NEWS 371 KB
 Gerd Moellmann committed Mar 15, 2001 1 GNU Emacs NEWS -- history of user-visible changes. 2001-03-15  Dave Love committed Jan 16, 2001 2 Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.  Dave Love committed Oct 03, 1999 3 4 5 See the end for copying conditions. Please send Emacs bug reports to bug-gnu-emacs@gnu.org.  Gerd Moellmann committed Aug 17, 2000 6 For older news, see the file ONEWS  Dave Love committed Oct 03, 1999 7   Gerd Moellmann committed Oct 05, 2001 8 9 10  * Changes in Emacs 21.2  Gerd Moellmann committed Oct 11, 2001 11 12 13 ** Byte compiler warning and error messages have been brought more in line with the output of other GNU tools.  Stefan Monnier committed Oct 11, 2001 14 15 16 17 ** Lisp-mode now uses font-lock-docstring-face for the docstrings. ** perl-mode has a new variable perl-indent-continued-arguments'.  Stefan Monnier committed Oct 12, 2001 18 19 20 21 ** special-display-buffer-names' and special-display-regexps' now understand two new boolean pseudo-frame-parameters same-frame' and same-window'.  Gerd Moellmann committed Oct 05, 2001 22 23 24 25 26 27 28 29 30 31 32 33 34 ** When pure storage overflows while dumping, Emacs now prints how much pure storage it will approximately need. ** M-x setenv now expands environment variables of the form $foo' and ${foo}' in the specified new value of the environment variable. To include a $' in the value, use $\$'. ** New user option inhibit-startup-buffer-menu'. When loading many files, for instance with emacs *', Emacs normally displays a buffer menu. This option turns the buffer menu off. ** Rmail now displays 5-digit message ids in its summary buffer.  Gerd Moellmann committed Oct 05, 2001 35 36 37 38 ** When using M-x revert-buffer in a compilation buffer to rerun a compilation, it is now made sure that the compilation buffer is reused in case it has been renamed.  Gerd Moellmann committed Oct 10, 2001 39 40 41 42 43 44 45 ** New modes and packages *** The ruler-mode.el library provides a minor mode for displaying an "active" ruler in the header line. You can use the mouse to visually change the fill-column', window-margins' and tab-stop-list' settings.  Gerd Moellmann committed Oct 11, 2001 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 *** master-mode.el implements a minor mode for scrolling a slave buffer without leaving your current buffer, the master buffer. It can be used by sql.el, for example: the SQL buffer is the master and its SQLi buffer is the slave. This allows you to scroll the SQLi buffer containing the output from the SQL buffer containing the commands. This is how to use sql.el and master.el together: the variable sql-buffer contains the slave buffer. It is a local variable in the SQL buffer. (add-hook 'sql-mode-hook (function (lambda () (master-mode t) (master-set-slave sql-buffer)))) (add-hook 'sql-set-sqli-hook (function (lambda () (master-set-slave sql-buffer))))  Gerd Moellmann committed Oct 05, 2001 66 67 68  * Lisp Changes in Emacs 21.2  Gerd Moellmann committed Oct 11, 2001 69 70 71 72 ** Functions user-uid' and user-real-uid' now return floats if the user UID doesn't fit in a Lisp integer. Function user-full-name' accepts a float as UID parameter.  Stefan Monnier committed Oct 11, 2001 73 74 75 76 77 78 ** define-key-after' now accepts keys longer than 1. ** define-derived-mode' now accept nil as the parent. ** The local variable no-byte-compile' in elisp files is now obeyed.  Stefan Monnier committed Oct 12, 2001 79 80 81 82 83 84 85 ** New functions keymap-prompt' and current-active-maps'. ** New function describe-buffer-bindings'. ** New vars exec-suffixes' and load-suffixes' used when searching for an executable resp. an elisp file.  Gerd Moellmann committed Oct 05, 2001 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 ** Variable aliases have been implemented - Macro: defvaralias ALIAS-VAR BASE-VAR This defines the symbol ALIAS-VAR as a variable alias for symbol BASE-VAR. This means that retrieving the value of ALIAS-VAR returns the value of BASE-VAR, and changing the value of ALIAS-VAR changes the value of BASE-VAR. - Function: indirect-variable VARIABLE This function returns the variable at the end of the chain of aliases of VARIABLE. If VARIABLE is not a symbol, or if VARIABLE is not defined as an alias, the function returns VARIABLE. It might be noteworthy that variables aliases work for all kinds of variables, including buffer-local and frame-local variables. ** Functions from post-gc-hook' are run at the end of garbage collection. The hook is run with GC inhibited, so use it with care.  Gerd Moellmann committed Oct 05, 2001 107 108 109 ** If the second argument to copy-file' is the name of a directory, the file is copied to that directory instead of signaling an error.  Gerd Moellmann committed Oct 07, 2001 110 111 112 ** The variables most-positive-fixnum and most-negative-fixnum have been moved from the CL package to the core.  Stefan Monnier committed Oct 11, 2001 113 114 115 116 117 ** New packages: *** The new package syntax.el provides an efficient way to find the current syntactic context (as returned by parse-partial-sexp).  Dave Love committed Jan 25, 2001 118   Dave Love committed Oct 12, 1999 119 120 * Installation Changes in Emacs 21.1  Dave Love committed Feb 11, 2001 121 122 123 124 See the INSTALL file for information on installing extra libraries and fonts to take advantage of the new graphical features and extra charsets in this release.  Gerd Moellmann committed Aug 03, 2000 125 126 ** Support for GNU/Linux on IA64 machines has been added.  Dave Love committed Aug 21, 2000 127 128 ** Support for LynxOS has been added.  Gerd Moellmann committed Mar 16, 2000 129 ** There are new configure options associated with the support for  Richard M. Stallman committed Jun 27, 2000 130 131 images and toolkit scrollbars. Use the --help option in configure' to list them.  Gerd Moellmann committed Jun 16, 2000 132   Dave Love committed Jul 26, 2000 133 ** You can build a 64-bit Emacs for SPARC/Solaris systems which  Dave Love committed Oct 05, 2000 134 support 64-bit executables and also on Irix 6.5. This increases the  Dave Love committed Nov 14, 2000 135 136 137 maximum buffer size. See etc/MACHINES for instructions. Changes to build on other 64-bit systems should be straightforward modulo any necessary changes to unexec.  Gerd Moellmann committed Aug 03, 2000 138   Eli Zaretskii committed Aug 22, 2001 139 140 141 142 143 144 145 146 ** There is a new configure option --disable-largefile' to omit Unix-98-style support for large files if that is available. ** There is a new configure option --without-xim' that instructs Emacs to not use X Input Methods (XIM), if these are available. ** movemail' defaults to supporting POP. You can turn this off using the --without-pop configure option, should that be necessary.  Dave Love committed Oct 12, 2000 147   Andrew Choi committed Oct 25, 2000 148 ** This version can be built for the Macintosh, but does not implement  Dave Love committed Oct 27, 2000 149 all of the new display features described below. The port currently  Eli Zaretskii committed Dec 05, 2000 150 151 152 lacks unexec, asynchronous processes, and networking support. See the "Emacs and the Mac OS" appendix in the Emacs manual, for the description of aspects specific to the Mac.  Dave Love committed Oct 12, 2000 153   Eli Zaretskii committed Aug 22, 2001 154 155 156 ** Note that the MS-Windows port does not yet implement various of the new display features described below.  Dave Love committed Jan 25, 2001 157   Gerd Moellmann committed Mar 16, 2000 158 159 * Changes in Emacs 21.1  Gerd Moellmann committed Mar 15, 2001 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 ** Emacs has a new redisplay engine. The new redisplay handles characters of variable width and height. Italic text can be used without redisplay problems. Fonts containing oversized characters, i.e. characters larger than the logical height of a font can be used. Images of various formats can be displayed in the text. ** Emacs has a new face implementation. The new faces no longer fundamentally use X font names to specify the font. Instead, each face has several independent attributes--family, height, width, weight and slant--that it may or may not specify. These attributes can be merged from various faces, and then together specify a font. Faces are supported on terminals that can display color or fonts. These terminal capabilities are auto-detected. Details can be found under Lisp changes, below. ** Emacs can display faces on TTY frames. Emacs automatically detects terminals that are able to display colors. Faces with a weight greater than normal are displayed extra-bright, if the terminal supports it. Faces with a weight less than normal and italic faces are displayed dimmed, if the terminal supports it. Underlined faces are displayed underlined if possible. Other face attributes such as overline', strike-through', and box' are ignored on terminals. The command-line options -fg COLOR', -bg COLOR', and -rv' are now supported on character terminals.  Eli Zaretskii committed Aug 22, 2001 193 194 195 196 197 Emacs automatically remaps all X-style color specifications to one of the colors supported by the terminal. This means you could have the same color customizations that work both on a windowed display and on a TTY or when Emacs is invoked with the -nw option.  Gerd Moellmann committed Mar 15, 2001 198 199 ** New default font is Courier 12pt under X.  Eli Zaretskii committed Aug 22, 2001 200 201 202 203 204 ** Sound support Emacs supports playing sound files on GNU/Linux and FreeBSD (Voxware driver and native BSD driver, a.k.a. Luigi's driver). Currently supported file formats are RIFF-WAVE (*.wav) and Sun Audio (*.au).  Eli Zaretskii committed Sep 01, 2001 205 206 You must configure Emacs with the option --with-sound=yes' to enable sound support.  