1 2 NEWS about less 3 4====================================================================== 5 6 For the latest news about less, see the "less" Web page: 7 http://www.greenwoodsoftware.com/less 8 You can also download the latest version of less from there. 9 10 To report bugs, suggestions or comments, send email to bug-less@gnu.org 11 12====================================================================== 13 14 Major changes between "less" versions 458 and 471 15 16* Don't overwrite history file; just append to it. 17 18* New command ESC-G goes to end of currently buffered data in a pipe. 19 20* In more-compatible mode, make the -p option apply to every file opened, 21 not just the first one. 22 23* In more-compatible mode, change the -e option to work like -E, not -EF. 24 25* Treat multiple CRs before LF are like one CR (all the CRs are hidden). 26 27* Allow "extra" string in lesskey file to append to a multi-char command 28 (like a search pattern), without executing the command. 29 30* Ignore -u/-U setting while viewing help file, so that 31 underline and bold chars are displayed correctly. 32 33* Improve detection of "binary" files in UTF-8 mode. 34 35* Fix bug with ++ commands. 36 37* Fix bugs and improve performance in ampersand filtering. 38 39* Automate construction of Unicode tables from Unicode database. 40 41====================================================================== 42 43 Major changes between "less" versions 451 and 458 44 45* Allow backslash escaping of metacharacters in LESS environment variable 46 after the --use-backslash option. 47 48* Don't quit if syntax errors are found in command line options. 49 50* Increase sizes of some internal buffers. 51 52* Fix configure bug with --with-regex=none. 53 54* Fix crash with "stty rows 0". 55 56* Fix Win32 attribute display bug. 57 58* Fix display bug when using up/down arrow on the command line. 59 60====================================================================== 61 62 Major changes between "less" versions 444 and 451 63 64* Add ESC-F command to keep reading data until a pattern is found. 65 66* Use exit code of LESSOPEN script if LESSOPEN starts with "||". 67 68* When up/down arrow is used on the command line immediately after 69 typing text, the next command starting with that text is found. 70 71* Add support for GNU regex. 72 73* Add configure option --with-regex=none and fix compile errors 74 when compiling with no regex library. 75 76* Fix bugs handling SGR sequences in Win32. 77 78* Fix possible crashes caused by malformed LESSOPEN or 79 LESSCLOSE variables. 80 81* Fix bug highlighting text which is discontiguous in the file 82 due to backspace processing. 83 84* Fix bug in displaying status column when scrolling backwards 85 with -J and -S in effect. 86 87====================================================================== 88 89 Major changes between "less" versions 443 and 444 90 91* Fix bug in unget handling that can cause strange effects on the 92 command line. 93 94* Remove vestiges of obsolete -l option that can cause a crash. 95 96====================================================================== 97 98 Major changes between "less" versions 436 and 443 99 100* Change search behavior such that when a search is given an explicit 101 pattern, the entire displayed screen is included in the search and 102 not just the portion after the target line. 103 104* Add -A option to change search behavior to the old way: only 105 the portion of the screen after the target line is searched. 106 107* Add %F formatting to prompt strings, replaced by the last component 108 of the input file. 109 110* Control-G while editing a command exits the command. 111 112* Less now exits with status 2 if control-C is pressed and -K is in effect. 113 114* Fix "ungetc overflow" when passing long commands via the -p option. 115 116* Fix bug in using line filtering via the & command 117 in combination with -i and -I. 118 119* Fix bug in handling negative arguments to the -j option. 120 121* Fix bug in handling %t in prompt strings. 122 123* Improve handling of long option names. 124 125* Improve percentage calculation for very large files. 126 127====================================================================== 128 129 Major changes between "less" versions 429 and 436 130 131* Don't pass "-" to non-pipe LESSOPEN unless it starts with "-". 132 133* Allow a fraction as the argument to the -# (--shift) option. 134 135* Fix highlight bug when underlined/overstruck text matches at end of line. 136 137* Fix non-regex searches with ctrl-R. 138 139====================================================================== 140 141 Major changes between "less" versions 424 and 429 142 143* LESSOPEN pipe will now be used on standard input, if the LESSOPEN 144 environment variable begins with "|-". 145 146* The -D option with one number now means use the normal background color. 147 148* Don't change permissions on history file if it is not a regular file. 149 150* Fix non-ANSI-compliant code that caused problems with some compilers. 151 152* Fix binary file detection in UTF-8 mode. 153 154* Fix display problems with long lines on "ignaw" terminals. 