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source: patches/bash-4.0-branch_update-6.patch@ 2557cb2

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Last change on this file since 2557cb2 was 8e00734, checked in by Jim Gifford <clfs@…>, 15 years ago
Updated Bash Branch Update Patch
Property mode set to `100644`
File size: 39.5 KB

Rev	Line
[c822ddc]	1	Submitted By: Jim Gifford (jim at cross-lfs dot org)
[8e00734]	2	Date: 07-22-2009
[c822ddc]	3	Initial Package Version: 4.0
	4	Origin: Upstream
	5	Upstream Status: Applied
[8e00734]	6	Description: Contains all upstream patches up to 4.0-028
[c822ddc]	7
	8	diff -Naur bash-4.0.orig/arrayfunc.c bash-4.0/arrayfunc.c
	9	--- bash-4.0.orig/arrayfunc.c 2009-01-04 11:32:21.000000000 -0800
[8e00734]	10	+++ bash-4.0/arrayfunc.c 2009-07-22 15:31:16.000000000 -0700
[c822ddc]	11	@@ -604,64 +604,7 @@
	12	}
	13	}
	14
	15	-/* This function assumes s[i] == '['; returns with s[ret] == ']' if
	16	- an array subscript is correctly parsed. */
	17	-int
	18	-skipsubscript (s, i)
	19	- const char *s;
	20	- int i;
	21	-{
	22	- int count, c;
	23	-#if defined (HANDLE_MULTIBYTE)
	24	- mbstate_t state, state_bak;
	25	- size_t slength, mblength;
	26	-#endif
	27	-
	28	-#if defined (HANDLE_MULTIBYTE)
	29	- memset (&state, '\0', sizeof (mbstate_t));
	30	- slength = strlen (s + i);
	31	-#endif
	32	-
	33	- count = 1;
	34	- while (count)
	35	- {
	36	- /* Advance one (possibly multibyte) character in S starting at I. */
	37	-#if defined (HANDLE_MULTIBYTE)
	38	- if (MB_CUR_MAX > 1)
	39	- {
	40	- state_bak = state;
	41	- mblength = mbrlen (s + i, slength, &state);
	42	-
	43	- if (MB_INVALIDCH (mblength))
	44	- {
	45	- state = state_bak;
	46	- i++;
	47	- slength--;
	48	- }
	49	- else if (MB_NULLWCH (mblength))
	50	- return i;
	51	- else
	52	- {
	53	- i += mblength;
	54	- slength -= mblength;
	55	- }
	56	- }
	57	- else
	58	-#endif
	59	- ++i;
	60	-
	61	- c = s[i];
	62	-
	63	- if (c == 0)
	64	- break;
	65	- else if (c == '[')
	66	- count++;
	67	- else if (c == ']')
	68	- count--;
	69	- }
	70	-
	71	- return i;
	72	-}
	73	+/* skipsubscript moved to subst.c to use private functions. 2009/02/24. */
	74
	75	/* This function is called with SUB pointing to just after the beginning
	76	`[' of an array subscript and removes the array element to which SUB
	77	diff -Naur bash-4.0.orig/builtins/declare.def bash-4.0/builtins/declare.def
	78	--- bash-4.0.orig/builtins/declare.def 2009-01-04 11:32:22.000000000 -0800
[8e00734]	79	+++ bash-4.0/builtins/declare.def 2009-07-22 15:31:12.000000000 -0700
[973b90d5]	80	@@ -295,6 +295,13 @@
[c822ddc]	81	subscript_start = (char *)NULL;
	82	if (t = strchr (name, '[')) /* ] */
	83	{
	84	+ /* If offset != 0 we have already validated any array reference */
	85	+ if (offset == 0 && valid_array_reference (name) == 0)
	86	+ {
	87	+ sh_invalidid (name);
	88	+ assign_error++;
	89	+ NEXT_VARIABLE ();
	90	+ }
	91	subscript_start = t;
	92	*t = '\0';
	93	making_array_special = 1;
[973b90d5]	94	@@ -484,7 +491,7 @@
[c822ddc]	95	}
	96	/* declare -a name[[n]] or declare name[n] makes name an indexed
	97	array variable. */
	98	- else if ((making_array_special \|\| (flags_on & att_array)) && array_p (var) == 0)
	99	+ else if ((making_array_special \|\| (flags_on & att_array)) && array_p (var) == 0 && assoc_p (var) == 0)
	100	var = convert_var_to_array (var);
	101	#endif /* ARRAY_VARS */
	102
	103	diff -Naur bash-4.0.orig/builtins/exit.def bash-4.0/builtins/exit.def
	104	--- bash-4.0.orig/builtins/exit.def 2009-01-04 11:32:22.000000000 -0800
[8e00734]	105	+++ bash-4.0/builtins/exit.def 2009-07-22 15:31:11.000000000 -0700
[c822ddc]	106	@@ -113,7 +113,7 @@
	107	for (i = stopmsg = 0; i < js.j_jobslots; i++)
	108	if (jobs[i] && STOPPED (i))
	109	stopmsg = JSTOPPED;
	110	- else if (check_jobs_at_exit && stopmsg == 0 && RUNNING (i))
	111	+ else if (check_jobs_at_exit && stopmsg == 0 && jobs[i] && RUNNING (i))
	112	stopmsg = JRUNNING;
	113
	114	if (stopmsg == JSTOPPED)
[e6b4db2]	115	diff -Naur bash-4.0.orig/builtins/fc.def bash-4.0/builtins/fc.def
	116	--- bash-4.0.orig/builtins/fc.def 2009-01-04 11:32:22.000000000 -0800
[8e00734]	117	+++ bash-4.0/builtins/fc.def 2009-07-22 15:31:26.000000000 -0700
[e6b4db2]	118	@@ -88,6 +88,7 @@
	119	extern int current_command_line_count;
	120	extern int literal_history;
	121	extern int posixly_correct;
	122	+extern int subshell_environment, interactive_shell;
	123
	124	extern int unlink __P((const char *));
	125
	126	@@ -172,7 +173,7 @@
	127	register int i;
	128	register char *sep;
	129	int numbering, reverse, listing, execute;
	130	- int histbeg, histend, last_hist, retval, opt;
	131	+ int histbeg, histend, last_hist, retval, opt, rh;
	132	FILE *stream;
	133	REPL rlist, rl;
	134	char ename, command, newcom, fcedit;
	135	@@ -275,6 +276,8 @@
	136
	137	fprintf (stderr, "%s\n", command);
	138	fc_replhist (command); /* replace `fc -s' with command */
	139	+ /* Posix says that the re-executed commands should be entered into the
	140	+ history. */
	141	return (parse_and_execute (command, "fc", SEVAL_NOHIST));
	142	}
	143
	144	@@ -293,7 +296,12 @@
	145	line was actually added (HISTIGNORE may have caused it to not be),
	146	so we check hist_last_line_added. */
	147
	148	- last_hist = i - remember_on_history - hist_last_line_added;
	149	+ /* Even though command substitution through parse_and_execute turns off
	150	+ remember_on_history, command substitution in a shell when set -o history
	151	+ has been enabled (interactive or not) should use it in the last_hist
	152	+ calculation as if it were on. */
