HP NonStop G-Series - Manual (Page 256)

Text Lines and Printable Characters
Handling Your EDIT Files
6–6 058061 Tandem Computers Incorporated
Text Lines and
Printable Characters
Each text line in an EDIT file contains from zero characters to a maximum
of 239 to 255 printable characters. (Because of the way in which EDIT stores
characters internally, the maximum number of characters that fit on a text
line depends on the number and distribution of the blank spaces in the
line.) A line with zero characters is blank.
Any nonprintable character inserted into an EDIT file may adversely affect
EDIT. Therefore, you should insert only printable characters into an EDIT
file. The printable characters are:
a b c d e f g h i j k l m n o p q r s t u v w x y z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
0 1 2 3 4 5 6 7 8 9
{ } ! @ # $ % ^ & * ( ) - _ +
= [ ] ~ " ` : ; ? / > . < ,
blank space
EDIT identifies each character position in a line by a column number; the
first column (on the left) is column 1, the last is column 255. You do not see
column numbers on the screen when you use EDIT. However, the LIST
command with the COL keyword will display column numbers on the
screen. (The LIST command is described in Section 4.)
While it is true that a text line can contain up to 255 characters, terminal
screens are only 80 characters wide. Because EDIT does not allow you to
move the screen window left and right, text lines that are longer than 80
characters occupy more than one line on the screen. Figure 6-1 shows how
lines longer than 80 characters look when you use the EDIT program.