Eli Zaretskii committed Aug 22, 2001 207   Gerd Moellmann committed Mar 15, 2001 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 ** Emacs now resizes mini-windows if appropriate. If a message is longer than one line, or minibuffer contents are longer than one line, Emacs can resize the minibuffer window unless it is on a frame of its own. You can control resizing and the maximum minibuffer window size by setting the following variables: - User option: max-mini-window-height Maximum height for resizing mini-windows. If a float, it specifies a fraction of the mini-window frame's height. If an integer, it specifies a number of lines. Default is 0.25. - User option: resize-mini-windows How to resize mini-windows. If nil, don't resize. If t, always resize to fit the size of the text. If grow-only', let mini-windows grow only, until they become empty, at which point they are shrunk again. Default is grow-only'. ** LessTif support. Emacs now runs with the LessTif toolkit (see  Gerd Moellmann committed Apr 03, 2001 235 ). You will need version 0.92.26, or later.  Gerd Moellmann committed Mar 15, 2001 236 237 238 239 240 241 242  ** LessTif/Motif file selection dialog. When Emacs is configured to use LessTif or Motif, reading a file name from a menu will pop up a file selection dialog if use-dialog-box' is non-nil.  Eli Zaretskii committed Sep 27, 2001 243 244 245 246 247 248 ** File selection dialog on MS-Windows is supported. When a file is visited by clicking File->Open, the MS-Windows version now pops up a standard file selection dialog where you can select a file to visit. File->Save As also pops up that dialog.  Gerd Moellmann committed Mar 15, 2001 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 ** Toolkit scroll bars. Emacs now uses toolkit scroll bars if available. When configured for LessTif/Motif, it will use that toolkit's scroll bar. Otherwise, when configured for Lucid and Athena widgets, it will use the Xaw3d scroll bar if Xaw3d is available. You can turn off the use of toolkit scroll bars by specifying --with-toolkit-scroll-bars=no' when configuring Emacs. When you encounter problems with the Xaw3d scroll bar, watch out how Xaw3d is compiled on your system. If the Makefile generated from Xaw3d's Imakefile contains a -DNARROWPROTO' compiler option, and your Emacs system configuration file s/your-system.h' does not contain a define for NARROWPROTO, you might consider adding it. Take s/freebsd.h' as an example. Alternatively, if you don't have access to the Xaw3d source code, take a look at your system's imake configuration file, for example in the directory /usr/X11R6/lib/X11/config' (paths are different on different systems). You will find files *.cf' there. If your system's cf-file contains a line like #define NeedWidePrototypes NO', add a #define NARROWPROTO' to your Emacs system configuration file. The reason for this is that one Xaw3d function uses double' or float' function parameters depending on the setting of NARROWPROTO. This is not a problem when Imakefiles are used because each system's  Gerd Moellmann committed Apr 03, 2001 275 imake configuration file contains the necessary information. Since  Gerd Moellmann committed Mar 15, 2001 276 277 278 279 280 281 282 283 284 285 286 287 288 Emacs doesn't use imake, this has do be done manually. ** Tool bar support. Emacs supports a tool bar at the top of a frame under X. For details of how to define a tool bar, see the page describing Lisp-level changes. Tool-bar global minor mode controls whether or not it is displayed and is on by default. The appearance of the bar is improved if Emacs has been built with XPM image support. Otherwise monochrome icons will be used. To make the tool bar more useful, we need contributions of extra icons for specific modes (with copyright assignments). Contributions would  Dave Love committed Mar 20, 2001 289 also be useful to touch up some of the PBM icons manually.  Gerd Moellmann committed Mar 15, 2001 290 291 292 293 294 295 296 297 298 299 300 301  ** Tooltips. Tooltips are small X windows displaying a help string at the current mouse position. The Lisp package tooltip' implements them. You can turn them off via the user option tooltip-mode'. Tooltips also provides support for GUD debugging. If activated, variable values can be displayed in tooltips by pointing at them with the mouse in source buffers. You can customize various aspects of the tooltip display in the group tooltip'.  Eli Zaretskii committed Aug 22, 2001 302 303 304 305 306 307 308 309 310 311 312 313 ** Automatic Hscrolling Horizontal scrolling now happens automatically if automatic-hscrolling' is set (the default). This setting can be customized. If a window is scrolled horizontally with set-window-hscroll, or scroll-left/scroll-right (C-x <, C-x >), this serves as a lower bound for automatic horizontal scrolling. Automatic scrolling will scroll the text more to the left if necessary, but won't scroll the text more to the right than the column set with set-window-hscroll etc.  Gerd Moellmann committed Mar 15, 2001 314 315 316 ** When using a windowing terminal, each Emacs window now has a cursor of its own. By default, when a window is selected, the cursor is solid; otherwise, it is hollow. The user-option  Eli Zaretskii committed Apr 05, 2001 317 cursor-in-non-selected-windows' controls how to display the  Gerd Moellmann committed Mar 15, 2001 318 cursor in non-selected windows. If nil, no cursor is shown, if  Dave Love committed Mar 20, 2001 319 non-nil a hollow box cursor is shown.  Gerd Moellmann committed Mar 15, 2001 320 321 322 323 324 325 326 327 328 329 330 331 332 333  ** Fringes to the left and right of windows are used to display truncation marks, continuation marks, overlay arrows and alike. The foreground, background, and stipple of these areas can be changed by customizing face fringe'. ** The mode line under X is now drawn with shadows by default. You can change its appearance by modifying the face mode-line'. In particular, setting the :box' attribute to nil turns off the 3D appearance of the mode line. (The 3D appearance makes the mode line occupy more space, and thus might cause the first or the last line of the window to be partially obscured.) The variable mode-line-inverse-video', which was used in older  Miles Bader committed Aug 15, 2001 334 335 336 versions of emacs to make the mode-line stand out, is now deprecated. However, setting it to nil will cause the mode-line' face to be ignored, and mode-lines to be drawn using the default text face.  Gerd Moellmann committed Mar 15, 2001 337 338 339  ** Mouse-sensitive mode line.  Eli Zaretskii committed Mar 16, 2001 340 341 342 343 344 345 Different parts of the mode line have been made mouse-sensitive on all systems which support the mouse. Moving the mouse to a mouse-sensitive part in the mode line changes the appearance of the mouse pointer to an arrow, and help about available mouse actions is displayed either in the echo area, or in the tooltip window if you have enabled one.  Gerd Moellmann committed Mar 15, 2001 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383  Currently, the following actions have been defined: - Mouse-1 on the buffer name in the mode line switches between two buffers. - Mouse-2 on the buffer-name switches to the next buffer, and M-mouse-2 switches to the previous buffer in the buffer list. - Mouse-3 on the buffer-name displays a buffer menu. - Mouse-2 on the read-only or modified status in the mode line (%' or *') toggles the status. - Mouse-3 on the mode name displays a minor-mode menu. ** Hourglass pointer Emacs can optionally display an hourglass pointer under X. You can turn the display on or off by customizing group cursor'. ** Blinking cursor M-x blink-cursor-mode toggles a blinking cursor under X and on terminals having terminal capabilities vi', vs', and ve'. Blinking and related parameters like frequency and delay can be customized in the group cursor'. ** New font-lock support mode jit-lock-mode'. This support mode is roughly equivalent to lazy-lock' but is generally faster. It supports stealth and deferred fontification. See the documentation of the function jit-lock-mode' for more details. Font-lock uses jit-lock-mode as default support mode, so you don't have to do anything to activate it.  Eli Zaretskii committed Aug 22, 2001 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 ** The default binding of the Delete key has changed. The new user-option normal-erase-is-backspace' can be set to determine the effect of the Delete and Backspace function keys. On window systems, the default value of this option is chosen according to the keyboard used. If the keyboard has both a Backspace key and a Delete key, and both are mapped to their usual meanings, the option's default value is set to t, so that Backspace can be used to delete backward, and Delete can be used to delete forward. On keyboards which either have only one key (usually labeled DEL), or two keys DEL and BS which produce the same effect, the option's value is set to nil, and these keys delete backward. If not running under a window system, setting this option accomplishes a similar effect by mapping C-h, which is usually generated by the Backspace key, to DEL, and by mapping DEL to C-d via keyboard-translate'. The former functionality of C-h is available on the F1 key. You should probably not use this setting on a text-only terminal if you don't have both Backspace, Delete and F1 keys. Programmatically, you can call function normal-erase-is-backspace-mode to toggle the behavior of the Delete and Backspace keys.  Gerd Moellmann committed Mar 15, 2001 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 ** The default for user-option next-line-add-newlines' has been changed to nil, i.e. C-n will no longer add newlines at the end of a buffer by default. ** The and keys now move to the beginning or end of the current line, respectively. C- and C- move to the beginning and end of the buffer. ** Emacs now checks for recursive loads of Lisp files. If the recursion depth exceeds recursive-load-depth-limit', an error is signaled. ** When an error is signaled during the loading of the user's init file, Emacs now pops up the *Messages* buffer. ** Emacs now refuses to load compiled Lisp files which weren't compiled with Emacs. Set load-dangerous-libraries' to t to change this behavior.  