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2020-07-28  Nicolas Petton  <nicolas@petton.fr>

	* etc/NEWS: Remove temporary markup.

2020-07-26  Philipp Stephani  <phst@google.com>

	Add another test for global module references

	* test/src/emacs-module-tests.el (mod-test-globref-reordered): New
	unit test.

	* test/data/emacs-module/mod-test.c (Fmod_test_globref_reordered): New
	test module function.
	(emacs_module_init): Export it.

2020-07-26  Philipp Stephani  <phst@google.com>

	Backport: add another test case for module assertions.

	This backports commit 9f01ce6327 from master.  Since the bug isn’t
	present on emacs-27, just backport the new test case.

	* test/data/emacs-module/mod-test.c (Fmod_test_globref_invalid_free):
	New test module function.
	(emacs_module_init): Export it.

	* test/src/emacs-module-tests.el
	(module--test-assertions--globref-invalid-free): New unit test.

2020-07-26  Philipp Stephani  <phst@google.com>

	Backport: Add module test for edge case.

	This backports commit 6355a3ec62 from master.  Since the bug isn’t
	present in emacs-27, just backport the test case.

	* test/data/emacs-module/mod-test.c
	(Fmod_test_invalid_store_copy): New test module function.
	(emacs_module_init): Export it.

	* test/src/emacs-module-tests.el
	(module--test-assertions--load-non-live-object-with-global-copy):
	New unit test.

2020-07-25  Eli Zaretskii  <eliz@gnu.org>

	Fix last change

	* src/composite.c (composition_reseat_it): Fix of the commentary,
	and a minor change of the last fix.

2020-07-25  Pip Cet  <pipcet@gmail.com>

	Fix Arabic shaping when column-number-mode is in effect

	* src/indent.c (scan_for_column, compute_motion): Pass -1,
	instead of NEUTRAL_DIR, to 'composition_reseat_it'.
	* src/composite.c (composition_reseat_it): Interpret negative
	value of BIDI_LEVEL to mean the caller doesn't know what is the
	bidi direction of the text.  (Bug#41005)

2020-07-24  Eli Zaretskii  <eliz@gnu.org>

	Fix description of kmacro-* commands in the user manual

	* doc/emacs/kmacro.texi (Basic Keyboard Macro): Separate old-style
	macro definition commands from the new style in the summary
	table.  (Bug#42492)

2020-07-24  Lars Ingebrigtsen  <larsi@gnus.org>

	Fix viewing of encrypted S/MIME messages

	* lisp/gnus/mm-decode.el (mm-possibly-verify-or-decrypt): Don't
	add a content-type header if there already is one (bug#41659).

2020-07-21  Ken Manheimer  <ken.manheimer@gmail.com>

	Revert "Rectify allout-widgets region undecoration so item at start is not missed."

	This reverts commit 33d85cb768b40794bffcd9ab22fbdec1211a74e5.

	Backporting it to emacs-27 was not appropriate.

2020-07-21  Ken Manheimer  <ken.manheimer@gmail.com>

	Revert "Resolve missing button-region keymap bindings."

	This reverts commit dd7c191291c8eb1afeac0f1512745491c5c7a317.

	Backporting it to emacs-27 was not appropriate.

2020-07-21  Ken Manheimer  <ken.manheimer@gmail.com>

	Revert "Provide missing let definition to prevent background void-variable error."

	This reverts commit 3c410b6b4753e02269bb36914e7534eb124150dd.

	Backporting it to emacs-27 was not appropriate.

2020-07-21  Ken Manheimer  <ken.manheimer@gmail.com>

	Revert "Don't let item decoration be disrupted by too-shallow items."

	This reverts commit 8684216542889fa57daa32072104afc69785907f.

	Backporting it to emacs-27 was not appropriate.

2020-07-21  Ken Manheimer  <ken.manheimer@gmail.com>

	Revert "Fix allout-widgets-mode handling of edits to item cue, fixing (bug#11312)"

	This reverts commit 8e13d332481551e4c8c1c66dd0c69dd09256dffc.

	Backporting it to emacs-27 was not appropriate.

2020-07-21  Robert Pluim  <rpluim@gmail.com>

	Run custom-magic-reset in the customize buffer

	If the user has navigated away from the customize buffer, then
	clicking on a widget in the customize buffer applies changes in the
	selected buffer rather than in the customize buffer.  Pass the
	customize buffer to 'custom-magic-reset' to avoid this.

	* lisp/cus-edit.el (custom-magic-reset): Add optional buffer argument,
	apply changes in that buffer.
	(custom-notify): Pass the buffer containing the widget to
	'custom-magic-reset'.  (Bug#40788)

2020-07-20  Ken Manheimer  <ken.manheimer@gmail.com>

	Backport: Rectify allout-widgets region undecoration so item at start is not missed.

	* lisp/allout-widgets.el (allout-widgets-undecorate-region):
	Reorganize the loop so an item at the start is not skipped.

	(cherry picked from commit 33d85cb768b40794bffcd9ab22fbdec1211a74e5)

2020-07-20  Ken Manheimer  <ken.manheimer@gmail.com>

	Backport: Resolve missing button-region keymap bindings.

	* lisp/allout-widgets.el (allout-item-icon-keymap,
	allout-item-body-keymap, allout-cue-span-keymap, allout-widgets-mode):
	Inherit from both (current-local-map) and (current-global-map). This
	provides for missing global bindings when inheriting from
	just (current-local-map), eg Esc-<.

	(cherry picked from commit dd7c191291c8eb1afeac0f1512745491c5c7a317)

2020-07-20  Ken Manheimer  <ken.manheimer@gmail.com>

	Backport: Provide missing let definition to prevent background void-variable error.

	* lisp/allout-widgets.el (allout-widgets-exposure-change-processor)
	Let-declare handled-conceal, for reference through `(symbol-value)'
	within the let body. (Because the error happens in an
	after-change-functions hook, so it is caught and reported as a message
	by allout-widgets-hook-error-handler.)

	(cherry picked from commit 3c410b6b4753e02269bb36914e7534eb124150dd)

2020-07-20  Ken Manheimer  <ken.manheimer@gmail.com>

	Backport: Don't let item decoration be disrupted by too-shallow items.

	* lisp/allout-widgets.el (allout-decorate-item-and-context): Check for
	parent-position having value before using it.

	Also, shift local emacs vars topic deeper so it doesn't constitute
	an instance of that particular aberrant case.

	(cherry picked from commit 8684216542889fa57daa32072104afc69785907f)

2020-07-20  Ken Manheimer  <ken.manheimer@gmail.com>

	Backport: Fix allout-widgets-mode handling of edits to item cue, fixing (bug#11312)

	* lisp/allout-widgets.el (allout-decorate-item-cue): Properly decorate
	item cue span.
	(allout-setup-text-properties): use allout-graphics-modification-handler
	as allout-cue-span-category modification hook.

	(cherry picked from commit 8e13d332481551e4c8c1c66dd0c69dd09256dffc)

2020-07-20  Robert Pluim  <rpluim@gmail.com>

	Document prefix arg effects for 'epa-mail-{sign,encrypt}'

	* doc/misc/epa.texi (Mail-mode integration): Describe effect of
	prefix arg to 'epa-mail-encrypt' and 'epa-mail-sign'.

	* lisp/epa-mail.el (epa-mail-sign): Describe effect of prefix arg.

2020-07-20  Robert Pluim  <rpluim@gmail.com>

	* etc/NEWS: Correct description of :client-certificate change

2020-07-18  Eli Zaretskii  <eliz@gnu.org>

	Revert "Fix filename completion in shell mode buffers"

	This reverts commit e4d17d8cb479ffeeb7dfb7320a1432722ac8df75.
	Per bug#42383 discussions, the fix for bug#34330 probably
	just works around the real issue, which is in pcomplete.el.

2020-07-18  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'bookmark-bmenu-mode'

	* lisp/bookmark.el (bookmark-bmenu-mode): Add
	`bookmark-bmenu-search' to the doc string.  (Bug#42325)

2020-07-18  Eli Zaretskii  <eliz@gnu.org>

	Update systems using GnuTLS certificate files

	* lisp/net/gnutls.el (gnutls-trustfiles): Update the names of the
	systems in the comments.  Reported by Richard Stallman <rms@gnu.org>
	in
	https://lists.gnu.org/archive/html/emacs-devel/2020-07/msg00455.html.

2020-07-17  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'kill-emacs'

	* doc/lispref/os.texi (Killing Emacs):
	* src/emacs.c (Fkill_emacs): Document what non-integer, non-string
	argument to 'kill-emacs' means.  (Bug#42400)

2020-07-17  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'display-raw-bytes-as-hex'

	* doc/emacs/display.texi (Text Display): Mention
	'display-raw-bytes-as-hex'.  (Bug#42384)

2020-07-17  Robert Pluim  <rpluim@gmail.com>

	Correct descriptions of init file

	These still referred to XDG as being preferred.

	* doc/emacs/custom.texi (Init File): Correct description of init
	file preference order (Bug#42388).

	* doc/emacs/custom.texi (Find Init): Correct description of
	default init-file.

2020-07-16  Eli Zaretskii  <eliz@gnu.org>

	Fix interrupt-process on MS-Windows

	* src/w32proc.c (sys_kill): Test the status of the left Ctrl key
	for the purpose of restoring it after simulating Ctrl-C.  This
	avoids leaving the left Ctrl key status in depressed state when
	the user actually pressed the right Ctrl key.  (Bug#42350)

2020-07-11  Andrea Corallo  <akrl@sdf.org>

	Revert "* doc/misc/flymake.texi (An annotated example backend): Typo fix."

	This reverts commit b1ad0380d2372b8df35ff603b8918d22c27ad964.

2020-07-11  Mattias Engdegård  <mattiase@acm.org>

	Correct 'concat' manual entry (bug#42296)

	* doc/lispref/strings.texi (Creating Strings): 'concat' does not
	necessarily return a newly allocated string.  This has been the case
	at least since 1997 (Emacs 20.3).

2020-07-11  Andrea Corallo  <akrl@sdf.org>

	* doc/misc/flymake.texi (An annotated example backend): Typo fix.

2020-07-11  Eli Zaretskii  <eliz@gnu.org>

	Add commentary in gtkutil.c

	* src/gtkutil.c: Add a comment regarding the incompatibilities
	vis-a-vis GTK.  Suggested by Richard Stallman <rms@gnu.org>.

2020-07-10  Basil L. Contovounesios  <contovob@tcd.ie>

	Consistently stylize eldoc as ElDoc in prose

	* doc/emacs/custom.texi (Specifying File Variables):
	* doc/emacs/modes.texi (Major Modes):
	* doc/emacs/programs.texi (Lisp Doc):
	* etc/NEWS.22:
	* etc/NEWS.23:
	* lisp/progmodes/python.el:
	(python-eldoc-function):
	* test/lisp/progmodes/python-tests.el: Consistently capitalize eldoc
	as ElDoc rather than Eldoc.

2020-07-09  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of "C-u C-x ="

	* doc/emacs/mule.texi (International Chars): Mention the
	composition information displayed by "C-u C-x =".  (Bug#42256)

2020-07-09  Paul Eggert  <eggert@cs.ucla.edu>

	Mention floating rounding issues

	* doc/lispref/numbers.texi (Float Basics): Mention floating-point
	rounding issues uncovered by the discussion in Bug#42417.

2020-07-09  Mattias Engdegård  <mattiase@acm.org>

	Repair global-auto-revert-ignore-modes (bug#42271)

	Reported by Gustavo Tavares Cabral.

	* lisp/autorevert.el (auto-revert--global-add-current-buffer): Fix typo.

2020-07-08  Eli Zaretskii  <eliz@gnu.org>

	One more improvement of left/right-fringe display spec docs

	* doc/lispref/display.texi (Fringe Bitmaps): Yet another
	clarification of how to use FACE in left/right-fringe display
	spec.

2020-07-07  Eli Zaretskii  <eliz@gnu.org>

	Another clarification of left/right-fringe display spec

	* doc/lispref/display.texi (Fringe Bitmaps): More accurate
	description of what FACE means in the left/right-fringe display
	spec.

2020-07-07  Eli Zaretskii  <eliz@gnu.org>

	Avoid infloop in 'format-mode-line'

	* src/xdisp.c (decode_mode_spec): Don't use W->start if it is
	outside of the buffer's accessible region.  (Bug#42220)

2020-07-05  Eli Zaretskii  <eliz@gnu.org>

	Clarify the documentation of 'left/right-fringe' display spec

	* doc/lispref/display.texi (Other Display Specs, Fringe Bitmaps):
	Clarify how the optional FACE parameter of the left-fringe and
	right-fringe display spec is used.  Reported by Gregory Heytings
	<ghe@sdf.org>.

2020-07-04  Eli Zaretskii  <eliz@gnu.org>

	Minor improvement in ELisp manual

	* doc/lispref/frames.texi (Position Parameters): Clarify the
	description of the 'above' frame parameter.  (Bug#42154)

2020-07-02  Michael Albinus  <michael.albinus@gmx.de>

	* doc/misc/tramp.texi (Customizing Methods): Fix typo.

2020-06-29  Philipp Stephani  <phst@google.com>

	Fix undefined behavior in json.c (Bug#42113)

	* src/json.c (lisp_to_json_toplevel_1, Fjson_parse_string): Check
	whether input strings are actually strings.

	* test/src/json-tests.el (json-parse-string/wrong-type)
	(json-serialize/wrong-hash-key-type): New regression tests.

2020-06-28  Richard Kim  <emacs18@gmail.com>

	Fix ACTION argument of 'display-buffer' call in gud.el

	* lisp/progmodes/gud.el (gud-common-init): The ACTION argument of
	'display-buffer' should be a list of list of functions.  (Bug#41888)

2020-06-27  Eli Zaretskii  <eliz@gnu.org>

	* src/keyboard.c (Fclear_this_command_keys): Doc fix.

2020-06-27  Eli Zaretskii  <eliz@gnu.org>

	Improve do string of 'man'

	* lisp/man.el (man): Mention the need to use C-q for quoting the
	SPC character in the man-page input.  (Bug#41859)

2020-06-26  Eli Zaretskii  <eliz@gnu.org>

	Fix posn-at-point at beginning of a display string

	* src/xdisp.c (pos_visible_p): Account for the line-number width
	when the display string at CHARPOS ends in a newline.  (Bug#42039)

2020-06-26  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of Info node movement commands

	* lisp/info.el (Info-next, Info-prev, Info-forward-node)
	(Info-backward-node): More detailed descriptions of what each
	commands does with respect to child and parent nodes.  (Bug#42050)

2020-06-22  Phillip Lord  <phillip.lord@russet.org.uk>

	Add Jansson dependency to Windows Build

	* admin/nt/dist-build/build-dep-zips.py: Add dependency

2020-06-22  Richard Copley  <rcopley@gmail.com>  (tiny change)

	Unbreak 'reverse-region'

	* lisp/sort.el (reverse-region): Unbreak the function.  It was
	broken by a fix for bug#39376.

2020-06-22  Basil L. Contovounesios  <contovob@tcd.ie>

	Fix typos and markup in fill column indicator docs

	* doc/emacs/display.texi (Displaying Boundaries): Fix typos and
	Texinfo markup.

2020-06-20  Stephen Berman  <stephen.berman@gmx.net>

	Avoid crashes in 'defconst'

	* src/eval.c (Fdefconst): Verify that SYMBOL is a known symbol.
	(Bug#41817)

2020-06-20  Richard Stallman  <rms@gnu.org>

	Fix text about Lisp archives in the Emacs FQ

	* doc/misc/efaq.texi (Packages that do not come with Emacs): Warn
	about using Lisp archives other than GNU ELPA.

2020-06-20  Eli Zaretskii  <eliz@gnu.org>

	Don't use 'cl' functions in ELisp manual's examples

	* doc/lispref/control.texi (pcase Macro): Use 'cl-evenp' instead
	of 'evenp'.  (Bug#41947)

2020-06-17  Basil L. Contovounesios  <contovob@tcd.ie>

	Fix some Texinfo markup

	* doc/misc/gnus-faq.texi (FAQ 3-11):
	* doc/emacs/frames.texi (Tab Bars): Consistently use @var with
	lower-case metasyntactic variables and @minus instead of a dash.
	(Text-Only Mouse):
	* doc/emacs/files.texi (Auto Revert):
	* doc/emacs/misc.texi (emacsclient Options)
	(Embedded WebKit Widgets):
	* doc/lispref/control.texi (pcase Macro):
	* doc/lispref/debugging.texi (Backtraces):
	* doc/lispref/files.texi (Truenames):
	* doc/lispref/frames.texi (Management Parameters):
	* doc/lispref/os.texi (Time Calculations):
	* doc/lispref/text.texi (Parsing JSON):
	* doc/misc/efaq-w32.texi (Other versions of Emacs, Debugging)
	(Swap Caps NT, Printing, Bash, Developing with Emacs):
	* doc/misc/efaq.texi (New in Emacs 25):
	* doc/misc/emacs-gnutls.texi (Help For Users):
	* doc/misc/message.texi (Using S/MIME, Passphrase caching):
	* test/manual/etags/tex-src/gzip.texi (Overview): Use @. when a
	sentence in the middle of a paragraph ends with an upper-case letter
	as per "(texinfo) Ending a Sentence".

2020-06-17  Basil L. Contovounesios  <contovob@tcd.ie>

	Fix recentf typo in Emacs manual

	* doc/emacs/files.texi (File Conveniences): Fix misspelling of
	recentf-list.

2020-06-17  Juri Linkov  <juri@linkov.net>

	Rename default function to next-error-buffer-unnavigated-current (bug#40919)

	* lisp/simple.el (next-error-find-buffer-function): Rename default function
	from next-error-no-navigation-try-current
	to next-error-buffer-unnavigated-current.

2020-06-17  Juri Linkov  <juri@linkov.net>

	* lisp/image-mode.el (image-toggle-display-image): Fix fit of rotated images.

	When fitting rotated image to width and height, swap width and height
	when changing orientation between portrait and landscape (bug#41886).

2020-06-16  Michael Albinus  <michael.albinus@gmx.de>

	* doc/misc/tramp.texi (Predefined connection information): Add "tmpdir".

2020-06-13  João Távora  <joaotavora@gmail.com>

	Delete, don't kill, dir dir fragments in icomplete-fido-backward-updir

	Reported by: Andrew Schwartzmeyer <andrew@schwartzmeyer.com>

	* lisp/icomplete.el (icomplete-fido-backward-updir): Don't save
	dir fragments to kill ring.

2020-06-13  Basil L. Contovounesios  <contovob@tcd.ie>

	Revert markup change in with-coding-priority docs

	This partially reverts commit fc759eb9b3
	"Fix with-coding-priority markup in Elisp manual"
	of 2019-10-13T15:36:02Z!contovob@tcd.ie.

	For discussion, see the following thread:
	https://lists.gnu.org/archive/html/emacs-devel/2019-10/msg00550.html
	https://lists.gnu.org/archive/html/emacs-devel/2020-06/msg00473.html

	* doc/lispref/nonascii.texi (Specifying Coding Systems): Use more
	specific cross-reference to progn even if info.el displays it
	suboptimally.

2020-06-10  Juri Linkov  <juri@linkov.net>

	* lisp/emulation/cua-rect.el (cua--rectangle-region-insert): New function.

	Add cua--insert-rectangle around region-insert-function (bug#41440).

2020-06-09  Juri Linkov  <juri@linkov.net>

	* lisp/simple.el (shell-command-on-region): Fix docstring.

	* lisp/simple.el (shell-command-on-region): Mention REGION-NONCONTIGUOUS-P
	in docstring (bug#41440)

	* etc/NEWS: Better example for 'windmove-display-default-keybindings'.

2020-06-08  Basil L. Contovounesios  <contovob@tcd.ie>

	Clean up D-Bus documentation (bug#41744)

	* doc/lispref/errors.texi (Standard Errors): The error symbol
	dbus-error is defined even when Emacs is built without D-Bus.

	* doc/misc/dbus.texi (Bus Names, Introspection)
	(Nodes and Interfaces, Methods and Signal)
	(Properties and Annotations, Arguments and Signatures)
	(Synchronous Methods, Receiving Method Calls, Signals)
	(Alternative Buses, Errors and Events): Clarify wording.  Fix
	indentation of and simplify examples where possible.  Improve
	Texinfo markup and cross-referencing where possible.
	(Type Conversion): Ditto.  Remove mentions of Emacs' fixnum range
	now that we have bignums.

