Add some hints to the message for byte compiler free & unused variable
warnings, and 'void-variable' errors where the variable has confusable
quote characters in it.
* lisp/help.el (uni-confusables), uni-confusables-regexp): New
constants.
(help-command-error-confusable-suggestions): New function, added to
`command-error-function'.
(help-uni-confusable-suggestions): New function.
* lisp/emacs-lisp/bytecomp.el (byte-compile-variable-ref):
* lisp/emacs-lisp/cconv.el (cconv--analyze-use): Use it.
* lisp/emacs-lisp/lisp-mode.el
(lisp--match-confusable-symbol-character): New function.
(lisp-fdefs): Use it to fontify confusable characters with
font-lock-warning-face when they occur in symbol names.
* doc/lispref/modes.texi (Faces for Font Lock):
* doc/lispref/objects.texi (Basic Char Syntax): Recommend backslash
escaping of confusable characters, and mention new fontification.
* etc/NEWS: Announce the new fontification behavior.
* test/lisp/emacs-lisp/lisp-mode-tests.el (lisp-fontify-confusables):
New test.
Make it possible to select a rectangular region using the mouse.
The standard binding is C-M-mouse-1.
* lisp/mouse.el (mouse-scroll-subr): Add ADJUST argument.
(mouse-drag-region-rectangle): New.
* lisp/rect.el (rectangle--reset-point-crutches): New.
(rectangle--reset-crutches): Use 'rectangle--reset-point-crutches'.
* src/xdisp.c (remember_mouse_glyph, syms_of_xdisp):
Add 'mouse-fine-grained-tracking'.
* doc/lispref/commands.texi (Motion Events):
Document 'mouse-fine-grained-tracking'.
* doc/emacs/frames.texi (Mouse Commands):
* doc/emacs/killing.texi (Rectangles):
* etc/NEWS: Document rectangular selection with the mouse.
* doc/lispref/display.texi (Displaying Messages): Explain the
behavior of using minibuffer-message if the minibuffer is active.
* src/editfns.c (Fmessage_in_echo_area): New function with body
copied from Fmessage.
(Fmessage): Call minibuffer-message in the active minibuffer,
otherwise call Fmessage_in_echo_area.
(message-in-echo-area): New variable.
* lisp/isearch.el (isearch--momentary-message, isearch-message):
* lisp/minibuffer.el (minibuffer-message, minibuffer-completion-help):
Use 'message-in-echo-area' instead of 'message' where necessary.
* lisp/autorevert.el (auto-revert-handler):
* lisp/man.el (Man-bgproc-sentinel):
* lisp/subr.el (do-after-load-evaluation):
Revert recent changes that replaced 'message' with 'minibuffer-message'.
This is not needed anymore since 'message' uses 'minibuffer-message'
in the active minibuffer.
Bug#38218
* src/process.c (Fnetwork_interface_list): Extend argument list to
allow requesting full network info and/or IPv4/IPv6 info.
(network_interface_list) [HAVE_GETIFADDRS]: Use getifaddrs to retrieve
interface IP addresses.
* src/process.h: Update prototype of network_interface_list.
* src/w32.c (g_b_init_get_adapters_addresses): New init flag.
(globals_of_w32): Initialize it.
(GetAdaptersAddresses_Proc): New function typedef.
(get_adapters_addresses): New wrapper function.
(init_winsock): Load htonl and ntohl.
(sys_htonl, sys_ntohl): New wrapper functions.
(network_interface_list): Implement in terms of
get_adapters_addresses.
* nt/inc/sys/socket.h: Add sys_htonl and sys_ntohl prototypes.
* etc/NEWS: Announce IPv4/IPv6 changes in network-interface-list.
* doc/lispref/processes.texi (Misc Network): Document updated arglist
and return values for network-interface-list.
* 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)
* doc/lispref/minibuf.texi (Multiple Queries): Move the
reference to 'read-char-from-minibuffer' from here...
* doc/lispref/commands.texi (Reading One Event): ...to here.
Fix the wording of the description of
'read-char-from-minibuffer'.
This redoes the 2019-11-02T00:24:02!eggert@cs.ucla.edu patch,
updated after consultation with John Sullivan.
Omit printed edition numbers in online manuals while keeping
them in printed manuals. In online manuals the edition
numbers seem to cause more confusion than they cure; e.g.,
https://shop.fsf.org/books/gnu-emacs-manual-18th-edition-v-261
currently advertises "18th edition" even as it points to
https://www.gnu.org/software/emacs/manual/pdf/emacs.pdf which
says "Seventeenth Edition". It is simpler and less confusing
to stick to one version number like "27.0" in online manuals.
For printed manuals people can run, e.g., "texi2any -D
'EDITION Nineteenth'" when generating the 19th printed edition
of the Emacs manual.
* doc/emacs/emacs.texi (EDITION):
* doc/lispintro/emacs-lisp-intro.texi (edition-number, update-date):
* doc/lispref/elisp.texi (VERSION, DATE):
Remove definitions. Instead, let the person printing the book
specify these values, with the default being the online version
which does not have printed edition numbers.
* doc/lispintro/emacs-lisp-intro.texi (titlepage-edition-number):
New flag, for the edition number as it appears on the title page.
