* admin/merge-gnulib (GNULIB_MODULES): Add count-leading-zeros.
* etc/NEWS: Document the change.
* lib/count-leading-zeros.c, lib/count-leading-zeros.h:
* m4/count-leading-zeros.m4: New files, copied from Gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/floatfns.c: Include count-leading-zeros.h.
(Flogb): Do not convert fixnum to float before taking the log,
as the rounding error can cause the answer to be off by 1.
* src/lisp.h (EMACS_UINT_WIDTH): New constant.
* test/src/floatfns-tests.el (logb-extreme-fixnum): New test.
* etc/NEWS: Document this.
* src/bytecode.c (exec_byte_code):
* src/data.c (arithcompare):
Do not lose information when comparing floats to integers.
* test/src/data-tests.el (data-tests-=, data-tests-<)
(data-tests->, data-tests-<=, data-tests->=):
Test this.
* etc/NEWS: Say that `tramp-completion-mode' is obsolete.
* lisp/net/tramp.el (tramp-completion-mode): Make it obsolete.
(tramp-completion-mode-p): Reintroduce the check for 'tab.
* lib-src/emacsclient.c (print_help_and_exit, longopts)
(decode_options, main): Implement new option --suppress-output / -u to
suppress printing of eval-results.
* doc/emacs/misc.texi (emacsclient Options): Document the new
"--suppress-output/-u" options.
* etc/NEWS: Mention the new options.
Change default from 0.8 to 0.8125 so it fits in float without
rounding glitches.
* doc/lispref/hash.texi (Creating Hash):
* doc/lispref/objects.texi (Hash Table Type):
* etc/NEWS:
Document change.
* src/fns.c (make_hash_table, maybe_resize_hash_table)
(Fmake_hash_table): Threshold is now float, not double.
Be consistent about how this is rounded.
* src/lisp.h (struct Lisp_Hash_Table.rehash_threshold):
Change back to float, now that the other code rounds consistently.
(DEFAULT_REHASH_THRESHOLD): Now float 0.8125 instead of double 0.8.
* src/term.c (init_tty): Use 24-bit terminal colors if corresponding
foreground and background functions are present in terminal type
definition.
* src/tparam.h: Define prototype for tigetstr.
* lisp/term/tty-colors.el (tty-color-define): Convert color palette
index to pixel value on 16.7M color terminals.
(tty-color-24bit): New function to convert color palette index to
pixel value on 16.7M color terminals.
(tty-color-desc): Don't approximate colors on 16.7M color terminals.
* lisp/term/xterm.el (xterm-register-default-colors): Define all named
TTY colors on 16.7M color terminals.
* doc/misc/efaq.texi (Colors on a TTY): Add instructions on how to
enable direct color TTY mode.
* etc/NEWS: Mention direct color TTY mode and point to FAQ.
A compatibility digraph characters, such as Dž, are neither upper- nor
lower-case. At the moment however, those are reported as upper-case¹
despite the fact that they change when upper-cased.
Stop checking if a character is upper-case before trying to up-case it
so that title-case characters are handled correctly. This fixes one of
the issues mentioned in bug#24603.
¹ Because they change when converted to lower-case. Notice an asymmetry
in that for a character to be considered lower-case it must not be
upper-case (plus the usual condition of changing when upper-cased).
* src/buffer.h (upcase1): Delete.
(upcase): Change to upcase character unconditionally just like downcase
does it. This is what upcase1 was.
* src/casefiddle.c (casify_object, casify_region): Use upcase instead
of upcase1 and don’t check !uppercasep(x) before calling upcase.
* src/keyboard.c (read_key_sequence): Don’t check if uppercase(x), just
downcase(x) and see if it changed.
* test/src/casefiddle-tests.el (casefiddle-tests--characters,
casefiddle-tests-casing): Update test cases which are now passing.
* test/lisp/progmodes/js-tests.el (js-mode-auto-fill): Test with
`comment-multi-line' both nil and non-nil.
* lisp/newcomment.el (comment-multi-line): Mark safe if it's a
boolean.
* etc/NEWS: Mention that `js-mode' now sets `comment-multi-line'.
Use macros like FOR_EACH_TAIL instead of maybe_quit to
catch list cycles automatically instead of relying on the
user becoming impatient and typing C-g (Bug#25606).