	* lisp/net/dbus.el (dbus-return-values-table)
	(dbus-call-method-asynchronously, dbus-send-signal)
	(dbus-register-signal, dbus-register-method)
	(dbus-string-to-byte-array, dbus-byte-array-to-string)
	(dbus-escape-as-identifier, dbus-check-event, dbus-event-bus-name)
	(dbus-event-message-type, dbus-event-serial-number)
	(dbus-event-service-name, dbus-event-path-name)
	(dbus-event-interface-name, dbus-event-member-name)
	(dbus-list-activatable-names, dbus-list-queued-owners, dbus-ping)
	(dbus-introspect-get-interface-names, dbus-introspect-get-interface)
	(dbus-introspect-get-method, dbus-introspect-get-signal)
	(dbus-introspect-get-property, dbus-introspect-get-annotation-names)
	(dbus-introspect-get-annotation, dbus-introspect-get-argument-names)
	(dbus-introspect-get-argument, dbus-introspect-get-signature)
	(dbus-set-property, dbus-register-property)
	(dbus-get-all-managed-objects, dbus-init-bus): Clarify docstring and
	improve formatting where possible.
	(dbus-call-method): Ditto.  Remove mentions of Emacs' fixnum range
	now that we have bignums.

2020-06-08  Juri Linkov  <juri@linkov.net>

	* lisp/image-mode.el (image-transform-original): New command (bug#41222).

	(image-mode-map): Bind it to "so" and add to menu.

2020-06-08  Juri Linkov  <juri@linkov.net>

	Move tab-bar and tab-line faces to faces.el (part of bug#41200)

	These are basic faces, so they need to be defined in
	faces.el, otherwise (get 'tab-line 'face) returns 0.

	* lisp/faces.el (tab-bar, tab-line): Move faces here
	from tab-bar.el and tab-line.el.

	* lisp/tab-bar.el (tab-bar): Move face to faces.el.
	(tab-bar-faces): Add '((tab-bar custom-face))
	to the second arg MEMBERS of 'defgroup'.

	* lisp/tab-line.el (tab-line): Move face to faces.el.
	(tab-line-faces): Add '((tab-line custom-face))
	to the second arg MEMBERS of 'defgroup'.

2020-06-07  Basil L. Contovounesios  <contovob@tcd.ie>

	Fix typo in "(elisp) Type Keywords"

	* doc/lispref/customize.texi (Type Keywords): Fix typo of 'choice'
	composite type.  (Bug#41749)

2020-06-07  Tassilo Horn  <tsdh@gnu.org>

	Gnus nnir-summary-line-format has no effect

	* lisp/gnus/nnir.el (nnir-mode): Update summary format specs if
	nnir-summary-line-format is set and different from
	gnus-summary-line-format.
	(nnir-open-server): Run nnir-mode in gnus-summary-generate-hook
	instead of gnus-summary-prepared-hook.

2020-06-06  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'window-text-pixel-size'

	* doc/lispref/display.texi (Size of Displayed Text): Clarify the
	description of 'window-text-pixel-size'.

2020-06-06  Eli Zaretskii  <eliz@gnu.org>

	* src/xdisp.c (Fwindow_text_pixel_size): Doc fix.  (Bug#41737)

2020-06-06  Basil L. Contovounesios  <contovob@tcd.ie>

	Minor improvements to EDE and EIEIO manuals

	For discussion, see the following threads:
	https://lists.gnu.org/archive/html/emacs-devel/2020-05/msg00630.html
	https://lists.gnu.org/archive/html/emacs-devel/2020-06/msg00099.html

	* doc/misc/ede.texi (ede-generic-project): Clean up example.
	* doc/misc/eieio.texi (Accessing Slots): Document slot-value as a
	generalized variable and set-slot-value as obsolete.
	(Predicates): Fix typo.
	(Introspection): Document eieio-class-slots in place of the obsolete
	object-slots.

2020-06-06  João Távora  <joaotavora@gmail.com>

	Have Fido mode also imitate Ido mode in ignore-case options

	Suggested by Sean Whitton <spwhitton@spwhitton.name>.

	* lisp/icomplete.el (icomplete--fido-mode-setup): Set ignore-case
	options.

2020-06-05  Basil L. Contovounesios  <contovob@tcd.ie>

	Update package-menu-quick-help

	* lisp/emacs-lisp/package.el (package--quick-help-keys): Filtering
	is now bound to the prefix '/', not the key 'f' (bug#41721).
	Advertise only the standard 'g' binding now that both it and 'r' are
	bound to revert-buffer (bug#35504).
	(package--prettify-quick-help-key): Avoid modifying string literals.
	(package-menu-filter): Reintroduce as obsolete alias of
	package-menu-filter-by-keyword for backward
	compatibility (bug#36981).

2020-06-05  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'sort-subr'

	* doc/lispref/text.texi (Sorting): Clarify the meaning and use of
	PREDICATE argument to 'sort-subr'.  (Bug#41706)

2020-06-05  Andrii Kolomoiets  <andreyk.mad@gmail.com>

	Update Ukrainian transliteration

	* lisp/language/cyril-util.el (standard-display-cyrillic-translit):
	Add missing letter "ґ"; tweak letter "г".  (Bug#41683)

2020-06-05  Eli Zaretskii  <eliz@gnu.org>

	Fix Arabic shaping when eww/shr fill the text to be rendered

	* src/hbfont.c (hbfont_shape): Don't use DIRECTION if the current
	buffer has bidi reordering disabled.  (Bug#41005)

2020-06-03  Basil L. Contovounesios  <contovob@tcd.ie>

	Silence some byte-compiler warnings in tests

	* test/lisp/emacs-lisp/cl-generic-tests.el:
	* test/lisp/progmodes/elisp-mode-tests.el: Declare functions
	referred to within macroexpansions.
	(xref-elisp-overloadable-no-default)
	(xref-elisp-overloadable-co-located-default)
	(xref-elisp-overloadable-separate-default): Prefix unused arguments
	with underscore.

	* test/lisp/international/ccl-tests.el:
	* test/lisp/wdired-tests.el:
	* test/lisp/emacs-lisp/package-tests.el: Declare functions used.
	(package-test-update-archives, package-test-signed): Use
	revert-buffer in place of its obsolete alias package-menu-refresh.

	* test/lisp/eshell/eshell-tests.el:
	* test/lisp/mail/footnote-tests.el:
	* test/src/buffer-tests.el: Require dependencies used.

	* test/lisp/image/exif-tests.el: Remove unneeded (require 'seq).
	(test-exit-direct-ascii-value): Actually perform the test.
	* test/lisp/progmodes/sql-tests.el (sql-test-add-existing-product):
	Fix typo.

	* test/lisp/simple-tests.el (with-shell-command-dont-erase-buffer):
	* test/src/data-tests.el (test-bool-vector-bv-from-hex-string)
	(test-bool-vector-apply-mock-op): Remove unused local variables.

2020-06-03  Basil L. Contovounesios  <contovob@tcd.ie>

	* test/lisp/battery-tests.el: New file.

2020-06-02  Basil L. Contovounesios  <contovob@tcd.ie>

	Improve format-spec documentation (bug#41571)

	* doc/lispref/text.texi (Interpolated Strings): Move from here...
	* doc/lispref/strings.texi (Custom Format Strings): ...to here,
	renaming the node and clarifying the documentation.
	(Formatting Strings): End node with sentence referring to the next
	one.
	* lisp/format-spec.el (format-spec): Clarify docstring.

2020-06-01  Eli Zaretskii  <eliz@gnu.org>

	Don't call 'mbrtowc' on WINDOWSNT

	* src/emacs.c (using_utf8): Don't call 'mbrtowc' on WINDOWSNT
	systems, as it's not available on Windows 9X.

2020-06-01  João Távora  <joaotavora@gmail.com>

	* doc/emacs/buffers.texi (Icomplete): Mention icomplete-minibuffer-setup-hook.

2020-06-01  Paul Eggert  <eggert@cs.ucla.edu>

	Be more aggressive in marking objects during GC

	Simplified version of a patch from Pip Cet (Bug#41321#299).
	* src/alloc.c (maybe_lisp_pointer): Remove.  All uses removed.
	(mark_memory): Also look at the pointer offset by ‘lispsym’,
	for symbols.

2020-05-31  Alan Mackenzie  <acm@muc.de>

	Fix bug #41618 "(byte-compile 'foo) errors when foo is a macro."

	* lisp/emacs-lisp/bytecomp.el (byte-compile): Disentangle the eval of the
	final form from the pushing of 'macro onto it, doing the former first.

2020-05-31  Eli Zaretskii  <eliz@gnu.org>

	Avoid crashes due to bidi cache being reset during redisplay

	If automatic character composition triggers GC, and
	'garbage-collection-messages' are turned on, we could have the
	bidi cache reset while processing RTL text, which would then
	consistently crash.
	* src/xdisp.c (display_echo_area_1): Protect the bidi cache
	against changes inside 'try_window'.

2020-05-31  Juri Linkov  <juri@linkov.net>

	* lisp/tab-bar.el (switch-to-buffer-other-tab): Normalize buffer.

	* lisp/tab-bar.el (switch-to-buffer-other-tab): Use
	'window-normalize-buffer-to-switch-to' on 'buffer-or-name',
	like does 'pop-to-buffer' used by 'switch-to-buffer-other-frame',
	instead of raising the error "Invalid buffer" on a non-existent buffer name.

2020-05-30  Eli Zaretskii  <eliz@gnu.org>

	Fix mingw.org's MinGW GCC 9 warning about 'execve'

	* nt/inc/ms-w32.h (execve) [__GNUC__ > 9]: Provide a different
	prototype for mingw.org's MinGW as well, to match the GCC builtin.

2020-05-28  Glenn Morris  <rgm@gnu.org>

	Tiny texinfo markup fixes

	* doc/lispref/edebug.texi (Edebug Views):
	* doc/lispref/loading.texi (Library Search):
	* doc/lispref/os.texi (User Identification): Markup fixes.

2020-05-27  Dmitry Gutov  <dgutov@yandex.ru>

	Make next-error behavior a bit more flexible

	* lisp/simple.el (next-error-no-navigation-try-current):
	Extract from the case #2 in next-error-find-buffer (bug#40919).
	(next-error-find-buffer-function): Use it as the default.

2020-05-27  Noam Postavsky  <npostavs@gmail.com>

	* etc/NEWS.25: Belatedly announce upcase-dwim and downcase-dwim.

2020-05-25  Eli Zaretskii  <eliz@gnu.org>

	Fix access to single-byte characters in buffer text

	* src/xdisp.c (get_visually_first_element)
	(Fbidi_find_overridden_directionality):
	* src/cmds.c (Fend_of_line): Use FETCH_BYTE instead of FETCH_CHAR,
	and byte position instead of character position, to access
	individual bytes of buffer text.  This avoids producing invalid
	characters and accessing wrong buffer positions.  (Bug#41520)

2020-05-25  Noam Postavsky  <npostavs@gmail.com>

	Revert "Fix eshell-mode-map initialization"

	It makes eshell-return-exits-minibuffer permanently affect the
	eshell-mode-map (Bug#41370).

	Do not merge to master, we will fix it properly there.

2020-05-25  Matthias Meulien  <orontee@gmail.com>

	Fix tab-bar-tab-name-ellipsis initialization

	* lisp/tab-bar.el (tab-bar-tab-name-truncated): Evaluate displayable
	character when generating tab name.

2020-05-24  Basil L. Contovounesios  <contovob@tcd.ie>

	Fix Elisp manual entry for format-spec

	* doc/lispref/text.texi (Interpolated Strings): Fix typos.  Don't
	document modifier for default space padding as it's redundant and
	inconsistent with the docstring and implementation of format-spec.

2020-05-24  Eli Zaretskii  <eliz@gnu.org>

	Fix rare assertion violations in 'etags'

	* lib-src/etags.c (pfnote): Instead of raising an assertion when
	we get an empty tag name, return immediately.  (Bug#41465)

	* test/manual/etags/ETAGS.good_1:
	* test/manual/etags/ETAGS.good_2:
	* test/manual/etags/ETAGS.good_3:
	* test/manual/etags/ETAGS.good_4:
	* test/manual/etags/ETAGS.good_5:
	* test/manual/etags/ETAGS.good_6: Adapt to latest changes in
	etags.

2020-05-23  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp/subr.el (save-match-data): Clarify use in docstring

2020-05-23  Eli Zaretskii  <eliz@gnu.org>

	Improve the documentation of setting up fontsets

	* doc/lispref/display.texi (Fontsets): Improve the accuracy of a
	cross-reference to "Character Properties".

	* doc/emacs/mule.texi (Fontsets, Modifying Fontsets): Improve the
	documentation of fontsets and how to modify them.

2020-05-23  Eli Zaretskii  <eliz@gnu.org>

	* doc/emacs/killing.texi (Rectangles): Improve indexing.

2020-05-23  Eli Zaretskii  <eliz@gnu.org>

	Fix accessing files on networked drives on MS-Windows

	* src/w32.c (acl_get_file): Set errno to ENOTSUP if
	get_file_security returns ERROR_NOT_SUPPORTED.  (Bug#41463)

2020-05-22  Alan Mackenzie  <acm@muc.de>

	CC Mode: Fix bug #39972, by fixing c-display-defun-name for nested defuns

	* lisp/progmodes/cc-mode.el (c-common-init): Build
	add-log-current-defun-function out of c-defun-name-and-limits instead of the
	former c-defun-name.

2020-05-21  Paul Eggert  <eggert@cs.ucla.edu>

	Redo RCS Id for pdumper

	* lisp/version.el: Don’t put an RCS Id style string into the
	executable via purecopy, as this does not work with the pdumper.
	* src/emacs.c (RCS_Id): New constant, for 'ident'.

	(cherry picked from commit 3d1bcfba5e21b29be8669aa2a8f27b344c9e02fd)

2020-05-21  Stefan Kangas  <stefankangas@gmail.com>

	Second attempt at improving indexing in control.texi

	* doc/lispref/control.texi (Processing of Errors): Improve indexing by
	adding the word form "handle" in addition to "handling".  With thanks
	to Eli Zaretskii.

2020-05-19  Stefan Kangas  <stefankangas@gmail.com>

	* doc/lispref/control.texi (Processing of Errors): Improve indexing.

2020-05-17  Paul Eggert  <eggert@cs.ucla.edu>

	Minor fixups for mutability doc

	* doc/lispref/objects.texi (Mutability): Minor fixups in
	response to a comment by Dmitry Gutov (Bug#40671#477).

2020-05-17  Paul Eggert  <eggert@cs.ucla.edu>

	Don’t use “constant” for values you shouldn’t change

	Inspired by patch proposed by Dmitry Gutov (Bug#40671#393)
	and by further comments by him and by Michael Heerdegen
	in the same bug report.
	* doc/lispintro/emacs-lisp-intro.texi (setcar):
	Don’t push mutability here.
	* doc/lispref/eval.texi (Self-Evaluating Forms, Quoting)
	(Backquote):
	* doc/lispref/lists.texi (Modifying Lists):
	* doc/lispref/objects.texi (Lisp Data Types, Mutability):
	* doc/lispref/sequences.texi (Array Functions, Vectors):
	* doc/lispref/strings.texi (String Basics, Modifying Strings):
	Don’t use the word “constant” to describe all values that
	a program should not change.
	* doc/lispref/objects.texi (Mutability):
	Rename from “Constants and Mutability”.  All uses changed.
	In a footnote, contrast the Emacs behavior with that of Common
	Lisp, Python, etc. for clarity, and say the goal is to be nicer.

2020-05-16  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of manually installing Lisp packages

	* doc/emacs/building.texi (Lisp Libraries): Describe how to
	manually load packages in the init file.  Mention the 'site-lisp'
	subdirectory of the default 'load-path'.

	* doc/emacs/package.texi (Packages): Describe manual installation
	of ELisp packages.  Suggested by Jean-Christophe Helary
	<jean.christophe.helary@traduction-libre.org>.

2020-05-16  Eli Zaretskii  <eliz@gnu.org>

	Reflect the emacs-devel ELPA/MELPA dispute in FAQ

	* doc/misc/efaq.texi (Packages that do not come with Emacs): Warn
	that some MELPA packages may require non-free software.

2020-05-15  Tassilo Horn  <tsdh@gnu.org>

	Consider face inheritance when checking region face background.

	Some themes (like dracula) make the region face inherit from some
	other face.  If the background color of the region was inherited,
	`indicate-copied-region' did the switch-point-and-mark-twice dance
	which is not visible in case the region is highlighted.  It just
	looked like Emacs would hang for a second after M-w.

	* lisp/simple.el (indicate-copied-region): Consider face inheritance
	when checking region face background.

2020-05-15  Leo Vivier  <leo.vivier+dev@gmail.com>

	Fix dired default file operation (bug#41261)

	* lisp/dired-aux.el (dired-dwim-target-directories): Restore
	pre-emacs-27 behavior of 'dired-dwim-target'.

2020-05-14  Philipp Stephani  <phst@google.com>

	Fix documentation related to 'command-switch-alist'.

	While there, add a unit test to verify the behavior.

	* doc/lispref/os.texi (Command-Line Arguments): Fix documentation: the
	option string in 'command-switch-alist' does include leading hyphens.
	Also mention that 'command-switch-alist' parsing ignores equals signs
	in options.

	* test/lisp/startup-tests.el
	(startup-tests/command-switch-alist): New unit test.

2020-05-13  Simon Lang  <simon.lang@outlook.com>  (tiny change)

	Improve ediff readability in misterioso theme (Bug#41221)

	* etc/themes/misterioso-theme.el: Add ediff faces.

2020-05-13  Clément Pit-Claudel  <clement.pitclaudel@live.com>

	Fix a crash in handle_display_spec

	* src/xdisp.c (handle_display_spec): Check that the cdr of the
	disable-eval spec is a cons before taking its car.  (Bug#41232)

2020-05-13  Martin Rudalics  <rudalics@gmx.at>

	In x_hide_tip reset tip_last_frame for GTK+ tooltips only (Bug#41200)

	* src/xfns.c (x_hide_tip): Reset tip_last_frame only when
	using GTK+ system tooltips (Bug#41200).

2020-05-12  João Távora  <joaotavora@gmail.com>

	Fix docstring of flymake-make-diagnostic (bug#40351)

	* lisp/progmodes/flymake.el (flymake-make-diagnostic): Fix docstring

2020-05-10  Paul Eggert  <eggert@cs.ucla.edu>

	Go back to “Bahá’í”

	* doc/emacs/calendar.texi (Holidays): Revert previous change, as
	bahai.org spells it “Bahá’í” (with U+2019 RIGHT SINGLE QUOTATION
	MARK) and that’s good enough for us.

2020-05-10  Eli Zaretskii  <eliz@gnu.org>

	* lisp/dired.el (dired-toggle-marks): Doc fix.  (Bug#41097)

2020-05-09  Philipp Stephani  <phst@google.com>

	Small fix for type of 'display-fill-column-indicator-character'

	* lisp/cus-start.el (standard): Don't mark t as safe file-local value
	for 'display-fill-column-indicator-character', as that value isn't
	allowed.

2020-05-09  Eli Zaretskii  <eliz@gnu.org>

	Fix customization of 'display-fill-column-indicator-character'

	* lisp/cus-start.el (display-fill-column-indicator-character): Fix
	the customization form.  (Bug#41145)

2020-05-09  Philipp Stephani  <phst@google.com>

	Refer to fill column indicator Info node in some places.

	* src/xdisp.c (syms_of_xdisp): Add reference to manual in
	documentation strings for variables related to fill column indicators.

	* lisp/display-fill-column-indicator.el (display-fill-column-indicator)
	(display-fill-column-indicator-mode): Add reference to manual.

2020-05-09  Martin Rudalics  <rudalics@gmx.at>

	Fix GTK's Tool Bar menu radio buttons

	* lisp/menu-bar.el (menu-bar-showhide-tool-bar-menu): Fix typo
	that makes the radio buttons pretend that the tool bar is always
	shown on the left side of the frame.

2020-05-09  Eli Zaretskii  <eliz@gnu.org>

	Minor clarifications in NEWS

	* etc/NEWS: Tell how to revert to previous behaviors regarding
	displaying messages when the minibuffer is active.  (Bug#41087)

2020-05-08  Philipp Stephani  <phst@google.com>

	Improve documentation of 'with-suppressed-warnings'.

	* lisp/emacs-lisp/byte-run.el (with-suppressed-warnings): Refer to
	'byte-compile-warnings' instead of 'byte-compile-warning-types', as
	only the former variable documents the available warning types.

