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commit bash-20121228 snapshot
This commit is contained in:
Chet Ramey
+494
@@ -0,0 +1,494 @@
|
||||
This document details the changes between this version, bash-4.3-alpha,
|
||||
and the previous version, bash-4.2-release.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. Fixed several bugs concerning incomplete bracket expressions in filename
|
||||
generation (globbing) patterns.
|
||||
|
||||
b. Fixed a bug with single quotes and WORD in ${param op WORD} when running
|
||||
in Posix mode.
|
||||
|
||||
c. Fixed a bug that caused the pattern removal and pattern substitution word
|
||||
expansions and case statement word expansion to not match the empty string.
|
||||
|
||||
d. Fixed a bug that caused the tzset() function to not work after changing
|
||||
the TZ enviroment variable.
|
||||
|
||||
e. Fixed a bug that caused the RHS of an assignment statement to undergo
|
||||
word splitting when it contained an unquoted $@.
|
||||
|
||||
f. Fixed bugs that caused the shell to not react to a SIGINT sent while
|
||||
waiting for a child process to exit.
|
||||
|
||||
g. Bash doesn't try to run things in a signal handler context when it gets a
|
||||
signal (SIGINT/SIGHUP/etc) while reading input using readline but still
|
||||
be responsive to terminating signals.
|
||||
|
||||
h. Fixed a bug that caused bash to go into an infinite loop if a filename
|
||||
to be matched contained an invalid multibyte character.
|
||||
|
||||
i. Fixed a bug that caused PS4 to end up being truncated if it is longer
|
||||
than 128 bytes.
|
||||
|
||||
j. Fixed a bug that caused brace expansion to not skip over double-quoted
|
||||
command substitution.
|
||||
|
||||
k. System-specific updates for: DJGPP, HP/UX, Mac OS X
|
||||
|
||||
l. Fixed a bug in displaying commands that caused redirections to be associated
|
||||
with the wrong part of the command.
|
||||
|
||||
m. Fixed the coproc cleanup to unset the appropriate shell variables when a
|
||||
coproc terminates.
|
||||
|
||||
n. Fixed a bug that caused `fc' to dump core due to incorrect calculation of
|
||||
the last history entry.
|
||||
|
||||
o. Added workarounds for FreeBSD's implementation of faccessat/eaccess and
|
||||
`test -x'.
|
||||
|
||||
p. Fixed a bug that caused the shell to not match patterns containing
|
||||
control-A.
|
||||
|
||||
q. Fixed a bug that could result in doubled error messages when the `printf'
|
||||
builtin got a write error.
|
||||
|
||||
r. Fixed a bug that caused the shell to not correctly expand words containing
|
||||
multiple consecutive quoted empty strings (""""""aa).
|
||||
|
||||
s. Fixed a bug that caused the shell to not correctly parse multi-line
|
||||
process substitutions containing comments and quoted strings.
|
||||
|
||||
t. Fixed a problem with the bash malloc's internal idea of the top of the
|
||||
memory heap that resulted in incorrect decisions to try to reduce the
|
||||
break and give memory back to the kernel.
|
||||
|
||||
u. There are changes to the expansions peformed on compound array assignments,
|
||||
in an effort to make foo=( [ind1]=bar [ind2]=baz ) identical to
|
||||
foo[ind1]=bar foo[ind2]=baz.
|
||||
|
||||
v. Bash now reports an error if `read -a name' is used when `name' is an
|
||||
existing associative array.
|
||||
|
||||
w. Fixed a bug that allowed an attempted assignment to a readonly variable
|
||||
in an arithmetic expression to not return failure.
|
||||
|
||||
x. Fixed several bugs that caused completion functions to be invoked even when
|
||||
the cursor was before the first word in the command.
|
||||
|
||||
y. Fixed a bug that caused parsing a command substitution to overwrite the
|
||||
parsing state associated with the complete input line.
|
||||
|
||||
z. Fixed several bugs with the built-in snprintf replacement and field widths
|
||||
and floating point.
|
||||
|
||||
aa. Fixed a bug that caused incorrect offset calculations and input buffer
|
||||
corruption when reading files longer than 2^31 bytes.
|
||||
|
||||
bb. Fixed several bugs where bash performed arithmetic evaluation in contexts
|
||||
where evaluation is suppressed.
|
||||
|
||||
cc. Fixed a bug that caused bash to close FIFOs used for process substitution
|
||||
too early when a shell function was executing, but protect against using
|
||||
all file descriptors when the shell functions are invoked inside loops.
|
||||
|
||||
dd. Added checks for printable (and non-printable) multibyte characters for
|
||||
use in error messages.
|
||||
|
||||
ee. Fixed a bug that caused ^O (operate-and-get-next) to not work correctly
|
||||
at the end of the history list.
|
||||
|
||||
ff. Fixed a bug that caused command-oriented history to incorrectly combine
|
||||
here documents into one line.
|
||||
|
||||
gg. Fixed a bug that caused importing SHELLOPTS from the environment into a
|
||||
Posix-mode shell to print an error message and refuse to parse it.
|
||||
|
||||
hh. Fixed a bug that caused the shell to delete an extra history entry when
|
||||
using `history -s'.
|
||||
|
||||
ii. Fixed a bug that caused floating-point exceptions and overflow errors
|
||||
for the / and % arithmetic operators when using INTMAX_MIN and -1.
|
||||
|
||||
jj. Fixed a bug that caused parsing errors when reading an arithmetic for
|
||||
loop inside a command substitution.
|
||||
|
||||
kk. Fixed a bug that caused a readonly function to be unset when unset was
|
||||
called without the -f or -v option.
|
||||
|
||||
ll. Fixed several bugs in the code that quotes characters special to regular
|
||||
expressions when used in a quoted string on the RHS of the =~ operator
|
||||
to the [[ command.
|
||||
|
||||
mm. Fixed a bug that caused redirections to fail because the file descriptor
|
||||
limit was set to a value less than 10.
|
||||
|
||||
nn. Fixed a bug that caused the `read' builtin to execute code in a signal
|
||||
handler context if read timed out.
|
||||
|
||||
oo. Fixed a bug that caused extended globbing patterns to not match files
|
||||
beginning with `.' correctly when a `.' was explicitly supplied in the
|
||||
pattern.
|
||||
|
||||
pp. Fixed a bug that caused key sequences longer than two characters to not
|
||||
work when used with `bind -x'.
|
||||
|
||||
qq. Fixed a bug that resulted in redefined functions having the wrong source
|
||||
file names in BASH_SOURCE.
|
||||
|
||||
rr. Fixed a bug that caused the read builtin to assign null strings to variables
|
||||
when using `read -N', which caused core dumps when referenced
|
||||
|
||||
ss. Fixed a bug that caused `bash -m script' to not enable job control while
|
||||
running the script.
|
||||
|
||||
tt. Fixed a bug that caused `printf -v var' to dump core when used with the
|
||||
%b format code.
|
||||
|
||||
uu. Fixed a bug that caused the shell to exit with the wrong status if -e was
|
||||
active and the shell exited on a substitution error.
|
||||
|
||||
vv. Fixed a bug that caused the shell to seg fault if an array variable with
|
||||
the same name as an existing associative array was implicitly created by
|
||||
an assignment (declare a[n]=b).
|
||||
|
||||
ww. Fixed a bug that caused a redirection to misbehave if the number specified
|
||||
for a file descriptor overflows an intmax_t.
|
||||
|
||||
xx. Fixed several bugs with the handling of valid and invalid unicode character
|
||||
values when used with the \u and \U escape sequences to printf and $'...'.
|
||||
|
||||
yy. Fixed a bug that caused tildes to not be escaped in expanded filenames,
|
||||
making them subject to later expansion.
|
||||
|
||||
zz. When using the pattern substitution word expansion, bash now runs the
|
||||
replacement string through quote removal, since it allows quotes in that
|
||||
string to act as escape characters. This is not backwards compatible, so
|
||||
it can be disabled by setting the bash compatibility mode to 4.2.
|
||||
|
||||
aaa. Fixed the rest of the cases where the shell runs non-allowed code in a
|
||||
signal handler context.
|
||||
|
||||
bbb. Fixed a bug that caused spurious DEL characters (\177) to appear in
|
||||
double-quoted expansion where the RHS is evaluated to the empty string.
|
||||
|
||||
ccc. Fixed a bug that caused the use of the shell's internal random number
|
||||
generator for temporary file names to perturb the random number
|
||||
sequence.
|
||||
|
||||
ddd. Fixed several bugs that caused `declare -g' to not set the right global
|
||||
variables or to misbehave when declaring global indexed arrays.
|
||||
|
||||
eee. Fixed a logic bug that caused extended globbing in a multibyte locale to
|
||||
cause failures when using the pattern substititution word expansions.
|
||||
|
||||
fff. Fixed a bug that caused the `lastpipe' option to corrupt the file
|
||||
descriptor used to read the script.
|
||||
|
||||
ggg. Fixed a bug that causes the shell to delete DEL characters in the
|
||||
expanded value of variables used in the same quoted string as variables
|
||||
that expand to nothing.
|
||||
|
||||
hhh. Fixed a bug that caused the shell to assign the wrong value from an
|
||||
assignment like (( x=7 )) when `x' was an existing array variable.
|
||||
|
||||
iii. Fixed a bug that caused the shell to misbehave when generating sequences
|
||||
and the boundary values overflow an intmax_t.
|
||||
|
||||
jjj. Fixed a bug caused expansion errors if an expansion of "$@" appeared
|
||||
next to another expansion (e.g.. "${@}${x}").
|
||||
|
||||
kkk. Fixed a potential buffer overflow bug when performing /dev/fd expansion.
|
||||
|
||||
lll. Fixed a bug that resulted in an extra semicolon being added to compound
|
||||
assignments when they were added to the history list.
|
||||
|
||||
mmm. Fixed a bug that caused mapfile to read one extra line from the input.
|
||||
|
||||
nnn. Fixed a bug that caused the mail checking code to use uninitialized
|
||||
values.
|
||||
|
||||
ooo. Fixed a bug that prevented history timestamps from being saved if the
|
||||
history comment character is unset.
|
||||
|
||||
ppp. Fixed a bug that caused the case-modifying expansions to not work with
|
||||
multibyte characters.
|
||||
|
||||
qqq. Fixed a bug that caused the edit-and-execute bindable readline command
|
||||
to see the wrong data if invoked in the middle of a multi-line quoted
|
||||
string.
|
||||
|
||||
rrr. Fixed a bug that resulted in the shell returning the wrong exit status
|
||||
for a background command on systems that recycle PIDs very quickly.
|
||||
|
||||
sss. Fixed a bug that caused asynchronous group commands to not run any EXIT
|
||||
trap defined in the body of the command.
|
||||
|
||||
ttt. Fixed a bug that caused `eval "... ; return"' to not clean up properly.
|
||||
|
||||
uuu. Fixed a bug that caused the shell to dump core if `read' reads an escaped
|
||||
IFS whitespace character.
|
||||
|
||||
vvv. Fixed a bug that caused BASH_COMMAND to be set to an incorrect value when
|
||||
executing a (...) subshell.
|
||||
|
||||
www. Fixed a pointer aliasing bug with the token string in arithmetic
|
||||
evaluation.
|
||||
|
||||
xxx. Fixed a bug with parsing multi-line command substitutions when reading
|
||||
the `do' keyword followed by whitespace.
|
||||
|
||||
yyy. Fixed a bug that caused the shell to seg fault if the time given to the
|
||||
printf %(...)T format overflowed the value accepted by localtime(3).
|
||||
|
||||
zzz. Fixed a problem with displaying help topics in two columns when the
|
||||
translated text contained multibyte characters.
|
||||
|
||||
aaaa. Fixed a bug with the extended globbing pattern matcher where a `*' was
|
||||
followed by a negated extended glob pattern.
|
||||
|
||||
bbbb. Fixed a race condition with short-lived coproc creation and reaping that
|
||||
caused the child process to be reaped before the various coproc shell
|
||||
variables were initialized.
|
||||
|
||||
cccc. Fixed a bug where turning off `errexit' in command substitution subshells
|
||||
was not reflected in $SHELLOPTS.
|
||||
|
||||
dddd. Partially fixed an inconsistency in how the shell treated shell
|
||||
functions run from an EXIT trap.
|
||||
|
||||
eeee. Fixed a bug in how the shell invalidated FIFOs used for process
|
||||
substitution when executing a pipeline (once rather than in every child).
|
||||
|
||||
ffff. Fixed a bug that occurred when expanding a special variable ($@, $*)
|
||||
within double quotes and the expansion resulted in an empty string.
|
||||
|
||||
gggg. Fixed bugs with executing a SIGCHLD trap handler to make sure that it's
|
||||
executed once per exited child.
|
||||
|
||||
hhhh. Fixed a bug that caused `declare' and `test' to find variables that
|
||||
had been given attributes but not assigned values. Such variables are
|
||||
not set.
|
||||
|
||||
iiii. Fixed a bug that caused commands in process substitutions to not look in
|
||||
the local temporary environment when performing word expansions.
|
||||
|
||||
jjjj. Fixed several problems with globstar expansions (**/**) returning null
|
||||
filenames and multiple instances of the same pathname.
|
||||
|
||||
kkkk. Fixed an oversight that did not allow the exit status of `coproc' to
|
||||
be inverted using `!'.
|
||||
|
||||
llll. Fixed a bug that caused the -e option to be re-enabled using `set -e'
|
||||
even when executing in a context where -e is ignored.
|
||||
|
||||
mmmm. Fixed a (mostly theoretical) bug with input lines longer than SIZE_MAX.
|
||||
|
||||
2. Changes to Readline
|
||||
|
||||
a. Fixed a bug that did not allow the `dd', `cc', or `yy' vi editing mode
|
||||
commands to work on the entire line.
|
||||
|
||||
b. Fixed a bug that caused redisplay problems with prompts longer than 128
|
||||
characters and history searches.
|
||||
|
||||
c. Fixed a bug that caused readline to try and run code to modify its idea
|
||||
of the screen size in a signal handler context upon receiving a SIGWINCH.
|
||||
|
||||
d. Fixed a bug that caused the `meta' key to be enabled beyond the duration
|
||||
of an individual call top readline().
|
||||
|
||||
e. Added a workaround for a wcwidth bug in Mac OS X that caused readline's
|
||||
redisplay to mishandle zero-width combining characters.
|
||||
|
||||
f. Fixed a bug that caused readline to `forget' part of a key sequence when
|
||||
a multiple-key sequence caused it to break out of an incremental search.
|
||||
|
||||
g. Fixed bugs that caused readline to execute code in a signal handler
|
||||
context if interrupted while reading from the file system during completion.
|
||||
|
||||
h. Fixed a bug that caused readline to `forget' part of a key sequence when
|
||||
reading an unbound multi-character key sequence.
|
||||
|
||||
i. Fixed a bug that caused Readline's signal handlers to be installed beyond
|
||||
the bounds of a single call to readline().
|
||||
|
||||
j. Fixed a bug that caused the `.' command to not redo the most recent `R'
|
||||
command in vi mode.
|
||||
|
||||
k. Fixed a bug that caused ignoring case in completion matches to result in
|
||||
readline using the wrong match.
|
||||
|
||||
l. Paren matching now works in vi insert mode.
|
||||
|
||||
m. Fix menu-completion to make show-all-if-ambiguous and menu-complete-display-prefix
|
||||
work together.
|
||||
|
||||
n. Fixed a bug that didn't allow the `cc', `dd', or `yy' commands to be redone
|
||||
in vi editing mode.
|
||||
|
||||
o. Fixed a bug that caused the filename comparison code to not compare
|
||||
multibyte characters correctly when using case-sensitive or case-mapping
|
||||
comparisons.
|
||||
|
||||
p. Fixed the input reading loop to call the input hook function only when there
|
||||
is no terminal input available.
|
||||
|
||||
q. Fixed a bug that caused binding a macro to a multi-character key sequence
|
||||
where the sequence and macro value share a common prefix to not perform
|
||||
the macro replacement.
|
||||
|
||||
r. Fixed several redisplay errors with multibyte characters and prompts
|
||||
containing invisible characters when using horizontal scrolling.
|
||||
|
||||
3. New Features in Bash
|
||||
|
||||
a. The `helptopic' completion action now maps to all the help topics, not just
|
||||
the shell builtins.
|
||||
|
||||
b. The `help' builtin no longer does prefix substring matching, so `help read'
|
||||
does not match `readonly'.
|
||||
|
||||
c. The shell can be compiled to not display a message about processes that
|
||||
terminate due to SIGTERM.
|
||||
|
||||
d. Non-interactive shells now react to the setting of checkwinsize and set
|
||||
LINES and COLUMNS after a foreground job exits.
|
||||
|
||||
e. There is a new shell option, `globasciiranges', which, when set to on,
|
||||
forces globbing range comparisons to use character ordering as if they
|
||||
were run in the C locale.
|
||||
|
||||
f. There is a new shell option, `direxpand', which makes filename completion
|
||||
expand variables in directory names in the way bash-4.1 did.
|
||||
|
||||
g. In Posix mode, the `command' builtin does not change whether or not a
|
||||
builtin it shadows is treated as an assignment builtin.
|
||||
|
||||
h. The `return' and `exit' builtins accept negative exit status arguments.
|
||||
|
||||
i. The word completion code checks whether or not a filename containing a
|
||||
shell variable expands to a directory name and appends `/' to the word
|
||||
as appropriate. The same code expands shell variables in command names
|
||||
when performing command completion.
|
||||
|
||||
j. In Posix mode, it is now an error to attempt to define a shell function
|
||||
with the same name as a Posix special builtin.
|
||||
|
||||
k. When compiled for strict Posix conformance, history expansion is disabled
|
||||
by default.
|
||||
|
||||
l. The history expansion character (!) does not cause history expansion when
|
||||
followed by the closing quote in a double-quoted string.
|
||||
|
||||
m. `complete' and its siblings compgen/compopt now takes a new `-o noquote'
|
||||
option to inhibit quoting of the completions.
|
||||
|
||||
n. Setting HISTSIZE to a value less than zero causes the history list to be
|
||||
unlimited (setting it 0 zero disables the history list).
|
||||
|
||||
o. Setting HISTFILESIZE to a value less than zero causes the history file size
|
||||
to be unlimited (setting it to 0 causes the history file to be truncated
|
||||
to zero size).
|
||||
|
||||
p. The `read' builtin now skips NUL bytes in the input.
|
||||
|
||||
q. There is a new `bind -X' option to print all key sequences bound to Unix
|
||||
commands.
|
||||
|
||||
r. When in Posix mode, `read' is interruptible by a trapped signal. After
|
||||
running the trap handler, read returns 128+signal and throws away any
|
||||
partially-read input.
|
||||
|
||||
s. The command completion code skips whitespace and assignment statements
|
||||
before looking for the command name word to be completed.
|
||||
|
||||
t. The build process has a new mechanism for constructing separate help files
|
||||
that better reflects the current set of compilation options.
|
||||
|
||||
u. The -nt and -ot options to test now work with files with nanosecond
|
||||
timestamp resolution.
|
||||
|
||||
v. The shell saves the command history in any shell for which history is
|
||||
enabled and HISTFILE is set, not just interactive shells.
|
||||
|
||||
w. The shell has `nameref' variables and new -n(/+n) options to declare and
|
||||
unset to use them, and a `test -R' option to test for them.
|
||||
|
||||
x. The shell now allows assigning, referencing, and unsetting elements of
|
||||
indexed arrays using negative subscripts (a[-1]=2, echo ${a[-1]}) which
|
||||
count back from the last element of the array.
|
||||
|
||||
y. The {x}<word redirection feature now allows words like {array[ind]} and
|
||||
can use variables with special meanings to the shell (e.g., BASH_XTRACEFD).
|
||||
|
||||
z. There is a new CHILD_MAX special shell variable; its value controls the
|
||||
number of exited child statues the shell remembers.
|
||||
|
||||
aa. There is a new configuration option (--enable-direxpand-default) that
|
||||
causes the `direxpand' shell option to be enabled by default.
|
||||
|
||||
bb. Bash does not do anything special to ensure that the file descriptor
|
||||
assigned to X in {x}<foo remains open after the block containing it
|
||||
completes.
|
||||
|
||||
cc. The `wait' builtin has a new `-n' option to wait for the next child to
|
||||
change status.
|
||||
|
||||
dd. The `printf' %(...)T format specifier now uses the current time if no
|
||||
argument is supplied.
|
||||
|
||||
ee. There is a new variable, BASH_COMPAT, that controls the current shell
|
||||
compatibility level.
|
||||
|
||||
4. New Features in Readline
|
||||
|
||||
a. Readline is now more responsive to SIGHUP and other fatal signals when
|
||||
reading input from the terminal or performing word completion but no
|
||||
longer attempts to run any not-allowable functions from a signal handler
|
||||
context.
|
||||
|
||||
b. There are new bindable commands to search the history for the string of
|
||||
characters between the beginning of the line and the point
|
||||
(history-substring-search-forward, history-substring-search-backward)
|
||||
|
||||
c. Readline allows quoted strings as the values of variables when setting
|
||||
them with `set'. As a side effect, trailing spaces and tabs are ignored
|
||||
when setting a string variable's value.
|
||||
|
||||
d. The history library creates a backup of the history file when writing it
|
||||
and restores the backup on a write error.
|
||||
|
||||
e. New application-settable variable: rl_filename_stat_hook: a function called
|
||||
with a filename before using it in a call to stat(2). Bash uses it to
|
||||
expand shell variables so things like $HOME/Downloads have a slash
|
||||
appended.
|
||||
|
||||
f. New bindable function `print-last-kbd-macro', prints the most-recently-
|
||||
defined keyboard macro in a reusable format.
|
||||
|
||||
g. New user-settable variable `colored-stats', enables use of colored text
|
||||
to denote file types when displaying possible completions (colored analog
|
||||
of visible-stats).
|
||||
|
||||
h. New user-settable variable `keyseq-timout', acts as an inter-character
|
||||
timeout when reading input or incremental search strings.
|
||||
|
||||
i. New application-callable function: rl_clear_history. Clears the history list
|
||||
and frees all readline-associated private data.
|
||||
|
||||
j. New user-settable variable, show-mode-in-prompt, adds a characters to the
|
||||
beginning of the prompt indicating the current editing mode.
|
||||
|
||||
k. New application-settable variable: rl_input_available_hook; function to be
|
||||
called when readline detects there is data available on its input file
|
||||
descriptor.
|
||||
|
||||
l. Readline calls an application-set event hook (rl_event_hook) after it gets
|
||||
a signal while reading input (read returns -1/EINTR but readline does not
|
||||
handle the signal immediately) to allow the application to handle or
|
||||
otherwise note it.
|
||||
|
||||
m. If the user-settable variable `history-size' is set to a value less than
|
||||
0, the history list size is unlimited.
|
||||
+491
@@ -0,0 +1,491 @@
|
||||
This document details the changes between this version, bash-4.3-alpha,
|
||||
and the previous version, bash-4.2-release.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. Fixed several bugs concerning incomplete bracket expressions in filename
|
||||
generation (globbing) patterns.
|
||||
|
||||
b. Fixed a bug with single quotes and WORD in ${param op WORD} when running
|
||||
in Posix mode.
|
||||
|
||||
c. Fixed a bug that caused the pattern removal and pattern substitution word
|
||||
expansions and case statement word expansion to not match the empty string.
|
||||
|
||||
d. Fixed a bug that caused the tzset() function to not work after changing
|
||||
the TZ enviroment variable.
|
||||
|
||||
e. Fixed a bug that caused the RHS of an assignment statement to undergo
|
||||
word splitting when it contained an unquoted $@.
|
||||
|
||||
f. Fixed bugs that caused the shell to not react to a SIGINT sent while
|
||||
waiting for a child process to exit.
|
||||
|
||||
g. Bash doesn't try to run things in a signal handler context when it gets a
|
||||
signal (SIGINT/SIGHUP/etc) while reading input using readline but still
|
||||
be responsive to terminating signals.
|
||||
|
||||
h. Fixed a bug that caused bash to go into an infinite loop if a filename
|
||||
to be matched contained an invalid multibyte character.
|
||||
|
||||
i. Fixed a bug that caused PS4 to end up being truncated if it is longer
|
||||
than 128 bytes.
|
||||
|
||||
j. Fixed a bug that caused brace expansion to not skip over double-quoted
|
||||
command substitution.
|
||||
|
||||
k. System-specific updates for: DJGPP, HP/UX, Mac OS X
|
||||
|
||||
l. Fixed a bug in displaying commands that caused redirections to be associated
|
||||
with the wrong part of the command.
|
||||
|
||||
m. Fixed the coproc cleanup to unset the appropriate shell variables when a
|
||||
coproc terminates.
|
||||
|
||||
n. Fixed a bug that caused `fc' to dump core due to incorrect calculation of
|
||||
the last history entry.
|
||||
|
||||
o. Added workarounds for FreeBSD's implementation of faccessat/eaccess and
|
||||
`test -x'.
|
||||
|
||||
p. Fixed a bug that caused the shell to not match patterns containing
|
||||
control-A.
|
||||
|
||||
q. Fixed a bug that could result in doubled error messages when the `printf'
|
||||
builtin got a write error.
|
||||
|
||||
r. Fixed a bug that caused the shell to not correctly expand words containing
|
||||
multiple consecutive quoted empty strings (""""""aa).
|
||||
|
||||
s. Fixed a bug that caused the shell to not correctly parse multi-line
|
||||
process substitutions containing comments and quoted strings.
|
||||
|
||||
t. Fixed a problem with the bash malloc's internal idea of the top of the
|
||||
memory heap that resulted in incorrect decisions to try to reduce the
|
||||
break and give memory back to the kernel.
|
||||
|
||||
u. There are changes to the expansions peformed on compound array assignments,
|
||||
in an effort to make foo=( [ind1]=bar [ind2]=baz ) identical to
|
||||
foo[ind1]=bar foo[ind2]=baz.
