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AA-K443A-TC

August 1981

150 pages

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Document:	Introduction to the EDT Editor
Order Number:	AA-K443A-TC
Revision:	0
Pages:	150
Original Filename:	http://bitsavers.org/pdf/dec/pdp11/rsts_e/V10/AA-K443A-TC_Introduction_to_the_EDT_Editor_Aug1981.pdf

OCR Text

Introduction
to the
EDT Editor
Order No. AA-K443A-TC

mamaamo

wore

introduction
to the
EDT Editor
OrderNo.AA-K443A-TC

August 1981
This tutorial manual, which complements the EDT Editor Manual, contains brief descriptions of the basic features of EDT. The manual is
based on sample keypad, line, and no keypad editing sessions.

SOFTWARE VERSION:

EDT

V2.0

digital equipment corporation, maynard, massachusetts

The information in this document is subject to change without notice and
should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any
errors that may appear in this document.
The software described in this document is furnished under a license, and
may only be used or copied in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment that is not supplied by DIGITAL or its affiliated companies.

The postage-paid READER'S COMMENTS form on the last page of this
document requests your critical evaluation to assist us in preparing future
documentation.

The following are trademarks of Digital Equipment Corporation:
DEC
DECUS
DECnet
PDP
UNIBUS
VAX

VT
DECsystem-10
DECSYSTEM 20
DECwriter
DIBOL
EduSystem

lAS
MASSBUS
PDT
RSTS
RSX
VMS

Contents
Page

Chapter I

Concepts
Using This Manual
Purpose .
Scope . . . .
Audience . .
Terminology
Organization
Using EDT . . . .
Buffers and Files
EDT on Your System
A Note to lAS Users

Chapter II

1-1
1-1
1-1
1-1
1-1
1-2
1-3
1-4
1-5
1-7

Keypad Editing
The Keypad and Key Symbols
The GOLD Key . . . . . . .
Session 1 . . . . . . . . . . .
Starting Keypad Editing
Inserting Text . . . . .
Using the Help Facility .
Moving the Cursor
Setting the Direction of Cursor Movement
Saving the Text as a File
Session 2 . . . . . . . . . . . . . . .

2-1
2-2
2-3
2-3
2-4
2-5
2-7
2-11
2-13

2-14
2-14
2-15
2-16
2-17
2-20
2-23
2-27
/

Editing a File . . . . . . . . . .
Refreshing the Screen (CTRL/W)
Adding to the Buffer
Moving Text
Locating Text . . . .
Substituting Text . .
Updating the Existing File
Session 3 . . . . . . . . . . . .
Editing the New File . . .
Deleting and Reinserting by Character
Deleting and Reinserting by Word
Deleting and Reinserting by Line . . .
Restoring Your Work After a System Failure
Ending the Session Without Saving Your Work

2-27
2-27
2-28
2-30
2-32
2-36
2-38

iii

Chapter III Line Editing
Session 1 . . .
Starting a Line Editing Session
Inserting Text . . . . .
Correcting Mistakes . . . . . .
Using the Help Facility . . . .
Line Numbers and .Range Specifications
Displaying Text . . . . .
Saving the Text as a File
Session 2 . . . . . . . . . . .
Editing a File . . . . . .
Refreshing the Display of Text
Adding to the Buffer . . . . .
Moving and Resequencing Lines
Locating Text . . . . . . .
Substituting Text . . . . .
Updating the Existing File
Session 3 . . . . . . . . . . . .
Editing the Updated File .
Deleting and Replacing Text
Restoring Your Work After a System Failure
Ending the Session Without Saving Your Edits

3-1
3-2
3-2
3-3
3-5
3-6
3-6
3-8
3-8
3-8
3-8
3-9
3-11

3-13
3-15
3-16
3-16
3-16
3-17
3-18
3-19

Chapter IV Nokeypad Editing
Session 1 . . . . . . .
Starting a Nokeypad Editing Session
Entering Commands
Inserting Text . . . . . . .
Using Entities and Counts
Moving the Cursor
Setting the Direction of Cursor Movement .
Saving the Text as a File

4-2
4-2
4-3
4-4

Session 2 . . . . . . . . . . . . .

4-6
4-8
4-12
4-13

Editing a File . . . . . . . .
Refreshing the Screen (REF)
Adding to the Buffer
Moving Text
Locating Text . . . .
Substituting Text . .
Updating the Existing File

4-13
4-14
4-15
4-16
4-20
4-22
4-24

Session 3 . . . . . . . . .
Editing the New File
Deleting Text . . . .
U ndeleting Text . . .
Restoring Your Work After a System Failure
Ending the Session Without Saving Your Edits

4-1

4-25
4-25
4-26
4-27
4-29
4-31

Chapter V

Advanced EDT
Session 1 . . . . .
Merging Files and Inserting Text
Moving Text into Buffers
Writing to a File
Session 2 . . . . . . . . . . .
The SET and SHOW Commands

5-1
5-1
5-5

5-9
5-10
5-10

Session 3 . . . . . . . . . . . .

5-12

The Startup Command File

5-12

Session 4 . . . . . . .
Redefining Keys

5-14
5-14

Index
Figures
1-1:
2-1:
2-2:
2-3:
2-4:
2-5:
3-1:
5-1:

Creating and Editing Files with Buffers
VT52 Keyboard and Keypad .
VT100 Keyboard and Keypad
VT52 Keypad Help Diagram .
VT100 Keypad Help Diagram
Sample Key Description . . .
Help Text . . . . . . . . . .
Sample Text in the Main Buffer

1-4
2-1
2-1
2-5

2-6
2-6
3-5
5-3

Commercial Engineering Publications typeset this manual using DIGITAL's
TMS-ll Text Management System.

CHAPTER I.

CONCEPTS

Using This Manual
Purpose
Scope
Audience
Terminology
Organization

Using EDT
Buffers and Files
EDT on Your System
A Note to lAS Users

Chapter I.

Concepts

Using This Manual
This section describes what you need to know to use this manual.
Purpose

This manual teaches users with little or no computer experience how to edit
text with the EDT editor. The manual is intended as a complement to the
EDT Editor Manual, which is a complete source of information about EDT.
Scope

The manual describes the basic EDT editing functions by guiding you
through sample editing sessions. It is not intended to describe EDT in its
entirety.
Audience

This manual is written for anyone who wants to learn EDT. Users must
have access to a terminal and must be able to log in to a system with EDT
V2.0.
Terminology

You will encounter the following terms when using this manual:
Buffer

A temporary storage area for data. In EDT you edit text in a
buffer and then decide whether to save your work as a file or
to delete it.

CTRL

The control function, used frequently in the manual in the
combinations (CTRL/Z ) and (CTRL/Wl.
To use the control function, hold down the keyboard key
labeled CTRL and press another key, such as "W" for (CTRL/Wl.

1-1

Editor

A program on a computer system that lets you create and
modify text. EDT is an editor.

Command

An instruction you type at a terminal or include in a command file that requests the computer to perform a welldefined procedure. For example, INSERT is a command used
in line editing to allow the insertion of text.

Cursor

The position marker in your editing session. On video terminals, the cursor is displayed on the screen. On hardcopy terminals, EDT "remembers" the cursor location.
In this manual the cursor is shown as a rectangle:
CPR

relies

.~.

The cursor may look different on your system; for instance,
it may be an underscore.
EDT

The DIGITAL standard editor.

File

A collection of data stored in the computer.

Function

A keypad editing operation that EDT performs when you
press a keypad key.

Keyboard

The set of keys on the terminal that resembles the keyboard
of a typewriter. The keyboard is sometimes referred to as
the "main keyboard" to distinguish it from the smaller
keypad.

Keypad

The set of keys to the right of the keyboard. This manual
describes the keypad for VT52 and VT100 terminals.

(0)

Symbol for the key labeled RETURN. The RETURN key
terminates lines and commands.

Text Entity

A string of characters that EDT recognizes as a unit, such as
a word or line.

After you become familiar with the exercises in this manual, you can refer
to the EDT Editor Manual for detailed information about EDT.

Organ ization
This manual is divided into five chapters:

1-2

CONCEPTS - introduces the manual and the features of EDT, and
compares the three methods of editing: keypad, line, and nokeypad.

II.

KEYPAD EDITING - describes the keypad, the GOLD key, and keypad functions. You press keypad keys to perform most editing
functions.

Concepts

III.

LINE EDITING - explains how to enter line editing commands. In
line editing, you modify text using numbered lines.

IV.

NOKEYPAD EDITING - shows you how to enter nokeypad editing
commands. Nokeypad editing is similar to keypad editing, except
that you type commands instead of pressing keypad keys to edit text.

ADVANCED EDT - presents advanced editing techniques, which
are described fully in the EDT Editor Manual. The examples show
how to merge the files created in Chapters II, III, and IV into one file.
Chapter V also shows how to work with multiple buffers and startup
command files, and how to redefine keys.

Chapters II, III, and IV each contain three sessions that you can follow at
your terminal. The sessions show you how to create and edit files, clear the
screen, and end sessions with and without saving your work. Try each
method of EDT editing that your terminal allows and then choose the one
you prefer. The text used in the sample sessions is from a report on CPR
(Cardio-Pulmonary Resuscitation), a lifesaving technique. The text is not
intended to teach CPR.
If you have a VT52 or VT100 terminal, you can practice EDT with all the
sessions in this manual. If you have a hardcopy terminal, try the sessions
in Chapter III and Session 1 of Chapter V.

It takes approximately three hours to complete the sessions in this manual.
The sessions are designed so that you can work through each session
individually.

Using EDT
EDT is DIGITAL's standard text editor. EDT gives you a choice of three
ways to edit, depending on your terminal and your editing preference:

Keypad editing is available on VT52 and VT100 terminals. It allows you to
display up to 22 lines of text on the screen. With keypad editing, you move
the cursor directly to the text you want to modify. Then you press one or
two keys to move the cursor and edit text.
Line editing is available on all terminals. You enter line editing commands
after an asterisk prompt (*) and edit text using numbered lines.
Nokeypad editing is available on VT52 and VT100 terminals. With nokeypad editing, you can display up to 22 lines of text on the screen. You enter
nokeypad commands from the main keyboard to move the cursor and edit
text.
EDT provides many useful features:

• Help facility - You can use the help facility at any time during your
editing session to get detailed information about a command.

Concepts

1-3

• Buffer recovery after system failure - Occasionally the computer may
"crash" (as in the case of power failures) and operations temporarily stop.
EDT keeps a record of your work during an editing session in a journal
file, so you can recover your edits when the computer system resumes
operation .
• Startup command files - You can create files of EDT commands that
affect other editing sessions. If your startup file includes a command that
specifies keypad editing, for example, your next editing session automatically begins in keypad editing.
• Multiple buffers - You can divide text into storage areas called "buffers."
This is especially useful when you are merging parts of several files .
• Redefining keys - You can redefine most of the keypad editing keys to
perform other functions. You can also extend the capabilities of the keypad by defining combinations of keypad and main keyboard keys to perform special functions. Thus, you can tailor EDT to meet your needs.

Buffers and Files
Files are kept in a "mass storage" area of the computer. This means they
remain on a disk, tape, or other device until someone at a terminal deletes
them. By comparison, the buffers you work with in EDT store text only for
the time of your editing session. You do not edit a file itself, but a copy of a
file that EDT places in the main text buffer.
When you edit with EDT, you either type in new text or modify a copy of a
file. During an editing session, this text is stored in the main buffer. At the
end of an editing session, you decide whether or not to save the main buffer,
which contains your work, as a file. Figure 1-1, parts A and B, illustrates
this procedure:

A. CREATING A FILE:

START
EDT

";"~ ~~NN~TER
TE~:;= ""::
INTO A

'--------'

BUFFER

:... ............... ...........

r-----.~

SAVE
YOUR
WORK

FILE
CREATED

DELETE
YOUR
WORK

NO FILE
CREATED

EDIT IF
DESIRED

::::;:;:;:;::::::::::::::::::::::::::::::::;:::;:;:;:;:::::::::::::;:::;:;:;:::;:;:::;::.

Figure 1-1:

1-4

Concepts

Creating and Editing Files with Buffers

B. EDITING A FILE:
SAVE
YOUR
WORK

FILE
UPDATED

DELETE
YOUR
WORK

ORIGINAL FILE
REMAINS UNCHANGED

START
EDT

Figure 1-1:

Creating and Editing Files with Buffers (Cont.)

Most EDT commands are used for editing, so they affect buffers. By contrast, the commands INCLUDE, WRITE, and EXIT operate on files .
After starting an editing session, you can use the INCLUDE command to
move text from other files into a buffer. WRITE copies text from a buffer
into a file outpide of EDT without ending your editing session. After editing
the text in the main buffer, you can save the text as a file with EXIT.

EDT on Your System
This manual can be used with any system that has EDT V2 .0. However,
two differences between systems can affect the way you start EDT:
1.

The system prompt - Each computer system has a prompting symbol,
but the symbol varies. Some examples of system prompts are $, MCR>,
Ready, and PDS>.
This manual uses the hand symbol (lIT) to represent the system prompt
on all computer systems. The prompt appears only in the command line
that starts EDT and reappears after EDT exits back to the operating
system.

The command line - This manual uses the command EDIT/EDT to start
EDT. Note that what you type appears in red:
u

edit / edt fi lenarlle (BIT)

If this doesn't work on your system, use the EDT command:
lIT edt filenarlle (BIT)

Concepts

1-5

If there are other people who log in to the same account, there are two
kinds of files you should look for when you are ready to use EDT. First, if
there is an EDTINI.EDT file, your editing session could be affected by the
commands it contains. You can either rename the file, using the rules that
apply to your system, or you can use the INOCOMMAND qualifier to
prevent the file from affecting your editing session. Suppress this file by
including the INOCOMMAND qualifier in the command line that starts
EDT:
IT edit/edt/nocorllllland filenarlle

Again, if this doesn't work on your system, type:
IT edt/nocorllllland filenarlle

The INOCOMMAND qualifier suppresses EDTINI.EDT without deleting it.
Of course, the INOCOMMAND qualifier is not necessary if the file
EDTINI.EDT does not exist in your account.
The second kind of file to look for is a file with the same name as the one
you are preparing to create. If this is the case, you can assign a different
name to your file, as long as you use it consistently.
For example, the first file you create with this manual is named CPR.DAT.
If someone in your account has already created a file named CPR.DAT,
simply assign a different name to the file, according to the rules for naming
files on your computer system.
If the sample sessions do not work as shown, perhaps your system has a
different method for starting EDT. In this case, ask your system manager if
EDT V2.0 is available, and if the command line you are using to start EDT
is appropriate. (However, most users will not encounter this problem.)
One final point about using EDT on your system: EDT allows both uppercase and lowercase text. Most users will find that the text they enter looks
as shown in the examples. However, VT52 and VT100 terminals on some
systems (lAS, for example) begin line editing using uppercase text by default. You can change this default by entering a command line that your
system recognizes to allow both uppercase and lowercase.
For example, lAS users would type one of the following command lines,
depending on their system prompt:
PDS> SET TER LCI

(8tlJ

MCR> TER/LOWERCASEINPUT (8tlJ

For command lines that work on your system, consult your system manager
or check your system documentation.

1-6

Concepts

A Note to lAS Users
If you are using a system with lAS software, then the file recovery procedure differs from that of other systems. This difference applies to the keypad, line, and nokeypad sections that describe file recovery.
Instead of typing the command line shown for other systems to recover
files, you would use one of the following formats, depending on your system's prompt:
PDS> edit/edt/recover filenaMe (@)
MCR> edt filenaMe/recover (@)

The filename you enter in the command line is CPR.DAT in keypad editing, AIRWAY.DAT in line editing, and BC.DAT in nokeypad editing.

Concepts

1-7

CHAPTER II.

KEYPAD EDITING

The Keypad and Key Symbols
The GOLD Key
Session 1
Starting Keypad Editing
Inserting Text
Using the Help Facility
Moving the Cursor
Setting the Direction of Cursor Movement
Saving the Text as a File

Session 2
Editing a File
Refreshing the Screen (CTRUW)
Adding to the Buffer
Moving Text
Locating Text
Substituting Te~t
Updating the Existing File

Session 3
Editing the Updated File
Deleting and Reinserting by Character
Deleting and Reinserting by Word
Deleting and Reinserting by Line
Restoring Your Work After a System Failure
Ending the Session Without Saving Your Work

•

,
•. ; \ ,
...:-

-...:.

':..~~.,:"

.. " .. 4,.. \ / ' ,

~,o_O' ~:,,;:J:: :~-,
..

... ~ '"_ "':...- ....... '", ....... --':.., ............... '

... "~ _~l._l..

~ ~;~ .~~~
~"_:;"~-:-.,..
.~~

VT52 TERMINAL

VT100 TERMINAL

PF1
GOLD

PF2
HELP

PF3
FNDNXT

PF4
DEL L

FIND

UND L

9
APPEND
• ~CE

GOLD

HELP

DEL L

UND L

REPLACE

DELW

' .... XT

DELW

UNDW

IJNDW

DOWN
SECT

~
-

Chapter U.

Keypad Editing

Keypad editing, which is screen-oriented, is available on VT52 and VT100
terminals. A screen-oriented editor allows you to see several lines of text at
once and move the cursor throughout the text in any direction.
You move
cursor to the text you want to edit and perform most editing
functions by pressing keypad keys. function is the editing command that
EDT performs
you press a key.
insert text by typing from the
rl18.in keyboard.

The Keypad and Key Symbols
The keypad, shown in Figures 2-1 and 2-2, is the set of keys at the right of
the main keyboard:

Figure 2-1:

VT52 Keyboard and Keypad

Figure 2- 2:

VT100 Keyboard and Keypad

2-1

Most of the keypad keys have two functions . You can use keypad functions
as soon as you start keypad editing, as you will see in Session 1. Turn back
to the Keypad Editing tab page and put the appropriate keypad card on
your terminal. You may find the card helpful as you work through the
exercises.
This chapter denotes keypad functions with colored key symbols. VT52 key
symbols are brown and VT100 key symbols are red.
The characters printed on the keys are in the upper left of the key diagram.
For example, the ADVANCE and BOTTOM functions are associated with
the keypad key labeled "4":
4ADVANCE

rt ADVANCE

EtbtloM)

~Q"I"'I"QM r

If you are asked to press two keys in succession, as you would do when
using the PASTE function, the key symbols look like:

1:~.

