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History

Pedro F. Giffuni 8123f597e9 ed(1): switch two statements so we check the index before dereferencing. This is related to r270256 but was missed in that occasion. MFC after: 3 days		2016-04-26 14:31:48 +00:00
..
test
buf.c
cbc.c	ed(1): switch two statements so we check the index before dereferencing.	2016-04-26 14:31:48 +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	ed(1): Prevent possible string overflows	2015-12-18 23:05:36 +00:00
Makefile	Explicitly add unmarked bin/ binaries to the runtime package.	2016-02-09 16:58:50 +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.