From 701c65829d79dbc479fd8c282af3c6faffc21665 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Fri, 20 Oct 2017 22:47:09 -0700 Subject: [PATCH] * etc/NEWS.26: Sync from emacs-26 etc/NEWS. --- etc/NEWS.26 | 291 +++++++++++++++++++++++++++++----------------------- 1 file changed, 164 insertions(+), 127 deletions(-) diff --git a/etc/NEWS.26 b/etc/NEWS.26 index 7f89ef92ec4..97b21f7dd86 100644 --- a/etc/NEWS.26 +++ b/etc/NEWS.26 @@ -1,6 +1,6 @@ GNU Emacs NEWS -- history of user-visible changes. -Copyright (C) 2014-2017 Free Software Foundation, Inc. +Copyright (C) 2016-2017 Free Software Foundation, Inc. See the end of the file for license conditions. Please send Emacs bug reports to bug-gnu-emacs@gnu.org. @@ -9,16 +9,16 @@ If possible, use M-x report-emacs-bug. This file is about changes in Emacs version 26. See file HISTORY for a list of GNU Emacs versions and release dates. -See files NEWS.25, NEWS.24, NEWS.23, NEWS.22, NEWS.21, NEWS.20, -NEWS.19, NEWS.18, and NEWS.1-17 for changes in older Emacs versions. +See files NEWS.25, NEWS.24, ..., NEWS.18, and NEWS.1-17 for changes +in older Emacs versions. You can narrow news to a specific version by calling 'view-emacs-news' with a prefix argument or by typing C-u C-h C-n. Temporary note: -+++ indicates that all necessary documentation updates are complete. - (This means all relevant manuals in doc/ AND lisp doc-strings.) ---- means no change in the manuals is needed. ++++ indicates that all necessary documentation updates have been done. + (This means all the relevant manuals in doc/ AND lisp doc-strings.) +--- means doc strings are updated, and no change in the manuals is needed. When you add a new item, use the appropriate mark if you are sure it applies, @@ -58,7 +58,7 @@ configure option '--disable-libsystemd'. +++ ** A systemd user unit file is provided. Use it in the standard way: -systemctl --user enable emacs +'systemctl --user enable emacs'. (If your Emacs is installed in a non-standard location, you may need to copy the emacs.service file to eg ~/.config/systemd/user/) @@ -107,10 +107,10 @@ requirements. The option makes Emacs abort if a module-related assertion triggers. +++ -** Emacs now supports 24-bit colors on capable text terminals +** Emacs now supports 24-bit colors on capable text terminals. Terminal is automatically initialized to use 24-bit colors if the required capabilities are found in terminfo. See the FAQ node -"Colors on a TTY" for more information. +"(efaq) Colors on a TTY" for more information. +++ ** Emacs now obeys the X resource "scrollBar" at startup. @@ -121,8 +121,8 @@ The effect is similar to that of "toolBar" resource on the tool bar. +++ ** Option 'buffer-offer-save' can be set to new value, 'always'. When - set to 'always', the command `save-some-buffers' will always offer - this buffer for saving. +set to 'always', the command 'save-some-buffers' will always offer +this buffer for saving. ** Security vulnerability related to Enriched Text mode is removed. @@ -176,8 +176,8 @@ explicitly yields. Global variables are shared among all threads, but a 'let' binding is thread-local. Each thread also has its own current buffer and its own match data. -See the chapter "Threads" in the ELisp manual for full documentation -of these facilities. +See the chapter "(elisp) Threads" in the ELisp manual for full +documentation of these facilities. +++ ** The new user variable 'electric-quote-chars' provides a list @@ -224,8 +224,9 @@ frame by evaluating this form: (modify-frame-parameters nil '((inhibit-double-buffering . t))) --- -The group 'wp', whose label was "text", is now deprecated. -Use the new group 'text', which inherits from 'wp', instead. +** The customization group 'wp', whose label was "text", is now +deprecated. Use the new group 'text', which inherits from 'wp', +instead. +++ ** The new function 'call-shell-region' executes a command in an @@ -339,13 +340,13 @@ eliminated, and integer strings work everywhere. ** It is possible to disable attempted recovery on fatal signals. Two new variables support disabling attempts to recover from stack overflow and to avoid automatic auto-save when Emacs is delivered a -fatal signal. 'attempt-stack-overflow-recovery', if set to 'nil', +fatal signal. 