Previously, even passing :buffer nil to make-pipe-process would
create a buffer. Now, if you explicitly call (make-pipe-process
:buffer nil), it will create a pipe process without a buffer,
just like all the other process creation functions.
* src/process.c (Fmake_pipe_process): Check for explicit :buffer
nil and don't make a buffer. (bug#79596)
* doc/lispref/processes.texi (Asynchronous Processes): Update.
* test/src/process-tests.el
(process-test-make-pipe-process-no-buffer): Add test.
The buffer-local-versions of 'window-buffer-change-functions',
'window-size-change-functions',
'window-selection-change-functions' and
'window-state-change-functions' are now run with the respective
buffer temporarily current. Also, the local version of
'window-buffer-change-functions' is run for the buffer removed
from the window too.
* src/window.c (run_window_change_functions_locally)
(run_window_change_functions_globally): New functions replacing
'run_window_change_functions_1'.
(run_window_change_functions): Run the buffer local versions of
these hooks in their respective buffers. Run
'window-buffer-change-functions' for the buffer removed from the
window too.
(Vwindow_buffer_change_functions, Vwindow_size_change_functions)
(Vwindow_selection_change_functions)
(Vwindow_state_change_functions): Mention that the buffer-local
versions are run with their buffer temporarily current.
* doc/lispref/windows.texi (Window Hooks): Mention that
buffer-local-versions of window change functions are run with
their buffer temporarily current. Also say that
'window-buffer-change-functions' will be run for removed buffer
too.
* etc/NEWS: Advertise changes for the buffer-local versions of
window change functions.
* doc/lispref/buffers.texi (Buffer List):
* lisp/subr.el (buffer-match-p):
Document that 'derived-mode' can be a list (bug#79481).
* lisp/wid-edit.el (buffer-predicate): Support a list for 'derived-mode'.
* doc/lispref/processes.texi (Accepting Output):
* src/process.c (Faccept_process_output): Document better the
meaning of the timeout of 'accept-process-output' a,d the fact
that it doesn't always return as soon as some output is available.
See https://lists.gnu.org/archive/html/emacs-devel/2025-08/msg00750.html
for more details.
* doc/lispref/positions.texi (List Motion):
* doc/lispref/modes.texi (Major Mode Conventions, Major Modes)
(Parser-based Font Lock, Parser-based Indentation): Improve
indexing and cross-references to tree-sitter related stuff.
* etc/NEWS: Announce 'let-alist' support for indexing.
* test/lisp/emacs-lisp/let-alist-tests.el (let-alist-numbers):
Add a test for 'let-alist's support for indexing.
* doc/lispref/lists.texi (Association Lists): Document indexing
with 'let-alist'. (Bug#66509)
Command edebug-bounce-to-previous-value uses the previous value
observed while single-stepping or evaluating an expression to
bounce point in the outside current buffer to the buffer
position corresponding to that value.
* lisp/emacs-lisp/edebug.el (edebug-previous-value): Add
variable.
(edebug-compute-previous-result, edebug-eval-expression): Update
it.
(edebug-bounce-to-previous-value): Add command.
(edebug-mode-map): Add keybinding for the new command, replacing
the binding of "P" to edebug-view-outside.
(edebug-mode-menus): Add menu entry for the new command.
* doc/lispref/edebug.texi (Edebug Views): Add documentation.
* test/lisp/emacs-lisp/edebug-resources/edebug-test-code.el
(edebug-test-code-bounce-point): Add test code.
* test/lisp/emacs-lisp/edebug-tests.el
(edebug-tests-bounce-outside-buffer)
(edebug-tests-bounce-outside-point)
(edebug-tests-bounce-outside-mark)
(edebug-tests-bounce-record-outside-environment)
(edebug-tests-should-have-bounced-to): Add infrastructure to
test bounces.
(edebug-tests-check-keymap): Update tests to new key bindings.
(edebug-tests-bounce-point)
(edebug-tests-bounce-to-previous-value)
(edebug-tests-bounce-to-previous-non-position): Add tests.
(edebug-tests-evaluation-of-current-buffer-bug-19611): Clean up
side effects. (Bug#79288)
Only allow string mutation that is certain not to require string data to
be resized and reallocated: writing bytes into a unibyte string, and
changing ASCII to ASCII in a multibyte string.
This ensures that mutation will never transform a unibyte string to
multibyte, that the size of a string in bytes never changes, and that
the byte offsets of characters remain the same. Most importantly, it
removes a long-standing obstacle to reform of string representation and
allow for future performance improvements.
* src/data.c (Faset): Disallow resizing string mutation.
* src/fns.c (clear_string_char_byte_cache):
* src/alloc.c (resize_string_data): Remove.
* test/src/data-tests.el (data-aset-string): New test.
* test/lisp/subr-tests.el (subr--subst-char-in-string):
Skip error cases.
* test/src/alloc-tests.el (aset-nbytes-change):
Remove test that is no longer relevant.
* doc/lispref/strings.texi (Modifying Strings):
* doc/lispref/sequences.texi (Array Functions):
* doc/lispref/text.texi (Substitution): Update manual.
* etc/NEWS: Announce.
* lisp/emacs-lisp/tabulated-list.el (tabulated-list-groups):
Correct format in doc string (bug#79220).
