home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload
/
ShartewareOverload.cdr
/
windows
/
sedt_doc.zip
/
SEDTMAN.EDT
< prev
Wrap
Text File
|
1990-07-14
|
204KB
|
6,490 lines
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Sedt Reference Manual
Index
0 Introduction
0.0 Structure of This Manual
0.1 Terminology
1 Primer
1.0 Getting Started
1.1 Display
1.2 Moving the cursor
1.3 Inserting Text
1.4 Deleting Text
1.5 Saving your changes
1.6 Summary
1.7 Limitations
2 Advanced Guide
2.1 Introduction
2.2 Entering Sedt
2.2.1 -<Line Number>
2.2.2 -a
2.2.3 -at
2.2.4 -b
2.2.5 -co
2.2.6 -e
2.2.7 -edt
2.2.8 -ega
2.2.9 -f
2.2.10 -i<File Name>
2.2.11 -k
2.2.12 -l<Size>
2.2.13 -m<Hex number>
2.2.14 -mo
2.2.15 -p<PID>
2.2.16 -pc
2.2.17 -r
2.2.18 -rb
2.2.19 -ro
2.2.20 -s<Size>
2.2.21 -v
2.2.22 -wi
2.2.23 -wps
2.2.24 -xt
2.3 Sedt's Data Files
2.3.1 Configuration File
2.3.1.1 AUTOSAVE
2.3.1.2 BACKUPFILE
2.3.1.3 BUFFERING
2.3.1.4 COLUMN
2.3.1.5 CONTEXT
2.3.1.6 CONTROLZ
2.3.1.7 CURSOR
2.3.1.8 CURSORLINE
2.3.1.9 DIALOG
2.3.1.10 EGA43
2.3.1.11 FONTSIZE
2.3.1.12 GOLD
2.3.1.13 JOURNALING
2.3.1.14 KEYBOARD
2.3.1.15 KEYPROG
2.3.1.16 MAPPING
2.3.1.17 MAXSCROLL
2.3.1.18 MODE
2.3.1.19 MOUSE
2.3.1.20 NUMLOCK
2.3.1.21 PALETTE
2.3.1.22 REMEMBER
2.3.1.23 RETURN
2.3.1.24 RULER
2.3.1.25 SCREEN
2.3.1.26 SCREENSHIFT
2.3.1.27 SHAREMESSAGE
2.3.1.28 SYSTEM
2.3.1.29 TAB
2.3.1.30 VIDEO
2.4 Initialization
2.5 Setting up the ruler
2.6 Options/Modes
2.7 Responding to Prompts
2.8 Repeating Commands
2.9 Cursor Movement
2.10 Text Insertion
2.11 Selecting Text Ranges
2.12 Deleting Text
2.13 Substitution
2.14 Windows and Buffers
2.15 Text Formatting
2.16 Programming Keys
2.17 Changing Options
2.18 Miscellaneous Commands
3 Using the MS-DOS version of Sedt
3.1 Support of the Microsoft mouse driver
4 Using the Microsoft Windows version of Sedt
4.1 Window Control
4.2 Mouse Control
4.3 Menu Control
4.3.1 File
4.3.1.1 New
4.3.1.2 Open..
4.3.1.2 Save
4.3.1.3 Save as..
4.3.1.4 Insert..
4.3.1.5 Quit
4.3.2 Window
4.3.2.1 Untitled
Unused
<File name>
4.3.2.2 Switch
4.3.3 Edit
4.3.3.1 Clear
4.3.3.2 Cut
4.3.3.3 Paste
4.3.4 Ruler
4.3.4.1 Load <X>
4.3.5 Help
5 Using the ATARI GEM version of Sedt
5.1 Window Control
5.2 Mouse Control
5.3 Menu Control
5.3.1 Desk
5.3.1.1 About Sedt
5.3.2 File
5.3.2.1 Load..
5.3.2.2 Save
5.3.2.3 Save as..
5.3.2.4 Insert..
5.3.2.5 Quit
5.3.3 Window
5.3.3.1 Open 0
5.3.3.2 Switch
5.3.3.3 Clear
5.3.4 Select
5.3.4.1 Clear
5.3.4.2 Cut
5.3.4.3 Paste
5.3.5 Ruler
5.3.5.1 Load <X>
5.3.6 Help
5.3.6.1 Show
6 Sedt hints and tricks
6.1 Using Sedt for programming
6.2 Using Sedt for text and documents
6.3 Repetitive tasks
6.4 Creating menus
6.5 Using different initialization files for
different file types
6.6 Using linked files under UNIX
7 Customizing keyboards
7.1 Function definition file
7.2 Key map file
7.3 MAPKEY program
8 Help file
9 Reference
9.1 Interpreting Keyboard Input
9.2 Translating Keystrokes
9.3 Command Syntax
9.4 Commands
9.4.1 Movement Commands
9.4.1.1 @AC Absolute Character
9.4.1.2 @AL Absolute Line
9.4.1.3 @BB Beginning of Buffer
9.4.1.4 @BM Match bracketing character
9.4.1.5 @EB End of Buffer
9.4.1.6 @EL End of Line
9.4.1.7 @C Character
9.4.1.8 @F Find
9.4.1.9 @L Line
9.4.1.10 @M Mark
9.4.1.11 @N Next
9.4.1.12 @PAG Page
9.4.1.13 @PAR Paragraph
9.4.1.14 @SCR Screen
9.4.1.15 @SEN Sentence
9.4.1.16 @SR Select Range
9.4.1.17 @V Vertical
9.4.1.18 @W Word
9.4.1.19 @XNM Next Mark
9.4.1.20 @XSR Select Region with no clear
9.4.2 Action Commands
9.4.2.1 :A Advance
9.4.2.2 :B Backward
9.4.2.3 :CB Cursor at Bottom
9.4.2.4 :CC Change Case
9.4.2.5 :CD Change to Lower case
9.4.2.6 :CE Change Case Edt Style
9.4.2.7 :CH Insert ASCII Character
9.4.2.8 :CK Checkpoint buffer
9.4.2.9 :CL Center Line
9.4.2.10 :CM Cursor at Middle
9.4.2.11 :CNA Add number to counter
9.4.2.12 :CNG Get counter from buffer
9.4.2.13 :CNI Increment or decrement counter
9.4.2.14 :CNP Insert value of counter in buffer
9.4.2.15 :CNS Set counter value
9.4.2.16 :CS Save buffer context
9.4.2.17 :CT Cursor at Top
9.4.2.18 :CU Change to Upper Case
9.4.2.19 :CW Change to other window on screen
9.4.2.20 :D Delete
9.4.2.21 :EAP Delete and Append
9.4.2.22 :EF Execute function
9.4.2.23 :EK Execute key
9.4.2.24 :EL Set error level
9.4.2.25 :ERC Clear edit region
9.4.2.26 :ERS Set edit region
9.4.2.27 :FE Edit File
9.4.2.28 :FG Get File
9.4.2.29 :FNL Larger Font
9.4.2.30 :FNS Smaller Font
9.4.2.31 :FS Save File
9.4.2.32 :FT Fill
9.4.2.33 :FW Write File
9.4.2.34 :FX Execute File
9.4.2.35 :GAP Get and append
9.4.2.36 :GE Get
9.4.2.37 :GR Get ruler
9.4.2.38 :H Help
9.4.2.39 :I Insert
9.4.2.40 :KA Define character key
9.4.2.41 :KF Define key function string
9.4.2.42 :KGA Define gold character key
9.4.2.43 :KGK Define gold function key key
9.4.2.44 :KK Define function key key
9.4.2.45 :KN Define key function number
9.4.2.46 :LD Decrease indentation
9.4.2.47 :LI Increase indentation
9.4.2.48 :LK Load key definition
9.4.2.49 :LNE Execute keystrokes stored in key
9.4.2.50 :LNL Store keystrokes in key
9.4.2.51 :LNX End learning
9.4.2.52 :LS Set indentation level
9.4.2.53 :M Mark cursor position
9.4.2.54 :NL New line
9.4.2.55 :NS Substitute next
9.4.2.56 :NWC Switch to next unsaved buffer
9.4.2.57 :NWG Switch to next buffer
9.4.2.58 :NWN Switch to next unused buffer
9.4.2.59 :NWU Switch to next used buffer
9.4.2.60 :OE Output error message
9.4.2.61 :OL Open line
9.4.2.62 :OM Output message
9.4.2.63 :OS Toggle overstrike mode
9.4.2.64 :OW Switch to previous buffer
9.4.2.65 :PD Insert current date
9.4.2.66 :PL Load paste buffer
9.4.2.67 :POPCH Restore saved buffer change flag
9.4.2.68 :PR Print current buffer
9.4.2.69 :PS Save paste buffer
9.4.2.70 :PT Insert current time
9.4.2.71 :PUSHCH Save buffer change flag and clear
9.4.2.72 :Q Quit
9.4.2.73 :REP Replace
9.4.2.74 :RF Refresh display
9.4.2.75 :RK Redefine key as character
9.4.2.76 :RL Ruler
9.4.2.77 :RMCHA Clear character delete buffer
9.4.2.78 :RMHEL Clear help buffer
9.4.2.79 :RMLIN Clear line delete buffer
9.4.2.80 :RMPAG Clear page delete buffer
9.4.2.81 :RMPAR Clear paragraph delete buffer
9.4.2.82 :RMPAS Clear paste buffer
9.4.2.83 :RMSEA Clear search buffer
9.4.2.84 :RMSEN Clear sentence delete buffer
9.4.2.85 :RMSUB Clear substitute buffer
9.4.2.86 :RMUNK Clear unknown delete buffer
9.4.2.87 :RMWOR Clear word delete buffer
9.4.2.88 :RS Reset select range
9.4.2.89 :RTAB Replace tabs with spaces
9.4.2.90 :RUL Load ruler from entity
9.4.2.91 :RUS Save ruler in buffer
9.4.2.92 :SASC Show ASCII value
9.4.2.93 :SAVF Save function definitions in a file
9.4.2.94 :SAVK Save key definitions in a file
9.4.2.95 :SC Show current column
9.4.2.96 :SEL Select
9.4.2.97 :SETB Set block/line mode toggle
9.4.2.98 :SETD Set direction toggle
9.4.2.99 :SETF Set cursor behavior toggle
9.4.2.100 :SETK Set typewriter key command execution
9.4.2.101 :SETR Set replace/insert toggle
9.4.2.102 :SETT Set tab insert/expand toggle
9.4.2.103 :SETU Set case sensitivity toggle
9.4.2.104 :SETX Set function expansion toggle
9.4.2.105 :SI Send a shift in character
9.4.2.106 :SK Save key definition
9.4.2.107 :SL Load search buffer
9.4.2.108 :SO Send a shift out character
9.4.2.109 :STAB Replace multiple spaces with tabs
9.4.2.110 :STRP Strip trailing spaces
9.4.2.111 :SUB Substitute
9.4.2.112 :SV Show Version
9.4.2.113 :SYQ Spawn with no output
9.4.2.114 :SYR Spawn with redirected output
9.4.2.115 :SYS Spawn to operating system
9.4.2.116 :TAB Move to next tab stop
9.4.2.117 :TAD Adjust text by one tab stop
9.4.2.118 :TB Toggle Block Mode
9.4.2.119 :TC Toggle Control Character Display
9.4.2.120 :TD Toggle Direction
9.4.2.121 :TF Toggle cusor key behavior
9.4.2.122 :TI Test for input
9.4.2.123 :TK Toggle typewriter key command execution
9.4.2.124 :TM Toggle buffer markers
9.4.2.125 :TP Toggle Cursor Line
9.4.2.126 :TR Toggle ruler display
9.4.2.127 :TS Toggle automatic screen shifts
9.4.2.128 :TT Toggle tab expansion
9.4.2.129 :TU Toggle case sensitivity
9.4.2.130 :TX Toggle functions expansion
9.4.2.131 :UC Undelete character
9.4.2.132 :UL Undelete line
9.4.2.133 :UM Undo last command
9.4.2.134 :UOFF Turn off screen updating
9.4.2.135 :UON Turn on screen updating
9.4.2.136 :UPAG Undelete page
9.4.2.137 :UPAR Undelete paragraph
9.4.2.138 :UPD Update screen header
9.4.2.139 :USEN Undelete sentence
9.4.2.140 :USR Paste
9.4.2.141 :UU Undelete unknown
9.4.2.142 :UW Undelete word
9.4.2.143 :WC Toggle windows
9.4.2.144 :WD Toggle width
9.4.2.145 :WI Select buffer
9.4.2.146 :X Exit
9.4.2.147 :YN Prompt for confirmation
9.4.2.148 :Z Zap buffer
Appendix A Keyboard translation
Appendix B Installation
Appendix C Error Messages
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Sedt Reference Manual
0.0 Structure of This Manual
This manual is divided into three sections: The first a
tutorial that introduces the user to the essential basics of
editing using Sedt. The second an advanced guide that explains
the more complicated functions, and the third a reference that
systematically covers all aspects of the editor. The Tutorial
and Advanced Guide are organized by function: Entering Sedt,
inserting text, moving, etc.. The reference section is organized
alphabetically for easy access.
For the operating environments that differ significantly
from the standard, command driven interface, the manual has
sections that describes the differences.
0.1 Terminology
Sedt is supported on a wide range of systems with a
variety of keyboard layouts. When the manual instructs you to
type a key it will use a generic name for the key, such as
<Return>. Use the tables in Appendix A to locate where the key
is located on your keyboard. The angle brackets are also used to
show where an actual parameter needs to be inserted. E.g. when
you see <line number> you should substitute a decimal number that
denotes a line in your file. A construct surrounded by curly
brackets {} is optional. If a construct is followed by three
periods ... it can be repeated as many times as you wish.
A keystroke sequence described as <Gold> <Key> is entered
by typing the <Gold> key first, then releasing it and typing
<Key>. A sequence described as <Control> <Key> is typed by
holding down the <Control> key while <Key> is typed.
The <Gold> key is the most important key to remember.
It's location on the different keyboards that Sedt supports is:
Keypad PF1 on Digital keyboards, Esc or Num Lock on old IBM PC
keyboards or the new IBM PC keyboard, Esc on old IBM
PC/AT keyboards and Keypad ( on ATARI ST keyboards.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Tutorial
1.0 Getting Started
To start editing a file with Sedt you type the command
"Sedt <file name>" at the operating system command prompt. The
same command is used to create a new file and to edit an existing
file.
For example:
SEDT FOO.BAR
will create a new file named FOO.BAR, or modify the file
if it already exists.
1.1 Display
The Sedt screen display show a section, called a window,
of the file you are editing. What you see is what will be
written to the file. Editors of this type are called WYSIWYG
(What You See Is What You Get) editors. Above and below the
window is displayed information about the edit session and the
settings of options.
The first line on the display , the FILE line, gives you
information about the file you currently are editing.
In the first column you may see an asterisk (*).
This shows that you have modified the file since it was
loaded, or since last time it was saved by you.
Next Sedt shows the name of the file being edited
after the text "File: ". The name is exactly the same
as the one you entered when you called Sedt.
After the text "C=" you will see the column
within the text that the cursor is placed over. On some
versions the column number is not shown for performance
reasons.
The text "L=" is followed by the absolute line
number within the text being edited that the cursor is
placed on.
The next field, after the text "B=" shows which
of several possible file buffers you are editing.
Buffers allow you to edit several files at the same time.
To begin with, Sedt will always display buffer number 0
containing the file you specified when you called Sedt.
More information about buffers is given later in this
manual.
On IBM PCs, PS/2s and compatibles a C will be
displayed in the last column if the Caps Lock is in
effect.
The second line of the display is the RULER. It shows
how the text you are editing will be formatted. You can change
the ruler a number of ways. The ruler shown when you enter Sedt
is the DEFAULT RULER, which most often is the one supplied with
Sedt. You, or your system manager may change the default ruler
or any other ruler stored on disk.
All lines from the third to the third from the bottom are
a WINDOW into the file you are editing. In the window you will
see a portion of the text you are editing. The location of the
blinking cursor shows the position that editing operations will
be performed at.
The second line from the bottom is the MODE line and
shows you the current state of several options within Sedt. All
of these options are under your control.
First, you will see either "Fwd" or "Rev".
Several commands use the status of this mode and will
move toward the beginning of the text when the mode is
"Rev" and toward the end of the text when the mode is
"Fwd".
Secondly you will see either "Ins" or "Rep". In
"Ins" mode, which Sedt starts the session in, all text
insertion will push the character at the cursor to the
right to make room for the new character. In "Rep" mode
the text you type will over-write the text previously on
the screen.
The "Lin" or "Blk" display show how text cut and
paste operations will be performed. More information
about this mode is given in the section dealing with cut
and paste.
"Tab:Exp" or "Tab:Ins" shows whether Sedt
attempts to save file space by inserting horizontal tab
characters. Sedt assumes that the terminal and printer
have tab stops set at 8 column intervals. In
"Tab:Exp" mode, which is the state Sedt is in when
started, it does not use horizontal tab characters.
Several replace mode functions and cut and paste may
return undesired results when "Tab:Ins" is used. It is
recommended that you keep Sedt in "Tab:Exp" mode unless
you are an experienced user of Sedt.
"Case:Off" or "Case:On" shows whether searches
are case sensitive or not. When "Case:Off" text will be
satisfy searches no matter what case any letter has.
With "Case:On" only exact matches in upper and lower case
will satisfy a search.
"Chr" or "Def" shows whether function definitions
are inserted in responses to prompts. When "Chr" is
displayed only characters created by keys are inserted.
When "Def" is displayed pressing a key with an associated
function definition will cause the function definitions
to be inserted.
"Free" or "Rest" shows how the cursor keys work.
If "Free" is displayed, the cursor movement will always
be directly in left, right, up or down. If a line is
shorter than the cursor position you are going to it will
be extended with spaces. When "Rest" is displayed the
left and right arrows will move forward or backward
through the file and when an end or begginning of line is
encountered the cursor will change line. Up and down
arrow keys will nover advance beyond the last character
in a line.
"Shift=" is followed by either a number or the
text "Off". When "Shift=" is followed by a number the
screen window will be shifted horizontally to ensure that
the cursor remains within the window. As the cursor
advances beyond the right-most position on the screen,
the window will be displaced right to move the cursor
back within the screen. When the text "Off" is displayed
the leftmost position of the window will correspond to
the leftmost position of the text.
The next field is blank unless keystrokes are being
learned or replayed. When learning the field will
display "Lrn". When replaying it will display
"Exe".
The field "Mod=" is followed by the numbers of the
editing buffers that contain unsaved changes.
1.2 Moving the cursor
The simplest commands to move the cursor are the arrow
keys.
The <Right arrow> key will advance the cursor by
one character in the text. As the cursor advances beyond
the last character on a line it moves to the start of the
next line.
The <Left arrow> key moves a single character
toward the start of the text. As the cursor moves past
the start of a line it goes to the end of the previous
line.
The <Up arrow> key moves straight up. If the
cursor moves from a position that is further to the right
than the end of the previous line it will move to the end
of it. Sedt remembers the column that a series of
vertical arrow commands started at and will try to
position the cursor at the original column.
<Down arrow> moves the cursor straight down.
Just as with <Up arrow> the cursor will not position
itself further right than the end of a line of text and
will try to position itself at the same column as it was
at when a series of vertical arrow commands were started.
The arrow keys are all that you need to move to any
location in the text. On most systems you can hold the key down
and have the command repeated at a high rate. Sedt can handle
very high rates of command input and cannot be harmed by having
commands repeated.
1.3 Inserting Text
Inserting text is easy with Sedt. Simply place the
cursor where you want the first character and type the text. If
there are characters over or to the right of the cursor they will
be pushed to the right as you type. To end a line of input and
continue on the next line simply type a <Return>. You can enter
an arbitrary ASCII character by typing <Gold>, then the decimal
value of the character on the normal typewriter keyboard and then
<Gold> and finally <Keypad 3>.
1.4 Deleting Text
Text is easily deleted by moving the cursor to the right
of the character you want to delete and typing the <Delete> key.
If the cursor is at the far left of a line it will be moved to
the end of the previous line.
1.5 Saving your changes
When you have finished your changes you can save them
and leave Sedt by typing two keys after one another: <Gold> and
the F key.
