Commit graph

6213 commits

Author SHA1 Message Date
Basil L. Contovounesios
8f76396da4 ; Mention when make_unibyte_string was introduced. 2026-02-14 20:41:20 +01:00
Basil L. Contovounesios
080ee7f7ec ; Fix define-obsolete-face-alias entry in manual. 2026-02-14 20:32:31 +01:00
Eli Zaretskii
869ad24216 ; Improve documentation of Edebug
* doc/lispref/edebug.texi (Edebug, Using Edebug, Instrumenting)
(Source Breakpoints, Specification List): Improve indexing and
tell how to end debugging.
2026-02-14 14:51:41 +02:00
Eli Zaretskii
6aefaca819 Adjust documentation to changes in 'overlays-in' and 'overlays-at'
* src/buffer.c (overlays_in): Fix commentary to match the code.
(Foverlays_in, Foverlays_at): Doc fixes.  (Bug#80242)

* test/src/buffer-tests.el (test-overlays-at-2): Add one test.

* doc/lispref/display.texi (Finding Overlays): Update and improve
the documentation of 'overlays-in' and 'overlays-at'.

* etc/NEWS: Announce the changes.
2026-02-14 11:37:52 +02:00
Morgan Willcock
a1e32130de Fix typo in smie-rules-function documentation
Fix a typo in the documentation for the expected arguments when
calling smie-rules-function to set the indentation offset of
function arguments.

* doc/lispref/modes.texi (SMIE Indentation):
* lisp/emacs-lisp/smie.el (smie-rules-function): Fix typo in
documentation for smie-rules-function arguments.
2026-02-11 15:35:29 -05:00
Sean Whitton
90fbadb3b1 cond*: bind-and* is not always a non-exit clause!
* lisp/emacs-lisp/cond-star.el (cond*-non-exit-clause-p)
(cond*-non-exit-clause-substance): Don't consider a bind-and*
clause without ':non-exit' to be a non-exit clause (bug#80376).
(cond*):
* doc/lispref/control.texi (cond* Macro): Fix docs accordingly.
2026-02-11 14:23:38 +00:00
Stéphane Marks
6967a8ac54 ; system-sleep texi markup fix (bug#80348)
* doc/lispref/os.texi (System Sleep): Minor markup fixes.
2026-02-11 14:32:02 +01:00
Eli Zaretskii
e464052a28 ; Fix recently installed changes
* src/w32fns.c (w32_register_for_sleep_notifications)
(sleep_notification_callback): Fix signatures.
* src/w32term.h (w32_register_for_sleep_notifications): Fix
prototype.  These changes avoid compilation warnings.

* lisp/system-sleep.el: Remove stray non-ASCII character.

* doc/lispref/os.texi (System Sleep): Remove non-ASCII character,
and fix wording and markup.

* etc/NEWS: Fix wording of recently-added entry.
2026-02-11 14:44:09 +02:00
Stéphane Marks
0bee754a72 system-sleep sleep blocker and sleep/wake event package (bug#80348)
This package provides platform-neutral interfaces to block your
system from entering idle sleep and a hook to process pre-sleep
and post-wake events.

Implementations are for D-Bus on GNU/Linux, macOS/GNUstep, and
MS-Windows.

