You have permission to copy the zsh distribution in whole or in part
as long as you don't try to make money off of it, or pretend that you
wrote it.

This is zsh 2.3.1.

To get this shell running, cd into the src directory and type
"buildzsh".  Someone recently tested it on the following machines,
where it compiled just by running this script:

Apollo (Motorola & PRISM) running Domain SR10.4 cc 6.9 
BBN TC2000 running nX 3.0.1, 3.1.0
CCI Tahoe running BSD 4.3-tahoe
DEC (various) running Ultrix 4.2, 4.2A
DEC Alpha running OSF-1
Fujitsu F2600 running SVR4
HP 9000 (various) running HP-UX 7.0x, 8.0x, 9.01
IBM RS6000 running AIX 3.2
MIPS running RISC/OS 4.x
NeXT running NeXTSTEP 2.x, 3.0
SGI running IRIX 4.0.5
Sequent running DYNIX (additional work needed for DYNIX/PTX)
Sony running NeWS/OS 3.2 (BSD 4.3)
Sun-3, Sun-4 running SunOS 4.0.3, 4.1.x

Zsh was originally written by Paul Falstad, who has transferred the 
current development of the shell to the zsh mailing list:

	zsh-list@cs.uow.edu.au

To subscribe to the list, send a request to "zsh-request@cs.uow.edu.au".  
This release consists of patches contributed to the mailing list, and 
the mailing list is continuing to work on zsh 2.4.

The following people contributed patches for the 2.3 release:

Hans Albertsson			Tero Kivinen
Eric Arnold			Karsten Kuenne
Bas de Bakker			Ben Liblit
Marc Boucher			Rick Lyons
Carlos Carvalho			Jim Mattson
Robert Clare			Jean-Jacques Moreau
Daniel Dignam			J.B. Nicholson-Owens
Stephen Dum			Rick Ohnemus
Carl Edman			Wolf N. Paul
Christian Finger		Bart Schaefer
Brian Gregory			Dwight Shih
John Guthrie			Peter Stephenson
Johan Hagman			Klaus Wacker
Jonathan Hardwick		Irving Wolfe

Tabstops are 3 spaces.  If you're going to look at this code, run it
though "expand -3" first, or set your tab stops every 3 spaces.

Modification history:

2.3.1-2.3.0:
o fewer compilation warnings
o parsing error in function definition fixed
o problems with '.' in vi-mode fixed
o parsing bug with ! and coproc fixed
o strange while loop behavior fixed
o "TRAPx TRAPy {}; unfunction TRAPy" fixed
o array-size checking for integers was off by one (fixed)

