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November 1983
EDT EDITOR MANUAL
Order No. AA-M????-TK
DIGITAL EQUIPMENT CORPORATION
CONFIDENTIAL AND PROPRIETARY
This is an unpublished work protected by Federal
Copyright Law. Any unauthorized reproduction is
strictly prohibited.
Software Version: EDT-20 V1.00
Digital Equipment Corporation, Maynard, Massachusetts
i
Field Test Draft
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 appear in this document.
The software described in this document is furnished under a license
and may be used or copied only 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.
Copyright c 1983 by Digital Equipment Corporation
The following are tradmarks of Digital Equipment Corporation:
DEC VT IAS
DECUS DECsystem-10 MASSBUS
DECnet DECsystem-20 PDT
PDP DECwriter RSTS
UNIBUS DIBOL RSX
VAX EduSystem VMS
ii
CHAPTER 1 INTRODUCTION TO EDT
1.1 OVERVIEW . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 AN OVERVIEW OF THE EDT EDITING SESSION . . . . . . 1-2
1.3 TYPES OF EDT COMMANDS . . . . . . . . . . . . . . 1-2
1.3.1 Keypad Editing Functions . . . . . . . . . . . . 1-3
1.3.2 Line Editing Commands . . . . . . . . . . . . . 1-3
1.3.3 Nokeypad Editing Commands . . . . . . . . . . . 1-3
1.3.4 The SET And SHOW Commands . . . . . . . . . . . 1-3
1.4 SPECIAL FEATURES . . . . . . . . . . . . . . . . . 1-4
1.4.1 The HELP Facility . . . . . . . . . . . . . . . 1-4
1.4.2 The Journal Facility . . . . . . . . . . . . . . 1-4
1.4.3 Startup Command Files . . . . . . . . . . . . . 1-4
1.4.4 Key Definitions For Keypad Function Keys . . . . 1-5
1.4.5 Macros . . . . . . . . . . . . . . . . . . . . . 1-5
1.4.6 Tabbing . . . . . . . . . . . . . . . . . . . . 1-5
CHAPTER 2 EDT BASICS
2.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 2-1
2.2 BASIC TERMINOLOGY AND CONCEPTS . . . . . . . . . . 2-1
2.2.1 EDT Terminology . . . . . . . . . . . . . . . . 2-2
2.2.2 Editing Modes . . . . . . . . . . . . . . . . . 2-5
2.2.3 Editing Session . . . . . . . . . . . . . . . . 2-5
2.2.4 Prompts . . . . . . . . . . . . . . . . . . . . 2-6
2.2.5 Files . . . . . . . . . . . . . . . . . . . . . 2-7
2.2.6 Input And Output Files . . . . . . . . . . . . . 2-8
2.2.7 File Specification . . . . . . . . . . . . . . . 2-8
2.2.8 Buffers . . . . . . . . . . . . . . . . . . . . 2-9
2.2.9 Text Entities . . . . . . . . . . . . . . . . 2-10
2.2.10 Control Characters . . . . . . . . . . . . . . 2-12
2.2.11 EDT's Position And Direction . . . . . . . . . 2-12
2.2.12 Strings . . . . . . . . . . . . . . . . . . . 2-13
2.2.13 Select Ranges . . . . . . . . . . . . . . . . 2-15
2.2.14 Line Numbers . . . . . . . . . . . . . . . . . 2-15
2.2.15 Line Ranges . . . . . . . . . . . . . . . . . 2-16
2.3 SPECIAL KEYS ON YOUR TERMINAL . . . . . . . . . 2-16
2.4 STARTING AND ENDING YOUR EDT SESSION . . . . . . 2-17
2.4.1 How To Begin . . . . . . . . . . . . . . . . . 2-18
2.4.2 Ending Your EDT Session . . . . . . . . . . . 2-19
2.5 RECOVERING YOUR EDT SESSION -- THE JOURNAL
FACILITY . . . . . . . . . . . . . . . . . . . . 2-20
CHAPTER 3 KEYPAD EDITING
