SAVE SCREEN Type I Commands 9,u(r_ .. , , \ ' 1his, may' used an ,exit from any given editing level
without re-writing the file to disk. When the QUIT command is entered, all
storage for the given level is released, and any autosave files for this level (on
any READ/WRITE disk) are erased. ' SAVE <Fn <Ft <Fm»>
The SAVE command causes the file at the current edit level to be written to
disk without releasing the level. After issuing the 'SA VE command, the user
may continue editing the current file. This command is the same as FILE
except that no new level is entered after command completion (see FILE
command for a description of the valid arguments). SCR <nl> <n2> ........ .
The SCREEN command is used to define logical screens by depth. The default
setting is "24". If the SCREEN command is entered with no parameters, the
current setting will be displayed. The operands to the SCREEN command each
represent one logical screen and indicate the number of screen lines of an edit
level virtual screen which can be displayed in the corresponding logical
screen. The first line displayed in each logical screen is always line one of an
edit level virtual screen. When an edit level is ENTERed, it automatically
becomes eligible for the "next available" logical screen (if any). Figure 5
illustrates a display with two logical screens.
24
Type II Commands
ADD
BACKWARD BOTTOM CASE , Most Type II' cOmlnarids pertain to the "current line". The "current line" is
normally the displayed line immediately following the command line. In any
case, the "current line" may be identified (if Type III command areas exist on
the screen) by a "/" at th'e start of the corresponding Type III area instead of
the normal "*". A display normally consists of the "current line" followed by
as many succeeding items as possible within the dimensions of the current
logical display. Movement or "scrolling" through the file, therefore, is the
adjustment of "current line".
The Type II commands, their shortest forms, and valid arguments are listed
below:
A <n>
The ADD command is used to add blank lines to the file immediately follow­
ing the "current" line. These blank lines may be used for new data whenever
desired. "n" may be specified to indicate the number of lines to be "added". If "n" is omitted, one blank line is added. In some files, particularly those
destined for certain compilers, blank lines cannot be allowed to remain in the
file when re-written to disk. To eliminate the need to delete blank lines
before a FILE or SAVE request, use the Type II function: "SET DB LANK ON". This will cause wholly blank lines to be eliminated from the file written to
disk. These lines, however, will remain embedded within the in-storage
(working copy) of the file to allow use of the lines later in the editing
session.
B <n>
To allow "backward" scrolling through the file, the BACKWARD command
may be used to move the "current" line back (toward the top of the file) "n" pages. A "page" is defined as the depth (number of items) last displayed on
the I/O virtual screen. In the example in figure 2 the depth is 22. Thus, the
BACKWARD command will cause the "current line" to be moved "back" (toward the top of the file) 22 lines. BOT BOTTOM sets the current line to the last line in the file. If there are no lines in
the file, the current line becomes "EOF". CAS < M I U>
CASE is used to display or alter the upper case/lower case translation setting. "CASE V" specifies that all characters entered in the corresponding logical
display are to be translated to upper case automatically. IICASE M" indicates
that no translation is to be performed. If no parameters are specified on the
CASE command, the current setting is displayed on the Type II command line.
Type II Commands 25
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