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Diffstat (limited to 'usr/src/lib/libshell/common/RELEASE')
| -rw-r--r-- | usr/src/lib/libshell/common/RELEASE | 1455 |
1 files changed, 1455 insertions, 0 deletions
diff --git a/usr/src/lib/libshell/common/RELEASE b/usr/src/lib/libshell/common/RELEASE new file mode 100644 index 0000000000..034ca7033d --- /dev/null +++ b/usr/src/lib/libshell/common/RELEASE @@ -0,0 +1,1455 @@ +07-04-18 --- Release ksh93s+ --- +07-04-18 A small memory leak with each redirection of a non-builtin has + been fixed. +07-03-08 A bug in which set +o output command line options has been fixed. +07-03-08 A bug in which an error in read (for example, an invalid variable + name), could leave the terminal in raw mode has been fixed. +07-03-06 A bug in which read could core dump when specified with an array + variable with a subscript that is an arithmetic expression has + been fixed. +07-03-06 Several serious bugs with the restricted shell were reported and + fixed. +07-03-02 If a job is stopped, and subsequently restarted with a CONT + signal and exits normally, ksh93 was incorrectly exiting with + the exit status of the stop signal number. +07-02-26 M-^L added to emacs mode to clear the screen. +07-02-26 A bug in which setting a variable readonly in a subshell would + cause an unset error when the subshell completed has been fixed. +07-02-19 The format with printf uses the new = flag to center the output. +07-02-19 A bug in which ksh93 did not allow multibyte characters in + identifier names has been fixed. +07-02-19 A bug introduced in ksh93 that causes global compound variable + definitions inside functions to exit with "no parent" has been fixed. +07-02-19 A bug in which using compound commands in process redirection + arguments would give syntax errors <(...) and >(...) has been fixed. +07-01-29 A bug which caused the shell to core dump which can occur when a + built-in exits without closing files that it opens has been fixed. +07-01-26 A bug in which ~(E) in patterns containing \ that are not inside () + has been fixed. + +06-12-29 --- Release ksh93s --- +06-12-29 A bug in which the value of IFS could be changed after a command + substitution has been fixed. +06-12-22 /dev/(tcp|udp|sctp)/HOST/SEVRICE now handles IPv6 addresses on + systems that provide getaddrinfo(3). +06-12-19 A -v option was added to read. With this option the value of + the first variable name argument will become the default value + when read from a terminal device. +06-11-20 A bug in which "${foo[@]:1}}" expands a null argument (instead of + no argument), when foo[0] is not empty has been fixed. +06-11-16 The discipline functions have been modified to allow each subscript + to act independently. Currently the discipline function will not + be called when called from a discipline function of the same variable. +06-11-14 A bug which could cause a core dump if a file descriptor for + an internal file was closed from with a subshell has been fixed. +06-10-30 The redirections <# pattern, and <## pattern have been added. + Both seek forward to the beginning of the next line that contains + the pattern. The <## form copies the skipped portion to standard + output. +06-10-26 On systems that support stream control transport, the virtual file + name /dev/sctp/host/port can now be used to establish connections. +06-10-26 The printf modifier # when used with d produces units in thousands + with a single letter suffix added. The modifier # when used with + the i specification provides units of 1024 with a two letter suffix. +06-10-24 The value of $! is now set to the process id of a job put + into the background with the bg command as required by POSIX. +06-10-23 A bug in which the value of $! was affected by a background + job started from a subshell has been fixed. +06-10-23 A bug in ${var:offset:len} in multibyte locales has been fixed. +06-10-15 The remaining math functions from C99 were added for any system + that supports them. +06-10-13 The klockwork.com software detected a few coding errors that + have been fixed. +06-10-12 A bug when skipping over `...` with ${x:=`...`} when x is set + has been fixed. +06-10-11 A bug in process floating constants produced by the %a format + of printf has been fixed. +06-10-06 A bug in which IFS was not being restored correctly in some + cases after a subshell has been fixed. +06-10-06 A bug in which pipefail was not detecting some failures in + pipelines with 3 or more states has been fixed. +06-10-03 A bug in the processing of >(...) with builtins which could + cause the builtin to hang has been fixed. +06-10-03 A bug in the for loop optimizer which causes >(...) process + substitution to be ignored has been fixed. +06-09-17 The -a option was added to typeset for indexed arrays. This + is only needed when using the ([subscript]=value ...) form. +06-09-06 The showme option was added. Each simple command not beginning + with a redirection and not occurring with in the while, until, if, + select condition can be preceded by a semi-colon which will + be ignored when showme is off. When showme is on, any command + preceded by a colon will be traced but not executed. +06-08-16 As a new feature, a leading ~(N) on a pattern has no effect + except when used for file expansion. In this case if not + matches are found, the pattern is replaced by nothing rather + than itself. +06-08-11 A bug in the expansion of ${.sh.match[i]:${#.shmatch[i]}} has + been fixed. +06-08-10 The read builtin options -n and -N have been modified to treat + the size as characters rather than bytes unless storing into a + binary (typeset -B) variable. +06-07-27 When the here document operator << is followed directly by a # + rather than a -, the first line of the here-document determines + how much whitespace is removed for each line. +06-07-26 A bug in the C-shell history (enabled with set -H) in which the + history event !$ was not processed has been fixed. +06-07-21 A bug on some systems in which assigning PATH on a command line + would not take effect has been fixed. +06-07-20 Add ksh93 and rksh93 as allowable names for ksh binaries. +06-07-20 Removed the SHOPT_OO compilation option which was only partially + implemented. +06-07-20 The ability to use egrep, grep, and fgrep expressions within + shell patterns has been documented. +06-07-17 A bug with arithmetic command expressions for locales in which + the comma is a thousands separator has been fixed. +06-07-13 The default HISTSIZE was increased from 128 to 512. +06-07-13 A multibyte problem with locales that use shift codes has been fixed. +06-06-23 A number of bug fixes for command, file, and variable completion + have been mode. +06-06-20 Floating point division by zero now yields the constant Inf or -Inf + and floating functions with invalid arguments yield NaN. +06-06-20 The floating point constants Inf and NaN can be used in arithmetic + expressions. +06-06-20 The functions isinf(), isnan(), tanhl() have been added for + arithmetic expressions. +06-06-13 Internal change to use ordering for variables instead of hashing + to speed up prefix matching. +06-06-13 A window between fork/exec in which a signal could get lost + and cause a program to hang has been eliminated +06-06-13 A bug in edit completion with quoted strings has been fixed. +06-06-07 The restricted options can now be enabled by set as well as on + the command line. Once set, it can not be disabled. +06-06-04 Modified built-in binding so that for systems for which /bin + and /usr/bin are the same, a builtin bound to /bin will get + selected when either /bin or /usr/bin is scanned. +06-06-04 Added literal-next character processing for emacs/gmacs mode. + This change is not compatible with earlier versions of ksh93 + and ksh88 when the stty lnext is control-v. The sequence + escape-control-v will display the shell version. +06-05-31 Modified emacs and vi mode so that entering a TAB after a partial + TAB completion, generates a listing of possible completions. + After the second TAB, a number followed by a TAB will perform + the completion with the corresponding item. +06-05-19 Modified arithmetic so that conversions to strings default to + the maximum number of precision digits. +06-05-16 Bug fixes for multibyte locales. +06-05-10 The =~ operator was added to [[...]] and [[ string ~= ERE ]] + is equivalent to [[ string == ~(E)ERE ]]. +06-04-25 A bug in the vi edit mode which could cause the shell to core dump + when switching from emacs mode. +06-04-17 A bug in which using LANG or LC_ in assignment lists with builtins + did not restore the localed correctly has been fixed. +06-04-04 A bug in which discipline functions could not be added to variables + whose names started with .sh has been fixed. +06-03-28 The -s option to typeset was added to modify -i to indicate short + integers. +06-03-28 A bug in which variables assignment lists before functions + defined with function name were not passed on the functions + invoked by this function has been fixed. +06-03-28 A bug in which name references defined within a function defined + with function name could not be used with compound variables has + been fixed. +06-03-27 A bug in which read <&p (print >&p) would cause the coprocess input + (output) pipe to close before reading from (after writing to) + it has been fixed. +06-02-28 A bug in which stopping a job created with the hist builtin command + would create a job that could not be restarted has been fixed. + +06-01-24 --- Release ksh93r --- +06-01-24 A bug in which running commands with standard output closed would + not work as expected has been fixed. +06-01-23 A bug in which print -u<n> could fail when file descriptor <n> was + open for writing has been fixed. +06-01-19 The ?: arithmetic operator fixed to work when the operation after + the colon was an assignment. +05-12-24 A bug which could lead to a core dump when elements of a compound + variable were array elements, i.e. foo=(bar=(1 2)), has been fixed. +05-12-13 An arithmetic bug in which x+=y+=z was not working has been fixed. +05-12-13 An