initial import of NetBSD tree

1 files changed, 528 insertions, 0 deletions

diff --git a/usr.bin/vi/docs/changelog b/usr.bin/vi/docs/changelog
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+1.33 -> 1.34 Wed Aug 17 14:37:32 1994 (PUBLICLY AVAILABLE VERSION)
+	+ Back out sccsid string fix, it won't work on SunOS 4.1.
+1.32 -> 1.33 Wed Aug 17 09:31:41 1994 (PUBLICLY AVAILABLE VERSION)
+	+ Get back 5K of data space for the sccsid strings.
+	+ Fix bug where cG fix in version 1.31 broke cw cursor positioning
+	  when the change command extended the line.
+	+ Fix core dump in map/seq code if character larger than 7 bits.
+	+ Block signals when manipulating the SCR chains.
+	+ Fix memory allocation for machines with multiple pointer sizes.
+1.31 -> 1.32 Mon Aug 15 14:27:49 1994
+	+ Turn off recno mmap call for Solaris 2.4/SunOS 5.4.
+1.30 -> 1.31 Sun Aug 14 13:13:35 1994
+	+ Fix bug were cG on the last line of a file wasn't done in line mode,
+	  and where the cursor wasn't positioned correctly after exiting text
+	  insert mode.
+	+ Add termcap workaround to make function keys greater than 9 work
+	  correctly (or fail if old-style termcap support).
+	+ Change ex/vi to not flush mapped keys on error -- this is historic
+	  practice, and people depended on it.
+	+ Rework vi parser so that no command including a mapped key ever
+	  becomes the '.' command, matching historic practice.
+	+ Make <escape> cancellation in the vi parser match POSIX 1003.2.
+	+ Fix curses bug where standout string was written for each standout
+	  character, and where standout mode was never exited explicitly.
+	  Fix bugs in curses SF/sf and SR/sr scrolling, as seen on Sun and
+	  x86 consoles.
+	+ The v/global commands execute the print command by default.
+	+ The number option historically applies to ex as well as vi.
+1.29 -> 1.30 Mon Aug  8 10:30:42 1994
+	+ Make first read into a temporary set the file's name.
+	+ Permit any key to continue scrolling or ex commands -- this
+	  allows stacked colon commands, and matches historic practice.
+	+ Don't output normal ! command commentary in ex silent mode.
+	+ Allow +/- flags after substitute commands, make line (flag)
+	  offsets from vi mode match historic practice.
+	+ Return <eof> to ex immediately, even if preceded by spaces.  Rework
+	  ex parser to do erase the prompt instead of depending on the print
+	  routines to do it.  Minor fixes to the ex parser for display of
+	  default and scrolling commands.  MORE EX PARSER CHANGES.
+1.28 -> 1.29 Fri Aug  5 10:18:07 1994
+	+ Make the abbreviated ex delete command work (:dele---###lll for
+	  example, is historically legal.
+	+ When autoprint fires, multiple flags may be set, use ex_print
+	  directly instead of the stub routines.
+	+ Change v/global commands to turn off autoprint while running.
+	+ Minor changes to make the ! command display match historic output.
+	+ Rework the ex parser to permit multiple command separators without
+	  commands -- MAJOR CHANGE, likely to introduce all sorts of new bugs.
+	+ Fix cd command to expand argument in the context of each element
+	  of the cdpath option, make relative paths always relative to the
+	  current directory.
+	+ Rework write/quit cases for temporary files, so that user's don't
+	  discard them accidentally.
+	+ Check for window size changes when continuing after a suspend.
+	+ Fix memory problem in svi_screen, used free'd memory.
+	+ Change the ex change, insert, append commands to match historic
+	  cursor positions if no data entered by the user.
+	+ Change ex format flags (#, l, p) to affect future commands, not
+	  just the current one, to match historic practice.
+	+ Make the user's EOF character an additional scroll character in ex.
