Annotation of src/usr.bin/less/version.c, Revision 1.6
1.1 etheisen 1: /*
1.6 ! shadchin 2: * Copyright (C) 1984-2011 Mark Nudelman
1.1 etheisen 3: *
1.3 millert 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.
1.1 etheisen 6: *
1.3 millert 7: * For more information about less, or for information on how to
8: * contact the author, see the README file.
1.1 etheisen 9: */
10:
11:
12: /*
13: ----------------------- CHANGE HISTORY --------------------------
14:
1.6 ! shadchin 15: 1/29/84 Allowed use on standard input
! 16: 2/1/84 Added E, N, P commands
! 17: 4/17/84 Added '=' command, 'stop' signal handling
! 18: 4/20/84 Added line folding
! 19: v2 4/27/84 Fixed '=' command to use BOTTOM_PLUS_ONE,
! 20: instead of TOP, added 'p' & 'v' commands
! 21: v3 5/3/84 Added -m and -t options, '-' command
! 22: v4 5/3/84 Added LESS environment variable
! 23: v5 5/3/84 New comments, fixed '-' command slightly
! 24: v6 5/15/84 Added -Q, visual bell
! 25: v7 5/24/84 Fixed jump_back(n) bug: n should count real
! 26: lines, not folded lines. Also allow number on G command.
! 27: v8 5/30/84 Re-do -q and -Q commands
! 28: v9 9/25/84 Added "+<cmd>" argument
! 29: v10 10/10/84 Fixed bug in -b<n> argument processing
! 30: v11 10/18/84 Made error() ring bell if \n not entered.
! 31: -----------------------------------------------------------------
! 32: v12 2/13/85 Reorganized signal handling and made portable to 4.2bsd.
! 33: v13 2/16/85 Reword error message for '-' command.
! 34: v14 2/22/85 Added -bf and -bp variants of -b.
! 35: v15 2/25/85 Miscellaneous changes.
! 36: v16 3/13/85 Added -u flag for backspace processing.
! 37: v17 4/13/85 Added j and k commands, changed -t default.
! 38: v18 4/20/85 Rewrote signal handling code.
! 39: v19 5/2/85 Got rid of "verbose" eq_message().
! 40: Made search() scroll in some cases.
! 41: v20 5/21/85 Fixed screen.c ioctls for System V.
! 42: v21 5/23/85 Fixed some first_cmd bugs.
! 43: v22 5/24/85 Added support for no RECOMP nor REGCMP.
! 44: v23 5/25/85 Miscellanous changes and prettying up.
! 45: Posted to USENET.
! 46: -----------------------------------------------------------------
! 47: v24 6/3/85 Added ti,te terminal init & de-init.
! 48: (Thanks to Mike Kersenbrock)
! 49: v25 6/8/85 Added -U flag, standout mode underlining.
! 50: v26 6/9/85 Added -M flag.
! 51: Use underline termcap (us) if it exists.
! 52: v27 6/15/85 Renamed some variables to make unique in
! 53: 6 chars. Minor fix to -m.
! 54: v28 6/28/85 Fixed right margin bug.
! 55: v29 6/28/85 Incorporated M.Rose's changes to signal.c
! 56: v30 6/29/85 Fixed stupid bug in argument processing.
! 57: v31 7/15/85 Added -p flag, changed repaint algorithm.
! 58: Added kludge for magic cookie terminals.
! 59: v32 7/16/85 Added cat_file if output not a tty.
! 60: v33 7/23/85 Added -e flag and EDITOR.
! 61: v34 7/26/85 Added -s flag.
! 62: v35 7/27/85 Rewrote option handling; added option.c.
! 63: v36 7/29/85 Fixed -e flag to work if not last file.
! 64: v37 8/10/85 Added -x flag.
! 65: v38 8/19/85 Changed prompting; created prompt.c.
! 66: v39 8/24/85 (Not -p) does not initially clear screen.
! 67: v40 8/26/85 Added "skipping" indicator in forw().
! 68: Posted to USENET.
! 69: -----------------------------------------------------------------
! 70: v41 9/17/85 ONLY_RETURN, control char commands,
! 71: faster search, other minor fixes.
! 72: v42 9/25/85 Added ++ command line syntax;
! 73: ch_fsize for pipes.
! 74: v43 10/15/85 Added -h flag, changed prim.c algorithms.
! 75: v44 10/16/85 Made END print in all cases of eof;
! 76: ignore SIGTTOU after receiv ing SIGTSTP.
! 77: v45 10/16/85 Never print backspaces unless -u.
! 78: v46 10/24/85 Backwards scroll in jump_loc.
! 79: v47 10/30/85 Fixed bug in edit(): *first_cmd==0
! 80: v48 11/16/85 Use TIOCSETN instead of TIOCSETP.
! 81: Added marks (m and ' commands).
! 82: Posted to USENET.
! 83: -----------------------------------------------------------------
! 84: v49 1/9/86 Fixed bug: signal didn't clear mcc.
! 85: v50 1/15/86 Added ' (quote) to gomark.
! 86: v51 1/16/86 Added + cmd, fixed problem if first_cmd
! 87: fails, made g cmd sort of "work" on pipes
! 88: ev en if bof is no longer buffered.
! 89: v52 1/17/86 Made short files work better.
! 90: v53 1/20/86 Added -P option.
! 91: v54 1/20/86 Changed help to use HELPFILE.
! 92: v55 1/23/86 Messages work better if not tty output.
! 93: v56 1/24/86 Added -l option.
! 94: v57 1/31/86 Fixed -l to get confirmation before
! 95: ov erwriting an existing file.
! 96: v58 8/28/86 Added filename globbing.
! 97: v59 9/15/86 Fixed some bugs with very long filenames.
! 98: v60 9/26/86 Incorporated changes from Leith (Casey)
! 99: Leedom for boldface and -z option.