	153	+ rh = remember_on_history \|\| ((subshell_environment & SUBSHELL_COMSUB) && enable_history_list);
	154	+ last_hist = i - rh - hist_last_line_added;
	155
	156	if (list)
	157	{
	158	@@ -456,7 +464,7 @@
	159	char *command;
	160	HIST_ENTRY **hlist;
	161	{
	162	- int sign, n, clen;
	163	+ int sign, n, clen, rh;
	164	register int i, j;
	165	register char *s;
	166
	167	@@ -472,7 +480,12 @@
	168	line was actually added (HISTIGNORE may have caused it to not be),
	169	so we check hist_last_line_added. This needs to agree with the
	170	calculation of last_hist in fc_builtin above. */
	171	- i -= remember_on_history + hist_last_line_added;
	172	+ /* Even though command substitution through parse_and_execute turns off
	173	+ remember_on_history, command substitution in a shell when set -o history
	174	+ has been enabled (interactive or not) should use it in the last_hist
	175	+ calculation as if it were on. */
	176	+ rh = remember_on_history \|\| ((subshell_environment & SUBSHELL_COMSUB) && enable_history_list);
	177	+ i -= rh + hist_last_line_added;
	178
	179	/* No specification defaults to most recent command. */
	180	if (command == NULL)
[7a39f29]	181	diff -Naur bash-4.0.orig/builtins/read.def bash-4.0/builtins/read.def
	182	--- bash-4.0.orig/builtins/read.def 2009-01-15 20:11:21.000000000 -0800
[8e00734]	183	+++ bash-4.0/builtins/read.def 2009-07-22 15:31:19.000000000 -0700
[7a39f29]	184	@@ -369,14 +369,14 @@
	185	code = setjmp (alrmbuf);
	186	if (code)
	187	{
	188	-#if 0
	189	+ /* Tricky. The top of the unwind-protect stack is the free of
	190	+ input_string. We want to run all the rest and use input_string,
	191	+ so we have to remove it from the stack. */
	192	+ remove_unwind_protect ();
	193	run_unwind_frame ("read_builtin");
	194	- return (EXECUTION_FAILURE);
	195	-#else
	196	input_string[i] = '\0'; /* make sure it's terminated */
	197	- retval = 128+SIGALRM;;
	198	+ retval = 128+SIGALRM;
	199	goto assign_vars;
	200	-#endif
	201	}
	202	old_alrm = set_signal_handler (SIGALRM, sigalrm);
	203	add_unwind_protect (reset_alarm, (char *)NULL);
[8e00734]	204	diff -Naur bash-4.0.orig/doc/bash.1 bash-4.0/doc/bash.1
	205	--- bash-4.0.orig/doc/bash.1 2009-02-18 12:13:56.000000000 -0800
	206	+++ bash-4.0/doc/bash.1 2009-07-22 15:31:48.000000000 -0700
	207	@@ -8257,9 +8257,10 @@
	208	Exit after reading and executing one command.
	209	.TP 8
	210	.B \-u
	211	-Treat unset variables as an error when performing
	212	+Treat unset variables and parameters other than the special
	213	+parameters "@" and "*" as an error when performing
	214	parameter expansion. If expansion is attempted on an
	215	-unset variable, the shell prints an error message, and,
	216	+unset variable or parameter, the shell prints an error message, and,
	217	if not interactive, exits with a non-zero status.
	218	.TP 8
	219	.B \-v
	220	diff -Naur bash-4.0.orig/doc/bashref.texi bash-4.0/doc/bashref.texi
	221	--- bash-4.0.orig/doc/bashref.texi 2009-02-18 12:14:43.000000000 -0800
	222	+++ bash-4.0/doc/bashref.texi 2009-07-22 15:31:48.000000000 -0700
	223	@@ -4138,7 +4138,8 @@
	224	Exit after reading and executing one command.
	225
	226	@item -u
	227	-Treat unset variables as an error when performing parameter expansion.
	228	+Treat unset variables and parameters other than the special parameters
	229	+@samp{@@} or @samp{*} as an error when performing parameter expansion.
	230	An error message will be written to the standard error, and a non-interactive
	231	shell will exit.
	232
[e6b4db2]	233	diff -Naur bash-4.0.orig/execute_cmd.c bash-4.0/execute_cmd.c
	234	--- bash-4.0.orig/execute_cmd.c 2009-02-13 13:41:41.000000000 -0800
[8e00734]	235	+++ bash-4.0/execute_cmd.c 2009-07-22 15:31:29.000000000 -0700
[e6b4db2]	236	@@ -568,6 +568,7 @@
	237
	238	/* Fork a subshell, turn off the subshell bit, turn off job
	239	control and call execute_command () on the command again. */
	240	+ line_number_for_err_trap = line_number;
	241	paren_pid = make_child (savestring (make_command_string (command)),
	242	asynchronous);
	243	if (paren_pid == 0)
	244	@@ -610,7 +611,10 @@
	245	if (user_subshell && was_error_trap && ignore_return == 0 && invert == 0 && exec_result != EXECUTION_SUCCESS)
	246	{
	247	last_command_exit_value = exec_result;
	248	+ save_line_number = line_number;
	249	+ line_number = line_number_for_err_trap;
	250	run_error_trap ();
	251	+ line_number = save_line_number;
	252	}
	253
	254	if (user_subshell && ignore_return == 0 && invert == 0 && exit_immediately_on_error && exec_result != EXECUTION_SUCCESS)
	255	@@ -766,7 +770,9 @@
	256	if (was_error_trap && ignore_return == 0 && invert == 0 && pipe_in == NO_PIPE && pipe_out == NO_PIPE && exec_result != EXECUTION_SUCCESS)
	257	{
	258	last_command_exit_value = exec_result;
	259	+ line_number = line_number_for_err_trap;
	260	run_error_trap ();
	261	+ line_number = save_line_number;
	262	}
	263
	264	if (ignore_return == 0 && invert == 0 &&
	265	@@ -2105,6 +2111,7 @@
	266	REDIRECT *rp;
	267	COMMAND tc, second;
	268	int ignore_return, exec_result, was_error_trap, invert;
	269	+ volatile int save_line_number;
	270
	271	ignore_return = (command->flags & CMD_IGNORE_RETURN) != 0;
	272
	273	@@ -2174,12 +2181,16 @@
	274	invert = (command->flags & CMD_INVERT_RETURN) != 0;
	275	ignore_return = (command->flags & CMD_IGNORE_RETURN) != 0;
	276
	277	+ line_number_for_err_trap = line_number;
	278	exec_result = execute_pipeline (command, asynchronous, pipe_in, pipe_out, fds_to_close);
	279
	280	if (was_error_trap && ignore_return == 0 && invert == 0 && exec_result != EXECUTION_SUCCESS)
	281	{
	282	last_command_exit_value = exec_result;
	283	+ save_line_number = line_number;