|
||||
|
||||
v. Bash now reports an error if `read -a name' is used when `name' is an
|
||||
existing associative array.
|
||||
|
||||
w. Fixed a bug that allowed an attempted assignment to a readonly variable
|
||||
in an arithmetic expression to not return failure.
|
||||
|
||||
x. Fixed several bugs that caused completion functions to be invoked even when
|
||||
the cursor was before the first word in the command.
|
||||
|
||||
y. Fixed a bug that caused parsing a command substitution to overwrite the
|
||||
parsing state associated with the complete input line.
|
||||
|
||||
z. Fixed several bugs with the built-in snprintf replacement and field widths
|
||||
and floating point.
|
||||
|
||||
aa. Fixed a bug that caused incorrect offset calculations and input buffer
|
||||
corruption when reading files longer than 2^31 bytes.
|
||||
|
||||
bb. Fixed several bugs where bash performed arithmetic evaluation in contexts
|
||||
where evaluation is suppressed.
|
||||
|
||||
cc. Fixed a bug that caused bash to close FIFOs used for process substitution
|
||||
too early when a shell function was executing, but protect against using
|
||||
all file descriptors when the shell functions are invoked inside loops.
|
||||
|
||||
dd. Added checks for printable (and non-printable) multibyte characters for
|
||||
use in error messages.
|
||||
|
||||
ee. Fixed a bug that caused ^O (operate-and-get-next) to not work correctly
|
||||
at the end of the history list.
|
||||
|
||||
ff. Fixed a bug that caused command-oriented history to incorrectly combine
|
||||
here documents into one line.
|
||||
|
||||
gg. Fixed a bug that caused importing SHELLOPTS from the environment into a
|
||||
Posix-mode shell to print an error message and refuse to parse it.
|
||||
|
||||
hh. Fixed a bug that caused the shell to delete an extra history entry when
|
||||
using `history -s'.
|
||||
|
||||
ii. Fixed a bug that caused floating-point exceptions and overflow errors
|
||||
for the / and % arithmetic operators when using INTMAX_MIN and -1.
|
||||
|
||||
jj. Fixed a bug that caused parsing errors when reading an arithmetic for
|
||||
loop inside a command substitution.
|
||||
|
||||
kk. Fixed a bug that caused a readonly function to be unset when unset was
|
||||
called without the -f or -v option.
|
||||
|
||||
ll. Fixed several bugs in the code that quotes characters special to regular
|
||||
expressions when used in a quoted string on the RHS of the =~ operator
|
||||
to the [[ command.
|
||||
|
||||
mm. Fixed a bug that caused redirections to fail because the file descriptor
|
||||
limit was set to a value less than 10.
|
||||
|
||||
nn. Fixed a bug that caused the `read' builtin to execute code in a signal
|
||||
handler context if read timed out.
|
||||
|
||||
oo. Fixed a bug that caused extended globbing patterns to not match files
|
||||
beginning with `.' correctly when a `.' was explicitly supplied in the
|
||||
pattern.
|
||||
|
||||
pp. Fixed a bug that caused key sequences longer than two characters to not
|
||||
work when used with `bind -x'.
|
||||
|
||||
qq. Fixed a bug that resulted in redefined functions having the wrong source
|
||||
file names in BASH_SOURCE.
|
||||
|
||||
rr. Fixed a bug that caused the read builtin to assign null strings to variables
|
||||
when using `read -N', which caused core dumps when referenced
|
||||
|
||||
ss. Fixed a bug that caused `bash -m script' to not enable job control while
|
||||
running the script.
|
||||
|
||||
tt. Fixed a bug that caused `printf -v var' to dump core when used with the
|
||||
%b format code.
|
||||
|
||||
uu. Fixed a bug that caused the shell to exit with the wrong status if -e was
|
||||
active and the shell exited on a substitution error.
|
||||
|
||||
vv. Fixed a bug that caused the shell to seg fault if an array variable with
|
||||
the same name as an existing associative array was implicitly created by
|
||||
an assignment (declare a[n]=b).
|
||||
|
||||
ww. Fixed a bug that caused a redirection to misbehave if the number specified
|
||||
for a file descriptor overflows an intmax_t.
|
||||
|
||||
xx. Fixed several bugs with the handling of valid and invalid unicode character
|
||||
values when used with the \u and \U escape sequences to printf and $'...'.
|
||||
|
||||
yy. Fixed a bug that caused tildes to not be escaped in expanded filenames,
|
||||
making them subject to later expansion.
|
||||
|
||||
zz. When using the pattern substitution word expansion, bash now runs the
|
||||
replacement string through quote removal, since it allows quotes in that
|
||||
string to act as escape characters. This is not backwards compatible, so
|
||||
it can be disabled by setting the bash compatibility mode to 4.2.
|
||||
|
||||
aaa. Fixed the rest of the cases where the shell runs non-allowed code in a
|
||||
signal handler context.
|
||||
|
||||
bbb. Fixed a bug that caused spurious DEL characters (\177) to appear in
|
||||
double-quoted expansion where the RHS is evaluated to the empty string.
|
||||
|
||||
ccc. Fixed a bug that caused the use of the shell's internal random number
|
||||
generator for temporary file names to perturb the random number
|
||||
sequence.
|
||||
|
||||
ddd. Fixed several bugs that caused `declare -g' to not set the right global
|
||||
variables or to misbehave when declaring global indexed arrays.
|
||||
|
||||
eee. Fixed a logic bug that caused extended globbing in a multibyte locale to
|
||||
cause failures when using the pattern substititution word expansions.
|
||||
|
||||
fff. Fixed a bug that caused the `lastpipe' option to corrupt the file
|
||||
descriptor used to read the script.
|
||||
|
||||
ggg. Fixed a bug that causes the shell to delete DEL characters in the
|
||||
expanded value of variables used in the same quoted string as variables
|
||||
that expand to nothing.
|
||||
|
||||
hhh. Fixed a bug that caused the shell to assign the wrong value from an
|
||||
assignment like (( x=7 )) when `x' was an existing array variable.
|
||||
|
||||
iii. Fixed a bug that caused the shell to misbehave when generating sequences
|
||||
and the boundary values overflow an intmax_t.
|
||||
|
||||
jjj. Fixed a bug caused expansion errors if an expansion of "$@" appeared
|
||||
next to another expansion (e.g.. "${@}${x}").
|
||||
|
||||
kkk. Fixed a potential buffer overflow bug when performing /dev/fd expansion.
|
||||
|
||||
lll. Fixed a bug that resulted in an extra semicolon being added to compound
|
||||
assignments when they were added to the history list.
|
||||
|
||||
mmm. Fixed a bug that caused mapfile to read one extra line from the input.
|
||||
|
||||
nnn. Fixed a bug that caused the mail checking code to use uninitialized
|
||||
values.
|
||||
|
||||
ooo. Fixed a bug that prevented history timestamps from being saved if the
|
||||
history comment character is unset.
|
||||
|
||||
ppp. Fixed a bug that caused the case-modifying expansions to not work with
|
||||
multibyte characters.
|
||||
|
||||
qqq. Fixed a bug that caused the edit-and-execute bindable readline command
|
||||
to see the wrong data if invoked in the middle of a multi-line quoted
|
||||
string.
|
||||
|
||||
rrr. Fixed a bug that resulted in the shell returning the wrong exit status
|
||||
for a background command on systems that recycle PIDs very quickly.
|
||||
|
||||
sss. Fixed a bug that caused asynchronous group commands to not run any EXIT
|
||||
trap defined in the body of the command.
|
||||
|
||||
ttt. Fixed a bug that caused `eval "... ; return"' to not clean up properly.
|
||||
|
||||
uuu. Fixed a bug that caused the shell to dump core if `read' reads an escaped
|
||||
IFS whitespace character.
|
||||
|
||||
vvv. Fixed a bug that caused BASH_COMMAND to be set to an incorrect value when
|
||||
executing a (...) subshell.
|
||||
|
||||
www. Fixed a pointer aliasing bug with the token string in arithmetic
|
||||
evaluation.
|
||||
|
||||
xxx. Fixed a bug with parsing multi-line command substitutions when reading
|
||||
the `do' keyword followed by whitespace.
|
||||
|
||||
yyy. Fixed a bug that caused the shell to seg fault if the time given to the
|
||||
printf %(...)T format overflowed the value accepted by localtime(3).
|
||||
|
||||
zzz. Fixed a problem with displaying help topics in two columns when the
|
||||
translated text contained multibyte characters.
|
||||
|
||||
aaaa. Fixed a bug with the extended globbing pattern matcher where a `*' was
|
||||
followed by a negated extended glob pattern.
|
||||
|
||||
bbbb. Fixed a race condition with short-lived coproc creation and reaping that
|
||||
caused the child process to be reaped before the various coproc shell
|
||||
variables were initialized.
|
||||
|
||||
cccc. Fixed a bug where turning off `errexit' in command substitution subshells
|
||||
was not reflected in $SHELLOPTS.
|
||||
|
||||
dddd. Partially fixed an inconsistency in how the shell treated shell
|
||||
functions run from an EXIT trap.
|
||||
|
||||
eeee. Fixed a bug in how the shell invalidated FIFOs used for process
|
||||
substitution when executing a pipeline (once rather than in every child).
|
||||
|
||||
ffff. Fixed a bug that occurred when expanding a special variable ($@, $*)
|
||||
within double quotes and the expansion resulted in an empty string.
|
||||
|
||||
gggg. Fixed bugs with executing a SIGCHLD trap handler to make sure that it's
|
||||
executed once per exited child.
|
||||
|
||||
hhhh. Fixed a bug that caused `declare' and `test' to find variables that
|
||||
had been given attributes but not assigned values. Such variables are
|
||||
not set.
|
||||
|
||||
iiii. Fixed a bug that caused commands in process substitutions to not look in
|
||||
the local temporary environment when performing word expansions.
|
||||
|
||||
jjjj. Fixed several problems with globstar expansions (**/**) returning null
|
||||
filenames and multiple instances of the same pathname.
|
||||
|
||||
kkkk. Fixed an oversight that did not allow the exit status of `coproc' to
|
||||
be inverted using `!'.
|
||||
|
||||
llll. Fixed a bug that caused the -e option to be re-enabled using `set -e'
|
||||
even when executing in a context where -e is ignored.
|
||||
|
||||
mmmm. Fixed a (mostly theoretical) bug with input lines longer than SIZE_MAX.
|
||||
|
||||
2. Changes to Readline
|
||||
|
||||
a. Fixed a bug that did not allow the `dd', `cc', or `yy' vi editing mode
|
||||
commands to work on the entire line.
|
||||
|
||||
b. Fixed a bug that caused redisplay problems with prompts longer than 128
|
||||
characters and history searches.
|
||||
|
||||
c. Fixed a bug that caused readline to try and run code to modify its idea
|
||||
of the screen size in a signal handler context upon receiving a SIGWINCH.
|
||||
|
||||
d. Fixed a bug that caused the `meta' key to be enabled beyond the duration
|
||||
of an individual call top readline().
|
||||
|
||||
e. Added a workaround for a wcwidth bug in Mac OS X that caused readline's
|
||||
redisplay to mishandle zero-width combining characters.
|
||||
|
||||
f. Fixed a bug that caused readline to `forget' part of a key sequence when
|
||||
a multiple-key sequence caused it to break out of an incremental search.
|
||||
|
||||
g. Fixed bugs that caused readline to execute code in a signal handler
|
||||
context if interrupted while reading from the file system during completion.
|
||||
|
||||
h. Fixed a bug that caused readline to `forget' part of a key sequence when
|
||||
reading an unbound multi-character key sequence.
|
||||
|
||||
i. Fixed a bug that caused Readline's signal handlers to be installed beyond
|
||||
the bounds of a single call to readline().
|
||||
|
||||
j. Fixed a bug that caused the `.' command to not redo the most recent `R'
|
||||
command in vi mode.
|
||||
|
||||
k. Fixed a bug that caused ignoring case in completion matches to result in
|
||||
readline using the wrong match.
|
||||
|
||||
l. Paren matching now works in vi insert mode.
|
||||
|
||||
m. Fix menu-completion to make show-all-if-ambiguous and menu-complete-display-prefix
|
||||
work together.
|
||||
|
||||
n. Fixed a bug that didn't allow the `cc', `dd', or `yy' commands to be redone
|
||||
in vi editing mode.
|
||||
|
||||
o. Fixed a bug that caused the filename comparison code to not compare
|
||||
multibyte characters correctly when using case-sensitive or case-mapping
|
||||
comparisons.
|
||||
|
||||
p. Fixed the input reading loop to call the input hook function only when there
|
||||
is no terminal input available.
|
||||
|
||||
q. Fixed a bug that caused binding a macro to a multi-character key sequence
|
||||
where the sequence and macro value share a common prefix to not perform
|
||||
the macro replacement.
|
||||
|
||||
r. Fixed several redisplay errors with multibyte characters and prompts
|
||||
containing invisible characters when using horizontal scrolling.
|
||||
|
||||
3. New Features in Bash
|
||||
|
||||
a. The `helptopic' completion action now maps to all the help topics, not just
|
||||
the shell builtins.
|
||||
|
||||
b. The `help' builtin no longer does prefix substring matching, so `help read'
|
||||
does not match `readonly'.
|
||||
|
||||
c. The shell can be compiled to not display a message about processes that
|
||||
terminate due to SIGTERM.
|
||||
|
||||
d. Non-interactive shells now react to the setting of checkwinsize and set
|
||||
LINES and COLUMNS after a foreground job exits.
|
||||
|
||||
e. There is a new shell option, `globasciiranges', which, when set to on,
|
||||
forces globbing range comparisons to use character ordering as if they
|
||||
were run in the C locale.
|
||||
|
||||
f. There is a new shell option, `direxpand', which makes filename completion
|
||||
expand variables in directory names in the way bash-4.1 did.
|
||||
|
||||
g. In Posix mode, the `command' builtin does not change whether or not a
|
||||
builtin it shadows is treated as an assignment builtin.
|
||||
|
||||
h. The `return' and `exit' builtins accept negative exit status arguments.
|
||||
|
||||
i. The word completion code checks whether or not a filename containing a
|
||||
shell variable expands to a directory name and appends `/' to the word
|
||||
as appropriate. The same code expands shell variables in command names
|
||||
when performing command completion.
|
||||
|
||||
j. In Posix mode, it is now an error to attempt to define a shell function
|
||||
with the same name as a Posix special builtin.
|
||||
|
||||
k. When compiled for strict Posix conformance, history expansion is disabled
|
||||
by default.
|
||||
|
||||
l. The history expansion character (!) does not cause history expansion when
|
||||
followed by the closing quote in a double-quoted string.
|
||||
|
||||
m. `complete' and its siblings compgen/compopt now takes a new `-o noquote'
|
||||
option to inhibit quoting of the completions.
|
||||
|
||||
n. Setting HISTSIZE to a value less than zero causes the history list to be
|
||||
unlimited (setting it 0 zero disables the history list).
|
||||
|
||||
o. Setting HISTFILESIZE to a value less than zero causes the history file size
|
||||
to be unlimited (setting it to 0 causes the history file to be truncated
|
||||
to zero size).
|
||||
|
||||
p. The `read' builtin now skips NUL bytes in the input.
|
||||
|
||||
q. There is a new `bind -X' option to print all key sequences bound to Unix
|
||||
commands.
|
||||
|
||||
r. When in Posix mode, `read' is interruptible by a trapped signal. After
|
||||
running the trap handler, read returns 128+signal and throws away any
|
||||
partially-read input.
|
||||
|
||||
s. The command completion code skips whitespace and assignment statements
|
||||
before looking for the command name word to be completed.
|
||||
|
||||
t. The build process has a new mechanism for constructing separate help files
|
||||
that better reflects the current set of compilation options.
|
||||
|
||||
u. The -nt and -ot options to test now work with files with nanosecond
|
||||
timestamp resolution.
|
||||
|
||||
v. The shell saves the command history in any shell for which history is
|
||||
enabled and HISTFILE is set, not just interactive shells.
|
||||
|
||||
w. The shell has `nameref' variables and new -n(/+n) options to declare and
|
||||
unset to use them, and a `test -R' option to test for them.
|
||||
|
||||
x. The shell now allows assigning, referencing, and unsetting elements of
|
||||
indexed arrays using negative subscripts (a[-1]=2, echo ${a[-1]}) which
|
||||
count back from the last element of the array.
|
||||
|
||||
y. The {x}<word redirection feature now allows words like {array[ind]} and
|
||||
can use variables with special meanings to the shell (e.g., BASH_XTRACEFD).
|
||||
|
||||
z. There is a new CHILD_MAX special shell variable; its value controls the
|
||||
number of exited child statues the shell remembers.
|
||||
|
||||
aa. There is a new configuration option (--enable-direxpand-default) that
|
||||
causes the `direxpand' shell option to be enabled by default.
|
||||
|
||||
bb. Bash does not do anything special to ensure that the file descriptor
|
||||
assigned to X in {x}<foo remains open after the block containing it
|
||||
completes.
|
||||
|
||||
cc. The `wait' builtin has a new `-n' option to wait for the next child to
|
||||
change status.
|
||||
|
||||
dd. The `printf' %(...)T format specifier now uses the current time if no
|
||||
argument is supplied.
|
||||
|
||||
4. New Features in Readline
|
||||
|
||||
a. Readline is now more responsive to SIGHUP and other fatal signals when
|
||||
reading input from the terminal or performing word completion but no
|
||||
longer attempts to run any not-allowable functions from a signal handler
|
||||
context.
|
||||
|
||||
b. There are new bindable commands to search the history for the string of
|
||||
characters between the beginning of the line and the point
|
||||
(history-substring-search-forward, history-substring-search-backward)
|
||||
|
||||
c. Readline allows quoted strings as the values of variables when setting
|
||||
them with `set'. As a side effect, trailing spaces and tabs are ignored
|
||||
when setting a string variable's value.
|
||||
|
||||
d. The history library creates a backup of the history file when writing it
|
||||
and restores the backup on a write error.
|
||||
|
||||
e. New application-settable variable: rl_filename_stat_hook: a function called
|
||||
with a filename before using it in a call to stat(2). Bash uses it to
|
||||
expand shell variables so things like $HOME/Downloads have a slash
|
||||
appended.
|
||||
|
||||
f. New bindable function `print-last-kbd-macro', prints the most-recently-
|
||||
defined keyboard macro in a reusable format.
|
||||
|
||||
g. New user-settable variable `colored-stats', enables use of colored text
|
||||
to denote file types when displaying possible completions (colored analog
|
||||
of visible-stats).
|
||||
|
||||
h. New user-settable variable `keyseq-timout', acts as an inter-character
|
||||
timeout when reading input or incremental search strings.
|
||||
|
||||
i. New application-callable function: rl_clear_history. Clears the history list
|
||||
and frees all readline-associated private data.
|
||||
|
||||
j. New user-settable variable, show-mode-in-prompt, adds a characters to the
|
||||
beginning of the prompt indicating the current editing mode.
|
||||
|
||||
k. New application-settable variable: rl_input_available_hook; function to be
|
||||
called when readline detects there is data available on its input file
|
||||
descriptor.
|
||||
|
||||
l. Readline calls an application-set event hook (rl_event_hook) after it gets
|
||||
a signal while reading input (read returns -1/EINTR but readline does not
|
||||
handle the signal immediately) to allow the application to handle or
|
||||
otherwise note it.
|
||||
|
||||
m. If the user-settable variable `history-size' is set to a value less than
|
||||
0, the history list size is unlimited.
|
||||
@@ -365,16 +365,27 @@ version and versions 2.0 and above.
|
||||
history expansion by default, since it results in a non-conforming
|
||||
environment.
|
||||
|
||||
53. Bash-4.3 runs the replacement string in the pattern substitution word
|
||||
expansion through quote removal. The code already treats quote
|
||||
characters in the replacement string as special; if it treats them as
|
||||
special, then quote removal should remove them.
|
||||
|
||||
Shell Compatibility Level
|
||||
=========================
|
||||
|
||||
Bash-4.0 introduced the concept of a `shell compatibility level', specified
|
||||
as a set of options to the shopt builtin (compat31, compat32, compat40, and
|
||||
compat41 at this writing). There is only one current compatibility level --
|
||||
each option is mutually exclusive. This list does not mention behavior
|
||||
that is standard for a particular version (e.g., setting compat32 means that
|
||||
quoting the rhs of the regexp matching operator quotes special regexp
|
||||
characters in the word, which is default behavior in bash-3.2 and above).
|
||||
as a set of options to the shopt builtin (compat31, compat32, compat40,
|
||||
compat41, and compat42 at this writing). There is only one current
|
||||
compatibility level -- each option is mutually exclusive. This list does not
|
||||
mention behavior that is standard for a particular version (e.g., setting
|
||||
compat32 means that quoting the rhs of the regexp matching operator quotes
|
||||
special regexp characters in the word, which is default behavior in bash-3.2
|
||||
and above).
|
||||
|
||||
Bash-4.3 introduces a new shell variable: BASH_COMPAT. The value assigned
|
||||
to this variable (a decimal version number like 4.2, or an integer
|
||||
corresponding to the compatNN option, like 42) determines the compatibility
|
||||
level.
|
||||
|
||||
compat31 set
|
||||
- the < and > operators to the [[ command do not consider the current
|
||||
@@ -400,6 +411,10 @@ compat41 set
|
||||
- when in posix mode, single quotes in the `word' portion of a
|
||||
double-quoted parameter expansion define a new quoting context and
|
||||
are treated specially
|
||||
|
||||
compat42 set
|
||||
- the replacement string in double-quoted pattern substitution is not
|
||||
run through quote removal, as in previous versions
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
Copying and distribution of this file, with or without modification,
|
||||
|
||||
@@ -0,0 +1,417 @@
|
||||
Compatibility with previous versions
|
||||
====================================
|
||||
|
||||
This document details the incompatibilities between this version of bash,
|
||||
bash-4.2, and the previous widely-available versions, bash-2.x (which is
|
||||
still the `standard' version for a few Linux distributions) and bash-3.x.
|
||||
These were discovered by users of bash-2.x through 4.x, so this list is not
|
||||
comprehensive. Some of these incompatibilities occur between the current
|
||||
version and versions 2.0 and above.
|
||||
|
||||
1. Bash uses a new quoting syntax, $"...", to do locale-specific
|
||||
string translation. Users who have relied on the (undocumented)
|
||||
behavior of bash-1.14 will have to change their scripts. For
|
||||
instance, if you are doing something like this to get the value of
|
||||
a variable whose name is the value of a second variable:
|
||||
|
||||
eval var2=$"$var1"
|
||||
|
||||
you will have to change to a different syntax.
|
||||
|
||||
This capability is directly supported by bash-2.0:
|
||||
|
||||
var2=${!var1}
|
||||
|
||||
This alternate syntax will work portably between bash-1.14 and bash-2.0:
|
||||
|
||||
eval var2=\$${var1}
|
||||
|
||||
2. One of the bugs fixed in the YACC grammar tightens up the rules
|
||||
concerning group commands ( {...} ). The `list' that composes the
|
||||
body of the group command must be terminated by a newline or
|
||||
semicolon. That's because the braces are reserved words, and are
|
||||
recognized as such only when a reserved word is legal. This means
|
||||
that while bash-1.14 accepted shell function definitions like this:
|
||||
|
||||
foo() { : }
|
||||
|
||||
bash-2.0 requires this:
|
||||
|
||||
foo() { :; }
|
||||
|
||||
This is also an issue for commands like this:
|
||||
|
||||
mkdir dir || { echo 'could not mkdir' ; exit 1; }
|
||||
|
||||
The syntax required by bash-2.0 is also accepted by bash-1.14.
|
||||
|
||||
3. The options to `bind' have changed to make them more consistent with
|
||||
the rest of the bash builtins. If you are using `bind -d' to list
|
||||
the readline key bindings in a form that can be re-read, use `bind -p'
|
||||
instead. If you were using `bind -v' to list the key bindings, use
|
||||
`bind -P' instead.
|
||||
|
||||
4. The `long' invocation options must now be prefixed by `--' instead
|
||||
of `-'. (The old form is still accepted, for the time being.)
|
||||
|
||||
5. There was a bug in the version of readline distributed with bash-1.14
|
||||
that caused it to write badly-formatted key bindings when using
|
||||
`bind -d'. The only key sequences that were affected are C-\ (which
|
||||
should appear as \C-\\ in a key binding) and C-" (which should appear
|
||||
as \C-\"). If these key sequences appear in your inputrc, as, for
|
||||
example,
|
||||
|
||||
"\C-\": self-insert
|
||||
|
||||
they will need to be changed to something like the following:
|
||||
|
||||
"\C-\\": self-insert
|
||||
|
||||
6. A number of people complained about having to use ESC to terminate an
|
||||
incremental search, and asked for an alternate mechanism. Bash-2.03
|
||||
uses the value of the settable readline variable `isearch-terminators'
|
||||
to decide which characters should terminate an incremental search. If
|
||||
that variable has not been set, ESC and Control-J will terminate a
|
||||
search.
|
||||
|
||||
7. Some variables have been removed: MAIL_WARNING, notify, history_control,
|
||||
command_oriented_history, glob_dot_filenames, allow_null_glob_expansion,
|
||||
nolinks, hostname_completion_file, noclobber, no_exit_on_failed_exec, and
|
||||
cdable_vars. Most of them are now implemented with the new `shopt'
|
||||
builtin; others were already implemented by `set'. Here is a list of
|
||||
correspondences:
|
||||
|
||||
MAIL_WARNING shopt mailwarn
|
||||
notify set -o notify
|
||||
history_control HISTCONTROL
|
||||
command_oriented_history shopt cmdhist
|
||||
glob_dot_filenames shopt dotglob
|
||||
allow_null_glob_expansion shopt nullglob
|
||||
nolinks set -o physical
|
||||
hostname_completion_file HOSTFILE
|
||||
noclobber set -o noclobber
|
||||
no_exit_on_failed_exec shopt execfail
|
||||
cdable_vars shopt cdable_vars
|
||||
|
||||
8. `ulimit' now sets both hard and soft limits and reports the soft limit
|
||||
by default (when neither -H nor -S is specified). This is compatible
|
||||
with versions of sh and ksh that implement `ulimit'. The bash-1.14
|
||||
behavior of, for example,
|
||||
|
||||
ulimit -c 0
|
||||
|
||||
can be obtained with
|
||||
|
||||
ulimit -S -c 0
|
||||
|
||||
It may be useful to define an alias:
|
||||
|
||||
alias ulimit="ulimit -S"
|
||||
|
||||
9. Bash-2.01 uses a new quoting syntax, $'...' to do ANSI-C string
|
||||
translation. Backslash-escaped characters in ... are expanded and
|
||||
replaced as specified by the ANSI C standard.
