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Member "less-562/version.c" (19 May 2020, 47269 Bytes) of package /linux/misc/less-562.tar.gz:


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    1 /*
    2  * Copyright (C) 1984-2020  Mark Nudelman
    3  *
    4  * You may distribute under the terms of either the GNU General Public
    5  * License or the Less License, as specified in the README file.
    6  *
    7  * For more information, see the README file.
    8  */
    9 
   10 
   11 /*
   12 ----------------------- CHANGE HISTORY --------------------------
   13 
   14        1/29/84  Allowed use on standard input
   15        2/1/84   Added E, N, P commands
   16        4/17/84  Added '=' command, 'stop' signal handling
   17        4/20/84  Added line folding
   18 v2     4/27/84  Fixed '=' command to use BOTTOM_PLUS_ONE,
   19                 instead of TOP, added 'p' & 'v' commands
   20 v3     5/3/84   Added -m and -t options, '-' command
   21 v4     5/3/84   Added LESS environment variable
   22 v5     5/3/84   New comments, fixed '-' command slightly
   23 v6     5/15/84  Added -Q, visual bell
   24 v7     5/24/84  Fixed jump_back(n) bug: n should count real
   25                 lines, not folded lines.  Also allow number on G command.
   26 v8     5/30/84  Re-do -q and -Q commands
   27 v9     9/25/84  Added "+<cmd>" argument
   28 v10    10/10/84 Fixed bug in -b<n> argument processing
   29 v11    10/18/84 Made error() ring bell if \n not entered.
   30 -----------------------------------------------------------------
   31 v12    2/13/85  Reorganized signal handling and made portable to 4.2bsd.
   32 v13    2/16/85  Reword error message for '-' command.
   33 v14    2/22/85  Added -bf and -bp variants of -b.
   34 v15    2/25/85  Miscellaneous changes.
   35 v16    3/13/85  Added -u flag for backspace processing.
   36 v17    4/13/85  Added j and k commands, changed -t default.
   37 v18    4/20/85  Rewrote signal handling code.
   38 v19    5/2/85   Got rid of "verbose" eq_message().
   39                 Made search() scroll in some cases.
   40 v20    5/21/85  Fixed screen.c ioctls for System V.
   41 v21    5/23/85  Fixed some first_cmd bugs.
   42 v22    5/24/85  Added support for no RECOMP nor REGCMP.
   43 v23    5/25/85  Miscellanous changes and prettying up.
   44                 Posted to USENET.
   45 -----------------------------------------------------------------
   46 v24    6/3/85   Added ti,te terminal init & de-init.       
   47                 (Thanks to Mike Kersenbrock)
   48 v25    6/8/85   Added -U flag, standout mode underlining.
   49 v26    6/9/85   Added -M flag.
   50                 Use underline termcap (us) if it exists.
   51 v27    6/15/85  Renamed some variables to make unique in
   52                 6 chars.  Minor fix to -m.
   53 v28    6/28/85  Fixed right margin bug.
   54 v29    6/28/85  Incorporated M.Rose's changes to signal.c
   55 v30    6/29/85  Fixed stupid bug in argument processing.
   56 v31    7/15/85  Added -p flag, changed repaint algorithm.  
   57                 Added kludge for magic cookie terminals.
   58 v32    7/16/85  Added cat_file if output not a tty.
   59 v33    7/23/85  Added -e flag and EDITOR.
   60 v34    7/26/85  Added -s flag.
   61 v35    7/27/85  Rewrote option handling; added option.c.
   62 v36    7/29/85  Fixed -e flag to work if not last file.
   63 v37    8/10/85  Added -x flag.
   64 v38    8/19/85  Changed prompting; created prompt.c.
   65 v39    8/24/85  (Not -p) does not initially clear screen.
   66 v40    8/26/85  Added "skipping" indicator in forw().
   67                 Posted to USENET.
   68 -----------------------------------------------------------------
   69 v41    9/17/85  ONLY_RETURN, control char commands,
   70                 faster search, other minor fixes.
   71 v42    9/25/85  Added ++ command line syntax;
   72                 ch_fsize for pipes.
   73 v43    10/15/85 Added -h flag, changed prim.c algorithms.
   74 v44    10/16/85 Made END print in all cases of eof;
   75                 ignore SIGTTOU after receiv ing SIGTSTP.
   76 v45    10/16/85 Never print backspaces unless -u.
   77 v46    10/24/85 Backwards scroll in jump_loc.
   78 v47    10/30/85 Fixed bug in edit(): *first_cmd==0
   79 v48    11/16/85 Use TIOCSETN instead of TIOCSETP.
   80                 Added marks (m and ' commands).
   81                 Posted to USENET.
   82 -----------------------------------------------------------------
   83 v49    1/9/86   Fixed bug: signal didn't clear mcc.
   84 v50    1/15/86  Added ' (quote) to gomark.
   85 v51    1/16/86  Added + cmd, fixed problem if first_cmd
   86                 fails, made g cmd sort of "work" on pipes
   87                 ev en if bof is no longer buffered.
   88 v52    1/17/86  Made short files work better.
   89 v53    1/20/86  Added -P option.
   90 v54    1/20/86  Changed help to use HELPFILE.
   91 v55    1/23/86  Messages work better if not tty output.
   92 v56    1/24/86  Added -l option.
   93 v57    1/31/86  Fixed -l to get confirmation before
   94                 ov erwriting an existing file.
   95 v58    8/28/86  Added filename globbing.
   96 v59    9/15/86  Fixed some bugs with very long filenames.
   97 v60    9/26/86  Incorporated changes from Leith (Casey)
   98                 Leedom for boldface and -z option.
   99 v61    9/26/86  Got rid of annoying repaints after ! cmd.
  100                 Posted to USENET.
  101 -----------------------------------------------------------------
  102 v62    12/23/86 Added is_directory(); change -z default to
  103                 -1 instead of 24; cat-and-exit if -e and
  104                 file is less than a screenful.
  105 v63    1/8/87   Fixed bug in cat-and-exit if > 1 file.
  106 v64    1/12/87  Changed puts/putstr, putc/putchr,
  107                 getc/getchr to av oid name conflict with
  108                 stdio functions.
  109 v65    1/26/87  Allowed '-' command to change NUMBER
  110                 v alued options (thanks to Gary Puckering)
  111 v66    2/13/87  Fixed bug: prepaint should use force=1.
  112 v67    2/24/87  Added !! and % expansion to ! command.
  113 v68    2/25/87  Added SIGWINCH and TIOCGWINSZ support;
  114                 changed is_directory to bad_file.
  115                 (thanks to J. Robert Ward)
  116 v69    2/25/87  Added SIGWIND and WIOCGETD (for Unix PC).
  117 v70    3/13/87  Changed help cmd from 'h' to 'H'; better
  118                 error msgs in bad_file, errno_message.
