the shell decides it's being run by ssh and runs bashrc (only if
SSH_SOURCE_BASHRC is defined). Non-zero while the startup files
are being run. Not used by any other part of the shell yet.
+
+ 6/12
+ ----
+arrayfunc.h
+ - new inline functions to convert between assignment flags (ASS_*),
+ array value flags (AV_*), and valid array flags (VA_*)
+
+shell.h
+ - include arrayfunc.h after subst.h and variables.h so all the values
+ for the new inline functions are available
+
+variables.c
+ - bind_int_variable: use convert_assign_flags_to_validarray_flags and
+ convert_assign_flags_to_arrayval flags instead of inline assignments
+
+builtins/common.c
+ - builtin_bind_variable: use convert_assign_flags_to_validarray_flags
+ instead of inline assignments
+
+arrayfunc.c
+ - assign_array_element: use convert_assign_flags_to_arrayval_flags
+ instead of inline code
+ - assign_array_element_internal: use convert_assign_flags_to_arrayval_flags
+ to pass the right values to array_expand_index
+ - assign_array_var_from_string: since expand_compound_array_assignment
+ performs one round of expansion on the subscripts, make sure to add
+ ASS_NOEXPAND (if assoc_expand_once is set) and ASS_ALLOWALLSUB to the
+ flags we pass to assign_compound_array_list
+ - unbind_array_index: use convert_validarray_flags_to_array_value_flags
+ to pass the right values to array_expand_index
+ - array_expand_index: uncomment code tagged for bash-5.3 that checks
+ AV_NOEXPAND and suppresses call to expand_arith_string if it's set.
+ This set of changes extends assoc_expand_once to indexed arrays
+
+arrayfunc.[ch],execute_cmd.c,expr.c,test.c,builtins/common.c,builtins/mkbuiltins.c
+builtins/declare.def,builtins/set.def,builtins/shopt.def
+ - array_expand_once: new name for internal assoc_expand_once variable
+
+ 6/13
+ ----
+builtins/shopt.def
+ - array_expand_once: new option, replaces assoc_expand_once
+
+doc/bash.1,doc/bashref.texi
+ - array_expand_once: document new shopt option
tests/array29.sub f
tests/array30.sub f
tests/array31.sub f
+tests/array32.sub f
tests/array-at-star f
tests/array2.right f
tests/assoc.tests f
# define RBRACK ']'
#endif
-/* This variable means to not expand associative array subscripts more than
- once, when performing variable expansion. */
-int assoc_expand_once = 0;
-
-/* Ditto for indexed array subscripts -- currently unused */
+/* This variable means to not expand associative or indexed array subscripts
+ more than once, when performing variable expansion. */
int array_expand_once = 0;
static SHELL_VAR *bind_array_var_internal (SHELL_VAR *, arrayind_t, char *, const char *, int);
int sublen, isassoc, avflags;
SHELL_VAR *entry;
- avflags = 0;
- if (flags & ASS_NOEXPAND)
- avflags |= AV_NOEXPAND;
- if (flags & ASS_ONEWORD)
- avflags |= AV_ONEWORD;
+ avflags = convert_assign_flags_to_arrayval_flags (flags);
vname = array_variable_name (name, avflags, &sub, &sublen);
if (vname == 0)
return entry;
}
+/* Assign VALUE to the index computed from SUB of length SUBLEN of array
+ VNAME. NAME is the complete variable reference. FLAGS are ASS_ assignment
+ flags. ENTRY is the SHELL_VAR corresponding to VNAME. The caller
+ initializes ESTATEP, and we set it to the values we compute. */
static SHELL_VAR *
assign_array_element_internal (SHELL_VAR *entry, const char *name, char *vname,
char *sub, int sublen, const char *value,
}
else
{
- ind = array_expand_index (entry, sub, sublen, 0);
+ /* convert ASS_ flags to AV_FLAGS here */
+ int avflags;
+
+ avflags = convert_assign_flags_to_arrayval_flags (flags);
+ ind = array_expand_index (entry, sub, sublen, avflags);
/* negative subscripts to indexed arrays count back from end */
if (entry && ind < 0)
ind = (array_p (entry) ? array_max_index (array_cell (entry)) : 0) + 1 + ind;
if (array_p (var))
{
- ind = array_expand_index (var, w + 1, len, 0);
+ int avflags;
+
+ /* convert ASS_ FLAGS to AV_ flags here */
+ avflags = convert_assign_flags_to_arrayval_flags (flags);
+ ind = array_expand_index (var, w + 1, len, avflags);
/* negative subscripts to indexed arrays count back from end */
if (ind < 0)
ind = array_max_index (array_cell (var)) + 1 + ind;
}
/* Perform a compound array assignment: VAR->name=( VALUE ). The
- VALUE has already had the parentheses stripped. */
+ VALUE has already had the parentheses stripped. FLAGS are ASS_
+ assignment flags. */
SHELL_VAR *
assign_array_var_from_string (SHELL_VAR *var, char *value, int flags)
{
WORD_LIST *nlist;
+ int aflags;
if (value == 0)
return var;
nlist = expand_compound_array_assignment (var, value, flags);
- assign_compound_array_list (var, nlist, flags);
+ /* This is were we set ASS_NOEXPAND and ASS_ONEWORD if we need to, since
+ expand_compound_array_assignment performs word expansions. Honors
+ array_expand_once; allows @ and * as associative array keys. */
+ aflags = flags | (array_expand_once ? ASS_NOEXPAND : 0) | ASS_ALLOWALLSUB;
+ assign_compound_array_list (var, nlist, aflags);
if (nlist)
dispose_words (nlist);
arrayind_t ind;
char *akey;
ARRAY_ELEMENT *ae;
+ int avflags;
/* Assume that the caller (unset_builtin) passes us a null-terminated SUB,
so we don't have to use VA_ONEWORD or parse the subscript again with
}
/* Fall through for behavior 3 */
}
- ind = array_expand_index (var, sub, strlen (sub) + 1, 0);
+
+ avflags = convert_validarray_flags_to_arrayval_flags (flags);
+ ind = array_expand_index (var, sub, strlen (sub) + 1, avflags);
/* negative subscripts to indexed arrays count back from end */
if (ind < 0)
ind = array_max_index (array_cell (var)) + 1 + ind;
else /* array_p (var) == 0 && assoc_p (var) == 0 */
{
akey = this_command_name;
- ind = array_expand_index (var, sub, strlen (sub) + 1, 0);
+ avflags = convert_validarray_flags_to_arrayval_flags (flags);
+ ind = array_expand_index (var, sub, strlen (sub) + 1, avflags);
this_command_name = akey;
if (ind == 0)
{
return tokenize_array_reference (name, flags, (char **)NULL);
}
-/* Expand the array index beginning at S and extending LEN characters. */
+/* Expand the array index beginning at S and extending LEN characters. FLAGS
+ are AV_ flags saying how to compute the array value. */
arrayind_t
array_expand_index (SHELL_VAR *var, const char *s, int len, int flags)
{
exp = (char *)xmalloc (len);
strncpy (exp, s, len - 1);
exp[len - 1] = '\0';
-#if 0 /* TAG: maybe bash-5.2 */
+#if 1 /* TAG: bash-5.3 */
+#if 0
+ if (shell_compatibility_level <= 52 || (flags & AV_NOEXPAND) == 0)