* lisp/system-sleep.el: New package.
* src/fns.c: Qpre_sleep, Qpost_wake: New DEFSYM.
* src/nsfns.m (Fns_block_system_sleep, Fns_unblock_system_sleep)
(syms_of_nsfns): New functions.
* src/nsterm.m (applicationDidFinishLaunching): Subscribe to
pre-sleep and post-wake notifications.
(systemWillSleep, systemDidWake): New function.
* src/w32fns.c (Fw32_block_system_sleep)
(Fw32_unblock_system_sleep, Fw32_system_sleep_block_count)
(sleep_notification_callback)
(w32_register_for_sleep_notifications): New function.
(syms_of_w32fns): Sw32_unblock_system_sleep
Sw32_block_system_sleep Sw32_system_sleep_block_count: New
defsubr.
* src/w32term.h (Fw32_block_system_sleep): New extern.
* src/w32term.c (w32_initialize): Call
w32_register_for_sleep_notifications.
* doc/lispref/os.texi: Document the system-sleep package.
* doc/lispref/commands.texi: Update sleep-event special
documentation.
* etc/NEWS: Announce the new package.
2026-02-11 09:52:38 +01:00
Michael Albinus
c65a4e6a43 ; * doc/lispref/os.texi (Timers): Fix typo. 2026-02-09 18:31:04 +01:00
Sean Whitton
2437a45144 ; Further fixes to core documentation for cond*. 2026-02-08 15:11:08 +00:00
Sean Whitton
51b883719b ; Fix some issues in core documentation for cond*. 2026-02-08 15:06:00 +00:00
Eli Zaretskii
f430166f7d ; * doc/lispref/commands.texi (Special Events): Add cross-reference. 2026-02-08 08:34:36 +02:00
Eli Zaretskii
419ac8148f ; Document creation of strings from copies of other strings
* doc/lispref/strings.texi (Creating Strings): Document how to
create a string from N copies of another string.  (Bug#80256)
2026-02-07 14:22:12 +02:00
Eli Zaretskii
16b10d7617 ; Improve indexing in the ELisp manual
* doc/lispref/functions.texi (Function Names):
* doc/lispref/variables.texi (Tips for Defining): Improve
indexing.
2026-02-02 15:24:21 +02:00
Jens Schmidt
e08efecd96 Improve documentation of 'seq-difference'
* doc/lispref/sequences.texi (Sequence Functions):
* lisp/emacs-lisp/seq.el (seq-difference): Clarify the documentation of
'seq-difference'.  (Bug#80257)
2026-01-31 16:08:52 +02:00
Michael Albinus
346f1bda6b Improve connection-local variables documentation.
* doc/emacs/custom.texi (Connection Variables):
* doc/lispref/variables.texi (Applying Connection Local Variables):
Improve documentation.
2026-01-31 13:37:56 +01:00
Jens Schmidt
1652e36c6c ; Fix documentaion of 'seq-intersection'
* doc/lispref/sequences.texi (Sequence Functions):
* lisp/emacs-lisp/seq.el (seq-intersection): Fix documentaion of
'seq-intersection'.  (Bug#80257)
2026-01-31 11:52:27 +02:00
Eli Zaretskii
f081afe23d ; Improve documentation of 'condition-case-unless-debug'
* doc/lispref/control.texi (Handling Errors):
* lisp/subr.el (condition-case-unless-debug): Improve the
documentation of 'condition-case-unless-debug'.  (Bug#80234)
2026-01-31 11:24:53 +02:00
Stéphane Marks
a0748d9791 New function 'truncate-string-pixelwise' (bug#80244)
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.
2026-01-31 11:04:40 +02:00
Eli Zaretskii
eca025334e ; Fix last change
* etc/NEWS:
* doc/lispref/windows.texi (Choosing Window Options):
* doc/emacs/windows.texi (Window Choice): Improve documentation of
'split-window-preferred-direction'.
2026-01-29 22:13:02 +02:00
Stéphane Marks
99abaa70bf Document frame id related commands and tweak a return value (Bug#80192)
* doc/lispref/frames.texi (Input Focus): Document the commands
'select-frame-by-id' and 'undelete-frame-by-id'.
* lisp/frame.el (select-frame-by-id): Clarify return value and
add missing optional argument 'noerror' in sympathy with
'undelete-frame-by-id'.
2026-01-27 10:23:34 +01:00
Basil L. Contovounesios
db413c9da7 Improve animation cache documentation
* doc/lispref/display.texi (Image Cache): Document animation cache
argument that clear-image-cache gained in Emacs 29 (bug#56546,
bug#66221).

* lisp/image.el (image-animate-timeout): Note limitation of
clear-image-cache with ImageMagick.

* src/image.c (Fclear_image_cache): Rename animation-cache argument
to animation-filter and expand its description for clarity.
(struct anim_cache, anim_create_cache, image_prune_animation_caches):
Improve commentary.
(mark_image_cache): Replace stale commentary that referred to
forall_images_in_image_cache with description of mark_image_cache.
[HAVE_IMAGEMAGICK] (struct animation_cache): Mention lack of
clear-image-cache support in commentary.
2026-01-24 19:37:30 +01:00
Daniel Mendler
e8f26d554b Support cons cell for 'line-spacing'
* 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>
2026-01-24 13:32:44 +02:00
João Távora
adb605716f Jsonrpc: don't let remote endpoint requests go unanswered
Previously, 'quit' could cause remote endpoints to never get a
reply and thus sometimes hang.  Ensure we always reply.  Also,
give the application a chance to signal jsonrpc-error with the
served code=32000, meaning "no error".

* doc/lispref/text.texi (JSONRPC Overview): Rework section on
request dispatchers.

