Bash-4.3 patch 32

[thirdparty/bash.git] / CWRU / changelog

                                 2/14/2011
                                 ---------
[bash-4.2 released]

                                   2/15
                                   ----
lib/glob/gmisc.c
        - fix wmatchlen and umatchlen to avoid going past the end of the
          string on an incomplete bracket expression that ends with a
          NUL.  Partial fix for bug reported by Clark Wang <dearvoid@gmail.com>

                                   2/16
                                   ----
subst.h
        - new string extract flag value: SX_WORD.  Used when calling
          extract_dollar_brace_string to skip over the word in
          ${param op word} from parameter_brace_expand

subst.c
        - change parameter_brace_expand to add SX_WORD to flags passed to
          extract_dollar_brace_string
        - change parameter_brace_expand to use SX_POSIXEXP for all non-posix
          word expansion operators that treat single quotes as special, not
          just % and #
        - change extract_dollar_brace_string to initialize dolbrace_state to
          DOLBRACE_WORD if SX_WORD flag supplied and we shouldn't use
          DOLBRACE_QUOTE.  Fixes bug reported by Juergen Daubert <jue@jue.li>

doc/{bash.1,bashref.texi}
        - document the exact expansions here strings undergo

                                   2/17
                                   ----
lib/readline/vi_mode.c
        - make sure that `dd', `cc', and `yy' call vidomove_dispatch from
          rl_domove_read_callback.  Fixes bug reported by Clark Wang
          <dearvoid@gmail.com>

lib/readline/callback.c
        - make sure _rl_internal_char_cleanup is called after the
          vi-motion callbacks (rl_vi_domove_callback) in rl_callback_read_char.
          Companion to above fix

doc/{bash.1,bashref.texi}
        - make sure that the text describing the rhs of the == and =~
          operators to [[ states that only the quoted portion of the pattern
          is matched as a string

                                   2/18
                                   ----
lib/glob/gmisc.c
        - better fix for umatchlen/wmatchlen: keep track of the number of
          characters in a bracket expression as the value to increase
          matchlen by if the bracket expression is not well-formed.  Fixes
          bug reported by Clark Wang <dearvoid@gmail.com>

subst.c
        - change expand_string_for_rhs so that it sets the W_NOSPLIT2 flag
          in the word flags.  We will not perform word splitting or quote
          removal on the result, so we do not want to add quoted nulls if
          we see "" or ''.  Fixes bug reported by Mike Frysinger
          <vapier@gentoo.org>

                                   2/19
                                   ----
variables.c
        - new function, int chkexport(name), checks whether variable NAME is
          exported and remakes the export environment if necessary.  Returns
          1 if NAME is exported and 0 if not
        - call chkexport(name) to get tzset to look at the right variable in
          the environment when modifying TZ in sv_tz.  Don't call tzset if
          chkexport doesn't indicate that the variable is exported

variables.h
        - new extern declaration for chkexport


{parse.y,builtins/printf.def}
        - call sv_tz before calling localtime() when formatting time strings
          in prompt strings or using printf.  Fixes bug reported by
          Dennis Williamson <dennistwilliamson@gmail.com>

execute_cmd.c
        - modify fix of 2/9 to add casts when those variables are passed to
          functions; some compilers throw errors instead of warnings.  Report
          and fix from Joachim Schmitz <jojo@schmitz-digital.de>

support/shobj-conf
        - add a stanza for nsk on the Tandem from Joachim Schmitz
          <jojo@schmitz-digital.de>

{shell,lib/readline/shell}.c
        - Tandem systems should use getpwnam (getlogin()); for some reason
          they don't do well with using getuid().  Fix from Joachim Schmitz
          <jojo@schmitz-digital.de>

                                    3/1
                                    ---
variables.c
        - make sure that the return value from find_variable is non-null
          before trying to use it in chkexport.  Fixes bug reported by
          Evangelos Foutras <foutrelis@gmail.com>

                                    3/3
                                    ---
parse.y
        - when adding $$ to the current token buffer in read_token_word(),
          don't xmalloc a buffer for two characters and then strcpy it, just
          copy the characters directly into the token buffer.  Fix from
          Michael Whitten <mfwitten@gmail.com>

execute_cmd.c
        - fix expand_word_unsplit to add the W_NOSPLIT2 flag to the word to
          be expanded, so "" doesn't add CTLNUL.  Similar to fix of 2/18 to
          expand_string_for_rhs.  Fixes bug reported by Nathanael D. Noblet
          <nathanael@gnat.ca> and Matthias Klose <doko@debian.org>

parse.y
        - fix extended_glob case of read_token_word to allocate an extra
          space in the buffer for the next character read after the extended
          glob specification if it's a CTLESC or CTLNUL.  Report and fix from
          Michael Witten <mfwitten@gmail.com>
        - fix shell expansions case of read_token_word to allocate an extra
          space in the buffer for the next character read after the shell
          expansion if it's a CTLESC or CTLNUL.  Report and fix from
          Michael Witten <mfwitten@gmail.com>
        - TENTATIVE: fix read_token_word to reduce the amount of buffer space
          required to hold the translated and double-quoted value of $"..."
          strings.  Report and fix from Michael Witten <mfwitten@gmail.com>
        - change code around got_character and got_escaped_character labels to
          make sure that we call RESIZE_MALLOCED_BUFFER before adding the
          CTLESC before a CTLESC or CTLNUL, and before adding the character if
          we're not adding a CTLESC.  Report and fix from
          Michael Witten <mfwitten@gmail.com>

subst.c
        - new param flags value, PF_ASSIGNRHS, mirrors W_ASSIGNRHS, noting that
          parameter expansion is on rhs of assignment statement.  That inhibits
          word splitting
        - change param_expand to call string_list_dollar_at with quoted == 1
          if PF_ASSIGNRHS is set, so it will quote IFS characters in the
          positional parameter before separating them with the first char of
          $IFS.  This keeps the rhs from being split inappropriately.  Fixes
          bug reported by Andres Perera <andres.p@zoho.com>

                                    3/4
                                    ---
lib/readline/bind.c
        - add a missing free of `names' in rl_function_dumper.  Bug report
          and fix from Michael Snyder <msnyder@vmware.com>

                                    3/5
                                    ---
lib/readline/rltty.c
        - change rl_deprep_terminal so it uses fileno (stdin) for the tty fd
          if rl_instream is not set, like rl_prep_terminal

                                    3/6
                                    ---
lib/readline/display.c
        - fix rl_message to use a dynamically-allocated buffer instead of a
          fixed-size buffer of 128 chars for the `local message prompt'.  Bug
          report and fix from Micah Cowan <micah@cowan.name>

                                    3/7
                                    ---
jobs.c
        - add sentinel to wait_sigint_handler so it only sets wait_sigint_received
          if waiting_for_child is non-zero; otherwise, it restores the old
          SIGINT handler and sends itself the SIGINT
        - set waiting_for_child around the calls to waitchld that use it to
          synchronously wait for a process
        - change logic that decides whether or not the child process blocked
          or handled SIGINT based on whether or not waitpid returns -1/EINTR
          and the shell receives a SIGINT and the child does not exit.  If
          the child later exits due to SIGINT, cancel the assumoption that it
          was handled
        - instead of testing whether or not the child exited due to SIGINT
          when deciding whether the shell should act on a SIGINT it received
          while waiting, test whether or not we think the child caught
          SIGINT.  If it did, we let it go (unless the shell has it trapped);
          if it did not catch it, the shell acts on the SIGINT.  Fix from
          Linus Torvalds <torvalds@linux-foundation.org>, bug report originally
          from Oleg Nesterov <oleg@redhat.com>

                                    3/8
                                    ---
shell.c
        - initialize no_line_editing to 1 if READLINE is not defined -- we
          can't have line editing without readline

                                   3/12
                                   ----
lib/readline/signals.c
        - add SIGHUP to the set of signals readline handles

lib/readline/doc/rltech.texi
        - document that SIGHUP is now part of the set of signals readline
          handles

lib/readline/input.c
        - if _rl_caught_signal indicates that read() was interrupted by a
          SIGHUP or SIGTERM, return READERR or EOF as appropriate
        - call rl_event_hook, if it's set, if call to read in rl_getc
          returns -1/EINTR.  If rl_event_hook doesn't do anything, this
          continues the loop as before.  This handles the other fatal
          signals

execute_cmd.c
        - add a couple of QUIT; calls to execute_disk_command and
          execute_simple_command to improve responsiveness to interrupts
          and fatal signals

input.c
        - rearrange getc_with_restart so that the return values from read()
          are handled right

parse.y
        - don't need to set terminate_immediately in yy_stream_get, since
          getc_with_restart checks for terminating signals itself
        - since readline returns READERR on SIGHUP or SIGTERM, don't need
          to set terminate_immediately.  Still doesn't handle other
          signals well -- will have to check that some more

bashline.c
        - new function, bash_event_hook, for rl_event_hook.  Just checks for
          terminating signals and acts on them using CHECK_TERMSIG.
        - set rl_event_hook to bash_event_hook

builtins/read.def
        - take out setting terminate_immediately; add calls to CHECK_TERMSIG
          after read calls

doc/{bash.1,bashref.texi}
        - move the text describing the effect of negative subscripts used to
          reference indexed array elements to the paragraphs describing
          ${parameter[subscript]}, since that's where they are implemented.
          Pointed out by Christopher F. A. Johnson <cfajohnson@gmail.com>

arrayfunc.[ch],subst.c
        - array_expand_index now takes a new first argument: a SHELL_VAR *
          of the array variable being subscripted.  Can be used later to fully
          implement negative subscripts

                                   3/14
                                   ----
lib/glob/glob.c
        - fix mbskipname to not turn the directory entry name into a wide char
          string if the conversion of the pattern to a wide char string fails
        - fix mbskipname to call skipname if either the pattern or the filename
          can't be converted into a wide-char string

lib/glob/xmbsrtowcs.c
        - fix xdupmbstowcs2 to handle return value of 0 from mbsnrtowcs and
          short-circuit with failure in that case.  Fixes bug reported by
          Roman Rakus <rrakus@redhat.com>

                                   3/15
                                   ----
bashline.c
        - new variable, bash_filename_quote_characters to store the value
          assigned to rl_filename_quote_characters so it can be restored
          if changed.
        - change bashline_reset and attempt_shell_completion to restore
          rl_filename_quote_characters if not set to default

                                   3/22
                                   ----
lib/glob/glob.c
        - wdequote_pathname falls back to udequote_pathname if xdupmbstowcs
          fails to convert the pathname to a wide-character string

lib/glob/xmbsrtowcs.c
        - xdupmbstowcs2: change to fix problem with leading '\\' (results in
          nms == 0, which causes it to short-circuit with failure right
          away).  Fixes bug pointed out by Werner Fink <werner@suse.de>
        - xdupmbstowcs2: compensate for mbsnrtowcs returning 0 by taking the
          next single-byte character and going on
        - xdupmbstowcs2: change memory allocation to increase by WSBUF_INC
          bytes; try to avoid calls to realloc (even if they don't actually
          result in more memory being allocated)

                                   3/24
                                   ----
doc/{bash.1,bashref.texi}
        - slightly modify BASH_SUBSHELL description based on complaint from
          Sam Liddicott <sam@liddicott.com>

                                   3/25
                                   ----
trap.c
        - change free_trap_strings to not call free_trap_string for signals
          that are being ignored, like reset_or_restore_signal_handlers.
          Fixes bug reported by Satoshi Takahashi <blue3waters@gmail.com>

                                   3/26
                                   ----
lib/readline/rltypedefs.h
        - remove old Function/VFunction/CPFunction/CPPFunction typedefs as
          suggested by Tom Tromey <tromey@redhat.com>

lib/readline/rlstdc.h
        - move defines for USE_VARARGS/PREFER_STDARG/PREFER_VARARGS from
          config.h.in to here because declaration of rl_message in
          readline.h uses the defines.  This makes it hard for another packages
          to use after the header files are installed, since config.h is not
          one of the installed files.  Suggested by Tom Tromey
          <tromey@redhat.com>

                                   3/27
                                   ----
print_cmd.c
        - change indirection_string from a static buffer to a dynamic one
          managed by indirection_level_string(), so we don't end up truncating
          PS4.  Suggested by Dennis Williamson <dennistwilliamson@gmail.com>

lib/readline/shell.c
        - change sh_set_lines_and_columns to use static buffers instead of
          allocating the buffers to pass to setenv/putenv

lib/readline/terminal.c
        - change _rl_get_screen_size to not call sh_set_lines_and_columns if
          ignore_env == 0
        - _rl_sigwinch_resize_terminal: new function to just retrieve terminal
          size, ignoring environment

lib/readline/rlprivate.h
        - new external declaration for _rl_sigwinch_resize_terminal() (currently
          unused)

lib/readline/signals.c
        - rl_sigwinch_handler: set _rl_caught_signal to SIGWINCH
        - rl_sigwinch_handler: don't immediately call rl_resize_terminal; just
          leave _rl_caught_signal set for RL_CHECK_SIGNALS to handle
        - _rl_signal_handler: call rl_resize_terminal if sig == SIGWINCH.
          Should fix hang when sending multiple repeated SIGWINCH reported by
          Henning Bekel <h.bekel@googlemail.com>

                                   3/29
                                   ----
lib/sh/snprintf.c
        - include math.h for any defines for isinf/isnan
        - use code from gnulib documentation to implement isinf/isnan if they
          are not defined

configure.in
        - don't check for isinf or isnan; c99 says they're macros anyway

config.h.in
        - remove defines for ISINF_IN_LIBC and ISNAN_IN_LIBC, no longer used
          by snprintf.c

                                    4/2
                                    ---
braces.c
        - brace_gobbler: fix to understand double-quoted command substitution,
          since the shell understands unquoted comsubs.  Fixes bug reported
          by Michael Whitten <mfwitten@gmail.com>

lib/readline/display.c
        - include <pc.h> on MDOS
        - get and set screen size using DJGPP-specific calls on MSDOS
        - move cursor up clear screen using DJGPP-specific calls
        - don't call tputs on DJGPP; there is no good terminfo support

lib/readline/terminal.c
        - include <pc.h> on MDOS
        - get and set screen size using DJGPP-specific calls on MSDOS
        - use DJGPP-specific initialization on MSDOS, zeroing all the
          _rl_term_* variables
        - don't call tputs on DJGPP; there is no good terminfo support
          DJGPP support from Eli Zaretskii  <eliz@gnu.org>

                                    4/6
                                    ---

config-top.h
        - change DEFAULT_PATH_VALUE to something more useful and modern

                                    4/8
                                    ---
tests/printf2.sub
        - make sure LC_ALL and LC_CTYPE are set so LANG assignment takes effect.
          Reported by Cedric Arbogast <arbogast.cedric@gmail.com>

                                   4/11
                                   ----
include/chartypes.h
        - fix a couple of dicey defines (though ones that don't cause any
          compiler warnings) in IN_CTYPE_DOMAIN

doc/{bashref.texi,bash.1}
        - add note referring to duplicating file descriptors in sections
          describing redirecting stdout and stderr and appending to stdout
          and stderr.  Suggested by Matthew Dinger <mdinger.bugzilla@gmail.com>

pcomplete.c
        - it_init_helptopics: new function to support completing on help topics,
          not just builtins
        - it_helptopics: new programmable completion list of help topics
        - build list of helptopic completions in gen_action_completions on
          demand

pcomplete.h
        - new extern declaration for it_helptopics

builtins/complete.def
        - the `helptopic' action now maps to CA_HELPTOPIC intead of CA_BUILTIN,
          since there are more help topics than just builtins.  Suggested by
          Clark Wang <dearvoid@gmail.com>

                                   4/12
                                   ----
print_cmd.c
        - fix print_arith_for_command to add a call to PRINT_DEFERRED_HEREDOCS
          before ending the body of the command, so heredocs get attached to
          the right command instead of to the loop.  From gentoo bug 363371
          http://bugs.gentoo.org/show_bug.cgi?id=363371

execute_cmd.c
        - change coproc_pidchk to unset the appropriate shell variables when
          the (currently single) known coproc pid terminates
        - cleanup and new functions to fully support multiple coprocesses when
          and if I decide to go there

                                   4/13
                                   ----
print_cmd.c
        - fix print_group_command to add a call to PRINT_DEFERRED_HEREDOCS
          after call to make_command_string_internal before printing closing
          `}'
        - fix make_command_string_internal to add a call to
          PRINT_DEFERRED_HEREDOCS after recursive call to
          make_command_string_internal in case cm_subshell before printing
          closing `)'

                                   4/14
                                   ----
print_cmd.c
        - change overlapping strcpy in named_function_string to memmove

sig.h
        - UNBLOCK_SIGNAL: convenience define, same as UNBLOCK_CHILD, just
          restores an old signal mask

trap.c
        - set_signal: instead of setting the signal handler to SIG_IGN while
          installing the new trap handler, block the signal and unblock it
          after the new handler is installed.  Fixes bug reported by Roman
          Rakus <rrakus@redhat.com>

                                   4/15
                                   ----
doc/{bash.1,bashref.texi}
        - make it clear that enabling monitor mode means that all jobs run in
          separate process groups

                                   4/18
                                   ----
builtins/fc.def
        - update fix of 4/15/2010 to not take saved_command_line_count into
          account when stepping down the history list to make sure that
          last_hist indexes something that is valid.  Fixes bug reported by
          <piuma@piumalab.org>

                                   4/19
                                   ----
builtins/fc.def
        - fc_gethnum: make sure the calculation to decide the last history
          entry is exactly the same as fc_builtin.  Fixes bug uncovered by
          fix of 4/18 to stop seg fault

                                   4/22
                                   ----
lib/readline/terminal.c
        - change _rl_enable_meta_key to set a flag indicating that it sent the
          enable-meta sequence
        - _rl_disable_meta_key: new function to turn off meta mode after we
          turned it on with _rl_enable_meta_key

lib/readline/rlprivate.h
        - extern declaration for _rl_disable_meta_key

configure.in
        - if not cross-compiling, set CFLAGS_FOR_BUILD from any CFLAGS inherited
          from the environment.  Fixes HP/UX build problem reported by
          "Daniel Richard G." <skunk@iSKUNK.ORG>

                                   4/26
                                   ----
config-top.h
        - define MULTIPLE_COPROCS to 0 so the code is still disabled but easy
          to enable via configure option or editing this file

                                   4/29
                                   ----
lib/sh/eaccess.c
        - freebsd provides faccessat, with the same misfeature as their eaccess
          and access implementations (X_OK returns true for uid==0 regardless
          of the actual file permissions), so reorganize code to check the
          file permissions as with eaccess.  Report and fix from Johan Hattne
          <johan.hattne@utsouthwestern.edu>

                                    5/2
                                    ---
doc/{bash.1,bashref.texi}
        - add forward reference to `Pattern Matching' from `Pathname
          Expansion', suggested by Greg Wooledge <wooledg@eeg.ccf.org>

                                    5/5
                                    ---
pcomplib.c
        - the bash_completion project now distributes over 200 completions
          for various programs, with no end in sight, so increase the value
          of COMPLETE_HASH_BUCKETS from 32 to 128

pathexp.c
        - quote_string_for_globbing: make sure CTLESC quoting CTLESC is
          translated into \<CTLESC> even if the flags include QGLOB_REGEXP.
          We don't want to process the second CTLESC as a quote character.
          Fixes bug reported by Shawn Bohrer <sbohrer@rgmadvisors.com>

                                    5/6
                                    ---
builtins/printf.def
        - change PRETURN to not call fflush if ferror(stdout) is true
        - if a call to one of the stdio functions or printstr leaves
          ferror(stdout) true, and PRETURN is going to be called, let PRETURN
          print the error message rather than doubling up the messages.  Fixes
          problem reported by Roman Rakus <rrakus@redhat.com>

                                    5/9
                                    ---
doc/{bash.1,bashref.texi}
        - add note to the effect that lists inside compound command can be
          terminated by newlines as well as semicolons.  Suggested by
          Roman Byshko <rbyshko@gmail.com>

                                   5/10
                                   ----
subst.c
        - remove_quoted_nulls: fix problem that caused it to skip over the
          character after a CTLNUL, which had the effect of skipping every
          other of a series of CTLNULs.  Fixes bug reported by
          Marten Wikstrom <marten.wikstrom@keystream.se>

                                   5/11
                                   ----
subst.c
        - extract_process_subst: add SX_COMMAND flag to call to
          extract_delimited_string, since we're expanding the same sort of
          command as command substitution.  Fixes bug reported in Ubuntu
          bug 779848

                                   5/12
                                   ----
configure.in
        - set the prefer_shared and prefer_static variables appropriately
          depending on the value of $opt_static_link

aclocal.m4
        - AC_LIB_LINKFLAGS_BODY: change to not prefer shared versions of the
          libraries it's searching for if the prefer_shared variable is "no".
          Fixes problem reported by Cedric Arbogast <arbogast.cedric@gmail.com>

                                   5/13
                                   ----
lib/readline/readline.c
        - _rl_internal_teardown: add call to _rl_disable_meta_key to make the
          meta key active only for the duration of the call to readline()
        - _rl_internal_setup: move call to _rl_enable_meta_key here from
          readline_initialize_everything so the meta key is active only for
          the duration of the call to readline().  Suggestion from Miroslav
          Lichvar <mlichvar@redhat.com>

builtins/help.def
        - help_builtin: change strncmp to strcmp so that `help read' no longer
          matches `readonly'.  Suggested by Clark Wang <dearvoid@gmail.com>

config.h.in
        - add define for GLIBC21, checked using jm_GLIBC21 as part of the tests
          for libintl

lib/malloc/malloc.c
        - internal_free: don't use the cached value of memtop when deciding
          whether or not to adjust the break and give memory back to the kernel
          when using the GNU C library, since glibc uses sbrk for its own
          internal purposes.  From Debian bug 614815, reported by Samuel
          Thibault <samuel.thibault@gnu.org>

aclocal.m4
        - BASH_STRUCT_WEXITSTATUS_OFFSET: change AC_RUN_IFELSE to AC_TRY_RUN
          to avoid warning about not using AC_LANG_SOURCE

                                   5/14
                                   ----
bashline.[ch]
        - two new functions, bashline_set_event_hook and bashline_reset_event_hook,
          to set rl_event_hook to bash_event_hook and back to NULL, respectively
        - don't set rl_event_hook unconditionally

sig.c
        - termsig_sighandler: if the shell is currently interactive and
          readline is active, call bashline_set_event_hook to cause
          termsig_handler to be called via bash_event_hook when the shell
          returns from the signal handler

                                   5/15
                                   ----
lib/readline/display.c
        - _rl_col_width: Mac OS X has a bug in wcwidth: it does not return 0
          for UTF-8 combining characters.  Added workaround dependent on
          MACOSX.  Fixes problem pointed out by Thomas De Contes
          <d.l.tDecontes@free.fr>

                                   5/16
                                   ----
lib/readline/rlmbutil.h
        - WCWIDTH: wrapper for wcwidth that returns 0 for Unicode combining
          characters on systems where wcwidth is broken (e.g., Mac OS X).

lib/readline/{complete,display,mbutil}.c
        - use WCWIDTH instead of wcwidth

                                   5/17
                                   ----
lib/readline/display.c
        - update_line: after computing ofd and nfd, see whether the next
          character in ofd is a zero-width combining character.  If it is,
          back ofd and nfd up one, so the base characters no longer compare
          as equivalent.  Fixes problem reported by Keith Winstein
          <keithw@mit.edu>

lib/readline/nls.c
        - _rl_utf8locale: new flag variable, set to non-zero if the current
          locale is UTF-8
        - utf8locale(): new function, returns 1 if the passed lspec (or the
          current locale) indicates that the locale is UTF-8.  Called from
          _rl_init_eightbit

lib/readline/rlprivate.h
        - extern declaration for _rl_utf8locale

locale.c
        - locale_utf8locale: new flag variable, set to non-zero if the current
          locale is UTF-8 (currently unused)
        - locale_isutf8(): new function, returns 1 if the passed lspec (or the
          current locale) indicates that the locale is UTF-8.  Should be called
          whenever the locale or LC_CTYPE value is modified

aclocal.m4
        - BASH_WCWIDTH_BROKEN: new test for whether or not wcwidth returns
          zero-width characters like unicode combining characters as having
          display length 1; define WCWIDTH_BROKEN in this case

config.h.in
        - WCWIDTH_BROKEN: new define

lib/readline/rlmbutil.h
        - change WCWIDTH macro to use _rl_utf8locale and the full range of
          Unicode combining characters (U+0300-U+036F)

                                   5/19
                                   ----
lib/readline/rlprivate.h
        - _rl_search_context: new member, prevc, will hold character read
          prior to lastc

lib/readline/isearch.c
        - _rl_isearch_dispatch: if the character causes us to index into
          another keymap, save that character in cxt->prevc
        - _rl_isearch_dispatch: if we index into another keymap, but don't
          find a function that's special to i-search, and the character that
          caused us to index into that keymap would have terminated the
          search, push back cxt->prevc and cxt->lastc to make it appear as
          if `prevc' terminated the search, and execute lastc as a command.
          We have to push prevc back so we index into the same keymap before
          we read lastc.  Fixes bug report from Davor Cubranic
          <cubranic@stat.ubc.ca>

                                   5/20
                                   ----
expr.c
        - expr_bind_variable: pay attention to the return value from
          bind_variable and check whether or not we should error out due to
          a readonly or noassign variable.  Fixes bug reported by Eric
          Blake <eblake@redhat.com>

                                   5/26
                                   ----

lib/readline/search.c
        - include histlib.h for ANCHORED_SEARCH defines
        - rl_history_search_flags: new variable, holds ANCHORED_SEARCH flag for
          the duration of a history search
        - rl_history_search_reinit: takes a new flags variable, defines whether
          or not the search is anchored; assigned to rl_history_search_flags
        - rl_history_serarch_reinit: if ANCHORED_SEARCH flag passed, add ^ to
          beginning of search string; otherwise search string is unmodified
        - rl_history_search_internal: set rl_point appropriately based on
          whether or not rl_history_search_flags includes ANCHORED_SEARCH
        - rl_history_substr_search_forward: new function, for non-anchored
          substring search forward through history for string of characters
          preceding rl_point
        - rl_history_substr_search_backward: new function, for non-anchored
          substring search backward through history for string of characters
          preceding rl_point.  Original code from Niraj Kulkarni
          <kulkarniniraj14@gmail.com>

lib/readline/readline.h
        - extern declarations for rl_history_substr_search_{for,back}ward

lib/readline/funmap.c
        - history-substring-search-forward: new bindable command, invokes
          rl_history_substr_search_forward
        - history-substring-search-backward: new bindable command, invokes
          rl_history_substr_search_backward

lib/readline/doc/{rluser.texi,readline.3}
        - document history-substring-search-forward and
          history-substring-search-backward

                                   5/27
                                   ----
{nojobs,jobs}.c
        - add support for DONT_REPORT_SIGTERM so that the shell doesn't print
          a message when a job exits due to SIGTERM since that's the default
          signal sent by the kill builtin.  Suggested by Marc Herbert
          <mark.herbert@gmail.com>

config-top.h
        - DONT_REPORT_SIGTERM: new user-modifiable setting.  Commented out
          by default

                                   5/28
                                   ----
lib/readline/bind.c
        - _rl_skip_to_delim: skip to a closing double quote or other delimiter,
          allowing backslash to quote any character, including the delimiter
        - rl_parse_and_bind: call _rl_skip_to_delim instead of using inline
          code
        - rl_parse_and_bind: allow quoted strings as the values of string
          variables.  Variable values without double quotes have trailing
          whitespace removed (which still allows embedded whitespace, for
          better or worse).  Fixes problem with string variables not matching
          in `set' command if values happen to have trailing spaces or tabs
          (debian bash bug #602762), but introduces slight incompatibility.