! 100: v61 9/26/86 Got rid of annoying repaints after ! cmd.
! 101: Posted to USENET.
! 102: -----------------------------------------------------------------
! 103: v62 12/23/86 Added is_directory(); change -z default to
! 104: -1 instead of 24; cat-and-exit if -e and
! 105: file is less than a screenful.
! 106: v63 1/8/87 Fixed bug in cat-and-exit if > 1 file.
! 107: v64 1/12/87 Changed puts/putstr, putc/putchr,
! 108: getc/getchr to av oid name conflict with
! 109: stdio functions.
! 110: v65 1/26/87 Allowed '-' command to change NUMBER
! 111: v alued options (thanks to Gary Puckering)
! 112: v66 2/13/87 Fixed bug: prepaint should use force=1.
! 113: v67 2/24/87 Added !! and % expansion to ! command.
! 114: v68 2/25/87 Added SIGWINCH and TIOCGWINSZ support;
! 115: changed is_directory to bad_file.
! 116: (thanks to J. Robert Ward)
! 117: v69 2/25/87 Added SIGWIND and WIOCGETD (for Unix PC).
! 118: v70 3/13/87 Changed help cmd from 'h' to 'H'; better
! 119: error msgs in bad_file, errno_message.
! 120: v71 5/11/87 Changed -p to -c, made triple -c/-C
! 121: for clear-eol like more's -c.
! 122: v72 6/26/87 Added -E, -L, use $SHELL in lsystem().
! 123: (thanks to Stev e Spearman)
! 124: v73 6/26/87 Allow Examine "#" for previous file.
! 125: Posted to USENET 8/25/87.
! 126: -----------------------------------------------------------------
! 127: v74 9/18/87 Fix conflict in EOF symbol with stdio.h,
! 128: Make os.c more portable to BSD.
! 129: v75 9/23/87 Fix problems in get_term (thanks to
! 130: Paul Eggert); new backwards scrolling in
! 131: jump_loc (thanks to Marion Hakanson).
! 132: v76 9/23/87 Added -i flag; allow single "!" to
! 133: inv oke a shell (thanks to Franco Barber).
! 134: v77 9/24/87 Added -n flag and line number support.
! 135: v78 9/25/87 Fixed problem with prompts longer than
! 136: the screen width.
! 137: v79 9/29/87 Added the _ command.
! 138: v80 10/6/87 Allow signal to break out of linenum scan.
! 139: v81 10/6/87 Allow -b to be changed from within less.
! 140: v82 10/7/87 Add cmd_decode to use a table for key
! 141: binding (thanks to Dav id Nason).
! 142: v83 10/9/87 Allow .less file for user-defined keys.
! 143: v84 10/11/87 Fix -e/-E problems (thanks to Felix Lee).
! 144: v85 10/15/87 Search now keeps track of line numbers.
! 145: v86 10/20/87 Added -B option and autobuf; fixed
! 146: "pipe error" bug.
! 147: v87 3/1/88 Fix bug re BSD signals while reading file.
! 148: v88 3/12/88 Use new format for -P option (thanks to
! 149: der Mouse), allow "+-c" without message,
! 150: fix bug re BSD hangup.
! 151: v89 3/18/88 Turn off line numbers if linenum scan
! 152: is interrupted.
! 153: v90 3/30/88 Allow -P from within less.
! 154: v91 3/30/88 Added tags file support (new -t option)
! 155: (thanks to Brian Campbell).
! 156: v92 4/4/88 Added -+option syntax.
! 157: v93 4/11/88 Add support for slow input (thanks to
! 158: Joe Orost & apologies for taking almost
! 159: 3 years to get this in!)
! 160: v94 4/11/88 Redo reading/signal stuff.
! 161: v95 4/20/88 Repaint screen better after signal.
! 162: v96 4/21/88 Add /! and ?! commands.
! 163: v97 5/17/88 Allow -l/-L from within less.
! 164: Eliminate some static arrays (use calloc).
! 165: Posted to USENET.
! 166: -----------------------------------------------------------------
! 167: v98 10/14/88 Fix incorrect calloc call; uninitialized
! 168: var in exec_mca; core dump on unknown TERM.
! 169: Make v cmd work if past last line of file.
! 170: Fix some signal bugs.
! 171: v99 10/29/88 Allow space between -X and string,
! 172: when X is a string-valued option.
! 173: v100 1/5/89 Fix globbing bug when $SHELL not set;
! 174: allow spaces after -t command.
! 175: v101 1/6/89 Fix problem with long (truncated) lines
! 176: in tags file (thanks to Neil Dixon).
! 177: v102 1/6/89 Fix bug with E# when no prev file;
! 178: allow spaces after -l command.
! 179: v103 3/14/89 Add -N, -f and -? options. Add z and w
! 180: commands. Add %L for prompt strings.
! 181: v104 3/16/89 Added EDITPROTO.
! 182: v105 3/20/89 Fix bug in find_linenum which cached
! 183: incorrectly on long lines.
! 184: v106 3/31/89 Added -k option and multiple lesskey
! 185: files.
! 186: v107 4/27/89 Add 8-bit char support and -g option.
! 187: Split option code into 3 files.
! 188: v108 5/5/89 Allocate position table dynamically
! 189: (thanks to Paul Eggert); change % command
! 190: from "percent" to vi-style brace finder.
! 191: v109 5/10/89 Added ESC-% command, split prim.c.
! 192: v110 5/24/89 Fixed bug in + option; fixed repaint bug
! 193: under Sun windows (thanks to Paul Eggert).
! 194: v111 5/25/89 Generalized # and % expansion; use
! 195: calloc for some error messages.
! 196: v112 5/30/89 Get rid of ESC-%, add {}()[] commands.