3.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 3-1
3.2 DEFINITIONS OF TERMS USED IN CHAPTER 3 . . . . . . 3-2
3.3 THE KEYBOARD AND KEYPAD . . . . . . . . . . . . . 3-3
3.4 STARTING YOUR EDT SESSION . . . . . . . . . . . . 3-6
3.5 ENDING YOUR EDT SESSION . . . . . . . . . . . . . 3-8
3.6 THE HELP FACILITY . . . . . . . . . . . . . . . 3-10
3.7 REFRESHING THE SCREEN -- CTRL/W . . . . . . . . 3-12
3.8 ENTERING TEXT IN AN EMPTY FILE . . . . . . . . . 3-12
iii
3.9 MOVING THE CURSOR . . . . . . . . . . . . . . . 3-14
3.10 DELETING TEXT . . . . . . . . . . . . . . . . . 3-18
3.10.1 Deleting And Undeleting Characters -- DEL C,
DELETE, UND C . . . . . . . . . . . . . . . . 3-19
3.10.2 Deleting And Undeleting Words -- DEL W,
LINEFEED, UND W . . . . . . . . . . . . . . . 3-21
3.10.3 Deleting And Undeleting Lines -- DEL L, DEL
EOL, CTRL/U, UND L . . . . . . . . . . . . . . 3-24
3.10.4 Other Uses For The Delete Functions . . . . . 3-30
3.11 ADDING LINES TO YOUR BUFFER -- RETURN AND OPEN
LINE . . . . . . . . . . . . . . . . . . . . . . 3-30
3.12 LOCATING STRINGS IN YOUR BUFFER -- FIND AND
FNDNXT . . . . . . . . . . . . . . . . . . . . . 3-32
3.12.1 FIND . . . . . . . . . . . . . . . . . . . . . 3-33
3.12.2 Editing The Search String Or Cancelling The
Search . . . . . . . . . . . . . . . . . . . . 3-35
3.12.3 FNDNXT (Find Next) . . . . . . . . . . . . . . 3-35
3.12.4 Examples Using FIND And FNDNXT . . . . . . . . 3-36
3.13 FUNCTIONS THAT MANIPULATE BLOCKS OF TEXT -- . . 3-37
3.13.1 SELECT . . . . . . . . . . . . . . . . . . . . 3-37
3.13.2 Using RESET To Cancel A Select Range . . . . . 3-38
3.13.3 CUT . . . . . . . . . . . . . . . . . . . . . 3-38
3.13.4 PASTE . . . . . . . . . . . . . . . . . . . . 3-39
3.13.5 APPEND . . . . . . . . . . . . . . . . . . . . 3-43
3.13.6 REPLACE . . . . . . . . . . . . . . . . . . . 3-45
3.14 OTHER FUNCTIONS THAT USE THE SELECT RANGE -- . . 3-47
3.14.1 CHNGCASE . . . . . . . . . . . . . . . . . . . 3-47
3.14.2 FILL . . . . . . . . . . . . . . . . . . . . . 3-49
3.15 SUBSTITUTING IN KEYPAD MODE -- SUBS . . . . . . 3-50
3.16 USING EDT'S PRESET TAB STOPS -- TAB . . . . . . 3-53
3.17 INSERTING SPECIAL CHARACTERS IN YOUR TEXT --
SPECINS . . . . . . . . . . . . . . . . . . . . 3-54
3.18 KEYPAD'S REPEAT FUNCTION -- GOLD + [-][N] . . . 3-56
3.19 USING COMMANDS FROM OTHER EDT MODES -- COMMAND,
CTRL/Z . . . . . . . . . . . . . . . . . . . . . 3-58
3.19.1 Using Line Mode Commands From Keypad Mode . . 3-59
3.19.2 Shifting To Line Mode For A Series Of Commands 3-60
CHAPTER 4 LINE EDITING
4.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 4-1
4.2 DEFINITIONS OF TERMS USED IN CHAPTER 4 . . . . . . 4-3
4.3 USING COMMANDS IN LINE EDITING . . . . . . . . . . 4-3
4.3.1 Specifiers . . . . . . . . . . . . . . . . . . . 4-4
4.3.2 Qualifiers . . . . . . . . . . . . . . . . . . . 4-4
4.3.3 Correcting Errors On The Command Line . . . . . 4-5
4.3.4 Command Recognition . . . . . . . . . . . . . . 4-6
4.4 BUFFER AND RANGE SPECIFIERS . . . . . . . . . . . 4-8
4.4.1 The Buffer Specifier . . . . . . . . . . . . . . 4-8
