Remove an unused parameter from 'child_setup' function.

* src/callproc.c (child_setup): Remove unused SET_PGRP parameter.

* src/callproc.c (call_process):
* src/process.c (create_process): Fix all callers.

Show image as text when trying to search/replace in image buffer (bug#25905)

* lisp/image-mode.el (image-mode-isearch-filter): New function.
(image-mode--setup-mode): Use it to add it as :before-while to
isearch-filter-predicate.

Improve the string-limit doc string

* lisp/emacs-lisp/subr-x.el (string-limit): Mention
truncate-string-to-width in the doc string.

Allow string-slice to take zero-length matches

* lisp/emacs-lisp/subr-x.el (string-slice): Allow zero-length
matches.  Code adapted from s.el by Magnar Sveen.

Revert recent server.el frame-focus changes

* lisp/server.el (server-switch-buffer, server-execute): Revert
9cef8fc8cdb5e6e18c9cf617eed3808d67ca340e and
c5f2eb56c0164e87abc881955552e0b718921186.  This change led to
regressions in non-new-frame circumstances.

Handle gracefully href="" in base tags in shr

* net/shr.el (shr-tag-base): shr-parse-base can't handle empty
strings gracefully.  Don't call it unless href is a non-empty
string (bug#45355).

Fix use of obsolete 'emergency' warning level

* src/alloc.c (display_malloc_warning): Use new style ':emergency'
warning level instead of obsolete 'emergency'.

Fix use of obsolete 'error' warning level

* src/fileio.c (auto_save_error): Use new style ':error' warning level
instead of obsolete 'error'.

Use new NSString lisp methods

* src/nsfont.m (ns_otf_to_script):
(ns_registry_to_script):
(ns_get_req_script): Use NSString conversion methods.
* src/nsimage.m ([EmacsImage allocInitFromFile:]): Use NSString
conversion methods.
* src/nsmenu.m (ns_menu_show): Use NSString conversion methods.
* src/nsselect.m (symbol_to_nsstring):
(ns_string_to_pasteboard_internal): Use NSString conversion methods.
* src/nsterm.m (ns_term_init):
([EmacsView initFrameFromEmacs:]): Use NSString conversion methods.
* src/nsxwidget.m (nsxwidget_webkit_uri):
(nsxwidget_webkit_title):
(js_to_lisp): Use NSString conversion methods.
(build_string_with_nsstr): Functionality replaced by NSString
extensions.

Align the word "Function" in profiler's headers over the actual functions

* lisp/profiler.el (profiler-report-render-calltree-1): Replace two
occurrences of "Function" with "  Function".

Ensure that Gnus servers are open(able) before searching them

* lisp/gnus/gnus-search.el (gnus-search-run-search): Imap servers need
to be opened (made into the "current server") before we manipulate the
nnimap-buffer.
(gnus-search-run-search): Sneakily fix regexp.
(gnus-search-indexed-parse-output): We need to pass the server name in
here, otherwise nnmaildir won't know how to make this the "current
server".

Align profiler's header-line-format to column 0, to work correctly on tty's

* lisp/profiler.el (profiler-report-header-line-format): Propertize the first
space with 'display '(space :align-to 0).

Re-order the items in `profiler-report' output.

Putting the usage figures first on the line will eliminate the truncation of
function names.

lisp/profiler.el (profiler-version): Change to "28.1".
(profiler-format): Enhance, so that a width of zero means print the string
without padding or truncation.
(profiler-report-cpu-line-format, profiler-report-memory-line-format): Amend
for the new layout.  The number of places for the cpu samples has been reduced
from 19 to 12 (enough for ~30 years at 1,000 samples per second).
(profiler-report-line-format, profiler-report-describe-entry): Amend for the
new order of arguments to profiler-format.

etc/NEWS (Specialized Modes): Add an entry documenting this change.

doc/lispref/debugging.texi (Profiling): Describe the new ordering of the items
in place of the old ordering.

Reorganize Tramp header lines

* lisp/net/tramp.el: Move header lines Version, Package-Requires,
Package-Type and URL ...
* lisp/net/trampver.el: ... here.

; Fix docstrings in last change to subr-x.el

Fix wdired-get-filename when ls -F marks symlinks

* lisp/wdired.el (wdired-get-filename): In some systems like BSD or
macOS, "ls -F" marks symlinks with a trailing "@".  Add logic
accounting for this so that wdired-get-filename returns the correct
filename.  This change also fixes test "wdired-test-bug34915" on macOS
and BSD systems (bug#34915).