! 197: v113 5/31/89 Optimize lseeks (thanks to Paul Eggert).
! 198: v114 7/25/89 Added ESC-/ and ESC-/! commands.
! 199: v115 7/26/89 Added ESC-n command.
! 200: v116 7/31/89 Added find_pos to optimize g command.
! 201: v117 8/1/89 Change -f option to -r.
! 202: v118 8/2/89 Save positions for all previous files,
! 203: not just the immediately previous one.
! 204: v119 8/7/89 Save marks across file boundaries.
! 205: Add file handle stuff.
! 206: v120 8/11/89 Add :ta command.
! 207: v121 8/16/89 Add -f option.
! 208: v122 8/30/89 Fix performance with many buffers.
! 209: v123 8/31/89 Verbose prompts for string options.
! 210: Posted beta to USENET.
! 211: -----------------------------------------------------------------
! 212: v124 9/18/89 Reorganize search commands,
! 213: N = rev, ESC-n = span, add ESC-N.
! 214: v125 9/18/89 Fix tab bug (thanks to Alex Liu).
! 215: Fix EOF bug when both -w and -c.
! 216: v126 10/25/89 Add -j option.
! 217: v127 10/27/89 Fix problems with blank lines before BOF.
! 218: v128 10/27/89 Add %bj, etc. to prompt strings.
! 219: v129 11/3/89 Add -+,-- commands; add set-option and
! 220: unset-option to lesskey.
! 221: v130 11/6/89 Generalize A_EXTRA to string, remove
! 222: set-option, unset-option from lesskey.
! 223: v131 11/7/89 Changed name of EDITPROTO to LESSEDIT.
! 224: v132 11/8/89 Allow editing of command prefix.
! 225: v133 11/16/89 Add -y option (thanks to Jeff Sullivan).
! 226: v134 12/1/89 Glob filenames in the -l command.
! 227: v135 12/5/89 Combined {}()[] commands into one, and
! 228: added ESC-^F and ESC-^B commands.
! 229: v136 1/20/90 Added -S, -R flags. Added | command.
! 230: Added warning for binary files. (thanks
! 231: to Richard Brittain and J. Sullivan).
! 232: v137 1/21/90 Rewrote horrible pappend code.
! 233: Added * notation for hi-bit chars.
! 234: v138 1/24/90 Fix magic cookie terminal handling.
! 235: Get rid of "cleanup" loop in ch_get.
! 236: v139 1/27/90 Added MSDOS support. (many thanks
! 237: to Richard Brittain).
! 238: v140 2/7/90 Editing a new file adds it to the
! 239: command line list.
! 240: v141 2/8/90 Add edit_list for editing >1 file.
! 241: v142 2/10/90 Add :x command.
! 242: v143 2/11/90 Add * and @ modifies to search cmds.
! 243: Change ESC-/ cmd from /@* to / *.
! 244: v144 3/1/90 Messed around with ch_zero;
! 245: no real change.
! 246: v145 3/2/90 Added -R and -v/-V for MSDOS;
! 247: renamed FILENAME to avoid conflict.
! 248: v146 3/5/90 Pull cmdbuf functions out of command.c
! 249: v147 3/7/90 Implement ?@; fix multi-file edit bugs.
! 250: v148 3/29/90 Fixed bug in :e<file> then :e#.
! 251: v149 4/3/90 Change error,ierror,query to use PARG.
! 252: v150 4/6/90 Add LESS_CHARSET, LESS_CHARDEF.
! 253: v151 4/13/90 Remove -g option; clean up ispipe.
! 254: v152 4/14/90 lsystem() closes input file, for
! 255: editors which require exclusive open.
! 256: v153 4/18/90 Fix bug if SHELL unset;
! 257: fix bug in overstrike control char.
! 258: v154 4/25/90 Output to fd 2 via buffer.
! 259: v155 4/30/90 Ignore -i if uppercase in pattern
! 260: (thanks to Michael Rendell.)
! 261: v156 5/3/90 Remove scroll limits in forw() & back();
! 262: causes problems with -c.
! 263: v157 5/4/90 Forward search starts at next real line
! 264: (not screen line) after jump target.
! 265: v158 6/14/90 Added F command.
! 266: v159 7/29/90 Fix bug in exiting: output not flushed.
! 267: v160 7/29/90 Clear screen before initial output w/ -c.
! 268: v161 7/29/90 Add -T flag.
! 269: v162 8/14/90 Fix bug with +F on command line.
! 270: v163 8/21/90 Added LESSBINFMT variable.
! 271: v164 9/5/90 Added -p, LINES, COLUMNS and
! 272: unset mark ' == BOF, for 1003.2 D5.
! 273: v165 9/6/90 At EOF with -c set, don't display empty
! 274: screen when try to page forward.
! 275: v166 9/6/90 Fix G when final line in file wraps.
! 276: v167 9/11/90 Translate CR/LF -> LF for 1003.2.
! 277: v168 9/13/90 Return to curr file if "tag not found".
! 278: v169 12/12/90 G goes to EOF even if file has grown.
! 279: v170 1/17/91 Add optimization for BSD _setjmp;
! 280: fix #include ioctl.h TERMIO problem.
! 281: (thanks to Paul Eggert)
! 282: Posted to USENET.
! 283: -----------------------------------------------------------------
! 284: v171 3/6/91 Fix -? bug in get_filename.
! 285: v172 3/15/91 Fix G bug in empty file.
! 286: Fix bug with ?\n and -i and uppercase
! 287: pattern at EOF!
! 288: (thanks to Paul Eggert)
! 289: v173 3/17/91 Change N cmd to not permanently change
! 290: direction. (thanks to Brian Matthews)
! 291: v174 3/18/91 Fix bug with namelogfile not getting
! 292: cleared when change files.
! 293: v175 3/18/91 Fix bug with ++cmd on command line.