	284	+ line_number = line_number_for_err_trap;
	285	run_error_trap ();
	286	+ line_number = save_line_number;
	287	}
	288
	289	if (ignore_return == 0 && invert == 0 && exit_immediately_on_error && exec_result != EXECUTION_SUCCESS)
	290	@@ -2930,7 +2941,7 @@
	291	retval = execute_command (clauses->action);
	292	}
	293	while ((clauses->flags & CASEPAT_FALLTHROUGH) && (clauses = clauses->next));
	294	- if ((clauses->flags & CASEPAT_TESTNEXT) == 0)
	295	+ if (clauses == 0 \|\| (clauses->flags & CASEPAT_TESTNEXT) == 0)
	296	EXIT_CASE ();
	297	else
	298	break;
[8e00734]	299	diff -Naur bash-4.0.orig/externs.h bash-4.0/externs.h
	300	--- bash-4.0.orig/externs.h 2009-01-18 15:29:29.000000000 -0800
	301	+++ bash-4.0/externs.h 2009-07-22 15:31:45.000000000 -0700
	302	@@ -192,6 +192,8 @@
	303	extern char fmtumax __P((uintmax_t, int, char , size_t, int));
	304
	305	/* Declarations for functions defined in lib/sh/fpurge.c */
	306	+
	307	+#if defined NEED_FPURGE_DECL
	308	#if !HAVE_DECL_FPURGE
	309
	310	#if HAVE_FPURGE
	311	@@ -200,7 +202,7 @@
	312	extern int fpurge __P((FILE *stream));
	313
	314	#endif /* HAVE_DECL_FPURGE */
	315	-
	316	+#endif /* NEED_FPURGE_DECL */
	317
	318	/* Declarations for functions defined in lib/sh/getcwd.c */
	319	#if !defined (HAVE_GETCWD)
[140d857]	320	diff -Naur bash-4.0.orig/jobs.c bash-4.0/jobs.c
	321	--- bash-4.0.orig/jobs.c 2009-01-29 14:09:49.000000000 -0800
[8e00734]	322	+++ bash-4.0/jobs.c 2009-07-22 15:31:34.000000000 -0700
[140d857]	323	@@ -442,7 +442,7 @@
	324	old_pipeline = the_pipeline;
	325	the_pipeline = saved_pipeline;
	326	already_making_children = saved_already_making_children;
	327	- if (discard)
	328	+ if (discard && old_pipeline)
	329	discard_pipeline (old_pipeline);
	330	}
	331
	332	@@ -4202,4 +4202,23 @@
	333	sh_closepipe (pgrp_pipe);
	334	}
	335
	336	+void
	337	+save_pgrp_pipe (p, clear)
	338	+ int *p;
	339	+ int clear;
	340	+{
	341	+ p[0] = pgrp_pipe[0];
	342	+ p[1] = pgrp_pipe[1];
	343	+ if (clear)
	344	+ pgrp_pipe[0] = pgrp_pipe[1] = -1;
	345	+}
	346	+
	347	+void
	348	+restore_pgrp_pipe (p)
	349	+ int *p;
	350	+{
	351	+ pgrp_pipe[0] = p[0];
	352	+ pgrp_pipe[1] = p[1];
	353	+}
	354	+
	355	#endif /* PGRP_PIPE */
	356	diff -Naur bash-4.0.orig/jobs.h bash-4.0/jobs.h
	357	--- bash-4.0.orig/jobs.h 2009-01-04 11:32:29.000000000 -0800
[8e00734]	358	+++ bash-4.0/jobs.h 2009-07-22 15:31:34.000000000 -0700
[140d857]	359	@@ -235,6 +235,8 @@
	360	extern void init_job_stats __P((void));
	361
	362	extern void close_pgrp_pipe __P((void));
	363	+extern void save_pgrp_pipe __P((int *, int));
	364	+extern void restore_pgrp_pipe __P((int *));
	365
	366	#if defined (JOB_CONTROL)
	367	extern int job_control;
	368	diff -Naur bash-4.0.orig/lib/glob/glob.c bash-4.0/lib/glob/glob.c
	369	--- bash-4.0.orig/lib/glob/glob.c 2009-01-04 11:32:30.000000000 -0800
[8e00734]	370	+++ bash-4.0/lib/glob/glob.c 2009-07-22 15:31:43.000000000 -0700
[140d857]	371	@@ -356,7 +356,7 @@
	372	*np = 0;
	373	if (ep)
	374	*ep = 0;
	375	- if (r)
	376	+ if (r && r != &glob_error_return)
	377	free (r);
	378	return (struct globval *)0;
	379	}
[8e00734]	380	@@ -665,7 +665,9 @@
[140d857]	381	(void) closedir (d);
	382	}
	383
	384	- /* compat: if GX_ALLDIRS, add the passed directory also */
[8e00734]	385	+ /* compat: if GX_ADDCURDIR, add the passed directory also. Add an empty
	386	+ directory name as a placeholder if GX_NULLDIR (in which case the passed
	387	+ directory name is "."). */
	388	if (add_current)
[140d857]	389	{
	390	sdlen = strlen (dir);
[8e00734]	391	@@ -942,7 +944,12 @@
[140d857]	392	char **array;
	393	register unsigned int l;
	394
	395	- array = glob_dir_to_array (directories[i], temp_results, flags);
	396	+ /* If we're expanding **, we don't need to glue the directory
	397	+ name to the results; we've already done it in glob_vector */
	398	+ if ((dflags & GX_ALLDIRS) && filename[0] == '' && filename[1] == '' && filename[2] == '\0')
	399	+ array = temp_results;
	400	+ else
	401	+ array = glob_dir_to_array (directories[i], temp_results, flags);
	402	l = 0;
	403	while (array[l] != NULL)
	404	++l;
[8e00734]	405	@@ -959,7 +966,8 @@
[140d857]	406	result[result_size - 1] = NULL;
	407
	408	/* Note that the elements of ARRAY are not freed. */
	409	- free ((char *) array);
	410	+ if (array != temp_results)
	411	+ free ((char *) array);
	412	}
	413	}
	414	/* Free the directories. */
[8e00734]	415	@@ -1003,11 +1011,24 @@
	416
	417	/* Just return what glob_vector () returns appended to the
	418	directory name. */
	419	+ /* If flags & GX_ALLDIRS, we're called recursively */
	420	dflags = flags & ~GX_MARKDIRS;
	421	if (directory_len == 0)
	422	dflags \|= GX_NULLDIR;
	423	if ((flags & GX_GLOBSTAR) && filename[0] == '' && filename[1] == '' && filename[2] == '\0')
	424	- dflags \|= GX_ALLDIRS\|GX_ADDCURDIR;
	425	+ {
	426	+ dflags \|= GX_ALLDIRS\|GX_ADDCURDIR;
	427	+#if 0
	428	+ /* If we want all directories (dflags & GX_ALLDIRS) and we're not
	429	+ being called recursively as something like `echo */.o'
	430	+ ((flags & GX_ALLDIRS) == 0), we want to prevent glob_vector from
	431	+ adding a null directory name to the front of the temp_results
	432	+ array. We turn off ADDCURDIR if not called recursively and
	433	+ dlen == 0 */
	434	+#endif
	435	+ if (directory_len == 0 && (flags & GX_ALLDIRS) == 0)
	436	+ dflags &= ~GX_ADDCURDIR;
	437	+ }
	438	temp_results = glob_vector (filename,
	439	(directory_len == 0 ? "." : directory_name),
	440	dflags);
[140d857]	441	diff -Naur bash-4.0.orig/lib/readline/display.c bash-4.0/lib/readline/display.c
	442	--- bash-4.0.orig/lib/readline/display.c 2009-01-04 11:32:32.000000000 -0800