                                   5/29
                                   ----
doc/{bash.1,bashref.texi}
        - clarify unset description to specify that without options, a
          variable, then a shell function if there is no variable by that
          name, is unset.  Fixes discrepancy reported by Mu Qiao
          <qiaomuf@gentoo.org>

                                   6/4
                                   ----
doc/{bash.1,bashref.texi}
        - clarify description of LINES and COLUMNS (and checkwinsize shopt
          option) to make it clear that only interactive shells set a
          handler for SIGWINCH and update LINES and COLUMNS.  Original
          report submitted by Jonathan Nieder <jrnieder@gmail.com>

arrayfunc.c
        - expand_compound_array_assignment: defer expansion of words between
          parens when performing compound assignmnt to an associative array
          variable
        - assign_compound_array_list: perform the same expansions when doing
          a compound array assignment to an associative array variable as
          when doing a straight array index assignment.  The idea is that
                foo=( [ind1]=bar [ind2]=quux)
          is the same as
                foo[ind1]=bar ; foo[ind2]=quux

          This fixes problems with double-expansion and quote removal being
          performed on the array indices

                                   6/13
                                   ----
doc/{bash.1,bashref.texi}
        - Add a little text to make it clear that the locale determines how
          range expressions in glob patterns are handled.


                                   6/21
                                   ----
builtins/read.def
        - display a message and return error status if -a is used with an
          existing associative array.  Fixes bug reported by Curtis Doty
          <curtis@greenkey.net>

                                   6/24
                                   ----
{jobs,nojobs}.c
        - non-interactive shells now react to the setting of checkwinsize
          and set LINES and COLUMNS after a foreground job exits.  From a
          suggestion by Leslie Rhorer <lrhorer@satx.rr.com>

doc/{bash.1,bashref.texi}
        - checkwinsize: remove language saying that only interactive shells
          check the window size after each command

lib/readline/histfile.c
        - history_backupfile: new file, creates a backup history file name
          given a filename (appending `-')
        - history_do_write: when overwriting the history file, back it up
          before writing.  Restore backup file on a write error.  Suggested
          by chkno@chkno.net

bashline.c
        - find_cmd_name: two new arguments, return the start and end of the
          actual text string used to find the command name, without taking
          whitespace into account
        - attempt_shell_completion: small changes to make sure that completion
          attempted at the beginning of a non-empty line does not find a
          programmable completion, even if the command name starts at point
        - attempt_shell_completion: small change to make sure that completion
          does not find a progcomp when in whitespace before the command
          name
        - attempt_shell_completion: small change to make sure that completion
          does not find a progcomp when point is at the first character of a
          command name, even when there is leading whitespace (similar to
          above).  Fixes problems noted by Ville Skytta <ville.skytta@iki.fi>

subst.c
        - brace_expand_word_list: since the individual strings in the strvec
          returned by brace_expand are already allocated, don't copy them to
          newly-allocated memory when building the WORD_LIST, just use them
          intact

locale.c
        - locale_mb_cur_max: cache value of MB_CUR_MAX when we set or change
          the locale to avoid a function call every time we need to read it

shell.h
        - new struct to save shell_input_line and associated variables:
          shell_input_line_state_t
        - add members of sh_parser_state_t to save and restore token and the
          size of the token buffer

parse.y
        - {save,restore}_input_line_state: new functions to save and restore
          shell_input_line and associated variables
        - {save,restore}_parser_state: add code to save and restore the token
          and token buffer size
        - xparse_dolparen: call save_ and restore_input_line_state to avoid
          problems with overwriting shell_input_line when we recursively
          call the parser to parse a command substitution.  Fixes bug
          reported by Rui Santos <rsantos@grupopie.com>

include/shmbutil.h
        - use locale_mb_cur_max instead of MB_CUR_MAX in ADVANCE_CHAR and
          similar macros

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 glob_asciirange is non-zero, we use straight
          C-locale-like ordering. Suggested by  Aharon Robbins
          <arnold@skeeve.com>

                                   6/30
                                   ----
execute_cmd.c
        - execute_pipeline: make sure the lastpipe code is protected by
          #ifdef JOB_CONTROL.  Fixes problem reported by Thomas Cort
          <tcort@minix3.org>

                                    7/2
                                    ---
lib/readline/complete.c
        - EXPERIMENTAL: remove setting of _rl_interrupt_immediately around
          completion functions that touch the file system.  Idea from Jan
          Kratochvil <jan.ktratochvil@redhat.com> and the GDB development
          team

lib/readline/signals.c
        - rl_signal_handler: if we're in callback mode, don't interrupt
          immediately on a SIGWINCH

                                    7/3
                                    ---
bashline.c
        - set_directory_hook: and its siblings are a new set of functions to
          set, save, and restore the appropriate directory completion hook
        - change callers to use {set,save,restore}_directory_hook instead of
          manipulating rl_directory_rewrite_hook directly
        - dircomplete_expand: new variable, defaults to 0, if non-zero causes
          directory names to be word-expanded during word and filename
          completion
        - change {set,save,restore}_directory_hook to look at dircomplete_expand
          and change rl_directory_completion_hook or rl_directory_rewrite_hook
          appropriately

bashline.h
        - extern declaration for set_directory_hook so shopt code can use it

                                    7/6
                                    ---
builtins/shopt.def
        - globasciiranges: new settable shopt option, makes glob ranges act
          as if in the C locale (so b no longer comes between A and B).
          Suggested by Aharon Robbins <arnold@skeeve.com>

                                    7/7
                                    ---
doc/{bash.1,bashref.texi}
        - document new `globasciiranges' shopt option

                                    7/8
                                    ---
builtins/shopt.def
        - direxpand: new settable option, makes filename completion expand
          variables in directory names like bash-4.1 did.
        - shopt_set_complete_direxpand: new function, does the work for the
          above by calling set_directory_hook

doc/{bash.1,bashref.texi}
        - document new `direxpand' shopt option

                                   7/15
                                   ----
lib/readline/isearch.c
        - _rl_isearch_dispatch: when adding character to search string, use
          cxt->lastc (which we use in the switch statement) instead of c,
          since lastc can be modified earlier in the function

                                   7/18
                                   ----
lib/readline/rlprivate.h
        - _rl_search_context: add another member to save previous value of
          (multibyte) lastc: pmb is to mb as prevc is to lastc

lib/readline/isearch.c:
        - _rl_isearch_dispatch: if a key sequence indexes into a new keymap,
          but doesn't find any bound function (k[ind].function == 0) or is
          bound to self-insert (k[ind].function == rl_insert), back up and
          insert the previous character (the one that caused the index into a
          new keymap) and arrange things so the current character is the next
          one read, so both of them end up in the search string.  Fixes bug
          reported by Clark Wang <dearvoid@gmail.com>
        - _rl_isearch_dispatch: a couple of efficiency improvements when adding
          characters to the isearch string

                                   7/24
                                   ----
lib/readline/isearch.c
        - _rl_isearch_dispatch: save and restore cxt->mb and cxt->pmb
          appropriately when in a multibyte locale

doc/{bash.1,bashref.texi}
        - correct description of {x}>file (and other redirection operators
          that allocate a file descriptor) to note the the fd range is
          greater than or equal to 10.  Fixes problem reported by
          Christian Ullrich 

lib/readline/signals.c
        - rl_signal_handler: don't interrupt immediately if in callback mode

lib/readline/callback.c
        - rl_callback_read_char: install signal handlers only when readline
          has control in callback mode, so readline's signal handlers aren't
          called when the application is active (e.g., between the calls to
          rl_callback_handler_install and rl_callback_read_char).  If the
          readline signal handlers only set a flag, which the application
          doesn't know about, the signals will effectively be ignored until
          the next time the application calls into the readline callback
          interface.  Fixes problem of calling unsafe functions from signal
          handlers when in callback mode reported by Jan Kratochvil
          <jan.kratochvil@redhat.com>

execute_cmd.c
        - fix_assignment_words: when in Posix mode, the `command' builtin
          doesn't change whether or not the command name it protects is an
          assignment builtin.  One or more instances of `command'
          preceding `export', for instance, doesn't make `export' treat its
          assignment statement arguments differently.  Posix interpretation
          #351

doc/{bash.1,bashref.texi}
        - document new Posix-mode behavior of `command' when preceding builtins
          that take assignment statements as arguments

builtins/printf.def
        - printstr: if fieldwidth or precision are < 0 or > INT_MAX when
          supplied explicitly (since we take care of the `-' separately),
          clamp at INT_MAX like when using getint().  Fixes issue reported
          by Ralph Coredroy <ralph@inputplus.co.uk>

                                   7/25
                                   ----
lib/readline/chardefs.h
        - isxdigit: don't define if compiling with c++; declared as a c++
          template function.  Fixes bug reported by Miroslav Lichvar
          <mlichvar@redhat.com>

builtins/printf.def
        - getint: if garglist == 0, return whatever getintmax returns (0).
          Fixes bug reported  by Ralph Coredroy <ralph@inputplus.co.uk>

                                   7/28
                                   ----
doc/{bash.1,bashref.texi}
        - minor changes to the descriptions of the cd and pushd builtins

lib/sh/zread.c
        - zsyncfd: change variable holding return value from lseek to
          off_t.  Bug report and fix from Gregory Margo <gmargo@pacbell.net>

                                    8/1
                                    ---
expr.c
        - don't check for division by 0 when in a context where no evaluation
          is taking place.  Fixes bug reported by dnade.ext@orange-ftgroup.com

                                    8/6
                                    ---
execute_cmd.c
        - execute_command_internal: the parent branch of the subshell code
          (where the child calls execute_in_subshell) should not close all
          open FIFOs with unlink_fifo_list if it's part of a shell function
          that's still executing.  Fixes bug reported by Maarten Billemont
          <lhunath@lyndir.com>

                                    8/9
                                    ---
builtins/common.c
        - get_exitstat: return EX_BADUSAGE (2) on a non-numeric argument

builtins/return.def
        - return_builtin: just call get_exitstat to get the return status,
          let it handle proper parsing and handling of arguments.  Fixes
          issue most recently raised by Linda Walsh <bash@tlinx.org>.
          Reverses change from 9/11/2008 (see above)

                                   8/16
                                   ----
doc/{bash.1,bashref.texi}
        - clean up `set -e' language to make it clearer that any failure of
          a compound command will cause the shell to exit, not just subshells
          and brace commands

                                   8/17
                                   ----
configure.in
        - make the various XXX_FOR_BUILD variables `precious' to autoconf to
          avoid stale data
        - change how CC_FOR_BUILD is initialized when cross-compiling and not,
          but do not change behavior
        - initialize CFLAGS_FOR_BUILD to -g when cross-compiling
        - initialize LIBS_FOR_BUILD to $(LIBS) when not cross-compiling, empty
          when cross-compiling
        - create AUTO_CFLAGS variable to hold basic CFLAGS defaults; used when
          CFLAGS not inherited from environment (like effect of old
          auto_cflags variable)
        - substitute LIBS_FOR_BUILD into output Makefiles
          [changes inspired by bug report from Nathan Phillip Brink
          <ohnobinki@ohnopublishing.net> -- gentoo bug 378941]

builtins/Makefile.in    
        - substitute LIBS_FOR_BUILD from configure, not strictly initialized
          to $(LIBS)

                                   8/27
                                   ----
doc/{bash.1,bashref.texi}
        - minor changes to the here string description to clarify the
          expansions performed on the word

support/shobj-conf
        - handle compilation on Lion (Mac OS X 10.7/darwin11) with changes
          to darwin stanzas.  Fixes readline bug reported by Vincent
          Sheffer <vince.sheffer@apisphere.com>

lib/sh/strtrans.c
        - ansic_wshouldquote: check a string with multi-byte characters for
          characters that needs to be backslash-octal escaped for $'...'
        - ansic_shouldquote: if is_basic fails for one character, let
          ansic_wshouldquote examine the rest of the string and return what
          it returns.  From a patch sent by Roman Rakus <rrakus@redhat.com>

                                   8/30
                                   ----
lib/sh/strtrans.c
        - ansic_quote: changes to quote (or not) multibyte characters.  New
          code converts them to wide characters and uses iswprint to check
          valid wide chars.  From a patch sent by Roman Rakus
          <rrakus@redhat.com>

                                    9/7
                                    ---
lib/sh/shquote.c
        - sh_backslash_quote: change to be table-driven so we can use a
          different table if we want to
        - sh_backslash_quote: takes a second char table[256] argument;

externs.h
        - sh_backslash_quote: add second argument to function prototype

bashline.c,braces.c,parse.y,builtins/printf.def
        - change callers of sh_backslash_quote to add second argument

bashline.c
        - filename_bstab: table of characters to pass to sh_backslash_quote;
          characters with value 1 will be backslash-quoted
        - set_filename_bstab: turn on characters in filename backslash-quote
          table according to passed string argument
        - call set_filename_bstab every time rl_filename_quote_characters is
          assigned a value
        - bash_quote_filename: call sh_backslash_quote with filename_bstab
          as second argument.  This allows other characters in filenames to
          be quoted without quoting, for instance, a dollar sign in a shell
          variable reference

                                    9/8
                                    ---
bashline.c
        - complete_fullquote: new variable, controls table passed to
          sh_backslash_quote.  If non-zero (the default), the standard set
          of shell metacharacters -- as in bash versions up to and including
          bash-4.2 -- gets backslash-quoted by the completion code.  If zero,
          sh_backslash_quote gets the table with the characters in the
          variable reference removed, which means they are removed from the
          set of characters to be quoted in filenames

                                   9/10
                                   ----
bashline.c
        - bash_filename_stat_hook: new function, designed to expand variable
          references in filenames before readline passes them to stat(2)
          to determine whether or not they are a directory

                                   9/15
                                   ----
builtins/declare.def
        - if assign_array_element fails due to a bad (or empty) subscript, mark
          it as an assignment error and don't attempt any further processing
          of that declaration.  Fixes segfault bug reported by Diego Augusto
          Molina <diegoaugustomolina@gmail.com>

                                   9/19
                                   ----
expr.c
        - exppower: replace the simple exponentiation algorithm with an
          implementation of exponentiation by squaring.  Inspired by report
          from Nicolas ARGYROU <nargy@yahoo.com>

bashline.c
        - bash_quote_filename: check for rtext being non-null before
          dereferencing it
        - set_saved_history: operate_and_get_next assumes that the previous
          line was added to the history, even when the history is stifled and
          at the max number of entries.  If it wasn't, make sure the history
          number is incremented properly.  Partial fix for bug reported by
          gregrwm <backuppc-users@whitleymott.net>

doc/{bash.1,bashref.texi},lib/readline/doc/{hsuser,rluser}.texi
        - minor editorial changes inspired by suggestions from
          Roger Zauner <rogerx.oss@gmail.com>

                                   9/20
                                   ----
lib/intl/localealias.c
        - read_alias_file: close resource leak (fp) when returning on error

                                   9/22
                                   ----
execute_command.c
        - execute_intern_function: implement Posix interpretation 383 by making
          it an error to define a function with the same name as a special
          builtin when in Posix mode.
          http://austingroupbugs.net/view.php?id=383#c692

                                   9/25
                                   ----
doc/{bash.1,bashref.texi}
        - formatting and some content changes from Benno Schulenberg
          <bensberg@justemail.net>
        - document new posix-mode behavior from interp 383 change of 9/22

                                   9/30
                                   ----
execute_cmd.c
        - shell_execve: add strerror to error message about executable file
          that shell can't execute as a shell script.  From suggestion by
          daysleeper <daysleeper@centrum.cz>

                                   10/1
                                   ----
bashhist.c
        - maybe_add_history: act as if literal_history is set when parser_state
          includes PST_HEREDOC, so we save the bodies of here-documents just
          as they were entered.  Fixes bug reported by Jonathan Wakely
          <bugs@kayari.org>
        - bash_add_history: make sure that the second and subsequent lines of
          a here document don't have extra newlines or other delimiting
          chars added, since they have the trailing newline preserved, when
          `lithist' is set and history_delimiting_chars isn't called

execute_cmd.c
        - execute_command_internal: avoid fd exhaustion caused by using
          process substitution in loops inside shell functions by using
          copy_fifo_list and close_new_fifos ().  Fixes debian bash bug
          642504

lib/readline/complete.c
        - new variable, rl_filename_stat_hook, used by append_to_match.  If
          filename completion is desired, and rl_filename_stat_hook points
          to a function, call that function to expand the filename in an
          application-specific way before calling stat.

bashline.c
        - bash_default_completion: if variable completion returns a single
          match, use bash_filename_stat_hook and file_isdir to determine
          whether or not the variable name expands to a directory.  If it
          does, set the filename_append_character to `/'.  This is not
          perfect, so we will see how it works out.  Adds functionality
          requested by Peter Toft <pto@linuxbog.dk> and Patrick Pfeifer
          <patrick@pfeifer.de>
        - rl_filename_stat_hook: assigned bash_filename_stat_hook, so things
          like $HOME/Downloads (after completion) have a slash appended.
          In general, this causes the stat hook to be called whenever
          filename completion is appended.  Adds functionality requested by
          Patrick Pfeifer <patrick@pfeifer.de>

lib/readline/readline.h
        - new extern declaration for rl_filename_stat_hook

lib/readline/doc/rltech.texi
        - rl_directory_rewrite_hook: now documented
        - rl_filename_stat_hook: document

pcomplete.c
        - gen_action_completions: in the CA_DIRECTORY case, turn off
          rl_filename_completion_desired if it was off before we called
          rl_filename_completion_function and we didn't get any matches.
          Having it on causes readline to quote the matches as if they
          were filenames.  Adds functionality requested by many,
          including Clark Wang <dearvoid@gmail.com>

assoc.[ch]
        - assoc_replace: new function, takes the same arguments as
          assoc_insert, but returns the old data instead of freeing it
        - assoc_insert: if the object returned by hash_insert doesn't have
          the same value for its key as the key passed as an argument, we
          are overwriting an existing value.  In this case, we can free the
          key.  Fixes bug reported by David Parks <davidparks21@yahoo.com>

                                   10/5
                                   ----
print_cmd.c
        - indirection_level_string: small change to only re-enable `x'
          option after calling decode_prompt_string if it was on before.  In
          normal mode, it will be, but John Reiser <jreiser@bitwagon.com>
          has a novel use for that code in conjunction with a pre-loaded
          shared library that traces system call usage in shell scripts

                                   10/10
                                   -----
Makefile.in
        - Fix from Mike Frysinger <vapier@gentoo.org> to avoid trying to
          build y.tab.c and y.tab.h with two separate runs of yacc if
          parse.y changes.  Problem with parallel makes
        - Fix from Mike Frysinger <vapier@gentoo.org> to avoid subdirectory
          builds each trying to make version.h (and all its dependencies)

lib/sh/Makefile.in
        - remove some dependencies on version.h where it doesn't make sense

variables.c
        - initialize_shell_variables: while reading the environment, a shell
          running in posix mode now checks for SHELLOPTS being readonly (it
          gets set early on in main()) before trying to assign to it.  It
          saves an error message and the variable gets parsed as it should.
          Fixes bug reported by Len Giambrone <Len.Giambrone@intersystems.com>

                                   10/14
                                   -----
doc/{bash.1,bashref.texi}
        - add to the "duplicating file descriptors" description that >&word
          doesn't redirect stdout and stderr if word expands to `-'
        - add to the "appending standard output and standard error"
          description a note that >&word, where word is a number or `-',
          causes other redirection operators to apply for sh and Posix
          compatibility reasons.  Suggested by Greg Wooledge
          <wooledg@eeg.ccf.org>

                                   10/15
                                   -----
pcomplete.c
        - change pcomp_filename_completion_function to only run the filename
          dequoting function in the cases (as best as it can figure) where
          readline won't do it via rl_filename_completion_function.  Based
          on reports from <lolilolicon@gmail.com>

                                   10/19
                                   -----
bashline.c
        - attempt_shell_completion: add call to set_directory_hook() to make
          sure the rewrite functions are correct.  It's cheap and doesn't
          hurt
        - command_word_completion_function: if completing a command name that
          starts with `.' or `..', temporarily suppress the effects of the
          `direxpand' option and restore the correct value after calling
          rl_filename_completion_function.  If it's enabled, the directory
          name will be rewritten and no longer match `./' or `../'.  Fixes
          problem reported by Michael Kalisz <michael@kalisz.homelinux.net>

                                   10/22
                                   -----
builtins/history.def
        - push_history: make sure remember_on_history is enabled before we
          try to delete the last history entry -- the `history -s' command
          might not have been saved.  Fixes bug reported by
          lester@vmw-les.eng.vmware.com

lib/readline/complete.c
        - rl_callback_read_char: add calls to a macro CALLBACK_READ_RETURN
          instead of straight return; add same call at end of function.
          Placeholder for future work in deinstalling signal handlers when
          readline is not active

                                   10/25
                                   -----
expr.c
        - exp2: catch arithmetic overflow when val1 == INTMAX_MIN and val2 == -1
          for DIV and MOD and avoid SIGFPE.  Bug report and pointer to fix
          from Jaak Ristioja <jaak.ristioja@cyber.ee>
        - expassign: same changes for arithmetic overflow for DIV and MOD

                                   10/28
                                   -----
subst.c
        - parameter_brace_expand: allow pattern substitution when there is an
          expansion of the form ${var/} as a no-op: replacing nothing with
          nothing
        - parameter_brace_patsub: don't need to check for PATSUB being NULL;
          it never is

flags.c
        - if STRICT_POSIX is defined, initialize history_expansion to 0, since
          history expansion (and its treatment of ! within double quotes) is
          not a conforming posix environment.  From austin-group issue 500

lib/readline/histexpand.c
        - history_expand: when processing a string within double quotes
          (DQUOTE == 1), make the closing double quote inhibit history
          expansion, as if the word were outside double quotes.  In effect,
          we assume that the double quote is followed by a character in
          history_no_expand_chars.  tcsh and csh seem to do this.  This
          answers a persistent complaint about history expansion

                                   10/29
                                   -----
make_cmd.c
        - make_arith_for_command: use skip_to_delim to find the next `;'
          when breaking the string between the double parens into three
          separate components instead of a simple character loop.  Fixes
          bug reported by Dan Douglas <ormaaj@gmail.com>

                                   11/2
                                   ----
Makefile.in
        - make libbuiltins.a depend on builtext.h to serialize its creation
          and avoid conflict between multiple invocations of mkbuiltins.
          Fix from Mike Frysinger <vapier@gentoo.org>

