| 1 | GNU Emacs NEWS -- history of user-visible changes. |
| 2 | |
| 3 | Copyright (C) 2010-2014 Free Software Foundation, Inc. |
| 4 | See the end of the file for license conditions. |
| 5 | |
| 6 | Please send Emacs bug reports to bug-gnu-emacs@gnu.org. |
| 7 | If possible, use M-x report-emacs-bug. |
| 8 | |
| 9 | This file is about changes in Emacs version 24. |
| 10 | |
| 11 | See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, |
| 12 | and NEWS.1-17 for changes in older Emacs versions. |
| 13 | |
| 14 | You can narrow news to a specific version by calling `view-emacs-news' |
| 15 | with a prefix argument or by typing C-u C-h C-n. |
| 16 | |
| 17 | Temporary note: |
| 18 | +++ indicates that all necessary documentation updates are complete. |
| 19 | (This means all relevant manuals in doc/ AND lisp doc-strings.) |
| 20 | --- means no change in the manuals is needed. |
| 21 | When you add a new item, use the appropriate mark if you are sure it applies, |
| 22 | otherwise leave it unmarked. |
| 23 | |
| 24 | \f |
| 25 | * Installation Changes in Emacs 24.4 |
| 26 | |
| 27 | --- |
| 28 | ** Emacs can now be compiled with ACL support. |
| 29 | This happens by default if a suitable support library is found at |
| 30 | build time, like libacl on GNU/Linux. To prevent this, use the |
| 31 | configure option `--disable-acl'. See below for related features. |
| 32 | |
| 33 | --- |
| 34 | ** Emacs can now be compiled with file notification support. |
| 35 | This happens by default if a suitable system library is found at |
| 36 | build time. To prevent this, use the configure option |
| 37 | `--without-file-notification'. See below for file-notify features. |
| 38 | This feature is not available for the Nextstep port. |
| 39 | |
| 40 | --- |
| 41 | ** Emacs can now be compiled with zlib support. |
| 42 | This happens by default if zlib is present, which it normally is. |
| 43 | To prevent this, use the configure option `--without-zlib'. |
| 44 | This provides the function `zlib-decompress-region'; see below for details. |
| 45 | |
| 46 | --- |
| 47 | ** The configure option `--without-compress-info' has been generalized, |
| 48 | and renamed to `--without-compress-install'. It now prevents compression |
| 49 | of _any_ files during installation. |
| 50 | |
| 51 | --- |
| 52 | ** The configure option `--with-crt-dir' has been removed. |
| 53 | It is no longer needed, as the crt*.o files are no longer linked specially. |
| 54 | |
| 55 | --- |
| 56 | ** Directories passed to configure option `--enable-locallisppath' are |
| 57 | no longer created during installation. |
| 58 | |
| 59 | --- |
| 60 | ** Emacs for NS (Mac OS X, GNUstep) can be built with ImageMagick support. |
| 61 | This requires pkg-config to be available at build time. |
| 62 | |
| 63 | \f |
| 64 | * Startup Changes in Emacs 24.4 |
| 65 | |
| 66 | +++ |
| 67 | ** When initializing `load-path', an empty element in the EMACSLOADPATH |
| 68 | environment variable (either leading, e.g., ":/foo"; trailing, e.g., |
| 69 | "/foo:"; or embedded, e.g., "/foo::/bar") is replaced with the default |
| 70 | load-path (the one that would have been used if EMACSLOADPATH was unset). |
| 71 | This makes it easier to _extend_ the load-path via EMACSLOADPATH |
| 72 | (previously, EMACSLOADPATH had to specify the complete load-path, |
| 73 | including the defaults). (In older versions of Emacs, an empty element |
| 74 | was replaced by ".", so use an explicit "." now if that is what you want.) |
| 75 | |
| 76 | +++ |
| 77 | ** The -L option, which normally prepends its argument to load-path, |
| 78 | will instead append, if the argument begins with `:' (or `;' on MS Windows; |
| 79 | i.e., `path-separator'). |
| 80 | |
| 81 | +++ |
| 82 | ** If you use either site-load.el or site-init.el to customize the dumped |
| 83 | Emacs executable, any changes to `load-path' that these files make |
| 84 | will no longer be present after dumping. To affect a permanent change |
| 85 | to `load-path', use the `--enable-locallisppath' option of `configure'. |
| 86 | |
| 87 | +++ |
| 88 | ** The user option `initial-buffer-choice' can now specify a function |
| 89 | to set up the initial buffer. |
| 90 | |
| 91 | \f |
| 92 | * Changes in Emacs 24.4 |
| 93 | |
| 94 | +++ |
| 95 | ** New function `zlib-decompress-region', which decompresses gzip- and |
| 96 | zlib-format compressed data using built-in zlib support, if available. |
| 97 | |
| 98 | +++ |
| 99 | ** New option `gnutls-verify-error', if non-nil, means that Emacs |
| 100 | should reject SSL/TLS certificates that GnuTLS determines as invalid. |
| 101 | (This option defaults to nil at present, but this is expected to change |
| 102 | in a future release.) |
| 103 | |
| 104 | +++ |
| 105 | ** Emacs now supports menus on text-mode terminals. |
| 106 | If the terminal supports a mouse, clicking on the menu bar, or on |
| 107 | sensitive portions of the mode line or header line, will drop down the |
| 108 | menu defined at that position. Likewise, clicking C-mouse-2 or |
| 109 | C-mouse-2 or C-mouse-3 on the text area will pop up the menus defined |
| 110 | for those locations. |
| 111 | |
| 112 | If the text terminal does not support a mouse, you can activate the |
| 113 | first menu-bar menu by typing F10, which invokes `menu-bar-open'. |
| 114 | |
| 115 | If you want the previous behavior, whereby F10 invoked `tmm-menubar', |
| 116 | customize the option `tty-menu-open-use-tmm' to a non-nil value. |
| 117 | (Typing M-` always invokes `tmm-menubar', even if `tty-menu-open-use-tmm' |
| 118 | is nil.) |
| 119 | |
| 120 | +++ |
| 121 | ** The *Messages* buffer is created in `messages-buffer-mode', |
| 122 | a new major mode, with read-only status. Any code that might create |
| 123 | the *Messages* buffer should call the function `messages-buffer' to do |
| 124 | so and set up the mode. |
| 125 | |
| 126 | +++ |
| 127 | ** Emacs can now support ACLs (access control lists). |
| 128 | This requires a suitable support library to be found at build time. |
| 129 | On GNU/Linux, the POSIX ACL interface is used via libacl. |
| 130 | On MS-Windows, the NT Security APIs are used to emulate the POSIX interface. |
| 131 | |
| 132 | +++ |
| 133 | *** Emacs preserves the ACL entries of files when backing up. |
| 134 | +++ |
| 135 | *** New functions `file-acl' and `set-file-acl' get and set the ACL |
| 136 | entries of a file. |
| 137 | |
| 138 | ** Multi-monitor support has been added. |
| 139 | |
| 140 | +++ |
| 141 | *** New functions `display-monitor-attributes-list' and |
| 142 | `frame-monitor-attributes' can be used to obtain information about |
| 143 | each physical monitor on multi-monitor setups. |
| 144 | |
| 145 | +++ |
| 146 | *** The functions `display-pixel-width' and `display-pixel-height' now |
| 147 | behave consistently among the platforms: they return the pixel width |
| 148 | or height for all physical monitors associated with the given display |
| 149 | as if they were on X. To get information for each physical |
| 150 | monitor, use the new functions above. Similar notes also apply to |
| 151 | `x-display-pixel-width', `x-display-pixel-height', `display-mm-width', |
| 152 | `display-mm-height', `x-display-mm-width', and `x-display-mm-height'. |
| 153 | |
| 154 | +++ |
| 155 | ** The cursor stops blinking after 10 blinks (by default) on X and NS. |
| 156 | You can change the default by customizing `blink-cursor-blinks'. |
| 157 | |
| 158 | +++ |
| 159 | ** In keymaps where SPC scrolls forward, S-SPC now scrolls backward. |
| 160 | This affects View mode, etc. |
| 161 | |
| 162 | +++ |
| 163 | ** The default value of `make-backup-file-name-function' is no longer nil. |
| 164 | Instead it defaults to a function that does what the nil value used to. |
| 165 | |
| 166 | ** Help changes |
| 167 | |
| 168 | +++ |
| 169 | *** The command `apropos-variable' is renamed to `apropos-user-option'. |
| 170 | `apropos-user-option' shows all user options while `apropos-variable' |
| 171 | shows all variables. When called with a universal prefix argument, |
| 172 | the two commands swap their behaviors. When `apropos-do-all' is |
| 173 | non-nil, they output the same results. |
| 174 | |
| 175 | +++ |
| 176 | *** The key `?' now describes prefix bindings, like `C-h'. |
| 177 | |
| 178 | --- |
| 179 | *** The command `describe-function' has been extended for EIEIO. |
| 180 | Running it on constructors will show a full description of the |
| 181 | generated class. For generic functions, it will show all |
| 182 | implementations together with links to the source. The old commands |
| 183 | `describe-class', `describe-constructor' and `describe-generic' were |
| 184 | removed. |
| 185 | |
| 186 | --- |
| 187 | *** The function `quail-help' is no longer an interactive command. |
| 188 | Use `C-h C-\' (`describe-input-method') instead. |
| 189 | |
| 190 | ** ImageMagick |
| 191 | |
| 192 | +++ |
| 193 | *** ImageMagick images now support the :max-width and :max-height keywords. |
| 194 | |
| 195 | +++ |
| 196 | *** When using `create-image' with image data, you can pass a :format |
| 197 | attribute (via the property-list argument) in order to help |
| 198 | ImageMagick detect the image type. The value should be a MIME |
| 199 | content-type that is found in the new variable `image-format-suffixes'. |
| 200 | |
| 201 | ** Frame and window changes |
| 202 | |
| 203 | +++ |
| 204 | *** The function `window-in-direction' introduced in Emacs 24.1 now |
| 205 | takes additional arguments for specifying a reference point, wrapping |
| 206 | selection around frame borders, and specifying ways to select the |
| 207 | minibuffer window. |
| 208 | |
| 209 | +++ |
| 210 | *** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized', |
| 211 | bound to <f11> and M-<f10>, respectively. |
| 212 | |
| 213 | +++ |
| 214 | *** New hooks `focus-in-hook', `focus-out-hook'. |
| 215 | These are normal hooks run when an Emacs frame gains or loses input focus. |
| 216 | |
| 217 | +++ |
| 218 | *** Emacs can now change frame sizes in units of pixels, rather than |
| 219 | text rows or columns. When maximizing a frame or making it fullscreen, |
| 220 | remaining extra pixels are no longer given to the minibuffer, the rightmost |
| 221 | fringe, or other unusable space, but are distributed among the text |
| 222 | areas of the frame's windows. If the new option `frame-resize-pixelwise' |
| 223 | is non-nil, all frame size changes happen pixelwise and set the |
| 224 | corresponding size hints for the window manager. |
| 225 | |
| 226 | +++ |
| 227 | *** Emacs can now change window sizes in units of pixels. |
| 228 | Mouse-dragging a mode line or window divider now changes the size of |
| 229 | adjacent windows pixelwise. If the new option `window-resize-pixelwise' |
| 230 | is non-nil, functions like `balance-windows-area' and `fit-window-to-buffer' |
| 231 | resize windows pixelwise. Most functions for changing or accessing |
| 232 | window sizes now have an additional argument that allows changes to apply, |
| 233 | or values to be returned, in pixels instead of lines/columns. |
| 234 | |
| 235 | +++ |
| 236 | *** The functions `window-body-height' and `window-body-width' now never |
| 237 | count partially visible lines or columns if called with a nil PIXELWISE |
| 238 | argument. |
| 239 | |
| 240 | +++ |
| 241 | *** Emacs can now draw dividers between adjacent windows. To put |
| 242 | dividers between side-by-side/vertically stacked windows customize the |
| 243 | frame parameters `right-divider-width' and `bottom-divider-width' to |
| 244 | some positive integer. You can drag dividers with the mouse (they show |
| 245 | a corresponding cursor when the mouse hovers over them). You can change |
| 246 | the appearance of dividers by customizing the faces `window-divider', |
| 247 | `window-divider-first-pixel', and `window-divider-last-pixel'. The last |
| 248 | two are useful to provide a 3D effect, or to better distinguish dividers |
| 249 | from surrounding display objects. |
| 250 | |
| 251 | +++ |
| 252 | *** New functions are provided to return the pixel sizes of window |
| 253 | components, namely `window-scroll-bar-width', `window-mode-line-height' |
| 254 | `window-header-line-height', `window-right-divider-width' and |
| 255 | `window-bottom-divider-width'. |
| 256 | |
| 257 | +++ |
| 258 | *** The new function `window-text-pixel-size' returns the size of the |
| 259 | text of a window's buffer in pixels. This allows functions like |
| 260 | `fit-frame-to-buffer' and `fit-window-to-buffer' to accurately fit a |
| 261 | window to its buffer as it will be displayed. |
| 262 | |
| 263 | +++ |
| 264 | *** `fit-window-to-buffer' can now resize windows in both dimensions. |
| 265 | This behavior is controlled by the new option |
| 266 | `fit-window-to-buffer-horizontally'. The new option |
| 267 | `fit-frame-to-buffer' allows to fit the window's frame to its buffer. |
| 268 | |
| 269 | +++ |
| 270 | *** `fit-frame-to-buffer' now fits frames in both dimensions. The new |
| 271 | options `fit-frame-to-buffer-margins' and `fit-frame-to-buffer-sizes' |
| 272 | control the size of the frame and its position on screen. |
| 273 | |
| 274 | --- |
| 275 | *** Temp Buffer Resize Mode can now adjust height and width of windows |
| 276 | and frames. `temp-buffer-resize-mode' is now able to adjust the height |
| 277 | and the width of a window displaying a temporary buffer. The new option |
| 278 | `temp-buffer-max-width' allows to control the width of temporary buffer |
| 279 | windows. Moreover, if the new option `fit-frame-to-buffer' is non-nil |
| 280 | and the buffer appears in the root window of a frame, Temp Buffer Resize |
| 281 | Mode will try to adjust width and/or height of the frame. |
| 282 | |
| 283 | --- |
| 284 | *** `split-window' is now a non-interactive function, not a command. |
| 285 | As a command, it was a special case of `C-x 2' (`split-window-below'), |
| 286 | and as such superfluous. After being reimplemented in Lisp, its |
| 287 | interactive form was mistakenly retained. |
| 288 | |
| 289 | +++ |
| 290 | *** The functions `window-size' and `window-total-size' now have an |
| 291 | optional argument to return a rounded size value. |
| 292 | |
| 293 | +++ |
| 294 | *** `window-state-put' now allows to put a window state into internal |
| 295 | windows too. |
| 296 | |
| 297 | +++ |
| 298 | *** New option `scroll-bar-adjust-thumb-portion'. |
| 299 | Available only on X, this option allows to control over-scrolling |
| 300 | using the scroll bar (i.e. dragging the thumb down even when the end |
| 301 | of the buffer is visible). |
| 302 | |
| 303 | +++ |
| 304 | *** New basic action function `display-buffer-in-previous-window' has |
| 305 | `display-buffer' display a buffer in a window previously showing that |
| 306 | buffer. |
| 307 | |
| 308 | +++ |
| 309 | *** New basic action function `display-buffer-at-bottom' has |
| 310 | `display-buffer' choose or make a window at the bottom of the selected |
| 311 | frame. |
| 312 | |
| 313 | +++ |
| 314 | *** New display action function `display-buffer-no-window' to not |
| 315 | display the buffer in a window. |
| 316 | |
| 317 | +++ |
| 318 | *** New display action alist entry `allow-no-window' to indicate the |
| 319 | caller of `display-buffer' is ready to handle the case of not |
| 320 | displaying the buffer in a window. |
| 321 | |
| 322 | ** Lisp evaluation changes |
| 323 | +++ |
| 324 | *** `eval-defun' on an already defined defcustom calls the :set function, |
| 325 | if there is one. |
| 326 | |
| 327 | +++ |
| 328 | *** The commands `eval-expression' (`M-:'), `eval-last-sexp' (`C-x C-e'), |
| 329 | and `eval-print-last-sexp' (`C-j' in Lisp Interaction mode) can take a |
| 330 | zero prefix argument. This disables truncation of lists in the output, |
| 331 | equivalent to setting `(eval-expression-)print-length' and |
| 332 | `(eval-expression-)print-level' to nil. Additionally, it causes integers |
| 333 | to be printed in other formats (octal, hexadecimal, and character). |
| 334 | |
| 335 | --- |
| 336 | *** New hook `eval-expression-minibuffer-setup-hook' run by |
| 337 | `eval-expression' on entering the minibuffer. |
| 338 | |
| 339 | --- |
| 340 | ** `write-region-inhibit-fsync' now defaults to t in batch mode. |
| 341 | |
| 342 | +++ |
| 343 | ** `cache-long-line-scans' is now non-nil, and renamed to `cache-long-scans', |
| 344 | because it affects caching of paragraph scanning results as well. |
| 345 | There is no reason to set this to nil except for debugging purposes. |
| 346 | |
| 347 | --- |
| 348 | ** The option `set-mark-default-inactive' has been deleted. |
| 349 | This unfinished feature was introduced by accident in Emacs 23.1; |
| 350 | simply disabling Transient Mark mode does the same thing. |
| 351 | |
| 352 | --- |
| 353 | ** The default value of `comment-use-global-state' is now t, |
| 354 | and this variable has been marked obsolete. |
| 355 | |
| 356 | --- |
| 357 | ** `emacs-bzr-version' has been renamed to `emacs-repository-version', |
| 358 | and works for git too, if you fetch the repository notes. |
| 359 | |
| 360 | +++ |
| 361 | ** New option `load-prefer-newer' affects how the `load' function chooses |
| 362 | the file to load. If this is non-nil, then when both .el and .elc |
| 363 | versions of a file exist, and the caller did not explicitly specify |
| 364 | which one to load, then the newer file is loaded. The default, nil, |
| 365 | means to always load the .elc file. |
| 366 | |
| 367 | \f |
| 368 | * Editing Changes in Emacs 24.4 |
| 369 | |
| 370 | ** Indentation changes |
| 371 | |
| 372 | +++ |
| 373 | *** `electric-indent-mode' is now enabled by default. |
| 374 | Typing RET reindents the current line and indents the new line. |
| 375 | `C-j' inserts a newline but does not indent. In some programming modes, |
| 376 | additional characters are electric (eg `{'). |
| 377 | |
| 378 | +++ |
| 379 | *** New buffer-local `electric-indent-local-mode'. |
| 380 | |
| 381 | +++ |
| 382 | *** The behavior of `C-x TAB' (`indent-rigidly') has changed. |
| 383 | When invoked without a prefix argument, it now activates a transient |
| 384 | mode in which typing <left>, <right>, <S-left>, and <S-right> adjusts |
| 385 | the text indentation in the region. Typing any other key resumes |
| 386 | normal editing behavior. |
| 387 | |
| 388 | +++ |
| 389 | *** `tab-stop-list' is now implicitly extended to infinity by repeating |
| 390 | the last step. Its default value is changed to nil, which means a tab |
| 391 | stop every `tab-width' columns. |
| 392 | |
| 393 | +++ |
| 394 | ** New command `cycle-spacing' acts like a smarter `just-one-space'. |
| 395 | When called in succession, it cycles between spacing conventions: |
| 396 | one space, no spaces, original spacing. |
| 397 | |
| 398 | +++ |
| 399 | ** The new function `fill-single-char-nobreak-p' can stop fill from breaking |
| 400 | a line after a one-letter word, which is an error in some typographical |
| 401 | conventions. To use it, add it to the `fill-nobreak-predicate' hook. |
| 402 | |
| 403 | +++ |
| 404 | ** Uniquify is enabled by default, with `post-forward-angle-brackets' style. |
| 405 | |
| 406 | +++ |
| 407 | ** New command `C-x SPC' (`rectangle-mark-mode') makes a rectangular region. |
| 408 | Most commands are still unaware of it, but kill/yank do work on the rectangle. |
| 409 | |
| 410 | +++ |
| 411 | ** New option `visual-order-cursor-movement'. |
| 412 | If this is non-nil, cursor motion with arrow keys will follow the |
| 413 | visual order of characters on the screen: <left> always moves to the |
| 414 | left, <right> always moves to the right, disregarding the surrounding |
| 415 | bidirectional context. |
| 416 | |
| 417 | ** Register changes |
| 418 | |
| 419 | +++ |
| 420 | *** All interactive commands that read a register (`copy-to-register', etc.) |
| 421 | now display a temporary window after `register-preview-delay' seconds |
| 422 | that summarizes existing registers. To disable this, set that option to nil. |
| 423 | Interactive commands that read registers and want to make use of this |
| 424 | should use `register-read-with-preview' to read register names. |
| 425 | |
| 426 | +++ |
| 427 | *** New command `frameset-to-register' bound to `C-x r f', replacing |
| 428 | `frame-configuration-to-register'. It offers similar functionality, |
| 429 | plus enhancements like the ability to restore deleted frames. |
| 430 | (`frame-configuration-to-register' still exists, but no longer has a |
| 431 | key binding.) |
| 432 | |
| 433 | +++ |
| 434 | *** New command `C-x C-k x' (`kmacro-to-register') stores keyboard |
| 435 | macros in registers. |
| 436 | |
| 437 | +++ |
| 438 | ** New command `delete-duplicate-lines'. |
| 439 | This searches the region for identical lines, and removes all but one |
| 440 | copy of each repeated line. The lines need not be sorted. |
| 441 | |
| 442 | +++ |
| 443 | ** `blink-matching-paren' now only highlights the matching open-paren |
| 444 | by default, instead of moving cursor. Set this variable to `jump' to |
| 445 | enable the old behavior. |
| 446 | |
| 447 | \f |
| 448 | * Changes in Specialized Modes and Packages in Emacs 24.4 |
| 449 | |
| 450 | +++ |
| 451 | ** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>. |
| 452 | Affected files: |
| 453 | ~/.emacs.d/timelog replaces ~/.timelog |
| 454 | ~/.emacs.d/vip replaces ~/.vip |
| 455 | ~/.emacs.d/viper replaces ~/.viper |
| 456 | ~/.emacs.d/ido.last replaces ~/.ido.last |
| 457 | ~/.emacs.d/kkcrc replaces ~/.kkcrc |
| 458 | ~/.emacs.d/quickurls replaces ~/.quickurls |
| 459 | ~/.emacs.d/idlwave/ replaces ~/.idlwave/ |
| 460 | ~/.emacs.d/bdfcache.el replaces ~/.bdfcache.el |
| 461 | ~/.emacs.d/places replaces ~/.emacs-places |
| 462 | ~/.emacs.d/shadows replaces ~/.shadows |
| 463 | ~/.emacs.d/shadow_todo replaces ~/.shadow_todo |
| 464 | ~/.emacs.d/strokes replaces ~/.strokes |
| 465 | ~/.emacs.d/notes replaces ~/.notes |
| 466 | ~/.emacs.d/type-break replaces ~/.type-break |
| 467 | Also the following files used by the now obsolete otodo-mode.el: |
| 468 | ~/.emacs.d/todo-do replaces ~/.todo-do |
| 469 | ~/.emacs.d/todo-done replaces ~/.todo-done |
| 470 | ~/.emacs.d/todo-top replaces ~/.todo-top |
| 471 | |
| 472 | ** Backtrace and debugger |
| 473 | |
| 474 | +++ |
| 475 | *** New Lisp debugger command `v' (`debugger-toggle-locals') toggles the |
| 476 | display of local variables of the current stack frame. |
| 477 | |
| 478 | +++ |
| 479 | *** The Lisp debugger's `e' command (`debugger-eval-expression') now includes |
| 480 | the lexical environment when evaluating the code in the context at point |
| 481 | (and so allows you to access lexical variables). |
| 482 | |
| 483 | --- |
| 484 | *** New minor mode `jit-lock-debug-mode' helps you debug code run via JIT Lock. |
| 485 | |
| 486 | --- |
| 487 | ** Battery information can now be retrieved from BSD's `apm' utility. |
| 488 | |
| 489 | --- |
| 490 | ** In the Buffer Menu, `M-s a C-o' shows matches for a regexp in marked buffers. |
| 491 | |
| 492 | ** Calendar and Diary |
| 493 | |
| 494 | --- |
| 495 | *** New faces `calendar-weekday-header', `calendar-weekend-header', |
| 496 | and `calendar-month-header'. |
| 497 | |
| 498 | +++ |
| 499 | *** New option `calendar-day-header-array'. |
| 500 | |
| 501 | +++ |
| 502 | *** New variable `diary-from-outlook-function', used by the command |
| 503 | `diary-from-outlook'. |
| 504 | |
| 505 | --- |
| 506 | *** The variable `calendar-font-lock-keywords' is obsolete. |
| 507 | |
| 508 | ** Calc |
| 509 | |
| 510 | +++ |
| 511 | *** Calc by default now uses the Gregorian calendar for all dates, and |
| 512 | uses January 1, 1 AD as its day number 1. Previously Calc used the |
| 513 | Julian calendar for dates before September 14, 1752, and it used |
| 514 | December 31, 1 BC as its day number 1; the new scheme is more |
| 515 | consistent with Calendar's calendrical system and day numbering. |
| 516 | |
| 517 | +++ |
| 518 | *** The new option `calc-gregorian-switch' lets you configure if |
| 519 | (and when) Calc switches from the Julian to the Gregorian calendar. |
| 520 | |
| 521 | +++ |
| 522 | *** Support for ISO 8601 dates. |
