Accept plists when serializing and parsing JSON

* doc/lispref/text.texi (Parsing JSON): Mention plist support.

* src/json.c (lisp_to_json_toplevel_1): Serialize plists to json.
(Fjson_serialize): Mention plists in docstring.
(enum json_object_type): Add json_object_plist
(json_to_lisp): Parse JSON into plists.
(json_parse_object_type): Consider plists.
(Fjson_parse_string): Mention plists in docstring.
(syms_of_json): New Qplist sym_of_json

* test/src/json-tests.el (json-serialize/object)
(json-parse-string/object): New plist tests.

Add NS style text scale keybindings

* lisp/term/ns-win.el: Add super-based keybindings for adjusting text
zoom.

Extend file-name-non-special

* lisp/files.el (insert-file-contents-literally):
Bind `inhibit-file-name-handlers' the default way.
(file-name-non-special): Rework, mainly for operations with two
file name arguments.
(file-name-unquote-non-special): New defsubst.
(file-name-unquote): Use it.

* test/lisp/files-tests.el (files-test-bug-18141): Skip if needed.
(files-tests--with-temp-non-special): Add docstring.  Delete also
`non-special-name' if the file/directory exists.
(files-tests--special-file-name-extension)
(files-tests--special-file-name-regexp): New defconst.
(files-tests--special-file-name-handler, files-tests--new-name):
New defuns.
(files-tests--with-temp-non-special-and-file-name-handler): New macro.
(files-tests-file-name-non-special-access-file)
(files-tests-file-name-non-special-add-name-to-file)
(files-tests-file-name-non-special-byte-compiler-base-file-name)
(files-tests-file-name-non-special-copy-directory)
(files-tests-file-name-non-special-copy-file)
(files-tests-file-name-non-special-delete-directory)
(files-tests-file-name-non-special-delete-file)
(files-tests-file-name-non-special-diff-latest-backup-file)
(files-tests-file-name-non-special-directory-file-name)
(files-tests-file-name-non-special-directory-files)
(files-tests-file-name-non-special-directory-files-and-attributes)
(files-tests-file-name-non-special-dired-compress-handler)
(files-tests-file-name-non-special-dired-uncache)
(files-tests-file-name-non-special-expand-file-name)
(files-tests-file-name-non-special-file-accessible-directory-p)
(files-tests-file-name-non-special-file-acl)
(files-tests-file-name-non-special-file-attributes)
(files-tests-file-name-non-special-file-directory-p)
(files-tests-file-name-non-special-file-equal-p)
(files-tests-file-name-non-special-file-executable-p)
(files-tests-file-name-non-special-file-exists-p)
(files-tests-file-name-non-special-file-in-directory-p)
(files-tests-file-name-non-special-file-local-copy)
(files-tests-file-name-non-special-file-modes)
(files-tests-file-name-non-special-file-name-all-completions)
(files-tests-file-name-non-special-file-name-as-directory)
(files-tests-file-name-non-special-file-name-case-insensitive-p)
(files-tests-file-name-non-special-file-name-completion)
(files-tests-file-name-non-special-file-name-directory)
(files-tests-file-name-non-special-file-name-nondirectory)
(files-tests-file-name-non-special-file-name-sans-versions)
(files-tests-file-name-non-special-file-newer-than-file-p)
(files-tests-file-name-non-special-notify-handlers)
(files-tests-file-name-non-special-file-ownership-preserved-p)
(files-tests-file-name-non-special-file-readable-p)
(files-tests-file-name-non-special-file-regular-p)
(files-tests-file-name-non-special-file-remote-p)
(files-tests-file-name-non-special-file-selinux-context)
(files-tests-file-name-non-special-file-symlink-p)
(files-tests-file-name-non-special-file-truename)
(files-tests-file-name-non-special-file-writable-p)
(files-tests-file-name-non-special-find-backup-file-name)
(files-tests-file-name-non-special-get-file-buffer)
(files-tests-file-name-non-special-insert-directory)
(files-tests-file-name-non-special-insert-file-contents)
(files-tests-file-name-non-special-load)
(files-tests-file-name-non-special-make-auto-save-file-name)
(files-tests-file-name-non-special-make-directory)
(files-tests-file-name-non-special-make-directory-internal)
(files-tests-file-name-non-special-make-symbolic-link)
(files-tests-file-name-non-special-rename-file)
(files-tests-file-name-non-special-set-file-acl)
(files-tests-file-name-non-special-set-file-modes)
(files-tests-file-name-non-special-set-file-selinux-context)
(files-tests-file-name-non-special-set-file-times)
(files-tests-file-name-non-special-set-visited-file-modtime)
(files-tests-file-name-non-special-shell-command)
(files-tests-file-name-non-special-start-file-process)
(files-tests-file-name-non-special-substitute-in-file-name)
(files-tests-file-name-non-special-temporary-file-directory)
(files-tests-file-name-non-special-unhandled-file-name-directory)
(files-tests-file-name-non-special-vc-registered)
(files-tests-file-name-non-special-write-region): Extends tests to
quoted file names, which would require a file name handler if unquoted.
(files-test-no-file-write-contents): Make test more robust.

