JPH0490026A - Processing flow chart editing device - Google Patents

Abstract

PURPOSE:To change only a limited part to cope with the change of an object language by separating a part dependent upon a programming language from a part independent of it. CONSTITUTION:A language dependent information management means 15 manages language dependent information required for editing of a processing flow chart. A language dependent information taking-out means 13 inquires of the language dependent information management means 15 to take out language dependent information required for editing of the processing flow chart. A processing flow chart editing means 12 edits the processing flow chart based on language dependent information obtained through the language dependent information taking-out means 13. Only the language dependent information management means 15 is changed to change a processing flow chart editing device in accordance with a different object language in this manner. Thus, this device can cope with the change of the object language with a low cost and a small labor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a process flow diagram editing device for editing a process flow diagram that shows the process flow of a program and expresses the control structure of the program.

[Conventional technology]

Process flow diagrams are widely used in program design and maintenance. As a processing flow diagram, for example, SPD
(Structured Programming
Diagram) and HCP (Hierarchy)
cal and Compact disc
tion chart).

FIG. 5 is a diagram showing control symbols in an example of SPD, which is one of the processing flow diagrams that support structured programming. As shown in FIG. 5, in the SPD, the control structure is represented by simple vertical and horizontal lines and simple symbols.

There is a process flow diagram editing device that realizes a support function for editing (including creating) such a process flow diagram. The processing flow diagram edited by the processing flow diagram editing device is printed using a processing flow diagram printing device, or converted into a programming language using a program generation device, and is used for program development (design, maintenance, manufacturing, etc.). ) is used in

Originally, most process flow diagrams were described using notations independent of programming languages, but
In the case of a processing flow diagram edited by a processing flow diagram editing device and used in the manner described above, programming language-dependent notations may be introduced or programming language-dependent structure checks may be performed. It is becoming common.

An example of a notation that depends on the programming language is a notation regarding keywords to express the structure more clearly. For example, regarding keywords to express multi-branched structures, in the programming language C0BOL,
CASE is used as the keyword of the conditional statement, OF is used as the keyword of the branch destination when the states match, and 0THER is used as the keyword of the branch destination when there is no matching state. On the other hand, in the programming language C, S W I is used as a keyword in a conditional statement.
TCH is used, CASE is used as the branch destination keyword when the states match, and DEFAULT is used as the branch destination keyword when there is no matching state.

An example of a structure check that depends on the programming language is a check for constraints regarding the appearance position of the procedure division. For example, in a two-branch structure in programming language C, a procedure division is used in which the keyword of the conditional statement is (F) and the keyword THEN is the branch destination when the states match, and the keyword ELSE is the branch destination when the states do not match. , THEN and ELSE must appear in this order, and ELSE can be omitted, but there is a restriction that there cannot be an ELSE without THEN. Structure checks such as checking for these restrictions depend on the programming language. It becomes what it is.

Here, we will add an explanation about the structure check.

In general, when editing a processing flow diagram, the editing type indicates the editing content such as insertion or deletion, the template type (template name) indicates the type of template that represents the processing content on the processing flow diagram, and the position on the processing flow diagram. This is done by specifying three types of information, including the editing position, which indicates whether the editing is to be performed. When these pieces of information are specified, a structure check is performed to check whether the edited structure is correct in order to check whether the structure of the processing flow diagram will be destroyed by editing. Actual editing processing is performed only when the structure check determines that the edited structure is correct.

FIG. 6 is a flowchart showing structure checking and editing processing performed by an example of a conventional processing flowchart editing device.

As mentioned above, the processing flow diagram edited by the processing flow diagram editing device depends on the programming language, so the structure check and actual editing processing in the processing flow diagram editing device depend on the programming language. .

In a conventional processing flow diagram editing device, such programming language-dependent processing is described in a distributed manner in each part of the software for realizing the processing flow diagram editing device.

[Problem to be solved by the invention]

In the conventional processing flow diagram editing device described above, processing that depends on the programming language is described in a distributed manner in each part of the software for realizing the processing flow diagram editing device. When changing the target programming language (hereinafter referred to as the target language), it becomes necessary to change the entire software for realizing the processing flow diagram editing device, and the disadvantage is that the cost and labor of the change becomes large. There is.