| 523 | |
| 524 | ** CEDET |
| 525 | |
| 526 | *** EDE |
| 527 | |
| 528 | +++ |
| 529 | **** The cpp-root project now supports executing a compile command. |
| 530 | It can be set through the new :compile-command slot or the |
| 531 | buffer-local variable `compile-command'. |
| 532 | |
| 533 | +++ |
| 534 | **** Better selection of include directories for the 'linux' project. |
| 535 | Include directories now support out-of-tree build directories and |
| 536 | target architecture auto-detection. |
| 537 | |
| 538 | --- |
| 539 | *** Semantic |
| 540 | |
| 541 | **** Improved detection of used namespaces in current scope in C++. |
| 542 | |
| 543 | **** Parsing of default values for variables and function arguments in C/C++. |
| 544 | They are also displayed by the summarize feature in the mode line. |
| 545 | |
| 546 | **** Improved parsing of function pointers in C/C++. |
| 547 | This also includes parsing of function pointers as function arguments. |
| 548 | |
| 549 | **** Parsing of C/C++ preprocessor macros that open new scope. |
| 550 | For example, this enables parsing of macros that open new namespaces. |
| 551 | |
| 552 | **** Support for 'this' pointer in inline member functions in C++. |
| 553 | |
| 554 | ** cl-lib |
| 555 | |
| 556 | +++ |
| 557 | *** New macro `cl-tagbody'. |
| 558 | This executes statements while allowing for control transfer to labels. |
| 559 | |
| 560 | +++ |
| 561 | *** letf is now just an alias for cl-letf. |
| 562 | |
| 563 | ** CUA mode |
| 564 | |
| 565 | +++ |
| 566 | *** CUA mode now uses `delete-selection-mode' and `shift-select-mode'. |
| 567 | Hence, you can now enable it independently from those modes, and from |
| 568 | `transient-mark-mode'. |
| 569 | |
| 570 | --- |
| 571 | *** `cua-highlight-region-shift-only' is now obsolete. |
| 572 | You can disable `transient-mark-mode' to get the same result. |
| 573 | |
| 574 | +++ |
| 575 | *** CUA's rectangles can now be used without CUA by calling the command |
| 576 | `cua-rectangle-mark-mode'. |
| 577 | |
| 578 | ** CFEngine mode |
| 579 | |
| 580 | --- |
| 581 | *** Support for completion, ElDoc, and Flycheck has been added. |
| 582 | |
| 583 | --- |
| 584 | *** The current CFEngine syntax is parsed from "cf-promises -s json". |
| 585 | There is a fallback syntax available if you don't have cf-promises or |
| 586 | if your version doesn't support that option. See option `cfengine-cf-promises'. |
| 587 | |
| 588 | --- |
| 589 | ** Delete Selection mode can now be used without Transient Mark mode. |
| 590 | |
| 591 | ** Desktop |
| 592 | |
| 593 | +++ |
| 594 | *** `desktop-save-mode' by default now auto-saves an existing desktop file |
| 595 | after `desktop-auto-save-timeout'. To disable this, customize that option |
| 596 | to nil (or zero). |
| 597 | |
| 598 | +++ |
| 599 | *** Desktop now saves and restores the frame/window configuration. |
| 600 | To disable this, set `desktop-restore-frames' to nil. |
| 601 | See also related options `desktop-restore-reuses-frames', |
| 602 | `desktop-restore-in-current-display', and `desktop-restore-forces-onscreen'. |
| 603 | |
| 604 | +++ |
| 605 | ** New Dired minor mode `dired-hide-details-mode' toggles whether details, |
| 606 | such as file ownership or permissions, are visible in Dired buffers. |
| 607 | See the new options `dired-hide-details-hide-symlink-targets' and |
| 608 | `dired-hide-details-hide-information-lines' for customizing what to hide. |
| 609 | |
| 610 | --- |
| 611 | ** You can enable ElDoc inside the `eval-expression' minibuffer with: |
| 612 | (add-hook 'eval-expression-minibuffer-setup-hook 'eldoc-mode) |
| 613 | The results display in the mode line. |
| 614 | |
| 615 | ** Electric Pair mode |
| 616 | |
| 617 | +++ |
| 618 | *** New option `electric-pair-preserve-balance', enabled by default. |
| 619 | If non-nil, pairing/skipping only kicks in when that help the balance |
| 620 | of parentheses and quotes, i.e. the buffer should end up at least as |
| 621 | balanced as before. |
| 622 | |
| 623 | You can further control this behavior by adjusting the predicates |
| 624 | stored in `electric-pair-inhibit-predicate' and `electric-pair-skip-self'. |
| 625 | |
| 626 | +++ |
| 627 | *** New option `electric-pair-delete-adjacent-pairs', enabled by default. |
| 628 | In `electric-pair-mode', the commands `backward-delete-char' and |
| 629 | `backward-delete-char-untabify' are now bound to electric variants |
| 630 | that delete the closer when invoked between adjacent pairs. |
| 631 | |
| 632 | +++ |
| 633 | *** New option `electric-pair-open-newline-between-pairs', enabled by default. |
| 634 | In `electric-pair-mode', inserting a newline between adjacent pairs |
| 635 | opens an extra newline after point, which is indented if |
| 636 | `electric-indent-mode' is also set. |
| 637 | |
| 638 | +++ |
| 639 | *** New option `electric-pair-skip-whitespace', enabled by default. |
| 640 | This controls if skipping over closing delimiters should jump over any |
| 641 | whitespace slack. Setting it to `chomp' makes it delete this |
| 642 | whitespace. See also the variable `electric-pair-skip-whitespace-chars'. |
| 643 | |
| 644 | --- |
| 645 | *** New variables control the pairing in strings and comments. |
| 646 | You can customize `electric-pair-text-pairs' and |
| 647 | `electric-pair-text-syntax-table' to tweak pairing behavior inside |
| 648 | strings and comments. |
| 649 | |
| 650 | +++ |
| 651 | ** New EPA option `epa-mail-aliases'. |
| 652 | You can set this to a list of email address aliases that `epa-mail-encrypt' |
| 653 | should use to find keys. |
| 654 | |
| 655 | --- |
| 656 | ** New ERC option `erc-accidental-paste-threshold-seconds'. |
| 657 | If set to a number, this can be used to avoid accidentally pasting large |
| 658 | amounts of data into the ERC input. |
| 659 | |
| 660 | +++ |
| 661 | ** New ERT macro `skip-unless' allows skipping ERT tests. |
| 662 | See the ERT manual for details. |
| 663 | |
| 664 | ** Eshell |
| 665 | |
| 666 | +++ |
| 667 | *** `eshell' now supports visual subcommands and options. |
| 668 | Eshell has been able to handle "visual" commands (interactive, |
| 669 | non-line oriented commands such as top that require display |
| 670 | capabilities not provided by eshell) by running them in an Emacs |
| 671 | terminal emulator. See `eshell-visual-commands'. |
| 672 | |
| 673 | This feature has been extended to subcommands and options that make a |
| 674 | usually line-oriented command a visual command. Typical examples are |
| 675 | "git log" and "git <command> --help", which display their output in a |
| 676 | pager by default. See `eshell-visual-subcommands' and |
| 677 | `eshell-visual-options'. |
| 678 | |
| 679 | --- |
| 680 | *** New Eshell-Tramp module. |
| 681 | External su and sudo commands are now the default; the internal, |
| 682 | Tramp-using variants can still be used by enabling the eshell-tramp |
| 683 | module. |
| 684 | |
| 685 | --- |
| 686 | ** New F90 mode option `f90-smart-end-names'. |
| 687 | |
| 688 | ** Icomplete |
| 689 | Icomplete is now more similar to Ido. |
| 690 | |
| 691 | --- |
| 692 | *** Icomplete by default now applies to all forms of minibuffer completion. |
| 693 | The variable `icomplete-with-completion-tables' (now a user option) |
| 694 | controls this. To restore the old behavior, set it back to |
| 695 | '(internal-complete-buffer). |
| 696 | |
| 697 | +++ |
| 698 | *** You can navigate through and select completions using the keys |
| 699 | from `icomplete-minibuffer-map'. |
| 700 | |
| 701 | --- |
| 702 | *** The string that separates potential completions is now a customizable |
| 703 | option (`icomplete-separator'). The default is " | " rather than ",". |
| 704 | |
| 705 | --- |
| 706 | *** New face `icomplete-first-match'; and new options |
| 707 | `icomplete-hide-common-prefix' and `icomplete-show-matches-on-no-input'. |
| 708 | |
| 709 | --- |
| 710 | *** The option `icomplete-show-key-bindings' has been removed. |
| 711 | |
| 712 | ** Ido |
| 713 | |
| 714 | +++ |
| 715 | *** An Ido user manual is now included. |
| 716 | |
| 717 | --- |
| 718 | *** The option `ido-use-virtual-buffers' can now take the value `auto'. |
| 719 | This means to use virtual buffers if the current ido input does not match |
| 720 | an existing buffer. |
| 721 | |
| 722 | --- |
| 723 | *** The variable `ido-decorations' can optionally have two new elements, |
| 724 | which are the brackets to use around the sole remaining completion. |
| 725 | |
| 726 | ** Image mode |
| 727 | |
| 728 | +++ |
| 729 | *** New commands `n' (`image-next-file') and `p' (`image-previous-file') |
| 730 | visit the next image file and the previous image file in the same |
| 731 | directory, respectively. |
| 732 | |
| 733 | +++ |
| 734 | *** New commands to show specific frames of multi-frame images. |
| 735 | `f' (`image-next-frame') and `b' (`image-previous-frame') visit the |
| 736 | next or previous frame. `F' (`image-goto-frame') shows a specific frame. |
| 737 | |
| 738 | +++ |
| 739 | *** New commands to speed up, slow down, or reverse animation. |
| 740 | `a +' (`image-increase-speed') and `a -' (`image-decrease-speed') to |
| 741 | speed up and slow down the animation. `a r' (`image-reverse-speed') |
| 742 | to reverse it and `a 0' (`image-reset-speed') to reset it. |
| 743 | |
| 744 | --- |
| 745 | *** The command `image-mode-fit-frame' deletes other windows. |
| 746 | When toggling, it restores the frame's previous window configuration. |
| 747 | It also has an optional frame argument, which can be used by Lisp |
| 748 | callers to fit the image to a frame other than the selected frame. |
| 749 | |
| 750 | ** Hi-Lock |
| 751 | |
| 752 | +++ |
| 753 | *** New global command `M-s h .' (`highlight-symbol-at-point') highlights |
| 754 | the symbol found near point. |
| 755 | |
| 756 | +++ |
| 757 | *** New option `hi-lock-auto-select-face'. When non-nil, hi-lock commands |
| 758 | will cycle through faces in `hi-lock-face-defaults' without prompting. |
| 759 | |
| 760 | --- |
| 761 | ** New Imenu option `imenu-generic-skip-comments-and-strings'. |
| 762 | |
| 763 | ** Info |
| 764 | |
| 765 | --- |
| 766 | *** New Info face `info-index-match', used to highlight matches in index |
| 767 | entries displayed by `Info-index-next', `Info-virtual-index' and |
| 768 | `info-apropos'. |
| 769 | |
| 770 | --- |
| 771 | *** The Info-edit command is obsolete. Editing Info nodes by hand |
| 772 | has not been relevant for some time. |
| 773 | |
| 774 | ** JS Mode |
| 775 | |
| 776 | --- |
| 777 | *** New option `js-switch-indent-offset'. |
| 778 | |
| 779 | --- |
| 780 | *** Better indentation of multiple-variable declarations. |
| 781 | If a declaration spans several lines, variables on the following lines |
| 782 | are lined up to the first one. |
| 783 | |
| 784 | --- |
| 785 | *** Recognition and better indentation of continuations in array comprehensions. |
| 786 | |
| 787 | +++ |
| 788 | ** MH-E has been updated to version 8.5 - see separate MH-E-NEWS file. |
| 789 | |
| 790 | +++ |
| 791 | ** Octave mode |
| 792 | |
| 793 | *** Font locking for Texinfo comments and new keywords. |
| 794 | |
| 795 | *** Completion in Octave file buffers. |
| 796 | |
| 797 | *** ElDoc support. |
| 798 | |
| 799 | *** Jump to definition. |
| 800 | |
| 801 | *** Documentation lookup/search. |
| 802 | |
| 803 | +++ |
| 804 | ** OPascal mode is the new name for Delphi mode |
| 805 | |
| 806 | --- |
| 807 | *** All delphi-* variables and functions have been renamed to opascal-*. |
| 808 | Obsolete aliases exist for those likely to have been used externally. |
| 809 | |
| 810 | --- |
| 811 | *** The option `delphi-newline-always-indents' has been removed. |
| 812 | Use `electric-indent-mode' instead. |
| 813 | |
| 814 | --- |
| 815 | *** The TAB key runs the standard `indent-for-tab-command', not `delphi-tab'. |
| 816 | |
| 817 | ** Package |
| 818 | |
| 819 | +++ |
| 820 | *** In the `list-packages' buffer, you can use `f' (`package-menu-filter') |
| 821 | to filter the list of packages by a keyword. |
| 822 | |
| 823 | +++ |
| 824 | *** In the `describe-package' buffer, there are now buttons listing the |
| 825 | keywords related to the package. Click on a button to see other packages |
| 826 | related to that keyword. |
| 827 | |
| 828 | --- |
| 829 | *** The format of `archive-contents' files, generated by package |
| 830 | repositories, has changed to allow a new (fifth) element in the data |
| 831 | vectors, containing an associative list with extra properties. |
| 832 | (For example, `describe-package' uses the `:url' extra property to |
| 833 | display a "Homepage" header.) |
| 834 | |
| 835 | --- |
| 836 | ** In Prolog mode, `prolog-use-smie' has been removed, |
| 837 | along with the non-SMIE indentation code. |
| 838 | |
| 839 | ** Remember |
| 840 | |
| 841 | +++ |
| 842 | *** The new command `remember-notes' creates a buffer that is saved on exit. |
| 843 | You can use it as a more permanent *scratch* buffer. |
| 844 | |
| 845 | +++ |
| 846 | *** Remember can now store notes in separate files. |
| 847 | To use this, add `remember-store-in-files' to the `remember-handler-functions' |
| 848 | option. The files are saved in `remember-data-directory' using |
| 849 | names specified by `remember-directory-file-name-format'. |
| 850 | |
| 851 | ** Rmail |
| 852 | |
| 853 | +++ |
| 854 | *** Customize `rmail-mbox-format' to influence some minor aspects of |
| 855 | how Rmail displays non-MIME messages. |
| 856 | |
| 857 | --- |
| 858 | *** The `unrmail' command now converts from BABYL to mboxrd format, |
| 859 | rather than mboxo. Customize `unrmail-mbox-format' to change this. |
| 860 | |
| 861 | ** Ruby mode |
| 862 | |
| 863 | --- |
| 864 | *** Improved syntax highlighting and indentation. |
| 865 | |
| 866 | --- |
| 867 | *** New `electric-indent-mode' integration. |
| 868 | |
| 869 | --- |
| 870 | *** New option `ruby-encoding-magic-comment-style'. |
| 871 | |
| 872 | --- |
| 873 | *** New option `ruby-custom-encoding-magic-comment-template'. |
| 874 | |
| 875 | --- |
| 876 | *** New option `ruby-align-to-stmt-keywords'. |
| 877 | |
| 878 | --- |
| 879 | *** New option `ruby-align-chained-calls'. |
| 880 | |
| 881 | --- |
| 882 | *** More Ruby file types have been added to `auto-mode-alist'. |
| 883 | |
| 884 | ** Search and Replace |
| 885 | |
| 886 | +++ |
| 887 | *** New global command `M-s .' (`isearch-forward-symbol-at-point') |
| 888 | starts a symbol (identifier) incremental search forward with the |
| 889 | symbol found near point added to the search string initially. |
| 890 | |
| 891 | +++ |
| 892 | *** `C-x 8 RET' in Isearch mode reads a character by its Unicode name |
| 893 | and adds it to the search string. |
| 894 | |
| 895 | +++ |
| 896 | *** `M-s i' in Isearch mode toggles whether search matches invisible text. |
| 897 | |
| 898 | +++ |
| 899 | *** `query-replace' skips invisible text when `search-invisible' is nil, |
| 900 | and opens overlays with hidden text when `search-invisible' is `open'. |
| 901 | |
| 902 | +++ |
| 903 | *** A negative prefix arg of replacement commands replaces backward. |
| 904 | `M-- M-%' replaces a string backward, `M-- C-M-%' replaces a regexp |
| 905 | backward, `M-s w words M-- M-%' replaces a sequence of words backward. |
| 906 | |
| 907 | +++ |
| 908 | *** By default, prefix arguments do not now terminate Isearch mode. |
| 909 | Set `isearch-allow-prefix' to nil to restore old behavior. |
| 910 | |
| 911 | +++ |
| 912 | *** More Isearch commands accept prefix arguments, namely |
| 913 | `isearch-printing-char', `isearch-quote-char', `isearch-yank-word', |
| 914 | `isearch-yank-line'. |
| 915 | |
| 916 | +++ |
| 917 | *** Word search now matches whitespace at the beginning/end |
| 918 | of the search string if it contains leading/trailing whitespace. |
| 919 | In an incremental word search or when using a non-nil LAX argument |
| 920 | of `word-search-regexp', the lax matching can also match part of |
| 921 | the first word (in addition to the lax matching of the last word). |
| 922 | The same rules are now applied to the symbol search with the difference |
| 923 | that it matches symbols, and non-symbol characters between symbols. |
| 924 | |
| 925 | +++ |
| 926 | ** New SES command `ses-rename-cell' allows assignment of names to SES cells. |
| 927 | |
| 928 | --- |
| 929 | ** The shell.el option `explicit-bash-args' includes --noediting by default. |
| 930 | All non-ancient Bash versions support this option. |
| 931 | |
| 932 | ** Shell Script mode |
| 933 | |
| 934 | --- |
| 935 | *** The SMIE indentation engine is now used by default - see `sh-use-smie'. |
| 936 | |
| 937 | --- |
| 938 | *** `sh-mode' now has its own setting for `add-log-current-defun-function'. |
| 939 | |
| 940 | ** SMIE |
| 941 | |
| 942 | +++ |
| 943 | *** You can customize the SMIE indentation of a mode via `smie-config'. |
| 944 | The command `smie-config-guess' can help you derive the appropriate |
| 945 | indentation settings, if you provide it with an indented sample file. |
| 946 | Use `smie-config-save' to save the result. |
| 947 | |
| 948 | +++ |
| 949 | *** You can customize the SMIE indentation of a file by adding an entry to |
| 950 | the file's local variables of the form: `eval: (smie-config-local '(RULES))'. |
| 951 | |
| 952 | +++ |
| 953 | *** New commands `smie-config-show-indent' and `smie-config-set-indent'. |
| 954 | |
| 955 | --- |
| 956 | ** SQL mode |
| 957 | |
| 958 | *** Improved login monitoring and appropriate response to login failures. |
| 959 | New variable `sql-login-delay' defines maximum wait time for a connection. |
| 960 | |
| 961 | *** Oracle support. |
| 962 | SQL*Plus script placeholders are properly highlighted and identified |
| 963 | in `sql-placeholders-filter'. When starting SQL*Plus, `sql-oracle-options' |
| 964 | are passed before the logon parameter, as required. The default now |
| 965 | includes `-L', to limit the number of logon attempts per invocation. |
| 966 | |
| 967 | --- |
| 968 | ** New Term mode option `term-suppress-hard-newline'. |
| 969 | |
| 970 | +++ |
| 971 | ** Todo mode has been rewritten and enhanced. |
| 972 | The Todo mode user manual describes all commands and most user |
| 973 | options. To support some of these features, a new file format is |
| 974 | used, which is incompatible with the old format; however, you can |
| 975 | convert old todo and done item files to the new format on initializing |
| 976 | the first new todo file, or at any later time with the provided |
| 977 | conversion command. The previous version of todo-mode.el has been |
| 978 | renamed to otodo-mode.el and is now obsolete. New features include: |
| 979 | |
| 980 | *** Support for multiple todo files and archive files of done items. |
| 981 | |
| 982 | *** Renaming, reordering, moving, merging, and deleting categories. |
| 983 | |
| 984 | *** Sortable tabular summaries of categories and the item types they contain. |
| 985 | |
| 986 | *** Cross-category lists of items filtered by specific criteria. |
| 987 | |
| 988 | *** More fine-grained interaction with the Emacs diary, by being able to |
| 989 | decide for each todo item whether it appears in the Fancy Diary display. |
| 990 | |
| 991 | *** Highly flexible new item insertion and item editing. |
| 992 | |
| 993 | *** Moving items between categories, storing done items in their category |
| 994 | or in archive files, undoing or unarchiving done items. |
| 995 | |
| 996 | *** Reprioritizing items by inputting a numerical priority. |
| 997 | |
| 998 | *** Extensive customizability of operation and display, including many faces. |
| 999 | |
| 1000 | ** Trace |
| 1001 | |
| 1002 | --- |
| 1003 | *** `trace-function' and `trace-function-background' no longer prompt for |
| 1004 | the output buffer. Unless you use a prefix argument, they output to |
| 1005 | `trace-buffer'. |
| 1006 | |
| 1007 | --- |
| 1008 | *** With a prefix argument, `trace-function' and `trace-function-background' |
| 1009 | will prompt for a "context". This is a Lisp expression, whose value at the |
| 1010 | time the function is entered/exited is printed along with the function's |
| 1011 | name and arguments. |
| 1012 | |
| 1013 | ** Tramp |
| 1014 | |
| 1015 | +++ |
| 1016 | *** The experimental url syntax for remote file names has been removed. |
| 1017 | |
| 1018 | +++ |
| 1019 | *** New connection method "adb", which allows to access Android |
| 1020 | devices by the Android Debug Bridge. The variable `tramp-adb-program' |
| 1021 | can be used to adapt the path of the "adb" program, if needed. |
| 1022 | |
| 1023 | +++ |
| 1024 | *** The connection methods "plink1", "ssh1", "ssh2", "scp1", "scp2", |
| 1025 | "scpc" and "rsyncc" are discontinued. The ssh option |
| 1026 | "ControlMaster=auto" is set automatically in all ssh-based methods, |
| 1027 | when possible. See `tramp-use-ssh-controlmaster-options'. |
| 1028 | |
| 1029 | +++ |
| 1030 | *** Handlers for `file-acl' and `set-file-acl' for remote machines |
| 1031 | which support POSIX ACLs. |
| 1032 | |
| 1033 | +++ |
| 1034 | *** Handlers for `file-notify-add-watch' and `file-notify-rm-watch' |
| 1035 | for remote machines which support filesystem notifications. |
| 1036 | |
| 1037 | +++ |
| 1038 | ** New URL command `url-cookie-list' displays the current cookies, |
| 1039 | and allows you to interactively remove cookies. |
| 1040 | |
| 1041 | ** VC and related modes |
| 1042 | |
| 1043 | +++ |
| 1044 | *** In VC directory mode, `D' displays diffs between VC-controlled |
| 1045 | whole tree revisions. |
| 1046 | |
| 1047 | +++ |
| 1048 | *** In VC directory mode, `L' lists the change log for the current VC |
| 1049 | controlled tree in a window. |
| 1050 | |
| 1051 | +++ |
| 1052 | *** In VC directory mode, `I' shows a log of changes that will be |
| 1053 | received with a pull operation. |
| 1054 | |
| 1055 | +++ |
| 1056 | *** `C-x v G' (globally) and `G' (in VC directory mode) ignores a file |
| 1057 | under current version control system. When called with a prefix |
| 1058 | argument, you can remove a file from the ignored file list. |
| 1059 | |
| 1060 | ** VHDL mode |
| 1061 | |
| 1062 | --- |
| 1063 | *** New options: `vhdl-actual-generic-name', `vhdl-beautify-options'. |
| 1064 | |
| 1065 | --- |
| 1066 | *** New commands: `vhdl-fix-statement-region', `vhdl-fix-statement-buffer'. |
| 1067 | |
| 1068 | --- |
| 1069 | ** The Woman commands `woman-default-faces' and `woman-monochrome-faces' |
| 1070 | are obsolete. Customize the `woman-*' faces instead. |
| 1071 | |
| 1072 | ** Obsolete packages |
| 1073 | |
| 1074 | +++ |
| 1075 | *** iswitchb.el; use icomplete-mode. |
| 1076 | |
| 1077 | --- |
| 1078 | *** longlines.el; use visual-line-mode. |
| 1079 | |
| 1080 | --- |
| 1081 | *** meese.el. |
| 1082 | |
| 1083 | +++ |
| 1084 | *** sup-mouse.el. |
| 1085 | |
| 1086 | --- |
| 1087 | *** terminal.el; use term.el instead. |
| 1088 | |
| 1089 | --- |
| 1090 | *** the old version of todo-mode.el (renamed to otodo-mode.el). |
| 1091 | |
| 1092 | --- |
| 1093 | *** xesam.el (owing to the cancellation of the XESAM project). |
| 1094 | |
| 1095 | +++ |
| 1096 | *** yow.el; use fortune.el or cookie1.el instead. |
| 1097 | |
| 1098 | \f |
| 1099 | * New Modes and Packages in Emacs 24.4 |
| 1100 | |
| 1101 | +++ |
| 1102 | ** New package `eww' is a built-in web browser. |
| 1103 | It is only available if Emacs is compiled with libxml2 support. |
| 1104 | |
| 1105 | +++ |
| 1106 | ** New minor mode `superword-mode'. |
| 1107 | This overrides the default word motion commands to treat "symbol_words" |
| 1108 | as a single word, similar to what `subword-mode' does. |
| 1109 | |
| 1110 | +++ |
| 1111 | ** New package nadvice.el offers lighter-weight advice facilities. |
| 1112 | It is layered as: |
| 1113 | |
| 1114 | *** add-function/remove-function, which can be used to add/remove code on any |
| 1115 | function-carrying place, such as process-filters or `<foo>-function' hooks. |
| 1116 | |
| 1117 | *** advice-add/advice-remove to add/remove a piece of advice on a named |
| 1118 | function, much like `defadvice' does. |
| 1119 | |
| 1120 | ** New package frameset.el. |