  119 v71    5/11/87  Changed -p to -c, made triple -c/-C
  120                 for clear-eol like more's -c.
  121 v72    6/26/87  Added -E, -L, use $SHELL in lsystem().
  122                 (thanks to Stev e Spearman)
  123 v73    6/26/87  Allow Examine "#" for previous file.
  124                 Posted to USENET 8/25/87.
  125 -----------------------------------------------------------------
  126 v74    9/18/87  Fix conflict in EOF symbol with stdio.h,
  127                 Make os.c more portable to BSD.
  128 v75    9/23/87  Fix problems in get_term (thanks to 
  129                 Paul Eggert); new backwards scrolling in
  130                 jump_loc (thanks to Marion Hakanson).
  131 v76    9/23/87  Added -i flag; allow single "!" to
  132                 inv oke a shell (thanks to Franco Barber).
  133 v77    9/24/87  Added -n flag and line number support.
  134 v78    9/25/87  Fixed problem with prompts longer than
  135                 the screen width.
  136 v79    9/29/87  Added the _ command.
  137 v80    10/6/87  Allow signal to break out of linenum scan.
  138 v81    10/6/87  Allow -b to be changed from within less.
  139 v82    10/7/87  Add cmd_decode to use a table for key
  140                 binding (thanks to Dav id Nason).
  141 v83    10/9/87  Allow .less file for user-defined keys.
  142 v84    10/11/87 Fix -e/-E problems (thanks to Felix Lee).
  143 v85    10/15/87 Search now keeps track of line numbers.
  144 v86    10/20/87 Added -B option and autobuf; fixed
  145                 "pipe error" bug.
  146 v87    3/1/88   Fix bug re BSD signals while reading file.
  147 v88    3/12/88  Use new format for -P option (thanks to
  148                 der Mouse), allow "+-c" without message,
  149                 fix bug re BSD hangup.
  150 v89    3/18/88  Turn off line numbers if linenum scan
  151                 is interrupted.
  152 v90    3/30/88  Allow -P from within less.
  153 v91    3/30/88  Added tags file support (new -t option)
  154                 (thanks to Brian Campbell).
  155 v92    4/4/88   Added -+option syntax.
  156 v93    4/11/88  Add support for slow input (thanks to
  157                 Joe Orost & apologies for taking almost
  158                 3 years to get this in!)
  159 v94    4/11/88  Redo reading/signal stuff.
  160 v95    4/20/88  Repaint screen better after signal.
  161 v96    4/21/88  Add /! and ?! commands.
  162 v97    5/17/88  Allow -l/-L from within less.
  163                 Eliminate some static arrays (use calloc).
  164                 Posted to USENET.
  165 -----------------------------------------------------------------
  166 v98    10/14/88 Fix incorrect calloc call; uninitialized
  167                 var in exec_mca; core dump on unknown TERM.
  168                 Make v cmd work if past last line of file.
  169                 Fix some signal bugs.
  170 v99    10/29/88 Allow space between -X and string,
  171                 when X is a string-valued option.
  172 v100   1/5/89   Fix globbing bug when $SHELL not set;
  173                 allow spaces after -t command.
  174 v101   1/6/89   Fix problem with long (truncated) lines
  175                 in tags file (thanks to Neil Dixon).
  176 v102   1/6/89   Fix bug with E# when no prev file;
  177                 allow spaces after -l command.
  178 v103   3/14/89  Add -N, -f and -? options.  Add z and w
  179                 commands.  Add %L for prompt strings.
  180 v104   3/16/89  Added EDITPROTO.
  181 v105   3/20/89  Fix bug in find_linenum which cached
  182                 incorrectly on long lines.
  183 v106   3/31/89  Added -k option and multiple lesskey      
  184                 files.
  185 v107   4/27/89  Add 8-bit char support and -g option.
  186                 Split option code into 3 files.
  187 v108   5/5/89   Allocate position table dynamically       
  188                 (thanks to Paul Eggert); change % command
  189                 from "percent" to vi-style brace finder.
  190 v109   5/10/89  Added ESC-% command, split prim.c.
  191 v110   5/24/89  Fixed bug in + option; fixed repaint bug
  192                 under Sun windows (thanks to Paul Eggert).
  193 v111   5/25/89  Generalized # and % expansion; use 
  194                 calloc for some error messages.
  195 v112   5/30/89  Get rid of ESC-%, add {}()[] commands.
  196 v113   5/31/89  Optimize lseeks (thanks to Paul Eggert).
  197 v114   7/25/89  Added ESC-/ and ESC-/! commands.
  198 v115   7/26/89  Added ESC-n command.
  199 v116   7/31/89  Added find_pos to optimize g command.
  200 v117   8/1/89   Change -f option to -r.
  201 v118   8/2/89   Save positions for all previous files,
  202                 not just the immediately previous one.
  203 v119   8/7/89   Save marks across file boundaries.
  204                 Add file handle stuff.
  205 v120   8/11/89  Add :ta command.
  206 v121   8/16/89  Add -f option.
  207 v122   8/30/89  Fix performance with many buffers.
  208 v123   8/31/89  Verbose prompts for string options.
  209                 Posted beta to USENET.
  210 -----------------------------------------------------------------
  211 v124   9/18/89  Reorganize search commands,
  212                 N = rev, ESC-n = span, add ESC-N.
  213 v125   9/18/89  Fix tab bug (thanks to Alex Liu).
  214                 Fix EOF bug when both -w and -c.
  215 v126   10/25/89 Add -j option.
  216 v127   10/27/89 Fix problems with blank lines before BOF.
  217 v128   10/27/89 Add %bj, etc. to prompt strings.
  218 v129   11/3/89  Add -+,-- commands; add set-option and
  219                 unset-option to lesskey.
  220 v130   11/6/89  Generalize A_EXTRA to string, remove
  221                 set-option, unset-option from lesskey.
  222 v131   11/7/89  Changed name of EDITPROTO to LESSEDIT.
  223 v132   11/8/89  Allow editing of command prefix.
  224 v133   11/16/89 Add -y option (thanks to Jeff Sullivan).
  225 v134   12/1/89  Glob filenames in the -l command.
  226 v135   12/5/89  Combined {}()[] commands into one, and
  227                 added ESC-^F and ESC-^B commands.
  228 v136   1/20/90  Added -S, -R flags.  Added | command.
  229                 Added warning for binary files. (thanks
  230                 to Richard Brittain and J. Sullivan).
  231 v137   1/21/90  Rewrote horrible pappend code.
  232                 Added * notation for hi-bit chars.
  233 v138   1/24/90  Fix magic cookie terminal handling.
  234                 Get rid of "cleanup" loop in ch_get.
  235 v139   1/27/90  Added MSDOS support.  (many thanks
  236                 to Richard Brittain).
  237 v140   2/7/90   Editing a new file adds it to the
  238                 command line list.
  239 v141   2/8/90   Add edit_list for editing >1 file.
  240 v142   2/10/90  Add :x command.
