4 ======================================================================
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.
10 To report bugs, suggestions or comments, send email to bug-less@gnu.org
12 ======================================================================
14 Major changes between "less" versions 487 and 491
16 * Don't output terminal init sequence if using -F and file fits on one screen.
18 * Use ANSI prototypes in funcs.h declarations.
20 * Fix some const mismatches.
22 * Remove "register" in variable declarations.
24 * Fix some memory leaks.
26 ======================================================================
28 Major changes between "less" versions 481 and 487
30 * New commands ESC-{ and ESC-} to shift to start/end of displayed lines.
32 * Make search highlights work correctly when changing caselessness with -i.
34 * New option -Da in Windows version to enable SGR mode.
36 * Fix "nothing to search" error when top or bottom line on screen is empty.
38 * Fix bug when terminal has no "cm" termcap entry.
40 * Fix incorrect display when entering double-width chars in search string.
42 * Fix bug in Unicode handling that missed some double width characters.
44 * Update Unicode database to 9.0.0.
46 ======================================================================
48 Major changes between "less" versions 458 and 481
50 * Don't overwrite history file; just append to it.
52 * New command ESC-G goes to end of currently buffered data in a pipe.
54 * Disable history feature when compiled with LESSHISTFILE set to "-".
56 * In more-compatible mode, make the -p option apply to every file opened,
57 not just the first one.
59 * In more-compatible mode, change the -e option to work like -E, not -EF.
61 * Treat multiple CRs before LF are like one CR (all the CRs are hidden).
63 * Allow "extra" string in lesskey file to append to a multi-char command
64 (like a search pattern), without executing the command.
66 * Ignore -u/-U setting while viewing help file, so that
67 underline and bold chars are displayed correctly.
69 * Improve detection of "binary" files in UTF-8 mode.
71 * Fix bug with ++ commands.
73 * Fix bug where prompt was sometimes not displayed with +G.
75 * Fix possible memory corruption
77 * Fix bugs and improve performance in ampersand filtering.
79 * Automate construction of Unicode tables from Unicode database.
81 * Allow %% escape sequence in LESSOPEN variable.
83 ======================================================================
85 Major changes between "less" versions 451 and 458
87 * Allow backslash escaping of metacharacters in LESS environment variable
88 after the --use-backslash option.
90 * Don't quit if syntax errors are found in command line options.
92 * Increase sizes of some internal buffers.
94 * Fix configure bug with --with-regex=none.
96 * Fix crash with "stty rows 0".
98 * Fix Win32 attribute display bug.
100 * Fix display bug when using up/down arrow on the command line.
102 ======================================================================
104 Major changes between "less" versions 444 and 451
106 * Add ESC-F command to keep reading data until a pattern is found.
108 * Use exit code of LESSOPEN script if LESSOPEN starts with "||".
110 * When up/down arrow is used on the command line immediately after
111 typing text, the next command starting with that text is found.
113 * Add support for GNU regex.
115 * Add configure option --with-regex=none and fix compile errors
116 when compiling with no regex library.
118 * Fix bugs handling SGR sequences in Win32.
120 * Fix possible crashes caused by malformed LESSOPEN or
123 * Fix bug highlighting text which is discontiguous in the file
124 due to backspace processing.
126 * Fix bug in displaying status column when scrolling backwards
127 with -J and -S in effect.
129 ======================================================================
131 Major changes between "less" versions 443 and 444
133 * Fix bug in unget handling that can cause strange effects on the
136 * Remove vestiges of obsolete -l option that can cause a crash.
138 ======================================================================
140 Major changes between "less" versions 436 and 443
142 * Change search behavior such that when a search is given an explicit
143 pattern, the entire displayed screen is included in the search and
144 not just the portion after the target line.
146 * Add -A option to change search behavior to the old way: only
147 the portion of the screen after the target line is searched.
149 * Add %F formatting to prompt strings, replaced by the last component
152 * Control-G while editing a command exits the command.
154 * Less now exits with status 2 if control-C is pressed and -K is in effect.
156 * Fix "ungetc overflow" when passing long commands via the -p option.
158 * Fix bug in using line filtering via the & command
159 in combination with -i and -I.
161 * Fix bug in handling negative arguments to the -j option.
163 * Fix bug in handling %t in prompt strings.
165 * Improve handling of long option names.
167 * Improve percentage calculation for very large files.