If you decide not to keep the changes you can type <Gold>
and Q. If you have made any changes to the file you will be
asked for confirmation before your changes are thrown away.
Answer the affirmative if you are sure you do not need them.
If, for some reason such as a power failure, you cannot
complete an editing session, there is still hope. Sedt will at
regular intervals save the file you are editing. These saves are
only done if you have made changes to the file.
1.6 Summary
With the commands described in the tutorial you can make
any change you need! Therein lies the beauty of Sedt. It is
extremely easy to use, fast and reliable. The rest of the
commands extend Sedt by allowing you to perform complex tasks
with a few simple keystrokes. The Advanced Guide takes you
through all these powerful features.
1.7 Limitations
Sedt uses a combination of RAM memory and disk memory to
store the information it is working on. This includes files
being edited, current key definitions and text that has been
deleted. If the total amount of information exceeds available
memory Sedt will abort, but will leave the a chekpoint file if
autosave has been in effect. You can then make more room
available and restart the edit session and load the checkpoint
file.
Sedt also has an internal limit which cannot be exceeded.
If you crash because this limit has been exceeded and you have
been editing several buffers, you may be able to recover by
editing each file separately.
The internal limits are 20MB for the VMS and VAX ULTRIX
versions and 1MB for all other versions. These are defaults
which can be extended with the -s qualifier.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Advanced Guide
2.1 Introduction
The Advanced Guide attempts to take you logically through
the extremely rich command set of Sedt. Even though care has
been taken not to mention features without describing them, you
may find that you have to cross-reference different sections
before you fully understand a feature. The Reference section may
come in very useful for this purpose.
2.2 Entering Sedt
The complete syntax for calling Sedt is
SEDT {<Input File> {-o<Output file>}} {<Option>... }
The input file will be loaded into buffer number 0, which
is the editing buffer at start-up. If an output file is
specified, buffer 0 will be saved into the specified file by
default.
Options change the behavior of Sedt for the complete
editing session. A complete list of options follows:
2.2.1 -<Line Number>
After initialization Sedt will position
the cursor at the start of the line
number you provided. This function is
most useful for programmers that need to
go to a line number that the compiler has
passed a syntax error message for.
2.2.2 -a
Turns autosaves on for the editing
session. Autosaves ensures that your
file is saved at regular intervals in
case of a system crash. Autosaved copies
are stored in files with the extension
.AUS.
2.2.3 -at
Suppresses Sedt's automatic recognition
of the system and makes Sedt assume that
it is running on an IBM AT with the AT
keyboard. Use this when the recognition
code fails to recognize the system
properly.
2.2.4 -b
Suppresses the renaming of old versions
when files are saved. By default Sedt
will rename any existing file to .BAK on
the MS-DOS and ATARI versions before
writing the new version. This allows you
to recover from editing sessions where
you have accidentally corrupted the file.
On VMS there is no need for .BAK files
since VMS supports multiple generations
of files. Normally -b is used when disk
space is too tight for both the new file
and the backup.
2.2.5 -co
Suppresses Sedt's automatic recognition
of the system and makes Sedt assume that
it is running on a color system. Use
this when the recognition code fails to
recognize the system properly.
2.2.6 -e
Terminate all files written with an ASCII
SUB character. Some applications require
a SUB character to recognize the end of
data files.
2.2.7 -edt
Use the EDT layout with physical mapping
to the LK250 keyboard. This switch is
not applicable to VMS.
2.2.8 -ega
Switch the display into EGA 43 line mode
during the session and switch back into
25 line mode at the end.
2.2.9 -f
Disables full screen editing. The cursor
will always be placed in the middle of
the window and text will move around it.
In full screen mode the cursor will move
around the window in a manner that
minimizes screen updates.
2.2.10 -i<File Name>
Read internal Sedt commands from the
given file after initialization and
before accepting keyboard input. Using
the -i option prevents automatic
execution of the default initialization
file.
2.2.11 -k
Suppresses Sedt's automatic recognition
of the keyboard type and informs Sedt
that the system uses the enhanced IBM
keyboard.
-k<type>
Suppresses Sedt's automatic recognition
of the keyboard and forces Sedt to use
<type> as the prefix for keyboard map and
help files.
2.2.12 -l<Size>
Limits the main memory buffering of
information to <Size> bytes. This option
is used to ensure that enough memory is
left over to spawn sub-processes on
MS-DOS systems. This option has no
effect on other than MS-DOS
implementations.
2.2.13 -m<Hex number>
Changes the video mode of Sedt under DOS
to <Hex number>. Sedt understands the
following video modes and sets the screen
size and type as follows:
Mode Color Columns Lines
0 Color 40 25
1 Color 40 25
2 Color 80 25
3 Color 80 25
7 Mono 80 25
54 Color 132 43
55 Color 132 25
56 Mono 132 43
57 Mono 132 25
2.2.14 -mo
Suppresses Sedt's automatic recognition
of the system and makes Sedt assume that
it is running on a monochrome system.
Use this when the recognition code fails
to recognize the system properly.
2.2.15 -p<PID>
Informs Sedt of the Process ID of the
parent process. This option is only used
on the VMS version of Sedt and creates a
resident version of Sedt. On exit Sedt
will attach to the parent process and
remain resident. Upon reattachment Sedt
will continue the editing session.
2.2.16 -pc
Suppresses Sedt's automatic recognition
of the system and makes Sedt assume that
it is running on an IBM PC with the PC or
XT keyboard. Use this when the
recognition code fails to recognize the
system properly.
2.2.17 -r
When you supply the -r qualifier all
files written to disk will have the last
line terminated with an ASCII CR
character. Use this when you are writing
or editing a file for an application that
requires this.
2.2.18 -rb
Suppresses Sedt's automatic recognition
of the system and makes Sedt assume that
it is running on a Digital Rainbow 100.
Use this when the recognition code fails
to recognize the system properly.
2.2.19 -ro
Set the buffer that the file is loaded
into in read only mode.
2.2.20 -s<Size>
Set the maximum amount of buffer space to
<Size> megabytes. The buffer space is
used to contain files being edited,
delete and paste buffers plus key
definitions.
2.2.21 -v
On IBM PCs and compatibles Sedt will
write directly to video RAM. The result
is a faster display than when the video
firmware calls are used. It may,
however, be incompatible with some video
adaptors. The -v argument forces Sedt to
use BIOS calls for all screen output.
2.2.22 -wi
Use the window defined by the upper left
hand corner with coordinates XX,YY (0
based) and dimensions HH,WW.
2.2.23 -wps
Use the WPS layout with physical mapping
to the LK250 keyboard. This switch is
not applicable to VMS.
2.2.24 -xt
Suppresses Sedt's automatic recognition
of the system and makes Sedt assume that
it is running on an IBM XT with the PC or
XT keyboard. Use this when the
recognition code fails to recognize the
system properly.
2.3 Sedt's Data Files
For Sedt to function properly it needs a number of data
files. To help organize the files Sedt uses the concept of
libraries where the operating system supports such a facility.
The files used by Sedt are:
An optional configuration file that sedt uses to
set various options. The name of the
configuration file is always SEDT.CNF.
A keyboard map file that determines key to
function mapping.
A function definition file that defines all
predefined functions.
A Help file that can displayed during an editing
session to assist the user in remembering the
programming of the keyboard.
A file containing a graphical display of the
keyboard commands.
A default ruler file that is used to set the
ruler at initialization time.
A set of optional ruler files that can be loaded
or saved during an editing session.
An optional command file that is executed during
Sedt initialization for customization of the
editing interface.
On MS-DOS, OS/2, ATARI ST, and UNIX the data files are
located through a combination of the default directory, and the
environment variables SEDT, SEDTP, and PATH. Key map, function
definition and help files are looked for in the following order:
default directory, the directory that SEDTP points to, the
directory SEDT points to and finally in all directories pointed
by PATH. Ruler files, SEDTCOM.TXT, SEDT.REM, user supplied
initialization files are looked for in the order: default
directory, the directory SEDTP points to, the directory SEDT
points to and finally in all directories pointed to by PATH.
SEDT and SEDTP must be defined as a single directory as in SET
SEDT=C:\SEDT\. This scheme allow a lot of flexibility in
organizing Sedt's files. On single user systems the most
efficient is to define SEDT only. On multiuser systems or
networks SEDT can be set up to point at a shared, read only
directory and SEDTP at a private writable directory that is
different for every user. The easiest, but least efficient is to
install Sedt in a directory that is included in PATH.
The names of the files under MS-DOS, OS/2, ATARI ST, and
UNIX depend on the configuration. This facilitates using SEDT
from a shared server directory with different PC models.
The configuration file is always named SEDT.CNF.
The function definition file names are:
FUNDEF.yyy
Key mapping files are:
For VMS:
VAX/VMS VT100 VT100M.yyy
VAX/VMS VT200 VT200M.yyy
For UNIX:
UNIX VT100 vt100m.yyy
UNIX VT200 vt200m.yyy
SCO XENIX
console ansim.yyy
On DOS, OS/2 and ATARI:
System Keyboard File
Rainbow LK201 RBxxxM.yyy
IBM PC IBM PCxxxM.yyy
IBM PC/XT IBM PCxxxM.yyy
IBM PC/AT IBM ATxxxM.yyy
IBM CONVERTIBLE IBM CVxxxM.yyy
PS/2 IBM NPxxxM.yyy
ANY IBM PC ENHANCED NPxxxM.yyy
ANY IBM PC LK250 LKxxxM.yyy
TANDY 1400 LT TANDY TCxxxM.yyy
Compaq SLT Compact SLTxxxM.yyy
ATARI ST STxxxM.yyy
Where xxx is DOS for MS/DOS, WIN for Microsoft
Windows, OS2 for OS/2 and TOS for ATARI TOS and
GEM. yyy is EDT for EDT style mapping and WPS
for WPS style mapping.
The name of the help file is:
HELP.yyy
The names of the graphical keyboard display files are:
System Keyboard File
Rainbow LK201 RBxxxH.yyy
IBM PC IBM PCxxxH.yyy
IBM PC/XT IBM PCxxxH.yyy
IBM PC/AT IBM ATxxxH.yyy
IBM CONVERTIBLE IBM CVxxxH.yyy
PS/2 IBM NPxxxH.yyy
ANY IBM PC ENHANCED NPxxxH.yyy
ANY IBM PC LK250 LKxxxH.yyy
TANDY 1400 LT TANDY TCxxxH.yyy
Compaq SLT Compact SLTxxxH.yyy
VAX/VMS VT100 VT100H.yyy
VAX/VMS VT200 VT200H.yyy
ATARI ST STxxxH.yyy
UNIX VT100 vt100h.yyy
UNIX VT200 vt200h.yyy
SCO XENIX console ansi.hlp
Where xxx is DOS for MS/DOS, WIN for Microsoft
Windows, OS2 for OS/2 and TOS for ATARI TOS and
GEM. yyy is EDT for EDT style mapping and WPS
for WPS style mapping.
The initialization file is named SEDTCOM.TXT and must be
located in the directory pointed to by the environment variable
SEDT.
On the ATARI ST under ATARI GEM all files must be in the
current directory.
On the ATARI ST under the Mark Williams C shell the
library for all data files used by Sedt is defined by the
environment variable SEDT. The contents of the environment
variable has the name of the data file appended to it to locate
the data file. If no environment variable is defined the files
must be found in the default directory. To set up the
environment use the SET command. SETENV SEDT=C:\SEDT\ specifies
that the files are found in the directory SEDT on drive C.
The names are:
Key mapping file: STTOSM.yyy
Key definition file: FUNDEF.yyy
Help file: HELP.yyy
Keyboard display file: STTOSH.yyy
Initialization file: SEDTCOM.TXT
Where yyy is EDT for EDT style mapping and WPS for WPS
style mapping.
The names of the ruler files are RULERn.TXT where n is a
digit from 0 to 9. RULER0.TXT is the default ruler file. The
initialization command file is named SEDTCOM.TXT.
2.3.1 Configuration File
The configuration file, SEDT.CNF, is an ASCII data file
containing one-line commands. Valid commands are:
2.3.1.1 AUTOSAVE=ON (Default)
After any change to a buffer Sedt will
count the keystrokes made while editing
the buffer. After 180 keystrokes a
warning will be displayed on the bottom
line. If the File has not been saved
after 200 keystrokes, Sedt saves it
automatically in a file in the same
directory as the file being edited, but
with the extension .AUS. The autosaved
version is automatically deleted when the
file is properly saved. If an autosaved
file is found when a file is loaded you
will be asked whether you want to load
the autosave instead. If you provide the
wrong answer to this question reload the
file.
AUTOSAVE=n,m
Will autosave after n keystrokes and
display the warning m keystrokes before
the autosave is due.
AUTOSAVE=OFF
Autosaving is disabled.
2.3.1.2 BACKUPFILE=ON (Default)
Causes Sedt to ensure that a backup
version of all files are kept.
BACKUPFILE=OFF
Causes Sedt to not create backup versions
of saved files.
2.3.1.3 BUFFERING=EMS (default)
On MS-DOS files being edited will be
buffered in EMS memory before overflowing
to free DOS memory and disk.
BUFFERING=NOEMS
EMS memory will not be used for buffering
of files.
BUFFERING=FREE (default)
On MS-DOS files being edited will be
buffered in free DOS memory before
overflowing to disk. You may not be able
to spawn to DOS when editing large files
when this option is set.
BUFFERING=NOFREE
Free DOS memory will not be used for
buffering of files. This preserves the
ability to spawn out of Sedt, but may
impact performance.
2.3.1.4 COLUMN=DISPLAYED (Default, except VMS and ULTRIX)
Enables continuous display of the current
cursor column on the banner line. This
is the default on all versions other than
VMS and ULTRIX. Enabling this option on
VMS and ULTRIX may have a significant
impact on performance across a network.
COLUMN=OFF (Default for VMS and ULTRIX)
Disables continuous display of the
current cursor column on the banner line.
This is the default on VMS and ULTRIX.
2.3.1.5 CONTEXT=SAVED
Save the editing context when a file is
saved. The context, containing the
current position, all marks and the
current ruler are saved in a file with
the same file name and the extension
.CTX. When Sedt edits a file, and this
option is set, it will look for the file
.CTX and restore the context. The result
is that when a file is edited again the
cursor and marks from the previous edit
session will be restored.
If you have two files in the same
directory with identical filenames, they
will default to the same .CTX file and
the .CTX file may be overwritten by the
.CTX file for the other file. To
safeguard against loading the wrong file
Sedt will verify that a file and it's
corresponding .CTX file match. If a
mismatch is found the message "Context
file does not match input file" will be
issued.
CONTEXT=FORGOTTEN (Default)
To not perform the actions described
under CONTEXT=SAVED.
CONTEXT=CHECK
Do not save a context (.CTX) file
automatically, but check for the presence
of one when loading a file and use it of
it is found.
2.3.1.6 CONTROLZ=ON
Causes Sedt to terminate all files
written with a control Z (EOT) character.
CONTROLZ=OFF (Default)
Causes Sedt to not terminate files
written with a control Z (EOT) character.
2.3.1.7 CURSOR=FREE
The cursor can move freely on the screen.
Lines will be padded to the cursor
position.
CURSOR=RESTRICTED (Default)
The cursor can only move to positions
within the file.
2.3.1.8 CURSORLINE=FIXED
Causes Sedt to keep the cursor on the
middle line of the editing window. The
benefit is ease of finding the current
position and always being able to see
several lines above and below the cursor.
CURSORLINE=FLOATING (Default)
Causes Sedt to float the cursor through
the editing window. The benefit is fewer
screen scrolls.
2.3.1.9 DEFINITIONS=ON
When a key with an associated function
definition is pressed in response to a
prompt the definition will be inserted.
DEFINITIONS=OFF (Default)
When a key with an associated function
definition is pressed in response to a
prompt the character associated with the
key is inserted.
2.3.1.10 DIALOG=ON
Windows and GEM versions will use dialog
boxes to prompt for input instead of
using the bottom line of the display.
DIALOG=OFF
Windows and GEM versions will use the
bottom line of the display to prompt for
input.
2.3.1.11 EGA43=ON
Causes Sedt to switch the display into 43
line mode. Unpredictable results can be
expected on other than EGA displays.
EGA43=OFF (Default)
Turns off 43 line mode.
2.3.1.12 FONTSIZE=<number>
Causes Sedt to default to a font that is
close to <number> pixels high.
2.3.1.13 GOLD
Has no effect. Setting the gold key is
done in the key mapping file starting
with version 4.0.
2.3.1.14 JOURNALING
Has no effect in the current version of
Sedt and exists only for historic reasons.
2.3.1.15 KEYBOARD=STANDARD
Forces Sedt to assume that the system
uses the original PC and XT keyboard.
KEYBOARD=LK250
Forces Sedt to assume that the system has
an LK250 keyboard attached.
KEYBOARD=NEW
KEYBOARD=ENHANCED
Forces Sedt to assume that the system has
the new style IBM keyboard attached.
KEYBOARD=CONVERTIBLE
Forces Sedt to assume that the system has
an IBM keyboard convertible keyboard
attached.
KEYBOARD=AT
Forces Sedt to assume that the system
uses an original AT style keyboard.
KEYBOARD=SLT
Forces Sedt to assume that the system
uses a Compaq SLT keyboard.
KEYBOARD=<type>
Forces Sedt to use <type> as the prefix
for keyboard map and help files.
2.3.1.16 KEYPROG=ON (Default)
Normal typewriter keys will behave as any
other key when programmed. If the key
has not been programmed the key will
insert the ASCII character bound to the
key.
KEYPROG=OFF
When a normal typewriter key is pressed
the ascii character bound to it will be
inserted even if the key has been
programmed. Getting at the programming
for a typewriter key must be done
indirectly through the :EK command.
2.3.1.17 MAPPING=EDT (Default)
Use .EDT extensions on key map,
definition and help files.
MAPPING=WPS
Use .WPS extensions on key map,
definition and help files.
MAPPING=<String>
Use .<string> as extentions on key map,
definition and help files.
2.3.1.18 MAXSCROLL=<Number>
Limits scrolling during cursor movement
to <Number> lines.
2.3.1.19 MODE=<Hex Number>
Use video mode <Hex Number> on PC
compatible systems.
Mode Color Columns Lines
0 Color 40 25
1 Color 40 25
2 Color 80 25
3 Color 80 25
7 Mono 80 25
54 Color 132 43
55 Color 132 25
56 Mono 132 43
57 Mono 132 25
2.3.1.20 MOUSE=ENABLED (Default)
Enabled use of the mouse from Sedt. Sedt
will try to detect the presence of a
mouse and enable the use of the mouse
cursor.
MOUSE=DISABLED
Sedt will not use a mouse even if it is
present.
2.3.1.21 NUMLOCK=SET (Default if the Num Lock key is
mapped by the keyboard map file)
Saves the Num Lock state when Sedt is
entered and then sets it. On exit from
Sed the Num Lock state is retored.
NUMLOCK=CLEARED
Saves the Num Lock state when Sedt is
entered and then clears it. On exit from
Sedt the Num Lock state is restored.
2.3.1.22 PALETTE=<hex string>
Causes Sedt to use the characters given
in <hex string> as it's palette. Each
pair of hex digits determines the
attribute character as defined for the
IBM Color Graphics Adapter. The position
of the pair defines the use of the
attribute character: (Sedt only uses the
REVERSE and BOLD attributes).
NORMAL
BOLD
BLINK
BOLD BLINK
UNDERLINE
BOLD UNDERLINE
BLINK UNDERLINE
BOLD BLINK UNDERLINE
REVERSE
BOLD REVERSE
BLINK REVERSE
BOLD BLINK REVERSE
UNDERLINE REVERSE
BOLD UNDERLINE REVERSE
BLINK UNDERLINE REVERSE
BOLD BLINK UNDERLINE REVERSE
2.3.1.23 REMEMBER=ON
Remember the filename that Sedt last was
called with and use this filename when
Sedt is called without any file
arguments.
REMEMBER=OFF (Default)
Do not load any file when Sedt is called
without any file arguments.
2.3.1.24 RETURN=ON
Causes Sedt to ensure that the last line
of saved files is terminates with a CR/LF
pair.
RETURN=OFF (Default)
Causes Sedt to not append a CR/LF pair to
the last line of saved files.
2.3.1.25 RULER=ON (Default)
The current ruler will be displayed at
the top of the window.