! 294: (thanks to Jim Meyering)
! 295: v176 4/2/91 Change | to not force current screen,
! 296: include marked line, start/end from
! 297: top of screen. Improve search speed.
! 298: (thanks to Don Mears)
! 299: v177 4/2/91 Add LESSHELP variable.
! 300: Fix bug with F command with -e.
! 301: Try /dev/tty for input before using fd 2.
! 302: Patches posted to USENET 4/2/91.
! 303: -----------------------------------------------------------------
! 304: v178 4/8/91 Fixed bug in globbing logfile name.
! 305: (thanks to Jim Meyering)
! 306: v179 4/9/91 Allow negative -z for screen-relative.
! 307: v180 4/9/91 Clear to eos rather than eol if "db";
! 308: don't use "sr" if "da".
! 309: (thanks to Tor Lillqvist)
! 310: v181 4/18/91 Fixed bug with "negative" chars 80 - FF.
! 311: (thanks to Benny Sander Hofmann)
! 312: v182 5/16/91 Fixed bug with attribute at EOL.
! 313: (thanks to Brian Matthews)
! 314: v183 6/1/91 Rewrite linstall to do smart config.
! 315: v184 7/11/91 Process \b in searches based on -u
! 316: rather than -i.
! 317: v185 7/11/91 -Pxxx sets short prompt; assume SIGWINCH
! 318: after a SIGSTOP. (thanks to Ken Laprade)
! 319: -----------------------------------------------------------------
! 320: v186 4/20/92 Port to MS-DOS (Microsoft C).
! 321: v187 4/23/92 Added -D option & TAB_COMPLETE_FILENAME.
! 322: v188 4/28/92 Added command line editing features.
! 323: v189 12/8/92 Fix mem overrun in anscreen.c:init;
! 324: fix edit_list to recover from bin file.
! 325: v190 2/13/93 Make TAB enter one filename at a time;
! 326: create ^L with old TAB functionality.
! 327: v191 3/10/93 Defer creating "flash" page for MS-DOS.
! 328: v192 9/6/93 Add BACK-TAB.
! 329: v193 9/17/93 Simplify binary_file handling.
! 330: v194 1/4/94 Add rudiments of alt_filename handling.
! 331: v195 1/11/94 Port back to Unix; support keypad.
! 332: -----------------------------------------------------------------
! 333: v196 6/7/94 Fix bug with bad filename; fix IFILE
! 334: type problem. (thanks to David MacKenzie)
! 335: v197 6/7/94 Fix bug with .less tables inserted wrong.
! 336: v198 6/23/94 Use autoconf installation technology.
! 337: (thanks to David MacKenzie)
! 338: v199 6/29/94 Fix MS-DOS build (thanks to Tim Wiegman).
! 339: v200 7/25/94 Clean up copyright, minor fixes.
! 340: Posted to prep.ai.mit.edu
! 341: -----------------------------------------------------------------
! 342: v201 7/27/94 Check for no memcpy; add casts to calloc;
! 343: look for regcmp in libgen.a.
! 344: (thanks to Kaveh Ghazi).
! 345: v202 7/28/94 Fix bug in edit_next/edit_prev with
! 346: non-existent files.
! 347: v203 8/2/94 Fix a variety of configuration bugs on
! 348: various systems. (thanks to Sakai
! 349: Kiyotaka, Harald Koenig, Bjorn Brox,
! 350: Teemu Rantanen, and Thorsten Lockert)
! 351: v204 8/3/94 Use strerror if available.
! 352: (thanks to J.T. Conklin)
! 353: v205 8/5/94 Fix bug in finding "me" termcap entry.
! 354: (thanks to Andreas Stolcke)
! 355: 8/10/94 v205+: Change BUFSIZ to LBUFSIZE to avoid name
! 356: conflict with stdio.h.
! 357: Posted to prep.ai.mit.edu
! 358: -----------------------------------------------------------------
! 359: v206 8/10/94 Use initial_scrpos for -t to avoid
! 360: displaying first page before init().
! 361: (thanks to Dominique Petitpierre)
! 362: v207 8/12/94 Fix bug if stdout is not tty.
! 363: v208 8/16/94 Fix bug in close_altfile if goto err1
! 364: in edit_ifile. (Thanks to M.J. Hewitt)
! 365: v209 8/16/94 Change scroll to wscroll to avoid
! 366: conflict with library function.
! 367: v210 8/16/94 Fix bug with bold on 8 bit chars.
! 368: (thanks to Vitor Duarte)
! 369: v211 8/16/94 Don't quit on EOI in jump_loc / forw.
! 370: v212 8/18/94 Use time_t if available.
! 371: v213 8/20/94 Allow ospeed to be defined in termcap.h.
! 372: v214 8/20/94 Added HILITE_SEARCH, -F, ESC-u cmd.
! 373: (thanks to Paul Lew and Bob Byrnes)
! 374: v215 8/23/94 Fix -i toggle behavior.
! 375: v216 8/23/94 Process BS in all searches, not only -u.
! 376: v217 8/24/94 Added -X flag.
! 377: v218 8/24/94 Reimplement undo_search.
! 378: v219 8/24/94 Find tags marked with line number
! 379: instead of pattern.
! 380: v220 8/24/94 Stay at same position after SIG_WINCH.
! 381: v221 8/24/94 Fix bug in file percentage in big file.
! 382: v222 8/25/94 Do better if can't reopen current file.
! 383: v223 8/27/94 Support setlocale.
! 384: (thanks to Robert Joop)
! 385: v224 8/29/94 Revert v216: process BS in search
! 386: only if -u.
! 387: v225 9/6/94 Rewrite undo_search again: toggle.
! 388: v226 9/15/94 Configuration fixes.
! 389: (thanks to David MacKenzie)
! 390: v227 9/19/94 Fixed strerror config problem.