* doc/lispref/modes.texi (Tabulated List Mode):
Correct format in manual.
Currently, a hard-coded set of macros is automatically expanded
during generation of autoloads. To allow user macros to request
such expansion, this implements a new declare form
`autoload-macro' (Bug#78995), with supported value `expand'.
For example, macros which wrap `define-minor-mode', can declare
`(autoload-macro expand)' to request that ;;;###autoload-adorned
calls to the macro are expanded during generation, such that an
autoload for the resulting function is created.
* lisp/emacs-lisp/byte-run.el (byte-run--set-autoload-macro):
Handle autoload-macro declare forms.
(macro-declarations-alist) Add handler for 'autoload-macro
declare forms.
(defmacro, defun):
* lisp/emacs-lisp/cl-generic.el (cl-defgeneric, cl-defun)
(cl-iter-defun, cl-defmacro, cl-defstruct):
* lisp/emacs-lisp/easy-mmode.el
(define-minor-mode, define-globalized-minor-mode, iter-defun):
* lisp/emacs-lisp/inline.el (define-inline):
* lisp/emacs-lisp/pcase.el (pcase-defmacro):
Declare (autoload-macro expand) to request expansion of the
macro during autoload generation.
* lisp/emacs-lisp/loaddefs-gen.el (loaddefs-generate--make-autoload):
Handle the `autoload-macro=expand' property for macros. Load
the ;;;###autoload-containing file if an unknown symbol is
encountered in the car of the following form, to give packages a
chance to define their macros and request expansion. Factor
list of special function-defining macros out as a constant
variable: `loaddefs--defining-macros'.
* doc/lispref/functions.texi (Declare Form):
* doc/lispref/loading.texi (Autoload): Document `autoload-macro'.
* src/thread.c (Fmake_thread): Add new argument (bug#76969).
(thread_set_error): New function, extracted from thread-signal.
(Fthread_buffer_disposition): Add getter.
(Fthread_set_buffer_disposition): And setter.
(thread_check_current_buffer): Check the values of threads'
buffer_disposition.
(thread_all_before_buffer_killed): New function.
(init_threads): Set buffer_disposition to nil for the main thread.
(syms_of_threads): Add new symbols and define the error.
* src/thread.h (thread_state): New field buffer_disposition.
(thread_all_before_buffer_killed): Declare.
* src/buffer.c (Fkill_buffer): Call thread_check_current_buffer
one more time after all hooks and after that call
thread_all_before_buffer_killed.
* src/comp.c (ABI_VERSION): Increase the value.
* test/src/thread-tests.el (thread-buffer-disposition-t)
(thread-buffer-disposition-nil)
(thread-buffer-disposition-silently)
(thread-set-buffer-disposition)
(thread-set-buffer-disposition-main-thread): New tests.
* doc/lispref/threads.texi (Basic Thread Functions): Document
buffer-disposition in make-thread and its getter and setter.
* etc/NEWS: Add entry.
* src/print.c (print_create_variable_mapping): Fix a typo,
`unreadeable-function' to `unreadable-function'. Add `symbols-bare'
as an override for `print-symbols-bare'. (Bug#79161)
* doc/lispref/files.texi (Visiting Functions):
* lisp/files.el (find-file-noselect): Document that NOWARN non-nil
also bypasses the file's last change verification. (Bug#79127)
The new 'borders-respect-alpha-background' frame parameter, when
set to 't', will make window dividers and internal borders
respect the 'alpha-background' frame parameter. This allows
transparent gaps between windows.
* doc/lispref/frames.texi (Font and Color Parameters):
Document the change.
* src/frame.c (frame_parm_table, syms_of_frame)
(gui_set_borders_respect_alpha_background):
* src/frame.h (struct frame): Add frame parameter.
* src/androidfns.c (x_create_frame, android_create_tip_frame)
(android_frame_parm_handlers):
* src/haikufns.c (haiku_create_frame, haiku_create_tip_frame)
(haiku_frame_parm_handlers):
* src/nsfns.m (ns_frame_parm_handlers, x_create_frame):
* src/w32fns.c (x_create_frame, w32_create_tip_frame)
(w32_frame_parm_handlers): Add dummy parameters for backends
that don't support opacity.
* src/pgtkfns.c (pgtk_frame_parm_handlers, x_create_frame)
(pgtk_create_tip_frame):
* src/pgtkterm.c (pgtk_draw_window_divider):
* src/xfns.c (x_create_frame, x_create_tip_frame)
(x_frame_parm_handlers)
* src/xterm.c (x_draw_window_divider)
(x_clear_under_internal_border): Implement parameter on backends
that support opacity.
a44e9139c2 loaddefs-generate--rubric: Note about committing ldefs-bo...
e4908623f2 ; Fix documentation of 'other-window'
5f3cbd62b1 ; * lisp/international/quail.el (quail-insert-kbd-layout)...
47deb38f21 ; face-font-family-alternatives, fixed-pitch: Comments.
dd29b0ab66 Fix Eshell call to 'string-suffix-p' when checking for tr...
cbfc095ed4 * etc/PROBLEMS: Describe how to work around screen reader...
8f00d36b63 (gnus)Scoring Tips: New tip regarding header continuation...
