JPH05324343A - Program conversion system - Google Patents

Abstract

PURPOSE:To improve the productivity and the quality of a conversion work by detecting the respective items of the program source of a conversion object by analyzing the difference of the expression type from the program source and data before/after conversion and converting another program source and data through their relating information. CONSTITUTION:The program source and data which are converted into a desired type are given from a converted program file 1 for a conversion information preparation device 4 and simultaneously the program source and data of conversion object are given from a preconversion program file 2 for the conversion information preparation device 4, which analyzes the difference of two program sources and data to generate correlating information to store it in a conversion information data file 6. Next, the program source of the conversion object is read to give it for a program converter 9 and the program source and data with different expression type are converted into the specification of different type.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program converting system for converting a program, and more particularly to converting a program source and data having different expression formats into a program source and data having a certain specification in an information processing system. It relates to a program conversion system.

[0002]

2. Description of the Related Art Conventionally, when converting a program source and data having different expression formats into a program source and data having a certain expression format, the differences between the objects to be converted are extracted and the conversion is performed from the differences. The regularity is found, a conversion program is created, and the conversion process is executed by the conversion program. In this case, further, the portion that could not be converted by the conversion program is converted by the conversion program and then manually converted by hand.

Regarding this kind of program conversion method,
For example, a programming language automatic conversion method disclosed in Japanese Patent Laid-Open No. 64-31233 is known. This automatic programming language conversion method is expressed by a grammar that does not necessarily correspond one-to-one, as in the case of converting a program written in a low-level language into a high-level language program.
The present invention relates to an automatic conversion method for two programming languages, in which a conversion target sentence of a first language expressed by a grammar that does not correspond one-to-one is extracted from at least one of forward and backward sentences. The method is classified by using specific information and converted into a corresponding second language program sentence having the same content.

[0004]

By the way, in the above-mentioned conventional programming language automatic conversion method, only the method for extracting the difference in the expression form of the program source and the data and extracting the regularity of the conversion, Although it can be programmed and can be automatically converted, if it is not possible to extract the regularity, manual conversion processing is required.

Therefore, when converting a large amount of program sources and data, it takes time to extract the regularity of conversion and program the conversion, and the amount of manual conversion work becomes enormous, resulting in high productivity in the conversion process. descend. Moreover, the manual conversion process has a problem in terms of quality.

The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a program source having a different representation format and a program source having a certain specification in an information processing system. Another object of the present invention is to provide a program conversion system capable of efficiently performing a process of converting data and data, improving the productivity of the conversion work, and improving the quality of the converted product.

[0007]

In order to achieve the above object, the program conversion system of the present invention is a program conversion system for converting program sources and data having different expression formats into program source and data specifications of a desired format. And the related information created by the conversion information creating means for analyzing the difference between the program source and the data of the desired expression format and the program source and the data of the expression format to be converted and creating the related information. And a program conversion processing means for converting data based on the expression format of the conversion target and data.

[0008]

In the program conversion system of the present invention, conversion information creating means and program conversion processing means are provided. When the difference between the program source and data of the expression format intended by the conversion information creating means and the program source and data of the expression format of the conversion target is analyzed and related information is created, the program conversion processing means creates the conversion information creating means. A conversion process for converting the program source and data of the expression format to be converted is performed based on the related information created by.

As described above, in the program conversion system of the present invention, the regularity is not manually extracted from the difference in the expression form to make it into a program, but each item of the program source to be converted is selected. A process that analyzes and detects the difference in expression format from the program source and data before and after conversion, stores the related information in a file, and uses the stored related information to convert other similar program sources and data I do. Thereby, the productivity in the conversion work is improved, and the quality of the generated conversion product is improved.

That is, in the program conversion system of the present invention, first, in order to create the related information that gives the basic conversion guideline, the program source and data in the desired format or the converted program source and data and the pre-conversion Prepare the program source and data of. These two program sources and data are input to the conversion system, the difference is analyzed, and the correlation related information is stored in a file. In the conversion process from the next time, the process is performed by using the correlation related information file accumulated last time. In addition, when the converted source and data after conversion created by this conversion process are manually modified, the related information related to the conversion is further stored in the previously created related information file. It is used for the conversion process of.