arithmetic bug in which x||y was returning x when x was non-zero + rather than 1 has been fixed. +05-12-07 The aliases for integer and float have been changed to use attributes + -li and -lE to handle long long and long double types. +05-12-07 The histexpand (-H) option has been added which allows C-shell + style history expansions using the history character !. +05-12-07 The multiline option was added which changes that way the edit + modes handle lines longer than the window width. Instead of + horizontal scrolling, multiple lines on the screen are used. +05-12-05 The whence builtin now returns an absolute pathname when the + command is found in the current directory. +05-11-29 A bug which caused ksh -c '[[ ! ((' to core dump rather than + report a syntax error has been fixed. +05-11-29 A bug when reading fixed length records into typeset -b variables + which caused a zero byte to terminate the value has been fixed. +05-11-22 The ability to seek to an offset within a file has been added + with the new I/O redirection operators, <# and >#. Currently, + these redirection operators must be followed by ((expr)) + but in a future release, it should be able to used to seek forward + to the specified shell pattern. In addition $(n<#) expands to the + current byte offset for file descriptor n. +05-11-22 The .sh.match array variable is now set after each [[ ... ]] + pattern match. Previously it was only set for substring matches. +05-10-17 A bug in which the library path variable could be prefixed + with a directory when a .path file was not encountered in + the directory of the executable has been fixed. +05-09-15 A for/while loop optimizer bug in which $OPTIND was not + correctly expanded has been fixed. +05-09-05 A bug in which a history command that invoked a history + command could go into an infinite loop has been fixed. +05-08-31 In the case that IFS contains to adjacent new-lines so that + new-line is not treated as a space delimiter, only a single + new-line is deleted at the end of a command substitution. +05-08-19 When a tilde substitution expands to the / directory and is + followed by a /, it is replaced by the empty string. +05-08-16 A bug in which n<&m did not synchronize m has been fixed. +05-08-16 A bug in which process substitution ( <() and >() ) was not + working within for and while loops has been fixed. +05-07-24 A bug in which the pattern ~(E)(foo|bar) was treated as a syntax + error has been fixed. +05-07-24 A bug in completion with <n>=, where n was the one of the + previous selection choices has been fixed. +05-07-21 A bug with multibyte input when no edit mode was specified which + caused the input line to shift left/right has been fixed. +05-06-24 A race condition which could cause the exit status to get lost + on some fast systems has been fixed. +05-06-21 A bug in which nested patterns of the form {m,n}(pat) would cause + syntax errors has been fixed. +05-06-21 A bug in the macro expander has been fixed which could cause a + syntax error for an expansion of the form ${x-$(...)} when + x is set and the command substitution contained certain strings. +05-06-08 On systems for which echo does not do System V style \ expansions, + the -e option was added to enable these expansion. +05-06-08 A bug in which ${var op pattern} to not work when inside an + arithmetic expression has been fixed. +05-05-23 An extension to shell patterns that allows matching of nested + groups while skipping over quoted strings has been added. +05-05-18 A bug in which the line number for errors was not correct for + functions loaded from FPATH has been fixed. +05-04-18 A bug in which the exit status $? is not set when a trap triggered + by the [[...]] command is executed has been fixed. +05-04-08 Redirection operators can be directly preceded with {varname} + with no intervening space, where varname is a variable name which + allows the shell to select a file descriptor > 10 and store it + into varname. +05-04-08 SHOPT_CMDLIB_BLTIN=1 now includes <cmdlist.h> generated table. +05-04-07 [[ -o ?option ]] is true if "option" is a supported option. +05-04-05 A bug in handling file completion with spaces in the names + has been fixed. +05-03-25 The SIGWINCH signal is caught by default to keeps the LINES and + COLUMNS variables in sync with the actual window size. +05-03-25 Building ksh with SHOPT_REMOTE=1 causes ksh to set --rc if stdin is + a socket (presumably part of a remote shell invocation.) +05-03-25 Building ksh with SHOPT_SYSRC=1 causes interactive ksh to source + /etc/ksh.kshrc (if it exists) before sourcing the $ENV file. +05-03-25 {first..last[..incr][%fmt]} sequences added to brace expansions + when braceexpand is enabled. +05-03-03 A bug where a SIGCHLD interrupt could cause a fifo open to fail has + been fixed. +05-02-25 A bug in which a builtin command run in the background could + keep a file descriptor open which could cause a foreground + process to hang has been fixed. +05-02-24 A bug where builtin library commands (e.g., date and TZ) failed to + detect environment variable changes has been fixed. +05-02-22 The read builtin and word splitting are now consistent with respect + to IFS -- both treat IFS as field delimiters. +05-02-22 The read builtin no longer strips off trailing delimiters that + are not space characters when there are fewer variables than fields. +05-02-17 A builtin bug on systems where dlsym(libcmd) returns link-time + bindings has been fixed. +05-02-12 A bug in which the lib_init() function for .paths BUILTIN_LIB + libraries was not called has been fixed. +05-02-06 A bug on some systems in which moving the write end of a co-process + to a numbered file descriptor could cause it to close has been fixed. +05-02-06 A bug in the vi-edit mode in which the character under the cursor + was not deleted in some cases with the d% directive has been fixed. +05-02-06 A bug where external builtin stdout/stderr redirection corrupted + stdout has been fixed. +05-02-04 A bug where times formatting assumed CLK_TCK==60 has been fixed. + +05-01-11 --- Release ksh93q --- +05-01-11 A bug in the integral divide by zero check has been fixed. +05-01-11 The -l option has been added to read /etc/profile and + $HOME/.profile, if they exist, before the first command. +05-01-11 An argument parsing bug that caused `kill -s x -- n' to fail has + been fixed. +05-01-11 The .paths file, introduced in ksh93m, which can appear in + any directory in PATH, now allows a line of the form 'BUILTIN_LIB=.' + When a command is searched for this directory, and the full path + matches the path of the built-in version of the command (listed + by the 'builtin' command) then the built-in version of the command + is used. When ksh is built with SHOPT_CMDLIB_DIR=1 then all libcmd + functions become builtins with the '/opt/ast/bin/' directory prefix. +05-01-10 A bug in which a nameref to a compound name caused a core dump has + been fixed. +05-01-09 A bug in which some SIGCHLD interrupts (from child processes exiting) + caused a fatal print/echo error diagnostic has been fixed. +04-12-24 A bug in which some SIGCHLD interrupts (from child processes exiting) + corrupted the internal process/job list, sometimes causing the shell + to hang, has been fixed. +04-12-01 A bug in which typeset -Fn truncated less than n digits for large + numbers has been fixed. +04-11-25 A bug in which standard error could be closed after a redirection + to /dev/stderr has been fixed. +04-11-17 A bug in which an expansion of the form ${array[@]:3} could expand + to ${array[0]} when ${array[3]} was not set has been fixed. +04-10-22 The -E or -orc command line option reads ${ENV-$HOME/.kshrc} file. +04-10-22 `-o foo' equivalent to `+o nofoo', `-o nobar' equivalent to `+o bar'. + `--foo' equivalent to `-o foo', `--nofoo' equivalent to `+o foo' +04-10-05 The .paths file, introduced in ksh93m, which can appear in + any directory in PATH, now allows a line of the form + 'BUILTIN_LIB=libname'. When a command is searched for this directory, + the shared library named by libname will first be searched for a + built-in version of the command. +04-09-03 <<< here documents now handle quotes in the word token correctly. +04-08-08 The maximum size for read -n and and read -N was increased from + 4095 to 32M. +04-08-04 printf %q was modified so that if an no operand was supplied, no + no output would be generated rather than a quoted empty string. +04-08-01 The -n and -N options of the read builtin has been modified + when reading variables with the binary attribute so that the + data is stored directly rather than through assignment. +04-08-01 The shcomp command has been modified to process alias commands + under some conditions. +04-07-31 The .sh.match variable added in ksh93l, now works like other + indexed arrays. +04-07-08 A loop optimizer bug which occurs when typeset is used in + a for or while loop inside a function has been fixed. +04-06-24 The number of subexpressions in a pattern was increased to 64 + from the current number of 20. +04-06-17 The -t option to read was modified to allow seconds to be + specified as any arithmetic expression rather than just + an integral number of seconds, for example even -t 'sin(.5)' + is now valid. +04-06-16 Two small memory leak problems were fixed. +04-06-15 A bug in ${var/pattern/"string"} which occurred when string + contained pattern matching characters has been fixed. +04-05-08 printf $'%d\n' produced an erroneous error message and has + been fixed. +04-05-24 A bug in which an associative array without any elements could + cause a core dump when a script with an associative array with + the same name was declared in a script invoked by name has + been fixed. +04-05-11 A bug in which an exec statement could close the script that + is being processed in a script that is run by name causing + a failure has been fixed. +04-04-28 If the first character of assignment to an integer variable was 0, + the variable had been treated as unsigned. This behavior was + undocumented and has been removed. +04-04-05 A bug in which the positioning of