[8e00734]	443	+++ bash-4.0/lib/readline/display.c 2009-07-22 15:31:46.000000000 -0700
[140d857]	444	@@ -512,6 +512,7 @@
	445	/* Block keyboard interrupts because this function manipulates global
	446	data structures. */
	447	_rl_block_sigint ();
	448	+ RL_SETSTATE (RL_STATE_REDISPLAYING);
	449
	450	if (!rl_display_prompt)
	451	rl_display_prompt = "";
[8e00734]	452	@@ -1188,9 +1189,11 @@
	453	if (t < out)
	454	line[t - 1] = '>';
	455
	456	- if (!rl_display_fixed \|\| forced_display \|\| lmargin != last_lmargin)
	457	+ if (rl_display_fixed == 0 \|\| forced_display \|\| lmargin != last_lmargin)
	458	{
	459	forced_display = 0;
	460	+ o_cpos = _rl_last_c_pos;
	461	+ cpos_adjusted = 0;
	462	update_line (&visible_line[last_lmargin],
	463	&invisible_line[lmargin],
	464	0,
	465	@@ -1198,6 +1201,13 @@
	466	_rl_screenwidth + (lmargin ? 0 : wrap_offset),
	467	0);
	468
	469	+ if ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) &&
	470	+ cpos_adjusted == 0 &&
	471	+ _rl_last_c_pos != o_cpos &&
	472	+ _rl_last_c_pos > wrap_offset &&
	473	+ o_cpos < prompt_last_invisible)
	474	+ _rl_last_c_pos -= prompt_invis_chars_first_line; /* XXX - was wrap_offset */
	475	+
	476	/* If the visible new line is shorter than the old, but the number
	477	of invisible characters is greater, and we are at the end of
	478	the new line, we need to clear to eol. */
	479	@@ -1236,6 +1246,7 @@
[140d857]	480	visible_wrap_offset = wrap_offset;
	481	}
	482
	483	+ RL_UNSETSTATE (RL_STATE_REDISPLAYING);
	484	_rl_release_sigint ();
	485	}
	486
[8e00734]	487	@@ -1772,7 +1783,7 @@
[140d857]	488	space_to_eol will insert too many spaces. XXX - maybe we should
	489	adjust col_lendiff based on the difference between _rl_last_c_pos
	490	and _rl_screenwidth */
	491	- if (col_lendiff && (_rl_last_c_pos < _rl_screenwidth))
	492	+ if (col_lendiff && ((MB_CUR_MAX == 1 \|\| rl_byte_oriented) \|\| (_rl_last_c_pos < _rl_screenwidth)))
	493	#endif
	494	{
	495	if (_rl_term_autowrap && current_line < inv_botlin)
[8e00734]	496	@@ -1892,6 +1903,10 @@
[140d857]	497
	498	woff = WRAP_OFFSET (_rl_last_v_pos, wrap_offset);
	499	cpos = _rl_last_c_pos;
	500	+
	501	+ if (cpos == 0 && cpos == new)
	502	+ return;
	503	+
	504	#if defined (HANDLE_MULTIBYTE)
	505	/* If we have multibyte characters, NEW is indexed by the buffer point in
	506	a multibyte string, but _rl_last_c_pos is the display position. In
[8e00734]	507	@@ -1905,9 +1920,9 @@
[140d857]	508	prompt string, since they're both buffer indices and DPOS is a
	509	desired display position. */
	510	if ((new > prompt_last_invisible) \|\| /* XXX - don't use woff here */
	511	- (prompt_physical_chars > _rl_screenwidth &&
	512	+ (prompt_physical_chars >= _rl_screenwidth &&
	513	_rl_last_v_pos == prompt_last_screen_line &&
	514	- wrap_offset >= woff &&
	515	+ wrap_offset >= woff && dpos >= woff &&
	516	new > (prompt_last_invisible-(_rl_screenwidth*_rl_last_v_pos)-wrap_offset)))
	517	/* XXX last comparison might need to be >= */
	518	{
	519	diff -Naur bash-4.0.orig/lib/readline/readline.h bash-4.0/lib/readline/readline.h
	520	--- bash-4.0.orig/lib/readline/readline.h 2009-01-04 11:32:33.000000000 -0800
[8e00734]	521	+++ bash-4.0/lib/readline/readline.h 2009-07-22 15:31:36.000000000 -0700
[140d857]	522	@@ -814,8 +814,9 @@
	523	#define RL_STATE_VIMOTION 0x100000 /* reading vi motion arg */
	524	#define RL_STATE_MULTIKEY 0x200000 /* reading multiple-key command */
	525	#define RL_STATE_VICMDONCE 0x400000 /* entered vi command mode at least once */
	526	+#define RL_STATE_REDISPLAYING 0x800000 /* updating terminal display */
	527
	528	-#define RL_STATE_DONE 0x800000 /* done; accepted line */
	529	+#define RL_STATE_DONE 0x1000000 /* done; accepted line */
	530
	531	#define RL_SETSTATE(x) (rl_readline_state \|= (x))
	532	#define RL_UNSETSTATE(x) (rl_readline_state &= ~(x))
	533	diff -Naur bash-4.0.orig/lib/readline/terminal.c bash-4.0/lib/readline/terminal.c
	534	--- bash-4.0.orig/lib/readline/terminal.c 2009-01-04 11:32:34.000000000 -0800
[8e00734]	535	+++ bash-4.0/lib/readline/terminal.c 2009-07-22 15:31:36.000000000 -0700
[140d857]	536	@@ -355,7 +355,7 @@
	537	_rl_get_screen_size (fileno (rl_instream), 1);
	538	if (CUSTOM_REDISPLAY_FUNC ())
	539	rl_forced_update_display ();
	540	- else
	541	+ else if (RL_ISSTATE(RL_STATE_REDISPLAYING) == 0)
	542	_rl_redisplay_after_sigwinch ();
	543	}
	544	}
	545	diff -Naur bash-4.0.orig/lib/sh/winsize.c bash-4.0/lib/sh/winsize.c
	546	--- bash-4.0.orig/lib/sh/winsize.c 2008-08-12 10:53:51.000000000 -0700
[8e00734]	547	+++ bash-4.0/lib/sh/winsize.c 2009-07-22 15:31:33.000000000 -0700
[140d857]	548	@@ -30,16 +30,29 @@
	549
	550	#include <sys/ioctl.h>
	551
	552	-#if !defined (STRUCT_WINSIZE_IN_SYS_IOCTL)
	553	-/* For struct winsize on SCO */
	554	-/* sys/ptem.h has winsize but needs mblk_t from sys/stream.h */
	555	-# if defined (HAVE_SYS_PTEM_H) && defined (TIOCGWINSZ) && defined (SIGWINCH)
	556	-# if defined (HAVE_SYS_STREAM_H)
	557	-# include <sys/stream.h>
	558	-# endif
	559	+/* Try to find the definitions of `struct winsize' and TIOGCWINSZ */
	560	+
	561	+#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
	562	+# include <sys/ioctl.h>
	563	+#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
	564	+
	565	+#if defined (STRUCT_WINSIZE_IN_TERMIOS) && !defined (STRUCT_WINSIZE_IN_SYS_IOCTL)
	566	+# include <termios.h>
	567	+#endif /* STRUCT_WINSIZE_IN_TERMIOS && !STRUCT_WINSIZE_IN_SYS_IOCTL */
	568	+
	569	+/* Not in either of the standard places, look around. */
	570	+#if !defined (STRUCT_WINSIZE_IN_TERMIOS) && !defined (STRUCT_WINSIZE_IN_SYS_IOCTL)
