initial import of less290
import of less 321
less 322.
oops, this is less 332, not 322.
oops, missed this part of less all this time.
less 335
less 358
less 374
import less 381. changes:
v375   4/7/02   Fix searching for SGR sequences; fix SECURE build;
                add SGR support to DJGPP version (thanks to Eli Zaretskii).
v376  6/10/02   Fix bug in overstriking mulitbyte UTF-8 characters
                (thanks to Jungshik Shin).
                Posted to Web page.
-----------------------------------------------------------------
v377  9/10/02   Fix bug in Windows version when file contains CR;
                fix bug in search highlights with -R;
                make initial buffer limit really be 64K not unlimited.
v378  9/30/02   Misc bug fixes and compiler warning cleanup.
                Posted to Web page.
-----------------------------------------------------------------
v379 11/23/02   Add -L option; fix bug with ctrl-K in lesskey files;
                improve UTF-8 overstriking and underscore overstriking;
                fix minor man page problems; change to autoconf 2.54.
v380 11/24/02   Make LINENUM same as POSITION.
v381 11/28/02   Make -N use 7 columns for line number if possible.
import less 394.  this includes these changes:


* Add history file to save search and shell command history between
  invocations of less.

* Improve behavior of history list for search and shell commands.

* Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C.

* Improve handling of UTF-8 files and commands, including better
  line wrapping and handling double-width chars.

* Added LESSUTFBINFMT environment variable to control display of
  non-printable characters in a UTF-8 file.

* Add --with-secure option to configure, to make it easier to
  build a secure version of less.

* Show search matches in the status column even if search highlights
  are disabled via the -G option or the ESC-u command.

* Improve performance when the file contains very long lines.

* Add "windows" charset.

* Add man page for lessecho.

* Add support for erase2 character, treated same as erase.

* Use ASCII lowercase/uppercase logic when operating on the command line.

* Update makefile for Borland C++ 5.5.1.

* Fix bug in calculating number of pages for %D prompt.

* Fix bug in handling tag file error.

* Fix obscure bug if input file is deleted while viewing help.

* Fix bug handling filenames which include square brackets.

* Fix possible buffer overflow in "global" tag search.

* Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE.

* Fix buffer overflow in reverse search.

* Removed some old copyrighted code.
  This probably breaks OS/9 support.
import less 394.  this includes these changes:


* Add history file to save search and shell command history between
  invocations of less.

* Improve behavior of history list for search and shell commands.

* Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C.

* Improve handling of UTF-8 files and commands, including better
  line wrapping and handling double-width chars.

* Added LESSUTFBINFMT environment variable to control display of
  non-printable characters in a UTF-8 file.

* Add --with-secure option to configure, to make it easier to
  build a secure version of less.

* Show search matches in the status column even if search highlights
  are disabled via the -G option or the ESC-u command.

* Improve performance when the file contains very long lines.

* Add "windows" charset.

* Add man page for lessecho.

* Add support for erase2 character, treated same as erase.

* Use ASCII lowercase/uppercase logic when operating on the command line.

* Update makefile for Borland C++ 5.5.1.

* Fix bug in calculating number of pages for %D prompt.

* Fix bug in handling tag file error.

* Fix obscure bug if input file is deleted while viewing help.

* Fix bug handling filenames which include square brackets.

* Fix possible buffer overflow in "global" tag search.

* Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE.

* Fix buffer overflow in reverse search.

* Removed some old copyrighted code.
  This probably breaks OS/9 support.