In the program conversion system here, the program source and data before and after conversion are input, and the relation information relating to the correlation is stored and accumulated in a file.
The keyword or conversion pattern of the item to be converted is recorded, and the conversion method and conversion content are stored. As a result, the related information that defines the accumulated correlation enables conversion processing of program sources and data that require other equivalent conversions, and facilitates conversion of program sources and data with equivalent representation formats. It can be done by operation.

In the file of the relation information defining the correlation, not only the correlation is generated from the information before and after the conversion inputted to the program conversion system, but also the conversion information already known can be given from the outside. .. It is also possible to input a plurality of program sources and data before and after conversion and to store and accumulate only common conversion items in a file of relation information defining correlation.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the overall system configuration of a program conversion system according to an embodiment of the present invention. In FIG. 1, 1 is a converted program file in which a source program and data having a desired expression format are stored, 2 is a pre-conversion program file in which a conversion target program is stored, 3 is an input device,
Reference numeral 4 is a conversion information creating device, 5 is an output device, and 6 is a conversion information data file for storing conversion information defining a correlation. Further, 8 is an input device, 9 is a program conversion device,
Reference numeral 10 is an output device, and 11 is a converted program file in which a program whose expression format has been converted is stored.

The operation of this program conversion system will be briefly described. First, in order to create related information that gives a guideline for conversion of an underlying expression format, a program source and data in a desired format or an already desired format are created. The converted program source and data are given from the already-converted program file 1 to the conversion information creating device 4 via the input device 3, and at the same time, the converted program source and the conversion target program source corresponding to the data and Data is given from the pre-conversion program file 2 to the conversion information creating device 4 via the input device 3. As a result, the conversion information creating device 4 analyzes the difference from the given two program sources and data, generates correlation relationship information, and outputs it via the output device 5, as will be described later. The converted information is output and stored as conversion information in the conversion information data file 6.

Next, when the program source to be converted is read from the pre-conversion program data file 2 and given to the program converting device 9 via the input device 8, the program converting device 9 is stored in the conversion information data file 6. The conversion information data is used to convert the program sources and data having different expression formats into the specifications of the program source and data of the desired format. In the conversion process executed by the program conversion device 9,
A conversion process is performed using the conversion information data of the conversion information data file 6 created in the previous stage. In the file of the related information accumulated as the conversion information here, the keyword or the conversion pattern of the item to be converted is recorded, and the conversion method and the conversion content are stored. Depending on the contents, conversion processing of the program source and data to be converted is performed. Further, according to the conversion information data of the related information defining the accumulated correlation, the conversion processing of the program source and the data which requires other equivalent conversion is performed. Next, as a specific example, a conversion processing example in the case of converting a COBOL language source program described in the A specification into a COBOL language source program in the B specification will be described.

FIG. 2 is an explanatory diagram showing an example of processing for converting a COBOL language source program described in the A specification into a COBOL language source program in the B specification. In FIG. 2, the COBOL described in the A specification is on the upper side.
An example of a language source program is shown, and an example of a B specification COBOL language source program is shown on the lower side. COBO in the upper A specification source program 21 and the lower B specification source program 22
The difference in the L language is the attribute definition of the use area in the program (21a, 21b and 22a, 22b), the inter-program area definition (21c and 22c), and the calling sequence (21d and 22d).

FIG. 3 is a block diagram showing in more detail the configuration of the main part of the conversion information creating apparatus for creating the conversion information data. As shown in FIG. 3, the conversion information creation device 4 includes a program comparison processing unit 31, a difference information acquisition processing unit 32, a difference information analysis processing unit 33, and a conversion information generation processing unit 34. With respect to the conversion information creating apparatus 4 including the sub-processing units as described above, the A specification program source (X) 21 from the pre-conversion program file 2 and
When the B-specification program source (X ′) 22 from the already-converted program file 1 is given via the input device 3, the conversion information creating device 4 analyzes the difference between the two program sources and determines the correlation between them. A process of extracting relational information and creating conversion information is performed.