+	+ Fix ex ^D scrolling to be the value of the scroll option, not half
+	  the screen.
+	+ Fix buffer execution to match historic practice -- bugs where the
+	  '*' command didn't work, and @<carriage-return> didn't work.
+	+ Fix doubled reporting of deleted lines in filters.
+	+ Rework the % ` / ? ( ) N n { and ^A commands to always cut into
+	  numeric buffers regardless of the location or length of the cut.
+	  This matches historic practice.
+	+ Fix the { command to check the current line if the cursor doesn't
+	  start on the first character of the line.
+	+ Do '!' expansion in the ex read command arguments, it's historic
+	  practice.  In addition, it sets the last '!' command.
+1.27 -> 1.28 Wed Jul 27 21:29:18 1994
+	+ Add support for scrolling using the CS and SF/sf/SR/sr termcap
+	  strings to the 4BSD curses.
+	+ Rework of getkey() introduced a bug where command interrupt put
+	  nvi into an infinite loop.
+	+ Piping through a filter historically cut the replaced lines into
+	  the default buffer, although not the numeric ones.
+	+ Read of a filter and !! historically moved to the first nonblank
+	  of the resulting cursor line (most of the time).
+	+ Rework cursor motion flags, to support '!' as a motion command.
+1.26 -> 1.27 Tue Jul 26 10:27:58 1994
+	+ Add the meta option, to specify characters the shell will expand.
+	+ Fix the read command to match historic practice, the white space
+	  and bang characters weren't getting parsed correctly.
+	+ Change SIGALRM handler to save and restore errno.
+	+ Change SunOS include/compat.h to include <vfork.h> so that the
+	  ex/filter.c code works again.
+	+ Don't put lines deleted by the ex delete command into the numeric
+	  buffers, matching historic practice.
+	+ Fix; if appending to a buffer, default buffer historically only
+	  references the appended text, not the resulting text.
+	+ Support multiple, semi-colon separated search strings, and 'z'
+	  commands after search strings.
+	+ Make previous context mark setting match historic practice (see
+	  docs/internals/context).
+	+ Fix the set command to permit whitespace between the option and
+	  the question mark, fix question marks in general.
+	+ Fix bug where ex error messages could be accidentally preceded
+	  by a single space.
+	+ Fix bug where curses reorganization could lose screen specific
+	  mappings as soon as any screen exited.
+	+ Fix bug in paragraph code where invalid macros could be matched.
+	  Make paragraph motions stop at formfeed (^L) characters.
+	+ Change 'c' to match historic practice, it cut text into numeric
+	  buffers.
+1.25 -> 1.26 Tue Jul 19 17:46:24 1994
+	+ Ignore SIGWINCH if the screen size is unchanged; SunOS systems
+	  deliver one when a screen is uncovered.
+	+ Fix: don't permit a command with a motion component to wrap due
+	  to wrapscan and return to the original cursor position.
+	+ Fix: ^E wasn't beeping when reaching the bottom of the file.
+	+ Fix bg/fg bug where tmp file exiting caused a NULL dereference.
+	+ Rework file locking code to use fcntl(2) explicitly.
+	+ Fix bug in section code where invalid macros could be matched.
+	+ Fix bug where line number reset by vi's Q command.
+	+ Add explicit character mode designation to character mode buffers.
+	+ Add <sys/ioctl.h> include to sex/sex_window.c, needed by NET/2
+	  vintage systems.
+	+ Change to always flush a character during suspend, 4BSD curses
+	  has the optimization where it doesn't flush after a standend().
+	+ Fix bug on OSF1 where <curses.h> changes the values of VERASE,
+	  VKILL and VWERASE to incorrect ones.
+	+ Fix bug where optarg used incorrectly in main.c.
+	+ Block all signals when acting on a signal delivery.
+	+ Fix recovery bug where RCV_EMAIL could fire even if there wasn't
+	  a backing file; format recovery message.