:.~.: +

:F
.:•.. :•.:1
:•. .a.•·:.·.::.·:.:·:.·o.: :.•.: •:. •.:.:.:L:•. :.•:•. :D
.:.·.:·:•. :.•:•. :.• .: :.•:.:•.:• .: •:..:..:.•: . • :. .

:p.::.. ·:•..
.. :•.

CUT
Ii)A~
...

The GOLD key and the PASTE function are explained in detail later.

The GOLD Key
The GOLD key allows you to use the lower of two functions on a keypad
key.

NOTE
GOLD is a function in keypad editing. The actual key is blue
on the VT52 keypad. On VT100s, the GOLD key is labeled
PF1.
Most keypad keys have two functions, so you press the GOLD key first and
then a selected key to get the lower, or "alternate," function . You do not
need to hold down the GOLD key.
For example, on the keypad key labeled 4, ADVANCE is the standard
function and BOTTOM is the alternate. You must first press the GOLD key
to use the BOTTOM function, which moves the cursor to the end of the
buffer:

~.~:.:.

:.~.:.:. + ijqnOMU

•.:.:•:.:.:•:.•.:•:.•.:•:•. :•. .:G
.:•.:•.:•.:•.:•.:o
.•:•. :.•. .:'.•·.::..·•.::D. .:•.:·•.::•.:•.:•.:• •.:•.:•.:.:..

2-2

Keypad Editing

4 ADV ANCE

r
Session 1

I[e

7LJl

This session describes how to insert text into the main buffer, move the
cursor, and write the buffer contents to a file.

Starting Keypad Editing
Type -the following command line to start an EDT editing session. If you
end the session with the EXIT command, which saves your work, EDT
saves the contents of the buffer in a file named CPR.DAT. Notice that it
does not matter whether you type this command line in uppercase or
lowercase:

edit/edt cPf.dat (Bill
Input file does not exist

[EOBJ

* ,:,: :

The message "Input file does not exist" means that there is no file named
"CPR.DAT" in your account. The cursor appears after the asterisk.
Type "c" for the CHANGE command after the asterisk to start keypad
editing:

Keypad Editing

2-3

The screen clears and the cursor moves to the [EOB] (End-Of-Buffer)
symbol:

(EOBJ

EDT always displays the [EOB] symbol after the last character in the
buffer. The [EOB] symbol is now positioned at the upper left because the
buffer is empty.

NOTE
If keypad editing does not seem to work as shown in the
examples, your terminal may be set incorrectly. If so, exit
EDT (press (CTRL/Z ) and type QUIT) and set your terminal as a
VT52 or VT100, according to the rules for your
system.
When you restart EDT, type SET TERM VT52 or SET TERM
VT100 after the asterisk prompt, depending on your terminal. You must set a VT52 as a VT52 and a VT100 as a
VT100.

Inserting Text
You enter text in keypad editing by typing from the main keyboard. Enter
the following paragraph exactly as shown. Press the key labeled DELETE
if you make a mistake. (In keypad editing, you can use DELETE even after
you press the RETURN key to delete text on the previous line.) Notice what
happens to the cursor and the [EOB] symbol as you insert text:

CPR relies on a m
combination of rescue breathing and cardiac
cortlPressions. Rescue breathing. or
mouth-to-mouth resuscitation. int)olt)es
filling the victir!l's lungs "'ith air.
increasing the let)el of ox>'gen in the blood
strearll. Cardiac corllpressions applied to the
chest then force this blood through the
circulatory system. S

m
m
m

[EOBJ

2-4

Keypad Editing

m
m
m

Using the Help Facility
The help facility provides information about keypad functions. Press the
HELP key as shown. This does not affect the text you just typed. You can
use the help facility at any time during the editing session without affecting your edits.

L.-J
The screen clears, and then EDT displays the keypad diagram and descriptions of control functions . Figure 2-3 shows the help diagram for the VT52 ;
Figure 2-4 shows the VT100 diagram:

DEL

Delete character

r-----r-----l-----r- - ---'
I

Delete to beginning

BACK SP

Move to beginning of 1 in e

CTRL I A

Compute tab 1 e ,-' e 1

CTRL I D

Decrease tab

1 e ,-' e 1

I
I
I

I
I

GOLD

HELP

I
I

:
I

DEL L I
UP
I
I
I
UND L I REPLACE:
I
I

~-----+------~-----~------,
I
I
I
I
I
I PAGE I FNDN)<T I DEL W I
DOWN
I
I

I COMMAND I
I
I

FIND

lUND W :
I
I

SECT

RIGHT

I
I

~-----~------~------~- ---~I
I
I
I

CTRL IE

Increase tab 1 e ,-' e 1

CTRL I F

Fill text

: ADI.JANCE I BACKUP

DEL C I

I BOTTOM I

lUND C I SPEC INS I

~ -- - - -1-- -- - ~ -- - I

CTRL/K

TOP

Define Key

WDRD

EOL

I
I

Adjust tabs

CTRL/Z

Return to line mode

CUT

-+ ---- --1
I

LEFT

I
I

I CHNGCASEI DEL EOL I PASTE : APPEND I
I
I
I
I
--~--- - -~-~
I
I
I
:
LINE
I SELECT I ENTER I
I
I
I
I
I
DPEN LINE
I
RESET I
SUBS
:
IL _ _ _ _ _ _ _ _ _ _ _
I _ _ _ _ _ .J..
I _____ J

,----_._--

CTRL/T

I
:

*** For help on a Key. press the Key.
*** To exit. type a space.

Figure 2-3:

VT52 Keypad Help Diagram
Keypad Editing

2-5

r-----r-----,-----r-----'
I

I
I

Do,.'n

I
I ... __ __
I
1
Left
I

___ _•

I·

I
I
I

I
I R19ht I
Up
Y
L _____
lI ______
l _____ ~I ______ JI

I
I

iii
. .:-...:...:·.:-----I-F~,~~: r------:
H~El~l
~1 __ 2__ B
L__ _
T
.!.

I:: I ·

He 1 p

1
I

Delete
Linefeed
Bac f, s pac e
CTRL I A
CTRL 10
CTRL IE
CTRL/K
CTRL IT
CTRL I W
CTRL I Z

Sect

Rubout character
Rubout ,.'o rd
Backup to belinning of line
COMPute tab level
Decrease tab level
Increase tab level
Define f,e,'
Adjust tabs
Refresh screen
Return to line Mode

Type a key for help on that key.
To exit. type a space.

Figure 2-4:

VT100 Keypad Help Diagram

If you then press another of the keypad keys, EDT displays specific information about that key, If you press the FIND/FNDNXT key, for example,
the display looks as shown in Figure 2-5:
PF3

8 FNDNXT

FNDNXT

fiNO >

i/ fINP/<

The FIND NEXT key searches for the next occurrence of the search string
entered by the FIND Key. Th e direction of the search is the current
direction Mode (ADVANCE or BACKUP).
The FIND Key searches for an occurrence of a string. Press the FIND
Key and then enter the string frOM the Main Keyboard . End the string
by pressing either the ADVANCE or BACKUP Key to set the direction of
the search.
To return to the Keypad dialraM. press the return Key
For help o n another Keypad Key. press the Key
Toe x i t fro III HE L P. t y pea spa c e

Figure 2- 5: Sample Key Description
2-6

Keypad Editing

At this point you can:

• Press rml to return to the help diagram
• Press another key to read the description of its functions
• Press the space bar to resume your editing session

Press the space bar to resume the editing session. The cursor returns to the
end of the buffer, which was the cursor location when you pressed the
HELP key:

CPR relies on a
cOMbination of rescue breathing and cardiac
cOMPressions. Rescue breathing. or
Mouth-tO - Mouth resuscitation. involves
filling the victiM'S lungs with air.
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM.%

[EOBJ

Moving the Cursor
There are several ways to move the cursor in keypad editing. You can move
it to the beginning of the buffer with the TOP function:

5 BACKUP

U T(#(
Keypad Editing

2-7

GPR relies on a
of rescue breathin~ and cardiac
cOMPressions. Rescue breathin~, or
Mouth-tO-Mouth resuscitation, involves
fillin~ the
victiM'S lun~s with air,
increasin~ the level of oxy~en
in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood throu~h the
circulatory SysteM.

~oMbination

[EOBJ

When you press the LINE function key twice, the cursor moves down
two lines:
o LINE

QP~~bN~

o LINE

QP~N.UN~

o LINE

Qij~f.JWN~

+ OfJf:NUNf:

.......................

CPR relies on a
cOMbination of rescue breathin~ and cardiac
£oMPressions . Rescue breathin~, or
~outh-tO-Mouth resuscitation, involves
fillin~ the
victiM'S lun~s with air,
increasin~ the level of oxy~en
in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood throu~h the
circulatory SysteM.

[EOBJ

2-8

Keypad Editing

When you press the EOL function key, the cursor moves to the end of t he
current line:
2

EOL

OeiEOt.U

EOL

.......................

OEtEOL

.......................

CPR relies on a
combination of rescue breathin~ and cardia c
compressions. Rescue breathin~, orG
mouth-to-mouth resuscitation, involves
fillin~ the victim's
lun~s with air,
increasin~ the
level of oxy~en in the blood
stream. Cardiac compressions applied to the
chest then force this blood throu~h the
circulatory system .

[EOBJ

When you press EOL again, the cursor moves to the end of the next line:
2

EOL

dii'~Q'

EOL

p~ij~oM

CPR relies on a
combination of rescue breathin~ and cardiac
compressions. Rescue breathin~, or
mouth-to-mouth resuscitation, involves0
fillin~ the victim's
lun~s with air,
increasin~ the
level of oxy~en in the blood
stream. Cardiac compressions applied to the
chest then force this blood throu~h the
circulatory system .

[EOBJ

Keypad Editing

2-9

Use the up arrow and left arrow keys to move the cursor up and back :

L UP
ijij@AO~)

t UP

R~riAC~

LEFT

APe§~9>

CPR relies on a
COllI bin a t ion 0 f res cue b rea t h i n 9 and c:a::r d i a c
cOMPressions . Rescue breathing . or
Mouth-tO-Mouth re s uscitation . involves
fi ll in g t he vi cti M' S lung s with ai r .
increasing the level of oxygen in the blood
st r ea M. Ca r dia c cOMP re s s ions appli e d to the
c hest then force this blood through the
circulator y Sys t e M.

[EOBJ

If the cursor is at the end of a line when you press the right arrow key, the
cursor moves to the beginning of the next line. The down arrow moves the
cursor down:
2

EOL

:-:.:-:-:-: .:.:-:.:.:.: -:-: -:.:.:.:.: .: -:-:.: +
P~I..~91..>

--RIGHT
. .. ... .... .. ..... . . . ..

$P~¢IN$

--RIGHT

$~$¢IN$ ·

l DOWN

:.:.:.:-:.:.:.;.;.:.: -:< -:.:.;.:-:.:.:.:.:.:
+ :>
::::stct«
.......
... .... ... .

EOL

....... . . . ....... . . . . .

p~b~Qb

CPR relies on a
cOMbination of rescue breathing and cardiac
cOMPressions. Rescue breathing . or
Ili:8;:u t h - t 0 - III 0 u t h res usc ita t ion . in') 0 1 '.I e s
filling the victiM'S lungs with air .
inc r easing the level of oxygen in the blood
streaM . Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM .

[EOBJ

2-10

Keypad Editing

You can also move the cursor by entities of text, such as characters and
words. (A "word" in EDT is a string of characters that are not interrupted
by a space.) On a VT100 you can use the CHAR function. There is no CHAR
function on the VT52 keypad; the function is performed with the left or
right arrow key.
-RIGHT

WORD

$pkCM$U + 8.HN$¢A~~
3

CHAR

$~eqlN$

+C:M~~qA$it

WORD

¢6ij~gA$~

WORD

........... . .........

¢HNq9#§$

CPR relies on a
co~bination of
rescue breathin~ and cardiac
co~pressions.
Rescue breathin~1 or
111 0 u t h - t 0 - 111 0 u t h res usc ita t ion I a::n '.. 0 I '.. e s
fillin~ the victi~'s lun~s wiih airl
increasin~ the level of oxy~en
in the blood
strea~.
Cardiac co~pressions applied to the
chest then force this blood throu~h the
circulatory syste~ .

[EOBJ

Setting the Direction of Cursor Movement
The BACKUP and ADVANCE functions determine whether the cursor
moves to the left and up, or to the right and down, in keypad functions that
require cursor movement. Although BACKUP and ADVANCE set the
direction of subsequent operations, they do not affect the appearance of the
screen.
Use BACKUP to set the direction towards the beginning of the buffer:
5 BACKUP

5 BACKUP

Keypad Editing

2-11

No changes take place on the screen. However, now try the WORD and
LINE functions to see the effect:
1

WORD

BI-tNd~A$~
1

WORD

¢ijNM:iA~~

¢HNQ¢A$g
1

WORD

+ . . . . . . . . . . . .. . . . . . . ... . .

WORD

LINE

Qij~NUN~
o

LINE

+ QB~~Q*$~

o LINE

+ . . . . . . . . . . . . . . .. ... . . . .. .

Qi?itfUNI:
o

LINE

+ OpeN ttN~

CPR relies on a
::i:(o III bin a t ion 0 f res cue b rea t h i n g and car d i a c
~~Mpressions. Rescue breathing , or
Mouth-tO - Mouth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions a p plied to the
chest th~n force this blood through the
circulatory SysteM.

[EOBJ

Now use the ADVANCE function to reset cursor direction to the right and
down:
4ADVANCE

4ADVANCE

eorroM

:.:.:.:.;.:.:.:.>:.:.:.:.:.:.:.:.:-:-:.:.:.:.

·.· sorrolii! >·
.....................

ADV ANCE and BACKUP also affect the direction of operations such as
SECTION, FIND, and FNDNXT (Find Next), which are described later.
You can move the cursor by 16-line sections with the SECTION function. If
there are fewer than 16 lines between the cursor and the beginning or end
of the buffer, EDT moves the cursor to the beginning or end and displays a
message:

I ~~I J

2-12

Keypad Editing

+ . .~. . . . .DOWN
. . . . . ... . . . . .. . ..
• r ijij¢f • • >·

SECT

5 BACKUP

:.~: + .J~C:>\f\I~
· / $e.cb <

+ .•:.•.•:.•:.:.•.• •:·:..:•

.
: :. G
:.·.·: ·.•• ·:: :.O. :: :.• ·::.: .::.:.l ::.:.·.:: .•:·.:: O.•
: ::·:..•::.:.•
:: •.•.•
:.:.:
..•
::.:
..•
:: .• . :•. :•

SECT

The message does not mean that you made a mistake. EDT is simply telling
you that the cursor could not move a full 16-line section.

Saving the Text as a File

•

To save the edited text, press the GOLD and COMMAND function keys:
.... .. .............

f'f::t

............................................

PAGE

>~~3B r + ¢6MM#NP

EDT displays a prompt at the bottom of the screen and moves the cursor
after the prompt:
Corllllland:

Type the EXIT command to save the edited text. (It does not matter
whether you use uppercase or lowercase type.) Then press the ENTER key,
which is the same key on the VT52 and the VT100:
ENTER

COhlllland:

exit

ENTER
SUBS

NOTE
Be sure that you press the ENTER function key and
not (ill) when you end an editing session. Often people
press (ill) by mistake, which prints ('''M'' after the Command:
prompt (or after any characters following the prompt). If you
press (ill) after the prompt, press the DELETE key to remove the"" M" and then press the ENTER key.
The system displays a message telling you how many lines are saved in the
new file CPR.DAT, which you named at the start of the editing session.
Keypad Editing

2-13

r
Session 2
)"LJ"]

Ire

This session describes how to clear system messages from the screen, add
text to the buffer, and perform other editing functions.

Editing a File
Keypad editing works the same whether you create a new file or edit an
existing one. Enter the following command line to start EDT and edit
CPR.DAT:

edit/edt cpr.dat
~~R

(ill])

relies on a

Enter "c" for the CHANGE command to resume keypad editing:

cpr.dat (ill])
CPR relies on a

The contents of CPR.DAT are displayed on the screen, and the cursor is
placed at the upper left:

:cP R rei i e son a
60mbination of rescue breathing and cardiac
compressions. Rescue breathing, or
mouth-to-mouth resuscitation, involves
filling the victim's lungs with air,
increasing the level of oxygen in the blood
stream. Cardiac compressions applied to the
chest then force this blood through the
circulatory system.

[EOBJ

2-14

Keypad Editing

Refreshing the Screen (CTRLlW)
Sometimes another user may send you a message during your editing session. These messages do not become part of the buffer contents, but they
affect the appearance of text on the screen. For example:

CPR reI i e son a
ciombination of rescue breathin~ and cardiac
compressions. Rescue breathin~ , or
mouth-to-mouth resuscitation, involves
MESSAGE FROM BURNS : Want to carpool
to the EMT meetin~ toni~ht?~en in the blood
stream. Cardiac compressions applied to the
chest then force this blood throu~h the
circulatory system.
[EOBJ

EDT clears, or "refreshes," the screen when you press [cTRL/wl.Hold down the
key labeled CTRL and press the W key on the keyboard:

The screen goes blank and then the buffer contents reappear:

,CP R reI i e son a
>60 III bin a t ion 0 f res cue b rea t h i n ~ and car d i a c
compressions. Rescue breathin~, or
mouth-to-mouth resuscitation, involves
fillin~ the victim's
lun~s with air,
increasin~ the level of OKy~en
in the blood
stream. Cardiac compressions applied to the
chest then force this blood throu~h the
circulatory system.
[EOBJ

Keypad Editing

2-15

Adding to the Buffer
The text you insert is always entered before the cursor. To add a paragraph
at the end of a buffer, first move the cursor with the BOTTOM function:
4ADVANCE

4ADVANCE

$QrtdAA

ijqrTPM

CPR relies on a
combination of rescue breathing and cardiac
compressions. Rescue breathing, or
mouth-to-mouth resuscitation, involves
filling the victim's lungs with air,
increasing the level of oxygen in the blood
stream. Cardiac compressions applied to the
chest then force this blood through the
~. i rculatory system.