* src/fns.c (Flength, Fmember, Fmemq, Fmemql, Fassq, Fassoc, Frassq)
(Frassoc, Fdelete, Freverse):
Use FOR_EACH_TAIL instead of maybe_quit.
(Fnreverse): Use simple EQ to check for circular list instead
of rarely_quit, as this suffices in this unusual case.
(Fplist_put, Flax_plist_put, Flax_plist_put):
Use FOR_EACH_TAIL_CONS instead of maybe_quit.
(internal_equal): Use FOR_EACH_TAIL_CONS to check lists, instead
of by-hand tail recursion that did not catch cycles.
* src/fns.c (Fsafe_length, Fplist_get):
* src/xdisp.c (display_mode_element):
Use FOR_EACH_TAIL_SAFE instead of by-hand Floyd’s algorithm.
* src/lisp.h (QUIT_COUNT_HEURISTIC): Remove; no longer needed.
(rarely_quit): Simply count toward USHRT_MAX + 1, since the
fancier versions are no longer needed.
(FOR_EACH_TAIL_CONS, FOR_EACH_TAIL_SAFE)
(FOR_EACH_TAIL_INTERNAL): New macros, the last with definiens
mostly taken from FOR_EACH_TAIL.
(FOR_EACH_TAIL): Rewrite in terms of FOR_EACH_TAIL_INTERNAL.
* lisp/emacs-lisp/edebug.el (edebug-max-depth): Add defcustom.
(Bug#24713)
* etc/NEWS: Mention edebug-max-depth.
* doc/lispref/edebug.texi (Checking Whether to Stop): Mention
edebug-max-depth and index it. Add cross-references for
max-lisp-eval-depth and max-specpdl-size.
Co-authored-by: Eli Zaretskii <eliz@gnu.org>
Make the existing if-let and when-let aliases.
* lisp/emacs-lisp/subr-x.el (if-let*, when-let*): New macros. Rewrite
docstrings, incorporating that from let* and the existing if-let.
(if-let, when-let, and-let*): Alias them.
* src/xdisp.c (maximum-scroll-margin): New variable.
* lisp/cus-start.el: Make it customizable.
* etc/NEWS: Mention it.
* doc/emacs/display.texi (Auto Scrolling):
* doc/lispref/windows.texi (Textual Scrolling): Document it.
* src/window.c (window_scroll_pixel_based): Use it instead of hardcoding
division by 4 (Bug #5718).
* lisp/replace.el (list-matching-lines-current-line-face)
(list-matching-lines-jump-to-current-line): New user options.
(occur--orig-line, occur--orig-line-str): New variables.
(occur, occur-engine): Use them.
(occur--final-pos): New variable.
(occur-1): Use it.
(occur-engine): Idem.
Show the current line with 'list-matching-lines-current-line-face'.
Set point on the first matching line after the current one.
* etc/NEWS: Add entry for the new option.
* etc/NEWS: Mention new feature.
* lisp/textmodes/css-mode.el (css-mode-map): New defvar.
(css--mdn-lookup-history): New defvar.
(css-lookup-url-format): New defcustom.
(css--mdn-property-regexp, css--mdn-completion-list): New defconsts.
(css--mdn-after-render, css--mdn-find-symbol, css-lookup-symbol): New
defuns.
* test/lisp/textmodes/css-mode-tests.el (css-mdn-symbol-guessing): New
test.
There’s no longer need to have QUIT stand for a slug of C statements.
Use the more-obvious function-call syntax instead.
Also, use true and false when setting immediate_quit.
These changes should not affect the generated machine code.
* src/lisp.h (QUIT): Remove. All uses replaced by maybe_quit.
* lisp/gnus/gnus-start.el (gnus-save-newsrc-file): Only save
the .newsrc file if the native select method is NNTP
(bug#18198). This avoids problems with invalid IMAP group
names and the like in the .newsrc file.
See Bug#25366.
* src/character.c (blankp): New function for checking Unicode
horizontal whitespace.
* src/regex.c (ISBLANK): Use 'blankp' for non-ASCII horizontal
whitespace.
(BIT_BLANK): New bit for range table.
(re_wctype_to_bit, execute_charset): Use it.
* test/lisp/subr-tests.el (subr-tests--string-match-p--blank): Add
unit test for [:blank:] character class.
* test/src/regex-tests.el (test): Adapt unit test.
* doc/lispref/searching.texi (Char Classes): Document new Unicode
behavior for [:blank:].