                                   11/5
                                   ----
findcmd.c
        - user_command_matches: if stat(".", ...) returns -1, set st_dev
          and st_ino fields in dotinfo to 0 to avoid same_file matches
        - find_user_command_in_path: check stat(2) return the same way

lib/glob/glob.c
        - glob_vector: don't call strlen(pat) without checking pat == 0
        - glob_dir_to_array: make sure to free `result' and all allocated
          members before returning error due to malloc failure
        - glob_vector: make sure to free `nextname' and `npat' on errors
          (mostly when setting lose = 1)
        - glob_vector: if flags & GX_MATCHDIRS but not GX_ALLDIRS, make
          sure we free `subdir'
        - glob_filename: when expanding ** (GX_ALLDIRS), make sure we
          free temp_results (return value from glob_vector)

lib/glob/xmbsrtowcs.c
        - xdupmbstowcs: fix call to realloc to use sizeof (char *) instead
          of sizeof (char **) when assigning idxtmp

execute_cmd.c
        - print_index_and_element: return 0 right away if L == 0
        - is_dirname: fix memory leak by freeing `temp'
        - time_command: don't try to deref NULL `command' when assigning
          to `posix_time'
        - shell_execve: null-terminate `sample' after READ_SAMPLE_BUF so it's
          terminated for functions that expect that

builtins/read.def
        - read_builtin: don't call bind_read_variable with a potentially-null
          string

pcomplete.c
        - gen_command_matches: don't call dispose_word_desc with a NULL arg
        - gen_compspec_completions: fix memory leak by freeing `ret' before
          calling gen_action_completions (tcs, ...).  happens when
          performing directory completion as default and no completions
          have been generated
        - gen_progcomp_completions: make sure to set foundp to 0 whenever
          returning NULL
        - it_init_aliases: fix memory leak by freeing alias_list before
          returning

bashline.c
        - command_word_completion_function: don't call restore_tilde with a
          NULL directory_part argument
        - bash_directory_expansion: bugfix: don't throw away results of
          rl_directory_rewrite_hook if it's set and returns non-zero
        - bind_keyseq_to_unix_command: free `kseq' before returning error

arrayfunc.c
        - assign_array_element_internal: make sure `akey' is freed if non-null
          before returning error
        - assign_compound_array_list: free `akey' before returning error
        - array_value_internal: free `akey' before returning error
        - unbind_array_element: free `akey' before returning error

subst.c
        - array_length_reference: free `akey' before returning error in case
          of expand_assignment_string_to_string error
        - array_length_reference: free `akey' after call to assoc_reference
        - skip_to_delim: if skipping process and command substitution, free
          return value from extract_process_subst
        - parameter_brace_substring: free `val' (vtype == VT_VARIABLE) before
          returning if verify_substring_values fails
        - parameter_brace_expand: remove two duplicate lines that allocate
          ret in parameter_brace_substring case
        - parameter_brace_expand: convert `free (name); name = xmalloc (...)'
          to use `xrealloc (name, ...)'
        - parameter_brace_expand: free `name' before returning when handling
          ${!PREFIX*} expansion
        - split_at_delims: fix memory leak by freeing `d2' before returning

redir.c
        - redirection_error: free `filename' if the redirection operator is
          REDIR_VARASSIGN by assigning allocname

eval.c
        - send_pwd_to_eterm: fix memory leak by freeing value returned by
          get_working_directory()

builtins/cd.def
        - change_to_directory: fix memory leak by freeing return value from
          resetpwd()
        - cd_builtin: fix memory leak by freeing value returned by dirspell()
        - cd_builtin: fix memory leak by freeing `directory' if appropriate
          before overwriting with return value from resetpwd()

builtins/type.def
        - describe_command: free `full_path' before overwriting it with return
          value from sh_makepath

builtins/complete.def
        - compgen_builtin: fix memory leak by calling strlist_dispose (sl)
          before overwriting sl with return value from completions_to_stringlist

builtins/hash.def
        - list_hashed_filename_targets: fix memory leak by freeing `target'

make_cmd.c
        - make_arith_for_command: free `init', `test', and `step' before
          returning error on parse error

jobs.c
        - initialize_job_control: don't call move_to_high_fd if shell_tty == -1

general.c
        - check_dev_tty: don't call close with an fd < 0
        - legal_number: deal with NULL `string' argument, return invalid

lib/sh/fmtulong.c
        - fmtulong: if the `base' argument is invalid, make sure we index
          buf by `len-1' at maximum

print_cmd.c
        - print_deferred_heredocs: don't try to dereference a NULL `cstring'
        - cprintf: make sure to call va_end (args)

variables.c
        - push_dollar_vars: fix call to xrealloc to use sizeof (WORD_LIST *)
          instead of sizeof (WORD_LIST **)

lib/sh/zmapfd.c
        - zmapfd: if read returns error, free result and return -1 immediately
          instead of trying to reallocate it

                                   11/6
                                   ----
execute_cmd.c
        - cpl_reap: rewrote to avoid using pointer after freeing it; now builds
          new coproc list on the fly while traversing the old one and sets the
          right values for coproc_list when done

                                   11/12
                                   -----
builtins/set.def
        - if neither -f nor -v supplied, don't allow a readonly function to
          be implicitly unset.  Fixes bug reported by Jens Schmidt
          <jens.schmidt35@arcor.de>

lib/readline/callback.c
        - change CALLBACK_READ_RETURN to clear signal handlers before returning
          from rl_callback_read_char so readline's signal handlers aren't
          installed when readline doesn't have control.  Idea from Jan
          Kratochvil <jan.ktratochvil@redhat.com> and the GDB development
          team

pcomplete.h
        - COPT_NOQUOTE: new complete/compgen option value

builtins/complete.def
        - noquote: new complete/compgen option; will be used to disable
          filename completion quoting

pcomplete.c
        - pcomp_set_readline_variables: pay attention to COPT_NOQUOTE; turns
          of rl_filename_quoting_desired if set; turns it on if unset (value
          is inverted, since default is on)

doc/bash.1,lib/readline/doc/rluser.texi
        - document new -o noquote option to complete/compgen/compopt

pathexp.c
        - quote_string_for_globbing: if QGLOB_REGEXP, make sure characters
          between brackets in an ERE bracket expression are not inappropriately
          quoted with backslashes.  This is a pretty substantial change,
          should be stressed when opening bash up for alpha and beta tests.
          Fixes bug pointed out by Stephane Chazleas
          <stephane_chazelas@yahoo.fr>

doc/{bash.1,bashref.texi}
        - document that regexp matches can be inconsistent when quoting
          characters in bracket expressions, since usual quoting characters
          lose their meaning within brackets
        - note that regular expression matching when the pattern is stored
          in a shell variable which is quoted for expansion causes string
          matching

redir.h
        - RX_SAVEFD: new flag value; notes that a redirection denotes an
          fd used to save another even if it's not >= SHELL_FD_BASE

redir.c
        - do_redirection_internal: when deciding whether or not to reset the
          close-on-exec flag on a restored file descriptor, trust the value
          of redirect->flags & RX_SAVCLEXEC even if the fd is < SHELL_FD_BASE
          if the RX_SAVEFD flag is set
        - add_undo_redirect: set the RX_SAVEFD flag if the file descriptor
          limit is such that the shell can't duplicate to a file descriptor
          >= 10.  Fixes a limitation that tripped a coreutils test reported
          by Paul Eggert <eggert@cs.ucla.edu>

                                   11/19
                                   -----
doc/{bash.1,bashref.texi},lib/readline/doc/hsuser.texi
        - make it clear that bash runs HISTFILESIZE=$HISTSIZE after reading
          the startup files
        - make it clear that bash runs HISTSIZE=500 after reading the
          startup files
        - make it clear that setting HISTSIZE=0 causes commands to not be
          saved in the history list
        - make it clear that setting HISTFILESIZE=0 causes the history file
          to be truncated to zero size

variables.c
        - sv_histsize: change so setting HISTSIZE to a value less than 0
          causes the history to be `unstifled'
        - sv_histsize: change so setting HISTFILESIZE to a value less than 0
          results in no file truncation
        - make it clear that numeric values less than 0 for HISTFILESIZE or
          HISTSIZE inhibit the usual functions

                                   11/23
                                   -----
parse.y
        - save_input_line_state: add missing `return ls' at the end, since the
          function is supposed to return its argument.  Pointed out by
          Andreas Schwab <schwab@linux-m68k.org>

builtins/read.def
        - skip over NUL bytes in input, as most modern shells seem to.  Bug
          report by Matthew Story <matt@tablethotels.com>

lib/readline/vi_mode.c
        - rl_vi_replace: set _rl_vi_last_key_before_insert to invoking key

                                   11/25
                                   -----
builtins/read.def
        - read_builtin: if xrealloc returns same pointer as first argument,
          don't bother with the remove_unwind_protect/add_unwind_protect pair
        - read_builtin: set a flag (`reading') around calls to zread/zreadc
          and readline()
        - sigalrm: change to set flag (`sigalrm_seen') and only longjmp if
          currently in read(2) (reading != 0)
        - CHECK_ALRM: new macro, checks sigalrm_seen and longjmps if non-zero,
          behavior of old SIGALRM catching function
        - read_builtin: call CHECK_ALRM in appropriate places while reading
          line of input.  Fixes bug reported by Pierre Gaston
          <pierre.gaston@gmail.com>

lib/readline/vi_mode.c
        - rl_vi_replace: initialize characters before printing characters in
          vi_replace_keymap to their default values in vi_insertion_keymap,
          since we're supposed to be in insert mode replacing characters
        - rl_vi_replace: call rl_vi_start_inserting to set last command to
          `R' for undo
        - rl_vi_replace: set _rl_vi_last_key_before_insert to `R' for future
          use by _rl_vi_done_inserting
        - vi_save_insert_buffer: new function, broke out code that copies text
          into vi_insert_buffer from _rl_vi_save_insert
        - _rl_vi_save_replace: new function, saves text modified by
          rl_vi_replace (using current point and vi_replace_count to figure
          it out) to vi_replace_buffer
        - _rl_vi_save_insert: call vi_save_insert_buffer
        - _rl_vi_done_inserting: if _rl_vi_last_key_before_insert == 'R', call
          _rl_vi_save_replace to save text modified in replace mode (uses
          vi_save_insert_buffer)
        - _rl_vi_replace_insert: new function, replaces the number of chars
          in vi_insert_buffer after rl_point with contents ov vi_insert_buffer
        - rl_vi_redo: call _rl_vi_replace_insert if last command == 'R' and
          there's something in vi_insert_buffer.  Fixes bug with `.' not
          redoing the most recent `R' command, reported by Geoff Clare
          <g.clare@opengroup.org> in readline area on savannah

                                   11/26
                                   -----
lib/readline/rlprivate.h
        - RL_SIG_RECEIVED(): evaluate to non-zero if there is a pending signal
          to be handled
        - RL_SIGINT_RECEIVED(): evaluate to non-zero if there is a pending
          SIGINT to be handled

lib/readline/complete.c
        - remove all mention of _rl_interrupt_immediately
        - rl_completion_matches: check RL_SIG_RECEIVED after each call to
          the entry function, call RL_CHECK_SIGNALS if true to handle the
          signal
        - rl_completion_matches: if RL_SIG_RECEIVED evaluates to true, free
          and zero out the match_list this function allocated
        - rl_completion_matches: if the completion entry function is
          rl_filename_completion_function, free the contents of match_list,
          because that function does not keep state and will not free the
          entries; avoids possible memory leak pointed out by
          Garrett Cooper <yanegomi@gmail.com>
        - gen_completion_matches: if RL_SIG_RECEIVED evalutes to true after
          calling rl_attempted_completion_function, free the returned match
          list and handle the signal with RL_CHECK_SIGNALS; avoids
          possible memory leak pointed out by Garrett Cooper
          <yanegomi@gmail.com>
        - gen_completion_matches: if RL_SIG_RECEIVED evaluates to true after
          calling rl_completion_matches, free the returned match list and
          handle the signal with RL_CHECK_SIGNALS

lib/readline/util.c
        - rl_settracefp: new utility function to set the tracing FILE *

lib/readline/signals.c
        - _rl_sigcleanup: pointer to a function that will be called with the
          signal and a void * argument from _rl_handle_signal
        - _rl_sigcleanarg: void * that the rest of the code can set to have
          passed to the signal cleanup function
        - _rl_handle_signal: if _rl_sigcleanup set, call as
                (*_rl_sigcleanup) (sig, _rl_sigcleanarg)

lib/readline/rlprivate.h
        - extern declarations for _rl_sigcleanup and _rl_sigcleanarg

lib/readline/complete.c
        - _rl_complete_sigcleanup: signal cleanup function for completion code;
          calls _rl_free_match_list on _rl_sigcleanarg if signal == SIGINT
        - rl_complete_internal: before calling display_matches if what_to_do
          == `?', set _rl_sigcleanup to _rl_complete_sigcleanup so the match
          list gets freed on SIGINT; avoids possible memory leak pointed out
          by Garrett Cooper <yanegomi@gmail.com>
        - rl_complete_internal: in default switch case, call _rl_free_match_list
          before returning to avoid memory leak

doc/bashref.texi
        - start at a set of examples for the =~ regular expression matching
          operator, touching on keeping the pattern in a shell variable and
          quoting portions of the pattern to remove their special meaning

                                   12/1
                                   ----
lib/glob/gmisc.c
        - extglob_pattern: new function, returns 1 if pattern passed as an
          argument looks like an extended globbing pattern

lib/glob/glob.c
        - skipname: return 0 immediately if extglob_pattern returns non-zero,
          let the extended globbing code do the right thing with skipping
          names beginning with a `.'
        - mbskipname: return 0 immediately if extglob_pattern returns non-zero,
          let the extended globbing code do the right thing with skipping
          names beginning with a `.'.  Fixes bug reported by Yongzhi Pan
          <panyongzhi@gmail.com>

                                   12/2
                                   ----
lib/glob/smatch.c
        - patscan, patscan_wc: no longer static so other parts of the glob
          library can use them, renamed to glob_patscan, glob_patscan_wc

lib/glob/glob.c
        - extern declarations for glob_patscan, glob_patscan_wc
        - wchkname: new function, does skipname on wchar_t pattern and dname,
          old body of mbskipname after converting to wide chars
        - extglob_skipname: new function, checks all subpatterns in an extglob
          pattern to determine whether or not a filename should be skipped.
          Calls skipname for each subpattern.  Dname is only skipped if all
          subpatterns indicate it should be.  Better fix for bug reported by
          Yongzhi Pan <panyongzhi@gmail.com>
        - wextglob_skipname: wide-char version of extglob_skipname, calls
          wchkname instead of calling back into mbskipname for each
          subpattern to avoid problems with char/wchar_t mismatch
        - skipname: call extglob_skipname if extglob_pattern returns non-zero
        - mbskipname: call wextglob_skipname if extglob_pattern returns non-zero
        - mbskipname: short-circuit immediately if no multibyte chars in
          pattern or filename

execute_cmd.c
        - execute_cond_node: added parens to patmatch assignment statement to
          make intent clearer

                                   12/3
                                   ----
configure.in,config.h.in
        - check for imaxdiv, define HAVE_IMAXDIV if present

expr.c
        - expassign, exp2: use imaxdiv if available.  Doesn't help with checks
          for overflow from 10/25

                                   12/6
                                   ----
lib/readline/complete.c
        - compute_lcd_of_matches: if we're ignoring case in the matches, only
          use what the user typed as the lcd if it matches the first match
          (after sorting) up to the length of what was typed (if what the
          user typed is longer than the shortest of the possible matches, use
          the shortest common length of the matches instead).  If it doesn't
          match, use the first of the list of matches, as if case were not
          being ignored.  Fixes bug reported by Clark Wang
          <dearvoid@gmail.com>

                                   12/7
                                   ----
builtins/cd.def
        - cd_builtin: add code to return error in case cd has more than one
          non-option argument, conditional on CD_COMPLAINS define (which is
          not defined anywhere)

doc/{bash.1,bashref.texi}
        - note that additional arguments to cd following the directory name
          are ignored.  Suggested by Vaclav Hanzl <hanzl@noel.feld.cvut.cz>

                                   12/10
                                   -----
lib/readline/input.c
        - rl_read_key: don't need to increment key sequence length here; doing
          it leads to an off-by-one error

lib/readline/macro.c
        - rl_end_kbd_macro: after off-by-one error with rl_key_sequence_length
          fixed, can decrement current_macro_index by rl_key_sequence_length
          (length of key sequence that closes keyboard macro)

lib/readline/readline.c
        - _rl_dispatch_subseq: fix extra increment of rl_key_sequence_length
          when ESC maps to a new keymap and we're converting meta characters
          to ESC+key
        - _rl_dispatch_subseq: better increment of rl_key_sequence_length
          before we dispatch to a function in the ISFUNC case (where the
          second increment above should have happened)
        - rl_executing_keyseq: the full key sequence that ended up executing
          a readline command.  Available to the calling application, maintained
          by _rl_dispatch_subseq, indexed by rl_key_sequence_length
        - rl_executing_key: the key that was bound to the currently-executing
          readline command.  Same as the `key' argument to the function

lib/readline/readline.h
        - rl_executing_keyseq: extern declaration
        - rl_executing_key: extern declaration
        - rl_key_sequence_length: declaration moved here from rlprivate.h,
          now part of public interface

lib/readline/rlprivate.h
        - new extern declaration for _rl_executing_keyseq_size, buffer size
          for rl_executing_keyseq

lib/readline/doc/rltech.texi
        - documented new variables: rl_executing_key, rl_executing_keyseq,
          rl_key_sequence_length

                                   12/13
                                   -----
bashline.c
        - bash_execute_unix_command: replace ad-hoc code that searches
          cmd_xmap for correct command with call to rl_function_of_keyseq
          using rl_executing_keyseq; now supports key sequences longer
          than two characters.  Fixes bug reported by Michael Kazior
          <kazikcz@gmail.com>

                                   12/15
                                   -----
make_cmd.c
        - make_function_def: don't null out source_file before calling
          make_command so it can be used later on when the function definition
          is executed

execute_cmd.c
        - execute_intern_function: second argument is now FUNCTION_DEF *
          instead of COMMAND *
        - execute_command_internal: call execute_intern_function with the
          new second argument (the entire FUNCTION_DEF instead of just the
          command member)
        - execute_intern_function: if DEBUGGER is defined, call
          bind_function_def before calling bind_function, just like
          make_function_def does (might be able to take out the call in
          make_function_def depending on what the debugger does with it).
          Fixes bug reported by <dethrophes@motd005>

expr.c
        - more minor changes to cases of INTMAX_MIN % -1 and INTMAX_MIN / 1;
          fix typos and logic errors

                                   12/16
                                   -----
bashline.c
        - find_cmd_start: change flags to remove SD_NOSKIPCMD so it skips over
          command substitutions and doesn't treat them as command separators
        - attempt_shell_completion: instead of taking first return from
          find_cmd_name as command name to use for programmable completion,
          use loop to skip over assignment statements.  Fixes problem reported
          by Raphael Droz <raphael.droz+floss@gmail.com>
        - attempt_shell_completion: if we don't find a command name but the
          command line is non-empty, assume the other words are all assignment
          statements and flag that point is in a command position so we can
          do command name completion
        - attempt_shell_completion: if the word being completed is the first
          word following a series of assignment statements, and the
          command line is non-empty, flag that point is in a command position
          so we can do command name completion

lib/readline/history.c
        - history_get_time: atol -> strtol

                                   12/18
                                   -----
parse.y
        - parser_in_command_position: external interface to the
          command_token_position macro for use by other parts of the shell,
          like the completion mechanism

externs.h
        - extern declaration for parser_in_command_position

                                   12/19
                                   -----

builtins/read.def
        - read_builtin: make sure all calls to bind_read_variable are passed
          a non-null string.  Fixes bug reported by Dan Douglas
          <ormaaj@gmail.com>

bashline.c
        - attempt_shell_completion: mark that we're in a command position if
          we're at the start of the line and the parser is ready to accept
          a reserved word or command name.  Feature most recently suggested
          by Peng Yu <pengyu.ut@gmail.com>

                                   12/21
                                   -----
lib/readline/bind.c
        - _rl_escchar: return the character that would be backslash-escaped
          to denote the control character passed as an argument ('\n' -> 'n')
        - _rl_isescape: return 1 if character passed is one that has a
          backslash escape
        - _rl_untranslate_macro_value: new second argument: use_escapes, if
          non-zero translate to backslash escapes where possible instead of
          using straight \C-x for control character `x'.  Change callers
        - _rl_untranslate_macro_value: now global

lib/readline/rlprivate.h
        - _rl_untranslate_macro_value: extern declaration

lib/readline/{macro.c,readline.h}
        - rl_print_last_kbd_macro: new bindable function, inspired by patch
          from Mitchel Humpherys

lib/readline/funmap.c
        - print-last-kbd-macro: new bindable command, bound to
          rl_print_last_kbd_macro

lib/readline/doc/{rluser.texi,readline.3},doc/bash.1
        - print-last-kbd-macro: document.

lib/readline/text.c
        - _rl_insert_next: if we're defining a macro, make sure the key gets
          added to the macro text (should really audit calls to rl_read_key()
          and make sure the right thing is happening for all of them)

bashline.[ch]
        - print_unix_command_map: new function, prints all bound commands in
          cmd_xmap using rl_macro_dumper in a reusable format

builtins/bind.def
        - new -X option: print all keysequences bound to Unix commands using
          print_unix_command_map.  Feature suggested by Dennis Williamson
          (2/2011)

doc/{bash.1,bashref.texi}
        - document new `bind -X' option

                                   12/24
                                   -----

doc/{bash.1,bashref.texi}
        - add a couple of sentences to the description of the case modification
          operators making it clearer that each character of parameter is
          tested against the pattern, and that the pattern should only attempt
          to match a single character.  Suggested by Bill Gradwohl
          <bill@ycc.com>

                                   12/28
                                   -----
shell.c
        - init_noninteractive: instead of calling set_job_control(0) to
          unconditionally turn off job control, turn on job control if
          forced_interactive or jobs_m_flag is set
        - shell_initialize: call initialize_job_control with jobs_m_flag as
          argument so `bash -m script' enables job control while running the
          script

jobs.c
        - initialize_job_control: if the `force' argument is non-zero, turn on
          job control even if the shell is not currently interactive
          (interactive == 0)

                                   12/29
                                   -----

flags.h
        - new extern declaration for jobs_m_flag

builtins/{cd,set}.def,doc/{bash.1,bashref.texi}
        - added text clarifying the descriptions of cd -L and -P, suggested by
          Padraig Brady <p@draigbrady.com>
        - slight change to the description of `set -P' about resolving symbolic
          links

lib/readline/doc/rluser.texi
        - Added an example to the programmable completion section: _comp_cd,
          a completion function for cd, with additional verbiage.  Text
          includes a reference to the bash_completion project

                                 1/1/2012
                                 --------
jobs.c
        - set_job_status_and_cleanup: note that a job is stopped due to
          SIGTSTP (any_tstped) if job_control is set; there's no need to
          test interactive

                                    1/5
                                    ---
quit.h
        - LASTSIG(): new macro, expands to signal number of last terminating
          signal received (terminating_signal or SIGINT)

trap.c
        - first_pending_trap: returns lowest signal number with a trap pending
        - trapped_signal_received: set to the last trapped signal the shell
          received in trap_handler(); reset to 0 in run_pending_traps

builtins/read.def
        - read_builtin: changes to posix-mode (posixly_correct != 0) to make
          `read' interruptible by a trapped signal.  After the trap runs,
          read returns 128+sig and does not assign the partially-read line
          to the named variable(s).  From an austin-group discussion started
          by David Korn

                                   1/11
                                   ----
doc/{bash.1,bashref.texi}
        - slight changes to the descriptions of the compat32 and compat40 shell
          options to clarify their meaning

                                   1/12
                                   ----
lib/readline/{colors.[ch],parse-colors.[ch]}
        - new files, part of color infrastructure support

Makefile.in,lib/readline/Makefile.in
        - arrange to have colors.o and parse-colors.o added to readline
          library

{configure,config.h}.in
        - check for stdbool.h, define HAVE_STDBOOL_H if found

                                   1/14
                                   ----
lib/readline/bind.c
        - colored_stats: new bindable variable, enables using colors to
          indicate file type when listing completions

lib/readline/complete.c
        - _rl_colored_stats: new variable, controlled by colored-stats bindable
          variable
        - colored_stat_start, colored_stat_end: new functions to set and reset
          the terminal color appropriately depending on the type of the
          filename to be printed
        - print_filename: changes to print colors if `colored-stats' variable
          set.  Changes contributed by Raphael Droz
          <raphael.droz+floss@gmail.com>

lib/readline/readline.c
        - rl_initialize_everything: add call to _rl_parse_colors to parse
          color values out of $LS_COLORS.  May have to add to rl_initialize
          to make more dynamic if LS_COLORS changes (which doesn't happen
          very often, if at all)

lib/readline/rlprivate.h
        - _rl_colored_stats: new extern declaration

lib/readline/doc/{readline.3,rluser.texi},doc/bash.1
        - colored-stats: document new bindable readline variable

lib/readline/colors.c
        - _rl_print_color_indicator: call rl_filename_stat_hook before calling
          lstat/stat so we can get color indicators for stuff like
          $HOME/Applications

lib/readline/complete.c
        - stat_char: call rl_filename_stat_hook before calling lstat/stat

findcmd.[ch],execute_cmd.c
        - search_for_command: now takes a second `flags' argument; changed
          header function prototype and callers
        - search_for_command: if (flags & 1), put the command found in $PATH
          into the command hash table (previous default behavior)

execute_cmd.c
        - is_dirname: call search_for_command with flags argument of 0 so it
          doesn't try to put something in the command hash table

bashline.c
        - bash_command_name_stat_hook: a hook function for readline's
          filename_stat_hook that does $PATH searching the same way that
          execute_cmd.c:execute_disk_command() does it, and rewrites the
          passed filename if found.  Does not put names into command hash
          table.  This allows command name completion to take advantage
          of `visible-stats' and `colored-stats' settings.
        - executable_completion: new function, calls the directory completion
          hook to expand the filename before calling executable_file or
          executable_or_directory; change command_word_completion_function to
          call executable_completion.  This allows $HOME/bin/[TAB] to do
          command completion and display alternatives

                                   1/17
                                   ----
pcomplete.c
        - gen_command_matches: now takes a new second argument: the command
          name as deciphered by the programmable completion code and used
          to look up the compspec; changed callers (gen_compspec_completions)
        - gen_shell_function_matches: now takes a new second argument: the
          command that originally caused the completion function to be
          invoked; changed callers (gen_compspec_completions))
        - build_arg_list: now takes a new second argument: the command name
          corresponding to the current compspec; changed callers
          (gen_command_matches, gen_shell_function_matches)
        - build_arg_list: now uses `cmd' argument to create $1 passed to
          invoked command or shell function
        - gen_compspec_completions: if we skipped a null command at the
          beginning of the line (e.g., for completing `>'), add a new word for
          it at the beginning of the word list and increment nw and cw
          appropriately.  This is all a partial fix for the shortcoming
          pointed out by Sung Pae <sungpae@gmail.com>

                                   1/18
                                   ----

{configure,config.h}.in
        - new check: check for AUDIT_USER_TTY defined in <linux/audit.h>,
          define HAVE_DECL_AUDIT_USER_TTY if both are found

lib/readline/rlconf.h
        - ENABLE_TTY_AUDIT_SUPPORT: new define, allows use of the Linux kernel
          tty auditing system if it's available and enabled

lib/readline/util.c
        - _rl_audit_tty: new function, send a string to the kernel tty audit
          system

lib/readline/rlprivate.h
        - _rl_audit_tty: new extern declaration

lib/readline/readline.c
        - readline: call _rl_audit_tty with line to be returned before returning
          it if the Linux tty audit system is available and it's been enabled
          in rlconf.h  Original patch from Miroslav Trmac; recent request
          from Miroslav Lichvar <mlichvar@redhat.com>

