For discussion, see the following thread:
https://lists.gnu.org/archive/html/emacs-devel/2019-07/msg00528.html
* etc/NEWS: Announce changes in gravatar.el user options.
* lisp/image/gravatar.el (gravatar-cache-ttl): Change :type to
number of seconds without changing the default value and while still
accepting other timestamp formats.
(gravatar-rating): Restrict :type to ratings recognized by Gravatar.
(gravatar-size): Allow nil as a value, in which case Gravatar's
default size is used.
(gravatar-default-image, gravatar-force-default): New user options
controlling the Gravatar query parameters 'default' and
'forcedefault', respectively.
(gravatar-base-url): Use HTTPS.
(gravatar--query-string): New helper function to facilitate testing.
(gravatar-build-url): Use it.
* test/lisp/image/gravatar-tests.el (gravatar-size)
(gravatar-default-image, gravatar-force-default)
(gravatar-build-url): New tests.
It is now called `byte-count-to-string-function', and used instead of
calling `file-size-human-readable' directly where appropriate.
* lisp/files.el (file-size-human-readable-iec): New.
(file-size-function): Rename to byte-count-to-string-function. Better
default value. Eliminate lambda. Better default for custom choice.
Put in group `files'. More descriptive doc string. Move.
(out-of-memory-warning-percentage, warn-maybe-out-of-memory)
(get-free-disk-space):
* lisp/dired.el (dired-number-of-marked-files):
* lisp/url/url-http.el (url-http-simple-after-change-function)
(url-http-content-length-after-change-function):
Use byte-count-to-string-function.
* test/lisp/files-test.el (files-test-file-size-human-readable):
Test file-size-human-readable-iec.
* lisp/calendar/iso8601.el (iso8601--encode-time):
* lisp/calendar/time-date.el (decoded-time-set-defaults):
Refactor out from `iso8601--encode-time', because it's helpful
in other contexts.
* doc/lispref/display.texi (Button Buffer Commands)
(Button Buffer Commands): Document this.
* lisp/button.el (backward-button, forward-button): Accept a
NO-ERROR parameter.
(button-activate): Make it possible to have specific data in the
callback action.
Use it to improve the docstring of the accessor functions.
* doc/misc/cl.texi: Rename menu entry to "CL-Lib".
(Structures): Add ':documentation' and mention ':type' as well,
which we don't completely ignore any more.
* doc/lispref/os.texi (Time Conversion): Document the new
functions that work on decoded time.
(Time Calculations): Document new date/time functions.
* lisp/simple.el (decoded-time-second, decoded-time-minute)
(decoded-time-hour, decoded-time-day, decoded-time-month)
(decoded-time-year, decoded-time-weekday, decoded-time-dst)
(decoded-time-zone): New accessor functions for decoded time values.
* lisp/calendar/time-date.el (date-days-in-month)
(date-ordinal-to-time): New functions.
(decoded-time--alter-month, decoded-time--alter-day)
(decoded-time--alter-second, make-decoded-time): New functions
added to manipulate decoded time structures.
* src/timefns.c (Fdecode_time): Mention the new accessors.
* test/lisp/calendar/time-date-tests.el: New file to test the
decoded time functions and the other new functions.
This patch also moves the internal/external browser logic from
shr to browse-url, where it belongs more naturally.
* doc/misc/eww.texi (Basics): Adjust to browse-url-external-browser.
* doc/misc/gnus.texi (Article Commands): Ditto.
* lisp/gnus/gnus-art.el (gnus-button-url-regexp): Default to
`browse-url-button-regexp', which has taken over the definition
previously enjoyed by this variable.
* lisp/gnus/gnus-sum.el (gnus-summary-browse-url): Adjust usage.
* lisp/net/browse-url.el (browse-url--browser-defcustom-type): New
internal variable...
(browse-url-browser-function, browse-url-external-browser): Used
by these two; the latter of which is a new variable.
(browse-url-botton-regexp): New variable.
(browse-url-button-map): New keymap.
(browse-url-button): New face.
(browse-url-add-buttons): New function to add clickable browse-url
buttons to almost any buffer.
(browse-url-button-open): New command.
(browse-url-button-copy): New command.
* lisp/net/eww.el (eww-browse-with-external-browser)
(eww-follow-link): Adjust usage.
* lisp/net/shr.el (shr-external-browser): Make an obsolete alias
of `browse-url-external-browser'.
(shr-browse-url): Adjust usage.
* src/xterm.c (x_parse_color): Change interpretation of #RGB color
triplets to match CSS rather than X conventions.
* lisp/term/tty-colors.el (tty-color-standard-values): Change
interpretation of #RGB color triplets to match CSS rather than X
conventions. Allow upper-case digits. Fix rgb:R/G/B
interpretation.
* doc/emacs/display.texi (Colors): Specify the convention used for
"#RGB" color triplets.
* test/lisp/tty-colors-tests.el: New file.
* etc/NEWS: Mention the change.
* lisp/autorevert.el (global-auto-revert-ignore-buffer): Allow
this to be a predicate function (bug#25277).
(auto-revert--global-add-current-buffer): Use it.
* lisp/emacs-lisp/package.el (package-check-signature): Don't run
gpg on startup, but just default to `allow-unsigned'.
