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DISPLAY
Lists a procedure which is stored in the current Proc-file.
Syntax
[,m [,n] ]
D[ISPLAY] procedure name [,file name]
For example:
>D PROCA,2,4
Where procedure name = PROCA, m = 2, n = 4
>DISPLAY GETIT
Where procedure name = GETIT
>DISPLAY REP4,FILEB
Where procedure name = REP4, file name = FILEB
Parameters
procedure name is the name of a procedure in the current
Proc-file. Refer to Table 2-2 for a list of
commands which can be used in procedures.
m and n are the first and last line of the procedure
(respectively) to be displayed. m must be an
integer less than or equal to n and greater than
or equal to 1.
file name is the name of an MPE ASCII file into which the
displayed procedure is to be written.
Discussion
When you use this command, QUERY searches the current Proc-file for the
named procedure. If the procedure does not exist or if no Proc-file has
been declared, you are informed and prompted for another command.
If the procedure does exist, it is listed with line numbers for reference
when editing the procedure with the ALTER command. If line numbers (m,n)
are included in the DISPLAY command, only those lines specified will be
listed. If only m is included, the procedure will be listed from line m
to the end of the procedure.
Displaying to a File
If a file name is included in this command, QUERY writes the procedure
statements (excluding line numbers and header which appear as part of the
procedure listing) to the specified file. The entire procedure must be
transferred. Any existing information in the file is overwritten.
If you have access to save files and file name does not exist in your
log-on group, QUERY creates a new file using file name as the formal
designator (name of the file). The file size will be 200 records. The
maximum Proc-file record size is 125 words. The following message is
printed when this situation occurs.
FILE DOES NOT EXIST, BEING CREATED
Example
>DISPLAY FIND1,FINDSET
>DISPLAY FIND1
PROCEDURE: FIND1
001 FIND
002 CUSTOMER.ACCOUNT IS ""
003 END
In the example above, the FIND1 procedure is written to file FINDSET.
Then FIND1 is listed on the terminal.
>OUT=LP
>D FINDCH
>OUT=TERM
>D FINDCH
PROCEDURE: FINDCH
001 FIND CHAIN
002 CUSTOMER.ACCOUNT,SALES.ACCOUNT
003 IS "" END
When OUTPUT=LP, the list is printed on the QSLIST device. When
OUTPUT=TERM, the list is printed on the terminal.
>D FINDCH,2
PROCEDURE: FINCH
002 CUSTOMER.ACCOUNT,SALES.ACCOUNT
003 IS "" END
A single line or a range of lines can be displayed.