4.4.2 The Range Specifier . . . . . . . . . . . . . . 4-9
4.4.2.1 Period . . . . . . . . . . . . . . . . . . . 4-11
4.4.2.2 Number . . . . . . . . . . . . . . . . . . . 4-12
4.4.2.3 Strings . . . . . . . . . . . . . . . . . . 4-12
4.4.2.4 BEGIN . . . . . . . . . . . . . . . . . . . 4-13
iv
4.4.2.5 END . . . . . . . . . . . . . . . . . . . . 4-13
4.4.2.6 LAST . . . . . . . . . . . . . . . . . . . . 4-14
4.4.2.7 WHOLE . . . . . . . . . . . . . . . . . . . 4-14
4.4.2.8 BEFORE . . . . . . . . . . . . . . . . . . . 4-14
4.4.2.9 REST . . . . . . . . . . . . . . . . . . . . 4-15
4.4.2.10 SELECT . . . . . . . . . . . . . . . . . . . 4-15
4.4.2.11 Specifying Line Numbers That Do Not Exist . 4-15
4.4.2.12 Using Range Specifiers With The _NULL>
Command . . . . . . . . . . . . . . . . . . 4-16
4.4.2.13 Error Messages With Line Ranges . . . . . . 4-16
4.5 EDITING A FILE WITH LINE MODE . . . . . . . . . 4-16
4.6 THE COMMANDS THAT END YOUR EDT SESSION -- EXIT,
QUIT . . . . . . . . . . . . . . . . . . . . . . 4-17
4.7 THE HELP FACILITY -- HELP . . . . . . . . . . . 4-18
4.8 INSERTING AND DELETING LINES -- INSERT, DELETE . 4-19
4.9 MOVING FROM PLACE TO PLACE -- FIND, _NULL>, TYPE 4-23
4.10 PERFORMING SUBSTITUTIONS -- SUBSTITUTE,
SUBSTITUTE NEXT . . . . . . . . . . . . . . . . 4-26
4.10.1 SUBSTITUTE . . . . . . . . . . . . . . . . . . 4-26
4.10.2 SUBSTITUTE NEXT . . . . . . . . . . . . . . . 4-29
4.10.3 Comparing SUBSTITUTE And SUBSTITUTE NEXT . . . 4-30
4.11 LINE EDITING IN ACTION -- SAMPLE SESSION . . . . 4-31
4.12 USING DIFFERENT BUFFERS IN LINE MODE . . . . . . 4-37
4.12.1 SHOW BUFFER . . . . . . . . . . . . . . . . . 4-38
4.12.2 FIND, _NULL>, And TYPE With A Buffer Specifier 4-39
4.12.3 Deleting A Buffer With CLEAR . . . . . . . . . 4-41
4.13 MOVING BLOCKS OF TEXT -- COPY, MOVE, AND REPLACE 4-41
4.13.1 MOVE . . . . . . . . . . . . . . . . . . . . . 4-42
4.13.2 COPY . . . . . . . . . . . . . . . . . . . . . 4-44
4.13.3 REPLACE . . . . . . . . . . . . . . . . . . . 4-47
4.14 ADDITIONAL INFORMATION ABOUT DELETE, INSERT, AND
REPLACE . . . . . . . . . . . . . . . . . . . . 4-47
4.14.1 DELETE . . . . . . . . . . . . . . . . . . . . 4-48
4.14.2 INSERT . . . . . . . . . . . . . . . . . . . . 4-48
4.14.3 REPLACE . . . . . . . . . . . . . . . . . . . 4-49
4.15 COMMANDS THAT USE EXTERNAL FILES -- INCLUDE,
PRINT, WRITE . . . . . . . . . . . . . . . . . . 4-50
4.15.1 INCLUDE . . . . . . . . . . . . . . . . . . . 4-51
4.15.2 WRITE . . . . . . . . . . . . . . . . . . . . 4-52
4.15.3 PRINT . . . . . . . . . . . . . . . . . . . . 4-53
4.16 LINE NUMBERING YOUR TEXT -- RESEQUENCE . . . . . 4-54
4.17 FORMATTING TEXT -- FILL . . . . . . . . . . . . 4-56
4.18 TAB . . . . . . . . . . . . . . . . . . . . . . 4-57
4.19 USING SEVERAL LINE MODE COMMANDS ON A SINGLE LINE 4-58
4.20 QUALIFIERS IN LINE MODE . . . . . . . . . . . . 4-59
4.20.1 /BRIEF . . . . . . . . . . . . . . . . . . . . 4-60
4.20.2 /NOTYPE . . . . . . . . . . . . . . . . . . . 4-60
4.20.3 /QUERY . . . . . . . . . . . . . . . . . . . . 4-61
4.20.4 /STAY . . . . . . . . . . . . . . . . . . . . 4-62
CHAPTER 5 NOKEYPAD EDITING