2.3.0-2.2.0:
o improved portability
o fewer compilation warnings
o texinfo documentation
o several memory leaks fixed, and a few references to freed memory eliminated
o several parsing bugs fixed, and now less illegal syntax is accepted
o improved (i.e. repaired) signal handling
o RFS support
o rc files reorganized (see INVOCATION in the man page)
o ksh compatibility mode when zsh is invoked as "ksh"
o nested variables (e.g. echo ${${var#?}%?})
o stringized array variables ("$a" where a is an array)
o can now set array slices and array elements by subscript
o 4 new glob identifiers:
    -  a[[-|+]n]   files accessed within last n days (-), files accessed
                   more than n days ago (+), or files accessed n days ago.
    -  m[[-|+]n]   as above for modified files.
    -  c[[-|+]n]   as above for the modification of an inode of a file.
    -  L[[-|+]n]   files less than n bytes (-), more than n bytes (+),
                   or exactly n bytes in length.
o new prompt escapes and new syntax for numeric arguments to prompt escapes
   (e.g. %C3 -> %3C)
o %R and %r now only recognized in spell-checking prompts
o watch notme (like watch all, except for the user's own activity)
o hash table listings (from set, alias, compctl...) are now sorted
o New arguments to fc builtin:
    -f  print full time stamp (including date)
    -E  print date in European format (dd.mm.yyyy)
    -I  incremental history update (with -A or -W)
o new EXTENDEDHISTORY option for saving timestamps to history file
o new {up,down}-line-or-search keybindings
o cd processing (chpwd, etc.) no longer occurs if new directory is the
  same as the previous one
o filename completion works on named directories
o named directories now have to be strings
o username lookup more efficient, new username lookup routine for NIS
o sample run-help function to make use of the help directory
o sample zed function (use the zle line editor to edit a file)
o If compctl is just -h for a command, hostname completion will now be
  performed after an @.  Compctl is set to just -h for commands in hostcmds.
o zsh no longer forks /bin/sh for any shell commands (e.g. STTY)
o old AUTOREMOVESLASH option documented and repaired.
o lexically significant quotes and backslashes are now retained by builtins
o backslashes now end variable names and suffice in a here document 
  terminator to inhibit interpretation of the here document
o answering 'n' to 'remove all files in <arg>?' just removes the individual
  argument from the rm command line, as long as other arguments remain
o ALLEXPORT now exports existing variables when they are modified
o whitespace now handled properly by read builtin
o ${#@} and ${#*} are now recognized
o colon modifers now work with array variables 
  (except :x and :q, which only pretend to work)
o ${...=...} handling fixed
o cd xx/.. no longer takes you to first directory of $cdpath
o return in a loop in a function now exits the function
o return from a function in a loop no longer exits the loop
o several fixes to 'fc' builtin
o 'noglob rm *' no longer prompts for confirmation
o changes to cdpath, manpath, etc. are now reflected in the environment
o vibackwardkillword fixed to use vi style words
o not found message no longer printed if 'whence -a foo' doesn't find anything
o current dir is removed from directory stack if PUSHD_IGNORE_DUPS is set
o cd now complains of invalid directory stack arguments
o extra files are no longer left open on nullexec
o exit status is set correctly for shells started '-c'
o consistent handling of -i and -m options
o null arguments are now included in array expansion
o job text corrected for coprocesses
o a quoted command substitution that returns no text is no longer discarded
  (e.g. set a "`echo`" b ; echo $#)
o IFS allows null fields
o read of more variables than available in the input no longer blocks shell
o dups of nonexistent file handles fixed
o confusion regarding controlling terminal fixed
o canonical directory naming fixed
o zsh no longer hangs on backquote expansion (e.g. echo `pwd`)
o echo foo >>(cat) now redirects stdin before closing the pipe
o problems with zsh not exiting fixed
o bad patterns now work when NOBADPATTERN is set
o exporting of special shell variables fixed
o history references now work only in interactive shells
o history file no longer saved if history is not established
o killing a command in a loop now kills the loop
o compctl -k now essentially ignores non-array arguments
o transpose-chars now works on one character lines and on the second 
  character of a line
o neg-argument now works for multiple digits
o statusline no longer trashed when searching in vi mode
o print -P can now be invoked from a signal handler without confusing zle
o prototype files automatically generated during compilation
o GLOBALZSHENV now defined by default as "/etc/zshenv"
o off-by-one error in compiling signal list fixed