* test/lisp/net/tramp-tests.el (tramp-test21-file-links): Adapt test.
(tramp--test-emacs25-p): New defun.
(tramp-test34-vc-registered): Use it.

Improve buffer naming in sql.el (Bug#31446)

Merge from origin/emacs-26

4cfe531 (origin/emacs-26) Improve ELisp documentation of 'clone-indir...
9089b02 Improve documentation of 'inhibit-message'
6107e12 Improve documentation of comment styles
fb45125 Documentation improvements in newcomment.el
641c94c Imp[rove documentation of 'with-silent-modifications'

; Merge from origin/emacs-26

The following commits were skipped:

6e0ff4c Fix decoding of directories when "~" includes non-ASCII chars
35c1ab1 Don't remove highlight of misspelled word on pdict save
aac541e Fix some problems in the Cairo build
e96245a Avoid infloops in font_open_entity
3a06e72 Fix encoding of characters when using GB18030 fonts
7782550 Fix C-p and C-n when wrap-prefix is too wide
9804482 Avoid redisplay problems with too wide wrap-prefix
5ee9ccf Fix 'posn-at-point' when line numbers are displayed
c4db766 Another followup to fixing 'window-text-pixel-width'
a6cf7be Fix mouse-set-point when line numbers are displayed
ae78b14 * src/xdisp.c (Fwindow_text_pixel_size): Fix last change.
f1f12d8 Fix 'window-text-pixel-size' when display properties are around
8b2b4b5 Fix display of TABs in hscrolled windows with line numbers
de69d28 Fix wait_reading_process_output wait_proc hang

Merge from origin/emacs-26

76f692e Merge branch 'emacs-26' of git.savannah.gnu.org:/srv/git/emac...

; Merge from origin/emacs-26

The following commit was skipped:

ddd1b95 Fix posn-at-point in Flycheck buffers

Merge from origin/emacs-26

90bea37 ; * etc/PROBLEMS: Fix fvwm version number in last commit
af82d1f * etc/PROBLEMS: Document stickyness problem with FVWM (Bug#31...
4a3aed2 Update Emacs Lisp Intro to match current behavior
21f2247 Merge branch 'emacs-26' of git.savannah.gnu.org:/srv/git/emac...
3257085 Fix previous commit
6d23525 Fix typos in several manuals (Bug#31610)
9188291 Add detailed documentation about lock files
e5471b2 Add commentary for subtle aspect of frame.el

Conflicts:
doc/lispintro/emacs-lisp-intro.texi

; Merge from origin/emacs-26

The following commit was skipped:

61c8434 ; Auto-commit of loaddefs files.

Merge from origin/emacs-26

ca3f0a8 ; * etc/NEWS: Belated announcement of 2 changes made in Emacs...
99f92da Improve documentation of 'directory-files-and-attributes'
df8649a * lisp/gnus/message.el (message-remove-header): Don't remove ...
b682a7e ; * etc/NEWS: Add headings for Emacs 26.2
aa175a4 Adapt hexl-mode to native line-number display
b8e7749 Fix example in Tramp manual
f212fe5 Handle case where Xft is found but not XRender
186280f * doc/misc/tramp.texi (Frequently Asked Questions): Adapt zsh...
24ba633 Improve read-multiple-choice docstring (Bug#31628)

Conflicts:
etc/NEWS
src/dired.c

Improve ELisp documentation of 'clone-indirect-buffer'

* doc/lispref/buffers.texi (Indirect Buffers): Be more explicit
about the value of DISPLAY-FLAG in interactive usage.  (Bug#31648)

Improve documentation of 'inhibit-message'

* src/xdisp.c (syms_of_xdisp) <inhibit-message>: Warn against
setting it non-nil globally.  (Bug#31627)

Improve documentation of comment styles

* doc/lispref/syntax.texi (Syntax Flags): Define the "a" style.
(Bug#31624)

Documentation improvements in newcomment.el

* lisp/newcomment.el (uncomment-region)
(uncomment-region-default): Doc fixes.  (Bug#31615)

Imp[rove documentation of 'with-silent-modifications'

* doc/lispref/buffers.texi (Buffer Modification): Document
'with-silent-modifications'.  (Bug#31613)
* doc/lispref/text.texi (Changing Properties): Add a
cross-reference to "Buffer Modification".  Improve wording.