* doc/lispref/numbers.texi (Float Basics):
* doc/misc/cl.texi (Implementation Parameters):
* lisp/emacs-lisp/cl-lib.el (cl-most-positive-float)
(cl-least-positive-float)
(cl-least-positive-normalized-float, cl-float-epsilon)
(cl-float-negative-epsilon):
Document IEEE floating point better. Don’t suggest that Emacs
might use some floating-point format other than IEEE format, as
Emacs currently assumes IEEE in several places and there seems
little point in removing those assumptions.
* doc/lispref/minibuf.texi (Yes-or-No Queries): Update the fact
that y-or-n-p uses the minibuffer.
* lisp/subr.el (y-or-n-p-history-variable): New variable.
(y-or-n-p-map): New keymap.
(y-or-n-p-insert-y, y-or-n-p-insert-n, y-or-n-p-insert-other):
New commands.
(y-or-n-p): Rewrite to use read-from-minibuffer and make-composed-keymap
with y-or-n-p-map and query-replace-map.
* lisp/simple.el (goto-history-element)
(next-history-element): Fix quoting of "future history".
* doc/lispref/minibuf.texi (Minibuffer Commands)
(Text from Minibuffer): Add index entry and cross-reference
for "future history". (Bug#38026)
* lisp/emacs-lisp/package.el (package--activated): New variable to
avoid changing value of defcustom 'package-enable-at-startup'.
(package-initialize): Don't set 'package-enable-at-startup'.
(package-initialize, package-activate-all): Set 'package--activated'
instead of 'package-enable-at-startup'.
(package--initialized): Add doc string.
* lisp/startup.el (command-line): Check if 'package--activated' is
non-nil before activating packages.
* doc/lispref/package.texi (Packaging Basics): Update docs.
* lisp/net/network-stream.el
(network-stream-use-client-certificates): New user option.
(open-network-stream): If 'network-stream-use-client-certificates'
is t, and the user hasn't specified :client-certificate, do
certificate lookups via 'auth-source'.
(network-stream-certificate): Only return key and certificate
files that exist.
* doc/lispref/processes.texi (Network): Document new
client-certificate behavior.
* etc/NEWS: Document 'network-stream-use-client-certificates'.
* 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.
* lisp/faces.el (set-face-font):
* doc/emacs/frames.texi (Fonts):
* doc/lispref/display.texi (Face Attributes)
(Attribute Functions): Clarify and correct the documentation
of set-face-font and related descriptions of font
specifications. (Bug#14647)
These seem to cause more confusion than they cure; e.g.,
https://shop.fsf.org/books/gnu-emacs-manual-18th-edition-v-261
currently advertises "18th edition" even as it points to
https://www.gnu.org/software/emacs/manual/pdf/emacs.pdf
which says "Seventeenth Edition". It is simpler and less
confusing to stick to one version number like "26.3". If we
need a separate edition number for each printed manual for
some reason (marketing?) we can put “@ifset printed-edition”
around anything specific to the printed editions.
(as opposed to online PDF copies).
* doc/emacs/emacs.texi (EDITION):
* doc/lispintro/emacs-lisp-intro.texi (edition-number, update-date):
* doc/lispref/elisp.texi (VERSION, DATE):
Remove, and remove uses.
* doc/lispref/os.texi (Time of Day, Time Zone Rules)
(Time Conversion, Time Parsing, Time Calculations):
Document functions that limit the range of time values
due to OS limits (Bug#37974).
'mouse-drag-region' leaves the region active around the dragged text,
so a straight undo did not revert the entire operation. To remedy
this, inhibit undo-in-region when the last command was
mouse-drag-region. (Method suggested by Stefan Monnier.)
* lisp/mouse.el (undo-drag-region): Set the undo-inhibit-region property.
* lisp/simple.el (undo): Inhibit undo-in-region if the last command
had the undo-inhibit-region property set.
* doc/lispref/symbols.texi (Standard Properties):
* doc/lispref/text.texi (Undo): Document undo-inhibit-region.
* etc/NEWS: Announce the property.
* doc/lispref/errors.texi (Standard Errors): Mention the new error.
* lisp/files.el (auto-mode-alist): Add a bunch of image suffixes
to the list (bug#37972) based on the output from "gm convert -list
format" (i.e., graphicsmagick).
* lisp/image-mode.el (image-mode): Rewrite to possibly notify the
user about image-use-external-converter.
(image-mode--setup-mode): Factor out into own function and don't
run under `condition-case' as there's nothing here that should
error.
* lisp/image.el (unknown-image-type): New error.
(image-type): Signal that error so that image-mode can offer
sensible feedback to the user.
* lisp/emacs-lisp/edebug.el (edebug-eval-last-sexp): Make the zero
prefix work analogously to in eval-last-sexp (bug#28895).
(edebug-eval-print-last-sexp): Ditto.
* 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'.
* doc/lispref/edebug.texi (Breakpoints): Document this.
* lisp/emacs-lisp/edebug.el (edebug-disabled-breakpoint): New face
(bug#23472).
(edebug-enabled-breakpoint): Rename.
(edebug--overlay-breakpoints): Use the new face.
(edebug-toggle-disable-breakpoint): New command and keystroke.
