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freebsd-src/bin/ed
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Rodney W. Grimes 2162b2d226 Remove trailing whitespace. 
Reviewed by:	phk
1995-05-30 00:07:29 +00:00
..
test Added $Id$ 1994-09-24 02:59:15 +00:00
buf.c Remove trailing whitespace. 1995-05-30 00:07:29 +00:00
cbc.c You will find enclosed some changes to make gcc -Wall more happy in 1995-03-19 13:29:28 +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 Remove trailing whitespace. 1995-05-30 00:07:29 +00:00
io.c You will find enclosed some changes to make gcc -Wall more happy in 1995-03-19 13:29:28 +00:00
main.c Remove trailing whitespace. 1995-05-30 00:07:29 +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 Remove trailing whitespace. 1995-05-30 00:07:29 +00:00
README Added $Id$ 1994-09-24 02:59:15 +00:00
sub.c Remove trailing whitespace. 1995-05-30 00:07:29 +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.