2.2.0-2.1.0:
o should be faster in general
o fewer compilation warnings
o SPROMPT now uses %R instead of %s for the incorrect string
o no longer tries to create FIFOs on NeXTs (thereby causing a panic)
o now gets usernames from NIS on irises without crashing (SGI's getpwnam()
  called my strdup(), the pricks.  Took me forever to find that.  :-) )
o fewer 7-bit assumptions
o which/whence/type have new options:
  -a = all (find all occurrences of command in path)
  -c = csh-style which (default for "which" command)
o error message for cd str1 str2 is fixed
o relative paths (including .) in cdpath now work
o exclusion patterns in glob: ls *.c~lex.c prints all .c files but lex.c
o bug with command substitution in chpwd fixed (buffers flushed twice)
o relative paths in $path now work
o "kill -9 -FOO" no longer kills shell
o new options to history/fc:
	-d = prints date commands were entered
	-D = prints running time of commands
o "history <num>" prints all commands SINCE <num> as well
o history stored differently - should be more efficient
o bg'ing a suspended zsh no longer causes problems
o "set" no longer prints ONLY exported params (duh)
o functions +t now allowed
o redirection is done AFTER filename generation
o print changes:
  o print -u# prints to fd #
  o print -p prints to coproc
  o -D and -P perform \ substitution first
  o print -0 changed to print -N
o read changes:
  o read -u# reads from fd #
  o read -p reads from coproc
  o read -z waits for input if nothing on buffer stack
  o no longer reads from fd 0 if shell is getting input from there
  o echo -n foo | read x  now works
o getopts is now POSIX conformant
o compctl builtin added, replacing hostcmds, foocmds, etc.  Controls
  completion of various commands in zle.
  format: compctl -options cmdnams ...
  options tell where to get possible matches from, and include:
	 -c = command names
	 -f = filenames
	 -h = hostnames ($hosts)
	 -o = options
	 -v = vars
	 -b = bindings
	 -k name = elements of $name array
  Any number of these options may be used together.
  In addition, compctl -C -options will set the default completion
  names when in command position (by default -c), and compctl -D -options
  will set the default completion names used after unrecognized commands
  or after redirections (by default -f).
o foo && bar || fuu now works
o ttyctl builtin added
  ttyctl -f freezes the tty.  no changes made to the tty settings by
	 external programs will be honored when this command is in effect.
  ttyctl -u unfreezes the tty.
  typically, "ttyctl -f" would be used in a zlogin or zshrc script after
  "stty" has been called to set up the terminal.
o [[ -e file ]] is now equivalent to [[ -a file ]]
o [[ -h file ]] is now equivalent to [[ -L file ]]
o the path is now hashed incrementally.
  o if the HASHCMDS option is unset, path hashing is not done at all.
  o if the HASHCMDS option is set but HASHDIRS is unset, commands are placed
	 in the hash table when first executed.
  o if the HASHCMDS and HASHDIRS options are both set, commands are placed
	 in the hash table when first executed, along with all commands in
	 the directory that command was found in (and all directories earlier
	 in the path).  This is the default situation.
o "for i (*.c) do /bin/echo $i ; done | more" no longer hangs
o coprocesses now work properly
o READNULLCMD is now used instead of NULLCMD for "< file"
o POSTEDIT is printed whenever the editor exits
o rm path/path/* is now reported by checkrmall()
o cmd >&- works
o cmd >>! file works
o time cmd no longer forks an extra process
o setopt printexitvalue ; echo `false` no longer prints anything
o here documents work inside eval, etc.
o $(...) works inside here documents
o "time" by itself prints the shell timings
o locals in precmd() or chpwd() work
o new glob qualifiers
  o pat(M) sets markdirs, pat(^M) unsets it
  o pat(N) sets nullglob, ...
  o pat(D) sets globdots, ...
o ls * only sorts numeric filenames specially if NUMERICGLOBSORT is set
o setopt braceccl lets "echo {a-zA-Z}" work
o new options: pushdignoredups nohistbeep overstrike
o ls **/file is now equivalent to ls ****/file
o !'s in history are now escaped when you return to them
o history substitution is not done in script files
o echo $(!-2) works
o histverify and correct 'e' no longer put the edit line in the history
o the :x, :q, and :gs modifiers work properly now
o zsh -c 'ls =(ls)' no longer hangs
o VSWTCH is now set to ^Z on the irises
o zsh & no longer causes havoc
o USERNAME and LOGNAME are kept separate
o $manpath has been added for easy access to the $MANPATH components
o zsh now realizes if it is running under emacs, and resigns itself to
  the fact rather than panicking
o SIGQUIT is ignored in the PRODUCTION version of zsh, and kills the shell
  in the DEBUG version, rather than vice versa.
o GLOBALZSHENV has been added, and GLOBALZPROFILE is sourced in the
  proper place
o "kill %" no longer causes the prompt to be printed 3 times if notify
  is set on a NeXT
o REPORTTIME has been added; if a job runs longer than this many seconds,
  timing statistics are reported
o timing statistics now include a job name (%J)
o no longer talks about SIGHUPed jobs if the kill failed
o no longer talks about running jobs which don't exist if you do eval exit
  or if you have notify unset
o foo=bar comman[tab], for/select/foreach i (*.c[tab] both work
o [base]num inside $[...] works
o foo=pat(n|ern) works
o cd - prints the new directory
o l[tab] works if l is an alias
o select foo ; ... works (in $argv is assumed)
o select reads from the right input
o math identifiers can now contain numbers and _'s.
o lots of serious memory heap trashing and leaks fixed
o echo $HOME[*] no longer crashes the shell
o SIGWINCH now changes LINES and COLUMNS in the environment
o typeset +r TTY; TTY=foo no longer causes problems
o ~ substitution is no longer done in FIGNORE
o assignment to SECONDS works
o "else if" is no longer a synonym for "elif" <thud>
o lots of problems with null lists in flow constructs fixed
o no correction done for >file
o echo ${foo%bar is no longer weird
o modifying array substitutions works
o ^O can be bound to something
o command substitution in signal handlers no longer causes problems
o spelling correction is better ($PATH is corrected), and SPROMPT
  allows all the regular PROMPT escapes
o new prompt escape sequence: %D{...} formats ... part using strftime
o shell input no longer butchered using IFS
o vi cmd mode has 's' bound to visubstitute, as it should be
o you can use ^XS and ^XR in i-search mode
o bindings to ^Z and ^@ work now on the irises
o ^V{^S,^Q,^Z,etc} now works on sgttyb victims
o nopromptclobber changed to nopromptcr
o vi 'u' undo works a little better (?)
o ESC-key bindings aren't screwed up if VISUAL is set to vi
o newline in prompt now works reliably
o vi change and delete work with forward-word/search, etc.
o somewhat suboptimal screen refresh on irises fixed (several seconds
  per character inserted when TERM=xterm??)
o select list printing slightly different
o magic-space's handling of hatchars "fixed"