169 ======================================================================
171 Major changes between "less" versions 429 and 436
173 * Don't pass "-" to non-pipe LESSOPEN unless it starts with "-".
175 * Allow a fraction as the argument to the -# (--shift) option.
177 * Fix highlight bug when underlined/overstruck text matches at end of line.
179 * Fix non-regex searches with ctrl-R.
181 ======================================================================
183 Major changes between "less" versions 424 and 429
185 * LESSOPEN pipe will now be used on standard input, if the LESSOPEN
186 environment variable begins with "|-".
188 * The -D option with one number now means use the normal background color.
190 * Don't change permissions on history file if it is not a regular file.
192 * Fix non-ANSI-compliant code that caused problems with some compilers.
194 * Fix binary file detection in UTF-8 mode.
196 * Fix display problems with long lines on "ignaw" terminals.
198 * Fix problem interrupting the line number calculation for initial prompt.
200 * Fix SGR emulation when dealing with multiple attributes (eg. bold+underline).
202 * Fix highlight bug when searching for underlined/overstruck text.
204 ======================================================================
206 Major changes between "less" versions 418 and 424
208 * New "&" command allows filtering of lines based on a pattern.
210 * Status column now displays a search match, even if the matched
211 string is scrolled off screen because -S is in effect.
213 * Improve behavior of -F option.
215 * Allow CSI character (0x9B) to work in UTF-8 mode.
217 * Output carriage return at startup in case terminal doesn't default
220 * Fix bug in '' (quote, quote) command after G command.
222 ======================================================================
224 Major changes between "less" versions 416 and 418
226 * Color escape sequences are now supported in WIN32 build.
228 * Makefile now uses EXEEXT feature of autoconf.
230 * Fix search bug when using -R and text contains ANSI color escape sequences.
232 * Fix crash when using -r with UTF-8 text containing 0x9B bytes.
234 * Fix display bug when using ' command to move less than one page forward.
236 * Update GPL to version 3.
238 ======================================================================
240 Major changes between "less" versions 409 and 416
242 * New --follow-name option makes F command follow the name of a file
243 rather than the file descriptor if an open file is renamed.
245 * Make searching with -i/-I work correctly with non-ASCII text.
249 ======================================================================
251 Major changes between "less" versions 406 and 409
253 * Support CSI escape sequences, like SGR escape sequences.
255 * Fix bug which caused screen to fail to repaint when window is resized.
257 * Fix bug in using -i and -I flags with non-ASCII text.
259 * Fix configure bug on systems which don't support langinfo.h.
261 * Fix crash when searching text containing certain invalid UTF-8 sequences.
263 ======================================================================
265 Major changes between "less" versions 394 and 406
267 * Allow decimal point in number for % (percent) command.
269 * Allow decimal point in number for -j option (fraction of screen height).
271 * Make n command fetch previous pattern from history file on first search.
273 * Don't rewrite history file if it has not changed.
275 * Don't move to bottom of screen on first page.
277 * Don't output extraneous newlines, so copy & pasting lines from the
280 * The -c option has been made identical with the -C option.
282 * Allow "/dev/null" as synomym for "-" in LESSHISTFILE to indicate
283 that no history file should be used.
285 * Search can now find text which follows a null byte, if the PCRE
286 library is used, or if no-regex searching (ctrl-R) is used.
288 * Better compatibility with POSIX more specification.
290 * Make -f work for directories.
292 * Make "t" cmd traverse tags in the correct order.
294 * Allow a few binary characters in the input file before warning
295 that the file is binary.
297 * Don't warn that file is binary if it merely contains ANSI color sequences
300 * Update Unicode character tables.
302 * Support DESTDIR in Makefile.
304 * Fix bug when filename contains certain shell metacharacters such as "$".
306 * Fix bug when resizing the window while waiting for input from a pipe.
308 * Fix configure bugs.
310 ======================================================================
312 Major changes between "less" versions 382 and 394
314 * Add history file to save search and shell command history between
317 * Improve behavior of history list for search and shell commands.
319 * Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C.
321 * Improve handling of UTF-8 files and commands, including better
322 line wrapping and handling double-width chars.
324 * Added LESSUTFBINFMT environment variable to control display of
325 non-printable characters in a UTF-8 file.
327 * Add --with-secure option to configure, to make it easier to
328 build a secure version of less.
