This option controls the format of the help-echo when hovering
over the time display in mode line. (Bug#80143)
* lisp/time.el (display-time-help-echo-format): Add option.
(display-time-string-forms): Use it.
* etc/NEWS (Time): Announce the new option.
This function will truncate a string on a pixelwise basis in a
work buffer and using a binary search rather than brute force.
* lisp/emacs-lisp/subr-x.el (work-buffer--prepare-pixelwise):
New defun helper function.
(string-pixel-width): Use the helper function.
(truncate-string-pixelwise): New defun.
* test/lisp/misc-tests.el (misc-test-truncate-string-pixelwise):
(misc-test-truncate-string-pixelwise-unicode): New test.
* doc/lispref/display.texi (Size of Displayed Text): Document
the function.
* etc/NEWS: Announce the function.
* lisp/vc/diff-mode.el (diff--revert-kill-hunks): New workhorse
routine.
(diff-hunk-kill, diff-revert-and-kill-hunk): Call it.
(diff-hunk-kill): New BEG and END parameters and interactive
form.
* doc/emacs/files.texi (Diff Mode):
* etc/NEWS: Document the change.
* lisp/emacs-lisp/checkdoc.el (checkdoc--batch-flag): New variable.
(checkdoc-rogue-spaces, checkdoc-message-text): Use it along the
check for interactive calls to be able to collect errors in the
diagnostic buffer.
(checkdoc-show-diagnostics): Don't show the diagnostic buffer
when 'checkdoc--batch-flag' is non-nil.
(checkdoc-batch): New function to check the buffer and print the
content of the diagnostic buffer.
* lisp/icomplete.el (icomplete-exit): New alias for 'icomplete-fido-exit'.
(icomplete-minibuffer-map): Bind it to "M-j" .
* lisp/replace.el (multi-occur--prompt): Show "M-j" bound to 'icomplete-exit'
in 'icomplete-mode'.
* lisp/minibuffer.el (minibuffer--message-overlay)
(minibuffer--message-timer): New variables.
(minibuffer--delete-message-overlay): New function.
(minibuffer-message): Use a timer and 'pre-command-hook' to
clear message overlay instead of blocking with
'sit-for'. (bug#79510)
* etc/NEWS: Document the change.
The main reason for this is that then these commands can have
the same bindings in VC-Dir buffers that they have under
vc-prefix-map. 'T' is a good mnemonic for "Topic" and a
serviceable mnemonic for "outsTanding".
* lisp/vc/vc-hooks.el (vc-prefix-map): Move 'o' to 'T'.
* lisp/vc/vc-dir.el (vc-dir-mode-map): New 'T' bindings.
'select-frame-by-id' will also undelete a deleted frame ID.
* lisp/frame.el (select-frame-by-id, undelete-frame-by-id): New
commands.
(make-frame-ids-alist, frame-by-id, frame-id-live-p)
(undelete-frame-id-index): New defuns.
* etc/NEWS: Announce the commands.
* etc/NEWS: Announce the change.
* src/dispextern.h (struct glyph_row): Add
'extra_line_spacing_above' member.
(struct it): Add 'extra_line_spacing_above' member.
* src/frame.h (struct frame): Add 'extra_line_spacing_above'
member. Update comment for 'extra_line_spacing.'
* src/buffer.c (syms_of_buffer): Update the docstring of
'line-spacing' to describe the cons cell usage.
* src/buffer.h (struct buffer): Update comment for
'extra_line_spacing'.
* src/frame.c (gui_set_line_spacing): Handle cons cell value for
'line-spacing'. Calculate and set 'extra_line_spacing_above'
for both integer and float pairs.
* src/xdisp.c (init_iterator): Initialize 'extra_line_spacing_above'
from buffer or frame 'line-spacing', handling cons cells for both
integer and float values.
(gui_produce_glyphs): Use 'extra_line_spacing_above' to distribute
spacing between ascent and descent. Update 'max_extra_line_spacing'
calculation.
(resize_mini_window): Take line spacing into account when resizing the
mini window. Pass height of a single line to 'grow_mini_window' and
'shrink_mini_window'.
* src/window.c (grow_mini_window, shrink_mini_window): Add unit
argument which defines height of a single line.
* src/window.h (grow_mini_window, shrink_mini_window): Adjust function
prototypes accordingly with unit argument.
* lisp/subr.el (total-line-spacing): New function to calculate total
spacing from a number or cons cell.
(posn-col-row): Use total-line-spacing.
* lisp/simple.el (default-line-height): Use 'total-line-spacing'.
* lisp/textmodes/picture.el (picture-mouse-set-point): Use
'total-line-spacing'.
* lisp/window.el (window-default-line-height): Use
'total-line-spacing'.
(window--resize-mini-window): Take 'line-spacing' into account.
* test/lisp/subr-tests.el (total-line-spacing): New test.
* test/src/buffer-tests.el (test-line-spacing): New test.
* doc/emacs/display.texi (Display Custom): Document that
'line-spacing' can be a cons cell.
(Line Height): Document the new cons cell format for 'line-spacing'
to allow vertical centering.
