autoload [ {+|-}RTUXdkmrtWz ] [ -w ] [ name ... ]
       See  the  section  `Autoloading Functions' in zshmisc(1) for full
       details.  The fpath parameter will be searched to find the  func-
       tion definition when the function is first referenced.

       If  name consists of an absolute path, the function is defined to
       load from the file given (searching as usual for  dump  files  in
       the  given  location).   The name of the function is the basename
       (non-directory part) of the file.  It is normally an error if the
       function is not found in the given location; however, if the  op-
       tion  -d is given, searching for the function defaults to $fpath.
       If a function is loaded by absolute path,  any  functions  loaded
       from  it  that  are  marked for autoload without an absolute path
       have the load path of the parent function  temporarily  prepended
       to $fpath.

       If the option -r or -R is given, the function is searched for im-
       mediately  and  the  location is recorded internally for use when
       the function is executed; a relative path is expanded  using  the
       value  of  $PWD.   This protects against a change to $fpath after
       the call to autoload.  With -r, if the function is not found,  it
       is  silently  left  unresolved until execution; with -R, an error
       message is printed and command processing aborted immediately the
       search fails, i.e. at the autoload command rather than  at  func-
       tion execution..

       The  flag -X may be used only inside a shell function.  It causes
       the calling function to be marked for autoloading and then  imme-
       diately loaded and executed, with the current array of positional
       parameters  as  arguments.  This replaces the previous definition
       of the function.  If no function definition is found, an error is
       printed and the function remains undefined  and  marked  for  au-
       toloading.   If  an  argument is given, it is used as a directory
       (i.e. it does not include the name of the function) in which  the
       function  is to be found; this may be combined with the -d option
       to allow the function search to default to $fpath if it is not in
       the given location.

       The flag +X attempts to load each name as an autoloaded function,
       but does not execute it.  The exit status is  zero  (success)  if
       the  function  was not previously defined and a definition for it
       was found.  This does not replace any existing definition of  the
       function.   The  exit status is nonzero (failure) if the function
       was already defined or when no definition was found.  In the lat-
       ter case the function remains undefined and marked for  autoload-
       ing.   If  ksh-style autoloading is enabled, the function created
       will contain the contents of the file plus a call to the function
       itself appended to it, thus giving normal ksh autoloading  behav-
       iour  on  the first call to the function.  If the -m flag is also
       given each name is treated as a pattern and all functions already
       marked for autoload that match the pattern are loaded.

       With the -t flag, turn on execution tracing; with -T, turn on ex-
       ecution tracing only for the current function, turning it off  on
       entry  to  any called functions that do not also have tracing en-
       abled.

       With the -U flag, alias expansion is suppressed when the function
       is loaded.

       With the -w flag, the names are taken as names of files  compiled
       with  the zcompile builtin, and all functions defined in them are
       marked for autoloading.

       The flags -z and -k mark the function to be autoloaded using  the
       zsh  or  ksh  style,  as if the option KSH_AUTOLOAD were unset or
       were set, respectively.  The flags override the  setting  of  the
       option at the time the function is loaded.

       Note  that  the  autoload  command makes no attempt to ensure the
       shell options set during the loading or  execution  of  the  file
       have  any particular value.  For this, the emulate command can be
       used:

              emulate zsh -c 'autoload -Uz func'

       arranges that when func is loaded the shell is in native zsh emu-
       lation, and this emulation is also applied when func is run.

       Some of the functions of autoload are also provided by  functions
       -u  or  functions -U, but autoload is a more comprehensive inter-
       face.