Fix undefined behavior when fetching glyphs from the display vector.
You can trigger this rather obscure bug by enabling selective display
if the second glyph in its display vector has an invalid face. For
example, evaluate
Eli Zaretskii [Mon, 9 Nov 2020 15:22:25 +0000 (17:22 +0200)]
Avoid breaking Arabic shaping in 'window-text-pixel-size'
* src/xdisp.c (CHAR_COMPOSED_P): If the bidi_p flag is not set,
pass -1 to composition_reseat_it, so that the shaping engine will
figure out the directionality of the text. This is important,
e.g., when using move_it_* functions in some context that is not
redisplay, such as 'window-text-pixel-size'. (Bug#44521)
Kazuhiro Ito [Thu, 5 Nov 2020 10:48:08 +0000 (19:48 +0900)]
Fix 'uudecode-decode-region-internal' in multibyte buffers
* lisp/mail/uudecode.el (uudecode-decode-region-internal): Fix
inserting the decoded string into a multibyte buffer. Optimize by
working with characters, not strings. (Bug#44411)
Martin Rudalics [Sat, 7 Nov 2020 08:20:14 +0000 (09:20 +0100)]
Split windows evenly when 'min-margins' parameter was set (Bug#44483)
* lisp/window.el (split-window): Make new window inherit any
'min-margins' parameter from WINDOW so that horizontal splits
reliably produce windows of same width (Bug#44483).
Stefan Kangas [Tue, 3 Nov 2020 00:35:01 +0000 (01:35 +0100)]
Backport: Fix exiting the finder-commentary buffer
Do not merge to master.
* lisp/finder.el (finder-exit): Fix exiting the finder-commentary
buffer. (Bug#44384)
(finder-buffer): New defconst.
(finder-list-keywords): Use above new defconst.
Eli Zaretskii [Wed, 4 Nov 2020 20:10:06 +0000 (22:10 +0200)]
Prevent redisplay from moving point behind user's back
* src/bidi.c (bidi_at_paragraph_end, bidi_find_paragraph_start):
Bind inhibit-quit to a non-nil value around calls to
fast_looking_at, to prevent breaking out of redisplay_window,
which temporarily moves point in buffers shown in non-selected
windows. (Bug#44448)
Mauro Aranda [Mon, 2 Nov 2020 12:33:55 +0000 (09:33 -0300)]
Document that the :match function for a widget takes an external value
* doc/misc/widget.texi (Basic Types): Document what an external value
is. Document that a :match function expects the value to be in the
external format. (Bug#8717)
The old texinfo domain seems to no longer be controlled by the GNU
project, starting at least as early as 2012. See also:
https://web.archive.org/web/20120410044746/http://www.texinfo.org/
Glenn Morris [Sat, 31 Oct 2020 02:20:24 +0000 (19:20 -0700)]
Improve reproducibility of generated -pkg.el files
* lisp/emacs-lisp/package.el (package-generate-description-file):
Don't include the full name of the source file in the header,
since that varies non-reproducibly according to the build directory.
https://bugs.debian.org/972861
Note that elpa.gnu.org's admin/archive-contents.el does this by hand
and already only includes the nondirectory part.
Ken Brown [Thu, 29 Oct 2020 12:45:29 +0000 (08:45 -0400)]
Fix failure of 'emacs --daemon' on Cygwin
* src/emacs.c (DAEMON_MUST_EXEC): Define unconditionally on
Cygwin, not just if HAVE_NTGUI is defined. This fixes the failure
of 'emacs --daemon' to start on the non-w32 Cygwin builds.
(Bug#44285)
Alan Mackenzie [Wed, 28 Oct 2020 10:22:37 +0000 (10:22 +0000)]
CC Mode: Only recognize foo (*bar) as a function pointer when followed by (
* lisp/progmodes/cc-engine.el (c-forward-over-decl-or-cast-1): (after CASE 2)
test variables got-suffix-after-parens and at-decl-end before invoking
c-fdoc-shift-type-backward.
Don't skip empty lines when fitting mini frame to buffer (Bug#44080)
* lisp/window.el (fit-mini-frame-to-buffer,
window--resize-mini-frame, fit-frame-to-buffer,
fit-frame-to-buffer-1): By default, fit a mini frame without skipping its
buffer's leading or trailing empty lines.
* src/frame.c (resize-mini-frames): Update doc-string.
* lisp/cus-start.el (resize-mini-frames): Update for customize.
* doc/lispref/minibuf.texi (resize-mini-frames): Update description.
Eli Zaretskii [Mon, 26 Oct 2020 16:01:13 +0000 (18:01 +0200)]
Improve documentation of display-fill-column-indicator
* lisp/display-fill-column-indicator.el
(display-fill-column-indicator-mode): Mention the globalized
version in the doc string.
* doc/emacs/display.texi (Displaying Boundaries): Improve and
clarify the documentation of display-fill-column-indicator.
Suggest using the minor mode as the primary means for turning the
feature on.