5.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 5-1
5.2 DEFINITIONS OF TERMS USED IN CHAPTER 5 . . . . . . 5-3
v
5.3 BASICS OF NOKEYPAD COMMANDS . . . . . . . . . . . 5-3
5.4 NOKEYPAD SPECIFIERS . . . . . . . . . . . . . . . 5-4
5.4.1 The Buffer Specifier . . . . . . . . . . . . . . 5-4
5.4.2 The Count Specifier . . . . . . . . . . . . . . 5-4
5.4.3 The Sign (+|-) Specifier . . . . . . . . . . . . 5-5
5.4.4 The String Specifier . . . . . . . . . . . . . . 5-5
5.4.5 The Entity Specifier . . . . . . . . . . . . . . 5-6
5.4.5.1 The "string" Entity . . . . . . . . . . . . 5-12
5.4.5.2 The V Entity . . . . . . . . . . . . . . . . 5-12
5.5 USING NOKEYPAD EDITING . . . . . . . . . . . . . 5-14
5.5.1 Starting To Edit In Nokeypad Mode . . . . . . 5-15
5.5.1.1 Line Mode's CHANGE Command . . . . . . . . . 5-16
5.5.2 Ending Your Nokeypad Editing Session . . . . . 5-17
5.5.3 Using Line Mode Commands In Nokeypad Mode . . 5-18
5.5.4 Using The EDT HELP File For Nokeypad
Information . . . . . . . . . . . . . . . . . 5-20
5.6 EDITING TEXT IN NOKEYPAD MODE . . . . . . . . . 5-21
5.6.1 Inserting Text -- I . . . . . . . . . . . . . 5-21
5.6.2 Moving The Cursor -- "move" . . . . . . . . . 5-23
5.6.3 Deleting Text -- D . . . . . . . . . . . . . . 5-24
5.6.4 The Undelete Commands -- UNDC, UNDW, UNDL . . 5-27
5.6.5 Combining The Delete And Insert Functions -- R 5-28
5.6.6 Performing Substitutions -- S, SN . . . . . . 5-29
5.6.7 Commands That Change Case -- CHGC, CHGL, CHGU,
DLWC, DMOV, DUPC . . . . . . . . . . . . . . . 5-32
5.6.8 Using The Select Range -- SEL, DESEL, TGSEL,
SSEL . . . . . . . . . . . . . . . . . . . . . 5-34
5.6.8.1 SEL . . . . . . . . . . . . . . . . . . . . 5-34
5.6.8.2 DESEL . . . . . . . . . . . . . . . . . . . 5-35
5.6.8.3 TGSEL . . . . . . . . . . . . . . . . . . . 5-36
5.6.8.4 SSEL . . . . . . . . . . . . . . . . . . . . 5-36
5.6.9 Moving And Copying Text -- CUT, PASTE, APPEND,
KS . . . . . . . . . . . . . . . . . . . . . . 5-36
5.6.9.1 CUT . . . . . . . . . . . . . . . . . . . . 5-37
5.6.9.2 PASTE . . . . . . . . . . . . . . . . . . . 5-38
5.6.9.3 APPEND . . . . . . . . . . . . . . . . . . . 5-41
5.6.9.4 KS . . . . . . . . . . . . . . . . . . . . . 5-43
5.7 COMMANDS THAT AFFECT YOUR EDITING SESSION . . . 5-44
5.7.1 Commands That Change EDT's Direction -- ADV,
BACK . . . . . . . . . . . . . . . . . . . . . 5-44
5.7.2 Nokeypad Commands Affecting The Display -- REF,
SHL, SHR, TOP . . . . . . . . . . . . . . . . 5-45
5.7.2.1 REF . . . . . . . . . . . . . . . . . . . . 5-45
5.7.2.2 TOP . . . . . . . . . . . . . . . . . . . . 5-46
5.7.2.3 SHL And SHR . . . . . . . . . . . . . . . . 5-46
5.7.3 Clearing The Search String -- CLSS . . . . . . 5-47
5.7.4 Sounding The Terminal Bell -- BELL . . . . . . 5-47
5.8 FORMATTING TEXT WITH THE FILL COMMAND . . . . . 5-48
5.9 SPECIAL NOKEYPAD COMMANDS -- ASC, ^, DATE . . . 5-49
5.9.1 ASC . . . . . . . . . . . . . . . . . . . . . 5-49
5.9.2 The Circumflex (^) . . . . . . . . . . . . . . 5-50
5.9.3 DATE . . . . . . . . . . . . . . . . . . . . . 5-51
5.10 JOINING NOKEYPAD COMMANDS ON A SINGLE COMMAND
