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zshzle(1)





NAME

       zshzle - zsh command line editor


DESCRIPTION

       If the ZLE option is set (which it is by default in interactive shells)
       and the shell input is attached to the terminal, the user  is  able  to
       edit command lines.

       There  are  two  display  modes.   The  first,  multiline  mode, is the
       default.  It only works if the TERM parameter is set to a valid  termi-
       nal type that can move the cursor up.  The second, single line mode, is
       used if TERM is invalid or incapable of moving the cursor up, or if the
       SINGLE_LINE_ZLE  option  is set.  This mode is similar to ksh, and uses
       no termcap sequences.  If TERM is "emacs", the ZLE option will be unset
       by default.

       The  parameters BAUD, COLUMNS, and LINES are also used by the line edi-
       tor.  See Parameters Used By The Shell in zshparam(1).


KEYMAPS

       A keymap in ZLE contains a set of bindings between  key  sequences  and
       ZLE commands.  The empty key sequence cannot be bound.

       There can be any number of keymaps at any time, and each keymap has one
       or more names.  If all of a keymap's names are deleted, it  disappears.
       bindkey can be used to manipulate keymap names.

       Initially, there are four keymaps:

       emacs  EMACS emulation
       viins  vi emulation - insert mode
       vicmd  vi emulation - command mode
       .safe  fallback keymap

       The  `.safe'  keymap is special.  It can never be altered, and the name
       can never be removed.  However, it can be linked to other names,  which
       can  be  removed.   In  the  future other special keymaps may be added;
       users should avoid  using  names  beginning  with  `.'  for  their  own
       keymaps.

       In  addition  to  these  four  names, either `emacs' or `viins' is also
       linked to the name `main'.  If one of the VISUAL or EDITOR  environment
       variables contain the string `vi' when the shell starts up then it will
       be `viins', otherwise it will be `emacs'.  bindkey's -e and -v  options
       provide a convenient way to override this default choice.

       When  the  editor starts up, it will select the `main' keymap.  If that
       keymap doesn't exist, it will use `.safe' instead.

       In the `.safe' keymap, each single key is bound to self-insert,  except
       for  ^J  (line  feed)  and  ^M (return) which are bound to accept-line.
       This is deliberately not pleasant to use; if you are using it, it means
       you deleted the main keymap, and you should put it back.

   Reading Commands
       When ZLE is reading a command from the terminal, it may read a sequence
       that is bound to some command and is also a prefix of  a  longer  bound
       string.  In this case ZLE will wait a certain time to see if more char-
       acters are typed, and if not (or they don't match any longer string) it
       will  execute  the  binding.  This timeout is defined by the KEYTIMEOUT
       parameter; its default is 0.4 sec.  There is no timeout if  the  prefix
       string is not itself bound to a command.

       The  key  timeout  is also applied when ZLE is reading the bytes from a
       multibyte character string when it is in the appropriate  mode.   (This
       requires that the shell was compiled with multibyte mode enabled; typi-
       cally also the locale has characters with the UTF-8 encoding,  although
       any multibyte encoding known to the operating system is supported.)  If
       the second or a subsequent byte is not read within the timeout  period,
       the shell acts as if ? were typed and resets the input state.

       As  well  as ZLE commands, key sequences can be bound to other strings,
       by using `bindkey -s'.  When such a sequence is read,  the  replacement
       string  is pushed back as input, and the command reading process starts
       again using these fake keystrokes.  This input can itself  invoke  fur-
       ther replacement strings, but in order to detect loops the process will
       be stopped if there are twenty such replacements without a real command
       being read.

       A  key sequence typed by the user can be turned into a command name for
       use in user-defined widgets with  the  read-command  widget,  described
       below.


ZLE BUILTINS

       The  ZLE  module  contains  three related builtin commands. The bindkey
       command manipulates keymaps and key bindings; the vared command invokes
       ZLE  on the value of a shell parameter; and the zle command manipulates
       editing widgets and allows command line access  to  ZLE  commands  from
       within shell functions.

       bindkey [ options ] -l
       bindkey [ options ] -d
       bindkey [ options ] -D keymap ...
       bindkey [ options ] -A old-keymap new-keymap
       bindkey [ options ] -N new-keymap [ old-keymap ]
       bindkey [ options ] -m
       bindkey [ options ] -r in-string ...
       bindkey [ options ] -s in-string out-string ...
       bindkey [ options ] in-string command ...
       bindkey [ options ] [ in-string ]
              bindkey's  options  can be divided into three categories: keymap
              selection, operation selection, and others.  The  keymap  selec-
              tion options are:

              -e     Selects keymap `emacs', and also links it to `main'.

              -v     Selects keymap `viins', and also links it to `main'.

              -a     Selects keymap `vicmd'.

              -M keymap
                     The keymap specifies a keymap name.

              If  a keymap selection is required and none of the options above
              are used, the `main' keymap is used.   Some  operations  do  not
              permit a keymap to be selected, namely:

              -l     List all existing keymap names.  If the -L option is also
                     used, list in the form of bindkey commands to create  the
                     keymaps.

              -d     Delete  all  existing  keymaps  and  reset to the default
                     state.

              -D keymap ...
                     Delete the named keymaps.

              -A old-keymap new-keymap
                     Make the new-keymap name an alias for old-keymap, so that
                     both  names  refer  to  the  same keymap.  The names have
                     equal standing; if either is deleted, the other  remains.
                     If there is already a keymap with the new-keymap name, it
                     is deleted.

              -N new-keymap [ old-keymap ]
                     Create a new  keymap,  named  new-keymap.   If  a  keymap
                     already  has  that name, it is deleted.  If an old-keymap
                     name is given, the new keymap  is  initialized  to  be  a
                     duplicate  of it, otherwise the new keymap will be empty.

              To use a newly created keymap, it  should  be  linked  to  main.
              Hence  the  sequence  of commands to create and use a new keymap
              `mymap'  initialized  from  the  emacs  keymap  (which   remains
              unchanged) is:

                     bindkey -N mymap emacs
                     bindkey -A mymap main

              Note  that  while `bindkey -A newmap main' will work when newmap
              is emacs or viins, it will not work for vicmd, as switching from
              vi insert to command mode becomes impossible.

              The  following  operations act on the `main' keymap if no keymap
              selection option was given:

              -m     Add the built-in set of meta-key bindings to the selected
                     keymap.    Only   keys  that  are  unbound  or  bound  to
                     self-insert are affected.

              -r in-string ...
                     Unbind the specified in-strings in the  selected  keymap.
                     This  is  exactly  equivalent  to  binding the strings to
                     undefined-key.

                     When -R is also used, interpret the in-strings as ranges.

                     When  -p  is  also used, the in-strings specify prefixes.
                     Any binding that has the given in-string as a prefix, not
                     including  the  binding for the in-string itself, if any,
                     will be removed.  For example,

                            bindkey -rpM viins '^['

                     will remove all bindings in the vi-insert  keymap  begin-
                     ning with an escape character (probably cursor keys), but
                     leave the binding for the escape character itself (proba-
                     bly  vi-cmd-mode).   This is incompatible with the option
                     -R.

              -s in-string out-string ...
                     Bind each in-string to each out-string.   When  in-string
                     is  typed,  out-string will be pushed back and treated as
                     input to the line editor.  When -R is also  used,  inter-
                     pret the in-strings as ranges.

              in-string command ...
                     Bind  each  in-string  to each command.  When -R is used,
                     interpret the in-strings as ranges.

              [ in-string ]
                     List key bindings.  If an  in-string  is  specified,  the
                     binding  of  that  string  in the selected keymap is dis-
                     played.  Otherwise, all  key  bindings  in  the  selected
                     keymap  are  displayed.  (As a special case, if the -e or
                     -v option is used alone, the keymap is  not  displayed  -
                     the  implicit  linking  of keymaps is the only thing that
                     happens.)