Un-obsolete 'string-to-unibyte'

* lisp/subr.el (string-to-unibyte): No longer obsolete.  See the
emacs-devel discussion around this message:
http://lists.gnu.org/archive/html/emacs-devel/2018-05/msg00656.html.

* etc/NEWS: Announce the change.

Fix decoding of directories when "~" includes non-ASCII chars

* src/fileio.c (Fexpand_file_name): Don't build multibyte strings
from unibyte non-ASCII strings when NAME and DEFAULT_DIRECTORY
have different multibyteness, as this adds bytes to the byte
sequence, and in some situations, e.g., when the home directory
includes non-ASCII characters, can fail file APIs.  (Bug#30755)

* lisp/startup.el (normal-top-level): Make sure default-directory
is set to a multibyte string when decoded on MS-Windows.

(cherry picked from commit 3aab8626ba5080bb04d0fdae52d99c850a842a52)

Don't remove highlight of misspelled word on pdict save

* lisp/textmodes/ispell.el (ispell-pdict-save): Don't restart
flyspell-mode, as bug#11963, which this was supposed to fix, is
fixed better by ispell-command-loop, when the user types 'i' or
'a'.  Restarting Flyspell mode when the personal dictionary is
saved caused bug#31372 as side effect.
(ispell-command-loop): Test 'flyspell-mode', not whether
flyspell-unhighlight-at is fboundp, to determine whether Flyspell
mode is turned on in the current buffer.
(flyspell-unhighlight-at): Add declare-function form for it.

(cherry picked from commit 91e582a31ada28fab5ae55bdbf959a9d30796587)

Fix some problems in the Cairo build

* src/xterm.c (x_begin_cr_clip): Create image surface.
(x_update_end) [USE_CAIRO]: Remove GTK3-specific code.
(x_scroll_run) [USE_CAIRO]: Implement scrolling.
* src/image.c (lookup_rgb_color) [USE_CAIRO]: Support Cairo.
(jpeg_load_body) [USE_CAIRO]: Support Cairo.  Use USE_CAIRO
instead of CAIRO for #ifdef's.
(imagemagick_load_image) [USE_CAIRO]: Support Cairo.
(Bug#31288)

(cherry picked from commit 2d0eff42b8f1122e00f948759ed01a3be1a8c3fc)

Avoid infloops in font_open_entity

* src/font.c (font_open_entity): Fail after 15 iterations through
the loop that looks for a font whose average_width and height are
both positive.  This avoids infinite loops for fonts that, e.g.,
report average_width of zero for any possible size we try.
(Bug#31316)

(cherry picked from commit e2879c1f837059335af89022b2a9ac9bc861e96d)

Fix encoding of characters when using GB18030 fonts

* lisp/international/fontset.el (font-encoding-alist): Fix the
GB18030 entry to encode characters correctly when passing them to
the xfont back-end.  (Bug#31315)  See also
http://lists.gnu.org/archive/html/emacs-devel/2008-01/msg00754.html.

(cherry picked from commit bbe2cadc544e63e9378350621887f8fb9bbcc236)

Fix C-p and C-n when wrap-prefix is too wide

* src/xdisp.c (move_it_in_display_line_to): Avoid looping in
previous/next-line when wrap-prefix is set to a too-wide
stretch of whitespace.  (Bug#30432)

(cherry picked from commit 842b3d7412eaed6b2c9f90c3361abb4932ec0b1d)

Avoid redisplay problems with too wide wrap-prefix

* src/xdisp.c (display_line): Avoid looping in redisplay when
wrap-prefix is set to a too-wide stretch of whitespace.
(Bug#30432)

(cherry picked from commit 2a1fe08307402d6217d073f8ab7737750d253dd4)

Fix 'posn-at-point' when line numbers are displayed

* src/xdisp.c (pos_visible_p): For the leftmost glyph, adjust the X
coordinate due to line-number display.  (Bug#30834)

(cherry picked from commit 4a20174d7949028f66b18a92a75d6b74194242a8)

Another followup to fixing 'window-text-pixel-width'

* src/xdisp.c (Fwindow_text_pixel_size): Adjust the return value
when we stop one buffer position short of TO.  (Bug#30746)

(cherry picked from commit 33cba5405c724566673cf023513bfb1faa963bea)

Fix mouse-set-point when line numbers are displayed

* src/xdisp.c (move_it_to): Initialize the line_number_produced_p
flag before iterating on a new line.  (Bug#30818)

(cherry picked from commit 5c585b8b994aad4e6844f8eed80bdfbb396e91bf)

* src/xdisp.c (Fwindow_text_pixel_size): Fix last change.