+1.24 -> 1.25 Sun Jul 17 14:33:38 1994
+	+ Stop allowing keyboard suspends (^Z) in insert mode, it's hard
+	  to get autowrite correct, and it's not historic practice.
+	+ Fix z^, z+ to match historic practice.
+	+ Bug in message handling, "vi +35 non-existent_file" lost the
+	  status message because the "+35" pushed onto the stack erased
+	  it.  For now, change so that messages aren't displayed if there
+	  are keys waiting -- may need to add a "don't-erase" bit to the
+	  character in the stack instead.
+	+ Bug in svi_msgflush(), where error messages could come out in
+	  normal video.
+1.23 -> 1.24 Sat Jul 16 18:30:18 1994
+	+ Fix core dump in exf.c, where editing a non-existent file and
+	  exiting could cause already free'd memory to be free'd.
+	+ Clean up numerous memory errors, courtesy of Purify.
+	+ Change process wait code to fail if wait fails, and not attempt
+	  to interpret the wait return information.
+	+ Open recovery and DB files for writing as well as reading, System
+	  V (fcntl) won't let you acquire LOCK_EX locks otherwise.
+	+ Fix substitute bug where could malloc 0 bytes (AIX breaks).
+	+ Permit the mapping of <carriage-return>, it's historic practice.
+	+ Historic vi didn't eat <blank> characters before the force
+	  flag, match historic practice.
+	+ Bug in ex argument parsing, corrected for literal characters
+	  twice.
+	+ Delete screen specific maps when the screen closes.
+	+ Move to the first non-<blank> in the line on startup; historic
+	  practice.
+	+ Change the ex visual command to move directly to a line if no
+	  trailing 'z' command.
+	+ Fix "[[" and "]]" to match historic practice (yet again...).
+	+ Fix "yb" and "y{" commands to update the cursor correctly.
+	+ Change "~<motion>" to match the yank cursor movement semantics
+	  exactly.
+	+ Move all of the curses related code into sex/svi -- major rework,
+	  but should help in future ports.
+	+ Fix bug in split code caused by new file naming code, where would
+	  drop core when a split screen exited.
+	+ Change svi_ex_write to do character display translation, so that
+	  messages with file names in them are displayed correctly.
+	+ Display the file name on split screens instead of a divider line.
+	+ Fix move bug, wasn't copying lines before putting them.
+	+ Fix bug were :n dropped core if no arguments supplied.
+	+ Don't quote characters in executed buffer: "ifoo<esc>" should leave
+	  insert mode after the buffer is executed.
+	+ Tagpop and tagpush should set the absolute mark in case only moving
+	  within a file.
+	+ Skip leading whitespace characters before tags and cursor word
+	  searches.
+	+ Fix bug in ex_global where re_conv() was allocating the temporary
+	  buffer and not freeing it.
+1.22 -> 1.23: Wed Jun 29 19:22:33 1994
+	+ New <sys/cdefs.h> required "inline" to change to "__inline"
+	+ Fix System V curses code for new ^Z support.
+	+ Fix off-by-one in the move code, avoid ":1,$mo$" with only one
+	  line in the buffer.
+	+ Line orientation of motion commands was remembered too long,
+	  i.e.  '.' command could be incorrectly marked as line oriented.
+	+ Move file modification time into EXF, so it's shared across
+	  split screens.
+	+ Put the prev[ious] command back in, people complained.
+	+ Random fixes to next/prev semantics changed in 1.22.
+	+ Historically vi doesn't only move to the last address if there's
+	  ANYTHING after the addresses, e.g. ":3" moves to line 3, ":3|"
+	  prints line 3.
+1.21 -> 1.22: Mon Jun 27 11:01:41 1994
+	+ Make the line between split screens inverse video again.
+	+ Delete the prev[ious] command, it's not useful enough to keep.