Eli Zaretskii committed Aug 22, 2001 427 The reason for this change is an incompatible change in XEmacs's byte  Gerd Moellmann committed Mar 15, 2001 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 compiler. Files compiled with XEmacs can contain byte codes that let Emacs dump core. ** Toggle buttons and radio buttons in menus. When compiled with LessTif (or Motif) support, Emacs uses toolkit widgets for radio and toggle buttons in menus. When configured for Lucid, Emacs draws radio buttons and toggle buttons similar to Motif. ** The menu bar configuration has changed. The new configuration is more CUA-compliant. The most significant change is that Options is now a separate menu-bar item, with Mule and Customize as its submenus. ** Item Save Options on the Options menu allows saving options set using that menu. ** Highlighting of trailing whitespace. When show-trailing-whitespace' is non-nil, Emacs displays trailing whitespace in the face trailing-whitespace'. Trailing whitespace is defined as spaces or tabs at the end of a line. To avoid busy highlighting when entering new text, trailing whitespace is not displayed if point is at the end of the line containing the whitespace. ** C-x 5 1 runs the new command delete-other-frames which deletes all frames except the selected one. ** The new user-option confirm-kill-emacs' can be customized to let Emacs ask for confirmation before exiting. ** The header line in an Info buffer is now displayed as an emacs header-line (which is like a mode-line, but at the top of the window), so that it remains visible even when the buffer has been scrolled. This behavior may be disabled by customizing the option Info-use-header-line'. ** Polish, Czech, German, and French translations of Emacs' reference card have been added. They are named pl-refcard.tex', cs-refcard.tex', de-refcard.tex' and fr-refcard.tex'. Postscript files are included. ** An Emacs Survival Guide', etc/survival.tex, is available. ** A reference card for Dired has been added. Its name is dired-ref.tex'. A French translation is available in fr-drdref.tex'. ** C-down-mouse-3 is bound differently. Now if the menu bar is not displayed it pops up a menu containing the items which would be on the menu bar. If the menu bar is displayed, it pops up the major mode menu or the Edit menu if there is no major mode menu.  Eli Zaretskii committed Aug 22, 2001 480 ** Variable load-path' is no longer customizable through Customize.  Eli Zaretskii committed Jun 16, 2001 481   Sam Steingold committed Jun 18, 2001 482 You can no longer use M-x customize-variable' to customize load-path'  Eli Zaretskii committed Jun 16, 2001 483 484 485 because it now contains a version-dependent component. You can still use add-to-list' and setq' to customize this variable in your ~/.emacs' init file or to modify it from any Lisp program in general.  Gerd Moellmann committed Mar 15, 2001 486 487 488 489 490 491 492 493 494 495 496 497 498 499  ** C-u C-x = provides detailed information about the character at point in a pop-up window. ** Emacs can now support 'wheeled' mice (such as the MS IntelliMouse) under XFree86. To enable this, use the mouse-wheel-mode' command, or customize the variable mouse-wheel-mode'. The variables mouse-wheel-follow-mouse' and mouse-wheel-scroll-amount' determine where and by how much buffers are scrolled. ** Emacs' auto-save list files are now by default stored in a sub-directory .emacs.d/auto-save-list/' of the user's home directory. (On MS-DOS, this subdirectory's name is _emacs.d/auto-save.list/'.)  Eli Zaretskii committed Apr 17, 2001 500 You can customize auto-save-list-file-prefix' to change this location.  Gerd Moellmann committed Mar 15, 2001 501 502 503  ** The function getenv' is now callable interactively.  Gerd Moellmann committed Dec 06, 2000 504 505 506 ** The new user-option even-window-heights' can be set to nil to prevent display-buffer' from evening out window heights.  Sam Steingold committed Nov 22, 2000 507 ** The new command M-x delete-trailing-whitespace RET will delete the  Gerd Moellmann committed Nov 29, 2000 508 trailing whitespace within the current restriction. You can also add  Sam Steingold committed Nov 22, 2000 509 510 this function to write-file-hooks' or local-write-file-hooks'.  Gerd Moellmann committed Nov 16, 2000 511 ** When visiting a file with M-x find-file-literally, no newlines will  Dave Love committed Feb 06, 2001 512 513 be added to the end of the buffer even if require-final-newline' is non-nil.  Gerd Moellmann committed Nov 16, 2000 514   Gerd Moellmann committed Sep 19, 2000 515 516 517 518 ** The new user-option find-file-suppress-same-file-warnings' can be set to suppress warnings X and Y are the same file'' when visiting a file that is already visited under a different name.  Gerd Moellmann committed Sep 21, 2000 519 520 521 ** The new user-option electric-help-shrink-window' can be set to nil to prevent adjusting the help window size to the buffer size.  Gerd Moellmann committed Sep 19, 2000 522 ** New command M-x describe-character-set reads a character set name  Eli Zaretskii committed Oct 08, 2000 523 and displays information about that.  Kenichi Handa committed Aug 29, 2000 524   Gerd Moellmann committed Aug 08, 2000 525 526 527 528 529 530 531 532 533 534 ** The new variable auto-mode-interpreter-regexp' contains a regular expression matching interpreters, for file mode determination. This regular expression is matched against the first line of a file to determine the file's mode in set-auto-mode' when Emacs can't deduce a mode from the file's name. If it matches, the file is assumed to be interpreted by the interpreter matched by the second group of the regular expression. The mode is then determined as the mode associated with that interpreter in interpreter-mode-alist'.  Dave Love committed Jun 09, 2000 535 ** New function executable-make-buffer-file-executable-if-script-p is  Dave Love committed Aug 21, 2000 536 suitable as an after-save-hook as an alternative to executable-chmod'.  Dave Love committed Jun 09, 2000 537   Dave Love committed Jun 08, 2000 538 539 540 541 542 543 544 545 ** The most preferred coding-system is now used to save a buffer if buffer-file-coding-system is undecided' and it is safe for the buffer contents. (The most preferred is set by set-language-environment or by M-x prefer-coding-system.) Thus if you visit an ASCII file and insert a non-ASCII character from your current language environment, the file will be saved silently with the appropriate coding. Previously you would be prompted for a safe coding system.  Eli Zaretskii committed Aug 22, 2001 546 547 548 549 550 551 ** The many obsolete language setup-...-environment' commands have been removed -- use set-language-environment'. ** The new Custom option keyboard-coding-system' specifies a coding system for keyboard input.  Gerd Moellmann committed Jul 18, 2000 552 553 554 555 556 ** New variable inhibit-iso-escape-detection' determines if Emacs' coding system detection algorithm should pay attention to ISO2022's escape sequences. If this variable is non-nil, the algorithm ignores such escape sequences. The default value is nil, and it is recommended not to change it except for the special case that you  Kenichi Handa committed Jul 21, 2000 557 always want to read any escape code verbatim. If you just want to  Gerd Moellmann committed Jul 18, 2000 558 read a specific file without decoding escape codes, use C-x RET c  Kenichi Handa committed Jul 21, 2000 559 560 (universal-coding-system-argument'). For instance, C-x RET c latin-1 RET C-x C-f filename RET.  Kenichi Handa committed Jul 14, 2000 561   Dave Love committed Jun 08, 2000 562 563 564 565 566 567 568 569 570 ** Variable default-korean-keyboard' is initialized properly from the environment variable HANGUL_KEYBOARD_TYPE'. ** New command M-x list-charset-chars reads a character set name and displays all characters in that character set. ** M-x set-terminal-coding-system (C-x RET t) now allows CCL-based coding systems such as cpXXX and cyrillic-koi8.  Eli Zaretskii committed Aug 22, 2001 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 ** Emacs now attempts to determine the initial language environment and preferred and locale coding systems systematically from the LC_ALL, LC_CTYPE, and LANG environment variables during startup. ** New language environments Polish', Latin-8' and Latin-9'. Latin-8 and Latin-9 correspond respectively to the ISO character sets 8859-14 (Celtic) and 8859-15 (updated Latin-1, with the Euro sign). GNU Intlfonts doesn't support these yet but recent X releases have 8859-15. See etc/INSTALL for information on obtaining extra fonts. There are new Leim input methods for Latin-8 and Latin-9 prefix (only) and Polish slash'. ** New language environments Dutch' and Spanish'. These new environments mainly select appropriate translations of the tutorial. ** In Ethiopic language environment, special key bindings for function keys are changed as follows. This is to conform to "Emacs Lisp Coding Convention". new command old-binding --- ------- ----------- f3 ethio-fidel-to-sera-buffer f5 S-f3 ethio-fidel-to-sera-region f5 C-f3 ethio-fidel-to-sera-mail-or-marker f5 f4 ethio-sera-to-fidel-buffer unchanged S-f4 ethio-sera-to-fidel-region unchanged C-f4 ethio-sera-to-fidel-mail-or-marker unchanged S-f5 ethio-toggle-punctuation f3 S-f6 ethio-modify-vowel f6 S-f7 ethio-replace-space f7 S-f8 ethio-input-special-character f8 S-f9 ethio-replace-space unchanged C-f9 ethio-toggle-space f2 ** The rule of input method "slovak" is slightly changed. Now the rules for translating "q" and "Q" to "" (backquote) are deleted, thus typing them inserts "q" and "Q" respectively. Rules for translating "=q", "+q", "=Q", and "+Q" to "" are also deleted. Now, to input "", you must type "=q". ** When your terminal can't display characters from some of the ISO 8859 character sets but can display Latin-1, you can display more-or-less mnemonic sequences of ASCII/Latin-1 characters instead of empty boxes (under a window system) or question marks (not under a window system). Customize the option latin1-display' to turn this on. ** M-; now calls comment-dwim which tries to do something clever based on the context. M-x kill-comment is now an alias to comment-kill, defined in newcomment.el. You can choose different styles of region commenting with the variable comment-style'.  