	571	+# if defined (HAVE_SYS_STREAM_H)
	572	+# include <sys/stream.h>
	573	+# endif /* HAVE_SYS_STREAM_H */
	574	+# if defined (HAVE_SYS_PTEM_H) /* SVR4.2, at least, has it here */
	575	# include <sys/ptem.h>
	576	-# endif /* HAVE_SYS_PTEM_H && TIOCGWINSZ && SIGWINCH */
	577	-#endif /* !STRUCT_WINSIZE_IN_SYS_IOCTL */
	578	+# define _IO_PTEM_H /* work around SVR4.2 1.1.4 bug */
	579	+# endif /* HAVE_SYS_PTEM_H */
	580	+# if defined (HAVE_SYS_PTE_H) /* ??? */
	581	+# include <sys/pte.h>
	582	+# endif /* HAVE_SYS_PTE_H */
	583	+#endif /* !STRUCT_WINSIZE_IN_TERMIOS && !STRUCT_WINSIZE_IN_SYS_IOCTL */
	584
	585	#include <stdio.h>
	586
[c822ddc]	587	diff -Naur bash-4.0.orig/parse.y bash-4.0/parse.y
	588	--- bash-4.0.orig/parse.y 2009-01-08 05:29:12.000000000 -0800
[8e00734]	589	+++ bash-4.0/parse.y 2009-07-22 15:31:39.000000000 -0700
[e6b4db2]	590	@@ -1122,7 +1122,7 @@
	591	REDIRECTEE rd;
	592	REDIRECT *r;
	593
	594	- tc = $1;
	595	+ tc = $1->type == cm_simple ? (COMMAND *)$1->value.Simple : $1;
	596	rd.dest = 1;
	597	r = make_redirection (2, r_duplicating_output, rd);
	598	if (tc->redirects)
[c822ddc]	599	@@ -1615,10 +1615,11 @@
	600	{
	601	int *ret;
	602
	603	- ret = (int )xmalloc (3 sizeof (int));
	604	+ ret = (int )xmalloc (4 sizeof (int));
	605	ret[0] = last_read_token;
	606	ret[1] = token_before_that;
	607	ret[2] = two_tokens_ago;
	608	+ ret[3] = current_token;
	609	return ret;
	610	}
	611
	612	@@ -1631,6 +1632,7 @@
	613	last_read_token = ts[0];
	614	token_before_that = ts[1];
	615	two_tokens_ago = ts[2];
	616	+ current_token = ts[3];
	617	}
	618
	619	/*
[e6b4db2]	620	@@ -1877,7 +1879,7 @@
	621	prompt_again ();
	622	ret = read_a_line (remove_quoted_newline);
	623	#if defined (HISTORY)
	624	- if (remember_on_history && (parser_state & PST_HEREDOC))
	625	+ if (ret && remember_on_history && (parser_state & PST_HEREDOC))
	626	{
	627	/* To make adding the the here-document body right, we need to rely
	628	on history_delimiting_chars() returning \n for the first line of
[c822ddc]	629	@@ -2668,6 +2670,7 @@
	630	FREE (word_desc_to_read);
	631	word_desc_to_read = (WORD_DESC *)NULL;
	632
	633	+ current_token = '\n'; /* XXX */
	634	last_read_token = '\n';
	635	token_to_read = '\n';
	636	}
	637	@@ -2915,6 +2918,7 @@
	638	#define P_DQUOTE 0x04
	639	#define P_COMMAND 0x08 /* parsing a command, so look for comments */
	640	#define P_BACKQUOTE 0x10 /* parsing a backquoted command substitution */
	641	+#define P_ARRAYSUB 0x20 /* parsing a [...] array subscript for assignment */
	642
	643	/* Lexical state while parsing a grouping construct or $(...). */
	644	#define LEX_WASDOL 0x001
[973b90d5]	645	@@ -2927,6 +2931,7 @@
	646	#define LEX_INHEREDOC 0x080
	647	#define LEX_HEREDELIM 0x100 /* reading here-doc delimiter */
	648	#define LEX_STRIPDOC 0x200 /* <<- strip tabs from here doc delim */
	649	+#define LEX_INWORD 0x400
	650
	651	#define COMSUB_META(ch) ((ch) == ';' \|\| (ch) == '&' \|\| (ch) == '\|')
	652
	653	@@ -3129,6 +3134,8 @@
[c822ddc]	654	APPEND_NESTRET ();
	655	FREE (nestret);
	656	}
	657	+ else if ((flags & P_ARRAYSUB) && (tflags & LEX_WASDOL) && (ch == '(' \|\| ch == '{' \|\| ch == '[')) /* ) } ] */
	658	+ goto parse_dollar_word;
	659	}
	660	/* Parse an old-style command substitution within double quotes as a
	661	single word. */
[973b90d5]	662	@@ -3145,6 +3152,7 @@
[c822ddc]	663	else if MBTEST(open != '`' && (tflags & LEX_WASDOL) && (ch == '(' \|\| ch == '{' \|\| ch == '[')) /* ) } ] */
	664	/* check for $(), $[], or ${} inside quoted string. */
	665	{
	666	+parse_dollar_word:
	667	if (open == ch) /* undo previous increment */
	668	count--;
	669	if (ch == '(') /* ) */
[973b90d5]	670	@@ -3179,7 +3187,7 @@
	671	int open, close;
	672	int *lenp, flags;
	673	{
	674	- int count, ch, peekc, tflags, lex_rwlen, lex_firstind;
	675	+ int count, ch, peekc, tflags, lex_rwlen, lex_wlen, lex_firstind;
	676	int nestlen, ttranslen, start_lineno;
	677	char ret, nestret, ttrans, heredelim;
	678	int retind, retsize, rflags, hdlen;
	679	@@ -3200,7 +3208,7 @@
	680	retind = 0;
	681
	682	start_lineno = line_number;
	683	- lex_rwlen = 0;
	684	+ lex_rwlen = lex_wlen = 0;
	685
	686	heredelim = 0;
	687	lex_firstind = -1;
	688	@@ -3267,6 +3275,46 @@
	689	continue;
[c822ddc]	690	}
	691
[973b90d5]	692	+ if (tflags & LEX_PASSNEXT) /* last char was backslash */
	693	+ {
	694	+/itrace("parse_comsub:%d: lex_passnext -> 0 ch = `%c' (%d)", line_number, ch, __LINE__);/
	695	+ tflags &= ~LEX_PASSNEXT;
	696	+ if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
	697	+ {
	698	+ if (retind > 0)
	699	+ retind--; /* swallow previously-added backslash */
	700	+ continue;
	701	+ }
	702	+
	703	+ RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
	704	+ if MBTEST(ch == CTLESC \|\| ch == CTLNUL)
	705	+ ret[retind++] = CTLESC;
	706	+ ret[retind++] = ch;
	707	+ continue;
	708	+ }
	709	+
	710	+ /* If this is a shell break character, we are not in a word. If not,
	711	+ we either start or continue a word. */
	712	+ if MBTEST(shellbreak (ch))
	713	+ {
	714	+ tflags &= ~LEX_INWORD;
	715	+/itrace("parse_comsub:%d: lex_inword -> 0 ch = `%c' (%d)", line_number, ch, __LINE__);/
	716	+ }
	717	+ else
	718	+ {
	719	+ if (tflags & LEX_INWORD)
	720	+ {
	721	+ lex_wlen++;
	722	+/itrace("parse_comsub:%d: lex_inword == 1 ch = `%c' lex_wlen = %d (%d)", line_number, ch, lex_wlen, __LINE__);/
	723	+ }
	724	+ else
	725	+ {
	726	+/itrace("parse_comsub:%d: lex_inword -> 1 ch = `%c' (%d)", line_number, ch, __LINE__);/
	727	+ tflags \|= LEX_INWORD;
	728	+ lex_wlen = 0;
	729	+ }
	730	+ }
	731	+
	732	/* Skip whitespace */
	733	if MBTEST(shellblank (ch) && lex_rwlen == 0)
	734	{