RULER=OFF
No ruler will displayed unless Sedt is in
ruler definition mode.
2.3.1.26 SCREEN=COLOR
Forces Sedt to use color graphics
firmware calls.
SCREEN=MONO
Forces Sedt to use monochrome firmware
calls.
2.3.1.27 SCREENSHIFT=ON (Default)
Enables horizontal shifting of the screen
to keep the cursor position on-screen.
The screen is shifted a half-screen at a
time.
SCREENSHIFT=OFF
Disables horizontal shifting of the
screen.
SCREENSHIFT=<decimal number>
Enables horizontal shifting of the screen
to keep the cursor position on-screen.
The number of characters shifted each
time is given by <deciman number>.
2.3.1.28 SHAREMESSAGE=ON (Default)
When exiting, Sedt prints a message
informing the operator that it is a
shareware program.
SHAREMESSAGE=OFF
Suppresses the shareware message on exit.
2.3.1.29 SYSTEM=IBMPC
Forces Sedt to assume that it's running
on an IBM PC or compatible.
SYSTEM=IBMXT
Forces Sedt to assume that it's running
on an IBM PC/XT or compatible.
SYSTEM=IBMAT
Forces Sedt to assume that it's running
on an IBM PC/AT or compatible.
SYSTEM=VAXMATE
Forces Sedt to assume that it's running
on a Digital VAXmate.
SYSTEM=PC100
Forces Sedt to assume that it's running
on a Digital Rainbow 100.
SYSTEM=IBMCONVERTIBLE
Forces Sedt to assume that it's running
on an IBM Convertible.
SYSTEM=IBMAT-339
Forces Sedt to assume that it's running
on an IBM PC AT model 339.
SYSTEM=IBMXT-286
Forces Sedt to assume that it's running
on an IBM PC XT model 286.
SYSTEM=PS/2-50
Forces Sedt to assume that it's running
on an IBM PS/2 model 50.
SYSTEM=PS/2-60
Forces Sedt to assume that it's running
on an IBM PS/2 model 60.
SYSTEM=IBMXT-II
Forces Sedt to assume that it's running
on an IBM XT with new firmware.
SYSTEM=PS/2-30
Forces Sedt to assume that it's running
on an IBM PS/2 model 30.
SYSTEM=PS/2-80
Forces Sedt to assume that it's running
on an IBM PS/2 model 80.
SYSTEM=TANDY1400
Forces Sedt to assume that it's running
on a TANDY 1400 LT laptop computer.
SYSTEM=VT100
SYSTEM=VT200
SYSTEM=VT300
SYSTEM=VT52
SYSTEM=VK100
SYSTEM=ANSI
Forces Sedt to assume it is being run
from the specified terminal type.
2.3.1.30 TABS=EXPANDED (Default)
Causes Sedt to use space characters to
space to tab stops and indentation.
TABS=INSERTED
Cases Sedt to use space and tab
characters to space to tab stops and
indentation.
2.3.1.31 VIDEO=BIOS
Makes Sedt use BIOS calls for video
control on IBM PCs and compatibles.
VIDEO=DIRECT (Default)
Makes Sedt access video RAM directly on
IBM PCs and compatibles.
2.4 Initialization
The initialization sequence for Sedt will go through the
following steps:
First the configuration file SEDT.CNF in Sedt's
library is read and Sedt is configured as described in
the file.
Then a default ruler file is read from Sedt's
library. The name of the default ruler file is
RULER0.TXT.
On DOS, OS/2, Microsoft Windows and ATARI ST a key
mapping file is read next. This file translates keyboard
scan codes into function key codes. The file names are:
System Keyboard File
Rainbow LK201 RBxxxM.yyy
IBM PC IBM PCxxxM.yyy
IBM PC/XT IBM PCxxxM.yyy
IBM PC/AT IBM ATxxxM.yyy
IBM CONVERTIBLE IBM CVxxxM.yyy
PS/2 IBM NPxxxM.yyy
ANY IBM PC ENHANCED NPxxxM.yyy
ANY IBM PC LK250 LKxxxM.yyy
TANDY 1400 LT TANDY TCxxxM.yyy
Compaq SLT Compact SLTxxxM.yyy
ATARI ST STxxxM.yyy
Where yyy is EDT for EDT style mapping and WPS
for WPS style mapping.
Next, the key definition file is read from Sedt's
library. The name of the key definition file depends on
the system that Sedt is run on:
System Keyboard File
MS/DOS KEYDEF.yyy
Microsoft Windows KEYDEF.yyy
OS/2 KEYDEF.yyy
ATARI ST KEYDEF.yyy
VAX VT100 VT100M.yyy
VAX VT200 VT200M.yyy
UNIX VT100 vt100.key
UNIX VT200 vt200.key
SCO XENIX console ansi.key
Where yyy is EDT for EDT style mapping and WPS
for WPS style mapping.
Next Sedt will position the cursor at the line
number requested in the command line if a -<line number>
qualifier was supplied.
Then Sedt will look in Sedt's library for a file
containing initialization commands for the editor. If a
file is found it's contents will be interpreted as
internal Sedt commands. The name of the file is
SEDTCOM.TXT.
Finally, Sedt will look for a checkpoint file in
the same directory as the file you are editing and with
the same name except for the extension .AUS. If one is
found, Sedt will ask you whether you want to load the
checkpoint file instead.
2.5 Setting up the ruler
Sedt offers several options for formatting the text that
you input. The current formatting options are displayed on the
ruler line on the second line of the display.
The initial contents of the ruler line are defined by a
file in the standard directory for Sedt. When Sedt is called it
reads the contents of the file RULER0.TXT and loads the contents
into the ruler.
You can change the ruler either by loading a ruler file
or by changing it interactively. Most ruler changes are done by
entering RULER MODE by typing <Gold> R, which takes the cursor up
into the ruler line. When you have finished changing the ruler
type <Return>, which will take you back to normal editing mode.
The following commands are valid in ruler mode:
<Right Arrow> Moves the cursor one column to the right.
<Left Arrow> Moves the cursor one column to the left.
<Gold> <Digit> Saves the current ruler in Sedt's
standard directory in a file named
RULER<Digit>.TXT.
<Digit> Loads a saved ruler from Sedt's standard
directory in a file named
RULER<Digit>.TXT.
<Control> H
Moves the cursor to column one.
<Tab> Moves the cursor to the next non-blank
position on the ruler.
<Return> Exits ruler mode.
<Space> Clears any ruler controls at the current
cursor position.
L Sets the left margin at the current
cursor position.
When a <Return> is entered the cursor
will be indented to the left margin.
W Sets the word wrap at the current cursor
position.
When input is typed to the right of the
right margin or the justification column,
the input will be wrapped and indented to
the word wrap column or automatic margin
column.
R Sets the right margin at the current
cursor position.
If any input is typed to the right of the
right margin the text will be wrapped and
indented to the word wrap column or
automatic margin column.
J Sets the justification column at the
current cursor position.
If any input is typed to the right of the
justification column, the text will be
justified by having the spacing between
words on the line modified until a
straight right margin at the
justification column is achieved. Any
text that cannot fit on the current line
is wrapped to the next line and indented
to the word wrap column or the automatic
margin column.
I Sets the indentation level at the current
cursor position.
If a <Tab> is entered to the left of the
indentation column, the cursor will be
advanced to the indentation column.
T Sets a tab stop at the current cursor
position. Tab stops can only be set up
to column 232, they are fixed at 8
character intervals beyond that.
If a <Tab> is entered to the left of a
tab stop the cursor will be advanced to
the tab stop.
A Sets the automatic margin at the current
cursor position.
When text is wrapped by typing to the
right of the right margin or
justification column, or a <Return> is
typed and the automatic margin is active,
the cursor will be advanced to the same
column as the leftmost printable
character on the line the cursor was on
before the character was typed. The
automatic margin will also be moved to
this position. This feature is most
useful for structured programming.
- Clears tab stops at the current cursor
position.
Some of the tab controls are mutually exclusive and
setting one of these will automatically cancel those options that
it excludes. The following options are mutually exclusive:
A and W
R and J
If several option are set at the same column the ruler
will only display one of them.
To cancel an option other than T, place the cursor on
column 1 and type the option. The only exception to this rule is
A. This can only be canceled by typing R in any position.
Saved rulers allow you to set up to 10 different ruler
settings according to your preference. You can change the ruler
that Sedt loads after start-up by saving the setting you desire
in ruler number 0.
Example rulers:
A T T T T ...
This ruler is most convenient for structured
programming. Every time a return is entered Sedt will
indent to the left margin of the line just terminated.
W L T T R ...
Every time a return is entered the cursor will be
indented to the position of the L on the ruler line.
When text is typed to the right of R the line will be
wrapped to the left margin.
I L W T J ...
This ruler will cause text to be filled between W
and J. When a return is entered the cursor will be
indented to the L.
2.6 Options/Modes
The bottom line of the display shows the state of several
options that affect how Sedt commands work. Each of these has a
default state.
Forward/Reverse (default:Forward)
Most cursor commands move in the direction shown
by the direction state.
To change the direction state type <Keypad 4> or
<Keypad 5>.
Insert/Overstrike (default:Insert)
When text is inserted in insert mode it pushes
any characters at or to the right of the cursor to the
right to make room for the text being inserted. In
replace mode text originally at the cursor position is
overwritten.
To change the state between insert and overstrike
modes type <Gold> O.
Line/Block (Default:Line)
This state only has effect when cutting or
pasting text.
In line mode a cut will remove all text between
the select point and the cursor position, and a paste
will insert the contents of the paste buffer at the
cursor position.
In block mode a cut will remove the rectangle of
text defined by the select point and the cursor position
and a paste will push all text from the cursor column to
the right to make room for the contents of the paste
buffer.
To change between line and block mode type <Gold>
L.
Tabs:Expanded/Tabs:Inserted (Default:Tabs:Expanded)
When tabs are expanded Sedt will always use ASCII
Space characters to indent text. When tabs are inserted
Sedt will use ASCII HT and Space characters. It is
recommended that the state be left as tabs expanded.
To change the tab mode type <Gold> I.
Screen Shift=<Number>/Screen Shift=Off (Default:Screen Shift=0)
If screen shift is off the leftmost character
position on the screen will always correspond to the
first column of the text file.
If screen shift shows a number, Sedt will keep
the cursor within the visible screen by shifting the
screen horizontally through the file. The number shown
is the number of columns hidden to the left of the
screen. This process is totally automatic.
To change the screen shift mode type <Gold> A.
Learning/Executing
The Learning mode indicator shows that Sedt is
storing all keyboard input for later reexecution.
<Gold> F17> will store learned keystrokes into
^B. Terminate learning by typing ^B. The stored
keystrokes are executed by typing ^B again.
<Gold> <F18> will prompt for a key to store
keystrokes in and then store subsequent keystrokes until
the same key is typed. To execute the stored keystrokes
type the key you stored them in.
The Executing mode indicator shows that Sedt is
reexecuting a stored sequence of keystrokes.
Execute mode is entered by typing <Gold> <F18>
2.7 Responding to Prompts
Some commands, such as the search command, require
arguments. Such commands will write a prompt on the bottom line
of the screen and wait for you to enter a response. You can
enter the following when responding to a prompt:
Any key on the typewriter keyboard will be entered into
the prompt string at the cursor position.
<Control> U
Will abort the command.
<Return>
<Keypad Enter>
<Do>
Completes the response to the prompt.
<Delete>
<Backspace>
Deletes the character behind the cursor.
<Gold> <Return>
Inserts a CR/LF pair in the prompt buffer.
<Left Arrow>
Moves the cursor one character left.
<Right Arrow>
Moves the cursor one character right.
<Up Arrow>
If typed before any other character will recall
the previous response to a prompt. Successive
<Up Arrow>s will move through the last 10
responses.
<Down Arrow>
If <Up Arrow> has recalled previous responses,
<Down Arrow> will move forward towards the last
response.
Other control characters will be inserted at the cursor
position.
Function keys will insert the programming of the keys at
the cursor.
A special prompt is used to confirm actions that
potentially may cause significant losses of data such as quitting
an edit session without saving all changes. These prompts pose a
question, followed by <Y/N>:. Responses to these prompts may be
a y or Y to confirm, a n or N affirm or <control> U to abort the
command that generated the question.
2.8 Repeating Commands
Most commands can be repeated by typing first <Gold> and
then the number of times you want the command repeated on the
normal typewriter keyboard before typing the command.
A few commands do not accept such a repeat count, either
because it makes no sense, or because the number is used for
other purposes.
As you type the number it will be shown on the message
line of the display.
If you happen to mistype the number you can delete it
digit by digit with the <Delete> key.
2.9 Cursor Movement
Cursor movement commands come in two flavors. Some
take the direction of movement from the direction flag, which is
displayed in the first field of the mode line, whereas others
always move in a fixed direction. The direction determined by
the direction flag is called the DEFAULT DIRECTION.
The direction flag is controlled with the following
commands:
<Gold> +
<Gold> >
<Keypad 4>
Set the direction flag to forward: toward the
end of the text in the buffer. <Keypad 4>
changes the direction permanently. <Gold> + and
<Gold> > only changes it for the next command.
<Gold> -
<Gold> <
<Keypad 5>
Set the direction flag to reverse: toward the
beginning of the text in the buffer. <Keypad 5>
changes the direction permanently. <Gold> - and
<Gold> < only changes it for the next command.
Most movement commands can be repeated by typing <Gold>
and then typing the number of times you want the command repeated
immediately before you type the command. The number must be
typed on the normal typewriter keyboard.
Commands that move the cursor are:
<Gold> .
Moves the cursor to a previously set mark. There
are 9 different marks that you can set. To move
to mark number 1 type <Gold> . . To move to any
of the other marks type <Gold> followed by the
number of the mark (1 to 9) on the normal
typewriter keyboard and then <Gold> . . Marks
are useful for jumping back and forth between
different points in the buffer.
<Gold> B
<Gold> <Keypad 4>
Moves the cursor to the position just after the
last character of text in the buffer.
<Gold> M
Sets a mark at the current position of the
cursor. To set mark number 1 type <Gold> M. To
set other marks (1 to 9) type <Gold> followed by
the number of the mark on the normal typewriter
keyboard and then <Gold> M.
<Gold> T
<Gold> <Keypad 5>
Moves the cursor to the first character in the
buffer.
<Gold> U
If you type <Gold> U as the first input after a
movement command the cursor will be moved back to
the position it was at before the move. This
command is very useful to undo undesired moves.
Several commands that delete text can also be
undone with <Gold> U. If the last command cannot
be undone you will receive an error message.
<Control> H
Will move the cursor to the beginning of a line.
If the cursor already is at the beginning of a
line it will be moved to the beginning of the
previous line.
<Find>
<PF3>
Will search in the default direction for the
string given in the last <Gold> <Find> or <Gold>
<Keypad 9> command. The <Find> command is
insensitive to the case of the string.
<Prev Screen>
Moves up by one fewer lines than there are in the
window. The cursor is positioned at the start of
the line.
<Next Screen>
Moves down by one fewer lines than there are in
the window. The cursor is positioned at the
start of the line.
<Up Arrow>
Moves one line up and tries to keep the cursor at
the same column as it was at before a sequence of
up and down arrow moves.
<Left Arrow>
Moves one character backward.
<Down Arrow>
Moves one line down and tries to keep the cursor
at the same column as it was at before a sequence
of up and down arrow moves.
<Right Arrow>
Moves one character forward.
<Keypad 0>
Moves in the default direction to the next
beginning of line.
<Keypad 1>
Moves in the default direction to the next
beginning of a word. Spaces before a word are
skipped. A word is either a single
non-alphanumeric character or a word composed of
alphanumeric characters.
<Keypad 2>
Moves in the default direction to the next end of
line. If the cursor already is at the end of a
line it will move to the end of the next line.
<Keypad 3>
Moves one character in the default direction.
<Keypad 7>
Moves in the default direction to the next start
of page. The start of page is determined by an
ASCII FF character (Which is inserted with <Gold>
P). If there are no more ASCII FF characters the
cursor will be moved to the end of the buffer.
<Keypad 8>
Moves in the default direction to the next start
of a paragraph. Paragraphs are delimited by a
minimum of one empty line. The cursor is placed
over the first non-blank character in the
paragraph.
<Gold> <F19>
Moves to bracketing character that matches the
one under the cursor. Matching characters are ',
", <, >, [, ], {, }, (, and ). ' and " are
searched for in the current direction, all other
characters are searched for in the direction that
the character implies. If the cursor is not
placed over one of the above characters an error
message will be displayed.
<Gold Find>
<Gold> <PF3>
Prompts for a string on the bottom line of the
display and then searches in the default
direction for an occurrence of the string. The
search is independent of the case of any
alphabetic characters in the string. If an empty
response is given to the prompt the string
entered in response to the last <Gold> <Find> or
<Gold> <Keypad 9> will be used.
<Gold> <Left Arrow>
Moves continuously backward through the buffer
until the beginning of the buffer is reached or a
command is typed.
<Gold> <Right Arrow>
Moves continuously forward through the buffer
until the end of buffer is reached or a command
is typed.
2.10 Text Insertion
All insertion happens at the the cursor position. To
insert at a different position from the one you see the cursor
flashing at you have to move the cursor there first. See the
section on cursor movement for directions on how to move around.
The regular typewriter keys will cause the character on
the key to be inserted in the file you are editing. If your
keyboard has been programmed for a national character set Sedt
will use that programming.
A number of other keys will also cause text insertion:
<Tab> The cursor will be advanced to the next tab stop
on the ruler by inserting spaces or ASCII HT
characters. If the mode is set to Tabs:Expanded
only space characters will be inserted.
Otherwise a mixture of HT and space characters
will be used.
If an indentation point has been set and the
cursor is to the left of it it will space over
intermediate tab stops to the indentation point.
<Return>
A new line will be started at the cursor position
and the cursor will be advanced according to the
following rules:
If an A is shown on the ruler line the cursor
will be advanced to the column of the first
printable character on the line just terminated.
If an L is shown on the ruler line the cursor
will be advanced to the column shown by the L.
The cursor is advanced by inserting space and
ASCII HT characters. If the mode is set to
Tabs:Expanded only space characters will be
inserted.
<Escape>
<F11>
Inserts an ASCII ESC character.
<Gold> <Control> I
Prompts for a key and will insert the definition
of the key into the file at the current cursor
position. The key can be a function key, control
character, gold function key, gold control key or
gold character from the typewriter keyboard.
<Gold> G
Prompts for a file name and includes the contents
of the file at the cursor position.
<Gold> P
Inserts an ASCII FF character, which starts a new
page.
<Insert Here>
<Gold> <Keypad 6>
Inserts the contents of the paste buffer at the
current cursor position.
<Gold> <Keypad 0>
Inserts a new line at the cursor position and
does not advance the cursor.
<Gold> <Keypad 3>
Allows insertion of an arbitrary ASCII character.
Type <Gold> followed by the decimal value of the
character (typed on the regular typewriter
keyboard) followed by <Gold> <Keypad 3>. You
cannot enter a newline character (ASCII LF) using
this method.
<Gold> <Keypad ,>
Inserts the last deleted character at the cursor
position.
<Gold> <Keypad ->
Inserts the last deleted word at the cursor
position.
<Gold> <PF4>
Inserts the last deleted line at the cursor
position.
2.11 Selecting Text Ranges
Several commands operate with a selected region. The
following commands are used to select an arbitrary region of
text. Whenever a region of text is selected it will be displayed
in reverse video on the screen.
<Select>
<Keypad .>
Anchors the cursor position as one end of a
selected region. When the cursor is moved in
front of the select point the select region will
be all characters from the select point up to the
character behind the cursor. When the cursor is
moved behind the select point the region will be
all characters from the cursor up to the
character behind the select point.
<Gold> <Select>
<Gold> <Keypad .>
Cancels the select region.
2.12 Deleting Text
<Linefeed>
<Control> J
<F13>
Deletes from the character behind the cursor
position back to the previous start of a word.
The deleted text can be retrieved with the <Gold>
<Keypad -> command.
<Control> U
Deletes from the character behind the cursor
position back to the beginning of the line. The
deleted text can be retrieved with the <Gold>
<PF4> command.
<Delete>
<Backspace>
Deletes the character behind the cursor position.
The deleted character can be retrieved with the
<Gold> <Keypad ,> command.
