, BasicMouseUp): Accept new parameter `message'.
Use data from that message instead.
(MouseDown, MouseUp): Pass the current message to BasicMouseUp
and BasicMouseDown.
* lisp/desktop.el: Run 'desktop--on-kill' in 'kill-emacs-hook'.
(desktop--on-kill): New function, refactored from 'desktop-kill'.
(desktop-kill): Call 'desktop--on-kill'. (Bug#56800)
Ref: https://flex.phys.tohoku.ac.jp/texi/faq/faq_146.html
Note also that the host "archive.cis.ohio-state.edu" is unknown.
* lisp/ffap.el (ffap-alist): Drop support for obsolete "Lisp Code
Directory".
(ffap-lcd): Make obsolete.
EFS is a long defunct XEmacs-specific fork of Ange FTP that is
superseded by TRAMP.
* lisp/ffap.el (ffap-ftp-default-user)
(ffap-replace-file-component, ffap-host-to-filename):
* lisp/gnus/mml.el (mml-parse-file-name):
* lisp/gnus/nnheader.el (nnheader-re-read-dir):
* lisp/net/browse-url.el (browse-url-filename-alist):
* lisp/speedbar.el (speedbar-check-vc): Drop support for XEmacs
package EFS.
* lisp/erc/erc-backend.el (erc-server-last-peers): Leave default as
nil instead of a quoted constant.
(erc-server-connect): Initialize `erc-server-last-peers' to a new
value local to a server buffer.
(erc-message): Operate on server's local `erc-server-last-peers' value
instead of the global default. Prefer replacing value instead of
mutating CDR to make for easier testing.
(erc-server-PRIVMSG): Create a new `erc-server-last-peers' for easier
testing. (Bug#56449)
* lisp/erc/erc-dcc.el (erc-dcc-chat-setup): Ensure initialization runs
in the intended buffer regardless of the value of `erc-join-buffer'.
(erc-dcc--send-final-turbo-ack, erc-dcc-get-filter): Rename internal
variable formerly known as `erc-dcc--X-send-final-turbo-ack'.
* test/lisp/erc/resources/erc-d/erc-d.el (erc-d-server-fqdn,
erc-d--initialize-client, erc-d--log, erc-d--send, erc-d--filter,
erc-d-run): Add new variable and use it. Also optionally accept
keyword arguments in `erc-d-run'.
* test/lisp/erc/resources/erc-d/erc-d-tests.el
(erc-d-run-direct-foreign-protocol): Add test demoing newline-only
line-wise protocol.
* test/lisp/erc/resources/erc-d/resources/foreign.eld: New file.