155 156* Fix problem interrupting the line number calculation for initial prompt. 157 158* Fix SGR emulation when dealing with multiple attributes (eg. bold+underline). 159 160* Fix highlight bug when searching for underlined/overstruck text. 161 162====================================================================== 163 164 Major changes between "less" versions 418 and 424 165 166* New "&" command allows filtering of lines based on a pattern. 167 168* Status column now displays a search match, even if the matched 169 string is scrolled off screen because -S is in effect. 170 171* Improve behavior of -F option. 172 173* Allow CSI character (0x9B) to work in UTF-8 mode. 174 175* Output carriage return at startup in case terminal doesn't default 176 to column 1. 177 178* Fix bug in '' (quote, quote) command after G command. 179 180====================================================================== 181 182 Major changes between "less" versions 416 and 418 183 184* Color escape sequences are now supported in WIN32 build. 185 186* Makefile now uses EXEEXT feature of autoconf. 187 188* Fix search bug when using -R and text contains ANSI color escape sequences. 189 190* Fix crash when using -r with UTF-8 text containing 0x9B bytes. 191 192* Fix display bug when using ' command to move less than one page forward. 193 194* Update GPL to version 3. 195 196====================================================================== 197 198 Major changes between "less" versions 409 and 416 199 200* New --follow-name option makes F command follow the name of a file 201 rather than the file descriptor if an open file is renamed. 202 203* Make searching with -i/-I work correctly with non-ASCII text. 204 205* Fix DJGPP build. 206 207====================================================================== 208 209 Major changes between "less" versions 406 and 409 210 211* Support CSI escape sequences, like SGR escape sequences. 212 213* Fix bug which caused screen to fail to repaint when window is resized. 214 215* Fix bug in using -i and -I flags with non-ASCII text. 216 217* Fix configure bug on systems which don't support langinfo.h. 218 219* Fix crash when searching text containing certain invalid UTF-8 sequences. 220 221====================================================================== 222 223 Major changes between "less" versions 394 and 406 224 225* Allow decimal point in number for % (percent) command. 226 227* Allow decimal point in number for -j option (fraction of screen height). 228 229* Make n command fetch previous pattern from history file on first search. 230 231* Don't rewrite history file if it has not changed. 232 233* Don't move to bottom of screen on first page. 234 235* Don't output extraneous newlines, so copy & pasting lines from the 236 output works better. 237 238* The -c option has been made identical with the -C option. 239 240* Allow "/dev/null" as synomym for "-" in LESSHISTFILE to indicate 241 that no history file should be used. 242 243* Search can now find text which follows a null byte, if the PCRE 244 library is used, or if no-regex searching (ctrl-R) is used. 245 246* Better compatibility with POSIX more specification. 247 248* Make -f work for directories. 249 250* Make "t" cmd traverse tags in the correct order. 251 252* Allow a few binary characters in the input file before warning 253 that the file is binary. 254 255* Don't warn that file is binary if it merely contains ANSI color sequences 256 and -R is in effect. 257 258* Update Unicode character tables. 259 260* Support DESTDIR in Makefile. 261 262* Fix bug when filename contains certain shell metacharacters such as "$". 263 264* Fix bug when resizing the window while waiting for input from a pipe. 265 266* Fix configure bugs. 267 268====================================================================== 269 270 Major changes between "less" versions 382 and 394 271 272* Add history file to save search and shell command history between 273 invocations of less. 274 275* Improve behavior of history list for search and shell commands. 276 277* Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C. 278 279* Improve handling of UTF-8 files and commands, including better 280 line wrapping and handling double-width chars. 281 282* Added LESSUTFBINFMT environment variable to control display of 283 non-printable characters in a UTF-8 file. 284 285* Add --with-secure option to configure, to make it easier to 286 build a secure version of less. 287 288* Show search matches in the status column even if search highlights 289 are disabled via the -G option or the ESC-u command. 290 291* Improve performance when the file contains very long lines. 292 293* Add "windows" charset. 294 295* Add man page for lessecho. 296 297* Add support for erase2 character, treated same as erase. 298 299* Use ASCII lowercase/uppercase logic when operating on the command line. 300 301* Update makefile for Borland C++ 5.5.1. 302 303* Fix bug in calculating number of pages for %D prompt. 304 305* Fix bug in handling tag file error. 306 307* Fix obscure bug if input file is deleted while viewing help. 308 309* Fix bug handling filenames which include square brackets. 