Stefan Monnier committed May 25, 2000 625   Dave Love committed May 03, 2000 626 627 628 629 630 ** New user options display-time-mail-face' and display-time-use-mail-icon' control the appearance of mode-line mail indicator used by the display-time package. On a suitable display the indicator can be an icon and is mouse-sensitive.  Gerd Moellmann committed Apr 24, 2000 631 632 633 634 635 636 637 638 ** On window-systems, additional space can be put between text lines on the display using several methods - By setting frame parameter line-spacing' to PIXELS. PIXELS must be a positive integer, and specifies that PIXELS number of pixels should be put below text lines on the affected frame or frames. - By setting X resource lineSpacing', class LineSpacing'. This is  Kenichi Handa committed Nov 24, 2000 639 equivalent to specifying the frame parameter.  Gerd Moellmann committed Apr 24, 2000 640   Gerd Moellmann committed May 11, 2000 641 - By specifying --line-spacing=N' or -lsp N' on the command line.  Gerd Moellmann committed Apr 24, 2000 642 643 644 645  - By setting buffer-local variable line-spacing'. The meaning is the same, but applies to the a particular buffer only.  Dave Love committed Jun 19, 2000 646 ** The new command clone-indirect-buffer' can be used to create  Gerd Moellmann committed Apr 19, 2000 647 an indirect buffer that is a twin copy of the current buffer. The  Dave Love committed Jun 19, 2000 648 command clone-indirect-buffer-other-window', bound to C-x 4 c,  Gerd Moellmann committed Apr 19, 2000 649 does the same but displays the indirect buffer in another window.  Gerd Moellmann committed Apr 17, 2000 650   Dave Love committed Apr 09, 2000 651 ** New user options backup-directory-alist' and  Dave Love committed Apr 28, 2000 652 653 make-backup-file-name-function' control the placement of backups, typically in a single directory or in an invisible sub-directory.  Dave Love committed Apr 09, 2000 654   Dave Love committed Mar 29, 2000 655 656 657 ** New commands iso-iso2sgml and iso-sgml2iso convert between Latin-1 characters and the corresponding SGML (HTML) entities.  Gerd Moellmann committed Mar 15, 2000 658 ** New X resources recognized  Gerd Moellmann committed Mar 05, 2000 659   Gerd Moellmann committed Mar 14, 2000 660 661 662 663 664 665 *** The X resource synchronous', class Synchronous', specifies whether Emacs should run in synchronous mode. Synchronous mode is useful for debugging X problems. Example:  Gerd Moellmann committed Mar 15, 2000 666  emacs.synchronous: true  Gerd Moellmann committed Mar 14, 2000 667   Gerd Moellmann committed Mar 05, 2000 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 *** The X resource visualClass, class VisualClass', specifies the visual Emacs should use. The resource's value should be a string of the form CLASS-DEPTH', where CLASS is the name of the visual class, and DEPTH is the requested color depth as a decimal number. Valid visual class names are TrueColor PseudoColor DirectColor StaticColor GrayScale StaticGray Visual class names specified as X resource are case-insensitive, i.e. pseudocolor', Pseudocolor' and PseudoColor' all have the same meaning. The program xdpyinfo' can be used to list the visual classes supported on your display, and which depths they have. If visualClass' is not specified, Emacs uses the display's default visual. Example:  Gerd Moellmann committed Mar 15, 2000 692  emacs.visualClass: TrueColor-8  Gerd Moellmann committed Mar 05, 2000 693 694 695 696 697 698 699 700  *** The X resource privateColormap', class PrivateColormap', specifies that Emacs should use a private colormap if it is using the default visual, and that visual is of class PseudoColor. Recognized resource values are true' or on'. Example:  Gerd Moellmann committed Mar 15, 2000 701  emacs.privateColormap: true  Gerd Moellmann committed Mar 05, 2000 702   Dave Love committed Oct 03, 1999 703 704 705 706 707 708 709 710 711 712 713 714 ** Faces and frame parameters. There are four new faces scroll-bar', border', cursor' and mouse'. Setting the frame parameters scroll-bar-foreground' and scroll-bar-background' sets foreground and background color of face scroll-bar' and vice versa. Setting frame parameter border-color' sets the background color of face border' and vice versa. Likewise for frame parameters cursor-color' and face cursor', and frame parameter mouse-color' and face mouse'. Changing frame parameter font' sets font-related attributes of the default' face and vice versa. Setting frame parameters  Francesco Potortì committed Nov 01, 1999 715 foreground-color' or background-color' sets the colors of the  Dave Love committed Oct 03, 1999 716 717 default' face and vice versa.  Gerd Moellmann committed Oct 09, 1999 718 719 720 721 ** New face menu'. The face menu' can be used to change colors and font of Emacs' menus.  Dave Love committed Oct 03, 1999 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 ** New frame parameter screen-gamma' for gamma correction. The new frame parameter screen-gamma' specifies gamma-correction for colors. Its value may be nil, the default, in which case no gamma correction occurs, or a number > 0, usually a float, that specifies the screen gamma of a frame's display. PC monitors usually have a screen gamma of 2.2. smaller values result in darker colors. You might want to try a screen gamma of 1.5 for LCD color displays. The viewing gamma Emacs uses is 0.4545. (1/2.2). The X resource name of this parameter is screenGamma', class ScreenGamma'. ** Tabs and variable-width text. Tabs are now displayed with stretch properties; the width of a tab is defined as a multiple of the normal character width of a frame, and is independent of the fonts used in the text where the tab appears. Thus, tabs can be used to line up text in different fonts. ** Enhancements of the Lucid menu bar *** The Lucid menu bar now supports the resource "margin". emacs.pane.menubar.margin: 5  Richard M. Stallman committed Apr 21, 2000 749 750 The default margin is 4 which makes the menu bar appear like the LessTif/Motif one.  Dave Love committed Oct 03, 1999 751   Richard M. Stallman committed Apr 21, 2000 752 753 *** Arrows that indicate sub-menus are now drawn with shadows, as in LessTif and Motif.  Dave Love committed Oct 03, 1999 754 755 756 757 758 759 760 761  ** A block cursor can be drawn as wide as the glyph under it under X. As an example: if a block cursor is over a tab character, it will be drawn as wide as that tab on the display. To do this, set x-stretch-cursor' to a non-nil value. ** Empty display lines at the end of a buffer may be marked with a  Eli Zaretskii committed Aug 22, 2001 762 bitmap (this is similar to the tilde displayed by vi and Less).  Dave Love committed Oct 03, 1999 763 764 765 766 767 768 769 770  This behavior is activated by setting the buffer-local variable indicate-empty-lines' to a non-nil value. The default value of this variable is found in default-indicate-empty-lines'. ** There is a new "aggressive" scrolling method. When scrolling up because point is above the window start, if the  Kenichi Handa committed Nov 20, 2000 771 value of the buffer-local variable scroll-up-aggressively' is a  Dave Love committed Oct 03, 1999 772 number, Emacs chooses a new window start so that point ends up that  Gerd Moellmann committed Aug 23, 2000 773 fraction of the window's height from the top of the window.  Dave Love committed Oct 03, 1999 774 775  When scrolling down because point is below the window end, if the  Gerd Moellmann committed Jan 29, 2001 776 value of the buffer-local variable scroll-down-aggressively' is a  Dave Love committed Oct 03, 1999 777 number, Emacs chooses a new window start so that point ends up that  Gerd Moellmann committed Aug 23, 2000 778 fraction of the window's height from the bottom of the window.  Dave Love committed Oct 03, 1999 779   Eli Zaretskii committed Aug 22, 2001 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 ** You can now easily create new *Info* buffers using either M-x clone-buffer, C-u m RET or C-u g RET. M-x clone-buffer can also be used on *Help* and several other special buffers. ** The command Info-search' now uses a search history. ** Listing buffers with M-x list-buffers (C-x C-b) now shows abbreviated file names. Abbreviations can be customized by changing directory-abbrev-alist'. ** A new variable, backup-by-copying-when-privileged-mismatch, gives the highest file uid for which backup-by-copying-when-mismatch will be forced on. The assumption is that uids less than or equal to this value are special uids (root, bin, daemon, etc.--not real system users) and that files owned by these users should not change ownership, even if your system policy allows users other than root to edit them. The default is 200; set the variable to nil to disable the feature.  Dave Love committed Oct 03, 1999 800 801 802 803 804 805 ** The rectangle commands now avoid inserting undesirable spaces, notably at the end of lines. All these functions have been rewritten to avoid inserting unwanted spaces, and an optional prefix now allows them to behave the old way.  Gerd Moellmann committed Apr 24, 2001 806 ** The function replace-rectangle' is an alias for string-rectangle'.  Dave Love committed Mar 12, 2000 807   Gerd Moellmann committed Apr 24, 2001 808 809 ** The new command M-x string-insert-rectangle is like string-rectangle', but inserts text instead of replacing it.  Eli Zaretskii committed Jan 27, 2001 810   Dave Love committed Oct 03, 1999 811 812 813 814 ** The new command M-x query-replace-regexp-eval acts like query-replace-regexp, but takes a Lisp expression which is evaluated after each match to get the replacement text.  