|
||||
|
||||
10. The sourcing of startup files has changed somewhat. This is explained
|
||||
more completely in the INVOCATION section of the manual page.
|
||||
|
||||
A non-interactive shell not named `sh' and not in posix mode reads
|
||||
and executes commands from the file named by $BASH_ENV. A
|
||||
non-interactive shell started by `su' and not in posix mode will read
|
||||
startup files. No other non-interactive shells read any startup files.
|
||||
|
||||
An interactive shell started in posix mode reads and executes commands
|
||||
from the file named by $ENV.
|
||||
|
||||
11. The <> redirection operator was changed to conform to the POSIX.2 spec.
|
||||
In the absence of any file descriptor specification preceding the `<>',
|
||||
file descriptor 0 is used. In bash-1.14, this was the behavior only
|
||||
when in POSIX mode. The bash-1.14 behavior may be obtained with
|
||||
|
||||
<>filename 1>&0
|
||||
|
||||
12. The `alias' builtin now checks for invalid options and takes a `-p'
|
||||
option to display output in POSIX mode. If you have old aliases beginning
|
||||
with `-' or `+', you will have to add the `--' to the alias command
|
||||
that declares them:
|
||||
|
||||
alias -x='chmod a-x' --> alias -- -x='chmod a-x'
|
||||
|
||||
13. The behavior of range specificiers within bracket matching expressions
|
||||
in the pattern matcher (e.g., [A-Z]) depends on the current locale,
|
||||
specifically the value of the LC_COLLATE environment variable. Setting
|
||||
this variable to C or POSIX will result in the traditional ASCII behavior
|
||||
for range comparisons. If the locale is set to something else, e.g.,
|
||||
en_US (specified by the LANG or LC_ALL variables), collation order is
|
||||
locale-dependent. For example, the en_US locale sorts the upper and
|
||||
lower case letters like this:
|
||||
|
||||
AaBb...Zz
|
||||
|
||||
so a range specification like [A-Z] will match every letter except `z'.
|
||||
Other locales collate like
|
||||
|
||||
aAbBcC...zZ
|
||||
|
||||
which means that [A-Z] matches every letter except `a'.
|
||||
|
||||
The portable way to specify upper case letters is [:upper:] instead of
|
||||
A-Z; lower case may be specified as [:lower:] instead of a-z.
|
||||
|
||||
Look at the manual pages for setlocale(3), strcoll(3), and, if it is
|
||||
present, locale(1).
|
||||
|
||||
You can find your current locale information by running locale(1):
|
||||
|
||||
caleb.ins.cwru.edu(2)$ locale
|
||||
LANG=en_US
|
||||
LC_CTYPE="en_US"
|
||||
LC_NUMERIC="en_US"
|
||||
LC_TIME="en_US"
|
||||
LC_COLLATE="en_US"
|
||||
LC_MONETARY="en_US"
|
||||
LC_MESSAGES="en_US"
|
||||
LC_ALL=en_US
|
||||
|
||||
My advice is to put
|
||||
|
||||
export LC_COLLATE=C
|
||||
|
||||
into /etc/profile and inspect any shell scripts run from cron for
|
||||
constructs like [A-Z]. This will prevent things like
|
||||
|
||||
rm [A-Z]*
|
||||
|
||||
from removing every file in the current directory except those beginning
|
||||
with `z' and still allow individual users to change the collation order.
|
||||
Users may put the above command into their own profiles as well, of course.
|
||||
|
||||
14. Bash versions up to 1.14.7 included an undocumented `-l' operator to
|
||||
the `test/[' builtin. It was a unary operator that expanded to the
|
||||
length of its string argument. This let you do things like
|
||||
|
||||
test -l $variable -lt 20
|
||||
|
||||
for example.
|
||||
|
||||
This was included for backwards compatibility with old versions of the
|
||||
Bourne shell, which did not provide an easy way to obtain the length of
|
||||
the value of a shell variable.
|
||||
|
||||
This operator is not part of the POSIX standard, because one can (and
|
||||
should) use ${#variable} to get the length of a variable's value.
|
||||
Bash-2.x does not support it.
|
||||
|
||||
15. Bash no longer auto-exports the HOME, PATH, SHELL, TERM, HOSTNAME,
|
||||
HOSTTYPE, MACHTYPE, or OSTYPE variables. If they appear in the initial
|
||||
environment, the export attribute will be set, but if bash provides a
|
||||
default value, they will remain local to the current shell.
|
||||
|
||||
16. Bash no longer initializes the FUNCNAME, GROUPS, or DIRSTACK variables
|
||||
to have special behavior if they appear in the initial environment.
|
||||
|
||||
17. Bash no longer removes the export attribute from the SSH_CLIENT or
|
||||
SSH2_CLIENT variables, and no longer attempts to discover whether or
|
||||
not it has been invoked by sshd in order to run the startup files.
|
||||
|
||||
18. Bash no longer requires that the body of a function be a group command;
|
||||
any compound command is accepted.
|
||||
|
||||
19. As of bash-3.0, the pattern substitution operators no longer perform
|
||||
quote removal on the pattern before attempting the match. This is the
|
||||
way the pattern removal functions behave, and is more consistent.
|
||||
|
||||
20. After bash-3.0 was released, I reimplemented tilde expansion, incorporating
|
||||
it into the mainline word expansion code. This fixes the bug that caused
|
||||
the results of tilde expansion to be re-expanded. There is one
|
||||
incompatibility: a ${paramOPword} expansion within double quotes will not
|
||||
perform tilde expansion on WORD. This is consistent with the other
|
||||
expansions, and what POSIX specifies.
|
||||
|
||||
21. A number of variables have the integer attribute by default, so the +=
|
||||
assignment operator returns expected results: RANDOM, LINENO, MAILCHECK,
|
||||
HISTCMD, OPTIND.
|
||||
|
||||
22. Bash-3.x is much stricter about $LINENO correctly reflecting the line
|
||||
number in a script; assignments to LINENO have little effect.
|
||||
|
||||
23. By default, readline binds the terminal special characters to their
|
||||
readline equivalents. As of bash-3.1/readline-5.1, this is optional and
|
||||
controlled by the bind-tty-special-chars readline variable.
|
||||
|
||||
24. The \W prompt string expansion abbreviates $HOME as `~'. The previous
|
||||
behavior is available with ${PWD##/*/}.
|
||||
|
||||
25. The arithmetic exponentiation operator is right-associative as of bash-3.1.
|
||||
|
||||
26. The rules concerning valid alias names are stricter, as per POSIX.2.
|
||||
|
||||
27. The Readline key binding functions now obey the convert-meta setting active
|
||||
when the binding takes place, as the dispatch code does when characters
|
||||
are read and processed.
|
||||
|
||||
28. The historical behavior of `trap' reverting signal disposition to the
|
||||
original handling in the absence of a valid first argument is implemented
|
||||
only if the first argument is a valid signal number.
|
||||
|
||||
29. In versions of bash after 3.1, the ${parameter//pattern/replacement}
|
||||
expansion does not interpret `%' or `#' specially. Those anchors don't
|
||||
have any real meaning when replacing every match.
|
||||
|
||||
30. Beginning with bash-3.1, the combination of posix mode and enabling the
|
||||
`xpg_echo' option causes echo to ignore all options, not looking for `-n'
|
||||
|
||||
31. Beginning with bash-3.2, bash follows the Bourne-shell-style (and POSIX-
|
||||
style) rules for parsing the contents of old-style backquoted command
|
||||
substitutions. Previous versions of bash attempted to recursively parse
|
||||
embedded quoted strings and shell constructs; bash-3.2 uses strict POSIX
|
||||
rules to find the closing backquote and simply passes the contents of the
|
||||
command substitution to a subshell for parsing and execution.
|
||||
|
||||
32. Beginning with bash-3.2, bash uses access(2) when executing primaries for
|
||||
the test builtin and the [[ compound command, rather than looking at the
|
||||
file permission bits obtained with stat(2). This obeys restrictions of
|
||||
the file system (e.g., read-only or noexec mounts) not available via stat.
|
||||
|
||||
33. Bash-3.2 adopts the convention used by other string and pattern matching
|
||||
operators for the `[[' compound command, and matches any quoted portion
|
||||
of the right-hand-side argument to the =~ operator as a string rather
|
||||
than a regular expression.
|
||||
|
||||
34. Bash-4.0 allows the behavior in the previous item to be modified using
|
||||
the notion of a shell `compatibility level'. If the compat31 shopt
|
||||
option is set, quoting the pattern has no special effect.
|
||||
|
||||
35. Bash-3.2 (patched) and Bash-4.0 fix a bug that leaves the shell in an
|
||||
inconsistent internal state following an assignment error. One of the
|
||||
changes means that compound commands or { ... } grouping commands are
|
||||
aborted under some circumstances in which they previously were not.
|
||||
This is what Posix specifies.
|
||||
|
||||
36. Bash-4.0 now allows process substitution constructs to pass unchanged
|
||||
through brace expansion, so any expansion of the contents will have to be
|
||||
separately specified, and each process subsitution will have to be
|
||||
separately entered.
|
||||
|
||||
37. Bash-4.0 now allows SIGCHLD to interrupt the wait builtin, as Posix
|
||||
specifies, so the SIGCHLD trap is no longer always invoked once per
|
||||
exiting child if you are using `wait' to wait for all children. As
|
||||
of bash-4.2, this is the status quo only when in posix mode.
|
||||
|
||||
38. Since bash-4.0 now follows Posix rules for finding the closing delimiter
|
||||
of a $() command substitution, it will not behave as previous versions
|
||||
did, but will catch more syntax and parsing errors before spawning a
|
||||
subshell to evaluate the command substitution.
|
||||
|
||||
39. The programmable completion code uses the same set of delimiting characters
|
||||
as readline when breaking the command line into words, rather than the
|
||||
set of shell metacharacters, so programmable completion and readline
|
||||
should be more consistent.
|
||||
|
||||
40. When the read builtin times out, it attempts to assign any input read to
|
||||
specified variables, which also causes variables to be set to the empty
|
||||
string if there is not enough input. Previous versions discarded the
|
||||
characters read.
|
||||
|
||||
41. Beginning with bash-4.0, when one of the commands in a pipeline is killed
|
||||
by a SIGINT while executing a command list, the shell acts as if it
|
||||
received the interrupt. This can be disabled by setting the compat31 or
|
||||
compat32 shell options.
|
||||
|
||||
42. Bash-4.0 changes the handling of the set -e option so that the shell exits
|
||||
if a pipeline fails (and not just if the last command in the failing
|
||||
pipeline is a simple command). This is not as Posix specifies. There is
|
||||
work underway to update this portion of the standard; the bash-4.0
|
||||
behavior attempts to capture the consensus at the time of release.
|
||||
|
||||
43. Bash-4.0 fixes a Posix mode bug that caused the . (source) builtin to
|
||||
search the current directory for its filename argument, even if "." is
|
||||
not in $PATH. Posix says that the shell shouldn't look in $PWD in this
|
||||
case.
|
||||
|
||||
44. Bash-4.1 uses the current locale when comparing strings using the < and
|
||||
> operators to the `[[' command. This can be reverted to the previous
|
||||
behavior (ASCII collating and strcmp(3)) by setting one of the
|
||||
`compatNN' shopt options, where NN is less than 41.
|
||||
|
||||
45. Bash-4.1 conforms to the current Posix specification for `set -u':
|
||||
expansions of $@ and $* when there are no positional parameters do not
|
||||
cause the shell to exit.
|
||||
|
||||
46. Bash-4.1 implements the current Posix specification for `set -e' and
|
||||
exits when any command fails, not just a simple command or pipeline.
|
||||
|
||||
47. Command substitutions now remove the caller's trap strings when trap is
|
||||
run to set a new trap in the subshell. Previous to bash-4.2, the old
|
||||
trap strings persisted even though the actual signal handlers were reset.
|
||||
|
||||
48. When in Posix mode, a single quote is not treated specially in a
|
||||
double-quoted ${...} expansion, unless the expansion operator is
|
||||
# or % or the new `//', `^', or `,' expansions. In particular, it
|
||||
does not define a new quoting context. This is from Posix interpretation
|
||||
221.
|
||||
|
||||
49. Posix mode shells no longer exit if a variable assignment error occurs
|
||||
with an assignment preceding a command that is not a special builtin.
|
||||
|
||||
50. Bash-4.2 attempts to preserve what the user typed when performing word
|
||||
completion, instead of, for instance, expanding shell variable
|
||||
references to their value.
|
||||
|
||||
51. When in Posix mode, bash-4.2 exits if the filename supplied as an argument
|
||||
to `.' is not found and the shell is not interactive.
|
||||
|
||||
52. When compiled for strict Posix compatibility, bash-4.3 does not enable
|
||||
history expansion by default, since it results in a non-conforming
|
||||
environment.
|
||||
|
||||
53. Bash-4.3 runs the replacement string in the pattern substitution word
|
||||
expansion through quote removal. The code already treats quote
|
||||
characters in the replacement string as special; if it treats them as
|
||||
special, then quote removal should remove them.
|
||||
|
||||
Shell Compatibility Level
|
||||
=========================
|
||||
|
||||
Bash-4.0 introduced the concept of a `shell compatibility level', specified
|
||||
as a set of options to the shopt builtin (compat31, compat32, compat40, and
|
||||
compat41 at this writing). There is only one current compatibility level --
|
||||
each option is mutually exclusive. This list does not mention behavior
|
||||
that is standard for a particular version (e.g., setting compat32 means that
|
||||
quoting the rhs of the regexp matching operator quotes special regexp
|
||||
characters in the word, which is default behavior in bash-3.2 and above).
|
||||
|
||||
compat31 set
|
||||
- the < and > operators to the [[ command do not consider the current
|
||||
locale when comparing strings; they use ASCII ordering
|
||||
- quoting the rhs of the regexp matching operator (=~) has no
|
||||
special effect
|
||||
|
||||
compat32 set
|
||||
- the < and > operators to the [[ command do not consider the current
|
||||
locale when comparing strings; they use ASCII ordering
|
||||
|
||||
compat40 set
|
||||
- the < and > operators to the [[ command do not consider the current
|
||||
locale when comparing strings; they use ASCII ordering
|
||||
- interrupting a command list such as "a ; b ; c" causes the execution
|
||||
of the entire list to be aborted (in versions before bash-4.0,
|
||||
interrupting one command in a list caused the next to be executed)
|
||||
|
||||
compat41 set
|
||||
- interrupting a command list such as "a ; b ; c" causes the execution
|
||||
of the entire list to be aborted (in versions before bash-4.1,
|
||||
interrupting one command in a list caused the next to be executed)
|
||||
- when in posix mode, single quotes in the `word' portion of a
|
||||
double-quoted parameter expansion define a new quoting context and
|
||||
are treated specially
|
||||
|
||||
compat42 set
|
||||
- the replacement string in double-quoted pattern substitution is not
|
||||
run through quote removal, as in previous versions
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
Copying and distribution of this file, with or without modification,
|
||||
are permitted in any medium without royalty provided the copyright
|
||||
notice and this notice are preserved. This file is offered as-is,
|
||||
without any warranty.
|
||||
+58
-3
@@ -857,8 +857,9 @@ lib/glob/smatch.c
|
||||
- rangecmp,rangecmp_wc: change to take an additional argument, which
|
||||
forces the use of strcoll/wscoll when non-zero. If it's 0, a new
|
||||
variable `glob_asciirange' controls whether or not we use strcoll/
|
||||
wscoll. If it's non-zero, we use straight C-locale-like ordering.
|
||||
Suggested by Aharon Robbins <arnold@skeeve.com>
|
||||
wscoll. If glob_asciirange is non-zero, we use straight
|
||||
C-locale-like ordering. Suggested by Aharon Robbins
|
||||
<arnold@skeeve.com>
|
||||
|
||||
6/30
|
||||
----
|
||||
@@ -3604,7 +3605,7 @@ builtins/help.def
|
||||
for each builtin in two columns into a new function: dispcolumn
|
||||
- wdispcolumn: multibyte-char version of dispcolumn; uses wide
|
||||
chars and printf "%ls" format. Fixes problem reported by
|
||||
Nguyá»n Thái Ngá»c Duy <pclouds@gmail.c
|
||||
Nguyá»n Thái Ngá»c Duy <pclouds@gmail.com>
|
||||
|
||||
9/22
|
||||
----
|
||||
@@ -4122,6 +4123,7 @@ execute_cmd.c
|
||||
setjmp_nosigs: call instead of setjmp where appropriate when saving
|
||||
top_level; don't need to manipulate signal mask if we're going to
|
||||
exit right away
|
||||
|
||||
subst.c
|
||||
- command_substitute: setjmp_nosigs: call instead of setjmp when saving
|
||||
return_catch; don't need to manipulate signal mask
|
||||
@@ -4206,3 +4208,56 @@ subst.c
|
||||
it (W_ASSNGLOBAL). Fixes inconsistency noticed by Vicente Couce
|
||||
Diaz <vituko@gmail.com>, where declare -ag foo=(bar) could modify
|
||||
array variable foo at previous function scope, not global scope
|
||||
|
||||
12/27
|
||||
-----
|
||||
bashline.c
|
||||
- Minix needs the third argument to tputs to be a void funtion taking
|
||||
an int argument, not an int-returning function. Fix from
|
||||
John E. Malmberg <wb8tyw@qsl.net> as part of VMS bash port
|
||||
|
||||
12/29
|
||||
-----
|
||||
configure.ac,version.c,patchlevel.h
|
||||
- bash-4.3-devel: new version, new shell compatibility level (43)
|
||||
|
||||
subst.c
|
||||
- parameter_brace_patsub: put the bash-4.2 code back in from the
|
||||
change of 3/3 that runs the replacement string through quote
|
||||
removal, make it dependent on shell_compatibility_level <= 42
|
||||
|
||||
builtins/shopt.def
|
||||
- compat42: new shopt option
|
||||
- set_compatibility_level: change logic to set and unset various
|
||||
compat variables and shell_compatibility_level
|
||||
|
||||
COMPAT
|
||||
- new documentation for bash-4.3 compatibility changes
|
||||
|
||||
doc/{bash.1,bashref.texi}
|
||||
- compat42: document new shopt option
|
||||
|
||||
builtins/shopt.def
|
||||
- set_compatibility_opts: new function, sets the various shopt
|
||||
compat variables based on the value of shell_compatibility_level
|
||||
|
||||
builtins/common.h
|
||||
- set_compatibility_opts: new extern declaration
|
||||
|
||||
variables.c
|
||||
- BASH_COMPAT: new special variable; sets the shell compatibility
|
||||
level. Accepts values in decimal (4.2) or integer (42) form;
|
||||
Unsetting variable, setting it to empty string, or setting it to
|
||||
out-of-range value sets the shell's compatibility level to the
|
||||
default for the current version. Valid values are 3.1/31 through
|
||||
the current version
|
||||
- sv_shcompat: new function implementing logic for BASH_COMPAT
|
||||
|
||||
variables.h
|
||||
- sv_shcompat: new extern declaration
|
||||
|
||||
doc/{bash.1,bashref.texi}
|
||||
- BASH_COMPAT: description of new variable
|
||||
|
||||
lib/readline/complete.c
|
||||
- _rl_colored_stats: default back to 0 for 4.3 release branch
|
||||
|
||||
+61
-5
@@ -857,8 +857,9 @@ lib/glob/smatch.c
|
||||
- rangecmp,rangecmp_wc: change to take an additional argument, which
|
||||
forces the use of strcoll/wscoll when non-zero. If it's 0, a new
|
||||
variable `glob_asciirange' controls whether or not we use strcoll/
|
||||
wscoll. If it's non-zero, we use straight C-locale-like ordering.
|
||||
Suggested by Aharon Robbins <arnold@skeeve.com>
|
||||
wscoll. If glob_asciirange is non-zero, we use straight
|
||||
C-locale-like ordering. Suggested by Aharon Robbins
|
||||
<arnold@skeeve.com>
|
||||
|
||||
6/30
|
||||
----
|
||||
@@ -3604,7 +3605,7 @@ builtins/help.def
|
||||
for each builtin in two columns into a new function: dispcolumn
|
||||
- wdispcolumn: multibyte-char version of dispcolumn; uses wide
|
||||
chars and printf "%ls" format. Fixes problem reported by
|
||||
Nguyá»n Thái Ngá»c Duy <pclouds@gmail.c
|
||||
Nguyá»n Thái Ngá»c Duy <pclouds@gmail.com>
|
||||
|
||||
9/22
|
||||
----
|
||||
@@ -4186,7 +4187,8 @@ builtins/declare.def
|
||||
- declare_internal: if -g given with name=value, but variable is not
|
||||
found in the global variable table, make sure to call
|
||||
bind_global_variable so the variable is created and modified at
|
||||
global scope
|
||||
global scope. Fixes a bug where declare -g x=y could modify `x'
|
||||
at a previous function scope
|
||||
|
||||
command.h
|
||||
- W_ASSIGNARRAY: new word flag, compound indexed array assignment
|
||||
@@ -4203,4 +4205,58 @@ subst.c
|
||||
- shell_expand_word_list: call make_internal_declare if -a option
|
||||
given to declaration builtin (W_ASSIGNARRAY); handle -g option with
|
||||
it (W_ASSNGLOBAL). Fixes inconsistency noticed by Vicente Couce
|
||||
Diaz <vituko@gmail.com>
|
||||
Diaz <vituko@gmail.com>, where declare -ag foo=(bar) could modify
|
||||
array variable foo at previous function scope, not global scope
|
||||
|
||||
12/27
|
||||
-----
|
||||
bashline.c
|
||||
- Minix needs the third argument to tputs to be a void funtion taking
|
||||
an int argument, not an int-returning function. Fix from
|
||||
John E. Malmberg <wb8tyw@qsl.net> as part of VMS bash port
|
||||
|
||||
12/29
|
||||
-----
|
||||
configure.ac,version.c,patchlevel.h
|
||||
- bash-4.3-devel: new version, new shell compatibility level (43)
|
||||
|
||||
subst.c
|
||||
- parameter_brace_patsub: put the bash-4.2 code back in from the
|
||||
change of 3/3 that runs the replacement string through quote
|
||||
removal, make it dependent on shell_compatibility_level <= 42
|
||||
|
||||
builtins/shopt.def
|
||||
- compat42: new shopt option
|
||||
- set_compatibility_level: change logic to set and unset various
|
||||
compat variables and shell_compatibility_level
|
||||
|
||||
COMPAT
|
||||
- new documentation for bash-4.3 compatibility changes
|
||||
|
||||
doc/{bash.1,bashref.texi}
|
||||
- compat42: document new shopt option
|
||||
|
||||
builtins/shopt.def
|
||||
- set_compatibility_opts: new function, sets the various shopt
|
||||
compat variables based on the value of shell_compatibility_level
|
||||
|
||||
builtins/common.h
|
||||
- set_compatibility_opts: new extern declaration
|
||||
|
||||
variables.c
|
||||
- BASH_COMPAT: new special variable; sets the shell compatibility
|
||||
level. Accepts values in decimal (4.2) or integer (42) form;
|
||||
Unsetting variable, setting it to empty string, or setting it to
|
||||
out-of-range value sets the shell's compatibility level to the
|
||||
default for the current version. Valid values are 3.1/31 through
|
||||
the current version
|
||||
- sv_shcompat: new function implementing logic for BASH_COMPAT
|
||||
|
||||
variables.h
|
||||
- sv_shcompat: new extern declaration
|
||||
|
||||
doc/{bash.1,bashref.texi}
|
||||
- BASH_COMPAT: description of new variable
|
||||
|
||||
lib/readline/complete.c
|
||||
- _rl_colored_stats: default back to 0 for 4.3 release branch
|
||||
|
||||
@@ -563,7 +563,6 @@ CWRU/PLATFORMS f
|
||||
CWRU/README f
|
||||
CWRU/changelog f
|
||||
CWRU/sh-redir-hack f
|
||||
CWRU/mh-folder-comp f
|
||||
doc/FAQ f
|
||||
doc/Makefile.in f
|
||||
doc/bash.1 f
|
||||
@@ -1135,6 +1134,8 @@ tests/run-vredir f
|
||||
tests/set-e.tests f
|
||||
tests/set-e1.sub f
|
||||
tests/set-e2.sub f
|
||||
tests/set-e3.sub f
|
||||
tests/set-e3a.sub f
|
||||
tests/set-e.right f
|
||||
tests/set-x.tests f
|
||||
tests/set-x1.sub f
|
||||
@@ -1167,6 +1168,8 @@ tests/varenv.right f
|
||||
tests/varenv.sh f
|
||||
tests/varenv1.sub f
|
||||
tests/varenv2.sub f
|
||||
tests/varenv3.sub f
|
||||
tests/varenv4.sub f
|
||||
tests/version f
|
||||
tests/version.mini f
|
||||
tests/vredir.tests f
|
||||
|
||||
@@ -0,0 +1,154 @@
|
||||
This is a terse description of the new features added to bash-4.3 since
|
||||
the release of bash-4.2. As always, the manual page (doc/bash.1) is
|
||||
the place to look for complete descriptions.