(cherry picked from commit 06911714ef66ea81380b1eda75a9f7cfbc9e0b65)

Fix 'window-text-pixel-size' when display properties are around

* src/xdisp.c (Fwindow_text_pixel_size): Correct the result when
there's a display property at the  TO position, and the call to
move_it_to overshoots.  (Bug#30746)

(cherry picked from commit 50e2c0fb5180a757d8d533518f68837ffe5909be)

Fix display of TABs in hscrolled windows with line numbers

* src/dispextern.h (struct it): New members tab_offset and
line_number_produced_p.
* src/xdisp.c (display_line): Don't set row->x to a negative value
if line numbers are being displayed.  (Bug#30582)
Reset the line_number_produced_p flag before laying out the glyph
row.
(x_produce_glyphs): Use the line_number_produced_p flag to decide
whether to offset the X coordinate due to line-number display.
Use the tab_offset member to restore the original TAB width for
alignment purposes.
(move_it_in_display_line_to): Don't produce line numbers when moving
in hscrolled window to the left of first_visible_x.
(maybe_produce_line_number): Set the line_number_produced_p flag.
(Bug#30584)
* src/term.c (produce_glyphs): Correct TAB width only when
line_number_produced_p flag is set.

(cherry picked from commit 1ac190553886ff20817d3dd218464e2fc6f9e42a)

Fix wait_reading_process_output wait_proc hang

* src/process.c (read_process_output): Track bytes read from
a process.
(wait_reading_process_output): If called recursively through
timers and/or process filters via accept-process-output, it is
possible that the output of wait_proc has already been read by
one of those recursive calls, leaving the original call hanging
forever if no further output arrives through that fd and no
timeout has been set.  Fix that by using the process read
accounting to keep track of how many bytes have been read and
use that as a condition to break out of the infinite loop and
return to the caller as well as to calculate the proper return
value (if a wait_proc is given that is).

* src/process.h (struct Lisp_Process): Add nbytes_read to track
bytes read from a process.

(cherry picked from commit 4ba32858d61eee16f17b51aca01c15211a0912f8)

Merge branch 'emacs-26' of git.savannah.gnu.org:/srv/git/emacs into emacs-26

Fix posn-at-point in Flycheck buffers

* src/dispnew.c (buffer_posn_from_coords): Improve commentary.

* src/xdisp.c (move_it_in_display_line_to): Don't exit the loop
under truncate-lines if the glyph at TO_CHARPOS was not yet
produced.  This avoids bailing out too early when we are at
TO_CHARPOS, but didn't yet produce glyphs for that buffer
position, because the last call to PRODUCE_GLYPHS at this position
was for an object other than the buffer.  For further details, see
http://lists.gnu.org/archive/html/emacs-devel/2018-01/msg00537.html.

(cherry picked from commit c0154ac7c3423f68d8f3a2e85a756c9759219039)

; * etc/PROBLEMS: Fix fvwm version number in last commit

* etc/PROBLEMS: Document stickyness problem with FVWM (Bug#31650)

Fix column double counting in term.el (Bug#31662)

* lisp/term.el (term-emulate-terminal): Invalidate
`term-current-column' after deleting overwritten text.

Minimally support Flymake in Emacs C sources

The check-syntax target is enabled the use of Flymake's "legacy"
backend, flymake-proc-legacy-flymake in src/*.c.  It works quite well
with C sources.  The green light for this change had already been
given some time ago in

https://lists.gnu.org/archive/html/emacs-devel/2017-10/msg00385.html

* src/Makefile.in (check-syntax): New target.
(.PHONY): Add check-syntax.

Update Emacs Lisp Intro to match current behavior

* doc/lispintro/emacs-lisp-intro.texi (Wrong Type of Argument)
(debug, debug-on-entry, Void Function, Void Variable): Update the
*Backtrace* buffer display to current Emacs.  (Bug#31654)

Merge branch 'emacs-26' of git.savannah.gnu.org:/srv/git/emacs into emacs-26

Fix a typo in emacs-mime.texi (Bug#31610)

Copyright-paperwork-exempt: yes

Fix previous commit

* doc/emacs/files.texi (Interlocking): Two spaces at end of sentence

Fix typos in several manuals (Bug#31610)

Copyright-paperwork-exempt: yes

Add detailed documentation about lock files

* doc/emacs/files.texi (Interlocking): Point user at detailed
file locking description in lisp reference manual.  Add index
entry for '.#' to improve disoverability of information about locking.

* doc/lispref/files.texi (File Locks): Describe in detail what
the form of the lock file is.  Add index entry for '.#' to
improve disoverability of information about locking.

* src/filelock.c (create-lockfiles): Add cross reference to
file locking in user manual and to 'lock-buffer'.  Add string
'.#' to help users find the doc string.

Add commentary for subtle aspect of frame.el

* lisp/frame.el: Explain why we use symbol-function when adding
watchers for certain variables that need to trigger redisplay.

; Auto-commit of loaddefs files.

; Auto-commit of loaddefs files.