Co-authored-by: Przemysław Alexander Kamiński <alexander@kaminski.se>
Co-authored-by: Daniel Mendler <mail@daniel-mendler.de>
* etc/NEWS: Announce the new customization option (bug#80215).
* lisp/textmodes/yaml-ts-mode.el (yaml-ts-mode): New customization group.
(yaml-ts-mode-yamllint-options): New customization option.
(yaml-ts-mode--flymake-process): New variable that stores the reference
to the flymake process.
(yaml-ts-mode-flymake): New function that implements support for Flymake.
* lisp/progmodes/json-ts-mode.el (json-ts--get-path-at-node)
(json-ts--path-to-jq, json-ts--path-to-python): New functions.
(json-ts-jq-path-at-point): New command for getting JSON path at point.
* test/lisp/progmodes/json-ts-mode-tests.el: New file.
Add tests for the utility command.
* etc/NEWS: Announce new command 'json-ts-jq-path-at-point' (bug#80190).
Some language servers request file watching for a very large number of
directories (e.g. Python virtualenvs), which can exhaust system
resources and cause slow startup.
https://github.com/joaotavora/eglot/issues/1568
* lisp/progmodes/eglot.el (eglot-max-file-watches): New variable.
(eglot--count-file-watches): New function.
(eglot--watch-globs): Use them to limit watches. Signal jsonrpc-error
when limit is reached.
(eglot-watch-files-outside-project-root): Fix docstring punctuation.
* etc/EGLOT-NEWS: Mention change.
The current 2026 landscape suggests servers (especially gopls
and ocamllsp) take advantage of this, so let's give it to them
by default.
* lisp/progmodes/eglot.el (eglot-advertise-cancellation):
Default to t.
* etc/EGLOT-NEWS: Mention change.
The info returned from `garbage-collect` is really handy to
track the evolution of the heap size, but sadly it's available only
at the cost of running a full GC, which has two big downsides:
it's slow, it affects what we're measuring, and it can't be used
in `post-gc-hook`.
So, this patch makes it available without running the GC.
* src/alloc.c (Fgarbage_collect_heapsize): New function, extracted from
`Fgarbage_collect`.
(Fgarbage_collect): Use it.
(syms_of_alloc): defsubr it.
* doc/lispref/internals.texi (Garbage Collection): Extract
documentation for it from that of `garbage-collect`.
* lisp/textmodes/text-mode.el (center-line-mode--track-changes):
New local variable for storing the id of the change tracker registered
for the current buffer.
(center-line-mode--track-changes-signal): New function to be called by
the track-changes library whenever there is a change in the current
buffer.
(center-line-mode--track-changes-function): New function called from the
above signal function, iterates over the lines of the modified region,
calling 'center-line' for each non-empty line.
(center-line-mode): New minor mode.
* etc/NEWS: Document the new minor mode.
* doc/misc/dbus.texi (Top): Add "Inhibitor Locks" submenu.
Remove trailing period from chapter and section titles.
(Inhibitor Locks): New node.
* etc/NEWS: New D-Bus functions to support systemd inhibitor locks.
Presentational fixes and improvements.
* src/dbusbind.c (xd_registered_inhibitor_locks): New variable.
(Fdbus_make_inhibitor_lock, Fdbus_close_inhibitor_lock)
(Fdbus_registered_inhibitor_locks): New DEFUNs. (Bug#79963)
(syms_of_dbusbind_for_pdumper): Initialize
`xd_registered_inhibitor_locks'.
(syms_of_dbusbind): Declare subroutines
`Sdbus_make_inhibitor_lock', `Sdbus_close_inhibitor_lock' and
`Sdbus_registered_inhibitor_locks'. Declare symbol `Qdbus_call_method'.
staticpro `xd_registered_inhibitor_locks'.
* test/lisp/net/dbus-tests.el (dbus--test-systemd-service)
(dbus--test-systemd-path, dbus--test-systemd-manager-interface):
New defconsts.
(dbus-test10-inhibitor-locks): New test.
* etc/NEWS:
* doc/emacs/maintaining.texi (Projects):
* lisp/progmodes/project.el (project-mode-line): Update
documentation due to changes in bug#78545.
Add an optional 'context' argument to 'make-progress-reporter'
which 'progress-reporter-echo-area' consults to inhibit updates
if the context is 'async' and the echo area is busy.
* lisp/subr.el (make-progress-reporter): Add the optional
'context' argument.
(progress-reporter-context): New defun accessor.
(progress-reporter-echo-area): Consult
'progress-reporter-context'.
* doc/lispref/display.texi: Document context.
* etc/NEWS: Announce context.
* lisp/textmodes/ispell.el (ispell-save-corrections-as-abbrevs):
New user option.
(ispell--abbrev-saving-allowed)
(ispell--save-correction-as-abbrev): New variables.
(ispell--maybe-save-correction-abbrev): New function.
(ispell-word, ispell-process-line): Use them to save corrections
as abbrevs when appropriate (bug#79985).
(ispell-command-loop): Add C-u as command character to toggle
abbrev saving for an immediately following replacement command.