330 * Show search matches in the status column even if search highlights
331 are disabled via the -G option or the ESC-u command.
333 * Improve performance when the file contains very long lines.
335 * Add "windows" charset.
337 * Add man page for lessecho.
339 * Add support for erase2 character, treated same as erase.
341 * Use ASCII lowercase/uppercase logic when operating on the command line.
343 * Update makefile for Borland C++ 5.5.1.
345 * Fix bug in calculating number of pages for %D prompt.
347 * Fix bug in handling tag file error.
349 * Fix obscure bug if input file is deleted while viewing help.
351 * Fix bug handling filenames which include square brackets.
353 * Fix possible buffer overflow in "global" tag search.
355 * Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE.
357 * Fix buffer overflow in reverse search.
359 ======================================================================
361 Major changes between "less" versions 381 and 382
363 * Removed some old copyrighted code.
364 This probably breaks OS/9 support.
366 ======================================================================
368 Major changes between "less" versions 378 and 381
370 * New -L option to disable LESSOPEN processing.
372 * Further support for large (64 bit) file addressing.
373 Large file support is now set up by the configure script.
376 Replace configure.in, acconfig.h, defines.h.top with configure.ac.
378 * Overstriking underscore with underscore is now bold or underlined
379 depending on context.
381 * Use only 7 spaces for line numbers in -N mode, if possible.
383 * Fix some bugs in handling overstriking in UTF-8 files.
385 * Fix some nroff issues in the man page.
387 ======================================================================
389 Major changes between "less" versions 376 and 378
392 Default buffer space is now 64K as documented.
393 Search highlighting works properly when used with -R.
394 Windows version works properly when input file contains carriage returns.
395 Clean up some compiler warnings.
397 ======================================================================
399 Major changes between "less" versions 358 and 376
401 * -x option can now specify multiple variable-width tab stops.
403 * -X option no longer disables keypad initialization.
404 New option --no-keypad disables keypad initialization.
406 * New commands t and T step through multiple tag matches.
407 Added support for "global(1)" tags
408 (see http://www.gnu.org/software/global/global.html).
410 * New prompt style set by option -Pw defines the message printed
411 while waiting for data in the F command.
413 * System-wide lesskey file now defaults to sysless in etc directory
414 instead of .sysless in bin directory.
415 Use "configure --sysconfdir=..." to change it.
416 (For backwards compatibility, .sysless in bin is still recognized.)
418 * Pressing RightArrow or LeftArrow while entering a number now shifts
419 the display N columns rather than editing the number itself.
421 * Status column (enabled with -J) now shows search results.
423 * Windows version sets window title.
425 * Default LESSCHARSET for MS-DOS versions is now "dos".
427 * Searching works better with ANSI (SGR) escape sequences.
428 ANSI color escape sequences are now supported in the MS-DOS (DJGPP) version.
430 * Improved performance in reading very large pipes.
432 * Eliminated some dependencies on file offets being 32 bits.
434 * Fixed problems when viewing files with very long lines.
436 * Fixed overstriking in UTF-8 mode, and overstriking tabs.
438 * Improved horizontal shifting of text using -R option with ANSI color.
440 * Improved handling of filenames containing shell metacharacters.
442 * Some fixes for EBCDIC systems.
444 * Some fixes for OS/2 systems.
446 ======================================================================
448 Major changes between "less" versions 354 and 358
450 * Add -J (--status-column) option to display a status column.
452 * Add -# (--shift) option to set default horizontal shift distance.
453 Default horizontal shift distance is now one-half screen width.
455 * Horizontal shifting does not shift line numbers if -N is in effect.
457 * Horizontal shifting acts as though -S were set, to avoid confusion.
459 ======================================================================
462 Major changes between "less" versions 352 and 354
464 * Allow space after numeric-valued command line options.
466 * Fix problem with configuring terminal libraries on some systems.
468 * Add support for PCRE regular expression library.
470 * Add --with-regex option to configure to allow manually selecting
471 a regular expression library.
473 * Fix bug compiling with SECURE = 1.
475 ======================================================================
478 Major changes between "less" versions 346 and 352
480 * Enable UTF-8 if "UTF-8" appears in locale-related environment variables.
482 * Add --with-editor option to configure script.
484 * The -M prompt and = message now show the top and bottom line number.
486 * Fix bug in running the editor on a file whose name contains quotes, etc.