LINE . . . . . . . . . . . . . . . . . . . . . . 5-51
vi
CHAPTER 6 THE SET AND SHOW COMMANDS
6.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 6-1
6.2 SUMMARY OF SET AND SHOW COMMANDS . . . . . . . . . 6-1
6.3 SET/SHOW ENTITY . . . . . . . . . . . . . . . . . 6-6
6.3.1 SET ENTITY WORD . . . . . . . . . . . . . . . . 6-7
6.3.2 SET ENTITY SENTENCE . . . . . . . . . . . . . . 6-8
6.3.3 SET ENTITY PARAGRAPH . . . . . . . . . . . . . . 6-8
6.3.4 SET ENTITY PAGE . . . . . . . . . . . . . . . . 6-9
6.4 SET/SHOW SEARCH . . . . . . . . . . . . . . . . 6-10
6.4.1 Parameters That Match Case . . . . . . . . . . 6-10
6.4.2 Cursor Location . . . . . . . . . . . . . . . 6-11
6.4.3 Search Limits . . . . . . . . . . . . . . . . 6-12
6.5 SHOW BUFFER . . . . . . . . . . . . . . . . . . 6-12
6.6 SHOW KEY . . . . . . . . . . . . . . . . . . . . 6-14
CHAPTER 7 ADVANCED EDT FACILITIES
7.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 7-1
7.2 COMMAND FILES . . . . . . . . . . . . . . . . . . 7-1
7.2.1 Creating A Startup Command File . . . . . . . . 7-2
7.2.2 Sample Startup Command Files . . . . . . . . . . 7-3
7.2.3 Using SET COMMAND And SHOW COMMAND In A Startup
Command File . . . . . . . . . . . . . . . . . 7-11
7.2.4 Indirect Command Files . . . . . . . . . . . . 7-13
7.3 DEFINING AND REDEFINING KEYS . . . . . . . . . . 7-13
7.3.1 Basics . . . . . . . . . . . . . . . . . . . . 7-14
7.3.2 What Keys Can Be Defined . . . . . . . . . . . 7-15
7.3.2.1 Keypad Keys . . . . . . . . . . . . . . . . 7-16
7.3.2.2 Control Keys . . . . . . . . . . . . . . . . 7-16
7.3.2.3 GOLD Control Keys . . . . . . . . . . . . . 7-16
7.3.2.4 GOLD Keyboard Keys . . . . . . . . . . . . . 7-17
7.3.2.5 Special Keyboard Keys . . . . . . . . . . . 7-17
7.3.3 Nokeypad Definitions For Keypad Keys . . . . . 7-18
7.3.4 Using Prompts In Key Definitions . . . . . . . 7-19
7.3.5 The Key Definition Process . . . . . . . . . . 7-21
7.3.5.1 Keypad Mode: CTRL/K . . . . . . . . . . . . 7-22
7.3.5.2 Editing And Testing Your CTRL/K Definitions 7-27
7.3.5.3 Line Mode: DEFINE KEY . . . . . . . . . . . 7-28
7.3.6 Key Definitions At Work . . . . . . . . . . . 7-32
7.3.7 Creating A Table With User Defined Keys . . . 7-36
7.4 DEFINING EDT MACROS . . . . . . . . . . . . . . 7-41
7.5 SHIFTING EDITING MODES . . . . . . . . . . . . . 7-47
7.5.1 Moving From Line Mode To The Change Modes . . 7-47
7.5.2 Shifting From Keypad Mode To Line Or Nokeypad
Mode . . . . . . . . . . . . . . . . . . . . . 7-48
7.5.2.1 Keypad To Line Mode . . . . . . . . . . . . 7-48
7.5.2.2 Keypad To Nokeypad . . . . . . . . . . . . . 7-50
7.5.3 Shifting From Nokeypad Mode To Keypad Mode Or
Line Mode . . . . . . . . . . . . . . . . . . 7-52
7.5.3.1 Nokeypad To Line Mode . . . . . . . . . . . 7-52
7.5.3.2 Nokeypad To Keypad . . . . . . . . . . . . . 7-52
7.6 THE EDT JOURNAL FILE . . . . . . . . . . . . . . 7-53
7.6.1 Looking At The Journal File . . . . . . . . . 7-53
vii
7.6.2 Editing The Journal File . . . . . . . . . . . 7-57
7.7 EDT'S TABBING FACILITY . . . . . . . . . . . . . 7-60
7.7.1 Tabbing Operations In The Screen Modes . . . . 7-60