standard input could be incorrect + after reading from standard input from a subshell has been fixed. +04-03-30 A bug in the for loop optimizer which in rare cases could cause + memory corruption has been fixed. +04-03-29 The preset alias source='command .' has been added. +04-03-29 A bug introduced in ksh93p on some systems in which invoked by + name with #! on the first line would not get the signals handling + initialized correctly has been fixed. +04-03-29 A bug introduced in ksh93p in which a HUP signal received by + a shell that is a session group leader was not passed down to + its children has been fixed. + +04-02-28 --- Release ksh93p --- +04-02-28 The ability to apply an append discipline to any variable has + been added. +04-02-14 A bug in which the exportall option (set -a) would cause incorrect + results for arrays has been fixed. +04-02-02 A bug in which an exported array would pass more than + the first element to a script invoked by name has been fixed. +04-02-02 A bug on some systems in which name=value pairs preceding a script + invoked by name was not getting passed to the script has been fixed. +04-01-20 A bug in which an unset discipline function could cause a core + dump on some systems has been fixed. +04-01-12 A bug in which a continue or break called outside a loop from + inside a function defined with name() syntax could affect + the invoking function has been fixed. +04-01-08 If a command name begins with ~, only filename completion will be + attempted rather than pathname completion using the builtin editors. +04-01-08 A bug in the vi edit mode in which the wrong repeat count on + multiple word replacements with the . directive has been fixed. +04-01-06 Backspace characters are now handled correctly in prompt strings. +04-01-06 The getopts builtin has been modified to accept numerical + arguments of size long long on systems that support this. +04-01-06 A bug in which unsetting all elements of an associative array + would cause it to be treated as an indexed array has been fixed. +03-12-15 A bug in which a quoted string ending with an unescaped $ would + delete the ending $ in certain cases has been fixed. +03-12-05 A bug in which the shell could hang when set -x tracing a command + when an invalid multibyte character is encountered has been fixed. +03-12-05 On some systems, if the KEYBD trap is set, then commands that use + the meta key were not processed until return was hit. This + has been fixed. +03-12-05 A problem which occurred when the login shell was not a group + leader that could cause it to fail has been fixed. +03-12-05 A problem in which a shell could core dump after receiving a signal + that should cause it to terminate while it was in the process + of acquiring more space has been fixed. +03-12-05 If ENV is not specified, the shell will default to $HOME/.kshrc + for interactive shells. +03-11-21 A bug introduced in ksh93o in which the DEBUG trap could get + disabled after it triggered has been fixed. +03-11-04 A bug in which using arithmetic prefix operators ++ or -- on a + non-lvalue could cause a core dump has been fixed. +03-11-04 A bug in which leading zeros were stripped from variable + expansions within arithmetic computation to avoid being treated + as octal constants when they should not have, has been fixed. +03-10-08 A bug introduced in ksh93o in which a large here document inside + a function definition could get corrupted has been fixed. +03-09-22 A bug in which the .get discipline function was not being + called when a string variable was implicitly referenced from + within a numerical expression has been fixed. +03-09-22 A bug in which a script without a leading #! could get executed + by /bin/sh rather than the current shell on some systems has + been fixed. +03-09-12 To improve conformance with ksh88, leading zeros will be ignored + when getting the numerical value of a string variable so that + they will not be treated as octal constants. +03-09-03 The builtin kill command now processes obsolete invocations + such as kill -1 -pid. +03-09-02 The restriction on modifying FPATH in a restricted shell (sh -r) + has been documented. +03-09-02 The restricted shell (sh -r) has been modified to disallow + executing command -p. +03-08-07 A bug in which the KEYBD trap was not being invoked when + characters with the 8th bit set has been fixed. +03-08-02 A parser bug introduced in ksh93o which caused the character + after () in a Posix function definition to be skipped + when reading from standard input has been fixed. +03-08-01 A bug in which "${foo#pattern}(x)" treated (x) as if it were + part of the pattern has been fixed. +03-08-01 The command -x option has been modified so that any trailing + arguments that do expand to a single word will be included + on each invocation, so that commands like command -x mv * dir + work as expected. + +03-07-20 --- Release ksh93o+ --- +03-07-20 A bug in which could cause memory corruption when a posix + function invoked another one has been fixed. +03-07-15 A bug in which a file descriptor>2 could be closed before + executing a script has been fixed. +03-07-15 A parsing error for <() and >() process substitutions inside + command substitution has been fixed. +03-07-15 A parsing error for patterns of the form {...}(...) when + used inside ${...} has been fixed. +03-07-15 An error in which expanding an indexed array inside a compound + variable could cause a core dump has been fixed. +03-07-15 A bug in which under on rare occassions a job completion interrupt + could cause to core dump has been fixed. +03-06-26 A bug in which process substitution embedded within command + substitution would generate a syntax error has been fixed. +03-96-23 A bug in which ${@:offset:len} could core dump when there + were no arguments has been fixed. +03-96-23 A bug in which ${X[@]:offset:len} could core dump when X + was unset has been fixed. +03-06-22 The -x option was added to the command builtin. If this + option is on, and the number of arguments would exceed ARG_MAX, + the command will be invoked multiple times with a subset of + the arguments. For example, with alias grep='command -x grep, + any number of arguments can be specified. +03-06-14 A bug in which could cause a core dump on some systems with + vi and emacs editors with the MULTIBYTE option has been fixed. +03-06-06 A bug in which the shell could core dump when a script was + run from its directory, and the script name a symlink to a file + beginning with .., has been fixed. +03-06-05 A bug in which the shell could core dump when a child process + that it is unaware of terminates while it is calling malloc() + has been fixed. +03-06-02 An option named globstar (set -G) has been added. When enabled, + during pathname expansion, any component that consists only of ** is + matches all files and any number of directory levels. +03-05-30 A bug in which the PATH search could give incorrect results when + run from directory foo and PATH contained .:foo:xxx has been fixed. +03-05-29 Some changes were made to the code that displays the prompt in edit + mode to better handle escape sequences in the prompt. +03-05-27 I added = to the list of characters that mark the beginning of + a word for edit completion so that filenames in assignments + can be completed. +03-05-20 A bug in which read -N could hang on some systems when reading + from a terminal or a pipe has been fixed. +03-05-19 A bug in which the output of uname from a command substitution + would go to the standard output of the invoking command when + uname was invoked with a non-standard option has been fixed. +03-05-19 A job control bug which would cause the shell to exit because + it hadn't take back the terminal has been fixed. The bug + could occur when running a function that contained a pipeline + whose last element was a function. +03-05-19 A job control timing bug introduced in ksh93o on some systems + which could cause a pipeline to hang if the first component + completed quickly has been fixed. +03-05-13 The read builtin has been modified so that the builtin editors + will not overwrite output from a previous incomplete line. +03-05-13 A bug in which the name of an identifier could have the string + .sh. prefixed to it after expanding a variable whose name begins + with .sh. has been fixed. +03-05-13 A bug in the expansion of $var for compound variables in which + some elements would not be output when the name was a prefix + of another name in the compound variable has been fixed. +03-05-08 The last item in the ksh93o release on 03-01-02 has been + altered slightly to preserve the leading 0's when the + preceding character is a digit. Thus, with typeset -LZ3 x=10, + $(( 1$x)) will be 1010 whereas $(( $x) will be 10. +03-04-25 A bug in which if x is a name reference, then nameref y=x.foo + did not follow x has been fixed. + +03-03-18 --- Release ksh93o --- +03-03-18 A -N unary operator was added to test and [[...]] which returns + true if the file exists and the file has been modified since it + was last read. +03-03-18 The TIMEFORMAT variable was added to control the format for + the time compound command. The formatting description is + described in the man page. +03-03-06 A -N n option was added to read which causes exactly n bytes + to be read unlike -n n which causes at most n bytes to be read. +03-03-03 Three new shell variables were added. The variable .sh.file + stores the full pathname of the file that the current command + was found in. The variable .sh.fun names the current function + that is running. The variable .sh.subshell contains the depth + of the current subshell or command substitution. +03-03-03 When the DEBUG trap is executed, the current command line after + expansions is placed in the variable .sh.command. The trap + is also now triggered before each iteration of a for, select, + and case command and before each assignment and redirection. +03-02-28 Function definitions are no longer stored in the history file so + that set -o nolog no longer has any meaning. +03-02-28 All function definitions can be