This covers both sequences using Zero-Width-Joiner codepoints and
those without. Bug#39799, I hope.
* .gitignore: Add emoji-zwj.el
* admin/notes/unicode: Add emoji-zwj-sequences.txt and
emoji-sequences.txt references. Describe how to test after updating
to a newer Unicode version.
* admin/unidata/Makefile.in (all): add emoji-zwj.el as a dependency.
(emoji-zwj.el): Add target plus rules for building.
(gen-clean): Add emoji-zwj.el.
* admin/unidata/README: Add emoji-zwj-sequences.txt and
emoji-sequences.txt references.
* admin/unidata/blocks.awk: Force emoji script to be used for certain
codepoints that are used by the Unicode sequences.
* admin/unidata/emoji-sequences.txt: New file.
* admin/unidata/emoji-zwj-sequences.txt: New file.
* admin/unidata/emoji-zwj.awk: New file. Derives
composition-function-table rules from emoji-zwj-sequences.txt, plus
hardcodes some derived manually from emoji-sequences.txt.
* etc/NEWS: Announce change.
* lisp/international/characters.el: Load the generated emoji-zwj.el
* src/Makefile.in (emoji-zwj): New target.
(temacs): Add emoji-zwj as a dependency.
* lisp/url/url-http.el (url-http-handle-authentication): Return t
instead of raising an error, instructing the caller to invoke the
request specific error handler (bug#50511).
The Emoji property describes which codepoints can be displayed as
emoji, but Emoji_Presentation governs which are displayed as emoji by
default.
* admin/notes/unicode: Adjust check-emoji-coverage to look in the
Emoji_Presentation sections of emoji-data.txt
* admin/unidata/blocks.awk: Assign emoji script using the
Emoji_Presentation section.
* lisp/progmodes/bug-reference.el (bug-reference-try-setup-from-vc):
Pass file or directory name in question as the first argument to the
backend's repository-url implementation (bug#50689). Use when-let
and seq-some to flatten nested conditionals.
* lisp/loadup.el (dump-mode): Temporarily bind `lexical-binding` to
nil while dumping. Otherwise, it will be t in Emacs by default
and that is not our intention (yet).
* doc/misc/eww.texi (Advanced): Mention url-retrieve-synchronously
for eww-retrieve-command.
* lisp/net/eww.el (eww-retrieve-command): Add choice 'sync' for
url-retrieve-synchronously.
(eww-retrieve): Use value 'sync' for url-retrieve-synchronously.
(eww-isearch-next-buffer): Let-bind eww-retrieve-command to 'sync'.
* doc/lispref/commands.texi (Recursive Editing): Mention what happens
when throwing a string or any other value to 'exit.
* src/keyboard.c (Frecursive_edit): Document throwing a function
to 'exit (bug#49700).
* lisp/minibuffer.el (minibuffer-quit-recursive-edit): New optional
argument to specify how many levels of recursion to quit.
* src/eval.c (internal_catch): Remove special handling of 'exit
tag (bug#49700).
* src/minibuf.c (Fabort_minibuffers): Use
minibuffer-quit-recursive-edit to quit multiple levels of minibuffer
recursion.
* src/xdisp.c (handle_fontified_prop): Set the frame's
inhibit_clear_image_cache flag around calls to
'fontification-functions', to avoid Lisp triggering the clearing
of image and/or face caches behind redisplay's back. (Big#50571)
* lisp/auth-source.el (auth-source-netrc-create)
(auth-source-secrets-create): Set :save-function only for non
empty passwords.
* lisp/net/tramp.el (tramp-read-passwd): Don't save empty passwords.
* test/lisp/auth-source-tests.el
(auth-source-test-secrets-create-secret): Adapt test.
(auth-source-test-netrc-create-secret): New test.
* doc/misc/eshell.texi (Writing a module, Module testing)
(Directory handling, Key rebinding, Smart scrolling)
(Terminal emulation): Explicitly say that these sections remain to
be written. (Bug#49306)
The reader has an extra 1-char unread buffer that was incorrectly
initialised to 0, which means that the first character read would
always be NUL. As this is often the code that looks for the
lexical-binding cookie, the first loaded source module would be
treated as dynamically bound. During bootstrapping this is loadup.el
and so its local variables got dumped into the global environment.
* src/lread.c (unread_char): Initialise to empty.
(Fload): Initialise here too just in case.
* lisp/erc/erc.el (erc-cmd-OPME, erc-cmd-DEOPME): Add convenience
commands for setting and unsetting the operator status on the current
nick in the current channel. 'erc-cmd-OPME' relies on ChanServ for
obtaining the operator status (see doc string for more details).
* etc/NEWS: Announce the addition of the commands.
* lisp/emacs-lisp/checkdoc.el (checkdoc-recursive-edit): Use command
substitution.
(checkdoc--help-buffer): New variable. Use it instead of hard-coded
string.
