# $Id: README,v 9.2 2015/04/08 17:18:56 zy Exp $
This is version 2.1.3 (2015-04-08) of nex/nvi, a reimplementation of the ex/vi
text editors originally distributed as part of the Fourth Berkeley
Software Distribution (4BSD), by the University of California, Berkeley.
The directory layout is as follows:
LICENSE ....... Copyright, use and redistribution information.
README ........ This file.
build ......... Build directory.
catalog ....... Message catalogs; see catalog/README.
cl ............ Vi interface to the curses(3) library.
common ........ Code shared by ex and vi.
docs .......... Ex/vi documentation, both current and historic.
ex ............ Ex source code.
regex ......... Modified regex library with wide character support.
vi ............ Vi source code.
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o Nvi was written by Keith Bostic, and the last version is 1.79. After that,
Sven Verdoolaege added the iconv support and the DB3 locking.
Jun-ichiro itojun Hagino developed the file encoding detection
techniques in his nvi-m17n.
The following acknowledgments were written by Keith Bostic:
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o This software is several years old and is the product of many folks' work.
This software was originally derived from software contributed to
the University of California, Berkeley by Steve Kirkendall, the
author of the vi clone elvis. Without his work, this work would
have been far more difficult.
IEEE POSIX 1003.2 style regular expression support is courtesy of
Henry Spencer, for which I am *very* grateful.
Elan Amir did the original 4BSD curses work that made it possible
to support a full-screen editor using curses.
George Neville-Neil added the Tcl interpreter, and the initial
interpreter design was his.
Sven Verdoolaege added the Perl interpreter.
Rob Mayoff provided the original Cscope support.
o Many, many people suggested enhancements, and provided bug reports and
testing, far too many to individually thank.
o From the original vi acknowledgements, by William Joy and Mark Horton:
Bruce Englar encouraged the early development of this display
editor. Peter Kessler helped bring sanity to version 2's
command layout. Bill Joy wrote versions 1 and 2.0 through 2.7,
and created the framework that users see in the present editor.
Mark Horton added macros and other features and made the editor
work on a large number of terminals and Unix systems.
o And...
The financial support of UUNET Communications Services is gratefully
acknowledged.
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