Make string-pad take an optional START parameter

* lisp/emacs-lisp/subr-x.el (string-pad): Alter the calling
convention.

Change the string-limit parameter semantics

* lisp/emacs-lisp/subr-x.el (string-limit): Alter the calling
convention.

Further string-clean-whitespace tweaks

* lisp/emacs-lisp/subr-x.el (string-clean-whitespace): Put \r
back, which was mistakenly removed.

(ruby-mode-set-encoding): Use 'save-restriction'

* lisp/progmodes/ruby-mode.el (ruby-mode-set-encoding):
Use 'save-restriction' (bug#45349).

Tiny string-clean-whitespace simplification

* lisp/emacs-lisp/subr-x.el (string-clean-whitespace): Streamline by
treating replacement string as being literal and having fixed case.

Make string-chop-newline more efficient

* lisp/emacs-lisp/subr-x.el (string-chop-newline): Make more
efficient.

Make string-clean-whitespace work on non-ASCII whitespace, too

* lisp/emacs-lisp/subr-x.el (string-clean-whitespace): Also clean
up non-ASCII whitespace.

Add try-completion to the string shortdoc

* lisp/emacs-lisp/shortdoc.el (string): Mention try-completion here.

Add string-chop-newline

* doc/lispref/strings.texi (Creating Strings): Document it.
* lisp/emacs-lisp/subr-x.el (string-chop-newline): Add new function.

; Fix recent string utility additions

* etc/NEWS: Fix typo.
* lisp/emacs-lisp/subr-x.el (string-limit): Fix typos in docstring.
Simplify.
(string-slice): Improve docstring wording.
(string-pad): Simplify.

Fix shorter-than-length case for string-limit

* lisp/emacs-lisp/subr-x.el (string-limit): Fix
shorter-than-length case.

Rename slice-string to string-slice

* lisp/emacs-lisp/subr-x.el (string-slice): Rename from slice-string.
* doc/lispref/strings.texi (Creating Strings): Ditto.

Add `string-pad'

* doc/lispref/strings.texi (Creating Strings): Document it.
* lisp/emacs-lisp/shortdoc.el (string): Add example.

* lisp/emacs-lisp/subr-x.el (string-pad): New function.

Beef up the Emacs string utility set a bit

* doc/lispref/strings.texi (Modifying Strings): Document them.
* lisp/emacs-lisp/shortdoc.el (string): Add examples.

* lisp/emacs-lisp/subr-x.el (string-clean-whitespace)
(string-fill, string-limit, string-lines, slice-string): New
functions.

Fix frame creation on X when tool bar is disabled

* src/xterm.c (handle_one_xevent): Restrict the fix for bug#44002
to situations when we are asked by the WM to create a window with
bogus 1x1 dimensions.  (Bug#44794)

Fix permission problem in Tramp's copy-file

* lisp/net/tramp-sh.el (tramp-do-copy-or-rename-file-directly):
Take care of PRESERVE-UID-GID.

; * src/nsfns.m (all_nonzero_ascii): comment correction

Drop XEmacs support for EDE ELisp projects

* lisp/cedet/ede/proj-elisp.el (ede-proj-target-elisp): Remove
XEmacs support.
(ede-xemacs-compiler): Make obsolete.

Fix problem with entering Gnus groups when Gnus isn't running

* lisp/gnus/gnus-sum.el (gnus-update-summary-mark-positions):
Don't bug out when Gnus isn't running (bug#45330).

Make python-mode fontify more assignment statements

* lisp/progmodes/python.el (python-font-lock-assignment-matcher): New
function to match assignment statements.
(python-rx): Add `assignment-target' and `grouped-assignment-target'.
(python-font-lock-keywords-maximum-decoration): Add new matchers
(bug#45341).

Generic-ify xref-location-column

* lisp/progmodes/xref.el (xref-location-column):
Create a generic from xref-file-location-column, to use in the
common rendering code (bug#36967).
(xref--insert-xrefs): Update accordingly.

* test/lisp/progmodes/xref-tests.el
(xref-matches-in-directory-finds-two-matches-on-the-same-line)
(xref-matches-in-directory-finds-an-empty-line-regexp-match):
Ditto.

De-duplicate lines in Xref buffers

* lisp/progmodes/xref.el (xref--insert-xrefs):
Render matches coming from the same line together (bug#36967).
(xref--item-at-point): Account for the above.

