JPH04127232A - Program connection processor - Google Patents

Abstract

PURPOSE:To facilitate the connection between two programs transformed into parts by permuting the file input/output sentence with a proper PERFORM sentence for the source programs of both parts and prepositioning a pre-program of a prescribed form to be carried out by the PERFORM sentence to each source program. CONSTITUTION:At a code generating part 2, the pre-programs are connected to the two source programs 1a and 1b respectively. Then, a GO TO sentence of the preprogram of each source program designates a CONTINUE sentence of the other pre-program as a sentence to be carried out next. A code converting part 3 permutes the input/output sentence prepared to a prescribed file for both source programs with each PERFORM sentence. This PERFORM sentence designates the pre-program of the source program as an executing range. A connection part 4 connects both source programs processed by the part 3 to each other and turns them into a unified source program 5. Thus, it is possible to easily connect together two source programs into a single necessary program.

Description

[Detailed Description of the Invention] [Summary] This invention relates to processing for generating a required program by combining source programs prepared as parts.
Combine programs without creating a special program.
The purpose of this system is to provide a program combining processing device that can be used relatively easily when combining two source programs written in the COBOL programming language. The code generation unit connects a prefix program of a predetermined format in front of both the source programs, and the 0010 statement of the prefix program of each source program follows the C0NTINUE statement of the other prefix program. The code converter replaces each input/output statement for a predetermined file of both source programs with a PERFORM statement, and
The statement specifies the prefix program of the source program as an execution range, and the combining section is configured to combine the two source programs processed by the code conversion section and change them into an integrated source program.

[Industrial application field]

The present invention relates to a program combination processing device that performs processing to generate a desired program by combining source programs prepared as components, particularly source programs written in the COBOL language.

[Problems to be solved by conventional technology and the invention] The key to program development is to prepare programs written to execute various functions as parts, and to create a program by collecting parts with the necessary functions. It is designed to save labor.

In this case, if individual parts are prepared as so-called subroutines, it is necessary to create at least a main routine in order to use them.

Therefore, in order to make each part an independent program and exchange the necessary information between parts, we use the system's message communication function to pass information through message files, or we divide each part into so-called job steps. It is possible to execute job steps sequentially and send and receive information using files between job steps, but it is necessary to support the message communication function unique to each operating system, which makes it difficult to generalize parts and requires files to be used as intermediaries. There are resource and performance issues to do so.

An object of the present invention is to provide a program combination processing device that can relatively easily combine two programs made into components without creating a special program.

[Means to solve the problem]

FIG. 1 is a block diagram showing the configuration of the present invention.

The figure shows the configuration of a program combination processing device, which is written in the COBOL programming language and is intended to be a program combination processing device that can relatively easily combine two componentized programs without creating a special program. When combining the two source programs 1a and 1b, a code generation section 2, a code conversion section 3, and a combination section 4 are provided.
A prefix program of a predetermined format is connected before a and 1b, and the Go of the prefix program of each source program is connected.
70 statements are the CON of the other prefix program.
The TINUE statement is configured to be specified as the next statement to be executed, and the code conversion unit 3 converts the input/output statements for the predetermined files of both source programs into PERFORM.
The PERFORM statement specifies the prefix program of the source program as the execution range, and the combining unit 4 combines both source programs processed by the code conversion unit 3 and changes them into an integrated source program 5. do.

[For production]

By using the program combination processing device of the present invention, for example, a two-part source program that exchanges information between job steps using a predetermined transfer file can be created by converting input/output statements for inputting and outputting to that file into an appropriate PERFORM.
COBOL PERF
By using the return mechanism of the ORM statement, it is possible to create a program in which control is alternately transferred to both programs at each step of the original input/output statement. Therefore,
If you use the same area name for the area of data written to the file in one original program and the area for reading data from that file in the other program, you can automatically write the data to the file without creating any special program. It can be converted and combined into a single source program that directly exchanges information.

Naturally, the source programs that have been combined in this way can be further combined in the same manner as other source programs.

[Example] The code generation unit 2 shown in FIG. 1 includes source programs 1a and lb written in the COBOL language as shown in FIG. ), prefix programs 10a and 1
0b is generated and inserted before each source program to form source programs lla and llb.