                     When the  option  -p  is  used,  the  in-string  must  be
                     present.   The  listing shows all bindings which have the
                     given key sequence as a prefix, not including  any  bind-
                     ings for the key sequence itself.

                     When  the  -L  option is used, the list is in the form of
                     bindkey commands to create the key bindings.

       When the -R option is used as noted above, a valid  range  consists  of
       two  characters,  with  an  optional  `-' between them.  All characters
       between the two specified, inclusive, are bound as specified.

       For either in-string or out-string, the following escape sequences  are
       recognised:

       \a     bell character
       \b     backspace
       \e, \E escape
       \f     form feed
       \n     linefeed (newline)
       \r     carriage return
       \t     horizontal tab
       \v     vertical tab
       \NNN   character code in octal
       \xNN   character code in hexadecimal
       \M[-]X character with meta bit set
       \C[-]X control character
       ^X     control character

       In  all  other  cases,  `\' escapes the following character.  Delete is
       written as `^?'.  Note that `\M^?' and `^\M?' are  not  the  same,  and
       that  (unlike  emacs),  the bindings `\M-X' and `\eX' are entirely dis-
       tinct, although they are initialized to the same bindings  by  `bindkey
       -m'.

       vared [ -Aache ] [ -p prompt ] [ -r rprompt ]
         [ -M main-keymap ] [ -m vicmd-keymap ] name
              The  value of the parameter name is loaded into the edit buffer,
              and the line editor is invoked.  When the editor exits, name  is
              set  to  the  string  value returned by the editor.  When the -c
              flag is given, the parameter is created if  it  doesn't  already
              exist.   The  -a  flag  may  be given with -c to create an array
              parameter, or the -A flag to create an  associative  array.   If
              the  type of an existing parameter does not match the type to be
              created, the parameter is unset and recreated.

              If an array or array slice is being edited, separator characters
              as  defined  in  $IFS  will be shown quoted with a backslash, as
              will backslashes themselves.  Conversely, when the  edited  text
              is  split  into an array, a backslash quotes an immediately fol-
              lowing separator character or backslash; no other  special  han-
              dling of backslashes, or any handling of quotes, is performed.

              Individual  elements  of  existing  array  or  associative array
              parameters may be edited by using subscript syntax on name.  New
              elements are created automatically, even without -c.

              If  the  -p flag is given, the following string will be taken as
              the prompt to display at the left.  If the -r flag is given, the
              following  string  gives the prompt to display at the right.  If
              the -h flag is specified, the history can be accessed from  ZLE.
              If  the -e flag is given, typing ^D (Control-D) on an empty line
              causes vared to exit immediately with a non-zero return value.

              The -M option gives a keymap to link to the main  keymap  during
              editing,  and  the -m option gives a keymap to link to the vicmd
              keymap during editing.  For vi-style editing, this allows a pair
              of  keymaps  to override viins and vicmd.  For emacs-style edit-
              ing, only -M is normally needed but the -m option may  still  be
              used.  On exit, the previous keymaps will be restored.

       zle
       zle -l [ -L | -a ] [ string ... ]
       zle -D widget ...
       zle -A old-widget new-widget
       zle -N widget [ function ]
       zle -C widget completion-widget function
       zle -R [ -c ] [ display-string ] [ string ... ]
       zle -M string
       zle -U string
       zle -K keymap
       zle -F [ -L ] [ fd [ handler ] ]
       zle -I
       zle widget [ -n num ] [ -Nw ] [ -K keymap ] args ...
              The  zle builtin performs a number of different actions concern-
              ing ZLE.

              With no options and no arguments, only the return status will be
              set.  It is zero if ZLE is currently active and widgets could be
              invoked using this builtin command and non-zero otherwise.  Note
              that  even  if  non-zero  status  is  returned, zle may still be
              active as part of the completion system;  this  does  not  allow
              direct calls to ZLE widgets.

              Otherwise, which operation it performs depends on its options:

              -l [ -L | -a ]
                     List all existing user-defined widgets.  If the -L option
                     is used, list in the form of zle commands to  create  the
                     widgets.

                     When  combined  with  the -a option, all widget names are
                     listed, including the builtin ones. In this case  the  -L
                     option is ignored.

                     If  at least one string is given, nothing will be printed
                     but the return status will be zero  if  all  strings  are
                     names  of existing widgets (or of user-defined widgets if
                     the -a flag is not given) and non-zero if  at  least  one
                     string is not a name of an defined widget.

              -D widget ...
                     Delete the named widgets.

              -A old-widget new-widget
                     Make the new-widget name an alias for old-widget, so that
                     both names refer to the  same  widget.   The  names  have
                     equal  standing; if either is deleted, the other remains.
                     If there is already a widget with the new-widget name, it
                     is deleted.

              -N widget [ function ]
                     Create a user-defined widget.  If there is already a wid-
                     get with the specified name, it is overwritten.  When the
                     new  widget is invoked from within the editor, the speci-
                     fied shell function is called.  If no  function  name  is
                     specified,  it  defaults  to the same name as the widget.
                     For further information, see the section Widgets in  zsh-
                     zle(1).

              -C widget completion-widget function
                     Create a user-defined completion widget named widget. The
                     completion widget will behave like the  built-in  comple-
                     tion-widget  whose name is given as completion-widget. To
                     generate the completions,  the  shell  function  function
                     will  be  called.   For further information, see zshcomp-
                     wid(1).

              -R [ -c ] [ display-string ] [ string ... ]
                     Redisplay the command line; this is  to  be  called  from
                     within  a  user-defined widget to allow changes to become
                     visible.  If a display-string is  given  and  not  empty,
                     this  is  shown in the status line (immediately below the
                     line being edited).

                     If the optional strings are given they are  listed  below
                     the  prompt  in  the  same  way  as  completion lists are
                     printed. If no strings are given but  the  -c  option  is
                     used such a list is cleared.

                     Note  that this option is only useful for widgets that do
                     not exit immediately after using it because  the  strings
                     displayed  will  be  erased immediately after return from
                     the widget.

                     This command can safely be called  outside  user  defined
                     widgets; if zle is active, the display will be refreshed,
                     while if zle is not active, the command  has  no  effect.
                     In this case there will usually be no other arguments.

                     The status is zero if zle was active, else one.

              -M string
                     As with the -R option, the string will be displayed below
                     the command line; unlike the -R option, the  string  will
                     not  be  put  into  the  status  line but will instead be
                     printed normally below the prompt.  This means  that  the
                     string  will  still be displayed after the widget returns
                     (until it is overwritten by subsequent commands).

              -U string
                     This pushes the characters in the string onto  the  input
                     stack  of  ZLE.  After the widget currently executed fin-
                     ishes ZLE will behave as if the characters in the  string
                     were typed by the user.

                     As  ZLE  uses  a stack, if this option is used repeatedly
                     the last string pushed onto the stack will  be  processed
                     first.   However,  the  characters in each string will be
                     processed in the  order  in  which  they  appear  in  the
                     string.

              -K keymap
                     Selects  the  keymap named keymap.  An error message will
                     be displayed if there is no such keymap.

                     This keymap selection affects the interpretation of  fol-
                     lowing  keystrokes  within  this  invocation of ZLE.  Any
                     following invocation (e.g., the next command  line)  will
                     start as usual with the `main' keymap selected.

              -F [ -L ] [ fd [ handler ] ]
                     Only  available if your system supports one of the `poll'
                     or `select' system calls; most modern systems do.