Gerd Moellmann committed Jun 28, 2000 815 816 ** M-x query-replace recognizes a new command e' (or E') that lets you edit the replacement string.  Gerd Moellmann committed May 03, 2000 817   Eli Zaretskii committed Aug 23, 2001 818 819 820 ** The new command mail-abbrev-complete-alias, bound to M-TAB' (if you load the library mailabbrev'), lets you complete mail aliases in the text, analogous to lisp-complete-symbol.  Gerd Moellmann committed May 03, 2000 821   Eli Zaretskii committed Aug 22, 2001 822 ** The variable echo-keystrokes' may now have a floating point value.  Dave Love committed Feb 11, 2001 823   Eli Zaretskii committed Aug 22, 2001 824 825 ** If your init file is compiled (.emacs.elc), user-init-file' is set to the source name (.emacs.el), if that exists, after loading it.  Thien-Thi Nguyen committed Sep 23, 2000 826   Eli Zaretskii committed Aug 22, 2001 827 828 829 830 ** The help string specified for a menu-item whose definition contains the property :help HELP' is now displayed under X, on MS-Windows, and MS-DOS, either in the echo area or with tooltips. Many standard menus displayed by Emacs now have help strings.  Eli Zaretskii committed Jun 18, 2001 831   Eli Zaretskii committed Aug 23, 2001 832 --  Eli Zaretskii committed Aug 22, 2001 833 834 ** New user option read-mail-command' specifies a command to use to read mail from the menu etc.  Dave Love committed Jan 10, 2000 835   Eli Zaretskii committed Aug 22, 2001 836 837 838 839 ** The environment variable EMACSLOCKDIR' is no longer used on MS-Windows. This environment variable was used when creating lock files. Emacs on MS-Windows does not use this variable anymore. This change was made before Emacs 21.1, but wasn't documented until now.  Dave Love committed Jan 10, 2000 840   Eli Zaretskii committed Aug 22, 2001 841 842 ** Highlighting of mouse-sensitive regions is now supported in the MS-DOS version of Emacs.  Dave Love committed Aug 21, 2000 843   Eli Zaretskii committed Aug 22, 2001 844 845 846 847 848 849 ** The new command msdos-set-mouse-buttons' forces the MS-DOS version of Emacs to behave as if the mouse had a specified number of buttons. This comes handy with mice that don't report their number of buttons correctly. One example is the wheeled mice, which report 3 buttons, but clicks on the middle button are not passed to the MS-DOS version of Emacs.  Gerd Moellmann committed Dec 27, 1999 850   Eli Zaretskii committed Aug 22, 2001 851 ** Customize changes  Gerd Moellmann committed Dec 27, 1999 852   Eli Zaretskii committed Aug 22, 2001 853 854 855 856 857 *** Customize now supports comments about customized items. Use the State' menu to add comments, or give a prefix argument to M-x customize-set-variable or M-x customize-set-value. Note that customization comments will cause the customizations to fail in earlier versions of Emacs.  Gerd Moellmann committed Sep 21, 2000 858   Eli Zaretskii committed Aug 22, 2001 859 860 861 *** The new option custom-buffer-done-function' says whether to kill Custom buffers when you've done with them or just bury them (the default).  Gerd Moellmann committed Oct 19, 2000 862   Eli Zaretskii committed Aug 22, 2001 863 864 865 866 867 *** If Emacs was invoked with the -q' or --no-init-file' options, it does not allow you to save customizations in your ~/.emacs' init file. This is because saving customizations from such a session would wipe out all the other customizationss you might have on your init file.  Gerd Moellmann committed Oct 19, 2000 868   Eli Zaretskii committed Aug 22, 2001 869 ** New features in evaluation commands  Gerd Moellmann committed Dec 21, 1999 870   Eli Zaretskii committed Aug 22, 2001 871 872 873 874 875 *** The commands to evaluate Lisp expressions, such as C-M-x in Lisp modes, C-j in Lisp Interaction mode, and M-:, now bind the variables print-level, print-length, and debug-on-error based on the new customizable variables eval-expression-print-level, eval-expression-print-length, and eval-expression-debug-on-error.  Dave Love committed Oct 03, 1999 876   Eli Zaretskii committed Jul 25, 2001 877 878 879 880 881 882 The default values for the first two of these variables are 12 and 4 respectively, which means that eval-expression' now prints at most the first 12 members of a list and at most 4 nesting levels deep (if the list is longer or deeper than that, an ellipsis ...' is printed).  Gerd Moellmann committed Jul 27, 2001 883 884  or on the printed text toggles between an abbreviated printed representation and an unabbreviated one.  Gerd Moellmann committed Jul 26, 2001 885   Eli Zaretskii committed Jul 25, 2001 886 887 888 The default value of eval-expression-debug-on-error is t, so any error during evaluation produces a backtrace.  Gerd Moellmann committed Jul 05, 2000 889 890 891 *** The function eval-defun' (M-C-x) now loads Edebug and instruments code when called with a prefix argument.  Gerd Moellmann committed Dec 12, 1999 892 893 894 895 896 897 898 899 900 901 ** CC mode changes. Note: This release contains changes that might not be compatible with current user setups (although it's believed that these incompatibilities will only show in very uncommon circumstances). However, since the impact is uncertain, these changes may be rolled back depending on user feedback. Therefore there's no forward compatibility guarantee wrt the new features introduced in this release.  Gerd Moellmann committed Mar 26, 2001 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 *** The hardcoded switch to "java" style in Java mode is gone. CC Mode used to automatically set the style to "java" when Java mode is entered. This has now been removed since it caused too much confusion. However, to keep backward compatibility to a certain extent, the default value for c-default-style now specifies the "java" style for java-mode, but "gnu" for all other modes (as before). So you won't notice the change if you haven't touched that variable. *** New cleanups, space-before-funcall and compact-empty-funcall. Two new cleanups have been added to c-cleanup-list: space-before-funcall causes a space to be inserted before the opening parenthesis of a function call, which gives the style "foo (bar)". compact-empty-funcall causes any space before a function call opening parenthesis to be removed if there are no arguments to the function. It's typically useful together with space-before-funcall to get the style "foo (bar)" and "foo()". *** Some keywords now automatically trigger reindentation. Keywords like "else", "while", "catch" and "finally" have been made "electric" to make them reindent automatically when they continue an earlier statement. An example: for (i = 0; i < 17; i++) if (a[i]) res += a[i]->offset; else Here, the "else" should be indented like the preceding "if", since it continues that statement. CC Mode will automatically reindent it after the "else" has been typed in full, since it's not until then it's possible to decide whether it's a new statement or a continuation of the preceding "if". CC Mode uses Abbrev mode to achieve this, which is therefore turned on by default. *** M-a and M-e now moves by sentence in multiline strings. Previously these two keys only moved by sentence in comments, which meant that sentence movement didn't work in strings containing documentation or other natural language text. The reason it's only activated in multiline strings (i.e. strings that contain a newline, even when escaped by a '\') is to avoid stopping in the short strings that often reside inside statements. Multiline strings almost always contain text in a natural language, as opposed to other strings that typically contain format specifications, commands, etc. Also, it's not that bothersome that M-a and M-e misses sentences in single line strings, since they're short anyway. *** Support for autodoc comments in Pike mode. Autodoc comments for Pike are used to extract documentation from the source, like Javadoc in Java. Pike mode now recognize this markup in comment prefixes and paragraph starts. *** The comment prefix regexps on c-comment-prefix may be mode specific. When c-comment-prefix is an association list, it specifies the comment line prefix on a per-mode basis, like c-default-style does. This change came about to support the special autodoc comment prefix in Pike mode only. *** Better handling of syntactic errors. The recovery after unbalanced parens earlier in the buffer has been improved; CC Mode now reports them by dinging and giving a message stating the offending line, but still recovers and indent the following lines in a sane way (most of the time). An "else" with no matching "if" is handled similarly. If an error is discovered while indenting a region, the whole region is still indented and the error is reported afterwards. *** Lineup functions may now return absolute columns. A lineup function can give an absolute column to indent the line to by returning a vector with the desired column as the first element. *** More robust and warning-free byte compilation. Although this is strictly not a user visible change (well, depending on the view of a user), it's still worth mentioning that CC Mode now can be compiled in the standard ways without causing trouble. Some code have also been moved between the subpackages to enhance the modularity somewhat. Thanks to Martin Buchholz for doing the groundwork.  Gerd Moellmann committed Jul 24, 2000 987 988 989 990 991 992 993 994 995 *** c-style-variables-are-local-p now defaults to t. This is an incompatible change that has been made to make the behavior of the style system wrt global variable settings less confusing for non-advanced users. If you know what this variable does you might want to set it to nil in your .emacs, otherwise you probably don't have to bother. Defaulting c-style-variables-are-local-p to t avoids the confusing situation that occurs when a user sets some style variables globally  Eli Zaretskii committed Jul 25, 2000 996 and edits both a Java and a non-Java file in the same Emacs session.  