  241 v143   2/11/90  Add * and @ modifies to search cmds.
  242                 Change ESC-/ cmd from /@* to / *.
  243 v144   3/1/90   Messed around with ch_zero; 
  244                 no real change.
  245 v145   3/2/90   Added -R and -v/-V for MSDOS;
  246                 renamed FILENAME to avoid conflict.
  247 v146   3/5/90   Pull cmdbuf functions out of command.c
  248 v147   3/7/90   Implement ?@; fix multi-file edit bugs.
  249 v148   3/29/90  Fixed bug in :e<file> then :e#.
  250 v149   4/3/90   Change error,ierror,query to use PARG.
  251 v150   4/6/90   Add LESS_CHARSET, LESS_CHARDEF.
  252 v151   4/13/90  Remove -g option; clean up ispipe.
  253 v152   4/14/90  lsystem() closes input file, for
  254                 editors which require exclusive open.
  255 v153   4/18/90  Fix bug if SHELL unset; 
  256                 fix bug in overstrike control char.
  257 v154   4/25/90  Output to fd 2 via buffer.
  258 v155   4/30/90  Ignore -i if uppercase in pattern
  259                 (thanks to Michael Rendell.)
  260 v156   5/3/90   Remove scroll limits in forw() & back();
  261                 causes problems with -c.
  262 v157   5/4/90   Forward search starts at next real line
  263                 (not screen line) after jump target.
  264 v158   6/14/90  Added F command.
  265 v159   7/29/90  Fix bug in exiting: output not flushed.
  266 v160   7/29/90  Clear screen before initial output w/ -c.
  267 v161   7/29/90  Add -T flag.
  268 v162   8/14/90  Fix bug with +F on command line.
  269 v163   8/21/90  Added LESSBINFMT variable.
  270 v164   9/5/90   Added -p, LINES, COLUMNS and
  271                 unset mark ' == BOF, for 1003.2 D5.
  272 v165   9/6/90   At EOF with -c set, don't display empty
  273                 screen when try to page forward.
  274 v166   9/6/90   Fix G when final line in file wraps.
  275 v167   9/11/90  Translate CR/LF -> LF for 1003.2.
  276 v168   9/13/90  Return to curr file if "tag not found".
  277 v169   12/12/90 G goes to EOF even if file has grown.
  278 v170   1/17/91  Add optimization for BSD _setjmp;
  279                 fix #include ioctl.h TERMIO problem.
  280                 (thanks to Paul Eggert)
  281                 Posted to USENET.
  282 -----------------------------------------------------------------
  283 v171   3/6/91   Fix -? bug in get_filename.
  284 v172   3/15/91  Fix G bug in empty file.
  285                 Fix bug with ?\n and -i and uppercase
  286                 pattern at EOF!
  287                 (thanks to Paul Eggert)
  288 v173   3/17/91  Change N cmd to not permanently change
  289                 direction. (thanks to Brian Matthews)
  290 v174   3/18/91  Fix bug with namelogfile not getting
  291                 cleared when change files.
  292 v175   3/18/91  Fix bug with ++cmd on command line.
  293                 (thanks to Jim Meyering)
  294 v176   4/2/91   Change | to not force current screen,
  295                 include marked line, start/end from
  296                 top of screen.  Improve search speed.
  297                 (thanks to Don Mears)
  298 v177   4/2/91   Add LESSHELP variable.
  299                 Fix bug with F command with -e.
  300                 Try /dev/tty for input before using fd 2.
  301                 Patches posted to USENET  4/2/91.
  302 -----------------------------------------------------------------
  303 v178   4/8/91   Fixed bug in globbing logfile name.
  304                 (thanks to Jim Meyering)
  305 v179   4/9/91   Allow negative -z for screen-relative.
  306 v180   4/9/91   Clear to eos rather than eol if "db";
  307                 don't use "sr" if "da".
  308                 (thanks to Tor Lillqvist)
  309 v181   4/18/91  Fixed bug with "negative" chars 80 - FF.
  310                 (thanks to Benny Sander Hofmann)
  311 v182   5/16/91  Fixed bug with attribute at EOL.
  312                 (thanks to Brian Matthews)
  313 v183   6/1/91   Rewrite linstall to do smart config.
  314 v184   7/11/91  Process \b in searches based on -u
  315                 rather than -i.
  316 v185   7/11/91  -Pxxx sets short prompt; assume SIGWINCH
  317                 after a SIGSTOP. (thanks to Ken Laprade)
  318 -----------------------------------------------------------------
  319 v186   4/20/92  Port to MS-DOS (Microsoft C).
  320 v187   4/23/92  Added -D option & TAB_COMPLETE_FILENAME.
  321 v188   4/28/92  Added command line editing features.
  322 v189   12/8/92  Fix mem overrun in anscreen.c:init; 
  323                 fix edit_list to recover from bin file.
  324 v190   2/13/93  Make TAB enter one filename at a time;
  325                 create ^L with old TAB functionality.
  326 v191   3/10/93  Defer creating "flash" page for MS-DOS.
  327 v192   9/6/93   Add BACK-TAB.
  328 v193   9/17/93  Simplify binary_file handling.
  329 v194   1/4/94   Add rudiments of alt_filename handling.
  330 v195   1/11/94  Port back to Unix; support keypad.
  331 -----------------------------------------------------------------
  332 v196   6/7/94   Fix bug with bad filename; fix IFILE
  333                 type problem. (thanks to David MacKenzie)
  334 v197   6/7/94   Fix bug with .less tables inserted wrong.
  335 v198   6/23/94  Use autoconf installation technology.
  336                 (thanks to David MacKenzie)
  337 v199   6/29/94  Fix MS-DOS build (thanks to Tim Wiegman).
  338 v200   7/25/94  Clean up copyright, minor fixes.
  339         Posted to prep.ai.mit.edu
  340 -----------------------------------------------------------------
  341 v201   7/27/94  Check for no memcpy; add casts to calloc;
  342                 look for regcmp in libgen.a.
  343                 (thanks to Kaveh Ghazi).
  344 v202   7/28/94  Fix bug in edit_next/edit_prev with 
  345                 non-existent files.
  346 v203   8/2/94   Fix a variety of configuration bugs on
  347                 various systems. (thanks to Sakai
  348                 Kiyotaka, Harald Koenig, Bjorn Brox,
  349                 Teemu Rantanen, and Thorsten Lockert)
  350 v204   8/3/94   Use strerror if available.
  351                 (thanks to J.T. Conklin)
  352 v205   8/5/94   Fix bug in finding "me" termcap entry.
  353                 (thanks to Andreas Stolcke)
  354 8/10/94         v205+: Change BUFSIZ to LBUFSIZE to avoid name
  355                 conflict with stdio.h.
  356                 Posted to prep.ai.mit.edu
  357 -----------------------------------------------------------------
  358 v206   8/10/94  Use initial_scrpos for -t to avoid
  359                 displaying first page before init().