2020-05-08  Eli Zaretskii  <eliz@gnu.org>

	Fix a typo in a comment

	* lisp/display-fill-column-indicator.el: Fix a typo in a comment.
	Suggested by david s <ds@fastmail.com>.

2020-05-08  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of Hi Lock mode

	* lisp/hi-lock.el (hi-lock-mode, hi-lock-face-buffer)
	(hi-lock-face-phrase-buffer, hi-lock-face-symbol-at-point):
	Clarify when 'hi-lock-mode' will use Font Lock and when it will
	use overlays.  (Bug#41124)

2020-05-08  Eli Zaretskii  <eliz@gnu.org>

	Fix typos in the Emacs user manual

	* doc/emacs/calendar.texi (Holidays): Fix usage of non-ASCII
	accents.
	* doc/emacs/custom.texi (Init Rebinding): Fix a cross-reference.
	* doc/emacs/dired.texi (Operating on Files): Make the
	cross-reference to "VC Delete/Rename" be to a different manual in
	the printed version.  (Bug#41100)

2020-05-08  Björn Holby  <bjorn.holby@gmail.com>  (tiny change)

	Fix references to Speedbar in VHDL mode

	* lisp/progmodes/vhdl-mode.el (vhdl-speedbar-initialize): Update
	references to Speedbar variables.  (Bug#41084)

2020-05-08  Eli Zaretskii  <eliz@gnu.org>

	Fix handling of FROM = t and TO = t by 'window-text-pixel-size'

	* src/xdisp.c (Fwindow_text_pixel_size): Use byte position for
	accessing buffer text, not character positions.  (Bug#41125)

2020-05-06  Eli Zaretskii  <eliz@gnu.org>

	* doc/emacs/modes.texi (Major Modes): Fix quoting.  (Bug#41110)

2020-05-06  Noam Postavsky  <npostavs@gmail.com>

	Fix docstring quoting

	* lisp/gnus/message.el (message-sendmail-extra-arguments): Fix
	escaping of quotes in docstring.

2020-05-06  Noam Postavsky  <npostavs@gmail.com>

	Revert "cl-loop: Calculate the array length just once"

	Don't merge to master.  This is a safe-for-release fix for Bug#40727.

2020-05-06  Noam Postavsky  <npostavs@gmail.com>

	Revert "cl-loop: Add missing guard condition"

	Don't merge to master.  This is a safe-for-release fix for Bug#40727.

2020-05-06  Noam Postavsky  <npostavs@gmail.com>

	Revert "Refix conditional step clauses in cl-loop"

	Don't merge to master.  This is a safe-for-release fix for Bug#40727.

2020-05-05  Eli Zaretskii  <eliz@gnu.org>

	Improve "Help Summary" section in user manual

	* doc/emacs/help.texi (Help Summary): Add cross-references to
	sections with details of each Help command.

2020-05-05  Stefan Kangas  <stefankangas@gmail.com>

	Clarify message-sendmail-extra-arguments docstring

	* lisp/gnus/message.el (message-sendmail-extra-arguments): Clarify
	docstring.

2020-05-05  Philipp Stephani  <phst@google.com>

	* src/editfns.c (Fformat): Small documentation fix.

2020-05-04  Alan Mackenzie  <acm@muc.de>

	Remove calls to non-existent functions from edebug.el.

	Do not merge to master.

	*lisp/emacs-lisp/edebug.el (edebug--display-1)
	(edebug-toggle-disable-breakpoint): Remove calls to
	edebug--overlay-breakpoints and edebug--overlay-breakpoints-removed which had
	been overlooked in a recent changed to edebug.

2020-05-04  Dmitry Gutov  <dgutov@yandex.ru>

	Honor search-upper-case

	* lisp/fileloop.el (fileloop--case-fold):
	Extract from existing code.  Honor search-upper-case (bug#40940).
	(fileloop-initialize-replace, fileloop-initialize-search): Use it.
	Update the docstring.

2020-05-04  Basil L. Contovounesios  <contovob@tcd.ie>

	Fix eww-follow-link on URLs with #target

	* lisp/net/eww.el (eww-display-html): Ensure shr-target-id is set as
	callers depend on this (bug#28441, bug#40532).

2020-05-04  Juri Linkov  <juri@linkov.net>

	Revert part of recent commit 85544f8ef5 (bug#40808)

	* lisp/isearch.el (isearch-lazy-highlight-search): Remove recent fix of
	lazy-highlighting of hidden matches.  In emacs-27 leave only the fix for
	lazy-counting of hidden matches when isearch-lazy-count is non-nil.

2020-05-03  Stefan Kangas  <stefankangas@gmail.com>

	Improve doc strings of makunbound and fmakunbound

	* src/data.c (Fmakunbound, Ffmakunbound): Improve doc
	strings.  (Bug#41026)

2020-05-03  Alan Mackenzie  <acm@muc.de>

	Revert "Mark breakpoints in edebug with highlights".  This fixes bug #40992

	Do not merge to master.

	This reverts commit e8b3a15cb6ff187ce08afcb43bd9a0b7907268ca.

2020-05-02  Paul Eggert  <eggert@cs.ucla.edu>

	Make memq etc. examples more like they were

	Problem reported by Štěpán Němec in:
	https://lists.gnu.org/r/emacs-devel/2020-05/msg00130.html
	* doc/lispref/lists.texi (Sets And Lists, Association Lists):
	Revert examples to be more like the way they were, using
	self-evaluating expressions.  Be more consistent about listing
	unspecified results.

2020-05-02  Eli Zaretskii  <eliz@gnu.org>

	Document effect of 'search-upper-case' on replacement commands

	* doc/emacs/search.texi (Replacement and Lax Matches): Document
	the role of 'search-upper-case' in replacement commands.
	(Lax Search): Document the value 'not-yanks' of
	'search-upper-case' where the variable itself is documented.

	* lisp/replace.el (query-replace-regexp, query-replace): Mention
	'search-upper-case' and its effect in doc strings.  (Bug#40940)

2020-05-01  Eli Zaretskii  <eliz@gnu.org>

	* lisp/desktop.el (desktop-save): Doc fix.  (Bug#41007)

2020-04-30  Stefan Kangas  <stefankangas@gmail.com>

	Recommend to avoid unnecessary abbreviations in doc

	* doc/lispref/tips.texi (Documentation Tips): Recommend to avoid
	unnecessary abbreviations.  (Bug#40011)

2020-04-30  Eli Zaretskii  <eliz@gnu.org>

	Revert "Fix calculator division truncation (bug#40892)"

	This reverts commit 82140c510c4d27e639b4bca1e9bf158f0f66c375.
	(Bug#40892)

2020-04-30  Mattias Engdegård  <mattiase@acm.org>

	Fix calculator division truncation (bug#40892)

	* lisp/calculator.el (calculator-string-to-number): Convert decimal
	numbers input to float, fixing a regression introduced in f248292ede.
	Reported by Aitor Soroa.

2020-04-29  Dmitry Gutov  <dgutov@yandex.ru>

	Expand file name for remote dirs as well

	* lisp/progmodes/project.el (project--files-in-directory):
	Expand file name for remote dirs as well (bug#40940).

2020-04-29  Eli Zaretskii  <eliz@gnu.org>

	Fix project.el commands in "transient" projects

	* lisp/progmodes/project.el (project--files-in-directory): Run
	local DIR directory names through 'expand-file-name', so that "~/"
	is expanded, in case the shell doesn't or the shell's notion of
	the home directory is different from that of Emacs.  (Bug#40940)

2020-04-29  Eli Zaretskii  <eliz@gnu.org>

	Make sure alist-related functions say so in their doc

	* src/fns.c (Fassq, assq_no_quit, Fassoc, assoc_no_quit, Frassq)
	(Frassoc): Rename argument LIST to ALIST.  Doc strings updated.

2020-04-29  Eli Zaretskii  <eliz@gnu.org>

	* lisp/env.el (substitute-env-vars): Doc fix.  (Bug#40948)

2020-04-29  Juri Linkov  <juri@linkov.net>

	* lisp/isearch.el: Fix lazy-highlighting and lazy-counting of hidden matches

	* lisp/isearch.el (isearch-lazy-highlight-search): Let-bind
	search-invisible to t when search-invisible is 'open' or when both
	isearch-lazy-count and search-invisible are non-nil.  (Bug#40808)

2020-04-28  Eli Zaretskii  <eliz@gnu.org>

	Fix error in ERC when 'erc-server-coding-system' is customized

	* lisp/erc/erc-backend.el (erc-split-line): Handle the case where
	'erc-coding-system-for-target' returns a coding-system's symbol.
	(Bug#40914)

2020-04-28  Eli Zaretskii  <eliz@gnu.org>

	Avoid crashes on TTY frames with over-long compositions

	* src/term.c (encode_terminal_code): Each character from an
	automatic composition is a multibyte character, so its multibyte
	representation can take up to MAX_MULTIBYTE_LENGTH bytes.
	Account for that when allocating storage for characters to be
	encoded.  (Bug#40913)

2020-04-27  Stefan Kangas  <stefankangas@gmail.com>

	Fix typo in custom.texi

	* doc/emacs/custom.texi (Variables): Fix typo.  Pointed out by
	ej32u@protonmail.com.  (Bug#40890)

2020-04-27  Michael Albinus  <michael.albinus@gmx.de>

	* test/lisp/simple-tests.el (with-shell-command-dont-erase-buffer):

	Use `shell-quote-argument' instead of quoting 'like this'.

2020-04-27  Juri Linkov  <juri@linkov.net>

	* lisp/image-mode.el (image-mode-map): Update menu items.

	* lisp/image-mode.el (image-mode-map): Move "Fit Image to Window (Best Fit)"
	higher.  Add "Zoom In" (image-increase-size), "Zoom Out" (image-decrease-size)
	and "Rotate Clockwise" (image-rotate).  Use name "Set Rotation..."
	for image-transform-set-rotation.  Swap "Next Image" and "Previous Image".
	Swap "Next Frame" and "Previous Frame".

2020-04-27  Juri Linkov  <juri@linkov.net>

	Fix bugs in tab-bar and tab-line and mention remaining features in manual.

	* doc/emacs/frames.texi (Tab Bars): Mention tab-bar-new-tab-to,
	tab-bar-close-last-tab-choice, tab-bar-close-tab-select, tab-undo,
	tab-select, tab-bar-history-mode.

	* doc/emacs/windows.texi (Tab Line): Mention tab-line-tabs-function.

	* lisp/tab-bar.el (tab-bar-select-tab-modifiers): Mention
	tab-bar-tab-hints in docstring.
	(tab-bar-tab-hints): Mention tab-bar-select-tab-modifiers
	in docstring.
	(tab-bar-select-tab): Mention tab-bar-select-tab-modifiers
	in docstring.
	(tab-bar-switch-to-tab): Expand the docstring.
	(tab-bar-new-tab-to): Fix bug in handling 'left' value.
	(tab-bar-close-tab): Fix bug in handling 'left' value.
	(tab-bar-undo-close-tab): Use funcall tab-bar-tabs-function
	instead of direct call to tab-bar-tabs.
	(tab-bar-history-back, tab-bar-history-forward): Add docstrings.
	(tab-bar-history-mode): Expand docstring.

	* lisp/tab-line.el (tab-line-format): Fix bug for handling window
	switching that should set face 'tab-line-tab-current'.

2020-04-26  Michael Albinus  <michael.albinus@gmx.de>

	Make shell-command tests fit for tcsh.

	* test/lisp/simple-tests.el (with-shell-command-dont-erase-buffer):
	Fix debug spec.  Format command to run also under tcsh.
	(simple-tests-shell-command-39067)
	(simple-tests-shell-command-dont-erase-buffer): Quote newline in string.

2020-04-25  Paul Eggert  <eggert@cs.ucla.edu>

	Remove doc duplication

	* doc/lispref/objects.texi (Constants and Mutability): Remove
	duplication.  From a suggestion by Andreas Schwab (Bug#40671#150).

2020-04-25  Michael Albinus  <michael.albinus@gmx.de>

	* etc/NEWS: Fix inconsistencies.

2020-04-25  Noam Postavsky  <npostavs@gmail.com>

	Clarify semantics of trace-function CONTEXT argument

	* lisp/emacs-lisp/trace.el (trace-function-foreground): Explain that
	CONTEXT should be a function, when called from Lisp.

2020-04-25  Noam Postavsky  <npostavs@gmail.com>

	Don't let a code literal get modified in mml parsing (Bug#39884)

	* lisp/gnus/mml.el (mml-parse-1): Make a fresh cons for the tag type,
	because 'mml-generate-mime' destructively modifies it.

2020-04-25  Eli Zaretskii  <eliz@gnu.org>

	* lisp/simple.el (kill-ring-save): Doc fix.  (Bug#40797)

2020-04-25  Clément Pit-Claudel  <cpitclaudel@gmail.com>

	Minor doc clarification regarding fringe bitmaps

	* doc/lispref/display.texi (Customizing Bitmaps): Add a note
	regarding the order of bits being the opposite of that in
	XBM images.  (Bug#40784)

2020-04-25  Eli Zaretskii  <eliz@gnu.org>

	Fix documentation of fringe bitmaps

	* doc/lispref/display.texi (Fringe Bitmaps): The 'empty-line'
	fringe indicator _is_ used.  (Bug#40799)

2020-04-25  Paul Eggert  <eggert@cs.ucla.edu>

	Tweak mutability doc a bit more

	Inspired by a comment from Michael Heerdegen (Bug#40671#114).
	* doc/lispref/objects.texi (Constants and Mutability): Tweak further.

2020-04-24  Mattias Engdegård  <mattiase@acm.org>

	Calc: fix autoload errors (bug#40800)

	Reported by Hugo Daschbach.

	* lisp/calc/calc-ext.el (calc-init-extensions):
	Remove calc-kbd-report key binding and autoload; it was removed in 2005.
	calc-keypad-x-{left,right,middle}-click were renamed to
	calc-keypad-{left,right,middle}-click in 2001; fix the autoloads.
	calc-twos-complement-mode is a variable, not a function; remove the
	autoload.
	* lisp/calc/calc-prog.el: Remove commented-out calc-kbd-report.

2020-04-24  Stefan Kangas  <stefankangas@gmail.com>

	Improve indexing of ELisp manual

	* doc/lispref/tips.texi (Tips): Add index entry 'best practices'.

2020-04-24  Juri Linkov  <juri@linkov.net>

	* lisp/image-mode.el (image-transform-resize): Remove FIXME comment.

	The user customizable variable 'image-auto-resize' is documented now
	in the manual.

2020-04-23  Tassilo Horn  <tsdh@gnu.org>

	Improve the default value of 'doc-view-ghostscript-program'.

	* lisp/doc-view.el (doc-view-ghostscript-program): Use plain command
	name instead of qualified name returned by executable-find (as
	suggested by Stefan Monnier).  (Bug#36357)

2020-04-23  Juri Linkov  <juri@linkov.net>

	Change doc-view-mode-map prefix key 's' to 'c'.

	* doc/emacs/misc.texi (DocView Slicing): Change prefix key 's' to 'c'.

	* lisp/doc-view.el (doc-view-mode-map): Change prefix key 's' to 'c'.

	* lisp/image-mode.el (image-mode-map): Add image-transform-set-scale to menu.

	* doc/emacs/files.texi (Image Mode): Describe commands
	image-transform-fit-both, image-transform-set-scale, image-transform-reset.

	* etc/NEWS: Rearrange image sections.

	https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg01315.html

2020-04-22  Paul Eggert  <eggert@cs.ucla.edu>

	Improve wording about constants

	Thanks to Štěpán Němec and Drew Adams for reviews of recent changes.
	* doc/lispref/eval.texi (Quoting): Give an example.
	* doc/lispref/lists.texi (Association Lists): Simplify example code.
	* doc/lispref/objects.texi (Lisp Data Types)
	(Constants and Mutability): Clarify wording.

2020-04-22  Tassilo Horn  <tsdh@gnu.org>

	Improve the default value of 'doc-view-ghostscript-program'.

	* lisp/doc-view.el (doc-view-ghostscript-program): On Windows, try
	gswin64c, gswin32c, rungs, and mgs.  (Bug#36357)

2020-04-21  Eli Zaretskii  <eliz@gnu.org>

	Minor improvements in documentation of the last change

	* etc/NEWS:
	* doc/emacs/files.texi (Image Mode): Minor copyedits of last change.

2020-04-21  Juri Linkov  <juri@linkov.net>

	Add image-auto-resize defcustoms to image-mode.el

	* lisp/image-mode.el (image-auto-resize)
	(image-auto-resize-on-window-resize): New defcustoms.
	(image-mode-map): Bind "sb" to image-transform-fit-both.
	(image-mode): Set image-transform-resize to image-auto-resize initially.
	(image-mode--setup-mode): Add hook on image-auto-resize-on-window-resize.
	(image-toggle-display-image): Check if image-transform-resize is t.
	(image-transform-properties): Check image-transform-resize for nil and t.
	(image-transform-fit-both): New command.
	(image-transform-reset): Reset image-transform-resize to image-auto-resize.

	* doc/emacs/files.texi (Image Mode): Mention image-auto-resize and
	image-auto-resize-on-window-resize.

	https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg01160.html

2020-04-21  Juri Linkov  <juri@linkov.net>

	Improve the documentation of tab-bar and tab-line

	* doc/emacs/frames.texi (Tab Bars): Add xref to "Tab Line".
	Document more commands.

	* doc/emacs/windows.texi (Windows):
	* doc/emacs/emacs.texi (Top): Add "Tab Line" menu.

	* doc/emacs/windows.texi (Window Convenience):
	Move tab-line documentation to new node "Tab Line".
	(Tab Line): New node.

	* doc/emacs/glossary.texi (Glossary):
	* doc/emacs/modes.texi (Minor Modes):
	* doc/emacs/display.texi (Standard Faces): Add xref to "Tab Line".

2020-04-20  Paul Eggert  <eggert@cs.ucla.edu>

	Tweak wording re constant variables

	* doc/lispref/objects.texi (Constants and Mutability): Tweak.
	Problem reported by Michael Heerdegen (Bug#40693#44).

2020-04-20  Paul Eggert  <eggert@cs.ucla.edu>

	Tweak setcar-related wording

	* doc/lispref/eval.texi (Self-Evaluating Forms):
	Change “primitives” to “operations”.
	Problem reported by Štěpán Němec in:
	https://lists.gnu.org/r/emacs-devel/2020-04/msg01146.html

2020-04-20  Juri Linkov  <juri@linkov.net>

	* lisp/image-mode.el: Add prefix key 's' and reduce dependency on ImageMagick.

	* lisp/image-mode.el (image-mode-map): Regroup existing keybindings and
	add new ones with the prefix key 's'.
	Remove condition ":visible (eq image-type 'imagemagick)" from menu.
	(image-toggle-display-image): Don't rotate again after user rotated manually.
	(image-transform-check-size): Remove check for imagemagick.
	(image-transform-properties, image-transform-set-scale)
	(image-transform-fit-to-height, image-transform-fit-to-width)
	(image-transform-set-rotation, image-transform-reset):
	Remove mentions of ImageMagick from docstrings since these commands
	now work without ImageMagick.

2020-04-20  Juri Linkov  <juri@linkov.net>

	* doc/emacs/windows.texi (Window Convenience): Decribe more windmove features.

	* doc/emacs/windows.texi (Window Convenience): Add descriptions of
	windmove-display-default-keybindings,
	windmove-delete-default-keybindings,
	windmove-swap-states-in-direction.

	* etc/NEWS: Regroup to move some parts closer to related sections.

2020-04-20  Paul Eggert  <eggert@cs.ucla.edu>

	Fix mutability glitches reported by Drew Adams

	See Bug#40693#32.
	* doc/lispref/eval.texi (Self-Evaluating Forms, Backquote):
	Say that these yield constant conses, vectors and strings,
	not constant symbols.
	* doc/lispref/objects.texi (Constants and Mutability): Say that an
	attempt to modify a constant variable signals an error, instead of
	saying that it has undefined behavior.

2020-04-19  Paul Eggert  <eggert@cs.ucla.edu>

	Improve mutability doc

	See Eli Zaretskii’s suggestions (Bug#40671#33).
	* doc/lispref/lists.texi (Setcar, Setcdr, Rearrangement):
	* doc/lispref/sequences.texi (Sequence Functions)
	(Array Functions):
	Add commentary to examples.
	* doc/lispref/lists.texi (Sets And Lists):
	Revert change to delq example.