[140d857]	735	@@ -3306,7 +3354,7 @@
	736	}
	737
	738	/* Meta-characters that can introduce a reserved word. Not perfect yet. */
	739	- if MBTEST((tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && shellmeta(ch))
	740	+ if MBTEST((tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && (shellmeta(ch) \|\| ch == '\n'))
	741	{
	742	/* Add this character. */
	743	RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
[973b90d5]	744	@@ -3364,9 +3412,21 @@
	745	}
	746	tflags &= ~LEX_RESWDOK;
	747	}
	748	- else if (shellbreak (ch) == 0)
	749	+ else if MBTEST((tflags & LEX_CKCOMMENT) && ch == '#' && (lex_rwlen == 0 \|\| ((tflags & LEX_INWORD) && lex_wlen == 0)))
	750	+ ; /* don't modify LEX_RESWDOK if we're starting a comment */
	751	+ else if MBTEST((tflags & LEX_INCASE) && ch != '\n')
	752	+ /* If we can read a reserved word and we're in case, we're at the
	753	+ point where we can read a new pattern list or an esac. We
	754	+ handle the esac case above. If we read a newline, we want to
	755	+ leave LEX_RESWDOK alone. If we read anything else, we want to
	756	+ turn off LEX_RESWDOK, since we're going to read a pattern list. */
	757	{
	758	- tflags &= ~LEX_RESWDOK;
	759	+ tflags &= ~LEX_RESWDOK;
	760	+/itrace("parse_comsub:%d: lex_incase == 1 found `%c', lex_reswordok -> 0", line_number, ch);/
	761	+}
	762	+ else if MBTEST(shellbreak (ch) == 0)
	763	+{
	764	+ tflags &= ~LEX_RESWDOK;
	765	/itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);/
	766	}
	767	}
	768	@@ -3394,36 +3454,23 @@
[c822ddc]	769	}
	770	else
	771	shell_ungetc (peekc);
	772	- tflags \|= LEX_HEREDELIM;
	773	- lex_firstind = -1;
	774	+ if (peekc != '<')
	775	+ {
	776	+ tflags \|= LEX_HEREDELIM;
	777	+ lex_firstind = -1;
	778	+ }
	779	continue;
	780	}
	781	else
[973b90d5]	782	- ch = peekc; /* fall through and continue XXX - this skips comments if peekc == '#' */
	783	+ ch = peekc; /* fall through and continue XXX */
	784	}
	785	- /* Not exactly right yet, should handle shell metacharacters, too. If
	786	- any changes are made to this test, make analogous changes to subst.c:
	787	- extract_delimited_string(). */
	788	- else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 \|\| ret[retind-1] == '\n' \|\| shellblank (ret[retind - 1])))
	789	+ else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (((tflags & LEX_RESWDOK) && lex_rwlen == 0) \|\| ((tflags & LEX_INWORD) && lex_wlen == 0)))
	790	+{
	791	+/itrace("parse_comsub:%d: lex_incomment -> 1 (%d)", line_number, __LINE__);/
	792	tflags \|= LEX_INCOMMENT;
	793	+}
	794
	795	- if (tflags & LEX_PASSNEXT) /* last char was backslash */
	796	- {
	797	- tflags &= ~LEX_PASSNEXT;
	798	- if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
	799	- {
	800	- if (retind > 0)
	801	- retind--; /* swallow previously-added backslash */
	802	- continue;
	803	- }
	804	-
	805	- RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
	806	- if MBTEST(ch == CTLESC \|\| ch == CTLNUL)
	807	- ret[retind++] = CTLESC;
	808	- ret[retind++] = ch;
	809	- continue;
	810	- }
	811	- else if MBTEST(ch == CTLESC \|\| ch == CTLNUL) /* special shell escapes */
	812	+ if MBTEST(ch == CTLESC \|\| ch == CTLNUL) /* special shell escapes */
	813	{
	814	RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
	815	ret[retind++] = CTLESC;
	816	@@ -4248,7 +4295,7 @@
[c822ddc]	817	((token_index > 0 && assignment_acceptable (last_read_token) && token_is_ident (token, token_index)) \|\|
	818	(token_index == 0 && (parser_state&PST_COMPASSIGN))))
	819	{
	820	- ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0);
	821	+ ttok = parse_matched_pair (cd, '[', ']', &ttoklen, P_ARRAYSUB);
	822	if (ttok == &matched_pair_error)
	823	return -1; /* Bail immediately. */
	824	RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
[973b90d5]	825	@@ -4449,6 +4496,7 @@
[c822ddc]	826	case '}': /* XXX */
	827	case AND_AND:
	828	case BANG:
	829	+ case BAR_AND:
	830	case DO:
	831	case DONE:
	832	case ELIF:
[973b90d5]	833	diff -Naur bash-4.0.orig/patchlevel.h bash-4.0/patchlevel.h
	834	--- bash-4.0.orig/patchlevel.h 2009-01-04 11:32:40.000000000 -0800
[8e00734]	835	+++ bash-4.0/patchlevel.h 2009-07-22 15:31:48.000000000 -0700
[973b90d5]	836	@@ -25,6 +25,6 @@
	837	regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
	838	looks for to find the patch level (for the sccs version string). */
	839
	840	-#define PATCHLEVEL 0
[8e00734]	841	+#define PATCHLEVEL 28
[973b90d5]	842
	843	#endif /* _PATCHLEVEL_H_ */
[c822ddc]	844	diff -Naur bash-4.0.orig/pcomplete.c bash-4.0/pcomplete.c
	845	--- bash-4.0.orig/pcomplete.c 2009-02-01 14:12:31.000000000 -0800
[8e00734]	846	+++ bash-4.0/pcomplete.c 2009-07-22 15:31:08.000000000 -0700
[c822ddc]	847	@@ -1032,6 +1032,7 @@
	848	cmdlist = build_arg_list (funcname, text, lwords, cw);
	849
	850	pps = &ps;
	851	+ save_parser_state (pps);
	852	begin_unwind_frame ("gen-shell-function-matches");
	853	add_unwind_protect (restore_parser_state, (char *)pps);
	854	add_unwind_protect (dispose_words, (char *)cmdlist);
[e6b4db2]	855	diff -Naur bash-4.0.orig/sig.c bash-4.0/sig.c
	856	--- bash-4.0.orig/sig.c 2009-01-04 11:32:41.000000000 -0800
[8e00734]	857	+++ bash-4.0/sig.c 2009-07-22 15:31:28.000000000 -0700
[e6b4db2]	858	@@ -448,6 +448,48 @@
	859	termsig_sighandler (sig)
	860	int sig;
	861	{
	862	+ /* If we get called twice with the same signal before handling it,
	863	+ terminate right away. */
	864	+ if (
	865	+#ifdef SIGHUP
	866	+ sig != SIGHUP &&
	867	+#endif
	868	+#ifdef SIGINT
	869	+ sig != SIGINT &&
	870	+#endif
	871	+#ifdef SIGDANGER
	872	+ sig != SIGDANGER &&
	873	+#endif
	874	+#ifdef SIGPIPE
	875	+ sig != SIGPIPE &&
