Within the text editor one moves the cursor by using the mouse or the arrow keys on the keypad. Long moves of the cursor can be made by striking LONG once or twice before the arrow keys. One LONG LONG } preceding a vertical arrow key moves the cursor up or down four lines; if used before a horizontal arrow key LONG moves the cursor left or right four positions. Two LONG 's move the cursor to the end of the line if they precede a horizontal arrow key; if they precede a vertical arrow key they move the cursor up or down by a screenful. To move the cursor from one edit window to another the JUMP JUMP } key is used.
Text is deleted using the delete key on the terminal or
the kill key, KILL
. The delete key
removes the character to the left of the cursor, while the kill key removes
the character at which the cursor is positioned.
An entire region of text can be erased using the KILL
key on a
selected region. To select a region, the cursor is positioned at the
beginning of the region and the SEL
key is pressed or L is clicked. The
cursor is then positioned at the end of the region and SEL
is pressed
again or L is clicked.
If the KILL
key is used now the entire region is deleted
and stored in a special buffer called
the kill buffer. At most one
region can be selected at a time; if three endpoints are selected only the
last two are remembered. A kill operation causes the system to ``forget''
both the endpoints.