EDT.TXT v1.2 [9/24/90] (c)1990 David P. Hoekstra
Help file for EDT.LSP Ver 1.2 (c) 1990
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If you find EDT.LSP easy and convenient to use, a registration of
$25 would be appreciated.  If you send $35, you will receive a
fully  documented, expanded copy of the latest version of this
program. The contents of this program, whole or in part, cannot be
distributed for commercial purposes without the written consent of the
author. Please send check or money order to the following address:

     David Hoekstra
     3278 S. Dudley Dr.
     Lakewood, CO  80227, 
     Ph (303) 989-1160.

Please do not distribute this unless all of the three following
files are included:  

     EDT.LSP - The main program file
     EDST.LSP- Separate subroutines to be loaded into and out 
               of memory.
     EDT.TXT - Help file and instructions
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   INSTALLATION
   ~~~~~~~~~~~~
To get the program into memory, type:

          (load "edt")

at the AutoCAD 'Command:' prompt, or put that statement into your
ACAD.LSP file.  You must have the file EDST.LSP where AutoCAD can 
find it (ie. in the main ACAD directory).

In order for EDT to use the cursor keys, it uses ANSI escape
sequence to remap those keys to values readable by the GRREAD 
function.  This requires that the ANSI.SYS must be installed in 
the CONFIG.SYS file, as in

		device=c:\ansi.sys
		
and that the program be able to write to the ANSI driver.  AutoCAD can 
do so if it is the TEXT screen.  I have only tried this on a single 
screen configuration with standard screen drivers.  If this does not 
work for your system (the cursor will stop blinking and the cross hairs
will start to move) give me a call and we will figure a way to 
temporarily remap the cursor keys another way.

It is the remapping of the cursor keys that causes the screen to flash 
briefly when entering and exiting EDT (unfortunately)

The rate of the cursor blinking is entirely dependent on the speed
of your system.  To change the rate of cursor blinks, use a text
editor or EDLIN if you must, and edit the line near the beginning of
the LISP portion (Lost In Silly Parenthesis), right after the
initial header in the  EDT.LSP file (all those lines starting with
';') that looks like this:

          (setq CURSRBLINK 10)
          
10 is the rate at which it blinks, a smaller value (whole numbers
only PLEASE) will cause it to blink faster, a larger number will
cause it to blink slower.  Change this value to suit yourself for
each system.

   OPERATION
   ~~~~~~~~~
After installing, type 'EDT' at the command prompt, and the program will
ask for the entities to edit, EDT will skip by any non-text entities, so
feel free to use window or crossing commands.  Any method of selection
acceptable to AutoCAD will suffice.

The program will optionally unload and load up a number of routines 
from disk to free up space when not in use.  This will slow things 
down when it starts up.  To enable unloading of the routines, type

          EDTMEM
          
This will change the value of the global variable EDTM, which if nil, 
cause the program to remove as much from memory as it can when it 
is finished.  This value will remain for the duration of the current 
drawing session.  Typing EDTMEM will toggle the value of EDTM between
nil and 1.

Added in Version 1.2 is a large line length adjustment, the text will now 
scroll when presented with a line longer than 80 characters.

The control keys used by EDT are;  
     
     Right or Left Cursor Keys move the cursor one letter right 
  		  or left 

     CTRL Right or Left Cursor Keys move the cursor one word 
     	  right or left 

     CTRL Home Key moves the cursor to the first letter of the text

     CTRL End Key move the cursor to the last letter of the text

     Backspace Key performs a destructive backspace on the letter
     	  before the cursor

     Delete Key will delete letter at cursor location

     CTRL Backspace Key will delete from the cursor to the end of
          the line

     CTRL Pageup Key will make word at the cursor location all
          uppercase

     CTRL Pagedown Key  will make the word at the cursor location 
     	  all lowercase 

     All ASCII letters are inserted at the cursor location

     Return will replace the text line with the new one in the AutoCAD
     	  database and advance to the next text entity.

     CTRL Return will replace the text line with the new one in the
     	  AutoCAD database and proceed with the PREVIOUS text entity

     CTRL C key to abort the entire program, but all text entities
          previous replaced will remain

     ESC will return the current string being edited to the
          original string, works up until a Return or CTRL Return
          is pressed

If you have something else you would like to see in the program,
write  me a note and I'll see if I can shoehorn it in and give it
back to you.  

Enjoy this program and please distribute it unmodified (except as
discussed above) to others free of charge.