<Gold> Z
Clears the contents of the buffer. The previous
contents cannot be retrieved.
<F4>
Appends the contents of the selected text range
to the paste buffer. The selected text range is
not deleted from the buffer.
<Remove>
<Keypad 6>
Removes the selected text range from the buffer
and inserts it in the paste buffer.
<Keypad ,>
Deletes the character at the cursor position.
The character can be retrieved with the <Gold>
<Keypad ,> command.
<Keypad ->
Deletes from the cursor position up the the next
start of a word. The deleted text can be
retrieved with the <Gold> <Keypad -> command.
<PF4>
Deletes from the cursor position through the line
end. The deleted text can be retrieved with the
<Gold> <PF4> command.
<Gold> <Remove>
Copies from the selected text range into the
paste buffer without deleting from the buffer.
<Gold> <Keypad 2>
Deletes from the cursor position up to the end of
the line. The deleted text can be retrieved with
the <Gold> <PF4> command.
2.13 Substitution
<Keypad 9>
Searches in the current direction for an
occurrence of the last search string given and,
if the string is found, replaces it with the last
replace string given. The Search string is set
with the <Gold> <PF3> or <Gold> <Keypad 9>
commands. The replace string is set with the
<Gold> <Keypad 9> command.
<Gold> <Keypad 9>
Prompts for a search and a replace string and
then searches in the current direction for an
occurrence of the search string and , if it is
found, replaces it with the replace string. If
an empty response is given to any of the prompts
the previous value of the string will be used.
2.14 Windows and Buffers
Sedt allows you to edit up to 4 different files at the
same time. At any given moment you can choose between having one
or two of these displayed on the screen. The following commands
allow you to switch between the four files and change the way
they are displayed.
Each of the 4 files you can edit are held in a buffer.
The current buffer, which all commands operate on, is the one you
see on the screen when a single window is displayed, or the one
shown in the top window when two are displayed.
<Gold> <Up Arrow>
Scrolls the display so that the line with the
cursor is on the second line of the display.
This command has no effect if the operation would
place the first line of the file below the first
line of the display.
<Gold> <Down Arrow>
Scrolls the display so that the line with the
cursor is on the second last of the display.
This command has no effect if the operation would
place the first line of the file below the first
line of the display.
<Gold> D
Toggles between displaying one or two files on
the screen. When two files are displayed the
screen will be split horizontally with the two
files shown one above the other.
<Gold> E
Prompts for a file name to be loaded into the
current buffer. The original contents of the
buffer are discarded. You will, however, be
given a chance to save the original contents of
the buffer if it has been modified.
<Gold> F
<F10>
Saves the contents of the current buffer. All
other than ATARI GEM and Microsoft Windows
versions will terminate the edit session if no
unmodified buffers exist, or ask whether you
intend to terminate if there are unsaved changes.
<Gold> Q
<F8>
Terminates execution of Sedt without saving any
buffers. You will be asked to confirm that you
really intend to quit if any buffers have been
modified. On ATARI GEM and Microsoft Windows
versions only the current window will be closed
and Sedt will terminate when the last window is
closed. Advanced Guide
<Gold> S
Prompts for a file name and then saves the buffer
into the file. The file name associated with the
buffer will be changed to the new file.
<Gold> X
Switches to the previously selected buffer. If
no other buffer has been selected it will switch
to buffer 1.
<F6>
Saves the contents of the current buffer into the
file associated with it. The save is not done if
no modifications have been made.
<F17>
Selects buffer number 0.
<F18>
Selects buffer number 1.
<F19>
Selects buffer number 2.
<F20>
Selects buffer number 3.
2.15 Text Formatting
<Control> A
Sets the indentation level to the column number
that the cursor is at. Typing <Tab> when the
cursor is to the left of the indentation level
will insert space characters to bring the cursor
up to the indentation level.
<Control> D
Decreases the indentation level by one column.
<Control> E
Increases the indentation level by one column.
<Control> T
Adjusts all text within the select range by one
tab stop. <Control> T will move the select range
right if the direction flag is forward and left
if the direction flag is reverse. <Gold> -
<Control> T will always move a tab stop left.
<Gold> + <Control> T will always move a tab stop
right.
<Gold> C
Centers the line containing the cursor between
the left (L on the ruler line) and right (R or J
on the ruler line) margins.
<Gold> J
Reformats from the previous beginning of line to
the end of the current paragraph. Reformatting
requires that a right margin has been set on the
ruler line. An R will set a ragged right margin
and a J will set a justified right margin.
<Gold> _
Inserts a hyphen and a space at the cursor
position and reformats from the previous
beginning of line to the end of the current
paragraph. This command allows you the break a
word if the automatic reformatting looks bad.
<Gold> <Keypad 8>
Reformats from the cursor position to the end of
the current paragraph.
2.16 Programming Keys
The effect of a keyboard command is not fixed in Sedt.
You can change the functions of most keys in a variety of ways.
Permanently by editing the keyboard definition file or
temporarily during a session with commands that change the
keyboard programming.
<Control> K
Prompts for you to type the key you want to
program and for a command string that you want to
program the key with. Valid commands that you
can program the key with are documented in the
reference section of this manual.
<Gold> <Control> I
Prompts for you to type a keystroke and then
inserts the programming of the key into the
current buffer at the cursor position.
<Gold> <Control> L
Prompts for you to type the key that you want to
program and then loads the contents of the
current buffer into the key. Valid commands that
you can program the key with are documented in
the reference section of this manual.
<Gold> <F17>
Causes learning of keystrokes into ^B until
learning is completed by typing <Control> Z. The
keystrokes learned can be "replayed" by typing
^B.
<Gold> <F18>
Prompts for a keystroke and then stores
subsequent keystokes into that key until it is
typed again. To "replay" the keystrokes type the
key at any time after learning was terminated.
2.17 Changing Options
Sedt supports a variety of toggles and options that
change the behavior of the editor. Many can be set for a session
by providing command switches when you call Sedt or they can be
modified dynamically during the editing session.
<Gold> A
Toggles automatic screen shifting.
When automatic screen shifting is on the screen
will scroll horizontally to ensure that the
cursor is always visible within the margins on
your screen. The mode indicator "Screen Shift="
indicates how many characters to the right that
the screen is shifted. When screen shifting is
off the leftmost character on the screen always
corresponds to the leftmost character on each
line in the file.
<Gold> I
Toggles expansion of tabs.
Then tabs are expanded only space characters will
be used when indenting text in moving to a tab
stop on the ruler. When tabs are inserted Sedt
will attempt to use ASCII HT characters for these
operations, thus saving file space. The latter
condition may lead to undesired effects when you
delete and insert text containing ASCII HT
characters. The state of the tab insertion mode
is shown by the "Tabs:" mode indicator.
<Gold> L
Toggles block cut and paste.
When block cut and paste is in effect a cut
operation (<Remove> or <Keypad 6>) will remove a
rectangle of text bounded by the select point and
the cursor position. In line mode a cut
operation will remove all text in the select
region.
When block cut and paste is in effect the word
"Block" will appear on the mode line and only a
reverse video column will show the select region.
When line cut and paste is in effect "Line" will
be shown on the mode line and the entire select
region will be shown in reverse video.
<Gold> O
Toggles overstrike/insert mode.
In insert mode typed text, inserted text and
undeleted text will be inserted at the cursor
position and any existing text will be pushed to
the right of the inserted text. The delete
operation will remove the text and collapse text
around the region that was deleted. "Insert"
will also be displayed on the mode line.
In replace mode typed, inserted and undeleted
text will overwrite existing text in the buffer.
Delete operations will cause the deleted text to
be replaced by blank space. "Replace" will also
be shown on the mode line. This mode is useful
for editing tabular types of text.
<Gold> W
Toggles between 80 and 132 character displays.
This is only supported on systems and displays
that can toggle between these modes.
2.18 Miscellaneous Commands
<Control> P
Prompts for a file name and writes the contents
of the current buffer onto the file with page
breaks at every 60 lines.
<Control> W
Refreshes the entire display.
<Gold> <Return>
<Do>
Prompts for an operating system command and then
executes it in a subprocess. If no command is
entered the command parser will be executed.
This command is not supported on all operating
systems.
<Gold> H
<Help>
<PF2>
Displays a series of help screens on the
terminal.
<Gold> R
Enters ruler definition mode. See the chapter on
modifying the ruler for an explanation.
<F7>
<F9>
<Keypad Enter>
<Gold> <Resume>
Dead key. This is useful for terminating a
continuously scrolling operation started by
<Gold> <Right Arrow> or <Gold> <Left Arrow>.
<Gold> <F4>
Prompts for a file and loads the contents of the
file into the paste buffer.
<Gold> <Do>
<Gold> <Keypad 7>
Prompts for a sequence of internal Sedt commands
and then executes them. A description of
internal Sedt commands is contained in the
reference section of this manual.
<Gold> <Keypad 1>
Changes the case of alphabetic characters in a
range of text given by the following rule: The
select region if one is active, otherwise if the
last command was a search operation the string
that was found, otherwise the character at the
cursor position.
<Gold> <Keypad Enter>
Swaps the character at the cursor position and
the following character and advances the cursor
by one character.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
3 Using the MS-DOS version of Sedt
The MS-DOS version of Sedt follows the generic
description given in the previous two chapters, but adds support
for a mouse if a Microsoft mouse compatible driver is installed.
3.1 Support of the Microsoft mouse driver
If Sedt recognizes the presence of a mouse it
will display a block cursor within the window. The
cursor will move around the window if you move the mouse.
Clicking the left mouse button will move the text
cursor to the position you clicked at. Any active select
region is canceled. If the mouse is dragged with the
left mouse button held down the cursor will move with the
mouse and the region between the point where the cursor
was originally pressed and the current cursor will be
selected.
Clicking the right mouse button will select the
text between the mouse cursor and the text cursor.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
4 Using the Microsoft Windows version of Sedt
WSEDT.EXE is special version of Sedt running as a class A
application under Microsoft Windows. In addition to the
functionality described elsewhere in this manual it offers mouse
control, menus, sizable and movable windows and an interface to
the Windows clipboard.
Because of the multitasking environment Sedt cannot take
full control of the keyboard or even assume that the keyboard
state is known. Therefore Sedt does not support the Num Lock and
Scroll Lock keys as normal editing keys.
4.1 Window Control
When you run Sedt is displays a normal MS window
with a menu bar, a size box and a vertical scroll bar.
All of these controls work exactly as with any other
Windows application. When the window is resized you will
notice that Sedt adapts to the new windows size so that
horizontal shifting and vertical scrolling work exactly
the same.
The initial window will display buffer 0. As you
open other buffers, they will be displayed in new
windows. You can display the contents of several buffers
at a time. As with the stand alone version, you can have
four concurrently open windows. These are displayed in
independent MS-Windows windows that can be moved and
controlled independently.
4.2 Mouse Control
The mouse cursor is an I-bar text cursor when it
moves within the file display. Outside the file display
it changes into an arrow pointer.
Apart from the normal mouse controls of the
windows and menus, you can also use the mouse to position
the text cursor within the visible window and to select a
region of text.
To position the cursor, place the mouse pointer
at the character position you want the cursor at, and
click the left button. The cursor will move to the
selected position unless the position is further to the
right than the last character on the line, or past the
end of the buffer. If the selected position is further
to the right than the end of the line the cursor will be
placed over the last character on the line. If it is
past the end of the buffer you will get an error message.
If you select a point on the first or last line
of the buffer the window will scroll one line.
To select a region of text you can use the mouse
in two different ways. If you drag the cursor after
clicking it the region from the initially selected
cursor position to the point where you release the mouse
button will be the selected region. If you accidentally
select a region by dragging, you can cancel the select
region by moving the mouse cursor to the block cursor and
clicking the right mouse button. Alternately, a region
can be selected by moving the mouse cursor to the end of
the select region and clicking the right mouse button.
In either case the selected region will change to reverse
video.
4.3 Menu Control
The menu bar will display five titles: File,
Window, Edit, Ruler and Help. To select any of these
move the mouse cursor to the title and a drop down menu
will appear. To select an item move the mouse cursor to
the item and click the left mouse button. A drop down
menu will appear as long as you hold down the left mouse
button. To select a menu item drag the cursor till the
item you want is highlighted and release the mouse
button.
4.3.1 File
This menu is used to control the file being
edited in the window.
4.3.1.1 New
Clears the current window. If the window
contains an unsaved file a dialog box
will appear and you will be asked for
confirmation before the unsaved edits are
removed.
4.3.1.2 Open..
Displays a file selector dialog box.
The file you select in the box is loaded
into the current buffer.
4.3.1.2 Save
Saves the file in the current buffer onto
the file displayed after "File:" in the
top line of the window.
4.3.1.3 Save as..
Displays a file selector dialog box. The
contents of the buffer are saved onto the
file you select. The file name displayed
after "File:" in the top line of the
window is also changed to the name of the
file you selected.
4.3.1.4 Insert..
Displays a file selector dialog box. The
file selected is included in the buffer
at the current cursor position.
4.3.1.5 Quit
Closes the current window. If there are
unchanged buffers you will be asked for
confirmation before the session is
terminated. Sedt will terminate when the
last window is closed.
4.3.2 Window
The window menu allows you to switch between
buffers and to clear the contents of a window.
4.3.2.1 Untitled
Unused
<File name>
Makes the window containing the indicated
buffer the currently selected window.
The menu item shows the current state of
the window. Untitled is an open window
with no file associated with it. <File
name> is the name of the file being
edited, and Unused is a closed window.
4.3.2.2 Switch
Selects the window you were in when you
last selected a new window.
4.3.3 Edit
The edit menu allows you to control the select
region.
4.3.3.1 Clear
Clears the select region. This is useful
when you have accidentally activated a
select region by moving the mouse while
holding the button down.
4.3.3.2 Cut
Cuts the selected region and saves it in
the paste buffer.
4.3.3.3 Paste
Inserts the contents of the paste buffer
at the text cursor position.
4.3.4 Ruler
Loads a saved ruler.
4.3.4.1 Load <X>
Load saved ruler number <X>
4.3.5 Help
The help menu displays the interactive help menus
in the current window.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
5 Using the ATARI GEM version of Sedt
Under the ATARI GEM environment GSEDT.PRG offers the
functionality described elsewhere in this manual with the
addition of sizable and movable windows, mouse control, menu
access to some functions and access to desk accessories while
using Sedt. The only function is spawning of subprocesses.
5.1 Window Control
When you first enter Sedt it will display a
single window with a menu bar, a move bar, a scroll bar,
a full box and a size box. You can use any of these
controls to move or resize the window. You will notice
that every time the window has been resized Sedt will
ensure that the cursor is within the new window and that
no clipping takes place. Sedt will not allow any portion
of the window to be outside the visible portion of the
screen, and if you try, it will resize the window to
prevent this from happening.
The initial window will display buffer 0. As you
open other buffers, they will be displayed in new
windows that also are initialized to full screen size.
You can display the contents of several buffers by
resizing them and moving them to different screen areas.
5.2 Mouse Control
Normally the mouse cursor is not visible. You
can make it visible at any time by moving the mouse, and
it will remain visible until you execute the next
keyboard command.
Apart from the normal mouse controls of the ATARI
GEM windows and menus, you can also use the mouse to position the
text cursor within the visible window and to select a region of
text.
To position the cursor, place the mouse pointer
at the character position you want the cursor at, and
click the left button. The cursor will move to the
selected position unless the position is further to the
right than the last character on the line, or past the
end of the buffer. If the selected position is further
to the right than the end of the line the cursor will be
placed over the last character on the line. If it is
past the end of the buffer you will get an error message.
If you select a point on the first or last line
of the buffer the window will scroll one line.
To select a region of text move the mouse cursor
to the place where you want the text cursor to be after
the selection then push the left button on the mouse and,
while holding the button down, drag the mouse cursor to
the end of the region you want to select and release the
button.
You can clear the select region by clicking the
cursor on the select point.
5.3 Menu Control
The menu bar will display five titles: Desk,
File, Window, Select and Help. To select any of these
move the mouse cursor to the title and a drop down menu
will appear. To select an item move the mouse cursor to
the item and click the left mouse button.
5.3.1 Desk
This is the normal desk accessory menu with a
selection at the top titled "About Sedt".
5.3.1.1 About Sedt
Displays in a dialog box the version of
Sedt you are using.
5.3.2 File
Allows you to control the file shown in the
currently selected window.
5.3.2.1 Load..
Displays a file selector dialog box. The
file you select in the box is loaded into
the current buffer.
5.3.2.2 Save
Saves the file in the current buffer onto
the file displayed after "File:" in the
top line of the window.
5.3.2.3 Save as..
Displays a file selector dialog box. The
contents of the buffer are saved onto the
file you select. The file name displayed
after "File:" in the top line of the
window is also changed to the name of the
file you selected.
5.3.2.4 Insert..
Displays a file selector dialog box. The
file selected is included in the buffer
at the current cursor position.
5.3.2.5 Quit
Closes the current window. If there are
unchanged buffers you will be asked for
confirmation before the session is
terminated. Sedt will terminate when the
last window is closed.
5.3.3 Window
The window menu allows you to switch between
buffers and to clear the contents of a window.
5.3.3.1 Untitled
Unused
<File name>
Makes the window containing the indicated
buffer the currently selected window.
The menu item shows the current state of
the window. Untitled is an open window
with no file associated with it. <File
name> is the name of the file being
edited, and Unused is a closed window.
5.3.3.2 Switch
Selects the window you were in when you
last selected a new window.
5.3.3.3 Clear
Erases the contents of a window. If the
window contains unsaved changes you will
be asked whether you want to save the
changes before clearing the window.
5.3.4 Select
The select menu allows you to control the select
region.
5.3.4.1 Clear
Clears the select region. This is useful
when you have accidentally activated a
select region by moving the mouse while
holding the button down.
5.3.4.2 Cut
Cuts the selected region and saves it in
the paste buffer.
5.3.4.3 Paste
Inserts the contents of the paste buffer
at the text cursor position.
5.3.5 Ruler
Loads a saved ruler.
5.3.5.1 Load <X>
Load saved ruler number <X>
5.3.6 Help
The help menu displays the interactive help menus
in the current window.
5.3.6.1 Show
Show the interactive help menus in the
currently active window.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Sedt hints and tricks
6.1 Using Sedt for programming
A number of features in Sedt are designed to make
programming easier. This section describes these
features and how best to take advantage of them.
Autoindentation
By setting the ruler for automatic indentation
(type A anywhere on the ruler when in ruler
definition mode) Sedt is set up to indent
automatically to the level of the line you just
terminated after you type a <Return>. This
facility makes it easy to write programs in a
structured fashion with the indentation level
proportional to the level of nesting.
Matching bracketing characters
When programming, especially in C and LISP,
nesting is often hard to get right. Sedt will
locate a matching bracket (', ", <, >, [, ], {,
}, (, or )) if you position the cursor over the
character and type <Gold> <F19>. This facility
can also be used to move over sections of the
program.
Compiling from within Sedt
By defining a key to save the current file and
spawn a compiler you can compile a program
without leaving Sedt. If the compiler generates
a listing of error messages, you can define the
key to also load the listing in another buffer.
Defining templates
By using the lean key feature, you can define a
series of keys in such a way that they insert
templates for key language constructs.
6.2 Using Sedt for text and documents
Formatting
Use word wrap and right margin, either ragged or
justified to format paragraphs as you type. If
you make changes to an already formatted
paragraph, reformat the paragraph with <Gold> J.
It is a good idea to have multiple stored rulers
for different levels of indentation.
Post processing
Sedt is not a word processor and does not support
many features such as bolding and underlining.
There are, however, a number of post processors
that together with Sedt will provide a more than
acceptable word processing environment. Define a
key to save the file, post process it and then
print the final output.
Spelling checkers
Sedt works very well with resident spelling
checkers such as Turbo Lightning on PC/DOS and
Thunder on the ATARI ST. With a spelling checker
and thesaurus, you have a superb environment for
producing documents.
6.3 Repetitive tasks
A number of tricks can be used to facilitate
tasks that require repetition of a task many times. The
techniques are based on the ability to dynamically change
key definitions. Usually a combination of the techniques
described lead to the optimal effort reduction.
Using learned key sequences
The standard technique for reexecuting a key
sequence is to type <Gold> <F17> at the start of
the sequence and terminate the sequence with ^B.