Paul Eggert [Sat, 24 Oct 2020 22:34:12 +0000 (15:34 -0700)]
Use WebKit sandboxing
* src/xwidget.c (Fmake_xwidget): Enable sandboxing if WebKit 2.26
or later. Do this early, as required for sandboxing (Bug#43071). Co-authored-by: Qiantan Hong <qhong@mit.edu>
Copyright-paperwork-exempt: yes
Eli Zaretskii [Wed, 21 Oct 2020 15:32:51 +0000 (18:32 +0300)]
Avoid rare crashes while producing line numbers
* src/xdisp.c (maybe_produce_line_number): Prevent freeing of
realized faces for as long as we are using lnum_face_id and
current_lnum_face_id for producing glyphs. (Bug#44111)
Eli Zaretskii [Fri, 16 Oct 2020 07:02:50 +0000 (10:02 +0300)]
Fix posn-at-x-y in builds --without-x
* src/keyboard.c (make_lispy_position): Don't exclude the
window_or_frame = frame case from TTY-only builds. Reported by
Jared Finder <jared@finder.org>.
* doc/lispref/commands.texi (Click Events): Document the format of
POSITION in click events on the frame's internal border.
Gregory Heytings [Sun, 11 Oct 2020 14:36:44 +0000 (17:36 +0300)]
Fix 'message' when there's active minibuffer on another frame
* lisp/minibuffer.el (set-minibuffer-message): Don't reuse the
active minibuffer for displaying messages unless the active
minibuffer is on the same frame as the selected window.
* lisp/ebuff-menu.el (electric-buffer-list): Ensure that point is
restored, which isn't always the case if
global-display-line-numbers-mode (bug#43755). This enables
selecting buffers again.
Robert Pluim [Fri, 2 Oct 2020 08:47:06 +0000 (10:47 +0200)]
Don't error if no GPG signing key configured
* lisp/gnus/mml-sec.el (mml-secure-epg-sign): Partially revert
"Make mml-secure-epg-sign bug out if we can't find an identity".
It causes signing to fail for people who have not set up
mml-secure-{smime,openpgp}-sign-with-sender, which is a regression
from Emacs-26 (Bug#40118). In such a situation gpg will use its
default key.
Do not merge to master. On master Emacs will query the user.
* lisp/progmodes/sql.el (sql-add-product): Re-correct argument
spec. Previous change was due to my mistake; I have
resolved back to the prior behavior (Bug#39960).
* test/lisp/progmodes/sql-tests.el (sql-test-add-product): Added
test to insure I don't make the same mistake again.
Gemini Lasswell [Thu, 1 Oct 2020 17:59:58 +0000 (19:59 +0200)]
Restore some public debugging functions removed in Emacs 27
* lisp/emacs-lisp/backtrace.el (backtrace--to-string): New function.
(backtrace-to-string): Use it. Fix whitespace (bug#40728).
* lisp/emacs-lisp/debug.el (debugger-insert-backtrace): New function.
Mark it as obsolete.
(debugger-toggle-locals, debug-help-follow): New aliases.
Eli Zaretskii [Sun, 27 Sep 2020 06:09:27 +0000 (09:09 +0300)]
Minor copyedits in the Emacs user manual
* doc/emacs/emacs.texi (Top): Remove "real-time" from the Emacs
description; add "advanced", to be consistent with what we say in
the Introduction section. (Bug#43633)
Eli Zaretskii [Sat, 26 Sep 2020 08:50:15 +0000 (11:50 +0300)]
Enable "Continue Tags Search" menu item only when it can be used
* lisp/menu-bar.el (menu-bar-search-menu) <tags-continue>: Enable
only when there was a previous tags search. (Bug#43569)
(menu-bar-replace-menu) <tags-repl-continue>: Enable only when
there was a previous tags-replace.
Paul Eggert [Sat, 26 Sep 2020 07:31:17 +0000 (00:31 -0700)]
Fix soap-client URL
* lisp/net/soap-client.el (soap-create-envelope):
Fix URL that I broke in 2019-09-23T06:53:30Z!eggert@cs.ucla.edu.
Problem reported by Thomas Fitzsimmons.
Paul Eggert [Thu, 9 Jul 2020 23:35:48 +0000 (16:35 -0700)]
Fix out-of-source ‘make check’ emacs-module-tests
Problem reported by Koki Fukuda in:
https://lists.gnu.org/r/emacs-devel/2020-07/msg00169.html
* test/Makefile.in (MODULE_CFLAGS):
Include from the same directories included from in ../src.
* test/src/emacs-module-tests.el (module/describe-function-1):
Strip path to source directory.
Eli Zaretskii [Fri, 25 Sep 2020 08:55:51 +0000 (11:55 +0300)]
Avoid infinite recursion with 'relative' line numbers display
* src/xdisp.c (display_count_lines_visually): Bind
'display-line-numbers' to 'relative' around 'start_display' as
well, since that can invoke 'move_it_to' internally, thus
causing infinite recursion. (Bug#43589)
Eli Zaretskii [Fri, 18 Sep 2020 19:50:36 +0000 (22:50 +0300)]
Improve documentation of 'max-mini-window-height'
* src/xdisp.c (syms_of_xdisp):
* doc/lispref/minibuf.texi (Minibuffer Windows): More accurate
wording in the documentation of 'max-mini-window-height', to
clarify the meaning of an integer value.
Daniel Martín [Fri, 18 Sep 2020 11:36:47 +0000 (13:36 +0200)]
Use modern constant names for the NS pasteboard
Use the same pasteboard constant names defined in
ns_drag_types. (Bug#43470).
* src/nsterm.m: Rename NSURLPboardType to NSPasteboardTypeURL,
NSStringPboardType to NSPasteboardTypeString, and
NSTabularTextPboardType to NSPasteboardTypeTabularText