In view of the above-mentioned points, an object of the present invention is to separate parts that depend on a programming language from parts that do not depend on a programming language, so that even when changing the target language, it is possible to cope with the change by only modifying a limited part. An object of the present invention is to provide a processing flow diagram editing device that can perform the following steps.

[Means to solve the problem]

The processing flow diagram editing device of the present invention includes a language dependent information management means for managing language dependent information required when editing a processing flow diagram, and a processing flow diagram that can be edited by making an inquiry to this language dependent information management means. The language-dependent information retrieving means extracts language-dependent information necessary for editing the language-dependent information, and the processing flow diagram editing means edits the processing flow diagram based on the language-dependent information acquired through the language-dependent information retrieving means.

[Effect]

In the processing flow diagram editing device of the present invention, the language dependent information management means manages the language dependent information required when editing the processing flow diagram, and the language dependent information retrieval means makes inquiries to the language dependent information management means. By doing so, the language dependent information necessary for editing the processing flow diagram is extracted, and the processing flow diagram editing means edits the processing flow diagram based on the language dependent information acquired via the language dependent information retrieving means.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the processing flow diagram editing device of the present invention. The processing flow diagram editing device of this embodiment includes a language independent section 11 that does not depend on the target language;
It is configured to include a language dependent section 14 that depends on the target language.

The language independent section 11 includes a processing flow diagram editing means 12 that performs structure checking and actual editing processing, and a language dependent section 14.
Language-dependent information managed by (information dependent on the target language required for structure checks and actual editing processing, etc.)
language-dependent information retrieval means 13 for retrieving the language-dependent information.

The language dependent unit 14 is configured to include a language dependent information management means 15 that stores and manages language dependent information that is information specific to the target language.

FIG. 2 is a flowchart showing the processing of the processing flowchart editing means 12. This process uses the template ID (IDen
tif 1cation) acquisition step 21, structure check procedure acquisition step 22, structure check step 23, editing information acquisition step 24, editing processing step 25, and error processing step 26.

FIG. 3 shows the template ID, l!, performed by the language dependent information retrieval means 13. : is a flowchart showing the process of extracting the structure check procedure from the edit type. This process includes a maximum value setting step 31 and an i setting step 32.
, 1 judgment step 33, error processing step 34, i-th content extraction step 35, template I
It consists of a D determination step 36, an 1tJO calculation step 37, and a structure check procedure return step 38.

FIG. 4 is a diagram showing an example of language dependent information managed by the language dependent information management means 15 when programming language C is the target language. This language-dependent information is managed by a table, and this table has the same number of rows (indexes) as the number of templates. Each row stores a template name, template ID, structure check procedure, editing information (information necessary for editing indicating shape, etc.).

As methods for managing such language-dependent information, in addition to methods using tables, there are methods using, for example, list structures or tree structures.

The template salt is an external name used by an operator using the processing flow diagram editing device to specify the type of template, and is presented in the form of a command or menu, for example. The template salt does not necessarily have to be a character string, and may be information such as a graphic to be displayed on a menu.

On the other hand, the template ID has an internal one-to-one correspondence with the template salt, and is usually assigned continuous integer values or the like to facilitate internal processing. The template salt and template ID may be the same as long as the template ID is sufficiently easy to understand for the operator, but generally they are different.

There are various methods for holding structure check procedures as data, but for example, there is a method of holding pointers to programs (procedures) for performing each structure check (this method is often used, and in this example, (This method shall also be used.)

As can be seen from the editing information in FIG. 4, it is assumed that the processing flow diagram to be edited in this embodiment is SPD.

Next, the operation of the processing flow diagram editing apparatus of this embodiment configured as described above will be explained.

When editing a processing flow diagram, three types of information are given: editing type, template salt, and editing position.

After determining the editing content (insertion, deletion, etc.) to be performed from the editing types among the three types of information mentioned above, the processing flow diagram editing means 12 in the language independent section 11 performs the following processing (first (See Figure 2).

Using the language-dependent information retrieval means 13, an internal template ID managed by the language-dependent information management means 15 is obtained based on the template salts among the three types of information mentioned above (step 21).

Next, in order to perform a structure check after editing, a structure check procedure for performing a predetermined structure check is sent from the language dependent information management means 15 via the language dependent information retrieval means 13 using the template ID and the editing type as keys. Obtain (step 22).

Using this structure check procedure, a structure check is performed (in the structure check, the edit position among the three types of information mentioned above is used), and it is determined whether the structure is correct after editing (step 23).