displayed with typeset -f not + just those stored in the history file. In addition, typeset +f + displays the function name followed by a comment containing the + line number and the path name for the file that defined this function. +03-02-28 A bug in which the value of $LINENO was not correct when executing + command contained inside mult-line command substitutions has been + fixed. +03-02-19 Since some existing ksh88 scripts use the undocumented and + unintended ability to insert a : in front of the % and # parameter + expansion operators, ksh93 was modified to accept :% as equivalent + to % and :# as equivalent to # with ${name op word}. +03-02-14 A bug which could cause a core dump when reading from standard + error when standard error was a pty has been fixed. +03-02-14 The shell arithmetic was modified to use long double on systems + that provide this data type. +03-02-09 A bug in which a function located in the first directory in FPATH + would not be found when the last component of PATH was . and the + current directory was one of the directories in PATH has been fixed. +03-02-07 The trap and kill builtin commands now accept a leading SIG prefix + on the signal names as documented. +03-02-05 A bug in the expansion of ${var/$pattern}, when pattern contained + \[ has been fixed. +03-02-05 A bug in which .sh.match[n], n>0, was not being set for substring + matches with % and %% has been fixed. +03-01-15 A bug in which getopts did not work for numerical arguments specified + as n#var in the getopts string has been fixed. +03-01-09 A bug in which using ${.sh.match} multiple times could lead to + a memory exception has been fixed. +03-01-06 A bug in the expansion of ${var/pattern/$string} in the case that + $string contains \digit has been fixed. +03-01-02 A -P option was added for systems such as Solaris 8 that support + profile shell. +03-01-02 For backward compatibility with ksh88, arithmetic expansion + with ((...)) and let has been modified so that if x is a zero-filled + variable, $x will not be treated as an octal constant. + +02-12-05 --- Release ksh93n+ --- +02-11-30 A bug that can show up in evaluating arithmetic statements that + are in an autoloaded function when the function is autoload from + another function has been fixed. +02-11-30 An optimization bug in which an expansion of the form ${!name.@}, + which occurred inside a for or a while loop, when name is a name + reference, has been fixed. +02-11-18 A bug in which modifying array variables in a subshell could leave + side effects in the parent shell environment has been fixed. +02-11-18 A memory leak when unsetting an associative array has been fixed. +02-11-14 The code to display compound objects was rewritten to make + it easier for runtime extensions to reuse this code. +02-11-14 A change was made to allow runtime builtins to be notified when + a signal is received so that cleanup can be performed. +02-10-31 User applications can now trap the ALRM signal. Previously, + the ALRM signal was used internally and could not be used + by applications. +02-10-31 A bug in which signals received while reading from a coprocess + for which traps were set was not handled correctly has been fixed. +02-10-31 A bug in which a file opened with exec inside a subshell could + be closed before the subshell completed has been fixed. +02-10-21 A bug in which setting PATH or FPATH inside a function might not + take effect has been fixed. +02-10-21 A bug which could cause a core dump when a local SECONDS variable + is defined in a function has been fixed. +02-10-15 A bug in which the associate array name operator ${!array[@]} + could return the same name multiple times has been fixed. +02-10-15 A bug in which the zero'th element of an associative array was + not getting set when an assignment was made without a subscript + specified has been fixed. + +02-09-30 --- Release ksh93n --- +02-09-30 The maximum indexed array size was increased to 16Megs. +02-09-30 A bug which could cause a core dump when changing attributes + of associative array has been fixed. +02-09-30 A bug in which exporting an array variable would not export the + 0-th element has been fixed. +02-09-30 A bug in which an array assignment of the form a=($a ...) would unset + 'a' before the right hand side was evaluated has been fixed. +02-09-27 A bug in which the error message for ${var?message} when var was + null or unset did not contain the variable name var has been fixed. +02-09-27 A bug in which closing file descriptors 0 through 2 could + cause a subsequent here document to fail has been fixed. +02-09-14 A bug in whence which occurs when the specified name contained + a / has been fixed. +02-09-14 A bug in the parser for strings of the form name$((expr))=value + has been fixed. +02-09-14 A for loop optimization bug in which the number of elements in + an array was treated as an invariant has been fixed. +02-09-09 A bug in which redirection or closing of a file descriptor between + 3 and 9 could cause a subsequent here document to fail has been + fixed. +02-09-09 A bug in which a background job was not removed from the job list + when a subshell completed has been fixed, for example (prog&). +02-09-03 A bug in which an assignment of the form name=(integer x=3) + could be interpretted as an array assignment rather than a + compound variable assignment has been fixed. +02-08-19 A command completion bug which occurred on file systems that + are case insensitive has been fixed. +02-08-19 A bug which could lead to an exception on some systems (for + example FREEBSD) which occurred when setting PATH has been fixed. +02-08-11 A bug in arithmetic rounding in which a value input as a decimal + string would output as a rounded version of the string has + been fixed. +02-08-11 A bug in which the last character could be deleted from shell + traces and from whence when called from a multibyte locale + has been fixed. +02-08-01 A bug which could cause a core dump to occur when a shell script + is executed while a coprocess is running that has closed the + output pipe has been fixed. +02-08-01 A bug in which command completion in multibyte mode could + corrupt memory for long command lines has been fixed. + +02-06-17 --- Release ksh93n- --- +02-06-17 A bug in which user defined macros could cause a core dump in + with MULTIBYE mode has been fixed. +02-06-17 A bug in which printf format specifiers of the form %2$s were causing + a core dump has been fixed. +02-06-17 A bug in which setting stty to noecho mode did not prevent the + echoing of characters by ksh when emacs or viraw mode + was enabled has been fixed. +02-06-17 A bug in which background job completion could cause the sleep + builtin to terminate prematurely has been fixed. +02-06-17 A bug in which the shell could core dump if getopts was called + when the OPTIND variable contained a negative value has been fixed. +02-06-10 The edit mode prompt has been modified to handle escape sequences. +02-06-10 A bug which occurred for interactive shells in which the builtin + cat command was used in command substitution on a file whose + size was larger than PIPE_BUF has been fixed. +02-06-10 A bug in which the trap on ERR was not being processed when + set inside a function has been fixed. +02-06-07 A bug in which function definitions could cause the history count + to be decremented by one (and even become negative) has been fixed. +02-06-05 A bug in read in which share mode could be enabled has been fixed. +02-05-28 A bug which could occur when the last command of a script was + a case statement and the action selected ended in ;& instead of ;; + has been fixed. +02-05-23 A bug with unary + introduced in ksh93k has been fixed. +02-05-07 A bug in substitutions of the form ${var/pattern/string} in which + a backslash was inserted in the replacement string when it contained + a special pattern character has been fixed. +02-05-01 A bug in the emacs edit mode which occurred in versions compiled + for multibyte character sets which occurred when a repeated search + was requested after a long line had been returned for the previous + search has been fixed. +02-04-02 vi and emacs edit modes were modified so that tab completion is + disabled when invoked from the read built-in. + +02-03-26 --- Release ksh93m+ --- +02-03-26 A bug in which \ was not handled correctly when used in file + expansion has been fixed. +02-02-18 A bug in which lines beginning with a # were deleted from here + documents when the here-document delimiter was followed by + a comment has been fixed. +02-12-06 An optimization bug in which ${!x[@]) was treated as invariant in + a for loop has been fixed. +02-02-06 A bug in which the ERR trap is not cleared for a script invoked + by name from within a function has been fixed. +02-01-08 A bug in which a shell script executed from within a subshell + could cause this script to have an invalid pointer leading + to a memory fault has been fixed. +02-01-07 Added here documents of the form <<< word (as per zsh) which + is equivalent to << delim\nword\ndelim. +02-01-07 A bug in which the first word of a compound assignment, + x=(word ...), was treated as a reserved word has been fixed. +02-01-07 A bug in the handling of \ when noglob was enabled and a + substitution of the form ${word op pattern} occurred in the + same word has been fixed. +02-01-07 A compilation option, CMDLIB_BLTIN in the file OPTION, has + been added. When this options is set, all commands implemented + in libcmd become shell builtin commands by default. +02-01-07 A bug in which builtin foo, where foo is already a builtin + would result in the builtin foo getting removed has been fixed. +02-01-07 A bug which the shell executed a command found in the current + directory when PATH have no valid directories has been fixed. +01-11-28 The value of $? was not being set when called with exit. +01-11-28 If the last command was of the form (...) and a trap on EXIT or + ERR was set, and the command inside () modified the trap, then + the original trap wasn't executed. +01-11-26 The value for 0 is