! 391: Posted to prep.ai.mit.edu
! 392: -----------------------------------------------------------------
! 393: v228 9/21/94 Fix bug in signals: repeated calls to
! 394: get_editkeys overflowed st_edittable.
! 395: v229 9/21/94 Fix "Nothing to search" error if -a
! 396: and SRCH_PAST_EOF.
! 397: v230 9/21/94 Don't print extra error msg in search
! 398: after regerror().
! 399: v231 9/22/94 Fix hilite bug if search matches 0 chars.
! 400: (thanks to John Polstra)
! 401: v232 9/23/94 Deal with weird systems that have
! 402: termios.h but not tcgetattr().
! 403: Posted to prep.ai.mit.edu
! 404: -----------------------------------------------------------------
! 405: v233 9/26/94 Use get_term() instead of pos_init() in
! 406: psignals to re-get lower_left termcap.
! 407: (Thanks to John Malecki)
! 408: v234 9/26/94 Make MIDDLE closer to middle of screen.
! 409: v235 9/27/94 Use local strchr if system doesn't have.
! 410: v236 9/28/94 Don't use libucb; use libterm if
! 411: libtermcap & libcurses doesn't work.
! 412: (Fix for Solaris; thanks to Frank Kaefer)
! 413: v237 9/30/94 Use system isupper() etc if provided.
! 414: Posted to prep.ai.mit.edu
! 415: -----------------------------------------------------------------
! 416: v238 10/6/94 Make binary non-blinking if LESSBINFMT
! 417: is set to a string without a *.
! 418: v239 10/7/94 Don't let delimit_word run back past
! 419: beginning of cmdbuf.
! 420: v240 10/10/94 Don't write into termcap buffer.
! 421: (Thanks to Benoit Speckel)
! 422: v241 10/13/94 New lesskey file format.
! 423: Don't expand filenames in search command.
! 424: v242 10/14/94 Allow lesskey specification of "literal".
! 425: v243 10/14/94 Add #stop command to lesskey.
! 426: v244 10/16/94 Add -f flag to lesskey.
! 427: v245 10/25/94 Allow TAB_COMPLETE_FILENAME to be undefd.
! 428: v246 10/27/94 Move help file to /usr/local/share.
! 429: v247 10/27/94 Add -V option.
! 430: v248 11/5/94 Add -V option to lesskey.
! 431: v249 11/5/94 Remove -f flag from lesskey; default
! 432: input file is ~/.lesskey.in, not stdin.
! 433: v250 11/7/94 Lesskey input file "-" means stdin.
! 434: v251 11/9/94 Convert cfgetospeed result to ospeed.
! 435: (Thanks to Andrew Chernov)
! 436: v252 11/16/94 Change default lesskey input file from
! 437: .lesskey.in to .lesskey.
! 438: Posted to prep.ai.mit.edu
! 439: -----------------------------------------------------------------
! 440: v253 11/21/94 Fix bug when tags file has a backslash.
! 441: v254 12/6/94 Fix -k option.
! 442: v255 12/8/94 Add #define EXAMINE to disable :e etc.
! 443: v256 12/10/94 Change highlighting: only highlite search
! 444: results (but now it is reliable).
! 445: v257 12/10/94 Add goto_line and repaint_highlight
! 446: to optimize highlight repaints.
! 447: v258 12/12/94 Fixup in hilite_line if BS_SPECIAL.
! 448: v259 12/12/94 Convert to autoconf 2.0.
! 449: v260 12/13/94 Add SECURE define.
! 450: v261 12/14/94 Use system WERASE char as EC_W_BACKSPACE.
! 451: v262 12/16/94 Add -g/-G flag and screen_hilite.
! 452: v263 12/20/94 Reimplement/optimize -G flag behavior.
! 453: v264 12/23/94 Allow EXTRA string after line-edit cmd
! 454: in lesskey file.
! 455: v265 12/24/94 Add LESSOPEN=|cmd syntax.
! 456: v266 12/26/94 Add -I flag.
! 457: v267 12/28/94 Formalize the four-byte header emitted
! 458: by a LESSOPEN pipe.
! 459: v268 12/28/94 Get rid of four-byte header.
! 460: v269 1/2/95 Close alt file before open new one.
! 461: Avoids multiple popen().
! 462: v270 1/3/95 Use VISUAL; use S_ISDIR/S_ISREG; fix
! 463: config problem with Solaris POSIX regcomp.
! 464: v271 1/4/95 Don't quit on read error.
! 465: v272 1/5/95 Get rid of -L.
! 466: v273 1/6/95 Fix ch_ungetchar bug; don't call
! 467: LESSOPEN on a pipe.
! 468: v274 1/6/95 Ported to OS/2 (thanks to Kai Uwe Rommel)
! 469: v275 1/18/95 Fix bug if toggle -G at EOF.
! 470: v276 1/30/95 Fix OS/2 version.
! 471: v277 1/31/95 Add "next" charset; don't display ^X
! 472: for X > 128.
! 473: v278 2/14/95 Change default for -G.
! 474: Posted to prep.ai.mit.edu
! 475: -----------------------------------------------------------------
! 476: v279 2/22/95 Add GNU options --help, --version.
! 477: Minor config fixes.
! 478: v280 2/24/95 Clean up calls to glob(); don't set #
! 479: if we can't open the new file.
! 480: v281 2/24/95 Repeat search should turn on hilites.
! 481: v282 3/2/95 Minor fixes.
! 482: v283 3/2/95 Fix homefile; make OS2 look in $HOME.
! 483: v284 3/2/95 Error if "v" on LESSOPENed file;
! 484: "%" figures out file size on pipe.
! 485: v285 3/7/95 Don't set # in lsystem;
! 486: lesskey try $HOME first.