+#else
if ((flags & AV_NOEXPAND) == 0)
+#endif
t = expand_arith_string (exp, Q_DOUBLE_QUOTES|Q_ARITH|Q_ARRAYSUB); /* XXX - Q_ARRAYSUB for future use */
else
t = exp;
#if defined (ARRAY_VARS)
-/* This variable means to not expand associative array subscripts more than
- once, when performing variable expansion. */
-extern int assoc_expand_once;
-
-/* The analog for indexed array subscripts */
+/* This variable means to not expand associative or indexed array subscripts
+ more than once, when performing variable expansion. */
extern int array_expand_once;
/* Flags for array_value_internal and callers array_value/get_array_value; also
#endif
+/* Functions to convert from other flag values to AV_ array variable flags */
+
+#if defined (ASS_NOEXPAND)
+static inline int
+convert_assign_flags_to_arrayval_flags (int aflags)
+{
+ int avflags;
+
+ avflags = 0;
+ if (aflags & ASS_NOEXPAND)
+ avflags |= AV_NOEXPAND;
+ if (aflags & ASS_ONEWORD)
+ avflags |= AV_ONEWORD;
+ if (aflags & ASS_NOEVAL)
+ avflags |= AV_NOEXPAND;
+ if (aflags & ASS_ALLOWALLSUB)
+ avflags |= AV_ATSTARKEYS;
+ return avflags;
+}
+#endif
+
+#if defined (VA_NOEXPAND)
+static inline int
+convert_validarray_flags_to_arrayval_flags (int vflags)
+{
+ int avflags;
+
+ if (vflags & VA_NOEXPAND)
+ avflags |= AV_NOEXPAND;
+ if (vflags & VA_ONEWORD)
+ avflags |= AV_ONEWORD;
+ if (vflags & VA_ALLOWALL)
+ avflags |= AV_ATSTARKEYS;
+ return avflags;
+}
+#endif
+
+#if defined (ASS_NOEXPAND)
+static inline int
+convert_assign_flags_to_validarray_flags (int flags)
+{
+ int vflags;
+
+ vflags = 0;
+ if (flags & ASS_NOEXPAND)
+ vflags |= VA_NOEXPAND;
+ if (flags & ASS_ONEWORD)
+ vflags |= VA_ONEWORD;
+ if (flags & ASS_ALLOWALLSUB)
+ vflags |= VA_ALLOWALL;
+ return vflags;
+}
+#endif
+
#endif /* !_ARRAYFUNC_H_ */
#if defined (ARRAY_VARS)
/* Callers are responsible for calling this with array references that have
already undergone valid_array_reference checks (read, printf). */
- vflags = assoc_expand_once ? (VA_NOEXPAND|VA_ONEWORD) : 0;
- bindflags = flags | (assoc_expand_once ? ASS_NOEXPAND : 0) | ASS_ALLOWALLSUB;
- if (flags & ASS_NOEXPAND)
- vflags |= VA_NOEXPAND;
- if (flags & ASS_ONEWORD)
- vflags |= VA_ONEWORD;
+ /* XXX - should we unconditionally set ASS_NOEXPAND if the shell
+ compatibility level is > 52? */
+ bindflags = flags | (array_expand_once ? ASS_NOEXPAND : 0) | ASS_ALLOWALLSUB;
+ vflags = convert_assign_flags_to_validarray_flags (flags);
+ vflags |= array_expand_once ? (VA_NOEXPAND|VA_ONEWORD) : 0;
if (valid_array_reference (name, vflags) == 0)
v = bind_variable (name, value, flags);
vflags = baseflags;
- /* Don't require assoc_expand_once if we have an argument that's already
+ /* Don't require array_expand_once if we have an argument that's already
passed through valid_array_reference and been expanded once. That
doesn't protect it from normal expansions like word splitting, so
proper quoting is still required. */
# if 0
/* This is a little sketchier but handles quoted arguments. */
- if (assoc_expand_once && (t = strchr (w->word, '[')) && t[strlen(t) - 1] == ']')
+ if (array_expand_once && (t = strchr (w->word, '[')) && t[strlen(t) - 1] == ']')
vflags |= VA_ONEWORD|VA_NOEXPAND;
# endif
{
int oa;
- oa = assoc_expand_once;
+ oa = array_expand_once;
if (shell_compatibility_level > 51) /* XXX - internal */
{
if (uwp)
- unwind_protect_int (assoc_expand_once);
- assoc_expand_once = nval;
+ unwind_protect_int (array_expand_once);
+ array_expand_once = nval;
}
return oa;
}
#if defined (ARRAY_VARS)
#define SET_VFLAGS(wordflags, vflags, bindflags) \
do { \
- vflags = assoc_expand_once ? VA_NOEXPAND : 0; \
- bindflags = assoc_expand_once ? ASS_NOEXPAND : 0; \
- if (assoc_expand_once && (wordflags & W_ARRAYREF)) \
+ vflags = array_expand_once ? VA_NOEXPAND : 0; \
+ bindflags = array_expand_once ? ASS_NOEXPAND : 0; \
+ if (array_expand_once && (wordflags & W_ARRAYREF)) \
vflags |= VA_ONEWORD|VA_NOEXPAND; \
if (vflags & VA_NOEXPAND) \
bindflags |= ASS_NOEXPAND; \
name = savestring (list->word->word);
wflags = list->word->flags;
#if defined (ARRAY_VARS)
- assoc_noexpand = assoc_expand_once && (wflags & W_ASSIGNMENT);
+ assoc_noexpand = array_expand_once && (wflags & W_ASSIGNMENT);
#else
assoc_noexpand = 0;
#endif
};
/* The builtin commands that can take array references as arguments and pay
- attention to `assoc_expand_once'. These are the ones that don't assign
+ attention to `array_expand_once'. These are the ones that don't assign
values, but need to avoid double expansions. */
char *arrayvar_builtins[] =
{
nameref = 0;
#if defined (ARRAY_VARS)
- base_vflags = assoc_expand_once ? VA_NOEXPAND : 0;
+ base_vflags = array_expand_once ? VA_NOEXPAND : 0;
#endif
while (list)
#endif
#if defined (ARRAY_VARS)
-extern int assoc_expand_once;
extern int array_expand_once;
int expand_once_flag;
#endif
#endif
#if defined (ARRAY_VARS)
-static int set_assoc_expand (char *, int);
+static int set_array_expand (char *, int);
#endif
#if defined (EXTENDED_GLOB)
} shopt_vars[] = {
{ "autocd", &autocd, (shopt_set_func_t *)NULL },
#if defined (ARRAY_VARS)
- { "assoc_expand_once", &expand_once_flag, set_assoc_expand },
+ { "array_expand_once", &expand_once_flag, set_array_expand },
+ { "assoc_expand_once", &expand_once_flag, set_array_expand },
#endif
{ "cdable_vars", &cdable_vars, (shopt_set_func_t *)NULL },
{ "cdspell", &cdspelling, (shopt_set_func_t *)NULL },
glob_always_skip_dot_and_dotdot = 1; /* new default as of bash-5.2 */
#if defined (ARRAY_VARS)
- expand_once_flag = assoc_expand_once = 0;
+ expand_once_flag = array_expand_once = 0;
#endif
#if defined (HISTORY)
#if defined (ARRAY_VARS)
static int
-set_assoc_expand (char *option_name, int mode)
+set_array_expand (char *option_name, int mode)
{
#if 0 /* leave this disabled */
if (shell_compatibility_level <= 51)
#endif
- assoc_expand_once = expand_once_flag;
+ array_expand_once = expand_once_flag;
return 0;
}
#endif
The list of s\bsh\bho\bop\bpt\bt options is:
- a\bas\bss\bso\boc\bc_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be
+ a\bar\brr\bra\bay\by_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be
If set, the shell suppresses multiple evaluation of as-
- sociative array subscripts during arithmetic expression
- evaluation, while executing builtins that can perform
- variable assignments, and while executing builtins that
- perform array dereferencing.