* lisp/jsonrpc.el (jsonrpc-connection-receive): Rework.
2026-01-21 12:26:24 +00:00
Mattias Engdegård
b364c42a0e ; * doc/lispref/internals.texi (Garbage Collection): typo 2026-01-21 12:45:44 +01:00
Stefan Monnier
4150c2e22e (garbage-collect-heapsize): New function
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`.
2026-01-20 16:09:22 -05:00
Paul Eggert
bef813eebf Improve doc re integer overflow
* doc/lispref/internals.texi (Module Values, C Integer Types):
Mention that the example assumes Emacs was built with the
GMP library, not with mini-gmp.  Mention stdckdint.h for
integer overflow checking, and mention Emacs integers
for values outside machine range.
2026-01-17 11:12:00 -08:00
Basil L. Contovounesios
6287637ccd Various housekeeping in image.c
* doc/lispref/display.texi (Customizing Bitmaps): Fix grammar.
(XBM Images): Fix reference to incorrect number of properties.
(Multi-Frame Images, Other Image Types): Mention multi-frame WebP
support.

* src/image.c: Don't include pdumper.h; it hasn't been needed since
commit of 2019-05-17 "Clean up and simplify image-type setup".  Fix
some commentary.
(image_pix_container_create_from_bitmap_data): Remove no longer used
frame parameter (bug#80191); this continues from commit of
2022-11-25 "Remove unused parameter from
image_create_pix_container".  All callers updated.
(x_create_xrender_picture, initialize_image_type): Simplify.
(xbm_image_p): Remove redundant conditional branch.  Update
commentary.
2026-01-16 14:03:45 +02:00
Eli Zaretskii
b3870cba77 ; * doc/lispref/display.texi (Progress): Revert inaccurate text. 2026-01-15 08:10:48 +02:00
Eli Zaretskii
0bae6d0e7b ; * doc/lispref/display.texi (Progress): Fix wording and punctuation. 2026-01-15 08:07:59 +02:00
Stefan Monnier
c6b62b42e0 (make-progress-reporter): Tweak wording of CONTEXT doc 2026-01-14 16:25:57 -05:00
Stéphane Marks
9c1da99a85 Optionally inhibit echo area progress reporting (bug#80198)
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.
2026-01-14 16:14:08 -05:00
Stéphane Marks
785059a1f7 Add frame identifiers (bug#80138)
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.
2026-01-13 09:29:44 +01:00
Arash Esbati
037130373b ; * doc/lispref/streams.texi (Output Functions): Fix markup (bug#80167). 2026-01-10 12:18:47 +02:00
Martin Rudalics
d7a219ef77 ; Consistently use "window point" and "buffer point" in Elisp manual
* doc/lispref/windows.texi (Window History, Window Point)
(Window Configurations):
* doc/lispref/processes.texi (Filter Functions): Consistently
use "window point" and "buffer point" without "the" throughout
descriptions.
2026-01-06 09:52:04 +01:00
Martin Rudalics
6841869126 In Elisp manual warn about unpredictable changes of point (Bug#79927)
* doc/lispref/positions.texi (Point): Define "buffer point".
* doc/lispref/windows.texi (Window Point): Say that buffer point
can change in unpredictable ways when windows get selected
(Bug#79927).
2026-01-05 09:29:09 +01:00
RadioNoiseE
48b80a1e2b New function 'window-cursor-info'
* src/window.c (Fwindow_cursor_info): New function.
(syms_of_window): Defsubr it.
* doc/lispref/windows.texi (Window Point): Document it.
* etc/NEWS: Announce new function.  (Bug#80023)
2026-01-03 12:57:28 +02:00
Stéphane Marks
51498a88cf Add frame parameters 'cloned-from' and 'undeleted' (bug#80104)
* lisp/frame.el (clone-frame): Set the frame parameter
'cloned-from'.
(undelete-frame): Set the frame parameter 'undeleted'.
* src/frame.c (syms_of_frame): <Qcloned_from> <Qundeleted>: New
DEFSYM.
(syms_of_frame): Add 'Qcloned_from' and 'Qundeleted' to
'frame_internal_parameters'.
* doc/lispref/frames.texi: Document these frame parameters.
* etc/NEWS: Announce the new frame parameters.
2026-01-03 09:28:03 +01:00
Phil Sainty
bb43055ef0 Support the reusable-frames' value 0 for display-buffer-in-tab'
* lisp/tab-bar.el (tab-bar--reusable-frames): Implement support for the
`reusable-frames' value 0, for better consistency with other buffer
display actions. (bug#80092)
2026-01-03 14:09:28 +13:00
Phil Sainty
99750f9fdf Improve documentation for tab-bar buffer display actions (bug#80092)
* doc/lispref/windows.texi: Document the display actions
`display-buffer-in-tab' and `display-buffer-in-new-tab' and the
associated alist entries `tab-name' and `tab-group'.

