Provided by: xscreensaver-data-extra_6.08+dfsg1-1ubuntu3_amd64 bug

NAME

       apple2 - Apple ][ display emulator

SYNOPSIS

       apple2   [--display   host:display.screen]   [--foreground   color]  [--background  color]
       [--window] [--root] [--window-id number][--mono] [--install] [--visual visual]  [--program
       command  to run] [--basic] [--slideshow] [--text] [--meta] [--esc] [--bs] [--del] [--fast]
       [--fps]

DESCRIPTION

       The apple2 program simulates an original Apple ][ Plus computer in all its 1979 glory.  It
       also reproduces the appearance of display on a color television set of the period.

       There  are  3  modes: basic, slideshow, and text. Normally it chooses a mode randomly, but
       you can override with the --basic, --slideshow, or --text options.

       In basic mode a simulated user types in a Basic program and runs it.

       In slideshow mode it chooses a number of images from the image source you configured  into
       XScreenSaver  and  displays  them within the limitations of the Apple ][ display hardware.
       With only 6 available colors, you can only make out the general shape of the pictures.

       In text mode it displays the output of a command or the contents of a file or URL (via the
       default xscreensaver-text(6x) program, which can be overridden with --program).

       In text mode, it is also a fully functional (if anachronistic) vt100 terminal emulator.

OPTIONS

       apple2 accepts the following options:

       --window
               Draw on a newly-created window.  This is the default.

       --root  Draw on the root window.

       --window-id number
               Draw on the specified window.

       --mono  If on a color display, pretend we're on a monochrome display.

       --install
               Install a private colormap for the window.

       --visual visual
               Specify  which visual to use.  Legal values are the name of a visual class, or the
               id number (decimal or hex) of a specific visual.

       --basic Choose basic mode

       --slideshow
               Choose slideshow mode

       --text  Choose text mode

       --program sh-command
               In text mode, the command to run to generate the text to display. This option  may
               be any string acceptable to /bin/sh. The program will be run at the end of a pipe,
               and any characters that it prints to stdout  will  be  printed  on  the  Apple  ][
               display.  If  the  program  exits,  it  will  be  launched  again after 3 seconds.
               Default: xscreensaver-text(6x).

               In text mode, apple2 emulates a vt100 terminal running on a  40x24  uppercase-only
               screen.

               For example:

                 apple2 --text --program 'ping apple.com'
                 apple2 --text --program 'ps -e'
                 apple2 --text --program 'od -txCz -w7 /dev/urandom'
                 apple2 --text --program 'cat /dev/random'
                 apple2 --text --fast --program 'emacs -nw -q -f life'
                 apple2 --text --fast \
                        --program 'emacs -nw -q --eval "(hanoi 5)"'

               You  can  also  use  apple2 as an extremely lo-fi replacement for the xterm(1) and
               gnome-terminal(1) terminal emulators:

                 apple2 -text -fast -program tcsh

       --pty   In --text mode, launch the sub-program under a pty so  that  it  can  address  the
               screen directly.  This is the default.

       --pipe  In --text mode, launch the sub-program at the end of a pipe: do not let it address
               the screen directly.

       --esc   When the user types a key with the Alt  or  Meta  keys  held  down,  send  an  ESC
               character first.  This is the default.

       --meta  When Meta or Alt are held down, set the high bit on the character instead.

       --del   Swap Backspace and Delete.  This is the default.

       --bs    Do not swap Backspace and Delete.

       --fast  Normally,  characters  are  printed  at the speed of an original Apple][ computer;
               however, when using this program as a terminal emulator, the novelty of those  300
               baud  characters might wear off.  You can use the --fast option to speed things up
               a bit.

       --fps   Display the current frame rate and CPU load.

TERMINAL EMULATION

       By default, apple2 allocates a pseudo-tty for the --text-mode sub-process  to  run  under.
       This  has the desirable side effect that the program will be able to use ioctl(2) to fetch
       information about terminal parameters and  window  size,  which  many  programs  (such  as
       top(1))  need to run properly. apple2 will also set the environment variable TERM to vt100
       in the child process.

       Any characters typed on the apple2 window will be passed along to the sub-process.   (Note
       that  this only works when running in "window" mode, not when running in --root mode under
       xscreensaver.)

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
               to get the name of a resource file that overrides the global resources  stored  in
               the RESOURCE_MANAGER property.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

       TERM    to inform the sub-process of the type of terminal emulation.

X RESOURCES

       Notable  X  resources  supported  include  the  following  which correspond to standard TV
       controls: analogTVTint,  analogTVColor,  analogTVBrightness,  and  analogTVContrast  which
       correspond  to  standard TV controls. They range from 0 to 100,except for tint which is an
       angle between -180 and +180.

TRADEMARKS

       Apple ][ and Applesoft are trademarks of Apple Computer.

SEE ALSO

       xscreensaver(1), bsod(6x), xscreensaver-text(6x), fortune(1), phosphor(6x),  starwars(6x),
       ljlatest(6x),    dadadodo(1),    webcollage(6x),    driftnet(1)    EtherPEG,    EtherPeek,
       console_codes(4).

COPYRIGHT

       Copyright © 2002-2003 by Trevor Blackwell.  Permission to use, copy,  modify,  distribute,
       and  sell  this  software  and its documentation for any purpose is hereby granted without
       fee, provided that the above copyright notice appear in all  copies  and  that  both  that
       copyright  notice  and  this  permission  notice  appear  in supporting documentation.  No
       representations are made about the suitability of this software for any  purpose.   It  is
       provided "as is" without express or implied warranty.

AUTHOR

       Television  and  Apple ][ emulation by Trevor Blackwell <tlb@tlb.org>.  Slideshow and text
       mode  by  Jamie  Zawinski  <jwz@jwz.org>.   Pty  and  vt100  emulation  by  Fredrik   Tolf
       <fredrik@dolda2000.com>.