Unbreak build after commit 1a0a11f7d2d1dbecb9f754b1e129d50e489058e6.

The commit only changed a comment in 'struct buffer', so the portable
dumper doesn't need to be adapted.

* src/pdumper.c (dump_buffer): Update hash for 'struct buffer'.

Fix image cache lookup

* src/image.c (lookup_image): ignore_colors should be false as we want
to search for images with matching colors.

Remove unnecessary string conversion

* src/nsfns.m (ns_set_represented_filename): NSString can load List
strings directly now.

* lisp/simple.el (goto-line-read-args): Use number-at-point (bug#45199)

* lisp/subr.el (goto-char--read-natnum-interactive): Add the value of
point to the end of default values, and move function slightly higher.

Improve make-process in Tramp

* doc/misc/tramp.texi (Remote processes): Remove INSIDE_EMACS
restriction.
(Frequently Asked Questions, External packages): Add indices.

* etc/NEWS: 'start-process-shell-command' and
'start-file-process-shell-command' do not support the old calling
conventions any longer.

* lisp/subr.el (start-process-shell-command)
(start-file-process-shell-command): Remove old calling conventions.

* lisp/net/tramp-compat.el (remote-file-error): Remove, it isn't
necessary.

* lisp/net/tramp.el (tramp-handle-make-process): Remove special shell
handling.  Support environment variables.

* test/lisp/net/tramp-tests.el
(tramp--test--deftest-direct-async-process): Skip for mock method.
(tramp--test-async-shell-command): Suppress `shell-command-sentinel'.
(tramp-test32-shell-command, tramp-test33-environment-variables):
Adapt tests.
(tramp-test32-shell-command-direct-async)
(tramp-test33-environment-variables-direct-async): New tests.

Inhibit buffer hooks in temporary buffers

Give get-buffer-create an optional argument to inhibit buffer hooks
in internal or temporary buffers for efficiency (bug#34765).

* etc/NEWS: Announce new parameter of get-buffer-create and
generate-new-buffer, and that with-temp-buffer and with-temp-file
now inhibit buffer hooks.

* doc/lispref/buffers.texi (Buffer Names): Fix typo.
(Creating Buffers): Document new parameter of get-buffer-create and
generate-new-buffer.
(Buffer List, Killing Buffers): Document when buffer hooks are
inhibited.
(Current Buffer):
* doc/lispref/files.texi (Writing to Files): Document that
with-temp-buffer and with-temp-file inhibit buffer hooks.
* doc/lispref/internals.texi (Buffer Internals): Document
inhibit_buffer_hooks flag.  Remove stale comment.
* doc/misc/gnus-faq.texi (FAQ 5-8):
* lisp/simple.el (shell-command-on-region): Fix indentation.

* lisp/files.el (kill-buffer-hook): Document when hook is inhibited.
(create-file-buffer):
* lisp/gnus/gnus-uu.el (gnus-uu-unshar-article):
* lisp/international/mule.el (load-with-code-conversion):
* lisp/mh-e/mh-xface.el (mh-x-image-url-fetch-image):
* lisp/net/imap.el (imap-open):
* lisp/net/mailcap.el (mailcap-maybe-eval):
* lisp/progmodes/flymake-proc.el
(flymake-proc--read-file-to-temp-buffer)
(flymake-proc--copy-buffer-to-temp-buffer): Simplify.

* lisp/subr.el (generate-new-buffer): Forward new optional argument
to inhibit buffer hooks to get-buffer-create.
(with-temp-file, with-temp-buffer, with-output-to-string):
* lisp/json.el (json-encode-string): Inhibit buffer hooks in buffer
used.

* src/buffer.c (run_buffer_list_update_hook): New helper function.
(Fget_buffer_create): Use it.  Add optional argument to set
inhibit_buffer_hooks flag instead of comparing the buffer name to
Vcode_conversion_workbuf_name.  All callers changed.
(Fmake_indirect_buffer, Frename_buffer, Fbury_buffer_internal)
(record_buffer): Use run_buffer_list_update_hook.
(Fkill_buffer): Document when buffer hooks are inhibited.  Use
run_buffer_list_update_hook.
(init_buffer_once): Inhibit buffer hooks in Vprin1_to_string_buffer.
(Vkill_buffer_query_functions, Vbuffer_list_update_hook): Document
when hooks are inhibited.
* src/buffer.h (struct buffer): Update inhibit_buffer_hooks
commentary.
* src/coding.h (Vcode_conversion_workbuf_name):
* src/coding.c (Vcode_conversion_workbuf_name): Make static again
since it is no longer needed in src/buffer.c.
(code_conversion_restore, code_conversion_save, syms_of_coding):
Prefer boolean over integer constants.
* src/fileio.c (Finsert_file_contents): Inhibit buffer hooks in
" *code-converting-work*" buffer.
* src/window.c (Fselect_window): Fix grammar.  Mention
window-selection-change-functions alongside buffer-list-update-hook.