                     Installs handler (the name of a shell function) to handle
                     input from file descriptor fd.  When zle is attempting to
                     read data, it will examine both the terminal and the list
                     of  handled fd's.  If data becomes available on a handled
                     fd, zle will call handler with the fd which is ready  for
                     reading  as  the  only argument.  If the handler produces
                     output to the terminal, it should call  `zle  -I'  before
                     doing  so (see below).  The handler should not attempt to
                     read from the terminal.  Note that zle makes  no  attempt
                     to  check  whether  this  fd  is  actually  readable when
                     installing the handler.  The user  must  make  their  own
                     arrangements for handling the file descriptor when zle is
                     not active.

                     Any number of handlers for any number  of  readable  file
                     descriptors  may  be installed.  Installing a handler for
                     an fd which is already handled causes the  existing  han-
                     dler to be replaced.

                     If no handler is given, but an fd is present, any handler
                     for that fd is removed.  If there is none, an error  mes-
                     sage is printed and status 1 is returned.

                     If  no arguments are given, or the -L option is supplied,
                     a list of handlers is printed in  a  form  which  can  be
                     stored for later execution.

                     An  fd  (but  not a handler) may optionally be given with
                     the -L option; in this case, the function will  list  the
                     handler if any, else silently return status 1.

                     Note  that this feature should be used with care.  Activ-
                     ity on one of the fd's which is not properly handled  can
                     cause the terminal to become unusable.

                     Here  is  a simple example of using this feature.  A con-
                     nection to a remote TCP port is created  using  the  ztcp
                     command; see the description of the zsh/net/tcp module in
                     zshmodules(1).  Then a handler is installed which  simply
                     prints  out  any  data  which arrives on this connection.
                     Note that `select' will indicate that the file descriptor
                     needs  handling if the remote side has closed the connec-
                     tion; we handle that by testing for a failed read.
                            if ztcp pwspc 2811; then
                              tcpfd=$REPLY
                              handler() {
                                zle -I
                                local line
                                if ! read -r line <&$1; then
                                  # select marks this fd if we reach EOF,
                                  # so handle this specially.
                                  print "[Read on fd $1 failed, removing.]" >&2
                                  zle -F $1
                                  return 1
                                fi
                                print -r - $line
                              }
                              zle -F $tcpfd handler
                            fi

              -I     Unusually, this option is most  useful  outside  ordinary
                     widget  functions, though it may be used within if normal
                     output to the terminal is required.  It  invalidates  the
                     current  zle display in preparation for output; typically
                     this will be from a trap function.  It has no  effect  if
                     zle  is  not active.  When a trap exits, the shell checks
                     to see if the display needs restoring, hence the  follow-
                     ing will print output in such a way as not to disturb the
                     line being edited:

                            TRAPUSR1() {
                                # Invalidate zle display
                              [[ -o zle ]] && zle -I
                                # Show output
                              print Hello
                            }

                     In general, the trap function may need  to  test  whether
                     zle  is  active before using this method (as shown in the
                     example), since  the  zsh/zle  module  may  not  even  be
                     loaded; if it is not, the command can be skipped.

                     It is possible to call `zle -I' several times before con-
                     trol is returned to the editor; the display will only  be
                     invalidated the first time to minimise disruption.

                     Note  that there are normally better ways of manipulating
                     the display from within zle widgets;  see,  for  example,
                     `zle -R' above.

                     The  returned status is zero if zle was invalidated, even
                     though this may have been by a previous call to `zle  -I'
                     or by a system notification.  To test if a zle widget may
                     be called at this point, execute zle  with  no  arguments
                     and examine the return status.

              widget [ -n num ] [ -Nw ] [ -K keymap ] args ...
                     Invoke  the specified widget.  This can only be done when
                     ZLE  is  active;  normally  this   will   be   within   a
                     user-defined widget.

                     With  the  options -n and -N, the current numerical argu-
                     ment will be saved and then restored after  the  call  to
                     widget;  `-n num' sets the numerical argument temporarily
                     to num, while `-N' sets it to the  default,  i.e.  as  if
                     there were none.

                     With  the  option  -K, keymap will be used as the current
                     keymap during the execution of the widget.  The  previous
                     keymap will be restored when the widget exits.

                     Normally,  calling  a widget in this way does not set the
                     special parameter WIDGET and related parameters, so  that
                     the environment appears as if the top-level widget called
                     by the user were still active.  With the option -w,  WID-
                     GET  and related parameters are set to reflect the widget
                     being executed by the zle call.

                     Any further arguments will be passed to the  widget.   If
                     it  is  a  shell function, these are passed down as posi-
                     tional parameters; for builtin widgets it is  up  to  the
                     widget  in  question  what  it does with them.  Currently
                     arguments are only handled by the incremental-search com-
                     mands,  the  history-search-forward and -backward and the
                     corresponding functions prefixed by vi-, and  by  univer-
                     sal-argument.   No  error  is flagged if the command does
                     not use the arguments, or only uses some of them.

                     The return status reflects the success or failure of  the
                     operation  carried  out  by  the  widget,  or  if it is a
                     user-defined widget the return status of the shell  func-
                     tion.

                     A  non-zero  return  status causes the shell to beep when
                     the widget exits, unless the BEEP options  was  unset  or
                     the  widget  was  called  via the zle command.  Thus if a
                     user defined widget requires an immediate beep, it should
                     call the beep widget directly.


WIDGETS

       All  actions  in the editor are performed by `widgets'.  A widget's job
       is simply to perform some small action.   The  ZLE  commands  that  key
       sequences  in keymaps are bound to are in fact widgets.  Widgets can be
       user-defined or built in.

       The standard widgets built in to ZLE are  listed  in  Standard  Widgets
       below.   Other  built-in  widgets  can be defined by other modules (see
       zshmodules(1)).  Each built-in widget has two names: its normal canoni-
       cal  name,  and  the same name preceded by a `.'.  The `.' name is spe-
       cial: it can't be rebound to a different widget.  This makes the widget
       available even when its usual name has been redefined.

       User-defined  widgets  are  defined  using `zle -N', and implemented as
       shell functions.  When the widget is executed, the corresponding  shell
       function  is  executed, and can perform editing (or other) actions.  It
       is recommended that user-defined widgets should not have names starting
       with `.'.


USER\-DEFINED WIDGETS

       User-defined widgets, being implemented as shell functions, can execute
       any normal shell command.  They can also  run  other  widgets  (whether
       built-in  or user-defined) using the zle builtin command.  The standard
       input of the function is closed to prevent external commands from unin-
       tentionally  blocking  ZLE by reading from the terminal, but read -k or
       read -q can be used to read characters.  Finally, they can examine  and
       edit  the  ZLE  buffer  being edited by reading and setting the special
       parameters described below.

       These special parameters are always available in widget functions,  but
       are not in any way special outside ZLE.  If they have some normal value
       outside ZLE, that value is temporarily inaccessible,  but  will  return
       when  the widget function exits.  These special parameters in fact have
       local scope, like parameters created in a function using local.

       Inside completion widgets and traps called while ZLE is  active,  these
       parameters are available read-only.

       BUFFER (scalar)
              The  entire  contents  of the edit buffer.  If it is written to,
              the cursor remains at the same offset, unless that would put  it
              outside the buffer.

       BUFFERLINES (integer)
              The  number of screen lines needed for the edit buffer currently
              displayed on screen (i.e. without any changes to  the  preceding
              parameters done after the last redisplay); read-only.

       CONTEXT (scalar)
              The  context  in which zle was called to read a line; read-only.
              One of the values:
       start  The start of a command line (at prompt PS1).

       cont   A continuation to a command line (at prompt PS2).

       select In a select loop.

       vared  Editing a variable in vared.

       CURSOR (integer)
              The offset of the cursor, within the edit buffer.   This  is  in
              the  range  0  to  $#BUFFER,  and  is  by  definition  equal  to
              $#LBUFFER.  Attempts to move the cursor outside the buffer  will
              result  in  the cursor being moved to the appropriate end of the
              buffer.

