zshcontrib man page on Ultrix

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ZSHCONTRIB(1)							 ZSHCONTRIB(1)

NAME
       zshcontrib - user contributions to zsh

DESCRIPTION
       The  Zsh	 source distribution includes a number of items contributed by
       the user community.  These are not inherently a part of the shell,  and
       some may not be available in every zsh installation.  The most signifi‐
       cant of these are documented here.  For documentation on other contrib‐
       uted  items  such as shell functions, look for comments in the function
       source files.

UTILITIES
   Accessing On-Line Help
       The key sequence ESC h is normally bound by ZLE to execute the run-help
       widget  (see  zshzle(1)).   This	 invokes the run-help command with the
       command word from the current input line as its argument.  By  default,
       run-help	 is an alias for the man command, so this often fails when the
       command word is	a  shell  builtin  or  a  user-defined	function.   By
       redefining  the	run-help  alias, one can improve the on-line help pro‐
       vided by the shell.

       The helpfiles utility, found in the Util directory of the distribution,
       is a Perl program that can be used to process the zsh manual to produce
       a separate help file for each shell builtin and for  many  other	 shell
       features	 as  well.  The autoloadable run-help function, found in Func‐
       tions/Misc, searches for these helpfiles	 and  performs	several	 other
       tests to produce the most complete help possible for the command.

       There  may already be a directory of help files on your system; look in
       /usr/share/zsh or /usr/local/share/zsh and subdirectories below	those,
       or ask your system administrator.

       To create your own help files with helpfiles, choose or create a direc‐
       tory where the individual command help files will reside.  For example,
       you  might  choose ~/zsh_help.  If you unpacked the zsh distribution in
       your home directory, you would use the commands:

	      mkdir ~/zsh_help
	      cd ~/zsh_help
	      man zshall | colcrt - | \
	      perl ~/zsh-4.0.1/Util/helpfiles

       Next, to use the run-help function, you need  to	 add  lines  something
       like the following to your .zshrc or equivalent startup file:

	      unalias run-help
	      autoload run-help
	      HELPDIR=~/zsh_help

       The  HELPDIR parameter tells run-help where to look for the help files.
       If your system already has a help file directory installed, set HELPDIR
       to the path of that directory instead.

       Note  that  in order for `autoload run-help' to work, the run-help file
       must be in one of the directories named in your fpath array  (see  zsh‐
       param(1)).   This should already be the case if you have a standard zsh
       installation; if it is not, copy Functions/Misc/run-help to  an	appro‐
       priate directory.

   Recompiling Functions
       If  you frequently edit your zsh functions, or periodically update your
       zsh installation to track the latest developments, you  may  find  that
       function	 digests compiled with the zcompile builtin are frequently out
       of date with respect to the function source files.  This is not usually
       a  problem, because zsh always looks for the newest file when loading a
       function, but it may cause slower shell startup and  function  loading.
       Also,  if  a digest file is explicitly used as an element of fpath, zsh
       won't check whether any of its source files has changed.

       The zrecompile autoloadable function, found in Functions/Misc,  can  be
       used to keep function digests up to date.

       zrecompile [ -qt ] [ name ... ]
       zrecompile [ -qt ] -p args [ -- args ... ]
	      This tries to find *.zwc files and automatically re-compile them
	      if at least one of the original files is newer than the compiled
	      file.  This works only if the names stored in the compiled files
	      are full paths or are relative to the  directory	that  contains
	      the .zwc file.

	      In the first form, each name is the name of a compiled file or a
	      directory containing *.zwc files that should be checked.	If  no
	      arguments	 are  given,  the directories and *.zwc files in fpath
	      are used.

	      When -t is given, no compilation is performed, but a return sta‐
	      tus  of  zero  (true)  is set if there are files that need to be
	      re-compiled and non-zero (false) otherwise.  The -q option  qui‐
	      ets the chatty output that describes what zrecompile is doing.

	      Without  the  -t	option, the return status is zero if all files
	      that needed re-compilation could be  compiled  and  non-zero  if
	      compilation for at least one of the files failed.