+	+ Rework :args/file name handling from scratch -- MAJOR CHANGE,
+	  likely to introduce all sorts of new bugs.
+	+ Fix RE bug where no subexpressions in the pattern but there were
+	  subexpressions referenced in the replacement, e.g. "s/XXX/\1/g".
+	+ Change recovery to not leave unmodified files around after a
+	  crash, by using the owner 'x' bit on unmodified backup files.
+	  MAJOR CHANGE, the system recovery script has to change!
+	+ Change -r option to delete recovery.* files that reference non-
+	  existent vi.* files.
+	+ Rework recovery locking so that fcntl(2) locking will work.
+	+ Fix append (upper-case) buffers, broken by cut fixes.
+	+ Fix | to not set the absolute motion mark.
+	+ Read $HOME/.exrc file on startup if the effective user ID is
+	  root.  This makes running vi while su(1)'d work correctly.
+	+ Use the full pathname of the file as the recovery name, not
+	  just the last component.  Matches historic practice.
+	+ Keep marks in empty files from being destroyed.
+	+ Block all caught signals before calling the DB routines.
+	+ Make the line change report match historic practice (yanked
+	  lines were different than everything else).
+	+ Add section on multiple screens to the reference manual.
+	+ Display all messages at once, combine onto a single line if
+	  possible.  Delete the trailing period from all messages.
+1.20 -> 1.21: Thu May 19 12:21:58 1994
+	+ Delete the -l flag from the recover mail.
+	+ Send the user email if ex command :preserve executed, this matches
+	  historic practice.  Lots of changes to the preserve and recovery
+	  code, change preserve to snapshot files (again, historic practice).
+	+ Make buffers match historic practice: "add logically stores text
+	  into buffer a, buffer 1, and the unnamed buffer.
+	+ Print <tab> characters as ^I on the colon command line if the
+	  list option set.
+	+ Adjust ^F and ^B scroll values in the presence of split screens
+	  and small windows.
+	+ Break msg* routines out from util.c into msg.c, start thinking
+	  about message catalogs.
+	+ Add tildeop set option, based on stevie's option of the same name.
+	  Changes  the ~ command into "[count] ~ motion", i.e. ~ takes a
+	  trailing motion.
+	+ Chose NOT to match historic practice on cursor positioning after
+	  consecutive undo commands on a single line; see vi/v_undo.c for
+	  the comment.
+	+ Add a one line cache so that multiple changes to the same line
+	  are only counted once (e.g. "dl35p" changes one line, not 35).
+	+ Rework signals some more.  Block file sync signals in vi routines
+	  that interface to DB, so can sync the files at interrupt time.
+	  Write up all of the signal handling arguments, see signal.c.
+1.19 -> 1.20: Thu May  5 19:24:57 1994
+	+ Return ^Z to synchronous handling.  See the dicussion in signal.c
+	  and svi_screen.c:svi_curses_init().
+	+ Fix bug where line change report was wrong in util.c:msg_rpt().
+1.18 -> 1.19: Thu May  5 12:59:51 1994
+	+ Block DSUSP so that ^Y isn't delivered at SIGTSTP.
+	+ Fix bug -- put into an empty file leaves the cursor at 1,0,
+	  not the first nonblank.
+	+ Fix bug were number of lines reported for the 'P' command was
+	  off-by-one.
+	+ Fix bug were 0^D wasn't being handled correctly.
+	+ Delete remnants of ^Z as a raw character.
+	+ Fix bug where if a map was an entire colon command, it may never
+	  have been displayed.
+	+ Final cursor position fixes for the vi T and t commands.
+	+ The ex :next command took an optional ex command as it's first
+	  argument similar to the :edit commands.  Match historic practice.
+1.17 -> 1.18: Wed May  4 13:57:10 1994
+	+ Rework curses information in the PORT/Makefile's.
+	+ Minor fixes to ^Z asynchronous code.