7.7.2 Tabbing With EDT . . . . . . . . . . . . . . . 7-61
7.7.2.1 Using The TAB Function To Arrange Text In
Columns . . . . . . . . . . . . . . . . . . 7-62
7.7.2.2 Creating Layered Text Using SET TAB And Other
Tab Functions . . . . . . . . . . . . . . . 7-65
7.7.2.3 CTRL/E -- The Tab Increment Function . . . . 7-66
7.7.2.4 CTRL/D -- The Tab Decrement Function . . . . 7-66
7.7.2.5 CTRL/A -- The Tab Compute Function . . . . . 7-66
7.7.3 CTRL/T -- The Tab Adjust Function . . . . . . 7-67
7.7.4 Example . . . . . . . . . . . . . . . . . . . 7-68
7.7.5 Tabbing In Line Mode . . . . . . . . . . . . . 7-72
7.8 USING HARDCOPY CHANGE MODE . . . . . . . . . . . 7-74
7.8.1 Editing In Hardcopy Change Mode . . . . . . . 7-75
7.9 USING EDT LINE NUMBERS . . . . . . . . . . . . . 7-79
7.9.1 Properties Of Line Numbers . . . . . . . . . . 7-80
7.9.2 Using Line Numbered Files In Your EDT Session 7-80
7.9.3 Line Numbers With The PRINT Command . . . . . 7-81
7.10 CREATING OR MODIFYING THE HELP FILE . . . . . . 7-82
7.10.1 HELP File Structure . . . . . . . . . . . . . 7-83
7.10.2 HELP File Format . . . . . . . . . . . . . . . 7-85
7.10.3 Formatting The KEYPAD HELP Text . . . . . . . 7-85
7.10.4 Using Different HELP Files In Your EDT Session 7-88
CHAPTER 8 EDT COMMAND REFERENCE
8.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 8-1
APPENDIX A EDT MESSAGES
APPENDIX B EDT COMMAND SUMMARY
B.1 KEYPAD COMMANDS . . . . . . . . . . . . . . . . . B-1
B.2 LINE COMMANDS . . . . . . . . . . . . . . . . . . B-4
B.3 NOKEYPAD COMMANDS . . . . . . . . . . . . . . . . B-8
APPENDIX C TERMINAL SUPPORT AND INTERFACE FOR EDT
C.1 TERMINALS THAT EDT SUPPORTS . . . . . . . . . . . C-1
C.2 TERMINAL INTERFACE . . . . . . . . . . . . . . . . C-2
C.3 TERMINALS OPERATING AT LOW DATA TRANSMISSION RATES C-2
APPENDIX D ASCII CHARACTER SET
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APPENDIX E USING EDT WITH THE TOPS-20 OPERATING SYSTEM
E.1 CALLING UP EDT . . . . . . . . . . . . . . . . . . E-1
E.2 INFORMATION ON USING FILES WITH EDT . . . . . . . E-3
E.3 EDIT COMMAND QUALIFIERS . . . . . . . . . . . . . E-4
E.4 CONTROL CHARACTERS THAT CANNOT BE DEFINED . . . . E-7
E.5 TERMINAL INFORMATION AND SETTINGS UNDER TOPS-20 . E-7
E.6 INFORMATION ON HELP FILE FORMATS . . . . . . . . . E-9
E.7 RUNNING EDT FROM A PROGRAM . . . . . . . . . . . . E-9
ix
PREFACE
AUDIENCE
EDT, DIGITAL's standard text editor, is designed for use on these
operating systems: VAX/VMS, RSTS/E, RSX-11M, RSX-11M-PLUS and
TOPS-20. This EDT Editor Manual describes how to use EDT to create
and edit text files interactively on the TOPS-20 operating system.
This manual consists of explanations and examples of EDT editing
operations and tasks, as well as a reference section which discusses
each EDT editing command and function.
The manual is intended for all levels of users -- beginners through
experienced. You must have:
1. Access to an operating system that has the EDT editor.
2. Knowledge of the basic system commands for that operating
system, such as logging on and off, listing a file directory,
and deleting files.