Each prefix program 10a, iob is Go 70 statement and C
It is a fixed format consisting of 0NTINUE statements, and as shown in the figure, each Go70 statement is a C
Specify the 0NTINUE statement as the destination.

The code generation unit 2 generates these source programs lla and 11b.
is passed to the code conversion unit 3, the code conversion unit 3 scans the source program, searches for input/output statements that perform input/output to a predetermined file, that is, WRITE and READ statements, and converts these input/output statements. PERF that executes the prefix program 10a or lOb of each program as shown in the figure.
Replace with ORME statement. In addition, in the figure, r (WR
ITE)→'' etc. are written for explanation purposes and indicate the sentence before replacement.

At this time, the code conversion unit 3 converts the 0PEN that is processing the file that is the input/output target of the input/output
and CLO3E statements are also changed; for example, they are all replaced with a C0NT INUE statement that has no effective processing operation.

The coupling unit 4 is the source program ll that has completed the above processing.
a and llb are connected and output as an integrated source program 5. In this case, for example, the procedure section of the program may be placed after the source program lla in FIG.
lb, and one source program l
If there is a 5TOP statement as shown in the figure, this is replaced with, for example, a prefix program line <Go 70 statement so that the program returns from the last executable statement of lb to the source program lla and ends.

The source program 5 integrated as described above will be executed as follows. That is, referring to FIGS. 2 and 3, assuming that execution starts from the statement labeled AAX, rGOTo BBY.

By executing , it goes to label BBY and rcONTINU
EJ is executed, and therefore the instructions are executed sequentially downward.

In this way, going to the label BBZ, rPERFORM BB X T replaced as above
HRU B B YJ is executed. Here PERF
When an ORM statement finishes executing, its PERFO
Since the program is controlled to return to the next statement after the RM statement, in this case, when the program from label BBX is executed up to label BBY, the return information is set so that the program branches to the next label BBZOPERFORM statement.

In reality, since the label BBX is a Go70 statement, the program jumps to the original label AAY of the other program according to that statement, and the C0NTINUE and subsequent statements are executed sequentially, and then the Go70 statement is executed.
If you go to Z, the replaced rPERFORM A
AX THRU AAYJ is executed, the return information is set as in the previous case, and rho To
BBY returns to label BBY. Therefore, the execution of the PERFORM statement at label BBZ is finished, and control shifts to execution of the next statement at label BBZ.

In the above, since label AAZ originally had a WRITE statement for writing information to a predetermined file, the data to be written should have been prepared in the storage area in the program up to that point. Also, the label BBZ originally contains READ for reading information from a specified file.
Since there was a statement, the subsequent program should perform a process to refer to the data read into the storage area.
It is clear that information can be exchanged by matching the two storage areas.

In this way, 5TO is executed on the original source program execution example side.
When processing is completed up to the P sentence, the replaced Go 70
The statement goes to label BBX and therefore to label AAY, where the return information returns PERFO of label AAZ.
Control is returned to the statement following the RM statement.

[Effects of the Invention] As is clear from the above description, according to the present invention, it is possible to generate a required program by combining two source programs prepared as parts without creating a special program. This has become relatively easy and has a significant industrial effect of increasing the usability of componentization programs.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a diagram illustrating an example of a program, and FIG. 3 is a diagram illustrating an example of program execution. In the figure, 1a, 1b, 5, lla, and Ilb are source programs, and 2
3 is a code generation section; 3 is a code conversion section; 4 is a coupling section; 10a and 10b are prefix programs; FIG. 2 is a block diagram showing the configuration of the present invention.

Claims (1)

[Claims] 2 written in the COBOL programming language
When combining two source programs (1a, 1b), a code generation section (2), a code conversion section (3), and a combination section (4) are provided, and the code generation section (2) A prefix program of a predetermined format is connected before each source program, so that the GOTO statement of the prefix program of each source program specifies the CONTINUE statement of the other prefix program as the next statement to be executed. The code converter (3) converts the input/output statements for the predetermined files of both source programs into PERFORM.
The PERFORM statement specifies the prefix program of the source program as the execution range, and the combining section (4) combines the two source programs processed by the code conversion section to create a single source program. (5) A program combination processing device characterized by being configured to change.