                                   1/21
                                   ----

lib/readline/readline.c:
        - _rl_dispatch_subseq: add an inter-character timeout for multi-char
          key sequences.  Suggested by <rogerx.oss@gmail.com>.  Still needs
          work to make a user-settable variable

parse.y
        - shell_getc: make code that uses the pop_alias dependent on ALIAS
          define

variables.h
        - sv_tz: extern define should only depend on HAVE_TZSET

expr.c
        - expr_streval: if ARRAY_VARS is not defined, set lvalue->ind to -1;
          move assignment to `ind' inside define
        - expr_bind_array_element: declaration and uses need to be #ifdef
          ARRAY_VARS

arrayfunc.h
        - AV_ALLOWALL, AV_QUOTED, AV_USEIND: define to 0 if ARRAY_VARS not
          defined; used in subst.c unconditionally

sig.h
        - make the signal blocking functions not dependent on JOB_CONTROL

sig.c
        - sigprocmask: make the replacement definition not dependent on
          JOB_CONTROL

trap.c
        - use BLOCK_SIGNAL/UNBLOCK_SIGNAL instead of code dependent on
          HAVE_POSIX_SIGNALS and BSD signals

                                   1/24
                                   ----

print_cmd.c
        - print_redirection_list: change the conditions under which
          r_duplicating_output_word is mapped to r_err_and_out to more or
          less match those used in redir.c.  Fixes bug pointed out by
          Dan Douglas <ormaaj@gmail.com>


                                   1/29
                                   ----
lib/readline/signals.c
        - _rl_block_sigwinch,_rl_release_sigwinch: don't compile in bodies
          unless SIGWINCH is defined.  Fixes bug reported by Pierre Muller
          <pierre.muller@ics-cnrs.unistra.fr>

doc/{bash.1,bashref.texi}
        - small modifications to the introduction to the REDIRECTION section
          to describe how redirections can modify file handles
        - small modification to the section describing base#n to make it
          clearer that n can be denoted using non-numerics.  From a posting
          by Linda Walsh <bash@tlinx.org>

                                    2/2
                                    ---
builtins/printf.def
        - printf_builtin: make sure vbuf is intialized and non-null when -v
          is supplied, since other parts of the code assume that it's not
          null (e.g., bind_printf_variable()).  Fixes bug reported by Jim
          Avera <james_avera@yahoo.com>

                                    2/4
                                    ---
lib/readline/undo.c
        - _rl_free_undo_list: new function, old body of rl_free_undo_list,
          frees undo entries in UNDO_LIST * passed as argument
        - rl_free_undo_list: call _rl_free_undo_list

lib/readline/rlprivate.h
        - _rl_free_undo_list: new extern declaration
        - _rl_keyseq_timeout: new extern declaration (see below)

lib/readline/misc.c
        - rl_clear_history: new function.  Clears the history list and frees
          all associated data similar to history.c:clear_history(), but
          takes rl_undo_list into account and frees and UNDO_LISTs saved as
          `data' members of a history list entry

lib/readline/doc/rltech.texi
        - rl_clear_history: documented

lib/readline/readline.c
        - _rl_keyseq_timeout: new variable to hold intra-key timeout value
          from 1/21 fix; specified in milliseconds.  Default value is 500
        - _rl_dispatch_subseq: change to use _rl_keyseq_timeout as intra-key
          timeout if it's greater than 0; no timeout if <= 0
        - _rl_dispatch_subseq: don't check for queued keyboard input if we have
          pushed or pending input, or if we're reading input from a macro

lib/readline/bind.c
        - keyseq-timeout: new bindable variable, shadows _rl_keyseq_timeout
        - string_varlist: add keyseq-timeout
        - sv_seqtimeout: new function to modify value of _rl_keyseq_timeout;
          clamps negative values at 0 for now
        - _rl_get_string_variable_value: return value for keyseq-timeout

doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
        - keyseq-timeout: documented

lib/readline/isearch.c
        - _rl_isearch_dispatch: modification to fix from 7/18 to not use
          cxt->keymap and cxt->okeymap, since by the time this code is
          executed, they are equal.  Use `f' to check for rl_insert or
          unbound func
        - _rl_isearch_dispatch: if we're switching keymaps, not in
          callback mode, and don't have pending or pushed input, use
          _rl_input_queued to resolve a potentially ambiguous key sequence.
          Suggested by Roger Zauner <rogerx.oss@gmail.com>
        - _rl_isearch_dispatch: if we have changed keymaps and resolved to
          an editing function (not self-insert), make sure we stuff the
          right characters back onto the input after changing the keymap
          back so the right editing function is executed after the search
          is terminated.  Rest of fix for bug reported by Roger Zauner
          <rogerx.oss@gmail.com>

                                    2/5
                                    ---
builtins/gen-helpfiles.c
        - new file: reads struct builtin and writes the long docs to files
          in the `helpdirs' subdirectory.  The filename is given in the
          previously-unused `handle' member of the struct builtin.  Links
          with `tmpbuiltins.o', which is created by Makefile to have the
          right long documentation.  When not cross-compiling, gets the
          right #defines based on configuration options from config.h instead
          of trying to parse conditional parts of def files.  Fixes
          shortcoming pointed out by Andreas Schwab <schwab@linux-m68k.org>

builtins/Makefile.in
        - tmpbuiltins.c: new generated file, created to enable creation of
          separate helpfiles based on correct #defines instead of trying to
          parse conditional parts of def files
        - gen-helpfiles: new program to generate helpfiles, links with
          tmpbuiltins.o
        - HELPFILES_TARGET: new target, substituted by configure to `helpdoc'
          if separate helpfiles requested
        - targets: new target, libbuiltins.a and $(HELPFILES_TARGET)
        - CREATED_OBJECTS: new variable, holds created object files for
          make clean; changed make clean to remove created objects
        - helpdoc: changed to call gen-helpfiles instead of mkbuiltins

Makefile.in
        - when building libbuiltins.a, recursively call make with `targets'
          argument to make sure separate helpfiles get built

configure.in
        - substitute `helpdoc' as value of HELPFILES_TARGET if
          --enable-separate-helpfiles supplied as configure argument

builtins/mkbuiltins.c
        - `-nofunctions': new argument, causes mkbuiltins to not write value
          for function implementing a particular builtin to struct builtin
          and to write document file name to `handle' member of struct builtin
        - no longer writes separate helpfiles; that is left to gen-helpfiles

                                    2/8
                                    ---
subst.c
        - make sure last_command_exit_value is set to a non-zero value before
          any calls to report_error, since `-e' set will short-circuit
          report_error.  Fixes bug reported by Ewan Mellor
          <Ewan.Mellor@eu.citrix.com>

variables.c
        - make_local_array_variable: added second argument; if non-zero,
          function will return an existing local associative array variable
          instead of insisting on an indexed array

variable.h,subst.c
        - make_local_array_variable: changed prototype and caller

builtins/declare.def
        - declare_internal: add second arg to call to make_local_array_variable;
          making_array_special, which indicates we're processing an
          assignment like declare a[b]=c.  Fixes seg fault resulting from
          a being an already-declared local associative array variable in a
          function.  Ubuntu bash bug 928900.

                                   2/14
                                   ----

execute_cmd.c
        - execute_command_internal: if redirections into or out of a loop fail,
          don't try to free ofifo_list unless saved_fifo is non-zero.  It's
          only valid if saved_fifo is set

                                   2/15
                                   ----
{arrayfunc,braces,variables}.c
        - last_command_exit_value: make sure it's set before any calls to
          report_error, since -e will cause that to exit the shell

builtins/common.c
        - get_job_by_name: call internal_error instead of report_error so this
          doesn't exit the shell

                                   2/18
                                   ----
builtins/evalstring.c
        - parse_and_execute: make sure the file descriptor to be redirected to
          is 1 before calling cat_file.  One fix for bug reported by Dan Douglas
          <ormaaj@gmail.com>

parse.y
        - read_token_word: don't return NUMBER if a string of all digits
          resolves to a number that overflows the bounds of an intmax_t.
          Other fix for bug reported by Dan Douglas <ormaaj@gmail.com>

                                   2/19
                                   ----
lib/sh/strtrans.c
        - ansicstr: use 0x7f as the boundary for characters that translate
          directly from ASCII to unicode (\u and \U escapes) instead of
          UCHAR_MAX, since everything >= 0x80 requires more than one byte.
          Bug and fix from John Kearney <dethrophes@web.de>

builtins/printf.def
        - tescape: ditto for printf \u and \U escape sequences

                                   2/20
                                   ----
lib/sh/unicode.c
        - u32toutf8: fix to handle encodings up to six bytes long correctly
          (though technically UTF-8 only has characters up to 4 bytes long).
          Report and fix from John Kearney <dethrophes@web.de>
        - u32toutf8: first argument is now an unsigned 32-bit quantity,
          changed callers (u32cconv) to pass c instead of wc
        - u32reset: new function, resets local static state to uninitialized
          (locale information, currently)

locale.c
        - call u32reset whenever LC_CTYPE/LC_ALL/LANG is changed to reset the
          cached locale information used by u32cconv.  From a report from
          John Kearney <dethrophes@web.de>

                                   2/21
                                   ----
doc/{bash,builtins}.1
        - minor changes from Bjarni Ingi Gislason <bjarniig@rhi.hi.is>

lib/sh/unicode.c
        - u32cconv: only assume you can directly call wctomb on the passed
          value if __STDC_ISO_10646__ is defined and the value is <=
          0x7fffffff
        - stub_charset: return locale as default instead of "ASCII", let
          rest of code decide what to do with it

lib/readline/parens.c
        - _rl_enable_paren_matching: make paren matching work in vi insert
          mode.  Bug report from <derflob@derflob.de>

                                   2/22
                                   ----
lib/sh/shquote.c
        - sh_backslash_quote: quote tilde in places where it would be
          expanded.  From a report from John Kearney <dethrophes@web.de>

                                   2/23
                                   ----
execute_cmd.c
        - execute_pipeline: wrap the discard_unwind_frame call in #ifdef
          JOB_CONTROL, since the frame is only created if JOB_CONTROL is
          defined.  Bug and fix from Doug Kehn <rdkehn@yahoo.com>

                                   2/25
                                   ----
error.c
        - report_error: make sure last_command_exit_value is non-zero before
          we call exit_shell, since the exit trap may reference it.  Call
          exit_shell with last_command_exit_value to allow exit statuses
          other than 1

unicode.c
        - stub_charset: use local static buffer to hold charset, don't change
          value returned by get_locale_var.  Based on idea and code from
          John Kearney <dethrophes@web.de>
        - u32toutf16: function to convert unsigned 32-bit value (unicode) to
          UTF-16.  From John Kearney <dethrophes@web.de>
        - u32cconv: call u32toutf16 if __STDC_ISO_10646__ defined and wchar_t
          is two bytes, send result to wcstombs, return if not encoding error.
          From John Kearney <dethrophes@web.de>
        - u32cconv: return UTF-8 conversion if iconv conversion to local
          charset is unsupported

                                    3/2
                                    ---
lib/readline/complete.c
        - print_filename: if there is no directory hook, but there is a stat
          hook, and we want to append a slash to directories, call the stat
          hook before calling path_isdir on the expanded directory name.
          Report and pointer to fix from Steve Rago <sar@nec-labs.com>

                                    3/3
                                    ---
builtins/evalstring.c
        - parse_and_execute: fix to change of 2/18: make sure the file
          descriptor being redirected to is 0 before calling cat_file when
          we see something like $(< file).  Real fix for bug reported by
          Dan Douglas <ormaaj@gmail.com>

subst.c
        - parameter_brace_patsub: run the replacement string through quote
          removal even if the expansion is within double quotes, because
          the parser and string extract functions treat the quotes and
          backslashes as special.  If they're treated as special, quote
          removal should remove them (this is the Posix position and
          compatible with ksh93).  THIS IS NOT BACKWARDS COMPATIBLE.

                                    3/4
                                    ---
lib/readline/complete.c
        - rl_menu_complete: fix to make show-all-if-ambiguous and
          menu-complete-display-prefix work together if both are set.  Fix
          from Sami Pietila <sami.pietila@gmail.com>

                                    3/5
                                    ---
bashline.c
        - dircomplete_expand_relpath: new variable, if non-zero, means that
          `shopt -s direxpand' should expand relative pathnames.  Zero by
          default, not user-settable yet
        - bash_directory_completion_hook: if we have a relative pathname that
          isn't changed by canonicalization or spell checking after being
          appended to $PWD, then don't change what the user typed.  Controlled
          by dircomplete_expand_relpath

                                    3/7
                                    ---
m4/timespec.m4
        - new macros, cribbed from gnulib and coreutils: find out whether we
          have `struct timespec' and what file includes it

m4/stat-time.m4
        - new macros, cribbed from gnulib and coreutils: find out whether the
          mtime/atime/ctime/etctime fields of struct stat are of type
          struct timespec, and what the name is

include/stat-time.h
        - new file, cribbed from gnulib, with additions from coreutils: include
          the right file to get the struct timespec define, or provide our own
          replacement.  Provides a bunch of inline functions to turn the
          appropriate members of struct stat into `struct timespec' values,
          zeroing out the tv_nsec field if necessary

test.c
        - include "stat-time.h" for the nanosecond timestamp resolution stuff
        - stat_mtime: new function, returns struct stat and the mod time
          normalized into a `struct timespec' for the filename passed as the
          first argument
        - filecomp: call stat_mtime instead of sh_stat for each filename
          argument to get the mtime as a struct timespec
        - filecomp: call timespec_cmp instead of using a straight arithmetic
          comparison for the -nt and -ot operators, using timespec returned by
          stat_mtime.  Added functionality requested by by Werner Fink
          <werner@suse.de> for systems that can support it

                                   3/10
                                   ----
include/posixdir.h
        - REAL_DIR_ENTRY: remove dependency on _POSIX_SOURCE, only use feature
          test macros to decide whether dirent.d_ino is present and usable;
          define D_INO_AVAILABLE.  Report and fix from Fabrizion Gennari
          <fabrizio.ge@tiscali.it>
        - D_FILENO_AVAILABLE: define if we can use dirent.d_fileno

lib/sh/getcwd.c
        - use D_FILENO_AVAILABLE to decide whether or not to compile in
          _path_checkino and whether or not to call it.  Report and initial
          fix from Fabrizion Gennari <fabrizio.ge@tiscali.it>

lib/readline/signals.c
        - make sure all occurrences of SIGWINCH are protected by #ifdef

sig.c
        - make sure all occurrences of SIGCHLD are protected by #ifdef

nojobs.c
        - make sure SA_RESTART is defined to 0 if the OS doesn't define it

version.c
        - show_shell_version: don't use string literals in printf, use %s.
          Has added benefit of removing newline from string to be translated

trap.c
        - queue_sigchld_trap: new function, increments the number of pending
          SIGCHLD signals by the argument, which is by convention the number
          of children reaped in a call to waitchld()

trap.h
        - queue_sigchld_trap: new extern declaration

jobs.c
        - waitchld: if called from the SIGCHLD signal handler (sigchld > 0),
          then call queue_sigchld_trap to avoid running the trap in a signal
          handler context.  Report and original fix from Siddhesh Poyarekar
          <siddhesh@redhat.com>

lib/sh/unicode.c
        - u32tocesc: take an unsigned 32-bit quantity and encode it using
          ISO C99 string notation (\u/\U)
        - u32cconv: call u32tocesc as a fallback instead of u32cchar
        - u32cconv: call u32tocesc if iconv cannot convert the character.
          Maybe do the same thing if iconv_open fails
        - u32reset: call iconv_close on localconv if u32init == 1

                                   3/11
                                   ----
config-top.h
        - CHECKWINSIZE_DEFAULT: new define, set to initial value of
          check_window_size (shopt checkwinsize): 0 for off, 1 for on.
          Default is 0

{jobs,nojobs}.c
        - check_window_size: default initial value to CHECKWINSIZE_DEFAULT

                                   3/13
                                   ----
doc/bashref.texi
        - change text referring to the copying restrictions to that
          recommended by the FSF (no Front-Cover Texts and no Back-Cover
          Texts)

lib/readline/doc/{history,rlman,rluserman}.texi
        - change text referring to the copying restrictions to that
          recommended by the FSF (no Front-Cover Texts and no Back-Cover
          Texts)

                                   3/15
                                   ----
array.c
        - LASTREF_START: new macro to set the starting position for an array
          traversal to `lastref' if that's valid, and to the start of the array
          if not.  Used in array_reference, array_insert, array_remove
        - array_remove: try to be a little smarter with lastref instead of
          unconditionally invalidating it

                                   3/16
                                   ----
array.c
        - array_insert: fix memory leak by deleting element to be added in the
          case of an error

                                   3/18
                                   ----
lib/sh/mbschr.c
        - mbschr: don't call mbrlen unless is_basic is false; devolves to a
          straight character-by-character run through the string

                                   3/19
                                   ----
stringlib.c
        - substring: use memcpy instead of strncpy, since we know the length
          and are going to add our own NUL terminator

                                   3/20
                                   ----
subst.c
        - parameter_brace_expand_rhs: if expand_string_for_rhs returns a quoted
          null string (a list with one element for which
          QUOTED_NULL(list->word->word) returns true), return the quoted null
          and set the flags in the returned word to indicate it.  Fixes bug
          reported by Mark Edgar <medgar123@gmail.com>

lib/sh/tmpfile.c
        - use random(3) instead of get_random_number to avoid perturbing the
          random sequence you get using $RANDOM.  Bug report and fix from
          Jurij Mihelic <jurij.mihelic@fri.uni-lj.si>

                                   3/21
                                   ----
config-top.h
        - OPTIMIZE_SEQUENTIAL_ARRAY_ASSIGNMENT: define to 1 to optimize
          sequential indexed array assignment patterns.  Defined to 1 by
          default

array.c
        - array_insert: if OPTIMIZE_SEQUENTIAL_ARRAY_ASSIGNMENT is defined,
          start the search at lastref (see change from 3/15)

                                   3/27
                                   ----
print_cmd.c
        - debug_print_word_list: new debugging function, prints a word list
          preceded by an optional string and using a caller-specified
          separator

                                    4/1
                                    ---
command.h
        - W_ASSNGLOBAL: new flag, set to indicate declare -g

execute_cmd.c
        - fix_assignment_words: note that we have a -g argument to an assignment
          builtin and set the W_ASSNGLOBAL flag in the variable word

subst.c
        - dump_word_flags: print out W_ASSNGLOBAL if present
        - do_assignment_internal: only set ASS_MKLOCAL if W_ASSIGNARG is set
          and W_ASSNGLOBAL is not.  Don't want to create a local variable even
          if variable_context is non-zero if ASSNGLOBAL is set.  Fixes bug
          reported by Bill Gradwohl <bill@ycc.com>

                                    4/7
                                    ---
lib/readline/readline.c
        - _rl_dispatch_subseq: make the `keyseq-timeout' variable apply to
          ESC processing when in vi mode.  After hitting ESC, readline will
          wait up to _rl_keyseq_timeout*1000 microseconds (if set) for
          additional input before dispatching on the ESC and switching to
          command/movement mode.  Completes timeout work suggested by
          <rogerx.oss@gmail.com>; this prompted by report from Barry Downes
          <barry.downes@gmail.com>

lib/sh/shmbchar.c
        - sh_mbsnlen: new function, returns the number of (possibly multibyte)
          characters in a passed string with a passed length, examining at most
          maxlen (third argument) bytes

externs.h
        - sh_mbsnlen: extern declaration for new function

shell.c
        - exit_shell: call maybe_save_shell_history if remember_on_history is
          set, not just in interactive shells.  That means the history is
          saved if history is enabled, regardless of whether or not the shell
          is interactive

doc/{bash.1,bashref.texi}
        - TMOUT: fix description to make it explicit that TMOUT is the timeout
          period for a complete line of input, not just any input.  Fixes
          problem reported in Ubuntu bug 957303:
          https://bugs.launchpad.net/ubuntu/+source/bash/+bug/957303
        - HISTFILE: document change to write history list to history file in
          any shell with history enabled, not just interactive shells.  This
          seems to be more logical behavior.  Suggested by Greg Wooledge
          <wooledg@eeg.ccf.org>

                                   4/12
                                   ----
lib/readline/colors.h
        - only include stdbool.h if HAVE_STDBOOL_H is defined
        - if HAVE_STDBOOL_H is not defined, provide enough definition for the
          library to use `bool', `true', and `false'

lib/readline/parse-colors.[ch]
        - don't try to include <stdbool.h> at all; rely on colors.h to do it

lib/sh/snprintf.c
        - vsnprintf_internal: only treat '0' as a flag to indicate zero padding
          if `.' hasn't been encountered ((flags&PF_DOT) == 0); otherwise treat
          it as the first digit of a precision specifier.  Fixes bug reported
          by Petr Sumbera <petr.sumbera@sun.com>

                                   4/15
                                   ----
lib/sh/snprintf.c
        - vsnprintf_internal: if the '0' and '-' flags both occur, the '0'
          flag is ignored -- Posix.  Start of a series of fixes based on
          tests and patches from Petr Sumbera <petr.sumbera@sun.com>
        - PUT_PLUS: make sure PF_PLUS flag is specified before putting the `+'
        - vsnprintf_internal: when '+' is read as a flag, don't set right-
          justify flag if the LADJUST (`-') flag has already been supplied
        - floating: make sure to output space padding before the `+', zero
          padding after
        - exponent: make sure to output space padding before the `+', zero
          padding after
        - exponent: only subtract one from the width for the decimal point
          if we're really going to print one
        - floating: use presence of PF_PLUS flag to decide whether to account
          for the `+' in the padded field width.  Ditto for exponent()

                                   4/16
                                   ----
lib/sh/snprintf.c
        - vsnprint_internal: only reduce precision by 1 when processing the `g'
          format if it's > 0.  A precision of 0 should stay 0; otherwise it
          gets set to -1 (NOT_FOUND) and converted to the default
        - number, lnumber: if an explicit precision is supplied, turn off the
          zero-padding flag and set the pad character back to space
        - number, lnumber: only account for a `+' when performing the field
          width calculation if the coversion is base 10; we don't add a `+'
          for other bases

                                   4/18
                                   ----
tests/printf3.sub
        - try using "perl -e 'print time'" to get the current time in seconds
          since the epoch if "date +%s" is not available (solaris 8-10)

                                   4/19
                                   ----
tests/run-printf
        - use cat -v instead of relying on diff -a being available to convert
          control characters to ascii and avoid the dreaded "Binary files
          /tmp/xx and printf.right differ"

                                   4/20
                                   ----
lib/sh/strftime.c
        - incoporated new version from Aharon Robbins <arnold@skeeve.com>

                                   4/22
                                   ----
doc/{bash.1,bashref.texi}
        - slight change to the description of /dev/tcp and /dev/udp

subst.c
        - match_wpattern: logic fix to the calculation of `simple' (was |=,
          needs to be &=).  Bug report from Mike Frysinger <vapier@gentoo.org>,
          fix from Andreas Schwab <schwab@linux-m68k.org>

bashline.c
        - bash_filename_stat_hook: add code from bash_directory_completion_hook
          that performs pathname canonicalization in the same way that cd and
          other builtins will do

                                   4/25
                                   ----
execute_cmd.c
        - execute_pipeline: change the call to move_to_high_fd to make it use
          getdtablesize() and to not stomp on existing open file descriptors,
          like the fd the shell is using to read a script.  Bug report from
          Greg Wooledge <wooledg@eeg.ccf.org>

                                    5/6
                                    ---
subst.c
        - expand_word_internal: case '$': after calling param_expand and
          setting had_quoted_null, set TEMP to null.  The code that builds the
          returned string at the end of the function will take care of making
          and returning a quoted null string if there's nothing else in
          ISTRING.  If there is, the quoted null should just go away.  Part of
          fix for bug reported by Ruediger Kuhlmann <RKuhlmann@orga-systems.com>
        - expand_word_internal: when processing ISTRING to build return value,
          only set W_HASQUOTEDNULL in the returned word flags if the word is
          a quoted null string AND had_quoted_null is set.  Rest of fix

                                    5/9
                                    ---
variables.c
        - bind_variable_internal: if we get an array variable here (implicit
          assignment to index 0), call make_array_variable_value, which
          dummies up a fake SHELL_VAR * from array[0].  This matters when
          we're appending and have to use the current value
        - bind_variable_internal: after computing the new value, treat assoc
          variables with higher precedence than simple array variables; it
          might be that a variable has both attributes set

arrayfunc.c
        - bind_array_var_internal: break code out that handles creating the
          new value to be assigned to an array variable index into a new
          function, make_array_variable_value.  This handles creating a
          dummy SHELL_VAR * for implicit array[0] assignment.  Fixes bug
          reported by Dan Douglas <ormaaj@gmail.com>

arrayfunc.h
        - make_array_variable_value: new extern declaration

                                   5/19
                                   ----
variables.c
        - bind_int_variable: if an assignment statement like x=y comes in
          from the expression evaluator, and x is an array, handle it like
          x[0]=y.  Fixes bug reported by Dan Douglas <ormaaj@gmail.com>

                                   5/24
                                   ----

braces.c
        - mkseq: handle possible overflow and break the sequence generating
          loop if it occurs.  Fixes OpenSUSE bug 763591:
          https://bugzilla.novell.com/show_bug.cgi?id=763591

                                   5/25
                                   ----
Makefile.in
        - LDFLAGS_FOR_BUILD: add to compilation recipes for build tools
          buildversion, mksignames, mksyntax
        - LDFLAGS_FOR_BUILD: add to compilation recipes for test tools
          recho, zecho, printenv, xcase

builtins/Makefile.in
        - LDFLAGS_FOR_BUILD: add to compilation recipes for build tools
          gen-helpfiles, psize.aux

variables.c
        - bind_int_variable: if LHS is a simple variable name without an array
          reference, but resolves to an array variable, call
          bind_array_variable with index 0 to make x=1 equivalent to x[0]=1.
          Fixes bug reported by Dan Douglas <ormaaj@gmail.com>