{EOBJ

The cursor appears over the [EOB] symbol.
Now insert a blank line before the cursor by pressing 00 . (The blank line
separates the existing text from what you type at the end of the buffer.)
Enter the following paragraph, and then insert another blank line with the
OPEN LINE function:

Shortl)' after cOlrlPleting his nOl.lel "A Death in (Bill
the Falrlily," Jalrles Agee hailed a taxi in Ne'., (Bill
Yorf~. He '.las dead before reaching his (Bill
destination, the victilrl of a heart attacf~. (Bill
Had the cab dril.ler f~no,.I1-' CPR, (Bill ....
Agee's life frlight hal.le been sal.led .".

[EOBJ

2-16

Keypad Editing

o LINE

QPI:NUN~

.II1II
.. ....... .
..... ........................................

PF~QL~

LINE

+ .:.:.:.:.:.»:.:««.;.;.:.:.:.:.:.:-:.
QP~ijUt'JE

.CPR relies on a
cOMbination of rescue breathing and cardiac
cOMPressions. Rescue breathing, or
Mouth-tO-Mouth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM.
Shortly after cOMPleting his novel "A Death in
the Falllily," Jallles Agee hailed a taxi in NelAI
York. He was dead before reaching his
destination, the victiM of a heart attack.
Had the cab driver known CPR,
Age e 's I i f e III i g h t h a I) e bee n s a '.I e d • } :
[EDElJ

Notice that the cursor does not move when you use the OPEN LINE function. Unlike m , which inserts a blank line and moves the cursor, OPEN
LINE inserts a blank line after the cursor. If the cursor were in the middle
of a line, then OPEN LINE would move text after the cursor to a new line.

Moving Text
Assume that you want to move the paragraph you just inserted to the
beginning of the text. You can store the paragraph in the PASTE buffer,
move the cursor to the new location, and then reinsert the stored
paragraph.
Move the cursor to the start of the second paragraph by pressing the BACK
SPACE key on the keyboard six times:

BACK
>$~A¢I;<

BACK

(6 times)

• • ?§~~¢E >

(6 times)

Keypad Editing

2-17

CPR relies on a
cOMbination of rescue breathin~ and cardiac
cOMPressions. Rescue breathin~. or
Mouth-tO-Mouth resuscitation. involves
fillin~ the victiM'S
lun~s with air.
increasin~ the
level of oxy~en in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood throu~h the
circulatory SysteM.
:S:h 0 r t 1 y aft ere 0 III pie tin ~ his n 0 '.J e I "A De at h i n
'th e Fa Illi I y ." J a III e s A ~ e e h ail e d a t a xii nNe 'A'
York. He was dead before reachin~ his
destination. the victiM of a heart attack .
Had the cab driver known CPR.
A~ee's
life Mi~ht have been saved.

[EOBJ

Next, place the paragraph in a select range. A select range is the text you
mark for editing operations such as CUT, which is used in the next
example.
You mark the start of a select range by pressing the SELECT function key.
Then you move the cursor to wherever you choose as the end of the range. If
you make a mistake, you can press GOLD and the RESET key to start over.
The following example uses the BOTTOM function to make the select range
end at the last character in the buffer. The text is shown as it appears on a
VT100, because the reverse video feature makes the select range more
obvious. (Reverse video is a VT100 feature that highlights either dark letters on a white background or white letters on a dark background.)
Although the VT52 does not use reverse video, VT52 select ranges work the
same as on the VT100.

• SELECT

R~$e;'l" <
• SELECT

·• • fr~$~t }
2-18

Keypad Editing

4ADVANCE
:.:.:.::;::::::::::::::::::::::::::::::::":"
. .0
. ..
....·····
· ·········· ··········

.: •••I3. :TIQM .

4ADVANCE
., ....................................... .

BottoM>

, .................... .

CPR relies on a
co~bination of
rescue breathin~ and cardiac
co~pressions .
Rescue breathin~, or
~outh-to-~outh
resuscitation, involves
fillin~ the victi~'s
lun~s with air,
increasin~ the
level of oxy~en in the blood
strea~.
Cardiac co~pressions applied to the
chest then force this blood throu~h the
circulatory syste~ .
::S:h:::::;:;:;:::::::i:::::::;:;:::::::f :;:::::;:;:::::;:;:;:;:;:;:::::;:;:;:;:;:::i:;:;:;:;:;:::;:;:;:::;::: ::::h:::;:::::::::::::::::::::::::::::::::hl:::::::~i: A :::O:~:l~:t~h :: :::: i:~~~:: ::

: .:.. i:it::t: :Viii : <~e::r.•.. •:J.:.::.: •. e.·"'.:IO".t.l::.,..r.:.•::.:• .••
t¥i~i¥ii:iidf;;;"

u , .~·~

:::
t.r.l: •. !1:.: :. ~.:: L.·:.·. ·17.:.::.$·1:.·:.: ~J::.1,.~.I.: :O.: .:.: : .: ~~:.: :e.: :.: : ·. ~ ni1~N~~\
,,~.~ n ~
•.
::.:.·.·:.a\ .::.S.:::·.l·
.:.::.... ... ....... ... . .

:eA··
. · ••.•

3~~~[i.,~iidR~~~:'jq~@fi(~e8t~:~~~@~t~~it#k;
~i~~~~~i~~~;~r~~i[n~:)~·~~!~;jj~~v~,~}
iE06i
. . . ..... ......

The cursor is over the [EOB] symboL
Store the paragraph in the paste buffer with the CUT function. When you
press CUT, the text in the select range disappears from the screen. Then
move the cursor to the top of the buffer, where you will reinsert the paragraph, with the TOP function:
3

CUT

:;:;:;:;:;:;:;:;:;:;:;:;:::;:;:;:;:;:;:;:;:;:;

PAstE <

........ ..........

+ ~-~~

5 BACKUP

CUT

·. ~A$T~ ./

t ·PR relies on a
;o~bination of rescue breathin~ and cardiac
co~pressions.
Rescue breathin~, or
~outh-to-~outh
resuscitation, involves
fillin~ the victi~'s
lun~s with air,
increasin~ the level of oxy~en
in the blood
strea~.
Cardiac co~pressions applied to the
chest then force this blood throu~h the
circulatory syste~.

[EOBJ

Keypad Editing

2-19

Now use the PASTE function to reinsert the text at its new location in the
buffer:

I ~il l

CUT

6
CUT
.. ............. ',' ...........................

~A$"I¥

PAstE r

.................... ,

Shortly after completin~ his novel "A Death in
the Farllily." Jarlles A~ee hailed a taxi in NelAI
YorK. He was dead before reachin~ his
destination. the victim of a heart attacK.
Had the cab driver Known CPR.
A~ee's
life mi~ht have been saved.
CPR relies on a
~ombination of rescue breathin~ and cardiac
compressions. Rescue breathin~. or
mouth-to-mouth resuscitation~ involves
fillin~ the victim's
lun~s with air.
increasin~ the
level of oxy~en in the blood
stream. Cardiac compressions applied to the
chest then force this blood throu~h the
circulatory system.
[EDBJ

The cursor does not move during this operation; it is still positioned at the
beginning of the word "CPR".

Locating Text
Use the FIND and FNDNXT functions to locate entities of text. These
functions search for text between the cursor and the beginning or end of the
buffer, depending on whether you last used the ADVANCE or BACKUP
function. For example, press GOLD and FIND:
8 FNDNXT

~INb ?

-- +
PF3

FNDNXT

::::::::::::::::::::::::::::::::::::::::::::::

• • • >·• • FINO
...... . <
......... "

EDT prompts you for the text you want to find:
Search for:

Type the word "rescue" and press ENTER to move the cursor to the first
occurrence of the word. EDT searches forward because you last used the
ADVANCE function. (You can also use ADVANCE or BACKUP, instead of
ENTER, to specify the direction of the search.)

2-20

Keypad Editing

ENTER

Search for:

rescue

ENTER
SUBS

Shortly after corllPleting his novel "A Death in
the Farldjy," JalTleS Agee hailed a taxi in New
YorK. He was dead before reaching his
destination, the victiM of a heart attacK.
Had the cab driver Known CPR,
Agee's life Might have been saved.
CPR relies on a
cOMbination of jescue breathing and cardiac
c 0 rll pre s s ion s. R··e-·s c 1.1 e b rea t h i n g, 0 r
Mouth-tO-Mouth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM .

[E06J

Find the next occurrence with the FNDNXT function:
8FNDNXT

. flN6 >

PF3

FNDNXT

·. .·. ~IN6 .·.·.· ·

Shortly after cOMPleting his novel "A Death in
the Farllily ," Jarlles Agee hailed a taxi in Nel.1
YorK. He was dead before reaching his
destination, the victiM of a heart attacK.
Had the cab driver Known CPR,
Agee's life Might have been saved.
CPR relies on a
cOMbination of rescue breathing and cardiac
cOMPressions. lescue breathing, or
Mouth-tO-MOuth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM.

[E06J

Note that EDT considers "rescue" and "Rescue" to be the same.

Keypad Editing

2-21

You can reverse the direction of the search with the BACKUP function:
8 FNDNXT

5 BACKUP

FiNP}

Shortl}' after corllPleting his nOl,J el "A Death in
the Farllily," Jarlles Agee hailed a taxi in Ne lAI
YorK. He was dead before reaching his
destination, the victi~ of a heart attacK.
Had the cab driver Known CPR,
Agee's life ~ight have been saved.
CPR relies on a
c 0 Itl bin a t ion 0 f :fe S cue b rea t h i n 9 a n d car d i a c
co~pressions. R~~c u e breathing, or
~outh-to-~outh
resuscitation , involves
filling the victi~'s lungs with air,
increasing the level of oxygen in the blood
strea~ . Cardiac co~pressions applied to the
chest then force this blood through the
circulatory syste~.

[EDBJ

Now search the first paragraph for "rescue" with the FNDNXT function.
PF3

8FNDNXT
....................................... ......
:..••••••••...{....FIND
.••
....... ..} .· •

FNDNXT

• • • • Hf,NP }

Because there are no more occurrences of the search string, EDT displays
the message:
String was not found

"String was not found" means that there are no more occurrences of
"rescue" between the cursor and the beginning or end of the buffer, depending on the direction of the search. (A string is one or more consecutive
characters.) If you get the "String was not found" message when you are
sure the string exists in the text, you have either mistyped the string or
pressed the wrong direction key. In this case, you would press ADVANCE
before trying again:
4ADVANCE

aQn-oM Y

2-22

Keypad Editing

8FNDNXT

+ ····...................................................
····F·· ·' ·N
··O
··· ........·· .. ··
::::::::::::::. >: . ,',. :''';::::;:;::::::

Shortl)' after COfllPleting his nOl.lel " A Death in
the Fa fllil)'," Jaflles Agee hailed a taxi in Ne'A'
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known CPR,
Agee's life might have been saved.
CPR relies on a
combination of rescue breathing and cardiac
compressions. ftescue breathing, or
mouth-to-mouth resuscitation , involves
filling the victim's lungs with air,
increasing the level of oxygen in the blood
stream. Cardiac compressions applied to the
chest then force this blood through the
circulatory system.
[EDBJ

Move the cursor to the top of the buffer for the next example:
5 BACKUP

5 BACKUP

Substituting Text
Use the SUBS function to replace one word with another. There are four
steps involved in making substitutions:
1.

Press the SELECT key and enter the replacement text.

2. CUT the select range.
3. FIND the text to be substituted.
4. Use the SUBS function to exchange the existing text for the replacement text.
The following example replaces the acronym CPR with Cardio-Pulmonary
Resuscitation.
First, press the SELECT function key and type "Cardio-Pulmonary
Resuscitation". (You can do this anywhere on the screen.) On VT100s this
text appears in reverse video.
• SELECT

• SELECT

a~$~r

a&$&±

Keypad Editing

2-23

Do not be disturbed by the appearance of the first line when you enter the
text. The next step deletes the excess text from the screen.

~~!\~ ~~~ ~ t~!~~ h~:;;l ft~~A~~~efe~th*~ti~IQ;~$: 0 ~: ~: ai~_It eNre I~ 0 III pIe tin g his novel" A De at h in
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known CPR,
Agee's life might have been saved.
CPR relies on a
combination of rescue breathing and cardiac
compressions. Rescue breathing, or
mouth-to-mouth resuscitation, involves
filling the victim's l~ngs with air,
increasing the level of oxygen in the blood
stream. C~rdiac compressions applied to the
chest then force this blood through the
circulatory system.

[EDBJ

Second, when you press the CUT function key, the text in the select range
disappears from the screen and is stored in the paste buffer:
3

CUT

~M~t&

CUT

.:.:.:.:.:.:.:.:.:.:-:-:-:-:.:.:.:.:-:.:-:-:........... p. ··A
·· ·s··r·· ·e·· ........ .

::::::}:.:-: ...... :>::.: :::::::>

$h 0 r t I y aft ere 0 III pIe tin g his no l.J e I "A De at h in
the Falllil}'," JafTleS Agee hailed a taxi in Nel"
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known CPR,
Agee's life might have been saved.
CPR relies on a
combination of rescue breathing and cardiac
compressions. Rescue breathing, or
mouth-to-mouth resuscitation, involves
filling the victim's lungs with air,
increasing the level of oxygen in the blood
stream. Cardiac compressions applied to the
chest then force this blood through the
circulatory system.

[EDBJ

2-24

Keypad Editing

The phrase "Cardio-Pulmonary Resuscitation" remains in the paste buffer
until you replace it with text from another operation that uses the paste
buffer (such as CUT or APPEND), or until you end the editing session.
Third, use the FIND function to locate the acronym. The cursor moves to
the first occurrence of the search string "CPR". EDT does not normally
distinguish uppercase from lowercase in commands, which is why you can
type "cpr" or "CPR":

NOTE
You must use FIND in SUBS operations, because you are
replacing text that matches the search string with the contents of the paste buffer. SUBS does not work if you do not
use FIND.
8FNDNXT

FINP{.·<

a +
~

PF3

FNDNXT

ENTER

Search for: cpr

SUBS

Shortly after completing his novel "A Death in
the Fafllily," Jaflles Agee hailed a taxi in Nel.1
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known #PR,
Agee's life might have be~n saved.
CPR relies on a
combination of rescue breathing and cardiac
compressions. Rescue breathing, or
mouth-to-mouth resuscitation, involves
filling the victim's lungs with air,
increasing the level of oxygen in the blood
stream. Cardiac compressions applied to the
chest then force this blood through the
circulatory system.

[EDBJ

Fourth, press the GOLD and SUBS function keys to substitute "CardioPulmonary Resuscitation" for "CPR". EDT makes the first substitution,
and then the cursor moves to the next occurrence of the acronym:
rE NTER

ENTER

sUSS »

..... . ........... .

ENTER

i ~Ui~ (
Keypad Editing

2-25

Shortl}' after cOlllPleting his nOl.Jel "A Death in
the Faillily," Jailles Agee hailed a taxi in Nel>'
York. He was dead before reaching his
destination, the victiM of a heart attack.
Had the cab driver known Cardio-PulMOnary Resuscitation,
Agee's life Might have been saved.
~PR relies on a
~oMbination of rescue

breathing and cardiac
cOMPressions. Rescue breathing, or
Mouth-tO-Mouth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM.

[EOBJ

You can continue to replace "CPR" with "Cardio-Pulmonary Resuscitation"
by pressing the GOLD and SUBS keys in sequence. EDT makes the substitution and searches for the next occurrence of "CPR":

..
.. ..... .. .. . . . .. .. . .

GOLD

ENTER

« $~ij$H

ENTER

§QQ$

Shortl}' after cOlllPleting his nOl.Jel "A Death in
the Faillil}'," Jailles Agee hailed a taxi in Ne'>,
York. He was dead before reaching his
destination, the victiM of a heart attack.
Had the cab driver known Cardio-PulMOnary Resuscitation,
Agee's life Might have been saved.
Car d i 0 - P U 1111 0 n a f } ' Res usc i tat i 0+': rei i e s on a
COMbination of rescue breathi;g and cardiac
cOMPressions. Rescue breathing, or
Mouth-tO-Mouth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM.

[EOBJ

2-26

Keypad Editing

Notice that EDT displays the message "String was not found" when there
are no more occurrences of the acronym.

Updating the Existing File
The EXIT command saves the buffer contents as a file. Press GOLD and the
COMMAND function key to get the command prompt:

•

...................

PF ················

••••••••• 1 •••

>• • >«<• • +

•. ·...... ·.·.60. t.·D·· ...........·•.
: : ::: :i. ;i::: :::: :::::i:: :::::::::]~: ~;

PAGE

......................

COMMAND

C 0 I!ll!l and : <>

Type the EXIT command and press ENTER to save your work:
ENTER

COI!lI!land :

exit

ENTER
SUBS

The file you saved with the EXIT command becomes the current version of
CPR.DAT.

(

Session 3

Ire
-

J1::::J]

This session shows you how to delete and replace text, use the journal file,
and enter the QUIT command so none of your edits are included in the file.

Editing the Updated File
Start EDT to edit the latest version of CPR.DAT:

cpr.datru
Shortl}' after

COI!lPletin9 his

novel

"A Death

Keypad Editing

2-27

$:h 0 r t I y aft ere 0 "I pie tin g his n 0 I) e I "A Deat h i n
"i."he Family," Ja',les Agee hailed a taxi in NelAI
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known Cardio-Pulmonary Resuscitation,
Agee's life might have been saved.
Cardio-Pulmonary Resuscitation relies on a
combination of rescue breathing and cardiac
compressions. Rescue breathing, or
mouth-to-mouth resuscitation, involves
filling the victim's lungs with air,
increasing the level of oxygen in the blood
stream. Cardiac compressions applied to the
chest then force this blood through the
circulatory system.

