* lisp/faces.el (face-at-point): Say what this function does.
* lisp/thingatpt.el (thing-at-point-face-at-point): Add `face'
type (bug#57087).
(thing-at-point-provider-alist, thing-at-point): Mention it in the
doc strings.
* lisp/outline.el (outline-minor-mode-use-buttons): Change the
default to only use buttons in the *Help* buffer (for now),
because it's too disruptive in other modes. This will probably be
changed again to have some other mechanism to opt in in certain
modes, but it's not clear what that mechanism should look like.
Setting backtrace-on-redisplay-error to non-nil enables the generation of a
Lisp backtrace in buffer *Redisplay-trace* following an error in Lisp called
from redisplay.
* doc/lispref/debugging.texi (Debugging Redisplay): New subsection.
(Error Debugging): Reference to the new subsection.
* etc/NEWS: New entry for the new facility.
* src/eval.c (redisplay_deep_handler): New variable.
(init_eval): Initialize redisplay_deep_handler.
(call_debugger): Don't throw to top-level after calling debug-early
(internal_condition_case_n): "Bind" redisplay_deep_handler to the current
handler.
(backtrace_yet): New boolean variable.
(signal_or_quit): New code section to handle Lisp errors occurring in
redisplay.
(syms_of_eval): New DEFVAR_BOOL backtrace-on-redisplay-error.
* src/keyboard.c (command_loop_1): Set backtrace_yet to false each time around
the loop.
(safe_run_hooks_error): Allow args to be up to four Lisp_Objects long.
(safe_run_hooks_2): New function.
* src/lisp.h (top level): declare as externs backtrace_yet and
safe_run_hooks_2.
* src/xdisp.c (run_window_scroll_functions): Replace a call to
run_hook_with_args_2 with one to safe_run_hooks_2.
* lisp/international/characters.el: Provide acronyms for variation
selectors.
(update-glyphless-char-display): Update display of the full range
of variation selectors.
(glyphless-char-display-control): Update doc string. (Bug#57072)
* doc/lispref/display.texi (Glyphless Chars): Document more
variation selectors.
Copyright-paperwork-exempt: yes
* lisp/net/newst-treeview.el
(newsticker--treeview-list-items-with-age) (newsticker-treeview-update):
Fix issues with changing sort order in virtual feed 'all' (Bug#57045).
* src/ftcrfont.c (ftcrhbfont_begin_hb_font): Always use the standard
position unit value on HarfBuzz 5 and later regardless of whether the
font is bitmap-only or not. (Bug#57066)
* src/xterm.c (handle_one_xevent): Keep track of the device that
set do_help and make it the client pointer so that tooltips show
up under the right pointer.
* lisp/leim/quail/indian.el ("bengali-probhat"): Set KBD-TRANSLATE
and SHOW-LAYOUT flags non-nil. This makes the IM usable with Dvorak
keyboard and also shows more useful help. Reported by Akib Azmain
Turja <akib@disroot.org>.
Extend the set of eligible opcodes for certain peephole
transformations, which then provide further optimisation
opportunities.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-lapcode):
Optimise empty save-current-buffer in the same way as we already
do for save-excursion and save-restriction. This is safe
because (save-current-buffer) is a no-op.
(byte-compile-side-effect-and-error-free-ops): Add list3, list4 and
listN. These were all apparent oversights as list1 and list2 were
already included.
(byte-after-unbind-ops): Add stack-ref, stack-set, discard, list3,
list4 and listN. Stack manipulation is safe because unbind cannot
read or modify stack entries.
* lisp/progmodes/js.el (js--font-lock-keywords-2):
Remove the 'for each' matcher. First, because it was slow
(bug#56682), and second: the 'for each' syntax was only present in
Mozilla's dialect of JavaScript (added in version 1.5), and has
been deprecated for a decade now.
* lisp/nxml/rng-util.el (rng-collapse-space): Make obsolete in favor
of 'string-clean-whitespace'. Update callers.
Suggested by Lars Ingebrigtsen <larsi@gnus.org>.