|
||||
|
||||
1. New Features in Bash
|
||||
|
||||
a. The `helptopic' completion action now maps to all the help topics, not just
|
||||
the shell builtins.
|
||||
|
||||
b. The `help' builtin no longer does prefix substring matching, so `help read'
|
||||
does not match `readonly'.
|
||||
|
||||
c. The shell can be compiled to not display a message about processes that
|
||||
terminate due to SIGTERM.
|
||||
|
||||
d. Non-interactive shells now react to the setting of checkwinsize and set
|
||||
LINES and COLUMNS after a foreground job exits.
|
||||
|
||||
e. There is a new shell option, `globasciiranges', which, when set to on,
|
||||
forces globbing range comparisons to use character ordering as if they
|
||||
were run in the C locale.
|
||||
|
||||
f. There is a new shell option, `direxpand', which makes filename completion
|
||||
expand variables in directory names in the way bash-4.1 did.
|
||||
|
||||
g. In Posix mode, the `command' builtin does not change whether or not a
|
||||
builtin it shadows is treated as an assignment builtin.
|
||||
|
||||
h. The `return' and `exit' builtins accept negative exit status arguments.
|
||||
|
||||
i. The word completion code checks whether or not a filename containing a
|
||||
shell variable expands to a directory name and appends `/' to the word
|
||||
as appropriate. The same code expands shell variables in command names
|
||||
when performing command completion.
|
||||
|
||||
j. In Posix mode, it is now an error to attempt to define a shell function
|
||||
with the same name as a Posix special builtin.
|
||||
|
||||
k. When compiled for strict Posix conformance, history expansion is disabled
|
||||
by default.
|
||||
|
||||
l. The history expansion character (!) does not cause history expansion when
|
||||
followed by the closing quote in a double-quoted string.
|
||||
|
||||
m. `complete' and its siblings compgen/compopt now takes a new `-o noquote'
|
||||
option to inhibit quoting of the completions.
|
||||
|
||||
n. Setting HISTSIZE to a value less than zero causes the history list to be
|
||||
unlimited (setting it 0 zero disables the history list).
|
||||
|
||||
o. Setting HISTFILESIZE to a value less than zero causes the history file size
|
||||
to be unlimited (setting it to 0 causes the history file to be truncated
|
||||
to zero size).
|
||||
|
||||
p. The `read' builtin now skips NUL bytes in the input.
|
||||
|
||||
q. There is a new `bind -X' option to print all key sequences bound to Unix
|
||||
commands.
|
||||
|
||||
r. When in Posix mode, `read' is interruptible by a trapped signal. After
|
||||
running the trap handler, read returns 128+signal and throws away any
|
||||
partially-read input.
|
||||
|
||||
s. The command completion code skips whitespace and assignment statements
|
||||
before looking for the command name word to be completed.
|
||||
|
||||
t. The build process has a new mechanism for constructing separate help files
|
||||
that better reflects the current set of compilation options.
|
||||
|
||||
u. The -nt and -ot options to test now work with files with nanosecond
|
||||
timestamp resolution.
|
||||
|
||||
v. The shell saves the command history in any shell for which history is
|
||||
enabled and HISTFILE is set, not just interactive shells.
|
||||
|
||||
w. The shell has `nameref' variables and new -n(/+n) options to declare and
|
||||
unset to use them, and a `test -R' option to test for them.
|
||||
|
||||
x. The shell now allows assigning, referencing, and unsetting elements of
|
||||
indexed arrays using negative subscripts (a[-1]=2, echo ${a[-1]}) which
|
||||
count back from the last element of the array.
|
||||
|
||||
y. The {x}<word redirection feature now allows words like {array[ind]} and
|
||||
can use variables with special meanings to the shell (e.g., BASH_XTRACEFD).
|
||||
|
||||
z. There is a new CHILD_MAX special shell variable; its value controls the
|
||||
number of exited child statues the shell remembers.
|
||||
|
||||
aa. There is a new configuration option (--enable-direxpand-default) that
|
||||
causes the `direxpand' shell option to be enabled by default.
|
||||
|
||||
bb. Bash does not do anything special to ensure that the file descriptor
|
||||
assigned to X in {x}<foo remains open after the block containing it
|
||||
completes.
|
||||
|
||||
cc. The `wait' builtin has a new `-n' option to wait for the next child to
|
||||
change status.
|
||||
|
||||
dd. The `printf' %(...)T format specifier now uses the current time if no
|
||||
argument is supplied.
|
||||
|
||||
ee. There is a new variable, BASH_COMPAT, that controls the current shell
|
||||
compatibility level.
|
||||
|
||||
2. New Features in Readline
|
||||
|
||||
a. Readline is now more responsive to SIGHUP and other fatal signals when
|
||||
reading input from the terminal or performing word completion but no
|
||||
longer attempts to run any not-allowable functions from a signal handler
|
||||
context.
|
||||
|
||||
b. There are new bindable commands to search the history for the string of
|
||||
characters between the beginning of the line and the point
|
||||
(history-substring-search-forward, history-substring-search-backward)
|
||||
|
||||
c. Readline allows quoted strings as the values of variables when setting
|
||||
them with `set'. As a side effect, trailing spaces and tabs are ignored
|
||||
when setting a string variable's value.
|
||||
|
||||
d. The history library creates a backup of the history file when writing it
|
||||
and restores the backup on a write error.
|
||||
|
||||
e. New application-settable variable: rl_filename_stat_hook: a function called
|
||||
with a filename before using it in a call to stat(2). Bash uses it to
|
||||
expand shell variables so things like $HOME/Downloads have a slash
|
||||
appended.
|
||||
|
||||
f. New bindable function `print-last-kbd-macro', prints the most-recently-
|
||||
defined keyboard macro in a reusable format.
|
||||
|
||||
g. New user-settable variable `colored-stats', enables use of colored text
|
||||
to denote file types when displaying possible completions (colored analog
|
||||
of visible-stats).
|
||||
|
||||
h. New user-settable variable `keyseq-timout', acts as an inter-character
|
||||
timeout when reading input or incremental search strings.
|
||||
|
||||
i. New application-callable function: rl_clear_history. Clears the history list
|
||||
and frees all readline-associated private data.
|
||||
|
||||
j. New user-settable variable, show-mode-in-prompt, adds a characters to the
|
||||
beginning of the prompt indicating the current editing mode.
|
||||
|
||||
k. New application-settable variable: rl_input_available_hook; function to be
|
||||
called when readline detects there is data available on its input file
|
||||
descriptor.
|
||||
|
||||
l. Readline calls an application-set event hook (rl_event_hook) after it gets
|
||||
a signal while reading input (read returns -1/EINTR but readline does not
|
||||
handle the signal immediately) to allow the application to handle or
|
||||
otherwise note it.
|
||||
|
||||
m. If the user-settable variable `history-size' is set to a value less than
|
||||
0, the history list size is unlimited.
|
||||
@@ -0,0 +1,494 @@
|
||||
This document details the changes between this version, bash-4.3-alpha,
|
||||
and the previous version, bash-4.2-release.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. Fixed several bugs concerning incomplete bracket expressions in filename
|
||||
generation (globbing) patterns.
|
||||
|
||||
b. Fixed a bug with single quotes and WORD in ${param op WORD} when running
|
||||
in Posix mode.
|
||||
|
||||
c. Fixed a bug that caused the pattern removal and pattern substitution word
|
||||
expansions and case statement word expansion to not match the empty string.
|
||||
|
||||
d. Fixed a bug that caused the tzset() function to not work after changing
|
||||
the TZ enviroment variable.
|
||||
|
||||
e. Fixed a bug that caused the RHS of an assignment statement to undergo
|
||||
word splitting when it contained an unquoted $@.
|
||||
|
||||
f. Fixed bugs that caused the shell to not react to a SIGINT sent while
|
||||
waiting for a child process to exit.
|
||||
|
||||
g. Bash doesn't try to run things in a signal handler context when it gets a
|
||||
signal (SIGINT/SIGHUP/etc) while reading input using readline but still
|
||||
be responsive to terminating signals.
|
||||
|
||||
h. Fixed a bug that caused bash to go into an infinite loop if a filename
|
||||
to be matched contained an invalid multibyte character.
|
||||
|
||||
i. Fixed a bug that caused PS4 to end up being truncated if it is longer
|
||||
than 128 bytes.
|
||||
|
||||
j. Fixed a bug that caused brace expansion to not skip over double-quoted
|
||||
command substitution.
|
||||
|
||||
k. System-specific updates for: DJGPP, HP/UX, Mac OS X
|
||||
|
||||
l. Fixed a bug in displaying commands that caused redirections to be associated
|
||||
with the wrong part of the command.
|
||||
|
||||
m. Fixed the coproc cleanup to unset the appropriate shell variables when a
|
||||
coproc terminates.
|
||||
|
||||
n. Fixed a bug that caused `fc' to dump core due to incorrect calculation of
|
||||
the last history entry.
|
||||
|
||||
o. Added workarounds for FreeBSD's implementation of faccessat/eaccess and
|
||||
`test -x'.
|
||||
|
||||
p. Fixed a bug that caused the shell to not match patterns containing
|
||||
control-A.
|
||||
|
||||
q. Fixed a bug that could result in doubled error messages when the `printf'
|
||||
builtin got a write error.
|
||||
|
||||
r. Fixed a bug that caused the shell to not correctly expand words containing
|
||||
multiple consecutive quoted empty strings (""""""aa).
|
||||
|
||||
s. Fixed a bug that caused the shell to not correctly parse multi-line
|
||||
process substitutions containing comments and quoted strings.
|
||||
|
||||
t. Fixed a problem with the bash malloc's internal idea of the top of the
|
||||
memory heap that resulted in incorrect decisions to try to reduce the
|
||||
break and give memory back to the kernel.
|
||||
|
||||
u. There are changes to the expansions peformed on compound array assignments,
|
||||
in an effort to make foo=( [ind1]=bar [ind2]=baz ) identical to
|
||||
foo[ind1]=bar foo[ind2]=baz.
|
||||
|
||||
v. Bash now reports an error if `read -a name' is used when `name' is an
|
||||
existing associative array.
|
||||
|
||||
w. Fixed a bug that allowed an attempted assignment to a readonly variable
|
||||
in an arithmetic expression to not return failure.
|
||||
|
||||
x. Fixed several bugs that caused completion functions to be invoked even when
|
||||
the cursor was before the first word in the command.
|
||||
|
||||
y. Fixed a bug that caused parsing a command substitution to overwrite the
|
||||
parsing state associated with the complete input line.
|
||||
|
||||
z. Fixed several bugs with the built-in snprintf replacement and field widths
|
||||
and floating point.
|
||||
|
||||
aa. Fixed a bug that caused incorrect offset calculations and input buffer
|
||||
corruption when reading files longer than 2^31 bytes.
|
||||
|
||||
bb. Fixed several bugs where bash performed arithmetic evaluation in contexts
|
||||
where evaluation is suppressed.
|
||||
|
||||
cc. Fixed a bug that caused bash to close FIFOs used for process substitution
|
||||
too early when a shell function was executing, but protect against using
|
||||
all file descriptors when the shell functions are invoked inside loops.
|
||||
|
||||
dd. Added checks for printable (and non-printable) multibyte characters for
|
||||
use in error messages.
|
||||
|
||||
ee. Fixed a bug that caused ^O (operate-and-get-next) to not work correctly
|
||||
at the end of the history list.
|
||||
|
||||
ff. Fixed a bug that caused command-oriented history to incorrectly combine
|
||||
here documents into one line.
|
||||
|
||||
gg. Fixed a bug that caused importing SHELLOPTS from the environment into a
|
||||
Posix-mode shell to print an error message and refuse to parse it.
|
||||
|
||||
hh. Fixed a bug that caused the shell to delete an extra history entry when
|
||||
using `history -s'.
|
||||
|
||||
ii. Fixed a bug that caused floating-point exceptions and overflow errors
|
||||
for the / and % arithmetic operators when using INTMAX_MIN and -1.
|
||||
|
||||
jj. Fixed a bug that caused parsing errors when reading an arithmetic for
|
||||
loop inside a command substitution.
|
||||
|
||||
kk. Fixed a bug that caused a readonly function to be unset when unset was
|
||||
called without the -f or -v option.
|
||||
|
||||
ll. Fixed several bugs in the code that quotes characters special to regular
|
||||
expressions when used in a quoted string on the RHS of the =~ operator
|
||||
to the [[ command.
|
||||
|
||||
mm. Fixed a bug that caused redirections to fail because the file descriptor
|
||||
limit was set to a value less than 10.
|
||||
|
||||
nn. Fixed a bug that caused the `read' builtin to execute code in a signal
|
||||
handler context if read timed out.
|
||||
|
||||
oo. Fixed a bug that caused extended globbing patterns to not match files
|
||||
beginning with `.' correctly when a `.' was explicitly supplied in the
|
||||
pattern.
|
||||
|
||||
pp. Fixed a bug that caused key sequences longer than two characters to not
|
||||
work when used with `bind -x'.
|
||||
|
||||
qq. Fixed a bug that resulted in redefined functions having the wrong source
|
||||
file names in BASH_SOURCE.
|
||||
|
||||
rr. Fixed a bug that caused the read builtin to assign null strings to variables
|
||||
when using `read -N', which caused core dumps when referenced
|
||||
|
||||
ss. Fixed a bug that caused `bash -m script' to not enable job control while
|
||||
running the script.
|
||||
|
||||
tt. Fixed a bug that caused `printf -v var' to dump core when used with the
|
||||
%b format code.
|
||||
|
||||
uu. Fixed a bug that caused the shell to exit with the wrong status if -e was
|
||||
active and the shell exited on a substitution error.
|
||||
|
||||
vv. Fixed a bug that caused the shell to seg fault if an array variable with
|
||||
the same name as an existing associative array was implicitly created by
|
||||
an assignment (declare a[n]=b).
|
||||
|
||||
ww. Fixed a bug that caused a redirection to misbehave if the number specified
|
||||
for a file descriptor overflows an intmax_t.
|
||||
|
||||
xx. Fixed several bugs with the handling of valid and invalid unicode character
|
||||
values when used with the \u and \U escape sequences to printf and $'...'.
|
||||
|
||||
yy. Fixed a bug that caused tildes to not be escaped in expanded filenames,
|
||||
making them subject to later expansion.
|
||||
|
||||
zz. When using the pattern substitution word expansion, bash now runs the
|
||||
replacement string through quote removal, since it allows quotes in that
|
||||
string to act as escape characters. This is not backwards compatible, so
|
||||
it can be disabled by setting the bash compatibility mode to 4.2.
|
||||
|
||||
aaa. Fixed the rest of the cases where the shell runs non-allowed code in a
|
||||
signal handler context.
|
||||
|
||||
bbb. Fixed a bug that caused spurious DEL characters (\177) to appear in
|
||||
double-quoted expansion where the RHS is evaluated to the empty string.
|
||||
|
||||
ccc. Fixed a bug that caused the use of the shell's internal random number
|
||||
generator for temporary file names to perturb the random number
|
||||
sequence.
|
||||
|
||||
ddd. Fixed several bugs that caused `declare -g' to not set the right global
|
||||
variables or to misbehave when declaring global indexed arrays.
|
||||
|
||||
eee. Fixed a logic bug that caused extended globbing in a multibyte locale to
|
||||
cause failures when using the pattern substititution word expansions.
|
||||
|
||||
fff. Fixed a bug that caused the `lastpipe' option to corrupt the file
|
||||
descriptor used to read the script.
|
||||
|
||||
ggg. Fixed a bug that causes the shell to delete DEL characters in the
|
||||
expanded value of variables used in the same quoted string as variables
|
||||
that expand to nothing.
|
||||
|
||||
hhh. Fixed a bug that caused the shell to assign the wrong value from an
|
||||
assignment like (( x=7 )) when `x' was an existing array variable.
|
||||
|
||||
iii. Fixed a bug that caused the shell to misbehave when generating sequences
|
||||
and the boundary values overflow an intmax_t.
|
||||
|
||||
jjj. Fixed a bug caused expansion errors if an expansion of "$@" appeared
|
||||
next to another expansion (e.g.. "${@}${x}").
|
||||
|
||||
kkk. Fixed a potential buffer overflow bug when performing /dev/fd expansion.
|
||||
|
||||
lll. Fixed a bug that resulted in an extra semicolon being added to compound
|
||||
assignments when they were added to the history list.
|
||||
|
||||
mmm. Fixed a bug that caused mapfile to read one extra line from the input.
|
||||
|
||||
nnn. Fixed a bug that caused the mail checking code to use uninitialized
|
||||
values.
|
||||
|
||||
ooo. Fixed a bug that prevented history timestamps from being saved if the
|
||||
history comment character is unset.
|
||||
|
||||
ppp. Fixed a bug that caused the case-modifying expansions to not work with
|
||||
multibyte characters.
|
||||
|
||||
qqq. Fixed a bug that caused the edit-and-execute bindable readline command
|
||||
to see the wrong data if invoked in the middle of a multi-line quoted
|
||||
string.
|
||||
|
||||
rrr. Fixed a bug that resulted in the shell returning the wrong exit status
|
||||
for a background command on systems that recycle PIDs very quickly.
|
||||
|
||||
sss. Fixed a bug that caused asynchronous group commands to not run any EXIT
|
||||
trap defined in the body of the command.
|
||||
|
||||
ttt. Fixed a bug that caused `eval "... ; return"' to not clean up properly.
|
||||
|
||||
uuu. Fixed a bug that caused the shell to dump core if `read' reads an escaped
|
||||
IFS whitespace character.
|
||||
|
||||
vvv. Fixed a bug that caused BASH_COMMAND to be set to an incorrect value when
|
||||
executing a (...) subshell.
|
||||
|
||||
www. Fixed a pointer aliasing bug with the token string in arithmetic
|
||||
evaluation.
|
||||
|
||||
xxx. Fixed a bug with parsing multi-line command substitutions when reading
|
||||
the `do' keyword followed by whitespace.
|
||||
|
||||
yyy. Fixed a bug that caused the shell to seg fault if the time given to the
|
||||
printf %(...)T format overflowed the value accepted by localtime(3).
|
||||
|
||||
zzz. Fixed a problem with displaying help topics in two columns when the
|
||||
translated text contained multibyte characters.
|
||||
|
||||
aaaa. Fixed a bug with the extended globbing pattern matcher where a `*' was
|
||||
followed by a negated extended glob pattern.
|
||||
|
||||
bbbb. Fixed a race condition with short-lived coproc creation and reaping that
|
||||
caused the child process to be reaped before the various coproc shell
|
||||
variables were initialized.
|
||||
|
||||
cccc. Fixed a bug where turning off `errexit' in command substitution subshells
|
||||
was not reflected in $SHELLOPTS.
|
||||
|
||||
dddd. Partially fixed an inconsistency in how the shell treated shell
|
||||
functions run from an EXIT trap.
|
||||
|
||||
eeee. Fixed a bug in how the shell invalidated FIFOs used for process
|
||||
substitution when executing a pipeline (once rather than in every child).
|
||||
|
||||
ffff. Fixed a bug that occurred when expanding a special variable ($@, $*)
|
||||
within double quotes and the expansion resulted in an empty string.
|
||||
|
||||
gggg. Fixed bugs with executing a SIGCHLD trap handler to make sure that it's
|
||||
executed once per exited child.
|
||||
|
||||
hhhh. Fixed a bug that caused `declare' and `test' to find variables that
|
||||
had been given attributes but not assigned values. Such variables are
|
||||
not set.
|
||||
|
||||
iiii. Fixed a bug that caused commands in process substitutions to not look in
|
||||
the local temporary environment when performing word expansions.
|
||||
|
||||
jjjj. Fixed several problems with globstar expansions (**/**) returning null
|
||||
filenames and multiple instances of the same pathname.
|
||||
|
||||
kkkk. Fixed an oversight that did not allow the exit status of `coproc' to
|
||||
be inverted using `!'.
|
||||
|
||||
llll. Fixed a bug that caused the -e option to be re-enabled using `set -e'
|
||||
even when executing in a context where -e is ignored.
|
||||
|
||||
mmmm. Fixed a (mostly theoretical) bug with input lines longer than SIZE_MAX.
|
||||
|
||||
2. Changes to Readline
|
||||
|
||||
a. Fixed a bug that did not allow the `dd', `cc', or `yy' vi editing mode
|
||||
commands to work on the entire line.
|
||||
|
||||
b. Fixed a bug that caused redisplay problems with prompts longer than 128
|
||||
characters and history searches.
|
||||
|
||||
c. Fixed a bug that caused readline to try and run code to modify its idea
|
||||
of the screen size in a signal handler context upon receiving a SIGWINCH.
|
||||
|
||||
d. Fixed a bug that caused the `meta' key to be enabled beyond the duration
|
||||
of an individual call top readline().
|
||||
|
||||
e. Added a workaround for a wcwidth bug in Mac OS X that caused readline's
|
||||
redisplay to mishandle zero-width combining characters.
|
||||
|
||||
f. Fixed a bug that caused readline to `forget' part of a key sequence when
|
||||
a multiple-key sequence caused it to break out of an incremental search.
|
||||
|
||||
g. Fixed bugs that caused readline to execute code in a signal handler
|
||||
context if interrupted while reading from the file system during completion.
|
||||
|
||||
h. Fixed a bug that caused readline to `forget' part of a key sequence when
|
||||
reading an unbound multi-character key sequence.
|
||||
|
||||
i. Fixed a bug that caused Readline's signal handlers to be installed beyond
|
||||
the bounds of a single call to readline().
|
||||
|
||||
j. Fixed a bug that caused the `.' command to not redo the most recent `R'
|
||||
command in vi mode.
|
||||
|
||||
k. Fixed a bug that caused ignoring case in completion matches to result in
|
||||
readline using the wrong match.
|
||||
|
||||
l. Paren matching now works in vi insert mode.
|
||||
|
||||
m. Fix menu-completion to make show-all-if-ambiguous and menu-complete-display-prefix
|
||||
work together.
|
||||
|
||||
n. Fixed a bug that didn't allow the `cc', `dd', or `yy' commands to be redone
|
||||
in vi editing mode.
|
||||
|
||||
o. Fixed a bug that caused the filename comparison code to not compare
|
||||
multibyte characters correctly when using case-sensitive or case-mapping
|
||||
comparisons.
|
||||
|
||||
p. Fixed the input reading loop to call the input hook function only when there
|
||||
is no terminal input available.
|
||||
|
||||
q. Fixed a bug that caused binding a macro to a multi-character key sequence
|
||||
where the sequence and macro value share a common prefix to not perform
|
||||
the macro replacement.
|
||||
|
||||
r. Fixed several redisplay errors with multibyte characters and prompts
|
||||
containing invisible characters when using horizontal scrolling.
|
||||
|
||||
3. New Features in Bash
|
||||
|
||||
a. The `helptopic' completion action now maps to all the help topics, not just
|
||||
the shell builtins.
|
||||
|
||||
b. The `help' builtin no longer does prefix substring matching, so `help read'
|
||||
does not match `readonly'.
|
||||
|
||||
c. The shell can be compiled to not display a message about processes that
|
||||
terminate due to SIGTERM.
|
||||
|
||||
d. Non-interactive shells now react to the setting of checkwinsize and set
|
||||
LINES and COLUMNS after a foreground job exits.
|
||||
|
||||
e. There is a new shell option, `globasciiranges', which, when set to on,
|
||||
forces globbing range comparisons to use character ordering as if they
|
||||
were run in the C locale.
|
||||
|
||||
f. There is a new shell option, `direxpand', which makes filename completion
|
||||
expand variables in directory names in the way bash-4.1 did.
|
||||
|
||||
g. In Posix mode, the `command' builtin does not change whether or not a
|
||||
builtin it shadows is treated as an assignment builtin.
|
||||
|
||||
h. The `return' and `exit' builtins accept negative exit status arguments.
|
||||
|
||||
i. The word completion code checks whether or not a filename containing a
|
||||
shell variable expands to a directory name and appends `/' to the word
|
||||
as appropriate. The same code expands shell variables in command names
|
||||
when performing command completion.
|
||||
|
||||
j. In Posix mode, it is now an error to attempt to define a shell function
|
||||
with the same name as a Posix special builtin.
|
||||
|
||||
k. When compiled for strict Posix conformance, history expansion is disabled
|
||||
by default.
|
||||
|
||||
l. The history expansion character (!) does not cause history expansion when
|
||||
followed by the closing quote in a double-quoted string.
|
||||
|
||||
m. `complete' and its siblings compgen/compopt now takes a new `-o noquote'
|
||||
option to inhibit quoting of the completions.
|
||||
|
||||
n. Setting HISTSIZE to a value less than zero causes the history list to be
|
||||
unlimited (setting it 0 zero disables the history list).
|
||||
|
||||
o. Setting HISTFILESIZE to a value less than zero causes the history file size
|
||||
to be unlimited (setting it to 0 causes the history file to be truncated
|
||||
to zero size).
|
||||
|
||||
p. The `read' builtin now skips NUL bytes in the input.
|
||||
|
||||
q. There is a new `bind -X' option to print all key sequences bound to Unix
|
||||
commands.
|
||||
|
||||
r. When in Posix mode, `read' is interruptible by a trapped signal. After
|
||||
running the trap handler, read returns 128+signal and throws away any
|
||||
partially-read input.
|
||||
|
||||
s. The command completion code skips whitespace and assignment statements
|
||||
before looking for the command name word to be completed.
|
||||
|
||||
t. The build process has a new mechanism for constructing separate help files
|
||||
that better reflects the current set of compilation options.
|
||||
|
||||
u. The -nt and -ot options to test now work with files with nanosecond
|
||||
timestamp resolution.
|
||||
|
||||
v. The shell saves the command history in any shell for which history is
|
||||
enabled and HISTFILE is set, not just interactive shells.
|
||||
|
||||
w. The shell has `nameref' variables and new -n(/+n) options to declare and
|
||||
unset to use them, and a `test -R' option to test for them.