                                   5/27
                                   ----
subst.c
        - expand_word_internal: make sure has_dollar_at doesn't get reset before
          recursive calls to param_expand or expand_word_internal, since it has
          to save state of what came before.  Use temp variable and make sure
          has_dollar_at is incremented if recursive call processes "$@".
          Fixes bug reported by gregrwm <backuppc-users@whitleymott.net> and
          supplemented by Dan Douglas <ormaaj@gmail.com>

doc/{bash.1,bashref.texi}
        - changes to the description of substring expansion inspired by
          suggestions from Bill Gradwohl <bill@ycc.com>

doc/bashref.texi
        - added substring expansion examples inspired by suggestions from
          Bill Gradwohl <bill@ycc.com>

variables.c
        - find_shell_variable: search for a variable in the list of shell
          contexts, ignore the temporary environment
        - find_variable_tempenv: search for a variable in the list of shell
          contexts, force search of the temporary environment
        - find_variable_notempenv: search for a variable in the list of shell
          contexts, don't force search of the temporary environment

variables.h
        - find_shell_variable: extern declaration
        - find_variable_tempenv: extern declaration
        - find_variable_notempenv: extern declaration

arrayfunc.c
        - bind_array_variable: call find_shell_variable instead of calling
          var_lookup directly

findcmd.c
        - search_for_command: call find_variable_tempenv instead of
          find_variable_internal directly
        - _find_user_command_internal: call find_variable_tempenv instead of
          find_variable_internal directly

builtins/setattr.def
        - set_var_attribute: call find_variable_notempenv instead of
          find_variable_internal directly
        - show_name_attributes:  call find_variable_tempenv instead of
          find_variable_internal directly

                                    6/1
                                    ---
sig.c
        - termsig_handler: don't try to save the shell history on a terminating
          signal any more, since it just causes too many problems on Linux
          systems using glibc and glibc malloc

lib/readline/vi_mode.c
        - rl_vi_change_to: change to correctly redo `cc', since `c' is not a vi
          motion character.  From Red Hat bug 813289
        - rl_vi_delete_to: change to correctly redo `dd', since `d' is not a vi
          motion character
        - rl_vi_yank_to: change to correctly redo `yy', since `y' is not a vi
          motion character

                                    6/4
                                    ---
lib/sh/mktime.c
        - current versions of VMS do not need to include <stddef.h>.  Fix from
          John E. Malmberg <wb8tyw@qsl.net>

                                    6/5
                                    ---
lib/sh/eaccess.c
        - sh_stat: instead of using a static buffer to do the DEV_FD_PREFIX
          translation, use a dynamically-allocated buffer that we keep
          resizing.  Fixes potential security hole reported by David Leverton
          <levertond@googlemail.com>

                                    6/5
                                    ---
braces.c
        - expand_seqterm: check errno == ERANGE after calling strtoimax for
          rhs and incr.  Part of a set of fixes from Scott McMillan
          <scotty.mcmillan@gmail.com>
        - expand_seqterm: incr now of type `intmax_t', which changes
          arguments to mkseq
        - mkseq: a better fix for detecting overflow and underflow since it's
          undefined in C and compilers `optimize' out overflow checks.  Uses
          ADDOVERFLOW and SUBOVERFLOW macros
        - mkseq: use sh_imaxabs (new macro) instead of abs() for intmax_t
          variables
        - mkseq: don't allow incr to be converted to -INTMAX_MIN
        - mkseq: make sure that strvec_create isn't called with a size argument
          greater than INT_MAX, since it only takes an int

                                    6/6
                                    ---
braces.c
        - mkseq: try and be smarter about not overallocating elements in
          the return array if the increment is not 1 or -1

                                    6/7
                                    ---
parse.y
        - history_delimiting_chars: if the parser says we're in the middle of
          a compound assignment (PST_COMPASSIGN), just return a space to avoid
          adding a stray semicolon to the history entry.  Fixes bug reported
          by "Davide Brini" <dave_br@gmx.com>

                                    6/8
                                    ---
bashline.c
        - bash_directory_completion_hook: don't attempt spelling correction
          on the directory name unless the direxpand option is set and we are
          going to replace the directory name with the corrected one in the
          readline line.  Suggested by Linda Walsh <bash@tlinx.org>

lib/sh/shquote.c
        - sh_backslash_quote: now takes a third argument: flags.  If non-zero,
          tildes are not backslash-escaped.  Have to handle both printf %q,
          where they should be escaped, and filename completion, where they
          should not when used as usernames

externs.h
        - sh_backslash_quote: declaration now takes a third argument

builtins/printf.def
        - printf_builtin: call sh_backslash_quote with 1 as third argument
          so tildes get escaped

{bashline,bracecomp}.c
        - call sh_backslash_quote with 0 as third argument so tildes are not
          escaped in completed words

doc/bash.1
        - add `coproc' to the list of reserved words.  From a report by
          Jens Schweikhardt <schweikh@schweikhardt.net>

                                   6/10
                                   ----
execute_cmd.c
        - line_number_for_err_trap: now global, so parse_and_execute can save
          and restore it with unwind-protect

builtins/evalstring.c
        - parse_prologue: save and restore line_number_for_err_trap along
          with line_number
        - restore_lastcom: new function, unwind-protect to restore
          the_printed_command_except_trap
        - parse_prologue: use restore_lastcom to save and restore the value
          of the_printed_command_except_trap around calls to parse_and_execute
          (eval/source/.)

                                   6/15
                                   ----
lib/readline/complete.c
        - complete_fncmp: change filename comparison code to understand
          multibyte characters, even when doing case-sensitive or case-mapping
          comparisons.  Fixes problem reported by Nikolay Shirokovskiy
          <nshyrokovskiy@gmail.com>

                                   6/20
                                   ----
builtins/mapfile.def
        - mapfile: move the line count increment and check for having read
          the specified number of lines to the end of the loop to avoid
          reading an additional line with zgetline.  Fixes bug reported by
          Dan Douglas <ormaaj@gmail.com>

                                   6/21
                                   ----

execute_cmd.c
        - execute_pipeline: make sure `lastpipe_flag' is initialized to 0 on
          all systems, since it's tested later in the function.  Fixes bug
          reported by John E. Malmberg <wb8tyw@qsl.net>

                                   6/22
                                   ----
mailcheck.c
        - file_mod_date_changed: return 0 right away if mailstat() does not
          return success.  Fixes bug with using uninitialized values reported
          by szymon.kalasz@uj.edu.pl

builtins/set.def
        - the `monitor' option is not available when the shell is compiled
          without job control, since the underlying `m' flag is not available

nojobs.c
        - job_control: now declared as int variable, initialized to 0, never
          modified

jobs.h
        - job_control: extern declaration no longer dependent on JOB_CONTROL

execute_cmd.c
        - execute_pipeline: made necessary changes so `lastpipe' shell option
          is now available in all shells, even those compiled without
          JOB_CONTROL defined

                                   6/23
                                   ----
lib/glob/glob.c
        - glob_filename: check for interrupts before returning if glob_vector
          returns NULL or an error.  Bug reported by Serge van den Boom
          <svdb@stack.nl>, fix from Andreas Schwab <schwab@linux-m68k.org>
        - call run_pending_traps after each call to QUIT or test of
          interrupt_state, like we do in mainline shell code
        - glob_vector: don't call QUIT; in `if (lose)' code block; just free
          memory, return NULL, and let callers deal with interrupt_state or
          other signals and traps

                                   6/25
                                   ----
lib/readline/input.c
        - rl_read_key: restructure the loop that calls the event hook a little,
          so that the hook is called only after rl_gather_tyi returns no input,
          and any pending input is returned first.  This results in better
          efficiency for processing pending input without calling the hook
          on every input character as bash-4.1 did.  From a report from
          Max Horn <max@quendi.de>

                                   6/26
                                   ----
trap.c
        - signal_is_pending: return TRUE if SIG argument has been received and
          a trap is waiting to execute

trap.h
        - signal_is_pending: extern declaration

lib/glob/glob.c
        - glob_vector: check for pending SIGINT trap each time through the loop,
          just like we check for interrupt_state or terminating_signal, and
          set `lose = 1' so we clean up after ourselves and interrupt the
          operation before running the trap.  This may require a change later,
          maybe call run_pending_traps and do that if run_pending_traps returns?

variables.c
        - sv_histtimefmt: set history_comment_character to default (`#') if
          it's 0 when we're turning on history timestamps.  The history code
          uses the history comment character to prefix timestamps, and
          leaving it at 0 effectively removes them from the history.  From a
          report to help-bash by Dennis Williamson <dennistwilliamson@gmail.com>

                                   6/27
                                   ----
lib/readline/signals.c
        - rl_maybe_restore_sighandler: new function, sets handler for SIG to
          HANDLER->sa_handler only if it's not SIG_IGN.  Needs to be called
          on same signals set using rl_maybe_set_sighandler, which does not
          override an existing SIG_IGN handler (SIGALRM is ok since it does
          the check inline; doesn't mess with SIGWINCH)

                                   6/30
                                   ----
variables.h
        - additional defines for the new `nameref' variable attribute
          (att_nameref): nameref_p, nameref_cell, var_setref

variables.c
        - find_variable_nameref: resolve SHELL_VAR V through chain of namerefs
        - find_variable_last_nameref: resolve variable NAME until last in a
          chain of possibly more than one nameref starting at shell_variables
        - find_global_variable_last_nameref: resolve variable NAME until last
          in a chain of possibly more than one nameref starting at
          global_variables
        - find_nameref_at_context: resolve SHELL_VAR V through chain of namerefs        
          in a specific variable context (usually a local variable hash table)
        - find_variable_nameref_context: resolve SHELL_VAR V through chain of
          namerefs following a chain of varible contexts
        - find_variable_last_nameref_context: resolve SHELL_VAR V as in
          find_variable_last_context, but return the final nameref instead of
          what the final nameref resolves to
        - find_variable_tempenv, find_variable_notempenv, find_global_variable,
          find_shell_variable, find_variable: modified to follow namerefs
        - find_global_variable_noref: look up a global variable without following
          any namerefs
        - find_variable_noref: look up a shell variable without following any
          namerefs
        - bind_variable_internal: modify to follow a chain of namerefs in the
          global variables table; change to handle assignments to a nameref by
          following nameref chain
        - bind_variable: modify to follow chain of namerefs when binding to a
          local variable
        - unbind_variable: changes to unset nameref variables (unsets both
          nameref and variable it resolves to)

subst.c
        - parameter_brace_expand_word: change to handle expanding nameref whose
          value is x[n]
        - parameter_brace_expand_indir: change to expand in ksh93-compatible
          way if variable to be indirected is nameref and a simple (non-array)
          expansion
        - param_expand: change to expand $foo where foo is a nameref whose value
          is x[n]

execute_cmd.c
        - execute_for_command: changes to implement ksh93 semantics when index
          variable is a nameref

builtins/setattr.def
        - show_var_attributes: change to add `n' to flags list if att_nameref
          is set

builtins/set.def
        - unset_builtin: changes to error messages to follow nameref variables

builtins/declare.def
        - document new -n option
        - declare_internal: new `-n' and `+n' options
        - declare_internal: handle declare -n var[=value] and
          declare +n var[=value] for existing and non-existant variables.
          Enforce restriction that nameref variables cannot be arrays.
          Implement semi-peculiar ksh93 semantics for typeset +n ref=value

                                    7/5
                                    ---
variables.c
        - unbind_variable: unset whatever a nameref resolves to, leaving the
          nameref variable itself alone
        - unbind_nameref: new function, unsets a nameref variable, not the
          variable it references

variables.h
        - unbind_nameref: extern declaration

builtins/set.def
        - unset_builtin: modify to add -n option, which calls unbind_nameref
          leaving unbind_variable for the usual case.  This required slight
          changes and additions to the test suite

doc/{bash.1,bashref.texi}
        - document namerefs and typeset/declare/local/unset -n

                                   7/13
                                   ----
lib/sh/casemod.c
        - include shmbchar.h for is_basic and supporting pieces
        - sh_casemod: use _to_wupper and _to_wlower to convert wide character
          case instead of TOUPPER and TOLOWER.  Fixes bug reported by
          Dennis Williamson <dennistwilliamson@gmail.com>, fix from
          Andreas Schwab <schwab@linux-m68k.org>
        - cval: short-circuit and return ascii value if is_basic tests true
        - sh_casemod: short-circuit and use non-multibyte case modification
          and toggling code if is_basic tests true

lib/readline/signals.c
        - _rl_{block,release}_sigint: remove the code that actually blocks and
          releases the signals, since we defer signal handling until calls to
          RL_CHECK_SIGNALS()

lib/readline/{callback,readline,util}.c
        - if HAVE_POSIX_SIGSETJMP is defined, use sigsetjmp/siglongjmp without
          saving and restoring the signal mask instead of setjmp/longjmp

lib/readline/rltty.c
        - prepare_terminal_settings: don't mess with IXOFF setting if
          USE_XON_XOFF defined

doc/{bash.1,bashref.texi}
        - add some text to the description of set -e clarifying its effect
          on shell functions and shell function execution.  Suggested by
          Rainer Blome <rainer.blome@gmx.de>

bashline.c
        - edit_and_execute_command: increment current_command_line_count before
          adding partial line to command history (for command-oriented-history
          because of rl_newline at beginning of function), then reset it to 0
          before adding the dummy history entry to make sure the dummy entry
          doesn't get added to previous incomplete command.  Partial fix for
          problem reported by Peng Yu <pengyu.ut@gmail.com>

                                   7/24
                                   ----
configure.in
        - interix: define RECYCLES_PIDS.  Based on a report from Michael
          Haubenwallner <michael.haubenwallner@salomon.at>

                                   7/26
                                   ----
jobs.c
        - make_child: call bgp_delete on the newly-created pid unconditionally.
          Some systems reuse pids before cycling through an entire set of
          CHILD_MAX/_SC_CHILD_MAX unique pids.  This is no longer dependent
          on RECYCLES_PIDS.  Based on a report from Michael Haubenwallner
          <michael.haubenwallner@salomon.at>

support/shobj-conf
        - Mac OS X: drop MACOSX_DEPLOYMENT_TARGET=10.3 from the LDFLAGS. We
          can finally kill Panther

                                   7/28
                                   ----
subst.c
        - command_substitute: make sure last_made_pid gets reset if make_child
          fails

execute_cmd.c
        - execute_command_internal: case cm_simple: decide whether or not to
          wait_for a child if already_making_children is non-zero, indicates
          that there is an unwaited-for child.  More of fix for bug report
          from Michael Haubenwallner <michael.haubenwallner@salomon.at>

jobs.c
        - make_child: call delete_old_job (new_pid) unconditionally, don't
          bother to check whether or not pid wrap occurred.  Rest of fix for
          bug report from Michael Haubenwallner
          <michael.haubenwallner@salomon.at>

                                   7/29
                                   ----
shell.c
        - subshell_exit: new function, exits the shell (via call to sh_exit())
          after calling any defined exit trap

externs.h
        - subshell_exit: new extern declaration

execute_cmd.c
        - execute_command_internal: make sure to call subshell_exit for
          {} group commands executed asynchronously (&).  Part of fix for
          EXIT trap bug reported by Maarten Billemont <lhunath@lyndir.com>

sig.c
        - reset_terminating_signals: make sure to set termsigs_initialized back
          to 0, so a subsequent call to initialize_terminating_signals works
          right.  Rest of fix for bug reported by Maarten Billemont
          <lhunath@lyndir.com>

{execute_cmd,general,jobs,mailcheck,mksyntax,test}.c
builtins/{cd,fc,pushd,ulimit}.def
lib/malloc/getpagesize.h
lib/sh/{clktck,fpurge,inet_aton,mailstat,oslib,pathcanon,pathphys,spell,strerror}.c
        - make inclusion of <sys/param.h> dependent on HAVE_SYS_PARAM_H
          consistently

                                    8/6
                                    ---
lib/readline/histexpand.c
        - history_expand_internal: now takes an additional argument saying
          whether the history expansion occurs within a quoted string, set to
          the open quote character
        - history_expand_internal: use new argument instead of checking prev
          char and initializing quoted_search_delimiter, pass qc directly to
          get_history_event, where it allows a matching quote to terminate a
          string defining an event
        - history_expand: change single-quote handling code so that if
          history_quotes_inhibit_expansion is 0, single quotes are treated
          like double quotes
        - history_expand: change call to history_expand_internal to pass new
          argument of `"' if double-quoted string, `'' if single-quoted string;
          this lets history_expand decide what is a quoted string and what
          is not

                                    8/7
                                    ---
configure.in
        - AC_CANONICAL_BUILD: invoke for later use

lib/readline/macro.c
        - _rl_prev_macro_key: new function, inverse of _rl_next_macro_key:
          backs up the index into the current macro by 1

lib/readline/rlprivate.h
        - _rl_prev_macro_key: extern declaration


lib/readline/readline.c
        - _rl_dispatch_subseq, _rl_subseq_result: don't call _rl_unget_char
          if we're currently reading from a macro; call _rl_prev_macro_key
          instead.  Fixes bug reported by Clark Wang <clark.wang@oracle.com>

                                   8/13
                                   ----
builtins/evalstring.c
        - evalstring(): new function, wrapper around parse_and_execute.
          make sure we handle cases where parse_and_execute can call `return'
          and short-circuit without cleaning up properly.  We call
          parse_and_execute_cleanup() then jump to the previous-saved return
          location

builtins/common.h
        - extern declaration for evalstring()

builtins/eval.def
        - eval_builtin: make sure we handle `eval " ... return"' in contexts
          where `return' is valid by calling evalstring().  Fixes bug with
          `eval return' in sourced files reported by Clark Wang
          <dearvoid@gmail.com>

trap.c
        - run_pending_traps: call evalstring instead of parse_and_execute.
          XXX - still needs to handle saving and restoring token state in the
          presence of `return'; could use unwind_protects for that

builtins/mapfile.def
        - run_callback: call evalstring instead of parse_and_execute

                                   8/15
                                   ----
bashline.c
        - bash_filename_stat_hook: make sure we don't free local_dirname
          before using it to canonicalize any expanded filename.  Make sure
          it always points to *dirname and only free it if we're replacing
          it.

lib/readline/complete.c
        - append_to_match: make sure we call rl_filename_stat_hook with
          newly-allocated memory to avoid problems with freeing it twice

                                   8/17
                                   ----
variables.c,config-top.h
        - if ARRAY_EXPORT is defined to 1 when variables.c is compiled, the
          code that allows indexed arrays to be exported is enabled and
          included

                                   8/19
                                   ----
shell.c
        - call start_debugger from main() only if dollar_vars[1] != 0 (close
          enough to a non-interactive shell, since we can be interactive with
          -i while running a shell script).  Fixes oddity reported by
          Techlive Zheng <techlivezheng@gmail.com>

                                   8/20
                                   ----
arrayfunc.c
        - quote_array_assignment_chars: don't bother quoting if the word has
          not been marked as an assignment (W_ASSIGNMENT)
        - quote_array_assignment_chars: turn on W_NOGLOB in the word flags
          so assignment statements don't undergo globbing.  Partial fix for
          problems reported by Dan Douglas <ormaaj@gmail.com>

                                   8/21
                                   ----
command.h
        - W_NOBRACE: new word flag that means to inhibit brace expansion

subst.c
        - brace_expand_word_list: suppress brace expansion for words with
          W_NOBRACE flag

                                   8/22
                                   ----
builtins/read.def
        - read_builtin: don't call dequote_string on what we've read, even if
          we saw an escape character, unless (input_string && *input_string).
          We may have escaped an IFS whitespace character.  Fixes seg fault
          reported by <armandsl@gmail.com>

execute_cmd.c
        - execute_command_internal: set the_printed_command_except trap when
          about to execute a ( ... ) user subshell.  For now, set it only if
          ERR is trapped; can relax that later.  Fixes bug reported by
          Mike Frysinger <vapier@gentoo.org>

                                   8/23
                                   ----
jobs.c
        - remove references to first_pid and pid_wrap, since we're not using
          them for anything anymore

                                   8/24
                                   ----
subst.c
        - changes for W_NOBRACE everywhere appropriate: so it can be displayed
          for debugging, and passed out of expand_word_internal

doc/{bash.1,bashref.texi}
        - small changes to make it clearer that the = and == operators are
          equivalent, and will cause pattern matching when used with [[.
          From a question from Michal Soltys <soltys@ziu.info>

doc/bashref.texi
        - some small formatting changes from Karl Berry <karl@freefriends.org>

                                   8/27
                                   ----
lib/readline/doc/{history,rlman,rluserman}.texi
        - some small formatting changes from Karl Berry <karl@freefriends.org>

arrayfunc.c
        - assign_array_element_internal, assign_compound_array_list,
          unbind_array_element, array_value_internal: changes to make
          assignment statements to negative indices (a[-1]=2) and unsetting
          array elements using negative indices (unset 'a[-1]') work.
          From suggestions by Dennis Williamson <dennistwilliamson@gmail.com>
          and Chris F. A. Johnson <chris@cfajohnson.com>

subst.c
        - array_length_reference: changes to make length references to array
          elements using negative indices (${#a[-1]}) work

                                   8/28
                                   ----
doc/{bash.1,bashref.texi}
        - document new treatment of negative indices to indexed arrays when
          assigning, referencing, calculating length, and unsetting

                                   8/29
                                   ----
shell.c
        - show_shell_usage: add -l to list of shell invocation options (short
          for --login).  From Red Hat bug 852469

configure.ac
        - renamed from configure.in, as latest autoconf versions want.  Patches
          Stefano Lattarini <stefano.lattarini@gmail.com>

MANIFEST,Makefile.in,doc/bashref.texi,support/mkconffiles
        - configure.in -> configure.ac

                                    9/1
                                    ---

parse.y
        - read_token_word: allow words like {array[ind]} to be valid redirection
          words for constructs like {x}<file

redir.c
        - redir_varassign: bind_var_to_int already handles array assignments,
          so don't need to do anything more for things like {a[i]}<file
        - redir_varvalue: changes to allow references to {a[i]} when
          performing redirections using valid_array_reference and
          get_array_value.  Adds functionality requested most recently by
          <unknown@vmw-les.eng.vmware.com>

lib/readline/display.c
        - update_line: if the first difference between the old and new lines
          is completely before any invisible characters in the prompt, we
          should not adjust _rl_last_c_pos, since it's before any invisible
          characters.  Fixed in two places
        - prompt_modechar: return a character indicating the editing mode:
          emacs (@), vi command (:), or vi insert (+)
        - _rl_reset_prompt: new function, just calls rl_expand_prompt.  Will be
          inlined, placeholder for more changes
        - expand_prompt: if show-mode-in-prompt is enabled, add a character to
          the front of the prompt indicating the editing mode, adjusting the
          various variables as appropriate to keep track of the number of
          visible characters and number of screen positions

lib/readline/bind.c
        - show-mode-in-prompt: new bindable boolean variable, shadowed by
          _rl_show_mode_in_prompt variable
        - hack_special_boolean_var: call _rl_reset_prompt when toggling or
          setting show-mode-in-prompt

lib/readline/readline.c
        - readline_internal_setup: make sure the correct vi mode keymap is set
          before expanding the prompt string for the first time

lib/readline/misc.c
        - rl_emacs_editing_mode: make sure to call _rl_reset_prompt if we're
          showing the editing mode in the prompt

lib/readline/rlprivate.h
        - _rl_reset_prompt, _rl_show_mode_in_prompt: extern declarations

lib/readline/vi_mode.c
        - rl_vi_insertion_mode: call _rl_reset_prompt
        - rl_vi_movement_mode: call _rl_reset_prompt.  Finishes changes for
          showing mode in prompt string, originally requested by Miroslav
          Koskar <mkoskar@gmail.com> and most recently by Jordan Michael
          Ziegler <jziegler@bnl.gov>

doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
        - document new show-mode-in-prompt variable, off by default

                                    9/3
                                    ---

jobs.c
        - set_childmax: new function, external mechanism for other parts of
          the shell to set js.c_childmax, the number of saved exited child
          statuses to remember
jobs.h
        - set_childmax: extern declaration

variables.c
        - CHILD_MAX: new special variable, with sv_childmax function to
          run when it changes.  Setting CHILD_MAX to a value greater than
          zero but less than some maximum (currently 8192) sets the number of
          exited child statuses to remember.  set_childmax (jobs.c) ensures
          that the number does not drop below the posix-mandated minimum
          (CHILD_MAX)

doc/{bash.1,bashref.texi}
        - CHILD_MAX: document new meaning and action when variable is set

                                    9/5
                                    ---
redir.c
        - redir_varassign: call stupidly_hack_special_variables after
          assigning fd number to specified variable, so we can use constructs
          like {BASH_XTRACEFD}>foo.  Suggested by Pierre Gaston
          <pierre.gaston@gmail.com>

                                    9/8
                                    ---
expr.c
        - readtok: invalidate previous contents of `curlval' before freeing
          and reallocating tokstr (which, chances are, will get the same
          pointer as before and render curlval inconsistent).  Fixes other
          bug reported by Dan Douglas <ormaaj@gmail.com>

                                    9/9
                                    ---
lib/readline/complete.c
        - rl_username_completion_function: protect call to setpwent() with
          #ifdef (HAVE_GETPWENT)/#endif.  Fixes bug reported by
          Gerd Hofmann <gerd.hofmann.nbg@googlemail.com>

lib/readline/display.c
        - rl_message: second and subsequent calls to rl_message can result in
          local_prompt being overwritten with new values (e.g., from the
          successive calls displaying the incremental search string).  Need
          to free before overwriting if it's not the same as the value saved
          in saved_local_prompt.  Fixes memory leak reported by
          Wouter Vermaelen <vermaelen.wouter@gmail.com>

lib/readline/{terminal.c,rlprivate.h}
        - move CUSTOM_REDISPLAY_FUNC and CUSTOM_INPUT_FUNC defines from
          terminal.c to rlprivate.h so other files can use them

expr.c
        - expr_streval: if noeval is non-zero, just return 0 right away,
          short-circuiting evaluation completely.  readtok will leave curtok
          set correctly without re-entering the evaluator at all.  Rest of
          fix for bug reported by Dan Douglas <ormaaj@gmail.com>

                                   9/11
                                   ----

parse.y
        - parse_comsub: make sure the `reserved word ok in this context' flag
          is preserved after we read `do' followed by whitespace.  Fixes bug
          reported by Benoit Vaugon <benoit.vaugon@gmail.com>