       CUTBUFFER (scalar)
              The last item to be cut using one of the `kill-'  commands;  the
              string  which  the  next  yank  would insert in the line.  Later
              entries in the kill ring are in the array killring.

       HISTNO (integer)
              The current history number.  Setting this has the same effect as
              moving  up  or  down in the history to the corresponding history
              line.  An attempt to set it is ignored if the line is not stored
              in  the  history.   Note  this  is not the same as the parameter
              HISTCMD, which always gives the number of the history line being
              added  to  the  main shell's history.  HISTNO refers to the line
              being retrieved within zle.

       KEYMAP (scalar)
              The name of the currently selected keymap; read-only.

       KEYS (scalar)
              The keys typed to invoke  this  widget,  as  a  literal  string;
              read-only.

       killring (array)
              The  array  of  previously  killed items, with the most recently
              killed first.  This gives the items that would be retrieved by a
              yank-pop  in  the  same  order.   Note,  however,  that the most
              recently killed item is in $CUTBUFFER; $killring shows the array
              of previous entries.

              The  default size for the kill ring is eight, however the length
              may be changed by normal array operations.  Any empty string  in
              the kill ring is ignored by the yank-pop command, hence the size
              of the array effectively sets the maximum  length  of  the  kill
              ring,  while  the  number  of non-zero strings gives the current
              length, both as seen by the user at the command line.

       LASTSEARCH (scalar)
              The  last  search  string  used  by  an  interactive  search   ;
              read-only.

       LASTWIDGET (scalar)
              The name of the last widget that was executed; read-only.

       LBUFFER (scalar)
              The part of the buffer that lies to the left of the cursor posi-
              tion.  If it is assigned to, only that part  of  the  buffer  is
              replaced,  and  the  cursor remains between the new $LBUFFER and
              the old $RBUFFER.

       MARK (integer)
              Like CURSOR, but for the mark.

       NUMERIC (integer)
              The numeric argument. If no numeric  argument  was  given,  this
              parameter  is  unset. When this is set inside a widget function,
              builtin widgets called with the zle builtin command will use the
              value assigned. If it is unset inside a widget function, builtin
              widgets called behave as if no numeric argument was given.

       PENDING (integer)
              The number of bytes pending for input, i.e. the number of  bytes
              which  have  already  been typed and can immediately be read. On
              systems where the shell is not able  to  get  this  information,
              this parameter will always have a value of zero.  Read-only.

       PREBUFFER (scalar)
              In  a  multi-line  input at the secondary prompt, this read-only
              parameter contains the contents of the lines before the one  the
              cursor is currently in.

       PREDISPLAY (scalar)
              Text  to  be  displayed  before  the  start of the editable text
              buffer.  This does not have to be a complete line; to display  a
              complete  line,  a  newline  must be appended explicitly.    The
              text is reset on each new invocation (but not recursive  invoca-
              tion) of zle.

       POSTDISPLAY (scalar)
              Text  to be displayed after the end of the editable text buffer.
              This does not have to be a complete line; to display a  complete
              line, a newline must be prepended explicitly.  The text is reset
              on each new invocation (but not recursive invocation) of zle.

       RBUFFER (scalar)
              The part of the buffer that lies to  the  right  of  the  cursor
              position.  If it is assigned to, only that part of the buffer is
              replaced, and the cursor remains between the  old  $LBUFFER  and
              the new $RBUFFER.

       WIDGET (scalar)
              The name of the widget currently being executed; read-only.

       WIDGETFUNC (scalar)
              The  name of the shell function that implements a widget defined
              with either zle -N or zle -C.  In the former case, this  is  the
              second  argument  to the zle -N command that defined the widget,
              or the first argument if there was no second argument.   In  the
              latter case this is the the third argument to the zle -C command
              that defined the widget.  Read-only.

       WIDGETSTYLE (scalar)
              Describes the implementation behind the completion  widget  cur-
              rently  being executed; the second argument that followed zle -C
              when the widget was defined.  This is the name of a builtin com-
              pletion  widget.  For widgets defined with zle -N this is set to
              the empty string.  Read-only.

   Special Widget
       There are a few user-defined widgets which are special  to  the  shell.
       If they do not exist, no special action is taken.  The environment pro-
       vided is identical to that for any other editing widget.

       zle-line-init
              Executed every time the line editor is started  to  read  a  new
              line  of input.  The following example puts the line editor into
              vi command mode when it starts up.

                     zle-line-init() { zle -K vicmd; }
                     zle -N zle-line-init

              (The command inside the function sets the keymap directly; it is
              equivalent to zle vi-cmd-mode.)

       zle-keymap-select
              Executed every time the keymap changes, i.e. the special parame-
              ter KEYMAP is set to a different value, while the line editor is
              active.   Initialising  the  keymap  when the line editor starts
              does not cause the widget to be called.

              The value $KEYMAP within the function reflects the  new  keymap.
              The old keymap is passed as the sole argument.

              This can been used for detecting switches between the vi command
              (vicmd) and insert (usually main) keymaps.


STANDARD WIDGETS

       The following is a list of all the standard widgets, and their  default
       bindings  in  emacs  mode,  vi  command  mode  and  vi insert mode (the
       `emacs', `vicmd' and `viins' keymaps, respectively).

       Note that cursor keys are bound to movement keys in all three  keymaps;
       the  shell assumes that the cursor keys send the key sequences reported
       by the  terminal-handling  library  (termcap  or  terminfo).   The  key
       sequences  shown  in  the  list are those based on the VT100, common on
       many modern terminals, but in fact these are not necessarily bound.  In
       the  case  of  the  viins  keymap,  the initial escape character of the
       sequences serves also to return to the vicmd keymap: whether this  hap-
       pens is determined by the KEYTIMEOUT parameter, see zshparam(1).

   Movement
       vi-backward-blank-word (unbound) (B) (unbound)
              Move  backward  one word, where a word is defined as a series of
              non-blank characters.

       backward-char (^B ESC-[D) (unbound) (unbound)
              Move backward one character.

       vi-backward-char (unbound) (^H h ^?) (ESC-[D)
              Move backward one character, without changing lines.

       backward-word (ESC-B ESC-b) (unbound) (unbound)
              Move to the beginning of the previous word.

       emacs-backward-word
              Move to the beginning of the previous word.

       vi-backward-word (unbound) (b) (unbound)
              Move to the beginning of the previous word, vi-style.

       beginning-of-line (^A) (unbound) (unbound)
              Move to the beginning of the line.  If already at the  beginning
              of the line, move to the beginning of the previous line, if any.

       vi-beginning-of-line
              Move to the beginning of the line, without changing lines.

       end-of-line (^E) (unbound) (unbound)
              Move to the end of the line.  If already at the end of the line,
              move to the end of the next line, if any.

       vi-end-of-line (unbound) ($) (unbound)
              Move  to  the  end of the line.  If an argument is given to this
              command, the cursor will be moved to the end of the line  (argu-
              ment - 1) lines down.

       vi-forward-blank-word (unbound) (W) (unbound)
              Move  forward  one  word, where a word is defined as a series of
              non-blank characters.

       vi-forward-blank-word-end (unbound) (E) (unbound)
              Move to the end of the current word, or, if at the  end  of  the
              current  word,  to  the  end  of  the next word, where a word is
              defined as a series of non-blank characters.

       forward-char (^F ESC-[C) (unbound) (unbound)
              Move forward one character.

       vi-forward-char (unbound) (space l) (ESC-[C)
              Move forward one character.

       vi-find-next-char (^X^F) (f) (unbound)
              Read a character from the keyboard, and move to the next  occur-
              rence of it in the line.

       vi-find-next-char-skip (unbound) (t) (unbound)
              Read  a  character  from  the keyboard, and move to the position
              just before the next occurrence of it in the line.

