NetBSD/bin/ed
christos 07c9f4f644 remove redundant declaration of errmsg 2001-01-07 05:41:20 +00:00
..
test
Makefile Add MK... variables to enable/disable various aspects of building 2000-06-23 06:01:10 +00:00
POSIX
README
buf.c
cbc.c
ed.1 be consistent with man page xrefs (this is a pre mandoc man page) 2000-11-07 01:45:49 +00:00
ed.h remove redundant declaration of errmsg 2001-01-07 05:41:20 +00:00
glbl.c
io.c
main.c
re.c
sub.c
undo.c

README

$NetBSD: README,v 1.9 1995/03/21 09:04:33 cgd Exp $

ed is an 8-bit-clean, POSIX-compliant line editor.  It should work with
any regular expression package that conforms to the POSIX interface
standard, such as GNU regex(3).

If reliable signals are supported (e.g., POSIX sigaction(2)), it should
compile with little trouble.  Otherwise, the macros SPL1() and SPL0()
should be redefined to disable interrupts.

The following compiler directives are recognized:
DES		- to add encryption support (requires crypt(3))
NO_REALLOC_NULL	- if realloc(3) does not accept a NULL pointer
BACKWARDS	- for backwards compatibility
NEED_INSQUE	- if insque(3) is missing

The file `POSIX' describes extensions to and deviations from the POSIX
standard.

The ./test directory contains regression tests for ed. The README
file in that directory explains how to run these.

For a description of the ed algorithm, see Kernighan and Plauger's book
"Software Tools in Pascal," Addison-Wesley, 1981.