0.03-1.0:
	- "..../" is now "****/".  I know this isn't backward compatible,
	  but I had no choice; the string "..../" was unquotable.
	- parser was rewritten and improved
	- completion was improved, several bugs fixed (including
	  the "$([tab]" bug)
	- vi mode editing is improved
	- the value of PWD and OLDPWD in the environment now change
	- the PROMPT formatting strings %W and %D now print the month
	  correctly
	- >&2 echo "error message" no longer prints "bad file number"
	- ${foo%pat} no longer alters the value of foo
	- $_ works
	- ALL_EXPORT no longer causes let statements to crash the shell
	- continue works
	- echo $MAIL no longer dumps core if MAIL is null
	- the new tty driver is selected by default
	- the s modifier no longer complains if it can't find the string
	  to substitute
	- list-choices no longer fignores files
	- cd is now smarter about symlinks
	- negative subscripts other than -1 now work
	- $(<filename) works better if filename contains $, ~, or =
	- rehash no longer wastes memory
	- with name=value assignments, name is checked to see if it is
	  a valid identifier
	- !1; !2 no longer eats the semicolon
	- $foo:h never returns the empty string if foo starts with /
	- select crashed with some compilers
	- problems with aliases in <(...) constructs have been fixed
	- links pointing to nowhere are denoted with an '&' in listtypes
	- negative arguments are supported
	- the shell does not screw around with the tty so much
	- lots of other stuff

0.02-0.03:
	- two stupid bugs that were introduced in the last patch were fixed:
	  - multiple command substitution on a line failed
	  - a file descriptor leak caused the shell to crash after a while
	- added 'An Introduction to the Z Shell'
	- behaves properly when the tty session dies suddenly
	- had a serious memory leak on some systems
	- the test and [ builtins have been added, although [[...]]
	  is more efficient
	- in your prompt, %m2 now prints foo.bar, %m3 prints foo.bar.com, etc.
	- the -D and -P options to print have been added
	- the NULLCMD and ZDOTDIR parameters have been added
	- ${*:-foo} works
	- "$@" and "$arr[@]" work like ksh
	- .zprofile is sourced before .zshrc in login shells
	- the CSHJUNKIEQUOTES and PUSHDMINUS options have been added
	- REAL_TTY compilation switch added
	- aliases beginning with a space cause the history line to be junked
	  if HISTIGNORESPACE is set
	- echo prints bad options instead of complaining about them
	- "set -o" no longer dumps core
	- "alias a=alias; date >a" no longer creates a file called "alias"
	- "function foo() \n { date }" is now legal (the () and the newline
	  are allowed)
	- nested brace expressions work properly
	- disabled commands stay disabled after a rehash (or after the shell
	  finishes sourcing your .zshrc)
	- corrected aliases work
	- executables in the currect directory are now completed
	- in "case foo", "foo" is not interpreted as a directory name with autocd
	- aliases were not always interpreted properly after a completion
	- bindkey '^?' didn't work
	- echo ${HOST:-{bar}} didn't work
	- editor update is more efficient in some cases
	- menucomplete works even better
	- assign to an array element "foo[1]=bar" didn't always work
	- doesn't print directories like "~tmp" if HOME=/
	- quotes in case statement patterns caused problems
	- pressing ^C right after typing "fc" caused the editor to share
	  the tty with the shell
	- echo $(echo 2) produced no output, but echo $(echo x) worked fine (weird)

