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History

Simon J. Gerraty ccfb965433 Add META_MODE support. Off by default, build behaves normally. WITH_META_MODE we get auto objdir creation, the ability to start build from anywhere in the tree. Still need to add real targets under targets/ to build packages. Differential Revision: D2796 Reviewed by: brooks imp		2015-06-13 19:20:56 +00:00
..
test
buf.c
cbc.c	Always check the limits of array index variables before using them.	2014-08-21 02:40:33 +00:00
ed.1	mdoc: escape Re	2015-04-26 10:03:05 +00:00
ed.h
glbl.c	ed(1): Fix [-Werror=logical-not-parentheses]	2015-04-20 02:07:57 +00:00
io.c
main.c
Makefile	Convert bin/ to LIBADD, reduce overlinking allow to build all components as	2014-11-25 11:15:40 +00:00
Makefile.depend	Add META_MODE support.	2015-06-13 19:20:56 +00:00
POSIX
re.c
README
sub.c
undo.c

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.