JPH0337718A - Syntax check system for job control language - Google Patents

Abstract

PURPOSE:To immediately find the syntax error of a job control language JCL or a command language CL by executing the check of syntax error of the JCL and the CL without executing job. CONSTITUTION:When terminating generation of a JCL and a CL, a user determines whether syntax check should be executed or not on a keyboard 2. When it should be executed, syntax check is executed after the output destination of execution results of a JCL/CL syntax check program 12 is designated. Grammars of the JCL and the CL, parameters of utilities, subcommands, etc., are checked by this syntax check. Thus, the user can find and correct the error of the JCL or the CL without actually executing jobs.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention 1 relates to improvements in a job control language (hereinafter referred to as JCL) and a command language (hereinafter referred to as command language) used in a computer system. .

[Conventional technology]

FIG. 3 is a schematic diagram of a method for checking the syntax of JCL and CL. In the figure, (1) is the display, (2)
is the keyboard, (3) is the terminal control unit, (4) is the buffer, (5) is the central processing unit (CPU), (61 is the screen editing program, (7) is the reading/interpretation program, (
8) is a job queue, (9) is a start/end program,
Message is various programs (utility, user program, etc.), and OD is an auxiliary storage device.

Next, the operation will be explained. User uses keyboard (2)
When you enter the job submission command using .

The JCL or CL of the buffer (4) of the auxiliary memory bag wOD or the screen editing program (6) is read/interpreted by the reading/interpretation program (
7). Reading/interpretation program (7)
The CL and the contents of the CL are analyzed and the information is entered into the job queue (8). While in the job queue (8).

The job is placed on hold (not executed). Job execution uses the information in the job queue (8) to start/end the program (9).
) is started by reading. This start/end program (9) points out errors in the JCL and CL syntax. Further, after the start/end program (9) allocates input/output devices and passes control to various programs (utility, user program, etc.) αO, a parameter check of the utility is performed.

[Problem to be solved by the invention]

Conventional errors in JCL and CL syntax were pointed out during job execution. Therefore, syntax checks before execution of JCL and CL could only be done on paper. Furthermore, when there are many jobs in the job queue, the job has to wait for a long time until it is executed, so even if there is an error in the JCL or CL, it is not immediately obvious.

This invention was made in order to solve the above-mentioned problems, and it is possible to immediately discover errors in the syntax of JCL and CL, and also to prevent problems in subsequent work that may occur due to syntax errors. purpose.

[Means to solve the problem]

This invention is designed to check the syntax of JCL and CL without actually executing a job.

[For production]

The syntax checking function of this invention is performed without actually executing a job.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a schematic diagram of a method for checking the syntax of JCL and CL without actually executing a job. In the figure,
(1) is the display, (2) is the keyboard, (3) is the terminal control unit, (4) is the buffer, (5) is the central processing unit (CPU), (61 is the screen collection program, (7) is the reader /interpreter, (8) is job queue, (9)
00) is a start/end program, 00) is various programs (utilities, user programs, etc.), 01) is an auxiliary storage device, and (Lll, 1tJCL/CL syntax check program).

A flowchart is shown in FIG. Users are JCL and CL
After completing the creation, input whether or not to perform a syntax check using the keyboard (2) in FIG.

(Steps (21), (22)) When performing a syntax check (after specifying the output light of the execution result of the JCL/CL syntax check/program (to) shown in Figure 1) (step (233), perform a syntax check. (Step (2)
4)) The contents of the m-sentence check are as follows.

(11 Checking the syntax of JcL and CL (2) Checking utility parameters and subcommands (3) Others In the above example, the syntax checking function is performed from the TSS terminal, but patch processing can also be performed. You can do whatever you want.

〔Effect of the invention〕

As described above, according to this invention, users can
Errors can be found and corrected without actually executing the job, which has the effect of making subsequent work more efficient.

[Brief explanation of drawings]

FIG. 1 shows a JCL according to an embodiment of the present invention. FIG. 2 is a block diagram of a method for checking the syntax of CL without actually executing a job, FIG. 2 is a flowchart thereof, and FIG. 3 is a block diagram of a conventional syntax check method. In the figure, (1) is the display, (2) is the keyboard, (3) is the terminal controller, (4) is the buffer, and (5)
is a central processing unit (CPU), and (II) is an auxiliary storage device. In addition. In the figure. The same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] A job control language syntax checking method characterized by checking the syntax of a job control language and a command language without executing a job.