The sequence can then be replayed once by typing
^B and many times by typing <Gold> <Number>
^B. <Number> is the number of times you want to
repeat the sequence and must be typed on the
regular typewriter keyboard.
More advanced use of learned key sequences
You can learn keystrokes into other keys than ^B
by starting the process by typing <Gold> <F18>
and then typing the key you want to learn into
when prompted. To exit learning mode type the
key you are learning into. The learned keystroke
sequence can be replayed by typing the same key
again.
Redefining complex keystroke sequences
A very simple technique is to redefine a command
that is tied to a complex key sequence to a
single keystroke. You can very easily redefine a
gold key sequence to a single keystroke by typing
^K, then the single key you will tie the command
to, <Return>, the old keystroke sequence, and
finally <Return>.
Using commands not tied to keys by default
The default key definitions only use a subset of
Sedt's capabilities. You can often simplify
tasks by taking advantage of the more extensive
capabilities of the basic command set.
Turning screen updates off
When a repetitive sequence generates extensive
screen updates it can be simplified by taking
advantage of the ability to turn screen updates
off.
6.4 Creating Menus
Often, you would like to taylor Sedt to more complex
editing environments. The command structure offers many
opportunities to do this. One way, which is not obvious,
is described here.
If you would like to take an action determined by a
choice by the user, you can do so by tying a command
sequence like the following to a key:
^E(:FX|%e?"Enter document type L)etter, P)rogram, M)emo :"tpe.sed|)(:OM"Invalid menu selection").
When the key is pressed the commands in a file stored in
Sedt's library area will be executed. If L is typed the
file Ltpe.sed is selected. P and M will execute Ptpe.sed
and Mtpe.sed.
6.5 Using different initialization files for different file types
You can make Sedt initialize itself automatically for
different file types by creating a SEDTCOM.TXT file with
^E(:FX\%E%T.INI\)(:OM"No initialization file").
For any file type you edit Sedt will look for a file with
the name <type>.INI in Sedt's library area. If none is
found, a message will be issued.
6.6 Using linked files under UNIX
If you use linked files under UNIX you will find that the
links get broken if BACKUPFILE=ON, which is the default.
This is caused by Sedt using file links to create backup
files. You can prevent this problem by putting
BACKUPFILE=OFF in SEDT.CNF. Unfortunately, you will not
have the added security of backup files, but you will be
able to edit linked files without breaking the links.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
7 Customizing Keyboards
Keyboard commands are defined by two files. The keyboard
map file defines how keyboard input is mapped into a set of
predefined functions. The predefined functions are defined in a
function definition file. Both of these files are in a binary
format and must be created with a utility program called MAPKEY.
The keyboard map files are unique for every keyboard,
wheras there is only one function definition file for each
editing style (EDT or WPS).
To customize Sedt for a new keyboard you can normally
leave the function definition file and the MAPS section of the
key definition file unchanged. What remains is to change the
KEYS and COMBINATIONS sections in the key mapping file. Take
some time to compare different key mapping files. This will give
you and idea of the work to be done. You will be surprised at
how similar they are.
7.1 Function definition file
Before building a keyboard map file you need to build a
function definition file, or print the contents of the one you
want to map the keyboard to. The Sedt distribution contains
FUNDEF.INP, which is the ASCII file used to create the EDT style
function definition file FUNDEF.EDT.
The format of this file is as follows:
Comment lines have a ; as the very first
character of the line.
Function definitions are two lines with NO
comments allowed between the two.
The first line has the format:
<No> <Definition>
Where <No> is the number that you have assigned
to the function being defined, and <Definition> is the
function definition. The contents of a function
definition is described in the next section of this
manual.
The second line is the help text assigned to the
function and is free format text.
7.2 Keyboard map file
To create a keyboard map file you first need to know the
characters that each key sends. This is done with MAPKEY using
the command
MAPKEY CHAR
and
MAPKEY SCAN
Only use MAPKEY SCAN if MAPKEY CHAR does not print a
value when the key is pressed, or if the values printed are
ambiguous.
To exit from MAPKEY type an Escape character under DOS,
OS/2, or ATARI ST and a control Z on all other systems.
You may find that some keys that you want to use
differently send identical codes, and other keys transmit no
codes to the application. Under DOS and OS/2 you have the
ability to bypass the keyboard firmware. The codes transmitted
to the firmware can be explored with MAPKEY typing
MAPKEY SCAN
You also exit from this mode by typing Escape.
MAPKEY is not supported under Windows. To get access to
the codes, include a line with DEBUG=ON in SEDT.CNF and run the
Windows version of Sedt. Whenever a key is pressed the scan and
windows code for the key will be inserted in a file named DUMP in
the directory you run WSEDT from.
Once you know the codes transmitted by all keys you are
ready to start building the ASCII file that MAPKEY uses to build
the keyboard map file.
The start of the keyboard file contains optional setup
and reset strings for the system or terminal.
The setup string for the terminal is defined by a line
containing the word INITIALIZE followed by a line
containing the initialization string.
The reset string for the terminal is defined by a line
containingthe word RESET followed by a line
containing the reset string.
The rest of input file has four optional sections:
1: Codes that the firmware needs to be bypassed
with.
2: Assignment of single keystroke codes to key
numbers.
3: Assignment of multiple keystroke sequences to
key numbers.
4: Mapping of keystrokes to function numbers.
Section 1 contains a the keyword SPECIAL followed by a
single line for each code that the firmware needs
to be bypassed for in the firmat:
S<Scancode> <Character>
E<Scancode> <Character>
or
W<Windows code> <Character>
<Scancode> is the scancode value that MAPKEY
printed and <Character> is the ASCII character
that you have decided to assign to the key.
(ASCII character values are normally assigned by
the firmware). E is used where MAPKEY informed
you that the scancode is extended and S is used
for normal scancodes.
For OS/2 E<Scancode> <Character> has a special
meaning: Special handling by OS/2 of the
scancode/character combination will be disabled.
This makes it possible to treat ^C among other
characters as normal input to Sedt.
<Windows code> is a keycode assigned by Microsoft
Windows. When referring to the key later in the
key definition file use S<Windows code>. These
codes are only partially documented in the
Windows developer's kit. The following is the
best listing of Windows keycodes that I can
supply.
Backspace 8
Tab 9
Return 13
Escape 27
Space 32
Page Up 33
Page Dn 34
End 35
Home 36
Left Arrow 37
Up Arrow 38
Right Arrow 39
Down Arrow 40
Select 41
Print Screen 42
Insert 45
Delete 46
Keypad 0 96
Keypad 1 97
Keypad 2 98
Keypad 3 99
Keypad 4 100
Keypad 5 101
Keypad 6 102
Keypad 7 103
Keypad 8 104
Keypad 9 105
Keypad * 106
Keypad + 107
Keypad , 108
Keypad - 109
Keypad . 110
Keypad / 111
F1 112
F2 113
F3 114
F4 115
F5 116
F6 117
F7 118
F8 119
F9 120
F10 121
F11 122
F12 123
F13 124
F14 125
F15 126
F16 127
You should only enter values into this section if
MAPKEY CHAR either doesn't return any value for a
key, or if the keystroke generates an ambiguous
code. Failure to do so will result in problems
accessing TSR programs from DOS and also create
unnecessary overhead.
Section 2 consists of a line containing the text KEYS
followed by a line for each key number assignment
you want to make.
Each line has the format:
S<Scancode> <Character> <Value>
E<Scancode> <Character> <Value>
A<Character> <Value>
The S format is used for normal scancodes, E for
enhanced scancodes, and A where you want to
assign a character to a key value regardless the
scancode.
Where <Scancode> and <Character> are values given
to you by MAPKEY or assigned in section 1 of this
file, and <Value> is the key value you have
assigned to the key. Sedt uses some key values
internally, and you should use the following
meanings for the values given in the following
table:
1 <F1>
2 <F2>
3 <F3>
4 <F4>
5 <F5>
6 <F6>
7 <F7>
8 <F8>
9 <F9>
10 <F10>
11 <F11>
12 <F12>
13 <F13>
14 <F14>
15 <F15>
16 <F16>
17 <F17>
18 <F18>
19 <F19>
20 <F20>
21 <Find>
22 <Insert Here>
23 <Remove>
24 <Select>
25 <Prev Screen>
26 <Next Screen>
27 <Up Arrow>
28 <Left Arrow>
29 <Down Arrow>
30 <Right Arrow>
31 <Keypad 0>
32 <Keypad 1>
33 <Keypad 2>
34 <Keypad 3>
35 <Keypad 4>
36 <Keypad 5>
37 <Keypad 6>
38 <Keypad 7>
39 <Keypad 8>
40 <Keypad 9>
41 <Keypad ,>
42 <Keypad ->
43 <Keypad .>
44 <Keypad PF1>
45 <Keypad PF2>
46 <Keypad PF3>
47 <Keypad PF4>
48 <Keypad Enter>
49 <Backspace>
50 <Return>
Any other key numbers are freely assignable and
carry no special meaning.
Section 3 consists of a line containing the text
COMBINATIONS followed by a number of lines of the
following formats
<Level> E<Scancode> <Character>
<Level> S<Scancode> <Character>
<Level> A<Character>
<Level> K<Key>
<Level> E<Scancode> <Character> <Key #> <Help text>
<Level> S<Scancode> <Character> <Key #> <Help text>
<Level> A<Character> <Key #> <Help text>
<Level> K<Key> <Key #> <Help text>
<Level> designates the number of the keystroke in
the sequence.
E<Scancode> <Character> is an extended
scancode/character combination.
S<Scancode> <Character> is a normal
scancode/character combination.
A<Character> is any ASCII character.
K<Key> is a key number assigned in the previous
section.
For the final character in a sequence <Key #> is
the key nymber you assign to the sequence and
<Help Text> is the help text to be used in
interactive help.
To describe a sequence consisting of ^A^B which
you want to assign as key number 99 and give the
help text ^A^B to include:
1 A1
2 A2 99 ^A^B
To describe two sequences consisting of ^A^B^C
and ^A^B^D and assign them to key bumbers 99 and
100 include:
1 A1
2 A2
3 A3 99 ^A^B^C
4 A4 100 ^A^B^D
Two sequences consisting of ^A^B^C^D and ^A^B^D^E
would be described as:
1 A1
2 A2
3 A3
4 A4 99 ^A^B^C^D
3 A4
4 A5 100 ^A^B^D^E
As you can see, you are building a tree structure
where common root sequences are only included
once. You must follow this scheme.
Section 4 consists of a line containing the text MAPS and
a number of lines in the following formats:
<Number> S<Scancode> <Character> <Function> <Help Text>
<Number> E<Scancode> <Character> <Function> <Help Text>
<Number> A<Character> <Function> <Help Text>
<Number> K<Key> <Function> <Help Text>
<Number> G S<Scancode> <Character> <Function> <Help Text>
<Number> G E<Scancode> <Character> <Function> <Help Text>
<Number> G A<Character> <Function> <Help Text>
<Number> G K<Key> <Function> <Help Text>
<Number> is the index into the table. This index
is used by several commands that reference keys.
It is suggested that you number all entries
sequentially starting with 0.
G just after <Number> means that this mapping
value applies when the <Gold> key was typed
immediatly before the key generating the entry.
<Scancode>, <Character>, and <Key> define the
key.
<Function> specifies the function the key is to
assigned to. A function number of 0 or the
letter G means that the key being defined is a
<Gold> key.
<Help Text> is the help text assigned to the key
or key sequence.
Sedt searches all of these tables sequentially
from the start to the finish. You must take care to
ensure that an A<Character> entry is not placed before a
S<Scancode> <Character> or E<Scancode> <Character> with
the same character value. You must also place a K<Key>
entry before any entry that might produce a match for the
same character. It is helpful to start with all K
entries, followed by all E and S entries, finally
followed by all A entries.
7.3 MAPKEY Program
The MAPKEY program is used to maintain keyboard map and
function definition files.
MAPKEY Commands:
MAPKEY SCAN
Prints scancodes for keys pressed. This command
bypasses the firmware and prints scancodes for
all keys, even those that normally are trapped by
the firmware. To terminate MAPKEY type Esc.
MAPKEY CHAR
Prints scancode and character values for keys
pressed. This command shows the keypresses after
they are processed by the firmware. To terminate
MAPKEY type Esc.
MAPKEY COMPILE KEYS <ASCII file> <Binary file>
Comverts an ASCII keyboard map file into the
binary format required by Sedt.
MAPKEY DUMP KEYS <Binary file> <ASCII file>
Converts a binary keyboard map file into an
editable ASCII format suitable for input to the
COMPILE KEYS command.
MAPKEY TEST <ASCII file>
Reads a file suitable for input to the COMPILE
KEYS command and displays how Sedt will interpret
keystrokes. To terminate MAPKEY type Esc.
MAPKEY COMPILE FUNCTIONS <ASCII file> <Binary file>
Converts an ASCII function definition file into
the binary format expected by Sedt.
MAPKEY DUMP FUNCTIONS <Binary file> <ASCII file>
Converts a function definition file in the binary
format required by Sedt into an editable ASCII
format suitable for input to the COMPILE
FUNCTIONS command.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
8 Help File
The help file is designed to create a tree structured
menu of help screens. The first few characters of every line are
used to drive the menu structure.
Space Lines starting with space are displayed on the
screen and constitute the normal output, either
help text or menu screens.
Character Lines starting with any other character defines
the menu structure. The first character is the
first level selection. Lines starting with just
this character come just before the first line of
output for this level. Lines with more than one
character define inner menus.
Inside the help text a number of tokens are allowed.
Each token starts with a % character. A special token, %%,
leaves a single % character in the help text.
%A<Number> Inserts the help text for all keys that map to
the given function number. Multiple help strings
are separated by commas and spaces.
%F<Number> Inserts the help text for the first key found
that points to the function number given.
%T<Number> Inserts the help text for the given function
number.
%C<Number> Advances the cursor to the given column.
%K Inserts the contents of the keyboard map file.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Reference Manual
9.1 Interpreting Keyboard Input
Whenever a control character, a function key or a key
preceded by <Gold> is typed Sedt will translate the keystroke
into a series of internal commands. The mapping of keys to
internal commands is defined by a key definition file and can be
modified during the editing session.
This chapter describes the syntax for internal commands
and describes the sequence of events between typing a key and the
effect of the command being displayed on the terminal.
Sedt understands a large variety of commands and command
combinations that have not been tied to any keys. To take full
advantage of Sedt's power you will need to understand the
internal command structure.
9.2 Translating Keystrokes
When a key is typed the commands tied to the key will be
written to an internal buffer. If the command string is not
terminated by a period the command sequence will be stored and a
new key will be read. This continues until a key with a
definition terminated by a period is typed. This facilitates the
use of multiple keystrokes to input a command sequence.
The next step is to scan the command string for tokens
and prompts. Tokens are replaced by the value of the token at
the time of scanning and prompts will be displayed and then
replaced by the response to the prompts. The recognized tokens
and prompt strings are:
? will cause SEDT to expect the following syntax:
?<delimiter><string><delimiter>
where <delimiter> is any ASCII character. SEDT will
display <string> on the bottom line of the display and
then accept input from the keyboard.
! will cause SEDT to expect the following syntax:
!<delimiter><string><delimiter>
where <delimiter> is any ASCII character. SEDT will
display <string> on the bottom line of the display and
wait for a key or <Gold> followed by a key to be struck.
A unique ASCII representation for the key will be
inserted in the command string instead of the above
construct.
% must be followed by one of the following characters:
%, #, B, C, D, E, F, H, L, N, P, T, or W.
%% is replaced by a single %.
%#<Letter> is replaced by the current value of
the counters controlled by :CNS, :CNI and :CNP.
<Letter> must be in the range A to Z.
%A is only supported on VMS and MS-DOS, OS/2,
ATARI ST, and UNIX. On VMS it will be replaced
by the string Sedt$Dir:, and on MS-DOS, OS/2,
ATARI ST, and UNIX by the value of the SEDTP
environment variable.
%B is only supported on VMS and inserts the next
unseen broadcast message.
%C is replaced by the current character position.
%D is replaced by the device and directory
specification of the output file of the current
buffer.
%E is only supported on VMS and MS-DOS, OS/2,
ATARI ST, and UNIX. On VMS it will be replaced
by the string Sedt$Library:, and on MS-DOS, OS/2,
ATARI ST, and UNIX by the value of the SEDT
environment variable.
%F is replaced by the name of the output file of
the current buffer being edited.
%HNNN is replaced by the help text for the
function pointed to by MAP entry NNN. The
command sequence :OM/!"Key: "/. will print the
help text for the key pressed in response to the
prompt.
%L is replaced by the current line number.
%N is replaced by the name of the output file of
the current buffer being edited, up to, but not
including, the first period.
%P is replaced by the contents of the paste
buffer
%T is replaced by the file type, including the
leading period, of the output file of the current
buffer.
%W is replaced by the current cursor column.
9.3 Command Syntax
Once the command string has been preprocessed it is
interpreted as a series of commands. This chapter describes all
SEDT commands. For some examples of how keys are programmed
study the keyboard definition file supplied with Sedt.
If an error occurs during execution of a command string
all commands following the one that the error occurred in will be
skipped. Also, if the command was in a series of commands
enclosed in parentheses preceded by a count the parentheses are
exited and further iterations skipped.
SEDT commands may be grouped by placing them in
parentheses. A count in front of a group of commands in
parentheses causes the group to be repeated the number of times
given in the count.
It is also possible to execute commands conditionally.
^C(<Commands>) causes <Commands> to be executed only if
the current buffer contains unsaved changes.
^C(<Commands1>|<Commands2>) causes <Commands1> to be
executed if the buffer contains unsaved changes and
<Commands2> to executed if the buffer is unchanged.
^E(<Commands1>)(<Commands2>) causes <Commands1> to be
executed. If any error occurs during the execution the
rest of <Commands1> will be skipped and <Commands2> will
be executed. <Commands2> string is ignored if no error
occurs.
^E(<Commands1>)(<Commands2>|<Commands3>) will execute
<Commands1>. If an error occurs the rest of <Commands1>
will be skipped and then <Commands2> will be executed,
otherwise <Commands3> is executed after completion of
<Commands1>.
^S(<Commands>) causes <Commands> to be executed only if
there is a select region active.
^S(<Commands1>|<Commands2>) causes <Commands1> to be
executed if a select region is active. If no select
region is active <Commands2> will be executed>.
To save a flag and have it restored after a command
sequence you bracket the command sequence and precede it with one
of the following commands:
^TB(<commands>) Saves the block/line mode flag and
restores it after <commands> have been executed.
^TD(<commands>) Saves the direction flag and restores it
after <commands> have been executed.
^TF(<commands>) Saves the cursor behavior toggle and
restores it after <commands> have been executed.
^TI(<commands>) Saves the replace/insert mode flag and
restores it after <commands> have been executed.
^TK(<commands>) Saves the the typewriter key command
execution flag and restores it after <commands>
have been executed.
^TT(<commands>) Saves the the tab insert/expand flag and
restores it after <commands> have been executed.
^TU(<commands>) Saves the the case sensitivity flag and
restores it after <commands> have been executed.
^TX(<commands>) Saves the the state of inserting
function definitions in prompts and restores it
after <commands> have been executed.
The following construct will execute commands
conditionally depending on the value of a toggle:
^IB(<commands>) Executes <commands> if cut operates in
line mode.
^IB(<commands1>|<commands2>) Executes <commands1> if cut
operates in line mode and <commands2> if cut
operates in block mode.
^ID(<commands>) Executes <commands> if the default
direction is forward.
^ID(<commands1>|<commands2>) Executes <commands1> if the
default direction is forward and <commands2> if
the default direction is reverse.
^IF(<commands>) Executes <commands> if the cursor
is alowed to move freely.
^IF(<commands1>|<commands2>) Executes <commands1> if the
cursor is allowed to move freely and <commands2>
if it is restricted to the length of lines in the
file.
^II(<commands>) Executes <commands> if characters are
inserted when typed.
^II(<commands1>|<commands2>) Executes <commands1> if
typed characters are inserted and <commands2> if
typed characters replace existing text.
^IK(<commands>) Executes <commands> if typed typewriter
key command execution is done.
^IK(<commands1>|<commands2>) Executes <commands1> if
typewriter key commands are executed and
<commands2> if they are not executed.