| 1121 | It provides a set of operations to save a frameset (the state of all |
| 1122 | or a subset of the existing frames and windows, somewhat similar to a |
| 1123 | frame configuration), both in-session and persistently, and restore it |
| 1124 | at some point in the future. |
| 1125 | |
| 1126 | +++ |
| 1127 | ** New package filenotify.el provides an interface for file system |
| 1128 | notifications. It requires that Emacs be compiled with one of the |
| 1129 | low-level libraries gfilenotify.c, inotify.c or w32notify.c. |
| 1130 | |
| 1131 | \f |
| 1132 | * Incompatible Lisp Changes in Emacs 24.4 |
| 1133 | |
| 1134 | --- |
| 1135 | ** `kill-region' has lost its `yank-handler' optional argument. |
| 1136 | |
| 1137 | +++ |
| 1138 | ** `(input-pending-p)' no longer runs other timers that are ready to run. |
| 1139 | The new optional CHECK-TIMERS parameter allows for the prior behavior. |
| 1140 | |
| 1141 | +++ |
| 1142 | ** `defvar' and `defcustom' in a let-binding affect the "external" default. |
| 1143 | |
| 1144 | --- |
| 1145 | ** The syntax of ?» and ?« is now punctuation instead of matched parens. |
| 1146 | Some languages match those as »...«, and others as «...», so it is |
| 1147 | better for Emacs to stay neutral by default. |
| 1148 | |
| 1149 | --- |
| 1150 | ** In compiled Lisp files, the header no longer includes a timestamp. |
| 1151 | |
| 1152 | +++ |
| 1153 | ** The default file coding for Emacs Lisp files is now utf-8. |
| 1154 | (See `file-coding-system-alist'.) In most cases, this change is |
| 1155 | transparent, but files that contain unusual characters without |
| 1156 | specifying an explicit coding system may fail to load with obscure |
| 1157 | errors. You should either convert them to utf-8 or add an explicit |
| 1158 | `coding:' cookie. |
| 1159 | |
| 1160 | +++ |
| 1161 | ** `overriding-terminal-local-map' no longer replaces the local keymaps. |
| 1162 | It used to disable the minor mode, major mode, and text-property keymaps, |
| 1163 | whereas now it simply has higher precedence. |
| 1164 | |
| 1165 | +++ |
| 1166 | ** Default process filters and sentinels are not nil any more. |
| 1167 | Instead they default to a function that does what the nil value used to do. |
| 1168 | |
| 1169 | +++ |
| 1170 | ** `read-event' does not return decoded chars in ttys any more. |
| 1171 | As was the case in Emacs 22 and before, the decoding of terminal |
| 1172 | input, according to `keyboard-coding-system', is not performed in |
| 1173 | `read-event' any more. But unlike in Emacs 22, this decoding is still |
| 1174 | done before input-decode-map, function-key-map, etc. |
| 1175 | |
| 1176 | --- |
| 1177 | ** The option `inhibit-local-menu-bar-menus' has been removed. |
| 1178 | |
| 1179 | --- |
| 1180 | ** Frame-local variables that affect redisplay do not work any more. |
| 1181 | More specifically, redisplay does not bother to check for a frame-local |
| 1182 | value when looking up variables. |
| 1183 | |
| 1184 | +++ |
| 1185 | ** nil and "unbound" are indistinguishable in `symbol-function'. |
| 1186 | `symbol-function' does not signal a `void-function' error any more. |
| 1187 | To determine if a symbol's function definition is void, use `fboundp'. |
| 1188 | |
| 1189 | +++ |
| 1190 | ** `defadvice' does not honor the `freeze' flag and cannot advise |
| 1191 | special-forms any more. |
| 1192 | |
| 1193 | --- |
| 1194 | ** `dolist' no longer binds VAR while evaluating the RESULT form, |
| 1195 | when lexical binding is enabled. Previously, VAR was bound to nil, |
| 1196 | which often led to spurious unused-variable warnings. |
| 1197 | |
| 1198 | +++ |
| 1199 | ** The return value of `backup-buffer' has changed. |
| 1200 | The second argument is no longer an SELinux context, instead it is an |
| 1201 | alist of extended attributes as returned by the new function |
| 1202 | `file-extended-attributes'. The attributes can be applied to another |
| 1203 | file using `set-file-extended-attributes'. |
| 1204 | |
| 1205 | +++ |
| 1206 | ** By default `copy-file' no longer copies file permission bits to an |
| 1207 | existing destination; and it sets the file permission bits of a newly |
| 1208 | created destination to those of the source, masked by the default file |
| 1209 | permissions. To copy the file permission bits, pass t as the |
| 1210 | PRESERVE-PERMISSIONS argument of `copy-file'. |
| 1211 | |
| 1212 | +++ |
| 1213 | ** `visited-file-modtime' now returns -1 for nonexistent files. |
| 1214 | Formerly it returned a list (-1 LOW USEC PSEC), but this was ambiguous |
| 1215 | in the presence of files with negative time stamps. |
| 1216 | |
| 1217 | +++ |
| 1218 | ** The cars of the elements in `interpreter-mode-alist' are now |
| 1219 | treated as regexps rather than literal strings. |
| 1220 | |
| 1221 | --- |
| 1222 | ** Overlay priority does not have to be nil or a non-negative integer. |
| 1223 | Overlay priority can be other kinds of Lisp objects. We didn't yet |
| 1224 | decide whether other types of values are stable enough, and therefore |
| 1225 | don't feel it's right to document them. For now, don't assume in your |
| 1226 | code that the values of overlay priority can only be either nil or an |
| 1227 | integer, always test them with an appropriate predicate to be one or |
| 1228 | the other. |
| 1229 | |
| 1230 | \f |
| 1231 | * Lisp Changes in Emacs 24.4 |
| 1232 | |
| 1233 | ** overlays-at can optionally sort its result by priority. |
| 1234 | |
| 1235 | +++ |
| 1236 | ** The second argument of `eval' can now specify a lexical environment. |
| 1237 | |
| 1238 | +++ |
| 1239 | ** New functions `special-form-p' and `macrop'. |
| 1240 | |
| 1241 | +++ |
| 1242 | ** New macro `define-alternatives' can be used to define generic commands. |
| 1243 | Generic commands are interactive functions whose implementation can be |
| 1244 | selected among several alternatives, as a matter of user preference. |
| 1245 | |
| 1246 | +++ |
| 1247 | ** If you give a symbol a `defalias-fset-function' property, `defalias' |
| 1248 | on that symbol will use the associated value as a function to call |
| 1249 | in place of `fset'. |
| 1250 | |
| 1251 | +++ |
| 1252 | ** New variable `enable-dir-local-variables'. |
| 1253 | Directory-local variables are ignored if this is nil. This may be |
| 1254 | useful for modes that want to ignore directory-locals while still |
| 1255 | respecting file-local variables. |
| 1256 | |
| 1257 | +++ |
| 1258 | ** New function `get-pos-property'. |
| 1259 | |
| 1260 | +++ |
| 1261 | ** `read-regexp' now uses the new variable `read-regexp-defaults-function' |
| 1262 | as a function to call to provide default values. |
| 1263 | |
| 1264 | ** Completion changes |
| 1265 | |
| 1266 | --- |
| 1267 | *** The separator used by `completing-read-multiple' is now a regexp. |
| 1268 | The default `crm-separator' has been changed to allow surrounding spaces |
| 1269 | around the comma. |
| 1270 | |
| 1271 | +++ |
| 1272 | *** The `common-substring' argument of `display-completion-list', |
| 1273 | which has been documented as obsolete since Emacs 23.1, is now _really_ |
| 1274 | obsolete, and no longer advertised. Instead either call |
| 1275 | `completion-hilit-commonality' to add the highlighting; or use |
| 1276 | `completion-all-completions', which returns highlighted strings. |
| 1277 | |
| 1278 | +++ |
| 1279 | *** New function `completion-table-with-cache' is a wrapper for |
| 1280 | `completion-table-dynamic' that caches the result of the last lookup. |
| 1281 | |
| 1282 | +++ |
| 1283 | *** New function `completion-table-merge' to combine several |
| 1284 | completion tables by merging their completions. |
| 1285 | |
| 1286 | +++ |
| 1287 | ** New minor modes `prettify-symbols-mode' and `global-prettify-symbols-mode' |
| 1288 | display specified symbols as composed characters. E.g., in Emacs Lisp mode, |
| 1289 | this replaces the string "lambda" with the Greek lambda character. |
| 1290 | |
| 1291 | ** Terminal changes |
| 1292 | |
| 1293 | +++ |
| 1294 | *** Functions to pop up menus and dialogs now work on all terminals, |
| 1295 | including TTYs. This includes `x-popup-menu', `x-popup-dialog', |
| 1296 | `message-box', `yes-or-no-p', etc. |
| 1297 | |
| 1298 | The function `display-popup-menus-p' will now return non-nil for a |
| 1299 | display or frame whenever a mouse is supported on that display or |
| 1300 | frame. |
| 1301 | |
| 1302 | +++ |
| 1303 | *** New hook `tty-setup-hook', run at the end of initializing a text terminal. |
| 1304 | |
| 1305 | +++ |
| 1306 | *** The hook `term-setup-hook' is obsolete. It is entirely equivalent |
| 1307 | to `emacs-startup-hook'. See also the new `tty-setup-hook'. |
| 1308 | |
| 1309 | +++ |
| 1310 | ** New hook `pre-redisplay-function'. |
| 1311 | |
| 1312 | +++ |
| 1313 | ** New bool-vector set operation functions |
| 1314 | *** `bool-vector-exclusive-or' |
| 1315 | *** `bool-vector-union' |
| 1316 | *** `bool-vector-intersection' |
| 1317 | *** `bool-vector-set-difference' |
| 1318 | *** `bool-vector-not' |
| 1319 | *** `bool-vector-subsetp' |
| 1320 | *** `bool-vector-count-consecutive' |
| 1321 | *** `bool-vector-count-population' |
| 1322 | |
| 1323 | +++ |
| 1324 | ** Comparison functions =, <, >, <=, >= can now take many arguments. |
| 1325 | |
| 1326 | ** Error-handling changes |
| 1327 | |
| 1328 | +++ |
| 1329 | *** New function `define-error'. |
| 1330 | |
| 1331 | +++ |
| 1332 | *** `with-demoted-errors' takes an additional argument `format'. |
| 1333 | |
| 1334 | +++ |
| 1335 | ** New macro `with-eval-after-load'. |
| 1336 | This is like the old `eval-after-load', but better behaved. |
| 1337 | |
| 1338 | --- |
| 1339 | ** New library subr-x.el with miscellaneous small utility functions |
| 1340 | *** `hash-table-keys' |
| 1341 | *** `hash-table-values' |
| 1342 | *** `string-blank-p' |
| 1343 | *** `string-empty-p' |
| 1344 | *** `string-join' |
| 1345 | *** `string-reverse' |
| 1346 | *** `string-trim-left' |
| 1347 | *** `string-trim-right' |
| 1348 | *** `string-trim' |
| 1349 | *** `string-remove-prefix' |
| 1350 | *** `string-remove-suffix' |
| 1351 | |
| 1352 | +++ |
| 1353 | ** Obsoleted functions |
| 1354 | *** `log10' |
| 1355 | *** `dont-compile' |
| 1356 | *** `lisp-complete-symbol' |
| 1357 | *** `field-complete' |
| 1358 | *** `minibuffer-completion-contents' |
| 1359 | *** `isearch-nonincremental-exit-minibuffer' |
| 1360 | *** `isearch-filter-visible' |
| 1361 | *** `generic-make-keywords-list' |
| 1362 | *** `get-upcase-table' (use `case-table-get-table' instead). |
| 1363 | |
| 1364 | ** `with-wrapper-hook' is obsoleted by `add-function'. |
| 1365 | The few hooks that used with-wrapper-hook are replaced as follows: |
| 1366 | *** `abbrev-expand-function' obsoletes `abbrev-expand-functions'. |
| 1367 | *** `completion-in-region-function' obsoletes `completion-in-region-functions'. |
| 1368 | *** `filter-buffer-substring-function' obsoletes `filter-buffer-substring-functions'. |
| 1369 | |
| 1370 | +++ |
| 1371 | ** `byte-compile-interactive-only-functions' is now obsolete. |
| 1372 | To specify that a command should only be called interactively, give it |
| 1373 | a non-nil `interactive-only' property. |
| 1374 | |
| 1375 | +++ |
| 1376 | ** `split-string' now takes an optional argument TRIM. |
| 1377 | The value, if non-nil, is a regexp that specifies what to trim from |
| 1378 | the start and end of each substring. |
| 1379 | |
| 1380 | +++ |
| 1381 | ** New function `string-suffix-p'. |
| 1382 | |
| 1383 | ** File-handling changes |
| 1384 | |
| 1385 | +++ |
| 1386 | *** Support for filesystem notifications. |
| 1387 | Emacs now supports notifications of filesystem changes, such as |
| 1388 | creation, modification, and deletion of files. This requires the |
| 1389 | `glib' API, or the 'inotify' API (on GNU/Linux systems only). On |
| 1390 | MS-Windows systems, this is supported for Windows XP and newer |
| 1391 | versions. |
| 1392 | |
| 1393 | +++ |
| 1394 | *** The 9th element returned by `file-attributes' is now unspecified. |
| 1395 | Formerly, it was t if the file's gid would change if file were deleted |
| 1396 | and recreated. This value has been inaccurate for years on many |
| 1397 | platforms, and nobody seems to have noticed or cared. |
| 1398 | |
| 1399 | +++ |
| 1400 | *** The 6th argument to `copy-file' has been renamed to |
| 1401 | PRESERVE-PERMISSIONS as it now handles ACL entries and the traditional |
| 1402 | Unix file permission bits as well as SELinux context. |
| 1403 | |
| 1404 | +++ |
| 1405 | *** The function `file-ownership-preserved-p' now has an optional |
| 1406 | argument GROUP which causes it check for file group too. This can be |
| 1407 | used in place of the 9th element of `file-attributes'. |
| 1408 | |
| 1409 | --- |
| 1410 | *** The function `set-visited-file-modtime' now accepts a 0 or -1 |
| 1411 | argument, with the same interpretation as the returned value of |
| 1412 | `visited-file-modtime'. |
| 1413 | |
| 1414 | ** Revert and Autorevert changes |
| 1415 | |
| 1416 | +++ |
| 1417 | *** The default values of `buffer-stale-function', `revert-buffer-function', |
| 1418 | and `revert-buffer-insert-file-contents-function' are no longer nil. |
| 1419 | Instead they default to functions that do what the nil value used to. |
| 1420 | |
| 1421 | +++ |
| 1422 | *** `buffer-stale-function' is now used for buffers visiting files too. |
| 1423 | |
| 1424 | --- |
| 1425 | *** If Emacs is compiled with file notification support, it uses notifications |
| 1426 | instead of checking file time stamps. To disable this, set the user option |
| 1427 | `auto-revert-use-notify' to nil. Alternatively, you can specify a regular |
| 1428 | expression matching directories to be excluded from file notifications via |
| 1429 | `auto-revert-notify-exclude-dir-regexp'. |
| 1430 | |
| 1431 | --- |
| 1432 | *** The new user option `auto-revert-remote-files' enables reversion |
| 1433 | of remote files, if set to non-nil. |
| 1434 | |
| 1435 | ** Face changes |
| 1436 | |
| 1437 | +++ |
| 1438 | *** The function `face-spec-set' is now like `setq' for face specs. |
| 1439 | Its third arg now accepts values specifying a face spec type (defface, |
| 1440 | custom, or override spec), and the relevant spec is set accordingly. |
| 1441 | |
| 1442 | +++ |
| 1443 | *** New function `add-face-text-property', which can be used to |
| 1444 | conveniently prepend/append new face properties. |
| 1445 | |
| 1446 | --- |
| 1447 | *** Face specs set via Custom themes now replace the `defface' spec |
| 1448 | rather than inheriting from it. In other words, setting a face via a |
| 1449 | theme now behaves like setting it via Customize: you only need to |
| 1450 | specify the attributes that you want, you don't need to unset those |
| 1451 | that you don't want. |
| 1452 | |
| 1453 | --- |
| 1454 | *** New face characteristic (supports :underline (:style wave)) |
| 1455 | specifies whether or not the terminal can display a wavy line. |
| 1456 | |
| 1457 | +++ |
| 1458 | *** New face spec attribute :distant-foreground |
| 1459 | specifies foreground to use if background color is near the foreground |
| 1460 | color that would otherwise have been used. |
| 1461 | |
| 1462 | ** Image API |
| 1463 | |
| 1464 | +++ |
| 1465 | *** `image-animated-p' is now `image-multi-frame-p'. |
| 1466 | It returns non-nil for any image that contains multiple frames, |
| 1467 | whether or not it specifies a frame delay. |
| 1468 | |
| 1469 | +++ |
| 1470 | *** New variable `image-default-frame-delay' gives the frame delay for |
| 1471 | animated images which do not specify a frame delay. |
| 1472 | |
| 1473 | +++ |
| 1474 | *** New functions `image-current-frame' and `image-show-frame' for getting |
| 1475 | and setting the current frame of a multi-frame image. |
| 1476 | |
| 1477 | ** EIEIO |
| 1478 | |
| 1479 | +++ |
| 1480 | *** Namespace cleanup by obsolete-aliasing functions to use `eieio-' prefix. |
| 1481 | **** object-name -> eieio-object-name |
| 1482 | **** object-class -> eieio-object-class |
| 1483 | **** object-class-fast -> eieio--object-class |
| 1484 | **** object-class-name -> eieio-object-class-name |
| 1485 | **** object-name-string -> eieio-object-name-string |
| 1486 | **** object-num-slots -> eieio--object-num-slots |
| 1487 | **** object-set-name-string -> eieio-object-set-name-string |
| 1488 | **** class-of -> eieio-object-class |
| 1489 | **** class-name -> eieio-class-name |
| 1490 | **** class-parent -> eieio-class-parent |
| 1491 | **** class-parents -> eieio-class-parents |
| 1492 | **** class-parents-fast -> eieio-class-parents-fast |
| 1493 | **** class-children -> eieio-class-children |
| 1494 | **** class-num-slots -> eieio--class-num-slots |
| 1495 | **** class-precedence-list -> eieio-class-precedence-list |
| 1496 | **** class-direct-subclasses -> eieio-class-children |
| 1497 | **** class-direct-superclasses -> eieio-class-parents |
| 1498 | |
| 1499 | ** Changes in encoding and decoding of text |
| 1500 | |
| 1501 | --- |
| 1502 | *** New coding-system `prefer-utf-8'. |
| 1503 | This is like `undecided' but prefers UTF-8 on decoding if the text to |
| 1504 | be decoded does not contain any invalid UTF-8 sequences. On encoding, |
| 1505 | any non-ASCII characters are automatically encoded as UTF-8. |
| 1506 | |
| 1507 | --- |
| 1508 | *** New attributes of coding-systems whose type is `undecided'. |
| 1509 | Two new attributes, `:inhibit-null-byte-detection' and |
| 1510 | `:inhibit-iso-escape-detection', determine how to detect encoding of |
| 1511 | text that includes null bytes and ISO-2022 escape sequences, |
| 1512 | respectively. Each of these attributes can be either nil, zero, or |
| 1513 | t. If it is t, decoding text ignores null bytes and, respectively, |
| 1514 | ISO-2022 sequences. If it is nil, null bytes cause text to be decoded |
| 1515 | with no-conversion and ISO-2022 sequences cause Emacs to assume the |
| 1516 | text is encoded in one of the ISO-2022 encodings, such as |
| 1517 | iso-2022-7bit. If the value is zero, Emacs consults the variables |
| 1518 | inhibit-null-byte-detection and inhibit-iso-escape-detection, which |
| 1519 | see. |
| 1520 | The new attribute `:prefer-utf-8', if non-nil, causes Emacs to prefer |
| 1521 | UTF-8 encoding and decoding, whenever possible. |
| 1522 | |
| 1523 | These attributes are only meaningful for coding-systems of type |
| 1524 | `undecided'. (The type of a coding-system is determined by its |
| 1525 | `:coding-type' attribute and can be accessed by calling the |
| 1526 | `coding-system-type' function.) |
| 1527 | |
| 1528 | --- |
| 1529 | ** The `time-to-seconds' alias to `float-time' is no longer marked obsolete. |
| 1530 | |
| 1531 | +++ |
| 1532 | ** New functions `group-gid' and `group-real-gid'. |
| 1533 | |
| 1534 | --- |
| 1535 | ** The spelling of the rx.el category `chinese-two-byte' has been |
| 1536 | corrected (the first 'e' was missing). |
| 1537 | |
| 1538 | --- |
| 1539 | ** Minor internal changes to the details of lock files. |
| 1540 | The lock for DIR/FILE is now _always_ DIR/.#FILE. |
| 1541 | If DIR/.#FILE already exists and is not an Emacs lock file, |
| 1542 | Emacs makes no attempt to lock DIR/FILE. (Previously, it fell back to |
| 1543 | numbered lock files DIR/.#FILE.0...). |
| 1544 | On file systems that do not support symbolic links, the lock is now a |
| 1545 | regular file with contents being what would have been in the symlink. |
| 1546 | |
| 1547 | ** Changes to the Emacs Lisp Coding Conventions in Emacs 24.4 |
| 1548 | |
| 1549 | +++ |
| 1550 | *** The package descriptor and name of global variables, constants, |
| 1551 | and functions should be separated by two hyphens if the symbol is not |
| 1552 | meant to be used by other packages. |
| 1553 | |
| 1554 | \f |
| 1555 | * Changes in Emacs 24.4 on Non-Free Operating Systems |
| 1556 | |
| 1557 | --- |
| 1558 | ** The procedure for building Emacs on MS-Windows has changed. |
| 1559 | It is now built by running the same configure script as on all other |
| 1560 | platforms. This requires the MSYS environment and MinGW development |
| 1561 | tools. See the updated instructions in nt/INSTALL for details. |
| 1562 | |
| 1563 | Using the Posix configure script and Makefile's also means a change in |
| 1564 | the directory structure of the Emacs installation on Windows. It is |
| 1565 | now the same as on GNU and Unix systems. In particular, the auxiliary |
| 1566 | programs, such as cmdproxy.exe and hexl.exe, are in |
| 1567 | libexec/emacs/VERSION/i686-pc-mingw32 (where VERSION is the Emacs |
| 1568 | version), version-independent site-lisp is in share/emacs/site-lisp, |
| 1569 | version-specific Lisp files are in share/emacs/VERSION/lisp and in |
| 1570 | share/emacs/VERSION/site-lisp, Info docs are in share/info, and data |
| 1571 | files are in share/emacs/VERSION/etc. (Emacs knows about all these |
| 1572 | directories and will find the files in there automatically; there's no |
| 1573 | need to set any variables due to this change.) |
| 1574 | |
| 1575 | +++ |
| 1576 | ** Emacs on Windows 2000 and later can now access files and directories |
| 1577 | whose names cannot be encoded in the current system codepage. |
| 1578 | |
| 1579 | The new variable `w32-unicode-filenames' controls this feature: if it |
| 1580 | is t, Emacs uses Unicode APIs to pass file names to system calls, |
| 1581 | which lifts the limitation of file names to the current locale. |
| 1582 | |
| 1583 | +++ |
| 1584 | ** The "generate a backtrace on fatal error" feature now works on MS Windows. |
| 1585 | The backtrace is written to the 'emacs_backtrace.txt' file in the |
| 1586 | directory where Emacs was running. |
| 1587 | |
| 1588 | +++ |
| 1589 | ** The variable `buffer-file-type' is no longer supported. |
| 1590 | Setting it has no effect, and %t in the mode-line format is ignored. |
| 1591 | Likewise, `file-name-buffer-file-type-alist' is now obsolete, and |
| 1592 | modifying it has no effect. |
| 1593 | |
| 1594 | --- |
| 1595 | ** Lock files now work on MS-Windows. |
| 1596 | This helps to prevent losing your edits if the same file is being |
| 1597 | edited in another Emacs session or by another user. See the node |
| 1598 | "Interlocking" in the Emacs User Manual for the details. To disable |
| 1599 | file locking, customize `create-lockfiles' to nil. |
| 1600 | |
| 1601 | ** New Core Text based font backend for Mac OS X 10.5 and newer. |
| 1602 | GNUstep and Mac OS X 10.4 use the old font backend. |
| 1603 | To use the old backend by default, do on the command line: |
| 1604 | % defaults write org.gnu.Emacs FontBackend ns |
| 1605 | |
| 1606 | ** Improved fullscreen support on Mac OS X. |
| 1607 | Emacs supports both native (Mac OS X 10.7 and newer) and "old style" fullscreen. |
| 1608 | Customize `ns-use-native-fullscreen' to change the style. |
| 1609 | For Mac OS X 10.7 and newer, native is the default. |
| 1610 | |
| 1611 | ** On Mac OS X 10.7 and newer, Emacs uses sRGB colorspace by default. |
| 1612 | Customize `ns-use-srgb-colorspace' to disable this. Note that this |
| 1613 | does not apply to images. |
| 1614 | |
| 1615 | \f |
| 1616 | * Installation Changes in Emacs 24.3 |
| 1617 | |
| 1618 | ** The default X toolkit is now Gtk+ version 3. |
| 1619 | If you don't pass `--with-x-toolkit' to configure, or if you use |
| 1620 | `--with-x-toolkit=gtk' or `--with-x-toolkit=yes', configure will try |
| 1621 | to build with Gtk+ version 3, and if that fails, try Gtk+ version 2. |
| 1622 | You can explicitly require a specific version by passing |
| 1623 | `--with-x-toolkit=gtk2' or `--with-x-toolkit=gtk3' to configure. |
| 1624 | |
| 1625 | ** New configure option `--enable-link-time-optimization', to utilize |
| 1626 | an appropriate feature provided by GCC since version 4.5.0. |
| 1627 | |
| 1628 | ** New configure option `--without-all' to disable most of the optional |
| 1629 | features (image support, etc.) that are normally enabled by default. |
| 1630 | |
| 1631 | ** New configure option `--enable-gcc-warnings' (for developing/debugging |
| 1632 | Emacs). If building with GCC, this enables compile-time checks that |
| 1633 | warn/give errors about possibly-questionable C code. On a recent GNU |
