For discussion, see the following thread:
https://lists.gnu.org/archive/html/emacs-devel/2020-06/msg00117.html
* lisp/apropos.el (apropos-library-button):
* lisp/help-fns.el (help-fns--first-release): Return result of
make-text-button instead of relying on its side effects.
* lisp/ibuf-ext.el (ibuffer-old-saved-filters-warning): Avoid
modifying an immutable string.
(dired-mark--region-use-p, dired-mark--region-beginning)
(dired-mark--region-end): New internal functions.
(dired-mark-if): Use new functions. (Bug#39902)
* lisp/progmodes/project.el (project-switch-commands): Use
characters for keys instead of string for better future
compatibility with 'read-multiple-choice'.
(project-switch-project): Adjust to above change.
This tries to make `font-lock-syntax-table` work correctly even when
it changes the parsing of strings and comments, as was the case in
`font-latex.el`.
We should probably deprecate the use of `font-lock-syntax-table` since
the present fix is still not 100% and since it comes with performance
problems in large files.
(font-lock-set-defaults): Set it.
(font-lock-fontify-syntactically-region): Don't use `syntax-ppss`
when we think that `font-lock-syntax-table` would interfere.
* src/alloc.c (USE_VALGRIND): If not defined, don’t default it to
1 unless ENABLE_CHECKING. The Valgrind hooks bloat the garbage
collector a bit in production, and there’s no need for them these
days if one has a Valgrind suppressions file (which one needs anyway).
(mark_maybe_pointer): Use ‘#if USE_VALGRIND’ instead of ‘#ifdef
USE_VALGRIND’ for consistency with other uses of USE_VALGRIND.
This is in case someone builds with ‘-DENABLE_CHECKING
-DUSE_VALGRIND=0’ in CFLAGS.
* lisp/button.el (make-text-button): Don’t make a copy of
a button’s string label. This reverts the change made in
2020-05-17T05:23:28Z!eggert@cs.ucla.edu, which broke SLY.
Problem reported by João Távora in:
https://lists.gnu.org/r/emacs-devel/2020-06/msg00117.html
However, we’ll need a better fix for this once string
literals become contents, if SLY uses string constants
for text button labels.
* lisp/button.el (make-text-button): Use the copy of BEG
uniformly, instead of in just one place. This fixes a typo
introduced in 2020-05-17T05:23:28Z!eggert@cs.ucla.edu.
Problem reported by João Távora in:
https://lists.gnu.org/r/emacs-devel/2020-06/msg00117.html
Report and original implementation by Steve Purcell
<steve@sanityinc.com>. See also See
https://github.com/joaotavora/eglot/pull/493 for details
* lisp/jsonrpc.el (initialize-instance): Make process in original
buffer.
(Version): Bump to 1.0.12
* src/xfaces.c (color_distance): Don't throw away the low 8 bits of
the colours, and make the function symmetric (bug41544)
(Fcolor_distance): Add caution about this not being a true metric.
* test/src/xfaces-tests.el: New file.
Problem reported by Daniel Colascione (Bug#41680).
* src/lread.c (read1): Check that AREF (tmp, COMPILED_BYTECODE)
is a string before subjecting it to STRING_MULTIBYTE.
Be more consistent about using AREF in the neighborhood,
to help prevent this sort of problem from recurring.
* lisp/progmodes/project.el (project): New custom group.
(project-vc): Use it as parent.
(project-vc-merge-submodules): Tag with Emacs version.
(project-read-file-name-function): Assign to the 'project' group.
(project-list-file): New user option (bug#41600).
(project--write-project-list, project--read-project-list): Use it.
* lisp/language/misc-lang.el (composition-function-table): Reorder
Arabic composition rules in descending order of lookback.
* src/composite.c (syms_of_composite): Document the order of rules
in 'composition-function-table'.
* lisp/progmodes/project.el (project--ensure-file-exists): Remove.
(project--read-project-list): Set 'project--list' to nil when the
project list file doesn't exist.
(project-compile): Add args and interactive spec like in 'compile'.
(project-switch-commands): Bind project-vc-dir to "v",
project-shell to "s", and rebind project-find-regexp from "s" to "r".
* doc/emacs/maintaining.texi (Project File Commands):
Describe project-vc-dir and project-shell.
For discussion of the autoloaded function declaration, see
https://lists.gnu.org/archive/html/emacs-devel/2020-05/msg00910.html.
* lisp/dnd.el (dnd-handle-one-url): It is no longer necessary to
declare the autoloaded function browse-url-select-handler after
ldefs-boot.el was updated.
* lisp/progmodes/elisp-mode.el: Declare xref.el function to silence
byte-compiler.
* lisp/progmodes/xref.el (xref-backend-apropos): Rename this
generic's second arg to PATTERN, to clarify that it should be
handled entirely in the backend, with no pre-processing by the
command.
(xref-find-apropos): Update accordingly, but keep compatibility
with backends in older Emacs versions.
(xref-apropos-regexp): Extract from xref-find-apropos.
* lisp/progmodes/etags.el (xref-backend-apropos): Use it here.
* lisp/progmodes/elisp-mode.el (xref-backend-apropos): And here.
Simplified version of a patch from Pip Cet (Bug#41321#299).
* src/alloc.c (maybe_lisp_pointer): Remove. All uses removed.
(mark_memory): Also look at the pointer offset by ‘lispsym’,
for symbols.
* src/xdisp.c (Fline_pixel_height, Fmove_point_visually): Save and
restore the bidi cache, to avoid inadvertently resetting it by
starting a new iteration through buffer text. This could cause
trouble if these functions are called during a redisplay cycle,
especially while we were processing RTL text.
If automatic character composition triggers GC, and
'garbage-collection-messages' are turned on, we could have the
bidi cache reset while processing RTL text, which would then
consistently crash.
* src/xdisp.c (display_echo_area_1): Protect the bidi cache
against changes inside 'try_window'.
Make the navigation in the occur buffer closer
to the navigation in the compilation buffer.
Add bindings to navigate the occur matches (Bug#39121).
Honor `next-error-highlight' and `next-error-highlight-no-select'
when navigating the occurrences.
* lisp/replace.el (occur-highlight-regexp, occur-highlight-overlay):
New variables.
(occur-1): Set `occur-highlight-regexp' to the searched regexp.
(occur-goto-locus-delete-o, occur--highlight-occurrence): New defuns.
(occur-mode-display-occurrence, occur-mode-goto-occurrence):
Use `occur--highlight-occurrence'.
(occur-mode-map): Bind n to `next-error-no-select'
and p to `previous-error-no-select'
* etc/NEWS (Changes in Specialized Modes and Packages in Emacs 28.1):
Announce this change.
* test/lisp/replace-tests.el (replace-tests-with-highlighted-occurrence):
Add helper macro.
(occur-highlight-occurrence): Add test.
* lisp/tab-bar.el (switch-to-buffer-other-tab): Use
'window-normalize-buffer-to-switch-to' on 'buffer-or-name',
like does 'pop-to-buffer' used by 'switch-to-buffer-other-frame',
instead of raising the error "Invalid buffer" on a non-existent buffer name.
This fixes the use case when, for example, 'find-file-hooks'
fails.
* lisp/files.el (find-alternate-file): If buffer 'oname' exists,
kill it before renaming the new one. (Bug#41359)
* src/sysdep.c (emacs_exec_file): Don't compile this function
anymore on WINDOWSNT, since it is not used there. This function
was the only reason for having 'execve' prototype in ms-w32.h.
* nt/inc/ms-w32.h (execve): Remove prototype and the MinGW64 vs
ming.org mess that it causes.