	876	+#endif
	877	+#ifdef SIGALRM
	878	+ sig != SIGALRM &&
	879	+#endif
	880	+#ifdef SIGTERM
	881	+ sig != SIGTERM &&
	882	+#endif
	883	+#ifdef SIGXCPU
	884	+ sig != SIGXCPU &&
	885	+#endif
	886	+#ifdef SIGXFSZ
	887	+ sig != SIGXFSZ &&
	888	+#endif
	889	+#ifdef SIGVTALRM
	890	+ sig != SIGVTALRM &&
	891	+#endif
	892	+#ifdef SIGLOST
	893	+ sig != SIGLOST &&
	894	+#endif
	895	+#ifdef SIGUSR1
	896	+ sig != SIGUSR1 &&
	897	+#endif
	898	+#ifdef SIGUSR2
	899	+ sig != SIGUSR2 &&
	900	+#endif
	901	+ sig == terminating_signal)
	902	+ terminate_immediately = 1;
	903	+
	904	terminating_signal = sig;
	905
	906	/* XXX - should this also trigger when interrupt_immediately is set? */
[c822ddc]	907	diff -Naur bash-4.0.orig/subst.c bash-4.0/subst.c
	908	--- bash-4.0.orig/subst.c 2009-01-28 11:34:12.000000000 -0800
[8e00734]	909	+++ bash-4.0/subst.c 2009-07-22 15:31:48.000000000 -0700
[e6b4db2]	910	@@ -85,6 +85,7 @@
	911
	912	/* Flags for the `pflags' argument to param_expand() */
	913	#define PF_NOCOMSUB 0x01 /* Do not perform command substitution */
	914	+#define PF_IGNUNBOUND 0x02 /* ignore unbound vars even if -u set */
	915
	916	/* These defs make it easier to use the editor. */
	917	#define LBRACE '{'
	918	@@ -222,6 +223,7 @@
[c822ddc]	919	static int skip_double_quoted __P((char *, size_t, int));
	920	static char extract_delimited_string __P((char , int , char , char , char , int));
	921	static char extract_dollar_brace_string __P((char , int *, int, int));
	922	+static int skip_matched_pair __P((const char *, int, int, int, int));
	923
	924	static char pos_params __P((char , int, int, int));
	925
[e6b4db2]	926	@@ -262,7 +264,7 @@
	927	static int chk_atstar __P((char , int, int , int *));
	928	static int chk_arithsub __P((const char *, int));
	929
	930	-static WORD_DESC parameter_brace_expand_word __P((char , int, int));
	931	+static WORD_DESC parameter_brace_expand_word __P((char , int, int, int));
	932	static WORD_DESC parameter_brace_expand_indir __P((char , int, int, int , int ));
	933	static WORD_DESC parameter_brace_expand_rhs __P((char , char , int, int, int , int *));
	934	static void parameter_brace_expand_error __P((char , char ));
	935	@@ -1374,6 +1376,107 @@
[c822ddc]	936
	937	#define CQ_RETURN(x) do { no_longjmp_on_fatal_error = 0; return (x); } while (0)
	938
	939	+/* This function assumes s[i] == open; returns with s[ret] == close; used to
	940	+ parse array subscripts. FLAGS currently unused. */
	941	+static int
	942	+skip_matched_pair (string, start, open, close, flags)
	943	+ const char *string;
	944	+ int start, open, close, flags;
	945	+{
	946	+ int i, pass_next, backq, si, c, count;
	947	+ size_t slen;
	948	+ char temp, ss;
	949	+ DECLARE_MBSTATE;
	950	+
	951	+ slen = strlen (string + start) + start;
	952	+ no_longjmp_on_fatal_error = 1;
	953	+
	954	+ i = start + 1; /* skip over leading bracket */
	955	+ count = 1;
	956	+ pass_next = backq = 0;
	957	+ ss = (char *)string;
	958	+ while (c = string[i])
	959	+ {
	960	+ if (pass_next)
	961	+ {
	962	+ pass_next = 0;
	963	+ if (c == 0)
	964	+ CQ_RETURN(i);
	965	+ ADVANCE_CHAR (string, slen, i);
	966	+ continue;
	967	+ }
	968	+ else if (c == '\\')
	969	+ {
	970	+ pass_next = 1;
	971	+ i++;
	972	+ continue;
	973	+ }
	974	+ else if (backq)
	975	+ {
	976	+ if (c == '`')
	977	+ backq = 0;
	978	+ ADVANCE_CHAR (string, slen, i);
	979	+ continue;
	980	+ }
	981	+ else if (c == '`')
	982	+ {
	983	+ backq = 1;
	984	+ i++;
	985	+ continue;
	986	+ }
	987	+ else if (c == open)
	988	+ {
	989	+ count++;
	990	+ i++;
	991	+ continue;
	992	+ }
	993	+ else if (c == close)
	994	+ {
	995	+ count--;
	996	+ if (count == 0)
	997	+ break;
	998	+ i++;
	999	+ continue;
	1000	+ }
	1001	+ else if (c == '\'' \|\| c == '"')
	1002	+ {
	1003	+ i = (c == '\'') ? skip_single_quoted (ss, slen, ++i)
	1004	+ : skip_double_quoted (ss, slen, ++i);
	1005	+ /* no increment, the skip functions increment past the closing quote. */
	1006	+ }
	1007	+ else if (c == '$' && (string[i+1] == LPAREN \|\| string[i+1] == LBRACE))
	1008	+ {
	1009	+ si = i + 2;
	1010	+ if (string[si] == '\0')
	1011	+ CQ_RETURN(si);
	1012	+
	1013	+ if (string[i+1] == LPAREN)
	1014	+ temp = extract_delimited_string (ss, &si, "$(", "(", ")", SX_NOALLOC\|SX_COMMAND); /* ) */
	1015	+ else
	1016	+ temp = extract_dollar_brace_string (ss, &si, 0, SX_NOALLOC);
	1017	+ i = si;
	1018	+ if (string[i] == '\0') /* don't increment i past EOS in loop */
	1019	+ break;
	1020	+ i++;
	1021	+ continue;
	1022	+ }
	1023	+ else
	1024	+ ADVANCE_CHAR (string, slen, i);
	1025	+ }
	1026	+
	1027	+ CQ_RETURN(i);
	1028	+}
	1029	+
	1030	+#if defined (ARRAY_VARS)
	1031	+int
	1032	+skipsubscript (string, start)
	1033	+ const char *string;
	1034	+ int start;
	1035	+{
	1036	+ return (skip_matched_pair (string, start, '[', ']', 0));
	1037	+}
	1038	+#endif
	1039	+
	1040	/* Skip characters in STRING until we find a character in DELIMS, and return
	1041	the index of that character. START is the index into string at which we
	1042	begin. This is similar in spirit to strpbrk, but it returns an index into
[e6b4db2]	1043	@@ -5093,9 +5196,9 @@
	1044	the shell, e.g., "@", "$", "*", etc. QUOTED, if non-zero, means that
	1045	NAME was found inside of a double-quoted expression. */
	1046	static WORD_DESC *
	1047	-parameter_brace_expand_word (name, var_is_special, quoted)
	1048	+parameter_brace_expand_word (name, var_is_special, quoted, pflags)
	1049	char *name;
	1050	- int var_is_special, quoted;
	1051	+ int var_is_special, quoted, pflags;
	1052	{
	1053	WORD_DESC *ret;
	1054	char temp, tt;
	1055	@@ -5127,7 +5230,7 @@
	1056	strcpy (tt + 1, name);
	1057