(ispell-help): Document C-u binding.
* doc/emacs/fixit.texi (Spelling): Document new feature.
A unique frame id is assigned to a new or cloned frame, and
reused on an undeleted frame.
The id facilitates unambiguous identification among frames that
share identical names or titles, deleted frames where a live
frame object no longer exists that we can resurrect by id, for
example via 'tab-bar-undo-close-tab'. It also aids debugging at
the C level using the frame struct member id.
Rewrite 'clone-frame' and 'undelete-frame' to not let bind
variables that 'make-frame' uses to avoid conflicts with nested
'make-frame' calls, for example via
'after-make-frame-functions'.
* lisp/frame.el (clone-frame, undelete-frame): Use
'frame--purify-parameters' to supply parameters explicitly.
(undelete-frame--save-deleted-frame): Save frame id for
restoration.
(undelete-frame): Restore frame id.
(frame--purify-parameters): New defun.
(make-frame): Assign a new id for a new or cloned frame, reuse
for undeleted frame.
* src/frame.h (struct frame): Add id member.
(frame_next_id): New extern.
* src/frame.c (frame_next_id): New global counter.
(frame_set_id, frame_set_id_from_params): New function.
(Fframe_id): New DEFUN.
(syms_of_frame <Sframe_id>): New defsubr.
(syms_of_frame <Qinternal_id>): New DEFSYM.
(syms_of_frame <frame_internal_parameters>): Add 'Qinternal_id'.
* src/androidfns.c (Fx_create_frame):
* src/haikufns.c (Fx_create_frame):
* src/nsfns.m (Fx_create_frame):
* src/pgtkfns.c (Fx_create_frame):
* src/w32fns.c (Fx_create_frame):
* src/xfns.c (Fx_create_frame): Call 'frame_set_id_from_params'.
* doc/lispref/frames.texi: Add documentation.
* etc/NEWS: Announce frame id.
In a large (or simply long) file with many diagnostics, calling
eglot-range-region repeteadly constantly throws Emacs for a spin
around the buffer, since each diagnostics comes annotated with a
(line/col): LSP range spec that is reasonably expensive to
translate into Elisp point positions.
A much faster approach for such large lists is to first sort all the
objects containing ranges by their start lines and then do a
single pass of the buffer, moving lines by delta.
By much faster, I do mean spectacularly (100x) faster. A long python
with 7000 "ruff" diagnostics, before the change, typical editor
operations (add/delete words) are impossible.
14053 84% - jsonrpc-connection-receive
14052 84% - #<byte-code-function B94>
14052 84% - apply
14052 84% - eglot-handle-notification
14052 84% - applyn
14052 84% - #<byte-code-function 6DB>
14052 84% - eglot--flymake-handle-push
12295 74% - eglot--flymake-make-diag
12218 73% + eglot-range-region
50 0% + eglot--check-object
12 0% plist-member
3 0% flymake-make-diagnostic
After the change:
99 1% - jsonrpc-connection-receive
99 1% - #<byte-code-function 0EE>
99 1% - apply
99 1% - eglot-handle-notification
99 1% - apply
99 1% - #<byte-code-function E84>
99 1% - eglot--flymake-handle-push
99 1% - eglot--call-with-ranged
99 1% - #<byte-code-function 2C6>
99 1% - eglot-move-to-utf-16-linepos
99 1% line-end-position
* lisp/progmodes/eglot.el (eglot-move-to-linepos-function):
Forward declare.
(eglot--call-with-ranged, eglot--collecting-ranged): New helpers.
(eglot--flymake-report-1)
(eglot--imenu-SymbolInformation): Use eglot--collecting-ranged.
(eglot--imenu-DocumentSymbol): Could use eglot--collecting-ranged.
* etc/EGLOT-NEWS: Mention it
This documents how to use LSP multiplexer programs like Rassumfrassum
to connect multiple language servers to a single buffer.
* doc/misc/eglot.texi (Top): Add "Multi-server support" menu entry.
(Multi-server support): New chapter.
(Using Rassumfrassum, Design rationale): New sections documenting
how to use the Rassumfrassum multiplexer program with Eglot, with
practical examples for C++, Python, and multi-language files.
(Performance): Mention Rassumfrassum as solution for JSONRPC traffic
performance issues.
(Reporting bugs): Add guidance for troubleshooting multiplexer-related
bugs. Improve project description guidance. Fix various typos.
* lisp/progmodes/eglot.el (eglot-server-programs): Add a couple
of rass entries.
* etc/EGLOT-NEWS: Announce support for LSP server multiplexers via
Rassumfrassum.
* lisp/term/xterm.el (xterm-update-cursor): New user option.
(xterm--init): Use it.
(xterm--post-command-hook): New function for all xterm
functionality installed in 'post-command-hook'.
(xterm--init-frame-title): Install it.
(xterm--init-update-cursor, xterm--set-cursor-type)
(xterm--update-cursor-type, xterm--update-cursor-color): New
functions.
(xterm--cursor-type-to-int): New constant.
* doc/emacs/display.texi (Cursor Display):
* etc/NEWS: Document the new feature.