                                   9/13
                                   ----
configure.ac,config.h.in
        - enable-direxpand-default: new configure option, turns the `direxpand'
          shell option on by default

bashline.c
        - dircomplete_expand, dircomplete_expand_relpath: initialize to 1 if
          DIRCOMPLETE_EXPAND_DEFAULT is defined and non-zero

doc/bashref.texi
        - enable-direxpand-default: document new configure option

                                   9/14
                                   ----
shell.c
        - --protected: make option valid only when wordexp is compiled into
          the shell.  Fix from Roman Rakus <rrakus@redhat.com>

configure.ac
        - HP NonStop (*-nsk*): compile --without-bash-malloc. Change from
          Joachim Schmitz <jojo@schmitz-digital.de>

                                   9/16
                                   ----
subst.c,execute_cmd.c,lib/glob/sm_loop.c,lib/sh/shquote.c
        - minor code cleanups from Joachim Schmitz <jojo@schmitz-digital.de>

lib/readline/colors.h
        - workaround for HP NonStop compiler issue with <stdbool.h> from
          Joachim Schmitz <jojo@schmitz-digital.de>

                                   9/17
                                   ----
builtins/printf.def
        - printf_builtin: handle localtime returning NULL, as can happen when
          encountering overflow.  Bug report and initial fix from
          Eduardo A. Bustamante López <dualbus@gmail.com>

doc/{bash.1,bashref.texi}
        - emphasize that brace expansion using character ranges ({a..c}) acts
          as if the C locale were in use.  Prompted by message from
          Marcel Giannelia <info@skeena.net>

                                   9/20
                                   ----
lib/sh/wcsnwidth.c
        - wcsnwidth: new function, variant of wcwidth, returns the number of
          wide characters from a string that will be displayed to not exceed
          a specified max column position

                                   9/21
                                   ----
builtins/help.def
        - show_builtin_command_help: break code that displays the short-doc
          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.com>

                                   9/22
                                   ----
execute_cmd.c
        - execute_disk_command: before running the command-not-found hook,
          call kill_current_pipeline() to make sure we don't add processes
          to an existing pipeline or wait for processes erroneously

                                   9/23
                                   ----
lib/readline/input.c
        - rl_input_available_hook: new hook function, called from
          _rl_input_available (or _rl_input_queued) to return whether or not
          input is available wherever the input source is

lib/readline/doc/rltech.texi
        - rl_input_available_hook: document

                                   9/27
                                   ----
lib/glob/sm_loop.c:
        - GMATCH: after one or more `*', an instance of ?(x) can match zero or
          1 times (unlike ?, which has to match one character).  The old code
          failed if it didn't match at least once.  Fixes `a*?(x)' bug.
        - GMATCH: if we hit the end of the search string, but not the end of
          the pattern, and the rest of the pattern is something that can
          match the NUL at the end of the search string, we should successfully
          match.  Fixes `a*!(x)' bug reported by <hans1worst@gmail.com>

                                   10/2
                                   ----
command.h
        - add c_lock member to coproc structure for future use to tell who is
          manipulating it

execute_cmd.c
        - execute_coproc: block SIGCHLD while parent is forking coproc
          process and adding pid to sh_coproc struct to avoid race condition
          where child is reaped before the pid is assigned and the coproc is
          never marked as having died.  Fixes race condition identified by
          Davide Baldini <baldiniebaldini@gmail.com>
        - add assignments to c_lock member of struct coproc in various
          functions that manipulate it; was used to identify race condition
        - coproc_pidchk: don't call coproc_dispose to avoid using malloc and
          other functions in a signal handler context
        - coproc_dispose: call BLOCK_SIGNAL/UNBLOCK_SIGNAL for SIGCHLD while
          manipulating the sh_coproc struct

                                   10/6
                                   ----
lib/readline/complete.c
        - rl_display_match_list: if printing completions horizontally, don't
          bother with spacing calculations if limit == 1, which means we are
          printing one completion per line no matter what.  Fixes bug
          reported by David Kaasen <kaasen@nvg.ntnu.no>

                                   10/7
                                   ----
builtins/declare.def
        - declare_internal: add error checking for nameref attribute and
          variable assignments: self-references, attempts to make an array
          variable a nameref

subst.c
        - parameter_brace_expand: handle parameter_brace_expand_word returning
          &expand_param_fatal or &expand_param_error and return the appropriate
          error value
        - parameter_brace_expand_word: if a nameref variable's value is not a
          valid identifier, return an error
        - param_expand: if a nameref variable's value is not a valid identifier,
          return an error

test.c
        - unary_operator: add new -R variable, returns true if variable is set
          and has the nameref attribute. From ksh93

builtins/test.def
        - add -R to description of conditional commands for help test

doc/{bash.1,bashref.texi}
        - document new -R unary conditional operator

                                   10/13
                                   -----
trap.c
        - check_signals_and_traps: new function, convenience function for the
          rest of the shell to check for pending terminating and interrupt
          signals, and to check for and process any pending traps
        - any_signals_trapped: new function, returns non-zero if any signals
          are trapped and -1 if not

trap.h
        - extern declaration for check_signals_and_traps

bashline.c
        - bashline_reset: make sure we reset the event hook
        - bash_event_hook: call check_signals_and_traps instead of just
          checking for terminating signals so we can run pending traps and
          react to interrupts, and reset the event hook when we're done


                                   10/14
                                   -----
trap.c
        - trap_handler: if executing in a readline signal handler context,
          call bashline_set_event_hook to install bash_event_hook to process
          the signal (if bash cares about it)

sig.c
        - sigint_sighandler: call bashline_set_event_hook to set the event
          hook if we're executing in a readline signal handler context

lib/readline/input.c
        - rl_getc: call RL_CHECK_SIGNALS if read returns -1/EINTR and the caught
          signal is SIGINT or SIGQUIT rather than waiting until the next time
          around the loop
        - rl_getc: call rl_event_hook after calling RL_CHECK_SIGNALS to allow
          an application signal handler to set the event hook in its own
          signal handler (e.g., like bash trap_handler or sigint_sighandler)


parse.y
        - yy_readline_get: don't set interrupt_immediately before we call
          readline().  Inspired by report from lanshun zhou
          <zls.sogou@gmail.com>

input.c
        - getc_with_restart: add call to run_pending_traps after call to
          CHECK_TERMSIG

lib/sh/zread.c
        - zread: call check_signals_and_traps if read() returns -1/EINTR
          instead of just ignoring the EINTR and deferring handling any
          signal that generated it

builtins/mapfile.def
        - mapfile: don't set interrupt_immediately before calling zgetline()
          (which uses zread internally)

builtins/read.def
        - read_builtin: don't set interrupt_immediately before calling zread
          (moved code around so that it was only being set right around calls
          to zread to avoid signal handler conflicts).  Inspired by report
          from lanshun zhou <zls.sogou@gmail.com>
        - edit_line: don't set interrupt_immediately around call to readline()
        - include shmbutil.h
        - read_builtin: don't call read_mbchar unless is_basic(c) returns
          false for the character we just read

                                   10/15
                                   -----
sig.c
        - throw_to_top_level: if interrupt_state is non-zero, make sure that
          last_command_exit_value reflects 128+SIGINT if it's not already
          greater than 128

                                   10/20
                                   -----
builtins/wait.def
        - WAIT_RETURN: set wait_signal_received back to 0 for the potential
          next call to wait

quit.h
        - CHECK_WAIT_INTR: macro to check whether trap_handler handled a
          signal and set wait_signal_received; longjmp to wait_intr_buf in
          that case

jobs.c
        - wait_for, waitchld: call CHECK_WAIT_INTR at the same places we call
          CHECK_TERMSIG to check for terminating signals
        - wait_sigint_handler: don't longjmp out of the wait builtin unless
          interrupt_immediately is set; otherwise just SIGRETURN from the
          handler
        - wait_sigint_handler: if interrupt_immediately not set, but we are
          executing in the wait builtin and SIGINT is not trapped, treat it
          as a `normally received' SIGINT: restore the signal handler and
          send SIGINT to ourselves
        - waitchld: when in posix mode and running SIGCHLD traps, don't longjmp
          to wait_intr_buf (and let wait be interrupted) if we're running from
          a signal handler.  Wait for CHECK_WAIT_INTR to do the longjmp.
          run_pending_traps will run the SIGCHLD trap later

nojobs.c
        - reap_zombie_children, wait_for_single_pid, wait_for: call
          CHECK_WAIT_INTR where we call CHECK_TERMSIG
        - wait_sigint_handler: don't longjmp out of the wait builtin unless
          interrupt_immediately is set; otherwise just SIGRETURN from the
          handler

trap.c
        - trap_handler: make sure wait_signal_received is set if the wait
          builtin is executing, and only longjmp if interrupt_immediately is
          set.  This whole set of fixes was prompted by report from
          lanshun zhou <zls.sogou@gmail.com>

                                   10/24
                                   -----
lib/glob/glob.c
        - glob_filename: only check directory_name for globbing chars if
          it's of non-zero length

lib/sh/strchrnul.c
        - new simpler implementation

subst.c
        - command_substitute: call set_shellopts after turning off errexit
          in subshells so it's reflected in $SHELLOPTS

                                   11/7
                                   ----
builtins/evalstring.c
        - parse_and_execute: treat ERREXIT case like reader_loop does: set
          variable_context to 0 before longjmping back to top_level. Don't
          run the unwind-protect context to avoid side effects from popping
          function contexts.  Part of fix for problem reported by Nikolai
          Kondrashov <nikolai.kondrashov@redhat.com>

execute_cmd.c
        - execute_simple_command: call unlink_fifo_list only if this is the
          last element of a pipeline (or not in a pipeline), rather than for
          every child.  Fixes difference in behavior between /dev/fd and
          FIFOs reported by Zev Weiss <zev@bewilderbeest.net>
        - execute_null_command: do the same thing in the parent branch after
          make_child

                                   11/14
                                   -----
subst.c
        - parameter_brace_expand: a variable is null if it's special ($@, $*),
          the expansion occurs within double quotes, and the expansion turns
          into a quoted null.  Fixes debian bug 692447 reported by
          Matrosov Dmitriy <sgf.dma@gmail.com>

jobs.c
        - run_sigchld_trap: make sure `running_trap' sentinel is set
          appropriately
        - waitchld: only run the sigchld trap if we're not in a signal
          handler, not running a trap, and executing the wait builtin.
          Otherwise, queue for later handling.  We still run one instance
          of the trap handler per exited child.  Bulk of fix for bug
          reported by Elliott Forney <idfah@cs.colostate.edu>

trap.c
        - queue_sigchld_trap: set catch_flag so run_pending_traps notices,
          and set trapped_signal_received for completeness.  Rest of fix
          for bug reported by Elliott Forney <idfah@cs.colostate.edu>

lib/malloc/malloc.c
        - block_signals: renamed to _malloc_block_signals, made public
        - unblock_signals: renamed to _malloc_unblock_signals, made public

lib/malloc/imalloc.h
        - extern declarations for _malloc_{un,}block_signals

lib/malloc/table.c
        - mregister_alloc, mregister_free: block signals around table
          manipulation

                                   11/15
                                   -----
trap.c
        - run_pending_traps: set SIG_INPROGRESS flag around calls to
          run_sigchld_handler so other parts of the shell know that the
          SIGCHLD trap handler is executing
        - run_pending_traps: if we get a situation where we are looking at
          running a SIGCHLD trap but the trap string is IMPOSSIBLE_TRAP_HANDLER
          and the SIG_INPROGRESS flag is set, just skip it.  This is possible
          if run_pending_traps is called from a SIGCHLD trap handler run by
          run_sigchld_trap

doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
        - corrected description of the effect of `set history-size 0'.  Report
          from Vesa-Matti J Kari <vmkari@cc.helsinki.fi>

include/stdc.h
        - CPP_STRING: new define, replaces __STRING

lib/malloc/{malloc.c,imalloc.h}
        - replace __STRING with CPP_STRING

                                   11/16
                                   -----
lib/readline/bind.c
        - sv_histsize: if argument evaluates to a value < 0, unstifle the
          history

                                   11/22
                                   -----
redir.c
        - do_redirection_internal: if we have REDIR_VARASSIGN set in the
          redirection flags and we set up `redirector' using fcntl or dup2,
          don't add a redirect to make sure it stays open.  Let the
          script programmer manage the file handle.  Fixes bug reported by
          Sam Liddicott <sam@liddicott.com>

                                   11/24
                                   -----
jobs.c
        - wait_for_any_job: new function, waits for an unspecified background
          job to exit and returns its exit status.  Returns -1 on no background
          jobs or no children or other errors.  Calls wait_for with new
          sentinel value ANY_PID
        - wait_for: changes to handle argument of ANY_PID: don't look up or
          try to modify the child struct, only go through the wait loop once.
          Return -1 if waitpid returns no children

jobs.h
        - ANY_PID: new define

builtins/wait.def
        - new option: -n. Means to wait for the next job and return its exit
          status.  Returns 127 if there are no background jobs (or no
          children).  Feature most recently requested by Elliott Forney
          <idfah@cs.colostate.edu>

doc/{bash.1,bashref.texi}
        - document new `wait -n' option

execute_cmd.c
        - execute_command_internal: save make_command_string () result in a
          temp variable before calling savestring() on it; avoids evaluating
          make_command_string() result twice.  Fix from John E. Malmberg
          <wb8tyw@qsl.net>

                                   11/28
                                   -----

builtins/declare.def
        - declare_internal: if an array variable is declared using `declare -a'
          or `declare -A', but not assigned a value, set the `invisible'
          attribute so the variable does not show up as set.  Fix for bug
          about variable initialization reported by Tim Friske <me@timfriske.com>

builtins/{mapfile,read}.def
        - after calling find_or_make_array_variable, make sure the invisible
          flag is turned off, in case the variable was declared previously
          using `declare -a' or `declare -A'.  Side effect of above change to
          declare_internal

subst.c
        - shell_expand_word_list: handle the W_ASSNGLOBAL flag and put -g into
          the list of options passed to make_internal_declare as appropriate.
          Fix for bug reported by Tim Friske <me@timfriske.com>

                                   11/30
                                   -----
test.c
        - unary_op: make sure -v and -n check that the variable is not marked
          as invisible before calling var_isset.  Fix for bug reported by Tim
          Friske <me@timfriske.com>

                                   12/2
                                   ----
subst.c
        - process_substitute: turn off the `expanding_redir' flag, which
          controls whether or not variables.c:find_variable_internal uses the
          temporary environment to find variables.  We want to use the
          temp environment, since we don't have to worry about order of
          evaluation in a subshell.  Fixes bug reported by Andrey Borzenkov
          <arvidjaar@gmail.com>

                                   12/4
                                   ----
lib/glob/glob.c
        - glob_filename: changes to avoid null filenames and multiple entries
          returned for patterns like **/** (globstar enabled).  Fixes bug
          reported by Ulf Magnusson <ulfalizer@gmail.com>

                                   12/10
                                   -----
lib/glob/glob.c
        - glob_filename: finish up a series of changes to make globstar-style   
          globbing more efficient, avoid more duplicate filenames, and be more
          compatible with other shells that implement it
                o collapse a sequence of **/**/** to one **
                o note when the directory name is all ** or ends in ** so we
                  can treat it specially when the filename is **
          All inspired by report from Andrey Borzenkov <arvidjaar@gmail.com>

lib/sh/zread.c
        - zreadn: new function, like zread, but takes an additional argument
          saying how many bytes to read into the local buffer.  Can be used to
          implement `read -N' without so many one-byte calls to zreadc.  Code
          from Mike Frysinger <vapier@gentoo.org>

                                   12/12
                                   -----
lib/glob/sm_loop.c
        - PATSCAN (glob_patscan): if passed string already points to end of
          pattern, return NULL immediately.  Fixes problem with
          extglob_skipname reported by Raphaël Droz <raphael.droz@gmail.com>

                                   12/13
                                   -----
execute_cmd.c
        - execute_coproc: handle the command's exit status being inverted
          (an oversight).  Fixes bug reported by DJ Mills
          <danielmills1@gmail.com> and Andreas Schwab <schwab@linux-m68k.org>

                                   12/14
                                   -----
lib/readline/readline.c
        - bind_arrow_keys_internal: add MINGW key bindings for Home, End,
          Delete, and Insert keys.  Fix from Pierre Muller
          <pierre.muller@ics-cnrs.unistra.fr>

builtins/printf.def
        - printf_builtin: '%()T' conversion: if there is no argument supplied,
          behave as if -1 had been supplied (current time).  ksh93-like feature
          suggested by Clark Wang <dearvoid@gmail.com>

doc/{bash.1,bashref.texi}
        - document new printf %()T default argument behavior

                                   12/15
                                   -----
lib/readline/display.c
        - displaying_prompt_first_line: new variable, indicates whether or
          not the first line of output is displaying the prompt.  Always true
          in normal mode, sometimes false in horizontal scrolling mode
        - rl_redisplay: set displaying_prompt_first_line to true unless we
          are in horizontal mode; set to false in horizontal mode if the left
          margin of the displayed line is greater than the end of the prompt
          string
        - rl_redisplay: when in horizontal scroll mode, don't adjust
          _rl_last_c_pos by the wrap offset unless the line is displaying
          a prompt containing invisible chars
        - update line: don't adjust _rl_last_c_pos by the wrap offset unless
          the line is displaying a prompt containing invisible chars
        - update_line: if shrinking the line by reducing the number of
          displayed characters, but we have already moved the cursor to the
          beginning of the line where the first difference starts, don't
          try to delete characters

builtins/read.def
        - unbuffered_read: set to 2 if invoked as `read -N'
        - if unbuffered_read is set to 2, compute the number of chars we
          need to read and read that many with zreadn.  Posix mode still
          uses zreadintr.  Code from Mike Frysinger <vapier@gentoo.org>

doc/{bash.1,bashref.texi}
        - read: make it clear that if read times out, it saves any input
          read to that point into the variable arguments.  Report from
          Fiedler Roman <Roman.Fiedler@ait.ac.at>

subst.c
        - command_substitute: change direct assignment of exit_immediately_on_error
          to use change_flag ('e', FLAG_OFF) instead

flags.c
        - use errexit_flag as the variable modified by changes to the -e
          option, reflect those changes to exit_immediately_on_error

execute_cmd.c
        - execute_builtin: new global variable, builtin_ignoring_errexit, set
          to 0 by default and set to 1 if eval/source/command executing in a
          context where -e should be ignored
        - execute_builtin: set exit_immediately_on_error to errextit_flag
          after executing eval/source/command in a context where -e should
          be ignored

flags.c
        - if builtin_ignoring_errexit is set, changes to errexit_flag are
          not reflected in the setting of exit_immediately_on_error.  Fixes
          bug reported by Robert Schiele <rschiele@gmail.com>

                                   12/23
                                   -----
include/posixjmp.h
        - setjmp_nosigs: new define, call setjmp in such a way that it will
          not manipulate the signal mask

{expr,test,trap}.c
        - setjmp_nosigs: call instead of setjmp; don't need to manipulate
          signal mask

builtins/read.def
        - read_builtin: setjmp_nosigs: call instead of setjmp; don't need
          to manipulate signal mask

builtins/evalstring.c:
        - parse_and_execute: setjmp_nosigs: call instead of setjmp; don't need
          to manipulate signal mask
        - parse_string: setjmp_nosigs: call instead of setjmp; don't need
          to manipulate signal mask
        - parse_and_execute: save and restore the signal mask if we get a
          longjmp that doesn't cause us to return or exit (case DISCARD)

                                   12/24
                                   -----
general.c
        - bash_tilde_expand: only set interrupt_immediately if there are no
          signals trapped; we want to jump to top level if interrupted but
          not run any trap commands

                                   12/25
                                   -----
jobs.c
        - run_sigchld_trap: no longer set interrupt_immediately before calling
          parse_and_execute, even if this is no longer run in a signal handler
          context

input.c
        - getc_with_restart: add call to QUIT instead of CHECK_TERMSIG

parse.y
        - yy_stream_get: now that getc_with_restart calls QUIT, don't need to
          set interrupt_immediately (already had call to run_pending_traps)

execute_cmd.c
        - execute_subshell_builtin_or_function,execute_function,execute_in_subshell:
          setjmp_nosigs: call instead of setjmp when saving return_catch; don't
          need to manipulate signal mask
        - execute_subshell_builtin_or_function,execute_in_subshell:
          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
        - command_substitute: 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

trap.c
        - run_exit_trap: setjmp_nosigs: call instead of setjmp when saving
          return_catch; don't need to manipulate signal mask
        - run_exit_trap: 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
        - _run_trap_internal: setjmp_nosigs: call instead of setjmp when saving
          return_catch; don't need to manipulate signal mask

builtins/evalfile.c
        - _evalfile: setjmp_nosigs: call instead of setjmp when saving
          return_catch; don't need to manipulate signal mask

builtins/evalstring.c
        - evalstring: setjmp_nosigs: call instead of setjmp when saving
          return_catch; don't need to manipulate signal mask

shell.c
        - main: 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
        - run_one_command: 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
        - run_wordexp: 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

eval.c
        - reader_loop: save and restore the signal mask if we get a longjmp
          that doesn't cause us to return or exit (case DISCARD)

                                   12/26
                                   -----
parse.y
        - shell_input_line_{index,size,len}: now of type size_t; in some cases
          the unsigned property makes a difference
        - STRING_SAVER: saved_line_{size,index} now of type size_t
        - shell_getc: don't allow shell_input_line to grow larger than SIZE_MAX;
          lines longer than that are truncated until read sees a newline;
          addresses theoretical buffer overflow described by Paul Eggert
          <eggert@cs.ucla.edu>
        - set_line_mbstate: size_t changes like shell_getc
        - shell_getc: if shell_input_line is larger than 32K, free it and
          start over to avoid large memory allocations sticking around

variables.c
        - bind_global_variable: new function, binds value to a variable in
          the global shell_variables table

variables.h
        - bind_global_variable: new extern declaration

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.  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

subst.h
        - ASS_MKGLOBAL: new assignment flag, forcing global assignment even in
          a function context, used by declare -g

execute_cmd.c
        - fix_assignment_words: set W_ASSIGNARRAY flag if -a option given to
          declaration builtin

subst.c
        - do_assignment_internal: explicitly handle case where we are
          executing in a function and we want to create a global array or
          assoc variable
        - 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>, 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

                                 1/5/2013
                                 --------
quit.h
        - remove spurious call to itrace in CHECK_WAIT_INTR

bashline.c
        - bash_event_hook: if we're going to jump to top_level, make sure we
          clean up after readline() by calling rl_cleanup_after_signal().
          Fixes bug reported against devel branch by Raphaël Droz
          <raphael.droz@gmail.com>
        - bash_event_hook: reset the event hook before checking for signals
          or traps in case we longjmp

doc/{bash.1,bashref.texi}
        - small additions to the set -e section to make it more clear that
          contexts where -e is ignored extend to compound commands as well
          as shell functions

lib/readline/readline.h
        - rl_signal_event_hook: new extern declaration

lib/readline/input.c
        - rl_signal_event_hook: new variable, hook function to call when a
          function (currently just read(2)) is interrupted by a signal and
          not restarted
        - rl_getc: call rl_signal_event_hook instead of rl_event_hook

lib/readline/doc/rltech.texi
        - rl_signal_event_hook: document new function

bashline.c
        - changes to set rl_signal_event_hook instead of rl_event_hook

lib/readline/readline.h
        - change readline version numbers to 6.3

                                    1/6
                                    ---
doc/{bash.1,bashref.texi}
        - a couple of changes to the descriptions of the ERR trap and its
          effects based on a message from Rob Nagler <nagler@bivio.biz>

                                    1/9
                                    ---
expr.c
        - expassign: invalidate curlval before freeing and NULLing tokstr to
          avoid aliasing issues.  Fixes bug reported by Eduardo A. Bustamante
          López<dualbus@gmail.com>  and Dan Douglas <ormaaj@gmail.com>

braces.c
        - array_concat: don't be so aggressive in trying to short-circuit. We
          can only short-circuit if we have a single-element array where the
          element is an empty string (array[0] == "" array[1] = 0x0).  Existing
          practice requires us to replicate arrays and prefix or append empty
          strings.  Fixes bug reported by Eduardo A. Bustamante López
          <dualbus@gmail.com>

                                   1/11
                                   ----
execute_cmd.c
        - execute_builtin: since mapfile uses evalstring() to run its callbacks
          internally, just like eval, so it needs to handle the case where the
          temp environment given to mapfile persists throughout the entire
          set of callback commands.  This might be a problem with trap also, but
          trap isn't run in the same way.  Fixes bug reported by Dan Douglas
          <ormaaj@gmail.com>

                                   1/13
                                   ----
redir.c
        - redirection_error: before expanding the redirection word (if
          expandable_redirection_filename returns true), disable command
          substitution during expansion.  Fixes bug reported by Dan Douglas
          <ormaaj@gmail.com>

subst.c
        - expand_word_internal: case '\\': if the next character is an IFS
          character, and the expansion occurs within double quotes, and the
          character is not one for which backslash retains its meaning, add
          the (escaped) '\' and the (escaped) character.  Fixes bug reported
          by Dan Douglas <ormaaj@gmail.com>

                                   1/15
                                   ----
builtins/cd.def
        - cd_builtin: make sure call to internal_getopt handles -e option.
          Fixes bug reported by <mashimiao.fnst@cn.fujitsu.com>

                                   1/17
                                   ----
subst.c
        - expand_word_list_internal: make sure tempenv_assign_error is
          initialized to 0

execute_cmd.c
        - execute_simple_command: make sure tempenv_assign_error is reset to 0
          after it's tested to see if an error should force the shell to exit.
          Fixes problem where a the failure of a tempenv assignment preceding
          a non-special builtin `sticks' and causes the next special builtin
          to exit the shell.  From a discussion on bug-bash started by
          douxin <wq-doux@cn.fujitsu.com>

                                   1/20
                                   ----
subst.c
        - parameter_brace_expand_rhs: call stupidly_hack_special_variables
          after assigning with ${param[:]=word} even if IFS is changing.
          Suggested by Dan Douglas <ormaaj@gmail.com> [TENTATIVE, needs work
          on IFS side effects]

command.h
        - W_GLOBEXP (which was unused) is now W_SPLITSPACE (which isn't used
          yet)