^IT(<commands>) Executes <commands> if typed tab
characters are expanded to spaces.
^IT(<commands1>|<commands2>) Executes <commands1> if
typed tab characters are expanded to spaces and
<commands2> if types tab characters are inserted.
^IU(<commands>) Executes <commands> if searches are case
insensitive.
^IU(<commands1>|<commands2>) Executes <commands1> if
searches are case insensitive and <commands2> if
searches are case sensitive.
^IX(<commands>) Executes <commands> if function
definitions are inserted in responses to prompts.
^IX(<commands1>|<commands2>) Executes <commands1> if
functio definitions are inserted in responses to
prompts and <commands2> if they are not.
SEDT commands are alphanumeric strings preceded by either
the symbol @ or :. Commands preceded by @ define a cursor
position and normally move the cursor to the position the command
defines. Commands preceded by : are action commands that
perform a change on the file being edited or change the editing
environment. Some action commands must be followed by a position
command that defines the range of text that the command acts on.
All commands can be preceded by a direction indicator
and/or a count. Not all commands use the direction indicator or
count. Those that do have the direction indicator or count in
the syntactical description.
The direction indicator is one of +, -, < or >. + and >
set the current direction to be forward, toward the last
character in the buffer. - and < set the current direction to be
backward, toward the first character in the buffer. If no
direction indicator is provided the command will use the default
direction, which initially is forward but can be changed with the
commands :A and :B.
Count is either a string of decimal digits optionally
followed by a dollar sign, $, and another string of decimal
digits, or a dollar sign, $, followed by a string of decimal
digits. If no dollar sign is in the count, or it starts with a
dollar sign, it is interpreted as the decimal value defined by
the string. If the count contains a dollar sign between two
decimal strings it is interpreted at the decimal value defined by
the first string. If no count is given the command will use a
count of one. This feature allows you to program a key to have a
default count by starting the definition with $<count>; If the
user supplies a count, it will override the one after $.
$10 returns the count 10
20$30 returns the count 20
40 returns the count 40
9.4 Commands
9.4.1.1 @AC
Absolute Character
Syntax: {<Count>}@AC
Semantics: Move the cursor to the absolute character
position <Count> in the current buffer.
9.4.1.2 @AL
Absolute Line
Syntax: {<Count>}@AL
Semantics: Move the cursor to the start of absolute line
<Count> in the current buffer.
9.4.1.3 @BB
Beginning of Buffer
Syntax: @BB
Semantics: Move the cursor to the first character in the
current buffer.
9.4.1.4 @BM
Matching Bracketing Character
Syntax: @BM
Semantics: Move the cursor to the matching character if the
character under the cursor is one of: ', ", <,
>, [, ], {, }, (, or ). ' and " are searched for
in the current direction, the others in the
direction the character implies.
9.4.1.5 @EB
End of Buffer
Syntax: @EB
Semantics: Move the cursor to the end of the current buffer.
The cursor position will be right after the last
character in the buffer.
9.4.1.6 @EL
End of Line
Syntax: <Count>@EL
Semantics: Move the cursor to the next end of line in the
current direction. The end of line is the
position to the immediate right of the last
character in the line. 0+@EL is a special case
which always stays at the end of the current
line.
9.4.1.7 @C
Character
Syntax: {+|-|<|>}{<Count>}@C
Semantics: Move the cursor <Count> characters in the current
direction. The end of line terminator is counted
as a character.
9.4.1.8 @F
Find
Syntax: {+|-|<|>}{<Count>}@F<Delimiter><String><Delimiter>
Semantics: If the <String> is not empty load it into an
internal buffer called the current search string.
The search for an occurrence of the current
search string in the current direction and place
the cursor over the first character in the
occurrence. The search is case insensitive.
9.4.1.9 @L
Line
Syntax: {+|-|<|>}{<Count>}@L
Semantics: Move the cursor to the <Count>'th start of line
in the current direction. The start of line is
the first character on the line, blank or
non-blank. 0-@L is a special case, which stays
at the beginning of the current line.
9.4.1.10 @M
Mark
Syntax: {<Count>}@M
Semantics: Move the cursor to the position in the file
where the cursor was when a :M command with the
same count was executed last. Valid counts are 1
through 10. An error message is displayed if an
invalid count is given or a :M command has not
previously been executed with the same count.
9.4.1.11 @N
Next
Syntax: {+|-|<|>}{<Count>}@N
Semantics: Move the cursor to the <Count>'th occurrence in
the current direction of the string last given in
an @F command. The cursor is placed over the
first character of the string. The search is
case insensitive.
9.4.1.12 @PAG
Page
Syntax: {+|-|<|>}{<Count>}@PAG
Semantics: Move the cursor to the first character after the
<Count>'th ASCII <FF> in the current direction.
If there are <Count>-1 ASCII <FF>'s in the
current direction the cursor will be placed at
the beginning of the file if the direction is
backwards or at the end of the file if the
direction is forward.
9.4.1.13 @PAR
Paragraph
Syntax: {+|-|<|>}{<Count>}@PAR
Semantics: Move the cursor to the <Count>'th start of
paragraph in the current direction. If there are
exactly <Count>-1 beginning of paragraphs the
cursor will be placed at the beginning of the
file if the direction is backward or at the end
of the file if the direction is forward. A
beginning of paragraph is a sequence of ASCII
space, tab and line feeds containing at least two
line feeds. The cursor is placed on the first
character after the string of spaces, tabs and
line feeds.
9.4.1.14 @SCR
Screen
Syntax: {+|-|<|>}{<Count>}@SCR
Semantics: Move <Count> times one less than the number of
lines in the current window lines in the current
direction.
9.4.1.15 @SEN
Sentence
Syntax: {+|-|<|>}{<Count>}@SEN
Semantics: Move to the <Count>'th start of sentence in the
current direction. A start of sentence is the
first character after a string of ASCII spaces,
tabs, line feeds, <.>, <;>, <?>, <!>, or <:>
containing exactly one line feed, <.>, <;>, <?>,
<!>, or <:> . If there are exactly <Count>-1
sentences the cursor will be placed at the start
of the file if the direction is backwards or at
the end of the file if the direction is forward.
9.4.1.16 @SR
Select Range
Syntax: @SR
Semantics: Move the cursor to the point the cursor was at
the last time a :SEL command was executed. An
error message is displayed if a :SEL command has
not been executed.
9.4.1.17 @V
Vertical
Syntax: {+|-|<|>}{<Count>}@V
Semantics: Move the cursor <Count> lines in the current
direction. SEDT attempts to position the cursor
at the same column as the cursor was at before a
series of @V commands were issued. The cursor is
never placed further to the right than one column
to the right of the last character on a line. If
the line contains ASCII tab characters or
characters that SEDT represents with
multi-character sequences it may not be able to
position at exactly the same column.
A series of these commands will attempt to keep
the cursor at the column it was at when the first
command was executed.
9.4.1.18 @W
Word
Syntax: {+|-|<|>}{<Count>}@W
Semantics: Move the cursor <Count> words in the current
direction. A word is either an alphanumeric
string containing underscores <_> or printable
ASCII characters or a single non-alphanumeric,
printable ASCII character. The cursor is
positioned over the first character in the word.
9.4.1.19 @XNM
Next Mark
Syntax: @XNM
Semantics: Move to the next marked position. The next mark
is the closest in the current direction. An
error is caused if there are no more marks in the
current direction.
9.4.1.20 @XSR
Select Range with no clear
Syntax: @XSR
Semantics: Exactly the same as @SR, but the select region is
not cleared.
9.4.2.1 :A
Advance
Syntax: :A
Semantics: Set the default direction for cursor-movement
commands to be forward toward the end of the
file.
The default direction is displayed on the mode
line of the display.
9.4.2.2 :B
Backward
Syntax: :B
Semantics: Set the default direction for cursor-movement
commands to be backward toward the start of the
file.
The default direction is displayed on the mode
line of the display.
9.4.2.3 :CB
Cursor at Bottom
Syntax: :CB
Semantics: Scrolls the current window to place the cursor
line at the next to last line in the window. Is
only available in full screen editing mode.
9.4.2.4 :CC
Change Case
Syntax: :CC<@ command>
Semantics: Switch all lower case characters to upper case
and all upper case characters to lower case from
the current cursor position to the position
defined by the @ command.
9.4.2.5 :CD
Change to Lower case
Syntax: :CD<@ command>
Semantics: Change all upper case characters to lower case
from the current cursor position to the position
defined by the @ command.
9.4.2.6 :CE
Change Case Edt Style
Syntax: <Count>:CE
Semantics: Change the case of alphabetic characters
according to the following rules:
If a select range is active change the case
within the select range. Otherwise, if the last
command was a search command change the case of
the string found by the search. Otherwise change
the case of <Count> characters from the cursor
position.
9.4.2.7 :CH
Insert ASCII Character
Syntax: <Count>:CH
Semantics: Insert an ASCII character of decimal value
<Count> at the cursor position.
9.4.2.8 :CK
Checkpoint buffer
Syntax: :CK
Semantics: Perform an autosave on the current buffer exactly
as if an automatic autosave had happened.
9.4.2.9 :CL
Center Line
Syntax: :CL
Semantics: Center the line containing the cursor between
the left and right margins (denoted by L and R or
J in the ruler line).
9.4.2.10 :CM
Cursor at Middle
Syntax: :CM
Semantics: Scrolls the current window to place the cursor
line on the middle line in the window. Is only
available in full screen editing mode.
9.4.2.11 :CNA
Add number to counter
Syntax: :CNA{#<Letter>}
Semantics: Add the contents of the buffer, starting at the
current cursor position as an integer up to the
first non-numeric character, to the value of the
counter. The value can be preceded by a + or -
character. If #<Letter> is included the value
will be taken from the variable <Letter>.
Omitting #<Letter> has the same effects as #A.
<Letter> must be in the range A to Z.
9.4.2.12 :CNG
Get counter from buffer
Syntax: :CNG{#<Letter>}
Semantics: Interpret the contents of the buffer, starting at
the current cursor position as an integer up to
the first non-numeric character and place the
value in the counter. The value can be preceeded
by a + or - character. If #<Letter> is included
the value will be taken from the variable
<Letter>. Omitting #<Letter> has the same
effects as #A. <Letter> must be in the range A
to Z.
9.4.2.13 :CNI
Increment or Decrement Counter
Syntax: {+|-}{<Count>}:CNI{#<Letter>}
Semantics: Increment or decrement the value of Sedt's
internal counter by <Count>. If #<Letter> is
included the value will be taken from the
variable <Letter>. Omitting #<Letter> has the
same effects as #A. <Letter> must be in the
range A to Z.
9.4.2.14 :CNP
Insert Value of Counter in Buffer
Syntax: :CNP{#<Letter>}
Semantics: Insert the decimal value of Sedt's internal
counter into the current buffer at the cursor
location. If #<Letter> is included the value
will be taken from the variable <Letter>.
Omitting #<Letter> has the same effects as #A.
<Letter> must be in the range A to Z.
9.4.2.15 :CNS
Set Value of Counter
Syntax: {+|-|}{<Count>}:CNS{#<Letter>}
Semantics: Set the value of Sedt's internal counter to
<Count>. If #<Letter> is included the value will
be taken from the variable <Letter>. Omitting
#<Letter> has the same effects as #A. <Letter>
must be in the range A to Z.
9.4.2.16 :CS
Save Buffer Context
Syntax: :CS
Semantics: Save the cursor position, all marks and the
current ruler in a file with the same file name
as the output file of the current buffer, but
with the extension .CTX. If the option
CONTEXT=SAVED is set these setting will be
restored when the file is opened for editing.
9.4.2.17 :CT
Cursor at Top
Syntax: :CT
Semantics: Scrolls the current window to place the cursor
line at the second line in the window. Is only
available in full screen editing mode.
9.4.2.18 :CU
Change to Upper Case
Syntax: :CU<@ command>
Semantics: Change all lower case characters to upper case
from the current cursor position to the position
defined by the @ command.
9.4.2.19 :CW
Change to Other Screen Window
Syntax: :CW
Senamtics: If the screen is in two window mode switch to the
other window on the screen, otherwise switch to
the previous buffer used.
9.4.2.20 :D
Delete
Syntax: :D<@ command>
Semantics: Delete all characters from the current position
to the position defined by the @ command and
place the deleted text in an internal buffer.
Separate buffers exist for different @ commands;
The relationship between @ commands and delete
buffers is:
@AC Unknown
@AL Unknown
@BB Unknown
@EB Unknown
@EL Line
@C Char
@F Find
@L Line
@M Unknown
@N Find
@PAG Pag
@PAR Par
@SEN Sen
@SR Paste
@V Unknown
@W Word
In insert mode the text will be removed
entirely and the text after the block removed
will immediately follow the text before the
block. In replace mode the block removed will be
replaced with space characters, preserving any
line terminators.
9.4.2.21 :EAP
Delete and Append
Syntax: :EAP<@ command>
Semantics: Delete all characters from the current position
to the position defined by the @ command and
appends the text to the contents of an internal
buffer. Separate buffers exist for different @
commands; The relationship between @ commands
and delete buffers is:
@AC Unknown
@AL Unknown
@BB Unknown
@EB Unknown
@EL Line
@C Char
@F Find
@L Line
@M Unknown
@N Find
@PAG Pag
@PAR Par
@SEN Sen
@SR Paste
@V Unknown
@W Word
In insert mode the text will be removed
entirely and the text after the block removed
will immediately follow the text before the
block. In replace mode the block removed will be
replaced with space characters, preserving any
line terminators.
9.4.2.22 :EF
Execute Function
Syntax: <Count>:EK
Semantics: Execute the function entry number <Count> in
FUNDEF.EDT exectly as if it were invoked from a
keystroke. FUNDEF.INP is an ASCII readable
version of FUNDEF.EDT.
9.4.2.23 :EK
Execute Key
Syntax: :EK<Key>
Semantics: Execute the definition of <Key> exactly as if it
had been typed on the keyboard. This includes
prompting for input and replacement of tokens.
<Key> is a code that identifies the class and
value of the key. It consists of a three digit
decimal number that defines the value. <Key> is
the index into the key mapping table described in
chapter 7 of this manual. Normally the value is
inserted into the command with the ! contruct.
9.4.2.24 :EL
Set error level
Syntax: <Count>:EL
Semantics: Set the error level to ring the bell at <count>
3: All errors
2: All errors except entity errors (default)
1: Only serious and fatal errors
0: never
9.4.2.25 :ERC
Clear Edit Region
Syntax: :ERC
Semantics: Cancels any edit region in effect.
9.4.2.26 :ERS
Set Edit Region
Syntax: :ERS<@ Command>
Semantics: Sets the edit region of the current buffer to go
from the current cursor position to the point
defined by <@ Command>.
As long as an edit region is in effect the cursor
cannot be moved outside it, thus limiting any
editing operations be happen within the region.
9.4.2.27 :FE
Edit File
Syntax: <Count>:FE<Delimiter><File Name><Delimiter>
Semantics: If the current buffer contains modified text the
user is asked whether the current contents should
be saved. If affirmative, the contents are saved
in the current output file, otherwise the
contents are discarded. The contents of the
buffer are then cleared. The <File Name>
argument is assigned to the input file name and
output file name of the current buffer and the
file is read into the buffer if it exists. The
cursor is placed at the first character of the
file.
If <Count> is zero the buffer will be read-only.
The file will not be automatically saved on a :X.
9.4.2.28 :FG
Get File
Syntax: :FG<Delimiter><File Name><Delimiter>
Semantics: Read the contents of the file into the current
buffer at the current cursor position. The
cursor is placed at the first character read in.
9.4.2.29 :FNL
Font Larger
Syntax: :FNL
Semantics: Select the next larger font that the system can
display.
9.4.2.30 :FNS
Font Smaller
Syntax: :FNS
Semantics: Select the next smaller font that the system can
display.
9.4.2.31 :FS
Save File
Syntax: :FS<Delimiter><File Name><Delimiter>
Semantics: Save the contents of the current buffer in the
file given in the <File Name> argument. If the
argument is empty, save in the output file of the
current buffer.
9.4.2.32 :FT
Fill
Syntax: :FT<@ command>
Semantics: Fill or justify all text between the current
cursor position and the point defined by the @
command. If the ruler contains an R to the right
of column 1 the text will be filled (jagged right
margin). If it contains a J to the right of
column 1 the text will be justified (straight
right margin). The left margin is defined by the
position of either A or W in the ruler. To
justify text SEDT packs the text as closely as
possible with single spaces between words except
after punctuation, where two spaces are used. It
then inserts extra spaces until the text lines up
with the right margin.
9.4.2.33 :FW
Write File
Syntax: :FW<Delimiter><File Name><Delimiter>
Semantics: Write the contents of the current buffer to the
file given in the <File Name> argument.
9.4.2.34 :FX
Execute File
Syntax: :FX<Delimiter><File Name><Delimiter>
Semantics: Read the file given in <File Name> and execute
each line as SEDT commands. ?, ! and %
expansion is done before execution of each line.
9.4.2.35 :GAP
Get and append
Syntax: :GAP<@ command>
Semantics: Append the text between the current cursor
position and the position defined by the @
command to the contents of an internal buffer.
The text is not deleted from the current buffer.
Several buffers are used for different @ commands
as follows:
@AC Unknown
@AL Unknown
@BB Unknown
@EB Unknown
@EL Line
@C Char
@F Find
@L Line
@M Unknown
@N Find
@PAG Pag
@PAR Par
@SEN Sen
@SR Paste
@V Unknown
@W Word
9.4.2.36 :GE
Get
Syntax: :GE<@ command>
Semantics: Place the text between the current cursor
position and the position defined by the @
command and place it in an internal buffer. The
text is not deleted from the current buffer.
Several buffers are used for different @ commands
as follows:
@AC Unknown
@AL Unknown
@BB Unknown
@EB Unknown
@EL Line
@C Char
@F Find
@L Line
@M Unknown
@N Find
@PAG Pag
@PAR Par
@SEN Sen
@SR Paste
@V Unknown
@W Word
9.4.2.37 :GR
Get ruler
Syntax: <Count>:GR
Semantics: Read the contents of the file RULER<Count>.TXT
and define the ruler from the contents of the
file. The file should have been written by a
save ruler command within the :RL command. On PC
versions the file should be located in SEDT's
master directory. Under VMS the file is should
be placed in the directory defined by the logical
variable SEDT$DIR.
9.4.2.38 :H
Help
Syntax: :H<Delimiter><Help file><Delimiter>
Semantics: Read the help and display it page by page on the
screen. If <Help file> is empty the help file
used is HELP.EDT or HELP.WPS depending on the
editing style.
9.4.2.39 :I
Insert
Syntax: :I<Delimiter><Any text><Delimiter>
Semantics: Insert the text in the current buffer. The
cursor is placed after the last inserted
character.
9.4.2.40 :KA
Define character key
Syntax: :KA<Char><Delimiter><Definition><Delimiter>
Semantics: Program the key generating character <Char> to
perform the commands given in <Definition>. If
<Definition> ends with a period the commands will
be executed when the key is pressed, otherwise
the execution is stored and executed when a key
ending with a period is struck.
<Char> is a three digit decimal number containing
the ASCII value of the character.
9.4.2.41 :KF
Define key function string
Syntax: :KF<Key><Delimiter><Definition><Delimiter>
Semantics: Program the key given in <Key> to perform the
commands given in <Definition>. If <Definition>
ends with a period the commands will be executed
when the key is pressed, otherwise the execution
is stored and executed when a key ending with a
period is struck.
<Key> is a code that identifies the class and
value of the key. It consists of a three digit
decimal number that defines the value. <Key> is
the index into the key mapping table described in
chapter 7 of this manual. Normally the value is
inserted into the command with the ! contruct.
If the key was originally defined at startup a
new entry will be created in the function
definition table to ensure that other keys
pointing to the same entry are not redefined.
9.4.2.42 :KGA
Define gold character key
Syntax: :KGA<Char><Delimiter><Definition><Delimiter>
Semantics: Program <Gold> and the key generating character
<Char> to perform the commands given in
<Definition>. If <Definition> ends with a period
the commands will be executed when the key is
pressed, otherwise the execution is stored and
executed when a key ending with a period is
struck.
<Char> is a three digit decimal number containing
the ASCII value of the character.