[EDBJ

(Only the first paragraph is shown in most of the examples in this session,
although the second paragraph still appears on your screen.)
Deleting and Reinserting by Character
You can delete and reinsert text by individual characters with DELETE,
DEL C, and UND C. For example, move the cursor one word to the right
with the WORD function . Then press the DELETE key, which is on the
keyboard, three times to delete characters to the left of the cursor:
1

WORD

.......................... ................ ...

CHNij¢A$$
1

WORD

dijNqq~$g

S h 0 r t:~:f t ere 0,,1 pie tin g his nOli e I "A De at h i n
the F" a'11 i I y ," J a "I e sAg e e h a i led a t a xii nNe IAI
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known Cardio-Pulmonary Resuscitation,
Agee's life might have been saved.

2-28

Keypad Editing

Unlike DELETE, DEL C deletes the character that the cursor is on; the
text to the right of the cursor moves one space to the left each time:
6

DEL C

Shordh cOIIIPleting his novel "A Death in
the F·~·11l i 1 }' ." J a III e sAg e e h ail e d a t a xii nNe 'A'
York . He was dead before reaching his
destination. the victim of a heart attacK.
Had the cab driver Known Cardio-Pu l monary Resuscitation.
Agee's life might have been saved.

The character last deleted by either DELETE or DEL C is stored in the
character buffer until another deleted character takes its place. UND C
restores the last character deleted:

DEL C

ciNP#

·• •· U~ijq C

DEL C

S h 0 r dfe r COlli P let i n g his novel "A Deat h i n
the F·a·mi 1 y ." J a III e sAg e e h ail e d a t a xii nNe ",.
YorK. He was dead before reaching his
destination. the victim of a heart attacK.
Had the cab driver Known Cardio-Pulmonary Resuscitation.
Agee's life might have been saved.

Keypad Editing

2-29

You can restore a character an unlimited number of times . However, you
keep restoring the same character until you put a different character in the
buffer. For example, if you continue to press the GOLD and UND C function keys, you restore the character "t" each time:

II~i~

DEL C

+u~M 8
,

DEL C

QNijd

·ill
· · · · · · ·· ·

+PNPq )

..... ...... .. .............................

+PF1~~L~

DEL C

:;:;:;:;:;:;:;:;-;:;:;:;:;:;:;:;:;:;:;:;:;:;:
·.. ·········U
···N
···D
··· ..C
···........
:;:::::::::: .. :... ::.. :.:::.:}}:::

S h 0 r t ·(t t e r COllI pIe tin 9 his n 0 '-' e 1 "A De a t h i n
the Fa III i 1 }' ," J a ITI e sAg e e h ail e d a t a xii nNe 1,1
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known Cardio-Pulmonary Resuscitation,
Agee's life might have been saved.

The same concept applies to the word and line buffers. You can restore an
entity an unlimited number of times, but you restore the same character,
word, or line until you replace it with another deleted entity.

Deleting and Reinserting by Word
You can delete the text from the cursor back to the beginning of a word by
pressing the LINE FEED key on the main keyboard. Like the DELETE
key, LINE FEED operates irrespective of ADVANCE or BACKUP;

tt t e r COllI pIe tin 9 his n 0 '-' e 1 "A Deat h i n
.i:. h e Fa ITI i 1 }' ," J a III e sAg e e h ail e d a t a xii nNe 1, 1
York. He was dead before reaching his
destination, the victim of a heart attack.
Had the cab driver known Cardio-Pulmonary Resuscitation,
Agee's life might have been saved.

2-30

Keypad Editing

Restore the deleted text by using the UND W function:
9

DEL W

QNPW
5 h 0 r t{t t e r COllI pIe tin 9 his novel "A Deat h i n
the Falllil)'," Jallles Agee hailed a taxi in NelAI
YorK. He was dead before reaching his
destination, the victim of a heart attacK.
Had the cab driver Known Cardio-Pulmonary Resuscitation,
Agee's life might have been saved.

You can delete several words in succession with either LINE FEED or
DEL W. However, LINE FEED deletes the word preceding the cursor.
DEL W deletes text from the cursor to either the next or the preceding
word. Unlike LINE FEED, DEL W is affected by ADVANCE and
BACKUP.

DEL W

Shorti'A Death in
the Falllil)'," Jallles Agee hailed a taxi in NelAI
YorK. He was dead before reaching his
destination, the victim of a heart attacK.
Had the cab driver Known Cardio-Pulmonary Resuscitation,
Agee's life might have been saved.

Keypad Editing

2-31

However, only the last deleted word is stored in the word buffer:
9

DEL W

UNP.W>/

ShortWovel "A Death in
the Far,lil)'," Jarlles Agee hailed a taxi in Nel,1
YorK. He was dead before reaching his
destination, the victiM of a heart attacK.
Had the cab driver Known Cardio-PuIMonar)' Resuscitation,
Agee's life Might have been saved.

Deleting and Reinserting by Line
You can use (GmL! U ) to delete text back from the cursor to the beginning of a
line. (Hold down the keyboard key labeled CTRL and press the "U" key.)
(GTRL!U) is not affected by ADVANCE or BACKUP.

WO'.Jel "A Death in
the Farllil)'," Jarlles Agee hailed a taxi in Nel,1
YorK. He was dead before reaching his
destination, the victiM of a heart attacK.
Had the cab driver Known Cardio-PuIMonar)' Resuscitation,
Agee's life Might have been saved.

2-32

Keypad Editing

Restore this text with the UND L function:
PF4 0EL L

. QNP.U)
Shor~{ovel

"A Death in
the F'il III i 1 y ." J a III e sAg e e h ail e d a t a xii nNe 'A'
YorK. He was dead before reaching his
destination. the victiM of a heart attacK.
Had the cab driver Known Cardio-PulMonary Resuscitation.
Agee's life Might have been saved.

(CTRL/U ldeletes text from the cursor to the beginning of a line; DEL EOL
deletes text from the cursor to the beginning or end of the line. DEL EOL is
affected by ADVANCE and BACKUP.

Delete text from the cursor to the end of the line by using the DEL EOL
function:

·1IIIi
·riR~~
········
. . ....................

EOL

+ ·. QiU~6.L.

EOL

.... ... ................................... .

OECEOC

.... ...... ........... ..

Short)
the FaMily." JaMes Agee hailed a taxi in New
YorK. He was dead before reaching his
destination. the victiM of a heart attacK.
Had the cab driver Known Cardio-PulMOnary Resuscitation.
Agee's life Might have been saved.

Keypad Editing

2-33

If you use DEL EOL again, you delete the text on the next line:

EOL

p~ij~~ij

Short }
York. He was dead before reaching his
destination , the victiM of a heart attack .
Had the cab driver known Cardio-PulMOnary Resuscitation,
Agee's life Might have been saved.

You can restore the deleted text with the UND L function.

PF4 0EL L

;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:::::;::::

«.·• l.JNo.« •
....... .. ...........

Short:>:
the Fairlily," Jarrles Agee hailed a taxi in Nel,1
York. He was dead before reaching his
destination, the victiM of a heart attack.
Had the cab driver known Cardio-PulMOnary Resuscitation,
Agee's life Might have been saved.

You can delete several lines in succession with either the DEL EOL or
DEL L function. Note that DEL EOL deletes the text from the cursor to the
end of the line, whereas DEL L deletes the entire line and the line terminator. Also, DEL L is affected by ADVANCE and BACKUP, while DEL EOL
is not.

2-34

Keypad Editing

The text from the line below moves next to the cursor when you delete the
current line with DEL L:

PF4 DEL L

• • • • rvNp W.·• • •

:• •rr. QNp • ' • • •

:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.: + .:.: .:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.

PF4 DEL L

5 h a r d-fa d the cab d r i ve r f~ n alAI n Car d i a - P u 1 {lIOn a f}' Res usc ita t ion,
Agee'; life might have been saved.

Note that the DEL L function, unlike the DEL EOL function, removes the
line terminator as well as the visible text.
Only the last deleted line is restored with UND L:
PF4 DEL L
;.:.:.:.:.;.:-:.:.:.:.:.:.:.:.:.:.:.:-:.;.:-:.

• :Qijt> # :.

Shortl~stination, the victim of a heart attack.
Had the cab driver known Cardi~-PulmonarY Resuscitation,
Agee's life might have been saved.

Keypad Editing

2-35

Restoring Your Work After a System Failure
Occasionally the computer system "crashes" and operations cease. When
the system returns to normal, you can recover your work with the journal
file and RECOVER qualifier. The journal file is a safeguard in case of
system failures. RECOVER is the qualifier you use to restore edits from the
journal file when the system is back in operation.
EDT creates the journal file when you start an editing session. Each edit
you make to a buffer is also stored in the journal file. Therefore, if a system
failure occurs before you end the editing session, your work is saved and
can be recovered before you log out. The journal file continues to store your
edits even if there are repeated system crashes and recoveries. When you
end the editing session with EXIT or QUIT, the journal file is deleted.
EDT assigns the journal file the extension .JOU. Because you are editing
the file CPRDAT, the journal file is named CPRJOU. EDT looks for this
file when you use the RECOVER qualifier and merges the journal file edits
into CPRDAT.
The following example shows how to simulate a system crash with the
QUIT/SAVE command sequence. (QUIT/SAVE does not affect anyone else's
computer session.) Then you restore the contents of the buffer by using the
RECOVER qualifier in the command line.
Press the GOLD and COMMAND keys:

f'IItMI
. . + ijoMM4Np
7

PAGE

... . . .... ... .... .... ..

Enter the QUIT/SAVE command sequence after the prompt:
ENTER

COMMand :

9uit/save

ENTER
SUBS

NOTE
Entering QUIT/SAVE is not a standard procedure and IS
used here only for instructional purposes.
You need to include the journal file edits before resuming work on the file
with EDT. Otherwise, the edits will be deleted. (For lAS systems, turn back
to the last section in Part I entitled "A Note to lAS Users" before recovering
your edits.)
Restore your work by using RECOVER as shown in the following command
line:
U

2-36

edit/edt cpr.dat/recol!er IBITJ

Keypad Editing

Restoring text with the journal file causes each step in your previous editing session to reappear on the screen. It can be entertaining to watch EDT
recover edits, because you get to see the editing session happen again at a
much faster pace. The resulting text on the screen looks much the same as
before the simulated system crash, although not all the text may appear:

A~ee'i life

Mi~ht

have been saved.

Cardio-PulMOnary Resuscitation relies on a
cOMbination of rescue breathin~ and cardiac
cOMPressions. Rescue breathin~, or
Mouth-tO-Mouth resuscitation, involves
fillin~ the victiM'S
lun~s with air,
increasin~ the level of oxy~en
in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood throu~h the
circulatory SysteM.

[EOBJ

COMMand: quit/save

A real system crash may lose the last few characters you typed, so examine
the screen carefully after a recovery to determine where to resume the edit.
To be sure of the buffer's contents, press (CTRL/W ) to restore the screen before
continuing the editing session:

ShortA~stination, the victiM of a heart attack.
Had t~~ driver known Cardio-PulMonary Resuscitation,
A~ee's life Mi~ht have been saved.

Cardio-PulMonary Resuscitation relies on a
cOMbination of rescue breathin~ and cardiac
cOMPressions. Rescue breathin~, or
Mouth-tO-Mouth resuscitation, involves
fillin~ the victiM'S
lun~s with air,
increasin~ the level of oxy~en
in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood throu~h the
circulatory SysteM.

[EOBJ

Notice that the cursor is at the same location as before the simulated system crash. You can now continue the editing session.
Keypad Editing

2-37

Ending the Session Without Saving Your Work
If you decide you do not want to save the work you did in an editing session,
use the QUIT command:

ENTER

COfllllland :

quit

ENTER

SUBS

The main buffer is not saved in the file CPR.DAT, so the latest version of
CPR.DAT remains unedited. Neither is the journal file saved, so you cannot
recover your edits with the RECOVER qualifier.

2-38

Keypad Editing

CHAPTER III.

LINE EDITING

Session 1
Starting a Line Editing Session
Inserting Text
Correcting Mistakes
Using the Help Facility
Line Numbers and Range Specifications
Displaying Text
Saving the Text as a File

Session 2
Editing a File
Refreshing the Display of Text
Adding to the Buffer
Moving and Resequencing Lines
Locating Text
Substituting Text
Updating the Existing File

Session 3
Editing the Updated File
Deleting and Replacing Text
Restoring Your Work After a System Failure
Ending the Session Without Saving Your Edits

Chapter III.

Line Editing

Line editing operates on all terminals. In fact, if you have a hardcopy
terminal, line editing is the only way you can use EDT. Some users with
video terminals prefer line editing because they are accustomed to editing
by numbered lines. Although EDT numbers each line of the buffer for your
editing convenience, these numbers are not included as part of the text.
This chapter describes some basic line editing commands. (You can enter
these commands in either uppercase or lowercase type.) Most of the line
editing commands can be abbreviated, such as INSER, INS, or I for the
INSERT command. Although the full command name is given in the
descriptions, the minimum abbreviation is used in the examples.

NOTE
On some systems (such as lAS), VT52 and VT100 terminals
use uppercase text by default. You can reset this default as
described in Part I, "Using EDT on Your System."

Session 1
Ir~

)LJ)

This session describes how to insert and display text, correct mistakes, and
use line numbers.

3-1

Starting a Line Editing Session
Start EDT to create the file AIRWAY.DAT:

e d i t / edt a i riAl a}' • d a t ~
Input file does not exist

[EOBJ

*...

"Input file does not exist" tells you that there is no file in your directory
named AIRWAY.DAT. The placement of the End-of-Buffer symbol, or
[EOB], shows that the buffer is empty. You enter line editing commands
after the asterisk prompt (*).

Inserting Text
Type "i" for INSERT and enter the following text exactly as shown into the
buffer. Notice that EDT indents the text you enter. (The text intentionally
contains a mistake.) Use the key labeled DELETE if you mistype a word.
However, if you make a mistake on a line and then press (ill) , you must use
a line editing command described later to fix the error. Complete the insertion with (CTRL/Z ) (hold down the keyboard key labeled CTRL and press the
"Z" key):

AIRWAY - When the patient's head is (Bill
tilted forlAlard, the tongue IlIa}' blocK the (Bill
th roat, IllaKing b reething illlPossible. If (Bill
this SeeITlS to be the case, t i l t the (Bill
patient's head bacf~. This SilllPle (Bill
procedure could be enough to open the (Bill
air passage. (NOTE: If there is a (Bill
possible necf~ inJun', use the Jal,I-lift (Bill
Illethod instead.) (Bill
(CTRLI Z )

[EOBJ

*.: . .:

3-2

Line Editing

EDT assigns a number to each line of text in the buffer. These numbers
start with 1 and increase in increments of 1. You will see examples of line
numbers in the following sections.

Correcting Mistakes
You probably noticed that "breathing" is spelled incorrectly. To correct it,
use the following steps:
1. Move the cursor to the beginning of the buffer.
2.

Locate the line with the error.

3. Fix the error.
Display the first line to start operations from the beginning of the buffer. (If
the cursor were located after the error, the search for the error would not
work.) Type "I" and press
as shown:

* 1 (Bill
1

AIRWAY - When the patient's head is

Then find the line containing the misspelled word by typing the word in
quotes:

* "breething" (Bill
3
throat, MaKing breething iMPossible.

NOTE
In line editing, EDT searches from the current line to the end
of the buffer. If you ever have trouble with the search method
described here, the problem might be caused by starting your
search after the location of the word. Display a line that
comes before the word and try again.

Line Editing

3-3

To replace the misspelled word, type "8" to substitute, followed by the
incorrect and correct spellings, which are enclosed in slashes:

* s/breething/breathingl m
3
throat, maKing breathing impossible.
substitution

You can replace the word "method" with "maneuver" the same way. Note
that you must display the line of the substitution first, or you will get a "No
substitutions" message:

* s/lTlethod/'Tlaneul.le rl
No substitutions
* "'Tlethod"
9
method instead.)
* s/ITlethod/'Tlaneul.le rl m
maneul.ler instead.)
9
substitution

* :::::

3-4

Line Editing

Using the HELP Facility
You can get information about EDT commands at any time by typing the
HELP command after the asterisk. Figure 3-1 shows what appears when
you use the HELP command:

You can get help on a topic by typing
HELP topic subtopic subtopic •••
A topic can have one of the following

fO~MS :

1. An alphanurTleric string (e.g. a corTlrTland narTle, option, etc.)
2. The Match-all or wild ca~d SYMbol (*)
ExarTIPles:

HELP SUBSTITUTE NEXT
HELP CHANGE SUBCOMMANO
HELP CH

If a topic is abbreviated, the text for all topics which Match the
abbreviation is displayed.
Additional inforMation available :
CHANGE
FIND
PRINT
SUBSTITUTE
* :<::

CLEAR
HELP
QUIT
TABS

Figure 3-1:

COPY
INCLUDE
RANGE
TYPE

DEFINE
INSERT
REPLACE
WRITE

DELETE
JOURNAL
RESEQUENCE

E>< IT
KEYPAD
SET

FILL
MOI.lE
SHOW

Help Text

On some systems, the help text may not all fit on a video screen. If so, press

The help text also tells you how to get information about specific commands. For example, if you want help on the INSERT command, type:
* help insert

(!ill)

EDT displays information about the INSERT command, followed by the
asterisk prompt.

Line Editing

3-5

Line Numbers and Range Specifications
The line numbers that EDT assigns help you locate and edit text but are
not part of the file . Line numbers are not kept when you end an editing
session. To see the line numbers, enter "t w" for TYPE WHOLE after the
asterisk:

* t "" (Bill
1

2
3
4
5
G

7
8
9

AIRWAY - When the patient's head is
tilted forward. the ton~ue May blocK the
throat. MaKin~ breathin~ iMPossible. If
this seeMS to be the case. tilt the
patient's head bacK. This siMPle
procedure could be enou~h to open the
air passa~e. (NOTE: If there is a
possible necK inJury. use the Jaw-lift
Maneuver instead.)

[EOBJ

*::::::

The [EOB] (End-of-Buffer) symbol indicates the end of text in the buffer.
Line numbers specify a range of lines for an editing operation. The next
section shows how to use range specifications, which let you display and
modify a group of lines.

