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 481 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* Disable history feature when compiled with LESSHISTFILE set to "-". 21 22* In more-compatible mode, make the -p option apply to every file opened, 23 not just the first one. 24 25* In more-compatible mode, change the -e option to work like -E, not -EF. 26 27* Treat multiple CRs before LF are like one CR (all the CRs are hidden). 28 29* Allow "extra" string in lesskey file to append to a multi-char command 30 (like a search pattern), without executing the command. 31 32* Ignore -u/-U setting while viewing help file, so that 33 underline and bold chars are displayed correctly. 34 35* Improve detection of "binary" files in UTF-8 mode. 36 37* Fix bug with ++ commands. 38 39* Fix bug where prompt was sometimes not displayed with +G. 40 41* Fix possible memory corruption 42 43* Fix bugs and improve performance in ampersand filtering. 44 45* Automate construction of Unicode tables from Unicode database. 46 47* Allow %% escape sequence in LESSOPEN variable. 48 49====================================================================== 50 51 Major changes between "less" versions 451 and 458 52 53* Allow backslash escaping of metacharacters in LESS environment variable 54 after the --use-backslash option. 55 56* Don't quit if syntax errors are found in command line options. 57 58* Increase sizes of some internal buffers. 59 60* Fix configure bug with --with-regex=none. 61 62* Fix crash with "stty rows 0". 63 64* Fix Win32 attribute display bug. 65 66* Fix display bug when using up/down arrow on the command line. 67 68====================================================================== 69 70 Major changes between "less" versions 444 and 451 71 72* Add ESC-F command to keep reading data until a pattern is found. 73 74* Use exit code of LESSOPEN script if LESSOPEN starts with "||". 75 76* When up/down arrow is used on the command line immediately after 77 typing text, the next command starting with that text is found. 78 79* Add support for GNU regex. 80 81* Add configure option --with-regex=none and fix compile errors 82 when compiling with no regex library. 83 84* Fix bugs handling SGR sequences in Win32. 85 86* Fix possible crashes caused by malformed LESSOPEN or 87 LESSCLOSE variables. 88 89* Fix bug highlighting text which is discontiguous in the file 90 due to backspace processing. 91 92* Fix bug in displaying status column when scrolling backwards 93 with -J and -S in effect. 94 95====================================================================== 96 97 Major changes between "less" versions 443 and 444 98 99* Fix bug in unget handling that can cause strange effects on the 100 command line. 101 102* Remove vestiges of obsolete -l option that can cause a crash. 103 104====================================================================== 105 106 Major changes between "less" versions 436 and 443 107 108* Change search behavior such that when a search is given an explicit 109 pattern, the entire displayed screen is included in the search and 110 not just the portion after the target line. 111 112* Add -A option to change search behavior to the old way: only 113 the portion of the screen after the target line is searched. 114 115* Add %F formatting to prompt strings, replaced by the last component 116 of the input file. 117 118* Control-G while editing a command exits the command. 119 120* Less now exits with status 2 if control-C is pressed and -K is in effect. 121 122* Fix "ungetc overflow" when passing long commands via the -p option. 123 124* Fix bug in using line filtering via the & command 125 in combination with -i and -I. 126 127* Fix bug in handling negative arguments to the -j option. 128 129* Fix bug in handling %t in prompt strings. 130 131* Improve handling of long option names. 132 133* Improve percentage calculation for very large files. 134 135====================================================================== 136 137 Major changes between "less" versions 429 and 436 138 139* Don't pass "-" to non-pipe LESSOPEN unless it starts with "-". 140 141* Allow a fraction as the argument to the -# (--shift) option. 142 143* Fix highlight bug when underlined/overstruck text matches at end of line. 144 145* Fix non-regex searches with ctrl-R. 146 147====================================================================== 148 149 Major changes between "less" versions 424 and 429 150 151* LESSOPEN pipe will now be used on standard input, if the LESSOPEN 152 environment variable begins with "|-". 153 154* The -D option with one number now means use the normal background color. 155 156* Don't change permissions on history file if it is not a regular file. 157 158* Fix non-ANSI-compliant code that caused problems with some compilers. 159 160* Fix binary file detection in UTF-8 mode. 161 162* Fix display problems with long lines on "ignaw" terminals. 163 164* Fix problem interrupting the line number calculation for initial prompt. 165 166* Fix SGR emulation when dealing with multiple attributes (eg. bold+underline). 