	      If  the  -p  option is given, the args are interpreted as one or
	      more sets of arguments for zcompile,  separated  by  `--'.   For
	      example:

		     zrecompile -p \
				-R ~/.zshrc -- \
				-M ~/.zcompdump -- \
				~/zsh/comp.zwc ~/zsh/Completion/*/_*

	      This  compiles  ~/.zshrc into ~/.zshrc.zwc if that doesn't exist
	      or if it is older than  ~/.zshrc.	 The  compiled	file  will  be
	      marked  for  reading  instead  of	 mapping. The same is done for
	      ~/.zcompdump and ~/.zcompdump.zwc, but  this  compiled  file  is
	      marked   for   mapping.	The  last  line	 re-creates  the  file
	      ~/zsh/comp.zwc if any of the files matching the given pattern is
	      newer than it.

	      Without  the  -p	option,	 zrecompile  does  not create function
	      digests that do not already exist, nor does it add new functions
	      to the digest.

       The  following  shell loop is an example of a method for creating func‐
       tion digests for all functions in your fpath, assuming  that  you  have
       write permission to the directories:

	      for ((i=1; i <= $#fpath; ++i)); do
		dir=$fpath[i]
		zwc=${dir:t}.zwc
		if [[ $dir == (.|..) || $dir == (.|..)/* ]]; then
		  continue
		fi
		files=($dir/*(N-.))
		if [[ -w $dir:h && -n $files ]]; then
		  files=(${${(M)files%/*/*}#/})
		  if ( cd $dir:h &&
		       zrecompile -p -U -z $zwc $files ); then
		    fpath[i]=$fpath[i].zwc
		  fi
		fi
	      done

       The  -U and -z options are appropriate for functions in the default zsh
       installation fpath; you may need to use different options for your per‐
       sonal function directories.

       Once  the digests have been created and your fpath modified to refer to
       them, you can keep them up to date by running zrecompile with no	 argu‐
       ments.

   Keyboard Definition
       The  large  number of possible combinations of keyboards, workstations,
       terminals, emulators, and window systems makes it impossible for zsh to
       have  built-in  key  bindings  for  every situation.  The zkbd utility,
       found in Functions/Misc, can help you quickly create key	 bindings  for
       your configuration.

       Run zkbd either as an autoloaded function, or as a shell script:

	      zsh -f ~/zsh-4.0.1/Functions/Misc/zkbd

       When  you  run  zkbd, it first asks you to enter your terminal type; if
       the default it offers is correct, just press return.  It then asks  you
       to  press  a  number  of different keys to determine characteristics of
       your keyboard and terminal; zkbd warns you if it finds anything out  of
       the ordinary, such as a Delete key that sends neither ^H nor ^?.

       The  keystrokes	read by zkbd are recorded as a definition for an asso‐
       ciative array named key, written to a file in  the  subdirectory	 .zkbd
       within  either your HOME or ZDOTDIR directory.  The name of the file is
       composed from  the  TERM,  VENDOR  and  OSTYPE  parameters,  joined  by
       hyphens.

       You  may	 read  this file into your .zshrc or another startup file with
       the "source" or "." commands, then reference the key parameter in bind‐
       key commands, like this:

	      source ${ZDOTDIR:-$HOME}/.zkbd/$TERM-$VENDOR-$OSTYPE
	      [[ -n ${key[Left]} ]] && bindkey "${key[Left]}" backward-char
	      [[ -n ${key[Right]} ]] && bindkey "${key[Right]}" forward-char
	      # etc.

       Note  that  in order for `autoload zkbd' to work, the zkdb file must be
       in one of the directories named in your fpath array (see	 zshparam(1)).
       This  should  already  be the case if you have a standard zsh installa‐
       tion; if it is not, copy Functions/Misc/zkbd to an  appropriate	direc‐
       tory.

   Dumping Shell State
       Occasionally  you  may encounter what appears to be a bug in the shell,
       particularly if you are using a beta version of zsh  or	a  development
       release.	 Usually it is sufficient to send a description of the problem
       to one of the zsh mailing lists (see zsh(1)), but sometimes one of  the
       zsh developers will need to recreate your environment in order to track
       the problem down.

