Similarly for (expt 0 bignum) and (expt -1 bignum).
The result is always a -1, 0 or 1, so do not signal overflow.
* src/data.c (expt_integer): Do not signal an overflow if
-1 <= X <= 1. Be clearer about when overflow is signaled.
* test/src/floatfns-tests.el (bignum-expt): Test this.
(files.el subr.el): Fix some grammar errors in doc strings and comments.
(frame.c fringe.c image.c xfns.c xterm.c): Fix some English grammar
errors in doc strings.
* src/dired.c (scmp): Comment on (non)applicability to
comparisons of non-ASCII strings case-insensitively.
(file_name_completion): Decode early the file names read from
the directory, and use the decoded names for comparison when
letter-case should be ignored. (Bug#11339)
* lisp/international/mule-diag.el (describe-font): This function
can be used on unloaded fonts, so remove that restriction from the
doc string (bug#16815). Also allow completion over all fonts on
the system.
* src/font.c (Ffont_info): Ditto for the doc string.
Problem reported for dired-view-file (Bug#37950).
* src/fileio.c (Finsert_file_contents): When visiting,
signal an error if the file could not be opened for any reason,
rather than signaling an error only for nonexistent files, fixing
a bug introduced in 2019-09-16T03:17:43!eggert@cs.ucla.edu.
Fix infinite loops in print.c when a circular list is passed
to command-error-default-function or to error-message-string.
* src/print.c (print_error_message):
Use FOR_EACH_TAIL to avoid infloop on circular lists.
(print_object): Use FOR_EACH_TAIL_SAFE, as it uses
Brent’s teleporting tortoise-hare algorithm which is
asymptotically better than the classic tortoise-hare
algorithm that the code wsas using.
* test/src/print-tests.el (print-circle-2): When print-circle
is nil, do not insist on a particular cycle-detection heuristic.
(error-message-string-circular): New test.
Fix infinite loops in keyboard.c when a circular list is
found in a hook, or in help-event-list, or in the argument
of event-convert-list, or in a keymap where a Lucid event
type list is expected, or in a menu or tab spec.
* src/keyboard.c (safe_run_hooks_error, menu_bar_items)
(parse_menu_item, parse_tab_bar_item, parse_tool_bar_item):
Use FOR_EACH_TAIL to avoid infloop on circular lists.
(help_char_p, Fevent_convert_list, lucid_event_type_list_p):
Use FOR_EACH_TAIL_SAFE to avoid infloop on circular lists,
when the action is idempotent so a circular list can be
treated as a noncircular one.
Fix infinite loops in fileio.c when a circular list is the
value of after_insert_file_functions,
buffer-auto-save-file-format, buffer-file-format, or
write-region-annotate-functions.
* src/fileio.c (Finsert_file_contents, build_annotations):
Use FOR_EACH_TAIL to avoid infloop on circular lists.
(build_annotations): Use an EMACS_INT, not an int, to count
nesting level.
* test/src/fileio-tests.el:
(fileio-tests--circular-after-insert-file-functions): New test.
* lisp/emacs-lisp/syntax.el (syntax-ppss): Move the description of
the return value from...
* src/syntax.c (Fparse_partial_sexp): ... here because
`syntax-ppss' is what's called over the place, and jumping through
an indirection to get to the value description is inconvenient.
* src/xfaces.c (merge_face_vectors) : Pass ATTR_FILTER to
merge_face_ref to stop recursion merging in advance when possible.
(merge_named_face) : add more conditions to potentially reduce calls to
merge_face_vectors in more unneeded situations.
* src/xfaces.c (merge_face_vectors) : Add extra parameter ATTR_FILTER
with the same functionality than in merge_named_face. Update all
occurrences.
(merge_named_face): Remove condition to avoid call
`merge_face_vectors`.
The problem with the original fix for bug#5095 is that it drops
the current event, which is a valid character event and not -2.
Thus, the first ESC character sent by the terminal after turning
on focus tracking is lost and we get '[' and 'I' events separately
inserted into the buffer afterwards.