Displaying Text
The TYPE command displays text. The previous section showed the use of
TYPE WHOLE (abbreviated to "t W") to display the entire contents of a
buffer.
To display individual lines, type the line number. Use an implied TYPE
(also called the Null command) by pressing ru after the asterisk. An implied TYPE displays the next line in the buffer:

AIRWAY - When the patient's head is

3-6

Line Editing

tilted forward. the

throat.

MaKin~

ton~ue

breathin~

May blocK the

iMPossible.

However, you are not limited to displaying one line at a time. Range specifications let you display several lines at once. You can use the colon (:),
comma (,), and number sign (#) in range specifications.
Use the colon to specify the lines from the first number through the second.
You do not need to include "t" for TYPE when you specify ranges this way.
For example, display lines 1 through 5:

2
3
4
5

AIRWAY - When the patient's head is
tilted forward, the tongue May blocK the
throat, MaKing breathing iMPossible. If
this seeMS to be the case, tilt the
patient's head bacK. This siMPle

To display several lines within a range, separate the line numbers with
commas. Display lines 3, 5, 7, and 9:

* 3,5,7,9 (@)
3
5
7
9

throat, MaKing breathing iMPossible.
patient's head bacK. This siMPle
air passage. (NOTE: If there is a
Maneuver instead.)

Use the number sign to display a given number oflines, starting with the
first line you specify. For example, display three lines, beginning with
line 4:

this seeMS to be the case, tilt the
patient's head bacK. This siMPle
procedure could be enough to open the

Line Editing

3-7

Saving the Text as a File
The EXIT command saves the contents of the main buffer in the file you
named when you started EDT. Type the EXIT command after the prompt
and press (ill):

A message appears telling you how many lines the file now contains.

(

Session 2
)

[[.

.TL.J]

This session describes how to clear system messages from the screen and
how to use some common editing functions.

Editing a File
Start EDT and select the file you want to edit:

edit/edt air . . 'a>'.dat m
1
AIRWAY - When the patie n t's head is

EDT places the file AIRWA Y .DAT into the main buffer and displays the
first line, followed by the asterisk prompt.

Refreshing the Display of Text
Occasionally, another user may send you a message during your editing
session. The message may look as follows:
AIRWAY - When the patie n t's head is

MESSAGE FROM SAUTER:
I wo u ld drive to the meeti n g but my
car is on the fritz. How much do
YOU know about fan belts?

3-8

Line Editing

Although the message affects the display of the text, it does not become
part of the buffer, even if you were inserting text at the time. You can
either ignore the message or, if it bothers you, use a range specification to
redisplay that part of the buffer:

* 1:4 @

AIRWAY - When the patient's head is
tilted forward. the tongue May block the
throat. Making breathing iMPossible. If
this seeMS to be the case. tilt the

1
2
3
4

Adding to the Buffer
If you want to insert text at the end of the buffer, use the INSERT END
command (abbreviated to "i e") and enter text as shown:

e @

If }'OU CO!lle across an unconscious patient. the @
follol,ling funda!llentals (f,nol,ln as the A-B-C'sl @
1,lill help }'OU deterITline 1,lhether CPR is @
necessar}', @
@
(eTRU Z )

[EOB]

Check your insertion with TYPE WHOLE:

1,1 @
1

2
3
4
5
G

7
8
9
10
11

12
13

AIRWAY - When the patient's head is
tilted forward. the tongue May block the
throat. Making breathing iMPossible. If
this seeMS to be the case. tilt the
patient's head back. This siMPle
procedure could be enough to open the
air passage. (NOTE: If there is a
possible neck inJury. use the Jaw-lift
Maneuver instead.)
If YOU COMe across an unconscious patient. the
following fundaMentals (known as the A-B-C'sl
will help YOU deterMine whether CPR is
necessa r}'.

[EOB]

Line Editing

3-9

If you want the new text to appear as a separate paragraph, you must
insert a blank line between lines 9 and 10. Display the line that is to
appear after the blank line, and then use the INSERT command:

* 10 00
10
*i

If YOU COMe across an unconscious patient. the

00
00
(CTRLI Z )

If YOU COMe across an unconscious patient. the

Display lines 8 through the end ("8:e") to check the insertion:

* 8:e 00
8
9
9.1

possible neck injurY. use the Jaw-lift
Maneuver instead.)

If YOU COMe across an unconscious patient. the
following fundaMentals (known as the A-5-C's)
will help YOU deterMine whether CPR is
necessary.

11
12
13
14

[E05]

*:,:::

Notice that EDT marks the inserted blank line with a fractional line
number.

3-10

Line Editing

Moving and Resequencing Lines
The MOVE command, abbreviated here to "m", moves a range of lines to
another location in the buffer. For example, move lines 10 through 14 to
the beginning:

lines ITloved

The text is moved before line 1.
Check the results with the TYPE WHOLE command:

1,1

0.1
0 .2
0.3
0.4
0.5

2
3

4
5
G

7
8
9
9.1

I f YOU come across an unconscious patient. the
following fundamentals (known as the A-5-C's)
will help YOU determine whether CPR is
necessary.
AIRWAY - When the patient's head is
tilted forward. the tongue may block the
throat. making breathing impossible. If
this seems to be the case. tilt the
patient's head back. This simple
procedure could be enough to open the
air passage. (NOTE: If there is a
possible necK inJury. use the Jaw-lift
maneuver instead.)

[E05J

*::::>

Notice that the new first paragraph has fractional line numbers. You may
want to use the RESEQUENCE command, abbreviated to "res", to replace
them:

* res ru
15 lines

rese9uenced

*::;:,

Line Editing

3-11

RESEQUENCE renumbers the lines, starting with 1 and continuing in
increments of 1:

2
3
4
5

G
7
8
9
10
11
12
13
14
15
[EOBJ
* <:,:

If YOU COMe across an unconscious patient, the
following fundaMentals (Known as the A-B-C's)
will help YOU deterMine whether CPR is
necessary.
AIRWAY - When the patient's head is
tilted forward, the tongue May blocK the
throat, MaKing breathing iMPossible. If
this seeMS to be the case, tilt the
patient's head bacK. This siMPle
procedure could be enough to open the
air passage. (NOTE: If there is a
possible necK inJury, use the Jaw-lift
Maneuver instead.)

However, the line numbers do not have to start with 1. If you prefer, assign
the starting number and increments of the line numbers with the
SEQUENCE qualifier (abbreviated to "seq:"). For example, you can start
with 100 and continue in increments of 10. Be sure to include the colon in
"seq:"; otherwise, you get an error message.

* res/se9:100:10 (@)
15 lines rese9uenced
* 1#5 (@)
100
If YOU COMe across an unconscious patient, the
110
following fundaMentals (Known as the A-B-C's)
120
will help YOU deterMine whether CPR is
130
necessary.
140

*,:,:::

3-12

Line Editing

Locating Text
In Session 1 you learned how to locate a word in order to correct misspellings. There are also other techniques for locating text.
Using single or double quotation marks around a string of characters
locates the string in the buffer. EDT searches for the string starting from
the current line and continuing toward the end of the buffer.
For example, suppose you want to find the first occurrence of the word
"patient". First, display line 100 to start the search from the beginning. (If
you ever forget the first line number, type "0" to display the first line.)
Then enter "patient" to find the search string:

* 0 ID
If
100
* "patient" ID
100
If
*,:::,:

e across an unconscious patient , the

}' 0 IJ

COllI

)' 0 1.1

come across an unconscious patient , the

Notice that, by coincidence, the first line contains the word "patient". To
find all lines containing "patient", enter the TYPE ALL command (abbreviated to "t a") and "patient":

a "patient" ID
100
If YOU come across an unconscious patient, the
150
AIRWAY - when the patient's head is
190
patient's head back. This simple

Line Editing

3-13

If you forget to use quotation marks around the search string, EDT displays
the following message:

* patient @
Unrecognized cOMMand

*::::::

You can limit the range of a search by specifying the first and last line
numbers in the range. For example, find all occurrences of "patient"
between lines 100 and 170:

* 100:170 a "patient" @
100
If YOU COMe across an unconscious patient, the
150
AIRWAY - when the patient's head is

*::::::

Substituting Text
To replace one word with another, use the SUBSTITUTE command (abbreviated to "s/sl / s2") for the first occurrence of the word. Use SUBSTITUTE
NEXT (abbreviated to "s n") for each occurrence thereafter.
Slashes (!) delimit substitute strings in the following examples. (A delimiter separates one string from another on the same command line.) You do
not need to use quotation marks around the strings, unless you are using

3-14

Line Editing

the quotes as delimiters. You can use other characters as delimiters instead, such as & or # . Do not use slashes if there is a slash in one of the
strings.
Start from the beginning of the buffer by displaying the first line. Then use
the SUBSTITUTE command to enclose the existing and replacement text
in slashes:

* 100 00
100
If YOU COMe across an unconscious patient.
* s/patient/I.J ictifil/oo
100
If YOU COMe across an unconscious victiM' the
1 substitution
* s n 00
150
AIRWAY - when the victiM'S head is
*::::;:

To change all occurrences of "patient" to "victim" from here to the end of
the buffer, use SUBSTITUTE WHOLE (abbreviated to "s / s1 / s2 /w") as
shown:

* s/patient/I.J ictirrl/IAloo
180
victiM'S
substitution

he~d

back. This siMPle

Updating the Existing File
Use the EXIT command to save the results of your editing session:
* exit 00

EDT saves the main buffer contents in the file AIRWAY.DAT. Then EDT
displays the number of lines the file now contains.

Line Editing

3-15

Session 3
..J

1C2-

.1LJlI

This session describes how to delete text, recover from a simulated system
failure, and end the session without saving the buffer contents in a file.

Editing the Updated File
Start EDT to edit the latest version of AIRWAY .DAT:

edit/edt ai riAl a}' • dat 00l
If YOU COMe across an unconscious victiM' the
1
* t IAI 00l
If YOU COMe across an unconscious victiM' the
1
following fundaMentals (known as the A-B-C's)
2
will help YOU deterMine whether CPR is
3
necessar}'.
4
5
G

7
8
9
10
11
12
13
14
15

AIRWAY - When the victiM'S head is
tilted forward, the tongue May block the
throat, Making breathing iMPossible. If
this seeMS to be the case, tilt the
victiM'S head back. This siMPle
procedure could be enough to open the
air passage. (NOTE: If there is a
possible neck injurY, use the Jaw-lift
Maneuver instead .)

[EOB]

* ;: :

Notice that the line numbers begin with 1 and increase in increments of 1.
The line numbers you assigned in the last editing session were not part of
the text and were not saved at the end of the editing session.

Deleting and Replacing Text
You can delete lines individually or in a range by using the DELETE
command. EDT displays the line following the last line deleted. Delete lines
13 and 14, then line 15, as shown:

3-16

Line Editing

* d 13114

2 lines deleted
15

1 line deleted

[EOBJ
*::;:,:

Although you cannot undelete these lines, you can replace them with the
REPLACE command. EDT tells you how many lines are being replaced and
then prepares for the insertion of text. Replace line 12 by entering the
following three lines of text:

* r 12
1 line deleted
air passage. Use the Jal.I-lift
rllethod in case of a possible
ned; injun'.

m
m

ICTAL!.Z)

[EOBJ

Display the range of lines to check the insertion. The following command
tells EDT to start with line 10 and display eight lines. If there are fewer
lines in the range than you specify, EDT displays all the lines that are in
the range:

* 10#8
10
11
12
13
14

victiM'S head back. This siMPle
procedure could be enough to open the
air passage. Use the Jaw-lift
Method in case of a possible
necf; injun'.

[EOBJ

Restoring Your Work After a System Failure
Occasionally, the computer system crashes and operations cease. When
the system restarts, you can use the journal file and RECOVER qualifier to
save your work.

Line Editing

3-17

EDT creates the journal file when you start an editing session. The journal
file keeps a copy of each edit that you make in a buffer. If there is a system
failure before you end the session, your work is thus saved and can be
recovered.
Because you are editing the file named AIRWA Y.DAT, EDT named the
journal file AIRW A Y.JOU. When you include the RECOVER qualifier in
the command line to resume your editing session, EDT looks for the file
AIRWAY.JOU and includes the edits it contains to AIRWAY.DAT. You
can use the journal file to recover edits even in the case of repeated system
crashes. The journal file is deleted when you end the editing session or
log out.
Simulate a system failure by typing the QUIT /SAVE command sequence
after the asterisk and pressing m :
* "Illit/sal.Je

NOTE
Entering QUIT/SAVE is used here for instructional
purposes only and is not a standard procedure.

EDT has stored your edits in a journal file named AIRWA Y.JOU. When
you use the RECOVER qualifier with the command to resume editing, EDT
enters line editing and inserts the contents of the journal file into the
buffer. (For lAS systems, turn back to the last section in Part I entitled "A
Note to lAS Users" before recovering your edits.)
Type the following to restore your edits:

ed i t/edt ai rl,.Ja}'. dati recove r ffiD)

EDT repeats all the edits you made to the text during the editing session.
Then the asterisk prompt is displayed so you can continue editing. The
screen displays your last edits when the recovery process is complete.

3-18

Line Editing

A real system crash can lose the last few characters you typed, so examine
the screen carefully after a recovery to determine where to resume editing.
You can check the results with TYPE WHOLE:

2
3
LI
5

G
7
8
8
10
11
12
13

1L1

If YOU COMe across an unconscious victiM' the
following fundaMentals (known as the A-B-C'sl
will help YOU deterMine whether CPR is
necessary.
AIRWAY - When the victiM ' S head is
tilted forward, the tongue May block the
throat, Making breathing iMPossible. If
this seeMS to be the case, tilt the
victiM'S head back. This siMPle
procedure could be enough to open the
air passage. Use the Jaw-lift
Method in case of a possible
necl; inJur)' .

[EOBJ

*,:,:,:

Ending the Session Without Saving Your Edits
The QUIT command tells EDT not to save the text in the main buffer:
* ';o,ti t

The file AIRWAY .DAT remains unchanged. The journal file is not saved, so
you cannot restore your edits with the RECOVER qualifier.

Line Editing

3-19

CHAPTER IV.

NOKEYPAD EDITING

Session 1
Starting a Nokeypad Editing Session
Entering Commands
Inserting Text
Using Entities and Counts
Moving the Cursor
Setting the Direction of Cursor Movement
Saving the Text as a File

Session 2
Editing a File
Refreshing the Screen (REF)
Adding to the Buffer
Moving Text
Locating Text
Substituting Text
Updating the Existing File

Session 3
Editing the Updated File
Deleting Text
Undeleting Text
Restoring Your Work After a System Failure
Ending the Session Without Saving Your Edits

Chapter IVo

Nokeypad Editing

Nokeypad editing is available only on VT52 and VT10O--terminals. You
may want to try nokeypad editing if you plan to redefine keys often or if
you are accustomed to a screen-oriented editor.
With nokeypad editing you can display up to 22 lines of text on the screen
and move the cursor directly to the text you want to modify. You can also
use the arrow keys for CUI'sor movement. In keypad editing you press keys
to edit text; you type commands in nokeypad editing.
Nokeypad editing is provided for two reasons:
1. Nokeypad editing is compatible with EDT V1.0.
2.

EDT defines keypad keys in terms of nokeypad functions.

NOTE
If you are satisfied with keypad or line editing and you do not
plan to redefine keys, you may wish to skip this chapter.

Session 1

Ire.
This session describes how to insert text, move the cursor, and save the
buffer contents as a file.

4-1

Starting a Nokeypad Editing Session
Start no keypad editing and create the file BC.DAT:

e,jit/edt bc.dat (BIT)
file does not exist

"Input file does not exist" means that there is no file named "BC.DAT" in
your account.
Enter the SET NOKEYPAD (which you can abbreviate to "set nokey") and
CHANGE (abbreviated to "c") commands to start nokeypad editing:

The screen clears and the cursor appears over the [EOB] (End-Of-Buffer)
symbol at the upper left:

Entering Commands
Nokeypad commands are referred to in this chapter by their names, such as
"Select". However, they must be entered with specific abbreviations, such
as SEL for Select and PAR for Paragraph. (It does not matter whether you
use uppercase or lowercase when you type them.)
When you type the first character of a nokeypad command, the cursor
jumps to the bottom of the screen and stays there until you complete the
command by pressing m . For example, enter the Advance command by
typing "adv". (The Advance command sets the direction of cursor movement forward.)

4-2

Nokeypad Editing

adv

ad ,! ::::

When you press m to complete the command, the cursor returns to its
previous location on the screen and the command disappears:
ad,! (Bill

tEOBJ

(Although Advance does not change the appearance of text on the screen, it
affects subsequent cursor movement commands.)

Inserting Text
You insert text in nokeypad editing with the Insert (I) command. Type
Hi m " and insert the following paragraph. The Hi" disappears when you
type the first character of the insertion. Use the DELETE key if you make a
mistake. (When you are inserting text, you can use DELETE to remove text
from the previous line, even if you have pressed the RETURN key.) Then
press (CTRL/Z 1, which does not appear on the screen. The text remains in place
when you complete the insertion:
i (Bill

CIRCULATION - You should be able to (Bill
locate a pulse in the carotid arten',(Bill
I,..,hich is located next to the Adalll's (Bill
apple. If }'OU can't feel the patient's (Bill
pulse "'ithin ten seconds, CPR is (Bill
necessan'. COIIIPress the patient's chest (Bill
fifteen tillles and then appl}' tl.IO Illore(Bill
breaths. Continue this c}'cle until (Bill
III e d i c a I h e I par r i '! e s • (CTRL/ Z )

Nokeypad Editing

4-3

The text is inserted into the buffer and the cursor remains at the end of the
paragraph:

CIRCULATION - You should be able to
locate a pulse in the carotid arterY.
which is located next to the AdaM's
apple. If YOU can't feel the patient's
pulse within ten seconds. CPR is
necessary. COMPress the patient's chest
fifteen tiMes and th~n apply two More
breaths. Continue this cycle until
Medical help arrives.;

[EoB]

Using Entities and Counts
Many nokeypad commands require you to specify an entity of text. An
entity consists of one or more characters that EDT recognizes as a unit.
Some nokeypad entities are:
C - Character
W - Word
L - Line
PAR - Paragraph

ER - End of Range
SEN - Sentence
"string" - String of text
SR - Select Range

You specify the beginning or end of an entity with B or E. For instance, you
can indicate the beginning of a word by typing BW:

The cursor moves back to "a" in the word "arrives":

CIRCULATION - You should be able to
locate a pulse in the carotid arterY.
which is located next to the AdaM's
apple. If YOU can't feel the patient's
pulse within ten seconds. CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help irrives.