167 168* Fix highlight bug when searching for underlined/overstruck text. 169 170====================================================================== 171 172 Major changes between "less" versions 418 and 424 173 174* New "&" command allows filtering of lines based on a pattern. 175 176* Status column now displays a search match, even if the matched 177 string is scrolled off screen because -S is in effect. 178 179* Improve behavior of -F option. 180 181* Allow CSI character (0x9B) to work in UTF-8 mode. 182 183* Output carriage return at startup in case terminal doesn't default 184 to column 1. 185 186* Fix bug in '' (quote, quote) command after G command. 187 188====================================================================== 189 190 Major changes between "less" versions 416 and 418 191 192* Color escape sequences are now supported in WIN32 build. 193 194* Makefile now uses EXEEXT feature of autoconf. 195 196* Fix search bug when using -R and text contains ANSI color escape sequences. 197 198* Fix crash when using -r with UTF-8 text containing 0x9B bytes. 199 200* Fix display bug when using ' command to move less than one page forward. 201 202* Update GPL to version 3. 203 204====================================================================== 205 206 Major changes between "less" versions 409 and 416 207 208* New --follow-name option makes F command follow the name of a file 209 rather than the file descriptor if an open file is renamed. 210 211* Make searching with -i/-I work correctly with non-ASCII text. 212 213* Fix DJGPP build. 214 215====================================================================== 216 217 Major changes between "less" versions 406 and 409 218 219* Support CSI escape sequences, like SGR escape sequences. 220 221* Fix bug which caused screen to fail to repaint when window is resized. 222 223* Fix bug in using -i and -I flags with non-ASCII text. 224 225* Fix configure bug on systems which don't support langinfo.h. 226 227* Fix crash when searching text containing certain invalid UTF-8 sequences. 228 229====================================================================== 230 231 Major changes between "less" versions 394 and 406 232 233* Allow decimal point in number for % (percent) command. 234 235* Allow decimal point in number for -j option (fraction of screen height). 236 237* Make n command fetch previous pattern from history file on first search. 238 239* Don't rewrite history file if it has not changed. 240 241* Don't move to bottom of screen on first page. 242 243* Don't output extraneous newlines, so copy & pasting lines from the 244 output works better. 245 246* The -c option has been made identical with the -C option. 247 248* Allow "/dev/null" as synomym for "-" in LESSHISTFILE to indicate 249 that no history file should be used. 250 251* Search can now find text which follows a null byte, if the PCRE 252 library is used, or if no-regex searching (ctrl-R) is used. 253 254* Better compatibility with POSIX more specification. 255 256* Make -f work for directories. 257 258* Make "t" cmd traverse tags in the correct order. 259 260* Allow a few binary characters in the input file before warning 261 that the file is binary. 262 263* Don't warn that file is binary if it merely contains ANSI color sequences 264 and -R is in effect. 265 266* Update Unicode character tables. 267 268* Support DESTDIR in Makefile. 269 270* Fix bug when filename contains certain shell metacharacters such as "$". 271 272* Fix bug when resizing the window while waiting for input from a pipe. 273 274* Fix configure bugs. 275 276====================================================================== 277 278 Major changes between "less" versions 382 and 394 279 280* Add history file to save search and shell command history between 281 invocations of less. 282 283* Improve behavior of history list for search and shell commands. 284 285* Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C. 286 287* Improve handling of UTF-8 files and commands, including better 288 line wrapping and handling double-width chars. 289 290* Added LESSUTFBINFMT environment variable to control display of 291 non-printable characters in a UTF-8 file. 292 293* Add --with-secure option to configure, to make it easier to 294 build a secure version of less. 295 296* Show search matches in the status column even if search highlights 297 are disabled via the -G option or the ESC-u command. 298 299* Improve performance when the file contains very long lines. 300 301* Add "windows" charset. 302 303* Add man page for lessecho. 304 305* Add support for erase2 character, treated same as erase. 306 307* Use ASCII lowercase/uppercase logic when operating on the command line. 308 309* Update makefile for Borland C++ 5.5.1. 310 311* Fix bug in calculating number of pages for %D prompt. 312 313* Fix bug in handling tag file error. 314 315* Fix obscure bug if input file is deleted while viewing help. 316 317* Fix bug handling filenames which include square brackets. 318 319* Fix possible buffer overflow in "global" tag search. 320 321* Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE. 322 323* Fix buffer overflow in reverse search. 