       The script named reporter, found in the Util directory of the distribu‐
       tion,  is  provided for this purpose.  (It is also possible to autoload
       reporter, but reporter is not installed in  fpath  by  default.)	  This
       script  outputs	a  detailed  dump  of  the shell state, in the form of
       another script that can be read with `zsh -f' to recreate that state.

       To use reporter, read the script into your shell with the `.'   command
       and redirect the output into a file:

	      . ~/zsh-4.0.1/Util/reporter > zsh.report

       You should check the zsh.report file for any sensitive information such
       as passwords and delete them by hand before sending the script  to  the
       developers.   Also,  as the output can be voluminous, it's best to wait
       for the developers to ask for this information before sending it.

       You can also use reporter to dump only a subset	of  the	 shell	state.
       This is sometimes useful for creating startup files for the first time.
       Most of the output from reporter is far more detailed than  usually  is
       necessary  for  a  startup  file, but the aliases, options, and zstyles
       states may be  useful  because  they  include  only  changes  from  the
       defaults.   The bindings state may be useful if you have created any of
       your own keymaps, because reporter arranges to dump the keymap creation
       commands as well as the bindings for every keymap.

       As  is  usual  with  automated tools, if you create a startup file with
       reporter, you should edit the results to remove	unnecessary  commands.
       Note  that  if  you're  using the new completion system, you should not
       dump the functions state to your startup files with reporter;  use  the
       compdump function instead (see zshcompsys(1)).

       reporter [ state ... ]
	      Print  to	 standard  output  the indicated subset of the current
	      shell state.  The state arguments may be one or more of:

	      all    Output everything listed below.
	      aliases
		     Output alias definitions.
	      bindings
		     Output ZLE key maps and bindings.
	      completion
		     Output old-style compctl  commands.   New	completion  is
		     covered by functions and zstyles.
	      functions
		     Output autoloads and function definitions.
	      limits Output limit commands.
	      options
		     Output setopt commands.
	      styles Same as zstyles.
	      variables
		     Output  shell parameter assignments, plus export commands
		     for any environment variables.
	      zstyles
		     Output zstyle commands.

	      If the state is omitted, all is assumed.

       With the exception of `all', every state can be abbreviated by any pre‐
       fix, even a single letter; thus a is the same as aliases, z is the same
       as zstyles, etc.

PROMPT THEMES
   Installation
       You should make sure  all  the  functions  from	the  Functions/Prompts
       directory of the source distribution are available; they all begin with
       the string `prompt_' except for the special function`promptinit'.   You
       also  need  the	`colors'  function  from Functions/Misc.  All of these
       functions may already have been installed on your system; if  not,  you
       will  need  to find them and copy them.	The directory should appear as
       one of the elements of the fpath array (this should already be the case
       if they were installed), and at least the function promptinit should be
       autoloaded; it will autoload the rest.  Finally, to initialize the  use
       of  the system you need to call the promptinit function.	 The following
       code in your .zshrc will arrange for this;  assume  the	functions  are
       stored in the directory ~/myfns:

	      fpath=(~/myfns $fpath)
	      autoload -U promptinit
	      promptinit

   Theme Selection
       Use  the	 prompt	 command to select your preferred theme.  This command
       may be added to your .zshrc following the call to promptinit  in	 order
       to start zsh with a theme already selected.

       prompt [ -c | -l ]
       prompt [ -p | -h ] [ theme ... ]
       prompt [ -s ] theme [ arg ... ]
	      Set  or  examine	the prompt theme.  With no options and a theme
	      argument, the theme with that name is set as the current	theme.
	      The  available  themes  are  determined  at run time; use the -l
	      option to see a list.  The special  theme	 `random'  selects  at
	      random one of the available themes and sets your prompt to that.

	      In  some	cases  the  theme may be modified by one or more argu‐
	      ments, which should be given after the theme name.  See the help
	      for each theme for descriptions of these arguments.