; * etc/NEWS: Belated announcement of 2 changes made in Emacs 26.1.

Improve documentation of 'directory-files-and-attributes'

* doc/lispref/files.texi (Contents of Directories): Fix inaccurate
description of the return value of directory-files-and-attributes.

* src/dired.c (Fdirectory_files_and_attributes): Describe the
function's value in more detail.

Obsolete image-jpeg-p

* lisp/image.el (image-jpeg-p): Declare obsolete.

Fdirectory_files_and_attributes doc string clarification

* src/dired.c (Fdirectory_files_and_attributes): Clarify what data
is returned.

Amend c-before-change-check-unbalanced-strings to handle a quote at EOB.

* lisp/progmodes/cc-mode.el (c-before-change-check-unbalanced-strings): Before
going back a sexp from the \n marked with a string-fence syntax-table text
property, check that it is indeed a \n.  If not, simply delete that text
property from the isolated quote, not the quote and the \n which otherwise
delimit an unterminated string.  Should we encounter a double quote marked
with a string-fence syntax-table text property at the end of the last line,
remove that property.

* lisp/gnus/message.el (message-remove-header): Don't remove things
not looking like header (bug#31651).

Work around GCC bug 81401

* src/xterm.c (x_draw_glyphless_glyph_string_foreground):
Make the buffer a byte longer than it needs to be, if
--enable-gcc-warnings.

; * etc/NEWS: Add headings for Emacs 26.2

Adapt hexl-mode to native line-number display

* lisp/hexl.el (hexl-mode-ruler): When display-line-numbers is in
effect, adjust offsets and columns to account for the line-number
display.  (Bug#31595)

bibtex-search-entry: Reuse the window displaying the buffer.

* textmodes/bibtex.el (bibtex-reposition-window): New optional arg
pos.
(bibtex-search-crossref, bibtex-search-entry): Use it.
(bibtex-search-entry): If possible, reuse the window displaying
the buffer that contains the entry found.

bibtex-mark-entry: Display no message.

* textmodes/bibtex.el (bibtex-mark-entry): Display no message.

bibtex-format-entry: Preserve opt-alt if possible.

* textmodes/bibtex.el (bibtex-format-entry):
Preserve opt-alt unless its removal is selected.
(bibtex-parse-entry):  New optional arg keep-opt-alt.

Fix example in Tramp manual

* doc/misc/tramp.texi (Frequently Asked Questions): Fix wording
for the zsh example.

Add Imenu support to CSS mode and its derivatives

* lisp/textmodes/css-mode.el (css--join-nested-selectors)
(css--prev-index-position, css--extract-index-name): New helper
functions for supporting Imenu.
(css-mode): Set `imenu-space-replacement',
`imenu-prev-index-position-function', and
`imenu-extract-index-name-function'.
(css-current-defun-name): Reuse `css--prev-index-position' and
`css--extract-index-name' to support nested selectors.

* test/lisp/textmodes/css-mode-tests.el (css-test-current-defun-name):
Fix character index.
(css-test-join-nested-selectors): New tests for
`css--join-nested-selectors'.

* etc/NEWS: Add news entry.

Handle case where Xft is found but not XRender

* configure.ac (XFT_LIBS): Ensure that HAVE_XFT is no if
XRender is not found.  (Bug#31634)

Allow access to MS-Windows Registry from Lisp programs

* src/w32.c (g_b_init_reg_open_key_ex_w)
(g_b_init_reg_query_value_ex_w)
(g_b_init_expand_environment_strings_w): New init flags.
(globals_of_w32): Initialize them at startup.
(RegOpenKeyExW_Proc, RegQueryValueExW_Proc)
(ExpandEnvironmentStringsW_Proc): New function typedefs.
(reg_open_key_ex_w, reg_query_value_ex_w)
(expand_environment_strings_w): New wrapper function.
(w32_read_registry): New function.
* src/w32fns.c (Fw32_read_registry) [WINDOWSNT]: New primitive.
(syms_of_w32fns) [WINDOWSNT]: Defsubr it.  DEFSYM "HKLM", "HKCU",
etc. root keys.

* etc/NEWS: Mention the new primitive.

* doc/misc/tramp.texi (Frequently Asked Questions): Adapt zsh example.

Improve read-multiple-choice docstring (Bug#31628)

* lisp/emacs-lisp/rmc.el (read-multiple-choice): Improve docstring.

* doc/misc/tramp.texi (All): Use @code instead of @option for user options.

Merge from origin/emacs-26

13963a3a5c * doc/misc/tramp.texi (All): Use @code instead of @option ...
6e5f19ada4 Fix Bug#31605

* doc/misc/tramp.texi (All): Use @code instead of @option for user options.