+ sociative and indexed array subscripts during arithmetic
+ expression evaluation, while executing builtins that can
+ perform variable assignments, and while executing
+ builtins that perform array dereferencing.
+ a\bas\bss\bso\boc\bc_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be
+ Deprecated; a synonym for a\bar\brr\bra\bay\by_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be.
a\bau\but\bto\boc\bcd\bd If set, a command name that is the name of a directory
is executed as if it were the argument to the c\bcd\bd com-
mand. This option is only used by interactive shells.
-GNU Bash 5.2 2023 May 23 BASH(1)
+GNU Bash 5.2 2023 June 13 BASH(1)
.\" Case Western Reserve University
.\" chet.ramey@case.edu
.\"
-.\" Last Change: Tue May 23 11:29:30 EDT 2023
+.\" Last Change: Tue Jun 13 10:33:46 EDT 2023
.\"
.\" bash_builtins, strip all but Built-Ins section
.if \n(zZ=1 .ig zZ
.if \n(zY=1 .ig zY
-.TH BASH 1 "2023 May 23" "GNU Bash 5.2"
+.TH BASH 1 "2023 June 13" "GNU Bash 5.2"
.\"
.\" There's some problem with having a `@'
.\" in a tagged paragraph with the BSD man macros.
.if n .sp 1v
.PD 0
.TP 8
-.B assoc_expand_once
-If set, the shell suppresses multiple evaluation of associative array
-subscripts during arithmetic expression evaluation, while executing
+.B array_expand_once
+If set, the shell suppresses multiple evaluation of
+associative and indexed array subscripts
+during arithmetic expression evaluation, while executing
builtins that can perform variable assignments,
and while executing builtins that perform array dereferencing.
.TP 8
+.B assoc_expand_once
+Deprecated; a synonym for \fBarray_expand_once\fP.
+.TP 8
.B autocd
If set, a command name that is the name of a directory is executed as if
it were the argument to the \fBcd\fP command.
</HEAD>
<BODY><TABLE WIDTH=100%>
<TR>
-<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2023 May 23<TH ALIGN=RIGHT width=33%>BASH(1)
+<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2023 June 13<TH ALIGN=RIGHT width=33%>BASH(1)
</TR>
</TABLE>
<BR><A HREF="#index">Index</A>
<DL COMPACT>
-<DT><B>assoc_expand_once</B>
+<DT><B>array_expand_once</B>
<DD>
-If set, the shell suppresses multiple evaluation of associative array
-subscripts during arithmetic expression evaluation, while executing
+If set, the shell suppresses multiple evaluation of
+associative and indexed array subscripts
+during arithmetic expression evaluation, while executing
builtins that can perform variable assignments,
and while executing builtins that perform array dereferencing.
+<DT><B>assoc_expand_once</B>
+
+<DD>
+Deprecated; a synonym for <B>array_expand_once</B>.
<DT><B>autocd</B>
<DD>
<HR>
<TABLE WIDTH=100%>
<TR>
-<TH ALIGN=LEFT width=33%>GNU Bash 5.2<TH ALIGN=CENTER width=33%>2023 May 23<TH ALIGN=RIGHT width=33%>BASH(1)
+<TH ALIGN=LEFT width=33%>GNU Bash 5.2<TH ALIGN=CENTER width=33%>2023 June 13<TH ALIGN=RIGHT width=33%>BASH(1)
</TR>
</TABLE>
<HR>
<DT><A HREF="#lbDI">BUGS</A><DD>
</DL>
<HR>
-This document was created by man2html from /usr/local/src/bash/bash-20230522/doc/bash.1.<BR>
-Time: 23 May 2023 11:31:51 EDT
+This document was created by man2html from /usr/local/src/bash/bash-20230612/doc/bash.1.<BR>
+Time: 13 June 2023 10:42:12 EDT
</BODY>
</HTML>
This is bash.info, produced by makeinfo version 6.8 from bashref.texi.
This text is a brief description of the features that are present in the
-Bash shell (version 5.2, 23 May 2023).
+Bash shell (version 5.2, 13 June 2023).
- This is Edition 5.2, last updated 23 May 2023, of 'The GNU Bash
+ This is Edition 5.2, last updated 13 June 2023, of 'The GNU Bash
Reference Manual', for 'Bash', Version 5.2.
Copyright (C) 1988-2023 Free Software Foundation, Inc.
*************
This text is a brief description of the features that are present in the
-Bash shell (version 5.2, 23 May 2023). The Bash home page is
+Bash shell (version 5.2, 13 June 2023). The Bash home page is
<http://www.gnu.org/software/bash/>.
- This is Edition 5.2, last updated 23 May 2023, of 'The GNU Bash
+ This is Edition 5.2, last updated 13 June 2023, of 'The GNU Bash
Reference Manual', for 'Bash', Version 5.2.
Bash contains features that appear in other popular shells, and some
The list of 'shopt' options is:
- 'assoc_expand_once'
+ 'array_expand_once'
If set, the shell suppresses multiple evaluation of
- associative array subscripts during arithmetic expression
- evaluation, while executing builtins that can perform variable
- assignments, and while executing builtins that perform array
- dereferencing.
+ associative and indexed array subscripts during arithmetic
+ expression evaluation, while executing builtins that can
+ perform variable assignments, and while executing builtins
+ that perform array dereferencing.
+
+ 'assoc_expand_once'
+ Deprecated; a synonym for 'array_expand_once'.
