The old boolean 'eglot-prefer-plaintext' is replaced by the more
expressive 'eglot-documentation-renderer', which can hold a major-mode
symbol, t (plain text), or nil (auto-detect each time). By selecting a
renderer once at startup the repeated per-request lookups are avoided,
which helps with the slowness reported in bug#81150.
* lisp/progmodes/eglot.el (eglot-prefer-plaintext): Declare obsolete
alias to 'eglot-documentation-renderer'.
(eglot-documentation-renderer): New defcustom, reworked from from
eglot-prefer-plaintext.
(eglot--accepted-formats): Use new variable.
(eglot--format-markup): Use new variable.
* etc/EGLOT-NEWS: Announce change.
* doc/misc/eglot.texi (Customization Variables): Document
eglot-documentation-renderer.
* lisp/net/eww.el (eww-form-submit): Call put-text-property to
add help-echo and shr-tab-stop properties.
(eww-tag-input): Exclude inputs with type="submit" when adding
the help-echo and shr-tab-stop properties, since that's now done
in eww-form-submit, called earlier for type="submit".
* msdos/sedlibmk.inp (GL_GNULIB_MEMEQ, GL_GNULIB_STREQ)
(GL_GNULIB_STRNUL): New substitutions, replacing that of
GL_GNULIB_STRINGEQ.
* src/term.c (init_tty) [MSDOS]: Assign appropriate value to
tty->TN_max_colors.
Do not merge to master.
* lisp/replace.el (query-replace-read-args): Add :lax-whitespace to
minibuffer-lazy-highlight-setup, so lazy highlight during
query-replace respects replace-lax-whitespace and
replace-regexp-lax-whitespace (bug#81131).
Copyright-paperwork-exempt: yes
* lisp/textmodes/fill.el (fill-paragraph): Handle the case
when a non-comment line follows a comment line with
non-nil 'fill-paragraph-handle-comment' (bug#80449).
Skip such a comment line before filling a non-comment line.
* test/lisp/textmodes/fill-tests.el
(fill-test-fill-paragraph-handle-comment): Add new test.
* test/lisp/textmodes/fill-resources/fill-paragraph-handle-comment.erts:
New file.
* lisp/emacs-lisp/comp-run.el
(native--compile-skip-on-battery-p): Don't skip charging because
the battery is charging, and don't look for "discharging", at
least for now (bug#80922). Thanks to David Koppelman
<koppel@ece.lsu.edu> for the report.
* lisp/progmodes/grep.el (grep-edit-original-mode-map): New
variable.
(grep-change-to-grep-edit-mode): Save the current local map
before switching to grep-edit-mode-map.
(grep-edit-save-changes): Restore the saved local map instead of
assuming grep-mode-map (bug#81090).
Copyright-paperwork-exempt: yes
The 'completion-regexp-list' optimization in
completion--flex-all-completions-1, a cheap pre-filter via a trivial
regexp, performs very poorly for longer patterns and strings, so drop
it. That alone recovers fairly decent performance for the flex
completion when compared to the 'hotfuzz' point of reference.
We then recover the cheap rejection with an O(N+M) pre-check in the
Fcompletion__flex_cost_gotoh C scorer. This kicks in the common case
(completion-ignore-case is nil) and pays off especially when the table
is already a list and 'all-completions' needn't cons.
See:
https://lists.gnu.org/archive/html/emacs-devel/2026-04/msg01081.htmlhttps://lists.gnu.org/archive/html/emacs-devel/2026-05/msg00519.html
* lisp/minibuffer.el (completion--flex-all-completions-1): Remove
regexp pre-filter.
* src/minibuf.c (Fcompletion__flex_cost_gotoh): Add subsequence
pre-check.
* lisp/progmodes/compile.el
(compilation-error-regexp-alist-alist): Put 'rust' before 'gnu'
to avoid a mismatch since the " |" has become optional (bug#81075).
Copyright-paperwork-exempt: yes
* lisp/textmodes/markdown-ts-mode.el (markdown-ts-mode-maybe):
New function.
(auto-mode-alist): Bind ".md", ".markdown", and ".mdx" to
'markdown-ts-mode-maybe' instead of 'markdown-ts-mode'.
* etc/NEWS: Update the 'markdown-ts-mode' entry.
* lisp/disp-table.el (prettify-special-glyphs-mode): New mode to
display nicer special glyphs.
(special-glyphs): New face for displaying special glyphs when
the minor mode is active.
(prettify-special-glyphs-saved-truncation)
(prettify-special-glyphs-saved-continuation): Internal variables
to save previous special glyphs.
