NetBSD/bin/ed
alm 79b13f93c3 corrected return type 1993-07-02 10:05:24 +00:00
..
test Clean up deleted files. 1993-07-02 10:02:52 +00:00
Makefile fixed undo within a global command (would corrupt the buffer) 1993-07-02 10:02:26 +00:00
POSIX fixed undo within a global command (would corrupt the buffer) 1993-07-02 10:02:26 +00:00
README fixed regex initialization 1993-06-16 07:36:51 +00:00
buf.c fixed undo within a global command (would corrupt the buffer) 1993-07-02 10:02:26 +00:00
cbc.c added support for lines of arbitrary length 1993-05-08 10:49:52 +00:00
ed.1 fixed undo within a global command (would corrupt the buffer) 1993-07-02 10:02:26 +00:00
ed.c corrected return type 1993-07-02 10:05:24 +00:00
ed.h corrected return type 1993-07-02 10:05:24 +00:00
re.c fixed undo within a global command (would corrupt the buffer) 1993-07-02 10:02:26 +00:00

README

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:
GNU_REGEX	- use with GNU regex(3)
DES		- use to add encryption support (requires crypt(3))
NO_REALLOC_NULL	- use if realloc(3) does not accept a NULL pointer
BACKWARDS	- use for backwards compatibility

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.