First, the program comparison processing section 31 compares the A specification program source (X) 21 and the B specification program source (X ') 22 and acquires the difference, and then the difference information acquisition processing section. 32 performs difference information acquisition processing for acquiring the change information from the disagreement portion in the comparison processing. Next, the difference information analysis processing unit 33 analyzes the program source in text units from the difference information. That is, the acquired difference information is divided into a data part and a procedure part, the change information is analyzed, and a process of determining a change condition is performed. Next, the conversion information generation processing unit 34 performs processing for creating conversion conditions and conversion information based on the result of the difference information analysis processing, and the conversion method and conversion content for the conversion character string to be converted are for each item content. Is created as the conversion information data record 30 divided into Then, the conversion information data records 30 generated via the output device 5 are sequentially stored in the conversion information data file 6. As the conversion information data record 30 here, for example, the data attribute “COMP” in the A specification program source 21 and “COMMON-” in the inter-program area definition are used.
"STORAGE", "CALL" of the CALL instruction, etc. in the B specification program source 22 are "COMP-3", "LINKAGE", "USRL".
The conversion method and the content of the corresponding conversion character string are generated and accumulated so that the data of the necessary program source is added (see FIG. 4).

FIG. 4 is an explanatory view for explaining a concrete example of the contents of the conversion information of the conversion information data record. The record format of the conversion information data record 41 is as shown in FIG.
Classification field 41a, key / pattern field 41
b, a conversion method field 41c, a pre-conversion character string field 41d, a post-conversion character string field 41e, and a continuation field 41f.
The content data of each item of the conversion method and the conversion content is stored in each field. The other conversion information data records 42 to 47 have the same record format structure,
The content data of each item of each conversion information is stored.

For example, the conversion information data record 41 is
"XX1" specified in the key / pattern field 41b
A character is used as a key to search for a data definition statement that defines the use area attribute in the program, and the conversion content that replaces the character string "COMP" of the data definition statement with the character string "COMP-3" is defined. Therefore, the key / pattern field 41b stores the character string "XX1", and the conversion method field 41c specifies "character string replacement". Then, the character string "COM
P ”is stored, and the character string“ COMP-3 ”is stored in the converted character string field 41e. The continuation field 41f is a field for instructing the continuation of record data when one piece of conversion information data record cannot store conversion information. In the conversion information data record 41 here, since the conversion contents can all be defined by the contents of the fields so far, the continuation field 41f
Is instructed to "none".

The conversion information data record 42, like the conversion information data record 41, is conversion information for instructing the conversion of a data definition statement that defines the in-program use area attribute. Further, the conversion information data record 43 is
This is conversion information for converting the inter-program area definition. Further, the conversion information data records 44 to 47 are conversion information for converting the calling sequence, and the continuation field is set to “present” and the plurality of data records are a series of conversion information. Next, an example of conversion processing when performing conversion processing for converting the expression format of the program source using such conversion information data records will be described.

FIG. 5 is a block diagram showing in more detail the structure of the main part of the program conversion device for performing the conversion process for converting the expression format of the program source. As shown in FIG. 5, the program conversion device 9 is composed of a program analysis processing unit 51, a conversion information search processing unit 52, and a program conversion processing unit 53, and the program conversion device 9 here generates first. Conversion information data file 6
By using the conversion information data record stored in the record format in A, the A specification program source (Y) is changed to the B specification program source (Y ′) as shown in FIG.
Process to convert to.

FIG. 6 is an explanatory diagram showing an example of the result of the process of converting the COBOL language source program described in the A specification into a COBOL language source program in the B specification by using the program conversion device. Referring to FIG. 6, FIG.
The operation of the conversion process in the program conversion device shown in will be described below.

Here, the A specification program source (Y)
Will be described as an example of the process of converting the B specification program source (Y ′). First, from the pre-conversion program file 2 in which the A specification program source (Y) is stored, the A specification program source (Y) to be converted
Input to the program conversion device 9 via the input device 8. When the program source is input, in the program conversion device 9, the program analysis processing unit 51 analyzes the input text of the pre-conversion program source. Next, the conversion information search processing unit 52 refers to the conversion information data file 6 that defines the correlation between the program sources of the A specification and the B specification, and references each of the conversion information data records stored in the conversion information data file. Check whether the conversion item of exists in the program before conversion. That is, it is checked whether or not the information to be subjected to the same conversion exists in the conversion target program. When the conversion information is present, the program conversion processing unit 53 then converts the pre-conversion program source according to the conversion rule, and outputs the conversion result to the post-conversion program file 11 via the output device 10. ..