  360                 (thanks to Dominique Petitpierre)
  361 v207   8/12/94  Fix bug if stdout is not tty.
  362 v208   8/16/94  Fix bug in close_altfile if goto err1
  363                 in edit_ifile. (Thanks to M.J. Hewitt)
  364 v209   8/16/94  Change scroll to wscroll to avoid 
  365                 conflict with library function.
  366 v210   8/16/94  Fix bug with bold on 8 bit chars.
  367                 (thanks to Vitor Duarte)
  368 v211   8/16/94  Don't quit on EOI in jump_loc / forw.
  369 v212   8/18/94  Use time_t if available.
  370 v213   8/20/94  Allow ospeed to be defined in termcap.h.
  371 v214   8/20/94  Added HILITE_SEARCH, -F, ESC-u cmd.
  372                 (thanks to Paul Lew and Bob Byrnes)
  373 v215   8/23/94  Fix -i toggle behavior.
  374 v216   8/23/94  Process BS in all searches, not only -u.
  375 v217   8/24/94  Added -X flag.
  376 v218   8/24/94  Reimplement undo_search.
  377 v219   8/24/94  Find tags marked with line number
  378                 instead of pattern.
  379 v220   8/24/94  Stay at same position after SIG_WINCH.
  380 v221   8/24/94  Fix bug in file percentage in big file.
  381 v222   8/25/94  Do better if can't reopen current file.
  382 v223   8/27/94  Support setlocale.
  383                 (thanks to Robert Joop)
  384 v224   8/29/94  Revert v216: process BS in search
  385                 only if -u.
  386 v225   9/6/94   Rewrite undo_search again: toggle.
  387 v226   9/15/94  Configuration fixes. 
  388                 (thanks to David MacKenzie)
  389 v227   9/19/94  Fixed strerror config problem.
  390                 Posted to prep.ai.mit.edu
  391 -----------------------------------------------------------------
  392 v228   9/21/94  Fix bug in signals: repeated calls to
  393                 get_editkeys overflowed st_edittable.
  394 v229   9/21/94  Fix "Nothing to search" error if -a
  395                 and SRCH_PAST_EOF.
  396 v230   9/21/94  Don't print extra error msg in search
  397                 after regerror().
  398 v231   9/22/94  Fix hilite bug if search matches 0 chars.
  399                 (thanks to John Polstra)
  400 v232   9/23/94  Deal with weird systems that have 
  401                 termios.h but not tcgetattr().
  402                 Posted to prep.ai.mit.edu
  403 -----------------------------------------------------------------
  404 v233   9/26/94  Use get_term() instead of pos_init() in
  405                 psignals to re-get lower_left termcap.
  406                 (Thanks to John Malecki)
  407 v234   9/26/94  Make MIDDLE closer to middle of screen.
  408 v235   9/27/94  Use local strchr if system doesn't have.
  409 v236   9/28/94  Don't use libucb; use libterm if 
  410                 libtermcap & libcurses doesn't work.
  411                 (Fix for Solaris; thanks to Frank Kaefer)
  412 v237   9/30/94  Use system isupper() etc if provided.
  413                 Posted to prep.ai.mit.edu
  414 -----------------------------------------------------------------
  415 v238   10/6/94  Make binary non-blinking if LESSBINFMT
  416                 is set to a string without a *.
  417 v239   10/7/94  Don't let delimit_word run back past
  418                 beginning of cmdbuf.
  419 v240   10/10/94 Don't write into termcap buffer.
  420                 (Thanks to Benoit Speckel)
  421 v241   10/13/94 New lesskey file format.
  422                 Don't expand filenames in search command.
  423 v242   10/14/94 Allow lesskey specification of "literal".
  424 v243   10/14/94 Add #stop command to lesskey.
  425 v244   10/16/94 Add -f flag to lesskey.
  426 v245   10/25/94 Allow TAB_COMPLETE_FILENAME to be undefd.
  427 v246   10/27/94 Move help file to /usr/local/share.
  428 v247   10/27/94 Add -V option.
  429 v248   11/5/94  Add -V option to lesskey.
  430 v249   11/5/94  Remove -f flag from lesskey; default
  431                 input file is ~/.lesskey.in, not stdin.
  432 v250   11/7/94  Lesskey input file "-" means stdin.
  433 v251   11/9/94  Convert cfgetospeed result to ospeed.
  434                 (Thanks to Andrew Chernov)
  435 v252   11/16/94 Change default lesskey input file from 
  436                 .lesskey.in to .lesskey.
  437                 Posted to prep.ai.mit.edu
  438 -----------------------------------------------------------------
  439 v253   11/21/94 Fix bug when tags file has a backslash.
  440 v254   12/6/94  Fix -k option.
  441 v255   12/8/94  Add #define EXAMINE to disable :e etc.
  442 v256   12/10/94 Change highlighting: only highlite search
  443                 results (but now it is reliable).
  444 v257   12/10/94 Add goto_line and repaint_highlight
  445                 to optimize highlight repaints.
  446 v258   12/12/94 Fixup in hilite_line if BS_SPECIAL.
  447 v259   12/12/94 Convert to autoconf 2.0.
  448 v260   12/13/94 Add SECURE define.
  449 v261   12/14/94 Use system WERASE char as EC_W_BACKSPACE.
  450 v262   12/16/94 Add -g/-G flag and screen_hilite.
  451 v263   12/20/94 Reimplement/optimize -G flag behavior.
  452 v264   12/23/94 Allow EXTRA string after line-edit cmd
  453                 in lesskey file.
  454 v265   12/24/94 Add LESSOPEN=|cmd syntax.
  455 v266   12/26/94 Add -I flag.
  456 v267   12/28/94 Formalize the four-byte header emitted
  457                 by a LESSOPEN pipe.
  458 v268   12/28/94 Get rid of four-byte header.
  459 v269   1/2/95   Close alt file before open new one.
  460                 Avoids multiple popen().
  461 v270   1/3/95   Use VISUAL; use S_ISDIR/S_ISREG; fix
  462                 config problem with Solaris POSIX regcomp.
  463 v271   1/4/95   Don't quit on read error.
  464 v272   1/5/95   Get rid of -L.
  465 v273   1/6/95   Fix ch_ungetchar bug; don't call
  466                 LESSOPEN on a pipe.
  467 v274   1/6/95   Ported to OS/2 (thanks to Kai Uwe Rommel)
  468 v275   1/18/95  Fix bug if toggle -G at EOF.
  469 v276   1/30/95  Fix OS/2 version.
  470 v277   1/31/95  Add "next" charset; don't display ^X 
  471                 for X > 128.
  472 v278   2/14/95  Change default for -G.
  473                 Posted to prep.ai.mit.edu
  474 -----------------------------------------------------------------
  475 v279   2/22/95  Add GNU options --help, --version.