* test/src/buffer-tests.el: Fix requires.
(buffer-tests-inhibit-buffer-hooks): New test.

image-cache-size improvements

Implement for non-Cairo X11 and NS.  Count masks as well, and
XImage objects on X11.

* src/image.c (image_size_in_bytes): New.
(image_frame_cache_size): Use image_size_in_bytes.
* src/nsterm.h:
* src/nsimage.m (ns_image_size_in_bytes, [EmacsImage sizeInBytes]):
New function and method.
* src/w32gui.h:
* src/w32term.c (w32_image_size): Update signature.

Fix default value of gnus-registry-register-all: should be t

* lisp/gnus/gnus-registry.el (gnus-registry-register-all): This was
meant to default to t; only an oversight during code review left it as
nil.

Jamie Beardslee <beardsleejamie@gmail.com>

* lisp/progmodes/project.el (project-execute-extended-command):
New command.
(project-prefix-map): Binding for it.

Copyright-paperwork-exempt: yes

* lisp/image-mode.el: Use one timer and lock for slow remote calls (bug#45256)

* lisp/image-mode.el (image-auto-resize-timer): New variable.
(image--window-state-change): Cancel previous timer and
remember new timer in image-auto-resize-timer.
(image--window-state-change): New variable.
(image-fit-to-window): When image-fit-to-window-lock is nil,
call image-toggle-display-image ignoring 'remote-file-error'.

No need to set isearch-input-method-function in isearch-transient-input-method

Convert apropos-internal from C to Lisp (Bug#44529)

This runs insignificantly faster in C, and is already fast enough on
reasonably modern hardware.  We might as well lift it to Lisp.
This benchmark can be used to verify:

  (benchmark-run 10 (apropos-command "test"))
  => (0.12032415399999999 2 0.014772391999999995) ; C
  => (0.13513192100000002 2 0.017216643000000004) ; Lisp

* lisp/subr.el (apropos-internal): New defun, converted from C.
* src/keymap.c (Fapropos_internal): Remove defun.
(apropos_accum): Remove function.
(apropos_predicate, apropos_accumulate): Remove variables.
(syms_of_keymap): Remove defsubr for Fapropos_internal, and
definitions of the above variables.
* test/src/keymap-tests.el (keymap-apropos-internal)
(keymap-apropos-internal/predicate): Move tests from here...
* test/lisp/subr-tests.el (apropos-apropos-internal)
(apropos-apropos-internal/predicate): ...to here.

Shorten some over-wide docstrings in functions and macros

* lisp/allout-widgets.el (allout-widgets-tally-string):
* lisp/array.el (array-mode):
* lisp/calc/calc-units.el (calc-spn):
* lisp/cedet/ede/generic.el (ede-generic-new-autoloader):
* lisp/cedet/semantic/analyze.el (semantic-analyze-find-tag-sequence-default)
(semantic-analyze-find-tag-sequence):
* lisp/cedet/semantic/bovine/c.el (semantic-c-evaluate-symbol-for-hideif):
* lisp/cedet/semantic/bovine/make.el (semantic-lex-make-command):
* lisp/cedet/semantic/db-typecache.el (semanticdb-typecache-include-tags):
* lisp/cedet/semantic/doc.el (semantic-documentation-for-tag):
* lisp/cedet/semantic/tag-ls.el (semantic--tag-attribute-similar-p):
* lisp/emacs-lisp/advice.el (ad-map-arglists):
* lisp/emacs-lisp/bytecomp.el (byte-constant2)
(byte-save-restriction, byte-catch-OBSOLETE, byte-unwind-protect):
* lisp/emacs-lisp/cl-generic.el (cl-generic-combine-methods):
* lisp/emacs-lisp/seq.el (seq-partition, seq-set-equal-p)
(seq-filter):
* lisp/faces.el (face-attribute-specified-or, face-equal):
* lisp/info.el (Info-prev-reference-or-link)
(Info-next-reference-or-link):
* lisp/isearch.el (with-isearch-suspended):
* lisp/kmacro.el (kmacro-step-edit-macro, kmacro-set-counter):
* lisp/org/org-agenda.el (org-agenda-filter-by-category):
* lisp/ses.el (ses-cell-symbol):
* lisp/w32-fns.el (w32-shell-dos-semantics): Shorten doc strings to
not exceed 80-column limits.  (Bug#44858)

