freebsd

mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00

History

Jens Schweikhardt 9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, especially in troff files.		2003-01-01 18:49:04 +00:00
..
test
buf.c	Consistently use __FBSDID	2002-06-30 05:13:54 +00:00
cbc.c	Fix some easy WARNS.	2002-07-31 16:52:16 +00:00
ed.1	mdoc(7) police: a bit of tidying.	2002-07-04 13:22:22 +00:00
ed.h	Fix some easy WARNS.	2002-07-31 16:52:16 +00:00
glbl.c	Consistently use __FBSDID	2002-06-30 05:13:54 +00:00
io.c	Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,	2003-01-01 18:49:04 +00:00
main.c	Replace various spellings with FALLTHROUGH which is lint()able	2002-08-25 13:01:47 +00:00
Makefile	-lcipher is an installable library.	2001-12-06 10:50:23 +00:00
POSIX
re.c	Consistently use __FBSDID	2002-06-30 05:13:54 +00:00
README
sub.c	Consistently use __FBSDID	2002-06-30 05:13:54 +00:00
undo.c	Consistently use __FBSDID	2002-06-30 05:13:54 +00:00

README

$FreeBSD$

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.