	      Options are:

	      -c     Show  the currently selected theme and its parameters, if
		     any.
	      -l     List all available prompt themes.
	      -p     Preview the theme named by theme, or  all	themes	if  no
		     theme is given.
	      -h     Show help for the theme named by theme, or for the prompt
		     function if no theme is given.
	      -s     Set theme as the current theme and save state.

       prompt_theme_setup
	      Each available theme has a setup function which is called by the
	      prompt function to install that theme.  This function may define
	      other functions as necessary to maintain the  prompt,  including
	      functions	 used  to  preview  the prompt or provide help for its
	      use.  You should not normally  call  a  theme's  setup  function
	      directly.

ZLE FUNCTIONS
   Widgets
       These  functions all implement user-defined ZLE widgets (see zshzle(1))
       which can be bound to keystrokes in interactive shells.	To  use	 them,
       your .zshrc should contain lines of the form

	      autoload function
	      zle -N function

       followed	 by  an	 appropriate bindkey command to associate the function
       with a key sequence.  Suggested bindings are described below.

       cycle-completion-positions
	      After inserting an unambiguous string into the command line, the
	      new  function  based  completion	system may know about multiple
	      places in this string where characters  are  missing  or	differ
	      from  at	least one of the possible matches.  It will then place
	      the cursor on the position it considers to be the most interest‐
	      ing one, i.e. the one where one can disambiguate between as many
	      matches as possible with as little typing as possible.

	      This widget allows the cursor to be easily moved	to  the	 other
	      interesting  spots.   It	can  be	 invoked  repeatedly  to cycle
	      between all positions reported by the completion system.

       edit-command-line
	      Edit the command line using your visual editor, as in ksh.

		     bindkey -M vicmd v edit-command-line

       history-search-end
	      This   function	implements    the    widgets	history-begin‐
	      ning-search-backward-end	  and	 history-beginning-search-for‐
	      ward-end.	 These commands work by first calling the  correspond‐
	      ing builtin widget (see `History Control' in zshzle(1)) and then
	      moving the cursor to the end of the line.	 The  original	cursor
	      position	is  remembered and restored before calling the builtin
	      widget a second time, so that the same  search  is  repeated  to
	      look farther through the history.

	      Although	you autoload only one function, the commands to use it
	      are slightly different because it implements two widgets.

		     zle -N history-beginning-search-backward-end \
			    history-search-end
		     zle -N history-beginning-search-forward-end \
			    history-search-end
		     bindkey '\e^P' history-beginning-search-backward-end
		     bindkey '\e^N' history-beginning-search-forward-end

       incarg Typing the keystrokes for this widget with the cursor placed  on
	      or  to  the  left of an integer causes that integer to be incre‐
	      mented by one.  With a numeric prefix argument,  the  number  is
	      incremented  by  the  amount of the argument (decremented if the
	      prefix argument is negative).  The shell parameter incarg may be
	      set to change the default increment something other than one.

		     bindkey '^X+' incarg

       incremental-complete-word
	      This  allows  incremental	 completion of a word.	After starting
	      this command, a list of completion choices can  be  shown	 after
	      every  character	you type, which you can delete with ^H or DEL.
	      Pressing return accepts the completion so far and returns you to
	      normal  editing  (that  is,  the command line is not immediately
	      executed).  You can hit TAB to do normal completion, ^G to abort
	      back to the state when you started, and ^D to list the matches.

	      This works only with the new function based completion system.

		     bindkey '^Xi' incremental-complete-word

       insert-files
	      This  function  allows  you  type	 a  file  pattern, and see the
	      results of the expansion at each step.  When you hit return, all
	      expansions are inserted into the command line.

		     bindkey '^Xf' insert-files

       predict-on
	      This set of functions implements predictive typing using history
	      search.  After predict-on, typing characters causes  the	editor
	      to  look	backward  in  the history for the first line beginning
	      with what you have typed so  far.	  After	 predict-off,  editing
	      returns  to normal for the line found.  In fact, you often don't
	      even need to use predict-off, because if the line doesn't	 match
	      something in the history, adding a key performs standard comple‐
	      tion, and then inserts itself  if	 no  completions  were	found.
	      However,	editing	 in  the middle of a line is liable to confuse
	      prediction; see the toggle style below.