Shorten over-wide docstrings in variables

* lisp/cedet/semantic/util-modes.el (semantic-highlight-func-popup-menu):
* lisp/emacs-lisp/elint.el (elint-top-form-logged):
* lisp/erc/erc-dcc.el (erc-dcc-list):
* lisp/expand.el (expand-pos):
* lisp/font-lock.el (cpp-font-lock-keywords-source-depth):
* lisp/gnus/gnus-sum.el (gnus-sort-gathered-threads-function):
* lisp/gnus/message.el (message-cite-style-thunderbird):
* lisp/gnus/nnmh.el (nnmh-be-safe):
* lisp/gnus/nntp.el (nntp-open-telnet-envuser):
* lisp/international/mule-cmds.el (current-transient-input-method):
* lisp/net/tramp.el (tramp-file-name-structure):
* lisp/org/ob-R.el (org-babel-R-write-object-command):
* lisp/org/org-attach.el (org-attach-after-change-hook):
* lisp/org/org.el (org-stamp-time-of-day-regexp):
* lisp/progmodes/elisp-mode.el (elisp-xref-find-def-functions):
* lisp/progmodes/ruby-mode.el (ruby-block-mid-re):
* lisp/progmodes/verilog-mode.el (verilog-cache-enabled):
* lisp/term.el (term-scroll-end):
* lisp/textmodes/table.el (table-command-remap-alist)
(table-inhibit-auto-fill-paragraph, table-command-remap-alist):
* lisp/vc/ediff-diff.el (ediff-ignore-similar-regions):
* lisp/vc/ediff-wind.el (ediff-mouse-pixel-threshold):
* lisp/vc/smerge-mode.el (smerge-refine-ignore-whitespace):
* lisp/vc/vc.el (vc-log-short-style):
* lisp/view.el (view-exit-action): Shorten doc strings to not exceed
80-column limits.  (Bug#44858)

Shorten over-wide docstrings in defcustoms

* lisp/calc/calc.el (calc-embedded-announce-formula-alist)
(calc-embedded-open-formula, calc-embedded-close-formula)
(calc-matrix-mode):
* lisp/cedet/semantic/imenu.el (semantic-imenu-sort-bucket-function):
* lisp/emacs-lisp/find-func.el (find-feature-regexp):
* lisp/emulation/cua-base.el (cua-paste-pop-rotate-temporarily):
* lisp/emulation/viper-init.el (viper-fast-keyseq-timeout)
(viper-related-files-and-buffers-ring):
* lisp/emulation/viper-keym.el (viper-want-ctl-h-help):
* lisp/gnus/gnus-art.el (gnus-article-banner-alist):
* lisp/gnus/gnus-group.el (gnus-keep-same-level):
* lisp/gnus/gnus-score.el (gnus-adaptive-word-length-limit):
* lisp/gnus/gnus-sum.el (gnus-inhibit-user-auto-expire):
* lisp/gnus/gnus-uu.el (gnus-uu-ignore-files-by-type)
(gnus-uu-do-not-unpack-archives)
(gnus-uu-unmark-articles-not-decoded)
(gnus-uu-correct-stripped-uucode, gnus-uu-save-in-digest)
(gnus-uu-post-include-before-composing):
* lisp/gnus/gnus.el (gnus-use-long-file-name)
(gnus-install-group-spam-parameters):
* lisp/gnus/message.el (message-cite-style):
* lisp/gnus/nnmail.el
(nnmail-split-fancy-with-parent-ignore-groups)
(nnmail-cache-ignore-groups):
* lisp/ido.el (ido-rewrite-file-prompt-functions):
* lisp/mail/feedmail.el (feedmail-fiddle-plex-user-list)
(feedmail-spray-address-fiddle-plex-list):
* lisp/mh-e/mh-e.el (mh-annotate-msg-hook):
* lisp/net/imap.el (imap-process-connection-type):
* lisp/net/rcirc.el (rcirc-omit-threshold):
* lisp/net/tramp-sh.el (tramp-copy-size-limit):
* lisp/nxml/nxml-mode.el (nxml-default-buffer-file-coding-system):
* lisp/obsolete/landmark.el (landmark-max-stall-time):
* lisp/obsolete/tls.el (tls-checktrust):
* lisp/org/org-indent.el
(org-indent-mode-turns-off-org-adapt-indentation)
(org-indent-mode-turns-on-hiding-stars):
* lisp/org/org-protocol.el (org-protocol-project-alist):
* lisp/progmodes/cc-vars.el (c-doc-comment-style):
* lisp/progmodes/cperl-mode.el (cperl-indent-subs-specially):
* lisp/progmodes/flymake-proc.el (flymake-proc-allowed-file-name-masks):
* lisp/progmodes/hideif.el (hide-ifdef-expand-reinclusion-protection):
* lisp/simple.el (minibuffer-history-case-insensitive-variables):
* lisp/tab-bar.el (tab-bar-close-last-tab-choice):
* lisp/textmodes/reftex-vars.el
(reftex-special-environment-functions):
* lisp/vc/ediff-init.el (ediff-startup-hook, ediff-cleanup-hook)
(ediff-metachars):
* lisp/vc/ediff-merg.el (ediff-show-clashes-only):
* lisp/vc/ediff-mult.el (ediff-default-filtering-regexp): Shorten doc
strings to not exceed 80-column limits.  (Bug#44858)