324 325====================================================================== 326 327 Major changes between "less" versions 381 and 382 328 329* Removed some old copyrighted code. 330 This probably breaks OS/9 support. 331 332====================================================================== 333 334 Major changes between "less" versions 378 and 381 335 336* New -L option to disable LESSOPEN processing. 337 338* Further support for large (64 bit) file addressing. 339 Large file support is now set up by the configure script. 340 341* Use autoconf 2.54. 342 Replace configure.in, acconfig.h, defines.h.top with configure.ac. 343 344* Overstriking underscore with underscore is now bold or underlined 345 depending on context. 346 347* Use only 7 spaces for line numbers in -N mode, if possible. 348 349* Fix some bugs in handling overstriking in UTF-8 files. 350 351* Fix some nroff issues in the man page. 352 353====================================================================== 354 355 Major changes between "less" versions 376 and 378 356 357* Bug fixes: 358 Default buffer space is now 64K as documented. 359 Search highlighting works properly when used with -R. 360 Windows version works properly when input file contains carriage returns. 361 Clean up some compiler warnings. 362 363====================================================================== 364 365 Major changes between "less" versions 358 and 376 366 367* -x option can now specify multiple variable-width tab stops. 368 369* -X option no longer disables keypad initialization. 370 New option --no-keypad disables keypad initialization. 371 372* New commands t and T step through multiple tag matches. 373 Added support for "global(1)" tags 374 (see http://www.gnu.org/software/global/global.html). 375 376* New prompt style set by option -Pw defines the message printed 377 while waiting for data in the F command. 378 379* System-wide lesskey file now defaults to sysless in etc directory 380 instead of .sysless in bin directory. 381 Use "configure --sysconfdir=..." to change it. 382 (For backwards compatibility, .sysless in bin is still recognized.) 383 384* Pressing RightArrow or LeftArrow while entering a number now shifts 385 the display N columns rather than editing the number itself. 386 387* Status column (enabled with -J) now shows search results. 388 389* Windows version sets window title. 390 391* Default LESSCHARSET for MS-DOS versions is now "dos". 392 393* Searching works better with ANSI (SGR) escape sequences. 394 ANSI color escape sequences are now supported in the MS-DOS (DJGPP) version. 395 396* Improved performance in reading very large pipes. 397 398* Eliminated some dependencies on file offets being 32 bits. 399 400* Fixed problems when viewing files with very long lines. 401 402* Fixed overstriking in UTF-8 mode, and overstriking tabs. 403 404* Improved horizontal shifting of text using -R option with ANSI color. 405 406* Improved handling of filenames containing shell metacharacters. 407 408* Some fixes for EBCDIC systems. 409 410* Some fixes for OS/2 systems. 411 412====================================================================== 413 414 Major changes between "less" versions 354 and 358 415 416* Add -J (--status-column) option to display a status column. 417 418* Add -# (--shift) option to set default horizontal shift distance. 419 Default horizontal shift distance is now one-half screen width. 420 421* Horizontal shifting does not shift line numbers if -N is in effect. 422 423* Horizontal shifting acts as though -S were set, to avoid confusion. 424 425====================================================================== 426 427 428 Major changes between "less" versions 352 and 354 429 430* Allow space after numeric-valued command line options. 431 432* Fix problem with configuring terminal libraries on some systems. 433 434* Add support for PCRE regular expression library. 435 436* Add --with-regex option to configure to allow manually selecting 437 a regular expression library. 438 439* Fix bug compiling with SECURE = 1. 440 441====================================================================== 442 443 444 Major changes between "less" versions 346 and 352 445 446* Enable UTF-8 if "UTF-8" appears in locale-related environment variables. 447 448* Add --with-editor option to configure script. 449 450* The -M prompt and = message now show the top and bottom line number. 451 452* Fix bug in running the editor on a file whose name contains quotes, etc. 453 454* Fix bug in horizontal scrolling of long lines. 455 456* Fix bug in doing :d on a file which contains marks. 457 458* Fix bug causing cleared lines to sometimes be filled with standout, 459 bold, underline, etc. on certain terminals. 460 461* Fixes for MS-DOS (DJGPP) version. 462 463====================================================================== 464 465 466 Major changes between "less" versions 340 and 346 467 468* The UTF-8 character set is now supported. 469 470* The default character set is now latin1 rather than ascii. 