| 1634 | system there should be no warnings; on older and on non-GNU systems |
| 1635 | the results may be useful to developers. |
| 1636 | |
| 1637 | ** The configure option `--enable-use-lisp-union-type' has been |
| 1638 | renamed to `--enable-check-lisp-object-type', as the resulting |
| 1639 | Lisp_Object type no longer uses a union to implement the compile time |
| 1640 | check that this option enables. |
| 1641 | |
| 1642 | ** The configure option `--disable-maintainer-mode' has been removed, |
| 1643 | as it was confusingly-named and rarely useful. |
| 1644 | |
| 1645 | ** The configure options `--program-prefix', `--program-suffix', and |
| 1646 | `--program-transform-name' apply to more than just the installed |
| 1647 | binaries. Now they also affect the man pages, icons, and the |
| 1648 | etc/emacs.desktop file; but not the info pages, since this would break |
| 1649 | links between the various manuals. |
| 1650 | |
| 1651 | ** You can use `NO_BIN_LINK=t make install' to prevent the installation |
| 1652 | overwriting "emacs" in the installation bin/ directory with a link |
| 1653 | to "emacs-VERSION". |
| 1654 | |
| 1655 | ** Emacs uses libtinfo in preference to libncurses, if available. |
| 1656 | |
| 1657 | ** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and |
| 1658 | /usr/pkg/lib to the linker search path. You must add them yourself if |
| 1659 | you want them. |
| 1660 | |
| 1661 | ** The standalone scripts `rcs-checkin' and `vcdiff' have been removed |
| 1662 | (from the bin and libexec directories, respectively). The former is |
| 1663 | no longer relevant, the latter is replaced by lisp (in vc-sccs.el). |
| 1664 | |
| 1665 | \f |
| 1666 | * Startup Changes in Emacs 24.3 |
| 1667 | |
| 1668 | ** Emacs no longer searches for `leim-list.el' files beneath the standard |
| 1669 | lisp/ directory. There should not be any there anyway. If you have |
| 1670 | been adding them there, put them somewhere else; e.g., site-lisp. |
| 1671 | |
| 1672 | ** The `--no-site-lisp' command line option now works for Nextstep builds. |
| 1673 | |
| 1674 | \f |
| 1675 | * Changes in Emacs 24.3 |
| 1676 | |
| 1677 | ** Help |
| 1678 | |
| 1679 | *** `C-h f' (`describe-function') can now perform autoloading. |
| 1680 | When this command is called for an autoloaded function whose docstring |
| 1681 | contains a key substitution construct, that function's library is |
| 1682 | automatically loaded, so that the documentation can be shown |
| 1683 | correctly. To disable this, set `help-enable-auto-load' to nil. |
| 1684 | |
| 1685 | *** `C-h f' now reports previously-autoloaded functions as "autoloaded", |
| 1686 | even after their associated libraries have been loaded (and the |
| 1687 | autoloads have been redefined as functions). |
| 1688 | |
| 1689 | ** ImageMagick |
| 1690 | |
| 1691 | *** Images displayed via ImageMagick now support transparency and the |
| 1692 | :background image specification property. |
| 1693 | |
| 1694 | *** When available, ImageMagick support is automatically enabled. |
| 1695 | It is no longer necessary to call `imagemagick-register-types' |
| 1696 | explicitly to install ImageMagick image types; that function is called |
| 1697 | automatically at startup, or when customizing an imagemagick- option. |
| 1698 | |
| 1699 | *** Setting `imagemagick-types-inhibit' to t now disables the use of |
| 1700 | ImageMagick to view images. (You must call `imagemagick-register-types' |
| 1701 | afterwards if you do not use customize to change this.) |
| 1702 | |
| 1703 | *** The new variable `imagemagick-enabled-types' also affects which |
| 1704 | ImageMagick types are treated as images. The function |
| 1705 | `imagemagick-filter-types' returns the list of types that will be |
| 1706 | treated as images. |
| 1707 | |
| 1708 | ** Minibuffer |
| 1709 | |
| 1710 | *** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the |
| 1711 | next and previous path separator, respectively. |
| 1712 | |
| 1713 | *** `minibuffer-electric-default-mode' can shorten "(default ...)" to "[...]" |
| 1714 | in minibuffer prompts. Just set `minibuffer-eldef-shorten-default' |
| 1715 | non-nil before enabling the mode. |
| 1716 | |
| 1717 | ** Mode line |
| 1718 | |
| 1719 | *** New option `mode-line-default-help-echo' specifies the help text |
| 1720 | (shown in a tooltip or in the echo area) for any part of the mode line |
| 1721 | that does not have its own specialized help text. |
| 1722 | |
| 1723 | *** You can now click mouse-3 in the coding system indicator to invoke |
| 1724 | `set-buffer-file-coding-system'. |
| 1725 | |
| 1726 | ** Server and client |
| 1727 | |
| 1728 | *** emacsclient now obeys string values for `initial-buffer-choice', |
| 1729 | if it is told to open a new frame without specifying any file to visit |
| 1730 | or expression to evaluate. |
| 1731 | |
| 1732 | *** New option `server-auth-key' specifies a shared server key. |
| 1733 | |
| 1734 | ** Emacs now generates backtraces on fatal errors. |
| 1735 | On encountering a fatal error, Emacs now outputs a textual description |
| 1736 | of the fatal signal, and a short backtrace on platforms like glibc |
| 1737 | that support backtraces. |
| 1738 | |
| 1739 | ** `C-x C-q' is now bound to the new minor mode `read-only-mode'. |
| 1740 | This minor mode replaces `toggle-read-only', which is now obsolete. |
| 1741 | |
| 1742 | ** Most `y-or-n' prompts now allow you to scroll the selected window. |
| 1743 | Typing `C-v' or `M-v' at a y-or-n prompt scrolls forward or backward |
| 1744 | respectively, without exiting from the prompt. |
| 1745 | |
| 1746 | ** In the Package Menu, newly-available packages are listed as "new", |
| 1747 | and sorted above the other "available" packages by default. |
| 1748 | |
| 1749 | ** If your Emacs was built from a repository checkout, the new variable |
| 1750 | `emacs-bzr-version' contains information about the bzr revision used. |
| 1751 | |
| 1752 | ** New option `create-lockfiles' specifies usage of lockfiles. |
| 1753 | It defaults to t. Changing it to nil inhibits the creation of lock |
| 1754 | files (use this with caution). |
| 1755 | |
| 1756 | ** New option `enable-remote-dir-locals', if non-nil, allows directory-local |
| 1757 | variables on remote hosts. |
| 1758 | |
| 1759 | ** The entry for PCL-CVS has been removed from the Tools menu. |
| 1760 | The PCL-CVS commands are still available via the keyboard. |
| 1761 | |
| 1762 | ** Using "unibyte: t" in Lisp source files is obsolete. |
| 1763 | Use "coding: raw-text" instead. |
| 1764 | |
| 1765 | ** In the buffer made by `M-x report-emacs-bug', the `C-c m' binding |
| 1766 | has been changed to `C-c M-i' (`report-emacs-bug-insert-to-mailer'). |
| 1767 | The previous binding, introduced in Emacs 24.1, was a mistake, because |
| 1768 | `C-c LETTER' bindings are reserved for user customizations. |
| 1769 | |
| 1770 | ** Internationalization |
| 1771 | |
| 1772 | *** New language environment: Persian. |
| 1773 | |
| 1774 | *** New input method `vietnamese-vni'. |
| 1775 | |
| 1776 | ** Nextstep (GNUstep / Mac OS X) port |
| 1777 | |
| 1778 | *** Support for fullscreen and the frame parameter fullscreen. |
| 1779 | |
| 1780 | *** A file dialog is used for open/save operations initiated from the |
| 1781 | menu/toolbar. |
| 1782 | |
| 1783 | \f |
| 1784 | * Editing Changes in Emacs 24.3 |
| 1785 | |
| 1786 | ** Search and Replace |
| 1787 | |
| 1788 | *** Non-regexp Isearch now performs "lax" space matching. |
| 1789 | Each sequence of spaces in the supplied search string may match any |
| 1790 | sequence of one or more whitespace characters, as specified by the |
| 1791 | variable `search-whitespace-regexp'. (This variable is also used by a |
| 1792 | similar existing feature for regexp Isearch.) |
| 1793 | |
| 1794 | *** New Isearch command `M-s SPC' toggles lax space matching. |
| 1795 | This applies to both ordinary and regexp Isearch. |
| 1796 | |
| 1797 | *** New option `replace-lax-whitespace'. |
| 1798 | If non-nil, `query-replace' uses flexible whitespace matching too. |
| 1799 | The default is nil. |
| 1800 | |
| 1801 | *** Global `M-s _' starts a symbol (identifier) incremental search, |
| 1802 | and `M-s _' in Isearch toggles symbol search mode. |
| 1803 | `M-s c' in Isearch toggles search case-sensitivity. |
| 1804 | |
| 1805 | ** Navigation commands |
| 1806 | |
| 1807 | *** New binding `M-g c' for `goto-char'. |
| 1808 | |
| 1809 | *** New binding `M-g TAB' for `move-to-column'. |
| 1810 | |
| 1811 | *** `M-g TAB' (`move-to-column') prompts for a column number if called |
| 1812 | interactively with no prefix arg. Previously, it moved to column 1. |
| 1813 | |
| 1814 | ** New option `yank-handled-properties' allows processing of text |
| 1815 | properties on yanked text, in ways that are more general than just |
| 1816 | removing them (as is done by `yank-excluded-properties'). |
| 1817 | |
| 1818 | ** New option `delete-trailing-lines' specifies whether |
| 1819 | M-x delete-trailing-whitespace should delete trailing lines at the end |
| 1820 | of the buffer. It defaults to t. |
| 1821 | |
| 1822 | ** `C-u M-=' now counts lines/words/characters in the entire buffer. |
| 1823 | |
| 1824 | ** `C-x 8 RET' is now bound to `insert-char', which is now a command. |
| 1825 | `ucs-insert' is now an obsolete alias for `insert-char'. |
| 1826 | |
| 1827 | ** The `z' key no longer has a binding in most special modes. |
| 1828 | It used to be bound to `kill-this-buffer', but `z' is too easy to |
| 1829 | accidentally type. |
| 1830 | |
| 1831 | ** New command `C-x r M-w' (`copy-rectangle-as-kill'). |
| 1832 | It copies the region-rectangle as the last rectangle kill. |
| 1833 | |
| 1834 | ** Registers |
| 1835 | |
| 1836 | *** `C-x r +' is now overloaded to invoke `append-to-register'. |
| 1837 | |
| 1838 | *** New option `register-separator' specifies the register containing |
| 1839 | the text to put between collected texts for use with |
| 1840 | M-x append-to-register and M-x prepend-to-register. |
| 1841 | |
| 1842 | \f |
| 1843 | * Changes in Specialized Modes and Packages in Emacs 24.3 |
| 1844 | |
| 1845 | ** Common Lisp emulation (CL) |
| 1846 | |
| 1847 | *** CL's main entry is now (require 'cl-lib). |
| 1848 | `cl-lib' is like the old `cl' except that it uses the namespace cleanly; |
| 1849 | i.e., all its definitions have the "cl-" prefix (and internal definitions |
| 1850 | use the "cl--" prefix). |
| 1851 | |
| 1852 | If `cl' provided a feature under the name `foo', then `cl-lib' |
| 1853 | provides it under the name `cl-foo' instead; with the exceptions of the |
| 1854 | few `cl' definitions that had to use `foo*' to avoid conflicts with |
| 1855 | pre-existing Elisp entities. These have been renamed to `cl-foo' |
| 1856 | rather than `cl-foo*'. |
| 1857 | |
| 1858 | The old `cl' is now deprecated and is mainly just a bunch of aliases that |
| 1859 | provide the old, non-prefixed names. Some exceptions are listed below: |
| 1860 | |
| 1861 | *** `cl-flet' is not like `flet' (which is deprecated). |
| 1862 | Instead it obeys the behavior of Common-Lisp's `flet'. |
| 1863 | In particular, in cl-flet function definitions are lexically scoped, |
| 1864 | whereas in flet the scoping is dynamic. |
| 1865 | |
| 1866 | *** `cl-labels' is slightly different from `labels'. |
| 1867 | The difference is that it relies on the `lexical-binding' machinery |
| 1868 | (as opposed to the `lexical-let' machinery used previously) to capture |
| 1869 | definitions in closures, so such closures will only work if `lexical-binding' |
| 1870 | is in use. |
| 1871 | |
| 1872 | *** `cl-letf' is not exactly like `letf'. |
| 1873 | The only difference is in details that relate to some deprecated usage |
| 1874 | of `symbol-function' in place forms. |
| 1875 | |
| 1876 | *** `progv' was rewritten to use the `let' machinery. |
| 1877 | A side effect is that variables without corresponding values are bound |
| 1878 | to nil rather than being made unbound. |
| 1879 | |
| 1880 | *** The following methods of extending `setf' are obsolete |
| 1881 | (use features from gv.el instead): |
| 1882 | `define-modify-macro' (use `gv-letplace') |
| 1883 | `defsetf' (use `gv-define-simple-setter' or `gv-define-setter') |
| 1884 | `define-setf-expander' (use `gv-define-setter' or `gv-define-expander') |
| 1885 | `get-setf-method' no longer exists (see "Incompatible Lisp Changes") |
| 1886 | |
| 1887 | ** Diff mode |
| 1888 | |
| 1889 | *** Changes are now highlighted using the same color scheme as in |
| 1890 | modern VCSes. Deletions are displayed in red (new faces |
| 1891 | `diff-refine-removed' and `smerge-refined-removed', and new definition |
| 1892 | of `diff-removed'), insertions in green (new faces `diff-refine-added' |
| 1893 | and `smerge-refined-added', and new definition of `diff-added'). |
| 1894 | |
| 1895 | *** The variable `diff-use-changed-face' defines whether to use the |
| 1896 | face `diff-changed', or `diff-removed' and `diff-added' to highlight |
| 1897 | changes in context diffs. |
| 1898 | |
| 1899 | *** The new command `diff-delete-trailing-whitespace' removes trailing |
| 1900 | whitespace introduced by a diff. |
| 1901 | |
| 1902 | ** Ediff now uses the same color scheme as Diff mode. |
| 1903 | |
| 1904 | ** Python mode |
| 1905 | |
| 1906 | A new version of python.el, which provides several new features, including: |
| 1907 | per-buffer shells, better indentation, Python 3 support, and improved |
| 1908 | shell-interaction compatible with iPython (and virtually any other |
| 1909 | text based shell). |
| 1910 | |
| 1911 | *** Some user options have been replaced/renamed, including (old -> new): |
| 1912 | **** python-indent -> python-indent-offset |
| 1913 | **** python-guess-indent -> python-indent-guess-indent-offset |
| 1914 | **** python-pdbtrack-do-tracking-p -> python-pdbtrack-activate |
| 1915 | **** python-use-skeletons -> python-skeleton-autoinsert |
| 1916 | |
| 1917 | *** Some user options have been removed, including: |
| 1918 | |
| 1919 | **** `python-indent-string-contents': Strings are never indented. |
| 1920 | |
| 1921 | **** `python-honour-comment-indentation': |
| 1922 | Comments are always considered as indentation markers. |
| 1923 | |
| 1924 | **** `python-continuation-offset': Indentation is automatically |
| 1925 | calculated in a pep8 compliant way depending on the context. |
| 1926 | |
| 1927 | **** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist': |
| 1928 | Have no direct mapping as the shell interaction is completely different. |
| 1929 | |
| 1930 | **** `python-python-command', `python-jython-command': |
| 1931 | Replaced by `python-shell-interpreter'. |
| 1932 | |
| 1933 | **** `inferior-python-filter-regexp', `python-remove-cwd-from-path', |
| 1934 | `python-pdbtrack-minor-mode-string', `python-source-modes': |
| 1935 | No longer relevant. |
| 1936 | |
| 1937 | *** Some commands have been replaced (old -> new): |
| 1938 | **** python-insert-class -> python-skeleton-class |
| 1939 | **** python-insert-def -> python-skeleton-def |
| 1940 | **** python-insert-for -> python-skeleton-for |
| 1941 | **** python-insert-if -> python-skeleton-if |
| 1942 | **** python-insert-try/except -> python-skeleton-try |
| 1943 | **** python-insert-try/finally -> python-skeleton-try |
| 1944 | **** python-insert-while -> python-skeleton-while |
| 1945 | **** python-find-function -> python-nav-jump-to-defun |
| 1946 | **** python-next-statement -> python-nav-forward-sentence |
| 1947 | **** python-previous-statement -> python-nav-backward-sentence |
| 1948 | **** python-beginning-of-defun-function -> python-nav-beginning-of-defun |
| 1949 | **** python-end-of-defun-function -> python-nav-end-of-defun |
| 1950 | **** python-send-buffer -> python-shell-send-buffer |
| 1951 | **** python-send-defun -> python-shell-send-defun |
| 1952 | **** python-send-region -> python-shell-send-region |
| 1953 | **** python-send-region-and-go -> emulate with python-shell-send-region |
| 1954 | and python-shell-switch-to-shell |
| 1955 | **** python-send-string -> python-shell-send-string |
| 1956 | **** python-switch-to-python -> python-shell-switch-to-shell |
| 1957 | **** python-describe-symbol -> python-eldoc-at-point |
| 1958 | |
| 1959 | ** D-Bus |
| 1960 | |
| 1961 | *** New variables `dbus-compiled-version' and `dbus-runtime-version'. |
| 1962 | |
| 1963 | *** The D-Bus object manager interface is implemented. |
| 1964 | |
| 1965 | *** Variables of type :(u)int32 and :(u)int64 accept floating points, |
| 1966 | if their value does not fit into Emacs's integer range. |
| 1967 | |
| 1968 | *** The function `dbus-call-method' is now non-blocking. |
| 1969 | It can be interrupted by `C-g'. `dbus-call-method-non-blocking' is obsolete. |
| 1970 | |
| 1971 | *** Signals can also be sent as unicast messages. |
| 1972 | |
| 1973 | *** The argument list of `dbus-register-signal' has been extended, |
| 1974 | according to the new match rule types of D-Bus. |
| 1975 | |
| 1976 | *** `dbus-init-bus' supports private connections. |
| 1977 | |
| 1978 | *** There is a new function `dbus-setenv'. |
| 1979 | |
| 1980 | ** `desktop-path' no longer includes the "." directory. |
| 1981 | Desktop files are now located in ~/.emacs.d by default. |
| 1982 | |
| 1983 | ** Dired |
| 1984 | |
| 1985 | *** `dired-do-async-shell-command' executes each file sequentially |
| 1986 | if the command ends in `;' (when operating on multiple files). |
| 1987 | Otherwise, it executes the command on each file in parallel. |
| 1988 | |
| 1989 | *** Typing `M-n' in the minibuffer of `dired-do-chmod', `dired-do-chgrp', |
| 1990 | `dired-do-chown', and `dired-do-touch' yanks the attributes of the |
| 1991 | file at point. |
| 1992 | |
| 1993 | *** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'), |
| 1994 | `DEL' (`dired-unmark-backward'), and `d' (`dired-flag-file-deletion') |
| 1995 | mark/unmark/flag all files in the active region. |
| 1996 | |
| 1997 | *** The minibuffer default for `=' (`dired-diff') has changed. |
| 1998 | It is now the backup file for the file at point, if one exists. |
| 1999 | In Transient Mark mode the default is the file at the active mark. |
| 2000 | |
| 2001 | *** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers. |
| 2002 | The global binding for `M-=', `count-words-region' is in effect. |
| 2003 | |
| 2004 | ** ERC |
| 2005 | |
| 2006 | *** New module "notifications", which can send a notification when you |
| 2007 | receive a private message or your nickname is mentioned. |
| 2008 | |
| 2009 | *** ERC will look up server/channel names via auth-source and use any |
| 2010 | channel keys found. |
| 2011 | |
| 2012 | *** New option `erc-lurker-hide-list', similar to `erc-hide-list', but |
| 2013 | only applies to messages sent by lurkers. |
| 2014 | |
| 2015 | ** reStructuredText mode |
| 2016 | |
| 2017 | *** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling, |
| 2018 | fontification, comment handling, and customization have all been revised |
| 2019 | and improved. |
| 2020 | |
| 2021 | *** Support for `imenu' and `which-function-mode'. |
| 2022 | |
| 2023 | *** The reStructuredText syntax is more closely covered. |
| 2024 | Sphinx support has been improved. |
| 2025 | |
| 2026 | *** `rst-insert-list' inserts new list or continues existing lists. |
| 2027 | |
| 2028 | *** A negative prefix argument always works for `rst-adjust'. |
| 2029 | |
| 2030 | *** The window configuration is reset after displaying a TOC. |
| 2031 | |
| 2032 | *** The constant `rst-version' describes the rst.el package version. |
| 2033 | |
| 2034 | ** Ruby mode |
| 2035 | |
| 2036 | *** Support for percent literals and recognition of regular expressions |
| 2037 | in method calls without parentheses with more methods, including Cucumber |
| 2038 | steps definitions. |
| 2039 | |
| 2040 | *** Improved syntax highlighting and indentation. |
| 2041 | |
| 2042 | *** New command `ruby-toggle-block', bound to `C-c {'. |
| 2043 | |
| 2044 | *** Some non-standard keybindings/commands have been removed: |
| 2045 | |
| 2046 | **** `ruby-electric-brace'; use `electric-indent-mode' instead. |
| 2047 | |
| 2048 | **** `ruby-mark-defun'; use `mark-defun'. |
| 2049 | |
| 2050 | **** `ruby-beginning-of-defun' and `ruby-end-of-defun' are replaced by |
| 2051 | appropriate settings for the variables `beginning-of-defun-function' |
| 2052 | and `end-of-defun-function'. |
| 2053 | |
| 2054 | **** Non-standard keybindings for `backward-kill-word', `comment-region', |
| 2055 | `reindent-then-newline-and-indent' and `newline' have been removed. |
| 2056 | |
| 2057 | ** Shell Script mode |
| 2058 | |
| 2059 | *** Pairing of parens/quotes uses `electric-pair-mode' instead of skeleton-pair. |
| 2060 | |
| 2061 | *** `sh-electric-here-document-mode' now controls auto-insertion of here-docs. |
| 2062 | |
| 2063 | *** `sh-use-smie' lets you choose a new indentation and navigation code. |
| 2064 | |
| 2065 | ** VHDL mode |
| 2066 | |
| 2067 | *** The free software compiler GHDL is supported (and now the default). |
| 2068 | |
| 2069 | *** Support for the VHDL-AMS packages has been added/updated. |
| 2070 | |
| 2071 | *** Updated to the 2002 revision of the VHDL standard. |
| 2072 | |
| 2073 | *** Accepts \r and \f as whitespace. |
| 2074 | |
| 2075 | ** Apropos |
| 2076 | |
| 2077 | *** The faces used by Apropos are now directly customizable. |
| 2078 | These faces are named `apropos-symbol', `apropos-keybinding', and so on; |
| 2079 | see the `apropos' Custom group for details. |
| 2080 | |
| 2081 | *** The old options whose values specified faces to use have been removed |
| 2082 | (i.e. `apropos-symbol-face', `apropos-keybinding-face', `apropos-label-face', |
| 2083 | `apropos-match-face' and `apropos-property-face'.). |
| 2084 | |
| 2085 | ** Buffer Menu |
| 2086 | |
| 2087 | *** This package has been rewritten to use Tabulated List mode. |
| 2088 | |
| 2089 | *** Option `Buffer-menu-buffer+size-width' is now obsolete. |
| 2090 | Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead. |
| 2091 | |
| 2092 | ** Calc |
| 2093 | |
| 2094 | *** Algebraic simplification mode is now the default. |
| 2095 | To restrict to the limited simplifications given by the former |
| 2096 | default simplification mode, use `m I'. |
| 2097 | |
| 2098 | ** Calendar |
| 2099 | |
| 2100 | *** You can customize the header text that appears above each calendar month. |
| 2101 | See the variable `calendar-month-header'. |
| 2102 | |
| 2103 | *** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'. |
| 2104 | |
| 2105 | *** The calendars produced by cal-html include holidays. |
| 2106 | Customize `cal-html-holidays' to change this. |
| 2107 | |
| 2108 | ** CEDET |
| 2109 | |
| 2110 | *** The major modes from the parser generators "Bovine" and "Wisent" |
| 2111 | are now properly integrated in Emacs. The file suffixes ".by" and ".wy" |
| 2112 | are in `auto-mode-alist', and the corresponding manuals are included. |
| 2113 | |
| 2114 | *** EDE |
| 2115 | |
| 2116 | **** Menu support for the "Configuration" feature. This allows users to |
| 2117 | choose the active configuration (such as debug or install) from the menu. |
| 2118 | |
| 2119 | **** New command `ede-set' to interactively set project-local variables. |
| 2120 | |
| 2121 | **** Support for compiling, debugging, and running in "generic" projects. |
| 2122 | |
| 2123 | **** Autoconf editing support for M4 macros with complex arguments. |
| 2124 | |
| 2125 | **** Compilation support for the "linux" project type. |
| 2126 | |
| 2127 | **** "simple" projects have been removed; use "generic" projects instead. |
| 2128 | |
| 2129 | *** Semantic |
| 2130 | |
| 2131 | **** Support for parsing #include statements inside a namespace in C/C++. |
| 2132 | |
| 2133 | **** Improved support for 'extern "C"' declarations in C/C++. |
| 2134 | |
| 2135 | **** The ability to ignore more common special C/C++ preprocessor symbols, |
| 2136 | such as '__nonnull' and '__asm'. Add '__cplusplus' macro when parsing C++. |
| 2137 | If available, include cdefs.h as an additional source of preprocessor symbols. |
| 2138 | |
| 2139 | **** Improved C/C++ function pointer parsing. |
| 2140 | |