Correct units and spacing in memory-report

* lisp/emacs-lisp/memory-report.el (memory-report--format):
Use IEC unit prefixes and a space before.

Set indent-tabs-mode for c-mode in .dir-locals.el

* .dir-locals.el (c-mode): Enforce existing indent-tabs-mode
policy.  (Bug#34765)

; Revert unintended change.

Fix over-wide doc strings

* lisp/vc/ediff-init.el (ediff-before-flag-bol)
(ediff-after-flag-eol, ediff-before-flag-mol):
* lisp/org/org-ctags.el (org-ctags-open-link-functions):
* lisp/mail/feedmail.el (feedmail-sendmail-f-doesnt-sell-me-out):
* lisp/language/ethio-util.el (ethio-use-three-dot-question)
(ethio-quote-vowel-always, ethio-W-sixth-always):
* lisp/gnus/nnvirtual.el (nnvirtual-mapping-table)
(nnvirtual-mapping-offsets, nnvirtual-mapping-reads)
(nnvirtual-mapping-marks, nnvirtual-info-installed):
* lisp/gnus/gnus.el (charset):
* lisp/gnus/deuglify.el (gnus-outlook-deuglify-unwrap-stop-chars)
(gnus-outlook-deuglify-no-wrap-chars)
(gnus-outlook-deuglify-attrib-cut-regexp): Fix doc strings to not
exceed 80-column limits.  (Bug#44858)

bibtex-mode: Permit user-defined schemes for sorting entries.

* lisp/textmodes/bibtex.el (bibtex-maintain-sorted-entries):
New allowed value (INDEX-FUN PREDICATE).
(bibtex-entry-index, bibtex-lessp): Use it.
(bibtex-init-sort): Rename from bibtex-init-sort-entry-class-alist.

* lisp/emacs-lisp/package.el (package-quickstart-refresh): Fix last change

Actually allow byte-compiling the file.
Reported by Basil L. Contovounesios <contovob@tcd.ie>.

; Fix grammar in recent change to internals.texi

; Fix @pxref in last change to flymake.texi

; Merge from origin/emacs-27

The following commit was skipped:

37eba74d60 (tag: emacs-27.1.90, origin/emacs-27) Update files for the...

Merge from origin/emacs-27

48b9c47805 Minor fixes in authors.el and in tarball-making instructions
d7a4ceaa1e ; Add a new item to TODO
64fe805b19 Improve documentation of 'query-replace'
7cacf5da47 Update to Org 9.4.3

# Conflicts:
# admin/authors.el

Document that flymake-diag-region saves match data

The typical use of this function (which is parsing compiler diagnostic
messages), lends itself too easily to one the problems in bug#29193.
Make it a friendlier API.

* doc/misc/flymake.texi (Flymake utility functions): Document that
flymake-diag-region saves match data.

* lisp/progmodes/flymake.el (flymake-diag-region): Document that
this saves match data.

Update files for the 27.1.90 pretest

* README:
* configure.ac:
* nt/README.W32:
* msdos/sed2v2.inp: Bump Emacs version to 27.1.90.
* lisp/ldefs-boot.el: Update from loaddefs.el

* lisp/emacs-lisp/package.el: Byte compile the quickstart file

Earlier tests had found problems when byte-compiling the file,
but later investigations indicated the problem was not
directly related.  The performance difference is appreciable.