       vi-find-prev-char (unbound) (F) (unbound)
              Read a character from the keyboard, and  move  to  the  previous
              occurrence of it in the line.

       vi-find-prev-char-skip (unbound) (T) (unbound)
              Read  a  character  from  the keyboard, and move to the position
              just after the previous occurrence of it in the line.

       vi-first-non-blank (unbound) (^) (unbound)
              Move to the first non-blank character in the line.

       vi-forward-word (unbound) (w) (unbound)
              Move forward one word, vi-style.

       forward-word (ESC-F ESC-f) (unbound) (unbound)
              Move to the beginning of the next word.  The editor's idea of  a
              word is specified with the WORDCHARS parameter.

       emacs-forward-word
              Move to the end of the next word.

       vi-forward-word-end (unbound) (e) (unbound)
              Move to the end of the next word.

       vi-goto-column (ESC-|) (|) (unbound)
              Move to the column specified by the numeric argument.

       vi-goto-mark (unbound) (`) (unbound)
              Move to the specified mark.

       vi-goto-mark-line (unbound) (') (unbound)
              Move to beginning of the line containing the specified mark.

       vi-repeat-find (unbound) (;) (unbound)
              Repeat the last vi-find command.

       vi-rev-repeat-find (unbound) (,) (unbound)
              Repeat the last vi-find command in the opposite direction.

   History Control
       beginning-of-buffer-or-history (ESC-<) (unbound) (unbound)
              Move  to  the beginning of the buffer, or if already there, move
              to the first event in the history list.

       beginning-of-line-hist
              Move to the beginning of the line.  If already at the  beginning
              of the buffer, move to the previous history line.

       beginning-of-history
              Move to the first event in the history list.

       down-line-or-history (^N ESC-[B) (j) (ESC-[B)
              Move  down  a  line  in  the buffer, or if already at the bottom
              line, move to the next event in the history list.

       vi-down-line-or-history (unbound) (+) (unbound)
              Move down a line in the buffer, or  if  already  at  the  bottom
              line,  move to the next event in the history list.  Then move to
              the first non-blank character on the line.

       down-line-or-search
              Move down a line in the buffer, or  if  already  at  the  bottom
              line,  search  forward  in the history for a line beginning with
              the first word in the buffer.

              If called from a function by the zle command with arguments, the
              first  argument  is  taken  as  the  string for which to search,
              rather than the first word in the buffer.

       down-history (unbound) (^N) (unbound)
              Move to the next event in the history list.

       history-beginning-search-backward
              Search backward in the history for a  line  beginning  with  the
              current  line  up  to the cursor.  This leaves the cursor in its
              original position.

       end-of-buffer-or-history (ESC->) (unbound) (unbound)
              Move to the end of the buffer, or if already there, move to  the
              last event in the history list.

       end-of-line-hist
              Move  to  the  end  of  the  line.  If already at the end of the
              buffer, move to the next history line.

       end-of-history
              Move to the last event in the history list.

       vi-fetch-history (unbound) (G) (unbound)
              Fetch the history line specified by the numeric argument.   This
              defaults  to  the  current history line (i.e. the one that isn't
              history yet).

       history-incremental-search-backward (^R ^Xr) (unbound) (unbound)
              Search backward  incrementally  for  a  specified  string.   The
              search  is  case-insensitive  if the search string does not have
              uppercase letters and no numeric argument was given.  The string
              may  begin with `^' to anchor the search to the beginning of the
              line.

              A restricted set  of  editing  functions  is  available  in  the
              mini-buffer.   An  interrupt signal, as defined by the stty set-
              ting, will stop the search and go back to the original line.  An
              undefined key will have the same effect. The supported functions
              are:       backward-delete-char,        vi-backward-delete-char,
              clear-screen,    redisplay,   quoted-insert,   vi-quoted-insert,
              accept-and-hold, accept-and-infer-next-history, accept-line  and
              accept-line-and-down-history.

              magic-space  just  inserts a space.  vi-cmd-mode toggles between
              the `main' and `vicmd' keymaps; the `main' keymap (insert  mode)
              will be selected initially.  history-incremental-search-backward
              will get the next occurrence of the contents of the mini-buffer.
              history-incremental-search-forward  inverts  the  sense  of  the
              search.  vi-repeat-search and vi-rev-repeat-search are similarly
              supported.   The  direction  of  the  search is indicated in the
              mini-buffer.

              Any multi-character string that is not bound to one of the above
              functions  will  beep and interrupt the search, leaving the last
              found line in the buffer. Any single character that is not bound
              to   one   of   the   above   functions,   or   self-insert   or
              self-insert-unmeta, will have the same effect but  the  function
              will be executed.

              When  called  from  a  widget  function  by the zle command, the
              incremental search commands can take a  string  argument.   This
              will  be  treated  as  a string of keys, as for arguments to the
              bindkey command, and used as initial input for the command.  Any
              characters  in  the  string  which are unused by the incremental
              search will be silently ignored.  For example,

                     zle history-incremental-search-backward forceps

              will search backwards for forceps, leaving the  minibuffer  con-
              taining the string `forceps'.

       history-incremental-search-forward (^S ^Xs) (unbound) (unbound)
              Search forward incrementally for a specified string.  The search
              is case-insensitive if the search string does not have uppercase
              letters and no numeric argument was given.  The string may begin
              with `^' to anchor the search to the beginning of the line.  The
              functions  available in the mini-buffer are the same as for his-
              tory-incremental-search-backward.

       history-search-backward (ESC-P ESC-p) (unbound) (unbound)
              Search backward in the history for a  line  beginning  with  the
              first word in the buffer.

              If called from a function by the zle command with arguments, the
              first argument is taken as  the  string  for  which  to  search,
              rather than the first word in the buffer.

       vi-history-search-backward (unbound) (/) (unbound)
              Search  backward  in  the  history  for a specified string.  The
              string may begin with `^' to anchor the search to the  beginning
              of the line.

              A  restricted  set  of  editing  functions  is  available in the
              mini-buffer.  An interrupt signal, as defined by the  stty  set-
              ting,   will  stop  the  search.  The functions available in the
              mini-buffer  are:  accept-line,  backward-delete-char,  vi-back-
              ward-delete-char,   backward-kill-word,   vi-backward-kill-word,
              clear-screen, redisplay, quoted-insert and vi-quoted-insert.

              vi-cmd-mode is treated the same as accept-line, and  magic-space
              is treated as a space.  Any other character that is not bound to
              self-insert or self-insert-unmeta will beep and be  ignored.  If
              the function is called from vi command mode, the bindings of the
              current insert mode will be used.

              If called from a function by the zle command with arguments, the
              first  argument  is  taken  as  the  string for which to search,
              rather than the first word in the buffer.

       history-search-forward (ESC-N ESC-n) (unbound) (unbound)
              Search forward in the history for  a  line  beginning  with  the
              first word in the buffer.

              If called from a function by the zle command with arguments, the
              first argument is taken as  the  string  for  which  to  search,
              rather than the first word in the buffer.

       vi-history-search-forward (unbound) (?) (unbound)
              Search  forward  in  the  history  for  a specified string.  The
              string may begin with `^' to anchor the search to the  beginning
              of  the line. The functions available in the mini-buffer are the
              same as for vi-history-search-backward.   Argument  handling  is
              also the same as for that command.

       infer-next-history (^X^N) (unbound) (unbound)
              Search  in  the history list for a line matching the current one
              and fetch the event following it.

       insert-last-word (ESC-_ ESC-.) (unbound) (unbound)
              Insert the last word from the previous history event at the cur-
              sor  position.   If a positive numeric argument is given, insert
              that word from the end of the previous history  event.   If  the
              argument  is  zero  or  negative  insert that word from the left
              (zero inserts the previous command word).  Repeating  this  com-
              mand replaces the word just inserted with the last word from the
              history event prior to the one just used; numeric arguments  can
              be used in the same way to pick a word from that event.