* src/keyboard.c (read_key_sequence): Add key as mock_input and replay
sequence using new keyboard, when the key is not -2.
* src/keyboard.c (help_echo_substitute_command_keys): New function.
(help_echo_echo, parse_menu_item): Use it.
(syms_of_keyboard): Define Qhelp_echo_inhibit_substitution.
* doc/lispref/text.texi (Special Properties), etc/NEWS: Document
the effect of 'help-echo-inhibit-substitution'.
* src/dispnew.c (mode_line_string):
* src/xdisp.c (note_mode_line_or_margin_highlight): Remove
recently-added workarounds for incorrect TTY mouse highlight:
they are no longer needed.
(mark_window_display_accurate_1): Set the header_line_p and
tab_line_p flags of the window's current_matrix if the window
displays these.
(display_mode_line): Set the header_line_p and tab_line_p
flags of the window's desired_matrix if the window displays
these. (Bug#37807)
* src/xdisp.c (tty_get_tab_bar_item): Simplify a bit. This
pacifies --enable-gcc-warnings with x86 GCC 9.2.1 20190827
(Red Hat 9.2.1-1) when combined with -fsanitize=undefined.
* src/lisp.h (list1i, list2i, list3i, list4i):
Accept intmax_t instead of EMACS_INT, and use make_int instead
of make_fixnum. This should help avoid integer-overflow
problems akin to the Time bug (Bug#37795).
Problem reported by Stefan Monnier (Bug#37795).
* src/keyboard.c (make_lispy_position)
(make_scroll_bar_position, make_lispy_event):
* src/xterm.c (x_ewmh_activate_frame):
Use INT_TO_INTEGER to convert Time to a Lisp integer,
since the value might not be a fixnum.
* src/xdisp.c (note_mode_line_or_margin_highlight):
* src/dispnew.c (mode_line_string): Fix mouse highlight on TTY
frames when both header line and tab-line are displayed.
(Bug#37807)
* src/window.c (coordinates_in_window): Fix conditions for
coordinates being on the window's header line when that
window also displays a tab-line. (Bug#37807)
* lisp/progmodes/flymake-proc.el (flymake-proc--find-buffer-for-file):
Doc fix; return value is a buffer, not t.
* lisp/progmodes/ebrowse.el (ebrowse-member-display-p):
Doc fix; return value is the MEMBER argument, not nil.
* lisp/files.el (hack-one-local-variable-eval-safep):
* lisp/play/doctor.el (doctor-nounp, doctor-pronounp):
* lisp/progmodes/flymake-proc.el (flymake-proc--check-include):
* lisp/progmodes/js.el (js--broken-arrow-terminates-line-p):
Doc fix; a non-nil return value is not always t.
* lisp/image.el (image-type-available-p):
* lisp/simple.el (region-active-p):
* lisp/window.el (frame-root-window-p):
* src/buffer.c (Fbuffer_live_p):
* src/image.c (Finit_image_library):
* src/window.c (Fwindow_minibuffer_p):
Doc fix; a non-nil return value is always t.
* doc/lispref/minibuf.texi (Minibuffer Windows): Doc fix.
* src/frame.c (adjust_frame_size): Handle case where only
pseudo windows changed height so the top margin has to be
adjusted.
* src/window.c (Fset_window_configuration): Call
adjust_frame_size with inhibit 4.
* lisp/cus-start.el: Add customization for tab-bar-position.
* src/dispnew.c (syms_of_display): New variable Vtab_bar_position.
(adjust_frame_glyphs_for_window_redisplay): Use it.
src/xdisp.c (face_at_pos): Removed code to that modified
it->start_of_box_run_p and it->face_box_p. This function should not
modify it.
(handle_face_prop): Added code to update it->start_of_box_run_p and
it->face_box_p.
(underlying_face_id): Input IT made CONST.
* src/xdisp.c (append_space_for_newline): Modified to add the space
with the last face also in terminal interface.
(fill_column_indicator_column): Modified to group more conditions.
(extend_face_to_end_of_line): Simplified code in
fill_column_indicator to use the new function.