	1058	ret = param_expand (tt, &sindex, quoted, (int )NULL, (int )NULL,
	1059	- (int )NULL, (int )NULL, 0);
	1060	+ (int )NULL, (int )NULL, pflags);
	1061	free (tt);
	1062	}
	1063	#if defined (ARRAY_VARS)
	1064	@@ -5188,7 +5291,7 @@
	1065	char temp, t;
	1066	WORD_DESC *w;
	1067
	1068	- w = parameter_brace_expand_word (name, var_is_special, quoted);
	1069	+ w = parameter_brace_expand_word (name, var_is_special, quoted, PF_IGNUNBOUND);
	1070	t = w->word;
	1071	/* Have to dequote here if necessary */
	1072	if (t)
	1073	@@ -5205,7 +5308,7 @@
	1074	if (t == 0)
	1075	return (WORD_DESC *)NULL;
	1076
	1077	- w = parameter_brace_expand_word (t, SPECIAL_VAR(t, 0), quoted);
	1078	+ w = parameter_brace_expand_word (t, SPECIAL_VAR(t, 0), quoted, 0);
	1079	free (t);
	1080
	1081	return w;
	1082	@@ -6556,7 +6659,7 @@
	1083	if (want_indir)
	1084	tdesc = parameter_brace_expand_indir (name + 1, var_is_special, quoted, quoted_dollar_atp, contains_dollar_at);
	1085	else
	1086	- tdesc = parameter_brace_expand_word (name, var_is_special, quoted);
	1087	+ tdesc = parameter_brace_expand_word (name, var_is_special, quoted, PF_IGNUNBOUND);
	1088
	1089	if (tdesc)
	1090	{
[8e00734]	1091	@@ -6664,13 +6767,13 @@
	1092	return &expand_wdesc_error;
	1093
	1094	case RBRACE:
	1095	- if (var_is_set == 0 && unbound_vars_is_error)
	1096	+ if (var_is_set == 0 && unbound_vars_is_error && ((name[0] != '@' && name[0] != '*') \|\| name[1]))
	1097	{
	1098	+ last_command_exit_value = EXECUTION_FAILURE;
	1099	err_unboundvar (name);
	1100	FREE (value);
	1101	FREE (temp);
	1102	free (name);
	1103	- last_command_exit_value = EXECUTION_FAILURE;
	1104	return (interactive_shell ? &expand_wdesc_error : &expand_wdesc_fatal);
	1105	}
	1106	break;
	1107	@@ -6887,15 +6990,25 @@
[e6b4db2]	1108	case '': / `$' /
	1109	list = list_rest_of_args ();
	1110
	1111	- if (list == 0 && unbound_vars_is_error)
[8e00734]	1112	+#if 0
	1113	+ /* According to austin-group posix proposal by Geoff Clare in
	1114	+ <20090505091501.GA10097@squonk.masqnet> of 5 May 2009:
	1115	+
	1116	+ "The shell shall write a message to standard error and
	1117	+ immediately exit when it tries to expand an unset parameter
	1118	+ other than the '@' and '*' special parameters."
	1119	+ */
	1120	+
[e6b4db2]	1121	+ if (list == 0 && unbound_vars_is_error && (pflags & PF_IGNUNBOUND) == 0)
	1122	{
	1123	uerror[0] = '$';
	1124	uerror[1] = '*';
[8e00734]	1125	uerror[2] = '\0';
	1126	- err_unboundvar (uerror);
	1127	last_command_exit_value = EXECUTION_FAILURE;
	1128	+ err_unboundvar (uerror);
	1129	return (interactive_shell ? &expand_wdesc_error : &expand_wdesc_fatal);
	1130	}
	1131	+#endif
	1132
	1133	/* If there are no command-line arguments, this should just
	1134	disappear if there are other characters in the expansion,
	1135	@@ -6949,15 +7062,25 @@
[e6b4db2]	1136	case '@': /* `$@' */
	1137	list = list_rest_of_args ();
	1138
	1139	- if (list == 0 && unbound_vars_is_error)
[8e00734]	1140	+#if 0
	1141	+ /* According to austin-group posix proposal by Geoff Clare in
	1142	+ <20090505091501.GA10097@squonk.masqnet> of 5 May 2009:
	1143	+
	1144	+ "The shell shall write a message to standard error and
	1145	+ immediately exit when it tries to expand an unset parameter
	1146	+ other than the '@' and '*' special parameters."
	1147	+ */
	1148	+
[e6b4db2]	1149	+ if (list == 0 && unbound_vars_is_error && (pflags & PF_IGNUNBOUND) == 0)
	1150	{
	1151	uerror[0] = '$';
	1152	uerror[1] = '@';
[8e00734]	1153	uerror[2] = '\0';
	1154	- err_unboundvar (uerror);
	1155	last_command_exit_value = EXECUTION_FAILURE;
	1156	+ err_unboundvar (uerror);
	1157	return (interactive_shell ? &expand_wdesc_error : &expand_wdesc_fatal);
	1158	}
	1159	+#endif
	1160
	1161	/* We want to flag the fact that we saw this. We can't turn
	1162	off quoting entirely, because other characters in the
[e6b4db2]	1163	diff -Naur bash-4.0.orig/trap.c bash-4.0/trap.c
	1164	--- bash-4.0.orig/trap.c 2009-01-16 14:07:53.000000000 -0800
[8e00734]	1165	+++ bash-4.0/trap.c 2009-07-22 15:31:34.000000000 -0700
[e6b4db2]	1166	@@ -755,7 +755,7 @@
	1167	}
	1168
	1169	flags = SEVAL_NONINT\|SEVAL_NOHIST;
	1170	- if (sig != DEBUG_TRAP && sig != RETURN_TRAP)
	1171	+ if (sig != DEBUG_TRAP && sig != RETURN_TRAP && sig != ERROR_TRAP)
	1172	flags \|= SEVAL_RESETLINE;
	1173	if (function_code == 0)
	1174	parse_and_execute (trap_command, tag, flags);
[140d857]	1175	@@ -798,12 +798,36 @@
	1176	run_debug_trap ()
	1177	{
	1178	int trap_exit_value;
	1179	+ pid_t save_pgrp;
	1180	+ int save_pipe[2];
	1181
	1182	/* XXX - question: should the DEBUG trap inherit the RETURN trap? */
	1183	trap_exit_value = 0;
	1184	if ((sigmodes[DEBUG_TRAP] & SIG_TRAPPED) && ((sigmodes[DEBUG_TRAP] & SIG_IGNORED) == 0) && ((sigmodes[DEBUG_TRAP] & SIG_INPROGRESS) == 0))
	1185	{
	1186	+#if defined (JOB_CONTROL)
	1187	+ save_pgrp = pipeline_pgrp;
	1188	+ pipeline_pgrp = 0;
	1189	+ save_pipeline (1);
	1190	+# if defined (PGRP_PIPE)
	1191	+ save_pgrp_pipe (save_pipe, 1);
	1192	+# endif
	1193	+ stop_making_children ();
	1194	+#endif
	1195	+
	1196	trap_exit_value = _run_trap_internal (DEBUG_TRAP, "debug trap");
	1197	+
	1198	+#if defined (JOB_CONTROL)
	1199	+ pipeline_pgrp = save_pgrp;
	1200	+ restore_pipeline (1);
	1201	+# if defined (PGRP_PIPE)
	1202	+ close_pgrp_pipe ();
	1203	+ restore_pgrp_pipe (save_pipe);
	1204	+# endif
	1205	+ if (pipeline_pgrp > 0)
	1206	+ give_terminal_to (pipeline_pgrp, 1);
	1207	+ notify_and_cleanup ();
	1208	+#endif
	1209
	1210	#if defined (DEBUGGER)
	1211	/* If we're in the debugger and the DEBUG trap returns 2 while we're in

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