'attempt-stack-overflow-recovery', if set to nil, will disable attempts to recover from C stack overflows; Emacs will then crash as with any other fatal signal. -'attempt-orderly-shutdown-on-fatal-signal', if set to 'nil', will +'attempt-orderly-shutdown-on-fatal-signal', if set to nil, will disable attempts to auto-save the session and shut down in an orderly fashion when Emacs receives a fatal signal; instead, Emacs will -terminate immediately. Both variables are non-'nil' by default. +terminate immediately. Both variables are non-nil by default. These variables are for users who would like to avoid the small probability of data corruption due to techniques Emacs uses to recover in these situations. @@ -362,7 +363,7 @@ See the variable 'dir-locals-file-2' for more information. +++ ** Connection-local variables can be used to specify local variables with a value depending on the connected remote server. For details, -see the node "Connection Local Variables" in the ELisp manual. +see the node "(elisp) Connection Local Variables" in the ELisp manual. --- ** International domain names (IDNA) are now encoded via the new @@ -374,6 +375,9 @@ where you can cancel them with the 'c' command. +++ ** 'switch-to-buffer-preserve-window-point' now defaults to t. +Applications that call 'switch-to-buffer' and want to show the buffer at +the position of its point should use 'pop-to-buffer-same-window' in lieu +of 'switch-to-buffer'. +++ ** The new variable 'debugger-stack-frame-as-list' allows displaying @@ -382,7 +386,7 @@ debug.el and edebug.el have been updated to heed to this variable. --- ** Values in call stack frames are now displayed using 'cl-prin1'. -The old behaviour of using 'prin1' can be restored by customizing the +The old behavior of using 'prin1' can be restored by customizing the new option 'debugger-print-function'. +++ @@ -420,17 +424,17 @@ want to reverse the direction of the scroll, customize 'mwheel-flip-direction'. +++ -** Emacsclient has a new option -u/--suppress-output. +** Emacsclient has a new option '-u' / '--suppress-output'. This option suppresses display of return values from the server process. +++ -** Emacsclient has a new option -T/--tramp. +** Emacsclient has a new option '-T' / '--tramp'. This helps with using a local Emacs session as the server for a remote emacsclient. With appropriate setup, one can now set the EDITOR environment variable on a remote machine to emacsclient, and use the local Emacs to edit remote files via Tramp. See the node -"emacsclient Options" in the user manual for the details. +"(emacs) emacsclient Options" in the user manual for the details. --- ** New user option 'dig-program-options' and extended functionality @@ -456,17 +460,17 @@ display of raw bytes from octal to hex. +++ ** You can now provide explicit field numbers in format specifiers. -For example, '(format "%2$s %1$s" "X" "Y")' produces "Y X". +For example, '(format "%2$s %1$s %2$s" "X" "Y")' produces "Y X Y". +++ ** Emacs now supports optional display of line numbers in the buffer. -This is similar to what linum-mode provides, but much faster and +This is similar to what 'linum-mode' provides, but much faster and doesn't usurp the display margin for the line numbers. Customize the buffer-local variable 'display-line-numbers' to activate this optional -display. Alternatively, you can use the `display-line-numbers-mode' -minor mode or the global `global-display-line-numbers-mode'. When -using these modes, customize `display-line-numbers-type' with the same -value as you would use with `display-line-numbers'. +display. Alternatively, you can use the 'display-line-numbers-mode' +minor mode or the global 'global-display-line-numbers-mode'. When +using these modes, customize 'display-line-numbers-type' with the same +value as you would use with 'display-line-numbers'. Line numbers are not displayed at all in minibuffer windows and in tooltips, as they are not useful there. @@ -480,17 +484,20 @@ Lisp programs that need to know how much screen estate is used up for line-number display in a window can use the new function 'line-number-display-width'. -Linum mode and all similar packages are henceforth becoming obsolete. +'linum-mode' and all similar packages are henceforth becoming obsolete. Users and developers are encouraged to switch to this new feature instead. +++ ** emacsclient now accepts command-line options in ALTERNATE_EDITOR -and --alternate-editor. For example, ALTERNATE_EDITOR="emacs -Q -nw". +and '--alternate-editor'. For example, ALTERNATE_EDITOR="emacs -Q -nw". Arguments may be quoted "like this", so that for example an absolute path containing a space may be specified; quote escaping is not supported. +** The new user option 'arabic-shaper-ZWNJ-handling' controls how to +handle ZWNJ in Arabic text rendering. + * Editing Changes in Emacs 26.1 @@ -523,8 +530,8 @@ the end of the window, e.g. "5-17%". The new option +++ ** Two new user options 'list-matching-lines-jump-to-current-line' and -'list-matching-lines-current-line-face' to show highlighted the current -line in *Occur* buffer. +'list-matching-lines-current-line-face' to show the current line +highlighted in *Occur* buffer. +++ ** The 'occur' command can now operate on the region. @@ -587,7 +594,7 @@ different buffer while keeping point, mark, markers, and text properties as intact as possible. +++ -** New commands 'apropos-local-variable' and 'apropos-local-value. +** New commands 'apropos-local-variable' and 'apropos-local-value'. These are buffer-local versions of 'apropos-variable' and 'apropos-value', respectively. They show buffer-local variables whose names and values, respectively, match a given pattern. @@ -607,7 +614,11 @@ state to take effect (making a frame visible, for example). * Changes in Specialized Modes and Packages in Emacs 26.1 --- -** New function `cl-generic-p'. +** Emacs 26.1 comes with Org v9.1.2. +See the file ORG-NEWS for user-visible changes in Org. + +--- +** New function 'cl-generic-p'. ** Dired @@ -623,12 +634,12 @@ remaining directories without more prompts. It gets replaced by the current file name, like ' ? '. +++ -*** A new option 'dired-always-read-filesystem' default to nil. -If non-nil, buffers visiting files are reverted before search them; -for instance, in 'dired-mark-files-containing-regexp' a non-nil value -of this option means the file is revisited in a temporary buffer; -this temporary buffer is the actual buffer searched: the original buffer -visiting the file is not modified. +*** A new option 'dired-always-read-filesystem' defaulting to nil. +If non-nil, buffers visiting files are reverted before they are +searched; for instance, in 'dired-mark-files-containing-regexp' a +non-nil value of this option means the file is revisited in a +temporary buffer; this temporary buffer is the actual buffer searched: +the original buffer visiting the file is not modified. --- *** Users can now customize mouse clicks in Dired in a more flexible way. @@ -659,17 +670,17 @@ keep previous behavior. ** html2text is now marked obsolete. --- -** smerge-refine-regions can refine regions in separate buffers +** smerge-refine-regions can refine regions in separate buffers. --- ** Info menu and index completion uses substring completion by default. -This can be customized via the info-menu category in -completion-category-override. +This can be customized via the 'info-menu' category in +'completion-category-overrides'. +++ ** The ancestor buffer is shown by default in 3-way merges. -A new option ediff-show-ancestor and a new toggle -ediff-toggle-show-ancestor. +A new option 'ediff-show-ancestor' and a new toggle +'ediff-toggle-show-ancestor'. --- ** TeX: Add luatex and xetex as alternatives to pdftex @@ -700,7 +711,7 @@ bound to 'Buffer-menu-unmark-all-buffers'. ** Gnus --- -*** The .newsrc file will now only be saved if the native select +*** The ~/.newsrc file will now only be saved if the native select method is an NNTP select method. +++ @@ -709,9 +720,10 @@ added: 'C-c C-s C-m C-m'. +++ -*** In message-citation-line-format the %Z format is now the time zone name -instead of the numeric form. The %z format continues to be the -numeric form. The new behavior is compatible with format-time-string. +*** In 'message-citation-line-format' the '%Z' format is now the time +zone name instead of the numeric form. The '%z' format continues to +be the numeric form. The new behavior is compatible with +'format-time-string'. ** Ibuffer @@ -778,7 +790,7 @@ whose content matches a regexp; bound to '% g'. --- *** New user option 'comint-move-point-for-matching-input' to control -where to place point after C-c M-r and C-c M-s. +where to place point after 'C-c M-r' and 'C-c M-s'. ** Compilation mode @@ -811,7 +823,7 @@ breakpoint (e.g. with "f" and "o") by customizing the new option 'edebug-sit-on-break'. +++ -*** New customizable option 'edebug-max-depth' +*** New customizable option 'edebug-max-depth'. This allows