{execute_cmd,subst,variables}.c
        - removed all code that mentioned W_GLOBEXP
        - removed mention of gnu_argv_flags and code that set it

                                   1/22
                                   ----
subst.c
        - param_expand: set W_SPLITSPACE if we expand (unquoted) $* and
          IFS is unset or null so we can be sure to split this on spaces
          no matter what happens with IFS later
        - expand_word_internal: note that param_expand returns W_SPLITSPACE
          in the returned word flags and keep track of that state with
          `split_on_spaces'

                                   1/23
                                   ----
subst.c
        - expand_word_internal: if split_on_spaces is non-zero, make sure
          we split `istring' on spaces and return the resultant word.  The
          previous expansions should have quoted spaces in the positional
          parameters where necessary.  Suggested by Dan Douglas
          <ormaaj@gmail.com>

execute_cmd.c
        - execute_command_internal: make sure any subshell forked to run a
          group command or user subshell at the end of a pipeline runs any
          EXIT trap it sets.  Fixes debian bash bug 698411
          http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=698411

subst.c
        - shell_expand_word_list: fix code that creates args for and calls
          make_internal_declare to avoid calling it twice (missing `else'
          in 12/26 change)
        - do_assignment_internal: fix code from 12/26 change to fix problem
          where an existing assoc variable could be converted to an array
          without checking `mkassoc'

                                   1/24
                                   ----
builtins/evalfile.c
        - _evalfile: add missing `close (fd)' calls before returning to
          avoid fd leaks.  Bug and fix from Roman Rakus <rrakus@redhat.com>

                                   1/25
                                   ----
builtins/read.def
        - read_builtin: don't try to play tricks with the top of the unwind-
          protect stack after read gets a SIGALRM; save input_string to new
          memory, run the stack, then restore input_string and assign the
          variables.  Part of fix for bug reported by konsolebox
          <konsolebox@gmail.com>; the rest of the fix is with the changes in
          trap and signal handling and doing away with interrupt_immediately

                                   1/26
                                   ----
redir.c
        - redirection_expand, write_here_string, write_here_document: before
          calling any of the word expansion functions, after setting
          expanding_redir to 1 (which bypasses the temp environment in the
          variable lookup functions), call sv_ifs to reset the cached IFS-
          related variables set by subst.c:setifs().  This ensures that
          redirections will not get any IFS values that are set in the
          temporary environment, as Posix specifies.  Then, after the word
          expansions, after resetting expanding_redir to 0, call sv_ifs
          again to make sure the cached IFS values are set from any
          assignments in the temporary environment.  We force executing_builtin
          to 1 to `fool' the variable lookup functions into using any temp
          environment, then reset it to its old value after sv_ifs returns.
          This is what allows read() to use the (cached) IFS variables set
          in the temp environment. Fixes inconsistency reported by Dan Douglas
          <ormaaj@gmail.com>

                                   1/29
                                   ----
lib/readline/display.c
        - update_line: fix off-by-one error when updating vis_lbreaks array
          in a multibyte locale that occurs when moving multibyte chars from
          one line down to another.  Bug report and fix from Egmont
          Koblinger <egmont@gmail.com>

                                   1/30
                                   ----
configure.ac
        - changed version to 4.3-alpha

redir.c
        - redir_open: handle open returning -1/EINTR, which seems to happen
          a lot with FIFOs and SIGCHLD, and call QUIT to handle other
          signals that can interrupt open(2).  Bug report and initial fix
          from Mike Frysinger <vapier@gentoo.org>

                                   1/31
                                   ----
subst.c
        - parameter_brace_expand: make sure to propagate the PF_ASSIGNRHS flag
          to parameter_brace_expand_word
        - parameter_brace_expand_word: make sure that if the PF_ASSIGNRHS flag
          is set and we are expanding ${a[@]} or ${a[*]} we set quoted to
          include Q_DOUBLE_QUOTES before calling array_value_internal, mirroring
          what we do for $@ and $*.  Fixes inconsistency reported by Dan
          Douglas <ormaaj@gmail.com>

configure.ac
        - use AC_CHECK_TOOL instead of AC_CHECK_PROG to check for ar, since it
          will find $host-prefixed versions of utilities.  Report and fix from
          Mike Frysinger <vapier@gentoo.org>

builtins/setattr.def
        - set_var_attribute: check whether bind_variable (called when the
          variable whose attributes are being modified is found in the temp
          environment) just modified a read-only global variable, and don't
          bother marking the temporary variable for propagation if so.  The
          propagation is superfluous and will result in a strange error
          message

                                    2/2
                                    ---
variables.c
        - initialize_shell_variables: don't try to import function definitions
          with invalid names from the environment if already in posix mode,
          but create them as (invisible) exported variables so they pass
          through the environment.  Print an error message so user knows
          what's wrong.  Fixes bug reported by Tomas Trnka <ttrnka@mail.muni.cz>

                                    2/9
                                    ---

builtins/read.def
        - sigalrm_seen, alrmbuf: now global so the rest of the shell (trap.c)
          can use them
        - sigalrm: just sets flag, no longer longjmps to alrmbuf; problem was
          longjmp without manipulating signal mask, leaving SIGALRM blocked

quit.h
        - move CHECK_ALRM macro here from builtins/read.def so trap.c:
          check_signals() can call it

trap.c
        - check_signals: add call to CHECK_ALRM before QUIT
        - check_signals_and_traps: call check_signals() instead of including
          CHECK_ALRM and QUIT inline.  Integrating check for read builtin's
          SIGALRM (where zread call to check_signals_and_traps can see it)
          fixes problem reported by Mike Frysinger <vapier@gentoo.org>

                                   2/12
                                   ----
lib/glob/xmbsrtowcs.c
        - xdupmbstowcs2: fixed but where end of string was not handled
          correctly, causing loop to go past end of string in a bunch of cases.
          Fixes bug reported by "Dashing" <dashing@hushmail.com>


                                   2/13
                                   ----
builtins/pushd.def
        - popd_builtin: treat any argument that isn't -n or of the form
          [-+][[:digit:]]* as an error.  Fixes problem reported by Bruce
          Korb <bruce.korb@gmail.com>

                                   2/14
                                   ----
configure.ac
        - add check for sig_atomic_t; already a placeholder for it in
          config.h.in

                                   2/15
                                   ----
subst.c
        - do_compound_assignment: don't call assign_compound_array_list with
          a NULL variable in case make_local_xxx_variable returns NULL
          (it will if you try to shadow a readonly or noassign variable).
          Fixes bug reported by Richard Tollerton <rich.tollerton@ni.com>

                                   2/16
                                   ----
variables.c
        - make_local_variable: print error messager if an attempt is made to
          create a local variable shadowing a `noassign' variable.  Previously
          we just silently refused to do it

trap.[ch]
        - get_original_signal: now global so rest of the shell can use it

sig.c
        - initialize_shell_signals: install a signal handler for SIGTERM
          that does nothing except set a sigterm_received flag instead of
          ignoring it with SIG_IGN, as long as SIGTERM is not ignored when
          the shell is started.  Use get_original_signal early to get the
          original handler, since we will do that later anyway
        - set_signal_handler: if installing sigterm_sighandler as the SIGTERM
          handler, make sure to add SA_RESTART flag to make it as close to
          SIG_IGN as possible

sig.h
        - sigterm_sighandler: new extern declaration

quit.h
        - RESET_SIGTERM: set sigterm_receved to 0
        - CHECK_SIGTERM: check sigterm_received; if it's non-zero, treat it
          as a fatal signal and call termsig_handler to exit the shell

jobs.c
        - make_child: call RESET_SIGTERM just before fork() so we can detect
          if the child process received a SIGTERM before it's able to change
          the signal handler back to what it was when the shell started
          (presumably SIG_DFL).  Only has effect if the shell installed
          sigterm_sighandler for SIGTERM, interactive shells that were not
          started with SIG_IGN as the SIGTERM handler
        - make_child: call RESET_SIGTERM in the parent after fork() so the
          rest of the shell won't react to it

execute_cmd.c
        - execute_simple_command: call CHECK_SIGTERM after make_child in child
          to catch SIGTERM received after fork() and before restoring old
          signal handlers
        - execute_disk_command: call CHECK_SIGTERM after make_child in child
          process after restoring old signal handlers and again just before
          calling shell_execve.  Fixes race condition observed by
          Padraig Brady <p@draigbrady.com> when testing with his `timeout'
          program

lib/readline/display.c
        - open_some_spaces: new function, subset of insert_some_chars that just
          opens up a specified number of spaces to be overwritten
        - insert_some_spaces: now just calls to open_some_spaces followed by
          _rl_output_some_chars
        - update_line: use col_temp instead of recalculating it using
          _rl_col_width in the case where we use more columns with fewer bytes
        - update_line: use open_some_spaces and then output the right number
          of chars instead of trying to print new characters then overwrite
          existing characters in two separate calls.  This includes removing
          some dodgy code and making things simpler.  Fix from Egmont
          Koblinger <egmont@gmail.com>
        - use new variable `bytes_to_insert' instead of overloading temp in
          some code blocks (nls - nfd, bytes that comprise the characters
          different in the new line from the old)

                                   2/18
                                   ----
redir.c
        - do_redirection_internal: add undoable redirection for the implicit
          close performed by the <&n- and >&n- redirections.  Fixes bug
          reported by Stephane Chazelas <stephane.chazelas@gmail.com>

                                   2/19
                                   ----
sig.c
        - termsig_handler: an interactive shell killed by SIGHUP and keeping
          command history will try to save the shell history before exiting.
          This is an attempt to preserve the save-history-when-the-terminal-
          window-is-closed behavior

                                   2/21
                                   ----
braces.c
        - brace_expand: if a sequence expansion fails (e.g. because the
          integers overflow), treat that expansion as a simple string, including
          the braces, and try to process any remainder of the string.  The
          remainder may include brace expansions.  Derived from SuSE bug
          804551 example (https://bugzilla.novell.com/show_bug.cgi?id=804551)

                                   2/23
                                   ----
{quit,sig}.h,sig.c
        - sigterm_received declaration now in sig.h; type is sig_atomic_t
        - sigwinch_received type now sig_atomic_t
        - sig.h includes bashtypes.h and <signal.h> if SIG_DFL not defined
          (same logic as trap.h) to pick up sig_atomic_t

unwind_prot.c
        - include sig.h before quit.h (reverse order)

                                   2/27
                                   ----
builtins/shopt.def
        - reset_shopt_options: make sure check_window_size is reset to the
          default from config.h, not unconditionally to 0

jobs.[ch]
        - last_made_pid, last_asynchronous_pid: now volatile.  Change from SuSE

jobs.c
        - wait_for: if we're using sigaction to install a handler for SIGCHLD,
          make sure we specify SA_RESTART

lib/{tilde,readline}/shell.c
        - get_home_dir: instead of looking in the password file every time,
          look once and cache the result

sig.[ch]
        - sigwinch_received, sigterm_received: now `volatile' qualified

sig.c,quit.h
        - interrupt_state,terminating_signal: now sig_atomic_t

                                    3/1
                                    ---
MANIFEST,examples/*
        - removed around 120 files without FSF copyrights; requested by
          Karl Berry in early January

                                    3/2
                                    ---
lib/malloc/malloc.c
        - morecore: only check whether SIGCHLD is trapped if SIGCHLD is defined

doc/bashref.texi
        - Fixed most of the examples in the GNU Parallel section to use better
          shell idioms following complaints on bug-bash; added a couple of
          examples and smoothed out the text

quit.h
        - include "sig.h" for sig_atomic_t

lib/readline/display.c
        - update_line: when inserting one or more characters at the end of
          the display line in a non-multibyte environment, just write from the
          first difference to the end of the line and return. We don't have
          to adjust _rl_last_c_pos.  This is needed to adjust from the old
          two-part copy to a single call to _rl_output_some_chars (change of
          2/16)

                                    3/4
                                    ---
Makefile.in,doc/Makefile.in
        - PACKAGE_TARNAME, docdir: new variables substituted by autoconf
        - OTHER_DOCS,OTHER_INSTALLED_DOCS: new variables with auxiliary
          documentation files to be installed into $(docdir)
        - install: add new rule to install $(OTHER_DOCS)
        - uninstall: add new rule to uninstall $(docdir)/$(OTHER_INSTALLED_DOCS)

doc/bash.1
        - add URL to `POSIX' file in `SEE ALSO' section; put pointer to that
          section in --posix and set -o posix descriptions

examples/
        - removed around 110 examples at the request of the FSF due to copyright
          issues

                                    3/5
                                    ---
builtins/setattr.def
        - readonly: modified help text slightly to make it clearer that
          functions aren't changed or displayed unless the -f option is given.
          Report from <gotmynick@gmail.com>

                                    3/9
                                    ---
include/typemax.h
        - SIZE_MAX: define to 65535 (Posix minimum maximum) if not defined

parse.y
        - include "typemax.h" for possible SIZE_MAX definition, make sure we
          include it after shell.h

{braces,expr}.c
        - include "typemax.h" for possible INTMAX_MIN and INTMAX_MAX definitions

                                   3/10
                                   ----
bashline.c
        - bash_default_completion: make sure completion type of `!' (same as
          TAB but with show-all-if-ambiguous set) and glob-word-completion
          sets rl_filename_completion_desired to 0 so extra backslashes don't
          get inserted by `quoting' the completion.  We can't kill all the
          matches because show-all-if-ambiguous needs them.   Bug report from
          Marcel (Felix) Giannelia <info@skeena.net>

[bash-4.3-alpha frozen]

                                   3/14
                                   ----
general.c
        - trim_pathname: use memmove instead of memcpy since the source and
          destination pathnames may overlap.  Report and fix from Matthew
          Riley <mattdr@google.com>

                                   3/18
                                   ----
configure.ac
        - socklen_t is defined as `unsigned int' if configure can't find it

                                   3/20
                                   ----
lib/readline/complete.c
        - S_ISVTX: since it's not defined on all platforms (Minix), make sure
          its use is protected with #ifdef

                                   3/21
                                   ----
doc/{bash.1,bashref.texi}
        - Added mention of ${!name[@]} and ${!name[*]} expansions to get all
          indices of an array.  Suggested by Jonathan Leffler
          <jonathan.leffler@gmail.com>

                                   3/24
                                   ----
subst.h
        - SD_IGNOREQUOTE: new define for skip_to_delim; if set, means that
          single quotes (for now) will be treated as ordinary characters

subst.c
        - skip_to_delim: handle SD_IGNOREQUOTE. no callers use it for now

                                   3/25
                                   ----
support/config.{guess,sub}
        - updated to versions from autoconf-2.69

                                   3/31
                                   ----
lib/sh/shquote.c
        - sh_single_quote: short-circuit quoting a single "'" instead of
          creating a long string with empty single-quoted strings

parser.h
        - DOLBRACE_QUOTE2: new define, like DOLBRACE_QUOTE, but need to single-
          quote results of $'...' expansion because quote removal will be
          done later.  Right now this is only done for ${word/pat/rep}

parse.y
        - parse_matched_pair: set state to DOLBRACE_QUOTE2 for pattern
          substitution word expansion so we don't treat single quote specially
          in the pattern or replacement string
        - parse_matched_pair: if we're parsing a dollar-brace word expansion
          (${...}) and we're not treating single quote specially within
          double quotes, single-quote the translation of $'...' ansi-c
          escaped strings.  Original report and fix from Eduardo A.
          Bustamante López <dualbus@gmail.com>

subst.c
        - extract_dollar_brace_string: ${word/pat/rep} scanning now sets the
          DOLBRACE_QUOTE2 flag instead of DOLBRACE_QUOTE so we don't treat
          single quotes specially within a double-quoted string

execute_cmd.c
        - fix_assignment_words: skip over assignment statements preceding a
          command word before trying to figure out whether or not assignment
          statements following a possible declaration command should be 
          treated specially.  Fixes bug reported by Dan Douglas
          <ormaaj@gmail.com>

                                    4/4
                                    ---
lib/readline/readline.c
        - _rl_dispatch_subseq: only call _rl_vi_set_last (and check whether
          the key is a text modification command) if the key sequence length
          is 1.  That keeps the arrow keys from setting the last command
          when called in vi command mode.  Fixes bug reported by Ian A.
          Watson <watson_ian_a@lilly.com>

                                    4/6
                                    ---
lib/readline/bind.c
        - rl_parse_and_bind: when parsing a double-quoted string as the value
          of a variable, make sure we skip past the leading double quote.
          Fix from Andreas Schwab <schwab@linux-m68k.org>

variables.c
        - hash_lookup: set new local variable last_table_searched to the table
          a successful lookup appears in; tested in make_local_variable to
          solve the problem below
        - make_local_variable: if we find a variable with the tempenv flag
          set at the same `level' as variable_context', but not found in the
          temporary_env (temp environment preceding the builtin), return it.
          The temp environment preceding the function call has already been
          merged (in execute_function) into the list of variable contexts the
          function sees as shell_variables by the time this is called.  Fixes
          inconsistency pointed out by Dan Douglas <ormaaj@gmail.com>

subst.c
        - expand_arith_string: expanded out contents of expand_string,
          expand_string_internal, expand_string_if_necessary to create a
          WORD_DESC and call call_expand_word_internal() on it directly.
          We don't want process substitution to be performed ( 1<(2) ) should
          mean something different in an arithmetic expression context.
          It doesn't work to just turn on the DQUOTE flag, since that means
          that things like ${x["expression"]} are not expanded correctly.
          Fixes problem pointed out by Dan Douglas <ormaaj@gmail.com>

                                   4/13
                                   ----
subst.c
        - process_substitute: run the EXIT trap before exiting, as other
          shells seem to.  Fixes problem pointed out by Dan Douglas
          <ormaaj@gmail.com>

lib/readline/readline.c
        - readline_internal_setup: call rl_vi_insertion_mode to enter vi
          mode instead of rl_vi_insert_mode to avoid resetting the saved last
          command information.  Posix says that `.' can repeat a command
          that was entered on a previous line so we need to save the info.
          Fixes bug reported by Ian A. Watson <watson_ian_a@lilly.com>

                                   4/14
                                   ----
lib/readline/complete.c
        - rl_completion_matches: make sure xrealloc returns something non-null
          (can happen when interrupted by a signal) before trying to add
          matches to match_list

subst.c
        - array_remove_pattern: return NULL right away if array_variable_part
          returns an invisible variable
        - array_length_reference: handle array_variable_part returning an
          invisible variable
        - get_var_and_type: handle array_variable_part returning an invisible
          variable

                                   4/15
                                   ----
execute_cmd.c
        - execute_command_internal: make sure to run the EXIT trap for group
          commands anywhere in pipelines, not just at the end.  From a point
          raised by Andreas Schwab <schwab@linux-m68k.org>

variables.c
        - bind_int_variable: make sure invisible flag is unset.  Fixes problems
          like "declare -ai a; : $(( a[4]=4 ));"

arrayfunc.c
        - array_variable_part: return variable even if invisible flag set,
          callers must handle invisible vars

                                   4/18
                                   ----
builtins/set.def
        - unset_builtin: if -n flag given, call unset_nameref instead of
          unset_variable

variables.c
        - find_variable_nameref: print warning message if nameref circular
          reference detected, return NULL and let caller deal with it

builtins/declare.def
        - declare_builtin: only disallow global references at this point if
          we are at the global scope

                                   5/16
                                   ----
configure.ac
        - update release status to beta

                                   5/23
                                   ----
trap.c
        - run_pending_traps: save and restore pipeline around calls to
          evalstring() in case we get a trap while running a trap. Have to
          figure out the recursive running traps issue elsewhere.  Fixes
          bug reported by Roman Rakus <rrakus@redhat.com>
        - run_pending_traps: make sure to set running_trap to the appropriate
          signal value when running a trap command
        - run_pending_traps: short-circuit immediately if running_trap set
          when invoked.  Could change this later to only skip if it would
          run the same trap as currently being run (running_trap == sig + 1)

configure.ac
        - add warning if bison not found

lib/readline/doc/rltech.texi
        - new section with an example program illustrating the callback
          interface. Suggested by Peng Yu <pengyu.ut@gmail.com>

examples/loadables/Makefile.in
        - remove references to `cut' and `getconf', which were removed in
          early March

                                   5/28
                                   ----
lib/sh/pathphys.c
        - sh_realpath: correct inverted two arguments to call to sh_makepath.
          Report and fix from Julien Thomas <jthomas@exosec.fr>

                                    6/7
                                    ---
execute_cmd.c
        - executing_line_number: the else clauses that are conditional on
          various options being defined can simply be if clauses -- they are
          mutually exclusive and all have `return' in the body.  Fixes bug
          reported by Flavio Medeiros <flaviomotamedeiros@gmail.com>

                                   6/25
                                   ----
lib/readline/readline.c
        - readline_internal_setup: only sent the meta-key enable string to the
          terminal if we've been told to use one and the terminal has been
          successfully initialized (RL_ISSTATE (RL_STATE_TERMPREPPED) != 0).
          Suggested by Dan Mick <dan.mick@inktank.com>

lib/readline/signals.c
        - _rl_signal_handler: call any defined signal hook after calling
          rl_resize_terminal when handling a SIGWINCH.  We already have called
          the original SIGWINCH handler but will not be resending the signal
          to ourselves

                                   6/27
                                   ----
lib/readline/doc/history.3, doc/bash.1
        - fix description of the `$' modifier to note that it expands to the
          last *word*, which is not always the last argument.  Report from
          ariyetz@gmail.com via gnu.org RT

                                   6/29
                                   ----
lib/glob/smatch.c
        - glob_asciiranges: initialize to value of GLOBASCII_DEFAULT instead
          of 0 (0 if not defined)

configure.ac,config.h.in
        - --enable-glob-asciiranges-default: new option, controls the value of
          GLOBASCII_DEFAULT; use it to turn globasciiranges shopt option on
          by default

doc/bashref.texi
        - document new --enable-glob-asciiranges-default configure option

variables.c
        - assign_in_env: implement += value appending semantics for assignments
          preceding command names

                                    7/4
                                    ---
expr.c
        - set lasttok = NUM in all of the functions that result in a number,
          even if it's a boolean, to avoid errors with constructs like
          1 * x = 1, which should be an asignment error.  Fixes problem
          pointed out by Dan Douglas <ormaaj@gmail.com>

parse.y
        - decode_prompt_string: don't bother to call strcpy if
          polite_directory_format returns its argument unchanged.  It's not
          necessary and Mac OS X 10.9 aborts because of a supposed overlapping
          string copy.  Bug and fix from simon@hitzemann.org

subst.c
        - parameter_brace_find_indir: new function, code from
          parameter_brace_expand_indir that looks up the indirectly-referenced
          variable, but does not expand it
        - parameter_brace_expand_indir: call parameter_brace_find_indir to
          look up indirected variable reference
        - get_var_and_type: call parameter_brace_find_indir if it looks like we
          are trying to manipulate an indirect variable reference like
          ${!b%%foo}.  This makes a difference if !b references an array
          variable.  Bug report from Dan Douglas <ormaaj@gmail.com>

                                    7/6
                                    ---
lib/sh/casemod.c
        - sh_modcase: make sure argument passed to is_basic is <= UCHAR_MAX,
          since cval can convert something to a wchar_t greater than UCHAR_MAX.
          Fixes bug reported by Tomasz Tomasik <scx.mail@gmail.com>

                                    7/8
                                    ---
lib/readline/history.c
        - add_history_time: if history_length == 0, referencing history_length
          - 1 will result in an array bounds error, so make history_length be
          at least 1 before going on.  Fixes bug reported by Geng Sheng Liu
          <gsliu.tju@gmail.com>

builtins/setattr.def
        - show_func_attributes: display definition (if NODEFS argument is 0) and
          attributes for a particular function; used by `declare -fp name'

builtins/declare.def
        - declare_internal: call show_func_attributes if -f supplied with -p.
          Fixes inconsistency observed by Linda Walsh <bash@tlinx.org>

builtins/common.h
        - new extern declaration for show_func_attributes

builtins/read.def
        - read_builtin: check the first supplied variable name for validity
          before attempting to read any input, since we know we will have to
          at least use that one.  Don't check any other names yet.  Suggested
          by jidanni@jidanni.org

                                   7/10
                                   ----
redir.c
        - do_redirection_internal: when closing a file descriptor with
          r_close_this ([n]<&-) count close errors as redirection errors if
          errno ends up as EIO or ENOSPC.  Originally reported back in April
          2012 by Andrey Zaitsev <jstcdr@gmail.com>

                                   7/11
                                   ----
redir.c
        - do_redirection_internal: before calling check_bash_input, make sure
          that we don't call check_bash_input for an asynchronous process that
          is replacing stdin with something else. The seek backwards affects
          the parent process as well, since parents and children share the
          file pointer. Fixes problem originally reported in March 2013 by
          Martin Jackson <mjackson220.list@gmail.com>

                                   7/13
                                   ----
doc/{bash.1,bashref.texi}
        - slight change to add a description of `shopt -o' suggested by Bruce
          Korb <bruce.korb@gmail.com>

                                   7/19
                                   ----
lib/readline/histfile.c
        - history_do_write: if close returns < 0, make sure we restore the
          backup history file and return a non-zero value
        - history_truncate_file: if write or close return < 0, make sure we
          return a non-zero value

[bash-4.3-beta frozen]

                                   7/21
                                   ----
lib/readline/isearch.c
        - rl_display_search: now takes an entire search context flags word as
          the second argument, instead of just reverse flag; changed callers
        - rl_display_search: if the search has failed, add `failed ' to the
          beginning of the search prompt
        - _rl_isearch_dispatch: if the search has failed, display the entire
          search string with an indication that the search failed but with the
          last matching line.  Suggested by jidanni@jidanni.org

command.h
        - W_ASSIGNINT: new word flag; used internally for make_internal_declare
          and set by fix_assignment_words

execute_cmd.c
        - fix_assignment_words: set W_ASSIGNINT if compound assignment and -i
          given as option.  We don't do anything with the value yet

subst.c
        - shell_expand_word_list: rework the way the option list that is
          passed to make_internal_declare is created