3. Familiarity with the terminal you will be using with EDT.
New users with no previous computer editing experience will find the
following manual helpful in learning how to use EDT:
Introduction to the EDT Editor
Teaches users with little or no computer experience how to edit
text with the EDT editor.
These manuals give information on the operating systems that support
the EDT Editor:
VAX/VMS:
VAX/VMS Primer
Introduces a new VAX/VMS user to the DIGITAL Command Language
(DCL), file manipulation, program development, and elementary
operating system concepts.
VAX/VMS Command Language User's Guide
Gives detailed reference information on the VAX/VMS DIGITAL
Command Language (DCL).
RSTS/E:
RSTS/E Primer
Introduces the RSTS/E operating system to new users.
RSTS/E System User's Guide
Describes the RSTS/E V7.0 operating system: its programs,
features, and resources.
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PREFACE
RSX-11M/M-PLUS:
Introduction to RSX-11M and RSX-11M-PLUS
Teaches new users to use the RSX-11M/M-PLUS operating system.
RSX-11M/M-PLUS Command Language Manual
Describes the RSX DCL command language in detail.
TOPS-20:
Getting Started With TOPS-20
Introduces a new user to the TOPS-20 operating system.
TOPS-20 Commands Reference Manual
Gives detailed user information on the TOPS-20 command language.
USING THIS MANUAL
This manual assumes that you know how to use your terminal and that
you are familiar with some basic computer procedures such as logging
on and off, using a file directory, giving elementary system commands
to delete, copy, or rename files, and pressing the RETURN key to send
information to the computer.
The EDT Editor Manual covers all aspects of EDT. However, those who
have never used a computer editor before will find it useful to read
the Introduction to the EDT Editor volume, which describes
introductory concepts and commands in greater detail.
DOCUMENT STRUCTURE
Chapter 1: Provides a broad introduction to EDT on TOPS-20.
Chapter 2: Provides information on basic computer editing concepts
as they apply to EDT. These include information on how
EDT works, how to start and end your EDT session, files
and buffers, text entities, strings, ranges, and line
numbers. The last section describes EDT's journal
facility, which enables you to recover your work if a
system interruption occurs.
Chapter 3: Presents an in-depth description of the major keypad
editing functions and examples showing how to use them.
Chapter 4: Describes line editing commands and techniques. Some
line mode commands are useful even if you plan to use
keypad editing most of the time. This chapter includes
a full discussion of line ranges.
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PREFACE
Chapter 5: Describes nokeypad editing and includes a complete
table of nokeypad entity specifiers. Nokeypad mode is
used primarily to create key definitions for keypad
mode.
Chapter 6: Contains a reference table for all the SET and SHOW
commands as well as detailed descriptions of several of
the more complex and frequently used SET and SHOW
commands.
Chapter 7: Presents information on advanced features of EDT. The
topics covered include startup command files, key
definitions, macro definitions, tabbing, shifting
modes, EDT line numbers, and modification of the EDT
HELP file.
Chapter 8: Describes all EDT commands, qualifiers, and specifiers.
The items are arranged alphabetically, each starting at
the top of a page. Directly under the item name is its
editing mode: keypad, line, or nokeypad. Examples are
given for most items. A cross reference chart at the
beginning of the chapter groups commands in all three
editing modes by their type of function.
Appendix A: Contains all the EDT messages that can appear during an
editing session. There is a brief explanation for each
message.
Appendix B: Presents a command summary, arranged by editing mode.
Use this appendix to quickly refresh your memory about
a command's syntax, or to find out what commands are
available in a particular mode.
Appendix C: Gives details on terminal support for EDT. Check here
to find out if you can use the screen modes with your
terminal.
Appendix D: Lists the ASCII Character Set with decimal equivalents
for all characters in the set.
Appendix E: Includes information specific to using EDT on a TOPS-20
operating system. Qualifiers and specifiers for the
TOPS-20 EDIT and CREATE commands are described. This
appendix tells you how to call EDT from a running
program on a TOPS-20 system.
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CONVENTIONS
This manual uses the following conventions and symbols:
Symbol Description
EDT In this manual refers to EDT-20 V1.
Cursor || A shaded rectangle represents the cursor in
screen terminal examples.
Control |CTRL/x| The phrase CTRL/x (control x) indicates a
Character control key sequence. First press the key
Sequence labelled CTRL; then, while holding down that
key, press the keyboard character key.
Examples: CTRL/Z or CTRL/[.
GOLD |GOLD/x| The phrase GOLD/x indicates the GOLD key
Character sequence. Press the GOLD keypad key and then
Sequence a keyboard key. Examples: GOLD/T or GOLD/*.
