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There are a few more that deal with the VT terminals, but as I've said
already, there is really no need to list them.
INTERRUPT
=========
The control character 'C' (CTRL/C or ^C -which it shall from now on be
referred to as.) is used to halt the execution of the current TECO command,
the same as it does in the BASIC monitor. If ^C is typed twice without a TECO
command in between, the utility is aborted. (You are returned to the keyboard
monitor whichever it was.. eg. BASIC, BASIC+2, RSX..)
COMMAND EXECUTION
=================
When TECO is called, you will receive the * prompt. This is the command
prompt. Almost all commands used by the editor are one or two characters in
length and are typed in using a normal ASCII keyboard. To terminate a TECO
command the <ESCAPE> sequence is used. When typed, it will echo back as a $
character. Two consecutive <ESCAPE>s must be entered before a command will be
carried out. This allows you to string together a line of commands like:
* [command1]$[command2]$[command3]$ ... $$
COMMANDS
========
]Moving the Pointer[
The text pointer is used to represent where you are working, ie. if you
were to enter a command, what part of the text it would affect. It's similar
to the job your cursor does when writing a program on your micro.
'J'
The "J" command is used to move the text pointer to the beginning or end of
the editing buffer.
BJ Move to the beginning of the buffer.
ZJ Move to end of the editing buffer.
'L'
The "L" command moves the text pointer from one line to another. Common
forms of the command are:
L Move to beginning of the next line.
0L Move to front of current line.
3L Move to the third line down from the current line.
-1L Move back to previous line. (One above current.)
...
'C'
The "C" command is used to move the text pointer past a specified number of
characters, forward or backwards, on the current line. Common forms include:
C Advance the pointer to the next character.
5C Move the pointer forward five characters.
-5C Move back five characters.
...
]Listing Text[
There is one command with a couple various forms to list the text within
the editor; they follow.
'T'
The "T" is used to list text from the editing buffer. Commonly found forms
are:
HT Print the entire contents of the editing buffer.
T Type text from the pointer to the end of the current line.
0T Type text from the beginning of the line to the text pointer.
5T Print the next five lines of text from the buffer, starting where
the pointer is located.
...
]Entering Text[
What use is an editor if you can't add to the text? There is one command,
insert, which allows you to write. If you are creating a file from scratch,
you would enter the insert command each time you wanted to add a new line to
your document.
'I'
The "I" command is used to insert text into the buffer. After issued, the
text entered will be placed where the text pointer is located. The command is
of the form:
I <text> <ESCAPE>
For example, to insert the sentence, "This is an example.", type:
IThis is an example$
(Note: Remember that <ESCAPE> echoes back to your screen as $)