'autocd'
If set, a command name that is the name of a directory is
\1f
Tag Table:
-Node: Top\7f884
-Node: Introduction\7f2791
-Node: What is Bash?\7f3004
-Node: What is a shell?\7f4115
-Node: Definitions\7f6650
-Node: Basic Shell Features\7f9598
-Node: Shell Syntax\7f10814
-Node: Shell Operation\7f11837
-Node: Quoting\7f13127
-Node: Escape Character\7f14428
-Node: Single Quotes\7f14910
-Node: Double Quotes\7f15255
-Node: ANSI-C Quoting\7f16530
-Node: Locale Translation\7f17839
-Node: Creating Internationalized Scripts\7f19147
-Node: Comments\7f23261
-Node: Shell Commands\7f23876
-Node: Reserved Words\7f24811
-Node: Simple Commands\7f25564
-Node: Pipelines\7f26215
-Node: Lists\7f29211
-Node: Compound Commands\7f31003
-Node: Looping Constructs\7f32012
-Node: Conditional Constructs\7f34504
-Node: Command Grouping\7f48989
-Node: Coprocesses\7f50464
-Node: GNU Parallel\7f53124
-Node: Shell Functions\7f54038
-Node: Shell Parameters\7f61920
-Node: Positional Parameters\7f66305
-Node: Special Parameters\7f67204
-Node: Shell Expansions\7f70415
-Node: Brace Expansion\7f72539
-Node: Tilde Expansion\7f75270
-Node: Shell Parameter Expansion\7f77888
-Node: Command Substitution\7f96287
-Node: Arithmetic Expansion\7f99748
-Node: Process Substitution\7f100713
-Node: Word Splitting\7f101830
-Node: Filename Expansion\7f103875
-Node: Pattern Matching\7f106805
-Node: Quote Removal\7f111804
-Node: Redirections\7f112096
-Node: Executing Commands\7f121786
-Node: Simple Command Expansion\7f122453
-Node: Command Search and Execution\7f124560
-Node: Command Execution Environment\7f126944
-Node: Environment\7f129976
-Node: Exit Status\7f131636
-Node: Signals\7f133417
-Node: Shell Scripts\7f136863
-Node: Shell Builtin Commands\7f139887
-Node: Bourne Shell Builtins\7f141922
-Node: Bash Builtins\7f164253
-Node: Modifying Shell Behavior\7f196249
-Node: The Set Builtin\7f196591
-Node: The Shopt Builtin\7f207186
-Node: Special Builtins\7f223095
-Node: Shell Variables\7f224071
-Node: Bourne Shell Variables\7f224505
-Node: Bash Variables\7f226606
-Node: Bash Features\7f260668
-Node: Invoking Bash\7f261678
-Node: Bash Startup Files\7f267688
-Node: Interactive Shells\7f272816
-Node: What is an Interactive Shell?\7f273224
-Node: Is this Shell Interactive?\7f273870
-Node: Interactive Shell Behavior\7f274682
-Node: Bash Conditional Expressions\7f278308
-Node: Shell Arithmetic\7f282947
-Node: Aliases\7f285905
-Node: Arrays\7f288796
-Node: The Directory Stack\7f295356
-Node: Directory Stack Builtins\7f296137
-Node: Controlling the Prompt\7f300394
-Node: The Restricted Shell\7f303356
-Node: Bash POSIX Mode\7f305963
-Node: Shell Compatibility Mode\7f321753
-Node: Job Control\7f329994
-Node: Job Control Basics\7f330451
-Node: Job Control Builtins\7f335450
-Node: Job Control Variables\7f341242
-Node: Command Line Editing\7f342395
-Node: Introduction and Notation\7f344063
-Node: Readline Interaction\7f345683
-Node: Readline Bare Essentials\7f346871
-Node: Readline Movement Commands\7f348657
-Node: Readline Killing Commands\7f349614
-Node: Readline Arguments\7f351532
-Node: Searching\7f352573
-Node: Readline Init File\7f354756
-Node: Readline Init File Syntax\7f356014
-Node: Conditional Init Constructs\7f379802
-Node: Sample Init File\7f383995
-Node: Bindable Readline Commands\7f387116
-Node: Commands For Moving\7f388317
-Node: Commands For History\7f390365
-Node: Commands For Text\7f395356
-Node: Commands For Killing\7f399002
-Node: Numeric Arguments\7f402032
-Node: Commands For Completion\7f403168
-Node: Keyboard Macros\7f407356
-Node: Miscellaneous Commands\7f408041
-Node: Readline vi Mode\7f414076
-Node: Programmable Completion\7f414980
-Node: Programmable Completion Builtins\7f422757
-Node: A Programmable Completion Example\7f433742
-Node: Using History Interactively\7f438987
-Node: Bash History Facilities\7f439668
-Node: Bash History Builtins\7f442670
-Node: History Interaction\7f447691
-Node: Event Designators\7f451308
-Node: Word Designators\7f452659
-Node: Modifiers\7f454416
-Node: Installing Bash\7f456221
-Node: Basic Installation\7f457355
-Node: Compilers and Options\7f461074
-Node: Compiling For Multiple Architectures\7f461812
-Node: Installation Names\7f463501
-Node: Specifying the System Type\7f465607
-Node: Sharing Defaults\7f466321
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-Node: Optional Features\7f467946
-Node: Reporting Bugs\7f479162
-Node: Major Differences From The Bourne Shell\7f480493
-Node: GNU Free Documentation License\7f497339
-Node: Indexes\7f522513
-Node: Builtin Index\7f522964
-Node: Reserved Word Index\7f530062
-Node: Variable Index\7f532507
-Node: Function Index\7f549492
-Node: Concept Index\7f563273
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<!-- This text is a brief description of the features that are present in
-the Bash shell (version 5.2, 23 May 2023).
+the Bash shell (version 5.2, 13 June 2023).
-This is Edition 5.2, last updated 23 May 2023,
+This is Edition 5.2, last updated 13 June 2023,
of The GNU Bash Reference Manual,
for Bash, Version 5.2.
<span id="Bash-Features-1"></span><h1 class="top">Bash Features</h1>
<p>This text is a brief description of the features that are present in
-the Bash shell (version 5.2, 23 May 2023).
+the Bash shell (version 5.2, 13 June 2023).
The Bash home page is <a href="http://www.gnu.org/software/bash/">http://www.gnu.org/software/bash/</a>.
</p>
-<p>This is Edition 5.2, last updated 23 May 2023,
+<p>This is Edition 5.2, last updated 13 June 2023,
of <cite>The GNU Bash Reference Manual</cite>,
for <code>Bash</code>, Version 5.2.
</p>
</p>
<p>The list of <code>shopt</code> options is:
</p><dl compact="compact">
-<dt><span><code>assoc_expand_once</code></span></dt>
-<dd><p>If set, the shell suppresses multiple evaluation of associative array
-subscripts during arithmetic expression evaluation, while executing
+<dt><span><code>array_expand_once</code></span></dt>
+<dd><p>If set, the shell suppresses multiple evaluation of
+associative and indexed array subscripts
+during arithmetic expression evaluation, while executing
builtins that can perform variable assignments,
and while executing builtins that perform array dereferencing.