+1.16 -> 1.17: Wed May  4 11:15:56 1994
+	+ Make ex comment handling match historic practice.
+	+ Make ^Z work asynchronously, we can no longer use the SIGTSTP
+	  handler in the curses library.
+1.15 -> 1.16: Mon May  2 19:42:07 1994
+	+ Make the 'p' and 'P' commands support counts, i.e. "Y10p" works.
+	+ Make characters that map to themselves as the first part of the
+	  mapping work, it's historic practice.
+	+ Fix bug where "s/./\& /" discarded the space in the replacement
+	  string.
+	+ Add support for up/down cursor arrows in text input mode, rework
+	  left/right support to match industry practice.
+	+ Fix bug were enough character remapping could corrupt memory.
+	+ Delete O_REMAPMAX in favor of setting interrupts after N mapped
+	  characters without a read, delete the map counter per character.
+	  MAJOR CHANGE.  All of the interrupt signal handling has been
+	  reworked so that interrupts are always turned on instead of
+	  being turned on periodically, when an interruptible operation is
+	  pending.
+	+ Fix bug where vi wait() was interrupted by the recovery alarm.
+	+ Make +cmd's and initial commands execute with the current line
+	  set to the last line of the file.  This is historic practice.
+	+ Change "lock failed" error message to a file status message.
+	  It always fails over NFS, and making all NFS files readonly
+	  isn't going to fly.
+	+ Use the historic line number format, but check for overflow.
+	+ Fix bug where vi command parser ignored buffers specified as
+	  part of the motion command.
+	+ Make [@*]buffer commands on character mode buffers match historic
+	  practice.
+	+ Fix bug where the cmap/chf entries of the tty structure weren't
+	  being cleared when new characters were read.
+	+ Fix bug where the default command motion flags were being set
+	  when the command was a motion component.
+	+ Fix wrapmargin bug; if appending characters, and wrapmargin breaks
+	  the line, an additional space is eaten.
+1.14 -> 1.15: Fri Apr 29 07:44:57 1994
+	+ Make the ex delete command work in any empty file.
+	+ Fix bug where 't' command placed the cursor on the character
+	  instead of to its left.
+	+ ^D and ^U didn't set the scroll option value historically.
+	  Note, this change means that any user set value (e.g. 15^D)
+	  will be lost when splitting the screen, since the split code
+	  now resets the scroll value regardless.
+	+ Fix the ( command to set the absolute movement mark.
+	+ Only use TIOCGWINSZ for window information if SIGWINCH signal
+	  caught.
+	+ Delete the -l flag, and make -r work for multiple arguments.
+	  Add the ex "recover[!] file" command.
+	+ Switch into ex terminal mode and use the sex routines when
+	  append/change/insert called from vi mode.
+	+ Make ^F and ^B match historic practice.  This required a fairly
+	  extensive rework of the svi scrolling code.
+	+ Cursor positioning in H, M, L, G (first non-blank for 1G) wasn't
+	  being done correctly.  Delete the SETLFNB flag.  H, M, and L stay
+	  logical movements (SETNNB) and G always moves to the first nonblank.
+	+ System V uses "lines" and "cols", not "li" and "co", change as
+	  necessary.  Check termcap function returns for errors.
+	+ Fix `<character> command to do start/end of line correction,
+	  and to set line mode if starting and stopping at column 0.
+	+ Fix bug in delete code where dropped core if deleted in character
+	  mode to an empty line.  (Rework the delete code for efficiency.)
+	+ Give up on SunOS 4.1.X, and use "cc" instead of /usr/5bin/cc.
+	+ Protect ex_getline routine from interrupted system calls (if
+	  possible, set SA_RESTART on SIGALRM, too).
+	+ Fix leftright scrolling bug, when moving to a shorter line.
+	+ Do validity checking on the copy, move, t command target line
+	  numbers.