9.4.2.43 :KGK
Define gold function key
Syntax: :KGK<Key><Delimiter><Definition><Delimiter>
Semantics: Program <Gold> and the key assigned key number
<key> to perform the commands given in
<Definition>. If <Definition> ends with a period
the commands will be executed when the key is
pressed, otherwise the execution is stored and
executed when a key ending with a period is
struck.
<Key> is a three digit decimal number containing
the key.
9.4.2.44 :KK
Define function key
Syntax: :KK<Key><Delimiter><Definition><Delimiter>
Semantics: Program the key assigned key number <key> to
perform the commands given in <Definition>. If
<Definition> ends with a period the commands will
be executed when the key is pressed, otherwise
the execution is stored and executed when a key
ending with a period is struck.
<Key> is a three digit decimal number containing
the key.
9.4.2.45 :KN
Define key function number
Syntax: <Number>:KN<Key>
Semantics: Program the key given in <Key> to perform the
commands given in function number <Number>.
<Key> is a code that identifies the class and
value of the key. It consists of a three digit
decimal number that defines the value. <Key> is
the index into the key mapping table described in
chapter 7 of this manual. Normally the value is
inserted into the command with the ! contruct.
9.4.2.46 :LD
Decrease indentation
Syntax: {<Count>}:LD
Semantics: Reduce the indentation level by <Count>, which
defaults to 1. The :TAB command moves the cursor
to the indentation level if the cursor is placed
to the left of the indentation level. The
indentation level is shown with an I on the ruler
display.
9.4.2.47 :LI
Increase indentation
Syntax: {<Count>}:LI
Semantics: Increase the indentation level by <Count>, which
defaults to 1. The :TAB command moves the cursor
to the indentation level if the cursor is placed
to the left of the indentation level. The
indentation level is shown with an I on the ruler
display.
9.4.2.48 :LK
Load key definition
Syntax: :LK<Key><@ Command>
Semantics: Program the key given in <Key> to contain the
contents of the given entity. See :K for the
valid codes for <Key>.
9.4.2.49 :LNE
Execute keystrokes stored in key
Syntax: {<Count>}:LNE<Key>
Semantics: Interpret the programming of the key defined by
<Key> as a sequence of keystrokes. The key is
assumed to have been programmed through the use
of the :LNL command. See :K for a description of
valid codes for <Key>.
9.4.2.50 :LNL
Store keystrokes in key
Syntax: :LNL<Key>
Semantics: Store subsequent keystrokes in the programming of
the key defined by <Key> until that key is
struck. The keystrokes are executed as they are
stored. The commands :LNL and :LNE are used to
store the keystrokes required to perform a
repeated task and then perform the task without
having to repeat the keystroke sequence. See :K
for a description of valid codes for <Key>.
The stored keystrokes are encoded as a code for
the class of the key followed by either an ASCII
character or a 3 digit ASCII value for the key.
Codes are:
A ASCII character
G Gold ASCII character
F Function key
B Gold function key
For printable ASCII characters, except digits,
the code is followed by the character. Otherwise
the code is followed by a 3 digit function key
number, see :K for valid values, or an ASCII
character value.
9.4.2.51 :LNX
End learning
Syntax: :LNX
Semantics: Terminate keystroke learning if it is in effect.
This command has no effect if keystroke learning
is not in effect.
9.4.2.52 :LS
Set indentation level
Syntax: :LS
Semantics: Set the indentation level to the current cursor
position. The :TAB command moves the cursor to
the indentation level if the cursor is placed to
the left of the indentation level. The
indentation level is shown with an I on the ruler
display.
9.4.2.53 :M
Mark cursor position
Syntax: {-}{<Count>}:M
Semantics: Store the current cursor position in one of 9
marks. <Count>, which defaults to 1, specifies
the mark to save the position in. Valid marks
are 1 through 9. As text is inserted and deleted
from the buffer marks are adjusted to point to
the same logical positions in the file.
-<Count>:M clears mark number <Count>.
9.4.2.54 :NL
New line
Syntax: {<Count>}:NL
Semantics: Insert a new line at the cursor position and
advance the cursor to the beginning of the new
line.
If the ruler line has automatic margin control
set the margin is set to the leftmost character
position not containing spaces and tabs in the
line the cursor was on. If the old line had only
spaces or tabs the automatic margin is set to
column 1. Finally insert spaces and tabs to
advance the cursor to the automatic margin just
defined. The result will be that left margins
will line up at any column position.
If a non-automatic left margin is set spaces and
tabs are inserted to advance the cursor to the
left margin.
9.4.2.55 :NS
Substitute next
Syntax: {+|-|<|>}{<Count>}:NS
Semantics: Search in the current direction for the current
search string and if it is found replace the
occurrence with the current substitute string.
If the cursor is placed on the first character of
an occurrence the first substitution will be made
on that occurrence. The current search string is
set with @F. :SL or :SUB. The current
substitute string is set with :SUB. The search
is case insensitive.
9.4.2.56 :NWC
Change to next unsaved buffer
Syntax: {+|-}:NWC
Semantics: Switches to the next buffer that contains unsaved
changes. Buffers will be cycled through in the
default direction. You can use + or - to
override the default.
9.4.2.57 :NWG
Change to next buffer
Syntax: {+|-}:NWC
Semantics: Switches to the next buffer. Buffers will be
cycled through in the default direction. You can
use + or - to override the default.
9.4.2.58 :NWN
Change to next unused buffer
Syntax: {+|-}:NWN
Semantics: Switches to the next buffer that is unused.
Buffers will be cycled through in the default
direction. You can use + or - to override the
default.
9.4.2.59 :NWU
Change to next used buffer
Syntax: {+|-}:NWU
Semantics: Switches to the next buffer that is used.
Buffers will be cycled through in the default
direction. You can use + or - to override the
default.
9.4.2.60 :OE
Output error message
Syntax: <Count>:OE<Delimiter><Message><Delimiter>
Semantics: Output <Message> exactly as an internal error
message from SEDT and perform the normal error
skipping of commands. Count is used to set the
error level.
9.4.2.61 :OL
Open line
Syntax: {<Count>}:OL
Semantics: Insert <Count>, which defaults to 1, line feeds
after the current cursor position.
9.4.2.62 :OM
Output message
Syntax: :OM<Delimiter><Message><Delimiter>
Semantics: Output <Message> on the message line of the
display.
9.4.2.63 :OS
Toggle over-strike mode
Syntax: :OS
Semantics: Switch between insert and replace mode.
In insert mode typed input and characters
inserted with :I are inserted at the cursor
position and the cursor position is advanced,
thus pushing the text after the cursor in front
of it.
In replace mode the character at the cursor
position is replaced by the character being
inserted. If the cursor is at the end of the
line the character will be inserted rather than
replaced. If the cursor is at a tab character
the tab will be expanded to spaces before the
replacement takes place.
The current replace/insert mode is displayed on
the mode line of the display.
9.4.2.64 :OW
Switch to previous buffer
Syntax: :OW
Semantics: Switch to displaying the buffer that was selected
before switching to the current. In two window
display mode the displays in the top and bottom
windows will be switched. If no buffer has been
selected switch to buffer number 1.
9.4.2.65 :PD
Insert current date
Syntax: :PD
Semantics: Insert the current system date in the format:
DD-MMM-YYYY. This command has no effect on
systems that do not maintain the current date.
9.4.2.66 :PL
Load paste buffer
Syntax: :PL<Delimiter><File name><Delimiter>
Semantics: Insert the contents of the file given in <File
name> in the paste buffer. This command is
normally used in conjunction with the :PS command
to preserve the contents of the paste buffer
across multiple sessions.
9.4.2.67 :POPCH
Restore saved buffer change flag
Syntax: :POPCH
Semantics: Restore a buffer change flag that was previously
saved with a :PUSHCH command. PUSHCH and POPCH
commands can be nested up to 16 levels deep.
9.4.2.68 :PR
Print current buffer
Syntax: :PR<Delimiter><File name><Delimiter>
Semantics: Save the current buffer in the file given in
<File name>. After every 61 lines of output and
at the end of the file a form feed character is
inserted. If any character is typed on the
keyboard during the process the save will be
terminated.
9.4.2.69 :PS
Save paste buffer
Syntax: :PS<Delimiter><File name><Delimiter>
Semantics: Save the contents of the paste buffer in the file
given in <File name>. This command is normally
used in conjunction with :PL to preserve paste
buffers across multiple edit sessions.
9.4.2.70 :PT
Insert current time
Syntax: :PT
Semantics: Insert the current system time in the format:
HH-MM-SS. This command has no effect on systems
that do not maintain the current date.
9.4.2.71 :PUSHCH
Save and clear buffer change flag
Syntax: :PUSHCH
Semantics: The buffer change flag is saved for the current
buffer and is then cleared. The original state
of the flag can be restored with a :POPCH
command. :PUSHCH and :POPCH commands can be
nested up to 16 levels deep.
9.4.2.72 :Q
Quit
Syntax: :Q
Semantics: Terminate the Sedt session if no buffers contain
modified text. If a buffer has been modified ask
for confirmation and, if positive, terminate the
session. ATARI GEM and Microsoft Windows
versions will only close the current window.
9.4.2.73 :REP
Replace
Syntax: :REP
Semantics: If the last command was @F or @N remove the
occurrence found and insert it in the unknown
delete buffer. Then insert the contents of the
paste buffer.
9.4.2.74 :RF
Refresh display
Syntax: :RF
Semantics: Clear and reinitialize the display and rewrite
it. This command is used to recover from
corruption of the display.
9.4.2.75 :RK
Redefine key as character
Syntax: <Count>:RK<Key>
Semantics: Redefine the key given in <Key> to insert the
character whose value is given in <Count>.
<Key> is a code that identifies the class and
value of the key. It consists of a three digit
decimal number that defines the value. <Key> is
the index into the key mapping table described in
chapter 7 of this manual. Normally the value is
inserted into the command with the ! contruct.
9.4.2.76 :RL
Ruler
Syntax: :RL
Semantics: Switch into ruler definition mode. The cursor is
placed on the first character on the ruler
display in the second line of the screen.
Commands that affect the ruler are:
Right arrow Moves the cursor one character to
the right. The column number can
be read on the status line.
Left arrow Moves the cursor one column to
the left.
- Removes a tab stop at the current
position.
Tab Moves to next tab stop
^H Moves to column 1
T Inserts a tab stop at the current
position
L Sets the left margin to the
current position. When a Return
is entered the cursor will be
indented to the left margin.
R Sets the right margin to the
current position. If the right
margin is reached when entering
text, a new line will be entered
before the word being typed and
the word will be indented to the
word wrap margin.
J Sets the right margin to the
current position. If the right
margin is reached when entering
text, a new line will be entered
before the word being typed and
the word will be indented to the
word wrap margin after adjustment
of the text to the right margin.
W Sets the word wrap margin to the
current position. W fixes the
word wrap position.
A Sets automatic margin control.
The margin is always the leftmost
non-blank position on the current
line.
I Sets the indentation at the
current position.
Space Removes all formatting controls
at the current position.
Digit Load saved ruler number digit.
The rulers are saved in SEDT's
master directory under MS-DOS and
in the directory pointed to by
the logical name SEDT$Dir under
VMS. The name of the ruler file
is RulerN.Txt where N is the
number of the ruler.
Gold Digit Save current ruler in saved ruler
number digit.
Return Returns from ruler definition
mode to normal edit mode.
If more than one ruler setting is commonly used,
much time can be saved by storing the settings in
rulers 0 through 9. Ruler 0 is loaded by default
and any of the other rulers can be called up with
four key strokes: Gold R Digit Return.
The ruler line controls both left and right
margins. Several options exist for controlling
the margins.
No margin control is done if L, W, R and I are
set in column 1. Lines can be infinitely long
and the cursor is always positioned in column 1
after a Return is typed.
If L is set in a column different from 1 and W is
set in column 1 a Return will cause SEDT to
indent to the column defined by L.
If I is set in a column different from 1 and the
cursor is positioned to the left of the column a
Tab will indent to the column defined by I.
The left and right margin controls work as
follows:
W and R:
When a non-blank character is typed to
the right of R SEDT will insert a Return
in front of the first word that extends
to the right of R and indent to the W
column. The effect will be that text
will be filled between W and R. The fill
command, Gold Keypad 8 will fill text
from the current cursor position to the
end of the current paragraph. Text to
the left of W will be left unaffected.
W and J:
When a non-blank character is typed to
the right of J SEDT will change the
spacing between the current position and
W so that spacing after punctuation
characters will be exactly 2 and after
non-punctuation characters will be 1. A
return will then be inserted before the
first word that extends to the right of
J, after which spaces will be inserted
between words until the right margin is
justified to J. Finally the wrapped word
will be indented to W. Text to the left
of W will be left unaffected.
A and R:
When a non-blank character is inserted to
the right of R a return will be inserted
in front of the first word that extends
to the right of R. The text after the
return will be indented to the same level
as the line just terminated.
A and J:
When a non-blank character is typed to
the right of J SEDT will change the
spacing between all words to the left of
the current position so that spacing
after punctuation characters will be
exactly 2 and after non-punctuation
characters will be 1. A return will then
be inserted before the first word that
extends to the right of J, after which
spaces will be inserted between words
until the right margin is justified to
the same level as the line just
terminated.
W to the right of, or at J/R:
No filling or justification will occur.
A to the right of or at J/R:
When a Return is typed the cursor will be
indented to the same level as the line
just terminated. If the terminated line
is empty the indentation level will
remain unchanged. This mode is
particularly useful for structured
programming.
9.4.2.77 :RMCHA
Clear character delete buffer
Syntax: :RMCHA
Semantics: Clear the contents of the character delete
buffer.
9.4.2.78 :RMHEL
Clear help buffer
Syntax: :RMHEL
Semantics: Clear the contents of the help buffer.
9.4.2.79 :RMLIN
Clear line delete buffer
Syntax: :RMLIN
Semantics: Clear the contents of the line delete buffer.
9.4.2.80 :RMPAG
Clear page delete buffer
Syntax: :RMPAG
Semantics: Clear the contents of the page delete buffer.
9.4.2.81 :RMPAR
Clear paragraph delete buffer
Syntax: :RMPAR
Semantics: Clear the contents of the paragraph delete
buffer.
9.4.2.82 :RMPAS
Clear paste buffer
Syntax: :RMPAS
Semantics: Clear the contents of the paste buffer.
9.4.2.83 :RMSEA
Clear search buffer
Syntax: :RMSEA
Semantics: Clear the contents of the search buffer.
9.4.2.84 :RMSEN
Clear sentence delete buffer
Syntax: :RMSEN
Semantics: Clear the contents of the sentence delete buffer.
9.4.2.85 :RMSUB
Clear substitute buffer
Syntax: :RMSUB
Semantics: Clear the contents of the substitute buffer.
9.4.2.86 :RMUNK
Clear unknown delete buffer
Syntax: :RMUNK
Semantics: Clear the contents of the unknown delete buffer.
9.4.2.87 :RMWOR
Clear word delete buffer
Syntax: :RMWOR
Semantics: Clear the contents of the word delete buffer.
9.4.2.88 :RS
Reset select range
Syntax: :RS
Semantics: Remove the select point and repaint the current
window.
9.4.2.89 :RTAB
Replace tabs with spaces
Syntax: :RTAB<@ command>
Semantics: Within the given entity replace all tab
characters with multiple spaces.
9.4.2.90 :RUL
Load ruler from entity
Syntax: :RUL<@ command>
Semantics: Interpret the text within the @ command as a
ruler definition string in the same format as the
ruler files.
9.4.2.91 :RUS
Save ruler in buffer
Syntax: :RUS
Semantics: Write the contents of the ruler into the current
buffer in the same format as a ruler definition
file.
9.4.2.92 :SAVF
Save function definitions in file
Syntax: :SAVF<Delimiter><File name><Delimiter>
Semantics: Saves all function definitions (loaded at
startup, defined later and learned) in the given
file. The definitions are saved in the binary
format for function definition files. Use MAPKEY
DUMP FUNCTIONS to convert to an ASCII file.
9.4.2.93 :SASC
Show ASCII value of character under cursor
Syntax: :SASC
Semantics: Prints the ASCII value of the character under the
cursor on the message line.
9.4.2.94 :SAVK
Save key definitions in file
Syntax: :SAVK<Delimiter><File name><Delimiter>
Semantics: Saves the definitions of all key mappings (loaded
at startup, defined later and learned) in the
given file. The mappings are saved in the binary
format for key map files. USE MAPKEY DUMP KEYS
to convert to an ASCII file.
9.4.2.95 :SC
Show current column
Syntax: :SC
Semantics: Display the column that the cursor is currently
placed at on the bottom line of the display.
9.4.2.96 :SEL
Select
Syntax: :SEL
Semantics: Set the select point to be the current cursor
position.
9.4.2.97 :SETB
Set block/line mode toggle
Syntax: <Count>:SETB
Semantics: Sets the value of the block/line mode toggle to
the value of <Count>. A value of 0 sets line
mode. 1 sets block mode.
9.4.2.98 :SETD
Set direction toggle
Syntax: <Count>:SETD
Semantics: Sets the value of the direction toggle to the
value of <Count>. A value of 0 sets it to
reverse. 1 sets it to forward.
9.4.2.99 :SETF
Set cursor behavior toggle
Syntax: <Count>:SETF
Semantics: Sets the value of the cursor behavior toggle to
the value of <Count>. A value of 0 makes the
left and right cursor keys move through the file
a character at a time and the up and down keys
never move the cursor beyond the end of a line.
1 makes the left and right cursor keys move
freely on the current line and the up and down
keys move straight. Lines will be padded with
spaces if the cursor is moved beyond the end of
the line.
9.4.2.100 :SETK
Set typewriter key command execution toggle
Syntax: <Count>:SETK
Semantics: Makes Sedt execute commands bound to typewriter
keys if <Count> is 1, otherwise the ascii
character bound to the key is inserted even if
the key has been programmed.
9.4.2.101 :SETR
Set replace/insert toggle
Syntax: <Count>:SETR
Semantics: Sets the value of the replace/insert mode toggle
to the value of <Count>. A value of 0 sets it to
insert. 1 sets it to replace.
9.4.2.102 :SETT
Set tab insert/expand toggle
Syntax: <Count>:SETT
Semantics: Sets the value of the tab insert/expand toggle to
the value of <Count>. A value of 0 sets it to
inserted. 1 sets it to expand.
9.4.2.103 :SETU
Set case sensitivity toggle
Syntax: <Count>:SETU
Semantics: Sets the value of the case sensitivity toggle to
the value of <Count>. A value of 0 sets case
insensitive searches. 1 sets case sensitive
searches.
9.4.2.104 :SETX
Set function definition toggle
Syntax: <Count>:SETX
Semantics: Sets the value of the function definition toggle to
the value of <Count>. A value of 0 makes all
keys insert a single character in responses to
prompts. 1 causes keys assiciated with function
definitions to insert the definition in responses
to prompts.
9.4.2.105 :SI
Send a shift in character
:Syntax: :SI
Semantics: Under VMS or ULTRIX a shift in character (decimal
15) is sent to the terminal. This will shift the
displayed character set into the normal character
set.
9.4.2.106 :SK
Save key definition
Syntax: :SK<Key>
Semantics: Insert the definition of <Key> in the current
buffer. For valid codes for <Key> see :K. This
command is used in conjunction with :LK to edit
key definitions.
9.4.2.107 :SL
Load search buffer
Syntax: :SL<@ command>
Semantics: Copy the contents of the buffer between the
cursor position and the position defined by the @
command into the search buffer. The search
buffer is used by the @F, @N and :SUB commands.
9.4.2.108 :SO
Send a shift out character
Syntax: :SO
Semantics: Under VMS or ULTRIX a shift out character
(decimal 14) is sent to the terminal. This will
change the character set displayed to the
alternate character set.
9.4.2.109 :STAB
Replace multiple spaces with tabs
Syntax: :STAB<@ command>
Semantics: Replace multiple spaces within the given entity
with tab characters where possible.
9.4.2.110 :STRP
Strip trailing spaces
Syntax: :STRP<@ command>
Semantics: Strip all trailing space and tab characters
within the given entity. Trailing spaces are
those after the last printable character on the
line.
