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freebsd-skq/bin/ed
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ed af31e8843c More -Wmissing-variable-declarations fixes. 
In addition to adding `static' where possible:

- bin/date: Move `retval' into extern.h to make it visible to date.c.
- bin/ed: Move globally used variables into ed.h.
- sbin/camcontrol: Move `verbose' into camcontrol.h and fix shadow warnings.
- usr.bin/calendar: Remove unneeded variables.
- usr.bin/chat: Make `line' local instead of global.
- usr.bin/elfdump: Comment out unneeded function.
- usr.bin/rlogin: Use _Noreturn instead of __dead2.
- usr.bin/tset: Pull `Ospeed' into extern.h.
- usr.sbin/mfiutil: Put global variables in mfiutil.h.
- usr.sbin/pkg: Remove unused `os_corres'.
- usr.sbin/quotaon, usr.sbin/repquota: Remove unused `qfname'.
2012-10-19 14:49:42 +00:00
..
test
buf.c More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
cbc.c Fix warnings found by -Wmising-variable-declarations. 2012-10-19 05:43:38 +00:00
ed.1
ed.h More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
glbl.c Fix warnings found by -Wmising-variable-declarations. 2012-10-19 05:43:38 +00:00
io.c More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
main.c Fix warnings found by -Wmising-variable-declarations. 2012-10-19 05:43:38 +00:00
Makefile Add build option MK_ED_CRYPTO to control whether ed(1) is to have the 2012-05-19 17:55:49 +00:00
POSIX Fix some typos under bin/ 2011-05-22 14:03:46 +00:00
re.c More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +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

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.