|
||||
|
||||
x. The shell now allows assigning, referencing, and unsetting elements of
|
||||
indexed arrays using negative subscripts (a[-1]=2, echo ${a[-1]}) which
|
||||
count back from the last element of the array.
|
||||
|
||||
y. The {x}<word redirection feature now allows words like {array[ind]} and
|
||||
can use variables with special meanings to the shell (e.g., BASH_XTRACEFD).
|
||||
|
||||
z. There is a new CHILD_MAX special shell variable; its value controls the
|
||||
number of exited child statues the shell remembers.
|
||||
|
||||
aa. There is a new configuration option (--enable-direxpand-default) that
|
||||
causes the `direxpand' shell option to be enabled by default.
|
||||
|
||||
bb. Bash does not do anything special to ensure that the file descriptor
|
||||
assigned to X in {x}<foo remains open after the block containing it
|
||||
completes.
|
||||
|
||||
cc. The `wait' builtin has a new `-n' option to wait for the next child to
|
||||
change status.
|
||||
|
||||
dd. The `printf' %(...)T format specifier now uses the current time if no
|
||||
argument is supplied.
|
||||
|
||||
ee. There is a new variable, BASH_COMPAT, that controls the current shell
|
||||
compatibility level.
|
||||
|
||||
4. New Features in Readline
|
||||
|
||||
a. Readline is now more responsive to SIGHUP and other fatal signals when
|
||||
reading input from the terminal or performing word completion but no
|
||||
longer attempts to run any not-allowable functions from a signal handler
|
||||
context.
|
||||
|
||||
b. There are new bindable commands to search the history for the string of
|
||||
characters between the beginning of the line and the point
|
||||
(history-substring-search-forward, history-substring-search-backward)
|
||||
|
||||
c. Readline allows quoted strings as the values of variables when setting
|
||||
them with `set'. As a side effect, trailing spaces and tabs are ignored
|
||||
when setting a string variable's value.
|
||||
|
||||
d. The history library creates a backup of the history file when writing it
|
||||
and restores the backup on a write error.
|
||||
|
||||
e. New application-settable variable: rl_filename_stat_hook: a function called
|
||||
with a filename before using it in a call to stat(2). Bash uses it to
|
||||
expand shell variables so things like $HOME/Downloads have a slash
|
||||
appended.
|
||||
|
||||
f. New bindable function `print-last-kbd-macro', prints the most-recently-
|
||||
defined keyboard macro in a reusable format.
|
||||
|
||||
g. New user-settable variable `colored-stats', enables use of colored text
|
||||
to denote file types when displaying possible completions (colored analog
|
||||
of visible-stats).
|
||||
|
||||
h. New user-settable variable `keyseq-timout', acts as an inter-character
|
||||
timeout when reading input or incremental search strings.
|
||||
|
||||
i. New application-callable function: rl_clear_history. Clears the history list
|
||||
and frees all readline-associated private data.
|
||||
|
||||
j. New user-settable variable, show-mode-in-prompt, adds a characters to the
|
||||
beginning of the prompt indicating the current editing mode.
|
||||
|
||||
k. New application-settable variable: rl_input_available_hook; function to be
|
||||
called when readline detects there is data available on its input file
|
||||
descriptor.
|
||||
|
||||
l. Readline calls an application-set event hook (rl_event_hook) after it gets
|
||||
a signal while reading input (read returns -1/EINTR but readline does not
|
||||
handle the signal immediately) to allow the application to handle or
|
||||
otherwise note it.
|
||||
|
||||
m. If the user-settable variable `history-size' is set to a value less than
|
||||
0, the history list size is unlimited.
|
||||
@@ -1,7 +1,7 @@
|
||||
Introduction
|
||||
============
|
||||
|
||||
This is GNU Bash, version 4.2. Bash is the GNU Project's Bourne
|
||||
This is GNU Bash, version 4.3. Bash is the GNU Project's Bourne
|
||||
Again SHell, a complete implementation of the POSIX shell spec,
|
||||
but also with interactive command line editing, job control on
|
||||
architectures that support it, csh-like features such as history
|
||||
@@ -15,8 +15,8 @@ See the file POSIX for a discussion of how the Bash defaults differ
|
||||
from the POSIX spec and a description of the Bash `posix mode'.
|
||||
|
||||
There are some user-visible incompatibilities between this version
|
||||
of Bash and previous widely-distributed versions, bash-4.0 and
|
||||
bash-4.1. For details, see the file COMPAT. The NEWS file tersely
|
||||
of Bash and previous widely-distributed versions, bash-4.1 and
|
||||
bash-4.2. For details, see the file COMPAT. The NEWS file tersely
|
||||
lists features that are new in this release.
|
||||
|
||||
Bash is free software, distributed under the terms of the [GNU] General
|
||||
|
||||
@@ -0,0 +1,96 @@
|
||||
Introduction
|
||||
============
|
||||
|
||||
This is GNU Bash, version 4.2. Bash is the GNU Project's Bourne
|
||||
Again SHell, a complete implementation of the POSIX shell spec,
|
||||
but also with interactive command line editing, job control on
|
||||
architectures that support it, csh-like features such as history
|
||||
substitution and brace expansion, and a slew of other features.
|
||||
For more information on the features of Bash that are new to this
|
||||
type of shell, see the file `doc/bashref.texi'. There is also a
|
||||
large Unix-style man page. The man page is the definitive description
|
||||
of the shell's features.
|
||||
|
||||
See the file POSIX for a discussion of how the Bash defaults differ
|
||||
from the POSIX spec and a description of the Bash `posix mode'.
|
||||
|
||||
There are some user-visible incompatibilities between this version
|
||||
of Bash and previous widely-distributed versions, bash-4.0 and
|
||||
bash-4.1. For details, see the file COMPAT. The NEWS file tersely
|
||||
lists features that are new in this release.
|
||||
|
||||
Bash is free software, distributed under the terms of the [GNU] General
|
||||
Public License as published by the Free Software Foundation,
|
||||
version 3 of the License (or any later version). For more information,
|
||||
see the file COPYING.
|
||||
|
||||
A number of frequently-asked questions are answered in the file
|
||||
`doc/FAQ'.
|
||||
|
||||
To compile Bash, type `./configure', then `make'. Bash auto-configures
|
||||
the build process, so no further intervention should be necessary. Bash
|
||||
builds with `gcc' by default if it is available. If you want to use `cc'
|
||||
instead, type
|
||||
|
||||
CC=cc ./configure
|
||||
|
||||
if you are using a Bourne-style shell. If you are not, the following
|
||||
may work:
|
||||
|
||||
env CC=cc ./configure
|
||||
|
||||
Read the file INSTALL in this directory for more information about how
|
||||
to customize and control the build process. The file NOTES contains
|
||||
platform-specific installation and configuration information.
|
||||
|
||||
If you are a csh user and wish to convert your csh aliases to Bash
|
||||
aliases, you may wish to use the script `examples/misc/alias-conv.sh'
|
||||
as a starting point. The script `examples/misc/cshtobash' is a
|
||||
more ambitious script that attempts to do a more complete job.
|
||||
|
||||
Reporting Bugs
|
||||
==============
|
||||
|
||||
Bug reports for bash should be sent to:
|
||||
|
||||
bug-bash@gnu.org
|
||||
|
||||
using the `bashbug' program that is built and installed at the same
|
||||
time as bash.
|
||||
|
||||
The discussion list `bug-bash@gnu.org' often contains information
|
||||
about new ports of Bash, or discussions of new features or behavior
|
||||
changes that people would like. This mailing list is also available
|
||||
as a usenet newsgroup: gnu.bash.bug.
|
||||
|
||||
When you send a bug report, please use the `bashbug' program that is
|
||||
built at the same time as bash. If bash fails to build, try building
|
||||
bashbug directly with `make bashbug'. If you cannot build `bashbug',
|
||||
please send mail to bug-bash@gnu.org with the following information:
|
||||
|
||||
* the version number and release status of Bash (e.g., 2.05a-release)
|
||||
* the machine and OS that it is running on (you may run
|
||||
`bashversion -l' from the bash build directory for this information)
|
||||
* a list of the compilation flags or the contents of `config.h', if
|
||||
appropriate
|
||||
* a description of the bug
|
||||
* a recipe for recreating the bug reliably
|
||||
* a fix for the bug if you have one!
|
||||
|
||||
The `bashbug' program includes much of this automatically.
|
||||
|
||||
If you would like to contact the Bash maintainers directly, send mail
|
||||
to bash-maintainers@gnu.org.
|
||||
|
||||
While the Bash maintainers do not promise to fix all bugs, we would
|
||||
like this shell to be the best that we can make it.
|
||||
|
||||
Enjoy!
|
||||
|
||||
Chet Ramey
|
||||
chet.ramey@case.edu
|
||||
|
||||
Copying and distribution of this file, with or without modification,
|
||||
are permitted in any medium without royalty provided the copyright
|
||||
notice and this notice are preserved. This file is offered as-is,
|
||||
without any warranty.
|
||||
+20650
-4045
File diff suppressed because it is too large
Load Diff
+12
-268
@@ -6,253 +6,6 @@
|
||||
bless( [
|
||||
'0',
|
||||
1,
|
||||
[
|
||||
'/opt/local/share/autoconf'
|
||||
],
|
||||
[
|
||||
'/opt/local/share/autoconf/autoconf/autoconf.m4f',
|
||||
'aclocal.m4',
|
||||
'configure.in'
|
||||
],
|
||||
{
|
||||
'_LT_AC_TAGCONFIG' => 1,
|
||||
'AM_PROG_F77_C_O' => 1,
|
||||
'AC_INIT' => 1,
|
||||
'm4_pattern_forbid' => 1,
|
||||
'_AM_COND_IF' => 1,
|
||||
'AC_CANONICAL_TARGET' => 1,
|
||||
'AC_SUBST' => 1,
|
||||
'AC_CONFIG_LIBOBJ_DIR' => 1,
|
||||
'AC_FC_SRCEXT' => 1,
|
||||
'AC_CANONICAL_HOST' => 1,
|
||||
'AC_PROG_LIBTOOL' => 1,
|
||||
'AM_INIT_AUTOMAKE' => 1,
|
||||
'AM_PATH_GUILE' => 1,
|
||||
'AC_CONFIG_SUBDIRS' => 1,
|
||||
'AM_AUTOMAKE_VERSION' => 1,
|
||||
'LT_CONFIG_LTDL_DIR' => 1,
|
||||
'AC_REQUIRE_AUX_FILE' => 1,
|
||||
'AC_CONFIG_LINKS' => 1,
|
||||
'm4_sinclude' => 1,
|
||||
'LT_SUPPORTED_TAG' => 1,
|
||||
'AM_MAINTAINER_MODE' => 1,
|
||||
'AM_NLS' => 1,
|
||||
'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
|
||||
'AM_MAKEFILE_INCLUDE' => 1,
|
||||
'_m4_warn' => 1,
|
||||
'AM_PROG_CXX_C_O' => 1,
|
||||
'_AM_COND_ENDIF' => 1,
|
||||
'_AM_MAKEFILE_INCLUDE' => 1,
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
'AC_CANONICAL_SYSTEM' => 1,
|
||||
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|
||||
'AC_CONFIG_HEADERS' => 1,
|
||||
'AC_DEFINE_TRACE_LITERAL' => 1,
|
||||
'AM_POT_TOOLS' => 1,
|
||||
'm4_include' => 1,
|
||||
'_AM_COND_ELSE' => 1,
|
||||
'AC_SUBST_TRACE' => 1
|
||||
}
|
||||
], 'Autom4te::Request' ),
|
||||
bless( [
|
||||
'1',
|
||||
1,
|
||||
[
|
||||
'/sw/share/autoconf'
|
||||
],
|
||||
[
|
||||
'/sw/share/autoconf/autoconf/autoconf.m4f',
|
||||
'aclocal.m4',
|
||||
'configure.in'
|
||||
],
|
||||
{
|
||||
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|
||||
'_LT_AC_TAGCONFIG' => 1,
|
||||
'm4_pattern_forbid' => 1,
|
||||
'AC_INIT' => 1,
|
||||
'AC_CANONICAL_TARGET' => 1,
|
||||
'_AM_COND_IF' => 1,
|
||||
'AC_CONFIG_LIBOBJ_DIR' => 1,
|
||||
'AC_SUBST' => 1,
|
||||
'AC_CANONICAL_HOST' => 1,
|
||||
'AC_FC_SRCEXT' => 1,
|
||||
'AC_PROG_LIBTOOL' => 1,
|
||||
'AM_INIT_AUTOMAKE' => 1,
|
||||
'AC_CONFIG_SUBDIRS' => 1,
|
||||
'AM_PATH_GUILE' => 1,
|
||||
'AM_AUTOMAKE_VERSION' => 1,
|
||||
'LT_CONFIG_LTDL_DIR' => 1,
|
||||
'AC_CONFIG_LINKS' => 1,
|
||||
'AC_REQUIRE_AUX_FILE' => 1,
|
||||
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|
||||
'm4_sinclude' => 1,
|
||||
'AM_MAINTAINER_MODE' => 1,
|
||||
'AM_NLS' => 1,
|
||||
'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
|
||||
'_m4_warn' => 1,
|
||||
'AM_MAKEFILE_INCLUDE' => 1,
|
||||
'AM_PROG_CXX_C_O' => 1,
|
||||
'_AM_MAKEFILE_INCLUDE' => 1,
|
||||
'_AM_COND_ENDIF' => 1,
|
||||
'AM_ENABLE_MULTILIB' => 1,
|
||||
'AM_SILENT_RULES' => 1,
|
||||
'AM_PROG_MOC' => 1,
|
||||
'AC_CONFIG_FILES' => 1,
|
||||
'LT_INIT' => 1,
|
||||
'include' => 1,
|
||||
'AM_GNU_GETTEXT' => 1,
|
||||
'AM_PROG_AR' => 1,
|
||||
'AC_LIBSOURCE' => 1,
|
||||
'AC_CANONICAL_BUILD' => 1,
|
||||
'AM_PROG_FC_C_O' => 1,
|
||||
'AC_FC_FREEFORM' => 1,
|
||||
'AH_OUTPUT' => 1,
|
||||
'AC_CONFIG_AUX_DIR' => 1,
|
||||
'_AM_SUBST_NOTMAKE' => 1,
|
||||
'm4_pattern_allow' => 1,
|
||||
'AM_PROG_CC_C_O' => 1,
|
||||
'sinclude' => 1,
|
||||
'AM_CONDITIONAL' => 1,
|
||||
'AC_CANONICAL_SYSTEM' => 1,
|
||||
'AM_XGETTEXT_OPTION' => 1,
|
||||
'AC_CONFIG_HEADERS' => 1,
|
||||
'AC_DEFINE_TRACE_LITERAL' => 1,
|
||||
'AM_POT_TOOLS' => 1,
|
||||
'm4_include' => 1,
|
||||
'_AM_COND_ELSE' => 1,
|
||||
'AC_SUBST_TRACE' => 1
|
||||
}
|
||||
], 'Autom4te::Request' ),
|
||||
bless( [
|
||||
'2',
|
||||
1,
|
||||
[
|
||||
'/usr/share/autoconf'
|
||||
],
|
||||
[
|
||||
'/usr/share/autoconf/autoconf/autoconf.m4f',
|
||||
'aclocal.m4',
|
||||
'configure.in'
|
||||
],
|
||||
{
|
||||
'm4_pattern_forbid' => 1,
|
||||
'AC_CONFIG_LIBOBJ_DIR' => 1,
|
||||
'AC_C_VOLATILE' => 1,
|
||||
'AC_TYPE_OFF_T' => 1,
|
||||
'AC_FUNC_CLOSEDIR_VOID' => 1,
|
||||
'AC_REPLACE_FNMATCH' => 1,
|
||||
'AC_PROG_LIBTOOL' => 1,
|
||||
'AC_FUNC_STAT' => 1,
|
||||
'AC_FUNC_WAIT3' => 1,
|
||||
'AC_HEADER_TIME' => 1,
|
||||
'AC_FUNC_LSTAT' => 1,
|
||||
'AC_STRUCT_TM' => 1,
|
||||
'AM_AUTOMAKE_VERSION' => 1,
|
||||
'AC_FUNC_GETMNTENT' => 1,
|
||||
'AC_TYPE_MODE_T' => 1,
|
||||
'AC_FUNC_STRTOD' => 1,
|
||||
'AC_CHECK_HEADERS' => 1,
|
||||
'AC_FUNC_STRNLEN' => 1,
|
||||
'm4_sinclude' => 1,
|
||||
'AC_PROG_CXX' => 1,
|
||||
'AC_PATH_X' => 1,
|
||||
'AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK' => 1,
|
||||
'AC_PROG_AWK' => 1,
|
||||
'_m4_warn' => 1,
|
||||
'AC_HEADER_STDC' => 1,
|
||||
'AC_HEADER_MAJOR' => 1,
|
||||
'AC_FUNC_ERROR_AT_LINE' => 1,
|
||||
'AC_PROG_GCC_TRADITIONAL' => 1,
|
||||
'AC_LIBSOURCE' => 1,
|
||||
'AC_FUNC_MBRTOWC' => 1,
|
||||
'AC_STRUCT_ST_BLOCKS' => 1,
|
||||
'AC_TYPE_SIGNAL' => 1,
|
||||
'AC_TYPE_UID_T' => 1,
|
||||
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|
||||
'AC_CONFIG_AUX_DIR' => 1,
|
||||
'm4_pattern_allow' => 1,
|
||||
'sinclude' => 1,
|
||||
'AC_DEFINE_TRACE_LITERAL' => 1,
|
||||
'AC_FUNC_STRERROR_R' => 1,
|
||||
'AC_PROG_CC' => 1,
|
||||
'AC_DECL_SYS_SIGLIST' => 1,
|
||||
'AC_FUNC_FORK' => 1,
|
||||
'AC_FUNC_STRCOLL' => 1,
|
||||
'AC_FUNC_VPRINTF' => 1,
|
||||
'AC_PROG_YACC' => 1,
|
||||
'AC_INIT' => 1,
|
||||
'AC_STRUCT_TIMEZONE' => 1,
|
||||
'AC_FUNC_CHOWN' => 1,
|
||||
'AC_SUBST' => 1,
|
||||
'AC_FUNC_ALLOCA' => 1,
|
||||
'AC_CANONICAL_HOST' => 1,
|
||||
'AC_FUNC_GETPGRP' => 1,
|
||||
'AC_PROG_RANLIB' => 1,
|
||||
'AM_INIT_AUTOMAKE' => 1,
|
||||
'AC_FUNC_SETPGRP' => 1,
|
||||
'AC_CONFIG_SUBDIRS' => 1,
|
||||
'AC_FUNC_MMAP' => 1,
|
||||
'AC_FUNC_REALLOC' => 1,
|
||||
'AC_TYPE_SIZE_T' => 1,
|
||||
'AC_CONFIG_LINKS' => 1,
|
||||
'AC_CHECK_TYPES' => 1,
|
||||
'AC_CHECK_MEMBERS' => 1,
|
||||
'AM_MAINTAINER_MODE' => 1,
|
||||
'AC_FUNC_UTIME_NULL' => 1,
|
||||
'AC_FUNC_SELECT_ARGTYPES' => 1,
|
||||
'AC_HEADER_STAT' => 1,
|
||||
'AC_FUNC_STRFTIME' => 1,
|
||||
'AC_PROG_CPP' => 1,
|
||||
'AC_C_INLINE' => 1,
|
||||
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|
||||
'AC_C_CONST' => 1,
|
||||
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|
||||
'AC_CONFIG_FILES' => 1,
|
||||
'include' => 1,
|
||||
'AC_FUNC_SETVBUF_REVERSED' => 1,
|
||||
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|
||||
'AM_GNU_GETTEXT' => 1,
|
||||
'AC_CHECK_LIB' => 1,
|
||||
'AC_FUNC_OBSTACK' => 1,
|
||||
'AC_FUNC_MALLOC' => 1,
|
||||
'AC_FUNC_GETGROUPS' => 1,
|
||||
'AC_FUNC_GETLOADAVG' => 1,
|
||||
'AH_OUTPUT' => 1,
|
||||
'AC_FUNC_FSEEKO' => 1,
|
||||
'AM_PROG_CC_C_O' => 1,
|
||||
'AC_FUNC_MKTIME' => 1,
|
||||
'AC_CANONICAL_SYSTEM' => 1,
|
||||
'AM_CONDITIONAL' => 1,
|
||||
'AC_CONFIG_HEADERS' => 1,
|
||||
'AC_HEADER_SYS_WAIT' => 1,
|
||||
'AC_PROG_LN_S' => 1,
|
||||
'AC_FUNC_MEMCMP' => 1,
|
||||
'm4_include' => 1,
|
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|
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'AC_CHECK_FUNCS' => 1
|
||||
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|
||||
], 'Autom4te::Request' ),
|
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bless( [
|
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'3',
|
||||
1,
|
||||
[
|
||||
'/sw/share/autoconf'
|
||||
],
|
||||
@@ -262,58 +15,49 @@
|
||||
'configure.ac'
|
||||
],
|
||||
{
|
||||
'AM_PROG_F77_C_O' => 1,
|
||||
'_LT_AC_TAGCONFIG' => 1,
|
||||
'm4_pattern_forbid' => 1,
|
||||
'AM_PROG_F77_C_O' => 1,
|
||||
'AC_INIT' => 1,
|
||||
'AC_CANONICAL_TARGET' => 1,
|
||||
'm4_pattern_forbid' => 1,
|
||||
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|
||||
'AC_CONFIG_LIBOBJ_DIR' => 1,
|
||||
'AC_CANONICAL_TARGET' => 1,
|
||||
'AC_SUBST' => 1,
|
||||
'AC_CANONICAL_HOST' => 1,
|
||||
'AC_CONFIG_LIBOBJ_DIR' => 1,
|
||||
'AC_FC_SRCEXT' => 1,
|
||||
'AC_CANONICAL_HOST' => 1,
|
||||
'AC_PROG_LIBTOOL' => 1,
|
||||
'AM_INIT_AUTOMAKE' => 1,
|
||||
'AC_CONFIG_SUBDIRS' => 1,
|
||||
'AM_PATH_GUILE' => 1,
|
||||
'AM_AUTOMAKE_VERSION' => 1,
|
||||
'LT_CONFIG_LTDL_DIR' => 1,
|
||||
'AC_CONFIG_LINKS' => 1,
|
||||
'AC_REQUIRE_AUX_FILE' => 1,
|
||||
'LT_SUPPORTED_TAG' => 1,
|
||||
'AC_CONFIG_LINKS' => 1,
|
||||
'm4_sinclude' => 1,
|
||||
'LT_SUPPORTED_TAG' => 1,
|
||||
'AM_MAINTAINER_MODE' => 1,
|
||||
'AM_NLS' => 1,
|
||||
'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
|
||||
'_m4_warn' => 1,
|
||||
'AM_MAKEFILE_INCLUDE' => 1,
|
||||
'AM_PROG_CXX_C_O' => 1,
|
||||
'_AM_MAKEFILE_INCLUDE' => 1,
|
||||
'_AM_COND_ENDIF' => 1,
|
||||
'AM_ENABLE_MULTILIB' => 1,
|
||||
'AM_SILENT_RULES' => 1,
|
||||
'AM_PROG_MOC' => 1,
|
||||
'AC_CONFIG_FILES' => 1,
|
||||
'LT_INIT' => 1,
|
||||
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|
||||
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|
||||
'AM_GNU_GETTEXT' => 1,
|
||||
'AM_PROG_AR' => 1,
|
||||
'AC_LIBSOURCE' => 1,
|
||||
'AC_CANONICAL_BUILD' => 1,
|
||||
'AM_PROG_FC_C_O' => 1,
|
||||
'AC_CANONICAL_BUILD' => 1,
|
||||
'AC_FC_FREEFORM' => 1,
|
||||
'AH_OUTPUT' => 1,
|
||||
'AC_CONFIG_AUX_DIR' => 1,
|
||||
'_AM_SUBST_NOTMAKE' => 1,
|
||||
'AC_CONFIG_AUX_DIR' => 1,
|
||||
'sinclude' => 1,
|
||||
'm4_pattern_allow' => 1,
|
||||
'AM_PROG_CC_C_O' => 1,
|
||||
'sinclude' => 1,
|
||||
'AM_CONDITIONAL' => 1,
|
||||
'AC_CANONICAL_SYSTEM' => 1,
|
||||
'AM_XGETTEXT_OPTION' => 1,
|
||||
'AM_CONDITIONAL' => 1,
|
||||
'AC_CONFIG_HEADERS' => 1,
|
||||
'AC_DEFINE_TRACE_LITERAL' => 1,
|
||||
'AM_POT_TOOLS' => 1,
|
||||
'm4_include' => 1,
|
||||
'_AM_COND_ELSE' => 1,
|
||||
'AC_SUBST_TRACE' => 1
|
||||
|
||||
+2454
-2480
File diff suppressed because it is too large
Load Diff
+17
-1
@@ -83,7 +83,11 @@ extern int bash_brace_completion __P((int, int));
|
||||
#endif /* BRACE_COMPLETION */
|
||||
|
||||
/* To avoid including curses.h/term.h/termcap.h and that whole mess. */
|
||||
#ifdef _MINIX
|
||||
extern int tputs __P((const char *string, int nlines, void (*outx)(int)));
|
||||
#else
|
||||
extern int tputs __P((const char *string, int nlines, int (*outx)(int)));
|
||||
#endif
|
||||
|
||||
/* Forward declarations */
|
||||
|
||||
@@ -159,7 +163,11 @@ static char *quote_word_break_chars __P((char *));
|
||||
static void set_filename_bstab __P((const char *));
|
||||
static char *bash_quote_filename __P((char *, int, char *));
|
||||
|
||||
#ifdef _MINIX
|
||||
static void putx __P((int));
|
||||
#else
|
||||
static int putx __P((int));
|
||||
#endif
|
||||
static int bash_execute_unix_command __P((int, int));
|
||||
static void init_unix_command_map __P((void));
|
||||
static int isolate_sequence __P((char *, int, int, int *));
|
||||
@@ -3871,11 +3879,19 @@ bash_quote_filename (s, rtype, qcp)
|
||||
/* Support for binding readline key sequences to Unix commands. */
|
||||
static Keymap cmd_xmap;
|
||||
|
||||
#ifdef _MINIX
|
||||
static void
|
||||
#else
|
||||
static int
|
||||
#endif
|
||||
putx(c)
|
||||
int c;
|
||||
{
|
||||
return (putc (c, rl_outstream));
|
||||
int x;
|
||||
x = putc (c, rl_outstream);
|
||||
#ifndef _MINIX
|
||||
return x;
|
||||
#endif
|
||||
}
|
||||
|
||||
static int
|
||||
|
||||
@@ -145,6 +145,8 @@ extern void set_bashopts __P((void));
|
||||
extern void parse_bashopts __P((char *));
|
||||
extern void initialize_bashopts __P((int));
|
||||
|
||||
extern void set_compatibility_opts __P((void));
|
||||
|
||||
/* Functions from type.def */
|
||||
extern int describe_command __P((char *, int));
|
||||
|
||||
|
||||
@@ -0,0 +1,175 @@
|
||||
/* common.h -- extern declarations for functions defined in common.c. */
|
||||
|
||||
/* Copyright (C) 1993-2010 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
Bash is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
Bash is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Bash. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#if !defined (__COMMON_H)