310 311* Fix possible buffer overflow in "global" tag search. 312 313* Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE. 314 315* Fix buffer overflow in reverse search. 316 317====================================================================== 318 319 Major changes between "less" versions 381 and 382 320 321* Removed some old copyrighted code. 322 This probably breaks OS/9 support. 323 324====================================================================== 325 326 Major changes between "less" versions 378 and 381 327 328* New -L option to disable LESSOPEN processing. 329 330* Further support for large (64 bit) file addressing. 331 Large file support is now set up by the configure script. 332 333* Use autoconf 2.54. 334 Replace configure.in, acconfig.h, defines.h.top with configure.ac. 335 336* Overstriking underscore with underscore is now bold or underlined 337 depending on context. 338 339* Use only 7 spaces for line numbers in -N mode, if possible. 340 341* Fix some bugs in handling overstriking in UTF-8 files. 342 343* Fix some nroff issues in the man page. 344 345====================================================================== 346 347 Major changes between "less" versions 376 and 378 348 349* Bug fixes: 350 Default buffer space is now 64K as documented. 351 Search highlighting works properly when used with -R. 352 Windows version works properly when input file contains carriage returns. 353 Clean up some compiler warnings. 354 355====================================================================== 356 357 Major changes between "less" versions 358 and 376 358 359* -x option can now specify multiple variable-width tab stops. 360 361* -X option no longer disables keypad initialization. 362 New option --no-keypad disables keypad initialization. 363 364* New commands t and T step through multiple tag matches. 365 Added support for "global(1)" tags 366 (see http://www.gnu.org/software/global/global.html). 367 368* New prompt style set by option -Pw defines the message printed 369 while waiting for data in the F command. 370 371* System-wide lesskey file now defaults to sysless in etc directory 372 instead of .sysless in bin directory. 373 Use "configure --sysconfdir=..." to change it. 374 (For backwards compatibility, .sysless in bin is still recognized.) 375 376* Pressing RightArrow or LeftArrow while entering a number now shifts 377 the display N columns rather than editing the number itself. 378 379* Status column (enabled with -J) now shows search results. 380 381* Windows version sets window title. 382 383* Default LESSCHARSET for MS-DOS versions is now "dos". 384 385* Searching works better with ANSI (SGR) escape sequences. 386 ANSI color escape sequences are now supported in the MS-DOS (DJGPP) version. 387 388* Improved performance in reading very large pipes. 389 390* Eliminated some dependencies on file offets being 32 bits. 391 392* Fixed problems when viewing files with very long lines. 393 394* Fixed overstriking in UTF-8 mode, and overstriking tabs. 395 396* Improved horizontal shifting of text using -R option with ANSI color. 397 398* Improved handling of filenames containing shell metacharacters. 399 400* Some fixes for EBCDIC systems. 401 402* Some fixes for OS/2 systems. 403 404====================================================================== 405 406 Major changes between "less" versions 354 and 358 407 408* Add -J (--status-column) option to display a status column. 409 410* Add -# (--shift) option to set default horizontal shift distance. 411 Default horizontal shift distance is now one-half screen width. 412 413* Horizontal shifting does not shift line numbers if -N is in effect. 414 415* Horizontal shifting acts as though -S were set, to avoid confusion. 416 417====================================================================== 418 419 420 Major changes between "less" versions 352 and 354 421 422* Allow space after numeric-valued command line options. 423 424* Fix problem with configuring terminal libraries on some systems. 425 426* Add support for PCRE regular expression library. 427 428* Add --with-regex option to configure to allow manually selecting 429 a regular expression library. 430 431* Fix bug compiling with SECURE = 1. 432 433====================================================================== 434 435 436 Major changes between "less" versions 346 and 352 437 438* Enable UTF-8 if "UTF-8" appears in locale-related environment variables. 439 440* Add --with-editor option to configure script. 441 442* The -M prompt and = message now show the top and bottom line number. 443 444* Fix bug in running the editor on a file whose name contains quotes, etc. 445 446* Fix bug in horizontal scrolling of long lines. 447 448* Fix bug in doing :d on a file which contains marks. 449 450* Fix bug causing cleared lines to sometimes be filled with standout, 451 bold, underline, etc. on certain terminals. 452 453* Fixes for MS-DOS (DJGPP) version. 454 455====================================================================== 456 457 458 Major changes between "less" versions 340 and 346 459 460* The UTF-8 character set is now supported. 