              When  called  from  a shell function invoked from a user-defined
              widget, the command can take one to three arguments.  The  first
              argument  specifies a history offset which applies to successive
              calls to this widget: if is -1, the default behaviour  is  used,
              while  if  it  is 1, successive calls will move forwards through
              the history.  The value 0 can be used to indicate that the  his-
              tory line examined by the previous execution of the command will
              be reexamined.  Note that negative numbers  should  be  preceded
              with a `--' argument to avoid confusing them with options.

              If two arguments are given, the second specifies the word on the
              command line in normal array index notation (as a  more  natural
              alternative to the prefix argument).  Hence 1 is the first word,
              and -1 (the default) is the last word.

              If a third argument is given, its value is ignored,  but  it  is
              used  to signify that the history offset is relative to the cur-
              rent history line, rather than the one remembered after the pre-
              vious invocations of insert-last-word.

              For example, the default behaviour of the command corresponds to

                     zle insert-last-word -- -1 -1

              while the command

                     zle insert-last-word -- -1 1 -

              always copies the first word of the line in the history  immedi-
              ately  before  the  line being edited.  This has the side effect
              that later invocations of the widget will be  relative  to  that
              line.

       vi-repeat-search (unbound) (n) (unbound)
              Repeat the last vi history search.

       vi-rev-repeat-search (unbound) (N) (unbound)
              Repeat the last vi history search, but in reverse.

       up-line-or-history (^P ESC-[A) (k) (ESC-[A)
              Move  up  a  line  in the buffer, or if already at the top line,
              move to the previous event in the history list.

       vi-up-line-or-history (unbound) (-) (unbound)
              Move up a line in the buffer, or if already  at  the  top  line,
              move  to  the  previous event in the history list.  Then move to
              the first non-blank character on the line.

       up-line-or-search
              Move up a line in the buffer, or if already  at  the  top  line,
              search  backward  in  the  history for a line beginning with the
              first word in the buffer.

              If called from a function by the zle command with arguments, the
              first  argument  is  taken  as  the  string for which to search,
              rather than the first word in the buffer.

       up-history (unbound) (^P) (unbound)
              Move to the previous event in the history list.

       history-beginning-search-forward
              Search forward in the history for a line beginning with the cur-
              rent line up to the cursor.  This leaves the cursor in its orig-
              inal position.

   Modifying Text
       vi-add-eol (unbound) (A) (unbound)
              Move to the end of the line and enter insert mode.

       vi-add-next (unbound) (a) (unbound)
              Enter insert mode after the  current  cursor  position,  without
              changing lines.

       backward-delete-char (^H ^?) (unbound) (unbound)
              Delete the character behind the cursor.

       vi-backward-delete-char (unbound) (X) (^H)
              Delete  the character behind the cursor, without changing lines.
              If in insert mode, this won't delete past the point where insert
              mode was last entered.

       backward-delete-word
              Delete the word behind the cursor.

       backward-kill-line
              Kill from the beginning of the line to the cursor position.

       backward-kill-word (^W ESC-^H ESC-^?) (unbound) (unbound)
              Kill the word behind the cursor.

       vi-backward-kill-word (unbound) (unbound) (^W)
              Kill  the  word  behind the cursor, without going past the point
              where insert mode was last entered.

       capitalize-word (ESC-C ESC-c) (unbound) (unbound)
              Capitalize the current word and move past it.

       vi-change (unbound) (c) (unbound)
              Read a movement command from the keyboard,  and  kill  from  the
              cursor  position  to  the  endpoint of the movement.  Then enter
              insert mode.  If the command is vi-change,  change  the  current
              line.

       vi-change-eol (unbound) (C) (unbound)
              Kill to the end of the line and enter insert mode.

       vi-change-whole-line (unbound) (S) (unbound)
              Kill the current line and enter insert mode.

       copy-region-as-kill (ESC-W ESC-w) (unbound) (unbound)
              Copy the area from the cursor to the mark to the kill buffer.

       copy-prev-word (ESC-^_) (unbound) (unbound)
              Duplicate the word to the left of the cursor.

       copy-prev-shell-word
              Like  copy-prev-word, but the word is found by using shell pars-
              ing, whereas copy-prev-word looks for blanks. This makes a  dif-
              ference when the word is quoted and contains spaces.

       vi-delete (unbound) (d) (unbound)
              Read  a  movement  command  from the keyboard, and kill from the
              cursor position to the endpoint of the movement.  If the command
              is vi-delete, kill the current line.

       delete-char
              Delete the character under the cursor.

       vi-delete-char (unbound) (x) (unbound)
              Delete  the  character  under the cursor, without going past the
              end of the line.

       delete-word
              Delete the current word.

       down-case-word (ESC-L ESC-l) (unbound) (unbound)
              Convert the current word to all lowercase and move past it.

       kill-word (ESC-D ESC-d) (unbound) (unbound)
              Kill the current word.

       gosmacs-transpose-chars
              Exchange the two characters behind the cursor.

       vi-indent (unbound) (>) (unbound)
              Indent a number of lines.

       vi-insert (unbound) (i) (unbound)
              Enter insert mode.

       vi-insert-bol (unbound) (I) (unbound)
              Move to the first non-blank character  on  the  line  and  enter
              insert mode.

       vi-join (^X^J) (J) (unbound)
              Join the current line with the next one.

       kill-line (^K) (unbound) (unbound)
              Kill  from the cursor to the end of the line.  If already on the
              end of the line, kill the newline character.

       vi-kill-line (unbound) (unbound) (^U)
              Kill from the cursor back  to  wherever  insert  mode  was  last
              entered.

       vi-kill-eol (unbound) (D) (unbound)
              Kill from the cursor to the end of the line.

       kill-region
              Kill from the cursor to the mark.

       kill-buffer (^X^K) (unbound) (unbound)
              Kill the entire buffer.

       kill-whole-line (^U) (unbound) (unbound)
              Kill the current line.

       vi-match-bracket (^X^B) (%) (unbound)
              Move to the bracket character (one of {}, () or []) that matches
              the one under the cursor.  If the cursor is  not  on  a  bracket
              character,  move  forward without going past the end of the line
              to find one, and then go to the matching bracket.

       vi-open-line-above (unbound) (O) (unbound)
              Open a line above the cursor and enter insert mode.

       vi-open-line-below (unbound) (o) (unbound)
              Open a line below the cursor and enter insert mode.

       vi-oper-swap-case
              Read a movement command from the keyboard, and swap the case  of
              all  characters  from the cursor position to the endpoint of the
              movement.  If the movement command  is  vi-oper-swap-case,  swap
              the case of all characters on the current line.

       overwrite-mode (^X^O) (unbound) (unbound)
              Toggle between overwrite mode and insert mode.

       vi-put-before (unbound) (P) (unbound)
              Insert  the  contents  of the kill buffer before the cursor.  If
              the kill buffer contains a sequence  of  lines  (as  opposed  to
              characters), paste it above the current line.

       vi-put-after (unbound) (p) (unbound)
              Insert the contents of the kill buffer after the cursor.  If the
              kill buffer contains a sequence of lines (as opposed to  charac-
              ters), paste it below the current line.

       quoted-insert (^V) (unbound) (unbound)
              Insert  the  next character typed into the buffer literally.  An
              interrupt character will not be inserted.

       vi-quoted-insert (unbound) (unbound) (^Q ^V)
              Display a `^' at the cursor position, and insert the next  char-
              acter  typed  into the buffer literally.  An interrupt character
              will not be inserted.

       quote-line (ESC-') (unbound) (unbound)
              Quote the current line; that is, put  a  `''  character  at  the
              beginning and the end, and convert all `'' characters to `'\'''.