</p>
</dd>
+<dt><span><code>assoc_expand_once</code></span></dt>
+<dd><p>Deprecated; a synonym for <code>array_expand_once</code>.
+</p>
+</dd>
<dt><span><code>autocd</code></span></dt>
<dd><p>If set, a command name that is the name of a directory is executed as if
it were the argument to the <code>cd</code> command.
bashref.texi.
This text is a brief description of the features that are present in the
-Bash shell (version 5.2, 23 May 2023).
+Bash shell (version 5.2, 13 June 2023).
- This is Edition 5.2, last updated 23 May 2023, of 'The GNU Bash
+ This is Edition 5.2, last updated 13 June 2023, of 'The GNU Bash
Reference Manual', for 'Bash', Version 5.2.
Copyright (C) 1988-2023 Free Software Foundation, Inc.
*************
This text is a brief description of the features that are present in the
-Bash shell (version 5.2, 23 May 2023). The Bash home page is
+Bash shell (version 5.2, 13 June 2023). The Bash home page is
<http://www.gnu.org/software/bash/>.
- This is Edition 5.2, last updated 23 May 2023, of 'The GNU Bash
+ This is Edition 5.2, last updated 13 June 2023, of 'The GNU Bash
Reference Manual', for 'Bash', Version 5.2.
Bash contains features that appear in other popular shells, and some
The list of 'shopt' options is:
- 'assoc_expand_once'
+ 'array_expand_once'
If set, the shell suppresses multiple evaluation of
- associative array subscripts during arithmetic expression
- evaluation, while executing builtins that can perform variable
- assignments, and while executing builtins that perform array
- dereferencing.
+ associative and indexed array subscripts during arithmetic
+ expression evaluation, while executing builtins that can
+ perform variable assignments, and while executing builtins
+ that perform array dereferencing.
+
+ 'assoc_expand_once'
+ Deprecated; a synonym for 'array_expand_once'.
'autocd'
If set, a command name that is the name of a directory is
\1f
Tag Table:
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The list of @code{shopt} options is:
@table @code
-@item assoc_expand_once
-If set, the shell suppresses multiple evaluation of associative array
-subscripts during arithmetic expression evaluation, while executing
+@item array_expand_once
+If set, the shell suppresses multiple evaluation of
+associative and indexed array subscripts
+during arithmetic expression evaluation, while executing
builtins that can perform variable assignments,
and while executing builtins that perform array dereferencing.
+@item assoc_expand_once
+Deprecated; a synonym for @code{array_expand_once}.
+
@item autocd
If set, a command name that is the name of a directory is executed as if
it were the argument to the @code{cd} command.
The list of s\bsh\bho\bop\bpt\bt options is:
- a\bas\bss\bso\boc\bc_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be
+ a\bar\brr\bra\bay\by_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be
If set, the shell suppresses multiple evaluation of as-
- sociative array subscripts during arithmetic expression
- evaluation, while executing builtins that can perform
- variable assignments, and while executing builtins that
- perform array dereferencing.
+ sociative and indexed array subscripts during arithmetic
+ expression evaluation, while executing builtins that can
+ perform variable assignments, and while executing
+ builtins that perform array dereferencing.
+ a\bas\bss\bso\boc\bc_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be
+ Deprecated; a synonym for a\bar\brr\bra\bay\by_\b_e\bex\bxp\bpa\ban\bnd\bd_\b_o\bon\bnc\bce\be.
a\bau\but\bto\boc\bcd\bd If set, a command name that is the name of a directory
is executed as if it were the argument to the c\bcd\bd com-
mand. This option is only used by interactive shells.
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-(xceeds the number)-.15 F(of positional parameters.)184 372 Q F1(sour)
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34.8 R(The)5.434 E F1<ad61>2.934 E F0(and)
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(ailed command is part of the com-)-.1 F .388
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-Q F1<ad6b>144 132 Q F0
-(The maximum number of kqueues that may be allocated)180 1
32 Q F1<ad6c>
-144 144 Q F0(The maximum size that may be lock)180 144 Q(ed into memory)
--.1 E F1<ad6d>144 156 Q F0(The maximum resident set size \(man)180 156 Q
-2.5(ys)-.15 G(ystems do not honor this limit\))-2.5 E F1<ad6e>144 168 Q
+120 Q F1<ad69>144 132 Q F0(The maximum number of pending signals)180 132
+Q F1<ad6b>144 144 Q F0
+(The maximum number of kqueues that may be allocated)180 1
44 Q F1<ad6c>
+144 156 Q F0(The maximum size that may be lock)180 156 Q(ed into memory)
+-.1 E F1<ad6d>144 168 Q F0(The maximum resident set size \(man)180 168 Q
+2.5(ys)-.15 G(ystems do not honor this limit\))-2.5 E F1<ad6e>144 180 Q
F0 .791(The maximum number of open \214le descriptors \(most systems do\
- not allo)180 168 R 3.29(wt)-.25 G .79(his v)-3.29 F .79(alue to)-.25 F
-(be set\))180 180 Q F1<ad70>144 192 Q F0
-(The pipe size in 512-byte blocks \(this may not be set\))180 192 Q F1
-<ad71>144 204 Q F0(The maximum number of bytes in POSIX message queues)
-180 204 Q F1<ad72>144 216 Q F0
-(The maximum real-time scheduling priority)180 216 Q F1<ad73>144 228 Q
-F0(The maximum stack size)180 228 Q F1<ad74>144 240 Q F0
-(The maximum amount of cpu time in seconds)180 240 Q F1<ad75>144 252 Q
-F0(The maximum number of processes a)180 252 Q -.25(va)-.2 G
-(ilable to a single user).25 E F1<ad76>144 264 Q F0 .47
-(The maximum amount of virtual memory a)180 264 R -.25(va)-.2 G .47