* etc/NEWS: Announce the change. (Bug#80628)
More context in Bug#80786 and:
https://lists.gnu.org/archive/html/emacs-orgmode/2026-03/msg00286.html
`icalendar-recur' as a type name for RRULE values was confusing and made
the accessors for this type difficult to discover, because `icalendar-recur-'
is also used as a prefix in icalendar-recur.el. This change renames the
`icalendar-recur' type to `icalendar-rrule-value' and renames the
accessor functions for these values appropriately.
* lisp/calendar/icalendar-parser.el: Rename symbols as follows:
(icalendar-recur): `icalendar-rrule-value'
(icalendar-read-recur-rule-part): `icalendar-read-rrule-part'
(icalendar-print-recur-rule-part): `icalendar-print-rrule-part'
(icalendar-recur-rule-part): `icalendar-rrule-part'
(icalendar-read-recur): `icalendar-read-rrule-value'
(icalendar-print-recur): `icalendar-print-rrule-value'
(icalendar--recur-value-types): `icalendar--rrule-value-types'
(icalendar-recur-value-p): `icalendar-rrule-value-p'
(icalendar-recur-freq): `icalendar-rrule-freq'
(icalendar-recur-interval-size): `icalendar-rrule-interval-size'
(icalendar-recur-until): `icalendar-rrule-until'
(icalendar-recur-count): `icalendar-rrule-count'
(icalendar-recur-weekstart): `icalendar-rrule-weekstart'
(icalendar-recur-by*): `icalendar-rrule-by*'.
(icalendar-rrule):
(icalendar-index-insert):
(icalendar-index-get): Update references.
* lisp/calendar/icalendar-recur.el (icalendar-recur-find-interval):
(icalendar-recur-nth-interval):
(icalendar-recur-next-interval):
(icalendar-recur-previous-interval):
(icalendar-recur-refine-from-clauses):
(icalendar-recur-recurrences-in-interval):
(icalendar-recur-recurrences-in-window):
(icalendar-recur-recurrences-to-count):
(icalendar-recur-tz-observance-on): Update references.
* lisp/calendar/diary-icalendar.el: Update references.
* lisp/calendar/icalendar-shortdoc.el (icalendar): Update shortdoc examples.
* lisp/gnus/gnus-icalendar.el: Update references.
* test/lisp/calendar/diary-icalendar-tests.el:
* test/lisp/calendar/icalendar-parser-tests.el:
* test/lisp/calendar/icalendar-recur-tests.el: Update references in tests.
* lisp/gnus/gnus-msg.el (gnus-inews-make-draft-meta-information):
Escape the group name with prin1-to-string to prevent arbitrary
Lisp injection through crafted group names. The unescaped group
name was embedded into a Lisp-readable string, parsed back with
read-from-string in gnus-draft-setup, and eventually eval'd via
message-do-actions, allowing code execution when a draft was sent.
With Emacs 31 the old_buffer slot of a window gets overwritten
with the buffer unshown in that window when that window is
deleted. Fset_window_configuration triggers that when calling
delete_all_child_windows. If a window configuration gets saved
and restored in one and the same redisplay cycle, the change
time stamps of the window and its frame will be equal and
'window-buffer-change-functions' may wrongly decide that the
window's buffer has not changed because its buffer and
old_buffer slots refer to the same buffer (Bug#81097). Fix that
by saving and restoring the old_buffer slot.
* src/window.c (struct saved_window): Add 'old_buffer' slot.
(Fset_window_configuration): Restore old_buffer slot.
(save_window_save): Save old_buffer slot.
* lisp/isearch.el (lazy-highlight, lazy-highlight-initial-delay)
(lazy-highlight-buffer, isearch-lazy-highlight, isearch-forward):
* lisp/replace.el (query-replace, query-replace-lazy-highlight)
(query-replace, query-replace-regexp): Doc fixes.
* doc/emacs/search.texi (Search Customizations): Document
'lazy-highlight-buffer' and 'lazy-highlight-buffer-max-at-a-time'.
Use @vtable to avoid the need of indexing each variable
separately.
* src/gtkutil.c (xg_frame_set_size_and_position): Remove a
gtk_window_resize call which used a wrong value type
(GdkX11Window instead of GtkWindow). The original motivation
for that line seems to be fixed by later changes (bug#80662).
* lisp/net/shr.el (shr-outline-search):
Don't check for the beginning of the line.
Suggested by Omar Antolín Camarena <omar@im.unam.mx>.
Confirmed by Rahguzar <rahguzar@mailbox.org>.
* lisp/auth-source.el (auth-source-backend-parse): Use `run-hook-wrapped'.
Suggested by Augusto Stoffel <arstoffel@gmail.com>.
Transform a warning into a debug message.
No reason not to. Tested with gfm-view-mode and markdown-ts-mode
* lisp/progmodes/eglot.el (eglot-client-capabilities): Annouce
markdown support for completion docs.