to enlarge the maximum recursion depth when instrumenting code. @@ -853,7 +865,6 @@ bigger than the current window). avoid accidentally accessing remote links may rebind 'w' and 'u' in 'eww-link-keymap' to it. - ** Ido --- @@ -886,8 +897,8 @@ also available in 'image-mode'. +++ *** A new library for creating and manipulating SVG images has been -added. See the "SVG Images" section in the Lisp reference manual for -details. +added. See the "(elisp) SVG Images" section in the ELisp reference +manual for details. +++ *** New setf-able function to access and set image parameters is @@ -929,10 +940,10 @@ instead of shell command strings. This change affects 'image-dired-cmd-write-exif-data-options', 'image-dired-cmd-read-exif-data-options', and introduces 'image-dired-cmd-pngnq-options', 'image-dired-cmd-pngcrush-options', -'image-dired-cmd-create-standard-thumbnail-options' +'image-dired-cmd-create-standard-thumbnail-options'. --- -*** Recognizes more tools by default, including pngnq-s9 and OptiPNG +*** Recognizes more tools by default, including pngnq-s9 and OptiPNG. --- *** 'find-file' and related commands now work on thumbnails and @@ -971,7 +982,7 @@ there are now top-level domains added all the time. Message will no longer warn about sending emails to top-level domains it hasn't heard about. -*** 'message-beginning-of-line' (bound to C-a) understands folded headers. +*** 'message-beginning-of-line' (bound to 'C-a') understands folded headers. In 'visual-line-mode' it will look for the true beginning of a header while in non-'visual-line-mode' it will move the point to the indented header's value. @@ -981,7 +992,7 @@ header's value. +++ *** The new variable 'package-gnupghome-dir' has been added to control where the GnuPG home directory (used for signature verification) is -located and whether GnuPG's option "--homedir" is used or not. +located and whether GnuPG's option '--homedir' is used or not. --- *** Deleting a package no longer respects 'delete-by-moving-to-trash'. @@ -1063,8 +1074,8 @@ background. +++ ** Emacs now supports character name escape sequences in character and -string literals. The syntax variants \N{character name} and -\N{U+code} are supported. +string literals. The syntax variants '\N{character name}' and +'\N{U+code}' are supported. +++ ** Prog mode has some support for multi-mode indentation. @@ -1076,7 +1087,7 @@ A major mode can provide indentation context for a sub-mode through the 'prog-indentation-context' variable. To support this, modes that provide indentation should use 'prog-widen' instead of 'widen' and 'prog-first-column' instead of a literal zero. See the node -"Mode-Specific Indent" in the ELisp manual for more details. +"(elisp) Mode-Specific Indent" in the ELisp manual for more details. ** ERC @@ -1095,7 +1106,7 @@ domain. *** 'url-retrieve-synchronously' now takes an optional timeout parameter. --- -*** The URL package now support HTTPS over proxies supporting CONNECT. +*** The URL package now supports HTTPS over proxies supporting CONNECT. +++ *** 'url-user-agent' now defaults to 'default', and the User-Agent @@ -1133,17 +1144,29 @@ to a format suitable for reverse lookup zone files. +++ *** Enchant is now supported as a spell-checker. -Enchant is a meta-spell-checker that uses providers -such as Hunspell to do the actual checking. With it, users can use -spell-checkers not directly supported by Emacs, such as Voikko, Hspell -and AppleSpell, more easily share personal word-lists with other -programs, and configure different spelling-checkers for different -languages. (Version 2.1.0 or later of Enchant is required.) +Enchant is a meta-spell-checker that uses providers such as Hunspell +to do the actual checking. With it, users can use spell-checkers not +directly supported by Emacs, such as Voikko, Hspell and AppleSpell, +more easily share personal word-lists with other programs, and +configure different spelling-checkers for different languages. +(Version 2.1.0 or later of Enchant is required.) ** Flymake +++ -*** Emacs no longer prompts the user before killing Flymake processes on exit. +*** Flymake has been completely redesigned + +Flymake now annotates arbitrary buffer regions, not just lines. It +supports arbitrary diagnostic types, not just errors and warnings (see +variable 'flymake-diagnostic-types-alist'). + +It also supports multiple simultaneous backends, meaning that you