freebsd

mirror of https://git.FreeBSD.org/src.git synced 2024-12-16 10:20:30 +00:00

History

Andrew Moore c723083073 fixed `s' to set dot to last line affected, not the last line in a substitution range.		1995-01-14 11:47:16 +00:00
..
test	Added $Id$	1994-09-24 02:59:15 +00:00
buf.c	Added $Id$	1994-09-24 02:59:15 +00:00
cbc.c	Added $Id$	1994-09-24 02:59:15 +00:00
ed.1	Added $Id$	1994-09-24 02:59:15 +00:00
ed.h	Nuked #ifdef __386BSD__ since this is not appropriate and no longer defined	1994-11-03 21:46:55 +00:00
glbl.c	Added $Id$	1994-09-24 02:59:15 +00:00
io.c	Added $Id$	1994-09-24 02:59:15 +00:00
main.c	Added $Id$	1994-09-24 02:59:15 +00:00
Makefile	src/bin/ed will never build DES encumbered ed again. That is the job	1994-12-18 15:15:10 +00:00
POSIX	Added $Id$	1994-09-24 02:59:15 +00:00
re.c	Added $Id$	1994-09-24 02:59:15 +00:00
README	Added $Id$	1994-09-24 02:59:15 +00:00
sub.c	fixed `s' to set dot to last line affected, not the last line in	1995-01-14 11:47:16 +00:00
undo.c	Added $Id$	1994-09-24 02:59:15 +00:00

README

$Id$

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.