                                    8/1
                                    ---
doc/{bash.1,bashref.texi}
        - minor changes to description of $! based on a report from Chris
          Down <chris@chrisdown.name>

arrayfunc.c
        - assign_array_element_internal: before trying to get an array's max
          index to process a negative subscript, make sure the array exists.
          Bug report from Geir Hauge <geir.hauge@gmail.com>

                                    8/2
                                    ---
arrayfunc.c
        - assign_array_element_internal: before using array_max_index() when
          processing a negative subscript, make sure the variable is an array.
          if it's not, use 0 as array_max_index assuming it's a string.
          Fixes bug report from Geir Hauge <geir.hauge@gmail.com>

                                    8/3
                                    ---
Makefile.in
        - pcomplete.o: add dependency on $(DEFDIR)/builtext.h. Suggested by
          Curtis Doty <curtis@greenkey.net>

                                    8/5
                                    ---
lib/glob/sm_loop.c
        - strcompare: short-circuit and return FNM_NOMATCH if the lengths of the
          pattern and string (pe - p  and se - s, respectively) are not equal
        - strcompare: don't bother trying to set *pe or *se to '\0' if that's
          what they already are.  Fixes bug reported by Geir Hauge
          <geir.hauge@gmail.com>

                                    8/6
                                    ---
doc/{bash.1,bashref.texi},builtins/hash.def,lib/readline/doc/rluser.texi
        - minor typo changes from Geir Hauge <geir.hauge@gmail.com>

bultins/help.def
        - show_longdoc: avoid trying to translate the empty string because it
          often translates to some boilerplate about the project and
          translation.  Report and fix from Geir Hauge <geir.hauge@gmail.com>

                                    8/8
                                    ---
builtins/help.def
        - help_builtin: try two passes through the list of help topics for each
          argument: one doing exact string matching and one, if the first pass
          fails to find a match, doing string prefix matching like previous
          versions.  This prevents `help read' from matching both `read' and
          `readonly', but allows `help r' to match everything beginning with
          `r'.  Inspired by report from Geir Hauge <geir.hauge@gmail.com>

                                   8/13
                                   ----
builtins/fc.def
        - fc_builtin,fc_gethnum: calculate `real' end of the history list and
          use it if -0 is specified as the beginning or end of the history
          range to list.  Doesn't work for fc -e or fc -s by design.  Feature
          requested by Mike Fied <micfied@gmail.com>

                                   8/16
                                   ----
trap.c
        - _run_trap_internal: use {save,restore}_parser_state instead of
          {save,restore}_token_state. It's more comprehensive

                                   8/23
                                   ----
doc/bash.1
        - disown: remove repeated text.  Report and fix from Thomas Hood
          <jdthood@gmail.com>

                                   8/25
                                   ----
lib/readline/rltty.c
        - set_special_char: fix prototype (last arg is rl_command_func_t *)

sig.c
        - set_signal_handler: return oact.sa_handler only if sigaction
          succeeds; if it doesn't, return SIG_DFL (reasonable default).  From
          https://bugzilla.redhat.com/show_bug.cgi?id=911404

bashline.c
        - attempt_shell_completion: fix to skip assignment statements preceding
          command name even if there are no programmable completions defined.
          From https://bugzilla.redhat.com/show_bug.cgi?id=994659
        - attempt_shell_completion: if still completing command word following
          assignment statements, do command completion even if programmable
          completion defined for partial command name entered so far

                                   8/26
                                   ----
pcomplete.c
        - pcomp_filename_completion_function: make sure rl_filename_dequoting_function
          is non-NULL before trying to call it.  Bug and fix from
          Andreas Schwab <schwab@linux-m68k.org>

bashline.c
        - bash_command_name_stat_hook: if *name is not something we're going
          to look up in $PATH (absolute_program(*name) != 0), just call the
          usual bash_filename_stat_hook and return those results.  This makes
          completions like $PWD/exam[TAB] add a trailing slash

                                    9/2
                                    ---
builtins/read.def
        - read_builtin: before comparing what we read to the delim, make sure
          we are not supposed to be ignoring the delimiter (read -N).  We
          set the delim to -1, but it's possible to read a character whose
          int value ends up being between -1 and -128.  Fixes bug
          reported by Stephane Chazelas <stephane.chazelas@gmail.com>

doc/{bash.1,bashref.texi}
        - word splitting: crib some language from Posix to make it clear that
          characters in IFS are treated as field *terminators*, not field
          *separators*.  Addresses issue raised by DJ Mills
          <danielmills1@gmail.com>

lib/readline/{util.c,rldefs.h}
        - _rl_stricmp,_rl_strnicmp: now take const char * string arguments;
          changed prototype declarations

                                    9/5
                                    ---
doc/{bash.1,bashref.texi}
        - [[: modify description of pattern matching to make it clear that the
          match is performed as if the extglob option were enabled.  From Red
          Hat bug https://bugzilla.redhat.com/show_bug.cgi?id=1002078

                                   9/12
                                   ----
lib/readline/isearch.c
        - _rl_isearch_dispatch: if we read an ESC and it's supposed to
          terminate the search, make sure we check for typeahead with
          _rl_pushed_input_available, since installing a hook function causes
          typeahead to be collected in `ibuffer' (input.c).  If there is any,
          make sure we still use the ESC as a prefix character.  Bug and fix
          from Mike Miller <mtmiller@ieee.org>

                                   9/16
                                   ----
builtins/{caller,cd,kill,pushd,wait}.def
        - builtin_usage(): make sure call to this sets return status to
          EX_USAGE

                                   9/18
                                   ----
terminal.c
        - rl_change_environment: new application-settable variable; if non-
          zero (the default), readline will modify LINES and COLUMNS in the
          environment when it handles SIGWINCH
        - _rl_get_screen_size: if rl_change_environment is non-zero, use setenv
          to modify LINES and COLUMNS environment variables

readline.h
        - rl_change_environment: new extern declaration for applications

                                   9/22
                                   ----
configure.ac
        - relstatus: bumped version to bash-4.3-beta2

                                   9/24
                                   ----

lib/readline/readline.c
        - bind_arrow_keys_internal: added more key bindings for the numeric key
          pad arrow keys on mingw32.  Patch from Pierre Muller
          <pierre.muller@ics-cnrs.unistra.fr>

                                   10/19
                                   -----

bashline.c
        - maybe_restore_tilde: version of restore_tilde that honors `direxpand';
          calls restore_tilde after saving directory expansion hook if
          necessary.  Report from Andreas Schwab <schwab@linux-m68k.org>

builtins/cd.def
        - -@: new option, allows cd to use `extended attributes' present in
          NFSv4, ZFS; idea taken from ksh93.  Attributes associated with a
          file are presented as a directory containing the attributes as
          individual files.  Original patch contributed by Cedric Blancher
          <cedric.blancher@gmail.com>

                                   10/20
                                   -----
aclocal.m4
        - BASH_CHECK_MULTIBYTE: check for wcwidth being broken with unicode
          combining characters needs a value to use when cross-compiling.
          Bug report from Bert Sutherland <bertsutherland@gmail.com>

doc/{bash.1,bashref.texi}
        - document new -@ option to cd builtin

                                   10/28
                                   -----
lib/glob/{{gmisc,glob}.c,glob.h}
        - extglob_pattern renamed to extglob_pattern_p, declared in glob.h

subst.c
        - expand_word_internal: typo fix: case to fix " $@\ " bug in bash-4.2
          had a typo (& isexp instead of &&)

                                   10/29
                                   -----
input.c
        - getc_with_restart: make sure local_index and local_bufused are
          reset to 0 before returning EOF, in case we are running an interactive
          shell without line editing and ignoreeof is set.  Report and fix
          from Yong Zhang <yong.zhang@windriver.com>

lib/readline/search.c
        - _rl_nsearch_init: take out extra third argument to rl_message; it
          only matches prototype (and maybe format) in cases where
          PREFER_STDARG and USE_VARARGS are both undefined, which is rare

                                   10/31
                                   -----
subst.c
        - process_substitute: when opening the named pipe in the child, open
          without O_NONBLOCK to avoid race conditions.  Happens often on AIX.
          Bug report and fix from Michael Haubenwallner
          <michael.haubenwallner@salomon.at>

builtins/ulimit.def
        - RLIMIT_NTHR: if RLIMIT_PTHREAD is not defined, but RLIMIT_NTHR is,
          use RLIMIT_NTHR (NetBSD)

                                   11/5
                                   ----
locale.c
        - set_default_locale_vars,set_locale_var: if TEXTDOMAINDIR has been
          set, and default_dir has a non-null value, call bindtextdomain(3)
          when TEXTDOMAIN is assigned a value.  Fixes problem reported by
          Michael Arlt <qwertologe@googlemail.com>

                                   11/6
                                   ----
builtins/cd.def
        - cdxattr: only create synthetic pathname in `buf' if NDIRP argument
          is non-null
        - change_to_directory: if we have specified -@ and cdxattr returns
          failure, fail immediately.  Fixes bug reported by Joshuah Hurst
          <joshhurst@gmail.com>

                                   11/12
                                   -----
redir.c
        - print_redirection: change r_err_and_out (&>) and its append form,
          r_append_err_and_out (&>>) cases to separate redirection operator
          from filename by a space, in case we have a process substitution.
          Fixes bug reported by admn ombres <admn.ombres@gmail.com>

                                   11/15
                                   -----
execute_cmd.c
        - execute_simple_command: don't close process substitution fds until
          we are finished executing any current shell function.  Partial fix
          for bug reported by John Dawson <john.dawson@gmail.com>

support/shobj-conf
        - add support for Darwin 13 (Mac OS X 10.9, Mavericks).  Based on a
          report by Ludwig Schwardt <ludwig.schwardt@gmail.com>

                                   11/20
                                   -----
[bash-4.3-rc1 frozen]

                                   11/24
                                   -----
builtins/printf.def
        - bind_printf_variable: make sure that the variable assigned to is
          no longer marked as invisible. Fixes bug reported by NBaH
          <nbah@sfr.fr>

                                   11/28
                                   -----
jobs.c
        - delete_old_job: fix off-by-one error in job index in call to
          internal_warning. Bug report from Peter Cordes <peter@cordes.ca>

                                   11/30
                                   -----
doc/bashref.texi
        - add string to description of special parameters with name of
          special parameter prefixed by a $, so you can search for $#,
          for instance

                                   12/2
                                   ----
lib/readline/{histexpand.c
        - get_history_event: account for current_history() possibly returning
          NULL. Report and fix from Pankaj Sharma <pankaj.s01@samsung.com>


                                   12/11
                                   -----

lib/readline/parse-colors.c
        - get_funky_string: don't call abort if we see something we can't
          parse; just return an error
        - _rl_parse_colors: if we encounter an error while parsing $LS_COLORS
          we need to leave _rl_color_ext_list as NULL after freeing its
          elements, then turn off _rl_colored_stats. Report and fix from Martin
          Wesdorp <mwesdorp@casema.nl>

                                   12/13
                                   -----

lib/readline/parse-colors.c
        - _rl_parse_colors: if we encounter an unrecognized prefix, throw an
          error but try to recover and go on to the next specification

variables.c
        - make_local_variable: for new variables this function creates, set
          the att_invisible attribute.  All callers from declare_internal.
          Indirectly, this is a fix for bug with `declare -n var; var=foo;'
          reported by Pierre Gaston <pierre.gaston@gmail.com>
        - bind_variable: if assigning to nameref variable that doesn't have
          a value yet (e.g., with `declare -n var; var=foo'), don't try to
          use the unset name. Fixes a segfault reported by Pierre Gaston
          <pierre.gaston@gmail.com>

execute_cmd.c
        - execute_command_internal: make sure last_command_exit_value is set
          to 0 after any command executed in the background.  Fixes bug
          reported by Martin Kealey <martin@kurahaupo.gen.nz>

                                   12/17
                                   -----
support/config.{guess,sub}
        - updated to latest versions from git

                                   12/19
                                   -----
parse.y
        - struct STRING_SAVER: now has a new `flags' element, to identify the
          caller: alias expansion, double-paren parsing, or parse_and_execute
        - push_string: now sets flags to PSH_ALIAS if `ap' argument is non-NULL
        - push_string: now doesn't attempt to call strlen on a NULL string to
          set shell_input_line_size
        - parser_expanding_alias, parser_save_alias, parser_restore_alias: new
          functions to provide an external interface to push_string and
          pop_string; parser_save_alias sets flags element to PSH_SOURCE (could
          be renamed PSH_EXTERN someday)
        - shell_getc: when yy_getc returns '\0', instead of just testing
          whether the pushed_string_list is not-empty before popping it, don't
          pop if if the saved string has flags PSH_SOURCE, indicating that
          parse_and_execute set it before setting bash_input to the string.
          We should continue reading to the end of that string before popping
          back to a potential alias. Partial solution for the problem of aliases
          with embedded newlines containing `.' commands being executed out of
          order reported by Andrew Martin <andrew.martin@gmail.com>
        - shell_getc: when yy_getc returns '\0' and there is a saved string of
          type PSH_SOURCE, restart the read without popping the string stack
          if we have not read to the end of bash_input.location.string.  Rest
          of fix for out-of-order execution problem

externs.h
        - parser_expanding_alias, parser_save_alias, parser_restore_alias: new
          extern function declarations

builtins/evalstring.c
        - pe_prologue: if the parser is expanding an alias, make sure to add
          an unwind-protect to restore the alias; undoes the work that will be
          performed by parse_and_execute/parse_string
        - parse_and_execute,parse_string: after calling push_stream to save
          bash_input, check whether or not the parser is currently expanding
          an alias (parser_expanding_alias() != 0). If it is, we want to save
          that string in the pushed_string_list, which we do with
          parser_save_alias.

                                   12/23
                                   -----
execute_cmd.c
        - execute_for_command: make sure to set line_number before expanding
          the word list, so expansion errors have the right line number.
          From a report from Ben Okopnik <ben@okopnik.com>

expr.c
        - exp2: save token pointer before calling readtok(), arrange to use
          saved token pointer when printing error token on a division by 0
          error

                                   12/27
                                   -----
lib/readline/display.c
        - rl_redisplay: when calculating effects of invisible characters in a
          prompt that is split across physical screen lines to set the indices
          of linebreaks, don't bother testing local_prompt_prefix (line 751).
          That prefix doesn't matter when calculating prompt visible and
          invisible characters.  Fixes problem reported by Jinesh Choksi
          <jinesh@onelittlehope.com>

Makefile.in
        - install: make sure to use $(DESTDIR) when installing OTHER_DOCS.
          Report and fix from Matthias Klose <doko@debian.org>

doc/texinfo.tex
        - updated to version of 2013-09-11

                                   12/28
                                   -----
lib/readline/undo.c
        - rl_do_undo: if we are undoing from a history entry (rl_undo_list ==
          current_history()->data), make sure the change to rl_line_buffer is
          reflected in the history entry. We use the guts of
          rl_maybe_replace_line to do the work.  Fixes problem reported by
          gregrwm <backuppc-users@whitleymott.net>

                                   12/30
                                   -----
sig.c
        - sigint_sighandler: if we get a SIGINT (and this signal handler is
          installed) while the wait builtin is running, note that we received
          it in the same way as jobs.c:wait_sigint_handler and return.  The
          various wait_for functions will look for that with CHECK_WAIT_INTR.
          This fixes the wait builtin not being interruptible in an interactive
          job control shell

                                   12/31
                                   -----
trap.c
        - set_signal_hard_ignored: rename set_signal_ignored to this, since it
          both sets original_signals[sig] and sets the HARD_IGNORE flag
        - set_signal_ignored: new function, now just sets original_signals[sig]

trap.h
        - set_signal_hard_ignored: new external declaration

sig.c
        - initialize_terminating_signals: call set_signal_hard_ignored instead
          of set_signal_ignored for signals with disposition SIG_IGN when the
          shell starts

execute_cmd.c
        - setup_async_signals: make sure we get the original dispositions for
          SIGINT and SIGQUIT before starting the subshell, and don't call
          set_signal_ignored  because that sets original_signals[sig].  If we
          don't, subsequent attempts to reset handling using trap will fail
          because it thinks the original dispositions were SIG_IGN. Posix
          interpretation 751 (http://austingroupbugs.net/view.php?id=751)

                                 1/2/2014
                                 --------
lib/sh/stringvec.c
        - strvec_mcreate, strvec_mresize: versions of create and resize that
          use malloc and realloc, respectively, instead of xmalloc/xrealloc

braces.c
        - expand_amble,mkseq: use strvec_mcreate/strvec_mresize so we can
          catch and handle memory allocation failures instead of aborting
          with the xmalloc/xrealloc interface

lib/sh/strdup.c
        - strdup replacement function for ancient systems that don't have it

lib/sh/itos.c
        - mitos: new function, itos that uses strdup instead of savestring

externs.h
        - strvec_mcreate/strvec_mresize: new extern declarations
        - mitos: new extern declaration

configure.ac
        - bash version moved to 4.3-rc2

                                    1/6
                                    ---
doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
        - separate the description of what happens when readline reads the
          tty EOF character from the description of delete-char, leaving a
          note in the delete-char description about common binding for ^D.
          From suggestion by Parke <parke.nexus@gmail.com>

lib/readline/doc/{version.texi,history.3,*.texi}
        - updated email addresses and copyright dates

                                    1/7
                                    ---
variables.c
        - delete_var: new function, just removes a variable from a hash table
          and frees it, without doing anything else
        - make_variable_value: if we are trying to assign to a nameref variable,
          return NULL if the value is null or the empty string or not a valid
          identifier

variables.h
        - delete_var: new extern declaration

subst.h
        - ASS_NAMEREF: new define for assignments, means assigning to a nameref
          variable

builtins/declare.def
        - declare_internal: if we are creating and assigning to a nameref
          variable, make sure the value is a valid variable name (checks done
          by make_variable_value via bind_variable_value) and display an
          error message, deleting the variable we just created, if it is not.
          Fixes bug reported by Peggy Russell <prusselltechgroup@gmail.com>

                                    1/9
                                    ---
builtins/declare.def
        - declare_internal: turning on nameref attribute for an existing
          variable turns off -i/-l/-u/-c attributes (essentially the ones
          that cause evaluation at assignment time) for ksh93 compat

builtins/setattr.def
        - show_name_attributes: if asked to display attributes and values for
          a nameref variable, don't follow the nameref chain to the end. More
          ksh93 compat

                                   1/10
                                   ----
trap.c
        - _run_trap_internal: use {save,restore}_parser_state instead of
          {save,restore}_token_state, like in run_pending_traps(); don't
          need to save and restore last_command_exit_value as a result
        - _run_trap_internal: call {save,restore}_pipeline like in
          run_pending_traps()
        - run_pending_traps: since we no longer run traps in a signal handler
          context, do not block and unblock the trapped signal while the
          trap is executing
        - run_pending_traps: allow recursive invocations (basically, running
          traps from a trap handler) with only a warning if the shell is
          compiled in debug mode.  If a caller doesn't want this to happen,
          it should test running_trap > 0. signal_in_progress (sig) only works
          for the signals the shell handles specially

bashline.c
        - bash_event_hook: make sure we clean up readline if interrupt_state
          is set, not only when SIGINT is not trapped.  check_signals_and_traps
          will call check_signals, which calls QUIT, which will longjmp back
          to top_level, running the interrupt trap along the way.  Fixes the
          problem of signal handlers being reset out from under readline, and
          not being set properly the next time readline is called, because
          signals_set_flag is still set to 1.  XXX - might need to do this
          for other signals too?

                                   1/11
                                   ----
subst.h
        - SD_GLOB: new define for skip_to_delim; means we are scanning a
          glob pattern.

subst.c
        - skip_to_delim: if flags include SD_GLOB, assume we are scanning a
          glob pattern.  Currently only used to skip bracket expressions
          which may contain one of the delimiters

                                   1/12
                                   ----
subst.c
        - parameter_brace_expand: when expanding $@ as part of substring
          expansion, pattern substitution, or case modification, don't turn
          on the QUOTED_NULL flag.  The code that constructs the word to be
          returned from expand_word_internal expects a different code path
          when $@ is being expanded.  Fixes bug reported by Theodoros
          V. Kalamatianos <thkala@gmail.com>

                                   1/19
                                   ----
subst.c
        - list_dequote_escapes: new function; analogue of list_quote_escapes

pathexp.c
        - quote_string_for_globbing: fix case where unescaped ^A is last char
          in string; need to pass it through unaltered instead of turning it
          into a bare backslash
        - quote_string_for_globbing: when quoting for regexp matching in [[,
          don't treat backslash as a quote character; quote the backslash as
          any other character.  Part of investigation into reports from
          Eduardo A. Bustamante López <dualbus@gmail.com>

                                   1/25
                                   ----
builtins/gen-helpfiles.c
        - write_helpfiles: add prototype
        - make sure to #undef xmalloc/xfree/xrealloc/free if USING_BASH_MALLOC
          is defined. the code does not use them, and we don't link against
          xmalloc.o. Report from Linda Walsh <bash@tlinx.org>

Makefile.in
        - variables.o: add dependency on builtins/builtext.h; helps with
          parallel builds.  Report from Linda Walsh <bash@tlinx.org>

support/shobj-conf
        - darwin: combine the stanzas into one that will not require them to
          be updated on each Mac OS X release.  Report and fix from Max Horn
          <max@quendi.de>

                                   1/27
                                   ----
support/shobj-conf
        - darwin: changed the install_name embedded into the shared library
          to contain only the major version number, not the minor one. The
          idea is that the minor versions should all be API/ABI compatible,
          and it is better to link automatically with the latest one.  Idea
          from Max Horn <max@quendi.de>

                                   1/29
                                   ----
[bash-4.3-rc2 released]

                                   1/30
                                   ----
lib/readline/readline.h
        - rl_clear_history, rl_free_keymap: add extern declarations.  Report
          from Hiroo Hayashi <hiroo.hayashi@computer.org>

general.c
        - include trap.h for any_signals_trapped() prototype

lib/sh/unicode.c
        - include <stdio.h> for sprintf prototype

                                   1/31
                                   ----
execute_cmd.c
        - execute_simple_command: only posix-mode shells should exit on an
          assignment failure in the temporary environment preceding a special
          builtin. This is what the documentation and code comments have
          always said
        - execute_simple_command: make sure redirection errors, word expansion
          errors, and assignment errors to Posix special builtins cause a
          non-interactive posix mode shell to exit.  Previously the shell
          would not exit if the failed special builtin was on the LHS of ||
          or &&

pathexp.c
        - quote_string_for_globbing: when quoting a regular expression
          (QGLOB_REGEXP), allow an unquoted backslash to pass through
          unaltered. Don't use it as a quote character or quote it.  More
          investigation from 1/24 and report by Mike Frysinger
          <vapier@gentoo.org>
        - quote_string_for_globbing: when quoting a regular expression
          (QGLOB_REGEXP), turn CTLESC CTLESC into CTLESC without adding a
          backslash to quote it. We should not have to quote it because it is
          not a character special to EREs. More investigation from 1/24

lib/glob/glob.c
        - glob_testdir: now takes a second flags argument (currently unused);
          changed prototype and callers

                                    2/1
                                    ---
lib/glob/glob.c
        - glob_testdir: if flags argument includes GX_ALLDIRS (globstar), use
          lstat so we skip symlinks when traversing the directory tree.
          Originally reported by Chris Down <chris@chrisdown.name>

                                    2/2
                                    ---
lib/readline/undo.c
        - rl_do_undo: make sure CUR is non-zero before dereferencing it to
          check cur->data against rl_undo_list.  Report and fix from
          Andreas Schwab <schwab@linux-m68k.org>

doc/{bash.1,bashref.texi}
        - added slight clarifying language to the description of $*,
          describing what happens when the expansion is not within double
          quotes

                                    2/4
                                    ---
test.c
        - unary_test: add code to -v case so that it interprets `bare' array
          references (foo[1]) and returns true if that index has a value

                                    2/5
                                    ---
trap.c
        - restore_default_signal: fix SIGCHLD special case for SIG_TRAPPED flag
          off but SIG_INPROGRESS mode set and handler IMPOSSIBLE_TRAP_HANDLER;
          continue with resetting handler in this case. maybe_set_sigchld_trap
          will check these things before resetting sigchld trap from
          run_sigchld_trap.  Fixes (apparently long-standing?) problem reported
          by Alexandru Damian <alexandru.damian@intel.com>

                                    2/6
                                    ---
lib/sh/strtrans.c
        - ansic_quote: fixed a bug when copying a printable character that
          consumes more than one byte; byte counter was not being incremented.
          Bug report from jidanni@jidanni.org

                                    2/7
                                    ---
input.c
        - getc_with_restart: if read(2) returns -1/EINTR and interrupt_state or
          terminating_signal is set (which means QUIT; will longjmp out of this
          function), make sure the local buffer variables are zeroed out to
          avoid reading past the end of the buffer on the next call.  Bug report
          from Dan Jacobson <jidanni@jidanni.org>

                                    2/9
                                    ---
bashline.c
        - command_word_completion_function: if a directory in $PATH contains
          quote characters, we need to quote them before passing the candidate
          path to rl_filename_completion_function, which performs dequoting on
          the pathname it's passed.  Fixes bug reported by Ilyushkin Nikita
          <ilyushkeane@gmail.com>

                                   2/11
                                   ----
parse.y
        - xparse_dolparen: save and restore shell_eof_token around call to
          parse_string, intead of just leaving it set to ')'
        - shell_getc: when -v is set, only print the command line when
          shell_eof_token is 0, so we don't print it multiple times when
          recursively entering the parser to parse $(...) commands.  Fixes
          bug reported by Greg Wooledge <wooledg@eeg.ccf.org>

[changed release status to 4.3-release]

                                   2/13
                                   ----
lib/sh/strtrans.c
        - ansic_quote: handle case where mbrtowc reports that the multibyte
          sequence is incomplete or invalid.  Fixes bug reported by
          Eduardo A. Bustamante López <dualbus@gmail.com>

                                   2/14
                                   ----
variables.c
        - find_variable_nameref_context: fix a problem that caused the loop
          to go one context too close to the global context.  In some cases,
          simple variable assignment would set a variable in the global
          context instead of a local context.  Bug report from
          Geir Hauge <geir.hauge@gmail.com>