Fix Bug#31605

* doc/misc/tramp.texi (All): Add @vindex entries for
environment variables.
(Remote shell setup): New items `tramp-terminal-type' and
"Determining a Tramp session".
(Frequently Asked Questions): Adapt zsh example.  (Bug#31605)

; Merge from origin/emacs-26

The following commit was skipped:

e8912d5be9 Sync with Tramp 2.3.4-pre

Merge from origin/emacs-26

9a7a2e919a ; ChangeLog.3: Remove stray phrase.

; Merge from origin/emacs-26

The following commit was skipped:

038063651e Bump Emacs version to 26.1.50

Merge from origin/emacs-26

9d6a3ac73a Mention pcase as a fifth conditional form
567cb9046d Overhaul pcase documentation
4d7e54acff Use EXPVAL in docstrings of patterns defined using pcase-d...
7e8227ed68 Introduce EXPVAL for pcase, pcase-defmacro docstrings
e6de5b3d51 Ensure pcase doc shows `QPAT first among extensions

Sync with Tramp 2.3.4-pre

* doc/misc/trampver.texi: Change version to "2.3.4-pre

* lisp/net/tramp.el (tramp-mode, tramp-verbose)
(tramp-backup-directory-alist, tramp-auto-save-directory)
(tramp-encoding-shell, tramp-encoding-command-switch)
(tramp-encoding-command-interactive, tramp-default-method)
(tramp-default-method-alist, tramp-default-user)
(tramp-default-user-alist, tramp-default-host)
(tramp-default-host-alist, tramp-default-proxies-alist)
(tramp-save-ad-hoc-proxies, tramp-restricted-shell-hosts-alist)
(tramp-local-end-of-line, tramp-rsh-end-of-line)
(tramp-login-prompt-regexp, tramp-shell-prompt-pattern)
(tramp-password-prompt-regexp, tramp-wrong-passwd-regexp)
(tramp-yesno-prompt-regexp, tramp-yn-prompt-regexp)
(tramp-terminal-prompt-regexp)
(tramp-operation-not-permitted-regexp, tramp-copy-failed-regexp)
(tramp-process-alive-regexp, tramp-chunksize)
(tramp-process-connection-type, tramp-connection-timeout)
(tramp-connection-min-time-diff)
(tramp-completion-reread-directory-timeout):
* lisp/net/tramp-adb.el (tramp-adb-program)
(tramp-adb-connect-if-not-connected, tramp-adb-prompt):
* lisp/net/tramp-cache.el (tramp-connection-properties)
(tramp-persistency-file-name):
* lisp/net/tramp-gvfs.el (tramp-gvfs-methods)
(tramp-gvfs-zeroconf-domain, tramp-bluez-discover-devices-timeout):
* lisp/net/tramp-sh.el (tramp-inline-compress-start-size)
(tramp-copy-size-limit, tramp-terminal-type)
(tramp-histfile-override, tramp-use-ssh-controlmaster-options)
(tramp-remote-path, tramp-remote-process-environment)
(tramp-sh-extra-args):
* lisp/net/tramp-smb.el (tramp-smb-program, tramp-smb-acl-program)
(tramp-smb-conf, tramp-smb-winexe-program)
(tramp-smb-winexe-shell-command)
(tramp-smb-winexe-shell-command-switch):
Dont't require 'tramp.  (Bug#31558)

* lisp/net/tramp.el (tramp-accept-process-output):
* lisp/net/tramp-adb.el (tramp-adb-handle-start-file-process):
* lisp/net/tramp-sh.el (tramp-do-copy-or-rename-file-out-of-band)
(tramp-sh-handle-start-file-process):
* lisp/net/tramp-smb.el (tramp-smb-handle-copy-directory)
(tramp-smb-handle-file-acl, tramp-smb-handle-process-file)
(tramp-smb-handle-set-file-acl)
(tramp-smb-handle-start-file-process): Suppress timers.

* lisp/net/tramp-adb.el (tramp-adb-handle-write-region):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-write-region):
* lisp/net/tramp-sh.el (tramp-sh-handle-write-region):
* lisp/net/tramp-smb.el (tramp-smb-handle-write-region):
Write proper message.

* lisp/net/tramp-cmds.el (tramp-change-syntax):
Use `customize-set-variable'.

* lisp/net/tramp-sh.el (tramp-open-connection-setup-interactive-shell):
Ensure proper EOL handling for Darwin.
(tramp-find-inline-compress): Improve command quoting for w32.
Reported by Chris Zheng <chriszheng99@gmail.com>.
(tramp-open-connection-setup-interactive-shell): Wrap both echo
calls in parentheses, in order to avoid double prompt.

* lisp/net/tramp-smb.el (tramp-smb-errors):
Add "NT_STATUS_RESOURCE_NAME_NOT_FOUND".

