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c1564db05d
freebsd-skq/bin/sh
History
Jilles Tjoelker c1564db05d sh: Recognize "--" in . and exec. 
Although "--" historically has not been required to be recognized for
certain special builtins that do not take options in POSIX, some other
implementations recognize options for them, requiring scripts to use "--" or
avoid operands starting with "-".

Operands starting with "-" can be avoided with eval by prepending a space,
and cannot occur with break, continue, exit, return and shift as they only
take numbers, nor with times as it does not take operands. With . and exec,
avoiding "-" is not so easy as it may require reimplementing the PATH
search; therefore the current proposal for POSIX is to require recognition
of "--" for them.

We continue to accept other strings starting with "-" as operands to . and
exec, and also "--" if it is alone to . (which would otherwise be invalid
anyway).
2010-05-28 22:40:24 +00:00
..
bltin
funcs
alias.c sh: Constify various strings. 2009-12-24 18:41:14 +00:00
alias.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
arith_lex.l sh: Use stalloc for arith variable names. 2010-04-25 20:43:19 +00:00
arith.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
arith.y sh: Use stalloc for arith variable names. 2010-04-25 20:43:19 +00:00
builtins.def
cd.c sh: On startup of the shell, use PWD from the environment if it is valid. 2010-04-17 14:35:46 +00:00
cd.h sh: On startup of the shell, use PWD from the environment if it is valid. 2010-04-17 14:35:46 +00:00
error.c sh: Fix some bugs with backquoted builtins: 2010-01-01 18:17:46 +00:00
error.h sh: Add some __dead2 to indicate functions that do not return. 2009-12-24 20:55:14 +00:00
eval.c sh: Recognize "--" in . and exec. 2010-05-28 22:40:24 +00:00
eval.h sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
exec.c sh: Improve the command builtin: 2010-03-06 16:57:53 +00:00
exec.h sh: Improve the command builtin: 2010-03-06 16:57:53 +00:00
expand.c sh: Fix pathname expansion with quoted slashes like *\/. 2010-05-11 23:19:28 +00:00
expand.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
histedit.c sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
init.h
input.c sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
input.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
jobs.c sh: Reap any zombies before forking for a background command. 2010-05-24 10:35:57 +00:00
jobs.h
mail.c sh: Constify various strings. 2009-12-24 18:41:14 +00:00
mail.h
main.c sh: Recognize "--" in . and exec. 2010-05-28 22:40:24 +00:00
main.h sh: Do not run callers' exception handlers in subshells. 2009-12-25 20:21:35 +00:00
Makefile
memalloc.c sh: Constify various strings. 2009-12-24 18:41:14 +00:00
memalloc.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
miscbltin.c sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
mkbuiltins sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
mkinit.c sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
mknodes.c sh: Fix crash with empty functions (f() { }) introduced in r196483 2009-08-28 22:41:25 +00:00
mksyntax.c sh: Partially revert r206146, allowing double-quotes in arithmetic. 2010-04-11 12:24:47 +00:00
mktokens
myhistedit.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
mystring.c sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
mystring.h
nodes.c.pat sh: Fix crash with empty functions (f() { }) introduced in r196483 2009-08-28 22:41:25 +00:00
nodetypes
options.c sh: Automatically enable -o emacs in interactive shells with terminals. 2010-04-05 14:15:51 +00:00
options.h sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
output.c sh: Constify various strings. 2009-12-24 18:41:14 +00:00
output.h sh: Fix some bugs with backquoted builtins: 2010-01-01 18:17:46 +00:00
parser.c sh: Partially revert r206146, allowing double-quotes in arithmetic. 2010-04-11 12:24:47 +00:00
parser.h sh: Various warning fixes (from WARNS=6 NO_WERROR=1): 2009-12-27 18:04:05 +00:00
redir.c Fix some cases where file descriptors from redirections leak to programs. 2009-11-29 22:33:59 +00:00
redir.h
sh.1 sh(1): Rework documentation of shell variables. 2010-05-24 15:12:12 +00:00
shell.h
show.c sh: Constify various strings. 2009-12-24 18:41:14 +00:00
show.h sh: Constify various strings. 2009-12-24 18:41:14 +00:00
TOUR
trap.c trap: do not consider a bad signal name a fatal error. 2009-11-21 20:44:34 +00:00
trap.h sh: Add some __dead2 to indicate functions that do not return. 2009-12-24 20:55:14 +00:00
var.c sh: Apply locale vars on builtins, recognize LC_MESSAGES as a locale var. 2010-05-05 21:48:40 +00:00
var.h sh: Apply locale vars on builtins, recognize LC_MESSAGES as a locale var. 2010-05-05 21:48:40 +00:00