	      With the function based completion system (which is  needed  for
	      this),  you  should  be  able to type TAB at almost any point to
	      advance the cursor to the next ``interesting''  character	 posi‐
	      tion  (usually  the end of the current word, but sometimes some‐
	      where in the middle of the word).	 And of course as soon as  the
	      entire  line is what you want, you can accept with return, with‐
	      out needing to move the cursor to the end first.

	      The first time predict-on is used, it creates several additional
	      widget functions:

	      delete-backward-and-predict
		     Replaces  the  backward-delete-char  widget.   You do not
		     need to bind this yourself.
	      insert-and-predict
		     Implements predictive typing by replacing the self-insert
		     widget.  You do not need to bind this yourself.
	      predict-off
		     Turns off predictive typing.

	      Although you autoload only the predict-on function, it is neces‐
	      sary to create a keybinding for predict-off as well.

		     zle -N predict-on
		     zle -N predict-off
		     bindkey '^X^Z' predict-on
		     bindkey '^Z' predict-off

       smart-insert-last-word
	      This function may replace the insert-last-word widget, like so:

		     zle -N insert-last-word smart-insert-last-word

	      With a numeric prefix, it behaves like insert-last-word,	except
	      that  words in comments are ignored when INTERACTIVE_COMMENTS is
	      set.

	      Otherwise, the rightmost ``interesting'' word from the  previous
	      command  is  found  and  inserted.   The	default	 definition of
	      ``interesting'' is that the word contains at  least  one	alpha‐
	      betic  character,	 slash,	 or backslash.	This definition may be
	      overridden by use of the match style.  The context used to  look
	      up  the  style  is  the  widget  name, so usually the context is
	      :insert-last-word.  However, you can bind this function to  dif‐
	      ferent widgets to use different patterns:

		     zle -N insert-last-assignment smart-insert-last-word
		     zstyle :insert-last-assignment match '[[:alpha:]][][[:alnum:]]#=*'
		     bindkey '\e=' insert-last-assignment

   Styles
       The  behavior  of several of the above widgets can be controlled by the
       use of the zstyle mechanism.  In particular, widgets that interact with
       the  completion system pass along their context to any completions that
       they invoke.

       break-keys
	      This style is used by the incremental-complete-word widget.  Its
	      value  should  be	 a pattern, and all keys matching this pattern
	      will cause the widget to stop incremental completion without the
	      key  having any further effect. Like all styles used directly by
	      incremental-complete-word, this style is	looked	up  using  the
	      context `:incremental'.

       completer
	      The incremental-complete-word and insert-and-predict widgets set
	      up their top-level context name before calling completion.  This
	      allows  one  to define different sets of completer functions for
	      normal completion and for these widgets.	For  example,  to  use
	      completion,  approximation and correction for normal completion,
	      completion and correction for incremental	 completion  and  only
	      completion for prediction one could use:

		     zstyle ':completion:*' completer \
			     _complete _correct _approximate
		     zstyle ':completion:incremental:*' completer \
			     _complete _correct
		     zstyle ':completion:predict:*' completer \
			     _complete

	      It is a good idea to restrict the completers used in prediction,
	      because they may be automatically	 invoked  as  you  type.   The
	      _list and _menu completers should never be used with prediction.
	      The _approximate, _correct, _expand, and _match  completers  may
	      be  used,	 but be aware that they may change characters anywhere
	      in the word behind the cursor, so you need  to  watch  carefully
	      that the result is what you intended.

       cursor The  insert-and-predict  widget  uses this style, in the context
	      `:predict', to decide where to place the cursor after completion
	      has been tried.  Values are:

	      complete
		     The cursor is left where it was when completion finished,
		     but only if it is after a character equal to the one just
		     inserted  by the user.  If it is after another character,
		     this value is the same as `key'.

	      key    The cursor is left after the nth occurrence of the	 char‐
		     acter  just inserted, where n is the number of times that
		     character appeared in  the	 word  before  completion  was
		     attempted.	  In short, this has the effect of leaving the
		     cursor after the character just typed even if the comple‐
		     tion  code	 found out that no other characters need to be
		     inserted at that position.

	      Any other value for this style unconditionally leaves the cursor
	      at the position where the completion code left it.

       list   When using the incremental-complete-word widget, this style says
	      if the matches should be listed on every key press (if they  fit
	      on  the  screen).	 Use the context prefix `:completion:incremen‐
	      tal'.