  476                 Minor config fixes.
  477 v280   2/24/95  Clean up calls to glob(); don't set #
  478                 if we can't open the new file.
  479 v281   2/24/95  Repeat search should turn on hilites.
  480 v282   3/2/95   Minor fixes.
  481 v283   3/2/95   Fix homefile; make OS2 look in $HOME.
  482 v284   3/2/95   Error if "v" on LESSOPENed file;
  483                 "%" figures out file size on pipe.
  484 v285   3/7/95   Don't set # in lsystem; 
  485                 lesskey try $HOME first.
  486 v286   3/7/95   Reformat change history (too much free time?).
  487 v287   3/8/95   Fix hilite bug if overstrike multiple chars.
  488 v288   3/8/95   Allow lesskey to override get_editkey keys.
  489 v289   3/9/95   Fix adj_hilite bug when line gets processed by
  490                 hilite_line more than once.
  491 v290   3/9/95   Make configure automatically.  Fix Sequent problem
  492                 with incompatible sigsetmask().
  493                 Posted to prep.ai.mit.edu
  494 -----------------------------------------------------------------
  495 v291   3/21/95  Add #env to lesskey.  Fix MS-DOS build.
  496                 Posted to simtel.
  497 -----------------------------------------------------------------
  498 v292   4/24/95  Add MS-DOS support for Borland C.
  499                 Fix arrow keys in MS-DOS versions.
  500 v293   4/28/95  Add auto-versioning stuff to make dist.
  501 v294   5/12/95  Fix Borland build.
  502 v295   1/20/96  Fix search on squished file; add /@@.
  503 v296   1/23/96  Allow cmdbuf larger than screen width.
  504 v297   1/24/96  Don't call termcap if tgetent fails; 
  505                 add #defines for buffers.
  506 v298   1/24/96  Change @@ to ^K.  
  507                 Add alternate search modifiers ^N, ^F, ^E.
  508 v299   1/25/96  Fix percent overflow in jump_percent (thanks to Brent Wiese);
  509                 don't send "ti" after shell command till RETURN pressed.
  510 v300   1/25/96  Change -U to print tabs as ^I.
  511 v301   1/30/96  Make hilites work in cmd F output.
  512 v302   1/31/96  Fix cmd F to notice window-change signals.
  513 v303   1/31/96  Add ESC-SPACE command.
  514 v304   2/1/96   Add ^R search modifier; add LESSSECURE.
  515 v305   2/2/96   Workaround Linux /proc kernel bug; add LESSKEY.
  516 v306   3/16/96  Minor fixes.
  517 v307   3/25/96  Allow cmd line arg "--"; fix DOS & OS/2 defines.h.
  518 v308   4/4/96   Port to OS-9 (thanks to Boisy Pitre); fix -d.
  519 v309   4/9/96   Fix OS-9 version; fix tags bug with "$".
  520 v310   4/10/96  Get rid of HELPFILE.
  521 v311   4/22/96  Add Windows32 support; merge doscreen.c into screen.c.
  522 v312   4/24/96  Don't quit after "cannot reopen" error.
  523 v313   4/25/96  Added horizontal scrolling.
  524 v314   4/26/96  Modified -e to quit on reaching end of a squished file.
  525 v315   4/26/96  Fix "!;TAB" bug.
  526 v316   5/2/96   Make "|a" when (a < curr screen) go to end of curr screen.
  527 v317   5/14/96  Various fixes for the MS-DOS and OS/2 builds.
  528                 Added ## and %% handling for filenames
  529 v318   5/29/96  Port to OS-9 Microware compiler; minor fixes 
  530                 (thanks to Martin Gregorie).
  531 v319   7/8/96   Fix Windows port (thanks to Jeff Paquette).
  532 v320   7/11/96  Final fixes for Windows port.
  533 v321   7/18/96  Minor fixes.
  534                 Posted to Web page.
  535 -----------------------------------------------------------------
  536 v322   8/13/96  Fix bug in shell escape from help file; add support for 
  537                 Microsoft Visual C under Windows; numerous small fixes.
  538 v323   8/19/96  Fixes for Windows version (thanks to Simon Munton);
  539                 fix for Linux library weirdness (thanks to Jim Diamond);
  540                 port to DJGPP (thanks to Eli Zaretskii).
  541 v324   8/21/96  Add support for spaces in filenames (thanks to Simon Munton).
  542 v325   8/21/96  Add lessecho, for spaces in filenames under Unix.
  543 v326   8/27/96  Fix DJGPP version.
  544 v327   9/1/96   Reorganize lglob, make spaces in filenames work better in Unix.
  545 v328   10/7/96  Append / to directory name in filename completion.
  546                 Fix MS-DOS and OS-9 versions.
  547 v329   10/11/96 Fix more MS-DOS bugs; add LESSSEPARATOR; add -" option.
  548                 Add LESSMETACHARS, LESSMETAESCAPE.
  549 v330   10/21/96 Minor fixes.
  550                 Posted to Web page.
  551 -----------------------------------------------------------------
  552 v331   4/22/97  Various Windows fixes (thanks to Gurusamy Sarathy).
  553 v332   4/22/97  Enter filenames from cmd line into edit history.
  554                 Posted to Web page.
  555 -----------------------------------------------------------------
  556 v333    3/4/99  Changed -w to highlite new line after forward movement.
  557 v334    3/9/99  Avoid overflowing prompt buffer; add %d and %D.
  558 v335   3/20/99  Add EBCDIC support (thanks to Thomas Dorner).
  559                 Use HOMEDRIVE/HOMEPATH on Windows (thanks to Preston Bannister).
  560                 Posted to Web page.
  561 -----------------------------------------------------------------
  562 v336    4/8/99  Fix installation bugs.
  563 v337    4/9/99  Fix another installation bug.
  564                 Posted to Web page.
  565 -----------------------------------------------------------------
  566 v338   4/13/99  Add support for long option names.
  567 v339   4/18/99  Add \k, long option names to lesskey.  Add -^P.  Add :d.
  568 v340   4/21/99  Add regexec2.  Fix Windows build.
  569                 Posted to Web page.
  570 -----------------------------------------------------------------
  571 v341    5/6/99  Add -F option; %c & ?c prompt escapes.
  572                 (Thanks to Michele Maltoni)
  573 v342   7/22/99  Add system-wide lesskey file; allow GPL or Less License.
  574 v343   9/23/99  Support UTF-8 (Thanks to Robert Brady).
  575                 Add %P and ?P in prompts.
  576 v344  10/27/99  -w highlights target line of g and p commands.
  577 v345  10/29/99  Make -R pass thru ESC but not other control chars.
  578                 Posted to Web page.
  579 -----------------------------------------------------------------
  580 v346   11/4/99  Fix bugs in long option processing; R cmd should clear hilites.
  581                 Posted to Web page.
  582 -----------------------------------------------------------------
  583 v347  12/13/99  Fixes for DJGPP version (thanks to Eli Zaretskii).