(package-check-signature): New function to check whether a OpenPGP
configuration is found when `allow-unsigned'.
(package--check-signature-content, package--check-signature)
(package--download-one-archive, package-refresh-contents)
(package-install-from-archive): Use function instead of variable
throughout.
* doc/emacs/package.texi (Package Installation): Document this.
Derived from Ken Brown’s patch (Bug#36502#97).
* doc/lispref/files.texi (Relative File Names):
* etc/NEWS: Document this.
* src/fileio.c (user_homedir): New function.
(Fexpand_file_name, file_name_absolute_p): Use it.
(search_embedded_absfilename): Simplify via file_name_absolute_p.
* test/src/fileio-tests.el (fileio-tests--no-such-user): New test.
* doc/emacs/search.texi (Lax Search): Document
char-fold-symmetric, char-fold-include, char-fold-exclude.
* lisp/char-fold.el (char-fold--default-include)
(char-fold--default-exclude, char-fold--default-symmetric)
(char-fold--previous): New defconsts.
(char-fold-include, char-fold-exclude, char-fold-symmetric):
New defcustoms.
(char-fold-make-table): Use them.
(char-fold-update-table): New function called at top-level.
* test/lisp/char-fold-tests.el (char-fold--test-no-match-exactly)
(char-fold--permutation): New functions.
(char-fold--test-without-customization)
(char-fold--test-with-customization): New tests.
* lisp/char-fold.el (char-fold-make-table): Decompose the
decomposition of each character, adding equivalences to the original
character, until no more decompositions are left.
Say that pdumping cannot redump unless -batch is used. Say that
the traditional unexec dumping method is by default not available,
and is deprecated. Don't call dump files "portable", as dump files
are not any more portable than the Emacs executables themselves.
Just call them "dump files". Similar, prefer "portable dumper"
(since the dumper code is portable) to "portable dumping" (since
the dump file is not). Be more systematic about calling them
"dump files" instead of "dumped images" or whatnot.
* doc/lispref/display.texi (Fringe Size/Pos): Document new
argument PERSISTENT of 'set-window-fringes'.
(Scroll Bars): Document new argument PERSISTENT of
'set-window-scroll-bars'. Mention that HORIZONTAL-TYPE must
be 'bottom' to show a horizontal scroll bar on mini windows.
* lisp/window.el (window-min-pixel-height): For mini windows the
minimum height is one line.
(window--min-size-1): Use value returned by
'window-min-pixel-height' when dealing with mini windows.
(window--resize-mini-window): Try to handle horizontal scroll
bars and size restrictions more accurately.
(window--state-put-2): Handle persistence of scroll bar
settings.
* src/frame.c (make_frame): Allow horizontal scroll bars in
mini windows.
(adjust_frame_size): Drop PIXELWISE argument in
'resize_frame_windows' calls.
* src/window.c (set_window_buffer): Don't override WINDOW's
scroll bar and fringe settings when marked as persistent.
(resize_frame_windows): Drop fourth argument PIXELWISE - SIZE
is always specified in terms of pixels. Try to handle height
of mini windows more accurately.
(grow_mini_window, shrink_mini_window): Use body height of
mini window when calculating expected height change. Take
horizontal scroll bars into account.
(struct saved_window): Two new members to handle persistence
of window fringes and scroll bars.
(Fset_window_configuration, save_window_save): Handle
persistence of fringes and scroll bars.
(set_window_fringes, set_window_scroll_bars): New arguments
PERSISTENT. Make dimension checks more accurate.
(Fset_window_fringes): New argument PERSISTENT.
(Fwindow_fringes, Fwindow_scroll_bars): Add PERSISTENT to
return values.
(Fset_window_scroll_bars): New argument PERSISTENT. In
doc-string mention that 'bottom' must be specified to get a
horizontal scroll bar in mini windows.
(compare_window_configurations): Add checks for persistence of
fringes and scroll bars.
* src/window.h (struct window): New boolean slots
'fringes_persistent' and 'scroll_bars_persistent'.
(WINDOW_HAS_HORIZONTAL_SCROLL_BAR): Allow horizontal scroll bars
for mini windows.
(resize_frame_windows): Remove fourth argument of
'resize_frame_windows' in external declaration.
* src/xdisp.c (resize_mini_window): Use box text height to
tell whether mini window height changed.
(set_horizontal_scroll_bar): Set mini window's horizontal
scroll bar when its type is specified as 'bottom'.
* etc/NEWS: Mention new options for 'set-window-fringes' and
'set-window-scroll-bars'.
* lisp/image.el (image-rotate): Extend with an optional argument
specifying the rotation in degrees (bug#35421).
* doc/lispref/display.texi (Showing Images):
* etc/NEWS: Document the change.
* test/lisp/image-tests.el (image-rotate): New test.
* lisp/gnus/gnus-art.el (article-make-date-combine-with-lapsed) factor
code out into new function, used for providing both combined-lapsed
and combined-local-lapsed.
* lisp/files.el (directory-files-recursively): Take an optional
PREDICATE parameter (bug#28567).
* doc/lispref/files.texi (Contents of Directories): Document it.