	      The insert-and-predict widget uses this style to decide  if  the
	      completion  should  be  shown even if there is only one possible
	      completion.  This is done if the value  of  this	style  is  the
	      string  always.	In  this  case	the context is `:predict' (not
	      `:completion:predict').

       match  This style is used by smart-insert-last-word to provide  a  pat‐
	      tern (using full EXTENDED_GLOB syntax) that matches an interest‐
	      ing word.	 The context is	 the  name  of	the  widget  to	 which
	      smart-insert-last-word is bound (see above).  The default behav‐
	      ior of smart-insert-last-word is equivalent to:

		     zstyle :insert-last-word match '*[[:alpha:]/\\]*'

	      However, you might want to include words that contain spaces:

		     zstyle :insert-last-word match '*[[:alpha:][:space:]/\\]*'

	      Or include numbers as long as the word is at least  two  charac‐
	      ters long:

		     zstyle :insert-last-word match '*([[:digit:]]?|[[:alpha:]/\\])*'

	      The above example causes redirections like "2>" to be included.

       prompt The  incremental-complete-word  widget  shows  the value of this
	      style in the status line	during	incremental  completion.   The
	      string  value may contain any of the following substrings in the
	      manner of the PS1 and other prompt parameters:

	      %c     Replaced by the name of the completer function that  gen‐
		     erated the matches (without the leading underscore).

	      %l     When the list style is set, replaced by `...' if the list
		     of matches is too long to fit on the screen and  with  an
		     empty  string otherwise.  If the list style is `false' or
		     not set, `%l' is always removed.

	      %n     Replaced by the number of matches generated.

	      %s     Replaced by `-no match-',	`-no  prefix-',	 or  an	 empty
		     string if there is no completion matching the word on the
		     line, if the matches have no common prefix different from
		     the  word	on the line, or if there is such a common pre‐
		     fix, respectively.

	      %u     Replaced by the unambiguous part of all matches, if there
		     is any, and if it is different from the word on the line.

	      Like `break-keys', this uses the `:incremental' context.

       stop-keys
	      This style is used by the incremental-complete-word widget.  Its
	      value is treated similarly to the one for the  break-keys	 style
	      (and  uses  the same context: `:incremental').  However, in this
	      case all keys matching the pattern given as its value will  stop
	      incremental  completion  and will then execute their usual func‐
	      tion.

       toggle This boolean style is used by predict-on and its related widgets
	      in the context `:predict'.  If set to one of the standard `true'
	      values, predictive typing is automatically toggled off in situa‐
	      tions  where it is unlikely to be useful, such as when editing a
	      multi-line buffer or after moving into the middle of a line  and
	      then  deleting  a character.  The default is to leave prediction
	      turned on until an explicit call to predict-off.

       verbose
	      This boolean style is used by predict-on and its related widgets
	      in the context `:predict'.  If set to one of the standard `true'
	      values, these widgets display a message below  the  prompt  when
	      the  predictive state is toggled.	 This is most useful in combi‐
	      nation with the toggle style.   The  default  does  not  display
	      these messages.

OTHER FUNCTIONS
       There  are  a  large  number of helpful functions in the Functions/Misc
       directory of the zsh distribution.  Most are very  simple  and  do  not
       require documentation here, but a few are worthy of special mention.

   Descriptions
       colors This  function  initializes  several  associative	 arrays to map
	      color names to (and from) the ANSI standard eight-color terminal
	      codes.   These  are used by the prompt theme system (see above).
	      You seldom should need to run colors more than once.

	      The eight base colors are:  black,  red,	green,	yellow,	 blue,
	      magenta,	cyan,  and  white.   Each of these has codes for fore‐
	      ground and background.  In addition there	 are  eight  intensity
	      attributes:  bold,  faint,  standout, underline, blink, reverse,
	      and conceal.  Finally,  there  are  six  codes  used  to	negate
	      attributes:  none (reset all attributes to the defaults), normal
	      (neither bold nor faint), no-standout,  no-underline,  no-blink,
	      and no-reverse.