488 * Fix bug in horizontal scrolling of long lines.
490 * Fix bug in doing :d on a file which contains marks.
492 * Fix bug causing cleared lines to sometimes be filled with standout,
493 bold, underline, etc. on certain terminals.
495 * Fixes for MS-DOS (DJGPP) version.
497 ======================================================================
500 Major changes between "less" versions 340 and 346
502 * The UTF-8 character set is now supported.
504 * The default character set is now latin1 rather than ascii.
506 * New option -R (--RAW-CONTROL-CHARS) is like -r but handles
507 long (wrapped) lines correctly, as long as the input contains only
508 normal text and ANSI color escape sequences.
510 * New option -F (--quit-if-one-screen) quits if the text fits on
513 * The -w option now highlights the target line of a g or p command.
515 * A system-wide lesskey file is supported (LESSKEY_SYSTEM).
517 * New escape for prompt strings: %c is replaced by column number.
519 * New escape for prompt strings: %P is replaced by percentage into
520 file, based on line number rather than byte offset.
522 * HOME and END keys now jump to beginning of file or end of file.
524 ======================================================================
527 Major changes between "less" versions 337 and 340
529 * Command line options for less may now be given in either the old
530 single-letter form, or a new long name form (--option-name).
531 See the less man page or "less --help" for the list of long option names.
533 * Command line options for lesskey may now be given in a new long name
534 form. See the lesskey man page for the list of long option names.
536 * New command -- toggles an option using the long option name.
538 * New command __ queries an option using the long option name.
540 * The old -- command is renamed as -!.
542 * If a ^P is entered between the dash and the option letter of the -
543 command, the message describing the new setting is suppressed.
545 * Lesskey files may now contain \k escape sequences to represent the
546 "special" keys (arrows, PAGE-UP/PAGE-DOWN, HOME, END, INSERT, DELETE).
548 * New command :d removes the current file from the list of files.
550 * New option -~ (like -w before version 335)
551 suppresses tildes after end-of-file.
553 * Less is now released under the GNU General Public License.
555 ======================================================================
558 Major changes between "less" versions 335 and 337
560 * Fixed bugs in "make install".
562 ======================================================================
565 Major changes between "less" versions 332 and 335
567 * The old -w flag (suppress tildes after end-of-file) has been removed.
569 * New -w flag highlights the first new line after a forward-screen.
571 * New -W flag highlights the first new line after any forward movement.
573 * Window resize works even if LINES and/or COLUMNS environment
574 variables are incorrect.
576 * New percent escapes for prompt strings:
577 %d is replaced by the page number, and
578 %D is replaced by the number of pages in the file.
580 * Added charsets "iso8859" and "ebcdic".
582 * In Windows version, uses HOMEDRIVE and HOMEPATH if HOME is not defined.
584 * Fixed some bugs causing incorrect display on DOS/Windows.
586 ======================================================================
589 Major changes between "less" versions 330 and 332
591 * Filenames from the command line are entered into the command history,
592 so UPARROW/DOWNARROW can be used to retrieve them from the :e command.
594 * Now works correctly on Windows when using a scrolling terminal
595 window (buffer larger than display window).
597 * On Windows, now restores the console screen on exit.
598 Use -X to get the old behavior.
600 * Fixed bug on Windows when CAPS-LOCK or NUM-LOCK is pressed.
602 * Fixed bug on Windows when piping output of an interactive program.
604 * Fixed bug in tags file processing when tags file has DOS-style
605 line terminators (CR/LF).
607 * Fixed compilation problem on OS/2.
609 ======================================================================
612 Major changes between "less" versions 321 and 330
614 * Now supports filenames containing spaces (in double quotes).
615 New option -" can be used to change the quoting characters.
617 * In filename completion, a slash is appended to a directory name.
618 If the environment variable LESSSEPARATOR is set, the value of
619 that variable, rather than a slash, is appended.
621 * LeftArrow and RightArrow are same as ESC-[ and ESC-].
623 * Added commands ESC-( and ESC-), same as ESC-[ and ESC-].
625 * A "quit" command defined in a lesskey file may now have an "extra"
626 string, which is used to return an exit code from less when it quits.
628 * New environment variables LESSMETACHARS and LESSMETAESCAPE provide
629 more control over how less interfaces to the shell.