2020-04-19  Paul Eggert  <eggert@cs.ucla.edu>

	Improve mutability documentation

	This change was inspired by comments from Štěpán Němec in:
	https://lists.gnu.org/r/emacs-devel/2020-04/msg01063.html
	* doc/lispref/objects.texi (Lisp Data Types): Mention mutability.
	(Constants and mutability): New section.
	* doc/lispintro/emacs-lisp-intro.texi (Lists diagrammed)
	(Indent Tabs Mode): Improve wording.
	* doc/lispref/eval.texi (Self-Evaluating Forms):
	Say that they return constants.
	* doc/lispref/lists.texi (Sets And Lists):
	Fix memql mistake/confusion that I recently introduced.

2020-04-19  Paul Eggert  <eggert@cs.ucla.edu>

	Document that quoting yields constants

	* doc/lispref/eval.texi (Quoting, Backquote):
	Mention that quoted expressions yield a constant (Bug#40693).

2020-04-19  Stefan Monnier  <monnier@iro.umontreal.ca>

	* doc/lispref/keymaps.texi (Extended Menu Items, Easy Menu) <:key-sequence>:

	Clarify the documentation further

2020-04-19  Mattias Engdegård  <mattiase@acm.org>

	Remove #' and function quoting from lambda forms in manual

	* doc/lispref/abbrevs.texi (Abbrev Expansion):
	* doc/lispref/backups.texi (Reverting):
	* doc/lispref/functions.texi (Mapping Functions):
	* doc/lispref/help.texi (Accessing Documentation):
	* doc/lispref/sequences.texi (Char-Tables):
	* doc/lispref/syntax.texi (Categories):
	* doc/lispref/text.texi (Sorting):
	Remove function quoting from lambda in examples where it still occurs,
	since examples should follow our best style and be consistent.

2020-04-19  Stefan Monnier  <monnier@iro.umontreal.ca>

	* src/regex-emacs.c (re_match_2_internal): Rework comment in last change

	Explain why we don't need to worry about Lisp modifying the buffer.

	* src/syntax.c (parse_sexp_propertize): Fix name in error message.

2020-04-19  Juri Linkov  <juri@linkov.net>

	Add new node "Image Mode" to Emacs Manual.

	* doc/emacs/dired.texi (Image-Dired): Add xref to "Image Mode".

	* doc/emacs/emacs.texi (Top): Add new node "Image Mode" to menu.

	* doc/emacs/files.texi (Files): Add new node "Image Mode" to menu.
	(File Conveniences): Split part of node to new node "Image Mode".

	* doc/emacs/frames.texi (Mouse Commands): Add xref to "Image Mode".

	* doc/emacs/misc.texi (Embedded WebKit Widgets): Rename xref from
	"File Conveniences" to "Image Mode".

2020-04-18  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/lispref/display.texi (Customizing Bitmaps): Fix typo.

2020-04-18  Paul Eggert  <eggert@cs.ucla.edu>

	Document constant vs mutable objects better

	This patch builds on a suggested patch by Mattias Engdegård
	and on further comments by Eli Zaretskii.
	Original bug report by Kevin Vigouroux (Bug#40671).
	* doc/lispintro/emacs-lisp-intro.texi (set & setq, Review)
	(setcar, Lists diagrammed, Mail Aliases, Indent Tabs Mode):
	setq is a special form, not a function or command.
	* doc/lispintro/emacs-lisp-intro.texi (setcar):
	* doc/lispref/lists.texi (Modifying Lists, Rearrangement):
	* doc/lispref/sequences.texi (Sequence Functions)
	(Array Functions, Vectors):
	* doc/lispref/strings.texi (String Basics, Modifying Strings):
	Mention mutable vs constant objects.
	* doc/lispintro/emacs-lisp-intro.texi (setcar, setcdr)
	(kill-new function, cons & search-fwd Review):
	* doc/lispref/edebug.texi (Printing in Edebug):
	* doc/lispref/keymaps.texi (Changing Key Bindings):
	* doc/lispref/lists.texi (Setcar, Setcdr, Rearrangement)
	(Sets And Lists, Association Lists, Plist Access):
	* doc/lispref/sequences.texi (Sequence Functions)
	(Array Functions):
	* doc/lispref/strings.texi (Text Comparison):
	Fix examples so that they do not try to change constants.

2020-04-18  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'sort-lines'

	* lisp/sort.el (sort-lines): Clarify the interactive invocation.
	(Bug#40697)

2020-04-18  Štěpán Němec  <stepnem@gmail.com>

	Mention 'spam-stat-process-directory-age' in the documentation

	I was at a loss as to why my attempt to set up spam-stat seemed to
	have no effect, only to find (digging in the code) that it was
	ignoring most of the sample files due to this undocumented variable.

	* doc/misc/gnus.texi (Creating a spam-stat dictionary): Document
	the variable 'spam-stat-process-directory-age'.  (bug#39780)

2020-04-18  Eli Zaretskii  <eliz@gnu.org>

	Avoid crashes in regex-emacs.c due to GC

	* src/regex-emacs.c (re_match_2_internal): Prevent GC from
	invalidating C pointers to buffer text.  (Bug#40661)

2020-04-18  Eli Zaretskii  <eliz@gnu.org>

	Fix "C-u M-!" when 'shell-command-dont-erase-buffer' is non-nil

	* lisp/simple.el (shell-command-dont-erase-buffer): Clarify the
	effect of the various values in the doc string.
	(shell-command-save-pos-or-erase, shell-command): Don't move or
	push point if the output will go to the current buffer.
	(Bug#40690)
	(shell-command): Mention 'shell-command-dont-erase-buffer' in the
	doc string.

	* test/lisp/simple-tests.el
	(with-shell-command-dont-erase-buffer): Don't is shell quoting
	'like this', as it doesn't work on MS-Windows; quote "like this"
	instead.
	(simple-tests-shell-command-dont-erase-buffer): Adapt the test to
	the new modus operandi.

	* doc/emacs/misc.texi (Single Shell): Document the effect of the
	various values of 'shell-command-dont-erase-buffer'.

	* etc/NEWS: Expand and reword the entry regarding changes in
	'shell-command-dont-erase-buffer'.

2020-04-17  Paul Eggert  <eggert@cs.ucla.edu>

	Fix cl-most-positive-float doc typo

	* doc/misc/cl.texi (Implementation Parameters):
	Fix typo in documentation of cl-most-positive-float.

2020-04-16  jakub-w  <jakub-w@riseup.net>  (tiny change)

	Fix a typo in calculator.el

	* lisp/calculator.el (calculator-expt): Overflowing exponentiation
	caused the function to return -1.0e+INF if the base was an odd,
	negative number, no matter what the exponent was.

2020-04-16  Amin Bandali  <bandali@gnu.org>

	* lisp/erc/erc.el: Add URL to the new ERC page on the Emacs site

2020-04-16  Nicolas Petton  <nicolas@petton.fr>

	Bump Emacs version to 27.0.91

	* README:
	* configure.ac:
	* msdos/sed2v2.inp:
	* nt/README.W32: Bump Emacs version.

2020-04-16  João Távora  <joaotavora@gmail.com>

	Correct Fido-mode's backspacing of directories with spaces

	(Bug#40625)

	* lisp/icomplete.el (icomplete-fido-backward-updir): Use
	zap-up-to-char.

2020-04-15  João Távora  <joaotavora@gmail.com>

	Default completion-flex-nospace to nil

	By default, the flex completion style _does_ match spaces.

	(Bug#40625)

	* lisp/icomplete.el (icomplete--fido-mode-setup): Force
	completion-flex-nospace to nil.

	* lisp/minibuffer.el (completion-flex-nospace): Default to nil.

2020-04-15  Eli Zaretskii  <eliz@gnu.org>

	Improve an example in w32 FAQ

	* doc/misc/efaq-w32.texi (Font names): Modify the expression to
	insert a lits of all installed fonts so as to avoid producing too
	long lines.  Suggested by ndame <ndame@protonmail.com>.

2020-04-15  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp/htmlfontify.el (hfy-force-fontification): Fix bug#40642

	Don't presume that `jit-lock-mode` is enabled.
	Do not merge to `master`.

2020-04-15  Nicolas Petton  <nicolas@petton.fr>

	* admin/authors.el: Add an author alias.

2020-04-15  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>

	Limit RLIMIT_NOFILE to FD_SETSIZE on macOS

	* src/nsterm.m ([EmacsApp applicationDidFinishLaunching:]): Call
	CoreFoundation functions that increase RLIMIT_NOFILE behind our back
	during startup, and then set RLIMIT_NOFILE back to FD_SETSIZE to avoid
	crashes in setup_process_coding_system  (Bug#39164).

2020-04-15  Martin Rudalics  <rudalics@gmx.at>

	Fix Elisp manual entry on 'set-window-configuration'

	* doc/lispref/windows.texi (Window Configurations): Fix
	description of 'set-window-configuration'.

2020-04-14  Nicolas Petton  <nicolas@petton.fr>

	* admin/authors.el: Add missing author aliases.

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2020-04-14  Mattias Engdegård  <mattiase@acm.org>

	Fix edge case errors in filename-matching regexps

	These changes fix actual or latent bugs in regexps that match
	file names, such as PATTERN arguments to 'directory-files'.  See
	https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00265.html

	* admin/authors.el (authors-obsolete-files-regexps)
	(authors-renamed-files-regexps):
	* lisp/auth-source-pass.el (auth-source-pass-entries):
	* lisp/calendar/todo-mode.el (todo-show, todo-find-filtered-items-file)
	(todo-filter-items, todo-reset-nondiary-marker, todo-reset-done-string)
	(todo-reset-comment-string, todo-reset-highlight-item):
	* lisp/cedet/semantic/db-ebrowse.el (semanticdb-load-ebrowse-caches):
	* lisp/cedet/semantic/texi.el (semantic-texi-associated-files):
	* lisp/cedet/srecode/map.el (srecode-map-update-map):
	* lisp/dired.el (dired-re-no-dot):
	* lisp/emacs-lisp/autoload.el (update-directory-autoloads):
	* lisp/emacs-lisp/shadow.el (load-path-shadows-find):
	* lisp/files.el (auto-mode-alist, directory-files-no-dot-files-regexp):
	* lisp/finder.el (finder-compile-keywords):
	* lisp/generic-x.el (inetd-conf-generic-mode, named-boot-generic-mode)
	(resolve-conf-generic-mode, etc-modules-conf-generic-mode):
	* lisp/gnus/gnus-agent.el (gnus-agent-read-agentview)
	(gnus-agent-regenerate-group, gnus-agent-update-files-total-fetched-for):
	* lisp/gnus/gnus-cache.el (gnus-cache-articles-in-group):
	* lisp/gnus/gnus-score.el (gnus-score-search-global-directories):
	* lisp/gnus/gnus-util.el (gnus-delete-directory):
	* lisp/gnus/gnus-uu.el (gnus-uu-dir-files):
	* lisp/gnus/nndraft.el (nndraft-request-group):
	* lisp/gnus/nnmh.el (nnmh-request-group, nnmh-request-create-group):
	(nnmh-request-delete-group, nnmh-active-number, nnmh-update-gnus-unreads):
	* lisp/gnus/nnspool.el (nnspool-request-group):
	* lisp/gnus/spam-stat.el (spam-stat-process-directory)
	(spam-stat-test-directory):
	* lisp/help-fns.el (help-fns--first-release):
	* lisp/help.el (view-emacs-news):
	* lisp/international/quail.el (quail-update-leim-list-file):
	* lisp/international/titdic-cnv.el (batch-titdic-convert):
	* lisp/mail/mspools.el (mspools-set-vm-spool-files)
	(mspools-get-spool-files):
	* lisp/mail/rmail.el (rmail-secondary-file-regexp)
	(rmail-speedbar-match-folder-regexp):
	* lisp/net/ange-ftp.el (ange-ftp-delete-directory):
	* lisp/net/tramp.el (tramp-use-absolute-autoload-file-names):
	* lisp/obsolete/gulp.el (gulp-send-requests):
	* lisp/obsolete/vc-arch.el (vc-arch-trim-revlib):
	* lisp/org/ob-core.el (org-babel-remove-temporary-directory):
	* lisp/progmodes/ebnf2ps.el (ebnf-file-suffix-regexp, ebnf-style-database):
	* lisp/progmodes/executable.el (executable-command-find-posix-p):
	* lisp/startup.el (command-line):
	* lisp/textmodes/refer.el (refer-get-bib-files):
	* lisp/url/url-about.el (url-probe-protocols):
	* lisp/vc/vc-rcs.el (vc-rcs-register, vc-rcs-unregister):
	* test/lisp/net/tramp-archive-tests.el
	(tramp-archive-test19-directory-files-and-attributes):
	* test/lisp/net/tramp-tests.el (tramp-test19-directory-files-and-attributes):
	Replace ^ and $ with \` and \', respectively.
	Use (rx (or (not ".") "...")), translated into "[^.]\\|\\.\\.\\.",
	to match anything but "." and "..", instead of several incorrect
	regexps.

2020-04-14  Eli Zaretskii  <eliz@gnu.org>

	Clarify the doc string of 'yank'

	* lisp/simple.el (yank): Mention 'current-kill' in the doc string,
	so that people could find all the gory details of what is "the most
	recent kill" for this purpose.  (Bug#40375)

2020-04-14  Amin Bandali  <bandali@gnu.org>

	New function erc-track-switch-buffer-other-window

	* lisp/erc/erc-track.el (erc-track-switch-buffer): Factor out the
	implementation from here ...
	(erc-track--switch-buffer): ... to here.
	(erc-track-switch-buffer-other-window): New function, like
	`erc-track-switch-buffer', but uses `switch-to-buffer-other-window'
	instead, to open the buffer in another window.

2020-04-14  Amin Bandali  <bandali@gnu.org>

	New function erc-switch-to-buffer-other-window

	* lisp/erc/erc.el (erc-switch-to-buffer): Factor out the buffer choice
	implementation from here ...
	(erc--switch-to-buffer): ... to here.
	(erc-switch-to-buffer-other-window): New function, like
	`erc-switch-to-buffer', but uses `switch-to-buffer-other-window'
	instead, to open the buffer in another window.

2020-04-13  Štěpán Němec  <stepnem@gmail.com>

	Clarify documentation on inhibit-modification-hooks intended usage

	Cf. bug#40332 and the discussion at
	https://lists.gnu.org/archive/html/emacs-devel/2020-03/msg00921.html

	* doc/lispref/text.texi (Change Hooks):
	* src/insdel.c (syms_of_insdel): Clarify the intended usage of
	'inhibit-modification-hooks'.

2020-04-13  Štěpán Němec  <stepnem@gmail.com>

	gnus-shorten-url: Improve and avoid args-out-of-range error

	'gnus-shorten-url' (used by 'gnus-summary-browse-url') ignored
	fragment identifiers and didn't check substring bounds, in some cases
	leading to runtime errors, e.g.:

	  (gnus-shorten-url "https://some.url.with/path/and#also_a_long_target" 40)
	  ;; => Lisp error: (args-out-of-range "/path/and" -18 nil)

	This commit makes it account for #fragments and fixes faulty string
	computation.  (bug#39980)

	Do not merge to master, where the helper is put to subr-x.el.

	* lisp/gnus/gnus-sum.el (gnus--string-truncate-left): New helper
	function (copied from 'ediff-truncate-string-left').
	(gnus-shorten-url): Use it and don't drop #fragments.

2020-04-13  Eli Zaretskii  <eliz@gnu.org>

	Minor wording change in Introduction to Programming in Emacs Lisp

	* doc/lispintro/emacs-lisp-intro.texi (Prevent confusion): Mention
	that dynamic scoping is only the default in Emacs Lisp, not the
	only scoping rule.  (Bug#40594)

2020-04-13  Eli Zaretskii  <eliz@gnu.org>

	Fix 'flymake-show-diagnostics-buffer' when line numbers are displayed

	* lisp/progmodes/flymake.el (flymake--diagnostics-buffer-entries):
	Do nothing if 'flymake--diagnostics-buffer-source' is not a
	buffer.  (Bug#40529)

2020-04-12  Eli Zaretskii  <eliz@gnu.org>

	Fix last changes describing mail commands

	* doc/emacs/sending.texi (Sending Mail): Fix the description of
	the behavior of 'C-x m' without prefix argument.  (Bug#40561)

2020-04-12  João Távora  <joaotavora@gmail.com>

	Do setup Flymake in file-less Elisp buffers

	(Bug#40573)

	* lisp/progmodes/elisp-mode.el (emacs-lisp-mode): Change
	condition for setting flymake-diagnostic-functions.

2020-04-12  Philipp Stephani  <phst@google.com>

	Fix error message for ‘cl-struct-unknown-slot’ (bug#39995)

	* lisp/emacs-lisp/cl-macs.el (cl-struct-unknown-slot): Remove spurious
	format specifiers.

2020-04-12  Eli Zaretskii  <eliz@gnu.org>

	Fix and improve documentation of mail-related features

	* lisp/simple.el (compose-mail): Clarify the effect of the
	CONTINUE argument.
	* lisp/mail/sendmail.el (mail-from-style): Update the RFC value in
	the obsolescence warning text.

	* doc/emacs/sending.texi (Sending Mail): Fix the description of
	the behavior of 'C-x m' wrt prefix argument.
	(Mail Headers): Remove the description of 'mail-from-style'.

	* etc/NEWS: Mention that 'mail-from-style' is obsolete.

	(Bug#40561)

2020-04-12  Martin Rudalics  <rudalics@gmx.at>

	Fix build failure with Fx_gtk_debug

	* src/xfns.c (Fx_gtk_debug, Sx_gtk_debug): Define only for GTK
	versions >= 3.14.0 so gtk_window_set_interactive_debugging is
	defined.  Reported by Andreas Schwab  <schwab@linux-m68k.org>.

2020-04-11  Alan Mackenzie  <acm@muc.de>

	Mention jit-lock deferred as an alternative to fast-but-imprecise-scrolling

	* doc/emacs/display.texi (Scrolling): Add a paragraph on using jit-lock
	deferred fontification as a way of obviating Emacs hanging after
	auto-repeated scrolling.

2020-04-10  Stefan Monnier  <monnier@iro.umontreal.ca>

	* doc/lispref/keymaps.texi (Extended Menu Items): Tweak :key-sequence

	Don't make it sound like `:key-sequence nil` is any different than the
	absence of `:key-sequence`.  And the performance advantage of
	`:key-sequence` disappeared long ago.

2020-04-10  Eli Zaretskii  <eliz@gnu.org>

	Fix redisplay when scrolling under redisplay-dont-pause

	* src/dispnew.c (update_window): Reset the window's
	'must_be_updated_p' flag if the window's update was completed
	without interruption.  This fixes redisplay glitches when
	'redisplay-dont-pause' is nil, at least on MS-Windows, because
	'expose_window' doesn't redraw the exposed rectangle when the
	window's 'must_be_updated_p' flag is set.

2020-04-09  Eli Zaretskii  <eliz@gnu.org>

	Fix face extension in pulse.el

	* lisp/cedet/pulse.el (pulse-reset-face): Propagate the :extend
	attribute of FACE to the face used for displaying the pulse.
	Reported by Adam Porter <adam@alphapapa.net>.

2020-04-09  Michael Albinus  <michael.albinus@gmx.de>

	* doc/misc/tramp.texi (Bug Reports): Avoid line breaks in traces.

2020-04-09  Eli Zaretskii  <eliz@gnu.org>

	Avoid assertion violation in intervals.c

	* src/intervals.c (delete_interval): Allow negative values of
	LENGTH (i).  This happens when delete_interval is called from
	set_intervals_multibyte_1, because the caller zeroes out the
	total_length field of the interval to be deleted.  See
	https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00131.html
	for more details.  See also a related old discussion at
	https://lists.gnu.org/archive/html/emacs-devel/2012-07/msg00399.html.

2020-04-08  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'jit-lock-contextually'

	* lisp/jit-lock.el (jit-lock-contextually): Clarify the jit-lock
	operation when 'jit-lock-contextually' is non-nil and non-t.

	* doc/lispref/modes.texi (Syntactic Font Lock)
	(Other Font Lock Variables): Document the relation between
	'jit-lock-register', 'font-lock-keywords-only', and syntactic
	refontification.

2020-04-08  Dmitry Gutov  <dgutov@yandex.ru>

	Speed up 'resize-mode' child frames a little

	* src/gtkutil.c (xg_frame_set_char_size): Skip resizing if the
	target dimensions are unchanged for child frames with
	'resize-mode' resize policy as well.

