How are EDMACS and Vtedit different?

Both are screen editing packages written in TECO.  The first 
difference between the two is that Vtedit is designed as an editing
macro to be called from TECO, whereas EDMACS is designed to 
a complete standalone editor.  Since many Vtedit users had 
unintentionally found themselves in TECO,  Great pains were
taken while writing EDMACS to keep the user insulated from TECO.



                  Commands that Deal with single characters.

Vtedit and Edmacs both carry over a relic from TECO:
namely that lines are separated by a Carriage return/ Linefeed
combination. Vtedit requires two character motion commands to cross 
from the beginning of a line to the end of the previous line (or vice 
versa). The same is true for rubout. It is necessary for the Vtedit user
to type rubout twice to join lines;  once to eliminate the linefeed,
and the other to eliminate the carriage return. If he only uses one,
very strange screen behavior will occur.  Vtedit provides a 'seeall'
mode to help correct the problems this causes.

EDMACS provides a natural approach to carriage return/ linefeed
pairs.  They are treated as a single character.  To move from the end
of a line to the beginning of the next is a single command. EDMACS will
not permit you to get caught between a carriage return and linefeed.

                        Commands that deal with words

EDMACS tries to use the same keys for dealing with words that
it does with letters. For example,
	ESCAPE T is twiddle words because CONTROL T is twiddle letters
	ESCAPE F is forward word  because CONTROL F is forward letter 
	ESCAPE D is delete  word  because CONTROL D is delete letter 
etc...

Most of the commands that deal with words are ESCAPE something or
other. To force a word UPPERCASE, you would type ESCAPE U.

VTEDIT requires one to be more sure of what he is doing before he does
it than EDMACS.  All of the file handling commands (and some others
that you would not want to hit by accident) are preceded by CONTROL X.
Edmacs prompts you for confirmation in many places, and allows you
to cancel any prompting command (except for HELP SCREEN) with CONTROL G.

You are always asked for confirmation before an exit/save or before
switching files.

                                   Searches


EDMACS and Vtedit both have forward, reverse and repeat searches. Vtedit's
reverse search is accomplished via a negative argument.

EDMACS has punctuation searches: press ESCAPE followed by one of several
punctuation characters to be moved to the next (or last) occurrence of
that character. For example, "Escape ;" positions you just after the
next semicolon.

EDMACS provides a replace command with special features. Called 'Query
Replace' it can either replace all occurrences of one string with
another, ask you about each one it finds whether or not to replace it,
or a combination of both.

Vtedit has two types of 'cross page' search which EDMACS does not.

                           Executing TECO commands

VTEDIT allows you to enter and execute a teco command while in VTEDIT

EDMACS provides a 4 line window into teco in which you may prepare 
(using EDMACS editing commands) a command for execution.

                             Adding New commands

Vtedit provides the ability to remember a sequence of keystrokes to
be reexecuted. Only one sequence can be remembered at a time.

EDMACS allows you to interactively BIND any number of TECO macros
to arbitrary keystrokes.  These macros can be created while in EDMACS
or in your EDMACS init file.


                             User Initialization
Vtedit allows the user to set a few parameters in his TECO.INI file.

EDMACS allows the user to define new commands in his init file, and
bind them to any control keys, ESCAPE codes, or function keys he wishes
to.  All existing commands with the exception of the C-X commands may
be redefined to use whatever keys he wants for them. 

To enter Vtedit:
	           TECO/VT  filename.ext
To Enter EDMACS:
		   MU [44,12]EDMACS filename.ext

If you have a TECO.TEC file that knows about EDMACS, then you can
start EDMACS with:
		   TECO/E filename.ext

You can get a copy of this file by saying: PIP TECO.TEC=[44,12]TECO.TEC

Another main difference is with the commands used to deal with single
characters at the beginning of a line. EDMACS treats a CR/LF pair as
though it were a single character, while Vtedit treats it as two. So
in EDMACS, you only need one rubout to properly join two lines. If you
only use one in Vtedit, the display becomes very confusing. EDMACS prevents
you from getting caught between carriage return and linefeed.