! 487: v286 3/7/95 Reformat change history (too much free time?).
! 488: v287 3/8/95 Fix hilite bug if overstrike multiple chars.
! 489: v288 3/8/95 Allow lesskey to override get_editkey keys.
! 490: v289 3/9/95 Fix adj_hilite bug when line gets processed by
! 491: hilite_line more than once.
! 492: v290 3/9/95 Make configure automatically. Fix Sequent problem
! 493: with incompatible sigsetmask().
! 494: Posted to prep.ai.mit.edu
! 495: -----------------------------------------------------------------
! 496: v291 3/21/95 Add #env to lesskey. Fix MS-DOS build.
! 497: Posted to simtel.
! 498: -----------------------------------------------------------------
! 499: v292 4/24/95 Add MS-DOS support for Borland C.
! 500: Fix arrow keys in MS-DOS versions.
! 501: v293 4/28/95 Add auto-versioning stuff to make dist.
! 502: v294 5/12/95 Fix Borland build.
! 503: v295 1/20/96 Fix search on squished file; add /@@.
! 504: v296 1/23/96 Allow cmdbuf larger than screen width.
! 505: v297 1/24/96 Don't call termcap if tgetent fails;
! 506: add #defines for buffers.
! 507: v298 1/24/96 Change @@ to ^K.
! 508: Add alternate search modifiers ^N, ^F, ^E.
! 509: v299 1/25/96 Fix percent overflow in jump_percent (thanks to Brent Wiese);
! 510: don't send "ti" after shell command till RETURN pressed.
! 511: v300 1/25/96 Change -U to print tabs as ^I.
! 512: v301 1/30/96 Make hilites work in cmd F output.
! 513: v302 1/31/96 Fix cmd F to notice window-change signals.
! 514: v303 1/31/96 Add ESC-SPACE command.
! 515: v304 2/1/96 Add ^R search modifier; add LESSSECURE.
! 516: v305 2/2/96 Workaround Linux /proc kernel bug; add LESSKEY.
! 517: v306 3/16/96 Minor fixes.
! 518: v307 3/25/96 Allow cmd line arg "--"; fix DOS & OS/2 defines.h.
! 519: v308 4/4/96 Port to OS-9 (thanks to Boisy Pitre); fix -d.
! 520: v309 4/9/96 Fix OS-9 version; fix tags bug with "$".
! 521: v310 4/10/96 Get rid of HELPFILE.
! 522: v311 4/22/96 Add Windows32 support; merge doscreen.c into screen.c.
! 523: v312 4/24/96 Don't quit after "cannot reopen" error.
! 524: v313 4/25/96 Added horizontal scrolling.
! 525: v314 4/26/96 Modified -e to quit on reaching end of a squished file.
! 526: v315 4/26/96 Fix "!;TAB" bug.
! 527: v316 5/2/96 Make "|a" when (a < curr screen) go to end of curr screen.
! 528: v317 5/14/96 Various fixes for the MS-DOS and OS/2 builds.
! 529: Added ## and %% handling for filenames
! 530: v318 5/29/96 Port to OS-9 Microware compiler; minor fixes
! 531: (thanks to Martin Gregorie).
! 532: v319 7/8/96 Fix Windows port (thanks to Jeff Paquette).
! 533: v320 7/11/96 Final fixes for Windows port.
! 534: v321 7/18/96 Minor fixes.
! 535: Posted to Web page.
! 536: -----------------------------------------------------------------
! 537: v322 8/13/96 Fix bug in shell escape from help file; add support for
! 538: Microsoft Visual C under Windows; numerous small fixes.
! 539: v323 8/19/96 Fixes for Windows version (thanks to Simon Munton);
! 540: fix for Linux library weirdness (thanks to Jim Diamond);
! 541: port to DJGPP (thanks to Eli Zaretskii).
! 542: v324 8/21/96 Add support for spaces in filenames (thanks to Simon Munton).
! 543: v325 8/21/96 Add lessecho, for spaces in filenames under Unix.
! 544: v326 8/27/96 Fix DJGPP version.
! 545: v327 9/1/96 Reorganize lglob, make spaces in filenames work better in Unix.
! 546: v328 10/7/96 Append / to directory name in filename completion.
! 547: Fix MS-DOS and OS-9 versions.
! 548: v329 10/11/96 Fix more MS-DOS bugs; add LESSSEPARATOR; add -" option.
! 549: Add LESSMETACHARS, LESSMETAESCAPE.
! 550: v330 10/21/96 Minor fixes.
! 551: Posted to Web page.
! 552: -----------------------------------------------------------------
! 553: v331 4/22/97 Various Windows fixes (thanks to Gurusamy Sarathy).
! 554: v332 4/22/97 Enter filenames from cmd line into edit history.
! 555: Posted to Web page.
! 556: -----------------------------------------------------------------
! 557: v333 3/4/99 Changed -w to highlite new line after forward movement.
! 558: v334 3/9/99 Avoid overflowing prompt buffer; add %d and %D.
! 559: v335 3/20/99 Add EBCDIC support (thanks to Thomas Dorner).
! 560: Use HOMEDRIVE/HOMEPATH on Windows (thanks to Preston Bannister).
! 561: Posted to Web page.
! 562: -----------------------------------------------------------------
! 563: v336 4/8/99 Fix installation bugs.
! 564: v337 4/9/99 Fix another installation bug.
! 565: Posted to Web page.
! 566: -----------------------------------------------------------------
! 567: v338 4/13/99 Add support for long option names.
! 568: v339 4/18/99 Add \k, long option names to lesskey. Add -^P. Add :d.
! 569: v340 4/21/99 Add regexec2. Fix Windows build.
! 570: Posted to Web page.
1.3 millert 571: -----------------------------------------------------------------
572: v341 5/6/99 Add -F option; %c & ?c prompt escapes.