now preceded by the base number when + the base was not 10. +01-11-26 The default has compilation mode has been changes so that + viraw mode will always be on. + +01-10-31 --- Release ksh93m --- +01-10-31 A for loop optimizer bug for subshells contained withing for + loops has been fixed. +01-10-16 typeset without arguments no longer outputs variable names + that do not have any attributes that are set. +01-10-16 A bug introduced in ksh93l in which assignments specified with + the exec built-in were not being expanded properly has been + fixed. +01-10-11 An optimization bug in which ${!x) was treated as invariant in + a for loop has been fixed. +01-10-11 Unsigned integer variables in bases other than 10 are printed now + expand in that base with the base prefix. +01-10-10 A number of typos in the self generating man pages for shell + built-ins have been fixed. +01-10-04 The self generated man pages for hist and fc were not working + correctly and have been fixed. +01-10-03 Yet another optimizer bug in which shell patterns were + treated as invariants has been fixed. +01-09-27 Two bugs relating to multibyte history searches and to find + have been fixed. +01-09-27 A bug introduced in ksh93k in which the PATH searching was + not restored after running a command with an assignment list + has been fixed. +01-09-26 A bug in which a zero filled field was treated as octal when + converted to integer has been fixed. +01-09-26 Yet another bug in the optimization of for loops related to + recursive functions with break or continue statements has been fixed. +01-09-25 The exponentiation operator ** was added to the shell arithmetic + evaluation. It has higher precedence than * and is left + associative. +01-09-25 The code was modified to use the ast multibyte macros + and functions for handing multibyte locales. +01-09-25 The expansion ${parameter:offset:length} now handles negative + offsets which cause offsets to be measured from the end. +01-09-25 Some spelling errors in the documentation were corrected. +01-09-24 The /dev/tcp/host/port and /dev/udp/host/port now allow + the ports to be specified by service name. +01-09-24 The change staring with ksh93g in which the the appropriate + library path variable is prepended with a corresponding library + directory has been modified. With the new method, only the + library path defined in the file named .paths in the directory + where the executable is found will be modified. See the + man page for more details. +01-09-23 The .fpath file (see ksh93h) is no longer looked for in each + directory on the path to locate function directories. The + file named .paths is used instead. +01-09-23 A bug in which IFS was not being restored after being changed in + a subshell has been fixed. +01-09-16 With the vi and emacs edit modes, after a list of command + or functions is generated with = or M-= respectively, + any element from the list can be pasted on the command line + by preceding the = or M-= with a numeric parameter specifying + the position on the list. +01-09-16 A bug in ksh93l caused command completion not to find aliases + and functions. Command listing from the edit mode was presented + in reverse order. This has been fixed. +01-09-13 Another bug in the optimization of for loops related to subshells + when traps were set has been fixed. +01-09-07 A change in ksh93l caused brace expansion to stop working + and this has been fixed. +01-09-04 A bug introduced in ksh93k in which an arithmetic statement + within a function that used name references did not follow the + reference has been fixed. +01-09-04 A bug introduced in ksh93l in which export -p did not prefix + each export with the word export has been fixed. +01-08-29 A bug in multibyte input which occurred when a partial multibyte + character was received has been fixed. +01-08-29 A bug introduced in ksh93l which could cause a core dump + when an assignment list containing PATH is specified inside + command substitution has been fixed. +01-08-09 Another bug in the optimization of for loops in ksh93l caused + errors in recursive functions using local variables that + contained for loops has been fixed. +01-07-27 A bug in which IFS would be unset after a command substitution + inside a here document has been fixed. +01-07-26 To conform to the POSIX standard, if you invoked ksh name, + and name does not contain a /, it will first try to run + one in the current directory whether it is executable or not + before doing a path search for an executable script. Earlier + versions first checked for an executable script using the + PATH variable. +01-07-23 A bug in which unset -f invoked in a subshell could unset a + function defined in the parent has been fixed. +01-07-16 A bug in the optimization of for loops in ksh93l caused + name references to be treated as invariants has been fixed. +01-07-09 A bug in which a discipline function applied to a local variable + could cause a shell exception has been fixed. Discipline + functions can only be specified for global variables. + +01-06-18 --- Release ksh93l --- +01-06-18 A bug in assigning integers larger than can be represented as + long integers to floating point variables has been fixed. +01-06-18 A bug in the handling of unsigned integers (typeset -ui) has + been fixed. +01-06-04 The evaluation of the PS1 prompt no longer effects the value + of the $? variable. +01-06-01 A small memory leak from subshells has been fixed. +01-05-22 A bug in which attributes for variables that did not have + values would be lost after a subshell has been fixed. +01-05-22 The %R format has been added to convert a shell pattern into + an extended regular expression. +01-05-22 The escape sequences \e, \cX, \C[.collating-element.], and + \x{hex} have been added to ASCII-C strings and to printf format + strings. +01-05-20 Patterns of the form {n}(pattern) and {m,n}(pattern) are now + recognized. The first form matches exactly n of pattern whereas, + the second form matches from m to n instances of pattern. +01-05-20 The shell allows *-(pattern), +-(pattern), ?-(pattern), + {m,n}-(pattern}, and @-(pattern) to cause the minimal + match of pattern to be selected whenever possible rather + than the maximal (greedy) match. +01-05-20 The character class [:word:] has been added to patterns. + The word class is the union of [:alnum:] and the character _. +01-05-20 Inside (...) pattern groups, the \ character is now treated + specially even when in an enclosing character class. The + sequences, \w, \d, \s are equivalent to the character classes + word, digit, and space respectively. The sequences \W, \D, + and \S are their complement sets. +01-05-20 The shell now recognizes pattern groups of the form + ~(options:pattern) where options or :pattern can be omitted. + Options use the letters + and - to enable and disable options + respectively. The option letters g (greedy), i (ignore case) + are used to cause maximal matching and to cause case + insensitive matching respectively. If :pattern is also + specified, these options are only in effect while this + pattern is being processed. Otherwise, these options remain + in effect until the end of the pattern group that they are contained + in or until another ~(...) is encountered. These pattern groups + are not counted with respect to group numbering. +01-05-14 When edit completion, expansion, or listing occurs in the + middle of a quoted string, the leading quote is ignored when + performing the completion, expansion, or listing. +01-05-14 A small memory leak from subshells has been fixed. +01-05-10 A bug in which open files were not restored after a subshell + that had used exec to replace a file has been fixed. +01-05-10 Redirection to a null file name now generates an error message. +01-05-09 The shell now rejects some invalid parameter substitutions that + were previously processed in undefined ways. +01-05-09 A bug in which the output of select was not flushed before the + read when input did not come from the terminal has been fixed. +01-05-08 A bug in which job ids would not be freed for interactive shells + when subshells ran built-ins in the background has been fixed. +01-05-08 The FPATH variable now requires an explicit . to cause the + current directory to be treated as a function directory. +01-05-08 A bug in read -n when echo mode was disabled has been fixed. +01-05-07 A bug in which function definitions could be listed as part + of the history has been fixed. +01-04-30 This release uses a new and often much faster pattern matcher than + earlier releases. +01-04-30 An optimizer now eliminates invariant parameter expansions from + for while and until loops. +01-04-30 The variable .sh.match is set after each pattern match (# % or /) + in a variable substitution. The variable .sh.match is an + indexed array with element 0 being the complete match. + The array is only valid until the next subsequent pattern + match or until the value of the variable changes which ever + comes first. +01-04-30 A self generating man page has been added to shcomp. Also, + shcomp now stops compiling when it finds an exit or exec + command and copies the remainder so that it can be used + for standard input. +01-04-30 The shcomp command was modified so that it can work in an + EBCIDIC environment and that binary scripts are portable + across environments. +01-04-30 A bug in the handling of a trailing : in PATH has been fixed. +01-04-30 A bug in which the builtin version of a command would get invoked + even though the full pathname for the command was specified + has been fixed. +01-04-30 A bug in which read would loose the last character when + reading the last line of a file that did not contain a new-line + character has been fixed. +01-04-23 A bug on some systems in which in vi mode the end of file + character and end of line character could be swapped has + been fixed. +01-04-23 A bug on some systems in which invoking a shell script that + did not have execute permission could set the exit value to + 127 rather than 126 has been fixed. +01-04-20 A bug in which read -n from a