| 2141 | **** In Python, support for converting imports to include file names. |
| 2142 | |
| 2143 | **** Ability to dynamically determine the Python load path. |
| 2144 | |
| 2145 | **** Support for the Python 'WITH' and 'AT' keywords. |
| 2146 | |
| 2147 | **** Improved tooltip completion. |
| 2148 | |
| 2149 | *** SRecode |
| 2150 | |
| 2151 | **** The SRecode manual is now included. |
| 2152 | |
| 2153 | **** Tag generation supports constructor/destructor settings and system |
| 2154 | include differentiation. |
| 2155 | |
| 2156 | **** Addition of 'Framework' support: Frameworks are specified when a |
| 2157 | particular kind of library (such as Android) is needed in a common language |
| 2158 | mode (like Java). |
| 2159 | |
| 2160 | **** Support for nested templates and let variables override based on priority. |
| 2161 | |
| 2162 | **** Support for merging tables from multiple related modes, such as |
| 2163 | default -> c++ -> arduino. |
| 2164 | |
| 2165 | ** Compile has a new option `compilation-always-kill'. |
| 2166 | |
| 2167 | ** Customize |
| 2168 | |
| 2169 | *** `custom-reset-button-menu' now defaults to t. |
| 2170 | |
| 2171 | *** Non-option variables are never matched in `customize-apropos' and |
| 2172 | `customize-apropos-options' (i.e., the prefix argument does nothing for |
| 2173 | these commands now). |
| 2174 | |
| 2175 | ** Term |
| 2176 | |
| 2177 | *** The variables `term-default-fg-color' and `term-default-bg-color' |
| 2178 | are now deprecated in favor of the customizable face `term'. |
| 2179 | |
| 2180 | *** You can customize how to display ANSI terminal colors and styles |
| 2181 | by customizing the corresponding `term-color-<COLOR>', |
| 2182 | `term-color-underline' and `term-color-bold' faces. |
| 2183 | |
| 2184 | ** Tramp |
| 2185 | |
| 2186 | *** The syntax has been extended in order to allow ad-hoc proxy definitions. |
| 2187 | |
| 2188 | *** Remote processes are now also supported on remote MS-Windows hosts. |
| 2189 | |
| 2190 | ** URL |
| 2191 | |
| 2192 | *** Structs made by `url-generic-parse-url' have nil `attributes' slot. |
| 2193 | Previously, this slot stored semicolon-separated attribute-value pairs |
| 2194 | appended to some imap URLs, but this is not compatible with RFC 3986. |
| 2195 | So now the `filename' slot stores the entire path and query components, |
| 2196 | and the `attributes' slot is always nil. |
| 2197 | |
| 2198 | *** New function `url-encode-url' for encoding a URI string. |
| 2199 | The `url-retrieve' function now uses this to encode its URL argument, |
| 2200 | in case that is not properly encoded. |
| 2201 | |
| 2202 | ** notifications.el supports now version 1.2 of the Notifications API. |
| 2203 | The function `notifications-get-capabilities' returns the supported |
| 2204 | server properties. |
| 2205 | |
| 2206 | ** Flymake uses fringe bitmaps to indicate errors and warnings. |
| 2207 | See `flymake-fringe-indicator-position', `flymake-error-bitmap' and |
| 2208 | `flymake-warning-bitmap'. |
| 2209 | |
| 2210 | ** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings, |
| 2211 | specifying URL types that should be converted to remote file names at |
| 2212 | the FFAP prompt. The default is now '("ftp"). |
| 2213 | |
| 2214 | ** New Ibuffer `derived-mode' filter, bound to `/ M'. |
| 2215 | The old binding for `/ M' (filter by used-mode) is now bound to `/ m'. |
| 2216 | |
| 2217 | ** New option `mouse-avoidance-banish-position' specifies where the |
| 2218 | `banish' mouse avoidance setting moves the mouse. |
| 2219 | |
| 2220 | ** In Perl mode, new option `perl-indent-parens-as-block' causes non-block |
| 2221 | closing brackets to be aligned with the line of the opening bracket. |
| 2222 | |
| 2223 | ** In Proced mode, new command `proced-renice' renices marked processes. |
| 2224 | |
| 2225 | ** New option `async-shell-command-buffer' specifies the buffer to use |
| 2226 | for a new asynchronous `shell-command' when the default output buffer |
| 2227 | `*Async Shell Command*' is already in use. |
| 2228 | |
| 2229 | ** SQL mode has a new option `sql-db2-escape-newlines'. |
| 2230 | If non-nil, newlines sent to the command interpreter will be escaped |
| 2231 | by a backslash. The default does not escape the newlines and assumes |
| 2232 | that the sql statement will be terminated by a semicolon. |
| 2233 | |
| 2234 | ** New command `tabulated-list-sort', bound to `S' in Tabulated List mode |
| 2235 | (and modes that derive from it), sorts the column at point, or the Nth |
| 2236 | column if a numeric prefix argument is given. |
| 2237 | |
| 2238 | ** `which-func-modes' now defaults to t, so Which Function mode, when |
| 2239 | enabled, applies to all applicable major modes. |
| 2240 | |
| 2241 | ** `winner-mode-hook' now runs when the mode is disabled, as well as when |
| 2242 | it is enabled. |
| 2243 | |
| 2244 | ** Follow mode no longer works by using advice. |
| 2245 | The option `follow-intercept-processes' has been removed. |
| 2246 | |
| 2247 | ** `javascript-generic-mode' is now an obsolete alias for `js-mode'. |
| 2248 | |
| 2249 | ** Hooks renamed to avoid obsolete "-hooks" suffix: |
| 2250 | *** semantic-lex-reset-hooks -> semantic-lex-reset-functions |
| 2251 | *** semantic-change-hooks -> semantic-change-functions |
| 2252 | *** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions |
| 2253 | *** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions |
| 2254 | *** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions |
| 2255 | *** semanticdb-save-database-hooks -> semanticdb-save-database-functions |
| 2256 | *** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook |
| 2257 | *** rcirc-sentinel-hooks -> rcirc-sentinel-functions |
| 2258 | *** rcirc-receive-message-hooks -> rcirc-receive-message-functions |
| 2259 | *** rcirc-activity-hooks -> rcirc-activity-functions |
| 2260 | *** rcirc-print-hooks -> rcirc-print-functions |
| 2261 | *** dbus-event-error-hooks -> dbus-event-error-functions |
| 2262 | *** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions |
| 2263 | *** checkdoc-style-hooks -> checkdoc-style-functions |
| 2264 | *** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions |
| 2265 | *** archive-extract-hooks -> archive-extract-hook |
| 2266 | *** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook |
| 2267 | *** hfy-post-html-hooks -> hfy-post-html-hook |
| 2268 | *** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions |
| 2269 | *** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions |
| 2270 | *** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions |
| 2271 | *** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions |
| 2272 | |
| 2273 | ** Obsolete packages |
| 2274 | |
| 2275 | *** assoc.el |
| 2276 | In most cases, assoc+member+push+delq work just as well. |
| 2277 | And in any case it's just a terrible package: ugly semantics, terrible |
| 2278 | inefficiency, and not namespace-clean. |
| 2279 | *** bruce.el |
| 2280 | *** cust-print.el |
| 2281 | *** ledit.el |
| 2282 | *** mailpost.el |
| 2283 | *** mouse-sel.el |
| 2284 | *** patcomp.el |
| 2285 | |
| 2286 | \f |
| 2287 | * Incompatible Lisp Changes in Emacs 24.3 |
| 2288 | |
| 2289 | ** Docstrings starting with `*' no longer indicate user options. |
| 2290 | Only variables defined using `defcustom' are considered user options. |
| 2291 | The function `user-variable-p' is now an obsolete alias for |
| 2292 | `custom-variable-p'. |
| 2293 | |
| 2294 | ** The return values of `defalias', `defun' and `defmacro' have changed, |
| 2295 | and are now undefined. For backwards compatibility, `defun' and |
| 2296 | `defmacro' currently return the name of the newly defined |
| 2297 | function/macro, but this should not be relied upon. |
| 2298 | |
| 2299 | ** `random' by default now returns a different random sequence in |
| 2300 | every Emacs run. Use `(random S)', where S is a string, to set the |
| 2301 | random seed to a value based on S, in order to get a repeatable |
| 2302 | sequence in later calls. |
| 2303 | |
| 2304 | ** If the NEWTEXT arg to `replace-match' contains a substring "\?", |
| 2305 | that substring is inserted literally even if the LITERAL arg is |
| 2306 | non-nil, instead of causing an error to be signaled. |
| 2307 | |
| 2308 | ** `select-window' now always makes the window's buffer current. |
| 2309 | It does so even if the window was selected before. |
| 2310 | |
| 2311 | ** The function `x-select-font' can return a font spec, instead of a |
| 2312 | font name as a string. Whether it returns a font spec or a font name |
| 2313 | depends on the graphical library. |
| 2314 | |
| 2315 | ** `face-spec-set' no longer sets frame-specific attributes when the |
| 2316 | third argument is a frame (that usage was obsolete since Emacs 22.2). |
| 2317 | |
| 2318 | ** `set-buffer-multibyte' now signals an error in narrowed buffers. |
| 2319 | |
| 2320 | ** The CL package's `get-setf-method' function no longer exists. |
| 2321 | Generalized variables are now part of core Emacs Lisp, and implemented |
| 2322 | differently to the way cl.el used to do it. It is not possible to |
| 2323 | define a compatible replacement for `get-setf-method'. See the file |
| 2324 | gv.el for internal details of the new implementation. |
| 2325 | |
| 2326 | ** The arguments of `dbus-register-signal' are no longer just strings, |
| 2327 | but keywords or keyword-string pairs. The old argument list will |
| 2328 | still be supported for Emacs 24.x. |
| 2329 | |
| 2330 | ** Miscellaneous name changes |
| 2331 | Some Lisp symbols have been renamed to correct their spelling, |
| 2332 | or to be more consistent with standard Emacs terminology. |
| 2333 | |
| 2334 | *** Renamed functions |
| 2335 | **** hangul-input-method-inactivate -> hangul-input-method-deactivate |
| 2336 | **** inactivate-input-method -> deactivate-input-method |
| 2337 | **** quail-inactivate -> quail-deactivate |
| 2338 | **** robin-inactivate -> robin-deactivate |
| 2339 | **** viper-inactivate-input-method -> viper-deactivate-input-method |
| 2340 | **** viper-inactivate-input-method-action -> |
| 2341 | viper-deactivate-input-method-action |
| 2342 | **** ucs-input-inactivate -> ucs-input-deactivate |
| 2343 | |
| 2344 | *** Renamed hooks |
| 2345 | The old hooks are still supported for backward compatibility, but they |
| 2346 | are deprecated and will be removed eventually. |
| 2347 | **** input-method-inactivate-hook -> input-method-deactivate-hook |
| 2348 | **** robin-inactivate-hook -> robin-deactivate-hook |
| 2349 | **** quail-inactivate-hook -> quail-deactivate-hook |
| 2350 | |
| 2351 | *** Renamed variables |
| 2352 | **** follow-deactive-menu -> follow-inactive-menu |
| 2353 | **** inactivate-current-input-method-function -> |
| 2354 | deactivate-current-input-method-function |
| 2355 | |
| 2356 | ** Some obsolete functions, variables, and faces have been removed: |
| 2357 | *** `last-input-char', `last-command-char', `unread-command-char' |
| 2358 | *** `facemenu-unlisted-faces' |
| 2359 | *** `rmail-decode-mime-charset' |
| 2360 | *** `iswitchb-read-buffer' |
| 2361 | *** `sc-version', `sc-submit-bug-report' |
| 2362 | *** `set-char-table-default' |
| 2363 | *** `string-to-sequence' (use `string-to-list' or `string-to-vector') |
| 2364 | *** `compile-internal' |
| 2365 | *** `modeline' |
| 2366 | *** `mode-line-inverse-video' |
| 2367 | *** `follow-mode-off-hook' |
| 2368 | *** `cvs-commit-buffer-require-final-newline' |
| 2369 | (use `log-edit-require-final-newline' instead) |
| 2370 | *** `cvs-changelog-full-paragraphs' |
| 2371 | (use `log-edit-changelog-full-paragraphs' instead) |
| 2372 | *** `cvs-diff-ignore-marks', `cvs-diff-buffer-name' |
| 2373 | *** `vc-ignore-vc-files' (use `vc-handled-backends' instead) |
| 2374 | *** `vc-master-templates' (use `vc-handled-backends' instead) |
| 2375 | *** `vc-checkout-carefully' |
| 2376 | |
| 2377 | \f |
| 2378 | * Lisp Changes in Emacs 24.3 |
| 2379 | |
| 2380 | ** CL-style generalized variables are now in core Elisp. |
| 2381 | `setf' is autoloaded; `push' and `pop' accept generalized variables. |
| 2382 | You can define your own generalized variables using `gv-define-simple-setter', |
| 2383 | `gv-define-setter', etc. |
| 2384 | |
| 2385 | ** Emacs tries to macroexpand interpreted (non-compiled) files during load. |
| 2386 | This can significantly speed up execution of non-byte-compiled code, |
| 2387 | but can also bump into previously unnoticed cyclic dependencies. |
| 2388 | These are generally harmless: they will simply cause the macro calls |
| 2389 | to be left for later expansion (as before), but will result in a |
| 2390 | warning ("Eager macro-expansion skipped due to cycle") describing the cycle. |
| 2391 | You may wish to restructure your code so this does not happen. |
| 2392 | |
| 2393 | ** New sampling-based Elisp profiler. |
| 2394 | Try M-x profiler-start, do some work, and then call M-x profiler-report. |
| 2395 | When finished, use M-x profiler-stop. The sampling rate can be based on |
| 2396 | CPU time or memory allocations. |
| 2397 | |
| 2398 | ** `defun' also accepts a (declare DECLS) form, like `defmacro'. |
| 2399 | The interpretation of the DECLS is determined by `defun-declarations-alist'. |
| 2400 | |
| 2401 | ** New macros `setq-local' and `defvar-local'. |
| 2402 | |
| 2403 | ** Face underlining can now use a wave. |
| 2404 | |
| 2405 | ** `read-regexp' has a new argument HISTORY; the first argument PROMPT |
| 2406 | of `read-regexp' accepts a string ending with a colon and space, and its |
| 2407 | second argument DEFAULTS can be a list of strings accessible via `M-n' |
| 2408 | in the minibuffer ahead of other hard-coded useful regexp-related values. |
| 2409 | More commands use `read-regexp' now to read their regexp arguments. |
| 2410 | |
| 2411 | ** Completion |
| 2412 | |
| 2413 | *** New function `completion-table-with-quoting' to handle completion |
| 2414 | in the presence of quoting, such as file completion in shell buffers. |
| 2415 | |
| 2416 | *** New function `completion-table-subvert' to use an existing completion |
| 2417 | table, but with a different prefix. |
| 2418 | |
| 2419 | ** Debugger |
| 2420 | |
| 2421 | *** New error type and new function `user-error'. |
| 2422 | These do not trigger the debugger. |
| 2423 | |
| 2424 | *** New option `debugger-bury-or-kill', saying what to do with the |
| 2425 | debugger buffer when exiting debug. |
| 2426 | |
| 2427 | *** Set `debug-on-message' to enter the debugger when a certain |
| 2428 | message is displayed in the echo area. This can be useful when trying |
| 2429 | to work out which code is doing something. |
| 2430 | |
| 2431 | *** New var `inhibit-debugger', automatically set to prevent accidental |
| 2432 | recursive invocations. |
| 2433 | |
| 2434 | ** Window handling |
| 2435 | |
| 2436 | *** New command `fit-frame-to-buffer' adjusts the frame height to |
| 2437 | fit the contents. |
| 2438 | |
| 2439 | *** The command `fit-window-to-buffer' can adjust the frame height |
| 2440 | if the new option `fit-frame-to-buffer' is non-nil. |
| 2441 | |
| 2442 | *** New macro `with-temp-buffer-window', similar to |
| 2443 | `with-output-to-temp-buffer'. |
| 2444 | |
| 2445 | *** `temp-buffer-resize-mode' no longer resizes windows that have been |
| 2446 | reused. |
| 2447 | |
| 2448 | *** New option `switch-to-buffer-preserve-window-point' to restore a |
| 2449 | window's point when switching buffers. |
| 2450 | |
| 2451 | *** New display action alist entries `window-height' and `window-width' |
| 2452 | specify the size of new windows created by `display-buffer'. |
| 2453 | |
| 2454 | *** New display action alist entry `pop-up-frame-parameters', if |
| 2455 | non-nil, specifies frame parameters to give any newly-created frame. |
| 2456 | |
| 2457 | *** New display action alist entry `inhibit-switch-frame', if non-nil, |
| 2458 | tells display action functions to avoid changing which frame is |
| 2459 | selected. |
| 2460 | |
| 2461 | *** New display action alist entry `previous-window', if non-nil, |
| 2462 | specifies window to reuse in `display-buffer-in-previous-window'. |
| 2463 | |
| 2464 | *** New display action functions `display-buffer-below-selected', |
| 2465 | and `display-buffer-in-previous-window'. |
| 2466 | |
| 2467 | *** The functions `get-lru-window', `get-mru-window' and `get-largest-window' |
| 2468 | now accept a third argument to avoid choosing the selected window. |
| 2469 | |
| 2470 | *** Additional values recognized for option `window-combination-limit'. |
| 2471 | |
| 2472 | *** The following variables are obsolete, as they can be replaced by |
| 2473 | appropriate entries in the `display-buffer-alist' function introduced |
| 2474 | in Emacs 24.1: |
| 2475 | **** `dired-shrink-to-fit' |
| 2476 | **** `display-buffer-reuse-frames' |
| 2477 | **** `display-buffer-function' |
| 2478 | **** `special-display-buffer-names' |
| 2479 | **** `special-display-frame-alist' |
| 2480 | **** `special-display-function' |
| 2481 | **** `special-display-regexps' |
| 2482 | |
| 2483 | ** Time |
| 2484 | |
| 2485 | *** `current-time-string' no longer requires that its argument's year |
| 2486 | must be in the range 1000..9999. It now works with any year supported |
| 2487 | by the underlying C implementation. |
| 2488 | |
| 2489 | *** `current-time' now returns extended-format time stamps |
| 2490 | (HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds. |
| 2491 | PSEC is typically a multiple of 1000 on current machines. Other |
| 2492 | functions that use this format, such as `file-attributes' and |
| 2493 | `format-time-string', have been changed accordingly. Old-format time |
| 2494 | stamps are still accepted. |
| 2495 | |
| 2496 | *** The format of timers in `timer-list' and `timer-idle-list' is now |
| 2497 | [TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS]. |
| 2498 | The PSECS slot is new, and uses picosecond resolution. It can be |
| 2499 | accessed via the new `timer--psecs' accessor. |
| 2500 | |
| 2501 | *** Last-modified time stamps in undo lists now are of the form |
| 2502 | (t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS). |
| 2503 | |
| 2504 | ** EIEIO |
| 2505 | |
| 2506 | *** Improved security when handling persistent objects: |
| 2507 | |
| 2508 | **** `eieio-persistent-read' now features optional arguments for specifying |
| 2509 | the class to load, as well as a flag stating whether subclasses are allowed; |
| 2510 | if provided, other classes will be rejected by the reader. For |
| 2511 | compatibility with existing code, if the class is omitted only a |
| 2512 | warning is issued. |
| 2513 | |
| 2514 | **** New specialized reader for pulling in classes and signaling errors |
| 2515 | without evaluation of suspicious code. |
| 2516 | |
| 2517 | **** All slots that contain objects must have a :type. Slots with lists |
| 2518 | of objects must use a new type predicate for a list of an object type. |
| 2519 | |
| 2520 | *** Support for `find-function' and similar utilities, through the addition |
| 2521 | of filename support to generated symbols. |
| 2522 | |
| 2523 | ** Floating point functions now always return special values like NaN, |
| 2524 | instead of signaling errors, if given invalid args; e.g., (log -1.0). |
| 2525 | Previously, they returned NaNs on some platforms but signaled errors |
| 2526 | on others. The affected functions are acos, asin, tan, exp, expt, |
| 2527 | log, log10, sqrt, and mod. |
| 2528 | |
| 2529 | ** New fringe bitmap `exclamation-mark'. |
| 2530 | |
| 2531 | ** Miscellaneous changes to special forms and macros |
| 2532 | |
| 2533 | *** `defun' and `defmacro' are now macros rather than special forms. |
| 2534 | |
| 2535 | *** `kbd' is now a function rather than a macro. |
| 2536 | |
| 2537 | ** Miscellaneous new functions |
| 2538 | |
| 2539 | *** `set-temporary-overlay-map' sets up a temporary keymap that |
| 2540 | takes precedence over most other maps for a short while (normally one key). |
| 2541 | |
| 2542 | *** `autoloadp' tests if its argument is an autoloaded object. |
| 2543 | |
| 2544 | *** `autoload-do-load' performs the autoloading operation. |
| 2545 | |
| 2546 | *** `buffer-narrowed-p' tests if the buffer is narrowed. |
| 2547 | |
| 2548 | *** `file-name-base' returns a file name sans directory and extension. |
| 2549 | |
| 2550 | *** `function-get' fetches a function property, following aliases. |
| 2551 | |
| 2552 | *** `posnp' tests if an object is a `posn'. |
| 2553 | |
| 2554 | *** `system-users' returns the user names on the system. |
| 2555 | |
| 2556 | *** `system-groups' returns the group names on the system. |
| 2557 | |
| 2558 | *** `tty-top-frame' returns the topmost frame of a text terminal. |
| 2559 | |
| 2560 | ** The following functions and variables are obsolete: |
| 2561 | *** `automount-dir-prefix' (use `directory-abbrev-alist') |
| 2562 | *** `buffer-has-markers-at' |
| 2563 | *** `macro-declaration-function' (use `macro-declarations-alist') |
| 2564 | *** `window-system-version' (provides no useful information) |
| 2565 | *** `dired-pop-to-buffer' (use `dired-mark-pop-up') |
| 2566 | *** `query-replace-interactive' |
| 2567 | *** `font-list-limit' (has had no effect since Emacs < 23) |
| 2568 | |
| 2569 | \f |
| 2570 | * Changes in Emacs 24.3 on Non-Free Operating Systems |
| 2571 | |
| 2572 | ** Cygwin builds can use the native MS Windows user interface. |
| 2573 | Pass `--with-w32' to configure. The default remains the X11 interface. |
| 2574 | |
| 2575 | ** Two new functions are available in Cygwin builds: |
| 2576 | `cygwin-convert-file-name-from-windows' and |
| 2577 | `cygwin-convert-file-name-to-windows'. These functions allow Lisp |
| 2578 | code to access the Cygwin file-name mapping machinery to convert |
| 2579 | between Cygwin and Windows-native file and directory names. |
| 2580 | |
| 2581 | ** When invoked with the -nw switch to run on the Windows text-mode terminal, |
| 2582 | Emacs now supports `mouse-highlight', help-echo (in the echo area), and |
| 2583 | `mouse-autoselect-window'. |
| 2584 | |
| 2585 | ** On MS Windows Vista and later Emacs now supports symbolic links. |
| 2586 | |
| 2587 | ** On MS Windows, you can pass `--without-libxml2' to configure.bat to omit |
| 2588 | support for libxml2, even if its presence is detected. |
| 2589 | |
| 2590 | ** On Mac OS X, the Nextstep port requires OS X 10.4 or later. |
| 2591 | |
| 2592 | ** On Mac OS X, configure no longer automatically adds the Fink "/sw" |
| 2593 | directories to the search path. You must add them yourself if you want them. |
| 2594 | |
| 2595 | \f |
| 2596 | * Changes in Emacs 24.2 |
| 2597 | |
| 2598 | ** This is mainly a bug-fix release. |
| 2599 | |
| 2600 | \f |
| 2601 | * Installation Changes in Emacs 24.1 |
| 2602 | |
| 2603 | ** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3 |
| 2604 | to configure. Note that other libraries used by Emacs, RSVG and GConf, |
| 2605 | also depend on Gtk+. You can disable them with --without-rsvg and |
| 2606 | --without-gconf. |
| 2607 | |
| 2608 | ** Emacs can be compiled with GnuTLS support. |
| 2609 | This happens by default if a suitably recent version of the library is |
| 2610 | found at build time. To prevent this, use the configure option |
| 2611 | `--without-gnutls'. See below for GnuTLS features. |
| 2612 | |
| 2613 | ** Emacs can be compiled with SELinux support. |
| 2614 | This happens by default if a suitably recent version of the library is |
| 2615 | found at build time. To prevent this, use the configure option |
| 2616 | `--without-selinux'. See below for SELinux features. |
| 2617 | |
| 2618 | ** Emacs can be compiled with ImageMagick support. |
| 2619 | This happens by default if a suitably recent version of the library is |
| 2620 | found at build time. To prevent this, use the configure option |
| 2621 | `--without-imagemagick'. See below for ImageMagick features. |
| 2622 | This feature is not available for the Nextstep or MS ports. |
| 2623 | |
| 2624 | ** Emacs can be compiled with libxml2 support. |
| 2625 | This happens by default if a suitably recent version of the library is |
| 2626 | found at build time. To prevent this, use the configure option |