  584 v348  12/28/99  Fix deleting file with marks (thanks to Dimitar Jekov).
  585                 Fix color problem in DJGPP version (thanks to Eli Zaretskii).
  586 v349   1/24/00  Fix minor DJGPP bugs; check environment vars for UTF-8;
  587                 add --with-editor (thanks to Eli, Markus Kuhn, Thomas Schoepf).
  588 v350   3/1/00   Fix clear-while-standout bug.
  589 v351   3/5/00   Change -M and = prompts to show top & bottom line number.
  590                 Posted to Web page.
  591 -----------------------------------------------------------------
  592 v352   3/8/00   Fix scan_option NULL dereference.
  593 -----------------------------------------------------------------
  594 v353   3/20/00  Fix SECURE compile bug, allow space after numeric option.
  595 v354   3/23/00  Add support for PCRE; add --with-regex configure option.
  596 -----------------------------------------------------------------
  597 v355   6/28/00  Add -# option (thanks to Andy Levinson).
  598 v356   7/5/00   Add -J option.
  599 v357   7/6/00   Support sigprocmask.
  600 -----------------------------------------------------------------
  601 v358   7/8/00   Fix problems with #stop in lesskey file.
  602                 Posted to Web page.
  603 -----------------------------------------------------------------
  604 v359  9/10/00   Fixes for Win32 display problems (thanks to Maurizio Vairani).
  605 v360  1/17/01   Move sysless to etc.
  606 v361  12/4/01   Add IBM-1047 charset & EBCDIC fixes (thanks to Thomas Dorner).
  607                 Fix 32 bit dependencies (thanks to Paul Eggert).
  608                 Fix UTF-8 overstriking (thanks to Robert Brady).
  609 v362  12/4/01   Make status column show search targets.
  610 v363  12/6/01   Add --no-keypad option.
  611                 Add variable width tabstops (thanks to Peter Samuelson).
  612 v364 12/10/01   Better handling of very long lines in input;
  613                 Fix horizontal shifting of colored text.
  614 v365 12/11/01   Fix overstriking of tabs;
  615                 Add support for global(1) and multiple tag matches
  616                 (thanks to Shigio Yamaguchi and Tim Vanderhoek).
  617 v366 12/11/01   Fixes for OS/2 (thanks to Kyosuke Tokoro).
  618 v367 12/13/01   Allow -D and -x options to terminate without dollar sign;
  619                 Right/left arrow when entering N are shift cmds, not line edit.
  620 v368 12/18/01   Update lesskey commands.
  621 v370 12/23/01   Fix tags error messages.
  622                 Posted to Web page.
  623 -----------------------------------------------------------------
  624 v371 12/26/01   Fix new_file bug; use popen in Windows version;
  625                 fix some compiler warnings.
  626 v372 12/29/01   Make -b be in units of 1K.
  627 v373  1/14/02   Improve handling of filenames containing shell metachars.
  628 v374   2/7/02   Fix memory leak; fix bug in -x argument parsing.
  629 v375   4/7/02   Fix searching for SGR sequences; fix SECURE build;
  630                 add SGR support to DJGPP version (thanks to Eli Zaretskii).
  631 v376  6/10/02   Fix bug in overstriking mulitbyte UTF-8 characters
  632                 (thanks to Jungshik Shin).
  633                 Posted to Web page.
  634 -----------------------------------------------------------------
  635 v377  9/10/02   Fix bug in Windows version when file contains CR;
  636                 fix bug in search highlights with -R;
  637                 make initial buffer limit really be 64K not unlimited.
  638 v378  9/30/02   Misc bug fixes and compiler warning cleanup.
  639                 Posted to Web page.
  640 -----------------------------------------------------------------
  641 v379 11/23/02   Add -L option; fix bug with ctrl-K in lesskey files;
  642                 improve UTF-8 overstriking and underscore overstriking;
  643                 fix minor man page problems; change to autoconf 2.54.
  644 v380 11/24/02   Make LINENUM same as POSITION.
  645 v381 11/28/02   Make -N use 7 columns for line number if possible.
  646 -----------------------------------------------------------------
  647 v382   2/3/04   Remove copyrighted code.
  648 -----------------------------------------------------------------
  649 v383  2/16/04   Add history file; add -K option; improve UTF-8 handling;
  650                 fix some signed char bugs (thanks to Christian Biere);
  651                 fix some upper/lower case bugs (thanks to Bjoern Jacke);
  652                 add erase2 char (thanks to David Lawrence);
  653                 add windows charset (thanks to Dimitar Zhekov).
  654 v384  2/20/04   Improvements in UTF-8 handling.
  655 v385  2/23/04   Fix UTF-8 output bug.
  656 -----------------------------------------------------------------
  657 v386  9/13/05   Improvements to UTF-8 shift & color (thanks to Charles Levert);
  658                 protect against invalid LESSOPEN and LESSCLOSE values.
  659 v387  9/14/05   Update Charles Levert's UTF-8 patch.
  660 v388  9/14/05   Change history behavior; change most sprintf calls to snprintf.
  661 v389  9/14/05   Fix copy & paste with long lines; improve performance of 
  662                 expand_linebuf; fix crash in init_mlist; 
  663 v390  9/15/05   Show search matches in status column even if -G is set.
  664 -----------------------------------------------------------------
  665 v391  9/17/05   Fix bugs.
  666 v392  10/14/05  Fix line wrapping bug.
  667 v393  10/19/05  Allow multiple attributes per char; fix bold+underline bug
  668                 (thanks again to Charles Levert).
  669 v394  11/8/05   Fix prompt bug; fix compile problem in Windows build.
  670 -----------------------------------------------------------------
  671 v395  1/12/07   Update Unicode tables (thanks to Charles Levert);
  672                 don't chmod if LESSHISTFILE = /dev/null;
  673                 make -f work for directories; support DESTDIR in Makefile;
  674                 fix sigset_t detection in configure; 
  675                 make "t" cmd traverse tags in correct order
  676 v396  1/13/07   Add compatibility with POSIX more.
  677 v397  3/21/07   Allow decimal point in number for % command;
  678                 Allow decimal point in number for -j option;
  679                 Allow n command to fetch last search pattern from history
  680                 (thanks to arno).
  681 v398  3/22/07   Don't rewrite history file if not necessary;
  682                 fix bug when filenames contain "$".
  683 v399  3/22/07   Don't move to bottom of screen at startup;
  684                 don't output extraneous newlines.
  685 v400  3/23/07   Allow search to find pattern after null byte (PCRE and no-regex)
  686                 (thanks to Michael Constant).
  687 -----------------------------------------------------------------
  688 v401  3/24/07   Minor documentation fixes.
  689 v402  3/30/07   Fix autoconf bug when memcpy etc are inline;
  690                 fix bug in terminating number following -j option.
  691 v403  5/25/07   Fix Windows build.
  692 v404  6/5/07    Fix display bug with F command and long lines.