[EoB]

4-4

Nokeypad Editing

Unless you specify otherwise, EDT assumes a range to consist of all the text
in the buffer. Therefore, ER (End of Range) signifies the end of the buffer:
er

m
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

{EOB]

A count tells EDT how many entities will be affected by a command, such
as "2sen" for two sentences. Plus ( + ) and minus (-) signs set the direction of
a command, so "-2sen" moves the cursor backward two sentences:
-2sen

The cursor moves to the "c" in "Compress":

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds, CPR is
necessary. ¢ompress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOB]

Nokeypad Editing

4-5

Moving the Cursor
Move the cursor to the beginning of the buffer with the BR command:
br

tBITl

¢IRCULATION - You should be able to
iocate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If )'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

[EOBJ

Move the cursor by characters, words, or lines by specifying the entity. Use
a count to move the cursor more than one entity at a time. The following
examples show how to move the cursor forward three characters, then four
words, and then five lines. (A capital L is used in the examples to avoid
confusion between the lowercase "I" and the number "I".)
3 c tBITl

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If )'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

[EOBJ

4-6

Nokeypad Editing

CIRCULATION - You should ~e able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If }'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arriv"es.

[EOBJ

5L (flIT)

The cursor should be over the "n" in "necessary":

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If }'OU can't feel the patient's
pulse within ten seconds, CPR is
#ecessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

Nokeypad Editing

4-7

Setting the Direction of Cursor Movement
To set the direction of operations backward, use the Back command.
Although the Back command does not change the appearance of the screen,
it affects subsequent commands that involve cursor movement:
bacK tBITl

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If )'OU can't feel the patient's
pulse within ten seconds, CPR is
ffiecessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

Now the cursor movement commands work in reverse:
1I L

tBITl

CIRCULATION - You should be able to
tocate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

4-8

Nokeypad Editing

CIRCULATION - You should be ible to
locate a pulse in the caroti~ arterY,
which is located next to the Adam's
apple. If )'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

CIRCULATION - You shoul~ be able to
locate a pulse in the cirotid arterY,
which is located next to the Adam's
apple. If )'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

Nokeypad Editing

4-9

If you try to move the cursor beyond the beginning or end of the buffer, the
cursor moves as far as it can, and EDT displays a message. Now type:
lIL OOJ

CIRCULATION - You should be able to
locate a pulse in the carotid arterY.
which is located next to the AdaM's
apple. If }'OU can't feel the patient's
pulse within ten seconds. CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

[EOBJ

Set operations forward with the Advance command:
ad lJ OOJ

Now the command works as you intended:
lIL OOJ

CIRCULATION - You should be able to
locate a pulse in the carotid arterY.
which is located next to the AdaM's
apple. If YOU can't feel the patient's
#ulse within ten seconds. CPR is
~ecessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

[EOBJ

4-10

Nokeypad Editing

A plus or minus sign overrides Advance or Backup for the command that
follows the sign. However, a plus or minus sign does not affect any other
commands:
-3L (Bill

CIRCULATION - You should be able to
iocate a pulse in the carotid arterY,
~hich is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

3L (Bill

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the patient's
#ulse within ten seconds, CPR is
riecessarY. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.

[EOBJ

Nokeypad Editing

4-11

Advance and Backup affect many of the functions described in the following
no keypad sessions, such as Delete (D), Undelete (UND), and Substitute (S).

Saving the Text as a File
Finish no keypad editing with the Exit (EX) command. Typing "ex" returns
EDT to line editing:
ex (@)

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If YOU can't feel the patient's
pulse within ten seconds. CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

[EOBJ

To exit from EDT and save the main buffer as a file, enter the EXIT command after the asterisk prompt:
* exit (@)

The system displays the number of lines of text saved in file BC.DAT.

4-12

Nokeypad Editing

Session 2
./

IR-

JLJlI

This session shows how to edit an existing file, clear system messages from
the screen, and use some basic nokeypad editing commands.

Editing a File
Start EDT to edit the file BC.DAT, which you created in Session 1:

edit/edt bc.dat @
1
CIRCULATION - You should be able to
* set nof;e}' @
*c @

The screen clears and then the contents of BC.DAT are displayed:

bIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Ada~'s
apple. If }'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Co~press the patient's chest
fifteen ti~es and then apply two ~ore
breaths. Continue this cycle until
~edical
help arrives.

[EOBJ

Nokeypad Editing

4-13

Refreshing the Screen (REF)
Occasionally another user may send you a message during your editing
session. For example:

¢IRCULATION - You should be able to
focate a pulse in the carotid arterY,
which is located next to the Adam's
app le . If }'OIJ can't feel the patient's
pulse within ten seconds, CPR is
MESSAGE FROM ZAFRIS: Don't let Nancy fix
your car. She plans to replace your fan
belts with sterile !auze.ycle until
medical help arrives.
[EOBJ

You can remove such messages from the screen with the Refresh (REF)
command. When you type REF, the screen clears and then the original text
is restored:
ref

CIRCULATION - You should be able to
focate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and the n apply two more
breaths. Continue this cycle until
medical help arrives.
[EOBJ

4-14

Nokeypad Editing

Adding to the Buffer
You can add text anywhere in the buffer by using the Insert command. In
this example, move the cursor to the end of the buffer to insert text. The ER
command signifies the end of the range of text:
er @

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If }'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medi6al help arrives.
tEOB]

Use the Insert (I) command to enter the following paragraph. The "i" stays
at the bottom of the screen until you start typing. End the insertion with
(CTRL/Z l. The (CTRL/Z ) does not appear when you complete the insertion:
i

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If }'ou can't feel the patient's
pulse within ten seconds, CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
BREATHING - LooK to see ,.,hether the @
patient's chest is rlloving. If }'ou can't@
see rllOI)erllent or hear breathing. place@
your ear next to the patient's rllouth and tn'@
to feel hi~l exhale. Should }'ou@
deterrlline that breathing has stopped,@
use the rllouth-to-rllouth techni9ue and @
gil)e hi~l four 9uicf~ breaths. @
(CTRL/ Z )

[EOB]

Nokeypad Editing

4-15

Again, the cursor stays at the end of the insertion.
You can enter more than one command on a line. For example, assume you
want to insert a blank line before the paragraph you just typed. Move the
cursor back 8 lines with -8L, then insert a blank line with the Insert command. Press (CTRL/Z lto complete the insertion:
-BL i @

(CTRL/Z)

CIRCULATION - You should be able to
locate a pulse in the carotid arterY.
which is located next to the Adam's
apple. If ,'ou can't feel the patient's
pulse within ten seconds. CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.
IREATHING - Look to see whether the
patient's chest is fllOl.ling. If ,'ou can't
see movement or hear breathing. place
your ear next to the patient's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped.
use the mouth-to-mouth techni9ue and
give him four 9uick breaths.
[EOBJ

Moving Text
You can move an entity of text by marking it in a select range, storing the
text in the paste buffer, and then reinserting it elsewhere. The following
example moves the second paragraph to the top of the buffer.
First mark the cursor location as the start of a select range with the Select
command. (This does not affect the appearance of the screen.)

4-16

Nokeypad Editing

seI

tBITl

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If }'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then applY two more
breaths. Continue this cycle until
medical help arrives.
IREATHING - Look to see whether the
'patient's chest is rrlol.ling. If }'OU can't
see movement or hear breathing, place
your ear next to the patient's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped,
use the mouth-to-mouth techni9ue and
give him four 9uick breaths.
[EOBJ

Now mark the rest of the select range. On a VT100, the select range
appears in reverse video, as shown III the example. (Reverse video is a
VT100 feature that highlights parts of the screen.) Although VT52s do not
use reverse video, the select range works the same as on VT100s.
Move the cursor to the end of the paragraph with EPAR. Use "2L" to move
the cursor down two more lines; this includes the blank line after the paragraph. The combination of the Select (sel) and End of Paragraph (epar)
commands places the paragraph in a select range. The cursor is over the
left bracket ([) in the [EOB] symbol.

Nokeypad Editing

4-17

epar2L 00

CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds, CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue . this cycle until
medical help arrives.

•

6REktHiNG~ • • • L~id(t..~.".'.~'~,~.' ~,h~,tbil' • t~i

r@Hhl~'~@@a@~i~~I?\6m~·H),~l.tpAi\a

<s:ee>iii:oi:jli!ii\li!i~to~heafbj<eiithhjs:lplaQe

i~uw~:~rhi~x~kh~f~~~~~hJ[8n~8~(@b'-ttmai~i~nY

)fefer:lT\i.r:ie£h.:lt<bi~at.hti'i~l1a$$t6f>F>e.jf

.,J.i~~t@i~6,-iH\'~.t;.~.~i~~ JJt.h • ,tiC:bj:'i.."'.}~al\jj

~, n{~hU;ir(lI?H· • ~.V~M(#.~.~¥iH$F"

...... ... .. ...

"i"E
" '0"0"]' ..
:::4:::::.·::~>.::

Store the paragraph in the paste buffer with the Cut (cut) and Select Range
(sr) commands. The text disappears from the screen:
cutsr 00

CIRCULATION - You should be able to
locate a pulse in the carotid arterY ,
which is located next to the Adam's
apple . If )'OU can't feel the patient's
pulse within ten seconds , CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths . Continue this cycle until
medical help arrives .

JEOBJ

4-18

Nokeypad Editing

The cursor remains on the [EOB] symbol.
Now move the cursor to the top of the b¢ffer with the Beginning of Range
(BR) command.
br

tIRCULATION - You should be able to
iDeate a pulse in the carotid arterY.
which is located next to the Adam's
apple. If }'OU can't feel the patient's
pulse within ten seconds. CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.
[EOBJ

Reinsert the deleted paragraph with the Paste command:
paste ID

BREATHING - Look to see whether the
patient's chest is IlloI.ling. If }'OU can't
see movement or hear breathing. place
your ear next to the patient's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped.
use the mouth-to-mouth techni9ue and
give him four 9uick breaths.
¢IRCULATION - You should be able to
iDeate a pulse in the carotid arterY.
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds. CPR is
necessary. Compress the patient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.
[EOBJ

Nokeypad Editing

4-19

Move the cursor to the top of the buffer and set cursor movement to Backup
for the next example:
brbacf( (ill)

Locating Text
To locate text in nokeypad editing, you enter a series of characters (called a
"string") in quotation marks.
A string is one or more consecutive characters, as in a word or line. EDT
does not normally distinguish uppercase from lowercase in string searches.
The direction of a search depends on whether Advance or Backup is set. For
example, if you search for the string "patient" with Backup set, EDT displays a message. Type:
"patient" (ill)

Set operations forward with the Advance command and try again:
adv (ill)
"patient" (ill)

BREATHING - Look to see whether the
c h est i s 1110 I) i n g. I f YOU can't
~ee movement or hear breathing, place
your ear next to the patient's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped,
use the mouth-to-mouth technique and
give him four quick breaths.
.~a tie nt's

4-20

Nokeypad Editing

The cursor moves to the first occurrence of the search string "patient". Use
a count to find other occurrences of "patient". In the following example, "3"
means to find the third occurrence:
3 patient"
l

BREATHING - LooK to see whether the
patient's chest is IlloI.Jing. If }'OIJ can't
see movement or hear breathing. place
your ear next to the patient's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped.
use the mouth-to-mouth techni9ue and
give him four 9uicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY.
which is located next to the Adam's
apple. If YOU can't feel the patient's
pulse within ten seconds. CPR is
necessary. Compress the ¥atient's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arrives.
[EOBJ

If you forget to put quotation marks around the search string, EDT displays
a message:
patient

Nokeypad Editing

4-21

Use "-2" to find the second occurrence of "patient" back from this point:
-2 patient" @
I

BREATHING - Look to see whether the
patient's chest is flloving. If }'OU can't
see MoveMent or hear breathing, place
your ear next to the iatient's Mouth and try
to feel hiM exhale. S~ould YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If }'OU can't feel the patient's
pulse within ten seconds, CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
[EOBJ

Move the cursor to the top of the buffer for the next example:
br @

Substituting Text
The Substitute command (S/s1 Is2!) replaces one string with another. Substitute Next (SN) replaces the next occurrence of the string.
Slashes (I) delimit substitute strings in the following examples. (A delimiter separates one string from another on the same command line.) You do
not need to use quotation marks around the strings, unless you are using
the quotes as delimiters. You can use other characters as delimiters
instead, such as & or %. Do not use slashes if there is a slash in one of the
strings.

4-22

Nokeypad Editing

Replace "patient" with "victim" as shown:
sIp a tie n t I l.J i c t i 111/@

BREATHING - LooK to see whether the
vic t i f11:{.S C h est i SIll 0 v i n g. If,' 0 1.1 can't
see M00~Ment or hear breathing, place
your ear next to the patient's Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If YOU can't feel the patient's
pulse within ten seconds. CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
[EOBJ

Notice that EDT makes the substitution and that the cursor stays over the
apostrophe in the word "victim's".
Once you have used the Substitute command, you can then use Substitute
Next (SN) to replace subsequent strings:
sn @

BREATHING - LooK to see whether the
victiM'S chest is Moving. If YOU ca n 't
see MoveMent or hear breathing, place
your ear next to the victiM!~ Mouth and trY
to feel hiM exhale. Should ;01.1
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM'S
apple. If ,'01.1 can't feel the patient's
pulse within ten seconds, CPR is
necessary. COMPress the patient's chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
[EOBJ

Nokeypad Editing

4-23

You can repeat the operation by assigning a count, such as "4sn" to substitute the next 4 occurrences. If the count requests more substitutions than
are possible, EDT makes all the substitutions it can and displays a
message:
4sn

m
BREATHING - LooK to see whether the
victiM'S chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear next to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth technique and
give hiM four quicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If YOU can't feel the victiM'S
pulse within ten seconds, CPR is
necessary. COMPress the victi~rs chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
[EOBJ

Updating the Existing File
To end the nokeypad session and return to line editing, enter the Exit (EX)
command:
ex

m
BREATHING - LooK to see whether the
victiM'S chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear next to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth technique and
give hiM four quicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If YOU can't feel the victiM'S
pulse within ten seconds, CPR is
necessary. COMPress the victiM'S chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
[EOBJ

4-24

Nokeypad Editing

Save the buffer contents in file BC.DAT by typing the EXIT command after
the line editing asterisk:

(

Session 3
..J

Ire..

.TLJ]

This session shows how to delete and reinsert text, recover from a system
failure, and end the session without saving your edits.

Editing the Updated File
Start EDT to edit the latest version of BC.DAT:

edit/edt bc.dat ru
1
BREATHING - Look to see whether the

iREATHING - Look to see whether the
~ictiM'S chest is Movin~. If YOU can't
see MoveMent or hear breathin~, place
your ear next to the victiM'S Mouth and try
to feel hiM exhale. Should YOU
deterMine that breathin~ has stopped,
use the Mouth-tO-Mouth technique and
~ive hiM four quick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If YOU can't feel the victiM'S
pulse within ten seconds, CPR is
necessary. COMPress the victiM'S chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.
[EOBJ

Nokeypad Editing

4-25

Deleting Text
You delete text by entering the Delete (D) command followed by an entity,
as in DW (delete word) or DSEN (delete sentence).
In this example, move the cursor to the entity you want to delete, which is
the sentence beginning with the second occurrence of "if". (Be sure to use
quotation marks in "if", or you will get an error message.)
2"if"

(Bill

BREATHING - Look to see whether the
victiM'S chest is Movin~. If YOU can't
see MoveMent or hear breathin~, place
your ear next to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathin~ has stopped,
use the Mouth-tO-MOUth techni~ue and
~ive hiM four ~uick
breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. $f YOU can't feel the victiM'S
pulse within ten seconds, CPR is
necessary. COMPress the victiM'S chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

Enter the Delete command and the Sentence entity to delete a sentence:
dsen

(Bill

The sentence is deleted and the cursor moves to the "C" in "Compress":

BREATHING - Look to see whether the
victiM'S chest is Movin~. If YOU can't
see MoveMent or hear breathin~, place
your ear next to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathin~ has stopped,
use the Mouth-tO-MOUth techni~ue and
~ive hiM four ~uick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
a p pie . :¢: o ITl pre s s t he'.. i c t i Ill'S C h est
fifteen tiMes and then apply two More
breaths . Continue this cycle until
Medical help arrives.

4-26

Nokeypad Editing

You can also specify multiple commands, such as "delete two lines and
delete three words". The cursor moves to the first "c" in "cycle":
d2Ld3w ID

BREATHING - Look to see whether the
victim's chest is moving. If YOU can't
see movement or hear breathing, place
your ear next to the victim's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped,
use the mouth-to-mouth technique and
give him four quick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY ,
which is located next to the Adam's
C)'cle until
medical help arrives.
[EOB]

Undeleting Text
The last character, word, or line you delete is stored in the character, word,
or line buffer. You can undelete these entities with "undc" (for characters),
"undw" (for words), and "undL" (for lines). However, only the last deleted
entity is restored.
The following two commands restore the word and line entities that were
deleted in the previous example:
'.In dt.-'

BREATHING - Look to see whether the
victim's chest is moving. If YOU can't
see movement or hear breathing, place
your ear next to the victim's mouth and trY
to feel him exhale. Should YOU
determine that breathing has stopped,
use the mouth-to-mouth technique and
give him four quick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
Ihi s cycle until
~edical help arrives.
[EOB]

Nokeypad Editing

4-27

undL (Bill

BREATHING - LooK to see whether the
victiM'S chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear next to the victiM'S Mouth and try
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
fifteen tiMes and then apply two More
this c}'cle until
Medical help arrives.
[EOBJ

Only the last deleted entity is stored for reinsertion. Notice that the word
"this" and the sentence beginning with "fifteen" are restored a second time:
un dLun d",. (Bill

BREATHING - LooK to see whether the
victiM'S chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear next to the victiM'S Mouth and try
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uicK breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
¥~is fifteen tiMes and then apply two More
fifteen tiMes and then apply two More
this c}'cle until
Medical help arrives.
[EOBJ

4-28

Nokeypad Editing

Restoring Your Work After a System Failure
Sometimes the computer system experiences problems that force it to shut
down. Fortunately, EDT creates a journal file each time you start an editing session to protect your work. The journal file contains a copy of each
edit you make to a buffer. Therefore, if you use the RECOVER qualifier
when you restart EDT, you can recover the work from your editing session.
EDT gives the journal file the extension .JOU. Because you are editing a
file named BC.DAT, EDT names the journal file BC .JOU. When you use
the RECOVER qualifier, EDT looks for BC .JOU and merges the journal file
edits into BC.DAT. You can use the journal file to restore your edits even
when there are repeated system failures. The journal file is deleted when
you end the session or log out.
To simulate a system failure, use the Extend (EXT) command, which allows
you to enter line editing commands. Then type QUIT /SAVE and press m:
ext "Il.lit/sal.le 00

Your edits have been saved in file BC.JOU.