pipe would block if fewer than + n characters was received has been fixed. +01-04-09 A bug in which invalid patterns, for example, ) by itself, + was not treated as a string has been fixed so that if i=')', + then [[ $i == $i ]] is true. +01-04-09 The shell arithmetic now interprets C character constants. +01-04-09 A bug in which a non-zero return from a function defined + with the function reserved word did not trigger the ERR + trap or exit with set -e has been fixed. +01-04-02 A bug on some systems, in which characters above 127 were + not displayed correctly in vi or emacs edit mode has been fixed. +01-04-02 A bug on some systems, introduced in the 'k' point release, in + which the erase character in viraw mode was moving the cursor + to the left without erasing the character has been fixed. +01-04-02 On some systems the wcwith() function was returning a wrong + value for characters and caused characters to be displayed + incorrectly from the shell edit modes. A work around for + this problem has been added. +01-03-26 A bug in which valid scripts could produce syntax errors + when run with locales that considered characters such as "'" + to be space characters has been fixed. +01-03-20 A bug in which an syntax error in an arithmetic expression + entered interactively could cause the shell to go into + an infinite loop outputting the error message has been fixed. +01-03-10 ksh93 accepts -l as a synonym for -L in test on systems for + which /bin/test -l tests for symbolic links. +01-03-10 A bug in parsing scripts in which { and } are used in place of + in and esac in case statements embedded in compound commands + has been fixed. Use of { and } for in and esac is obsolete. +01-03-06 A bug in which an argument of the form foo=bar was not + being passed correctly to a traced function whose name + was foo has been fixed. +01-03-02 Using $(trap -p name) did not print the name of the current + trap setting for trap name. +01-02-26 Exported floating point variables gave incorrect results + when passing them to ksh88. This has been fixed. +01-02-25 A race condition in which a coprocess which completed too quickly + would not allow subsequent coprocesses to start has been fixed. +01-02-25 The 'g' format specifier is now handled by printf. It had + inadvertently been omitted. +01-02-20 The + was not being displayed during an execution trace + with the += assignment operator. +01-02-19 The error message which occurs when the interpreter name + defined on the #! line does not exist is more informative. +01-02-19 A bug in which $0 would not be set correctly when a + script with #! was invoked by full pathname from the + directory of the script has been fixed. +01-02-19 A shell script did not always pick up tty mode changes + made by external commands such as stty which could + effect the behavior of read. +01-02-19 The -u, -g, and -k unary tests did not give the correct + results when used with negation and this has been fixed. + +01-02-05 --- Release ksh93k+ --- +01-02-05 The sequence \<newline> inside $'...' was not incrementing + the line count and this has been fixed. +01-02-05 Modified expansion of "${@-}" so that if no arguments are set + it results in null string rather than nothing. +01-02-02 memory leak problem with local variables in functions fixed. +01-01-25 allow arithmetic expressions with float%int and treat them + as ((int)float)%int rather than as an error. +01-01-19 read -n1 was not working and has been fixed. +01-01-17 ksh now handles the case in which a here document in command + substitution $() is terminated by the trailing ). Previously, + a new-line was needed at the end of the delimiter word. +01-01-02 A bug in which a KEYBD trap would cause a multi-line token + to be processed incorrectly has been fixed. +00-12-10 Arithmetic integer constants can now have L and U suffices. +00-12-10 A bug in the processing of arithmetic expressions with compound + variables when the -n option is on has been fixed. +00-12-08 A bug in M-f and M-b from emacs mode has been fixed. This + bug only occurs when ksh93 is compiled without MULTIBYTE enabled. +00-11-29 A bug in which jobs -p would yield 0 for background + jobs run in a script has been fixed. +00-11-21 A bug in integer arrays in which the number of elements is + incorrect when the ++ operator is applied to a non-existing + element has been fixed. For example, integer x; ((x[3]++)). +00-11-20 A timing bug in which the shell could reset the terminal + group to the wrong value in the case that the a new process + changes the terminal group during startup has been fixed. + +00-10-27 --- Release ksh93k --- +00-10-27 Using tab for completion now works only when applied + after a non-blank character at the end of the current line. + In other case a tab is inserted. +00-10-27 A bug in the emacs edit mode for ^X^E has been fixed. + The ^X^E sequence is supposed to invoke the full editor + on the current command. +00-10-18 A bug in which expansions of the form ${var//pattern/string} + did not work correctly when pattern was '/' or "/" has + been fixed. +00-10-18 The output format for indexed arrays in compound variables + has been modified so that it can be used as input. +00-10-18 Assignments with name references (typeset -n) will now + implicitly unreference an existing name reference. +00-10-17 A bug the += append operator when a single array element + is appended to a variable that is not an array has been fixed. +00-10-16 A bug in which the SIGCONT signal was being sent to + each process will kill -0 or kill -n 0 has been fixed. +00-10-12 The arithmetic evaluation portion has been rewritten to + perform a number of optimizations. +00-10-10 A bug in which name prefix matching ${!name.*} was not + checking name to see if it was a name reference has been fixed. +00-09-26 A bug in the multibyte version in which the width of for + non-printing characters was not correct has been fixed. +00-09-12 Made changes to get multibyte editing work on UWIN for windows +00-09-12 A bug in which multibyte characters would be displayed incorrectly + has been fixed. +00-08-08 Removed build dependency on iswprint() and iswalph(). +00-07-20 In some cases the read builtin would read more than a single + line from a pipe on standard input and therefore leave the seek + position in the wrong location. +00-07-05 If the directory / is on the path, a / will not be inserted + between the directory and the file name during path searching + to avoid searching // for systems that treat this specially. +00-06-26 A bug in which on rare occasions wait could return before all + jobs have completed has been fixed. +00-06-21 A bug in which backspace did not work correctly during the + R replace directive in vi-mode has been fixed. +00-06-12 Added variable name completion/expansion/listing to the set of + completions. Variable name completions begin with $ or "$ followed + by a letter. +00-05-09 --- Release ksh93j --- +00-05-09 Modified command substitution to avoid using /tmp files when + run on read-only file systems. +00-04-17 Modified printf to handle '%..Xc' and '%..Xs' options where X + is not an alpha character. Previous versions core dumped with this. +00-04-10 Changes to multibyte editing code were made to use standard + ISO C functions rather than methods devised before the standard. +00-04-09 Add %H options to printf to output strings with <"'&\t> properly + converted for use in HTML and XML documents. +00-04-07 Modified getopts builtin to handle \f...\f in usage string + by invoking specified function. +00-04-04 Added self generating man pages for bg, fc, fg, disown, jobs, + hist, let, ., and ulimit. +00-03-30 The append operator += has been added and can be used + for all assignments, strings, arrays, and compound variables. +00-03-30 Code was modified in several places to support automatic + generation of C locale dictionaries. +00-03-28 A bug in which the set and trap commands invoked with --name + type arguments would terminate the invoking script has + been fixed. +00-03-27 A bug in which the library path variable was not updated + correctly on some systems as described in the 'g' point + release has been fixed. +00-03-07 printf now returns a non-zero exit status when one of + its arguments cannot be converted to the given type. +00-03-05 The return value and error message for a command that + was found on the path but was not executable was set + incorrectly. +00-03-05 A prototype for ioctl() was removed from the vi edit mode. + +00-01-28 --- Release ksh93i --- +00-01-28 Most of the built-in commands and ksh itself are now + self documenting. Running command --man will produce + screen output. Running command --html produces the + man page in html format. +00-01-28 The getopts builtin can process command description + strings to produce man pages. +00-01-28 A bug in which a script could terminate when getopts + encountered an error when invoked inside a function + has been fixed. +00-01-28 When a symbolic link was specified as the name of + the script to invoke by name, the value of $0 was + set to the real file name rather than the link name + in some cases and this has been fixed. +00-01-28 A bug in which the precision given as an argument + to printf was not working has been fixed. + +99-03-31 --- Release ksh93h --- +99-03-31 The PATH search algorithm has been modified to look + for a file named .fpath in each bin directory and if + found, to search for functions in this directory if + it cannot find the command in that directory. +99-03-31 When performing pathname expansion, the shell checks + to see whether each directory it reads is case sensitive + or not, and performs the matching accordingly. +99-03-31 The %T format for printing formatted date/time. +99-03-31 The emacs and vi modes now handle arrow keys when + they use standard ANSI escape sequences. +99-03-31 The TAB key can be used for completion in emacs and viraw mode. +99-03-31 A bug in setting .sh.editchar during the KEYBD trap + for the MULTIBYTE option was fixed in release ksh93h. +99-03-31 A bug in shcomp for compilation