461 462* The default character set is now latin1 rather than ascii. 463 464* New option -R (--RAW-CONTROL-CHARS) is like -r but handles 465 long (wrapped) lines correctly, as long as the input contains only 466 normal text and ANSI color escape sequences. 467 468* New option -F (--quit-if-one-screen) quits if the text fits on 469 the first screen. 470 471* The -w option now highlights the target line of a g or p command. 472 473* A system-wide lesskey file is supported (LESSKEY_SYSTEM). 474 475* New escape for prompt strings: %c is replaced by column number. 476 477* New escape for prompt strings: %P is replaced by percentage into 478 file, based on line number rather than byte offset. 479 480* HOME and END keys now jump to beginning of file or end of file. 481 482====================================================================== 483 484 485 Major changes between "less" versions 337 and 340 486 487* Command line options for less may now be given in either the old 488 single-letter form, or a new long name form (--option-name). 489 See the less man page or "less --help" for the list of long option names. 490 491* Command line options for lesskey may now be given in a new long name 492 form. See the lesskey man page for the list of long option names. 493 494* New command -- toggles an option using the long option name. 495 496* New command __ queries an option using the long option name. 497 498* The old -- command is renamed as -!. 499 500* If a ^P is entered between the dash and the option letter of the - 501 command, the message describing the new setting is suppressed. 502 503* Lesskey files may now contain \k escape sequences to represent the 504 "special" keys (arrows, PAGE-UP/PAGE-DOWN, HOME, END, INSERT, DELETE). 505 506* New command :d removes the current file from the list of files. 507 508* New option -~ (like -w before version 335) 509 suppresses tildes after end-of-file. 510 511* Less is now released under the GNU General Public License. 512 513====================================================================== 514 515 516 Major changes between "less" versions 335 and 337 517 518* Fixed bugs in "make install". 519 520====================================================================== 521 522 523 Major changes between "less" versions 332 and 335 524 525* The old -w flag (suppress tildes after end-of-file) has been removed. 526 527* New -w flag highlights the first new line after a forward-screen. 528 529* New -W flag highlights the first new line after any forward movement. 530 531* Window resize works even if LINES and/or COLUMNS environment 532 variables are incorrect. 533 534* New percent escapes for prompt strings: 535 %d is replaced by the page number, and 536 %D is replaced by the number of pages in the file. 537 538* Added charsets "iso8859" and "ebcdic". 539 540* In Windows version, uses HOMEDRIVE and HOMEPATH if HOME is not defined. 541 542* Fixed some bugs causing incorrect display on DOS/Windows. 543 544====================================================================== 545 546 547 Major changes between "less" versions 330 and 332 548 549* Filenames from the command line are entered into the command history, 550 so UPARROW/DOWNARROW can be used to retrieve them from the :e command. 551 552* Now works correctly on Windows when using a scrolling terminal 553 window (buffer larger than display window). 554 555* On Windows, now restores the console screen on exit. 556 Use -X to get the old behavior. 557 558* Fixed bug on Windows when CAPS-LOCK or NUM-LOCK is pressed. 559 560* Fixed bug on Windows when piping output of an interactive program. 561 562* Fixed bug in tags file processing when tags file has DOS-style 563 line terminators (CR/LF). 564 565* Fixed compilation problem on OS/2. 566 567====================================================================== 568 569 570 Major changes between "less" versions 321 and 330 571 572* Now supports filenames containing spaces (in double quotes). 573 New option -" can be used to change the quoting characters. 574 575* In filename completion, a slash is appended to a directory name. 576 If the environment variable LESSSEPARATOR is set, the value of 577 that variable, rather than a slash, is appended. 578 579* LeftArrow and RightArrow are same as ESC-[ and ESC-]. 580 581* Added commands ESC-( and ESC-), same as ESC-[ and ESC-]. 582 583* A "quit" command defined in a lesskey file may now have an "extra" 584 string, which is used to return an exit code from less when it quits. 585 586* New environment variables LESSMETACHARS and LESSMETAESCAPE provide 587 more control over how less interfaces to the shell. 588 589* Ported to Microsoft Visual C compiler for Windows. 590 591* Ported to DJGPP compiler for MS-DOS. 592 593* Bug fixes. 594 595====================================================================== 596 597 598 Major changes between "less" versions 291 and 321 599 600* Command line at bottom of screen now scrolls, so it can be longer 601 than the screen width. 602 603* New commands ESC-] and ESC-[ scroll the display horizontally. 