471 472* New option -R (--RAW-CONTROL-CHARS) is like -r but handles 473 long (wrapped) lines correctly, as long as the input contains only 474 normal text and ANSI color escape sequences. 475 476* New option -F (--quit-if-one-screen) quits if the text fits on 477 the first screen. 478 479* The -w option now highlights the target line of a g or p command. 480 481* A system-wide lesskey file is supported (LESSKEY_SYSTEM). 482 483* New escape for prompt strings: %c is replaced by column number. 484 485* New escape for prompt strings: %P is replaced by percentage into 486 file, based on line number rather than byte offset. 487 488* HOME and END keys now jump to beginning of file or end of file. 489 490====================================================================== 491 492 493 Major changes between "less" versions 337 and 340 494 495* Command line options for less may now be given in either the old 496 single-letter form, or a new long name form (--option-name). 497 See the less man page or "less --help" for the list of long option names. 498 499* Command line options for lesskey may now be given in a new long name 500 form. See the lesskey man page for the list of long option names. 501 502* New command -- toggles an option using the long option name. 503 504* New command __ queries an option using the long option name. 505 506* The old -- command is renamed as -!. 507 508* If a ^P is entered between the dash and the option letter of the - 509 command, the message describing the new setting is suppressed. 510 511* Lesskey files may now contain \k escape sequences to represent the 512 "special" keys (arrows, PAGE-UP/PAGE-DOWN, HOME, END, INSERT, DELETE). 513 514* New command :d removes the current file from the list of files. 515 516* New option -~ (like -w before version 335) 517 suppresses tildes after end-of-file. 518 519* Less is now released under the GNU General Public License. 520 521====================================================================== 522 523 524 Major changes between "less" versions 335 and 337 525 526* Fixed bugs in "make install". 527 528====================================================================== 529 530 531 Major changes between "less" versions 332 and 335 532 533* The old -w flag (suppress tildes after end-of-file) has been removed. 534 535* New -w flag highlights the first new line after a forward-screen. 536 537* New -W flag highlights the first new line after any forward movement. 538 539* Window resize works even if LINES and/or COLUMNS environment 540 variables are incorrect. 541 542* New percent escapes for prompt strings: 543 %d is replaced by the page number, and 544 %D is replaced by the number of pages in the file. 545 546* Added charsets "iso8859" and "ebcdic". 547 548* In Windows version, uses HOMEDRIVE and HOMEPATH if HOME is not defined. 549 550* Fixed some bugs causing incorrect display on DOS/Windows. 551 552====================================================================== 553 554 555 Major changes between "less" versions 330 and 332 556 557* Filenames from the command line are entered into the command history, 558 so UPARROW/DOWNARROW can be used to retrieve them from the :e command. 559 560* Now works correctly on Windows when using a scrolling terminal 561 window (buffer larger than display window). 562 563* On Windows, now restores the console screen on exit. 564 Use -X to get the old behavior. 565 566* Fixed bug on Windows when CAPS-LOCK or NUM-LOCK is pressed. 567 568* Fixed bug on Windows when piping output of an interactive program. 569 570* Fixed bug in tags file processing when tags file has DOS-style 571 line terminators (CR/LF). 572 573* Fixed compilation problem on OS/2. 574 575====================================================================== 576 577 578 Major changes between "less" versions 321 and 330 579 580* Now supports filenames containing spaces (in double quotes). 581 New option -" can be used to change the quoting characters. 582 583* In filename completion, a slash is appended to a directory name. 584 If the environment variable LESSSEPARATOR is set, the value of 585 that variable, rather than a slash, is appended. 586 587* LeftArrow and RightArrow are same as ESC-[ and ESC-]. 588 589* Added commands ESC-( and ESC-), same as ESC-[ and ESC-]. 590 591* A "quit" command defined in a lesskey file may now have an "extra" 592 string, which is used to return an exit code from less when it quits. 593 594* New environment variables LESSMETACHARS and LESSMETAESCAPE provide 595 more control over how less interfaces to the shell. 596 597* Ported to Microsoft Visual C compiler for Windows. 598 599* Ported to DJGPP compiler for MS-DOS. 600 601* Bug fixes. 602 603====================================================================== 604 605 606 Major changes between "less" versions 291 and 321 607 608* Command line at bottom of screen now scrolls, so it can be longer 609 than the screen width. 610 611* New commands ESC-] and ESC-[ scroll the display horizontally. 612 613* New command ESC-SPACE scrolls forward a full screen, even if it 614 hits end-of-file. 615 616* Alternate modifiers for search commands: ^N is same as !, 617 ^F is same as @, and ^E is same as *. 