Remember the full font description instead of just the family so that
size/style/weight settings are preserved.
* gtkutil.c (xg_get_font) [HAVE_GTK3]: Use the pango font
description to set/get the current font (Bug#28901).
Our minimum GTK3 version is 3.10, the font filter functions appeared
in 3.2.
* gtkutil.c (xg_font_filter) [HAVE_GTK3]: Just check for HAVE_GTK3.
(xg_get_font) [HAVE_GTK3]: Same here.
* src/xftfont.c (xftfont_open): FC_CHARCELL is apparently an alias
for FC_DUAL used in some east Asian fonts (bug#35079). Modelled
after a patch suggested by Kenichi Handa.
* src/w32font.c (w32_to_fc_weight): Support a few more weight
values, for compatibility with the GTK font selection widget
(see gtkutil.c:XG_WEIGHT_TO_SYMBOL). (Bug#24226)
The old code assumed that hexdigit initialization (needed by
non-GCC) could be done in syms_of_character, but that is no longer
true with pdumper. Instead, simplify hexdigit init so that it can
be done statically on all C99 platforms. Problem discovered on
Solaris 10 sparc + Oracle Solaris Studio 12.6.
* src/character.c (hexdigit): Add 1 to every value; all uses
changed. This simplifies the initialization so that it can be
done statically on any C99 compiler. hexdigit is now always const.
(syms_of_character): Omit no-longer-necessary initialization.
* src/character.h (HEXDIGIT_CONST, HEXDIGIT_IS_CONST):
Remove. All uses removed.
* doc/lispref/variables.texi (Watching Variables): Clarify the
documentation of 'add-variable-watcher' and fix markup.
* src/data.c (Fadd_variable_watcher): Clarify the doc string.
(Bug#38205)
* src/xdisp.c (tty_handle_tab_bar_click): Revert the last
change which made this work only in the HAVE_NTGUI build.
This function is needed by any build which supports a mouse
on TTY frames.
* src/floatfns.c (double_integer_scale): Distinguish Inf from NaN.
(rounding_driver): Handle (ceil 0 0.0) and (ceil 0 1.0e+INF).
* test/src/floatfns-tests.el (special-round): Add tests for
weird cases like this.
Avoid crash with (floor 0 0.0)
* src/floatfns.c (rounding_driver): Signal an arithmetic
error if divisor is 0.0 or -0.0, instead of crashing.
Problem reported by Paul Pogonyshev (Bug#38191).
* src/editfns.c (styled_format): When checking for adjacent
%-sequences, use byte position rather than character position.
* test/src/editfns-tests.el (format-properties): Test for fix.
* src/font.c (font_delete_unmatched): Move Vface_ignored_fonts
matching to...
(font_is_ignored): ..Here. New function.
* src/gtkutil.c (xg_font_filter): New function, uses font_is_ignored
to filter fonts.
(xg_get_font): Set GTK font chooser filter to xg_font_filter.
* src/gtkutil.h: Add prototype for font_is_ignored.
This is doable now that we have bignums.
* src/floatfns.c (integer_value): Remove; no longer used.
(rescale_for_division): New function.
(rounding_driver): Use it to divide properly (by using bignums)
even when arguments are float, fixing a double-rounding FIXME.
* src/lisp.h (LOG2_FLT_RADIX): Move here ...
* src/timefns.c (frac_to_double): ... from here.
* test/src/floatfns-tests.el (big-round):
Add a test to catch the double-rounding bug.
This doesn’t alter behavior, and simplifies the next commit.
* src/bignum.c (GMP_NLIMBS_MAX, NLIMBS_LIMIT, emacs_mpz_size)
(emacs_mpz_mul, emacs_mpz_mul_2exp, emacs_mpz_pow_ui): Move here ...
* src/data.c: ... from here.
This doesn’t alter behavior, and simplifies a future commit.
* src/floatfns.c (double_integer_scale): New function,
with body adapted from the old timefns.c.
* src/timefns.c (decode_float_time): Use it.
* src/window.h (WINDOW_BUFFER_LOCAL_VALUE): New macro.
* src/nsterm.m (ns_draw_text_decoration):
* src/w32term.c (w32_draw_glyph_string):
* src/xterm.c (x_draw_glyph_string): Make sure buffer is live
before retrieving underline properties from it (Bug#38038).
* lisp/minibuffer.el (with-minibuffer-selected-window): New macro.
(minibuffer-recenter-top-bottom, minibuffer-scroll-up-command)
(minibuffer-scroll-down-command, minibuffer-scroll-other-window):
(minibuffer-scroll-other-window-down): New commands.
(minibuffer-local-map): Remap recenter/scroll symbols to their
minibuffer wrappers: recenter-top-bottom to minibuffer-recenter-top-bottom.
* src/window.c (Fother_window_for_scrolling): Use 'lambda' value for
MINIBUF arg of Fnext_window, so minibuffer-scroll-other-window and
minibuffer-scroll-other-window-down doesn't try to scroll the
minibuffer window.
* test/src/minibuf-tests.el (test-try-completion-ignore-case):
New test, suggested by Stefan Monnier <monnier@iro.umontreal.ca>.
* src/minibuf.c (Ftry_completion): Don't treat strings that
are identical but for the case as if they were identical for
the purposes of not counting the same string twice. This
fixes case-insensitive completion when all the candidates are
identical but for the letter-case. (Bug#11339)
* src/process.c (Fmake_network_process) [AF_INET6]: Only build ::1
localhost when IPv6 is supported.
(Fnetwork_lookup_address_info) [AF_INET6]: Move check for Qipv6 inside
ifdef, since its definition depends on AF_INET6. Don't return IPv6
addresses when they're not supported.
* test/src/process-tests.el (lookup-family-specification,
lookup-google): Only do IPv6 lookup if IPv6 is supported.
* src/data.c (arith_driver): Streamline fixnum division a bit
more, and add a comment about why overflow is impossible.
This responds to a private comment by Stefan Monnier.
* src/data.c (arith_driver): Remove unnecessary runtime test,
since integer overflow is impossible on division of fixnums,
given that the worst case is MOST_NEGATIVE_FIXNUM / -1 which is
representable as an EMACS_INT (albeit not as a fixnum).
* etc/NEWS: Mention this.
* doc/lispref/errors.texi (Standard Errors):
Document overflow-error, which was formerly undocumented.
It is a range error, not a domain error.
* src/data.c (syms_of_data): overflow-error and (undocumented)
underflow-error are subtypes range-error, not domain-error.
This fixes bugs in timezone-time-from-absolute and in
erc-ctcp-reply-PING.
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.