* lisp/tab-bar.el (display-buffer-in-tab): Restructure docstring for
clarity.  Describe the `reusable-frames' behaviour first (as if it finds
a frame with a suitable tab then the `tab-name' entry is not used).

(display-buffer-in-new-tab): Use consistent wording.

* lisp/window.el (display-buffer--action-function-custom-type): Add the
display actions as customize choices for user options.

(display-buffer): Document the display actions and alist entries.
2026-01-03 14:09:28 +13:00
Eli Zaretskii
b51c95c1c7 ; Fix documentation of recent treesit changes
* etc/NEWS:
* src/treesit.c (Ftreesit_query_eagerly_compiled_p):
* doc/lispref/parsing.texi (Pattern Matching): Fix documentation
of the recent treesit-related changes.  (Bug#80108)
2026-01-02 14:48:58 +02:00
Yuan Fu
ad500a13e4
Compile queries in treesit-f-l-recompute-features (bug#80108)
The direct cause of the problem in the bug report is that when
user runs treesit-font-lock-recompute-features to add the
emacs-devel feature in c-ts-mode's mode hook, the added query
for emacs-devel aren't compiled.

This change consists of two parts:
1. The immediate fix: validate and compile queries in
treesit-font-lock-recompute-features.
2. To make it more fool-proof, change treesit-font-lock-rules
back to compile the queries and make
treesit--compile-query-with-cache support compiled queries. This
way, as long as the query goes through treesit-font-lock-rules,
it'll be compiled eventually and not cause slow-down. I had to
add some c-level functions, but they're kind of overdue anyway,
so I don't have any problem adding them to the API.

* lisp/treesit.el (treesit--compile-query-with-cache): Support
compiled queries.
(treesit-font-lock-rules): Compile the queries (but not
eagerly).
(treesit-font-lock-recompute-features): Validate and compile
queries.
(treesit-major-mode-setup): Remove call to
treesit-validate-and-compile-font-lock-rules since it's now
called in treesit-font-lock-recompute-features.

* src/treesit.c (Ftreesit_query_eagerly_compiled_p):
(Ftreesit_query_source): New functions.

* doc/lispref/parsing.texi (Pattern Matching): Add manual
entries for the new functions.
2026-01-01 23:21:27 -08:00
Sean Whitton
c31f6adc31 ; Add 2026 to copyright years. 2026-01-01 12:54:34 +00:00
Stefan Monnier
e119514ae8 track-changes.el (track-changes-undo-only): New var
* lisp/emacs-lisp/track-changes.el (track-changes-undo-only): New var.
(track-changes-fetch): Bind it.
(track-changes--state): New slot `undo`.
(track-changes--after): Set it.

* lisp/vc/diff-mode.el (diff--track-changes-function): Use the
new var.

* doc/lispref/text.texi (Tracking changes): Mention
`track-changes-undo-only`.
2025-12-28 22:32:23 -05:00
Mattias Engdegård
8f9c0c1843 Don't use the term 'null' for empty strings
Zero-length strings are just 'empty'; 'null' can be confusing in several
ways.

* lisp/subr.el (split-string, string-lines):
* doc/lispref/strings.texi (Creating Strings):
Change argument names from 'omit-nulls' to 'omit-empty'.
2025-12-28 12:37:37 +01:00
Mattias Engdegård
bdc34b199d Clean up split-string documentation
* doc/lispref/strings.texi (Creating Strings):
* lisp/subr.el (split-string):

Make it clear that the SEPARATORS argument should not match the empty
string, since the behaviour was entirely an artefact of the original
implementation in this case; it makes little sense otherwise.

Clean up the examples for conciseness and do not waste space on
irrelevant details.
2025-12-28 12:37:37 +01:00
Mattias Engdegård
aaa6d6e13b ; * doc/lispref/macros.texi (Indenting Macros): more @xref fix-ups 2025-12-28 12:29:05 +01:00
Sean Whitton
3e282e2da5 ; * doc/lispref/macros.texi (Indenting Macros): Fix xref. 2025-12-28 11:25:30 +00:00
Jonas Bernoulli
2b6161a19f
lisp-indent-local-overrides: New variable 2025-12-27 20:25:05 +01:00