618 619* New modifier for search commands: ^K means highlight the matches 620 currently on-screen, but don't move to the first match. 621 622* New modifier for search commands: ^R means don't use regular 623 expressions in the search. 624 625* Environment variable LESSKEY gives name of default lesskey file. 626 627* Environment variable LESSSECURE will force less to run in 628 "secure" mode. 629 630* Command line argument "--" signals that the rest of the arguments 631 are files (not option flags). 632 633* Help file (less.hlp) is no longer installed. Help text is now 634 embedded in the less executable itself. 635 636* Added -Ph to change the prompt for the help text. 637 Added -Ps to change the default short prompt (same as plain -P). 638 639* Ported to the Borland C compiler for MS-DOS. 640 641* Ported to Windows 95 & Windows NT. 642 643* Ported to OS-9. 644 645* Ported to GNU Hurd. 646 647====================================================================== 648 649 650 Major changes between "less" versions 290 and 291 651 652* Less environment variables can be specified in lesskey files. 653 654* Fixed MS-DOS build. 655 656====================================================================== 657 658 659 Major changes between "less" versions 278 and 290 660 661* Accepts GNU-style options "--help" and "--version". 662 663* OS/2 version looks for less.ini in $HOME before $INIT and $PATH. 664 665* Bug fixes 666 667====================================================================== 668 669 670 Major changes between "less" versions 252 and 278 671 672* A LESSOPEN preprocessor may now pipe the converted file data to less, 673 rather than writing it to a temporary file. 674 675* Search pattern highlighting has been fixed. It now highlights 676 reliably, even if a string is split across two screen lines, 677 contains TABs, etc. 678 679* The -F flag (which suppress search highlighting) has been changed 680 to -G. A new flag, -g, changes search highlighting to highlight 681 only the string found by the last search command, instead of all 682 strings which match the last search command. 683 684* New flag -I acts like -i, but ignores case even if the search 685 pattern contains uppercase letters. 686 687* Less now checks for the environment variable VISUAL before EDITOR. 688 689* Ported to OS/2. 690 691====================================================================== 692 693 694 Major changes between "less" versions 237 and 252 695 696* Changes in line-editing keys: 697 The literal key is now ^V or ^A rather than \ (backslash). 698 Filename completion commands (TAB and ^L) are disabled 699 when typing a search pattern. 700 701* Line-editing command keys can be redefined using lesskey. 702 703* Lesskey with no input file defaults to $HOME/.lesskey 704 rather than standard input. 705 706* New option -V displays version number of less. 707 708* New option -V displays version number of lesskey. 709 710* Help file less.hlp is now installed by default in /usr/local/share 711 rather than /usr/local/lib. 712 713 714====================================================================== 715 716 717 Major changes between "less" versions 170 and 237 718 719* By popular demand, text which matches the current search pattern 720 is highlighted. New -F flag disables this feature. 721 722* Henry Spencer's regexp.c is now included, for systems which do not 723 have a regular expression library. 724 regexp.c is Copyright (c) 1986 by University of Toronto. 725 726* New line-editing keys, including command history (arrow keys) and 727 filename completion (TAB). 728 729* Input preprocessor allows modification of input files (e.g. uncompress) 730 via LESSOPEN/LESSCLOSE environment variables. 731 732* New -X flag disables sending termcap "ti" and "te" (initialize and 733 deinitialize) strings to the terminal. 734 735* Changing -i from within less now correctly affects a subsequent 736 repeated search. 737 738* Searching for underlined or overstruck text now works when the -u 739 flag is in effect, rather than the -i flag. 740 741* Use setlocale (LANG and LC_CTYPE environment variables) to determine 742 the character set if LESSCHARSET/LESSCHARDEF are not set. 743 744* The default format for displaying binary characters is now standout 745 (reverse video) rather than blinking. This can still be changed by 746 setting the LESSBINFMT environment variable. 747 748* Use autoconf installation technology. 749 750* Ported to MS-DOS. 751 752 ******************************** 753 Things that may surprise you 754 ******************************** 755 756* When you enter text at the bottom of the screen (search string, 757 filename, etc.), some keys act different than previously. 758 Specifically, \ (backslash), ESC, TAB, BACKTAB, and control-L 759 now have line editing functions. 760 761* Some previous unofficial versions of less were able to display 762 compressed files. The new LESSOPEN/LESSCLOSE feature now provides 763 this functionality in a different way. 764 765* Some previous unofficial versions of less provided a -Z flag to 766 set the number of lines of text to retain between full screen scrolls. 