| 2627 | `--without-xml2'. See below for libxml2 features. |
| 2628 | |
| 2629 | ** By default, the installed Info and man pages are compressed. |
| 2630 | You can disable this by configuring --without-compress-info. |
| 2631 | |
| 2632 | ** New configure option --with-wide-int. |
| 2633 | With it, Emacs integers typically have 62 bits, even on 32-bit machines. |
| 2634 | On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB |
| 2635 | to about 2 GiB. |
| 2636 | |
| 2637 | ** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost. |
| 2638 | These provide no new functionality, they just remove the need to edit |
| 2639 | lib-src/Makefile by hand in order to use the associated features. |
| 2640 | |
| 2641 | ** New configure option --enable-use-lisp-union-type. |
| 2642 | This is only useful for Emacs developers to debug certain types of bugs. |
| 2643 | This is not a new feature; only the configure flag is new. |
| 2644 | |
| 2645 | ** The standalone programs digest-doc and sorted-doc are removed. |
| 2646 | Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'. |
| 2647 | |
| 2648 | ** The standalone program `fakemail' is removed. |
| 2649 | If you need it, feedmail.el provides a superset of the functionality. |
| 2650 | |
| 2651 | \f |
| 2652 | * Startup Changes in Emacs 24.1 |
| 2653 | |
| 2654 | ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte |
| 2655 | command line arguments, and the EMACS_UNIBYTE environment variable, no |
| 2656 | longer have any effect. (They were declared obsolete in Emacs 23.) |
| 2657 | |
| 2658 | ** New command line option `--no-site-lisp' removes site-lisp directories |
| 2659 | from load-path. -Q now implies this. This option does not affect the |
| 2660 | EMACSLOADPATH environment variable (and hence has no effect for |
| 2661 | Nextstep builds). |
| 2662 | |
| 2663 | \f |
| 2664 | * Changes in Emacs 24.1 |
| 2665 | |
| 2666 | ** Completion |
| 2667 | |
| 2668 | *** Many packages now use the `completion-at-point' command, |
| 2669 | rather than implementing separate completion commands. |
| 2670 | |
| 2671 | *** `completion-at-point' now handles tags and semantic completion. |
| 2672 | |
| 2673 | *** Completion in a non-minibuffer now tries to detect the end of completion |
| 2674 | and pops down the *Completions* buffer accordingly. |
| 2675 | |
| 2676 | *** New option `completion-cycle-threshold' allows completion cycling. |
| 2677 | |
| 2678 | *** New option `completion-category-overrides' for overriding the |
| 2679 | default completion style in certain circumstances. |
| 2680 | |
| 2681 | *** New completion style `substring'. |
| 2682 | |
| 2683 | *** Completion of buffer names uses `substring' completion by default. |
| 2684 | |
| 2685 | *** The option `widget-complete-field' has been removed. |
| 2686 | |
| 2687 | ** Mail changes |
| 2688 | |
| 2689 | *** The first time you try sending mail, Emacs asks for a mail method. |
| 2690 | This is implemented by a new default for `send-mail-function', which |
| 2691 | is `sendmail-query-once'. This offers to use the smtpmail package, or |
| 2692 | to use the old defaults relying on external mail facilities |
| 2693 | (`sendmail-send-it' on GNU/Linux and other Unix-like systems, and |
| 2694 | `mailclient-send-it' on Windows). |
| 2695 | |
| 2696 | *** Typing `C-c m' in the buffer made by `M-x report-emacs-bug' |
| 2697 | transfers the report to your desktop's preferred mail client, if there |
| 2698 | is one. This uses either the "xdg-email" utility, or Mac OS's "open" |
| 2699 | command. |
| 2700 | |
| 2701 | *** See Changes in Specialized Modes and Packages for SMTPmail changes |
| 2702 | and Mail mode changes |
| 2703 | |
| 2704 | ** Emacs server and client changes |
| 2705 | |
| 2706 | *** New option `server-port' specifies the port for TCP Emacs servers. |
| 2707 | |
| 2708 | *** New emacsclient argument -q/--quiet suppresses some status messages. |
| 2709 | |
| 2710 | *** New emacsclient argument --frame-parameters specifies the frame |
| 2711 | parameters of any newly-created graphical frame. |
| 2712 | |
| 2713 | *** If emacsclient shuts down due to Emacs signaling an error, |
| 2714 | its exit status is 1. |
| 2715 | |
| 2716 | *** New emacsclient argument --parent-id ID. |
| 2717 | This opens a client frame in parent X window ID, via XEmbed, similar |
| 2718 | to the --parent-id argument to Emacs. |
| 2719 | |
| 2720 | ** Internationalization changes |
| 2721 | |
| 2722 | *** Emacs now supports display and editing of bidirectional text. |
| 2723 | Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are |
| 2724 | displayed in the correct visual order as expected by users of those |
| 2725 | scripts. The display reordering is a "full bidirectionality" class |
| 2726 | implementation of the Unicode Bidirectional Algorithm (UBA). Buffers |
| 2727 | with no RTL text should look exactly the same as before. |
| 2728 | |
| 2729 | **** New buffer-local variable `bidi-display-reordering'. |
| 2730 | To disable display reordering in a buffer, change this to nil. |
| 2731 | |
| 2732 | **** New buffer-local variable `bidi-paragraph-direction'. |
| 2733 | If nil (the default), Emacs determines the base direction of each |
| 2734 | paragraph from its text, as specified by the UBA. Setting the value |
| 2735 | to `right-to-left' or `left-to-right' forces a base direction on each |
| 2736 | paragraph. |
| 2737 | |
| 2738 | Paragraphs with right-to-left base direction are displayed starting at |
| 2739 | the right window edge. |
| 2740 | |
| 2741 | *** Enhanced support for characters with no glyphs in available fonts, |
| 2742 | or, on text terminals, characters that cannot be encoded by the |
| 2743 | terminal coding system. The new option `glyphless-char-display-control' |
| 2744 | specifies how to display them: as a hexadecimal code in a box, a thin |
| 2745 | 1-pixel space, an empty box, etc. |
| 2746 | |
| 2747 | *** New input methods for Farsi and Bulgarian |
| 2748 | (farsi-isiri-9147, farsi-transliterate-banan, bulgarian-alt-phonetic). |
| 2749 | |
| 2750 | *** `nobreak-char-display' now also highlights Unicode hyphen chars |
| 2751 | (U+2010 and U+2011). |
| 2752 | |
| 2753 | *** New Hebrew translation of the Emacs Tutorial. |
| 2754 | Type `C-u C-h t' to choose it in case your language setup doesn't |
| 2755 | automatically select it. |
| 2756 | |
| 2757 | ** An Emacs Lisp package manager is now included. |
| 2758 | This is a convenient way to download and install additional packages, |
| 2759 | from a package repository at http://elpa.gnu.org. |
| 2760 | |
| 2761 | *** M-x list-packages shows a list of packages, which can be |
| 2762 | selected for installation. |
| 2763 | |
| 2764 | *** New command `describe-package', bound to `C-h P'. |
| 2765 | |
| 2766 | *** By default, all installed packages are loaded automatically when |
| 2767 | Emacs starts up. To disable this, set `package-enable-at-startup' to |
| 2768 | nil. To specify the packages to load, customize `package-load-list'. |
| 2769 | |
| 2770 | ** Custom theme changes |
| 2771 | |
| 2772 | *** New command `M-x customize-themes', which provides a convenient |
| 2773 | interface for enabling and disabling Custom themes. |
| 2774 | |
| 2775 | *** New option `custom-theme-load-path' is the load path for themes. |
| 2776 | Emacs no longer looks for Custom themes in `load-path'. The default |
| 2777 | value of `custom-theme-load-path' says to look for themes in |
| 2778 | `custom-theme-directory', followed by a subdirectory of |
| 2779 | `data-directory' named "themes/", which contains a small selection of |
| 2780 | built-in Custom themes. |
| 2781 | |
| 2782 | *** New option `custom-safe-themes' records known-safe theme files. |
| 2783 | If a theme is not in this list, Emacs queries before loading it, and |
| 2784 | offers to save the theme to `custom-safe-themes' automatically. By |
| 2785 | default, all themes included in Emacs are treated as safe. |
| 2786 | |
| 2787 | ** Improved GTK integration |
| 2788 | |
| 2789 | *** GTK scroll-bars are now placed on the right by default. |
| 2790 | The function `set-scroll-bar-mode' can change this. |
| 2791 | |
| 2792 | *** GTK tool bars can have just text, just images or images and text. |
| 2793 | Customize `tool-bar-style' to choose the style. On a Gnome desktop, |
| 2794 | the default is taken from desktop settings. |
| 2795 | |
| 2796 | *** GTK tool bars can be placed on any edge of the frame. |
| 2797 | The frame-parameter tool-bar-position controls this. It takes the |
| 2798 | values top, left, right or bottom. The Options => Show/Hide menu has |
| 2799 | entries for this. |
| 2800 | |
| 2801 | *** The default colors for selected text (the `region' face) are taken |
| 2802 | from the GTK theme when Emacs is built with GTK. |
| 2803 | |
| 2804 | *** Emacs uses GTK tooltips by default if built with GTK. |
| 2805 | You can disable this by changing `x-gtk-use-system-tooltips' to nil. |
| 2806 | |
| 2807 | ** Graphical interface changes |
| 2808 | |
| 2809 | *** On graphical displays, the mode-line no longer ends in dashes. |
| 2810 | Also, the first dash (which does not indicate anything) is just |
| 2811 | displayed as a space. |
| 2812 | |
| 2813 | *** `menu-bar-select-buffer-function' lets you choose another operation |
| 2814 | instead of `switch-to-buffer' when selecting an item in the Buffers menu. |
| 2815 | |
| 2816 | *** Lucid menus and dialogs can display antialiased fonts if Emacs is |
| 2817 | built with Xft. These fonts can be set via X resources, for example: |
| 2818 | Emacs.pane.menubar.font: Courier-12 |
| 2819 | |
| 2820 | ** Exiting changes |
| 2821 | |
| 2822 | *** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP, |
| 2823 | or if it receives a SIGINT signal in batch mode. |
| 2824 | |
| 2825 | *** `kill-emacs-hook' is now also run in batch mode. |
| 2826 | Third-party code which adds to `kill-emacs-hook' should check if they |
| 2827 | do the right thing in batch mode. |
| 2828 | |
| 2829 | ** Scrolling changes |
| 2830 | |
| 2831 | *** New scrolling commands `scroll-up-command' and `scroll-down-command' |
| 2832 | (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom |
| 2833 | of buffer at first key-press (instead they move to top/bottom of buffer) |
| 2834 | when `scroll-error-top-bottom' is non-nil. |
| 2835 | |
| 2836 | *** New option `scroll-error-top-bottom' (see above). |
| 2837 | |
| 2838 | *** New scrolling commands `scroll-up-line' and `scroll-down-line' |
| 2839 | scroll a line instead of full screen. |
| 2840 | |
| 2841 | *** New property `scroll-command' should be set on a command's symbol to |
| 2842 | define it as a scroll command affected by `scroll-preserve-screen-position'. |
| 2843 | |
| 2844 | *** If you customize `scroll-conservatively' to a value greater than 100, |
| 2845 | Emacs will never recenter point in the window when it scrolls due to |
| 2846 | cursor motion commands or commands that move point (e.f., `M-g M-g'). |
| 2847 | Previously, you needed to use `most-positive-fixnum' as the value of |
| 2848 | `scroll-conservatively' to achieve the same effect. |
| 2849 | |
| 2850 | *** "Aggressive" scrolling now honors the scroll margins. |
| 2851 | If you customize `scroll-up-aggressively' or |
| 2852 | `scroll-down-aggressively' and move point off the window, Emacs now |
| 2853 | scrolls the window so as to avoid positioning point inside the scroll |
| 2854 | margin. |
| 2855 | |
| 2856 | ** Basic SELinux support has been added. |
| 2857 | This requires Emacs to be linked with libselinux at build time. |
| 2858 | |
| 2859 | *** Emacs preserves the SELinux file context when backing up. |
| 2860 | Also, the function `copy-file' has an extra optional argument for |
| 2861 | preserving SELinux context, and the return value of `backup-buffer' |
| 2862 | now includes the SELinux context. |
| 2863 | |
| 2864 | *** New functions `file-selinux-context' and `set-file-selinux-context' |
| 2865 | get and set the SELinux context of a file. |
| 2866 | |
| 2867 | ** Trash changes |
| 2868 | |
| 2869 | *** `delete-by-moving-to-trash' now only affects commands that specify |
| 2870 | trashing. This avoids inadvertently trashing temporary files. |
| 2871 | |
| 2872 | *** Calling `delete-file' or `delete-directory' with a prefix argument |
| 2873 | now forces true deletion, regardless of `delete-by-moving-to-trash'. |
| 2874 | |
| 2875 | ** File- and directory-local variable changes |
| 2876 | |
| 2877 | *** You can stop directory local vars from applying to subdirectories. |
| 2878 | Add an element (subdirs . nil) to the alist portion of any variables |
| 2879 | settings to indicate that the section should not apply to |
| 2880 | subdirectories. |
| 2881 | |
| 2882 | *** Directory local variables can apply to some file-less buffers. |
| 2883 | Affected modes include dired, vc-dir, and log-edit. For example, |
| 2884 | adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will |
| 2885 | turn on `whitespace-mode' for *vc-diff* buffers. Modes should call |
| 2886 | `hack-dir-local-variables-non-file-buffer' to support this. |
| 2887 | |
| 2888 | *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated. |
| 2889 | Instead, use "eval: (minor-mode 1)". |
| 2890 | |
| 2891 | *** The variable `inhibit-first-line-modes-regexps' has been renamed |
| 2892 | to `inhibit-local-variables-regexps'. As the name suggests, it now |
| 2893 | applies to ALL file local variables, not just -*- lines. The |
| 2894 | associated `inhibit-first-line-modes-suffixes' has been renamed in the |
| 2895 | corresponding way. |
| 2896 | |
| 2897 | ** Window changes |
| 2898 | |
| 2899 | *** The `quit-window' command now restores the last buffer displayed |
| 2900 | in the quitted window. |
| 2901 | |
| 2902 | *** Resizing an Emacs frame now preserves proportional window sizes, |
| 2903 | modulo restrictions like window minimum sizes and fixed-size windows. |
| 2904 | |
| 2905 | *** The behavior of `display-buffer' is now customizable in detail. |
| 2906 | |
| 2907 | **** New option `display-buffer-base-action' specifies a list of |
| 2908 | user-determined display "actions" (functions and optional arguments |
| 2909 | for choosing the displaying window). |
| 2910 | |
| 2911 | This takes precedence over the default display action, which is |
| 2912 | specified by `display-buffer-fallback-action'. |
| 2913 | |
| 2914 | **** New option `display-buffer-alist' maps buffer name regexps to |
| 2915 | display actions, taking precedence over `display-buffer-base-action'. |
| 2916 | |
| 2917 | *** New option `window-combination-limit'. |
| 2918 | The new option `window-combination-limit' allows to return the space |
| 2919 | obtained for resizing or creating a window more reliably to the window |
| 2920 | from which such space was obtained. |
| 2921 | |
| 2922 | *** New option `window-combination-resize'. |
| 2923 | The new option `window-combination-resize' allows to split a window that |
| 2924 | otherwise cannot be split because it's too small by stealing space from |
| 2925 | other windows in the same combination. Subsequent resizing or deletion |
| 2926 | of the window will resize all windows in the same combination as well. |
| 2927 | |
| 2928 | *** New option `frame-auto-hide-function' lets you choose between |
| 2929 | iconifying or deleting a frame when burying a buffer in a dedicated |
| 2930 | frame, or quitting a window showing a buffer in a frame of its own. |
| 2931 | |
| 2932 | *** New commands `maximize-window' and `minimize-window'. |
| 2933 | These maximize and minimize the size of a window within its frame. |
| 2934 | |
| 2935 | *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'. |
| 2936 | These functions allow to navigate through the live buffers that have |
| 2937 | been shown in a specific window. |
| 2938 | |
| 2939 | ** Minibuffer changes |
| 2940 | |
| 2941 | *** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'. |
| 2942 | This is handy for minibuffer-only frames, and is also used for the feature |
| 2943 | where mouse-1 pops up *Messages*"', which can now easily be changed. |
| 2944 | |
| 2945 | *** Minibuffers set `truncate-lines' to nil. |
| 2946 | If you want to change the value to something else, you could use |
| 2947 | for example `minibuffer-setup-hook'. |
| 2948 | |
| 2949 | ** `auto-mode-case-fold' is now enabled by default. |
| 2950 | |
| 2951 | ** `backup-by-copying-when-mismatch' now defaults to t. |
| 2952 | |
| 2953 | ** New basic faces `error', `warning', `success'. |
| 2954 | These are used to highlight text indicating failure, caution or |
| 2955 | successful operation. |
| 2956 | |
| 2957 | ** New option `list-colors-sort' defines the color sort order |
| 2958 | for `list-colors-display'. |
| 2959 | |
| 2960 | ** The variable `focus-follows-mouse' now always defaults to nil. |
| 2961 | |
| 2962 | \f |
| 2963 | * Editing Changes in Emacs 24.1 |
| 2964 | |
| 2965 | ** Search changes |
| 2966 | |
| 2967 | *** C-y in Isearch is now bound to `isearch-yank-kill', instead of |
| 2968 | `isearch-yank-line'. |
| 2969 | |
| 2970 | *** M-y in Isearch is now bound to `isearch-yank-pop', instead of |
| 2971 | `isearch-yank-kill'. |
| 2972 | |
| 2973 | *** M-s C-e in Isearch is now bound to `isearch-yank-line'. |
| 2974 | |
| 2975 | ** New commands `count-words-region' and `count-words'. |
| 2976 | |
| 2977 | *** M-= is bound to `count-words-region', not `count-lines-region'. |
| 2978 | The `count-words-region' command, when called interactively, reports |
| 2979 | the number of lines, words, and characters in the region. It is a |
| 2980 | superset of the old `count-lines-region', which is now an obsolete |
| 2981 | alias for it. |
| 2982 | |
| 2983 | ** The command `just-one-space' (M-SPC), if given a negative argument, |
| 2984 | also deletes newlines around point. |
| 2985 | |
| 2986 | ** Deletion changes |
| 2987 | |
| 2988 | *** New option `delete-active-region'. |
| 2989 | If non-nil, [delete] and DEL delete the region if it is active and no |
| 2990 | prefix argument is given. If set to `kill', those commands kill |
| 2991 | instead. |
| 2992 | |
| 2993 | *** New command `delete-forward-char', bound to [delete]. |
| 2994 | This is meant for interactive use, and obeys `delete-active-region'. |
| 2995 | The command `delete-char' does not obey `delete-active-region'. |
| 2996 | |
| 2997 | *** `delete-backward-char' is now a Lisp function. |
| 2998 | Apart from obeying `delete-active-region', its behavior is unchanged. |
| 2999 | However, the byte compiler now warns if it is called from Lisp; Lisp |
| 3000 | callers should use delete-char with a negative argument instead. |
| 3001 | |
| 3002 | *** The option `mouse-region-delete-keys' has been deleted. |
| 3003 | |
| 3004 | ** Selection changes. |
| 3005 | |
| 3006 | The default handling of clipboard and primary selections has been |
| 3007 | changed to conform with modern X applications. In short, most |
| 3008 | commands for killing and yanking text now use the clipboard, while |
| 3009 | mouse commands use the primary selection. |
| 3010 | |
| 3011 | In the following, we provide a list of these changes, followed by a |
| 3012 | list of steps to get the old behavior back if you prefer that. |
| 3013 | |
| 3014 | *** `select-active-regions' now defaults to t. |
| 3015 | Merely selecting text (e.g. with drag-mouse-1) no longer puts it in |
| 3016 | the kill ring. The selected text is put in the primary selection, if |
| 3017 | the system possesses a separate primary selection facility (e.g. X). |
| 3018 | |
| 3019 | **** `select-active-regions' also accepts a new value, `only'. |
| 3020 | This means to only set the primary selection for temporarily active |
| 3021 | regions (usually made by mouse-dragging or shift-selection); |
| 3022 | "ordinary" active regions, such as those made with C-SPC followed by |
| 3023 | point motion, do not alter the primary selection. |
| 3024 | |
| 3025 | **** `mouse-drag-copy-region' now defaults to nil. |
| 3026 | |
| 3027 | *** mouse-2 is now bound to `mouse-yank-primary'. |
| 3028 | This pastes from the primary selection, ignoring the kill-ring. |
| 3029 | Previously, mouse-2 was bound to `mouse-yank-at-click'. |
| 3030 | |
| 3031 | *** `x-select-enable-clipboard' now defaults to t on all platforms. |
| 3032 | |
| 3033 | *** `x-select-enable-primary' now defaults to nil. |
| 3034 | Thus, commands that kill text or copy it to the kill-ring (such as |
| 3035 | M-w, C-w, and C-k) also use the clipboard---not the primary selection. |
| 3036 | |
| 3037 | **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now |
| 3038 | exactly equivalent to M-w, C-w, and C-y respectively. |
| 3039 | |
| 3040 | **** Note that on MS-Windows, `x-select-enable-clipboard' was already |
| 3041 | non-nil by default, as Windows does not support the primary selection |
| 3042 | between applications. |
| 3043 | |
| 3044 | *** To return to the previous behavior, do the following: |
| 3045 | |
| 3046 | **** Change `select-active-regions' to nil. |
| 3047 | **** Change `mouse-drag-copy-region' to t. |
| 3048 | **** Change `x-select-enable-primary' to t (on X only). |
| 3049 | **** Change `x-select-enable-clipboard' to nil. |
| 3050 | **** Bind `mouse-yank-at-click' to mouse-2. |
| 3051 | |
| 3052 | *** Support for X cut buffers has been removed. |
| 3053 | |
| 3054 | *** X clipboard managers are now supported. |
| 3055 | To inhibit this, change `x-select-enable-clipboard-manager' to nil. |
| 3056 | |
| 3057 | ** New command `C-x r N' (`rectangle-number-lines') numbers the lines |
| 3058 | in the current rectangle. With a prefix argument, this prompts for a |
| 3059 | number to count from and for a format string. |
| 3060 | |
| 3061 | ** `redisplay-dont-pause' now defaults to t. |
| 3062 | This makes Emacs feel more responsive to editing commands that arrive |
| 3063 | at high rate, e.g. if you lean on some key, because stopping redisplay |
| 3064 | in the middle (when this variable is nil) forces more expensive |
| 3065 | updates later on, and Emacs appears to be unable to keep up. |
| 3066 | |
| 3067 | ** The behavior of <TAB> for active regions in Text mode has changed. |
| 3068 | In Text and related modes, typing <TAB> (`indent-for-tab-command') |
| 3069 | when the region is active causes Emacs to indent all the lines in the |
| 3070 | region, aligning them with the line previous to the first line in the |
| 3071 | region (or with the left margin if there is no previous line). |
| 3072 | |
| 3073 | ** When `occur' is called with a prefix argument, matching strings are |
| 3074 | collected into the `*Occur*' buffer without line numbers. If there |
| 3075 | are parenthesized subexpressions in the specified regexp, `occur' |
| 3076 | reads replacement text that may contain \\& and \\N whose convention |
| 3077 | follows `replace-match'. |
| 3078 | |
| 3079 | \f |
| 3080 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
| 3081 | |
| 3082 | ** Archive Mode has basic support for browsing and updating 7z archives. |
| 3083 | |
| 3084 | ** BibTeX mode |
| 3085 | |
| 3086 | *** BibTeX mode now supports biblatex. |
| 3087 | Use the variable `bibtex-dialect' to select different BibTeX dialects. |
| 3088 | `bibtex-entry-field-alist' is now an obsolete alias for |
| 3089 | `bibtex-BibTeX-entry-alist'. |
| 3090 | |
| 3091 | *** New command `bibtex-search-entries', bound to C-c C-a. |
| 3092 | |
| 3093 | *** New `bibtex-entry-format' option `sort-fields', disabled by default. |
| 3094 | |
| 3095 | *** New variable `bibtex-search-entry-globally'. |
| 3096 | |
| 3097 | ** Browse-url |
| 3098 | |
| 3099 | *** New option `browse-url-mailto-function' specifies how to handle "mailto:"s. |
| 3100 | |
| 3101 | *** The default browser used by the package is now the "xdg-open" program, |
| 3102 | on platforms that support it. This calls your desktop's preferred browser. |
| 3103 | |
| 3104 | ** Calc |
| 3105 | |
| 3106 | *** Support for musical notes. |
| 3107 | |
| 3108 | *** Support for logarithmic units. |
| 3109 | |
| 3110 | *** No longer uses the tex prefix for TeX specific unit names when |
| 3111 | using TeX or LaTeX mode. |
| 3112 | |
| 3113 | *** New option to highlight selections using faces. |
| 3114 | |