|
||||
# define __COMMON_H
|
||||
|
||||
#include "stdc.h"
|
||||
|
||||
#define ISOPTION(s, c) (s[0] == '-' && !s[2] && s[1] == c)
|
||||
|
||||
/* Flag values for parse_and_execute () */
|
||||
#define SEVAL_NONINT 0x001
|
||||
#define SEVAL_INTERACT 0x002
|
||||
#define SEVAL_NOHIST 0x004
|
||||
#define SEVAL_NOFREE 0x008
|
||||
#define SEVAL_RESETLINE 0x010
|
||||
#define SEVAL_PARSEONLY 0x020
|
||||
#define SEVAL_NOLONGJMP 0x040
|
||||
|
||||
/* Flags for describe_command, shared between type.def and command.def */
|
||||
#define CDESC_ALL 0x001 /* type -a */
|
||||
#define CDESC_SHORTDESC 0x002 /* command -V */
|
||||
#define CDESC_REUSABLE 0x004 /* command -v */
|
||||
#define CDESC_TYPE 0x008 /* type -t */
|
||||
#define CDESC_PATH_ONLY 0x010 /* type -p */
|
||||
#define CDESC_FORCE_PATH 0x020 /* type -ap or type -P */
|
||||
#define CDESC_NOFUNCS 0x040 /* type -f */
|
||||
#define CDESC_ABSPATH 0x080 /* convert to absolute path, no ./ */
|
||||
|
||||
/* Flags for get_job_by_name */
|
||||
#define JM_PREFIX 0x01 /* prefix of job name */
|
||||
#define JM_SUBSTRING 0x02 /* substring of job name */
|
||||
#define JM_EXACT 0x04 /* match job name exactly */
|
||||
#define JM_STOPPED 0x08 /* match stopped jobs only */
|
||||
#define JM_FIRSTMATCH 0x10 /* return first matching job */
|
||||
|
||||
/* Flags for remember_args and value of changed_dollar_vars */
|
||||
#define ARGS_NONE 0x0
|
||||
#define ARGS_INVOC 0x01
|
||||
#define ARGS_FUNC 0x02
|
||||
#define ARGS_SETBLTIN 0x04
|
||||
|
||||
/* Functions from common.c */
|
||||
extern void builtin_error __P((const char *, ...)) __attribute__((__format__ (printf, 1, 2)));
|
||||
extern void builtin_warning __P((const char *, ...)) __attribute__((__format__ (printf, 1, 2)));
|
||||
extern void builtin_usage __P((void));
|
||||
extern void no_args __P((WORD_LIST *));
|
||||
extern int no_options __P((WORD_LIST *));
|
||||
|
||||
/* common error message functions */
|
||||
extern void sh_needarg __P((char *));
|
||||
extern void sh_neednumarg __P((char *));
|
||||
extern void sh_notfound __P((char *));
|
||||
extern void sh_invalidopt __P((char *));
|
||||
extern void sh_invalidoptname __P((char *));
|
||||
extern void sh_invalidid __P((char *));
|
||||
extern void sh_invalidnum __P((char *));
|
||||
extern void sh_invalidsig __P((char *));
|
||||
extern void sh_erange __P((char *, char *));
|
||||
extern void sh_badpid __P((char *));
|
||||
extern void sh_badjob __P((char *));
|
||||
extern void sh_readonly __P((const char *));
|
||||
extern void sh_nojobs __P((char *));
|
||||
extern void sh_restricted __P((char *));
|
||||
extern void sh_notbuiltin __P((char *));
|
||||
extern void sh_wrerror __P((void));
|
||||
extern void sh_ttyerror __P((int));
|
||||
extern int sh_chkwrite __P((int));
|
||||
|
||||
extern char **make_builtin_argv __P((WORD_LIST *, int *));
|
||||
extern void remember_args __P((WORD_LIST *, int));
|
||||
|
||||
extern int dollar_vars_changed __P((void));
|
||||
extern void set_dollar_vars_unchanged __P((void));
|
||||
extern void set_dollar_vars_changed __P((void));
|
||||
|
||||
extern int get_numeric_arg __P((WORD_LIST *, int, intmax_t *));
|
||||
extern int get_exitstat __P((WORD_LIST *));
|
||||
extern int read_octal __P((char *));
|
||||
|
||||
/* Keeps track of the current working directory. */
|
||||
extern char *the_current_working_directory;
|
||||
extern char *get_working_directory __P((char *));
|
||||
extern void set_working_directory __P((char *));
|
||||
|
||||
#if defined (JOB_CONTROL)
|
||||
extern int get_job_by_name __P((const char *, int));
|
||||
extern int get_job_spec __P((WORD_LIST *));
|
||||
#endif
|
||||
extern int display_signal_list __P((WORD_LIST *, int));
|
||||
|
||||
/* It's OK to declare a function as returning a Function * without
|
||||
providing a definition of what a `Function' is. */
|
||||
extern struct builtin *builtin_address_internal __P((char *, int));
|
||||
extern sh_builtin_func_t *find_shell_builtin __P((char *));
|
||||
extern sh_builtin_func_t *builtin_address __P((char *));
|
||||
extern sh_builtin_func_t *find_special_builtin __P((char *));
|
||||
extern void initialize_shell_builtins __P((void));
|
||||
|
||||
/* Functions from exit.def */
|
||||
extern void bash_logout __P((void));
|
||||
|
||||
/* Functions from getopts.def */
|
||||
extern void getopts_reset __P((int));
|
||||
|
||||
/* Functions from set.def */
|
||||
extern int minus_o_option_value __P((char *));
|
||||
extern void list_minus_o_opts __P((int, int));
|
||||
extern char **get_minus_o_opts __P((void));
|
||||
extern int set_minus_o_option __P((int, char *));
|
||||
|
||||
extern void set_shellopts __P((void));
|
||||
extern void parse_shellopts __P((char *));
|
||||
extern void initialize_shell_options __P((int));
|
||||
|
||||
extern void reset_shell_options __P((void));
|
||||
|
||||
/* Functions from shopt.def */
|
||||
extern void reset_shopt_options __P((void));
|
||||
extern char **get_shopt_options __P((void));
|
||||
|
||||
extern int shopt_setopt __P((char *, int));
|
||||
extern int shopt_listopt __P((char *, int));
|
||||
|
||||
extern int set_login_shell __P((char *, int));
|
||||
|
||||
extern void set_bashopts __P((void));
|
||||
extern void parse_bashopts __P((char *));
|
||||
extern void initialize_bashopts __P((int));
|
||||
|
||||
/* Functions from type.def */
|
||||
extern int describe_command __P((char *, int));
|
||||
|
||||
/* Functions from setattr.def */
|
||||
extern int set_or_show_attributes __P((WORD_LIST *, int, int));
|
||||
extern int show_all_var_attributes __P((int, int));
|
||||
extern int show_var_attributes __P((SHELL_VAR *, int, int));
|
||||
extern int show_name_attributes __P((char *, int));
|
||||
extern void set_var_attribute __P((char *, int, int));
|
||||
|
||||
/* Functions from pushd.def */
|
||||
extern char *get_dirstack_from_string __P((char *));
|
||||
extern char *get_dirstack_element __P((intmax_t, int));
|
||||
extern void set_dirstack_element __P((intmax_t, int, char *));
|
||||
extern WORD_LIST *get_directory_stack __P((int));
|
||||
|
||||
/* Functions from evalstring.c */
|
||||
extern int parse_and_execute __P((char *, const char *, int));
|
||||
extern int evalstring __P((char *, const char *, int));
|
||||
extern void parse_and_execute_cleanup __P((void));
|
||||
extern int parse_string __P((char *, const char *, int, char **));
|
||||
|
||||
/* Functions from evalfile.c */
|
||||
extern int maybe_execute_file __P((const char *, int));
|
||||
extern int source_file __P((const char *, int));
|
||||
extern int fc_execute_file __P((const char *));
|
||||
|
||||
#endif /* !__COMMON_H */
|
||||
+3
-2
@@ -155,6 +155,8 @@ sigalrm (s)
|
||||
int s;
|
||||
{
|
||||
sigalrm_seen = 1;
|
||||
if (signal_is_trapped (SIGALRM))
|
||||
trap_handler (SIGALRM);
|
||||
if (reading) /* do the longjmp if we get SIGALRM while in read() */
|
||||
longjmp (alrmbuf, 1);
|
||||
}
|
||||
@@ -404,7 +406,7 @@ read_builtin (list)
|
||||
|
||||
if (tmsec > 0 || tmusec > 0)
|
||||
{
|
||||
code = setjmp (alrmbuf);
|
||||
code = setjmp_nosigs (alrmbuf);
|
||||
if (code)
|
||||
{
|
||||
sigalrm_seen = 0;
|
||||
@@ -416,7 +418,6 @@ read_builtin (list)
|
||||
remove_unwind_protect ();
|
||||
run_unwind_frame ("read_builtin");
|
||||
input_string[i] = '\0'; /* make sure it's terminated */
|
||||
itrace("SIGALRM seen: input_string = '%s'", input_string);
|
||||
retval = 128+SIGALRM;
|
||||
goto assign_vars;
|
||||
}
|
||||
|
||||
+42
-10
@@ -1,7 +1,7 @@
|
||||
This file is shopt.def, from which is created shopt.c.
|
||||
It implements the Bash `shopt' builtin.
|
||||
|
||||
Copyright (C) 1994-2010 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994-2012 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
@@ -136,6 +136,7 @@ static int shopt_compat31;
|
||||
static int shopt_compat32;
|
||||
static int shopt_compat40;
|
||||
static int shopt_compat41;
|
||||
static int shopt_compat42;
|
||||
|
||||
typedef int shopt_set_func_t __P((char *, int));
|
||||
|
||||
@@ -159,6 +160,7 @@ static struct {
|
||||
{ "compat32", &shopt_compat32, set_compatibility_level },
|
||||
{ "compat40", &shopt_compat40, set_compatibility_level },
|
||||
{ "compat41", &shopt_compat41, set_compatibility_level },
|
||||
{ "compat42", &shopt_compat41, set_compatibility_level },
|
||||
#if defined (READLINE)
|
||||
{ "complete_fullquote", &complete_fullquote, (shopt_set_func_t *)NULL},
|
||||
{ "direxpand", &dircomplete_expand, shopt_set_complete_direxpand },
|
||||
@@ -525,16 +527,18 @@ set_compatibility_level (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
/* Need to change logic here as we add more compatibility levels */
|
||||
int ind;
|
||||
|
||||
/* First, check option_name so we can turn off other compat options when
|
||||
one is set. */
|
||||
if (mode && option_name[6] == '3' && option_name[7] == '1')
|
||||
shopt_compat32 = shopt_compat40 = 0;
|
||||
else if (mode && option_name[6] == '3' && option_name[7] == '2')
|
||||
shopt_compat31 = shopt_compat40 = 0;
|
||||
else if (mode && option_name[6] == '4' && option_name[7] == '0')
|
||||
shopt_compat31 = shopt_compat32 = 0;
|
||||
/* If we're setting something, redo some of the work we did above in
|
||||
toggle_shopt(). Unset everything and reset the appropriate option
|
||||
based on OPTION_NAME. */
|
||||
if (mode)
|
||||
{
|
||||
shopt_compat31 = shopt_compat32 = 0;
|
||||
shopt_compat40 = shopt_compat41 = shopt_compat42 = 0;
|
||||
ind = find_shopt (option_name);
|
||||
*shopt_vars[ind].value = mode;
|
||||
}
|
||||
|
||||
/* Then set shell_compatibility_level based on what remains */
|
||||
if (shopt_compat31)
|
||||
@@ -543,11 +547,39 @@ set_compatibility_level (option_name, mode)
|
||||
shell_compatibility_level = 32;
|
||||
else if (shopt_compat40)
|
||||
shell_compatibility_level = 40;
|
||||
else if (shopt_compat41)
|
||||
shell_compatibility_level = 41;
|
||||
else if (shopt_compat42)
|
||||
shell_compatibility_level = 42;
|
||||
else
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Set and unset the various compatibility options from the value of
|
||||
shell_compatibility_level; used by sv_shcompat */
|
||||
void
|
||||
set_compatibility_opts ()
|
||||
{
|
||||
shopt_compat31 = shopt_compat32 = shopt_compat40 = shopt_compat41 = shopt_compat42 = 0;
|
||||
switch (shell_compatibility_level)
|
||||
{
|
||||
case DEFAULT_COMPAT_LEVEL:
|
||||
break;
|
||||
case 42:
|
||||
shopt_compat42 = 1; break;
|
||||
case 41:
|
||||
shopt_compat41 = 1; break;
|
||||
case 40:
|
||||
shopt_compat40 = 1; break;
|
||||
case 32:
|
||||
shopt_compat32 = 1; break;
|
||||
case 31:
|
||||
shopt_compat31 = 1; break;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined (READLINE)
|
||||
static int
|
||||
shopt_set_complete_direxpand (option_name, mode)
|
||||
|
||||
@@ -0,0 +1,783 @@
|
||||
This file is shopt.def, from which is created shopt.c.
|
||||
It implements the Bash `shopt' builtin.
|
||||
|
||||
Copyright (C) 1994-2012 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
Bash is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
Bash is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Bash. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
$PRODUCES shopt.c
|
||||
|
||||
$BUILTIN shopt
|
||||
$FUNCTION shopt_builtin
|
||||
$SHORT_DOC shopt [-pqsu] [-o] [optname ...]
|
||||
Set and unset shell options.
|
||||
|
||||
Change the setting of each shell option OPTNAME. Without any option
|
||||
arguments, list all shell options with an indication of whether or not each
|
||||
is set.
|
||||
|
||||
Options:
|
||||
-o restrict OPTNAMEs to those defined for use with `set -o'
|
||||
-p print each shell option with an indication of its status
|
||||
-q suppress output
|
||||
-s enable (set) each OPTNAME
|
||||
-u disable (unset) each OPTNAME
|
||||
|
||||
Exit Status:
|
||||
Returns success if OPTNAME is enabled; fails if an invalid option is
|
||||
given or OPTNAME is disabled.
|
||||
$END
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#if defined (HAVE_UNISTD_H)
|
||||
# ifdef _MINIX
|
||||
# include <sys/types.h>
|
||||
# endif
|
||||
# include <unistd.h>
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "version.h"
|
||||
|
||||
#include "../bashintl.h"
|
||||
|
||||
#include "../shell.h"
|
||||
#include "../flags.h"
|
||||
#include "common.h"
|
||||
#include "bashgetopt.h"
|
||||
|
||||
#if defined (READLINE)
|
||||
# include "../bashline.h"
|
||||
#endif
|
||||
|
||||
#if defined (HISTORY)
|
||||
# include "../bashhist.h"
|
||||
#endif
|
||||
|
||||
#define UNSETOPT 0
|
||||
#define SETOPT 1
|
||||
|
||||
#define OPTFMT "%-15s\t%s\n"
|
||||
|
||||
extern int allow_null_glob_expansion, fail_glob_expansion, glob_dot_filenames;
|
||||
extern int cdable_vars, mail_warning, source_uses_path;
|
||||
extern int no_exit_on_failed_exec, print_shift_error;
|
||||
extern int check_hashed_filenames, promptvars;
|
||||
extern int cdspelling, expand_aliases;
|
||||
extern int extended_quote;
|
||||
extern int check_window_size;
|
||||
extern int glob_ignore_case, match_ignore_case;
|
||||
extern int hup_on_exit;
|
||||
extern int xpg_echo;
|
||||
extern int gnu_error_format;
|
||||
extern int check_jobs_at_exit;
|
||||
extern int autocd;
|
||||
extern int glob_star;
|
||||
extern int glob_asciirange;
|
||||
extern int lastpipe_opt;
|
||||
|
||||
#if defined (EXTENDED_GLOB)
|
||||
extern int extended_glob;
|
||||
#endif
|
||||
|
||||
#if defined (READLINE)
|
||||
extern int hist_verify, history_reediting, perform_hostname_completion;
|
||||
extern int no_empty_command_completion;
|
||||
extern int force_fignore;
|
||||
extern int dircomplete_spelling, dircomplete_expand;
|
||||
extern int complete_fullquote;
|
||||
|
||||
extern int enable_hostname_completion __P((int));
|
||||
#endif
|
||||
|
||||
#if defined (PROGRAMMABLE_COMPLETION)
|
||||
extern int prog_completion_enabled;
|
||||
#endif
|
||||
|
||||
#if defined (RESTRICTED_SHELL)
|
||||
extern char *shell_name;
|
||||
#endif
|
||||
|
||||
#if defined (DEBUGGER)
|
||||
extern int debugging_mode;
|
||||
#endif
|
||||
|
||||
static void shopt_error __P((char *));
|
||||
|
||||
static int set_shellopts_after_change __P((char *, int));
|
||||
static int shopt_enable_hostname_completion __P((char *, int));
|
||||
static int set_compatibility_level __P((char *, int));
|
||||
|
||||
#if defined (RESTRICTED_SHELL)
|
||||
static int set_restricted_shell __P((char *, int));
|
||||
#endif
|
||||
|
||||
#if defined (READLINE)
|
||||
static int shopt_set_complete_direxpand __P((char *, int));
|
||||
#endif
|
||||
|
||||
static int shopt_login_shell;
|
||||
static int shopt_compat31;
|
||||
static int shopt_compat32;
|
||||
static int shopt_compat40;
|
||||
static int shopt_compat41;
|
||||
static int shopt_compat42;
|
||||
|
||||
typedef int shopt_set_func_t __P((char *, int));
|
||||
|
||||
static struct {
|
||||
char *name;
|
||||
int *value;
|
||||
shopt_set_func_t *set_func;
|
||||
} shopt_vars[] = {
|
||||
{ "autocd", &autocd, (shopt_set_func_t *)NULL },
|
||||
{ "cdable_vars", &cdable_vars, (shopt_set_func_t *)NULL },
|
||||
{ "cdspell", &cdspelling, (shopt_set_func_t *)NULL },
|
||||
{ "checkhash", &check_hashed_filenames, (shopt_set_func_t *)NULL },
|
||||
#if defined (JOB_CONTROL)
|
||||
{ "checkjobs", &check_jobs_at_exit, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "checkwinsize", &check_window_size, (shopt_set_func_t *)NULL },
|
||||
#if defined (HISTORY)
|
||||
{ "cmdhist", &command_oriented_history, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "compat31", &shopt_compat31, set_compatibility_level },
|
||||
{ "compat32", &shopt_compat32, set_compatibility_level },
|
||||
{ "compat40", &shopt_compat40, set_compatibility_level },
|
||||
{ "compat41", &shopt_compat41, set_compatibility_level },
|
||||
{ "compat42", &shopt_compat41, set_compatibility_level },
|
||||
#if defined (READLINE)
|
||||
{ "complete_fullquote", &complete_fullquote, (shopt_set_func_t *)NULL},
|
||||
{ "direxpand", &dircomplete_expand, shopt_set_complete_direxpand },
|
||||
{ "dirspell", &dircomplete_spelling, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "dotglob", &glob_dot_filenames, (shopt_set_func_t *)NULL },
|
||||
{ "execfail", &no_exit_on_failed_exec, (shopt_set_func_t *)NULL },
|
||||
{ "expand_aliases", &expand_aliases, (shopt_set_func_t *)NULL },
|
||||
#if defined (DEBUGGER)
|
||||
{ "extdebug", &debugging_mode, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
#if defined (EXTENDED_GLOB)
|
||||
{ "extglob", &extended_glob, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "extquote", &extended_quote, (shopt_set_func_t *)NULL },
|
||||
{ "failglob", &fail_glob_expansion, (shopt_set_func_t *)NULL },
|
||||
#if defined (READLINE)
|
||||
{ "force_fignore", &force_fignore, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "globstar", &glob_star, (shopt_set_func_t *)NULL },
|
||||
{ "globasciiranges", &glob_asciirange, (shopt_set_func_t *)NULL },
|
||||
{ "gnu_errfmt", &gnu_error_format, (shopt_set_func_t *)NULL },
|
||||
#if defined (HISTORY)
|
||||
{ "histappend", &force_append_history, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
#if defined (READLINE)
|
||||
{ "histreedit", &history_reediting, (shopt_set_func_t *)NULL },
|
||||
{ "histverify", &hist_verify, (shopt_set_func_t *)NULL },
|
||||
{ "hostcomplete", &perform_hostname_completion, shopt_enable_hostname_completion },
|
||||
#endif
|
||||
{ "huponexit", &hup_on_exit, (shopt_set_func_t *)NULL },
|
||||
{ "interactive_comments", &interactive_comments, set_shellopts_after_change },
|
||||
{ "lastpipe", &lastpipe_opt, (shopt_set_func_t *)NULL },
|
||||
#if defined (HISTORY)
|
||||
{ "lithist", &literal_history, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "login_shell", &shopt_login_shell, set_login_shell },
|
||||
{ "mailwarn", &mail_warning, (shopt_set_func_t *)NULL },
|
||||
#if defined (READLINE)
|
||||
{ "no_empty_cmd_completion", &no_empty_command_completion, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "nocaseglob", &glob_ignore_case, (shopt_set_func_t *)NULL },
|
||||
{ "nocasematch", &match_ignore_case, (shopt_set_func_t *)NULL },
|
||||
{ "nullglob", &allow_null_glob_expansion, (shopt_set_func_t *)NULL },
|
||||
#if defined (PROGRAMMABLE_COMPLETION)
|
||||
{ "progcomp", &prog_completion_enabled, (shopt_set_func_t *)NULL },
|
||||
#endif
|
||||
{ "promptvars", &promptvars, (shopt_set_func_t *)NULL },
|
||||
#if defined (RESTRICTED_SHELL)
|
||||
{ "restricted_shell", &restricted_shell, set_restricted_shell },
|
||||
#endif
|
||||
{ "shift_verbose", &print_shift_error, (shopt_set_func_t *)NULL },
|
||||
{ "sourcepath", &source_uses_path, (shopt_set_func_t *)NULL },
|
||||
{ "xpg_echo", &xpg_echo, (shopt_set_func_t *)NULL },
|
||||
{ (char *)0, (int *)0, (shopt_set_func_t *)NULL }
|
||||
};
|
||||
|
||||
#define N_SHOPT_OPTIONS (sizeof (shopt_vars) / sizeof (shopt_vars[0]))
|
||||
|
||||
#define GET_SHOPT_OPTION_VALUE(i) (*shopt_vars[i].value)
|
||||
|
||||
static const char * const on = "on";
|
||||
static const char * const off = "off";
|
||||
|
||||
static int find_shopt __P((char *));
|
||||
static int toggle_shopts __P((int, WORD_LIST *, int));
|
||||
static void print_shopt __P((char *, int, int));
|
||||
static int list_shopts __P((WORD_LIST *, int));
|
||||
static int list_some_shopts __P((int, int));
|
||||
static int list_shopt_o_options __P((WORD_LIST *, int));
|
||||
static int list_some_o_options __P((int, int));
|
||||
static int set_shopt_o_options __P((int, WORD_LIST *, int));
|
||||
|
||||
#define SFLAG 0x01
|
||||
#define UFLAG 0x02
|
||||
#define QFLAG 0x04
|
||||
#define OFLAG 0x08
|
||||
#define PFLAG 0x10
|
||||
|
||||
int
|
||||
shopt_builtin (list)
|
||||
WORD_LIST *list;
|
||||
{
|
||||
int opt, flags, rval;
|
||||
|
||||
flags = 0;
|
||||
reset_internal_getopt ();
|
||||
while ((opt = internal_getopt (list, "psuoq")) != -1)
|
||||
{
|
||||
switch (opt)
|
||||
{
|
||||
case 's':
|
||||
flags |= SFLAG;
|
||||
break;
|
||||
case 'u':
|
||||
flags |= UFLAG;
|
||||
break;
|
||||
case 'q':
|
||||
flags |= QFLAG;
|
||||
break;
|
||||
case 'o':
|
||||
flags |= OFLAG;
|
||||
break;
|
||||
case 'p':
|
||||
flags |= PFLAG;
|
||||
break;
|
||||
default:
|
||||
builtin_usage ();
|
||||
return (EX_USAGE);
|
||||
}
|
||||
}
|
||||
list = loptend;
|
||||
|
||||
if ((flags & (SFLAG|UFLAG)) == (SFLAG|UFLAG))
|
||||
{
|
||||
builtin_error (_("cannot set and unset shell options simultaneously"));
|
||||
return (EXECUTION_FAILURE);
|
||||
}
|
||||
|
||||
rval = EXECUTION_SUCCESS;
|
||||
if ((flags & OFLAG) && ((flags & (SFLAG|UFLAG)) == 0)) /* shopt -o */
|
||||
rval = list_shopt_o_options (list, flags);
|
||||
else if (list && (flags & OFLAG)) /* shopt -so args */
|
||||
rval = set_shopt_o_options ((flags & SFLAG) ? FLAG_ON : FLAG_OFF, list, flags & QFLAG);
|
||||
else if (flags & OFLAG) /* shopt -so */