NOTE
Typing QUIT /SAVE is not a standard procedure and is used
here for instructional purposes only.

Start EDT and use the RECOVER qualifier to restore your work. EDT
repeats the previous editing session at a much faster pace. (For lAS systems, turn back to the last section in Part I entitled "A Note to lAS Users"
before recovering your edits.)
Type the following command line, and watch the screen as you press m :

edit/edt bc.dat/recol.ler 00

Nokeypad Editing

4-29

When EDT finishes processing the journal file, the buffer contents are
restored and you can continue editing. (However, not all the text may appear on the screen.) The cursor returns to its location prior to the simulated
system crash:

see MoveMent or hear breathing, place
your ear next to the victiM'S Mouth and try
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uick breaths.
C I RCULAT ION - You 's h 0 u I d be a b l e t 0
locate a pulse in the carotid arterY,
which is located next to the AdaM's
this fifteen tiMes and then apply two More
fifteen tiMes and then apply two More
f;:h i s c}' C leu n til
Medical help arrives.
[EOBJ
ext 9uit/save

A real system crash can lose the last few characters you typed, so examine
the screen carefully after a recovery to determine where to resume editing.
Verify the buffer contents with the Refresh command:
ref (@)

BREATHING - Look to see whether the
victiM'S chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear next to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
&h i s f i f tee n t i (II e san d the nap pI}' t 'A' 0
fifteen tiMes and then apply two More
this c}'cle until
Medical help arrives.
[EOBJ

4-30

Nokeypad Editing

(110 r e

Ending the Session Without Saving Your Edits
If you decide to end the editing session without saving your edits, use the
QUIT command to end the nokeypad session:
quit @

The original version of BC.DAT remains unchanged, and your edits from
this session are not copied to a file. The journal file is not saved, so you
cannot restore your edits with the RECOVER qualifier.

Nokeypad Editing

4-31

---------------------

CHAPTER V.

---------------~~~~

ADVANCED EDT

Session 1
Merging Files and Inserting Text
Moving Text into Buffers
Writing to a File

Session 2
The SET and SHOW Commands

Session 3
The Startup Command File

Session 4
Redefining Keys

)

Chapter V.

Advanced EDT

EDT offers many time-saving advanced features. This chapter outlintls
some of EDT's special capabilities. Session 1 uses line editing, so all users
of EDT can try it at their terminals. Sessions 2 through 4 require a VT52 or
VT100 terminal for keypad editing.
For a more detailed discussion of EDT's advanced features, refer to the
EDT Editor Manual.

r
Session 1
[c

.JLJ]I

This session shows how to move several files into the main buffer and then
insert more text. Next, it explains how to divide the text into separate
buffers and how to copy text into a new file.
Merging Files and Inserting Text
You can merge several files during an editing session. If you completed
the keypad, line, and nokeypad sessions, you can combine files CPR.DAT,
AIRWAY.DAT, and BC.DAT into a single file named MEDIC.DAT. (If you
did not try all the sample sessions in this manual and have only one or two
files, simply repeat anyone file name for the effects of this session.)

5-1

When you start an editing session, EDT automatically provides you with
a buffer named MAIN. Creating buffers other than MAIN is useful for
moving and. storing text. You can use any name your system allows when
creating a buffer, as long as you use it consistently. In this editing session,
you create two buffers by assigning them the names BUFI and BUF2.
'Fhe following example shows how to use the INCLUDE command (abbreviated to "inc") to move text from files outside of EDT into the main buffer:

edit/edt rlledic.dat (Bill
Input file does not exist

[EOBJ
* inc cpr.dat (Bill
* inc air,.'ay.dat (Bill
* inc bc.dat (Bill

*:: : :.

The text from the three files is inserted into the main buffer.
Your commands affect only one buffer at a time: the current buffer. You
specify a buffer as "current" by typing an equal sign ( = ) before the buffer
name. You can think of the equal sign as a buffer designator. For example,
display the contents of the buffer named MAIN as shown in Figure 5-l.
Type (cTRL/s land(cTRL/Q lifyou need to stop and restart output at your terminal.

5-2

Advanced EDT

=frla i n @J
2

3
4
5
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[EOBJ
*,:;:::

Shortl}' after cOfrlPleting his nOI)el "A Death in
the Farrlil}'," Jarrles Agee hailed a taxi in Nel.1
York. He was dead before reaching his
destination, the victiM of a heart attack.
Had the cab driver known CPR, Agee's life
Might have been saved.
Cardio-PulMOnary Resuscitation relies on a
cOMbination of rescue breathing and cardiac
cOMPressions. Rescue breathing, or
Mouth-tO-Mouth resuscitation, involves
filling the victiM'S lungs with air,
increasing the level of oxygen in the blood
streaM. Cardiac cOMPressions applied to the
chest then force this blood through the
circulatory SysteM.
If YOU COMe across an unconscious victiM, the
following fundaMentals (known as the A-B-C's)
will help you deterMine whether CPR is
necessan':
AIRWAY - When the victiM'S head is
tilted forward, the tongue May block the
throat, Making breathing iMPossible. If
this seeMS to be the case, tilt the
victiM'S head back. This siMPle
procecure could be enough to open the
air passage. (NOTE: If there is a
possible neck inJury, use the Jaw-lift
Maneuver instead.)
BREATHING - Look to see whether the
victiM'S chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterMine that breathing has stopped,
use the Mouth-tO-MOUth techni9ue and
give hiM four 9uick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the AdaM's
apple. If }'OU can't feel the 1.lictirrl'S
pulse within ten seconds, CPR is
necessary. COMPress the victiM'S chest
fifteen tiMes and then apply two More
breaths. Continue this cycle until
Medical help arrives.

Figure 5-1:

Sample Text in the Main Buffer

Advanced EDT

5-3

The contents of the three files appear in sequence-CPR.DAT,
AIRWAY.DAT, and BC.DAT-as you included them.
You can edit the text as you did in the previous sessions. For example, add
a title by displaying the first line and using the INSERT command. (Enter
about 8 spaces before the title if you want it to look centered.) Then insert a
blank line with m and complete the insertion with (GTRL! z J:

Shortl}' after cOI11Pleting his novel "A Death in
The Use and Value of CPR ®rn

®rn
t1RL/Z)

Shortl}' after compieting his nouel "A Death in

To check the results, display the first few lines of the buffer. Because you
inserted text before the first line, the inserted lines have fractional numbers. Therefore, start the range with "0" and display text through line 4 as
shown:

* 0:£1 ®rn

0.1

The Use and Value of CPR

0.2
1

2
3
£I

5-4

Advanced EDT

Shortl}' after completing his novel "A Death in
the FalTlil}' ," Jallles Agee hailed a taxi in NeiAl
York. He was dead before reaching his
destination, the victim of a heart attack.

Add the following paragraph at the end of the buffer:

When performed properly, CPR greatly ®rn
increases the survival chances of a heart ®rn
attack victim. ®rn
!::TRL/IZ)

[EOBJ

*,:,:,:

Check the insertion by displaying lines 50 through the end:

* 50:e ®rn
50

medical help arrives.

52
53

54
[EOBJ

When performed properly, CPR greatly
increases the survival chances of a heart
attack l!ictifll.

*,:::::

Moving Text into Buffers
It is useful to create buffers when moving groups of lines from the main
buffer. Create each buffer by naming it during the MOVE operation. (You
can abbreviate the MOVE command to "m".)

Advanced EDT

5-5

In the following example, the equal signs indicate the current buffer; this
way you enable the new buffer to accept text. Move lines 1 through 17 to
the buffer you named BUFl:

* rtl 1:17 to =bufl @
17 lines rlloved

The text moves into BUFl. Notice that BUFI is now the current buffer:

....1

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16

Shortl}' after corllPletin!il his nO'.Jel "A Death in
the Farllil}'," Jarlles A!ilee hailed a taxi in Ne'.,
York. He was dead before reachin!il his
destination, the victim of a heart attack.
Had the cab driver known CPR, A!ilee's life
mi!ilht have been saved.
Cardio-Pulmonary Resuscitation relies on a
combination of rescue breathin!il and cardiac
compressions. Rescue breathin!il, or
mouth-to-mouth resuscitation, involves
fillin!il the victim's lun!ils with air,
increasin!il the level of OXY!ilen in the blood
stream. Cardiac compressions applied to the
chest then force this blood throu!ilh the
circulatory system.

[EDBJ
*:}:

Now move the text in lines 33 through the end of the main buffer to the
buffer you name BUF2. Note that if you do not first make MAIN the current buffer, the buffer contents are not moved:

to =buf2 @
lines moved

33:e

5-6

Advanced EDT

The FIND command, abbreviated here to "f', makes MAIN the current
buffer without displaying the contents of MAIN:

=main IBTII

Now you can move lines 33 to the end into BUF2:

33:e to =buf2 IBTII
lines moved

Display the contents of BUF2:

2
3
4
5
6
7
8
9
10
11
12
13

14
15
16
17

18
19

20
21

BREATHING - Look to see whether the
victim's chest is movin~. If YOU can't
see movement or hear breathin~, place
your ear to the victim's mouth and trY
to feel him exhale. Should YOU
determine that breathin~ has stopped,
use the mouth-to-mouth techni9ue and
~ive him four 9uick breaths.
CIRCULATION - You should be able to
locate a pulse in the carotid arterY,
which is located next to the Adam's
apple. If YOU can't feel the victim's
pulse within ten seconds, CPR is
necessary. Compress the victim's chest
fifteen times and then apply two more
breaths. Continue this cycle until
medical help arri0es.
When performed properly, CPR ~reatlY
increases the survival chances of a heart
attacf; victill!.

[EOBJ

*::::::

Notice that EDT renumbers the lines in the buffer so that they start with 1
and increase in increments of 1.

Advanced EDT

5-7

You can move the contents of a buffer into another buffer. If you choose,
you can move a copy of a buffer's contents with the COPY command. In the
following example, move the contents of BUFI and a copy of BUF2 back
into the main buffer. (You can abbreviate the COPY command to "co".)
Specify the first line of the main buffer with = MAIN 1 to ensure proper
placement of the text.

* co =buf2 to =Main 1 (B@
22 lines copied
* M =buf1 to =Main 1 (B@
17 lines frloved

BUFI is now empty, while BUF2 is unchanged. To check the contents of
each buffer, type the commands shown:

* =buf1 (B@
[EOBJ
* =buf2 1dO,20,e (B@
BREATHING - Look to see whether the
10
CIRCULATION - You should be able to
20
When perforMed properly, CPR greatly
[E OBJ

Make MAIN the current buffer, and then display the first five lines to
check its contents:

* f =frlain (B@
* 0#5 (B@
0.1

The Use and Value of CPR

0.2

0.3

o.a

0.5

BREATHING - Look to see whether the
victiM's chest is Moving. If you can't
see MoveMent or hear breathing, place

Because you moved text from other buffers, many of the lines have fractional line numbers.

5-8

Advanced EDT

Writing to a File
The WRITE command (which you can abbreviate to "wr") lets you move a
range of text to a file outside of EDT. This means you can copy text to a new
file without affecting your editing session.
For example, put a copy of lines 23 through the end of buffer MAIN to a file
that you name EMT.DAT:
* wr emt.dat 23:e

®rn

The system displays a message telling you how many lines are written to
file EMT.DAT. File EMT.DAT now contains lines 23 to 32 of buffer MAIN.
Notice that the WRITE command does not delete text from your editing
session but merely copies it:

* t 20:e
20
21
22
23
24
25
26
27
28
29
30
31
32
[EOBJ
*:':

®rn

will help YOU determine whether CPR is
necessan'.
AIRWAY - When the victim's head is
tilted forward. the ton~ue may blocK the
throat. maKin~ breathin~ impossible. If
this seems to be the case. tilt the
victim's head back. This simple
procedure could be enou~h to open the
air passa~e. (NOTE: If there is a
possible necK inJury. use the Jaw-lift
maneuver instead.)

The WRITE command is provided for copying text to new files. However, if
you use WRITE to move text into an existing file, you overwrite text in that
file. The correct way to move text from one file into another is as follows:
1. WRITE the text into a new file.

2. End the current editing session and use EDT to edit the other file.
3. Use INCLUDE to move text into the file.
End the session with the EXIT command. You can give the file a name
other than MEDIC.DAT by typing a file name after EXIT:
* exit health.dat

®rn

Advanced EDT

5-9

The system displays a message telling how many lines are In the file
HEALTH.DAT.

NOTE
You can try the rest of the examples in this chapter only if
you have a VT52 or VT100 terminal.

r
Session 2
./

.TL..Jl l

[c.

This session describes two of the SET and SHOW commands: SET LINES
and SHOW SCREEN.

The SET and SHOW Commands
You can establish many of EDT's operating characteristics with SET commands and then display these characteristics with SHOW commands.
For example, you can use SET to limit the number of lines on the screen to
eight. The SET LINES command is useful if you have a video terminal that
is connected to a computer via telephone wires. It is much faster to
transmit 8 lines than the default 22 lines.

edit/edt health.dat
1
The Use and Value of CPR
* set lines 8
*c

The Use and Value of CPR
BREATHING - Look to see whether the
victiM's chest is Moving. If YOU can't
see MoveMent or hear breathing, place
your ear to the victiM'S Mouth and trY
to feel hiM exhale. Should YOU
deterrlline that breathing has stopped, .

5-10

Advanced EDT

Move the cursor down one section of text. The cursor is placed on the last
line of text on the screen. Notice that no more than eight lines are
displayed:

~ II I

SECT

Shortly after completing his novel "A Death in
the Farrlil)' ," Jarrles Agee hailed a taxi in NelAI
YorK. He was dead before reaching his
destination, the victim of a heart attacK.
Had the cab driver Known CPR, Agee's life
might have been saved.
tardio-Pulmonary Resuscitation

relies on a

Press (CTRL/Z ) to return to line editing:

EDT displays the asterisk prompt:

* : : ,:
The SHOW commands let you display certain characteristics of your editing session. For example, enter the SHOW SCREEN command to see the
maximum width of a character display across the screen:

* shol..l screen 00
80

*::::,:

"80" signifies that up to 80 characters can be displayed across the screen.
You can get more information about the attributes you can set and display
with the HELP SET and HELP SHOW commands. The SET and SHOW
command values are lost when you end the editing session.
Enter the EXIT or QUIT command after the asterisk to either save or
delete the contents of the main buffer. Because you made no edits to the
file, neither EXIT nor QUIT changes the contents of the file
HEALTH.DAT. (EXIT merely creates an identical copy to replace the contents of HEALTH.DAT.)

Advanced EDT

5-11

r
Session 3
[c

.JLJlI

This session describes how to create and use a startup command file. It also
gives reasons for assigning it a name other than EDTINI.EDT.

The Startup Command File
You can create a file of commands that affect other editing sessions. These
commands must be valid EDT line editing commands. When you begin an
editing session, EDT automatically checks to see if you have created a
command file named EDTINI.EDT.
If you name the startup file EDTINI.EDT, EDT applies it to every editing
session unless you specify otherwise. For example, create a two-line
startup file as shown:

edit/edt edtini.edt @
Input file does not exist

[EOBJ
*i @
set ~lode chan9'e @
set lines 5 @

[EOBJ

(CTRL/ l )

* exit @

If you now start EDT, the SET MODE CHANGE command causes EDT to
begin the session in keypad editing. The SET LINES command limits the
display of text to five lines. Create a file to be named COURSE.DAT, as
shown:
edit/edt course.dat ~
Input file does not exist

~EOBJ

5-12

Advanced EDT

When you type the following paragraph, notice that the top lines and the
[EOB] symbol are not displayed when you enter more than five lines:

There are many local a9'encies (!ill)
offerin9' courses to help the (!ill)
laYlllan prepare for Illedical (!ill)
elller9'encies. Anyone can learn (!ill)
the essential lifesavin9' (!ill)
techniques. (!ill)
(!ill)

The screen now looks as follows :

emer9'encies. Anyone can learn
the essential lifesavin9'
techniques.

You can change the SET LINES 'attribute by typing SET LINES followed
by a number. Press (CTRL/ Z ) to get the line editing prompt:

*set lines 22
*c (!ill)

(!ill)

There are many local a9'encies
offerin9' courses to help the
layman prepare for medical
emer9'encies. Anyone can learn
the essential lifesavin9'
techniques.

Advanced EDT

5-13

You need not name the startup command file EDTINI.EDT. However,
when you start an editing session, EDT searches only for EDTINI.EDT. If
you give the startup file a different name, you must enter this name in the
command line when you start the editing session. Refer to the EDT Editor
Manual for command lines to use on your system.
A name other than EDTINI.EDT is useful when:
• You need more than one startup file
• You prefer to specify whether you want the command file to take effect
• You need to remember what a specific command file does by giving it a
mnemonic name, such as SCREEN.EDT for screen attributes
If you have a startup command file that you do not want to affect an editing
session, you can specify INOCOMMAND in the command line to suppress
the effect of the command file . Because command lines and their attributes
vary, consult the EDT Editor Manual for specific information about using
command files on your system.
To prepare EDT for the next session, press (CTRL/ Z ) ,which returns EDT to
line editing:

Session 4
[C.