+	+ Change for System V % pattern broke trailing flags for empty
+	  replacement strings.
+	+ Fix bug when RCM flags retained in the saved dot structure.
+	+ Make the ex '=' command work for empty files.
+	+ Fix bug where special_key array was being free'd (it's no longer
+	  allocated).
+	+ Matches cut in line mode only if the starting cursor is at or
+	  before the first nonblank in its line, and the ending cursor is
+	  at or after the last nonblank in its line.
+	+ Add the :wn command, so you can write a file and switch to a new
+	  file in one command.
+	+ Allow only a single key as an argument to :viusage.
+	+ New movement code broke filter/paragraph operations in empty
+	  files ("!}date" in an empty file was dropping core).
+1.12 -> 1.14: Mon Apr 18 11:05:10 1994 (PUBLICLY AVAILABLE VERSION, 4.4BSD)
+	+ Fix FILE structure leakage in the ex filter code.
+	+ Rework suspend code for System V curses.  Nvi has to do the
+	  the work, there's no way to get curses to do it right.
+	+ Revert SunOS 4.1.X ports to the distributed curses.  There's
+	  a bug in Sun's implementation that we can't live with.
+	+ Quit immediately if row/column values are unreasonable.
+	+ Fix the function keys to match vi historic behavior.
+	+ Replace the echo/awk magic in the Makefile's with awk scripts.
+1.11 -> 1.12: Thu Apr 14 11:10:19 1994
+	+ Fix bug where only the first vi key was checked for validity.
+	+ Make 'R' continue to overwrite after a <carriage-return>.
+	+ Only display the "no recovery" message once.
+	+ Rework line backup code to restore the line to its previous
+	  condition.
+	+ Don't permit :q in a .exrc file or EXINIT variable.
+	+ Fix wrapscan option bug where forward searches become backward
+	  searches and do cursor correction accordingly.
+	+ Change "dd" to move the cursor to the first non-blank on the line.
+	+ Delete cursor attraction to the first non-blank, change non-blank
+	  motions to set the most attractive cursor position instead.
+	+ Fix 'r' substitute option to set the RE to the last RE, not the
+	  last substitute RE.
+	+ Fix 'c' and 'g' substitute options to always toggle, and fix
+	  edcompatible option to not reset them.
+	+ Display ex error messages in inverse video.
+	+ Fix errorbells option to match historic practice.
+	+ Delete fixed character display table in favor of table built based
+	  on the current locale.
+	+ Add ":set octal" option, that displays unknown characters as octal
+	  values instead of the default hexadecimal.
+	+ Make all command and text input modes interruptible.
+	+ Fix ex input mode to display error messages immediately, instead
+	  of waiting for the lines to be resolved.
+	+ Fix bug where vi calling append could overwrite the command.
+	+ Fix off-by-one in the ex print routine tab code.
+	+ Fix incorrect ^D test in vi text input routines.
+	+ Add autoindent support for ex text insert routines.
+	+ Add System V substitute command replacement pattern semantics,
+	  where '%' means the last replacement pattern.
+	+ Fix bug that \ didn't escape newlines in ex commands.
+	+ Regularize the names of special characters to CH_*.
+	+ Change hex insert character from ^Vx<hex_char> to ^X<hex_char>
+	+ Integrate System V style curses, so SunOS and Solaris ports can
+	  use the native curses implementation.
+1.10 -> 1.11: Thu Mar 24 16:07:45 EST 1994 (PUBLICLY AVAILABLE VERSION)
+	+ Change H, M, and L to set the absolute mark, historical practice.
+	+ Fix bug in stepping through multiple tags files.
+	+ Add "remapmax" option that turns off map counts so you can remap
+	  infinitely.  If it's off, term_key() can be interrupted from the
+	  keyboard, which will cause the buffers to flush.  I also dropped
+	  the default max number of remaps to 50.  (Only Dave Hitz's TM
+	  macros and maze appear to go over that limit.)