631 * Ported to Microsoft Visual C compiler for Windows.
633 * Ported to DJGPP compiler for MS-DOS.
637 ======================================================================
640 Major changes between "less" versions 291 and 321
642 * Command line at bottom of screen now scrolls, so it can be longer
643 than the screen width.
645 * New commands ESC-] and ESC-[ scroll the display horizontally.
647 * New command ESC-SPACE scrolls forward a full screen, even if it
650 * Alternate modifiers for search commands: ^N is same as !,
651 ^F is same as @, and ^E is same as *.
653 * New modifier for search commands: ^K means highlight the matches
654 currently on-screen, but don't move to the first match.
656 * New modifier for search commands: ^R means don't use regular
657 expressions in the search.
659 * Environment variable LESSKEY gives name of default lesskey file.
661 * Environment variable LESSSECURE will force less to run in
664 * Command line argument "--" signals that the rest of the arguments
665 are files (not option flags).
667 * Help file (less.hlp) is no longer installed. Help text is now
668 embedded in the less executable itself.
670 * Added -Ph to change the prompt for the help text.
671 Added -Ps to change the default short prompt (same as plain -P).
673 * Ported to the Borland C compiler for MS-DOS.
675 * Ported to Windows 95 & Windows NT.
679 * Ported to GNU Hurd.
681 ======================================================================
684 Major changes between "less" versions 290 and 291
686 * Less environment variables can be specified in lesskey files.
688 * Fixed MS-DOS build.
690 ======================================================================
693 Major changes between "less" versions 278 and 290
695 * Accepts GNU-style options "--help" and "--version".
697 * OS/2 version looks for less.ini in $HOME before $INIT and $PATH.
701 ======================================================================
704 Major changes between "less" versions 252 and 278
706 * A LESSOPEN preprocessor may now pipe the converted file data to less,
707 rather than writing it to a temporary file.
709 * Search pattern highlighting has been fixed. It now highlights
710 reliably, even if a string is split across two screen lines,
713 * The -F flag (which suppress search highlighting) has been changed
714 to -G. A new flag, -g, changes search highlighting to highlight
715 only the string found by the last search command, instead of all
716 strings which match the last search command.
718 * New flag -I acts like -i, but ignores case even if the search
719 pattern contains uppercase letters.
721 * Less now checks for the environment variable VISUAL before EDITOR.
725 ======================================================================
728 Major changes between "less" versions 237 and 252
730 * Changes in line-editing keys:
731 The literal key is now ^V or ^A rather than \ (backslash).
732 Filename completion commands (TAB and ^L) are disabled
733 when typing a search pattern.
735 * Line-editing command keys can be redefined using lesskey.
737 * Lesskey with no input file defaults to $HOME/.lesskey
738 rather than standard input.
740 * New option -V displays version number of less.
742 * New option -V displays version number of lesskey.
744 * Help file less.hlp is now installed by default in /usr/local/share
745 rather than /usr/local/lib.
748 ======================================================================
751 Major changes between "less" versions 170 and 237
753 * By popular demand, text which matches the current search pattern
754 is highlighted. New -F flag disables this feature.
756 * Henry Spencer's regexp.c is now included, for systems which do not
757 have a regular expression library.
758 regexp.c is Copyright (c) 1986 by University of Toronto.
760 * New line-editing keys, including command history (arrow keys) and
761 filename completion (TAB).
763 * Input preprocessor allows modification of input files (e.g. uncompress)
764 via LESSOPEN/LESSCLOSE environment variables.
766 * New -X flag disables sending termcap "ti" and "te" (initialize and
767 deinitialize) strings to the terminal.
769 * Changing -i from within less now correctly affects a subsequent
772 * Searching for underlined or overstruck text now works when the -u
773 flag is in effect, rather than the -i flag.
775 * Use setlocale (LANG and LC_CTYPE environment variables) to determine
776 the character set if LESSCHARSET/LESSCHARDEF are not set.
778 * The default format for displaying binary characters is now standout
779 (reverse video) rather than blinking. This can still be changed by
780 setting the LESSBINFMT environment variable.
782 * Use autoconf installation technology.
786 ********************************
787 Things that may surprise you
788 ********************************
790 * When you enter text at the bottom of the screen (search string,
791 filename, etc.), some keys act different than previously.
792 Specifically, \ (backslash), ESC, TAB, BACKTAB, and control-L
793 now have line editing functions.