	Command			EDMACS		Vtedit

Help Screen			ESC H SPACE	ESC H
Single Command HELP		ESC H I		-----

Forward Character		C-F		F4
Forward Word			ESC F		C-F
Back Character			C-B		F3
Back Word			ESC B		C-R
Next Line			C-N		F2
Previous Line			C-P		F1
Start of Line			C-A		ESC B
Start of Sentence		ESC A		----
End of Line			C-E		Backspace
End of Sentence			ESC E		----
Start of Buffer			ESC <		ESC G
End of Buffer			ESC >		ESC Z
Start of Next Line		C-N C-A		ESC D
Start of Previous Line		C-P C-A		ESC U
Rub out Character		RUBOUT		RUB OUT
Rub out Word			ESC RUBOUT	C-B
Delete Character		C-D		ESC K
Delete Word			ESC D		ESC C-B
Kill to end of line		C-K		C-D
Kill to start of line		ESC 0 C-K	C-U
Kill entire line		C-A C-K	C-K
Transpose Characters		    C-T		----
Transpose Words			  ESC T		----
Transpose Lines			ESC C-T		----
Uppercase word (LIKE THIS)	ESC U		----
Lowercase word (like this)	ESC L		----
Capitalize word (Like This)	ESC C		----
Center Line			ESC S		----
View Next Screen		C-V		ESC F2
View Previous Screen		ESC V		ESC F1
Search Forward			C-Z		ESC E
Search Reverse			C-R		????
Multi Teco-Page Search		----		C-N
Destructive Search		____		ESC C-N
Search Again			ESC Z		ESC S
Search for open parenthesis	ESC (		----
Search for close parenthesis	ESC )		----
Search for colon 		ESC :		----
Search for semicolon		ESC ; 		----
Search for comma		ESC , 		----
Search for period		ESC . 		----
Search for other special characters can be specified in EDM.INI
Query REPLACE			ESC C-R		----

Set Left Margin			----		n ESC M
Return with indent to match	LineFeed
 that of last non empty line
Set Mark			C-/		ESC V
				ESC SPACE
Wipe Marked Region		C-W		ESC P ESC \
Nondestructive Wipe
of marked region		ESC W		ESC P
Yank saved Text			C-Y		ESC R
Open Line			-----		ESC O
Insert Q-Register text		----		C-G q
Load Q-Register			----		C-X:q
Transfer text to Reg		----		C-T:q

Insert ASCII value		----		ESC I
Quote next char			ESC Q char	----
Insert ascii char		----			ESC value ESC
Advance Page			C-X   C-P		ESC W
Append Page			C-X   C-A		ESC   C-A
Append Page with 
formfeeds			----		C-A
Yank Page 			C-X   C-Y		C-Y
Inhibit Yank Protection		----		ESC   C-Y
Enable Yank Protection		----		ESC 0   C-Y
Bind Macro to Keystroke 	C-X #		------
Execute Macro			any keystroke	C-E q
Repeat Macro			ESC n " " 	ESC n ESC E q
Window into TECO		ESC ESC		----
   Allows preparing a teco command with the editing chars of EDMACS.
   The novice user is protected against accidental use of this command.
Teco Command prompt		----		ESC Q
   Similar to "Window into TECO", but the only editing characters are
   Rubout and C-U.
Re-execute TECO Command		ESC $		ESC ESC
Start/End Learning Mode		----		ESC L
Execute Learned Sequence 	----		ESC X
ReDraw Screen			C-L		C-W
Set Cursor Line			----		n   C-W
See-All Mode			----		C-V
Set Terminal			----		n   C-V
Screen Holding Mode		----		ESC   C-V
Word Delimiters			----		ESC T
Get Next Word			----		ESC N
Exit to TECO			c-x  Q		C-C or   C-Z
Exit and Save			c-x  C-Z	ESC   C-Z
Exit no save:			ESC  C-X C-Z	ESC   C-Z
Save and reedit:		c-x  C-V y CR	ESC F
Intermediate Save		c-x  C-W	ESC 1 ESC F
Marked exit			----		ESC 0 ESC F
Find Marked Position		----		ESC - ESC F
Back Over Last Operation	----		ESC J