Gerd Moellmann committed Jul 24, 2000 997 998 999 1000 If the style variables aren't buffer local in this case, loading of the second file will cause the default style (either "gnu" or "java" by default) to override the global settings made by the user.  Gerd Moellmann committed Dec 12, 1999 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 *** New initialization procedure for the style system. When the initial style for a buffer is determined by CC Mode (from the variable c-default-style), the global values of style variables now take precedence over the values specified by the chosen style. This is different than the old behavior: previously, the style-specific settings would override the global settings. This change makes it possible to do simple configuration in the intuitive way with Customize or with setq lines in one's .emacs file. By default, the global value of every style variable is the new special symbol set-from-style, which causes the value to be taken from the style system. This means that in effect, only an explicit setting of a style variable will cause the "overriding" behavior described above. Also note that global settings override style-specific settings *only* when the initial style of a buffer is chosen by a CC Mode major mode function. When a style is chosen in other ways --- for example, by a call like (c-set-style "gnu") in a hook, or via M-x c-set-style --- then the style-specific values take precedence over any global style values. In Lisp terms, global values override style-specific values only when the new second argument to c-set-style is non-nil; see the function documentation for more info. The purpose of these changes is to make it easier for users, especially novice users, to do simple customizations with Customize or with setq in their .emacs files. On the other hand, the new system is intended to be compatible with advanced users' customizations as well, such as those that choose styles in hooks or whatnot. This new system is believed to be almost entirely compatible with current configurations, in spite of the changed precedence between style and global variable settings when a buffer's default style is set. (Thanks to Eric Eide for clarifying this explanation a bit.) **** c-offsets-alist is now a customizable variable. This became possible as a result of the new initialization behavior. This variable is treated slightly differently from the other style variables; instead of using the symbol set-from-style, it will be completed with the syntactic symbols it doesn't already contain when the style is first initialized. This means it now defaults to the empty list to make all syntactic elements get their values from the style system. **** Compatibility variable to restore the old behavior. In case your configuration doesn't work with this change, you can set c-old-style-variable-behavior to non-nil to get the old behavior back as far as possible. *** Improvements to line breaking and text filling. CC Mode now handles this more intelligently and seamlessly wrt the surrounding code, especially inside comments. For details see the new chapter about this in the manual. **** New variable to recognize comment line prefix decorations. The variable c-comment-prefix-regexp has been added to properly recognize the line prefix in both block and line comments. It's primarily used to initialize the various paragraph recognition and adaptive filling variables that the text handling functions uses. **** New variable c-block-comment-prefix. This is a generalization of the now obsolete variable c-comment-continuation-stars to handle arbitrary strings. **** CC Mode now uses adaptive fill mode. This to make it adapt better to the paragraph style inside comments. It's also possible to use other adaptive filling packages inside CC Mode, notably Kyle E. Jones' Filladapt mode (http://wonderworks.com/). A new convenience function c-setup-filladapt sets up Filladapt for use inside CC Mode. Note though that the 2.12 version of Filladapt lacks a feature that causes it to work suboptimally when c-comment-prefix-regexp can match the empty string (which it commonly does). A patch for that is available from the CC Mode web site (http://www.python.org/emacs/ cc-mode/).  Eli Zaretskii committed Aug 21, 2001 1080 1081 1082 1083 1084 1085 **** The variables c-hanging-comment-starter-p' and c-hanging-comment-ender-p', which controlled how comment starters and enders were filled, are not used anymore. The new version of the function c-fill-paragraph' keeps the comment starters and enders as they were before the filling.  Gerd Moellmann committed Dec 12, 1999 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 **** It's now possible to selectively turn off auto filling. The variable c-ignore-auto-fill is used to ignore auto fill mode in specific contexts, e.g. in preprocessor directives and in string literals. **** New context sensitive line break function c-context-line-break. It works like newline-and-indent in normal code, and adapts the line prefix according to the comment style when used inside comments. If you're normally using newline-and-indent, you might want to switch to this function. *** Fixes to IDL mode. It now does a better job in recognizing only the constructs relevant to IDL. E.g. it no longer matches "class" as the beginning of a struct block, but it does match the CORBA 2.3 "valuetype" keyword. Thanks to Eric Eide. *** Improvements to the Whitesmith style. It now keeps the style consistently on all levels and both when opening braces hangs and when they don't. **** New lineup function c-lineup-whitesmith-in-block. *** New lineup functions c-lineup-template-args and c-indent-multi-line-block. See their docstrings for details. c-lineup-template-args does a better job of tracking the brackets used as parens in C++ templates, and is used by default to line up continued template arguments. *** c-lineup-comment now preserves alignment with a comment on the previous line. It used to instead preserve comments that started in the column specified by comment-column. *** c-lineup-C-comments handles "free form" text comments. In comments with a long delimiter line at the start, the indentation is kept unchanged for lines that start with an empty comment line prefix. This is intended for the type of large block comments that contain documentation with its own formatting. In these you normally don't want CC Mode to change the indentation. *** The c' syntactic symbol is now relative to the comment start instead of the previous line, to make integers usable as lineup arguments. *** All lineup functions have gotten docstrings. *** More preprocessor directive movement functions. c-down-conditional does the reverse of c-up-conditional. c-up-conditional-with-else and c-down-conditional-with-else are variants of these that also stops at "#else" lines (suggested by Don Provan). *** Minor improvements to many movement functions in tricky situations.  Eli Zaretskii committed Aug 22, 2001 1139 ** Dired changes  Gerd Moellmann committed Apr 04, 2000 1140   Eli Zaretskii committed Aug 22, 2001 1141 1142 1143 *** New variable dired-recursive-deletes' determines if the delete command will delete non-empty directories recursively. The default is, delete only empty directories.  Gerd Moellmann committed Apr 04, 2000 1144   Eli Zaretskii committed Aug 22, 2001 1145 1146 1147 *** New variable dired-recursive-copies' determines if the copy command will copy directories recursively. The default is, do not copy directories recursively.  Gerd Moellmann committed Nov 11, 1999 1148   Eli Zaretskii committed Aug 22, 2001 1149 1150 1151 *** In command dired-do-shell-command' (usually bound to !') a ?' in the shell command has a special meaning similar to *', but with the difference that the command will be run on each file individually.  Gerd Moellmann committed Jul 26, 2000 1152   Eli Zaretskii committed Aug 22, 2001 1153 1154 1155 *** The new command dired-find-alternate-file' (usually bound to a') replaces the Dired buffer with the buffer for an alternate file or directory.  Gerd Moellmann committed Apr 04, 2000 1156   Gerd Moellmann committed Aug 28, 2001 1157 *** The new command dired-show-file-type' (usually bound to y') shows  Eli Zaretskii committed Aug 22, 2001 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 a message in the echo area describing what type of file the point is on. This command invokes the external program file' do its work, and so will only work on systems with that program, and will be only as accurate or inaccurate as it is. *** Dired now properly handles undo changes of adding/removing -R' from ls switches. *** Dired commands that prompt for a destination file now allow the use of the M-n' command in the minibuffer to insert the source filename, which the user can then edit. This only works if there is a single source file, not when operating on multiple marked files.  Dave Love committed Oct 03, 1999 1170   Eli Zaretskii committed Aug 22, 2001 1171 ** Gnus changes.  Gerd Moellmann committed Nov 11, 1999 1172   Eli Zaretskii committed Aug 22, 2001 1173 1174 1175 The Gnus NEWS entries are short, but they reflect sweeping changes in four areas: Article display treatment, MIME treatment, internationalization and mail-fetching.  Gerd Moellmann committed Nov 11, 1999 1176   Eli Zaretskii committed Aug 22, 2001 1177 1178 *** The mail-fetching functions have changed. See the manual for the many details. In particular, all procmail fetching variables are gone.  