|
||||
rval = list_some_o_options ((flags & SFLAG) ? 1 : 0, flags);
|
||||
else if (list && (flags & (SFLAG|UFLAG))) /* shopt -su args */
|
||||
rval = toggle_shopts ((flags & SFLAG) ? SETOPT : UNSETOPT, list, flags & QFLAG);
|
||||
else if ((flags & (SFLAG|UFLAG)) == 0) /* shopt [args] */
|
||||
rval = list_shopts (list, flags);
|
||||
else /* shopt -su */
|
||||
rval = list_some_shopts ((flags & SFLAG) ? SETOPT : UNSETOPT, flags);
|
||||
return (rval);
|
||||
}
|
||||
|
||||
/* Reset the options managed by `shopt' to the values they would have at
|
||||
shell startup. */
|
||||
void
|
||||
reset_shopt_options ()
|
||||
{
|
||||
allow_null_glob_expansion = glob_dot_filenames = 0;
|
||||
cdable_vars = mail_warning = 0;
|
||||
no_exit_on_failed_exec = print_shift_error = 0;
|
||||
check_hashed_filenames = cdspelling = expand_aliases = check_window_size = 0;
|
||||
|
||||
source_uses_path = promptvars = 1;
|
||||
|
||||
#if defined (EXTENDED_GLOB)
|
||||
extended_glob = 0;
|
||||
#endif
|
||||
|
||||
#if defined (HISTORY)
|
||||
literal_history = force_append_history = 0;
|
||||
command_oriented_history = 1;
|
||||
#endif
|
||||
|
||||
#if defined (READLINE)
|
||||
hist_verify = history_reediting = 0;
|
||||
perform_hostname_completion = 1;
|
||||
#endif
|
||||
|
||||
shopt_login_shell = login_shell;
|
||||
}
|
||||
|
||||
static int
|
||||
find_shopt (name)
|
||||
char *name;
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; shopt_vars[i].name; i++)
|
||||
if (STREQ (name, shopt_vars[i].name))
|
||||
return i;
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void
|
||||
shopt_error (s)
|
||||
char *s;
|
||||
{
|
||||
builtin_error (_("%s: invalid shell option name"), s);
|
||||
}
|
||||
|
||||
static int
|
||||
toggle_shopts (mode, list, quiet)
|
||||
int mode;
|
||||
WORD_LIST *list;
|
||||
int quiet;
|
||||
{
|
||||
WORD_LIST *l;
|
||||
int ind, rval;
|
||||
|
||||
for (l = list, rval = EXECUTION_SUCCESS; l; l = l->next)
|
||||
{
|
||||
ind = find_shopt (l->word->word);
|
||||
if (ind < 0)
|
||||
{
|
||||
shopt_error (l->word->word);
|
||||
rval = EXECUTION_FAILURE;
|
||||
}
|
||||
else
|
||||
{
|
||||
*shopt_vars[ind].value = mode; /* 1 for set, 0 for unset */
|
||||
if (shopt_vars[ind].set_func)
|
||||
(*shopt_vars[ind].set_func) (shopt_vars[ind].name, mode);
|
||||
}
|
||||
}
|
||||
|
||||
set_bashopts ();
|
||||
return (rval);
|
||||
}
|
||||
|
||||
static void
|
||||
print_shopt (name, val, flags)
|
||||
char *name;
|
||||
int val, flags;
|
||||
{
|
||||
if (flags & PFLAG)
|
||||
printf ("shopt %s %s\n", val ? "-s" : "-u", name);
|
||||
else
|
||||
printf (OPTFMT, name, val ? on : off);
|
||||
}
|
||||
|
||||
/* List the values of all or any of the `shopt' options. Returns 0 if
|
||||
all were listed or all variables queried were on; 1 otherwise. */
|
||||
static int
|
||||
list_shopts (list, flags)
|
||||
WORD_LIST *list;
|
||||
int flags;
|
||||
{
|
||||
WORD_LIST *l;
|
||||
int i, val, rval;
|
||||
|
||||
if (list == 0)
|
||||
{
|
||||
for (i = 0; shopt_vars[i].name; i++)
|
||||
{
|
||||
val = *shopt_vars[i].value;
|
||||
if ((flags & QFLAG) == 0)
|
||||
print_shopt (shopt_vars[i].name, val, flags);
|
||||
}
|
||||
return (sh_chkwrite (EXECUTION_SUCCESS));
|
||||
}
|
||||
|
||||
for (l = list, rval = EXECUTION_SUCCESS; l; l = l->next)
|
||||
{
|
||||
i = find_shopt (l->word->word);
|
||||
if (i < 0)
|
||||
{
|
||||
shopt_error (l->word->word);
|
||||
rval = EXECUTION_FAILURE;
|
||||
continue;
|
||||
}
|
||||
val = *shopt_vars[i].value;
|
||||
if (val == 0)
|
||||
rval = EXECUTION_FAILURE;
|
||||
if ((flags & QFLAG) == 0)
|
||||
print_shopt (l->word->word, val, flags);
|
||||
}
|
||||
|
||||
return (sh_chkwrite (rval));
|
||||
}
|
||||
|
||||
static int
|
||||
list_some_shopts (mode, flags)
|
||||
int mode, flags;
|
||||
{
|
||||
int val, i;
|
||||
|
||||
for (i = 0; shopt_vars[i].name; i++)
|
||||
{
|
||||
val = *shopt_vars[i].value;
|
||||
if (((flags & QFLAG) == 0) && mode == val)
|
||||
print_shopt (shopt_vars[i].name, val, flags);
|
||||
}
|
||||
return (sh_chkwrite (EXECUTION_SUCCESS));
|
||||
}
|
||||
|
||||
static int
|
||||
list_shopt_o_options (list, flags)
|
||||
WORD_LIST *list;
|
||||
int flags;
|
||||
{
|
||||
WORD_LIST *l;
|
||||
int val, rval;
|
||||
|
||||
if (list == 0)
|
||||
{
|
||||
if ((flags & QFLAG) == 0)
|
||||
list_minus_o_opts (-1, (flags & PFLAG));
|
||||
return (sh_chkwrite (EXECUTION_SUCCESS));
|
||||
}
|
||||
|
||||
for (l = list, rval = EXECUTION_SUCCESS; l; l = l->next)
|
||||
{
|
||||
val = minus_o_option_value (l->word->word);
|
||||
if (val == -1)
|
||||
{
|
||||
sh_invalidoptname (l->word->word);
|
||||
rval = EXECUTION_FAILURE;
|
||||
continue;
|
||||
}
|
||||
if (val == 0)
|
||||
rval = EXECUTION_FAILURE;
|
||||
if ((flags & QFLAG) == 0)
|
||||
{
|
||||
if (flags & PFLAG)
|
||||
printf ("set %co %s\n", val ? '-' : '+', l->word->word);
|
||||
else
|
||||
printf (OPTFMT, l->word->word, val ? on : off);
|
||||
}
|
||||
}
|
||||
return (sh_chkwrite (rval));
|
||||
}
|
||||
|
||||
static int
|
||||
list_some_o_options (mode, flags)
|
||||
int mode, flags;
|
||||
{
|
||||
if ((flags & QFLAG) == 0)
|
||||
list_minus_o_opts (mode, (flags & PFLAG));
|
||||
return (sh_chkwrite (EXECUTION_SUCCESS));
|
||||
}
|
||||
|
||||
static int
|
||||
set_shopt_o_options (mode, list, quiet)
|
||||
int mode;
|
||||
WORD_LIST *list;
|
||||
int quiet;
|
||||
{
|
||||
WORD_LIST *l;
|
||||
int rval;
|
||||
|
||||
for (l = list, rval = EXECUTION_SUCCESS; l; l = l->next)
|
||||
{
|
||||
if (set_minus_o_option (mode, l->word->word) == EXECUTION_FAILURE)
|
||||
rval = EXECUTION_FAILURE;
|
||||
}
|
||||
set_shellopts ();
|
||||
return rval;
|
||||
}
|
||||
|
||||
/* If we set or unset interactive_comments with shopt, make sure the
|
||||
change is reflected in $SHELLOPTS. */
|
||||
static int
|
||||
set_shellopts_after_change (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
set_shellopts ();
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
shopt_enable_hostname_completion (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
return (enable_hostname_completion (mode));
|
||||
}
|
||||
|
||||
static int
|
||||
set_compatibility_level (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
/* Need to change logic here as we add more compatibility levels or do
|
||||
this with a shell variable. */
|
||||
|
||||
/* First, check option_name so we can turn off other compat options when
|
||||
one is set. */
|
||||
if (mode && option_name[6] == '3')
|
||||
shopt_compat40 = shopt_compat41 = shopt_compat42 = 0;
|
||||
else if (mode && option_name[6] == '4')
|
||||
shopt_compat31 = shopt_compat32 = 0;
|
||||
|
||||
if (mode && option_name[6] == '3' && option_name[7] == '1')
|
||||
shopt_compat32 = 0;
|
||||
else if (mode && option_name[6] == '3' && option_name[7] == '2')
|
||||
shopt_compat31 = 0;
|
||||
else if (mode && option_name[6] == '4' && option_name[7] == '0')
|
||||
shopt_compat41 = shopt_compat42 = 0;
|
||||
else if (mode && option_name[6] == '4' && option_name[7] == '1')
|
||||
shopt_compat40 = shopt_compat42 = 0;
|
||||
else if (mode && option_name[6] == '4' && option_name[7] == '2')
|
||||
shopt_compat40 = shopt_compat41 = 0;
|
||||
|
||||
/* Then set shell_compatibility_level based on what remains */
|
||||
if (shopt_compat31)
|
||||
shell_compatibility_level = 31;
|
||||
else if (shopt_compat32)
|
||||
shell_compatibility_level = 32;
|
||||
else if (shopt_compat40)
|
||||
shell_compatibility_level = 40;
|
||||
else if (shopt_compat41)
|
||||
shell_compatibility_level = 41;
|
||||
else if (shopt_compat42)
|
||||
shell_compatibility_level = 42;
|
||||
else
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Set and unset the various compatibility options from the value of
|
||||
shell_compatibility_level; used by sv_shcompat */
|
||||
void
|
||||
set_compatibility_opts ()
|
||||
{
|
||||
shopt_compat31 = shopt_compat32 = shopt_compat40 = shopt_compat41 = shopt_compat42 = 0;
|
||||
switch (shell_compatibility_level)
|
||||
{
|
||||
case DEFAULT_COMPAT_LEVEL:
|
||||
break;
|
||||
case 42:
|
||||
shopt_compat42 = 1; break;
|
||||
case 41:
|
||||
shopt_compat41 = 1; break;
|
||||
case 40:
|
||||
shopt_compat40 = 1; break;
|
||||
case 32:
|
||||
shopt_compat32 = 1; break;
|
||||
case 31:
|
||||
shopt_compat31 = 1; break;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined (READLINE)
|
||||
static int
|
||||
shopt_set_complete_direxpand (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
set_directory_hook ();
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined (RESTRICTED_SHELL)
|
||||
/* Don't allow the value of restricted_shell to be modified. */
|
||||
|
||||
static int
|
||||
set_restricted_shell (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
static int save_restricted = -1;
|
||||
|
||||
if (save_restricted == -1)
|
||||
save_restricted = shell_is_restricted (shell_name);
|
||||
|
||||
restricted_shell = save_restricted;
|
||||
return (0);
|
||||
}
|
||||
#endif /* RESTRICTED_SHELL */
|
||||
|
||||
/* Not static so shell.c can call it to initialize shopt_login_shell */
|
||||
int
|
||||
set_login_shell (option_name, mode)
|
||||
char *option_name;
|
||||
int mode;
|
||||
{
|
||||
shopt_login_shell = login_shell != 0;
|
||||
return (0);
|
||||
}
|
||||
|
||||
char **
|
||||
get_shopt_options ()
|
||||
{
|
||||
char **ret;
|
||||
int n, i;
|
||||
|
||||
n = sizeof (shopt_vars) / sizeof (shopt_vars[0]);
|
||||
ret = strvec_create (n + 1);
|
||||
for (i = 0; shopt_vars[i].name; i++)
|
||||
ret[i] = savestring (shopt_vars[i].name);
|
||||
ret[i] = (char *)NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* External interface for other parts of the shell. NAME is a string option;
|
||||
* MODE is 0 if we want to unset an option; 1 if we want to set an option.
|
||||
* REUSABLE is 1 if we want to print output in a form that may be reused.
|
||||
*/
|
||||
int
|
||||
shopt_setopt (name, mode)
|
||||
char *name;
|
||||
int mode;
|
||||
{
|
||||
WORD_LIST *wl;
|
||||
int r;
|
||||
|
||||
wl = add_string_to_list (name, (WORD_LIST *)NULL);
|
||||
r = toggle_shopts (mode, wl, 0);
|
||||
dispose_words (wl);
|
||||
return r;
|
||||
}
|
||||
|
||||
int
|
||||
shopt_listopt (name, reusable)
|
||||
char *name;
|
||||
int reusable;
|
||||
{
|
||||
int i;
|
||||
|
||||
if (name == 0)
|
||||
return (list_shopts ((WORD_LIST *)NULL, reusable ? PFLAG : 0));
|
||||
|
||||
i = find_shopt (name);
|
||||
if (i < 0)
|
||||
{
|
||||
shopt_error (name);
|
||||
return (EXECUTION_FAILURE);
|
||||
}
|
||||
|
||||
print_shopt (name, *shopt_vars[i].value, reusable ? PFLAG : 0);
|
||||
return (sh_chkwrite (EXECUTION_SUCCESS));
|
||||
}
|
||||
|
||||
void
|
||||
set_bashopts ()
|
||||
{
|
||||
char *value;
|
||||
char tflag[N_SHOPT_OPTIONS];
|
||||
int vsize, i, vptr, *ip, exported;
|
||||
SHELL_VAR *v;
|
||||
|
||||
for (vsize = i = 0; shopt_vars[i].name; i++)
|
||||
{
|
||||
tflag[i] = 0;
|
||||
if (GET_SHOPT_OPTION_VALUE (i))
|
||||
{
|
||||
vsize += strlen (shopt_vars[i].name) + 1;
|
||||
tflag[i] = 1;
|
||||
}
|
||||
}
|
||||
|
||||
value = (char *)xmalloc (vsize + 1);
|
||||
|
||||
for (i = vptr = 0; shopt_vars[i].name; i++)
|
||||
{
|
||||
if (tflag[i])
|
||||
{
|
||||
strcpy (value + vptr, shopt_vars[i].name);
|
||||
vptr += strlen (shopt_vars[i].name);
|
||||
value[vptr++] = ':';
|
||||
}
|
||||
}
|
||||
|
||||
if (vptr)
|
||||
vptr--; /* cut off trailing colon */
|
||||
value[vptr] = '\0';
|
||||
|
||||
v = find_variable ("BASHOPTS");
|
||||
|
||||
/* Turn off the read-only attribute so we can bind the new value, and
|
||||
note whether or not the variable was exported. */
|
||||
if (v)
|
||||
{
|
||||
VUNSETATTR (v, att_readonly);
|
||||
exported = exported_p (v);
|
||||
}
|
||||
else
|
||||
exported = 0;
|
||||
|
||||
v = bind_variable ("BASHOPTS", value, 0);
|
||||
|
||||
/* Turn the read-only attribute back on, and turn off the export attribute
|
||||
if it was set implicitly by mark_modified_vars and SHELLOPTS was not
|
||||
exported before we bound the new value. */
|
||||
VSETATTR (v, att_readonly);
|
||||
if (mark_modified_vars && exported == 0 && exported_p (v))
|
||||
VUNSETATTR (v, att_exported);
|
||||
|
||||
free (value);
|
||||
}
|
||||
|
||||
void
|
||||
parse_bashopts (value)
|
||||
char *value;
|
||||
{
|
||||
char *vname;
|
||||
int vptr, ind;
|
||||
|
||||
vptr = 0;
|
||||
while (vname = extract_colon_unit (value, &vptr))
|
||||
{
|
||||
ind = find_shopt (vname);
|
||||
if (ind >= 0)
|
||||
*shopt_vars[ind].value = 1;
|
||||
free (vname);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
initialize_bashopts (no_bashopts)
|
||||
int no_bashopts;
|
||||
{
|
||||
char *temp;
|
||||
SHELL_VAR *var;
|
||||
|
||||
if (no_bashopts == 0)
|
||||
{
|
||||
var = find_variable ("BASHOPTS");
|
||||
/* set up any shell options we may have inherited. */
|
||||
if (var && imported_p (var))
|
||||
{
|
||||
temp = (array_p (var) || assoc_p (var)) ? (char *)NULL : savestring (value_cell (var));
|
||||
if (temp)
|
||||
{
|
||||
parse_bashopts (temp);
|
||||
free (temp);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Set up the $BASHOPTS variable. */
|
||||
set_bashopts ();
|
||||
}
|
||||
+5
-5
@@ -1,5 +1,5 @@
|
||||
dnl
|
||||
dnl Configure script for bash-4.2
|
||||
dnl Configure script for bash-4.3
|
||||
dnl
|
||||
dnl report bugs to chet@po.cwru.edu
|
||||
dnl
|
||||
@@ -21,15 +21,15 @@ dnl Process this file with autoconf to produce a configure script.
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
AC_REVISION([for Bash 4.2, version 4.052])dnl
|
||||
AC_REVISION([for Bash 4.3, version 4.053])dnl
|
||||
|
||||
define(bashvers, 4.2)
|
||||
define(relstatus, maint)
|
||||
define(bashvers, 4.3)
|
||||
define(relstatus, devel)
|
||||
|
||||
AC_INIT([bash], bashvers-relstatus, [bug-bash@gnu.org])
|
||||
|
||||
dnl make sure we are using a recent autoconf version
|
||||
AC_PREREQ(2.50)
|
||||
AC_PREREQ(2.61)
|
||||
|
||||
AC_CONFIG_SRCDIR(shell.h)
|
||||
dnl where to find install.sh, config.sub, and config.guess
|
||||
|
||||
+1194
File diff suppressed because it is too large
Load Diff
+25
-2
@@ -5,12 +5,12 @@
|
||||
.\" Case Western Reserve University
|
||||
.\" chet@po.cwru.edu
|
||||
.\"
|
||||
.\" Last Change: Sat Dec 15 17:50:05 EST 2012
|
||||
.\" Last Change: Sat Dec 29 11:19:16 EST 2012
|
||||
.\"
|
||||
.\" bash_builtins, strip all but Built-Ins section
|
||||
.if \n(zZ=1 .ig zZ
|
||||
.if \n(zY=1 .ig zY
|
||||
.TH BASH 1 "2012 December 15" "GNU Bash 4.2"
|
||||
.TH BASH 1 "2012 December 29" "GNU Bash 4.2"
|
||||
.\"
|
||||
.\" There's some problem with having a `@'
|
||||
.\" in a tagged paragraph with the BSD man macros.
|
||||
@@ -1864,6 +1864,23 @@ below.
|
||||
.PP
|
||||
.PD 0
|
||||
.TP
|
||||
.B BASH_COMPAT
|
||||
The value is used to set the shell's compatibility level.
|
||||
See the description of the \fBshopt\fB builtin below under
|
||||
\fBSHELL BUILTIN COMMANDS\fP for a description of the various compatibility
|
||||
levels and their effects.
|
||||
The value may be a decimal number (e.g., 4.2) or an integer (e.g., 42)
|
||||
corresponding to the desired compatibility level.
|
||||
If \fBBASH_COMPAT\fP is unset or set to the empty string, the compatibility
|
||||
level is set to the default for the current version.
|
||||
If \fBBASH_COMPAT\fP is set to a value that is not one of the valid
|
||||
compatibility levels, the shell prints an error message and sets the
|
||||
compatibility level to the default for the current version.
|
||||
The valid compatibility levels correspond to the compatibility options
|
||||
accepted by the \fBshopt\fP builtin described below (for example,
|
||||
\fBcompat42\fP means that 4.2 and 42 are valid values).
|
||||
The current version is also a valid value.
|
||||
.TP
|
||||
.B BASH_ENV
|
||||
If this parameter is set when \fBbash\fP is executing a shell script,
|
||||
its value is interpreted as a filename containing commands to
|
||||
@@ -9218,6 +9235,12 @@ parameter expansion as a special character. The single quotes must match
|
||||
quoted. This is the behavior of posix mode through version 4.1.
|
||||
The default bash behavior remains as in previous versions.
|
||||
.TP 8
|
||||
.B compat42
|
||||
If set,
|
||||
.B bash
|
||||
does not process the replacement string in the pattern substitution word
|
||||
expansion using quote removal.
|
||||
.TP 8
|
||||
.B complete_fullquote
|
||||
If set,
|
||||
.B bash
|
||||
|
||||
+8
-2
@@ -5,12 +5,12 @@
|
||||
.\" Case Western Reserve University
|
||||
.\" chet@po.cwru.edu
|
||||
.\"
|
||||
.\" Last Change: Fri Dec 14 10:13:24 EST 2012
|
||||
.\" Last Change: Sat Dec 29 11:19:16 EST 2012
|
||||
.\"
|
||||
.\" bash_builtins, strip all but Built-Ins section
|
||||
.if \n(zZ=1 .ig zZ
|
||||
.if \n(zY=1 .ig zY
|
||||
.TH BASH 1 "2012 December 14" "GNU Bash 4.2"
|
||||
.TH BASH 1 "2012 December 29" "GNU Bash 4.2"
|
||||
.\"
|
||||
.\" There's some problem with having a `@'
|
||||
.\" in a tagged paragraph with the BSD man macros.
|
||||
@@ -9218,6 +9218,12 @@ parameter expansion as a special character. The single quotes must match
|
||||
quoted. This is the behavior of posix mode through version 4.1.
|
||||
The default bash behavior remains as in previous versions.
|
||||
.TP 8
|
||||
.B compat42
|
||||
If set,
|
||||
.B bash
|
||||
does not process the replacement string in the pattern substitution word
|
||||
expansion using quote removal.
|
||||
.TP 8
|
||||
.B complete_fullquote
|
||||
If set,
|
||||
.B bash
|
||||
|
||||
+24
-2
@@ -4894,6 +4894,11 @@ parameter expansion as a special character. The single quotes must match
|
||||
quoted. This is the behavior of @sc{posix} mode through version 4.1.
|
||||
The default Bash behavior remains as in previous versions.
|
||||
|
||||
@item compat42
|
||||
If set, Bash
|
||||
does not process the replacement string in the pattern substitution word
|
||||
expansion using quote removal.
|
||||
|
||||
@item complete_fullquote
|
||||
If set, Bash
|
||||
quotes all shell metacharacters in filenames and directory names when
|
||||
@@ -5298,6 +5303,22 @@ The command currently being executed or about to be executed, unless the
|
||||
shell is executing a command as the result of a trap,
|
||||
in which case it is the command executing at the time of the trap.
|
||||
|
||||
@item BASH_COMPAT
|
||||
The value is used to set the shell's compatibility level.
|
||||
@xref{The Shopt Builtin} for a description of the various compatibility
|
||||
levels and their effects.
|
||||
The value may be a decimal number (e.g., 4.2) or an integer (e.g., 42)
|
||||
corresponding to the desired compatibility level.
|
||||
If @code{BASH_COMPAT} is unset or set to the empty string, the compatibility
|
||||
level is set to the default for the current version.
|
||||
If @code{BASH_COMPAT} is set to a value that is not one of the valid
|
||||
compatibility levels, the shell prints an error message and sets the
|
||||
compatibility level to the default for the current version.
|
||||
The valid compatibility levels correspond to the compatibility options
|
||||
accepted by the @code{shopt} builtin described above (for example,
|
||||
@var{compat42} means that 4.2 and 42 are valid values).
|
||||
The current version is also a valid value.
|
||||
|
||||
@item BASH_ENV
|
||||
If this variable is set when Bash is invoked to execute a shell
|
||||
script, its value is expanded and used as the name of a startup file
|
||||
@@ -7070,7 +7091,7 @@ name, rather than on all assignment statements on the line.
|
||||
@item
|
||||
The @code{command} builtin does not prevent builtins that take assignment
|
||||
statements as arguments from expanding them as assignment statements;
|
||||
when not in POSIX mode, assignment builtins lose their assignment
|
||||
when not in @sc{posix} mode, assignment builtins lose their assignment
|
||||
statement expansion properties when preceded by @code{command}.
|
||||
|
||||
@item
|
||||
@@ -7912,7 +7933,8 @@ The @samp{minimal-config} option can be used to disable all of
|
||||
the following options, but it is processed first, so individual
|
||||
options may be enabled using @samp{enable-@var{feature}}.
|
||||
|
||||
All of the following options except for @samp{disabled-builtins} and
|
||||
All of the following options except for @samp{disabled-builtins},
|
||||
@samp{directpand-default}, and
|
||||
@samp{xpg-echo-default} are
|
||||
enabled by default, unless the operating system does not provide the
|
||||
necessary support.
|
||||
|
||||
+26
-2
@@ -4274,12 +4274,15 @@ not echoed.
|
||||
|
||||
@item -t @var{timeout}
|
||||
Cause @code{read} to time out and return failure if a complete line of
|
||||
input is not read within @var{timeout} seconds.
|
||||
input (or a specified number of characters)
|
||||
is not read within @var{timeout} seconds.
|
||||
@var{timeout} may be a decimal number with a fractional portion following
|
||||
the decimal point.