	      Some  terminals  do  not	support all combinations of colors and
	      intensities.

	      The associative arrays are:

	      color
	      colour Map all the color names to their integer codes, and inte‐
		     ger  codes	 to the color names.  The eight base names map
		     to the foreground color codes, as do names prefixed  with
		     `fg-', such as `fg-red'.  Names prefixed with `bg-', such
		     as `bg-blue', refer to the background codes.  The reverse
		     mapping  from  code  to  color yields base name for fore‐
		     ground codes and the bg- form for backgrounds.

		     Although it is a misnomer to call	them  `colors',	 these
		     arrays  also map the other fourteen attributes from names
		     to codes and codes to names.

	      fg
	      fg_bold
	      fg_no_bold
		     Map the eight basic color names to ANSI  terminal	escape
		     sequences	that  set  the	corresponding  foreground text
		     properties.  The fg sequences change  the	color  without
		     changing the eight intensity attributes.

	      bg
	      bg_bold
	      bg_no_bold
		     Map  the  eight basic color names to ANSI terminal escape
		     sequences that set the corresponding  background  proper‐
		     ties.  The bg sequences change the color without changing
		     the eight intensity attributes.

	      In addition, the scalar parameters  reset_color  and  bold_color
	      are  set	to  the	 ANSI  terminal	 escapes  that	turn  off  all
	      attributes and turn on bold intensity, respectively.

       fned name
	      Same as zed -f.  This function does not appear in the  zsh  dis‐
	      tribution, but can be created by linking zed to the name fned in
	      some directory in your fpath.

       is-at-least needed [ present ]
	      Perform a greater-than-or-equal-to  comparison  of  two  strings
	      having  the format of a zsh version number; that is, a string of
	      numbers and text with segments separated by dots or dashes.   If
	      the  present string is not provided, $ZSH_VERSION is used.  Seg‐
	      ments are paired left-to-right in the two strings	 with  leading
	      non-number parts ignored.	 If one string has fewer segments than
	      the other, the missing segments are considered zero.

	      This is useful in startup files to set options and  other	 state
	      that are not available in all versions of zsh.

		     is-at-least 3.1.6-15 && setopt NO_GLOBAL_RCS
		     is-at-least 3.1.0 && setopt HIST_REDUCE_BLANKS
		     is-at-least 2.6-17 || print "You can't use is-at-least here."

       nslookup [ arg ... ]
	      This  wrapper  function  for  the	 nslookup command requires the
	      zsh/zpty module (see zshmodules(1)).  It	behaves	 exactly  like
	      the  standard  nslookup  except  that  it	 provides customizable
	      prompts  (including  a  right-side  prompt)  and	completion  of
	      nslookup	commands,  host	 names,	 etc.  (if  you	 use the func‐
	      tion-based completion system).  Completion  styles  may  be  set
	      with the context prefix `:completion:nslookup'.

	      See also the pager, prompt and rprompt styles below.

       run-help
	      See `Accessing On-Line Help' above.

       zed [ -f ] name
	      This  function  uses  the ZLE editor to edit a file or function.
	      It rebinds the return key to insert a line break, and adds bind‐
	      ings for `^X^W' in the emacs keymap and `ZZ' in the vicmd keymap
	      to accept (and therefore write, in  the  case  of	 a  file)  the
	      edited file or function.	Keybindings are otherwise the standard
	      ones; completion is available, and styles may be	set  with  the
	      context prefix `:completion:zed'.

	      Only  one	 name argument is recognized (additional arguments are
	      ignored).	 If the -f option is given, the name is	 taken	to  be
	      that  of	a function; if the function is marked for autoloading,
	      zed searches for it in the fpath and loads it.  Note that	 func‐
	      tions  edited this way are installed into the current shell, but
	      not written back to the autoload file.