+	+ Change :mkexrc to not dump w{300,1200,9600}, lisp options.
+	+ Fix backward search within a line bug.
+	+ Change all the includes of "pathnames.h" to use <>'s so that the
+	  PORT versions can use -I. to replace it with their own versions.
+	+ Make reads and writes interruptible.  Rework code that enters and
+	  leaves ex for '!' and filter commands, rework all interrupt and
+	  timer code.
+	+ Fix core dump when user displayed option in .exrc file.
+	+ Fix bug where writing empty files didn't update the saved 
+	  modification time.
+	+ Fix bug where /pattern/ addressing was always a backward search.
+	+ Fix bug triggered by autoindent of more than 32 characters, where
+	  nvi wasn't checking the right TEXT length.
+	+ Fix bug where joining only empty lines caused a core dump.
+1.09 -> 1.10: Sat Mar 19 15:40:29 EST 1994
+	+ Fix "set all" core dump.
+1.08 -> 1.09: Sat Mar 19 10:11:14 EST 1994
+	+ If the tag's file path is relative, and it doesn't exist, check
+	  relative to the tag file location.
+	+ Fix ~ command to free temporary buffer on error return.
+	+ Create vi.ref, a first cut at a reference document for vi.
+	  The manual page and the reference document only document the
+	  set options, so far.
+	+ Fix 1G bug not always going to the first non-blank.
+	+ Upgrade PORT/regex to release alpha3.4, from Henry Spencer.
+	+ Add MKS vi's "cdpath" option, supporting a cd search path.
+	+ Handle if search as a motion was discarded, i.e. "d/<erase>".
+	+ Change nvi to not create multiple recovery files if modifying
+	  a recovered file.
+	+ Decide to ignore that the cursor is before the '$' when inserting
+	  in list mode.  It's too hard to fix.
+1.07 -> 1.08: Wed Mar 16 07:37:36 EST 1994
+	+ Leftright and big line scrolling fixes.  This meant more changes
+	  to the screen display code, so there may be new problems.
+	+ Don't permit search-style addresses until a file has been read.
+	+ "c[Ww]" command incorrectly handled the "in whitespace" case.
+	+ Fix key space allocation bug triggered by cut/paste under SunOS.
+	+ Ex move command got the final cursor position wrong.
+	+ Delete "optimize option not implemented" message.
+	+ Make the literal-next character turn off mapping for the next
+	  character in text input mode.
+1.06 -> 1.07: Mon Mar 14 11:10:33 EST 1994
+	+ The "wire down" change in 1.05 broke ex command parsing, there
+	  wasn't a corresponding change to handle multiple K_VLNEXT chars.
+	+ Fix final position for vi's 't' command.
+1.05 -> 1.06: Sun Mar 13 16:12:52 EST 1994
+	+ Wire down ^D, ^H, ^W, and ^V, regardless of the user's termios
+	  values.
+	+ Add ^D as the ex scroll command.
+	+ Support ^Q as a literal-next character.
+	+ Rework abbreviations to be delimited by any !inword() character.
+	+ Add options description to the manual page.
+	+ Minor screen cache fix for svi_get.c.
+	+ Rework beautify option support to match historical practice.
+	+ Exit immediately if not reading from a tty and a command fails.
+	+ Default the SunOS 4.* ports to the distributed curses, not SMI's.
+1.04 -> 1.05: Thu Mar 24 16:07:45 EST 1994
+	+ Make cursor keys work in input mode.
+	+ Rework screen column code in vi curses screen.  MAJOR CHANGE --
+	  after this, we'll be debugging curses screen presentation from
+	  scratch.
+	+ Explode include files in vi.h into the source files.
+1.03 -> 1.04: Sun Mar  6 14:14:16 EST 1994
+	+ Make the ex move command keep the marks on the moved lines.