When the structure check shows that the edited structure is correct, the template ID is used to perform the actual editing process.
Language-dependent information retrieval means 1 using and editing type as keys
The editing information necessary for the predetermined editing process is acquired from the language-dependent information management means 15 via step 3 (step 24), and the editing information is used to perform the actual editing process (the editing process uses information on the editing position. ) (Step 25).

If the structure check in step 23 reveals that the edited structure is incorrect, error processing such as displaying an error message is performed (step 26).

The language-dependent information retrieval means I3 in the language-independent section 11 includes:
Provides the following functions.

(2) Acquire the template ID corresponding to the template salt given from the processing flow diagram editing means 12 from the language dependent information management means 15 and return it to the processing flow diagram editing means 12;

(2) A structure check procedure corresponding to the template ID and editing type given from the processing flow diagram editing means 12 is acquired from the language dependent information management means 15 and returned to the processing flow diagram editing means 12.

■ Editing information corresponding to the template ID and editing type given from the processing flow diagram editing means 12 is acquired from the language dependent information management means 15, and the processing flow diagram editing means 1
Return to 2.

These three functions are realized by processing using almost the same algorithm. Therefore, on behalf of the three functions, ■
Only the processing will be explained below.

The language dependent information inquiry means 13 performs the following processing for the above-mentioned process (2) (see FIG. 3).

First, the language dependent information management means 15 is inquired about the number of templates being managed, and the number is set as the maximum value (step 31).

Next, set the value of counter i to 1 (step 32),
It is determined whether the value of counter i is less than or equal to the maximum value (step 33).

If the value of counter j is greater than the maximum value, error handling is performed (step 34).

If the value of the counter i is less than or equal to the maximum value, step 35) of extracting the i-th content (line) in the language dependent information managed by the language dependent information management means 15, the template ID in that line is It is determined whether it is equal to the designated template ■D (template ID given from the processing flow diagram editing means 12) (step 36).

If it is determined in step 36 that the two are different, 1 is added to the value of counter 1 (step 37), and step 3
Control is returned to judgment 3.

If it is determined in step 36 that the two are equal, the structure check procedure corresponding to the specified editing type (editing type given from the processing flow diagram editing means 12) is executed in step 35.
The structure check procedure is searched among the lines extracted in step 38 and returned to the processing flow diagram editing means 12 (step 38).

The language dependent information management means 15 in the language dependent section 14 manages language dependent information for each template, as described above.
In this embodiment, this language-dependent information is managed as a table as shown in FIG. 4 (a table in which a row is provided for each template), and provides the following functions.

■ In response to an inquiry from the language-dependent information retrieval means 13, the number of managed templates (size of table) is returned.

■ The information on the line specified by the inquiry from the language-dependent information retrieval means 13 (language-dependent information of one line sentence; information corresponding to the "i-th content" retrieved in step 35 in FIG. 3) is used as language-dependent information. It is returned to the take-out means 13.

〔Effect of the invention〕

As explained above, the present invention enables the processing flow diagram editing device to be changed to correspond to a different target language by changing only the language-dependent information management means, thereby making it different from the conventional processing flow diagram editing device. This has the effect of making it possible to change the target language with relatively little cost and effort.

Also, when changing the function of the processing flow diagram editing means,
Another effect is that the changes can be reflected in processing flow diagram editing devices for multiple target languages with less cost and effort.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a flowchart showing the processing of the processing flow diagram editing means in FIG. 1, and FIG. 3 is a language-dependent information retrieval diagram in FIG. Flowchart showing the processing of the means; FIG. 4 is a diagram showing an example of language dependent information managed by the language dependent information management means in FIG. 1; Part 5 is a diagram showing control symbols in an example of SPD; FIG. 6 is a flowchart showing the processing of an example of a conventional processing flowchart editing device. In the figure, 11...Language independent part, 12...Processing flow diagram editing means, 13...Language dependent information retrieval means, 14...Language dependent part, 15...Language dependent information management means . Figure 2

Claims (1)

[Claims] Language-dependent information management means for managing language-dependent information required when editing a processing flow diagram; The present invention is characterized by comprising a language-dependent information retrieval means for retrieving language-dependent information, and a processing flow diagram editing means for editing a processing flow diagram based on the language-dependent information acquired through the language-dependent information retrieval means. Processing flow diagram editing device.