1.6 ! shadchin 573: (Thanks to Michele Maltoni)
1.3 millert 574: v342 7/22/99 Add system-wide lesskey file; allow GPL or Less License.
1.6 ! shadchin 575: v343 9/23/99 Support UTF-8 (Thanks to Robert Brady).
! 576: Add %P and ?P in prompts.
! 577: v344 10/27/99 -w highlights target line of g and p commands.
! 578: v345 10/29/99 Make -R pass thru ESC but not other control chars.
! 579: Posted to Web page.
1.3 millert 580: -----------------------------------------------------------------
581: v346 11/4/99 Fix bugs in long option processing; R cmd should clear hilites.
1.6 ! shadchin 582: Posted to Web page.
1.3 millert 583: -----------------------------------------------------------------
1.6 ! shadchin 584: v347 12/13/99 Fixes for DJGPP version (thanks to Eli Zaretskii).
! 585: v348 12/28/99 Fix deleting file with marks (thanks to Dimitar Jekov).
! 586: Fix color problem in DJGPP version (thanks to Eli Zaretskii).
! 587: v349 1/24/00 Fix minor DJGPP bugs; check environment vars for UTF-8;
! 588: add --with-editor (thanks to Eli, Markus Kuhn, Thomas Schoepf).
! 589: v350 3/1/00 Fix clear-while-standout bug.
! 590: v351 3/5/00 Change -M and = prompts to show top & bottom line number.
! 591: Posted to Web page.
! 592: -----------------------------------------------------------------
! 593: v352 3/8/00 Fix scan_option NULL dereference.
! 594: -----------------------------------------------------------------
! 595: v353 3/20/00 Fix SECURE compile bug, allow space after numeric option.
! 596: v354 3/23/00 Add support for PCRE; add --with-regex configure option.
! 597: -----------------------------------------------------------------
! 598: v355 6/28/00 Add -# option (thanks to Andy Levinson).
! 599: v356 7/5/00 Add -J option.
! 600: v357 7/6/00 Support sigprocmask.
! 601: -----------------------------------------------------------------
! 602: v358 7/8/00 Fix problems with #stop in lesskey file.
! 603: Posted to Web page.
! 604: -----------------------------------------------------------------
! 605: v359 9/10/00 Fixes for Win32 display problems (thanks to Maurizio Vairani).
! 606: v360 1/17/01 Move sysless to etc.
! 607: v361 12/4/01 Add IBM-1047 charset & EBCDIC fixes (thanks to Thomas Dorner).
! 608: Fix 32 bit dependencies (thanks to Paul Eggert).
! 609: Fix UTF-8 overstriking (thanks to Robert Brady).
! 610: v362 12/4/01 Make status column show search targets.
! 611: v363 12/6/01 Add --no-keypad option.
! 612: Add variable width tabstops (thanks to Peter Samuelson).
! 613: v364 12/10/01 Better handling of very long lines in input;
! 614: Fix horizontal shifting of colored text.
! 615: v365 12/11/01 Fix overstriking of tabs;
! 616: Add support for global(1) and multiple tag matches
! 617: (thanks to Shigio Yamaguchi and Tim Vanderhoek).
! 618: v366 12/11/01 Fixes for OS/2 (thanks to Kyosuke Tokoro).
! 619: v367 12/13/01 Allow -D and -x options to terminate without dollar sign;
! 620: Right/left arrow when entering N are shift cmds, not line edit.
! 621: v368 12/18/01 Update lesskey commands.
! 622: v370 12/23/01 Fix tags error messages.
! 623: Posted to Web page.
! 624: -----------------------------------------------------------------
! 625: v371 12/26/01 Fix new_file bug; use popen in Windows version;
! 626: fix some compiler warnings.
! 627: v372 12/29/01 Make -b be in units of 1K.
! 628: v373 1/14/02 Improve handling of filenames containing shell metachars.
! 629: v374 2/7/02 Fix memory leak; fix bug in -x argument parsing.
! 630: v375 4/7/02 Fix searching for SGR sequences; fix SECURE build;
! 631: add SGR support to DJGPP version (thanks to Eli Zaretskii).
! 632: v376 6/10/02 Fix bug in overstriking mulitbyte UTF-8 characters
! 633: (thanks to Jungshik Shin).
! 634: Posted to Web page.
! 635: -----------------------------------------------------------------
! 636: v377 9/10/02 Fix bug in Windows version when file contains CR;
! 637: fix bug in search highlights with -R;
! 638: make initial buffer limit really be 64K not unlimited.
! 639: v378 9/30/02 Misc bug fixes and compiler warning cleanup.
! 640: Posted to Web page.
! 641: -----------------------------------------------------------------
! 642: v379 11/23/02 Add -L option; fix bug with ctrl-K in lesskey files;
! 643: improve UTF-8 overstriking and underscore overstriking;
! 644: fix minor man page problems; change to autoconf 2.54.
! 645: v380 11/24/02 Make LINENUM same as POSITION.
! 646: v381 11/28/02 Make -N use 7 columns for line number if possible.
! 647: -----------------------------------------------------------------
! 648: v382 2/3/04 Remove copyrighted code.
! 649: -----------------------------------------------------------------
! 650: v383 2/16/04 Add history file; add -K option; improve UTF-8 handling;
! 651: fix some signed char bugs (thanks to Christian Biere);
! 652: fix some upper/lower case bugs (thanks to Bjoern Jacke);
! 653: add erase2 char (thanks to David Lawrence);
! 654: add windows charset (thanks to Dimitar Zhekov).
! 655: v384 2/20/04 Improvements in UTF-8 handling.
! 656: v385 2/23/04 Fix UTF-8 output bug.
! 657: -----------------------------------------------------------------
! 658: v386 9/13/05 Improvements to UTF-8 shift & color (thanks to Charles Levert);
! 659: protect against invalid LESSOPEN and LESSCLOSE values.