Gerd Moellmann committed Nov 11, 1999 1179   Eli Zaretskii committed Aug 22, 2001 1180 If you used procmail like in  Gerd Moellmann committed Nov 11, 1999 1181   Eli Zaretskii committed Aug 22, 2001 1182 1183 1184 1185 (setq nnmail-use-procmail t) (setq nnmail-spool-file 'procmail) (setq nnmail-procmail-directory "~/mail/incoming/") (setq nnmail-procmail-suffix "\\.in")  Gerd Moellmann committed Jan 28, 2000 1186   Eli Zaretskii committed Aug 22, 2001 1187 this now has changed to  Gerd Moellmann committed Nov 11, 1999 1188   Eli Zaretskii committed Aug 22, 2001 1189 1190 1191 (setq mail-sources '((directory :path "~/mail/incoming/" :suffix ".in")))  Gerd Moellmann committed Mar 18, 2000 1192   Eli Zaretskii committed Aug 22, 2001 1193 1194 More information is available in the info doc at Select Methods -> Getting Mail -> Mail Sources  Dave Love committed Oct 08, 1999 1195   Eli Zaretskii committed Aug 22, 2001 1196 1197 1198 1199 *** Gnus is now a MIME-capable reader. This affects many parts of Gnus, and adds a slew of new commands. See the manual for details. Separate MIME packages like RMIME, mime-compose etc., will probably no longer work; remove them and use the native facilities.  Gerd Moellmann committed Mar 18, 2000 1200   Eli Zaretskii committed Aug 22, 2001 1201 1202 1203 The FLIM/SEMI package still works with Emacs 21, but if you want to use the native facilities, you must remove any mailcap.el[c] that was installed by FLIM/SEMI version 1.13 or earlier.  Sam Steingold committed Jul 28, 2000 1204   Eli Zaretskii committed Aug 22, 2001 1205 1206 1207 1208 *** Gnus has also been multilingualized. This also affects too many parts of Gnus to summarize here, and adds many new variables. There are built-in facilities equivalent to those of gnus-mule.el, which is now just a compatibility layer.  Gerd Moellmann committed Oct 12, 1999 1209   Eli Zaretskii committed Aug 23, 2001 1210 1211 1212 *** gnus-mule.el is now just a compatibility layer over the built-in Gnus facilities.  Eli Zaretskii committed Aug 22, 2001 1213 1214 *** gnus-auto-select-first can now be a function to be called to position point.  Gerd Moellmann committed Oct 12, 1999 1215   Eli Zaretskii committed Aug 22, 2001 1216 1217 *** The user can now decide which extra headers should be included in summary buffers and NOV files.  Francesco Potortì committed Nov 01, 1999 1218   Eli Zaretskii committed Aug 22, 2001 1219 1220 *** gnus-article-display-hook' has been removed. Instead, a number of variables starting with gnus-treat-' have been added.  Francesco Potortì committed Nov 01, 1999 1221   Eli Zaretskii committed Aug 22, 2001 1222 1223 *** The Gnus posting styles have been redone again and now work in a subtly different manner.  Francesco Potortì committed Nov 01, 1999 1224   Eli Zaretskii committed Aug 22, 2001 1225 1226 1227 *** New web-based backends have been added: nnslashdot, nnwarchive and nnultimate. nnweb has been revamped, again, to keep up with ever-changing layouts.  Francesco Potortì committed Nov 01, 1999 1228   Eli Zaretskii committed Aug 22, 2001 1229 *** Gnus can now read IMAP mail via nnimap.  Francesco Potortì committed Nov 01, 1999 1230   Eli Zaretskii committed Aug 22, 2001 1231 *** There is image support of various kinds and some sound support.  Francesco Potortì committed Jan 28, 2001 1232   Eli Zaretskii committed Aug 22, 2001 1233 ** Changes in Texinfo mode.  Francesco Potortì committed Jan 28, 2001 1234   Eli Zaretskii committed Aug 22, 2001 1235 1236 *** A couple of new key bindings have been added for inserting Texinfo macros  Francesco Potortì committed Nov 01, 1999 1237   Eli Zaretskii committed Aug 22, 2001 1238 1239 1240 1241 1242 1243 1244 1245 1246  Key binding Macro ------------------------- C-c C-c C-s @strong C-c C-c C-e @emph C-c C-c u @uref C-c C-c q @quotation C-c C-c m @email C-c C-o @ ... @end M-RET @item  Francesco Potortì committed Nov 01, 1999 1247   Eli Zaretskii committed Aug 22, 2001 1248 *** The " key now inserts either " or  or '' depending on context.  Francesco Potortì committed Nov 01, 1999 1249   Eli Zaretskii committed Aug 22, 2001 1250 ** Changes in Outline mode.  Francesco Potortì committed Nov 01, 1999 1251   Eli Zaretskii committed Aug 22, 2001 1252 1253 1254 There is now support for Imenu to index headings. A new command outline-headers-as-kill' copies the visible headings in the region to the kill ring, e.g. to produce a table of contents.  Francesco Potortì committed Jan 14, 2001 1255   Eli Zaretskii committed Aug 22, 2001 1256 ** Changes to Emacs Server  Francesco Potortì committed Nov 01, 1999 1257   Eli Zaretskii committed Aug 22, 2001 1258 1259 1260 1261 1262 *** The new option server-kill-new-buffers' specifies what to do with buffers when done with them. If non-nil, the default, buffers are killed, unless they were already present before visiting them with Emacs Server. If nil, server-temp-file-regexp' specifies which buffers to kill, as before.  Francesco Potortì committed Nov 01, 1999 1263   Eli Zaretskii committed Aug 22, 2001 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 Please note that only buffers are killed that still have a client, i.e. buffers visited with emacsclient --no-wait' are never killed in this way. ** Both emacsclient and Emacs itself now accept command line options of the form +LINE:COLUMN in addition to +LINE. ** Changes to Show Paren mode. *** Overlays used by Show Paren mode now use a priority property. The new user option show-paren-priority specifies the priority to use. Default is 1000.  Francesco Potortì committed Nov 01, 1999 1276   Eli Zaretskii committed Aug 22, 2001 1277 1278 ** New command M-x check-parens can be used to find unbalanced paren groups and strings in buffers in Lisp mode (or other modes).  Gerd Moellmann committed Dec 06, 1999 1279   Eli Zaretskii committed Aug 22, 2001 1280 ** Changes to hideshow.el  Gerd Moellmann committed Mar 21, 2000 1281   Eli Zaretskii committed Aug 22, 2001 1282 *** Generalized block selection and traversal  Gerd Moellmann committed Dec 06, 1999 1283   Eli Zaretskii committed Aug 22, 2001 1284 1285 1286 1287 A block is now recognized by its start and end regexps (both strings), and an integer specifying which sub-expression in the start regexp serves as the place where a forward-sexp'-like function can operate. See the documentation of variable hs-special-modes-alist'.  Gerd Moellmann committed Dec 06, 1999 1288   Eli Zaretskii committed Aug 22, 2001 1289 1290 1291 1292 *** During incremental search, if Hideshow minor mode is active, hidden blocks are temporarily shown. The variable hs-headline' can be used in the mode line format to show the line at the beginning of the open block.  Gerd Moellmann committed Dec 06, 1999 1293   Eli Zaretskii committed Aug 22, 2001 1294 1295 1296 *** User option hs-hide-all-non-comment-function' specifies a function to be called at each top-level block beginning, instead of the normal block-hiding function.  Gerd Moellmann committed Dec 06, 1999 1297   Eli Zaretskii committed Aug 22, 2001 1298 *** The command hs-show-region' has been removed.  Gerd Moellmann committed Dec 06, 1999 1299   Eli Zaretskii committed Aug 22, 2001 1300 1301 1302 1303 *** The key bindings have changed to fit the Emacs conventions, roughly imitating those of Outline minor mode. Notably, the prefix for all bindings is now C-c @'. For details, see the documentation for hs-minor-mode'.  Gerd Moellmann committed Dec 06, 1999 1304   Eli Zaretskii committed Aug 22, 2001 1305 1306 *** The variable hs-show-hidden-short-form' has been removed, and hideshow.el now always behaves as if this variable were set to t.  Gerd Moellmann committed Dec 06, 1999 1307   Eli Zaretskii committed Aug 22, 2001 1308 ** Changes to Change Log mode and Add-Log functions  Gerd Moellmann committed Dec 06, 1999 1309   Eli Zaretskii committed Aug 22, 2001 1310 1311 1312 *** If you invoke add-change-log-entry' from a backup file, it makes an entry appropriate for the file's parent. This is useful for making log entries by comparing a version with deleted functions.  Gerd Moellmann committed Dec 04, 2000 1313   Eli Zaretskii committed Aug 22, 2001 1314 1315 **** New command M-x change-log-merge merges another log into the current buffer.  Francesco Potortì committed Mar 12, 2001 1316   Eli Zaretskii committed Aug 22, 2001 1317 1318 *** New command M-x change-log-redate fixes any old-style date entries in a log file.  Gerd Moellmann committed Mar 15, 2001 1319   Eli Zaretskii committed Aug 22, 2001 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 *** Change Log mode now adds a file's version number to change log entries if user-option change-log-version-info-enabled' is non-nil. Unless the file is under version control the search for a file's version number is performed based on regular expressions from change-log-version-number-regexp-list' which can be customized. Version numbers are only found in the first 10 percent of a file. *** Change Log mode now defines its own faces for font-lock highlighting. ** Changes to cmuscheme *** The user-option scheme-program-name' has been renamed cmuscheme-program-name' due to conflicts with xscheme.el. ** Changes in Font Lock *** The new function font-lock-remove-keywords' can be used to remove font-lock keywords from the current buffer or from a specific major mode. *** Multi-line patterns are now supported. Modes using this, should set font-lock-multiline to t in their font-lock-defaults. *** font-lock-syntactic-face-function' allows major-modes to choose the face used for each string/comment. *** A new standard face font-lock-doc-face'. Meant for Lisp docstrings, Javadoc comments and other "documentation in code". ** Changes to Shell mode *** The shell' command now accepts an optional argument to specify the buffer to use, which defaults to "*shell*". When used interactively, a non-default buffer may be specified by giving the shell' command a prefix argument (causing it to prompt for the buffer name). ** Comint (subshell) changes These changes generally affect all modes derived from comint mode, which include shell-mode, gdb-mode, scheme-interaction-mode, etc. *** Comint now by default interprets some carriage-control characters. Comint now removes CRs from CR LF sequences, and treats single CRs and BSs in the output in a way similar to a terminal (by deleting to the beginning of the line, or deleting the previous character, respectively). This is achieved by adding comint-carriage-motion' to the comint-output-filter-functions' hook by default. *** By default, comint no longer