+	+ Change resize semantics so you can set the screen size to a
+	  specific value.  A couple of screen fixes for the resize code.
+	+ Fixes for foreground/background due to SIGWINCH.
+	+ Complete rework of all of vi's cursor movements.  The underlying
+	  assumption in the old code was that the starting cursor position
+	  was part of the range of lines cut or deleted.  The command
+	  "d[[" is an example where this isn't true.  Change it so that all
+	  motion component commands set the final cursor position separately
+	  from the range, as it can't be done correctly later.  This is a
+	  MAJOR CHANGE -- after this change, we'll be debugging the cursor
+	  positioning from scratch.
+	+ Rewrite the B, b, E, e commands to use vi's getc() interface
+	  instead of rolling their own.
+	+ Add a second MARK structure, LMARK, which is the larger mark
+	  needed by the logging and mark queue code.  Everything else uses
+	  the reworked MARK structure, which is simply a line/column pair.
+	+ Rework cut/delete to not expect 1-past-the-end in the range, but
+	  to act on text to the end of the range, inclusive.
+	+ Sync on write's, to force NFS to flush.
+1.01 -> 1.03: Sun Jan 23 17:50:35 EST 1994 (PUBLICLY AVAILABLE VERSION)
+	+ Tag stack fixes, was returning to the tag, not the position from
+	  which the user tagged.
+	+ Only use from the cursor to the end of the word in cursor word
+	  searches and tags.  (Matches historical vi behavior.)
+	+ Fix delete-last-line bug when line number option set.
+	+ Fix usage line for :split command.
+	+ If O_NUMBER set, long input lines would eventually fail, the column
+	  count for the second screen of long lines wasn't set correctly.
+	+ Fix for [[ reaching SOF with a column longer than the first line.
+	+ Fix for multiple error messages if no screen displayed.
+	+ Fix :read to set alternate file name as in historical practice.
+	+ Fix cut to rotate the numeric buffers if line mode flag set.
+1.00 -> 1.01: Wed Jan 12 13:37:18 EST 1994
+	+ Don't put cut items into numeric buffers if cutting less than
+	  parts of two lines.
+0.94 -> 1.00: Mon Jan 10 02:27:27 EST 1994
+	+ Read-ahead not there; BSD tty driver problem, SunOS curses
+	  problem.
+	+ Global command could error if it deleted the last line of
+	  the file.
+	+ Change '.' to only apply to the 'u' if entered immediately
+	  after the 'u' command.  "1pu.u.u. is still broken, but I
+	  expect that it's going to be sacrificed for multiple undo.
+	+ If backward motion on a command, now move to the point; get
+	  yank cursor positioning correct.
+	+ Rework cut buffers to match historic practice -- yank/delete
+	  numeric buffers redone sensibly, ignoring historic practice.
+0.92 -> 0.93: Mon Dec 20 19:52:14 EST 1993
+	+ Christos Zoulas reimplemented the script windows using pty's,
+	  which means that they now work reasonably.   The down side of
+	  this is that almost all ports other than 4.4BSD need to include
+	  two new files, login_tty.c and pty.c from the PORT/clib directory.
+	  I've added them to the Makefiles.
+	+ All calloc/malloc/realloc functions now cast their pointers, for
+	  SunOS -- there should be far fewer warning messages, during the
+	  build.  The remaining messages are where CHAR_T's meet char *'s,
+	  i.e. where 8-bit clean meets strcmp.
+	+ The user's argument list handling has been reworked so that there
+	  is always a single consistent position for use by :next, :prev and
+	  :rewind.
+	+ All of the historical options are now at least accepted, although
+	  not all of them are implemented.   (Edcompatible, hardtabs, lisp,
+	  optimize, redraw, and slowopen aren't implemented.)
+	+ The RE's have been reworked so that matches of length 0 are handled
+	  in the same way as vi used to handle them.
+	+ Several more mapping fixes and ex parser addressing fixes.