freebsd

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History

Ruslan Ermilov a89237ae95 Sync program's usage() with manpage's SYNOPSIS.		2005-02-09 17:37:39 +00:00
..
test
buf.c	Consistently use __FBSDID	2002-06-30 05:13:54 +00:00
cbc.c	Remove clause 3 from the UCB licenses.	2004-04-06 20:06:54 +00:00
ed.1	Add the new standard EXIT STATUS section where appropriate.	2005-01-16 16:41:59 +00:00
ed.h	/*- or .\"- or #- to begin license clauses.	2005-01-10 08:39:26 +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	Sync program's usage() with manpage's SYNOPSIS.	2005-02-09 17:37:39 +00:00
Makefile	NOCRYPT -> NO_CRYPT	2004-12-21 10:16:04 +00:00
POSIX	Locale support was added by ache long ago.	2000-07-17 10:40:48 +00:00
re.c	Make this code WARNS=6 clean again (after GCC 3.1.1 import).	2003-07-20 10:24:09 +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.