can +check your buffer from different perspectives (see variable +'flymake-diagnostic-functions'). Backends for Emacs Lisp mode are +provided. + +The old Flymake behavior is preserved in the so-called "legacy +backend", which has been updated to benefit from the new UI features. * New Modes and Packages in Emacs 26.1 @@ -1159,10 +1182,10 @@ languages. (Version 2.1.0 or later of Enchant is required.) mode for *.html files. This mode handles indentation, fontification, and commenting for embedded JavaScript and CSS. -** New mode 'conf-toml-mode' is a sub-mode of conf-mode, specialized - for editing TOML files. +** New mode 'conf-toml-mode' is a sub-mode of 'conf-mode', specialized +for editing TOML files. -** New mode 'conf-desktop-mode' is a sub-mode of conf-unix-mode, +** New mode 'conf-desktop-mode' is a sub-mode of 'conf-unix-mode', specialized for editing freedesktop.org desktop entries. ** New minor mode 'pixel-scroll-mode' provides smooth pixel-level scrolling. @@ -1174,11 +1197,11 @@ editing Less files. * Incompatible Lisp Changes in Emacs 26.1 --- -*** password-data is now a hash-table -so that `password-read' can use any object for the `key' argument. +** 'password-data' is now a hash-table so that 'password-read' can use +any object for the 'key' argument. +++ -*** Command 'dired-mark-extension' now automatically prepends a '.' to the +** Command 'dired-mark-extension' now automatically prepends a '.' to the extension when not present. The new command 'dired-mark-suffix' behaves similarly but it doesn't prepend a '.'. @@ -1202,25 +1225,29 @@ binding syntax as 'and-let*'. --- ** 'C-up', 'C-down', 'C-left' and 'C-right' are now defined in term mode to send the same escape sequences that xterm does. This makes -things like forward-word in readline work. +things like 'forward-word' in readline work. --- ** hideshow mode got four key bindings that are analogous to outline -mode bindings: 'C-c @ C-a', 'C-c @ C-t', 'C-c @ C-d', and 'C-c @ C-e.' +mode bindings: 'C-c @ C-a', 'C-c @ C-t', 'C-c @ C-d', and 'C-c @ C-e'. --- ** Customizable variable 'query-replace-from-to-separator' now doesn't propertize the string value of the separator. -Instead, text properties are added by query-replace-read-from. +Instead, text properties are added by 'query-replace-read-from'. Additionally, the new nil value restores pre-24.5 behavior of not providing replacement pairs via the history. --- ** Some obsolete functions, variables, and faces have been removed: -*** make-variable-frame-local. Variables cannot be frame-local any more. -*** From subr.el: window-dot, set-window-dot, read-input, show-buffer, -eval-current-buffer, string-to-int -*** icomplete-prospects-length. + +*** 'make-variable-frame-local'. Variables cannot be frame-local any more. + +*** From subr.el: 'window-dot', 'set-window-dot', 'read-input', +'show-buffer', 'eval-current-buffer', 'string-to-int'. + +*** 'icomplete-prospects-length'. + *** All the default-FOO variables that hold the default value of the FOO variable. Use 'default-value' and 'setq-default' to access and change FOO, respectively. The exhaustive list of removed variables is: @@ -1238,7 +1265,8 @@ change FOO, respectively. The exhaustive list of removed variables is: 'default-cursor-in-non-selected-windows', 'default-buffer-file-coding-system', 'default-major-mode', and 'default-enable-multibyte-characters'. -*** Many variables obsoleted in 22.1 referring to face symbols + +*** Many variables obsoleted in 22.1 referring to face symbols. +++ ** The variable 'text-quoting-style' is now a customizable option. It @@ -1253,9 +1281,9 @@ now generate less chatter and more-compact diagnostics. The auxiliary function 'check-declare-errmsg' has been removed. +++ -** The regular expression character class [:blank:] now matches +** The regular expression character class '[:blank:]' now matches Unicode horizontal whitespace as defined in the Unicode Technical -Standard #18. If you only want to match space and tab, use [ \t] +Standard #18. If you only want to match space and tab, use '[ \t]' instead. +++ @@ -1277,8 +1305,8 @@ characters: ‘’‛“”‟〞＂＇, unless they are escaped with backslash. +++ ** 'default-file-name-coding-system' now defaults to a coding system -that does not process CRLF. For example, it defaults to utf-8-unix -instead of to utf-8. Before this change, Emacs would sometimes +that does not process CRLF. For