  693 v405  6/17/07   Fix display bug when using -w option.
  694 v406  6/17/07   Fix secure build.
  695 v407  8/16/07   Fix bugs; support CSI chars.
  696 v408  10/1/07   Fix bug in -i with non-ASCII chars.
  697 v409  10/12/07  Fix crash when viewing text with invalid UTF-8 sequences.
  698 v411  11/6/07   Fix case-insensitive searching with non-ASCII text.
  699 v412  11/6/07   Use symbolic SEEK constants.
  700 v413  11/6/07   Fix search highlight bug with non-ASCII text.
  701 v414  11/6/07   Fix display bug with no-wrap terminals.
  702 v415  11/14/07  Add --follow-name option.
  703 v416  11/22/07  Fix crash when searching text with invalid UTF-8 sequences.
  704 v417  12/31/07  Don't support single-char CSI in UTF-8 mode;
  705                 fix bug with -R and invalid CSI sequences;
  706                 fix bug searching text with SGR sequences with -r;
  707                 emulate SGR sequences in WIN32 build.
  708 v418  12/31/07  Clean up.
  709 -----------------------------------------------------------------
  710 v419  1/16/08   Make CSI char 0x9B work in UTF-8 mode (thanks to Colin Watson).
  711 v420  2/24/08   Add & command; fix -F option; fix '' after G.
  712 v421  2/24/08   Ignore filtered lines when searching.
  713 v422  3/2/08    Output CR at startup.
  714 v423  5/27/08   Clean up.
  715 v424  6/16/08   Fix compile bug with pcre; don't filter help file.
  716 v425  7/14/08   Fix non-ANSI code in list handling in ch.c.
  717 v426  10/27/08  Fix ignaw terminal handling (thanks to Per Hedeland);
  718                 fix binary file detection in UTF-8 mode.
  719 v427  3/16/09   A few Win32 fixes (thanks to Jason Hood).
  720 v428  3/30/09   Add "|-" syntax to LESSOPEN.
  721 v429  4/10/09   Fix search highlighting bug with underlined text.
  722 -----------------------------------------------------------------
  723 v430  4/22/09   Don't pass "-" to non-pipe LESSOPEN unless it starts with "-".
  724 v431  4/29/09   Fix highlight bug when match is at end of line.
  725 v432  6/27/09   Better fix for highlight bugs;
  726                 fix new problems with ignaw terminals.
  727 v433  6/28/09   Cleanup search code.
  728 v434  6/29/09   More cleanup.
  729 v435  7/04/09   Fix bugs with non-regex filtering.
  730 v436  7/05/09   Fix memory leak.
  731 -----------------------------------------------------------------
  732 v437  7/14/09   Fix bug in handling some long option names;
  733                 make percentage calculation more accurate.
  734 v438  12/29/10  Fix bugs with -i/-I and & filtering; 
  735                 exit with status 2 on ctrl-C with -K.
  736 v439  12/31/10  Add -A option.
  737 v440  1/5/11    Fix bug displaying prompt after = command.
  738 v441  1/21/11   Fix semi-infinite loop if no newlines in file;
  739                 make new -A behavior the default.
  740 -----------------------------------------------------------------
  741 v442  3/2/11    Fix search bug.
  742                 Add ctrl-G line edit command.
  743 v443  4/9/11    Fix Windows build.
  744 v444  6/8/11    Fix ungetc bug; remove vestiges of obsolete -l option.
  745 -----------------------------------------------------------------
  746 v445  10/19/11  Fix hilite bug in backwards scroll with -J.
  747                 Fix hilite bug with backspaces.
  748                 Fix bugs handling SGR sequences in Win32 (thanks to Eric Lee).
  749                 Add support for GNU regex (thanks to Reuben Thomas).
  750 v446  5/15/12   Up/down arrows in cmd editing search for matching cmd.
  751 v447  5/21/12   Add ESC-F command, two-pipe LESSOPEN syntax.
  752 v448  6/15/12   Print name of regex library in version message.
  753 v449  6/23/12   Allow config option --with-regex=none.
  754 v450  7/4/12    Fix EOF bug with ESC-F.
  755 v451  7/20/12   Fix typo.
  756 -----------------------------------------------------------------
  757 v452  10/19/12  Fix --with-regex=none, fix "stty 0", fix Win32.
  758                 Don't quit if errors in cmd line options.
  759 v453  10/27/12  Increase buffer sizes.
  760 v454  11/5/12   Fix typo.
  761 v455  11/5/12   Fix typo.
  762 v456  11/8/12   Fix option string incompatibility.
  763 v457  12/8/12   Use new option string syntax only after --use-backslash.
  764 v458  4/4/13    Fix display bug in using up/down in cmd buffer.
  765 -----------------------------------------------------------------
  766 v459  5/6/13    Fix ++ bug.
  767 v460  6/19/13   Automate construction of Unicode tables.
  768 v461  6/21/13   Collapse multiple CRs before LF.
  769 v462  11/26/13  Don't overwrite history file, just append to it.
  770 v463  7/13/14   Misc. fixes.
  771 v464  7/19/14   Fix bugs & improve performance in & filtering
  772                 (thanks to John Sullivan).
  773 v465  8/9/14    More fixes from John Sullivan.
  774 v466  8/23/14   Add colon to LESSANSIMIDCHARS.
  775 v467  9/18/14   Misc. fixes.
  776 v468  9/18/14   Fix typo
  777 v469  10/2/14   Allow extra string in command to append to a multichar
  778                 cmd without executing it; fix bug using GNU regex.
  779 v470  10/5/14   Fix some compiler warnings.
  780 v471  12/14/14  Fix unget issues with prompt. Allow disabling history
  781                 when compiled value of LESSHISTFILE = "-".
  782 v473  12/19/14  Fix prompt bug with stdin and -^P in lesskey extra string.
  783 v474  1/30/15   Fix bug in backwards search with match on bottom line.
  784                 Make follow mode reopen file if file shrinks.
  785 v475  3/2/15    Fix possible buffer overrun with invalid UTF-8; 
  786                 fix bug when compiled with no regex; fix non-match search.
  787 v476  5/3/15    Update man pages.
  788 v477  5/19/15   Fix off-by-one in jump_forw_buffered;
  789                 don't add FAKE_* files to cmd history.
  790 v478  5/21/15   Fix nonportable pointer usage in hilite tree.
  791 v479  7/6/15    Allow %% escapes in LESSOPEN variable.
  792 v480  7/24/15   Fix bug in no-regex searches; support MSVC v1900.
  793 v481  8/20/15   Fix broken -g option.
  794 -----------------------------------------------------------------
  795 v482  2/25/16   Update Unicode database to "2015-06-16, 20:24:00 GMT [KW]".
  796 v483  2/27/16   Regenerate hilite when change search caselessness.