! 660: v387 9/14/05 Update Charles Levert's UTF-8 patch.
! 661: v388 9/14/05 Change history behavior; change most sprintf calls to snprintf.
! 662: v389 9/14/05 Fix copy & paste with long lines; improve performance of
! 663: expand_linebuf; fix crash in init_mlist;
! 664: v390 9/15/05 Show search matches in status column even if -G is set.
! 665: -----------------------------------------------------------------
! 666: v391 9/17/05 Fix bugs.
! 667: v392 10/14/05 Fix line wrapping bug.
! 668: v393 10/19/05 Allow multiple attributes per char; fix bold+underline bug
! 669: (thanks again to Charles Levert).
! 670: v394 11/8/05 Fix prompt bug; fix compile problem in Windows build.
! 671: -----------------------------------------------------------------
! 672: v395 1/12/07 Update Unicode tables (thanks to Charles Levert);
! 673: don't chmod if LESSHISTFILE = /dev/null;
! 674: make -f work for directories; support DESTDIR in Makefile;
! 675: fix sigset_t detection in configure;
! 676: make "t" cmd traverse tags in correct order
! 677: v396 1/13/07 Add compatibility with POSIX more.
! 678: v397 3/21/07 Allow decimal point in number for % command;
! 679: Allow decimal point in number for -j option;
! 680: Allow n command to fetch last search pattern from history
! 681: (thanks to arno).
! 682: v398 3/22/07 Don't rewrite history file if not necessary;
! 683: fix bug when filenames contain "$".
! 684: v399 3/22/07 Don't move to bottom of screen at startup;
! 685: don't output extraneous newlines.
! 686: v400 3/23/07 Allow search to find pattern after null byte (PCRE and no-regex)
! 687: (thanks to Michael Constant).
! 688: -----------------------------------------------------------------
! 689: v401 3/24/07 Minor documentation fixes.
! 690: v402 3/30/07 Fix autoconf bug when memcpy etc are inline;
! 691: fix bug in terminating number following -j option.
! 692: v403 5/25/07 Fix Windows build.
! 693: v404 6/5/07 Fix display bug with F command and long lines.
! 694: v405 6/17/07 Fix display bug when using -w option.
! 695: v406 6/17/07 Fix secure build.
! 696: v407 8/16/07 Fix bugs; support CSI chars.
! 697: v408 10/1/07 Fix bug in -i with non-ASCII chars.
! 698: v409 10/12/07 Fix crash when viewing text with invalid UTF-8 sequences.
! 699: v411 11/6/07 Fix case-insensitive searching with non-ASCII text.
! 700: v412 11/6/07 Use symbolic SEEK constants.
! 701: v413 11/6/07 Fix search highlight bug with non-ASCII text.
! 702: v414 11/6/07 Fix display bug with no-wrap terminals.
! 703: v415 11/14/07 Add --follow-name option.
! 704: v416 11/22/07 Fix crash when searching text with invalid UTF-8 sequences.
! 705: v417 12/31/07 Don't support single-char CSI in UTF-8 mode;
! 706: fix bug with -R and invalid CSI sequences;
! 707: fix bug searching text with SGR sequences with -r;
! 708: emulate SGR sequences in WIN32 build.
! 709: v418 12/31/07 Clean up.
! 710: -----------------------------------------------------------------
! 711: v419 1/16/08 Make CSI char 0x9B work in UTF-8 mode (thanks to Colin Watson).
! 712: v420 2/24/08 Add & command; fix -F option; fix '' after G.
! 713: v421 2/24/08 Ignore filtered lines when searching.
! 714: v422 3/2/08 Output CR at startup.
! 715: v423 5/27/08 Clean up.
! 716: v424 6/16/08 Fix compile bug with pcre; don't filter help file.
! 717: v425 7/14/08 Fix non-ANSI code in list handling in ch.c.
! 718: v426 10/27/08 Fix ignaw terminal handling (thanks to Per Hedeland);
! 719: fix binary file detection in UTF-8 mode.
! 720: v427 3/16/09 A few Win32 fixes (thanks to Jason Hood).
! 721: v428 3/30/09 Add "|-" syntax to LESSOPEN.
! 722: v429 4/10/09 Fix search highlighting bug with underlined text.
! 723: -----------------------------------------------------------------
! 724: v430 4/22/09 Don't pass "-" to non-pipe LESSOPEN unless it starts with "-".
! 725: v431 4/29/09 Fix highlight bug when match is at end of line.
! 726: v432 6/27/09 Better fix for highlight bugs;
! 727: fix new problems with ignaw terminals.
! 728: v433 6/28/09 Cleanup search code.
! 729: v434 6/29/09 More cleanup.
! 730: v435 7/04/09 Fix bugs with non-regex filtering.
! 731: v436 7/05/09 Fix memory leak.
! 732: -----------------------------------------------------------------
! 733: v437 7/14/09 Fix bug in handling some long option names;
! 734: make percentage calculation more accurate.
! 735: v438 12/29/10 Fix bugs with -i/-I and & filtering;
! 736: exit with status 2 on ctrl-C with -K.
! 737: v439 12/31/10 Add -A option.
! 738: v440 1/5/11 Fix bug displaying prompt after = command.
! 739: v441 1/21/11 Fix semi-infinite loop if no newlines in file;
! 740: make new -A behavior the default.
! 741: -----------------------------------------------------------------
! 742: v442 3/2/11 Fix search bug.
! 743: Add ctrl-G line edit command.
! 744: v443 4/9/11 Fix Windows build.
! 745: v444 6/8/11 Fix ungetc bug; remove vestiges of obsolete -l option.
1.1 etheisen 746: */
747:
1.6 ! shadchin 748: char version[] = "444";
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