* lisp/net/tramp.el (tramp-default-user-alist)
(tramp-default-host-alist): Fix docstring.
(tramp-dissect-file-name): Adapt docstring.  (Bug#30904)
(tramp-make-tramp-file-name): Check, that method is
not empty.  (Bug#30038)
(tramp-message-show-message): Change default.

* lisp/net/trampver.el: Change version to "2.3.4-pre".

* test/lisp/net/tramp-tests.el (ert-x): Require it.
(tramp-test10-write-region): Extend test.
(tramp--test-emacs27-p, tramp--test-windows-nt): New defuns.
(tramp-test11-copy-file, tramp-test12-rename-file)
(tramp-test21-file-links, tramp-test24-file-acl)
(tramp-test25-file-selinux, tramp--test-check-files): Use them.
(tramp-test21-file-links): Do not call `make-symbolic-link' on w32.
Fix file name quoting test.
(tramp-test32-environment-variables-and-port-numbers):
Adapt check for systems which do not support "echo -n".  (Bug#29712)
(tramp-test36-find-backup-file-name): Call also
`convert-standard-filename' due to w32.
(tramp-test41-asynchronous-requests):
Use $REMOTE_PARALLEL_PROCESSES.  Flush cache prior file operations.
(tramp-test42-auto-load, tramp-test42-delay-load)
(tramp-test42-recursive-load, tramp-test42-remote-load-path):
Quote command due to w32.

; ChangeLog.3: Remove stray phrase.

Bump Emacs version to 26.1.50

* msdos/sed2v2.inp:
* nt/README.W32:
* configure.ac:
* README: Bump Emacs version to 26.1.50.

Make cl-print respect print-level and print-length (bug#31559)

* lisp/emacs-lisp/cl-print.el (cl-print--depth): New variable.
(cl-print-object) <cons>: Print ellipsis if printing depth greater
than 'print-level' or length of list greater than 'print-length'.
(cl-print-object) <vector>: Truncate printing with ellipsis if
vector is longer than 'print-length'.
(cl-print-object) <cl-structure-object>: Truncate printing with
ellipsis if structure has more slots than 'print-length'.
(cl-print-object) <:around>: Bind 'cl-print--depth'.
* test/lisp/emacs-lisp/cl-print-tests.el
(cl-print-tests-3, cl-print-tests-4): New tests.

Place epg-pinentry-mode varalias before defcustom

This is needed to avoid losing user settings made under the obsolete
name (Bug#31603).
* lisp/epa.el (epa-pinentry-mode): Move obsolete varalias from here...
* lisp/epg-config.el (epg-pinentry-mode): ...to here.

Mention pcase as a fifth conditional form

* doc/lispref/control.texi (Conditionals): ...here,
in first para, w/ xref to "Pattern-Matching Conditional".

Overhaul pcase documentation

Suggested by Drew Adams (Bug#31311).

* doc/lispref/control.texi (Control Structures):
Add "Pattern-Matching Conditional" to menu, before "Iteration".
(Conditionals): Delete menu.
(Pattern matching case statement): Delete node/subsection,
by actually moving, renaming, and overhauling it to...
(Pattern-Matching Conditional): ...new node/section.
(pcase Macro): New node/subsection.
(Extending pcase): Likewise.
(Backquote Patterns): Likewise.
* doc/lispref/elisp.texi (Top) In @detailmenu, add
"Pattern-Matching Conditional" under "Control Structures"
section and delete "Conditionals" section.
* lisp/emacs-lisp/pcase.el (pcase): Rewrite docstring.
(pcase-defmacro \` (qpat) ...): Likewise.

Use EXPVAL in docstrings of patterns defined using pcase-defmacro

Suggested by Drew Adams (Bug#31311).

* lisp/emacs-lisp/cl-macs.el (cl-struct): ...here.
* lisp/emacs-lisp/eieio.el (eieio): Likewise.
* lisp/emacs-lisp/radix-tree.el (radix-tree-leaf): Likewise.
* lisp/emacs-lisp/rx.el (rx): Likewise.

Introduce EXPVAL for pcase, pcase-defmacro docstrings

Suggested by Drew Adams (Bug#31311).

* lisp/emacs-lisp/pcase.el (pcase): Use EXPVAL in
docstring to stand for the result of evaluating EXP.
(pcase-defmacro): Add (fn ...) form in docstring
that includes [DOC], and the EXPVAL convention.

Ensure pcase doc shows `QPAT first among extensions

* lisp/emacs-lisp/pcase.el (pcase--make-docstring):
Split extensions display into two phases, collection
and display, separated by a reordering step that
ensures backquote is the first.

Port .gdbinit to unsigned-pointer platforms

* src/.gdbinit (Lisp_Object_Printer.to_string):
Don’t assume that GDB treats C pointers as signed integers.
Problem found with GDB Fedora 8.1-15.fc28.