-(ilable to the shell and, on some systems, to).25 F(its children)180 276
-Q F1<ad78>144 288 Q F0(The maximum number of \214le locks)180 288 Q F1
-<ad50>144 300 Q F0(The maximum number of pseudoterminals)180 300 Q F1
-<ad52>144 312 Q F0(The maximum time a real-time process can run before \
-blocking, in microseconds)180 312 Q F1<ad54>144 324 Q F0
-(The maximum number of threads)180 324 Q(If)144 340.8 Q/F2 10
+ not allo)180 180 R 3.29(wt)-.25 G .79(his v)-3.29 F .79(alue to)-.25 F
+(be set\))180 192 Q F1<ad70>144 204 Q F0
+(The pipe size in 512-byte blocks \(this may not be set\))180 204 Q F1
+<ad71>144 216 Q F0(The maximum number of bytes in POSIX message queues)
+180 216 Q F1<ad72>144 228 Q F0
+(The maximum real-time scheduling priority)180 228 Q F1<ad73>144 240 Q
+F0(The maximum stack size)180 240 Q F1<ad74>144 252 Q F0
+(The maximum amount of cpu time in seconds)180 252 Q F1<ad75>144 264 Q
+F0(The maximum number of processes a)180 264 Q -.25(va)-.2 G
+(ilable to a single user).25 E F1<ad76>144 276 Q F0 .47
+(The maximum amount of virtual memory a)180 276 R -.25(va)-.2 G .47
+(ilable to the shell and, on some systems, to).25 F(its children)180 288
+Q F1<ad78>144 300 Q F0(The maximum number of \214le locks)180 300 Q F1
+<ad50>144 312 Q F0(The maximum number of pseudoterminals)180 312 Q F1
+<ad52>144 324 Q F0(The maximum time a real-time process can run before \
+blocking, in microseconds)180 324 Q F1<ad54>144 336 Q F0
+(The maximum number of threads)180 336 Q(If)144 352.8 Q/F2 10
/Times-Italic@0 SF(limit)3.058 E F0 .468(is gi)3.648 F -.15(ve)-.25 G
.468(n, and the).15 F F1<ad61>2.968 E F0 .468(option is not used,)2.968
F F2(limit)2.968 E F0 .468(is the ne)2.968 F 2.968(wv)-.25 G .468
(alue of the speci\214ed resource.)-3.218 F(If)5.468 E .044
-(no option is gi)144 3
52.8 R -.15(ve)-.25 G .044(n, then).15 F F1<ad66>
+(no option is gi)144 3
64.8 R -.15(ve)-.25 G .044(n, then).15 F F1<ad66>
2.544 E F0 .045(is assumed.)2.545 F -1.11(Va)5.045 G .045
(lues are in 1024-byte increments, e)1.11 F .045(xcept for)-.15 F F1
<ad74>2.545 E F0 2.545(,w)C .045(hich is)-2.545 F .67(in seconds;)144
-3
64.8 R F1<ad52>3.17 E F0 3.17(,w)C .67(hich is in microseconds;)-3.17 F
+3
76.8 R F1<ad52>3.17 E F0 3.17(,w)C .67(hich is in microseconds;)-3.17 F
F1<ad70>3.17 E F0 3.17(,w)C .67(hich is in units of 512-byte blocks;)
-3.17 F F1<ad50>3.17 E F0(,)A F1<ad54>3.17 E F0(,)A F1<ad62>3.17 E F0(,)
-A F1<ad6b>144 3
76.8 Q F0(,)A F1<ad6e>3.736 E F0 3.736(,a)C(nd)-3.736 E
+A F1<ad6b>144 3
88.8 Q F0(,)A F1<ad6e>3.736 E F0 3.736(,a)C(nd)-3.736 E
F1<ad75>3.736 E F0 3.736(,w)C 1.236(hich are unscaled v)-3.736 F 1.236
(alues; and, when in posix mode,)-.25 F F1<ad63>3.736 E F0(and)3.736 E
F1<ad66>3.736 E F0 3.736(,w)C 1.237(hich are in)-3.736 F .239
-(512-byte increments.)144 388.8 R .238
+(512-byte increments.)144 400.8 R .238
(The return status is 0 unless an in)5.239 F -.25(va)-.4 G .238
(lid option or ar).25 F .238(gument is supplied, or an)-.18 F
-(error occurs while setting a ne)144 400.8 Q 2.5(wl)-.25 G(imit.)-2.5 E
-F1(umask)108 4
17.6 Q F0([)2.5 E F1<ad70>A F0 2.5(][)C F1<ad53>-2.5 E F0
+(error occurs while setting a ne)144 412.8 Q 2.5(wl)-.25 G(imit.)-2.5 E
+F1(umask)108 4
29.6 Q F0([)2.5 E F1<ad70>A F0 2.5(][)C F1<ad53>-2.5 E F0
2.5(][)C F2(mode)-2.5 E F0(])A .18
-(The user \214le-creation mask is set to)144 429.6 R F2(mode)3.06 E F0
+(The user \214le-creation mask is set to)144 441.6 R F2(mode)3.06 E F0
5.18(.I).18 G(f)-5.18 E F2(mode)3.06 E F0(be)2.86 E .18
(gins with a digit, it is interpreted as an octal)-.15 F .066(number; o\
therwise it is interpreted as a symbolic mode mask similar to that acce\
-pted by)144 441.6 R F2 -.15(ch)2.566 G(mod).15 E F0(\(1\).).77 E(If)144
-453.6 Q F2(mode)3.262 E F0 .382(is omitted, the current v)3.062 F .382
+pted by)144 453.6 R F2 -.15(ch)2.566 G(mod).15 E F0(\(1\).).77 E(If)144
+465.6 Q F2(mode)3.262 E F0 .382(is omitted, the current v)3.062 F .382
(alue of the mask is printed.)-.25 F(The)5.382 E F1<ad53>2.882 E F0 .382
(option causes the mask to be)2.882 F .547
-(printed in symbolic form; the def)144 465.6 R .547
+(printed in symbolic form; the def)144 477.6 R .547
(ault output is an octal number)-.1 F 5.547(.I)-.55 G 3.047(ft)-5.547 G
(he)-3.047 E F1<ad70>3.047 E F0 .547(option is supplied, and)3.047 F F2
-(mode)144.38 477.6 Q F0 .551
+(mode)144.38 489.6 Q F0 .551
(is omitted, the output is in a form that may be reused as input.)3.231
-F .552(The return status is 0 if the)5.552 F(mode w)144 489.6 Q
+F .552(The return status is 0 if the)5.552 F(mode w)144 501.6 Q
(as successfully changed or if no)-.1 E F2(mode)2.5 E F0(ar)2.5 E
(gument w)-.18 E(as supplied, and f)-.1 E(alse otherwise.)-.1 E F1
-(unalias)108 506.4 Q F0<5bad>2.5 E F1(a)A F0 2.5(][)C F2(name)-2.5 E F0
-(...])2.5 E(Remo)144 518.4 Q 1.058 -.15(ve e)-.15 H(ach).15 E F2(name)
+(unalias)108 518.4 Q F0<5bad>2.5 E F1(a)A F0 2.5(][)C F2(name)-2.5 E F0
+(...])2.5 E(Remo)144 530.4 Q 1.058 -.15(ve e)-.15 H(ach).15 E F2(name)
3.258 E F0 .758(from the list of de\214ned aliases.)3.258 F(If)5.758 E
F1<ad61>3.258 E F0 .757(is supplied, all alias de\214nitions are re-)
-3.258 F(mo)144 530.4 Q -.15(ve)-.15 G 2.5(d. The).15 F(return v)2.5 E
+3.258 F(mo)144 542.4 Q -.15(ve)-.15 G 2.5(d. The).15 F(return v)2.5 E
(alue is true unless a supplied)-.25 E F2(name)2.86 E F0
-(is not a de\214ned alias.)2.68 E F1(unset)108 547.2 Q F0<5bad>2.5 E F1
+(is not a de\214ned alias.)2.68 E F1(unset)108 559.2 Q F0<5bad>2.5 E F1
(fv)A F0 2.5(][)C<ad>-2.5 E F1(n)A F0 2.5(][)C F2(name)-2.5 E F0(...])
