freebsd-skq

History

Warner Losh 7669d0fc4f o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o gc some #ifdef sun ... #endif code Approved by: arch@, new style(9)		2002-02-02 06:36:49 +00:00
..
test
buf.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
cbc.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
ed.1	mdoc(7) police: join split punctuation to macro calls.	2001-08-10 17:35:21 +00:00
ed.h	o __P has been reoved	2002-02-02 06:36:49 +00:00
glbl.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
io.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
main.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
Makefile	-lcipher is an installable library.	2001-12-06 10:50:23 +00:00
POSIX	Locale support was added by ache long ago.	2000-07-17 10:40:48 +00:00
re.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
README
sub.c	o __P has been reoved	2002-02-02 06:36:49 +00:00
undo.c	o __P has been reoved	2002-02-02 06:36:49 +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.