| 3115 | *** `calc-histogram' has the option of using a vector to determine the bins. |
| 3116 | |
| 3117 | *** New "O" option prefix. |
| 3118 | |
| 3119 | *** Use the "O" prefix to "d r" (`calc-radix') to turn on twos-complement mode. |
| 3120 | |
| 3121 | ** Calendar, Diary, and Appt |
| 3122 | |
| 3123 | *** Diary entries can contain non-printing "comments". |
| 3124 | See the variable `diary-comment-start'. |
| 3125 | |
| 3126 | *** Appointments can specify their individual warning times. |
| 3127 | See the variable `appt-warning-time-regexp'. |
| 3128 | |
| 3129 | *** The function specified by `appt-disp-window-function' may be passed |
| 3130 | lists of arguments if multiple appointments are due at similar times. |
| 3131 | If you are using a custom function for this, you should update it. |
| 3132 | |
| 3133 | *** New function `diary-hebrew-birthday'. |
| 3134 | |
| 3135 | *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array' |
| 3136 | may no longer be nil, but must all be strings. |
| 3137 | |
| 3138 | *** The obsolete (since Emacs 22.1) method of enabling the appt |
| 3139 | package by adding `appt-make-list' to `diary-hook' has been removed. |
| 3140 | Use `appt-activate' instead. |
| 3141 | |
| 3142 | *** Some appt variables (obsolete since Emacs 22.1) have been removed: |
| 3143 | appt-issue-message (use the function appt-activate) |
| 3144 | appt-visible/appt-msg-window (use the variable appt-display-format) |
| 3145 | |
| 3146 | *** Some diary function aliases (obsolete since Emacs 22.1) have been removed: |
| 3147 | view-diary-entries, list-diary-entries, show-all-diary-entries |
| 3148 | |
| 3149 | ** CC Mode |
| 3150 | |
| 3151 | *** New feature to "guess" the style in an existing buffer. |
| 3152 | The main entry point is M-x c-guess. |
| 3153 | |
| 3154 | *** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang). |
| 3155 | |
| 3156 | *** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes. |
| 3157 | Thus C-M-a will, by default, go to the beginning of the immediate function, |
| 3158 | not the top level. |
| 3159 | |
| 3160 | *** "Macros with semicolons" can be registered for correct indentation. |
| 3161 | Where such a macro ends a line (no semicolon) the next statement is no longer |
| 3162 | parsed as a statement continuation. |
| 3163 | |
| 3164 | ** Comint and modes derived from it use the standard completion code. |
| 3165 | |
| 3166 | ** Compilation mode |
| 3167 | |
| 3168 | *** Compilation mode can be used without Font Lock mode. |
| 3169 | `compilation-parse-errors-function' is now obsolete. |
| 3170 | |
| 3171 | *** New variable `compilation-filter-start', which is bound while |
| 3172 | `compilation-filter-hook' runs. It records the start position of the |
| 3173 | text inserted by `compilation-filter'. |
| 3174 | |
| 3175 | *** `compilation-error-screen-columns' and `compilation-first-column' |
| 3176 | are obeyed in the editing buffer. So programming language modes can |
| 3177 | set them, whereas previously only the value in the *Compilation* |
| 3178 | buffer was used. |
| 3179 | |
| 3180 | ** Customize |
| 3181 | |
| 3182 | *** Customize buffers now contain a search field. |
| 3183 | The search is performed using `customize-apropos'. |
| 3184 | To turn off the search field, set `custom-search-field' to nil. |
| 3185 | |
| 3186 | *** Options in customize group buffers start out hidden if not customized. |
| 3187 | Use the arrow to the left of the option name to toggle visibility. |
| 3188 | |
| 3189 | *** custom-buffer-sort-alphabetically now defaults to t. |
| 3190 | |
| 3191 | *** The color widget now has a "Choose" button, which allows you to |
| 3192 | choose a color via `list-colors-display'. |
| 3193 | |
| 3194 | ** D-Bus |
| 3195 | |
| 3196 | *** It is now possible to access buses other than the default system |
| 3197 | or session bus. |
| 3198 | |
| 3199 | *** The `dbus-register-method' and `dbus-register-property' functions |
| 3200 | optionally do not register names. |
| 3201 | |
| 3202 | *** The new function `dbus-register-service' registers a known service |
| 3203 | name on a D-Bus without also registering a property or a method. |
| 3204 | |
| 3205 | ** Dired-x |
| 3206 | |
| 3207 | *** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'), |
| 3208 | if called with a prefix argument, read a file name from the minibuffer |
| 3209 | instead of using the current buffer. |
| 3210 | |
| 3211 | *** The "dired local variables" feature of Dired-x is obsolete. |
| 3212 | The standard directory local variables feature replaces it. |
| 3213 | |
| 3214 | ** ERC changes |
| 3215 | |
| 3216 | *** New options `erc-autojoin-timing' and `erc-autojoin-delay', |
| 3217 | controlling attempts to autojoin a channel. |
| 3218 | |
| 3219 | *** New variable `erc-coding-system-precedence': If we use `undecided' |
| 3220 | as the server coding system, this variable will then be consulted. |
| 3221 | The default is to decode strings that can be decoded as utf-8 as |
| 3222 | utf-8, and do the normal `undecided' decoding for the rest. |
| 3223 | |
| 3224 | ** Eshell changes |
| 3225 | |
| 3226 | *** The default value of `eshell-directory-name' has changed |
| 3227 | to be an "eshell" directory in `user-emacs-directory'. |
| 3228 | The old "~/.eshell/" directory is still used if it exists, though. |
| 3229 | |
| 3230 | ** gdb-mi |
| 3231 | |
| 3232 | *** The M-x gdb command now uses the GDB Machine Interface protocol. |
| 3233 | It now supports multithread non-stop debugging and simultaneous |
| 3234 | debugging of several threads. |
| 3235 | |
| 3236 | ** Image mode |
| 3237 | |
| 3238 | *** RET (`image-toggle-animation') toggles animation, if applicable. |
| 3239 | Animation plays once, unless the option `image-animate-loop' is non-nil. |
| 3240 | |
| 3241 | ** Info |
| 3242 | |
| 3243 | *** New command M-x info-display-manual displays a named Info manual. |
| 3244 | If that manual is already visited in some Info buffer, it displays |
| 3245 | that buffer. (This is handy if you have many manuals in many *info* |
| 3246 | buffers, and don't remember the name of the buffer visiting the manual |
| 3247 | you want to consult.) Otherwise, it loads and displays the manual. |
| 3248 | |
| 3249 | *** `e' is now bound to `end-of-buffer' rather than to `Info-edit'. |
| 3250 | This is for compatibility with the stand-alone Info reader program, |
| 3251 | and also because `Info-edit' is a rarely used command that is disabled |
| 3252 | by default. |
| 3253 | |
| 3254 | ** Mail mode changes (not Message mode) |
| 3255 | |
| 3256 | *** New command M-x mail-add-attachment for adding MIME attachments |
| 3257 | |
| 3258 | *** The command M-x mail-attach-file was renamed to M-x mail-insert-file. |
| 3259 | (Its name is misleading, since it has nothing to do with MIME |
| 3260 | attachments.) The old name is now an obsolete alias to the new name. |
| 3261 | |
| 3262 | ** MH-E has been updated to MH-E version 8.3.1. |
| 3263 | See MH-E-NEWS for details. |
| 3264 | |
| 3265 | ** Modula-2 mode provides auto-indentation. |
| 3266 | |
| 3267 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
| 3268 | |
| 3269 | ** nXML mode no longer binds C-RET to `nxml-complete'. |
| 3270 | Completion is now performed via `completion-at-point', bound to C-M-i |
| 3271 | or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the |
| 3272 | default), this performs tag completion. |
| 3273 | |
| 3274 | ** Org mode has been updated to version 7.8.09. |
| 3275 | See ORG-NEWS for details. |
| 3276 | |
| 3277 | ** Prolog mode has been completely revamped, with lots of additional |
| 3278 | functionality such as more intelligent indentation, electricity, |
| 3279 | support for more variants, including Mercury, and a lot more. |
| 3280 | |
| 3281 | ** Rmail |
| 3282 | |
| 3283 | *** The command `rmail-epa-decrypt' decrypts OpenPGP data |
| 3284 | in the Rmail incoming message. |
| 3285 | |
| 3286 | *** The variable `rmail-message-filter' no longer has any effect. |
| 3287 | This change was made in Emacs 23.1 but was not advertised at the time. |
| 3288 | Try using `rmail-show-message-hook' instead. |
| 3289 | |
| 3290 | ** Shell mode |
| 3291 | |
| 3292 | *** M-x shell prompts for the shell path name if the default directory |
| 3293 | is a remote file name and neither the environment variable $ESHELL nor |
| 3294 | the variable `explicit-shell-file-name' is set. |
| 3295 | |
| 3296 | *** TAB is now bound to the standard `completion-at-point' command, |
| 3297 | which now implements the pcomplete rules for shell command completion. |
| 3298 | |
| 3299 | ** SMTPmail |
| 3300 | |
| 3301 | *** SMTPmail now uses encrypted connections (via STARTTLS) by default |
| 3302 | if the mail server supports them. This uses either built-in GnuTLS |
| 3303 | support, or the starttls.el library. Customize `smtpmail-stream-type' |
| 3304 | to change this. |
| 3305 | |
| 3306 | *** The variable `smtpmail-auth-credentials' has been removed. |
| 3307 | By default, the information is now stored in the file ~/.authinfo. |
| 3308 | This was the default value of smtpmail-auth-credentials. If you had |
| 3309 | customized smtpmail-auth-credentials to a list of user names and |
| 3310 | passwords, those settings are not used. During your first connection |
| 3311 | to the smtp server, Emacs will prompt for the user name and password, |
| 3312 | and offer to save them to ~/.authinfo. Or you can manually copy the |
| 3313 | credentials to ~/.authinfo. For example, if you had |
| 3314 | |
| 3315 | (setq smtpmail-auth-credentials |
| 3316 | '(("mail.example.org" 25 "jim" "s!cret"))) |
| 3317 | |
| 3318 | then the equivalent line in ~/.authinfo would be |
| 3319 | |
| 3320 | machine mail.example.org port 25 login jim password s!cret |
| 3321 | |
| 3322 | See the auth-source manual for more information, e.g. on encrypting |
| 3323 | the credentials file. |
| 3324 | |
| 3325 | *** The variable `smtpmail-starttls-credentials' has been removed. |
| 3326 | If you had that set, you need to put |
| 3327 | |
| 3328 | machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert" |
| 3329 | |
| 3330 | in your ~/.authinfo file instead. |
| 3331 | |
| 3332 | *** SMTPmail defaults to using the address in the From: header as the |
| 3333 | SMTP MAIL FROM envelope. To override this, set `mail-envelope-from' |
| 3334 | to the address you wish to use instead. |
| 3335 | |
| 3336 | ** SQL mode |
| 3337 | |
| 3338 | *** New options `sql-port', `sql-connection-alist', `sql-send-terminator', |
| 3339 | and `sql-oracle-scan-on'. |
| 3340 | |
| 3341 | *** New options controlling prompting for login parameters. |
| 3342 | Each supported product has a custom variable `sql-*-login-params', |
| 3343 | which is a list of the parameters to be prompted for before a |
| 3344 | connection is established. |
| 3345 | |
| 3346 | *** The command `sql-product-interactive' now takes a prefix argument, |
| 3347 | which causes it to prompt for an SQL product. |
| 3348 | |
| 3349 | *** Product-specific SQL interactive commands now take prefix arguments. |
| 3350 | These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.), |
| 3351 | given a prefix argument, prompt for a name for the SQL interactive |
| 3352 | buffer. This reduces the need for calling `sql-rename-buffer'. |
| 3353 | |
| 3354 | *** SQL interactive modes suppress command continuation prompts, and |
| 3355 | replace tabs with spaces. The first change impacts multiple line SQL |
| 3356 | statements entered with C-j between each line, statements yanked into |
| 3357 | the buffer and statements sent with `sql-send-*' functions. The |
| 3358 | second prevents the MySQL and Postgres interpreters from listing |
| 3359 | object name completions when sent text via `sql-send-*' functions. |
| 3360 | |
| 3361 | *** New command `sql-connect' starts a predefined SQLi session, |
| 3362 | using the login parameters from `sql-connection-alist'. |
| 3363 | |
| 3364 | *** New "Save Connection" menu item in SQLi buffers. |
| 3365 | This gathers the login params specified for the SQLi session, if it |
| 3366 | was not started by a connection, and saves them as a new connection. |
| 3367 | |
| 3368 | *** New commands for listing database objects and details: |
| 3369 | sql-list-all and sql-list-table. |
| 3370 | |
| 3371 | *** An API for manipulating SQL product definitions has been added. |
| 3372 | |
| 3373 | ** TeX modes |
| 3374 | |
| 3375 | *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly. |
| 3376 | |
| 3377 | ** Tramp |
| 3378 | |
| 3379 | *** New inline access method "ksu" (kerberized su). |
| 3380 | |
| 3381 | *** The following access methods are discontinued: "ssh1_old", |
| 3382 | "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish". |
| 3383 | |
| 3384 | *** The user option `remote-file-name-inhibit-cache' controls whether |
| 3385 | remote file attributes are cached for better performance. |
| 3386 | |
| 3387 | *** The option `ange-ftp-binary-file-name-regexp' has changed its |
| 3388 | default value to "". |
| 3389 | |
| 3390 | *** Handlers for `file-selinux-context' and `set-file-selinux-context' |
| 3391 | for remote machines which support SELinux. |
| 3392 | |
| 3393 | ** New function `url-queue-retrieve', which behaves like url-retrieve, |
| 3394 | but with limits (`url-queue-parallel-processes', `url-queue-timeout') on |
| 3395 | the degree of parallelism. |
| 3396 | |
| 3397 | ** VC and related modes |
| 3398 | |
| 3399 | *** Support for pulling on distributed version control systems. |
| 3400 | The command C-x v + (`vc-pull') runs a "pull" operation, if it is |
| 3401 | supported (currently with Bzr, Git, and Mercurial), to update the |
| 3402 | current branch and working tree. A prefix argument means to prompt |
| 3403 | the user for specifics, e.g. a pull location. |
| 3404 | |
| 3405 | *** `vc-update' is now an alias for `vc-pull'. |
| 3406 | |
| 3407 | *** Support for merging on distributed version control systems. |
| 3408 | The command C-x v m (`vc-merge') now runs a "merge" operation, if it |
| 3409 | is supported (currently with Bzr, Git, and Mercurial), to merge |
| 3410 | changes from another branch into the current one. It prompts for |
| 3411 | specifics, e.g. a merge source. |
| 3412 | |
| 3413 | *** New option `vc-revert-show-diff' controls whether `vc-revert' |
| 3414 | shows a diff while querying the user. It defaults to t. |
| 3415 | |
| 3416 | *** Log entries in some Log View buffers can be toggled to display a |
| 3417 | longer description by typing RET (log-view-toggle-entry-display). |
| 3418 | This is currently supported for Bzr, Git, and Mercurial (to support |
| 3419 | another backend, define a `log-view-expanded-log-entry-function'). |
| 3420 | In the Log View buffers made by C-x v L (`vc-print-root-log'), you can |
| 3421 | use this to display the full log entry for the revision at point. |
| 3422 | |
| 3423 | *** New command `vc-ediff' allows visual comparison of two revisions |
| 3424 | of a file similar to `vc-diff', but using ediff backend. |
| 3425 | |
| 3426 | *** The option `vc-initial-comment' was removed in Emacs 23.2, but |
| 3427 | this was not advertised at the time. |
| 3428 | |
| 3429 | *** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'. |
| 3430 | Since Emacs 23, it has done the same thing as `toggle-read-only', but |
| 3431 | this was not advertised at the time. |
| 3432 | |
| 3433 | ** Obsolete modes |
| 3434 | |
| 3435 | *** abbrevlist.el |
| 3436 | |
| 3437 | *** erc-hecomplete.el (use erc-pcomplete.el instead) |
| 3438 | |
| 3439 | *** partial-completion-mode (complete.el) is obsolete. |
| 3440 | You can get a comparable behavior with: |
| 3441 | (setq completion-styles '(partial-completion initials)) |
| 3442 | (setq completion-pcm-complete-word-inserts-delimiters t) |
| 3443 | |
| 3444 | *** pc-mode.el is obsolete (CUA mode is much more comprehensive). |
| 3445 | |
| 3446 | *** pgg is obsolete (use EasyPG instead). |
| 3447 | |
| 3448 | *** sregex.el is obsolete, since rx.el is a strict superset. |
| 3449 | |
| 3450 | *** s-region.el and pc-select.el are obsolete. |
| 3451 | They are superseded by shift-select-mode, enabled by default since 23.1. |
| 3452 | |
| 3453 | *** vc-mcvs.el is obsolete (for lack of a maintainer). |
| 3454 | |
| 3455 | ** Miscellaneous |
| 3456 | |
| 3457 | *** The Landmark game is now invoked with `landmark', not `lm'. |
| 3458 | Its functions and variables have been similarly renamed. |
| 3459 | |
| 3460 | *** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'. |
| 3461 | (This interfered with cua-mode.) |
| 3462 | |
| 3463 | *** f90.el has some support for Fortran 2008 syntax. |
| 3464 | |
| 3465 | *** `copyright-fix-years' can optionally convert consecutive years to ranges. |
| 3466 | |
| 3467 | *** New command `nato-region' converts text to NATO phonetic alphabet. |
| 3468 | |
| 3469 | \f |
| 3470 | * New Modes and Packages in Emacs 24.1 |
| 3471 | |
| 3472 | ** Occur Edit mode applies edits made in *Occur* buffers to the |
| 3473 | original buffers. It is bound to "e" in Occur mode. |
| 3474 | |
| 3475 | ** New global minor mode electric-pair-mode. |
| 3476 | When enabled, typing an open parenthesis automatically inserts the |
| 3477 | matching closing one. |
| 3478 | |
| 3479 | ** New global minor mode electric-indent-mode. |
| 3480 | When enabled, typing certain characters triggers reindentation. |
| 3481 | Major modes wishing to use this can set electric-indent-chars or |
| 3482 | electric-indent-functions. |
| 3483 | |
| 3484 | ** New global minor mode electric-layout-mode. |
| 3485 | When enabled, typing certain characters automatically inserts newlines. |
| 3486 | Major modes wishing to use this can set electric-layout-rules. |
| 3487 | |
| 3488 | ** tabulated-list.el provides a generic major mode for tabulated data, |
| 3489 | from which other modes can be derived. |
| 3490 | |
| 3491 | ** pcase.el provides the ML-style pattern matching macro `pcase'. |
| 3492 | |
| 3493 | ** secrets.el is an implementation of the Secret Service API, an |
| 3494 | interface to password managers like GNOME Keyring or KDE Wallet. The |
| 3495 | Secret Service API requires D-Bus for communication. The command |
| 3496 | `secrets-show-secrets' offers a buffer with a visualization of the |
| 3497 | secrets. |
| 3498 | |
| 3499 | ** notifications.el provides an implementation of the Desktop |
| 3500 | Notifications API. It requires D-Bus for communication. |
| 3501 | |
| 3502 | ** soap-client.el supports access to SOAP web services from Emacs. |
| 3503 | soap-inspect.el is an interactive inspector for SOAP WSDL structures. |
| 3504 | |
| 3505 | ** New generic mode, xmodmap-generic-mode, for xmodmap files. |
| 3506 | |
| 3507 | ** New emacs-lock.el package. |
| 3508 | The previous version has been moved to obsolete/old-emacs-lock.el. |
| 3509 | Now, there is a proper minor mode `emacs-lock-mode'. Protection |
| 3510 | against exiting Emacs and killing the buffer can be set separately. |
| 3511 | The mechanism for automatically turning off protection for buffers |
| 3512 | with dead inferior processes has been generalized. |
| 3513 | |
| 3514 | \f |
| 3515 | * Incompatible Lisp Changes in Emacs 24.1 |
| 3516 | |
| 3517 | ** Passing a nil argument to a minor mode function call now ENABLES |
| 3518 | the minor mode unconditionally. This is so that you can write e.g. |
| 3519 | |
| 3520 | (add-hook 'text-mode-hook 'foo-mode) |
| 3521 | |
| 3522 | to enable foo-mode in Text mode buffers, removing the need for |
| 3523 | `turn-on-foo-mode' style functions. This affects all mode commands |
| 3524 | defined by `define-minor-mode'. If called interactively, the mode |
| 3525 | command still toggles the minor mode. |
| 3526 | |
| 3527 | ** The return value of `backup-buffer' has changed. |
| 3528 | It is now a list of three elements, where the second element is a list |
| 3529 | describing the original file's SELinux context. If Emacs or the |
| 3530 | system lacks SELinux support, the context list is (nil nil nil nil). |
| 3531 | See "Basic SELinux support" above, under "Changes in Emacs 24.1". |
| 3532 | |
| 3533 | ** `char-direction-table' and the `char-direction' function were deleted. |
| 3534 | They were buggy and inferior to the new support of bidirectional |
| 3535 | editing introduced in Emacs 24. If you need the bidirectional |
| 3536 | properties of a character, use `get-char-code-property' with the last |
| 3537 | argument `bidi-class'. |
| 3538 | |
| 3539 | ** `copy-directory' now copies the source directory as a subdirectory |
| 3540 | of the target directory, if the latter is an existing directory. The |
| 3541 | new optional arg COPY-CONTENTS, if non-nil, makes the function copy |
| 3542 | the contents directly into a pre-existing target directory. |
| 3543 | |
| 3544 | ** For mouse click input events in the text area, the Y pixel |
| 3545 | coordinate in the POSITION list now counts from the top of the text |
| 3546 | area, excluding any header line. Previously, it counted from the top |
| 3547 | of the header line. |
| 3548 | |
| 3549 | ** Support for "old-style" backquotes, obsolete for 10+ years, has |
| 3550 | been further reduced. Now a backquote not followed by a space is |
| 3551 | always treated as a "new-style" backquote. Please remove all |
| 3552 | "old-style" backquotes from your code. If your code uses backquotes |
| 3553 | as documented in the Elisp manual, and compiles without warning, then |
| 3554 | you have nothing to do in this regard. Code not following the |
| 3555 | appropriate conventions may fail to compile. |
| 3556 | |
| 3557 | The most common cause of trouble seems to be an old-style backquote |
| 3558 | followed by a newline. Another cause of trouble is vector notation |
| 3559 | for key sequence notation: instead of [(control ,)] and [(control ')], |
| 3560 | you should write [(control ?,)] and [(control ?')], which will work in |
| 3561 | older Emacsen too. |
| 3562 | |
| 3563 | ** The macro `eval-at-startup' was removed in Emacs 23.2, but this |
| 3564 | was not advertised at the time. The function `custom-initialize-delay' |
| 3565 | replaced all known uses. |
| 3566 | |
| 3567 | ** `view-buffer' now treats special mode-class in the same way that |
| 3568 | `view-file' has since Emacs 22 (i.e. it won't enable View mode if the |
| 3569 | major mode is special). |
| 3570 | |
| 3571 | ** Menu and tool bar changes |
| 3572 | |
| 3573 | *** During startup, Emacs no longer adds entries for `menu-bar-lines' |
| 3574 | and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'. |
| 3575 | With these alist entries omitted, `make-frame' checks the value of the |
| 3576 | variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create |
| 3577 | a menu-bar or tool-bar, respectively. If the alist entries are added, |
| 3578 | they override the value of `menu-bar-mode'/`tool-bar-mode'. |
| 3579 | |
| 3580 | *** The menu bar bindings's caches are not used any more. |
| 3581 | Use (where-is-internal <def> nil t) instead. |
| 3582 | |
| 3583 | ** Regions created by mouse dragging are now normal active regions, |
| 3584 | similar to those created by shift-selection (see Selection changes |
| 3585 | above). In previous Emacs versions, these regions were delineated by |
| 3586 | `mouse-drag-overlay'; that variable has been removed. |
| 3587 | |
| 3588 | ** The fourth argument of `filter-buffer-substring' has been removed. |
| 3589 | If you want to remove text properties from the final result, simply |
| 3590 | pass the result through substring-no-properties. |
| 3591 | |
| 3592 | ** cl.el no longer provides `cl-19'. |
| 3593 | |
| 3594 | ** The following obsolete functions and aliases have been removed |
| 3595 | (the appropriate new function is given in parentheses; "not needed" |
| 3596 | means you can just remove all calls to the function in question): |
| 3597 | |
| 3598 | *** `comint-kill-output' (`comint-delete-output') |
| 3599 | *** `decompose-composite-char' (`char-to-string') |
| 3600 | *** `outline-visible' (`outline-invisible-p') |
| 3601 | *** `internal-find-face' (`facep') |
| 3602 | *** `internal-get-face' (`facep and check-face') |
| 3603 | *** `frame-update-faces' (not needed) |
| 3604 | *** `frame-update-face-colors' (`frame-set-background-mode') |