|
||||
This option is only effective if @code{read} is reading input from a
|
||||
terminal, pipe, or other special file; it has no effect when reading
|
||||
from regular files.
|
||||
If @code{read} times out, @code{read} saves any partial input read into
|
||||
the specified variable @var{name}.
|
||||
If @var{timeout} is 0, @code{read} returns immediately, without trying to
|
||||
read and data. The exit status is 0 if input is available on
|
||||
the specified file descriptor, non-zero otherwise.
|
||||
@@ -4891,6 +4894,11 @@ parameter expansion as a special character. The single quotes must match
|
||||
quoted. This is the behavior of @sc{posix} mode through version 4.1.
|
||||
The default Bash behavior remains as in previous versions.
|
||||
|
||||
@item compat42
|
||||
If set, Bash
|
||||
does not process the replacement string in the pattern substitution word
|
||||
expansion using quote removal.
|
||||
|
||||
@item complete_fullquote
|
||||
If set, Bash
|
||||
quotes all shell metacharacters in filenames and directory names when
|
||||
@@ -5295,6 +5303,22 @@ The command currently being executed or about to be executed, unless the
|
||||
shell is executing a command as the result of a trap,
|
||||
in which case it is the command executing at the time of the trap.
|
||||
|
||||
@item BASH_COMPAT
|
||||
The value is used to set the shell's compatibility level.
|
||||
@xref{The Shopt Builtin} for a description of the various compatibility
|
||||
levels and their effects.
|
||||
The value may be a decimal number (e.g., 4.2) or an integer (e.g., 42)
|
||||
corresponding to the desired compatibility level.
|
||||
If @code{BASH_COMPAT} is unset or set to the empty string, the compatibility
|
||||
level is set to the default for the current version.
|
||||
If @code{BASH_COMPAT} is set to a value that is not one of the valid
|
||||
compatibility levels, the shell prints an error message and sets the
|
||||
compatibility level to the default for the current version.
|
||||
The valid compatibility levels correspond to the compatibility options
|
||||
accepted by the @code{shopt} builtin described above (for example,
|
||||
@var{compat42} means that 4.2 and 42 are valid values).
|
||||
The current version is also a valid value.
|
||||
|
||||
@item BASH_ENV
|
||||
If this variable is set when Bash is invoked to execute a shell
|
||||
script, its value is expanded and used as the name of a startup file
|
||||
@@ -7067,7 +7091,7 @@ name, rather than on all assignment statements on the line.
|
||||
@item
|
||||
The @code{command} builtin does not prevent builtins that take assignment
|
||||
statements as arguments from expanding them as assignment statements;
|
||||
when not in POSIX mode, assignment builtins lose their assignment
|
||||
when not in @sc{posix} mode, assignment builtins lose their assignment
|
||||
statement expansion properties when preceded by @code{command}.
|
||||
|
||||
@item
|
||||
|
||||
+2
-2
@@ -2,9 +2,9 @@
|
||||
Copyright (C) 1988-2012 Free Software Foundation, Inc.
|
||||
@end ignore
|
||||
|
||||
@set LASTCHANGE Sat Dec 15 17:49:50 EST 2012
|
||||
@set LASTCHANGE Sat Dec 29 11:19:39 EST 2012
|
||||
|
||||
@set EDITION 4.2
|
||||
@set VERSION 4.2
|
||||
@set UPDATED 15 December 2012
|
||||
@set UPDATED 29 December 2012
|
||||
@set UPDATED-MONTH December 2012
|
||||
|
||||
+2
-2
@@ -2,9 +2,9 @@
|
||||
Copyright (C) 1988-2012 Free Software Foundation, Inc.
|
||||
@end ignore
|
||||
|
||||
@set LASTCHANGE Fri Dec 14 10:13:02 EST 2012
|
||||
@set LASTCHANGE Sat Dec 15 17:49:50 EST 2012
|
||||
|
||||
@set EDITION 4.2
|
||||
@set VERSION 4.2
|
||||
@set UPDATED 14 December 2012
|
||||
@set UPDATED 15 December 2012
|
||||
@set UPDATED-MONTH December 2012
|
||||
|
||||
@@ -208,7 +208,7 @@ int rl_visible_stats = 0;
|
||||
#if defined (COLOR_SUPPORT)
|
||||
/* Non-zero means to use colors to indicate file type when listing possible
|
||||
completions. The colors used are taken from $LS_COLORS, if set. */
|
||||
int _rl_colored_stats = 1;
|
||||
int _rl_colored_stats = 0;
|
||||
#endif
|
||||
|
||||
/* If non-zero, when completing in the middle of a word, don't insert
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
+1
-1
@@ -25,6 +25,6 @@
|
||||
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
|
||||
looks for to find the patch level (for the sccs version string). */
|
||||
|
||||
#define PATCHLEVEL 39
|
||||
#define PATCHLEVEL 0
|
||||
|
||||
#endif /* _PATCHLEVEL_H_ */
|
||||
|
||||
@@ -0,0 +1,30 @@
|
||||
/* patchlevel.h -- current bash patch level */
|
||||
|
||||
/* Copyright (C) 2001-2012 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
Bash is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
Bash is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Bash. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#if !defined (_PATCHLEVEL_H_)
|
||||
#define _PATCHLEVEL_H_
|
||||
|
||||
/* It's important that there be no other strings in this file that match the
|
||||
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
|
||||
looks for to find the patch level (for the sccs version string). */
|
||||
|
||||
#define PATCHLEVEL 39
|
||||
|
||||
#endif /* _PATCHLEVEL_H_ */
|
||||
@@ -168,7 +168,7 @@ expandable_filename:
|
||||
filename = temp->redirectee.filename->word;
|
||||
}
|
||||
else if (temp->redirectee.dest < 0)
|
||||
filename = "file descriptor out of range";
|
||||
filename = _("file descriptor out of range");
|
||||
else
|
||||
filename = allocname = itos (temp->redirectee.dest);
|
||||
|
||||
|
||||
@@ -6738,11 +6738,19 @@ parameter_brace_patsub (varname, value, ind, patsub, quoted, flags)
|
||||
pat = getpattern (lpatsub, quoted, 1);
|
||||
|
||||
if (rep)
|
||||
/* We want to perform quote removal on the expanded replacement even if
|
||||
the entire expansion is double-quoted because the parser and string
|
||||
extraction functions treated quotes in the replacement string as
|
||||
special. */
|
||||
rep = expand_string_if_necessary (rep, quoted & ~(Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT), expand_string_unsplit);
|
||||
{
|
||||
/* We want to perform quote removal on the expanded replacement even if
|
||||
the entire expansion is double-quoted because the parser and string
|
||||
extraction functions treated quotes in the replacement string as
|
||||
special. THIS IS NOT BACKWARDS COMPATIBLE WITH BASH-4.2. */
|
||||
if (shell_compatibility_level > 42)
|
||||
rep = expand_string_if_necessary (rep, quoted & ~(Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT), expand_string_unsplit);
|
||||
/* This is the bash-4.2 code. */
|
||||
else if ((mflags & MATCH_QUOTED) == 0)
|
||||
rep = expand_string_if_necessary (rep, quoted, expand_string_unsplit);
|
||||
else
|
||||
rep = expand_string_to_string_internal (rep, quoted, expand_string_unsplit);
|
||||
}
|
||||
|
||||
/* ksh93 doesn't allow the match specifier to be a part of the expanded
|
||||
pattern. This is an extension. Make sure we don't anchor the pattern
|
||||
|
||||
@@ -9374,7 +9374,7 @@ shell_expand_word_list (tlist, eflags)
|
||||
make_internal_declare (tlist->word->word, "-gA");
|
||||
else if (tlist->word->flags & W_ASSIGNASSOC)
|
||||
make_internal_declare (tlist->word->word, "-A");
|
||||
if ((tlist->word->flags & (W_ASSIGNASSOC|W_ASSNGLOBAL)) == (W_ASSIGNARRAY|W_ASSNGLOBAL))
|
||||
if ((tlist->word->flags & (W_ASSIGNARRAY|W_ASSNGLOBAL)) == (W_ASSIGNARRAY|W_ASSNGLOBAL))
|
||||
make_internal_declare (tlist->word->word, "-ga");
|
||||
else if (tlist->word->flags & W_ASSIGNARRAY)
|
||||
make_internal_declare (tlist->word->word, "-a");
|
||||
|
||||
@@ -7,3 +7,13 @@ set -- ""
|
||||
recho "A${*:-w}R"
|
||||
recho "A${*-w}R"
|
||||
recho "A${*}R"
|
||||
|
||||
set -- $'\177'
|
||||
|
||||
recho "A${*:+w}R"
|
||||
recho "A${*+w}R"
|
||||
recho "A${*}R"
|
||||
|
||||
recho A${*:+w}R
|
||||
recho A${*+w}R
|
||||
recho A${*}R
|
||||
|
||||
@@ -231,3 +231,9 @@ argv[1] = <AR>
|
||||
argv[1] = <AwR>
|
||||
argv[1] = <AR>
|
||||
argv[1] = <AR>
|
||||
argv[1] = <AwR>
|
||||
argv[1] = <AwR>
|
||||
argv[1] = <A^?R>
|
||||
argv[1] = <AwR>
|
||||
argv[1] = <AwR>
|
||||
argv[1] = <A^?R>
|
||||
|
||||
+2
-2
@@ -140,7 +140,7 @@ three
|
||||
one
|
||||
two
|
||||
three
|
||||
4.2
|
||||
4.3
|
||||
echo ${BASH_VERSION%\.*}
|
||||
4.2
|
||||
4.3
|
||||
echo ${BASH_VERSION%\.*}
|
||||
|
||||
@@ -78,3 +78,5 @@ test'ing
|
||||
test'ing
|
||||
test'string
|
||||
a'b'c
|
||||
foo b c baz
|
||||
foo 'bar baz
|
||||
|
||||
@@ -41,3 +41,9 @@ test=test\'string
|
||||
echo "${test//"'"/"'"}"
|
||||
|
||||
x="a'b'c"; echo "${x//\'/\'}"
|
||||
|
||||
printf '%s\n' "foo ${IFS+"b c"} baz"
|
||||
|
||||
# this is where the default behavior differs from posix
|
||||
set -o posix
|
||||
echo "foo ${IFS+'bar} baz"
|
||||
|
||||
@@ -65,3 +65,8 @@ after failure 3
|
||||
true || false no exit
|
||||
false || true no exit
|
||||
false && false no exit
|
||||
A:
|
||||
B:
|
||||
ehB
|
||||
C:
|
||||
D:
|
||||
|
||||
@@ -108,3 +108,4 @@ set +e
|
||||
|
||||
${THIS_SH} ./set-e1.sub
|
||||
${THIS_SH} ./set-e2.sub
|
||||
${THIS_SH} ./set-e3.sub
|
||||
|
||||
@@ -0,0 +1,10 @@
|
||||
foo()
|
||||
{
|
||||
echo A:
|
||||
. ./set-e3a.sub
|
||||
echo D:
|
||||
}
|
||||
|
||||
# should run all the way through; foo being called in a context where set -e
|
||||
# is ignored means that that condition persists through sourcing the file
|
||||
foo && true
|
||||
@@ -0,0 +1,7 @@
|
||||
echo B:
|
||||
|
||||
set -e
|
||||
echo $-
|
||||
false
|
||||
|
||||
echo C:
|
||||
@@ -51,6 +51,15 @@ after fff3: x=4
|
||||
|0|12|
|
||||
|y|
|
||||
|y|
|
||||
a:b:c:d
|
||||
a-b-c-d
|
||||
a:b:c:d
|
||||
g: ,
|
||||
f: ,
|
||||
FIN: asdf fdsa, asdf fdsa
|
||||
g: v = , w =
|
||||
f: v = , w =
|
||||
FIN: v = two, w = one
|
||||
a=z
|
||||
a=b
|
||||
a=z
|
||||
|
||||
@@ -202,5 +202,11 @@ $THIS_SH ./varenv1.sub
|
||||
# more tests; bugs in bash up to version 2.05a
|
||||
$THIS_SH ./varenv2.sub
|
||||
|
||||
# more tests; bugs in bash IFS scoping up through version 4.2
|
||||
$THIS_SH ./varenv3.sub
|
||||
|
||||
# scoping problems with declare -g through bash-4.2
|
||||
${THIS_SH} ./varenv4.sub
|
||||
|
||||
# make sure variable scoping is done right
|
||||
tt() { typeset a=b;echo a=$a; };a=z;echo a=$a;tt;echo a=$a
|
||||
|
||||
@@ -0,0 +1,32 @@
|
||||
#!/bin/bash
|
||||
|
||||
oifs=$IFS
|
||||
|
||||
inner () {
|
||||
#recho inner: "$IFS" >&2
|
||||
echo a/b/c/d
|
||||
exit 0
|
||||
}
|
||||
|
||||
outer() {
|
||||
#recho outer: "$IFS" >&2
|
||||
for i in 1; do
|
||||
IFS=/ read m v k a < <(IFS=$oifs inner)
|
||||
|
||||
echo $m:$v:$k:$a
|
||||
done
|
||||
}
|
||||
|
||||
outer
|
||||
unset m k v a b c d
|
||||
|
||||
for j in 1; do
|
||||
IFS=: read a b c d
|
||||
done < <(outer)
|
||||
|
||||
echo $a-$b-$c-$d
|
||||
unset m k v a b c d
|
||||
|
||||
IFS=: read a b c d < <(outer)
|
||||
|
||||
echo $a:$b:$c:$d
|
||||
@@ -0,0 +1,44 @@
|
||||
f()
|
||||
{
|
||||
local -a v
|
||||
local -a w
|
||||
|
||||
g
|
||||
echo "f: ${v[@]}, ${w[@]}"
|
||||
}
|
||||
|
||||
g()
|
||||
{
|
||||
aux=v
|
||||
declare -ga "$aux=( asdf fdsa )"
|
||||
declare -ga w=( asdf fdsa )
|
||||
|
||||
echo "g: ${v[@]}, ${w[@]}"
|
||||
}
|
||||
|
||||
f
|
||||
echo "FIN: ${v[@]}, ${w[@]}"
|
||||
|
||||
unset v w
|
||||
unset -f f g
|
||||
|
||||
f()
|
||||
{
|
||||
local v
|
||||
local w
|
||||
|
||||
g
|
||||
echo f: v = $v, w = $w
|
||||
}
|
||||
|
||||
g()
|
||||
{
|
||||
aux=v
|
||||
declare -g w=one
|
||||
declare -g "$aux=two"
|
||||
|
||||
echo g: v = $v, w = $w
|
||||
}
|
||||
|
||||
f
|
||||
echo FIN: v = $v, w = $w
|
||||
+57
@@ -57,6 +57,8 @@
|
||||
#include "alias.h"
|
||||
#include "jobs.h"
|
||||
|
||||
#include "version.h"
|
||||
|
||||
#include "builtins/getopt.h"
|
||||
#include "builtins/common.h"
|
||||
|
||||
@@ -4513,6 +4515,7 @@ struct name_and_function {
|
||||
};
|
||||
|
||||
static struct name_and_function special_vars[] = {
|
||||
{ "BASH_COMPAT", sv_shcompat },
|
||||
{ "BASH_XTRACEFD", sv_xtracefd },
|
||||
|
||||
#if defined (JOB_CONTROL)
|
||||
@@ -5171,6 +5174,60 @@ sv_xtracefd (name)
|
||||
}
|
||||
}
|
||||
|
||||
#define MIN_COMPAT_LEVEL 31
|
||||
|
||||
void
|
||||
sv_shcompat (name)
|
||||
char *name;
|
||||
{
|
||||
SHELL_VAR *v;
|
||||
char *val;
|
||||
int tens, ones, compatval;
|
||||
|
||||
v = find_variable (name);
|
||||
if (v == 0)
|
||||
{
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
set_compatibility_opts ();
|
||||
return;
|
||||
}
|
||||
val = value_cell (v);
|
||||
if (val == 0 || *val == '\0')
|
||||
{
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
set_compatibility_opts ();
|
||||
return;
|
||||
}
|
||||
/* Handle decimal-like compatibility version specifications: 4.2 */
|
||||
if (isdigit (val[0]) && val[1] == '.' && isdigit (val[2]) && val[3] == 0)
|
||||
{
|
||||
tens = val[0] - '0';
|
||||
ones = val[2] - '0';
|
||||
compatval = tens*10 + ones;
|
||||
}
|
||||
/* Handle integer-like compatibility version specifications: 42 */
|
||||
else if (isdigit (val[0]) && isdigit (val[1]) && val[2] == 0)
|
||||
{
|
||||
tens = val[0] - '0';
|
||||
ones = val[1] - '0';
|
||||
compatval = tens*10 + ones;
|
||||
}
|
||||
else
|
||||
{
|
||||
compat_error:
|
||||
internal_error (_("%s: %s: compatibility value out of range"), name, val);
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
set_compatibility_opts ();
|
||||
return;
|
||||
}
|
||||
|
||||
if (compatval < MIN_COMPAT_LEVEL || compatval > DEFAULT_COMPAT_LEVEL)
|
||||
goto compat_error;
|
||||
|
||||
shell_compatibility_level = compatval;
|
||||
set_compatibility_opts ();
|
||||
}
|
||||
|
||||
#if defined (JOB_CONTROL)
|
||||
void
|
||||
sv_childmax (name)
|
||||
|
||||
@@ -57,6 +57,8 @@
|
||||
#include "alias.h"
|
||||
#include "jobs.h"
|
||||
|
||||
#include "version.h"
|
||||
|
||||
#include "builtins/getopt.h"
|
||||
#include "builtins/common.h"
|
||||
|
||||
@@ -2601,6 +2603,23 @@ bind_variable (name, value, flags)
|
||||
return (bind_variable_internal (name, value, global_variables->table, 0, flags));
|
||||
}
|
||||
|
||||
SHELL_VAR *
|
||||
bind_global_variable (name, value, flags)
|
||||
const char *name;
|
||||
char *value;
|
||||
int flags;
|
||||
{
|
||||
SHELL_VAR *v, *nv;
|
||||
VAR_CONTEXT *vc, *nvc;
|
||||
int level;
|
||||
|
||||
if (shell_variables == 0)
|
||||
create_variable_tables ();
|
||||
|
||||
/* bind_variable_internal will handle nameref resolution in this case */
|
||||
return (bind_variable_internal (name, value, global_variables->table, 0, flags));
|
||||
}
|
||||
|
||||
/* Make VAR, a simple shell variable, have value VALUE. Once assigned a
|
||||
value, variables are no longer invisible. This is a duplicate of part
|
||||
of the internals of bind_variable. If the variable is exported, or
|
||||
@@ -4496,6 +4515,7 @@ struct name_and_function {
|
||||
};
|
||||
|
||||
static struct name_and_function special_vars[] = {
|
||||
{ "BASH_COMPAT", sv_shcompat },
|
||||
{ "BASH_XTRACEFD", sv_xtracefd },
|
||||
|
||||
#if defined (JOB_CONTROL)
|
||||
@@ -5154,6 +5174,60 @@ sv_xtracefd (name)
|
||||
}
|
||||
}
|
||||
|
||||
#define MIN_COMPAT_LEVEL 31
|
||||
|
||||
void
|
||||
sv_shcompat (name)
|
||||
char *name;
|
||||
{
|
||||
SHELL_VAR *v;
|
||||
char *val;
|
||||
int tens, ones, compatval;
|
||||
|
||||
v = find_variable (name);
|
||||
if (v == 0)
|
||||
{
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
set_compatibility_opts ();
|
||||
return;
|
||||
}
|
||||
val = value_cell (v);
|
||||
if (val == 0 || *val == '\0')
|
||||
{
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
set_compatibility_opts ();
|
||||
return;
|
||||
}
|
||||
/* Handle decimal-like compatibility version specifications: 4.2 */
|
||||
if (isdigit (val[0]) && val[1] == '.' && isdigit (val[2]) && val[3] == 0)
|
||||
{
|
||||
tens = val[0] - '0';
|
||||
ones = val[2] - '0';
|
||||
compatval = tens*10 + ones;
|
||||
}
|
||||
/* Handle integer-like compatibility version specifications: 42 */
|
||||
else if (isdigit (val[0]) && isdigit (val[1]) && val[2] == 0)
|
||||
{
|
||||
tens = val[0] - '0';
|
||||
ones = val[1] - '0';
|
||||
compatval = tens*10 + ones;
|
||||
}
|
||||
else
|
||||
{
|
||||
compat_error:
|
||||
internal_error (_("%s: %s: value out of range"), name, val);
|
||||
shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
set_compatibility_opts ();
|
||||
return;
|
||||
}
|
||||
|
||||
if (compatval < MIN_COMPAT_LEVEL || compatval > DEFAULT_COMPAT_LEVEL)
|
||||
goto compat_error;
|
||||
|
||||
shell_compatibility_level = compatval;
|
||||
set_compatibility_opts ();
|
||||
}
|
||||
|
||||
#if defined (JOB_CONTROL)
|
||||
void
|
||||
sv_childmax (name)
|
||||
|
||||
@@ -378,6 +378,7 @@ extern void sv_optind __P((char *));
|
||||
extern void sv_opterr __P((char *));
|
||||
extern void sv_locale __P((char *));
|
||||
extern void sv_xtracefd __P((char *));
|
||||
extern void sv_shcompat __P((char *));
|
||||
|
||||
#if defined (READLINE)
|
||||
extern void sv_comp_wordbreaks __P((char *));
|
||||
|
||||
@@ -253,6 +253,7 @@ extern SHELL_VAR *find_tempenv_variable __P((const char *));
|
||||
extern SHELL_VAR *copy_variable __P((SHELL_VAR *));
|
||||
extern SHELL_VAR *make_local_variable __P((const char *));
|
||||
extern SHELL_VAR *bind_variable __P((const char *, char *, int));
|
||||
extern SHELL_VAR *bind_global_variable __P((const char *, char *, int));
|
||||
extern SHELL_VAR *bind_function __P((const char *, COMMAND *));
|
||||
|
||||
extern void bind_function_def __P((const char *, FUNCTION_DEF *));
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
/* version.c -- distribution and version numbers. */
|
||||
|
||||
/* Copyright (C) 1989-2011 Free Software Foundation, Inc.
|
||||
/* Copyright (C) 1989-2012 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
@@ -43,7 +43,7 @@ const char * const release_status = (char *)0;
|
||||
#endif
|
||||
const char * const sccs_version = SCCSVERSION;
|
||||
|
||||
const char * const bash_copyright = N_("Copyright (C) 2011 Free Software Foundation, Inc.");
|
||||
const char * const bash_copyright = N_("Copyright (C) 2012 Free Software Foundation, Inc.");
|
||||
const char * const bash_license = N_("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n");
|
||||
|
||||
/* If == 31, shell compatible with bash-3.1, == 32 with bash-3.2, and so on */
|
||||
|
||||
+94
@@ -0,0 +1,94 @@
|
||||
/* version.c -- distribution and version numbers. */
|
||||
|
||||
/* Copyright (C) 1989-2011 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
Bash is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
Bash is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Bash. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "stdc.h"
|
||||
|
||||
#include "version.h"
|
||||
#include "patchlevel.h"
|
||||
#include "conftypes.h"
|
||||
|
||||
#include "bashintl.h"
|
||||
|
||||
extern char *shell_name;
|
||||
|
||||
/* Defines from version.h */
|
||||
const char * const dist_version = DISTVERSION;
|
||||
const int patch_level = PATCHLEVEL;
|
||||
const int build_version = BUILDVERSION;
|
||||
#ifdef RELSTATUS
|
||||
const char * const release_status = RELSTATUS;
|
||||
#else
|
||||
const char * const release_status = (char *)0;
|
||||
#endif
|
||||
const char * const sccs_version = SCCSVERSION;
|
||||
|
||||
const char * const bash_copyright = N_("Copyright (C) 2011 Free Software Foundation, Inc.");
|
||||
const char * const bash_license = N_("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n");
|
||||
|
||||
/* If == 31, shell compatible with bash-3.1, == 32 with bash-3.2, and so on */
|
||||
int shell_compatibility_level = DEFAULT_COMPAT_LEVEL;
|
||||
|
||||
/* Functions for getting, setting, and displaying the shell version. */
|
||||
|
||||
/* Forward declarations so we don't have to include externs.h */
|
||||
extern char *shell_version_string __P((void));
|
||||
extern void show_shell_version __P((int));
|
||||
|
||||
/* Give version information about this shell. */
|
||||
char *
|
||||
shell_version_string ()
|
||||
{
|
||||
static char tt[32] = { '\0' };
|
||||
|
||||
if (tt[0] == '\0')
|
||||
{
|
||||
if (release_status)
|
||||
#if defined (HAVE_SNPRINTF)
|
||||
snprintf (tt, sizeof (tt), "%s.%d(%d)-%s", dist_version, patch_level, build_version, release_status);
|
||||
#else
|
||||
sprintf (tt, "%s.%d(%d)-%s", dist_version, patch_level, build_version, release_status);
|
||||
#endif
|
||||
else
|
||||
#if defined (HAVE_SNPRINTF)
|
||||
snprintf (tt, sizeof (tt), "%s.%d(%d)", dist_version, patch_level, build_version);
|
||||
#else
|
||||
sprintf (tt, "%s.%d(%d)", dist_version, patch_level, build_version);
|
||||
#endif
|
||||
}
|
||||
return tt;
|
||||
}
|
||||
|
||||
void
|
||||
show_shell_version (extended)
|
||||
int extended;
|
||||
{
|
||||
printf (_("GNU bash, version %s (%s)\n"), shell_version_string (), MACHTYPE);
|
||||
if (extended)
|
||||
{
|
||||
printf ("%s\n", _(bash_copyright));
|
||||
printf ("%s\n", _(bash_license));
|
||||
printf ("%s\n", _("This is free software; you are free to change and redistribute it."));
|
||||
printf ("%s\n", _("There is NO WARRANTY, to the extent permitted by law."));
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user