-2.5 E -.15(Fo)144 559.2 S 3.803(re).15 G(ach)-3.803 E F2(name)4.163 E F0
+2.5 E -.15(Fo)144 571.2 S 3.803(re).15 G(ach)-3.803 E F2(name)4.163 E F0
3.803(,r).18 G(emo)-3.803 E 1.603 -.15(ve t)-.15 H 1.303
(he corresponding v).15 F 1.303(ariable or function.)-.25 F 1.303
(If the)6.303 F F1<ad76>3.804 E F0 1.304(option is gi)3.804 F -.15(ve)
--.25 G 1.304(n, each).15 F F2(name)144.36 571.2 Q F0 .465
+-.25 G 1.304(n, each).15 F F2(name)144.36 583.2 Q F0 .465
(refers to a shell v)3.145 F .464(ariable, and that v)-.25 F .464
(ariable is remo)-.25 F -.15(ve)-.15 G 2.964(d. Read-only).15 F -.25(va)
-2.964 G .464(riables may not be un-).25 F 2.768(set. If)144 583.2 R F1
+2.964 G .464(riables may not be un-).25 F 2.768(set. If)144 595.2 R F1
<ad66>2.768 E F0 .269(is speci\214ed, each)2.768 F F2(name)3.129 E F0
.269(refers to a shell function, and the function de\214nition is remo)
-2.949 F -.15(ve)-.15 G(d.).15 E .404(If the)144
595.2 R F1<ad6e>2.904 E
+2.949 F -.15(ve)-.15 G(d.).15 E .404(If the)144
607.2 R F1<ad6e>2.904 E
F0 .404(option is supplied, and)2.904 F F2(name)2.904 E F0 .404(is a v)
2.904 F .404(ariable with the)-.25 F F2(namer)2.904 E(ef)-.37 E F0
(attrib)2.904 E(ute,)-.2 E F2(name)2.904 E F0 .403(will be unset)2.904 F
-.719(rather than the v)144 607.2 R .719(ariable it references.)-.25 F F1
+.719(rather than the v)144 619.2 R .719(ariable it references.)-.25 F F1
<ad6e>5.719 E F0 .719(has no ef)3.219 F .719(fect if the)-.25 F F1<ad66>
3.22 E F0 .72(option is supplied.)3.22 F .72(If no options)5.72 F .737
-(are supplied, each)144 619.2 R F2(name)3.237 E F0 .737(refers to a v)
+(are supplied, each)144 631.2 R F2(name)3.237 E F0 .737(refers to a v)
3.237 F .737(ariable; if there is no v)-.25 F .736
(ariable by that name, a function with)-.25 F 1.761(that name, if an)144
-631.2 R 3.061 -.65(y, i)-.15 H 4.261(su).65 G 4.261(nset. Each)-4.261 F
+643.2 R 3.061 -.65(y, i)-.15 H 4.261(su).65 G 4.261(nset. Each)-4.261 F
1.761(unset v)4.261 F 1.761(ariable or function is remo)-.25 F -.15(ve)
-.15 G 4.262(df).15 G 1.762(rom the en)-4.262 F(vironment)-.4 E 3.172
-(passed to subsequent commands.)144 643.2 R 3.172(If an)8.172 F 5.672
+(passed to subsequent commands.)144 655.2 R 3.172(If an)8.172 F 5.672
(yo)-.15 G(f)-5.672 E/F3 9/Times-Bold@0 SF -.27(BA)5.672 G(SH_ALIASES)
.27 E/F4 9/Times-Roman@0 SF(,)A F3 -.27(BA)5.421 G(SH_ARGV0).27 E F4(,)A
-F3 -.27(BA)5.421 G(SH_CMDS).27 E F4(,)A F3 -.27(BA)144 655.2 S
+F3 -.27(BA)5.421 G(SH_CMDS).27 E F4(,)A F3 -.27(BA)144 667.2 S
(SH_COMMAND).27 E F4(,)A F3 -.27(BA)11.481 G(SH_SUBSHELL).27 E F4(,)A F3
-.27(BA)11.482 G(SHPID).27 E F4(,)A F3(COMP_W)11.482 E(ORDBREAKS)-.09 E
F4(,)A F3(DIRST)11.482 E -.495(AC)-.81 G(K).495 E F4(,)A F3(EPOCHREAL)
-144 667.2 Q(TIME)-.828 E F4(,)A F3(EPOCHSECONDS)2.67 E F4(,)A F3(FUNCN)
+144 679.2 Q(TIME)-.828 E F4(,)A F3(EPOCHSECONDS)2.67 E F4(,)A F3(FUNCN)
2.67 E(AME)-.18 E F4(,)A F3(GR)2.67 E(OUPS)-.27 E F4(,)A F3(HISTCMD)2.67
E F4(,)A F3(LINENO)2.67 E F4(,)A F3(RANDOM)2.67 E F4(,)A F3(SECONDS)144
-679.2 Q F4(,)A F0(or)4.029 E F3(SRANDOM)4.279 E F0 1.779(are unset, the)
+691.2 Q F4(,)A F0(or)4.029 E F3(SRANDOM)4.279 E F0 1.779(are unset, the)
4.029 F 4.279(yl)-.15 G 1.779(ose their special properties, e)-4.279 F
-.15(ve)-.25 G 4.279(ni).15 G 4.28(ft)-4.279 G(he)-4.28 E 4.28(ya)-.15 G
-1.78(re subse-)-4.28 F(quently reset.)144 691.2 Q(The e)5 E
+1.78(re subse-)-4.28 F(quently reset.)144 703.2 Q(The e)5 E
(xit status is true unless a)-.15 E F2(name)2.86 E F0
(is readonly or may not be unset.)2.68 E(GNU Bash 5.2)72 768 Q
(2023 January 27)141.79 E(25)190.95 E 0 Cg EP
%!PS-Adobe-3.0
%%Creator: groff version 1.22.4
-%%CreationDate: Mon May 22 09:42:13 2023
+%%CreationDate: Tue Jun 13 10:42:36 2023
%%DocumentNeededResources: font Times-Roman
%%+ font Times-Bold
%%DocumentSuppliedResources: procset grops 1.22 4
Copyright (C) 1988-2023 Free Software Foundation, Inc.
