freebsd-skq/bin/ed
pfg 872b698bd4 General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
..
test
buf.c ed(1): drop redundant parenthesis. 2016-12-14 21:14:43 +00:00
cbc.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
ed.1 Remove bdes(1) 2017-02-06 08:27:19 +00:00
ed.h ed(1): Prevent possible overflows during allocation. 2016-12-12 03:46:40 +00:00
glbl.c ed(1): Prevent possible overflows during allocation. 2016-12-12 03:46:40 +00:00
io.c Close the input FILE * in read_file() and the output FILE * in write_file() 2016-05-25 18:38:30 +00:00
main.c ed(1): Allow the omission of one address in (.,.) and (.;.) address ranges 2017-07-03 15:54:44 +00:00
Makefile Revert crap accidentally committed 2017-01-28 16:31:23 +00:00
Makefile.depend DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
POSIX
re.c Fix a -Wunsequenced warning. 2013-06-29 15:49:26 +00:00
README
sub.c Fix warnings found by -Wmising-variable-declarations. 2012-10-19 05:43:38 +00:00
undo.c Fix warnings found by -Wmising-variable-declarations. 2012-10-19 05:43:38 +00:00

$FreeBSD$

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.