2020-04-06  Martin Rudalics  <rudalics@gmx.at>

	Fix some problems with moving and resizing child frames

	(1) Provide new option 'x-gtk-resize-child-frames' which allows
	to either hide a child frame during resizing or asks GTK to
	resize it "immediately".  This is needed because desktops like
	GNOME shell otherwise won't allow resizing child frames at all.
	(2) Do not try to synchronize the position of a child frame
	after moving it.  Needed because the present implementation
	introduces a 0.5 secs delay which makes dragging child frames
	virtually impossible with Lucid and Motif toolkits on desktops
	like GNOME shell that use invisible outer frame borders.

	For further information see the thread starting with
	https://lists.gnu.org/archive/html/emacs-devel/2020-01/msg00343.html

	* src/frame.c (syms_of_frame): New symbol Qxg_frame_set_char_size_4.
	* src/gtkutil.c (xg_frame_set_char_size): Hide child frame
	during resizing when 'x-gtk-resize-child-frames' equals 'hide'.
	* src/xfns.c (x_set_parent_frame, Fx_create_frame): Set
	gtk_container_resize_mode to GTK_RESIZE_IMMEDIATE for child
	frames when'x-gtk-resize-child-frames' equals 'resize-mode'.
	(Fx_gtk_debug): New function to toggle interactive GTK debugging
	from within Emacs.
	(syms_of_xfns): New symbols Qhide and Qresize_mode.
	(x-gtk-resize-child-frames): New option that allows to resize
	child frames on desktops like GNOME shell (with the mutter WM)
	that otherwise refuse to resize them.
	* src/xterm.c (x_set_offset): Don't x_sync_with_move for child
	frames, it makes moving child frames virtually impossible with
	the Lucid and Motif toolkits.

2020-04-05  Philipp Stephani  <phst@google.com>

	Fix syntax error in man page.

	* doc/man/emacs.1.in: Fix syntax of --script argument.  The Info
	manual states that --script has to be followed by a space, and the
	syntax with the equals sign doesn't actually work.

2020-04-05  Noam Postavsky  <npostavs@gmail.com>

	Handle filling of indented ChangeLog function entries

	* lisp/vc/log-edit.el (log-edit-fill-entry): Relax regexp a bit to
	recognize function entries with leading blanks.
	* test/lisp/vc/log-edit-tests.el: New test.

2020-04-05  Noam Postavsky  <npostavs@gmail.com>

	Fix void-variable n-reb in re-builder (Bug#40409)

	* lisp/emacs-lisp/re-builder.el (reb-while): Take the current value of
	the counter instead of its name.
	(reb-mark-non-matching-parenthesis): Bind n-reb to 0 at the start and
	don't wrongly treat it as dynamicly bound.

2020-04-03  Philipp Stephani  <phst@google.com>

	Fix small bug in copy_string_contents.

	* src/emacs-module.c (module_copy_string_contents): Fix incorrect
	variable use.  In this branch 'lisp_str_utf8' is always nil, so it
	makes little sense to add it as error data.

2020-04-03  Eli Zaretskii  <eliz@gnu.org>

	Fix invocations of gpg from Gnus

	* lisp/epg-config.el (epg-config--make-gpg-configuration): Bind
	coding-system-for-read/write to 'undecided', to countermand
	possible values of 'no-conversion' or somesuch by the callers.
	(Bug#40248)

2020-04-03  Martin Rudalics  <rudalics@gmx.at>

	Don't draw GTK's internal border and tab bar on top of each other

	* src/xterm.c (x_clear_under_internal_border): For GTK builds
	have 'margin' count in the height of the tab bar to avoid that
	tab bar and internal border are drawn on top of each other.

2020-04-03  Amin Bandali  <bandali@gnu.org>

	Tweak htmlfontify's generated output

	* lisp/htmlfontify.el (hfy-default-header): declare the character
	encoding for the generated HTML file.  This helps browsers display
	UTF-8 characters like the copyright symbol correctly.
	(hfy-sprintf-stylesheet): apply the default style to all of the text
	consistently, so that unstyled bits (which are not wrapped in span
	tags and are directly part of the surrounding pre tag's "innerHTML")
	have a look consistent with the rest of the document.

2020-03-30  Dmitry Gutov  <dgutov@yandex.ru>

	Handle project--files-in-directory finding no files better

	* lisp/progmodes/project.el (project--find-regexp-in-files):
	Signal user-error when passed an empty list of files.

	* lisp/progmodes/xref.el (xref-matches-in-files):
	Make sure FILES is not empty.

2020-03-30  Alan Mackenzie  <acm@muc.de>

	Let imenu to work on the menu bar when its list is a single non-nested member.

	* lisp/imenu.el (imenu-update-menubar): No longer accept a list of length 1 as
	being sufficient evidence for a nested list structure.  Instead, additionally
	check whether or not certain elements are atoms.

2020-03-30  Juri Linkov  <juri@linkov.net>

	* lisp/image/image-converter.el: Fix customization of image-converter.

	* lisp/image/image-converter.el (image-convert-p): Update
	image-converter-regexp when image-converter was customized (bug#39994).

2020-03-29  Andreas Schwab  <schwab@linux-m68k.org>

	Fix url-cookie.el for lexical binding

	* lisp/url/url-cookie.el (url-cookie-handle-set-cookie): Use setq
	instead of set to modify lexical binding.

2020-03-29  Noam Postavsky  <npostavs@gmail.com>

	Don't suggest setting face-remapping-alist to a literal (Bug#39812)

	* src/xfaces.c (syms_of_xfaces) <face-remapping-alist>: Use copy-tree
	in the costring example code, and note why.

2020-03-27  Mattias Engdegård  <mattiase@acm.org>

	Calc: don't treat nil as an integer (bug#40155)

	Make Math-num-integerp return false for nil, following Math-integerp
	which was changed in the bignum reform.  This fixes a crash in
	calc-graph-fast.

	Reported by Narendra Joshi.

	* lisp/calc/calc-macs.el (Math-num-integerp): Not true for nil.
	* test/lisp/calc/calc-tests.el (calc-Math-integerp): New tests.

2020-03-25  Eli Zaretskii  <eliz@gnu.org>

	* lisp/files.el (directory-files-recursively): Doc fix.  (Bug#40202)

2020-03-25  Michael Albinus  <michael.albinus@gmx.de>

	Document how to disable Tramp file archives

	* doc/misc/tramp.texi (Archive file names): Explain how to disable
	file archives.

2020-03-24  Lars Ingebrigtsen  <larsi@gnus.org>

	Don't add repeated xlmns:xlink declarations in svg-create

	* lisp/svg.el (svg-create): Fix previous unconditional addition of
	the xmlns:xlink declaration -- callers may already add one, and
	having it twice is something most svg libraries doesn't like.

2020-03-23  Mattias Engdegård  <mattiase@acm.org>

	Calc: Declare dynamic variable bound in lexbind code (bug#40185)

	* lisp/calc/calc.el: Declare math-comp-selected as dynamic.

2020-03-23  Eli Zaretskii  <eliz@gnu.org>

	Don't build the Gnulib 'utimens' module on MinGW

	* nt/gnulib-cfg.mk (OMIT_GNULIB_MODULE_utimens): Omit the
	'utimens' module in the MinGW build: 'utimens' is not used by
	Emacs, and 'fdutimens' is implemented in w32.c.

2020-03-23  Phillip Lord  <phillip.lord@russet.org.uk>

	Add Harfbuzz dependency

	* admin/nt/dist-build/build-dep-zips.py: Add harfbuzz as a dependency.

2020-03-23  Noam Postavsky  <npostavs@gmail.com>

	Don't signal during backtrace unrewind (Bug#40088)

	backtrace_eval_unrewind is used to temporarily reverse
	let-bindings (it's called with a positive argument to reverse
	bindings, and then a negative argument to re-apply them) by
	backtrace--locals and backtrace-eval.  For the SPECPDL_LET_DEFAULT and
	SPECPDL_LET_LOCAL cases (which occur for let-bindings on buffer-local
	variables), the code calls Fdefault_value and Fbuffer_local_value on
	the symbol.

	For symbols which are unbound at top-level, the first (with positive
	argument) call to backtrace_eval_unrewind will set the symbol's value
	to unbound (putting the current value in the specpdl's "old value"
	slot).  On the second (with negative argument) call,
	backtrace_eval_unrewind attempts to retrieve the symbol's value with
	Fdefault_value or Fbuffer_local_value, but that raises a void-variable
	signal.  This interrupts the restoration of the let-bindings, so any
	other variables more recent on the stack will now have the wrong
	value.

	* src/data.c (default_value): Make non-static.
	* src/lisp.h: Declare it.
	* src/eval.c (backtrace_eval_unrewind): Replace the calls to
	Fdefault_value and Fbuffer_local_value with default_value and
	buffer_local_value, respectively.  The latter do exactly the same as
	the former, except if the symbol's value is Qunbound they just return
	it instead of signaling void-variable.

2020-03-23  Noam Postavsky  <npostavs@gmail.com>

	Fix a couple of problems in changelog generating functions

	* lisp/vc/diff-mode.el (diff-add-log-current-defuns): If there is a
	scan-error when calling end-of-defun, go to end of hunk.  This can
	easily happen since we are calling end-of-defun on a partial code
	fragment from a diff.
	* lisp/vc/log-edit.el (log-edit-generate-changelog-from-diff): Bind
	display-buffer-overriding-action around the log-edit-show-diff call
	only.  Otherwise, it can affect, for example, debugger windows
	triggered by the diff-add-log-current-defuns call.

2020-03-23  Noam Postavsky  <npostavs@gmail.com>

	Fix cl-concatenate (Bug#40180)

	* lisp/emacs-lisp/cl-extra.el (cl-concatenate): Use apply, to avoid
	adding extra nesting of args.
	* test/lisp/emacs-lisp/cl-extra-tests.el (cl-concatenate): New test.

2020-03-21  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of project.el commands

	* lisp/progmodes/project.el (project-find-regexp): Require 'grep'
	to be able to call 'grep-read-files'.
	(project-search, project-query-replace-regexp): Doc fixes.

	* doc/emacs/maintaining.texi (Projects): New section.
	* doc/emacs/emacs.texi (Top): Add "Projects" to the detailed menu.

2020-03-20  Zhu Zihao  <all_but_last@163.com>  (tiny change)

	Make svg images with links valid

	* lisp/svg.el (svg-create): Specify xlink namespace for svg images
	(bug#40010).

2020-03-20  Juri Linkov  <juri@linkov.net>

	* lisp/tab-line.el (tab-line-new-button-show): New defcustom.

	* lisp/tab-line.el (tab-line-format-template): Use tab-line-new-button-show.
	(tab-line-new-tab-choice): Remove choice 'nil' with "No button".
	(tab-line-separator): Add docstring.

2020-03-19  Lars Ingebrigtsen  <larsi@gnus.org>

	Don't have exif bugging out on short strings

	* lisp/image/exif.el (exif--direct-ascii-value): New function
	(bug#40127).
	(exif--parse-directory): Use it to get the correct values for
	in-directory (i.e., shorter than 4 octets) strings.

2020-03-19  Robert Pluim  <rpluim@gmail.com>

	Use correct registry name for windows-1251 charset

	* src/ftfont.c (fc_charset_table): The registry to use to lookup
	windows-1251 charset is microsoft-cp1251, not windows-1251.
	(Bug#40097)

2020-03-19  Amin Bandali  <bandali@gnu.org>

	ERC: Update maintainer address

2020-03-18  Philipp Stephani  <phst@google.com>

	Remove raw carriage return characters from test file.

	This protects against tools that mangle newline characters in text
	files.

	* test/lisp/electric-tests.el (electric-pair-mode-newline-between-parens)
	(electric-layout-mode-newline-between-parens-without-e-p-m)
	(electric-layout-mode-newline-between-parens-without-e-p-m-2): Escape
	carriage return characters.

2020-03-17  Robert Pluim  <rpluim@gmail.com>

	Recalculate default font when switching font backend

	This is an updated version of the patch by Dmitry Antipov
	<dmantipov@yandex.ru> in
	<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=23386#43>.

	Fixes Bug#23386

	* src/dispextern.h (struct redisplay_interface): New member
	default_font_parameter.
	* src/xterm.h: Add prototype for x_default_font_parameter.
	* src/xterm.c (x_redisplay_interface): Initialize
	default_font_parameter member.
	* src/xfns.c (x_default_font_parameter): Make non-static.
	* src/w32term.h: Add prototype for w32_default_font_parameter
	* src/w32fns.c (w32_default_font_parameter): Make non-static.
	* src/w32term.c (w32_redisplay_interface): Initialize
	default_font_parameter member.
	* src/nsterm.m (ns_redisplay_interface): Add dummy
	ns_default_font_parameter (there is currently only one possible font
	backend on macOS).  Initialize default_font_parameter member.
	* src/frame.c (gui_set_font_backend): Recalculate default font using
	RIF default_font_parameter to avoid crash when changing font backend.

2020-03-17  Juri Linkov  <juri@linkov.net>

	* lisp/tab-line.el: Fix tab-line-format and tab-line-format-template.

	* lisp/tab-line.el (tab-line-format): Use buffer-name in the cache key
	instead of just buffer object to invalidate the cache on buffer renaming.
	(tab-line-format-template): Always leave the separator after the last tab
	like tab-bar.el already does.

2020-03-16  Stefan Monnier  <monnier@iro.umontreal.ca>

	* etc/NEWS: Make the `--eval` example slightly more precise

2020-03-15  Juri Linkov  <juri@linkov.net>

	* lisp/image/image-converter.el: Support more ImageMagick versions (bug#39994)

	* lisp/image/image-converter.el (image-converter--probe): Match
	a possible additional second column in some ImageMagick versions
	of "convert -list format".

2020-03-14  Eli Zaretskii  <eliz@gnu.org>

	Support Unicode 13.0

	* admin/unidata/BidiBrackets.txt:
	* admin/unidata/BidiMirroring.txt:
	* admin/unidata/Blocks.txt:
	* admin/unidata/NormalizationTest.txt:
	* admin/unidata/SpecialCasing.txt:
	* admin/unidata/UnicodeData.txt:
	* admin/unidata/copyright.html:
	* test/manual/BidiCharacterTest.txt: Updated files imported from
	Unicode v13.0.

	* admin/unidata/blocks.awk: Add "Symbols for Legacy Computing" to
	known aliases.

	* lisp/international/fontset.el (script-representative-chars)
	(setup-default-fontset): Add new scripts.
	* lisp/international/characters.el: Set syntax for Symbols for
	Legacy Computing characters.  Update setting of char-width-table.
	* lisp/international/mule-cmds.el (ucs-names): Update ranges of
	characters for which we want names in 'ucs-names'.

	* test/lisp/international/ucs-normalize-tests.el
	(ucs-normalize-tests--failing-lines-part1)
	(ucs-normalize-tests--failing-lines-part2): Update according to
	'ucs-normalize-check-failing-lines'.

2020-03-14  Lars Ingebrigtsen  <larsi@gnus.org>

	Fix regression in wisent-total-conflicts

	* lisp/cedet/semantic/wisent/comp.el (wisent-total-conflicts):
	There may not be a current source file.  In that case, don't try
	to keep track of the number of expected conflicts (bug#39911).

2020-03-14  Alan Mackenzie  <acm@muc.de>

	* lisp/progmodes/cc-defs.el (c-version): update to 5.34.1 for Emacs 27.1

	Don't merge to master.

2020-03-14  Philipp Stephani  <phst@google.com>

	* lisp/textmodes/fill.el (fill-nobreak-predicate): Fix documentation.

2020-03-14  Stefan Kangas  <stefankangas@gmail.com>

	Improve Package Menu hiding docstrings

	* lisp/emacs-lisp/package.el (package-menu-toggle-hiding): Add
	reference to 'package-menu-hidden-regexps'.
	* lisp/emacs-lisp/package.el (package-menu-hide-package): Improve
	docstring to say that hiding is saved in a user option.  Fix a
	typo.  (Bug#39436)

2020-03-14  Eli Zaretskii  <eliz@gnu.org>

	Fix display of Big5 characters when using Fontconfig

	* src/ftfont.c (fc_charset_table): Fix the value of the big-5
	representative codepoint.  Reported by Brian Schack
	<bschack-cocoa@usa.net>.  (Bug#40057)

	* src/macfont.m (cf_charset_table): Adjust the comment.

2020-03-13  Eli Zaretskii  <eliz@gnu.org>

	Fix a recent documentation change

	* doc/emacs/frames.texi (Mouse Commands): More detailed
	description of how tilting the mouse-wheel works.

	* lisp/mwheel.el (mouse-wheel-tilt-scroll)
	(mouse-wheel-flip-direction): Fix the wording of doc strings.
	(Bug#39979)

2020-03-13  Eli Zaretskii  <eliz@gnu.org>

	Fix last change

	* lisp/tab-bar.el (tab-bar-new-button-show): Fix wording of the
	doc string.

2020-03-13  Juri Linkov  <juri@linkov.net>

	* lisp/tab-bar.el: Last-minute changes.

	* lisp/tab-bar.el (tab-bar-mode): Check for non-nil
	tab-bar-new-button and tab-bar-close-button.
	(tab-bar-new-button-show): New defcustom.
	(tab-bar-make-keymap-1): Check for tab-bar-new-button-show.
	(tab-bar-separator): Add docstring.

2020-03-12  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp/subr.el (cancel-change-group): Fix bug#39680

	Don't re-use an existing `pending-undo-list` even if (eq last-command 'undo)
	since there might have been changes to the buffer since that `undo` command
	and the `pending-undo-list` can hence be invalid for the current
	buffer contents.

2020-03-12  İ. Göktuğ Kayaalp  <self@gkayaalp.com>

	Improve docs for horizontal scrolling with mouse and touchpad (Bug#39979)

	* lisp/mwheel.el (mouse-wheel-tilt-scroll,
	mouse-wheel-flip-direction): Improve docstrings.
	* doc/emacs/frames.texi (Mouse Commands): Mention touchpads.

2020-03-10  Juri Linkov  <juri@linkov.net>

	* lisp/emacs-lisp/package.el (package-install): Fix typo in docstring.

2020-03-09  Paul Eggert  <eggert@cs.ucla.edu>

	Port .gdbinit to clang with -gdwarf-4

	* src/.gdbinit (xgetsym): Port to clang with -gdwarf-4, which
	doesn’t output the type of lispsym anywhere other than emacs.o
	(Bug#39962).

2020-03-09  Mattias Engdegård  <mattiase@acm.org>

	Simplify rx example in manual

	* doc/lispref/searching.texi (Rx Notation):
	Use the 'not' shorthand introduced in Emacs 27.

2020-03-09  Paul Eggert  <eggert@cs.ucla.edu>

	* src/timefns.c: Add comments.

2020-03-08  Paul Eggert  <eggert@cs.ucla.edu>

	* src/timefns.c: Add comments.

2020-03-08  Andrew Eggenberger  <andrew.eggenberger@gmail.com>  (tiny change)

	Eliminate use of cl-concatenate in 'seq' package

	Fixes (Bug#39761) by making cl-extra dependent on seq rather than
	vice versa.
	* lisp/emacs-lisp/seq.el (seq-concatenate): Move cl-concatenate's
	code here instead of calling it.
	* lisp/emacs-lisp/cl-extra.el (cl-concatenate): Use cl-concatenate.

2020-03-07  Paul Eggert  <eggert@cs.ucla.edu>

	Fix bug with JIT stealth timers

	* lisp/emacs-lisp/timer.el (run-at-time): Don’t assume that Lisp
	time values must be conses (Bug#39944).

2020-03-07  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/lispref/os.texi (time-subtract): Doc fix.

2020-03-07  Alan Third  <alan@idiocy.org>

	NS port documentation updates

	* doc/emacs/macos.texi (Mac / GNUstep Customization): Document some
	more of the ns- variables and remove incorrect font back-end
	information.
	* etc/NEWS: Update the documentation status of macOS news entries.

2020-03-07  João Távora  <joaotavora@gmail.com>

	Let fido-mode users force a minibuffer-exit

	* lisp/icomplete.el (icomplete-fido-exit):
	Add FORCE arg.  Rewrite docstring. (bug#38992)

2020-03-07  Dmitry Gutov  <dgutov@yandex.ru>

	icomplete-fido-exit: New command for the M-j binding

	* lisp/icomplete.el (icomplete-fido-exit): New command.
	(icomplete-fido-mode-map): Use it (bug#38992).

2020-03-07  Dmitry Gutov  <dgutov@yandex.ru>

	minibuffer-force-complete-and-exit: Allow input with no matches

	* lisp/minibuffer.el (minibuffer--require-match): New variable.
	(completing-read-default): Bind it to the REQUIRE-MATCH value.
	(minibuffer-force-complete-and-exit): Consult it to allow input
	with no matches when a match is not required (bug#38992).