of unary operators with [[...]] + has been fixed. +99-03-31 A bug in which the value of $? was changed when executing + a keyboard trap has been fixed. +99-03-31 The handling of SIGCHLD has been changed so that the + trap is not triggered while executing trap commands + to avoid recursive trap calls. +99-03-31 A bug in which a local variable in a function declared readonly + would generated an error when the function went out of + scope has been fixed. +99-03-31 A bug in which \<new_line> entered from the keyboard + with the KEYBD trap enabled has been fixed. +99-03-31 The error message for a misplaced ((, for example print ((3), + was often garbled and has been fixed. +99-03-31 A bug in the KEYBD trap in which escape sequences of the form + <ESC>[#~ were not being handled as a unit has been fixed. +99-03-31 A bug in which ksh would consider expressions like [[ (a) ]] + as syntax errors has been fixed. +99-03-31 A function defined as foo() without a function body + was not reported as a syntax error. +99-03-31 A bug in which ksh could run out of file descriptors when + a stream was repeatedly opened with exec and read from + has been fixed. + +98-04-30 --- Release ksh93g --- +98-04-30 The pipefail option has been added. With pipefail + enabled, a pipeline will not complete until all + commands are complete, and the return value will + be that of the last command to fail, or zero if + all complete successfully. +98-04-30 The name-value pair library uses the cdt library rather + than the hash library. This change should be transparent + to applications. +98-04-30 On the U/WIN version for Window 95 and Windows NT, + when a directory beginning with a letter followed by + a colon is given to cd, it is assumed to be an absolute + directory +98-04-30 When an executable is found on a given path, + the appropriate library path variable is prepended + with a corresponding library directory. +98-04-30 A bug in which a name reference could be created to + itself and later cause the shell to get into an infinite + loop has been fixed. +98-04-30 A bug in shcomp relating to compound variables was fixed. +98-04-30 A bug introduced in ksh93e in which leading 0's in -Z + fields caused the value to be treated as octal for arithmetic + evaluation has been fixed. +98-04-30 A bug when a name reference with a shorter name than + the variable it references was the subject of a compound + assignment has been fixed. +98-04-30 A bug which in which assignment to array variables in + a subshell could effect the parent shell has been + fixed. +98-04-30 read name?prompt was putting a 0 byte at the end of the + prompt on standard error. +98-04-30 A bug in [[ string1 > string2 ]] when ksh was run with -x + has been fixed. +98-04-30 A bug in which the escape character was not processed + correctly inside {...} when brace expansion is enabled + has been fixed, for example {\$foo}. +98-04-30 A bug in line continuation in here-documents has been + fixed. +98-04-30 The default base when not specified with typeset -i is + 10 in accordance with the documentation. Previously, + the value was determined by the first assignment. +98-04-30 A parsing bug in which a # preceded alphanumeric + characters inside a command substitution caused + a syntax error to be reported has been fixed. +98-04-30 A bug in which a decimal constant represented as 10#ddd + where ddd was more than five digits generated a syntax + error has been fixed. +98-04-30 A bug in here document expansion in which ${...} expansions + were split across buffer boundaries has been fixed. +98-04-30 The sh_fun() function now takes third argument which + is an argument list for the invoked discipline function + or built-in. +98-04-30 A callback function can be installed which will give + notification of file duplications and file closes. +98-04-30 When ksh is compiled on systems that do not use fork() + current option settings where not propagated to sub-shells. + +97-06-30 --- Release ksh93f --- +97-06-30 Hostnames in addition to host addresses can be given in + /dev/tcp/host/port virtual file names. +97-06-30 File name completion and expansion now quotes special + characters in file names from both emacs and vi edit modes. +97-06-30 An empty for list behave like a for list with null expansions. + It produces a warning message with sh -n. +97-06-30 The code has been modified to work with EBCDIC as well as ASCII. +97-06-30 A bug which would cause the secondary prompt to be + displayed when a user entered a literal carriage + return has been fixed. +97-06-30 A bug which caused ksh read -s name to core dump was + fixed. +97-06-30 A bug with the expansion of \} and \] inside double + quoted strings that also contained variable expansions + has been fixed +97-06-30 Changes in the ksh93e point release caused autoload + functions invoked from within command substitution + to fail. This has been fixed. +97-06-30 A bug in the processing of here-documents that could + prevent variable substitution to occur after $(...) command + substitution for long here documents has been fixed. +97-06-30 A bug caused by a race condition that could cause SIGTERM + to be ignored by a child process has been fixed. +97-06-30 A bug which prevented the startup of a coprocess immediately + after killing a running coprocess has been fixed. +97-06-30 ulimit foobar, where foobar is not an arithmetic + expression, now gives an error message as it did with ksh88 + instead of setting the file size limit to 0. +97-06-30 A bug which could cause an interactive shell to terminate when + the last process of a pipeline was a POSIX function was fixed. +97-06-30 A bug which could cause command substitution of a shell script + to core dump has been fixed. +97-06-30 A security hole was fixed in suid_exec. +97-06-30 Arithmetic functions such as pow() that take more than + one argument, did not work if arguments other than the + first contained parenthesized sub-expression. +97-06-30 The error message from a script containing an incomplete + arithmetic expression has been corrected. +97-06-30 A bug which caused a core dump on some machines when + the value of a name reference contained a positional + parameter and the name reference was not defined inside + a function has been fixed. +97-06-30 Arithmetic expressions now correctly handle hexadecimal + constants. +97-06-30 A bug in which integer variables could be expanded + with a leading 10# when declared with typeset -i + multiple times has been corrected. +97-06-30 A bug in which IFS wasn't correctly restored when + set within command substitution has been fixed. +97-06-30 The _ character is now considered as part of a word + with the M-f and M-b emacs directives as it was in ksh88. +97-06-30 A bug in brace pattern expansions that caused expressions + such as {foo\,bar,bam} to expand incorrectly have been fixed. + + +96-07-31 --- Release ksh93e --- +96-07-31 The math functions, atan2, hypot, fmod, and pow were added. +96-07-31 When a shared library is loaded, if the function lib_init() + is defined in the library, it is invoked the first time that + the library is loaded with builtin -f library. +96-07-31 The k-shell information abstraction database option, KIA, + has been revamped. +96-07-31 Empty command substitutions of the form $() now work. + whence -v foo now gives the correct result after calling + builtin -d foo. +96-07-31 A bug in right to left arithmetic assignment for which + the arithmetic expression (( y = x = 1.5 )) did not + yield 1 for y when x was declared typeset -i was fixed. +96-07-31 printf has been fixed to handle format containing \0 + and/or \0145 correctly. In addition, characters following + %b in the format string are no longer displayed when + the operand contains \c. +96-07-31 A bug in printf that could cause the %E format to + produce unnormalized results has been fixed. +96-07-31 A bug which causes some arithmetic expressions to be + incorrectly evaluated as integer expressions rather + that floating point has been fixed. +96-07-31 Functions defined inside a subshell no longer remain + defined when the subshell completes. +96-07-31 The error message from sh -c ';echo foo' has been + corrected. +96-07-31 The format for umask -S has been changed to agree + with the specification in the POSIX standard. +96-07-31 A bug that caused side effects in subscript evaluation + when tracing was enabled for subscripts using ++ or -- + has been fixed. +96-07-31 To conform to the Posix standard getopts has been changed + so that the option char is set to ? when it returns with + a non-zero exit status. +96-07-31 The handling of \} inside ${name...