	      Without -f, name is the path name of the	file  to  edit,	 which
	      need not exist; it is created on write, if necessary.

       zcp [ -finqQvw ] srcpat dest
       zln [ -finqQsvw ] srcpat dest
	      Same as zmv -C and zmv -L, respectively.	These functions do not
	      appear in the zsh distribution, but can be  created  by  linking
	      zmv to the names zcp and zln in some directory in your fpath.

       zkbd   See `Keyboard Definition' above.

       zmv [ -finqQsvw ] [ -C | -L | -M | -p program ] [ -o optstring ] srcpat
       dest
	      Move (usually, rename) files matching the pattern srcpat to cor‐
	      responding  files	 having names of the form given by dest, where
	      srcpat contains parentheses surrounding patterns which  will  be
	      replaced in turn by $1, $2, ... in dest.	For example,

		     zmv '(*).lis' '$1.txt'

	      renames	 `foo.lis'   to	  `foo.txt',   `my.old.stuff.lis'   to
	      `my.old.stuff.txt', and so on.

	      The pattern is always treated as an EXTENDED_GLOB pattern.   Any
	      file  whose  name	 is  not changed by the substitution is simply
	      ignored.	Any error (a substitution resulted in an empty string,
	      two  substitutions  gave the same result, the destination was an
	      existing regular file and -f was not given)  causes  the	entire
	      function to abort without doing anything.

	      Options:

	      -f     Force  overwriting	 of  destination files.	 Not currently
		     passed down to the mv/cp/ln command due  to  vagaries  of
		     implementations (but you can use -o-f to do that).
	      -i     Interactive:  show	 each  line to be executed and ask the
		     user whether to execute it.  `Y' or `y' will execute  it,
		     anything  else  will skip it.  Note that you just need to
		     type one character.
	      -n     No execution: print what would happen, but don't do it.
	      -q     Turn bare glob qualifiers off: now assumed by default, so
		     this has no effect.
	      -Q     Force bare glob qualifiers on.  Don't turn this on unless
		     you are actually using glob qualifiers in a pattern.
	      -s     Symbolic, passed down to ln; only works with -L.
	      -v     Verbose: print each command as it's being executed.
	      -w     Pick out wildcard parts  of  the  pattern,	 as  described
		     above,  and  implicitly  add parentheses for referring to
		     them.
	      -C
	      -L
	      -M     Force cp, ln or mv, respectively, regardless of the  name
		     of the function.
	      -p program
		     Call  program instead of cp, ln or mv.  Whatever it does,
		     it should at least understand the form `program  --  old‐
		     name  newname'  where  oldname  and newname are filenames
		     generated by zmv.
	      -o optstring
		     The optstring is split into words and passed down	verba‐
		     tim  to  the  cp,	ln or mv command called to perform the
		     work.  It should probably begin with a `-'.

	      For more complete examples and other implementation details, see
	      the  zmv	source file, usually located in one of the directories
	      named in your fpath, or in Functions/Misc/zmv in the zsh distri‐
	      bution.

       zrecompile
	      See `Recompiling Functions' above.

       zstyle+ context style value [ + subcontext style value ... ]
	      This  makes  defining styles a bit simpler by using a single `+'
	      as a special token that allows you to append a context  name  to
	      the previously used context name.	 Like this:

		     zstyle+ ':foo:bar' style1 value1 \
			   + ':baz'	style2 value2 \
			   + ':frob'	style3 value3

	      This  defines `style1' with `value1' for the context :foo:bar as
	      usual, but it also defines `style2' with `value2' for  the  con‐
	      text  :foo:bar:baz and `style3' with `value3' for :foo:bar:frob.
	      Any subcontext may be the empty string to re-use the first  con‐
	      text unchanged.

   Styles
       insert-tab
	      The  zed function sets this style in context `:completion:zed:*'
	      to turn off completion when TAB is typed at the beginning	 of  a
	      line.   You may override this by setting your own value for this
	      context and style.

       pager  The nslookup  function  looks  up	 this  style  in  the  context
	      `:nslookup' to determine the program used to display output that
	      does not fit on a single screen.

       prompt
       rprompt
	      The nslookup  function  looks  up	 this  style  in  the  context
	      `:nslookup' to set the prompt and the right-side prompt, respec‐
	      tively.  The usual expansions for the PS1	 and  RPS1  parameters
	      may be used (see zshmisc(1)).

zsh 4.0.1			 June 1, 2001			 ZSHCONTRIB(1)
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