7LJl

This session describes two ways in which to redefine keys .

Redefining Keys
You can assign other functions to the keys you use in keypad editing. The
ability to redefine keys means that you can adapt existing functions or
create new ones. The DEFINE KEY command (which can be abbreviated to
"def key") and nokeypad commands are used here in the definition of
functions.
One example of redefining a key is to assign it a different function, such as
changing the PAGE function on keypad key 7 to the nokeypad command

5-14

Advanced EDT

Refresh (REF). Enter the command line exactly as shown. The period in the
Refresh command ("ref.") tells EDT to perform the command when you
press the key:

* def Key 7 as "ref," (BIT)

* ",:,:

Return to keypad editing with the CHANGE command, abbreviated here
to "c":

N ow when you press keypad key 7, the Refresh command takes effect
instead of the PAGE function:
7REFRESH
.;.:.:.:.:.>:-:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.

CQMMANd

7REFRESH

............................................ .

CPMMANP

In the next example, you replace the BACKUP function on keypad key 5
with a function that inserts a line of text. (The alternate function of the
key, which is the TOP function, is unaffected.)
Press (CTR L/Z ) for the line editing prompt:

EJ
Assign a new definition to the keypad key labeled 5. (Note that you insert
the "A" and "z" characters instead of pressing (CTRL/ z ) in the
definition.)

* def Key 5 as "iYoUt tOOt can learn CPR,·z," (BIT)

*:,:::,

Advanced EDT

5-15

The DEFINE KEY command tells EDT to redefine key 5. The command to
insert the text is enclosed in quotation marks. Within the quotes are the
following components:
• The INSERT command ("i")
• Text to be inserted
• The command to complete the insertion (" Z ")
A

• A period (" . ") so the command takes effect as soon as you press the key

It is important that you include the period in the command definition.
Omitting it causes deferred command execution, which is useful for other
purposes. See the EDT Editor Manual for more detail.
Now when you press the keypad key labeled 5 during keypad editing, the
text is inserted:
*c (iill)

There are Many l oca l a~enc i es
offerin~ courses to help the
laYMan prepare for Medical
eMer~encies.
Anyone can learn
the essential lifesavin~
techniques.

[EOBJ

5 INSERT

+Q~ J

There are Many local a~encies
offerin~ cOurses to help the
laYMan prepare for Medical
eMer~encies.
Anyone can learn
the essential lifesavin~
techniques.
You, too, can learn CPR.y

[EOBJ

5-16

Advanced EDT

Save the contents of the buffer as a file with the EXIT command:

ENTER

CO'IlIlland:

exit

ENTER

SUBS

The system displays a message telling you how many lines of text are in the
file. The exact message varies from system to system.
.

NOTE
Delete file EDTINI.EDT from your directory immediately, so
it will not affect future editing sessions. Check your system
documentation for instructions on how to delete files.
Key definitions stay in effect throughout the editing session and are deleted
when you use EXIT or QUIT. You can save key definitions, however, by
including them in a startup command file.
Refer to the EDT Editor Manual for more information about the features
of EDT.

Advanced EDT

5-17

INDEX

Index
A
Abbreviating commands in line editing, 3-1
ADV (Advance) command, 4-10
ADVANCE function, 2-11
Arrow keys, 2-10
Asterisk prompt in line editing, 3-2

BACK command, 4-8
BACK SPACE key, 2-17
BACKUP function, 2- 11
BOTTOM function, 2- 16
BR (Beginning of Range) command, 4-6, 4-19
Buffer
adding text to, 2-16, 3- 9, 4-15
creating a, 5-2
current, 5-2
definition of, 1-1
MAIN,5-2
moving text into, 5-5 to 5-8
PASTE,2-17
use in editing files, 1-4

c
CHANGE command
to start keypad editing, 2- 3
to start nokeypad editing, 4-2
CHAR function, 2-11
Characters
deleting and inserting, 2-28
restoring deleted, 2-29
Colon (:) in range specifications, 3- 7
Comma (,) in range specifications, 3- 7
Command
abbreviating in line editing, 3- 1
ADV (Advance), 4-10
BACK,4-8
BR (Beginning of Range), 4-6, 4-19
CHANGE, 2-3, 4-2
COPY, 5-8
CUT,4-18
D (Delete), 4-26
DEFINE KEY, 5- 14
definition of, 1-2
DELETE, 3-16
to enter in line editing, 3-2
to enter in nokeypad editing, 4-2

Command (Cont.)
EPAR (End of Paragraph), 4-17
ER (End of Range), 4-5
EXIT (in keypad editing), 2- 13, 2- 27
EXIT (in line editing), 3- 8, 3-15
Exit (in nokeypad editing), 4-12, 4-24
FIND,5-7
HELP, 3- 5
I (Insert), 4-3
INCLUDE, 5- 2
INSERT, 3- 2, 3- 10, 5-4
INSERT END, 3- 9
MOVE, 3-11, 5- 5
nokeypad search, 4-20
nokeypad substitute (S/SI/S2), 4-22
Null,3- 6
Paste, 4-19
QUIT (in keypad editing), 2- 38
QUIT (in line editing), 3-19
QUIT (in nokeypad editing), 4-31
QUIT (with unedited file), 5-11
REF (Refresh), 4-14, 4-30
REPLACE,3-17
RESEQUENCE, 3-11
SEL (Select), 4-16
SET,5- 10
SET LINES, 5- 10 to 5- 13
SET MODE CHANGE, 5-12
SET NOKEYPAD, 4-2
SET TERM, 2-4
SHOW, 5- 10
SHOW SCREEN, 5- 11
startup command file, 5- 12
SUBSTITUTE (line editing), 3- 14
Substitute (nokeypad editing), 4-22
SUBSTITUTE NEXT (line editing), 3-14
Substitute Next (nokeypad editing), 4-22
SUBSTITUTE WHOLE, 3- 15
TYPE,3- 6
TYPE ALL, 3- 13
TYPE WHOLE, 3-6
UND (Undelete), 4-27
Undelete Line (nokeypad), 4-28
WRITE,5-9
COMMAND function, 2- 13
Command line, 1- 5
COPY command, 5- 8
Counts, in nokeypad editing, 4-4
CTRL key, description of, 1- 1
CTRLlQ, to restart output to terminal, 5-2

Index-l

CTRL/S, to stop output to terminal, 5-2
CTRL/U, to erase line, 2-32
CTRL/W
after file recovery, 2-37
to refresh screen, 2-15
CTRLlZ
to end INSERT command, 3-2
in nokeypad text insertion, 4-3, 4-15
Current buffer, 5-2
Cursor
description of, 1-2
movement in keypad editing, 2-7
movement in nokeypad editing, 4-6
setting keypad direction of, 2-11
setting nokeypad direction, 4-8
CUT command, 4-18
CUT function, 2-18

o
DEFINE KEY command, 5-14
DEL C function, 2-29
DEL EOL function, 2-33
DEL L function, 2-35
DELETE command
in line editing, 3-16
in nokeypad editing, 4-26
DELETE key, 2-4, 2-28
Deleting text
in keypad editing, 2-28 to 2-35
in line editing, 3-16
in nokeypad editing, 4-26
Delimiter
in line editing, 3-14
in nokeypad editing, 4-22
E
Editor, definition of, 1-2
EDTINLEDT file
to delete, 5-17
description of, 5-12
how to suppress, 1-6
ENTER function, 2-13
EOB symbol
in keypad editing, 2-4
in line editing, 3-2
in nokeypad editing, 4-2
EOL function, 2-9
EPAR (End of Paragraph) command, 4-17
Equal sign (=) and current buffer, 5-2
ER (End of Range) command, 4-5
EXIT command
to end keypad editing, 2-13, 2-27
to end line editing, 3-8, 3-15
to end nokeypad editing, 4-12, 4-24

Index-2

File
creating a, 1-4f
definition of, 1-2
deleting EDTINLEDT, 5-17
description of EDTINLEDT, 5-12
editing a, 1-5f, 2-14
merging, 5-1
restoring after system failure, 2-36
saving in keypad editing, 2-13
saving in line editing, 3-8
saving in nokeypad editing, 4-12
suppressing EDTINLEDT, 1-6
updating in keypad editing, 2-27
updating in line editing, 3-15
updating in nokeypad editing, 4-24
writing text to a, 5-9
FIND command, 5-7
FIND function, 2-20
FNDNXT function, 2-20
Fractional line numbers, 3-10, 5-4
Function
ADVANCE, 2-11
BACK SPACE, 2-17
BACKUP, 2-11
BOTTOM, 2-16
CHAR,2-11
COMMAND, 2-13
CTRL/U, 2-32
CTRL/W, 2-15, 2-37
CUT, 2-18
definition of, 1-2
DEL C, 2-29
DEL EOL, 2-33
DEL L, 2-35
DELETE, 2-28
ENTER,2-13
EOL,2-9
FIND,2-20
FNDNXT,2-20
and GOLD key, 2-2
HELP, 2-5
LINE,2-8
LINE FEED, 2-30
OPEN LINE, 2-17
PASTE, 2-20
RESET,2-18
SECTION,2-12
SELECT, 2-18
SUBS, 2-23
TOP, 2-7
UND C, 2-29
UND L, 2-33
UND W, 2-31
use in keypad editing, 2-2
WORD,2-11

GOLD key, 2-2

H
Help facility
exiting from, 2- 7
HELP command, 3-5
HELP key, 2- 5
Help text, 3-5f
purpose of, 1- 3

I (Insert) command, 4-3
lAS, a note to users, 1- 7
INCLUDE command, 5-2
INSERT command, 3-2, 3- 10, 5- 4
INSERT END command, 3-9

J
Journal file
in keypad editing, 2-36
in line editing, 3- 18
in nokeypad editing, 4-29

K
Keyboard
definition of, 1-2
VT100, 2-1£
VT52,2- 1£
Keypad, definition of, 1- 2
Keypad editing, 2-1. See also Function
description of, 2- 1
ending a session, 2- 13, 2- 27, 2- 38
inserting text, 2- 4
and SET TERM command, 2- 4
starting a session, 2- 3
using keypad functions, 2- 2
Keys
BACK SPACE, 2- 17
CTRL/Q,5- 2
CTRL/S, 5- 2
CTRL/U, 2-32
CTRL/W, 2-15, 2-37
CTRL/Z, 4-3, 4-15
DELETE, 2- 4, 2- 28
ENTER,2- 13
LINE FEED, 2- 30
RETURN,2- 4
Keys, redefining, 5- 14 to 5- 16

L
Line editing, 3-1. See also Command
abbreviating commands, 3- 1
description of, 3- 1
ending a session, 3-8, 3-15, 3-19
starting a session, 3-2
LINE FEED key, 2-30
LINE function, 2-8
Line numbers, resequencing, 3-11
Lines
deleting in keypad editing, 2-32 to 2-35
deleting in line editing, 3-16
deleting in nokeypad editing, 4-26
displaying individual, 3-6
inserting blank, 2-16, 3-10
numbered in line editing, 3-3
restoring keypad, 2-33
restoring nokeypad, 4-28
M
AM in keypad editing, 2-13
MAIN buffer, description of, 5-2
Mass storage, use of, 1-4
Merging files, 5-1
Messages, clearing from screen, 2-15, 3-8,
4-14
Minus/Plus signs, directing cursor with, 4-11
MOVE command, 3-11, 5-5
Moving text into buffers, 5-5 to 5- 8
Multiple versions of EDT, 1-6
N
NOCOMMAND qualifier, 1-6, 5- 14
Nokeypad editing, 4-1. See also Command
deleting text, 4-26
description of, 4-1
ending a session, 4-12, 4-24, 4-31
entering commands, 4-2
recovering from system failure, 4-29
restoring lines, 4-28
starting a session, 4-2
undeleting text, 4-27
using counts, 4-4
using text entities, 4-4
Null command, to display next line, 3-6
Number sign (#) in range specifications, 3-7
Numbers
in line editing, 3-3
in range specifications, 3-6

o
OPEN LINE function, 2- 17

Index-3

PASTE buffer
in keypad editing, 2-17
in nokeypad editing, 4-19
Paste command, 4-19
PASTE function, 2-20
Plus/minus signs, directing cursor with, 4-11
Q

Qualifier
NOCOMMAND, 1-6, 5-14
RECOVER, 2-36, 3-18, 4-29
SEQUENCE, 3-12
QUIT command
to end keypad editing, 2-38
to end line editing, 3-19
to end nokeypad editing, 4-31
with unedited file, 5-11
QUIT/SAVE
in keypad editing, 2-36
in line editing, 3-18
in nokeypad editing, 4-29

R
Range specifications in line editing, 3-6
RECOVER qualifier, 2-36, 3-18, 4-29
Redefining keys, 5-14 to 5-16
REF (Refresh) command, 4-14, 4-30
Refreshing the screen
in keypad editing, 2-15
in line editing, 3-8
in nokeypad editing, 4-14
REPLACE command, 3-17
RESEQUENCE command, 3-11
RESET function, 2-18
RETURN key, 2-4
Reverse video, description of, 2-18, 4-17

s
Saving a file
in keypad editing, 2-13, 2-27
in line editing, 3-8, 3-15
in nokeypad editing, 4-12, 4-24
by writing text to new file, 5-9
Screen
displaying characteristics of, 5-11
refreshing the, 2-15, 3-8, 4-14
setting lines displayed on, 5-10
Search
in keypad editing, 2-20
in line editing, 3-13
in nokeypad editing, 4-20
reversing direction of, 2-22, 4-20

Index-4

SECTION function, 2-12
SEL (Select) command, 4-16
SELECT function, 2-18
Select range
in keypad editing, 2-18
in nokeypad editing, 4-17
SEQUENCE qualifier, 3-12
SET commands, 5-10
SET LINES command, 5-10 to 5-13
SET MODE CHANGE command, 5-12
SET NO KEYPAD command, 4-2
SET TERM command, 2-4
SHOW commands, 5-10
SHOW SCREEN command, 5-11
Slashes as delimiters, 3-14, 4-22
Startup command file, 1-4, 5-12
String, definition of, 2-22, 4-20
SUBS function, 2-23
SUBSTITUTE command
in line editing, 3-14
in nokeypad editing, 4-22
SUBSTITUTE NEXT command
in line editing, 3-14
in nokeypad editing, 4-22
SUBSTITUTE WHOLE command, 3-15
Substitution of text
in keypad editing, 2-23 to 2-26
in line editing, 3-3, 3-14
in nokeypad editing, 4-22
System failure, file recovery procedure,
2-36,3-18,4-29
System prompt, 1-5
T

Text
deleting in keypad editing, 2-28 to 2-35
deleting in line editing, 3-16
deleting in nokeypad editing, 4-26
displaying ranges of, 3-7
inserting in keypad editing, 2-4
inserting in line editing, 3-2
inserting in main buffer, 5-4
inserting in nokeypad editing, 4-3
keypad editing help display, 2-5
line editing help display, 3-5f
locating in keypad editing, 2-20
locating in line editing, 3-13
locating in nokeypad editing, 4-20
moving in keypad editing, 2-17
moving in line editing, 3-11
moving in nokeypad editing, 4-16
moving into buffers, 5-5 to 5-8
reinserting with PASTE, 2-20, 4-19
saving in keypad editing, 2-13, 2-27

Text (Cont.)
saving in line editing, 3-8, 3-15
saving in nokeypad editing, 4-12, 4-24
storing in PASTE buffer, 2-19
substituting in keypad editing, 2-23 to 2-26
substituting in line editing, 3-14
substituting in nokeypad editing, 4-22
undeleting in nokeypad editing, 4-27
writing to a file, 5-9
Text entity
description of, 1-2
used in nokeypad editing, 4-4
TOP function, 2-7
TYPE ALL command, 3-13
TYPE command, 3-6
TYPE WHOLE command, 3-6

UND (Undelete) command, 4-27
UND C function, 2-29
UND L function, 2-33
UND W function, 2-31
Uppercase text, resetting default, 3-1
V
VT100 help diagram, 2-6f
VT100 keyboard, 2-1£
VT52 help diagram, 2-5f
VT52 keyboard, 2-1£
W

WORD function, 2-11
WRITE command, 5-9
Writing text to a file, 5-9

Index-5

HOW TO ORDER ADDITIONAL DOCUMENTATION
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In Continental USA and Puerto Rico
call 800-258-1710

DIRECT MAIL ORDERS (U.S. and Puerto Rico)
Purchase orders should be mailed directly to:
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DIRECT MAIL ORDERS (Canada)
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INTERNATIONAL
When placing orders outside the U.S.A., please send orders to:
DIGITAL EQUIPMENT CORPORATION
A&SG Business Manager
c/o Digital's Local Subsidiary

or Approved Distributor

Internal orders should be placed through the Software Distribution Center (SOC), Digital Equipment Corporation,
Northboro, Massachusetts 01532

Introduction to the EDT Editor
AA-K443A-TC

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Printed in U.S.A.

PF1

PF2

GOLD

HELP

PF3
FNDNXT

PF4
DEL L

FIND

UND L

PAGE

SECT

9
APPEND

COMMAND

FILL

REPLACE

4
ADVANCE

DELW
UNDW

BACKUP

CUT

, DELC

TOP

PASTE

UNDC

BOTTOM
1

ENTER

WORD

EOL

CHAR

CHNGCASE

DEL EOL

SPECINS

0
LINE
OPEN LINE

ENTER

•

SELECT
RESET

SUBS

VT100 TERMINAL

HELP

GOLD

DEL L

UNO L

REPLACE

8
PAGE

FNDNXT

DELW

COMMAND

FIND

UNDW

4
ADVANCE

DOWN
SECT

BACKUP

DELC

RIGHT

TOP

UNDC

SPECINS

BOTTOM

WORD

EOL

CUT

LEFT

CHNGCASE

DEL EOL

PASTE

APPEND

SELECT

ENTER

RESET

SUBS

0
LINE
OPEN LINE

•

VT52 TERMINAL