604 605* New command ESC-SPACE scrolls forward a full screen, even if it 606 hits end-of-file. 607 608* Alternate modifiers for search commands: ^N is same as !, 609 ^F is same as @, and ^E is same as *. 610 611* New modifier for search commands: ^K means highlight the matches 612 currently on-screen, but don't move to the first match. 613 614* New modifier for search commands: ^R means don't use regular 615 expressions in the search. 616 617* Environment variable LESSKEY gives name of default lesskey file. 618 619* Environment variable LESSSECURE will force less to run in 620 "secure" mode. 621 622* Command line argument "--" signals that the rest of the arguments 623 are files (not option flags). 624 625* Help file (less.hlp) is no longer installed. Help text is now 626 embedded in the less executable itself. 627 628* Added -Ph to change the prompt for the help text. 629 Added -Ps to change the default short prompt (same as plain -P). 630 631* Ported to the Borland C compiler for MS-DOS. 632 633* Ported to Windows 95 & Windows NT. 634 635* Ported to OS-9. 636 637* Ported to GNU Hurd. 638 639====================================================================== 640 641 642 Major changes between "less" versions 290 and 291 643 644* Less environment variables can be specified in lesskey files. 645 646* Fixed MS-DOS build. 647 648====================================================================== 649 650 651 Major changes between "less" versions 278 and 290 652 653* Accepts GNU-style options "--help" and "--version". 654 655* OS/2 version looks for less.ini in $HOME before $INIT and $PATH. 656 657* Bug fixes 658 659====================================================================== 660 661 662 Major changes between "less" versions 252 and 278 663 664* A LESSOPEN preprocessor may now pipe the converted file data to less, 665 rather than writing it to a temporary file. 666 667* Search pattern highlighting has been fixed. It now highlights 668 reliably, even if a string is split across two screen lines, 669 contains TABs, etc. 670 671* The -F flag (which suppress search highlighting) has been changed 672 to -G. A new flag, -g, changes search highlighting to highlight 673 only the string found by the last search command, instead of all 674 strings which match the last search command. 675 676* New flag -I acts like -i, but ignores case even if the search 677 pattern contains uppercase letters. 678 679* Less now checks for the environment variable VISUAL before EDITOR. 680 681* Ported to OS/2. 682 683====================================================================== 684 685 686 Major changes between "less" versions 237 and 252 687 688* Changes in line-editing keys: 689 The literal key is now ^V or ^A rather than \ (backslash). 690 Filename completion commands (TAB and ^L) are disabled 691 when typing a search pattern. 692 693* Line-editing command keys can be redefined using lesskey. 694 695* Lesskey with no input file defaults to $HOME/.lesskey 696 rather than standard input. 697 698* New option -V displays version number of less. 699 700* New option -V displays version number of lesskey. 701 702* Help file less.hlp is now installed by default in /usr/local/share 703 rather than /usr/local/lib. 704 705 706====================================================================== 707 708 709 Major changes between "less" versions 170 and 237 710 711* By popular demand, text which matches the current search pattern 712 is highlighted. New -F flag disables this feature. 713 714* Henry Spencer's regexp.c is now included, for systems which do not 715 have a regular expression library. 716 regexp.c is Copyright (c) 1986 by University of Toronto. 717 718* New line-editing keys, including command history (arrow keys) and 719 filename completion (TAB). 720 721* Input preprocessor allows modification of input files (e.g. uncompress) 722 via LESSOPEN/LESSCLOSE environment variables. 723 724* New -X flag disables sending termcap "ti" and "te" (initialize and 725 deinitialize) strings to the terminal. 726 727* Changing -i from within less now correctly affects a subsequent 728 repeated search. 729 730* Searching for underlined or overstruck text now works when the -u 731 flag is in effect, rather than the -i flag. 732 733* Use setlocale (LANG and LC_CTYPE environment variables) to determine 734 the character set if LESSCHARSET/LESSCHARDEF are not set. 735 736* The default format for displaying binary characters is now standout 737 (reverse video) rather than blinking. This can still be changed by 738 setting the LESSBINFMT environment variable. 739 740* Use autoconf installation technology. 741 742* Ported to MS-DOS. 743 744 ******************************** 745 Things that may surprise you 746 ******************************** 747 748* When you enter text at the bottom of the screen (search string, 749 filename, etc.), some keys act different than previously. 750 Specifically, \ (backslash), ESC, TAB, BACKTAB, and control-L 751 now have line editing functions. 752 753* Some previous unofficial versions of less were able to display 754 compressed files. The new LESSOPEN/LESSCLOSE feature now provides 755 this functionality in a different way. 756 757* Some previous unofficial versions of less provided a -Z flag to 758 set the number of lines of text to retain between full screen scrolls. 