example, it defaults to 'utf-8-unix' +instead of to 'utf-8'. Before this change, Emacs would sometimes mishandle file names containing these control characters. +++ @@ -1349,9 +1377,10 @@ documentation and had inherent races that led to security holes. A call like (rename-file C D) that used the old, undocumented behavior can be written as (rename-file C (file-name-as-directory D)), a formulation portable to both older and newer versions of Emacs. -Affected functions include add-name-to-file, copy-directory, -copy-file, format-write-file, gnus-copy-file, make-symbolic-link, -rename-file, thumbs-rename-images, and write-file. +Affected functions include 'add-name-to-file', 'copy-directory', +'copy-file', 'format-write-file', 'gnus-copy-file', +'make-symbolic-link', 'rename-file', 'thumbs-rename-images', and +'write-file'. --- ** The list returned by 'overlays-at' is now in decreasing priority order. @@ -1361,12 +1390,22 @@ non-nil, but the code returned the list in the increasing order of priority instead. Now the code does what the documentation says it should do. ++++ +** 'format' now avoids allocating a new string in more cases. +'format' was previously documented to return a newly-allocated string, +but this documentation was not correct, as (eq x (format x)) returned +t when x was the empty string. 'format' is no longer documented to +return a newly-allocated string, and the implementation now takes +advantage of the doc change to avoid making copies of strings in +common cases like (format "foo") and (format "%s" "foo"). + --- ** The function 'eldoc-message' now accepts a single argument. Programs that called it with multiple arguments before should pass them through 'format' first. Even that is discouraged: for ElDoc support, you should set 'eldoc-documentation-function' instead of calling 'eldoc-message' directly. + * Lisp Changes in Emacs 26.1 @@ -1425,9 +1464,7 @@ range of indentation. ** New optional argument TEXT in 'make-temp-file'. --- -** New function `define-symbol-prop'. - -** Checksum/Hash +** New function 'define-symbol-prop'. +++ ** New function 'secure-hash-algorithms' to list the algorithms that @@ -1509,7 +1546,7 @@ function instead of 'subr-arity'. ** New function 'region-bounds' can be used in the interactive spec to provide region boundaries (for rectangular regions more than one) to an interactively callable function as a single argument instead of -two separate arguments region-beginning and region-end. +two separate arguments 'region-beginning' and 'region-end'. +++ ** 'parse-partial-sexp' state has a new element. Element 10 is @@ -1539,34 +1576,27 @@ compares their numerical values. According to this predicate, --- ** Numeric comparisons and 'logb' no longer return incorrect answers -due to internal rounding errors. For example, (< most-positive-fixnum -(+ 1.0 most-positive-fixnum)) now correctly returns t on 64-bit hosts. +due to internal rounding errors. For example, '(< most-positive-fixnum +(+ 1.0 most-positive-fixnum))' now correctly returns t on 64-bit hosts. --- ** The functions 'ffloor', 'fceiling', 'ftruncate' and 'fround' now accept only floating-point arguments, as per their documentation. Formerly, they quietly accepted integer arguments and sometimes -returned nonsensical answers, e.g., (< N (ffloor N)) could return t. +returned nonsensical answers, e.g., '(< N (ffloor N))' could return t. --- ** On hosts like GNU/Linux x86-64 where a 'long double' fraction contains at least EMACS_INT_WIDTH - 3 bits, 'format' no longer returns incorrect answers due to internal rounding errors when formatting -Emacs integers with %e, %f, or %g conversions. For example, on these -hosts (eql N (string-to-number (format "%.0f" N))) now returns t for -all Emacs integers N. - -+++ -** 'format' is no longer documented to return a newly-allocated string. -This documentation was not correct, as (eq x (format x)) returned t -when x was the empty string. 