(package-quickstart-refresh): Byte compile the file.
(package-activate-all): Load byte-compiled version if available.
(package--quickstart-maybe-refresh): Delete the byte-compiled file as well.

Minor fixes in authors.el and in tarball-making instructions

* admin/authors.el (authors): Make the error message more helpful.
(authors-ignored-files, authors-renamed-files-alist): Update.

* lisp/progmodes/which-func.el (which-func-update): Bind `non-essential`

Follow good regexp practice

These were found by relint 1.19.

* lisp/help-fns.el (help-fns--first-release): Use string-end instead
of line-end when matching a file name.
* lisp/org/ob-core.el (org-babel--string-to-number): Put hyphen last
in alternative.
* lisp/org/org-agenda.el (org-agenda-filter): Escape '+' correctly.

* lisp/net/tramp.el (tramp-handle-make-process): Handle shell commands.

Save match data in flymake-diag-region (bug#29193)

* lisp/progmodes/flymake.el (flymake-diag-region): Move
save-match-data up.

Fix previous frame-focus server.el change

* lisp/server.el (server-execute): Always give Emacs focus,
whether we open a new frame or not.

Fix regexp in IMAP search-string preparation

* lisp/gnus/gnus-search.el (gnus-search-run-search): This was failing
to catch all of X-GM-RAW.

flymake-diag-region: Fix the recent test breakage

* lisp/progmodes/flymake.el (flymake-diag-region):
Make sure to save the match data (bug#29193).

* lisp/org/org-refile.el (org-copy): Fix missing obsoletion version

Some minor Tramp changes

* doc/lispref/os.texi (Timers): Speak about `remote-file-error'.

* doc/misc/tramp.texi (Frequently Asked Questions): Speak about
`remote-file-error'.
(External packages): New subsection "Timers".

* lisp/net/tramp-adb.el (tramp-adb-handle-make-process):
* lisp/net/tramp-sh.el (tramp-sh-handle-make-process): Adapt error
function.  Handle coding.

* lisp/net/tramp.el (tramp-handle-make-process): Adapt error function.

Remove incorrect comment from erc-goodies.el

* lisp/erc/erc-goodies.el (erc-move-to-prompt-setup): Remove incorrect
comment; the XEmacs compat code has been removed.

Fix my two most common causes of all windows/frames redisplay

* src/buffer.c (Fkill_all_local_variables): Only redisplay the buffer.
* src/window.c (set_window_scroll_bars): Only redisplay the window.

Make "Invalid modifier in string" ordinary invalid-read-syntax error

* src/lread.ec (read1): Raise "Invalid modifier in string" error as
  `invalid-read-syntax'.  This fixes raise of unhandled error in
  `elisp--local-variables'

; Add a new item to TODO

* etc/TODO (redisplay): Add an item for making redisplay cycle
more scalable when there are many frames.

Fix fallback use of write-file in ido-mode

* lisp/ido.el (ido-file-internal): Make `write-file' respect the
directory we've navigated to (bug#28513).

Ensure that byte compilation works for relative files (Bug#45287).

* lisp/emacs-lisp/bytecomp.el (byte-compile-file): Don’t fail if
target filename doesn’t contain a directory name.

* test/lisp/emacs-lisp/bytecomp-tests.el
(bytecomp-tests--target-file-no-directory): New unit test.

Default the init file to init.el, not init

* lisp/startup.el (startup--load-user-init-file): Make the default
init file be "init.el", not "init" (bug#45197).

Fix resetting of gnus-pick-line-number

* lisp/gnus/gnus-sum.el (gnus-summary-read-group-1): Move setting
gnus-pick-line-number from here (bug#45269)...
(gnus-summary-prepare): To here.  This ensures that the number is
reset when regenerating the buffer, for instance when limiting it.

Don't show minibuffer keybindings for suggestions in read-extended-command

* lisp/simple.el (read-extended-command): Use 'affixation-function'
instead of 'annotation-function'.  (Bug#45035)
(read-extended-command--affixation): New function created from
'read-extended-command--annotation'.

Give affixation-function higher priority over annotation-function (bug#45234)

* doc/lispref/minibuf.texi (Completion Variables)
(Programmed Completion): Describe precedence rules
of affixation-function and annotation-function.

* lisp/minibuffer.el (completion-metadata)
(completion-extra-properties): Describe precedence rules
of affixation-function and annotation-function.
(minibuffer-completion-help): First try to apply
affixation-function, if there is no such function,
try annotation-function.