       quote-region (ESC-") (unbound) (unbound)
              Quote the region from the cursor to the mark.

       vi-replace (unbound) (R) (unbound)
              Enter overwrite mode.

       vi-repeat-change (unbound) (.) (unbound)
              Repeat the last vi mode text modification.  If a count was  used
              with the modification, it is remembered.  If a count is given to
              this command, it overrides the remembered count, and  is  remem-
              bered  for future uses of this command.  The cut buffer specifi-
              cation is similarly remembered.

       vi-replace-chars (unbound) (r) (unbound)
              Replace the character under the cursor  with  a  character  read
              from the keyboard.

       self-insert  (printable characters) (unbound) (printable characters and
       some control characters)
              Insert a character into the buffer at the cursor position.

       self-insert-unmeta (ESC-^I ESC-^J ESC-^M) (unbound) (unbound)
              Insert  a character into the buffer after stripping the meta bit
              and converting ^M to ^J.

       vi-substitute (unbound) (s) (unbound)
              Substitute the next character(s).

       vi-swap-case (unbound) (~) (unbound)
              Swap the case of the character under the cursor  and  move  past
              it.

       transpose-chars (^T) (unbound) (unbound)
              Exchange  the two characters to the left of the cursor if at end
              of line, else exchange the character under the cursor  with  the
              character to the left.

       transpose-words (ESC-T ESC-t) (unbound) (unbound)
              Exchange the current word with the one before it.

       vi-unindent (unbound) (<) (unbound)
              Unindent a number of lines.

       up-case-word (ESC-U ESC-u) (unbound) (unbound)
              Convert the current word to all caps and move past it.

       yank (^Y) (unbound) (unbound)
              Insert the contents of the kill buffer at the cursor position.

       yank-pop (ESC-y) (unbound) (unbound)
              Remove  the text just yanked, rotate the kill-ring, and yank the
              new top.  Only works following yank or yank-pop.

       vi-yank (unbound) (y) (unbound)
              Read a movement command from the keyboard, and copy  the  region
              from  the  cursor  position to the endpoint of the movement into
              the kill buffer.  If the command is vi-yank,  copy  the  current
              line.

       vi-yank-whole-line (unbound) (Y) (unbound)
              Copy the current line into the kill buffer.

       vi-yank-eol
              Copy  the region from the cursor position to the end of the line
              into the kill buffer.  Arguably, this is what Y should do in vi,
              but it isn't what it actually does.

   Arguments
       digit-argument (ESC-0..ESC-9) (1-9) (unbound)
              Start  a  new  numeric argument, or add to the current one.  See
              also vi-digit-or-beginning-of-line.  This only works if bound to
              a key sequence ending in a decimal digit.

              Inside  a  widget  function,  a call to this function treats the
              last key of the key sequence which  called  the  widget  as  the
              digit.

       neg-argument (ESC--) (unbound) (unbound)
              Changes the sign of the following argument.

       universal-argument
              Multiply  the argument of the next command by 4.  Alternatively,
              if this command is followed by an  integer  (positive  or  nega-
              tive), use that as the argument for the next command.  Thus dig-
              its cannot be repeated using this command.  For example, if this
              command occurs twice, followed immediately by forward-char, move
              forward sixteen spaces; if instead it is followed  by  -2,  then
              forward-char, move backward two spaces.

              Inside  a widget function, if passed an argument, i.e. `zle uni-
              versal-argument num', the numerical argument will be set to num;
              this is equivalent to `NUMERIC=num'.

       argument-base
              Use  the existing numeric argument as a numeric base, which must
              be  in  the  range  2  to  36  inclusive.   Subsequent  use   of
              digit-argument and universal-argument will input a new prefix in
              the given base.  The usual hexadecimal convention is  used:  the
              letter  a or A corresponds to 10, and so on.  Arguments in bases
              requiring digits from 10 upwards  are  more  conveniently  input
              with  universal-argument, since ESC-a etc. are not usually bound
              to digit-argument.

              The function can be  used  with  a  command  argument  inside  a
              user-defined widget.  The following code sets the base to 16 and
              lets the user input a hexadecimal argument until a  key  out  of
              the digit range is typed:

                     zle argument-base 16
                     zle universal-argument

   Completion
       accept-and-menu-complete
              In  a  menu  completion,  insert the current completion into the
              buffer, and advance to the next possible completion.

       complete-word
              Attempt completion on the current word.

       delete-char-or-list (^D) (unbound) (unbound)
              Delete the character under the cursor.  If the cursor is at  the
              end of the line, list possible completions for the current word.

       expand-cmd-path
              Expand the current command to its full pathname.

       expand-or-complete (TAB) (unbound) (TAB)
              Attempt shell expansion on the current  word.   If  that  fails,
              attempt completion.

       expand-or-complete-prefix
              Attempt shell expansion on the current word up to cursor.

       expand-history (ESC-space ESC-!) (unbound) (unbound)
              Perform history expansion on the edit buffer.

       expand-word (^X*) (unbound) (unbound)
              Attempt shell expansion on the current word.

       list-choices (ESC-^D) (^D =) (^D)
              List possible completions for the current word.

       list-expand (^Xg ^XG) (^G) (^G)
              List the expansion of the current word.

       magic-space
              Perform  history  expansion  and insert a space into the buffer.
              This is intended to be bound to space.

       menu-complete
              Like complete-word, except that menu completion  is  used.   See
              the MENU_COMPLETE option.

       menu-expand-or-complete
              Like expand-or-complete, except that menu completion is used.

       reverse-menu-complete
              Perform  menu  completion,  like menu-complete, except that if a
              menu completion is already in progress,  move  to  the  previous
              completion rather than the next.

       end-of-list
              When  a  previous  completion displayed a list below the prompt,
              this widget can be used to move the prompt below the list.

   Miscellaneous
       accept-and-hold (ESC-A ESC-a) (unbound) (unbound)
              Push the contents of the buffer on the buffer stack and  execute
              it.

       accept-and-infer-next-history
              Execute  the  contents  of  the buffer.  Then search the history
              list for a line matching the current one and push the event fol-
              lowing onto the buffer stack.

       accept-line (^J ^M) (^J ^M) (^J ^M)
              Finish  editing  the buffer.  Normally this causes the buffer to
              be executed as a shell command.

       accept-line-and-down-history (^O) (unbound) (unbound)
              Execute the current line, and push the next history event on the
              the buffer stack.

       auto-suffix-remove
              If  the  previous  action added a suffix (space, slash, etc.) to
              the word on the command line, remove it.  Otherwise do  nothing.
              Removing  the  suffix  ends  any  active menu completion or menu
              selection.

              This widget is intended to be called from  user-defined  widgets
              to enforce a desired suffix-removal behavior.

       auto-suffix-retain
              If  the  previous  action added a suffix (space, slash, etc.) to
              the word on the command line, force it to be preserved.   Other-
              wise do nothing.  Retaining the suffix ends any active menu com-
              pletion or menu selection.