767 The -z-n flag (that is, -z with a negative number) provides this 768 functionality. 769 770 771====================================================================== 772 773 774 Major changes between "less" versions 123 and 170 775 776* New option -j allows target lines to be positioned anywhere on screen. 777 778* New option -S truncates displayed line at the screen width, 779 rather than wrapping onto the next line. 780 781* New option -y limits amount of forward scroll. 782 783* New option -T specifies a "tags" file. 784 785* Non-printable, non-control characters are displayed in octal. 786 Such characters, as well as control characters, are displayed 787 in blinking mode. 788 789* New command -+ sets an option to its default. 790* New command -- sets an option to the opposite of its default. 791 792* Lesskey file may have a string appended to a key's action, 793 which acts as though typed in after the command. 794 795* New commands ESC-^F and ESC-^B match arbitrary types of brackets. 796 797* New command F monitors a growing file (like "tail -f"). 798 799* New command | pipes a section of the input file into a shell command. 800 801* New command :x directly jumps to a file in the command line list. 802 803* Search commands have been enhanced and reorganized: 804 n Repeat search, same direction. 805 N Repeat search, opposite direction. 806 ESC-/ Search forward thru file boundaries 807 ESC-? Search backward thru file boundaries 808 ESC-n Repeat search thru file boundaries, same direction. 809 ESC-N Repeat search thru file boundaries, opposite direction. 810 Special character * causes search to search thru file boundaries. 811 Special character @ causes search to begin at start/end of file list. 812 813* Examining a new file adds it to the command line list. 814 A list of files, or an expression which matches more than one file, 815 may be examined; all of them are added to the command line list. 816 817* Environment variables LESSCHARSET and LESSCHARDEF can define 818 a non-ASCII character set. 819 820* Partial support for MSDOS, including options -R for repainting screen 821 on quit, -v/-V to select video mode, and -W to change window size. 822 823 824====================================================================== 825 826 827 Major changes between "less" versions 97 and 123 828 829* New option (-N) causes line numbers to be displayed in the 830 text of the file (like vi "set nu"). 831 832* New option (-?) prints help message immediately. 833 834* New option (-r) displays "raw" control characters, without 835 mapping them to ^X notation. 836 837* New option (-f) forces less to open non-regular files 838 (directories, etc). 839 840* New option (-k) can be used to specify lesskey files by name. 841 842* New option (-y) can be used to set a forward scroll limit 843 (like -h sets a backward scroll limit). 844 845* File marks (set by the m command) are now preserved when a new 846 file is edited. The ' command can thus be used to switch files. 847 848* New command ESC-/ searches all files (on the command line) 849 for a pattern. 850 851* New command ESC-n repeats previous search, spanning files. 852 853* The N command has been changed to repeat the previous search 854 in the reverse direction. The old N command is still available 855 via :n. 856 857* New command ESC-N repeats previous search in the reverse 858 direction and spanning files. 859 860* 8 bit characters are now supported. A new option (-g) can be 861 used to strip off the eighth bit (the previous behavior). 862 863* Options which take a following string (like -t) may now 864 optionally have a space between the option letter and the string. 865 866* Six new commands { } ( ) [ and ] can be used to match 867 brackets of specific types, similar to vi % command. 868 869* New commands z and w move forward/backward one window and 870 simultaneously set the window size. 871 872* Prompt string expansion now has %L for line number of the last 873 line in the file, and %E for the name of the editor. 874 Also, % escapes which refer to a line (b=bottom, t=top, etc.) 875 can use j for the jump target line. 876 877* New environment variable LESSEDIT can be used to tailor the 878 command string passed to the editor by the v command. 879 880* Examining a file which was previously examined will return 881 to the same position in the file. 882 883* A "%" is expanded to the current filename and a "#" to the 884 previous filename, in both shell commands and the E command. 885 (Previously % worked only in shell commands and # worked 886 only in the E command.) 887 888* New command ":ta" is equivalent to "-t". 889 890* New command "s" is equivalent to "-l". 891 892* The - command may be followed by "+X" to revert to the default 893 for option X, or "-X" to get the opposite of the default. 894 895* Lesskey files may now include characters after the action as 896 extra input to be parsed after the action; for example: 897 "toggle-option X" to toggle a specific option X. 898 899 900 901 902 903