Improve documentation of 'query-replace'

* doc/emacs/search.texi (Query Replace): Add 'E' to the list of
characters one can type at 'query-replace' prompt.  (Bug#45273)

Update to Org 9.4.3

Fix #45259

CPerl-mode: don't treat <<>> as starting a here-doc

* lisp/progmodes/cperl-mode.el (cperl-find-pods-heres): Detect
the "<<>>" operator (Bug#42455).

* test/lisp/progmodes/cperl-mode-tests.el
(cperl-test-bug-45255): Verify that <<>> does not start a
HERE-doc.

Update short docs in cperl-mode

* lisp/progmodes/cperl-mode.el (cperl-short-docs):
Update with some missing entries.  (Bug#45254)

; * lisp/play/5x5.el: Fix my last change.

(flymake-diag-region): Fall back to (end-of-thing 'symbol)

* lisp/progmodes/flymake.el (flymake-diag-region):
Fall back to (end-of-thing 'symbol) (bug#29193).

Fix C-n/C-p when a line starts with an image

* src/xdisp.c (move_it_to): Handle the case where the second call
to move_it_in_display_line_to under MOVE_TO_Y takes us farther
from TO_CHARPOS than the first call.  This fixes values returned
by pos-visible-in-window-p and posn-at-point when the screen line
starts with invisible text followed by an image.  (Bug#9092)

; Merge from origin/emacs-27

The following commit was skipped:

ee6c702e18 (origin/emacs-27) Fix error with fn key in NS port (bug#44...

Merge from origin/emacs-27

668f0a7f84 Fix point location when completing in gdb-mi.el
2dbc95063b Update to Org 9.4.2
f22856a5c5 Update to Org 9.4.1

# Conflicts:
# doc/misc/org.texi
# lisp/org/ob-core.el
# lisp/org/ob-ruby.el
# lisp/org/ob-screen.el
# lisp/org/ol-gnus.el
# lisp/org/ol.el
# lisp/org/org.el

; Merge from origin/emacs-27

The following commit was skipped:

6aa9fe3e1b Fix crash in ns_mouse_position (bug#44313)

Merge from origin/emacs-27

62a6934af9 Fix crash when using XRender and restoring image from X (b...
de032d41c6 Bind k to image-kill-buffer in doc-view-mode-map.

Fix setting breakpoints in "M-x gdb" when a source file is missing

* lisp/progmodes/gdb-mi.el (gdb-get-location): Fix control flow
logic when "fullname" is not found.  Unquote and unescape the full
file name by calling gdb-mi--c-string-from-string.  FLAG is a
string, not a character.  (Bug#15051)

CC Mode: Optimize for scrolling large buffers containing few braces

This fixes bug #25706.  It particularly pertains to .h files which contain
only macro definitions.  Many of these files are to be found, for example, in
the driver sections of the Linux kernel.

* lisp/progmodes/cc-engine.el (c-beginning-of-statement-1, c-on-identifier)
(c-syntactic-skip-backward, c-find-decl-prefix-search, c-find-decl-spots)
(c-forward-name, c-back-over-list-of-member-inits)
(c-back-over-member-initializers, c-looking-at-inexpr-block)
(c-guess-basic-syntax): Give search limits to, or amend existing ones to
c-backward-syntactic-ws, c-forward-syntactic-ws, c-backward-token-2,
c-beginning-of-statement-1.
(c-determine-limit-no-macro): New function.
(c-determine-limit-get-base): Remove unlimted invocation of
c-backward-syntactic-ws.
(c-determine-limit): Exclude movement between two different macros.  Use new
function c-determine-limit-no-macro.
(c-back-over-list-of-member-inits): New parameter `limit'.

* lisp/progmodes/cc-fonts.el (c-font-lock-complex-decl-prepare)
(c-font-lock-declarations, c-font-lock-c++-using): Give search limits to, or
amend existing ones to c-backward-syntactic-ws, c-beginning-of-decl-1.

* lisp/progmodes/cc-mode.el (c-unfind-coalesced-tokens, c-before-changer)
(c-fl-decl-end): Give search limits to, or amend existing ones to
c-backward-syntactic-ws, c-forward-syntactic-ws, skip-chars-backward,
skip-chars-forward.

Revert last change in tramp-maybe-open-connection)

* lisp/net/tramp-sh.el (tramp-maybe-open-connection): Revert last change,
it causes trouble.