	* lisp/icomplete.el (icomplete-exhibit): Use it to render the
	correct parens around matches.

2020-03-07  Eli Zaretskii  <eliz@gnu.org>

	Document that 'byte-compile-dynamic' is obsolete

	* doc/lispref/compile.texi (Dynamic Loading): Document that this
	is deprecated.

	* etc/NEWS: mark the 'byte-compile-dynamic' entry as documented.

2020-03-07  Eli Zaretskii  <eliz@gnu.org>

	Document the changes in 'read-answer'

	* doc/lispref/minibuf.texi (Multiple Queries): Document the
	fact that 'read-answer' can now accept non-character input
	events.

2020-03-07  Eli Zaretskii  <eliz@gnu.org>

	Document changes in lexical-binding

	* doc/lispref/variables.texi (Using Lexical Binding): Document
	that lexical-binding is now turned on by default in more cases.

	* etc/NEWS: Fix wording of the NEWS entry about the above, and mark it
	as fully documented.

2020-03-06  Amin Bandali  <mab@gnu.org>

	Update ERC mailing list address

	* lisp/erc/erc.el (erc-official-location): As part of bringing ERC
	under the Emacs umbrella, erc-discuss has been renamed to emacs-erc,
	and will be *the* mailing list for discussions and announcements about
	ERC going forward.  The other two lists, erc-announce and erc-commit,
	are now retired.  For more details, see the announcement at
	<https://lists.gnu.org/archive/html/emacs-erc/2020-03/msg00001.html>.

2020-03-06  Roland Winkler  <winkler@gnu.org>

	Use regexp-opt to define bibtex-autokey-transcriptions.  (Bug#39686)

2020-03-06  Eli Zaretskii  <eliz@gnu.org>

	Improve documentation of 'table-generate-source'

	* lisp/textmodes/table.el (table-generate-source): Doc fix.
	(Bug#39935)

	* etc/NEWS: Fix wording of the 'table-generate-source' entry and
	mark it as documented.

2020-03-06  Eli Zaretskii  <eliz@gnu.org>

	Attempt to avoid rare segfaults in show_mouse_face

	* src/xdisp.c (show_mouse_face): Don't display the active region
	if called on a frame different from the one recorded in HLINFO.
	(Bug#37671)

2020-03-05  Eli Zaretskii  <eliz@gnu.org>

	Avoid crashes when a fontset has strange entries

	* src/fontset.c (reorder_font_vector): Skip nil entries in the
	loop that assigns scores to rfont_def's.
	(fontset_compare_rfontdef): Cope with nil.  This has the effect of
	moving any nil entries to the end of the font-group, and avoids
	crashing if an element other than the last in the font-group is
	nil.  (Bug#39892)

2020-03-05  Mattias Engdegård  <mattiase@acm.org>

	Fix rx error with ? and ??

	The ? and ?? rx operators are special in that they can be written as
	characters (space and '?' respectively).  This confused the definition
	look-up mechanism in rare cases.

	* lisp/emacs-lisp/rx.el (rx--expand-def): Don't look up non-symbols.
	* test/lisp/emacs-lisp/rx-tests.el (rx-charset-or): Test.

2020-03-05  Mattias Engdegård  <mattiase@acm.org>

	* lisp/emacs-lisp/rx.el (rx--string-to-intervals): Fix error string.

2020-03-05  Justin Burkett  <justin@burkett.cc>  (tiny change)

	Fix args in 'window-text-pixel-size' call in 'fit-window-to-buffer'

	* lisp/window.el (fit-window-to-buffer): Fix arguments in
	'window-text-pixel-size' call.

2020-03-04  João Távora  <joaotavora@gmail.com>

	Have pulse.el preserve existing overlay priorities

	(Bug#39821)

	* lisp/cedet/pulse.el (pulse-momentary-highlight-overlay): Save
	overlay priority.
	(pulse-momentary-unhighlight): Restore.

2020-03-04  Alan Mackenzie  <acm@muc.de>

	CC Mode: Fix the handling of two adjacent after-change-functionses.

	The bug involved failing to set c-new-END correctly, which lead to an
	args-out-of-range error when after-change-functions was invoked twice without
	an intervening invocation of before-change-functions.

	* lisp/progmodes/cc-mode.el (c-after-change): Correct a coding error in the
	handling of c-just-done-before-change.

2020-03-04  Alan Mackenzie  <acm@muc.de>

	Fix combine-change-calls-1 for when buffer-undo-list is t

	* lisp/subr.el (combine-change-calls-1): Bind before/after-change-functions to
	nil also when buffer-undo-list is t.

2020-03-04  Mattias Engdegård  <mattiase@acm.org>

	Don't misinterpret doc string as initial value

	* lisp/loadhist.el (loadhist--restore-autoload):
	* lisp/progmodes/vhdl-mode.el (vhdl-font-lock-keywords-0):
	Prevent the doc string from being used as initial value.

2020-03-04  Stefan Kangas  <stefankangas@gmail.com>

	Bump checkdoc-version to match library header

	* lisp/emacs-lisp/checkdoc.el (checkdoc-version): Bump version.

2020-03-04  Noam Postavsky  <npostavs@gmail.com>

	Explain how to unset mode bindings (Bug#39802)

	* doc/emacs/custom.texi (Init Rebinding): Explain that passing nil to
	define-key will unbind keys, and extend the example accordingly.

2020-03-04  Noam Postavsky  <npostavs@gmail.com>

	Fix describe-variable on values with circular syntax (Bug#39805)

	* lisp/help-fns.el (describe-variable): Set syntax tables before
	calling pp-buffer.

2020-03-04  Juri Linkov  <juri@linkov.net>

	Improve documentation of next-error-highlight-no-select (bug#38778)

	* doc/emacs/building.texi (Compilation Mode):
	Mention next-error-highlight-no-select.

	* lisp/simple.el (next-error-highlight): Add reference to
	next-error-highlight-no-select.
	(next-error-highlight-no-select): Add reference to
	next-error-highlight.

2020-03-03  Andreas Schwab  <schwab@linux-m68k.org>

	Fix implicit declaration of getenv and atol

	* src/gtkutil.c: Include <stdlib.h>.

2020-03-03  Eli Zaretskii  <eliz@gnu.org>

	Fix handling MS-Windows keyboard input above the BMP

	* src/w32term.c (w32_read_socket): If we get a WM_UNICHAR message
	with a surrogate codepoint, assemble the corresponding character
	code above the BMP from its UTF-16 encoding, communicated in two
	consecutive WM_UNICHAR messages.

2020-03-03  Mattias Engdegård  <mattiase@acm.org>

	* etc/NEWS: More complete description of rx 'not' changes.

2020-03-02  Juri Linkov  <juri@linkov.net>

	* doc/emacs/mini.texi (Yes or No Prompts): 'y-or-n-p' now uses the minibuffer.

2020-03-02  Robert Pluim  <rpluim@gmail.com>

	Don't attempt to cache glyph metrics for FONT_INVALID_CODE

	This was causing massive slowdown in redisplay when eg #xfe0f
	(VARIATION SELECTOR-16) was present, as the cache ended up very large,
	unused, and being recreated on every call to font_fill_lglyph_metrics
	(Bug#39133).

	* src/composite.c (fill_gstring_body): Hoist FONT_OBJECT_P check out
	of loop.  Calculate glyph code and check for FONT_INVALID_CODE before
	calling font_fill_lglyph_metrics.  Pass glyph code to it.

	* src/font.c (font_fill_lglyph_metrics): Add code parameter, move
	glyph code calculation up the call stack into fill_gstring_body.

	* src/font.h: Adjust font_fill_lglyph_metrics prototype.

2020-03-01  Sergey Trofimov  <sarg@sarg.org.ru>  (tiny change)

	Fix fit-frame-to-buffer for multi-monitor setup

	* lisp/window.el (fit-frame-to-buffer): Call
	'frame-monitor-attributes' instead of
	'display-monitor-attributes-list'.  Fix geometry calculations for
	multiple monitors.

2020-03-01  Mattias Engdegård  <mattiase@acm.org>

	rx: Improve 'or' compositionality (bug#37659)

	Perform 'regexp-opt' on nested 'or' forms, and after expansion of
	user-defined and 'eval' forms.  Characters are now turned into strings
	for wider 'regexp-opt' scope.  This preserves the longest-match
	semantics for string in 'or' forms over composition.

	* doc/lispref/searching.texi (Rx Constructs): Document.
	* lisp/emacs-lisp/rx.el (rx--normalise-or-arg)
	(rx--all-string-or-args): New.
	(rx--translate-or): Normalise arguments first, and check for strings
	in subforms.
	(rx--expand-eval): Extracted from rx--translate-eval.
	(rx--translate-eval): Call rx--expand-eval.
	* test/lisp/emacs-lisp/rx-tests.el (rx-or, rx-def-in-or): Add tests.
	* etc/NEWS: Announce.

2020-02-29  Juri Linkov  <juri@linkov.net>

	* lisp/tab-line.el: Fix auto-hscrolling (bug#39649)

	Distinguish offsets between manual-vs-automatic scrolling
	as integers-vs-floats instead of positive-vs-negative integers.

	* lisp/tab-line.el (tab-line-format-template): Use 'numberp'
	instead of 'integerp', and 'truncate' instead of 'abs'.
	(tab-line-format): When the window-buffer was updated, set window-parameter
	to float to enable auto-hscroll after it was disabled on manual scrolling.
	(tab-line-auto-hscroll-buffer): New variable with internal buffer.
	(tab-line-auto-hscroll): Erase in tab-line-auto-hscroll-buffer.
	Use 'numberp' instead of 'integerp', 'truncate' instead of 'abs',
	and 'float' instead of '-'.
	(tab-line-hscroll): Use 'numberp' instead of 'integerp',
	and 'truncate' instead of 'abs'.

2020-02-29  Mattias Engdegård  <mattiase@acm.org>

	Fix rx charset generation

	* lisp/emacs-lisp/rx.el (rx--charset-p): Don't overquote.
	(rx--generate-alt): Generate '.' for negated newline.
	* test/lisp/emacs-lisp/rx-tests.el (rx-any, rx-charset-or): Test.

2020-02-28  Mattias Engdegård  <mattiase@acm.org>

	Fix overquoting in mule.el

	* lisp/international/mule.el (sgml-xml-auto-coding-function):
	Remove accidental quote.

2020-02-28  Paul Eggert  <eggert@cs.ucla.edu>

	* src/timefns.c (time_arith): Omit incorrect comment.

2020-02-28  Mattias Engdegård  <mattiase@acm.org>

	* lisp/vc/vc-cvs.el (vc-cvs-ignore): Copy-edit doc string

2020-02-28  Štěpán Němec  <stepnem@gmail.com>

	checkdoc: Don't mistake "cf." for sentence end

	* lisp/emacs-lisp/checkdoc.el (checkdoc-sentencespace-region-engine):
	Recognize "cf." as an abbreviation, not a sentence end.

2020-02-27  Nicolas Petton  <nicolas@petton.fr>

	Bump Emacs version to 27.0.90

	* README:
	* configure.ac:
	* msdos/sed2v2.inp:
	* nt/README.W32: Bump Emacs version.

2020-02-27  Nicolas Petton  <nicolas@petton.fr>

	* etc/AUTHORS: Update.

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2020-02-27  Nicolas Petton  <nicolas@petton.fr>

	* admin/authors.el (authors-ignored-files): Fix entries.

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2020-02-26  Eric Abrahamsen  <eric@ericabrahamsen.net>

	Fix documented slot name of eieio-instance-tracker class

	* doc/misc/eieio.texi (eieio-instance-tracker): The code has the slot
	  name as `tracking-symbol', not `tracker-symbol'.

2020-02-26  Robert Pluim  <rpluim@gmail.com>

	Range-check width passed to define-fringe-bitmap

	This prevents a crash when attempting to create a zero-width bitmap.

	* src/fringe.c (Fdefine_fringe_bitmap): Check value of width,
	signal an error if outside documented range (Bug#39662).

2020-02-26  Nicolas Petton  <nicolas@petton.fr>

	* admin/authors.el: Add missing entries

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2020-02-26  Noam Postavsky  <npostavs@gmail.com>

	Define libgnutls-version properly

	* src/gnutls.c (syms_of_gnutls) <libgnutls-version>: Define with
	DEFVAR_LISP and add docstring, so that this variable will accessible by
	help facilities.

2020-02-25  Dmitry Gutov  <dgutov@yandex.ru>

	vc-dir-ignore: More accurately choose base directory

	* lisp/vc/vc-dir.el:
	(vc-dir-ignore): Use it (bug#37189).

	* lisp/vc/vc.el:
	(vc--ignore-base-dir): Extract from vc-ignore.

2020-02-24  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp/emacs-lisp/cursor-sensor.el (cursor-sensor--detect): Change last fix

	Make sure we always work in the selected-window's buffer.

2020-02-23  Alan Mackenzie  <acm@muc.de>

	CC Mode: Protect against consecutive calls to before-change-functions ...

	without an intervening call to after-change-functions.  This would have been a
	workaround to bug #38691 had the causes of that bug not been removed.

	* lisp/progmodes/cc-mode.el (c-just-done-before-change): Add an extra value to
	this variable, 'whole-buffer, this being set by c-before-change as a signal to
	c-after-change that although c-before-change has run, it has assumed the
	entire buffer as the change region.
	(c-before-change, c-after-change): Adapt to the new meaning of the above.

2020-02-23  Noam Postavsky  <npostavs@gmail.com>

	Shorten some ppss struct field names

	* lisp/emacs-lisp/syntax.el (ppss): Capitalize docstrings.
	(ppss-comment-depth): Renamed from ppss-comment-nesting.
	(ppss-quoted-p): Renamed from ppss-after-quote-p.
	(ppss-min-depth): Renamed from ppss-minimum-paren-depth.
	(ppss-open-parens): Renamed from ppss-open-paren-positions.
	* etc/NEWS: Announce the ppss-* accessors.

2020-02-23  Alan Mackenzie  <acm@muc.de>

	Java Mode: Fix fontification of variable decl inside `for'

	* lisp/progmodes/cc-engine.el (c-forward-declarator): In place of a test for
	C++ Mode, test for either C++ Mode or Java Mode.

2020-02-23  Alan Mackenzie  <acm@muc.de>

	CC Mode: Fontify foo in "const auto foo :" correctly

	* lisp/progmodes/cc-engine.el (c-forward-decl-or-cast-1): While attempting to
	find a declaration's identifier, recast the latest found id. as that
	identifier when there is no other type identifier and the result of the most
	recent c-forward-type call is 'maybe or 'found.  In the latter case, remove
	the id. from the found types list, too.

2020-02-23  Juri Linkov  <juri@linkov.net>

	* lisp/replace.el (occur-engine-line): Revert part of fb16313025 (bug#39597)

2020-02-23  Dmitry Gutov  <dgutov@yandex.ru>

	Move more logic to vc-ignore from vc-default-ignore

	* lisp/vc/vc-dir.el (vc-dir-ignore):
	Pass relative file names to vc-ignore.

	* lisp/vc/vc.el (vc-ignore): Move the responsibility of
	constructing the ignore pattern (right now, most often a relative
	file name) using a file name received from the user, here.
	(vc-default-ignore): ...from here (bug#37189, see discussion).
	Also clarify the docstring.

2020-02-22  Eli Zaretskii  <eliz@gnu.org>

	Warn about the likes of "[:alnum:]" in regexps

	* doc/lispref/searching.texi (Char Classes): Warn about erroneous
	usage of named character classes.  Suggested by Stephen Leake
	<stephen_leake@stephe-leake.org>.

2020-02-22  Wolfgang Scherer  <wolfgang.scherer@gmx.de>

	Don't write absolute filenames and duplicate strings to CVS ignore files

	* lisp/vc/vc-cvs.el (vc-cvs-ignore): Expand filename correctly
	and pass on only the basename as the pattern.
	(vc-cvs-append-to-ignore) Do not write duplicate strings to
	.cvsignore.  New optional parameter SORT to more explicitly
	control sorting of the ignore entries.  (Bug#37215)
	* lisp/vc/pcvs.el (cvs-mode-ignore): Call 'vc-cvs-append-to-ignore'
	with SORT argument.

2020-02-21  Federico Tedin  <federicotedin@gmail.com>

	Fix cursor-sensor--detect when current buf != selected window's buf

	* lisp/emacs-lisp/cursor-sensor.el (cursor-sensor--detect): Avoid
	trying to read text properties from position taken from another
	buffer.  (Bug#38740)

2020-02-21  Eli Zaretskii  <eliz@gnu.org>

	* doc/emacs/sending.texi (Mail Sending): Fix index entries.

2020-02-21  Allen Li  <darkfeline@felesatra.moe>

	Document 'message-send-mail-function' in the Emacs manual

	Most of the manual here addresses Message mode, yet talks about
	'send-mail-function' which is used for Mail mode.
	Fixing this completely requires more involved work, but for now at
	least document the difference here.

	* doc/emacs/sending.texi (Mail Sending): Mention
	'message-send-mail-function'.  (Bug#39639)

2020-02-21  Allen Li  <darkfeline@felesatra.moe>

	Fix reference to 'message-send-and-exit' in Emacs manual

	Most of the manual here addresses Message mode, and C-c C-c directly
	above cites the Message mode command, not the Mail mode command.

	* doc/emacs/sending.texi (Mail Sending): Fix reference.  (Bug#39639)

2020-02-21  Steven Allen  <steven@stebalien.com>

	Skip shell prompt on current line in Eshell even if it's protected

	When the eshell prompt is protected (e.g., with rear non-sticky,
	inhibited movements, etc.), 'beginning-of-line' won't move to the
	actual beginning of the line and therefore won't skip over the
	prompt.
	* lisp/eshell/em-prompt.el (eshell-previous-prompt): Use
	'forward-line' to go to the beginning of the line, even if it's
	protected.  (Bug#39627)

2020-02-20  Mattias Engdegård  <mattiase@acm.org>

	Fix broken regexps

	Incorrect escaping prevented these from working as intended.
	Found by relint.

	* lisp/progmodes/cc-defs.el (c-search-backward-char-property):
	Add missing backslash.
	* lisp/progmodes/simula.el (simula-mode):
	Remove one backslash too many.

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2020-02-19  Paul Eggert  <eggert@cs.ucla.edu>

	* Makefile.in (PREFERRED_BRANCH): Now emacs-27.

2020-02-19  Paul Eggert  <eggert@cs.ucla.edu>

	Fix bug when visiting euc-jp-encoded directories

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	Problem reported by Kan Sasaki (Bug#39672).
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	* src/fileio.c (Ffile_directory_p):
	Encode filename before giving it to file_directory_p.
	This fixes a typo introduced in
	2019-09-18T02:18:14Z!eggert@cs.ucla.edu.

2020-02-17  Paul Eggert  <eggert@cs.ucla.edu>

	Clarify when fixnums are used.

	* doc/lispref/numbers.texi (Integer Basics): Clarify.
	Based on a suggestion by Noam Postavsky (Bug#39557#32).

2020-02-17  Paul Eggert  <eggert@cs.ucla.edu>

	Reorder discussion of integer basics

	* doc/lispref/numbers.texi (Integer Basics): Put the fixnum/bignum
	discussion at the end of the section, not at the start (Bug#39557).

2020-02-17  Mattias Engdegård  <mattiase@acm.org>

	Make OMake support slightly less expensive (bug#39595)

	When run with -p or -P, OMake regurgitates error messages that
	prevented further progress, indented by 6 spaces.  Use that fact
	to ameliorate the modification done to other error message regexps.

	* lisp/progmodes/compile.el (compilation-parse-errors):
	When 'omake' is enabled, allow error messages to be indented by 0 or 6
	spaces instead of any number of spaces, to avoid pathological
	behaviour.
	(compilation-error-regexp-alist-alist): Anchor the 'omake' pattern to
	bol for performance.  Repair the 'ruby-Test::Unit' pattern, which
	relied on the previously over-generous 'omake' hack.
	* etc/compilation.txt (OMake): Add examples.
	* test/lisp/progmodes/compile-tests.el (compile-tests--test-regexps-data)
	(compile-test-error-regexps): Add test for OMake (indented error).

2020-02-17  Mattias Engdegård  <mattiase@acm.org>

	Speed up 'msft' and 'watcom' compilation error regexps

	They have similar structure, and both suffer from being able to
	match leading spaces in multiple ways which leads to bad performance
	when backtracking (bug#39595).

	* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
	Improved 'msft' and 'watcom' regexps.

2020-02-17  Mattias Engdegård  <mattiase@acm.org>

	Speed up 'maven' compilation error message regexp

	Anchor the regexp at line-start to prevent quadratic behaviour when
	it doesn't match (bug#39595).  It's unclear whether the type tag, like
	[ERROR], is always present; we keep it optional just in case.

	* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
	Rewrite 'maven' regexp, using rx for clarity.
	* etc/compilation.txt (maven): More examples.
	* test/lisp/progmodes/compile-tests.el
	(compile-tests--test-regexps-data): No leading spaces; they seems to
	stem from a misunderstanding in bug#11517.

2020-02-16  Alan Mackenzie  <acm@muc.de>

	Amend c-backward-sws better to handle multiline block comments

	In particular, multiline comments lacking escaped newlines.

	* lisp/progmodes/cc-engine.el (c-backward-sws): Whilst searching backward for
	a putative beginning of macro, move back over block comments whose innards
	lack escaped newlines.

2020-02-16  Alan Mackenzie  <acm@muc.de>

	Reformulate c-end-of-macro, handling multiline block comments better

	* lisp/progmodes/cc-langs.el (c-last-open-c-comment-start-on-line-re): Comment
	out.
	(c-open-c-comment-on-logical-line-re): Remove.

	* lisp/progmodes/cc-engine.el (c-end-of-macro): Handle multiline block
	comments lacking escaped newlines using parse-partial-sexp rather than the
	former variables removed from cc-langs.el.

2020-02-15  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>

	Fix unexec failure on macOS 10.15.4

	* src/unexmacosx.c (unexec_regions_merge): Align region start addresses to
	page boundaries and then merge regions.

2020-02-15  Eli Zaretskii  <eliz@gnu.org>

	Fix 'reverse-region' when less than one line is in region

	* lisp/sort.el (reverse-region): Signal a user-error if the region
	includes less than one full line, thus avoiding an inadvertent
	deletion of text following the current line.  Fix the doc string.
	Fix comments to start with a capital letter.  (Bug#39376)

2020-02-15  Pieter van Oostrum  <pieter@vanoostrum.org>

	Correct default regexp in 'package-menu-hide-package'

	* lisp/emacs-lisp/package.el (package-menu-mode-menu): Correct default
	regexp, so it only selects the package at point.
	(Bug#39436)

2020-02-15  Pieter van Oostrum  <pieter@vanoostrum.org>

	Remove obsolete menu entry "Redisplay buffer"

	* lisp/emacs-lisp/package.el (package-menu-mode-menu): Remove obsolete
	menu entry "Redisplay buffer".
	(package-menu-mode-menu): Menu entry "Refresh Package List":
	make the doc string more accurate.
	(Bug#39436)

2020-02-14  Mattias Engdegård  <mattiase@acm.org>

	Remove redundant 'msft' compilation error rule (bug#39595)

	When the 'msft' rule was moved and modified, the old copy was left
	in place by mistake.

	* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
	Remove old rule.

2020-02-13  Stefan Monnier  <monnier@iro.umontreal.ca>

	* doc/lispref/variables.texi (special-variable-p): Clarify limits

2020-02-13  Mattias Engdegård  <mattiase@acm.org>

	Remove the optional KEEP-ORDER argument to regexp-opt

	This argument was added for the 'or' clause in rx, but it turned out
	to be a bad idea (bug#37659), and there seems to be little other use
	for it.

	* lisp/emacs-lisp/regexp-opt.el (regexp-opt): Remove KEEP-ORDER.
	* doc/lispref/searching.texi (Regexp Functions):
	* etc/NEWS: Remove it from the documentation.
	* test/lisp/emacs-lisp/regexp-opt-tests.el (regexp-opt-test--match-all)
	(regexp-opt-test--check-perm, regexp-opt-test--explain-perm)
	(regexp-opt-keep-order, regexp-opt-longest-match): Simplify test.

2020-02-13  Alan Mackenzie  <acm@muc.de>

	Make after-change-functions called from call-process get the correct BEG

	This fixes bug #39585.

	* src/callproc.c (call_process): Supply the correct CHARPOS to
	signal_after_change (twice).

2020-02-13  Bastien  <bzg@gnu.org>

	doc/misc/org.texi: Fix @dircategory

	* doc/misc/org.texi: Fix @dircategory.

2020-02-12  Eli Zaretskii  <eliz@gnu.org>

	Fix display of minibuffer prompt in ido.el

	* lisp/minibuffer.el (minibuffer--message-overlay-pos): New
	function.
	(set-minibuffer-message): Use it to determine where to show the
	overlay with the temporary message.
	* lisp/ido.el (ido-exhibit): Revert "Render Ido suggestions using
	an overlay"; this restores the original code which inserted the
	match-status information into the minibuffer, instead of
	displaying it in an overlay with an after-string.  Put the special
	'minibuffer-message' text property at the beginning of the
	inserted text.  (Bug#39379)

	* etc/NEWS:
	* doc/lispref/display.texi (Displaying Messages):
	* doc/lispref/text.texi (Special Properties): Document the
	'minibuffer-message' text property and its effect.

2020-02-12  Mattias Engdegård  <mattiase@acm.org>

	rx: Use longest match for all-string 'or' forms (bug#37659)

	Revert to the Emacs 26 semantics that always gave the longest match
	for rx 'or' forms with only string arguments.  This guarantee was
	never well documented, but it is useful and people likely have come to
	rely on it.  For example, prior to this change,

	 (rx (or ">" ">="))

	matched ">" even if the text contained ">=".

	* lisp/emacs-lisp/rx.el (rx--translate-or): Don't tell regexp-opt to
	preserve the matching order.
	* doc/lispref/searching.texi (Rx Constructs): Document the
	longest-match guarantee for all-string 'or' forms.
	* test/lisp/emacs-lisp/rx-tests.el (rx-or): Update test.

2020-02-11  Wolfgang Scherer  <Wolfgang.Scherer@gmx.de>

	Make sure not to mark directories

	* lisp/vc/vc-dir.el (vc-dir-mark-all-files):
	Make sure not to mark directories (bug#37182).

2020-02-11  Dmitry Gutov  <dgutov@yandex.ru>

	vc-hg-dir-status-files: Fix when DIR is not repository root

	* lisp/vc/vc-hg.el (vc-hg-dir-status-files):
	Make sure it works correctly in a subdirectory of the repo root.
	Bind default-directory to DIR and add 're: -I .' to the arguments
	(bug#39380).

2020-02-11  Alan Third  <alan@idiocy.org>

	Revert "Fix display of working text on NS (Bug#23412, Bug#1453)"

	This reverts commit ba042176d8931cdf9441b3b4919ec74b75019494.

	Do not merge to master (bug#38851)

2020-02-10  Alan Mackenzie  <acm@muc.de>

	c-end-of-macro: Handle block coment lines with unescaped NLs correctly

	* lisp/progmodes/cc-langs.el (c-last-open-c-comment-start-on-line-re): Make
	obsolete, and supersede by ...
	(c-open-c-comment-on-logical-line-re): New language variable.

	* lisp/progmodes/cc-engine.el (c-end-of-macro): Inside macros, handle
	multiline block comments whose line ends are not escaped correctly.

2020-02-09  Eli Zaretskii  <eliz@gnu.org>

	Fix set-fontset-font with ADD arg non-nil

	* src/fontset.c (fontset_add): Fix off-by-one error at TO.
	(Bug#39482)

2020-02-09  Alan Mackenzie  <acm@muc.de>

	Correct "different than" to "different from" where appropriate

	(doc/emacs/screen.texi)
	(doc/lispintro/emacs-lisp-intro.texi)
	(doc/misc/calc.texi)
	(doc/misc/gnus.texi)
	(doc/misc/sc.texi)
	(lisp/align.el)
	(lisp/allout-widgets.el)
	(lisp/allout.el)
	(lisp/emacs-lisp/gv.el)
	(lisp/font-lock.el)
	(lisp/gnus/mm-util.el)
	(lisp/mail/feedmail.el)
	(lisp/mail/sendmail.el)
	(lisp/mail/supercite.el)
	(lisp/org/org-attach.el)
	(lisp/progmodes/cc-langs.el)
	(lisp/progmodes/idlw-shell.el)
	(lisp/ps-print.el)
	(lisp/simple.el)
	(src/cmds.c)
	(src/editfns.c)
	(src/frame.h)
	(src/regex-emacs.c)
	(src/xfaces.c): Replace "different than" by "different from".

2020-02-08  Eli Zaretskii  <eliz@gnu.org>

	More accurate documentation of 'package-menu-hide-package'

	* doc/emacs/package.texi (Package Menu): Improve the description
	of the 'H' command.

	* lisp/emacs-lisp/package.el (package-menu-mode-menu): More
	accurate wording of the help-echo string.
	(package-menu-hide-package): Make the doc string more accurate.
	(Bug#39436)

2020-02-06  Stefan Kangas  <stefankangas@gmail.com>

	Revert "Signal user-error on duplicate package refresh"

	That commit caused errors when the connection was dropped in the
	middle of a package refresh.  To avoid any further issues this close
	to the pretest, we simply remove this feature.  (Bug#39187)

	Don't merge to master, where we will instead try to fix the bug.

2020-02-05  Juri Linkov  <juri@linkov.net>

	Wrap some set-auto-mode calls with delay-mode-hooks (bug#39190)

	* lisp/gnus/mm-view.el (mm-display-inline-fontify):
	* lisp/vc/diff-mode.el (diff-syntax-fontify-props):
	* lisp/vc/vc.el (vc-find-revision-no-save):
	Add delay-mode-hooks around set-auto-mode calls
	to not run hooks that might assume buffer-file-name
	really associates buffer with a file.

2020-02-04  Dmitry Gutov  <dgutov@yandex.ru>

	Support ido-vertical-mode better

	* lisp/ido.el (ido-exhibit):
	Prepend a space to INF if it starts with a newline (bug#39379).

2020-02-04  Juri Linkov  <juri@linkov.net>

	Fix faces tab-bar and tab-line.

	* lisp/tab-bar.el (tab-bar) <defface>:
	* lisp/tab-line.el (tab-line) <defface>:
	Check for min-colors 88 instead of type x.

2020-02-03  Robert Pluim  <rpluim@gmail.com>

	Cater for 3-argument version of pthread_setname_np

	Fixes Bug#39363.

	* configure.ac: Add check for 3-argument version of
	pthread_setname_np.
	* src/systhread.c (sys_thread_set_name)
	[HAVE_PTHREAD_SETNAME_NP_3ARG]: Call pthread_setname_np with
	3 arguments.

2020-02-02  Mattias Engdegård  <mattiase@acm.org>

	Clarify lexvar restrictions for add-to-ordered-list, add-to-history

	* lisp/subr.el (add-to-ordered-list, add-to-history):
	* doc/lispref/lists.texi (List Variables):
	* doc/lispref/minibuf.texi (Minibuffer History):
	Note in the doc string and manual that the variable arguments to
	add-to-ordered-list and add-to-history cannot refer to a lexical
	variable (bug#39373).

2020-02-01  Mattias Engdegård  <mattiase@acm.org>

	Replace add-to-list to lexical variable with push (bug#39373)

	Since 'add-to-list', being a plain function, cannot access lexical
	variables, such use must be rewritten for correctness.
	(Some instances actually do work thanks to a compiler macro,
	but it's not something code should rely on.)

	* lisp/autoinsert.el (auto-insert-alist):
	* lisp/cedet/mode-local.el (mode-local-print-bindings):
	* lisp/net/tramp-cache.el (tramp-flush-connection-properties)
	(tramp-list-connections):
	* lisp/net/zeroconf.el (zeroconf-list-service-names)
	(zeroconf-list-service-types, zeroconf-list-services):
	* lisp/org/org.el (org-reload):
	* lisp/whitespace.el (whitespace-report-region):
	* test/lisp/emacs-lisp/map-tests.el (test-map-do):
	Replace add-to-list with push.

2020-02-01  Mattias Engdegård  <mattiase@acm.org>

	Clarify add-to-list documentation (bug#39373)

	While add-to-list often works with lexical variables, this is a hack
	that isn't always effective; better tell the user not to try.

	* doc/lispref/lists.texi (List Variables): Add a note about lexical
	variables to the add-to-list description.  Fix the equivalent code.
	* lisp/subr.el (add-to-list): Amend doc string.

2020-02-01  Stephen Gildea  <stepheng+emacs@gildea.com>

	MH-E: alter content in mh-display-msg, not mh-show-mode

	* lisp/mh-e/mh-show.el (mh-display-msg, mh-show-mode):  buffer-altering
	code formerly in mh-show-mode is moved to the location in mh-display-msg
	where mh-show-mode used to be called before the fix to MH-E bug #470
	moved the call earlier.

2020-02-01  Stephen Gildea  <stepheng+emacs@gildea.com>

	Update documentation for mh-show-mode-hook

	* lisp/mh-e/mh-e.el, doc/misc/mh-e.texi (mh-show-mode-hook): Now that
	the fix for MH-E bug #470 calls mh-show-mode-hook earlier, update the
	documentation to no longer say that the message contents are available.

2020-02-01  Stephen Gildea  <stepheng+emacs@gildea.com>

	Example goto-addr hook: MH-E already uses goto-address

	* lisp/net/goto-addr.el, doc/emacs/misc.texi: Do not use MH-E as the
	example of how to add a hook to goto-address, because MH-E calls
	goto-address internally.

2020-01-31  Ken Brown  <kbrown@cornell.edu>

	Extend workaround for Cygwin O_PATH bug

	* configure.ac (HAVE_CYGWIN_O_PATH_BUG): Extend to Cygwin versions
	3.1.0 through 3.1.2.  (Bug#39371)

2020-01-31  Paul Pogonyshev  <pogonyshev@gmail.com>

	* lisp/emacs-lisp/debug.el (debug): Merge the non-interactive cases

	bug#38927

	(cherry picked from commit 502059433ce0e9699eb73d21656ce6e9e127d63b)

2020-01-31  Ansgar Burchardt  <ansgar@43-1.org>

	Add more blackboard bold characters to TeX input method

	This patch adds all capital blackboard bold letters and those for "1"
	and "2". Most characters are in common use in mathematics, but it does
	not seem useful to exclude the few not widely used.

	Reference: https://en.wikipedia.org/wiki/Blackboard_bold

	* lisp/leim/quail/latin-ltx.el (latin-ltx--define-rules): Add all
	the blackboard bold commands from AMSTeX.  (Bug#21103)

2020-01-31  Yuan Fu  <casouri@gmail.com>

	Protect against errors in gdb-mi.el handlers

	* lisp/progmodes/gdb-mi.el (gdb-handle-reply): Handle errors
	in 'handler-function' so the cleanup code after it runs
	safely.  (Bug#39178)

2020-01-31  Eli Zaretskii  <eliz@gnu.org>

	Allow exiting the Python interpreter of a GDB session

	* lisp/progmodes/gdb-mi.el (gdb-delchar-or-quit): Send EOF to GDB
	if we are in an embedded interpreter.  This allows to exit from
	"pi" cleanly.  (Bug#39140)

2020-01-31  Federico Tedin  <federicotedin@gmail.com>

	Ensure minibuffer input is added to history in read_minibuf

	* src/minibuf.c (read_minibuf): Parse input string after saving
	the string to the history list instead of before, in case parsing
	signals an error or is interrupted by C-g.  (Bug#39291)

2020-01-29  Juri Linkov  <juri@linkov.net>

	Tab-bar related fixes.

	* lisp/cus-start.el (tab-bar-mode): Use dedicated group 'tab-bar'.

	* lisp/tab-bar.el (tab-bar-history-mode): Add :group 'tab-bar'.
	(tab-bar-get-buffer-tab): Add optional arg 'ignore-current-tab'.

	* lisp/desktop.el (desktop-buffers-not-to-save-function): Add docstring.

2020-01-29  Nicolas Petton  <nicolas@petton.fr>

	* admin/authors.el: Add missing entries.

2020-01-27  Stephen Gildea  <stepheng+emacs@gildea.com>

	dns-mode-soa-auto-increment-serial: safe if symbolp

	* lisp/textmodes/dns-mode.el (dns-mode-soa-auto-increment-serial):
	Mark variable as safe as a file local variable when symbolp.

2020-01-27  Juri Linkov  <juri@linkov.net>

	* lisp/wdired.el: Clean out isearch-filter-predicate (bug#37496)

	* lisp/wdired.el (wdired-change-to-dired-mode): Use remove-function to
	remove wdired-isearch-filter-read-only (whose value was added in
	wdired-change-to-wdired-mode) from local value of isearch-filter-predicate.

2020-01-27  Alan Mackenzie  <acm@muc.de>

	Finish the documentation for c-noise-macro-{,with-parens-}names.

	The doc strings and pertinent CC Mode manual page failed to mention that these
	variables could also be regular expressions.  Amend them.

	* lisp/progmodes/cc-vars.el (c-noise-macro-names)
	(c-noise-macro-with-parens-names): Amend the doc strings.

	* doc/misc/cc-mode.texi (Noise Macros): Amend the descriptions of the two
	variables.

2020-01-26  Mattias Engdegård  <mattiase@acm.org>

	Correct regexp for flags in `format' doc string

	* src/editfns.c (Fformat): Use the correct regexp for describing the
	flags in a %-sequence (place the hyphen last).

2020-01-26  Mattias Engdegård  <mattiase@acm.org>

	Moderate recommendation to escape '(' in doc strings

	Thanks to 57e2ca5c50 and related changes, opening brackets at the
	leftmost column inside doc strings are no longer mistaken for the
	start of a defun.

	* doc/lispref/tips.texi (Documentation Tips): Clarify recommendation
	and move it down the list.
	* etc/NEWS: Announce.

2020-01-26  Alan Mackenzie  <acm@muc.de>

	Objective C Mode: Make c-forward-type work with "unsigned long", etc.

	This allows the correct fontification of and correct functioning of C-c C-z
	(c-display-defun-name) in ns_get_pixel in Emacs's src/nsimage.m.

	* lisp/progmodes/cc-langs.el (c-primitive-type-prefix-kwds): For objc, use the
	same value as for c and c++ rather than the default nil.

2020-01-26  Marco Wahl  <marcowahlsoft@gmail.com>

	Fix help text about configure module support

2020-01-25  Stefan Kangas  <stefankangas@gmail.com>

	* doc/lispref/streams.texi (Output Functions): Improve indexing.

2020-01-25  Stefan Kangas  <stefankangas@gmail.com>

	Improve doc string of 'newline'

	* lisp/simple.el (newline): Doc fix.  Move 'use-hard-newlines' down,
	since it's less important than the meaning of the prefix argument, and
	is less frequently used than 'electric-indent-mode' and
	'auto-fill-mode'.  Change the wording to no longer call it an
	option.

2020-01-24  Paul Eggert  <eggert@cs.ucla.edu>

	Improve doc of eq on bignums etc.

	* doc/lispref/numbers.texi (Integer Basics):
	* doc/lispref/objects.texi (Integer Type, Equality Predicates):
	Be clearer about eq vs eql vs = on bignums, floats, and strings.

2020-01-24  Mario Lang  <mlang@blind.guru>

	Do not refer to obsolete alias

2020-01-24  Alan Third  <alan@idiocy.org>

	Remove EmacsOpenPanel and EmacsSavePanel (bug#38031)

2020-01-24  Eli Zaretskii  <eliz@gnu.org>

	* doc/emacs/files.texi (Auto Save Files): Improve indexing (bug#39259).

2020-01-24  Eli Zaretskii  <eliz@gnu.org>

	Fix inaccurate wording in the Emacs manual

	* doc/emacs/custom.texi (Modifier Keys):
	* doc/emacs/basic.texi (Inserting Text): Fix minor inaccuracies in
	describing the 'Alt' modifier.  (Bug#39254)

2020-01-23  Amin Bandali  <mab@gnu.org>

	Update ERC module URLs

	* lisp/erc/erc-autoaway.el, lisp/erc/erc-button.el,
	lisp/erc/erc-compat.el, lisp/erc/erc-fill.el, lisp/erc/erc-imenu.el,
	lisp/erc/erc-join.el, lisp/erc/erc-lang.el, lisp/erc/erc-match.el,
	lisp/erc/erc-pcomplete.el, lisp/erc/erc-ring.el,
	lisp/erc/erc-spelling.el, lisp/erc/erc-stamp.el,
	lisp/erc/erc-track.el: Update URL to friendlier form, over https.
	* lisp/erc/erc-ibuffer.el: Remove URL to nonexistent page.
	* lisp/erc/erc-list.el, lisp/erc/erc-log.el, lisp/erc/erc-notify.el,
	lisp/erc/erc-replace.el, lisp/erc/erc-services.el,
	lisp/erc/erc-sound.el, lisp/erc/erc-speedbar.el,
	lisp/erc/erc-truncate.el: Add URL to corresponding EmacsWiki page.