759 The -z-n flag (that is, -z with a negative number) provides this 760 functionality. 761 762 763====================================================================== 764 765 766 Major changes between "less" versions 123 and 170 767 768* New option -j allows target lines to be positioned anywhere on screen. 769 770* New option -S truncates displayed line at the screen width, 771 rather than wrapping onto the next line. 772 773* New option -y limits amount of forward scroll. 774 775* New option -T specifies a "tags" file. 776 777* Non-printable, non-control characters are displayed in octal. 778 Such characters, as well as control characters, are displayed 779 in blinking mode. 780 781* New command -+ sets an option to its default. 782* New command -- sets an option to the opposite of its default. 783 784* Lesskey file may have a string appended to a key's action, 785 which acts as though typed in after the command. 786 787* New commands ESC-^F and ESC-^B match arbitrary types of brackets. 788 789* New command F monitors a growing file (like "tail -f"). 790 791* New command | pipes a section of the input file into a shell command. 792 793* New command :x directly jumps to a file in the command line list. 794 795* Search commands have been enhanced and reorganized: 796 n Repeat search, same direction. 797 N Repeat search, opposite direction. 798 ESC-/ Search forward thru file boundaries 799 ESC-? Search backward thru file boundaries 800 ESC-n Repeat search thru file boundaries, same direction. 801 ESC-N Repeat search thru file boundaries, opposite direction. 802 Special character * causes search to search thru file boundaries. 803 Special character @ causes search to begin at start/end of file list. 804 805* Examining a new file adds it to the command line list. 806 A list of files, or an expression which matches more than one file, 807 may be examined; all of them are added to the command line list. 808 809* Environment variables LESSCHARSET and LESSCHARDEF can define 810 a non-ASCII character set. 811 812* Partial support for MSDOS, including options -R for repainting screen 813 on quit, -v/-V to select video mode, and -W to change window size. 814 815 816====================================================================== 817 818 819 Major changes between "less" versions 97 and 123 820 821* New option (-N) causes line numbers to be displayed in the 822 text of the file (like vi "set nu"). 823 824* New option (-?) prints help message immediately. 825 826* New option (-r) displays "raw" control characters, without 827 mapping them to ^X notation. 828 829* New option (-f) forces less to open non-regular files 830 (directories, etc). 831 832* New option (-k) can be used to specify lesskey files by name. 833 834* New option (-y) can be used to set a forward scroll limit 835 (like -h sets a backward scroll limit). 836 837* File marks (set by the m command) are now preserved when a new 838 file is edited. The ' command can thus be used to switch files. 839 840* New command ESC-/ searches all files (on the command line) 841 for a pattern. 842 843* New command ESC-n repeats previous search, spanning files. 844 845* The N command has been changed to repeat the previous search 846 in the reverse direction. The old N command is still available 847 via :n. 848 849* New command ESC-N repeats previous search in the reverse 850 direction and spanning files. 851 852* 8 bit characters are now supported. A new option (-g) can be 853 used to strip off the eighth bit (the previous behavior). 854 855* Options which take a following string (like -t) may now 856 optionally have a space between the option letter and the string. 857 858* Six new commands { } ( ) [ and ] can be used to match 859 brackets of specific types, similar to vi % command. 860 861* New commands z and w move forward/backward one window and 862 simultaneously set the window size. 863 864* Prompt string expansion now has %L for line number of the last 865 line in the file, and %E for the name of the editor. 866 Also, % escapes which refer to a line (b=bottom, t=top, etc.) 867 can use j for the jump target line. 868 869* New environment variable LESSEDIT can be used to tailor the 870 command string passed to the editor by the v command. 871 872* Examining a file which was previously examined will return 873 to the same position in the file. 874 875* A "%" is expanded to the current filename and a "#" to the 876 previous filename, in both shell commands and the E command. 877 (Previously % worked only in shell commands and # worked 878 only in the E command.) 879 880* New command ":ta" is equivalent to "-t". 881 882* New command "s" is equivalent to "-l". 883 884* The - command may be followed by "+X" to revert to the default 885 for option X, or "-X" to get the opposite of the default. 886 887* Lesskey files may now include characters after the action as 888 extra input to be parsed after the action; for example: 889 "toggle-option X" to toggle a specific option X. 890 891 892 893 894 895