              This widget is intended to be called from  user-defined  widgets
              to enforce a desired suffix-preservation behavior.

       beep   Beep, unless the BEEP option is unset.

       vi-cmd-mode (^X^V) (unbound) (^[)
              Enter  command  mode;  that is, select the `vicmd' keymap.  Yes,
              this is bound by default in emacs mode.

       vi-caps-lock-panic
              Hang until any lowercase key is pressed.  This is for  vi  users
              without the mental capacity to keep track of their caps lock key
              (like the author).

       clear-screen (^L ESC-^L) (^L) (^L)
              Clear the screen and redraw the prompt.

       describe-key-briefly
              Reads a key sequence, then prints the  function  bound  to  that
              sequence.

       exchange-point-and-mark (^X^X) (unbound) (unbound)
              Exchange the cursor position with the position of the mark.

       execute-named-cmd (ESC-x) (unbound) (unbound)
              Read the name of an editor command and execute it.  A restricted
              set of editing functions is available in  the  mini-buffer.   An
              interrupt signal, as defined by the stty setting, will abort the
              function.  The  allowed  functions  are:   backward-delete-char,
              vi-backward-delete-char, clear-screen, redisplay, quoted-insert,
              vi-quoted-insert,   backward-kill-word,   vi-backward-kill-word,
              kill-whole-line, vi-kill-line, backward-kill-line, list-choices,
              delete-char-or-list, complete-word, accept-line,  expand-or-com-
              plete and expand-or-complete-prefix.

              kill-region  kills the last word, and vi-cmd-mode is treated the
              same as accept-line.  The space and tab characters, if not bound
              to  one of these functions, will complete the name and then list
              the possibilities if the AUTO_LIST option  is  set.   Any  other
              character that is not bound to self-insert or self-insert-unmeta
              will beep and be ignored.  The bindings of  the  current  insert
              mode will be used.

              Currently this command may not be redefined or called by name.

       execute-last-named-cmd (ESC-z) (unbound) (unbound)
              Redo the last function executed with execute-named-cmd.

              Currently this command may not be redefined or called by name.

       get-line (ESC-G ESC-g) (unbound) (unbound)
              Pop  the top line off the buffer stack and insert it at the cur-
              sor position.

       pound-insert (unbound) (#) (unbound)
              If there is no # character at the beginning of the  buffer,  add
              one  to the beginning of each line.  If there is one, remove a #
              from each line that has one.  In either case, accept the current
              line.   The  INTERACTIVE_COMMENTS option must be set for this to
              have any usefulness.

       vi-pound-insert
              If there is no # character at the beginning of the current line,
              add  one.  If there is one, remove it.  The INTERACTIVE_COMMENTS
              option must be set for this to have any usefulness.

       push-input
              Push the entire current  multiline  construct  onto  the  buffer
              stack  and return to the top-level (PS1) prompt.  If the current
              parser construct is only a single line,  this  is  exactly  like
              push-line.   Next  time  the  editor starts up or is popped with
              get-line, the construct will be popped off the top of the buffer
              stack and loaded into the editing buffer.

       push-line (^Q ESC-Q ESC-q) (unbound) (unbound)
              Push  the  current  buffer  onto  the buffer stack and clear the
              buffer.  Next time the editor starts  up,  the  buffer  will  be
              popped off the top of the buffer stack and loaded into the edit-
              ing buffer.

       push-line-or-edit
              At the top-level (PS1) prompt, equivalent to  push-line.   At  a
              secondary  (PS2)  prompt, move the entire current multiline con-
              struct into the editor buffer.   The  latter  is  equivalent  to
              push-input followed by get-line.

       read-command
              Only  useful  from  a  user-defined widget.  A keystroke is read
              just as in normal operation, but instead of  the  command  being
              executed  the  name  of  the  command  that would be executed is
              stored in the shell parameter REPLY.  This can be  used  as  the
              argument  of  a  future zle command.  If the key sequence is not
              bound, status 1 is returned; typically, however, REPLY is set to
              undefined-key to indicate a useless key sequence.

       recursive-edit
              Only  useful  from  a user-defined widget.  At this point in the
              function, the editor regains control until one of  the  standard
              widgets  which  would  normally  cause zle to exit (typically an
              accept-line caused by  hitting  the  return  key)  is  executed.
              Instead, control returns to the user-defined widget.  The status
              returned is non-zero if the return was caused by an  error,  but
              the  function  still  continues executing and hence may tidy up.
              This makes it safe for the user-defined widget to alter the com-
              mand line or key bindings temporarily.

              The following widget, caps-lock, serves as an example.
                     self-insert-ucase() {
                       LBUFFER+=${(U)KEYS[-1]}
                     }

                     integer stat

                     zle -N self-insert self-insert-ucase
                     zle -A caps-lock save-caps-lock
                     zle -A accept-line caps-lock

                     zle recursive-edit
                     stat=$?

                     zle -A .self-insert self-insert
                     zle -A save-caps-lock caps-lock
                     zle -D save-caps-lock

                     (( stat )) && zle send-break

                     return $stat
              This  causes  typed  letters  to  be  inserted capitalised until
              either accept-line (i.e. typically the return key) is  typed  or
              the  caps-lock  widget is invoked again; the later is handled by
              saving the old definition of  caps-lock  as  save-caps-lock  and
              then  rebinding  it  to  invoke accept-line.  Note that an error
              from the recursive edit is detected as a non-zero return  status
              and propagated by using the send-break widget.

       redisplay (unbound) (^R) (^R)
              Redisplays the edit buffer.

       reset-prompt (unbound) (unbound) (unbound)
              Force the prompts on both the left and right of the screen to be
              re-expanded, then redisplay  the  edit  buffer.   This  reflects
              changes  both  to the prompt variables themselves and changes in
              the expansion of the values (for example,  changes  in  time  or
              directory,  or  changes to the value of variables referred to by
              the prompt).

              Otherwise, the prompt is only expanded each time zle starts, and
              when the display as been interrupted by output from another part
              of the shell (such as a job notification) which causes the  com-
              mand line to be reprinted.

       send-break (^G ESC-^G) (unbound) (unbound)
              Abort  the  current editor function, e.g. execute-named-command,
              or the editor itself, e.g. if you are in vared. Otherwise  abort
              the parsing of the current line.

       run-help (ESC-H ESC-h) (unbound) (unbound)
              Push  the  buffer onto the buffer stack, and execute the command
              `run-help cmd', where cmd is the current command.   run-help  is
              normally aliased to man.

       vi-set-buffer (unbound) (") (unbound)
              Specify a buffer to be used in the following command.  There are
              35 buffers that can be specified: the 26 `named' buffers  "a  to
              "z  and  the  nine `queued' buffers "1 to "9.  The named buffers
              can also be specified as "A to "Z.

              When a buffer is specified for a cut command, the text being cut
              replaces  the  previous  contents of the specified buffer.  If a
              named buffer is specified using a capital, the newly cut text is
              appended to the buffer instead of overwriting it.

              If no buffer is specified for a cut command, "1 is used, and the
              contents of "1 to "8 are each shifted along one buffer; the con-
              tents of "9 is lost.

       vi-set-mark (unbound) (m) (unbound)
              Set the specified mark at the cursor position.

       set-mark-command (^@) (unbound) (unbound)
              Set the mark at the cursor position.

       spell-word (ESC-$ ESC-S ESC-s) (unbound) (unbound)
              Attempt spelling correction on the current word.

       undefined-key
              This  command  is executed when a key sequence that is not bound
              to any command is typed.  By default it beeps.

       undo (^_ ^Xu ^X^U) (unbound) (unbound)
              Incrementally undo the last text modification.

       redo   Incrementally redo undone text modifications.

       vi-undo-change (unbound) (u) (unbound)
              Undo the last text modification.  If repeated, redo the  modifi-
              cation.

       what-cursor-position (^X=) (unbound) (unbound)
              Print the character under the cursor, its code as an octal, dec-
              imal and hexadecimal number, the current cursor position  within
              the buffer and the column of the cursor in the current line.

       where-is
              Read  the name of an editor command and and print the listing of
              key sequences that invoke the specified command.

       which-command (ESC-?) (unbound) (unbound)
              Push the buffer onto the buffer stack, and execute  the  command
              `which-command   cmd'.   where   cmd  is  the  current  command.
              which-command is normally aliased to whence.

       vi-digit-or-beginning-of-line (unbound) (0) (unbound)
              If the last command executed was a digit as part of an argument,
              continue the argument.  Otherwise, execute vi-beginning-of-line.

zsh 4.3.4                       April 19, 2006                       ZSHZLE(1)

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