'format' now takes advantage of the doc -change to avoid making copies of strings in common cases like (format -"foo") and (format "%s" "foo"). +Emacs integers with '%e', '%f', or '%g' conversions. For example, on +these hosts '(eql N (string-to-number (format "%.0f" N)))' now returns +t for all Emacs integers N. --- ** Calls that accept floating-point integers (for use on hosts with limited integer range) now signal an error if arguments are not -integral. For example (decode-char 'ascii 0.5) now signals an error. +integral. For example '(decode-char 'ascii 0.5)' now signals an error. +++ ** The new function 'char-from-name' converts a Unicode name string @@ -1601,7 +1631,7 @@ ABBR is a time zone abbreviation. The affected functions are 'format-time-string', and 'set-time-zone-rule'. +++ -** 'format-time-string' now formats "%q" to the calendar quarter. +** 'format-time-string' now formats '%q' to the calendar quarter. +++ ** New built-in function 'mapcan'. @@ -1678,7 +1708,7 @@ run. frame's outer border. +++ -*** New frame parameters and changed semantics for older ones +*** New frame parameters and changed semantics for older ones: +++ **** 'z-group' positions a frame above or below all others. @@ -1689,8 +1719,8 @@ frame. +++ **** 'parent-frame' makes a frame the child frame of another Emacs -frame. The section "Child Frames" in the Elisp manual describes the -intrinsics of that relationship. +frame. The section "(elisp) Child Frames" in the ELisp manual +describes the intrinsics of that relationship. +++ **** 'delete-before' triggers deletion of one frame before that of @@ -1706,7 +1736,7 @@ frame. +++ **** 'skip-taskbar' removes a frame's icon from the taskbar and has -Alt- skip this frame. +'Alt-' skip this frame. +++ **** 'no-focus-on-map' avoids that a frame gets input focus when mapped. @@ -1775,19 +1805,18 @@ internal border. WINDOW for redisplay. +++ -*** Support for side windows is now official. -The display action function 'display-buffer-in-side-window' will -display its buffer in a side window. Functions for toggling all side -windows on a frame, changing and reversing the layout of side windows -and returning the main (major non-side) window of a frame are -provided. For details consult the section "Side Windows" in the Elisp -manual. +*** Support for side windows is now official. The display action +function 'display-buffer-in-side-window' will display its buffer in a +side window. Functions for toggling all side windows on a frame, +changing and reversing the layout of side windows and returning the +main (major non-side) window of a frame are provided. For details +consult the section "(elisp) Side Windows" in the ELisp manual. +++ *** Support for atomic windows - rectangular compositions of windows treated by 'split-window', 'delete-window' and 'delete-other-windows' like a single live window - is now official. For details consult the -section "Atomic Windows" in the Elisp manual. +section "(elisp) Atomic Windows" in the ELisp manual. +++ *** New 'display-buffer' alist entry 'window-parameters' allows to @@ -1833,30 +1862,38 @@ window's body. +++ *** The semantics of 'mouse-autoselect-window' has changed slightly. -For details see the section "Mouse Window Auto-selection" in the Elisp -manual. +For details see the section "(elisp) Mouse Window Auto-selection" in +the ELisp manual. + +--- +*** 'select-frame-by-name' now may return a frame on another display +if it does not find a suitable one on the current display. --- ** 'tcl-auto-fill-mode' is now declared obsolete. Its functionality can be replicated simply by setting 'comment-auto-fill-only-comments'. -** New pcase pattern 'rx' to match against a rx-style regular expression. +** New pcase pattern 'rx' to match against an rx-style regular expression. For details, see the doc string of 'rx--pcase-macroexpander'. --- ** New functions to set region from secondary selection and vice versa. The new functions 'secondary-selection-to-region' and 'secondary-selection-from-region' let you set the beginning and the -end of the region from those of the secondary selection and vise +end of the region from those of the secondary selection and vice versa. +** New function 'lgstring-remove-glyph' can be used to modify a +gstring returned by the underlying layout engine (e.g. m17n-flt, +uniscribe). + * Changes in Emacs 26.1 on Non-Free Operating Systems +++ ** Intercepting hotkeys on Windows 7 and later now works better. The new keyboard hooking code properly grabs system hotkeys such as -Win-* and Alt-TAB, in a way that Emacs can get at them before the +'Win-*' and 'Alt-TAB', in a way that Emacs can get at them before the system. This makes the 'w32-register-hot-key' functionality work again on all versions of MS-Windows starting with Windows 7. On Windows NT and later you can now register any hotkey combination. (On -- 2.39.2