| 3605 | *** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions) |
| 3606 | *** `x-make-font-bold' and `x-make-font-demibold' (`make-face-bold') |
| 3607 | *** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic') |
| 3608 | *** `x-make-font-bold-italic' (`make-face-bold-italic') |
| 3609 | *** `x-make-font-unbold' (`make-face-unbold') |
| 3610 | *** `x-make-font-unitalic' (`make-face-unitalic') |
| 3611 | *** `mldrag-drag-mode-line' (`mouse-drag-mode-line') |
| 3612 | *** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line') |
| 3613 | *** `iswitchb-default-keybindings' (`iswitchb-mode') |
| 3614 | *** `char-bytes' (== 1) |
| 3615 | *** `isearch-return-char' (`isearch-printing-char') |
| 3616 | *** `make-local-hook' (not needed) |
| 3617 | *** `set-screen-height' (`set-frame-height') |
| 3618 | *** `set-screen-width' (`set-frame-width') |
| 3619 | |
| 3620 | ** The following obsolete variables and varaliases have been removed |
| 3621 | (the appropriate new variable is given in parentheses): |
| 3622 | |
| 3623 | *** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map') |
| 3624 | *** `vc-header-alist' (`vc-BACKEND-header') |
| 3625 | *** `directory-sep-char' (== ?/) |
| 3626 | *** `font-lock-defaults-alist' (`font-lock-defaults') |
| 3627 | *** `e' (`float-e'). |
| 3628 | |
| 3629 | ** The following obsolete files were removed: |
| 3630 | sc.el, x-menu.el, rnews.el, rnewspost.el |
| 3631 | |
| 3632 | ** The format of the finder-inf.el file has changed, since the Finder |
| 3633 | mechanism is now based on the package system. The variable |
| 3634 | `finder-package-info' is replaced by `package--builtins' and |
| 3635 | `finder-keywords-hash'. |
| 3636 | |
| 3637 | ** When generating autoloads, `update-directory-autoloads' no longer |
| 3638 | assumes every inspected file is in your `load-path'. It instead |
| 3639 | generates relative names according to the current `load-path'. |
| 3640 | |
| 3641 | \f |
| 3642 | * Lisp Changes in Emacs 24.1 |
| 3643 | |
| 3644 | ** Code can now use lexical scoping by default instead of dynamic scoping. |
| 3645 | The `lexical-binding' variable enables lexical scoping for local |
| 3646 | variables. It is typically set via a file-local variable in the first |
| 3647 | line of the file, in which case it applies to all the code in that |
| 3648 | file. |
| 3649 | |
| 3650 | *** `eval' takes a new optional argument `lexical' to choose the new lexical |
| 3651 | binding instead of the old dynamic binding mode. |
| 3652 | |
| 3653 | *** Lexically scoped interpreted functions are represented with a new form |
| 3654 | of function value which looks like (closure ENV ARGS &rest BODY). |
| 3655 | |
| 3656 | *** New macro `letrec' to define recursive local functions. |
| 3657 | |
| 3658 | *** `defvar' and `defconst' now mark the variable as special (dynamic). |
| 3659 | So do `defcustom' and other forms that call `defvar' as a subroutine. |
| 3660 | |
| 3661 | *** New function `special-variable-p' to check whether a variable is |
| 3662 | declared as dynamically bound. |
| 3663 | |
| 3664 | *** The form ((lambda ...) ...) is deprecated. |
| 3665 | |
| 3666 | ** An Emacs Lisp testing tool is now included. |
| 3667 | Emacs Lisp developers can use this tool to write automated tests for |
| 3668 | their code. See the ERT info manual for details. |
| 3669 | |
| 3670 | ** Changes for bidirectional display and editing |
| 3671 | |
| 3672 | *** New function `current-bidi-paragraph-direction'. |
| 3673 | This returns the base direction of the paragraph at point. |
| 3674 | |
| 3675 | *** New function `bidi-string-mark-left-to-right'. |
| 3676 | Given a string containing characters from right-to-left scripts, this |
| 3677 | function returns another string which can be safely inserted into a |
| 3678 | buffer, such that any following text will be always displayed to the |
| 3679 | right of that string. (This works by appending an invisible Unicode |
| 3680 | "LEFT-TO-RIGHT MARK" character if the argument string might need it.) |
| 3681 | |
| 3682 | This is useful when the buffer has overall left-to-right paragraph |
| 3683 | direction and you need to insert a string whose contents are not known |
| 3684 | in advance, without disrupting the layout of the line. |
| 3685 | |
| 3686 | ** Window changes |
| 3687 | |
| 3688 | *** Window tree functions are accessible in Elisp. |
| 3689 | Functions are provided to return the parent, siblings or child windows |
| 3690 | of any window including internal windows (windows not associated with a |
| 3691 | buffer) in the window tree. |
| 3692 | |
| 3693 | **** New function `window-valid-p' gives non-nil for live and internal |
| 3694 | windows. |
| 3695 | |
| 3696 | **** Window manipulation can deal with internal windows. |
| 3697 | Many window handling functions like `split-window', `delete-window', or |
| 3698 | `delete-other-windows' as well as the window resizing functions can now |
| 3699 | act on any window including internal ones. |
| 3700 | |
| 3701 | *** window-total-height/-width vs window-body-height/-width. |
| 3702 | The function `window-height' has been renamed to `window-total-height' |
| 3703 | and `window-width' has been renamed to `window-body-width'. The old |
| 3704 | names are provided as aliases. Two new functions `window-total-width' |
| 3705 | and `window-body-height' are provided. |
| 3706 | |
| 3707 | *** Window parameters specific to window handling functions. |
| 3708 | For each window you can specify a parameter to override the default |
| 3709 | behavior of a number of functions like `split-window', `delete-window' |
| 3710 | and `delete-other-windows'. The variable `ignore-window-parameters' |
| 3711 | allows to ignore processing such parameters. |
| 3712 | |
| 3713 | *** New semantics of third argument of `split-window'. |
| 3714 | The third argument of `split-window' has been renamed to SIDE and can be |
| 3715 | set to any of the values 'below, 'right, 'above, or 'left to make the |
| 3716 | new window appear on the corresponding side of the window that shall be |
| 3717 | split. Any other value of SIDE will cause `split-window' to split the |
| 3718 | window into two side-by-side windows as before. |
| 3719 | |
| 3720 | *** Window resizing functions. |
| 3721 | A new standard function for resizing windows called `window-resize' has |
| 3722 | been introduced. This and all other functions for resizing windows no |
| 3723 | longer delete any windows when they become too small. |
| 3724 | |
| 3725 | *** Deleting the selected window now selects the most recently selected |
| 3726 | live window on that frame instead. |
| 3727 | |
| 3728 | *** `adjust-window-trailing-edge' adjustments. |
| 3729 | `adjust-window-trailing-edge' can now deal with fixed-size windows and |
| 3730 | is able to resize other windows if a window adjacent to the trailing |
| 3731 | edge cannot be shrunk any more. This makes its behavior more similar to |
| 3732 | that of Emacs 21 without compromising, however, its inability to delete |
| 3733 | windows which was introduced in Emacs 22. |
| 3734 | |
| 3735 | *** Window-local buffer lists. |
| 3736 | Windows now have local buffer lists. This means that removing a buffer |
| 3737 | from display in a window will preferably show the buffer previously |
| 3738 | shown in that window with its previous window-start and window-point |
| 3739 | positions. This also means that the same buffer may be automatically |
| 3740 | shown twice even if it already appears in another window. |
| 3741 | |
| 3742 | *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW, |
| 3743 | which if non-nil requires the buffer to be displayed in the currently |
| 3744 | selected window, signaling an error otherwise. If nil, another window |
| 3745 | can be used, e.g. if the selected one is strongly dedicated. |
| 3746 | |
| 3747 | *** `split-window-vertically' and `split-window-horizontally' renamed |
| 3748 | to `split-window-below' and `split-window-right' respectively. |
| 3749 | The old names are kept as aliases. |
| 3750 | |
| 3751 | *** Display actions |
| 3752 | |
| 3753 | **** The second arg to `display-buffer' and `pop-to-buffer' is now |
| 3754 | named ACTION, and takes a display action of the same form as |
| 3755 | `display-buffer-base-action' (see Changes, above). A non-nil, |
| 3756 | non-list value is treated specially, as the old meaning. |
| 3757 | |
| 3758 | **** New variable `display-buffer-overriding-action'. |
| 3759 | |
| 3760 | **** The procedure of `display-buffer' etc. to choose a window is |
| 3761 | determined by combining `display-buffer-overriding-action', |
| 3762 | `display-buffer-alist', the ACTION arg, `display-buffer-base-action', |
| 3763 | and `display-buffer-fallback-action'. The second and fourth of these |
| 3764 | are user-customizable variables. |
| 3765 | |
| 3766 | See the docstring of `display-buffer' for details. |
| 3767 | |
| 3768 | *** New functions `window-state-get' and `window-state-put'. |
| 3769 | These functions allow to save and restore the state of an arbitrary |
| 3770 | frame or window as an Elisp object. |
| 3771 | |
| 3772 | ** Completion |
| 3773 | |
| 3774 | *** New variable `completion-extra-properties' used to specify extra |
| 3775 | properties of the current completion: |
| 3776 | - :annotate-function, same as the old completion-annotate-function. |
| 3777 | - :exit-function, function to call after completion took place. |
| 3778 | |
| 3779 | *** Functions on `completion-at-point-functions' can return any of the |
| 3780 | properties valid for `completion-extra-properties'. |
| 3781 | |
| 3782 | *** `completion-annotate-function' is obsolete. |
| 3783 | |
| 3784 | *** New `metadata' method for completion tables. The metadata thus returned |
| 3785 | can specify various details of the data returned by `all-completions': |
| 3786 | - `category' is the kind of objects returned (e.g., `buffer', `file', ...), |
| 3787 | used to select a style in completion-category-overrides. |
| 3788 | - `annotation-function' to add annotations in *Completions*. |
| 3789 | - `display-sort-function' to specify how to sort entries in *Completions*. |
| 3790 | - `cycle-sort-function' to specify how to sort entries when cycling. |
| 3791 | |
| 3792 | *** `minibuffer-local-filename-must-match-map' is not used any more. |
| 3793 | Instead, the bindings in `minibuffer-local-filename-completion-map' |
| 3794 | are combined with `minibuffer-local-must-match-map'. |
| 3795 | |
| 3796 | *** New variable `completing-read-function' allows overriding the |
| 3797 | behavior of `completing-read'. |
| 3798 | |
| 3799 | ** `glyphless-char-display' can now distinguish between graphical and |
| 3800 | text terminal display, via a char-table entry that is a cons cell. |
| 3801 | |
| 3802 | ** `pre-command-hook'/`post-command-hook' are not reset to nil on error. |
| 3803 | Instead, the offending function is removed. |
| 3804 | |
| 3805 | ** New hook types |
| 3806 | |
| 3807 | *** New function `run-hook-wrapped' for running an abnormal hook by |
| 3808 | passing the hook functions as arguments to a "wrapping" function. |
| 3809 | Like `run-hook-with-args-until-success', it stops at the first |
| 3810 | non-nil return value. |
| 3811 | |
| 3812 | *** New macro `with-wrapper-hook' for running an abnormal hook as a |
| 3813 | set of "wrapping" filters, similar to around advice. |
| 3814 | (A version of this macro was actually added in Emacs 23.2 but was not |
| 3815 | advertised at the time.) |
| 3816 | |
| 3817 | ** Debugger changes |
| 3818 | |
| 3819 | *** New macro `condition-case-unless-debug' (this was actually added in |
| 3820 | Emacs 23.1 as condition-case-no-debug, but not advertised) |
| 3821 | |
| 3822 | *** The macro `with-demoted-errors' was added in Emacs 23.1, but not advertised. |
| 3823 | |
| 3824 | *** Variable `stack-trace-on-error' removed. |
| 3825 | |
| 3826 | *** The debugger can now "continue" from an error, which means it will |
| 3827 | jump to the error handler as if the debugger had not been invoked |
| 3828 | instead of jumping all the way to the top-level. |
| 3829 | |
| 3830 | *** Set `debug-on-event' to enter the debugger on events like SIGUSR1. |
| 3831 | This can be useful when `inhibit-quit' is set. |
| 3832 | |
| 3833 | ** The new function `server-eval-at' allows evaluation of Lisp forms on |
| 3834 | named Emacs server instances. |
| 3835 | |
| 3836 | ** `call-process' and `call-process-region' allow a `(:file "file")' spec |
| 3837 | to redirect STDOUT to a file. |
| 3838 | |
| 3839 | ** The function `format-time-string' now supports the %N directive, |
| 3840 | for higher-resolution time stamps. |
| 3841 | |
| 3842 | ** New input reading functions |
| 3843 | |
| 3844 | *** New function `read-char-choice' reads a restricted set of |
| 3845 | characters, discarding any inputs not inside the set. |
| 3846 | |
| 3847 | *** The command `read-color' now requires a match for a color name |
| 3848 | or RGB triplet, instead of signaling an error if the user provides |
| 3849 | invalid input. |
| 3850 | |
| 3851 | **** `facemenu-read-color' is now an alias for `read-color'. |
| 3852 | |
| 3853 | ** `image-library-alist' is renamed to `dynamic-library-alist'. |
| 3854 | The variable is now used to load all kind of supported dynamic libraries, |
| 3855 | not just image libraries. The previous name is still available as an |
| 3856 | obsolete alias. |
| 3857 | |
| 3858 | ** Syntax parsing changes |
| 3859 | |
| 3860 | *** New variable `syntax-propertize-function'. |
| 3861 | This replaces `font-lock-syntactic-keywords' which is now obsolete. |
| 3862 | This allows syntax-table properties to be set independently from font-lock: |
| 3863 | just call syntax-propertize to make sure the text is propertized. |
| 3864 | Together with this new variable come a new hook |
| 3865 | syntax-propertize-extend-region-functions, as well as two helper functions: |
| 3866 | syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords |
| 3867 | as-is; and syntax-propertize-rules which provides a new way to specify |
| 3868 | syntactic rules. |
| 3869 | |
| 3870 | *** Syntax tables support a new "comment style c" additionally to style b. |
| 3871 | |
| 3872 | ** New hook `post-self-insert-hook', run after `self-insert-command'. |
| 3873 | |
| 3874 | ** frame-local variables cannot be let-bound any more. |
| 3875 | |
| 3876 | ** Major and minor mode changes |
| 3877 | |
| 3878 | *** `set-auto-mode' now respects mode: local variables at the end of files, |
| 3879 | as well as those in the -*- line. |
| 3880 | |
| 3881 | *** `prog-mode' is a new major mode from which programming modes |
| 3882 | should be derived. |
| 3883 | |
| 3884 | **** `prog-mode-hook' can be used to enable features for programming |
| 3885 | modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable |
| 3886 | on-the-fly spell checking for comments and strings. |
| 3887 | |
| 3888 | *** New hook `change-major-mode-after-body-hook', run by |
| 3889 | `run-mode-hooks' just before any other mode hooks. |
| 3890 | |
| 3891 | *** Enabled globalized minor modes can be disabled in specific major modes. |
| 3892 | If the global mode is global-FOO-mode, then run (FOO-mode -1) in the |
| 3893 | major mode's hook, where FOO-mode toggles the mode on a per-buffer basis. |
| 3894 | |
| 3895 | *** `define-minor-mode' accepts new keywords :variable, :after-hook. |
| 3896 | |
| 3897 | ** File-handling changes |
| 3898 | |
| 3899 | *** `delete-file' and `delete-directory' now accept optional arg TRASH. |
| 3900 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are |
| 3901 | both non-nil. Interactively, TRASH defaults to t, unless a prefix |
| 3902 | argument is supplied (see Trash changes, above). |
| 3903 | |
| 3904 | *** New file predicates: `file-equal-p', `file-in-directory-p'. |
| 3905 | |
| 3906 | ** Tool-bars can display separators. |
| 3907 | Tool-bar separators are handled like menu separators in menu-bar maps, |
| 3908 | i.e. via menu entries of the form `(menu-item "--")'. |
| 3909 | |
| 3910 | ** Image API |
| 3911 | |
| 3912 | *** Animated images support (currently animated gifs only). |
| 3913 | |
| 3914 | **** `image-animated-p' returns non-nil if an image can be animated. |
| 3915 | |
| 3916 | **** `image-animate' animates a supplied image spec. |
| 3917 | |
| 3918 | **** `image-animate-timer' returns the timer object for an image that |
| 3919 | is being animated. |
| 3920 | |
| 3921 | *** `image-extension-data' has been renamed to `image-metadata'. |
| 3922 | The old name is an obsolete alias to the new one. |
| 3923 | |
| 3924 | *** Image mode can view any image type that ImageMagick supports. |
| 3925 | This requires Emacs to be built with ImageMagick support. |
| 3926 | |
| 3927 | **** New function `imagemagick-types', defined if ImageMagick support |
| 3928 | is enabled, returns a list of image file extensions that your |
| 3929 | ImageMagick installation supports. |
| 3930 | |
| 3931 | **** New function `imagemagick-register-types' enables ImageMagick |
| 3932 | image types in Image mode and in `create-image' and other helper |
| 3933 | functions. |
| 3934 | |
| 3935 | **** New option `imagemagick-types-inhibit' excludes certain |
| 3936 | ImageMagick image types from `imagemagick-register-types'. |
| 3937 | |
| 3938 | **** With ImageMagick support, there are extra Image mode commands to |
| 3939 | resize and rotate images: `image-transform-fit-to-height', |
| 3940 | `image-transform-fit-to-width', `image-transform-set-rotation', and |
| 3941 | `image-transform-set-scale'. |
| 3942 | |
| 3943 | ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and |
| 3944 | passes it to the mail user agent function. This argument specifies an |
| 3945 | action for returning to the caller after finishing with the mail. For |
| 3946 | example, this is used by Rmail to optionally delete a mail window. |
| 3947 | |
| 3948 | ** XML and HTML parsing |
| 3949 | If Emacs is compiled with libxml2 support, there are two new |
| 3950 | functions: `libxml-parse-html-region' (which parses "real world" HTML) |
| 3951 | and `libxml-parse-xml-region' (which parses XML). Both return an |
| 3952 | Emacs Lisp parse tree. |
| 3953 | |
| 3954 | ** Networking and encryption changes |
| 3955 | |
| 3956 | *** `open-network-stream' can now be used to open an encrypted stream. |
| 3957 | It now accepts an optional `:type' parameter for initiating a TLS |
| 3958 | connection, directly or via STARTTLS. To do STARTTLS, additional |
| 3959 | parameters (`:end-of-command', `:success', `:capabilities-command') |
| 3960 | must also be supplied. |
| 3961 | |
| 3962 | *** New library gnutls.el. |
| 3963 | The new function `gnutls-available-p' returns non-nil if Emacs is |
| 3964 | built with GnuTLS support. The main entry points are |
| 3965 | `open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use |
| 3966 | these functions through `open-network-stream', because that can |
| 3967 | upgrade connections through STARTTLS opportunistically or use plain |
| 3968 | SSL, depending on your needs. For debugging, set `gnutls-log-level' |
| 3969 | greater than 0. |
| 3970 | |
| 3971 | *** New primitive `secure-hash' that supports many secure hash algorithms: |
| 3972 | md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library |
| 3973 | sha1.el has been removed. The `sha1' feature is provided by default. |
| 3974 | |
| 3975 | ** Isearch |
| 3976 | |
| 3977 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. |
| 3978 | |
| 3979 | ** Progress reporters can now "spin". |
| 3980 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can |
| 3981 | now be nil, or omitted. This makes a "non-numeric" reporter. Each |
| 3982 | time you call `progress-reporter-update' on that progress reporter, |
| 3983 | with a nil or omitted VALUE argument, the reporter message is |
| 3984 | displayed with a "spinning bar". |
| 3985 | |
| 3986 | ** New variable `revert-buffer-in-progress-p' is true while a buffer is |
| 3987 | being reverted, even if the buffer has a local `revert-buffer-function'. |
| 3988 | |
| 3989 | ** New variables `delayed-warnings-list' and `delayed-warnings-hook'. |
| 3990 | If delayed-warnings-list is non-nil, the command loop calls |
| 3991 | `delayed-warnings-hook' after `post-command-hook'. At present, this |
| 3992 | is only used by Emacs on some platforms to display warnings during |
| 3993 | startup, which might otherwise not be noticed. This uses the |
| 3994 | functions `display-delayed-warnings' and `collapse-delayed-warnings'. |
| 3995 | |
| 3996 | ** rx.el has a new `group-n' construct for explicitly numbered groups. |
| 3997 | |
| 3998 | ** New function `make-composed-keymap' that constructs a new keymap |
| 3999 | from multiple input maps. You can use this to make a keymap that |
| 4000 | inherits from multiple maps, eg: |
| 4001 | (set-keymap-parent newmap (make-composed-keymap othermap parent)) |
| 4002 | |
| 4003 | ** New function `string-prefix-p'. |
| 4004 | (This was actually added in Emacs 23.2 but was not advertised at the time.) |
| 4005 | |
| 4006 | ** New reader macro ## that stands for the empty symbol. |
| 4007 | This means that the empty symbol can now be read back. Also, #: by itself |
| 4008 | (when not immediately followed by a possible symbol character) stands for |
| 4009 | an empty uninterned symbol. |
| 4010 | |
| 4011 | ** New math functions `isnan', `copysign', `frexp', `ldexp'. |
| 4012 | |
| 4013 | ** The following functions and variables are obsolete: |
| 4014 | |
| 4015 | *** `tooltip-use-echo-area' is obsolete. |
| 4016 | Rather than setting this to t, disable Tooltip mode instead. |
| 4017 | |
| 4018 | *** buffer-substring-filters is obsolete. |
| 4019 | Use `filter-buffer-substring-functions' instead. |
| 4020 | |
| 4021 | *** `byte-compile-disable-print-circle' is obsolete. |
| 4022 | |
| 4023 | *** `deferred-action-list' and `deferred-action-function' are obsolete. |
| 4024 | Use `post-command-hook' instead. |
| 4025 | |
| 4026 | *** `font-lock-maximum-size' is obsolete. |
| 4027 | |
| 4028 | \f |
| 4029 | * Changes in Emacs 24.1 on Non-Free Operating Systems |
| 4030 | |
| 4031 | ** On MS Windows, Emacs warns when using the obsolete init file _emacs, |
| 4032 | and also when HOME is set to C:\ by default. |
| 4033 | |
| 4034 | ** New configure.bat options |
| 4035 | |
| 4036 | *** --enable-checking builds Emacs with extra runtime checks. |
| 4037 | |
| 4038 | *** --distfiles specifies files to be included in binary distribution. |
| 4039 | |
| 4040 | *** --without-gnutls disables automatic GnuTLS detection. |
| 4041 | |
| 4042 | *** --lib for general library linkage, works with the USER_LIBS build variable. |
| 4043 | |
| 4044 | ** New make target `dist' to create binary distribution for MS Windows. |
| 4045 | |
| 4046 | ** The Lisp function `w32-default-color-map' is now obsolete. |
| 4047 | (It is only used internally in the Emacs C code.) |
| 4048 | |
| 4049 | ** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but |
| 4050 | reappear on mouse-over. (Requires OS X 10.6 or later.) |
| 4051 | |
| 4052 | ** On Mac OS X, dragging a file into Emacs visits the file, like on |
| 4053 | other platforms, rather than inserting its contents into the buffer. |
| 4054 | |
| 4055 | \f |
| 4056 | ---------------------------------------------------------------------- |
| 4057 | This file is part of GNU Emacs. |
| 4058 | |
| 4059 | GNU Emacs is free software: you can redistribute it and/or modify |
| 4060 | it under the terms of the GNU General Public License as published by |
| 4061 | the Free Software Foundation, either version 3 of the License, or |
| 4062 | (at your option) any later version. |
| 4063 | |
| 4064 | GNU Emacs is distributed in the hope that it will be useful, |
| 4065 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4066 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 4067 | GNU General Public License for more details. |
| 4068 | |
| 4069 | You should have received a copy of the GNU General Public License |
| 4070 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 4071 | |
| 4072 | \f |
| 4073 | Local variables: |
| 4074 | coding: utf-8 |
| 4075 | mode: outline |
| 4076 | paragraph-separate: "[ \f]*$" |
| 4077 | end: |