795 * Some previous unofficial versions of less were able to display
796 compressed files. The new LESSOPEN/LESSCLOSE feature now provides
797 this functionality in a different way.
799 * Some previous unofficial versions of less provided a -Z flag to
800 set the number of lines of text to retain between full screen scrolls.
801 The -z-n flag (that is, -z with a negative number) provides this
805 ======================================================================
808 Major changes between "less" versions 123 and 170
810 * New option -j allows target lines to be positioned anywhere on screen.
812 * New option -S truncates displayed line at the screen width,
813 rather than wrapping onto the next line.
815 * New option -y limits amount of forward scroll.
817 * New option -T specifies a "tags" file.
819 * Non-printable, non-control characters are displayed in octal.
820 Such characters, as well as control characters, are displayed
823 * New command -+ sets an option to its default.
824 * New command -- sets an option to the opposite of its default.
826 * Lesskey file may have a string appended to a key's action,
827 which acts as though typed in after the command.
829 * New commands ESC-^F and ESC-^B match arbitrary types of brackets.
831 * New command F monitors a growing file (like "tail -f").
833 * New command | pipes a section of the input file into a shell command.
835 * New command :x directly jumps to a file in the command line list.
837 * Search commands have been enhanced and reorganized:
838 n Repeat search, same direction.
839 N Repeat search, opposite direction.
840 ESC-/ Search forward thru file boundaries
841 ESC-? Search backward thru file boundaries
842 ESC-n Repeat search thru file boundaries, same direction.
843 ESC-N Repeat search thru file boundaries, opposite direction.
844 Special character * causes search to search thru file boundaries.
845 Special character @ causes search to begin at start/end of file list.
847 * Examining a new file adds it to the command line list.
848 A list of files, or an expression which matches more than one file,
849 may be examined; all of them are added to the command line list.
851 * Environment variables LESSCHARSET and LESSCHARDEF can define
852 a non-ASCII character set.
854 * Partial support for MSDOS, including options -R for repainting screen
855 on quit, -v/-V to select video mode, and -W to change window size.
858 ======================================================================
861 Major changes between "less" versions 97 and 123
863 * New option (-N) causes line numbers to be displayed in the
864 text of the file (like vi "set nu").
866 * New option (-?) prints help message immediately.
868 * New option (-r) displays "raw" control characters, without
869 mapping them to ^X notation.
871 * New option (-f) forces less to open non-regular files
874 * New option (-k) can be used to specify lesskey files by name.
876 * New option (-y) can be used to set a forward scroll limit
877 (like -h sets a backward scroll limit).
879 * File marks (set by the m command) are now preserved when a new
880 file is edited. The ' command can thus be used to switch files.
882 * New command ESC-/ searches all files (on the command line)
885 * New command ESC-n repeats previous search, spanning files.
887 * The N command has been changed to repeat the previous search
888 in the reverse direction. The old N command is still available
891 * New command ESC-N repeats previous search in the reverse
892 direction and spanning files.
894 * 8 bit characters are now supported. A new option (-g) can be
895 used to strip off the eighth bit (the previous behavior).
897 * Options which take a following string (like -t) may now
898 optionally have a space between the option letter and the string.
900 * Six new commands { } ( ) [ and ] can be used to match
901 brackets of specific types, similar to vi % command.
903 * New commands z and w move forward/backward one window and
904 simultaneously set the window size.
906 * Prompt string expansion now has %L for line number of the last
907 line in the file, and %E for the name of the editor.
908 Also, % escapes which refer to a line (b=bottom, t=top, etc.)
909 can use j for the jump target line.
911 * New environment variable LESSEDIT can be used to tailor the
912 command string passed to the editor by the v command.
914 * Examining a file which was previously examined will return
915 to the same position in the file.
917 * A "%" is expanded to the current filename and a "#" to the
918 previous filename, in both shell commands and the E command.
919 (Previously % worked only in shell commands and # worked
920 only in the E command.)
922 * New command ":ta" is equivalent to "-t".
924 * New command "s" is equivalent to "-l".
926 * The - command may be followed by "+X" to revert to the default
927 for option X, or "-X" to get the opposite of the default.
929 * Lesskey files may now include characters after the action as
930 extra input to be parsed after the action; for example:
931 "toggle-option X" to toggle a specific option X.