Copyright (c) 1990 1991, Iverson Software Inc.  All rights 
reserved.

Please also read the documents in directory !J.Docs.

J for the Archimedes.

The !J application is an implementation of J for the Archimedes. 
Double-click on the !J icon to start J. An icon will appear on the 
icon bar, and a J Session window will appear on the desktop, ready 
for input.

J Session window menu 
---------------------

Info      About this program.

Record    Drag the icon to a filer window to begin recording the 
session.
          If ticked, click to end recording.

Save      Save WS or session
 WS        Drag the icon to a filer window to save the current J 
           workspace.
 Session   Drag the icon to a filer window to save the contents of the
           J Session window.

Select    This submenu works just like !Edit's.
 Save      Drag the icon to a filer window or to another 
           application to save the current selection.
 Copy
 Move
 Delete
 Clear

Wrap      Click to toggle line-wrap.

Quit      Quit J. WARNING: all unsaved work will be lost.

Closing this window does not end the session. The window may be 
re-opened by clicking on the J icon on the icon bar.

J Session window
----------------

To enter a J sentence, type a line at the end of the session 
window followed by Return.

To recall an earlier line, move the cursor to it by clicking the 
mouse or using the cursor keys, and press enter once. The line 
will be copied at the end of the session and can be edited. 
Alternatively, the first edit character entered on an earlier line 
will cause the edited line to be copied to the end of the session.

Cursor control and editing keys, and mouse control, are similar to 
those for !Edit.

Selection facilities (copy, move, delete, clear) are provided.

Drop a Text file containing a J script from the filer or from 
another application (eg !Edit) on the J Session window to read the 
script. Multiple files can be selected and dropped.

Drop a Data file containing a J workspace icon on the J Session 
window to load the workspace.

J Icon menu 
-----------

Info         About this program.

Restore      Restores the J Session window.

New session  Start a new J session.

Quit         Quit J. WARNING: all unsaved work will be lost.

J Icon
------

Drop a Text file containing a J script from the filer or from 
another application (eg !Edit) on the J Icon to start a new J 
Session and read the script. Multiple files can be selected and 
dropped to start multiple sessions, if there is enough memory.

Drop a Data file containing a J workspace icon on the J Icon to 
start a new J session and load the workspace.

!J.Profile
----------

If a Text script file called Profile exists in the !J application 
directory, it will be read in when J starts.

J command
---------

J may be started from a command line.

J [-v]
 Start a vanilla J session using the full screen. No session manager is
 loaded and standard BBC text editing must be used.

J -d[nnn] [-s<script>] [-w<workspace>]
 Start a desktop J session.
  -dnnn         Set the session buffer size to nnn bytes (default 
                16384).
  -s<script>    Read the given Text script file instead of 
                !J.Profile.
  -w<workspace> Load the given Data workspace file insead of 
                !J.Profile.

Paul Chapman
1991 10 25