  797                 (Thanks to Jason Hood)
  798                 Fix bug when terminal has no "cm". (Thanks to Noel Cragg)
  799 v484  9/20/16   Update to Unicode 9.0.0 database.
  800 v485  10/21/16  Fix "nothing to search" bug when top/bottom line is empty;
  801                 Display line numbers in bold. (thanks to Jason Hood);
  802                 Fix incorrect display when entering double-width chars in 
  803                 search string.
  804 v486  10/22/16  New commands ESC-{ and ESC-} to shift to start/end of 
  805                 displayed lines; new option -Da in Windows version to 
  806                 enable SGR mode (thanks to Jason Hood).
  807 v487  10/23/16  configure --help formatting.
  808 -----------------------------------------------------------------
  809 v488  2/23/17   Fix memory leaks in search (thanks to John Brooks).
  810 v489  3/30/17   Make -F not do init/deinit if file fits on one screen
  811                 (thanks to Jindrich Novy).
  812 v490  4/5/17    Switch to ANSI prototypes in funcs.h; remove "register".
  813 v491  4/7/17    Fix signed char bug.
  814 v492  4/21/17   Handle SIGTERM.
  815 v493  6/22/17   Fix bug initializing charset in MSDOS build.
  816 v494  6/26/17   Update Unicode tables; make Cf chars composing not binary.
  817 v495  7/3/17    Improve binary file detection (thanks to Bela Lubkin);
  818                 do -R filter when matching tags (thanks to Matthew Malcomson).
  819 v496  7/5/17    Add LESSRSCROLL marker.
  820 v497  7/5/17    Sync.
  821 v498  7/7/17    Fix early truncation of text if last char is double-width.
  822 v499  7/10/17   Misc fixes.
  823 v500  7/11/17   Fix bug where certain env variables couldn't be set in lesskey.
  824 v501  7/12/17   Make sure rscroll char is standout by default.
  825 v502  7/13/17   Control rscroll char via command line option not env variable.
  826 v503  7/13/17   Switch to git.
  827 v504  7/13/17   Call opt_rscroll at startup; change mkhelp.c to mkhelp.pl.
  828 v505  7/17/17   Add M and ESC-M commands; 
  829                 fix buffer handling with stdin and LESSOPEN.
  830 v506  7/17/17   On Windows, convert UTF-8 to multibyte if console is not UTF-8;
  831                 handle extended chars on input (thanks to Jason Hood).
  832 v507  7/18/17   Fix some bugs handling filenames containing shell metachars.
  833 v508  7/19/17   Fix bugs when using LESSOPEN to read stdin.
  834 v509  7/19/17   Fix another stdin bug.
  835 v510  7/20/17   Fix bug in determining when to reopen a file.
  836 v511  7/25/17   Fix bugs in recent MSDOS changes (thanks to Jason Hood).
  837 v512  7/26/17   Fix MSDOS build.
  838 v513  7/26/17   Fix switch to normal attr at end of line with -R and rscroll.
  839 v514  7/27/17   Fix bug in fcomplete when pattern does not match a file.
  840 v515  7/28/17   Allow 'u' in -D option on Windows.
  841 v516  7/29/17   Fix bug using LESSOPEN with filename containing metachars.
  842 v517  7/30/17   Status column shows matches even if hiliting is disabled via -G.
  843 v518  8/1/17    Use underline in sgr mode in MSDOS (thanks to Jason Hood).
  844 v519  8/10/17   Fix rscroll bug when last char of line starts coloration.
  845 v520  9/3/17    Fix compiler warning.
  846 v521  10/20/17  Fix binary file warning in UTF-8 files with SGI sequences.
  847 v522  10/20/17  Handle keypad ENTER key properly.
  848 v523  10/23/17  Cleanup.
  849 v524  10/24/17  Fix getcc bug.
  850 v525  10/24/17  Change M command to mark last displayed line.
  851 v526  10/25/17  Fix search hilite bug introduced in v517.
  852 v527  10/30/17  Fix search hilite bug on last page with -a.
  853 v528  11/3/17   Make second ESC-u clear status column.
  854 v529  11/12/17  Display Unicode formatting chars in hex if -U is set.
  855 v530  12/2/17   Minor doc change and add missing VOID_PARAM.
  856 -----------------------------------------------------------------
  857 v531  5/13/18   Fix bug with v on empty file; fix bug with v on file with 
  858                 metachars in name; add --nohistdups option.
  859 v532  7/27/18   Redraw screen on SIGWINCH even if screen size doesn't change.
  860 v533  8/1/18    Shell escape filenames in history; use PCRE_UTF8 flag; 
  861                 use wide-chars for Windows console title (thanks to Jason Hood).
  862 v534  8/9/18    Support PCRE2.
  863 v535  8/16/18   Don't count lines of initial screen if using -X with -F
  864                 (thanks to Linus Torvalds).
  865 v536  8/31/18   Use descriptive error messages for PCRE2.
  866 v537  8/31/18   Support mingw build system (thanks to Mike Soyka).
  867 v538  9/3/18    Clean up some WIN32 code.
  868 v539  9/13/18   Fix spurious input on Windows with CAPSLOCK.
  869 v540  10/29/18  Add --mouse option.
  870 v541  10/30/18  Add --MOUSE option.
  871 v542  11/6/18   Add mouse support for WIN32; add --wheel-lines option.
  872                 (thanks to Jason Hood).
  873 v543  11/12/18  Code cleanup.
  874 v544  11/16/18  Don't init/deinit keyboard/mouse if quit due to -F.
  875 v545  11/22/18  Fix Windows build, memory leaks.
  876 v546  11/29/18  Add --save-marks option.
  877 v547  11/30/18  Fix some bugs with saved marks.
  878 v548  12/14/18  Ignore mouse input when line editing.
  879 v549  2/10/19   Support X11 mouse extension 1006;
  880                 Win32 fixes (thanks to Jason Hood).
  881 v550  2/16/19   Fix Win32 build; don't enable mouse unless --mouse is set.
  882 v551  6/10/19   Doc changes.
  883 -----------------------------------------------------------------
  884 v552  7/8/19    Update Unicode tables.
  885 v553  10/17/19  Support tinfow; handle zero-width Hangul chars.
  886 v554  1/19/20   Remove erroneous free().
  887 v555  3/15/20   Display error msg immediately when toggle -o without stdin.
  888 v556  3/15/20   Update copyright.
  889 v557  3/21/20   Fix memory corruption with libtermcap.
  890 v558  4/17/20   Don't init terminal if -F and file fits on one screen (WIN32).
  891 v559  4/19/20   Handle deinit correctly on WIN32.
  892 v560  5/3/20    Fix regression when command results in no movement;
  893                 fix some less.nro issues (thanks to Bjarni I. Gislason).
  894 v561  5/11/20   Fix erroneous EOF calculation when F command is interrupted.
  895 v562  5/19/20   Update Unicode tables; minor doc formatting.
  896 */
  897 
  898 char version[] = "562";