9.4.2.111 :SUB
Substitute
Syntax:
{+|-|<|>}{<Count>}:SUB<Delimiter><Target><Delimiter><Object><Delimiter>
Semantics: Find the next occurrence of <Target> in the
current direction and replace it with <Object>.
If the cursor is placed on the first character of
<Target> and the direction is forward make the
substitution. If <Target> is empty use the
current search string, set by @F or :SL. If
<Object> is empty use the current substitute
string. If Target is non-empty insert it in the
current search string. If <Object> in non-empty
insert it in the current substitute string. If
the direction is forward, place the cursor at the
end if the inserted string, end if it is backward
place the cursor at the beginning. The search is
case insensitive.
9.4.2.112 :SV
Show Version
Syntax: :SV
Semantics: Show the version number of Sedt on the message
line.
9.4.2.113 :SYQ
Spawn with no output
Syntax: :SYQ<Delimiter><Command><Delimiter>
Semantics: The :SYQ is the same as the :SYS command with the
exception that it does not clear the screen and
refresh it after the spawn. This command is used
to execute programs that accept no input and
provide no output.
9.4.2.114 :SYR
Spawn with redirected output
Syntax: :SYR<Delimiter><New stdout><Delimiter><New stderr>
<Delimiter><Command><Delimiter>
Semantics: The :SYR command is similar to the :SYQ command,
but redirects standard output and error output
for the child process to the given file names.
9.4.2.115 :SYS
Spawn to operating system
Syntax: :SYS<Delimiter><Command><Delimiter>
Semantics: Execute <Command> and a command to the operating
system. Before the command is executed the
screen is cleared and the modes reset to the
default modes. If <Command> is empty call the
command processor. On return prompt for input of
a single keystroke if <Command> was non-empty.
Then refresh the display.
On MS-DOS systems COMSPEC is used to locate the
command interpreter which is spawned when the
argument to :SYS is empty.
SEDT uses free memory to contain buffers and
other working areas. Whether enough memory is
available to actually perform the :SYS command
depends on the largest memory requirement that
SEDT has had during the session. It is not
possible to return memory once it has been
claimed and used by SEDT.
9.4.2.116 :TAB
Move to next tab stop
Syntax: {<Count>}:TAB
Semantics: If the current indentation level is to the right
of the cursor insert tab and space characters
until the cursor is placed at the indentation
level. Otherwise insert tab and space characters
until the cursor is at the next tab stop. If no
tab stops are to the right of the cursor do
nothing. Only space characters will be inserted
if the current tab expansion mode is to expand
tabs. The tab expansion is changed with the :TT
command and displayed on the mode line of the
display.
In overstrike mode :TAB will space over any
characters already on the line.
9.4.2.117 :TAD
Adjust text by one tab stop
Syntax: {+|-|<|>}{<Count>}:TAD<@ command>
Semantics: Move all lines fully contained between the
current cursor position and the position defined
by the @ command <Count> tab stops left if the
current direction is backward or right if the
current direction is forward. Left adjustment is
not performed further than to the first non space
or tab character.
9.4.2.118 :TB
Toggle Block Mode
Syntax: :TB
Semantics: Toggle between block and line cut and paste.
In line mode (shown by line on the mode line),
the select region is all characters between the
cursor and the select point. Cut operations will
remove the entire select region. Paste
operations will insert the entire paste region at
the cursor position.
In block mode a cut operation will remove all
characters that are within the rectangle
delimited by the cursor and the select point. A
paste operation will insert the paste buffer,
line by line in the buffer starting at the
cursor position and at the cursor column, thus
inserting a rectangle of text into the buffer.
The select region will only have the column at
the select point shown in reverse video.
9.4.2.119 :TC
Toggle Control Character Display
Syntax: :TC
Semantics: Toggles between display of control characters as
single reverse video characters with control C
shown as a reverse video C, or as strings in the
format <name> when name is the ASCII mnemonic for
the character.
9.4.2.120 :TD
Toggle Direction
Syntax: :TD
Semantics: Toggle the direction flag shown on the mode line.
Most cursor movement commands work in the
direction shown by the direction flag.
9.4.2.121 :TF
Toggle Cursor Key Behavior
Syntax: :TF
Semantics: Toggle between two alternate cursor key
behaviors. When "Rest" is displayed on the mode
line the left and right cursor keys will move
through the file and the up and down cursor keys
will never move further to the right trhan the
end of a line. When "Free" is displayed, the
left and right cursor keys will move freely left
and right, and the up and down keys will always
move directly. Lines will be padded with spaces
if the cursor is moved beyond the end of a line.
9.4.2.122 :TI
Test for input
Syntax: :TI
Semantics: Set SEDT's internal error flag if the internal
type-ahead buffer contains any characters. This
command is used to terminate a command loop by
typing a character.
9.4.2.123 :TK
Toggle typewriter key command execution
Syntax: :TK
Semantics: Toggle between executing commands bound to
typewriter keys and inserting the ascii character
bound to the keys even when they are bound to
commands.
9.4.2.124 :TM
Toggle buffer markers
Syntax: :TM
Semantics: Toggle between showing the beginning and end of
buffers with bold, reverse video BOF and EOF
markers. Default is not to show the markers.
9.4.2.125 :TP
Toggle Cursor Line
Syntax: :TP
Semantics: Toggles between full screen display where the
cursor line will float within the display window
to minimize screen updates, and mid-line editing
where the cursor is always on the center line of
the window.
9.4.2.126 :TR
Toggle ruler display
Syntax: :TP
Semantics: Toggles display of the current ruler at the top
of the window.
9.4.2.127 :TS
Toggle automatic screen shifts
Syntax: :TS
Semantics: Toggle shifting the screen image horizontally to
keep the current cursor position within the
screen margins. When screen shifting is toggled
off the leftmost column on the screen will always
correspond to the leftmost column in the file.
The current state of the toggle is shown on the
mode line of the display.
9.4.2.128 :TT
Toggle tab expansion
Syntax: :TT
Semantics: Toggle between inserting tab characters in the
buffer and expanding them into space characters.
The current state of the toggle is displayed on
the mode line of the display.
9.4.2.129 :TU
Toggle case sensitivity
Syntax: :TU
Semantics: Toggle between case sensitive and case
insensitive searches. The current state of the
toggle is displayed on the mode line of the
display.
9.4.2.130 :TX
Toggle function definition insertion
Syntax: :TX
Semantics: Toggle between inserting characters and function
definitions in reponses to prompts. The current
state of the toggle is displayed on the mode line
of the display.
9.4.2.131 :UC
Undelete character
Syntax: {<Count>}:UC
Semantics: Insert the contents of the character undelete
buffer at the current cursor position.
9.4.2.132 :UL
Undelete line
Syntax: {<Count>}:UL
Semantics: Insert the contents of the line delete buffer at
the current cursor position.
9.4.2.133 :UM
Undo last command
Syntax: :UM
Semantics: Attempt to negate the effect of the last command.
Commands for which :UM has been implemented are:
All @ commands.
:SUB
:D
Attempting to undo any other command will cause
an error do be displayed.
9.4.2.134 :UOFF
Turn off screen updates
Syntax: :UOFF
Semantics: Prevents screen updating until a :UON, :WC, :WI
or :RL command is executed. This command is used
to prevent excessive screen updating processes
with complex command sequences;
9.4.2.135 :UON
Turn on screen updates
Syntax: :UON
Semantics: Restores screen updating and repaint the screen
to reflect any changes made while updates were
turned off.
9.4.2.136 :UPAG
Undelete page
Syntax: {<Count>}:UPAG
Semantics: Insert the contents of the page delete buffer at
the current cursor position.
9.4.2.137 :UPAR
Undelete paragraph
Syntax: {<Count>}:UPAR
Semantics: Insert the contents of the paragraph delete
buffer at the current cursor position.
9.4.2.138 :UPD
Update screen header
Syntax: :UPD
Semantics: Update the first line of the display. This is
normally done only when SEDT is ready for input
and there are no characters in the type-ahead
buffer.
9.4.2.139 :USEN
Undelete sentence
Syntax: {<Count>}:USEN
Semantics: Insert the contents of the sentence delete buffer
at the current cursor position.
9.4.2.140 :USR
Paste
Syntax: {<Count>}:USR
Semantics: Insert the contents of the paste buffer at the
current cursor position.
9.4.2.141 :UU
Undelete unknown
Syntax: {<Count>}:UU
Semantics: Insert the contents of the unknown delete buffer
at the current cursor position.
9.4.2.142 :UW
Undelete word
Syntax: {<Count>}:UW
Semantics: Insert the contents of the word delete buffer at
the current cursor position.
9.4.2.143 :WC
Toggle windows
Syntax: :WC
Semantics: Toggle between one and two window displays. The
bottom window will be empty if :WC is used before
:WI is used. If :WI has been used the two window
display will show the buffer selected as the
current buffer before the last :WI command was
executed.
9.4.2.144 :WD
Toggle width
Syntax: :WD
Semantics: Toggle between 80 and 132 column display formats.
This command has no effect on systems that cannot
support 132 character displays.
9.4.2.145 :WI
Select buffer
Syntax: <Count>:WI
Semantics: Select the buffer given in <Count> as the current
buffer. Valid buffers are 0 through 999.
Each buffer has a unique edit environment
including:
Input file
Output file
Current position
Ruler
Marks
Select point
9.4.2.146 :X
Exit
Syntax: :X
Semantics: Save the current buffer in it's output file.
Then exit unless other buffers contain unsaved
changes. If unsaved changes exist prompt the
user for confirmation before exiting.
9.4.2.147 :YN
Prompt for Confirmation
Syntax: :YN<Delimiter><String><Delimiter>
Semantics: Display the string on the bottom line of the
display with the string <Y/N>: appended and wait
for the user to enter either a Y or an N from the
keyboard. If the response is Y the error flag
will be set, otherwise it will be cleared. :YN
is used in conjunction with ^E conditional
execution. For example
^E(:YN/Question?/)(:OM/Yes/|:OM/No/) will output
a Yes if Y is typed in response. If <control> U
is typed the entire command will be aborted.
9.4.2.148 :Z
Zap buffer
Syntax: <Count>:Z
Semantics: Clear the current buffer. If unsaved changes
have been made prompt the user for confirmation
before clearing.
If <Count> is zero, the buffer will be marked as
read-only. Even if the buffer is modified, the
contents will not be saved and you will not be
warned if the buffer is cleared.
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Appendix A
Keyboard translation
Key LK201/LK250
<Escape>
<Backspace>
<Return> <Return>
<Linefeed>
<Delete> <<X>
<Control> <Ctl>
<Tab> <Tab>
<Space> <Spacebar>
<F1> <F1>
<F2> <F2>
<F3> <F3>
<F4> <F4>
<F5> <F5>
<F6> <F6>
<F7> <F7>
<F8> <F8>
<F9> <F9>
<F10> <F10>
<F11> <F11>
<F12> <F12>
<F13> <F13>
<F14> <F14>
<Help> <Help>
<Do> <Do>
<F17> <F17>
<F18> <F18>
<F19> <F19>
<F20> <F20>
<Find> <Find>
<Insert Here> <Insert Here>
<Remove> <Remove>
<Select> <Select>
<Prev Screen> <Prev Screen>
<Next Screen> <Next Screen>
<Up arrow> <Up Arrow>
<Left arrow> <Left Arrow>
<Down arrow> <Down Arrow>
<Right arrow> <Right Arrow>
<Keypad 0> <Keypad 0>
<Keypad 1> <Keypad 1>
<Keypad 2> <Keypad 2>
<Keypad 3> <Keypad 3>
<Keypad 4> <Keypad 4>
<Keypad 5> <Keypad 5>
<Keypad 6> <Keypad 6>
<Keypad 7> <Keypad 7>
<Keypad 8> <Keypad 8>
<Keypad 9> <Keypad 9>
<Keypad ,> <Keypad ,>
<Keypad -> <Keypad ->
<Keypad .> <Keypad .>
<Gold> <Keypad PF1>
<PF2> <Keypad PF2>
<PF3> <Keypad PF3>
<PF4> <Keypad PF4>
<Keypad Enter> <Keypad Enter>
Key IBM PC IBM PC/AT Enhanced IBM
<Escape>
<Backspace>
<Return> <Enter> <Enter> <Enter>
<Linefeed>
<Delete> <<-> <<-> <Backspace>
<Control> <Ctrl> <Ctrl> <Ctrl>
<Tab> <->|> <->|> <Tab>
<Space> <Spacebar> <Spacebar> <Spacebar>
<F1> <F1> <F1> <F1>
<F2> <F2> <F2> <F2>
<F3> <F3> <F3> <F3>
<F4> <F4> <F4> <F4>
<F5> <F5> <F5> <F5>
<F6> <F6> <F6> <F6>
<F7> <F7> <F7> <F7>
<F8> <F8> <F8> <F8>
<F9> <F9> <F9> <F9>
<F10> <F10> <F10> <F10>
<F11> <Shift> <F1> <Shift> <F1> <F11>
<F12> <Shift> <F2> <Shift> <F2> <F12>
<F13> <Shift> <F3> <Shift> <F3> <Shift> <F3>
<F14> <Shift> <F4> <Shift> <F4> <Shift> <F4>
<Help> <Shift> <F5> <Shift> <F5> <Shift> <F5>
<Do> <Shift> <F6> <Shift> <F6> <Shift> <F6>
<F17> <Shift> <F7> <Shift> <F7> <Shift> <F7>
<F18> <Shift> <F8> <Shift> <F8> <Shift> <F8>
<F19> <Shift> <F9> <Shift> <F9> <Shift> <F9>
<F20> <Shift> <F10> <Shift> <F10> <Shift> <F10>
<Find> <Shift> <Home> <Shift> <Home> <Home>
<Insert Here> <Shift> <Ins> <Shift> <Ins> <Insert>
<Remove> <Shift> <Del> <Shift> <Del> <Delete>
<Select> <Shift> <End> <Shift> <End> <End>
<Prev Screen> <Shift> <Pg Up> <Shift> <Pg Up> <Page Up>
<Next Screen> <Shift> <Pg Dn> <Shift> <Pg Dn> <Page Down>
<Up arrow> <Shift> <Up Arrow>
<Shift> <Up Arrow>
<Up Arrow>
<Left arrow> <Shift> <Left Arrow>
<Shift> <Left Arrow>
<Left Arrow>
<Down arrow> <Shift> <Down Arrow>
<Shift> <Down Arrow>
<Down Arrow>
<Right arrow> <Shift> <Right Arrow>
<Shift> <Right Arrow>
<Right Arrow>
<Keypad 0> <Keypad 0> <Keypad 0> <Keypad 0>
<Keypad 1> <Keypad 1> <Keypad 1> <Keypad 1>
<Keypad 2> <Keypad 2> <Keypad 2> <Keypad 2>
<Keypad 3> <Keypad 3> <Keypad 3> <Keypad 3>
<Keypad 4> <Keypad 4> <Keypad 4> <Keypad 4>
<Keypad 5> <Keypad 5> <Keypad 5> <Keypad 5>
<Keypad 6> <Keypad 6> <Keypad 6> <Keypad 6>
<Keypad 7> <Keypad 7> <Keypad 7> <Keypad 7>
<Keypad 8> <Keypad 8> <Keypad 8> <Keypad 8>
<Keypad 9> <Keypad 9> <Keypad 9> <Keypad 9>
<Keypad ,> <Shift> <Keypad ->
<Keypad -> <Keypad +>
<Keypad -> <Keypad -> <Prt Sc> <Shift> <Keypad +>
<Keypad .> <Keypad .> <Keypad .> <Keypad .>
<Gold> <Esc>,<Num Lock><Esc> <Esc>,<Num Lock>
<PF2> <Shift> <Num Lock>
<Num Lock> <Keypad />
<PF3> <Scroll Lock>
<Scroll Lock> <Keypad *>
<PF4> <Shift> <Scroll Lock>
<Sys Req> <Keypad ->
<Keypad Enter> <Keypad +> <Keypad +> <Keypad Enter>
Key IBM Convert. ATARI ST
<Escape>
<Backspace> <Backspace>
<Return> <Enter> <Return>
<Linefeed>
<Delete> <Bksp> <Delete>
<Control> <Ctrl> <Control>
<Tab> <->|> <Tab>
<Space> <Spacebar> <Spacebar>
<F1> <F1> <F1>
<F2> <F2> <F2>
<F3> <F3> <F3>
<F4> <F4> <F4>
<F5> <F5> <F5>
<F6> <F6> <F6>
<F7> <F7> <F7>
<F8> <F8> <F8>
<F9> <F9> <F9>
<F10> <F10> <F10>
<F11> <Shift> <F1> <Shift> <F1>
<F12> <Shift> <F2> <Shift> <F2>
<F13> <Shift> <F3> <Shift> <F3>
<F14> <Shift> <F4> <Shift> <F4>
<Help> <Shift> <F5> <Shift> <F5>
<Do> <Shift> <F6> <Shift> <F6>
<F17> <Shift> <F7> <Shift> <F7>
<F18> <Shift> <F8> <Shift> <F8>
<F19> <Shift> <F9> <Shift> <F9>
<F20> <Shift> <F10> <Shift> <F10>
<Find> <Fn> <Home> <Shift> <Clr Home>
<Insert Here> <Ins> <Insert>
<Remove> <Del> <Clr Home>
<Select> <Fn> <End> <Shift> <Insert>
<Prev Screen> <Fn> <PgUp> <Shift> <Up Arrow>
<Next Screen> <Fn> <PgDn> <Shift> <Down Arrow>
<Up arrow> <Up Arrow> <Up Arrow>
<Left arrow> <Left Arrow> <Left Arrow>
<Down arrow> <Down Arrow> <Down Arrow>
<Right arrow> <Right Arrow> <Right Arrow>
<Keypad 0> <Fn> <Keypad 0> <Keypad 0>
<Keypad 1> <Fn> <Keypad 1> <Keypad 1>
<Keypad 2> <Fn> <Keypad 2> <Keypad 2>
<Keypad 3> <Fn> <Keypad 3> <Keypad 3>
<Keypad 4> <Fn> <Keypad 4> <Keypad 4>
<Keypad 5> <Fn> <Keypad 5> <Keypad 5>
<Keypad 6> <Fn> <Keypad 6> <Keypad 6>
<Keypad 7> <Fn> <Keypad 7> <Keypad 7>
<Keypad 8> <Fn> <Keypad 8> <Keypad 8>
<Keypad 9> <Fn> <Keypad 9> <Keypad 9>
<Keypad ,> <Fn> <Keypad *> <Keypad +>
<Keypad -> <Fn> <Keypad /> <Keypad ->
<Keypad .> <Fn> <Keypad .> <Keypad .>
<Gold> <Num Lock> <Esc>,<Keypad (>
<PF2> <Scroll Lock> <Keypad )>
<PF3> <Fn> <Keypad -> <Keypad />
<PF4> <Fn> <Keypad +> <Keypad *>
<Keypad Enter> <Keypad Enter>
Copyright (c) Anker Berg-Sonne, 1985-1990
Sedt Version 4.1 (276)
Appendix B
Installation
Each installation kit contains a file named INSTALL.HOW.
This text file contains installation instructions for the kit.
Sedt Version 4.1 (276)
Appendix C
Error Messages
Error messages fall into four classes: Fatal error
messages that cause Sedt to abort execution, and three levels of
non-fatal errors.
Fatal errors cause Sedt to abort the edit session. If
you have enabled autosaves you may be able to recover the edit
session close to the point where it aborted.
Fatal errors:
Attempt to get before beginning
Internal Sedt error. This is caused by a bug in Sedt.
Could not open key definition file
Sedt could not find the key definition file due to
improper installation or improper operation of Sedt .
Error creating buffer file
Sedt was unable to create a temporary file on disk due to
a lack of disk space available. Correct the situation
and restart the edit session for a recovery.
Error reading data from buffer
Internal Sedt error. This is caused by a bug in Sedt.
Error writing data from buffer
Sedt was unable to write to a temporary file on disk due
to a lack of disk space available. Correct the situation
and restart the edit session for a recovery.
More files than buffers
You attempted to call Sedt with a command that requested
editing more than 1000 different files.
Too many file arguments
For each buffer you can only request an input and an
output file. You supplied more than two file arguments
to the buffer.
Other errors are non-fatal and can optionally ring the
bell to get your attention. This is done with the :EL command.