@end ignore
-@set LASTCHANGE Tue May 23 11:29:48 EDT 2023
+@set LASTCHANGE Tue Jun 13 10:36:04 EDT 2023
@set EDITION 5.2
@set VERSION 5.2
-@set UPDATED 23 May 2023
-@set UPDATED-MONTH May 2023
+@set UPDATED 13 June 2023
+@set UPDATED-MONTH June 2023
result = unary_test (cond->op->word, arg1, varflag) ? EXECUTION_SUCCESS : EXECUTION_FAILURE;
#if defined (ARRAY_VARS)
if (varop)
- assoc_expand_once = oa;
+ array_expand_once = oa;
#endif
if (arg1 != nullstr)
free (arg1);
#if defined (ARRAY_VARS)
/* Set W_ARRAYREF on words that are valid array references to a builtin that
- accepts them. This is intended to completely replace assoc_expand_once in
+ accepts them. This is intended to completely replace array_expand_once in
time. */
static void
fix_arrayref_words (WORD_LIST *words)
return; /* XXX */
#if defined (ARRAY_VARS)
- aflags = (assoc_expand_once && already_expanded) ? ASS_NOEXPAND : 0;
+ aflags = (array_expand_once && already_expanded) ? ASS_NOEXPAND : 0;
aflags |= ASS_ALLOWALLSUB; /* allow assoc[@]=value */
#else
aflags = 0;
isassoc = 0;
entry = 0;
- if (assoc_expand_once & already_expanded)
+ if (array_expand_once & already_expanded)
{
*cp = '\0';
isassoc = legal_identifier (vp) && (entry = find_variable (vp)) && assoc_p (entry);
*cp = '['; /* ] */
}
- flags = (isassoc && assoc_expand_once && already_expanded) ? VA_NOEXPAND : 0;
+ flags = (isassoc && array_expand_once && already_expanded) ? VA_NOEXPAND : 0;
return (skipsubscript (cp, 0, flags));
}
initial_depth = expr_depth;
#if defined (ARRAY_VARS)
- tflag = (assoc_expand_once && already_expanded) ? AV_NOEXPAND : 0; /* for a start */
+ tflag = (array_expand_once && already_expanded) ? AV_NOEXPAND : 0; /* for a start */
#endif
/* [[[[[ */
#include "general.h"
#include "error.h"
#include "variables.h"
-#include "arrayfunc.h"
#include "quit.h"
#include "maxpath.h"
#include "unwind_prot.h"
#include "make_cmd.h"
#include "ocache.h"
#include "subst.h"
+#include "arrayfunc.h"
#include "sig.h"
#include "pathnames.h"
#include "externs.h"
case 'v':
#if defined (ARRAY_VARS)
- aflags = assoc_expand_once ? AV_NOEXPAND : 0;
+ aflags = array_expand_once ? AV_NOEXPAND : 0;
if (valid_array_reference (arg, aflags))
{
char *t;
declare -a aa=([0]="/homes/cj/Desktop:/homes/cj/Library:/homes/cj/Documents")
declare -a aa=([0]="/homes/cj/Desktop:/homes/cj/Library:/homes/cj/Documents" [1]="/homes/cj/Applications")
declare -a aa=([0]="/homes/cj/Desktop:/homes/cj/Library:/homes/cj/Documents" [1]="/homes/cj/Applications")
+./array32.sub: line 7: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 8: declare: a: not found
+./array32.sub: line 11: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 12: declare: a: not found
+./array32.sub: line 16: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a=([0]="hi")
+./array32.sub: line 22: declare: a: not found
+./array32.sub: line 25: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 26: declare: a: not found
+./array32.sub: line 29: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a
+./array32.sub: line 37: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a
+./array32.sub: line 44: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -ai a
+./array32.sub: line 52: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 53: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 55: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 62: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a
+./array32.sub: line 64: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a
+./array32.sub: line 67: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a
+./array32.sub: line 72: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+./array32.sub: line 78: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a=()
+./array32.sub: line 82: $(echo INJECTION! >&2 ; echo 0): arithmetic syntax error: operand expected (error token is "$(echo INJECTION! >&2 ; echo 0)")
+declare -a a=()
${THIS_SH} ./array29.sub
${THIS_SH} ./array30.sub
${THIS_SH} ./array31.sub
+${THIS_SH} ./array32.sub
--- /dev/null
+# change behavior of shell builtins to extend assoc_expand_once to indexed
+# arrays
+
+export subscript='$(echo INJECTION! >&2 ; echo 0)'
+shopt -s array_expand_once
+
+printf -v a["$subscript"] %s hi
+declare -p a
+unset a
+
+printf -v "a[$subscript]" %s hi
+declare -p a
+
+a[0]=hi
+
+unset a["$subscript"]
+declare -p a
+
+unset a
+
+unset a["$subscript"]
+declare -p a
+
+unset -v a
+read a["$subscript"] <<<hi
+declare -p a
+
+declare -a a
+read a["$subscript"] <<<hi
+declare -p a
+
+unset -v a
+
+declare -a a
+
+{ sleep 1; exit 12; } & bgpid=$!
+wait -n -p a["$subscript"] $bgpid
+
+declare -p a
+
+unset -v a
+declare -a a
+
+declare -i a["$subscript"]=42
+declare -p a
+
+# this still won't work because the quotes prevent it from being recognized as
+# an assignment statement
+#declare -i "a[$subscript]"=42
+#declare -p a
+
+test -v a["$subscript"] && echo set
+[ -v a["$subscript"] ] && echo set
+
+let a["$subscript"]+=1
+unset -v a
+
+# these are all already arithmetic expression errors
+
+declare -a a
+
+(( a[$subscript]++ ))
+declare -p a
+: $(( a[$subscript]++ ))
+declare -p a
+
+a[$subscript]=hi
+declare -p a
+
+# length shortcuts for unset variables, so give it a value
+a[0]=zero
+echo ${#a[$subscript]}
+
+unset -v a
+
+# compound assignments should not perform double expansion
+
+a=( [$subscript]=hi )
+declare -p a
+
+declare -a a
+a=( [$subscript]=hi )
+declare -p a
+
+unset -v a
+
shopt: usage: shopt [-pqsu] [-o] [optname ...]
--
shopt -u autocd
+shopt -u array_expand_once
shopt -u assoc_expand_once
shopt -u cdable_vars
shopt -s cdspell
shopt -s sourcepath
--
shopt -u autocd
+shopt -u array_expand_once
shopt -u assoc_expand_once
shopt -u cdable_vars
shopt -u checkhash
shopt -u xpg_echo
--
autocd off
+array_expand_once off
assoc_expand_once off
cdable_vars off
checkhash off
isint = isarr = implicitarray = 0;
#if defined (ARRAY_VARS)
/* Don't rely on VA_NOEXPAND being 1, set it explicitly */
- vflags = (flags & ASS_NOEXPAND) ? VA_NOEXPAND : 0;
- if (flags & ASS_ONEWORD)
- vflags |= VA_ONEWORD;
+ vflags = convert_assign_flags_to_validarray_flags (flags);
if (valid_array_reference (lhs, vflags))
{
isarr = 1;
- avflags = 0;
- /* Common code to translate between assignment and reference flags. */
- if (flags & ASS_NOEXPAND)
- avflags |= AV_NOEXPAND;
- if (flags & ASS_ONEWORD)
- avflags |= AV_ONEWORD;
+ avflags = convert_assign_flags_to_arrayval_flags (flags);
v = array_variable_part (lhs, avflags, (char **)0, (int *)0);
}
else if (legal_identifier (lhs) == 0)
projects / thirdparty / bash.git / commitdiff