GNOME moved URLs for its active bug reports

* src/emacs.c (main) [USE_GTK]:
* src/gtkutil.c (xg_display_close):
* src/xterm.c (x_connection_closed):
Update GNOME bug report URLs.

Don’t set EMACS=t if Bash is 4.4 or newer

(Thanks to Stefan Monnier for improvements to this patch.)
* lisp/term.el (term--bash-needs-EMACS-status): New var.
(term--bash-needs-EMACSp): New function.
(term-exec-1): Use it instead of always setting EMACS.

replace-tests.el: Refactor undo tests

* test/lisp/replace-tests.el (replace-tests-bind-read-string): New variable.
(replace-tests-with-undo): Add helper macro to generate the boilerplate code.
(replace-tests--query-replace-undo, query-replace-undo-bug31073)
(query-replace-undo-bug31492, query-replace-undo-bug31538): Use it.

; * etc/NEWS: Call out recently removed aliases in epa.el.

Make `tramp-make-tramp-file-name' calls consistent.

* lisp/net/tramp.el (tramp-get-buffer)
(tramp-handle-file-name-as-directory)
(tramp-handle-file-name-directory, tramp-handle-file-remote-p)
(tramp-handle-file-truename, tramp-handle-find-backup-file-name)
(tramp-handle-insert-file-contents):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-expand-file-name)
(tramp-gvfs-get-remote-uid, tramp-gvfs-get-remote-gid)
(tramp-gvfs-maybe-open-connection):
* lisp/net/tramp-sh.el (tramp-sh-handle-file-truename)
(tramp-sh-handle-expand-file-name, )
(tramp-sh-handle-process-file, tramp-get-remote-path):
* lisp/net/tramp-smb.el (tramp-smb-handle-expand-file-name)
(tramp-smb-handle-process-file): Make `tramp-make-tramp-file-name'
calls consistent.

* etc/HELLO: Add a few more scripts.

replace-tests.el: Fix broken tests

After previous commit, all tests using helper function
`replace-tests-clauses' fail: during the expansion
of macro `replace-tests-with-undo', the function
`replace-tests-clauses' is unbound.

Delete those helpers and reimplement test
`query-replace-undo-bug31538'.
* test/lisp/replace-tests.el (query-replace-undo-bug31538):
Reimplement this test without using any helper function/macro.

query-replace undo: Handle when user edits the replacement string

* lisp/replace.el (perform-replace): Update the replacement string
after the user edit it (Fix Bug#31538).

* test/lisp/replace-tests.el (replace-tests-clauses): New function.
(replace-tests-bind-read-string): New variable.
(replace-tests-with-undo): Macro to create boilerplate code.
(query-replace-undo-bug31073): Use it.
(query-replace-undo-bug31538): New test.

Merge from origin/emacs-26

07f8f9b (origin/emacs-26) ; * lisp/ldefs-boot.el: Update.
5cec2b0 * etc/HISTORY: Update for Emacs 26.1 release.
7c474e1 * etc/AUTHORS: Update.
ddc7bea ; * ChangeLog.3: Update.
3557460 ; * admin/authors.el: Update.
2f44d2d Note caveat for backward regexp searching in docstring (Bug#3...
3145d08 Update backtrace in Emacs Lisp Intro
43a9c26 Move window-point in bibtex-search-entry
4bb2741 More fixes of Intro to Emacs Lisp
c57c226 ; * doc/emacs/misc.texi (FFAP): Fix a typo.  (Bug#31580)
0a51113 Add a footnote to Emacs Lisp Intro
5eabe4a ; * doc/emacs/msdos.texi (ls in Lisp): Fix a typo.  (Bug#31575)
d5e0ceb * lisp/help.el (with-help-window): Doc fix.  (Bug#31574)
e7952bd Fix some cross-references in emacs-lisp-intro.texi
a897959 Minor copyedits in Emacs manual in macos.texi

Conflicts:
lisp/ldefs-boot.el

; * lisp/ldefs-boot.el: Update.

* etc/HISTORY: Update for Emacs 26.1 release.

* etc/AUTHORS: Update.

; * ChangeLog.3: Update.

; * admin/authors.el: Update.

Note caveat for backward regexp searching in docstring (Bug#31584)

* src/search.c (Fre_search_backward): Emphasize that backwards
searches may give shorter than expected matches.
* doc/lispref/searching.texi (Regexp Search): Add an anchor for
re-search-backward to reference.

Update backtrace in Emacs Lisp Intro

* doc/lispintro/emacs-lisp-intro.texi (Making Errors): Update the
backtrace to match Emacs 26.  (Bug#31589)

Move window-point in bibtex-search-entry

* lisp/textmodes/bibtex.el (bibtex-search-entry): Move window-point
to record found.