2020-01-23  Lars Ingebrigtsen  <larsi@gnus.org>

	Minor doc string clarification in use-hard-newlines

	* lisp/textmodes/paragraphs.el (use-hard-newlines): Clarify that
	this minor mode isn't global (bug#20461).

2020-01-23  Tino Calancha  <tino.calancha@gmail.com>

	Backport: Fix bug 39218

	* lisp/simple.el (shell-command):
	Ensure a shell command ending with `&' is run asynchronously.

2020-01-22  Stefan Kangas  <stefankangas@gmail.com>

	Prefer saying "Info manual" to "info page" in docs

	Pointed out by Eli Zaretskii in:
	https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39215#14
	* doc/emacs/Makefile.in:
	* doc/lispintro/Makefile.in:
	* doc/lispref/Makefile.in:
	* doc/misc/Makefile.in:
	* lisp/dired-x.el (top-level):
	* lisp/gnus/gnus-sum.el (gnus-summary-mode):
	* lisp/progmodes/cperl-mode.el (cperl-info-page): Doc fix; prefer
	saying "Info manual" over "info page".

2020-01-22  Juri Linkov  <juri@linkov.net>

	Tab-bar related finishing touches.

	* lisp/tab-bar.el (tab-bar-tab-name-ellipsis): Use shorter name
	instead of tab-bar-tab-name-truncated-ellipsis.
	(tab-bar-new-tab-to) <defcustom>: Add 'function' option.
	(tab-bar-new-tab-to) <function>: Use it.

	* lisp/tab-line.el (tab-line-close-tab): Add missing arg 'tab' to
	tab-line-close-tab-function funcall.

2020-01-22  Alan Mackenzie  <acm@muc.de>

	Make call_process call signal_after_change.  This fixes bug #38691.

	Now, functions such as call-proess-region invoke after-change-functions
	correctly.

	* src/callproc.c (call_process): Call prepare_to_modify_buffer in a single
	place, no longer delegating the task to insert_1_both, etc.  Call
	signal_after_change in each of two code branches, such that
	before-change-functions and after-change-functions are always called in
	balanced pairs.

2020-01-22  Paul Eggert  <eggert@cs.ucla.edu>

	* lisp/simple.el: Minor fixes to commentary.

2020-01-22  Eli Zaretskii  <eliz@gnu.org>

	Fix a few typos

	* etc/NEWS: Fix a typo.

	* src/xdisp.c (try_window_reusing_current_matrix, try_window_id):
	* src/dispnew.c (scrolling_window): Fix typos in comments.

2020-01-22  Christophe Deleuze  <christophe.deleuze@free.fr>

	Fix doc strings for image-dired rotation commands

	* lisp/image-dired.el (image-dired-rotate-thumbnail-left)
	(image-dired-rotate-thumbnail-right)
	(image-dired-rotate-original-left)
	(image-dired-rotate-original-right): Move the text in the doc
	strings about rotating the originals to the correct commands
	(bug#38928).

2020-01-22  Dmitry Gutov  <dgutov@yandex.ru>

	Render Ido suggestions using an overlay

	* lisp/ido.el (ido--overlay): New variable.
	(ido-exhibit): Render with 'after-string' on an overlay
	(bug#38457).

2020-01-22  Michael Albinus  <michael.albinus@gmx.de>

	* doc/misc/tramp.texi (Bug Reports): Encourage use of "emacs -Q".

2020-01-21  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp/vc/smerge-mode.el (smerge-match-conflict): Fix bug#38456

	This situation is not an internal error, but a perfectly normal occurrence,
	so a `cl-assert` is not right

2020-01-21  Robert Pluim  <rpluim@gmail.com>

	Correct statement about ftcr and recommend HarfBuzz

	* doc/lispref/frames.texi (Font and Color Parameters): Correct
	statement about availability of ftcr in the presence of HarfBuzz.
	Recommend HarfBuzz.

2020-01-21  Eli Zaretskii  <eliz@gnu.org>

	Avoid leaving artifacts when the system caret is used on w32

	* src/xdisp.c (try_window_reusing_current_matrix, try_window_id):
	* src/dispnew.c (scrolling_window) [HAVE_NTGUI]: If
	w32-use-visible-system-caret is non-nil, disallow scrolling the
	display are in scroll_run_hook.  This avoids copying traces of the
	caret, about which Emacs knows nothing, and thus considers those
	pixels show the default background.  (Bug#39188)
	(gui_update_window_end): Block input only around part of the code,
	as we did before this code was extracted from backend-specific
	implementations.

	* src/w32term.c (w32_update_window_begin, w32_update_window_end):
	Only hide/show the caret when redisplaying the window where the
	caret is shown.

2020-01-21  Eli Zaretskii  <eliz@gnu.org>

	Improve display of temporary echo messages

	* lisp/minibuffer.el (set-minibuffer-message): Fix cursor position
	for the temporary display of an echo-area message when minibuffer
	is active.  Ensure the message is visible even if the end of the
	completion candidates presented by the likes of Icomplete mode is
	not visible due to its length, under resize-mini-windows = nil.
	(Bug#38457)

2020-01-20  Juri Linkov  <juri@linkov.net>

	* lisp/menu-bar.el: Remove desktop-save-mode from release branch (bug#37594)

2020-01-20  Juri Linkov  <juri@linkov.net>

	Allow optional truncation of tab names in tab-bar and tab-line (bug#38693)

	* lisp/tab-line.el (tab-line-tab-name-truncated-max): New defcustom.
	(tab-line-tab-name-truncated-buffer): Use tab-line-tab-name-truncated-max
	consistently with similar options in tab-bar.el.
	(tab-line-tabs-limit): Remove variable.
	(tab-line-tabs-window-buffers): Remove use of tab-line-tabs-limit
	that was an experimental feature before horizontal scrolling was implemented.
	(tab-line-close-tab-function): Rename from tab-line-close-tab-action
	and allow a customizaed function as option.
	(tab-line-close-tab): Call function if tab-line-close-tab-function
	is customized to a function.

	* lisp/tab-bar.el (tab-bar-tab-name-function): Add option
	tab-bar-tab-name-truncated.
	(tab-bar-tab-name-truncated-max): New defcustom.
	(tab-bar-tab-name-truncated-ellipsis): New variable.
	(tab-bar-tab-name-truncated): New function.

2020-01-20  Juri Linkov  <juri@linkov.net>

	Small fixes in documentation.

	* doc/emacs/dired.texi (Operating on Files): Fix name of dired-vc-rename-file.

	* doc/emacs/fixit.texi (Undo): Update new values of undo limits
	doubled in bug#31104.

2020-01-20  Robert Pluim  <rpluim@gmail.com>

	Improve explanation of available font backends under X

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	* doc/emacs/frames.texi (Font and Color Parameters): Clarify that you can't
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	have HarfBuzz and non-HarfBuzz at the same time for xft and cairo
	font backends.

2020-01-20  Pip Cet  <pipcet@gmail.com>

	Clear output data pointer on NS

	* src/nsterm.m (ns_free_frame_resources): Clear the output data
	pointer to prevent attempting to reuse freed resources (Bug#38748).

2020-01-20  Michael Albinus  <michael.albinus@gmx.de>

	* admin/release-process: Adapt bug numbers for release critical bugs.

	Mention debbugs-gnu-emacs-release-blocking-reports.

2020-01-20  Mattias Engdegård  <mattiase@acm.org>

	Fix shell-tests failures

	* test/lisp/shell-tests.el (shell-tests-completion-before-semi):
	Go back to actually testing completion before semicolon.
	(shell-tests-completion-after-semi): Test completion after semicolon,
	correctly (bug#39075).

2020-01-20  Mattias Engdegård  <mattiase@acm.org>

	* test/lisp/simple-tests.el: Full path to Emacs binary (bug#39067).

2020-01-19  Juri Linkov  <juri@linkov.net>

	* lisp/tab-line.el (tab-line-auto-hscroll): Fix for long tab names.

	Check for nil value returned by previous-single-property-change that
	happens when tab name is longer than window width.

2020-01-19  Juri Linkov  <juri@linkov.net>

	* lisp/menu-bar.el (menu-bar-options-menu): Add desktop-save-mode (bug#37594)

2020-01-19  Tino Calancha  <tino.calancha@gmail.com>

	Fix shell-command-dont-erase-buffer feature

	* lisp/simple.el (shell-command-dont-erase-buffer):
	The default, nil, is backward compatible, i.e. it erases the buffer
	only if the output buffer is not the current one; the new value 'erase
	always erases the output buffer.
	Update docstring.

	(shell-command-save-pos-or-erase):
	Add optional arg output-to-current-buffer.
	Rename it so that it's not internal.  All callers updated.

	(shell-command-set-point-after-cmd): Rename it so that it's not internal.
	All callers updated.
	Adjust it to cover a side case.

	(shell-command): Adjust logic to match the specification (Bug#39067).
	Enable the feature when the output buffer is the current one.

	(shell-command-on-region): Little tweak to follow
	`shell-command-dont-erase-buffer' specification.

	* test/lisp/simple-tests.el (with-shell-command-dont-erase-buffer):
	Add helper macro.
	(simple-tests-shell-command-39067)
	(simple-tests-shell-command-dont-erase-buffer): Add tests.

	* doc/emacs/misc.texi (Single Shell): Update manual.

	* etc/NEWS (Single shell commands): Announce the change.

2020-01-18  Stefan Kangas  <stefankangas@gmail.com>

	Remove reference to Emacs 19 from FAQ

	* doc/misc/efaq.texi (Emacs ignores X resources): Remove reference to
	Emacs 19.

2020-01-18  Stefan Kangas  <stefankangas@gmail.com>

	Doc fixes in package.el

	* lisp/emacs-lisp/package.el (package-process-define-package)
	(package-generate-description-file): Doc fixes.
	(package-generate-autoloads, package--write-file-no-coding)
	(package--archive-file-exists-p, package-desc-status): Add doc
	strings.

2020-01-18  Eric Abrahamsen  <eric@ericabrahamsen.net>

	Ensure that gnus-summary-attach-article finds the right articles

	* lisp/gnus/gnus-msg.el (gnus-summary-attach-article): Before
	iterating over the articles to attach, first close any open
	article. Using `set-buffer' required `gnus-summary-select-article' to
	re-set the buffer every time, meaning we never got off the original
	article.

	(cherry picked from commit 447bb1313a6abc07776d93ee78cd976ab43856e5)

2020-01-18  Stefan Kangas  <stefankangas@gmail.com>

	Remove some doc references to old Emacs versions

	* doc/misc/efaq.texi (Horizontal scrolling): Remove section
	only relevant to Emacs 21 or older.
	(Repeating commands, Editing MS-DOS files):
	* lisp/progmodes/gdb-mi.el:
	* lisp/woman.el: Doc fix - remove some references to Emacs 20 and older.

2020-01-18  Pieter van Oostrum  <pieter-l@vanoostrum.org>  (tiny change)

	Fix infloop in shell.el

	* test/lisp/shell-tests.el (shell-tests-completion-before-semi):
	Amend the shell.el tests to catch errors such as bug#39057.

	* lisp/shell.el (shell--parse-pcomplete-arguments): Skip the
	semi-colon as well.  This avoids inflooping when a semi-colon is
	typed by the user.  (Bug#39057)

2020-01-17  Amin Bandali  <mab@gnu.org>

	Fix erc-notifications-notify for non-PRIVMSGs, broken in last commit

	* lisp/erc/erc-desktop-notifications.el (erc-notifications-notify):
	Take optional argument `privp', to be non-nil when notifying for a
	PRIVMSG.  This is to work around bug introduced in last commit, as
	`erc-get-buffer' may return nil for non-PRIVMSG cases.
	(erc-notifications-PRIVMSG): Call erc-notifications-notify with
	non-nil `privp', as described above.

2020-01-17  Amin Bandali  <mab@gnu.org>

	Fix the notification action for PRIVMSG in erc-notifications-notify

	* lisp/erc/erc-desktop-notifications.el (erc-notifications-notify):
	explicitly request the buffer for `nick', rather than relying on
	(current-buffer) returning it.  That works fine for the very first
	PRIVMSG sent by `nick', but ERC seems to handle subsequent PRIVMSGs
	differently, where (current-buffer) would return the server buffer
	rather than the existing buffer for PRIVMSGs from `nick'.

2020-01-17  Amin Bandali  <mab@gnu.org>

	ERC: New maintainer.

	* admin/MAINTAINERS: Add entries for Amin Bandali, new maintainer for
	ERC, and interested in maintaining Eshell.
	* lisp/erc/*: New maintainer.

2020-01-17  Dmitry Gutov  <dgutov@yandex.ru>

	Honor tags-case-fold-search during xref identifer completion

	* etc/NEWS: New entry.

	* lisp/progmodes/etags.el (tags-case-fold-search):
	Mark as safe-local.
	(find-tag--completion-ignore-case):
	Extract from tags-completion-at-point-function, find-tag-tag and
	etags--xref-find-definitions.
	(xref-backend-identifier-completion-ignore-case):
	New method. Use it here as well.

	* lisp/progmodes/xref.el
	(xref-backend-identifier-completion-ignore-case): New generic.
	(xref--read-identifier): Use it here.

2020-01-17  Eli Zaretskii  <eliz@gnu.org>

	Fix wording and punctuation of a recent commit

	* lisp/textmodes/ispell.el (ispell-correct-p): Doc fix.
	* lisp/emacs-lisp/checkdoc.el (checkdoc-ispell-init): Fix
	capitalization and punctuation of comments.

2020-01-17  Damien Cassou  <damien@cassou.me>

	Add unattended spell-checking to checkdoc

	This commit makes checkdoc capable of spell-checking even when the
	user isn't using it interactively.  When TAKE-NOTES is non-nil,
	checkdoc will run spell-checking (with ispell) and report spelling
	mistakes.

	Fixes: (bug#38583).

	* lisp/textmodes/ispell.el (ispell-word): Extract part of it to
	`ispell--run-on-word`.
	(ispell--run-on-word): New function, extracted from `ispell-word`.
	(ispell-error-checking-word): New function.
	(ispell-correct-p): New function.  Use `ispell--run-on-word` and
	`ispell-error-checking-word`.
	* lisp/emacs-lisp/checkdoc.el (checkdoc-current-buffer): Pass
	TAKE-NOTES to `checkdoc-start`.
	(checkdoc-continue): Pass TAKE-NOTES to `checkdoc-this-string-valid`.
	(checkdoc-this-string-valid): Add optional argument TAKE-NOTES and
	pass it to `checkdoc-this-string-valid-engine`.
	(checkdoc-this-string-valid-engine): Add optional argument TAKE-NOTES
	and pass it to `checkdoc-ispell-docstring-engine`.
	(checkdoc-ispell-init): Call `ispell-set-spellchecker-params` and
	`ispell-accept-buffer-local-defs`.  These calls are required to
	properly use ispell.  The problem went unnoticed until now because
	checkdoc was only using ispell through the high-level command
	`ispell-word` which takes care of all the initialization for the user.
	(checkdoc-ispell-docstring-engine): Add optional argument TAKE-NOTES
	to force reporting of spell-checking errors.  Throw error
	when (checkdoc-ispell-init) fails configuring ispell.  Replace a
	few (if cond nil body) with (unless cond body). Replace (let ((var
	nil))) with (let (var)).  Replace (if (not (eq checkdoc-autofix-flag
	'never)) body) with just body because `checkdoc-autofix-flag` is
	checked at the beginning of the function.

	(cherry picked from commit 25adbc4a5ecc3e16625c0171607e3153bbdf7ab1)

2020-01-17  Lin Sun  <lin.sun@zoom.us>

	Fix the error message from makefile-move-to-macro

	* lisp/cedet/ede/makefile-edit.el (makefile-macro-file-list):
	regexp-quote the param in makefile-move-to-macro (Bug#39094).

	(cherry picked from commit a36495da1ec1419998c17fd64fb7439eaf940f36)

2020-01-16  Stefan Kangas  <stefankangas@gmail.com>

	Document feature requests in the Emacs manual

	* doc/emacs/trouble.texi (Contributing): Document how to send feature
	requests.  (Bug20697)

2020-01-16  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp/minibuffer.el (read-file-name-default): Fix bug#39057

2020-01-16  Robert Pluim  <rpluim@gmail.com>

	Make emacs prefer an existing ~/.emacs.d to an existing XDG location

	* doc/emacs/custom.texi (Find Init): Update description of how Emacs
	finds its init file directory and the interaction with
	$XDG_CONFIG_HOME
	(Early Init File): Correct XDG location of early-init.el

	* etc/NEWS: Update description to make it clear the ~/.emacs.d is
	preferred, even if the XDG location exists.

	* lisp/startup.el: Prefer ~/.emacs.d even if the XDG location exists.

	* lib-src/emacsclient.c (open_config): Prefer home directory the XDG
	location.

2020-01-16  Robert Pluim  <rpluim@gmail.com>

	Describe --with-cairo non-support for bitmapped fonts.

	* etc/NEWS: Mention Pango's removal of support for bitmapped fonts.

2020-01-16  Robert Pluim  <rpluim@gmail.com>

	Mention GTK font chooser changes in NEWS

	* etc/NEWS: Mention GTK font chooser changes.

2020-01-15  Glenn Morris  <rgm@gnu.org>

	f90: handle F2008 module function

	* lisp/progmodes/f90.el (f90-font-lock-keywords-1)
	(f90-looking-at-program-block-start):
	Handle F2008 "module function" and subroutine.  (Bug#38415)
	* test/lisp/progmodes/f90-tests.el (f90-test-bug38415): New test.

2020-01-15  Juri Linkov  <juri@linkov.net>

	Move shell-related menu items to "Shell Commands" submenu (bug#37594)

	* lisp/menu-bar.el (menu-bar-shell-commands-menu): New variable.
	(menu-bar-tools-menu): Move shell-related menu items to
	'menu-bar-shell-commands-menu' and add menu items for
	'async-shell-command' and 'shell'.

2020-01-15  Stefan Kangas  <stefankangas@gmail.com>

	* admin/notes/font-backend: Remove outdated file. (Bug#34663)

2020-01-15  Stefan Kangas  <stefankangas@gmail.com>

	Declare the ftx font backend driver obsolete

	* etc/NEWS: Document that the ftx font driver is now
	obsolete and will be removed in Emacs 28.  (Bug#34663)

2020-01-15  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>

	Fix build failure with --with-cairo --without-png

	* src/image.c: Don't enable PNG section only by USE_CAIRO.

2020-01-14  Stefan Kangas  <stefankangas@gmail.com>

	Add new node "Package Statuses" to manual

	* doc/emacs/emacs.texi (Top):
	* doc/emacs/package.texi (Package Menu): New node "Package
	Statuses".  (Bug#29420)

2020-01-14  Juri Linkov  <juri@linkov.net>

	* lisp/isearch.el: Fix corner cases of isearch-lazy-count.

	* lisp/isearch.el (isearch-mode): Reset isearch-lazy-count-current
	and isearch-lazy-count-total to nil, so when isearch-mode is started,
	there should be no counts from previous Isearch.
	(isearch-lazy-highlight-new-loop): Call isearch-message after resetting
	lazy-count variables only when isearch-mode is started.  This avoids
	the problem of inappropriate calls of isearch-message-function
	when query-replace in the minibuffer performs lazy-highlighting that
	used to call minibuffer-history-isearch-message unnecessarily.

2020-01-14  Robert Pluim  <rpluim@gmail.com>

	Document spacing issues with Xft for some fonts

	* etc/PROBLEMS: Document issues with Xft and some recent fonts (Bug#39082).

2020-01-13  Mattias Engdegård  <mattiase@acm.org>

	Always use lexical-binding in lisp-interaction-mode (bug#38835)

	* lisp/progmodes/elisp-mode.el (lisp-interaction-mode):
	Set lexical-binding.
	* lisp/startup.el (command-line, startup--get-buffer-create-scratch):
	Don't set lexical-binding here.
	* doc/lispref/variables.texi:
	* etc/NEWS:
	Make it clear that lisp-interaction-mode uses lexical-binding.

2020-01-13  Robert Pluim  <rpluim@gmail.com>

	vc-