0.01-0.02:
	- added script to convert most csh aliases to zsh aliases or functions
	- fc -l (history) now appears in the history itself; HISTNOSTORE
	  option added to get old behavior
	- the POSIX process group race has been fixed; so 'w | more' should
	  no longer hang
	- FCEDIT added, to match the documentation
	- %{...%} in the prompt added
	- execute-named-cmd and execute-last-named-cmd bindings added
	- sources ~/.zshenv in all shells, even if not interactive, unless
	  -f is given
	- ^ and # are no longer `magic' by default; use EXTENDEDGLOB option
	  to use them
	- now checks for tty sanity before each command
	- if the right side of a variable assignment expands to more than
	  one word, array assignment is assumed; so foo=*.c now works
	- ~foo is no longer expanded in completion
	- select now works even if the argument list is not sorted
	- menucompletebeep option added
	- emacs mode is now 8-bit clean by default; use bindkey -em
	  to get your meta key back
	- fc -R, fc -W added
	- nocorrect added
	- lines from history file are now split into words at spaces
	- glob-complete, accept-and-menu-complete,
	  beginning-of-line-hist, end-of-line-hist bindings added
	- insert-last-word bound to M-. in emacs mode by default; now moves
	  back through the history if run repeatedly
	- J and K now bound to history search in vi mode
	- delete-char no longer core dumps on an empty line
	- menu-complete works better
	- the editor checks the settings of VISUAL and EDITOR to set
	  default bindings
	- using [[ ... ]] expressions on a symbolic link works as expected
	- various problems with globbing were fixed
	- xx is now the same as !! if HISTCHARS=x
	- added config.h entry for compilers that don't know about void *
	- lexical analysis made more efficient
	- "if echo $? ; then : ; fi" no longer always prints 0
	- removed all enums, '\x7f's from code
	- in "case foo in bar) xxx ;; esac", foo and bar are no longer subject
	  to command alias expansion
	- works on platforms where toupper('A') != 'A'
	- \e sequence added to echo
	- + options now work with set
	- AUTORESUME and AUTOCD work better
	- getopts works better (?)
	- spell checking works better
	- "let 2+3=" no longer crashes the shell
	- "foo=bar; echo ${=foo}" no longer crashes the shell
	- "zsh -c" or "zsh -o" no longer causes a core dump
	- "unset MAIL; echo $MAIL" no longer causes a core dump
	- "(xterm&xterm&)&" no longer causes a core dump
	- "echo $HOM[tab]" beeps instead of deleting "$HOM"
	- incremental history search works better
	- the pwd of a fg'd job is now printed _before_ resuming it
	- rv=`echo -n foo` no longer puts garbage in $rv
	- "=1/*" now works as expected
	- ^Z can now be bound to something
	- the STTY parameter and the builtin builtin are now documented
	- IFS=x; foo=`echo foo` no longer puts a newline in $foo
	- $status added for csh compatibility
	- arrays are automatically expanded if you say 'foo[1234]=x'
	- shell now ignores SIGQUIT (it was commented out before :-)
	- the times builtin works on systems where times() returns > 0
	- no longer hangs the terminal if you ^S before flow control
	  is turned off
	- "date ; read foo" now works in interactive shells
	- <<-foo is now parsed as <<- foo, not << -foo
	- fixed various errors in the documentation

0.00-0.01:
	- %M and %m now work as documented.
	- bad things no longer happen if COLUMNS is set to 0
	- SH_WORD_SPLIT and ${=foo} now work
	- the default value of WORDCHARS includes more characters
	- if the cursor is at the end of the line, vi-cmd-mode
	  moves it back one position.
	- delete-char now acts more like x in vi.
	- a "prompt" parameter has been added, which is equivalent to
	  PROMPT and PS1.
	- zsh no longer expands symbolic links.  The CHASELINKS option
	  has been provided to get the old behavior.
	- history searches ignore lines that are the same as the line
	  in the buffer.
	- you can get a literal ! in your prompt now with \!.
	- -z, -n, and != in [[ ... ]] expressions work.
	- the shell no longer hangs when inputting "[[ ]\n"
	- the "menu-complete" and "menu-expand-or-complete" bindings have
	  been added.
	- menu-complete no longer beeps.
	- reverse-menu-complete no longer dumps core if it gets called before
	  a normal completion.
	- typeahead lines are no longer thrown away on machines with sgttyb.
	- !foo no longer matches lines with 'foo' in them (not at the beginning)
	- kill -9 % no longer kills the shell
	- no longer sources .zshrc from shell scripts or with -c
	- no longer needs limits.h, strtol
	- exporting HOSTTYPE, etc. works
	- fixed serious bugs related to . in path
	- numbers in weird bases now work

Known Bugs
	- terminal acts weird under OpenWindows cmdtool
	- xterm run in background inherits bad terminal modes