uses the variable comint-prompt-regexp' to distinguish prompts from user-input. Instead, it notices which parts of the text were output by the process, and which entered by the user, and attaches field' properties to allow emacs commands to use this information. Common movement commands, notably beginning-of-line, respect field boundaries in a fairly natural manner. To disable this feature, and use the old behavior, customize the user option comint-use-prompt-regexp-instead-of-fields'. *** Comint now includes new features to send commands to running processes and redirect the output to a designated buffer or buffers. *** The command M-x comint-redirect-send-command reads a command and buffer name from the mini-buffer. The command is sent to the current buffer's process, and its output is inserted into the specified buffer. The command M-x comint-redirect-send-command-to-process acts like M-x comint-redirect-send-command but additionally reads the name of the buffer whose process should be used from the mini-buffer. *** Packages based on comint now highlight user input and program prompts, and support choosing previous input with mouse-2. To control these features, see the user-options comint-highlight-input' and comint-highlight-prompt'. *** The new command comint-write-output' (usually bound to C-c C-s') saves the output from the most recent command to a file. With a prefix argument, it appends to the file. *** The command comint-kill-output' has been renamed comint-delete-output' (usually bound to C-c C-o'); the old name is aliased to it for compatibility. *** The new function comint-add-to-input-history' adds commands to the input ring (history). *** The new variable comint-input-history-ignore' is a regexp for identifying history lines that should be ignored, like tcsh time-stamp strings, starting with a #'. The default value of this variable is "^#". ** Changes to Rmail mode *** The new user-option rmail-user-mail-address-regexp can be set to fine tune the identification of the correspondent when receiving new mail. If it matches the address of the sender, the recipient is taken as correspondent of a mail. If nil, the default, user-login-name' and user-mail-address' are used to exclude yourself as correspondent. Usually you don't have to set this variable, except if you collect mails sent by you under different user names. Then it should be a regexp matching your mail addresses. *** The new user-option rmail-confirm-expunge controls whether and how to ask for confirmation before expunging deleted messages from an Rmail file. You can choose between no confirmation, confirmation with y-or-n-p, or confirmation with yes-or-no-p. Default is to ask for confirmation with yes-or-no-p. *** RET is now bound in the Rmail summary to rmail-summary-goto-msg, like j'. *** There is a new user option rmail-digest-end-regexps' that specifies the regular expressions to detect the line that ends a digest message. *** The new user option rmail-automatic-folder-directives' specifies in which folder to put messages automatically. *** The new function rmail-redecode-body' allows to fix a message with non-ASCII characters if Emacs happens to decode it incorrectly due to missing or malformed "charset=" header. ** The new user-option mail-envelope-from' can be used to specify an envelope-from address different from user-mail-address.  Eli Zaretskii committed Aug 23, 2001 1442 1443 1444 ** The variable mail-specify-envelope-from controls whether to use the -f option when sending mail.  Eli Zaretskii committed Sep 16, 2001 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 ** The Rmail command o' (rmail-output-to-rmail-file') now writes the current message in the internal emacs-mule' encoding, rather than in the encoding taken from the variable buffer-file-coding-system'. This allows to save messages whose characters cannot be safely encoded by the buffer's coding system, and makes sure the message will be displayed correctly when you later visit the target Rmail file. If you want your Rmail files be encoded in a specific coding system other than emacs-mule', you can customize the variable rmail-file-coding-system' to set its value to that coding system.  Eli Zaretskii committed Aug 22, 2001 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 ** Changes to TeX mode *** The default mode has been changed from plain-tex-mode' to latex-mode'. *** latex-mode now has a simple indentation algorithm. *** M-f and M-p jump around \begin...\end pairs. *** Added support for outline-minor-mode. ** Changes to RefTeX mode *** RefTeX has new support for index generation. Index entries can be created with C-c <', with completion available on index keys. Pressing C-c /' indexes the word at the cursor with a default macro. C-c >' compiles all index entries into an alphabetically sorted *Index* buffer which looks like the final index. Entries can be edited from that buffer. *** Label and citation key selection now allow to select several items and reference them together (use m' to mark items, a' or A' to use all marked entries). *** reftex.el has been split into a number of smaller files to reduce memory use when only a part of RefTeX is being used. *** a new command reftex-view-crossref-from-bibtex' (bound to C-c &' in BibTeX-mode) can be called in a BibTeX database buffer in order to show locations in LaTeX documents where a particular entry has been cited. ** Emacs Lisp mode now allows multiple levels of outline headings. The level of a heading is determined from the number of leading semicolons in a heading line. Toplevel forms starting with a (' in column 1 are always made leaves. ** The M-x time-stamp command (most commonly used on write-file-hooks) has the following new features: *** The patterns for finding the time stamp and for updating a pattern may match text spanning multiple lines. For example, some people like to have the filename and date on separate lines. The new variable time-stamp-inserts-lines controls the matching for multi-line patterns. *** More than one time stamp can be updated in the same file. This feature is useful if you need separate time stamps in a program source file to both include in formatted documentation and insert in the compiled binary. The same time-stamp will be written at each matching pattern. The variable time-stamp-count enables this new feature; it defaults to 1. ** Partial Completion mode now completes environment variables in file names. ** Ispell changes  Paul Eggert committed Oct 23, 1999 1512   Eli Zaretskii committed Aug 22, 2001 1513 1514 1515 *** The command ispell' now spell-checks a region if transient-mark-mode is on, and the mark is active. Otherwise it spell-checks the current buffer.  Dave Love committed Oct 14, 1999 1516   Eli Zaretskii committed Aug 22, 2001 1517 1518 *** Support for synchronous subprocesses - DOS/Windoze - has been added.  Gerd Moellmann committed Jan 09, 2001 1519   Eli Zaretskii committed Aug 22, 2001 1520 1521 *** An "alignment error" bug was fixed when a manual spelling correction is made and re-checked.  Kenichi Handa committed Feb 28, 2001 1522   Eli Zaretskii committed Aug 22, 2001 1523 *** An Italian, Portuguese, and Slovak dictionary definition has been added.  Kenichi Handa committed Feb 28, 2001 1524   Eli Zaretskii committed Aug 22, 2001 1525 1526 *** Region skipping performance has been vastly improved in some cases.  Kenichi Handa committed Feb 28, 2001 1527   Eli Zaretskii committed Aug 22, 2001 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 *** Spell checking HTML buffers has been improved and isn't so strict on syntax errors. *** The buffer-local words are now always placed on a new line at the end of the buffer. *** Spell checking now works in the MS-DOS version of Emacs. ** Makefile mode changes *** The mode now uses the abbrev table makefile-mode-abbrev-table'.  Kenichi Handa committed Feb 28, 2001 1539   Eli Zaretskii committed Aug 22, 2001 1540 1541 *** Conditionals and include statements are now highlighted when Fontlock mode is active.  Kenichi Handa committed Mar 21, 2001 1542   Eli Zaretskii committed Aug 22, 2001 1543 ** Isearch changes  Dave Love committed Nov 29, 1999 1544   Eli Zaretskii committed Aug 22, 2001 1545 1546 *** Isearch now puts a call to isearch-resume' in the command history, so that searches can be resumed.  Dave Love committed Nov 29, 1999 1547   Eli Zaretskii committed Aug 22, 2001 1548 1549 1550 1551 1552 1553 *** In Isearch mode, M-C-s and M-C-r are now bound like C-s and C-r, respectively, i.e. you can repeat a regexp isearch with the same keys that started the search. *** In Isearch mode, mouse-2 in the echo area now yanks the current selection into the search string rather than giving an error.  Dave Love committed Dec 08, 1999 1554   Eli Zaretskii committed Aug 22, 2001 1555 *** There is a new lazy highlighting feature in incremental search.  Gerd Moellmann committed Apr 03, 2000 1556   Eli Zaretskii committed Aug 22, 2001 1557 1558 1559 1560 1561 1562 Lazy highlighting is switched on/off by customizing variable isearch-lazy-highlight'. When active, all matches for the current search string are highlighted. The current match is highlighted as before using face isearch' or region'. All other matches are highlighted using face isearch-lazy-highlight-face' which defaults to secondary-selection'.  Sam Steingold committed Jul 26, 2000 1563   Eli Zaretskii committed Aug 22, 2001 1564 1565 1566 1567 1568 The extra highlighting makes it easier to anticipate where the cursor will end up each time you press C-s or C-r to repeat a pending search. Highlighting of these additional matches happens in a deferred fashion using "idle timers," so the cycles needed do not rob isearch of its usual snappy response.  Gerd Moellmann committed Aug 15, 2000 1569   Eli Zaretskii committed Aug 22, 2001 1570 1571 1572 1573 If isearch-lazy-highlight-cleanup' is set to t, highlights for matches are automatically cleared when you end the search. If it is set to nil, you can remove the highlights manually with M-x isearch-lazy-highlight-cleanup'. `