The GOLD key is the upper left-most key on the
keypad. It is labelled PF1 on VT100 terminals
it is blue on VT52 terminals.
Delete |DELETE| The DELETE key (sometimes called RUBOUT)
Key removes the character to the left of the
cursor on screen terminals. On hardcopy
terminals it deletes the characters starting
with the one to the left of the print head.
Return |RETURN| The RETURN key sends an EDT command to the
Key computer in line and nokeypad editing. When
you insert text, RETURN moves the cursor or
print head to start a new line in all three
editing modes.
Spacebar |SP| This symbol indicates the spacebar or a space
Space in the text.
Keyboard | A | This is a keyboard character key.
Key
Keypad |DEL L| This is a keypad function key. When the key
Function |UND L| is not preceded by GOLD, the upper function is
Key the one performed, in this case DEL L.
|GOLD|+|DEL L| This is an alternative keypad function key.
|UND L| Pressing GOLD and then the function key causes
the lower function to be performed, in this
case UND L.
Command and COPY The underlined letters indicate the minimum
Qualifier abbreviation for the command, in this case CO
Abbreviations for COPY. EDT accepts any input from the
minimum abbreviation through the complete
command name. For clarity, all examples in
this manual show the complete command name.
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CONVENTIONS
Optional [ ] Brackets enclose optional material in command
Material statements. This material might be a file
specification, a line number, or a word. For
example, [range] shows that you can enter a
range of lines at that point in the command
statement. Never type brackets in the actual
command statement.
Alternative { } Braces enclose a list of alternatives within a
Command command. Unless the braces are contained
Words within brackets, you must specify one of the
alternatives in your command statement. The
alternatives are separated from each other by
vertical bars (|). Do not type braces or bars
in the actual command statement.
Alternative | The OR symbol (vertical bar) separates
Command Word specifiers for the same operation or
Separator alternatives contained within braces. For
example, 'string'|"string" indicates that you
you can use either single or double quotation
marks to surround a string.
System |hand| The hand symbol represents your operating
Prompt system's command level prompt. The actual
prompt symbol appears at the left of your
screen or paper. The system prompts include
$, >, and Ready.
User red Red and brown print in examples indicate what
Input brown you type or what keys you press. Most
examples use red. When keypad examples for
VT52 terminals differ from those for VT100
type terminals, the VT52 input appears in
brown. Your input for line and nokeypad
editing is always red.
Repetition ... The horizontal ellipsis shows indefinite
repetition in a command statement. For
example [subtopic ...] indicates that you can
specify more than one subtopic.
Omission . The vertical ellipsis indicates that some of
. the lines in the example or figure are not
. shown.
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CONVENTIONS
Summary of differences between EDT-20 V1 and EDT V3
This release of EDT is similar to EDT V3 which runs on the VAX/VMS,
RSX-11M, RSX-11M-PLUS, and RSTS/E operating systems, but is designed
to run on the TOPS-20 operating system. This means that there are
certain differences between EDT V3 and EDT-20 V1. The following notes
briefly describe these differences.
1. All line mode commands take advantage of the recognition
features of the TOPS-20 command interface (that is, the
ESCAPE and question mark keys). Because of this, any key
definitions involving the question mark key must contain the
question mark in double quotes. For example: DEFINE KEY
GOLD "?" AS .... Also, the SET PROMPT keyword INSERTN has
been changed to NINSERT to aid recognition.
2. Line mode commands require all quoted strings to be enclosed
in double quotes ("). If you wish to include a double quote
character in the string, simply precede it with a second
double quote. Also, multiple line mode commands are
separated by a backslash character (\).
3. In its handling of directories, EDT-20 takes the following
default action:
o Searches your connected directory then your log-in
directory for the startup command file.
o Assumes that help files are located in PS:HELP>.
4. EDT-20 provides the following new commands and qualifiers:
PUSH command
SET [NO]CONTROL-T command
SHOW CONTROL-T command
/GO qualifier for the EXIT command
5. TOPS-20 places no restriction on the use of CTRL/x or CTRL/Y
as keypad command keys.
6. EDT-20 does not provide an XLATE command -- Appendix E
describes how to call EDT-20 from a running program.
7. This release of EDT-20 does not support eightbit terminals,
that is, terminals which use the full DEC Multinational
Character Set. Only the ASCII character set as used on VT100
and VT52 style terminals is supported.
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