} has been fixed so + that the \ quotes the }. +96-07-31 A bug that caused the read builtin to resume execution + after processing a trap has been fixed. +96-07-31 [[ -s file ]] has been fixed so that if file is open + by ksh, it is flushed first. +96-07-31 In some cases attributes and sizes for non exported + variables weren't being reset before running a script. +96-07-31 The value of TMOUT was affected by changes make to + it in a subshell. +96-07-31 The jobs command did not reflect changes make by + sending the CONT signal to a command. +96-07-31 The error message for ksh -o unknown was incorrect. +96-07-31 Functions invoked as name=value name, did not use + values from the calling scope when evaluating value. +96-07-31 A bug in which the shell would reexecute previously + executed code when a shell script or coprocess was + run in the background has been fixed. +96-07-31 A bug in which an empty here-document would leave + a file descriptor open has been fixed. +96-07-31 A bug in which $(set -A array ...) would leave a + side effect has been fixed. +96-07-31 A discipline function for a global variable defined + within a function defined with the function keyword, + incorrectly created a local variable of the same name + and applied the discipline to it. + +95-08-28 --- Release ksh93d --- +95-08-28 The \ character was not handled correctly in replacement + patterns with ${x/pattern/replace}. +95-08-28 A bug with read in which the line did not end with + a new-line has been fixed. +95-08-28 A bug in file name generation which sometimes + appended a . for filenames that ended in / has + been fixed. +95-08-28 If a process is waited for after a status has + been returned by a previous wait, wait now + returns 127. +95-08-28 A bug with hist (fc) -e which prevented a command + to re-executed after it had been edited has been fixed. +95-08-28 A bug which prevented quoting from removing the meaning + of unary test operators has been fixed. +95-08-28 A bug with typeahead and KEYBOARD traps with the + MULTIBYTE option set has been fixed. +95-08-28 Builtin functions can take a third argument which is + a void*. +95-08-28 The nv_scan() function can restrict the scope of a walk + to the top scope. + +95-04-31 --- Release ksh93c --- +95-04-31 The expansion of "$@" was incorrect when $1 was the null + string. +95-04-31 A bug which could incorrectly report a syntax error in + a backquoted expression when a $ was preceded by \\ + has been fixed. +95-04-31 A bug which prevented the shell from exiting after + reporting an error when failing to open a script + has been fixed. +95-04-31 A bug that could lead to memory corruption when a + large here document that required parameter or command + substitution was expanded has been fixed. +95-04-31 A bug that could cause a core dump on some systems + after ksh detected an error when reading a function + has been fixed. +95-04-31 A bug which could cause a coprocess to hang when + reading from a process that has terminated has been fixed. +95-04-31 A bug which caused a script to terminate when set -e + was on and the first command of and && or || list + failed has been fixed. +95-04-31 A bug with here documents inside $(...) when the delimiter + word is an identifier has been fixed. +95-04-31 A bug which caused $0 to display the wrong value when + a script was invoked as an argument to the . command + and the eval command has been fixed. +95-04-31 A bug that could cause the built-in sleep to hang + has been fixed. +95-04-31 A bug introduces in 12/28/93b which caused the backslash + to be removed when it was followed by digit inside double + quotes in some instances has been fixed. +95-04-31 A bug which could cause a core dump if ksh was invoked with + standard input closed has been fixed. +95-04-31 A bug which could cause a core dump if typeset -A was + specified for an existing variable has been fixed. +95-04-31 Variables that were unset but had attributes such as readonly + and export were not listed with readonly, export and typeset. +95-04-31 Several problems with signals have been fixed. +95-04-31 A bug which prevented ulimit -t from working has been fixed. + Also, a bug in which failed ulimits could cause a core dump + has also been fixed. +95-04-31 A bug in expansion of the form ${name/#pattern/string} and + ${name/%pattern/string} has been fixed. +95-04-31 A bug which caused read -r on a line that contained only + blanks to get a non-null value has been fixed. +95-04-31 A bug introduced in the 'a' point release in which + ${x='\\'} expanded to \ when x was unset has been fixed. +95-04-31 A bug which prevented a trap on EXIT from being executed + when the last command in a script was a function invocation + has been fixed. +95-04-31 A bug which caused an interactive shell ignore input when + standard error was redirected to a file with exec, + and then restored with exec 2>&1 has been fixed. +95-04-31 An interactive shell turns on monitor mode even when + standard error has been redirected to a file. +95-04-31 A bug which could cause standard input to be incorrectly + positioned for the last command of a script has been fixed. +95-04-31 A bug in the edit modes which allowed walking back in + the history file for more than HISTSIZE commands has + beed fixed. +95-04-31 A bug which could cause a core dump if variable TMPDIR was + changed between two command substitutions has been fixed. +95-04-31. A bug which prevented a trap on EXIT from being cleared + has been fixed. +95-04-31 A bug fixed for the v directive in vi MULTIBYTE has been + fixed. +95-04-31 Code to for IFS handling of multibyte characters has + been added. +95-04-31 The displaying of multibyte strings in export, readonly, + typeset, and execution traces has been fixed. +95-04-31 Variables inside functions are now statically scoped. + The previous behavior was never documented. +95-04-31 Variables inside functions are now statically scoped. + The previous behavior was never documented. +95-04-31 A few changes have been made to the name-value library + that affect built-ins that use disciplines. The + changes allow disciplines to be shared by variables + and should make it possible to add new disciplines + without recompilation. +95-04-31 The name-value library interface has undergone significant + change for this revision. See the new nval.3 man page. + +94-12-31 --- Release ksh93b --- +94-12-31 Variables inside functions are now statically scoped. + The previous behavior was never documented. +94-12-31 If IFS contains two consecutive identical characters belonging + to the [:space:] class, then this character is treated as + a non-space delimiter so that each instance will delimit + a field. For example, IFS=$'\t\t' will cause two consecutive + tabs to delimit a null field. +94-12-31 The getopts command has a -a name option that specifies a + name that will be used for usage messages. +94-12-31 A bug which caused unset RANDOM to dump core has been + fixed. +94-12-31 A bug which prevented return for terminating a profile + or ENV file has been fixed. +94-12-31 A bug which prevented standard input from being + directed to /dev/null for background jobs when + monitor mode was turned off has been fixed. +94-12-31 Statements of the form typeset -options var[expr]=value + did not perform substitutions on expr as expected. +94-12-31 A bug which prevented the shell from sending a HUP + signal to some background jobs that were not disowned + has been fixed. +94-12-31 A bug which allowed a script to trap signals that are + ignored at the time that the shell was invoked by exec + has been fixed. +94-12-31 A bug which could cause a core dump when a discipline + function was unset within a discipline was fixed. +94-12-31 The typeset builtin now accepts a first argument of + + or - for compatibility with ksh88. +94-12-31 For compatibility with ksh88, the results of expansions + of command arguments will treat the extended character + match characters ()|& as ordinary characters. +94-12-31 A bug which caused read to fail on a file that was + open for read/write with <> when the first operation + was print or printf has been fixed. +94-12-31 When a job is suspended, it is put on the top of + the job list as required by the POSIX standard. +94-12-31 The value of OPTARG when an option that required + an argument but didn't have one was incorrect in the + case the the option string began with a :. +94-12-31 A bug which caused the terminal to get into a bad + state with some KEYBD traps in vi-mode has been fixed. +94-12-31 A bug which caused an invalid trap to cause a script + to terminate, rather than just return an error, has + been fixed. +94-12-31 Backreferencing sub-expressions in patterns and replacement + strings now works. +94-12-31 A bug in chmod which caused the -R option to fail has + been fixed. +94-12-31 More signal names have been added for Solaris + +94-06-30 --- Release ksh93a --- +94-06-30 An expansion bug which causes portions of a word after + a $((...)) expansion that contains a nested $var expansion + to be lost has been fixed. +94-06-30 A bug that caused a core dump when a script that did not + have PWD set and did a cd inside command substitution + has been fixed. +94-06-30 A bug which caused a core dump on some machines when + the LANG variable was assigned to has been fixed. +94-06-30 A bug which incorrectly handled set disciplines that + performed arithmetic evaluation when the discipline + was called from the arithmetic evaluator has been fixed. +94-06-30 A bug caused by an EXIT trap inside a function that + was executed in a subshell was fixed. +94-06-30 If foo is a function, and not a program, then command foo + now reports that foo isn't found rather than invoking foo. +94-06-30 The previous version incorrectly listed -A as an + invocation option. The -A option is only for set. +94-06-30 A bug was fixed which caused ksh to loop when execution trace + was enabled and the PS4 prompt required command substitution. +94-06-30 A bug which could cause the job control switch character + to be disabled when a script that enabled monitor mode + terminated was fixed. +94-06-30 A bug in the macro expansion global replacement operator //, + when the pattern began with a [ or +( has been fixed. +94-06-30 A bug which prevented ~ expansion from occurring when + it was terminated with a colon inside an assignment + has been fixed. +94-06-30 A bug in the dot command which prevented autoload functions + from working has been fixed. +94-06-30 A bug which caused a variable to be unset if the + its value were expanded inside a set discipline has + been fixed. +94-06-30 Whence -a now longer reports that a defined function + is undefined. +94-06-30 A bug on some systems in which $0 would be incorrect + in scripts invoked by name has been fixed. +94-06-30 Here documents with an empty body now work. +94-06-30 A bug which disabled argument passing and resetting + of options for a script invoked by name inside a + function has been fixed. +94-06-30 A bug in which an EXIT trap set the caller of a function + would be executed if a command called inside a function + was not found has been fixed. +94-06-30 A bug which allowed a script to trap signals that are + ignored at the time that the shell was invoked has + been fixed. +94-06-30 A bug which caused 2<&1- when applied to a shell built-in + to leave standard input closed has been fixed. +94-06-30 A bug which caused the shell to incorrectly parse + $() command substitutions with nested case statements + has been fixed. + |