As a result, the record data of the conversion information data records 41 to 47 as shown in FIG. 4 is used, and as shown in FIG. 6, for example, the data definition 61a of the program source (Y) 61 of the A specification is used. , 61b, an inter-program common area definition 61c, a calling sequence 61d, etc., respectively, a data definition 62a, 62b of a B specification program source (Y ') 62, an inter-program common area definition 62c, a calling sequence 6
2d etc. are converted. As is clear from the above description,
The operator can perform the conversion work of the source program by an easy operation without requiring any special work for converting the program source here.

As described above, in the program conversion system of the present embodiment, the regularity of the difference in the expression form is not manually extracted and programmed, but the program source having the desired expression form (existing From the conversion program source), for each item of the program source to be converted, the difference between the expression formats is analyzed and detected by the program source and the data before and after conversion, and the related information is accumulated in the conversion information data file. .. Then, by using the accumulated related information, the conversion processing of the program source and data, which is another similar conversion, is performed. As a result, the productivity in converting the program source and the data is improved, and the conversion work can be performed without human intervention, so that the quality of the generated conversion product can be improved.

It should be noted that the conversion information data file storing the relationship information defining the correlation here not only generates the correlation from the information before and after the conversion input to the program conversion system, but is already well known. It is also possible to provide the conversion information that has been converted from the outside. Further, it is also possible to input a plurality of program sources and data before and after conversion and store and accumulate only common conversion items in a file of relation information defining correlation.

As a result, by using the record data of the accumulated conversion information data file here, for example, as shown in FIG. 6, the data definitions 61a and 61b of the A specification program source (Y) 61, and Inter-program common area definition 61c and calling sequence 61
The data definition 62 of the program source (Y ′) 62 of the B specification, etc., without any special work.
a, 62b, inter-program common area definition 62c,
It can be converted into a calling sequence 62d or the like by a simple operation.

[0029]

As described above, according to the present invention,
In particular, the conversion processing of the program source and the data can be performed without manually extracting the conversion rules between the program sources and the conversion rules between the data having different expression formats and programming them. In addition, manual conversion work due to omission of regularity can be significantly reduced, and uniform program conversion can be performed. As a result, productivity and quality in the conversion work can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall system configuration of a program conversion system according to an embodiment of the present invention,

FIG. 2 is an explanatory diagram showing an example of a process of converting a COBOL language source program described in A specifications into a COBOL language source program in B specifications;

FIG. 3 is a block diagram showing in more detail a configuration of a main part of a conversion information creating apparatus for creating conversion information data;

FIG. 4 is an explanatory diagram illustrating a specific example of the content of conversion information of a conversion information data record,

FIG. 5 is a block diagram showing in more detail the configuration of the main part of a program conversion device that performs conversion processing for converting the expression format of a program source;

FIG. 6 is an explanatory diagram showing an example of a result of processing for converting a COBOL language source program described in the A specification into a COBOL language source program in the B specification using a program conversion device.

[Explanation of symbols]

 1 ... Already converted program file 2 ... Pre-conversion program file 3 ... Input device 4 ... Conversion information creating device 5 ... Output device 6 ... Conversion information data file 8 ... Input device 9 ... Program conversion device 10 ... Output device 11 ... Post conversion program File 21 ... A specification source program 22 ... B specification source program 30 ... Conversion information data record 31 ... Program comparison processing section 32 ... Difference information acquisition processing section 33 ... Difference information analysis processing section 34 ... Conversion information generation processing section 41-47 ... Conversion information data record 41a ... Classification field 41b ... Key / pattern field 41c ... Conversion method field 41d ... Pre-conversion character string field 41e ... Post-conversion character string field 41f ... Continuation field 51 ... Program analysis processing section 52 ... Conversion information retrieval processing section 53 ... Program Conversion processing unit

Claims (1)

[Claims] 1. A program conversion system for converting program sources and data having different expression formats into specifications of a program source and data of a desired format, the program source and data having a target expression format and the expression format to be converted. Conversion information creating means for analyzing differences between program sources and data and creating related information thereof, and program conversion processing for converting program sources and data of an expression format to be converted based on the related information created by the conversion information creating means. A program conversion system comprising means.