JPH04165533A - Data information offering device - Google Patents

Abstract

PURPOSE:To simply and quickly obtain the derived information and to improve the efficiency of a programming work and the quality by generating an information table in which information related to a variable is registered by analyzing a source program, and retrieving the information table, when an offer of variable information is requested from a user. CONSTITUTION:At the time of generating a variable information table 6, a code analyzing part 7 reads in a source program from a source file 4, analyzes it and generates information related to a variable in accordance with grammar of program language. Subsequently, in the case it is desired to receive an information offer related to a variable, when a variable on the source program is outputted to an information retrieving part 8 through a control/interface part 5 from an input device 3, the information retrieving part 8 specifies an information block by following an effective information pointer of a variable block whose variable name coincides. Next, information related to the variable registered in its information block is displayed on a screen of a display device 2. In such a way, the information related to the variable can be obtained simply and quickly, and the efficiency of a programming work and the quality can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a data information providing device used when performing tasks such as software coding, depacking, and maintenance.

(Prior Art) In recent years, as programs have become larger and more complex, the types and number of variables (data) used in them have also tended to increase. Under these circumstances, the variable type declaration is in a separate file (
It is often done in packages), modules, etc., or by using variables declared by others.

Therefore, it often happens that the programmer does not know the type or initial value of the variable that the programmer wants to use. In such cases, it would be good if you could immediately check the location (file, module, etc.) of the declaration, but there are usually no clues to find out, so it is usually not possible to check immediately. Furthermore, in languages where the effective range of variables can be limited, it is necessary to always check whether the variable can be used. In any case, if these tasks were performed in parallel with the programming task, it would be very inefficient, leading to a problem of quality deterioration.

(Problem to be Solved by the Invention) As described above, in the past, even if one wanted to know information about variables during work such as software coding, debugging, or maintenance, it was difficult to check this easily and immediately. There was a problem.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide a data information providing device that can easily and quickly obtain information regarding variables, thereby improving the efficiency and quality of programming work. There is.

[Structure of the Invention] (Means for Solving One Problem) In order to achieve the above object, the data information providing device of the present invention includes variable information table creation means for analyzing a source program and creating an information table regarding variables. , an information retrieval means for retrieving information about variables requested by the user based on the information table created by the variable information table creation means; and information display means to provide the information.

(Function) In the data information providing device of the present invention, first, the variable information table creation means analyzes a source program and creates an information table in which information regarding variables is registered. Thereafter, when there is a request from the user to provide variable information, the information search means searches for information regarding the variable based on the information table. The information display means then provides the retrieved information to the user.

Therefore, according to the present invention, information regarding the variables desired by the user can be obtained easily and quickly, thereby improving the efficiency and quality of programming work.

(Example) Hereinafter, details of an example of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of a data information providing apparatus according to an embodiment of the present invention.

As shown in the figure, this data information providing device includes a main unit 1, a display device 2 such as a CRT display or a liquid crystal display, an input device 3 such as a keyboard or a tablet, and a source file 4 in which a source program is stored. The main part is composed of.

The main device 1 also includes a control φ interface unit 5 that controls each part and interfaces with other tools, and a control interface unit 5 that controls each part and interfaces with other tools.
Source file 4 according to instructions from interface unit 5
a code analysis unit 7 that reads and analyzes a source program from the source program and creates a variable information table 6 consisting of variable names, variable type names, initial values, etc. that are information about variables according to the grammar of the programming language from the analysis results; An information search unit 8 searches the variable information table 6 for information regarding a variable for which information provision has been requested by a worker, and displays the searched information on the screen of the display device W2 or sends it to a specific device (for example, a printer). It is composed of a display control section 9 that performs information display control such as output.

FIG. 2 is a diagram showing the structure of the variable information table 6. Note that this variable information table 6 is created for each source program in the source file 4.

In the figure, 210 is a control block;
This control block 210 consists of the name of each module in the source program and a pointer P1 to the module control block of that module. The module control block 220 also includes a pointer P2 to the first variable block 231 of variables declared and defined in the module, and a pointer P3 to the next variable block 232 in which information can be registered. Furthermore, each variable block 231 to 234 has its own (variable) name (variable name) and the first information block 2.
It consists of a pointer P4 to 41.242.243, a pointer P5 to the next variable block, and a pointer (valid information pointer) P6 to the currently valid information block 241.243.244. The information blocks 241 to 244 are made up of information such as variable types and initial values, and a pointer P7 to the next information block 244 (if there are multiple information blocks).

Next, the operation of this data information providing device will be explained.

In creating the variable information table 6, the code analysis unit 7 first reads the source program from the source file 4, analyzes it, and uses the results to extract information about variables, such as variable names and type names of the variables, according to the grammar of the programming language. and create information such as initial values. Then, refer to the module control block connected to the pointer corresponding to the corresponding module name in the control block, trace the "pointer to the next variable block where information can be registered" registered here, and write the variable name there. .

Furthermore, the code analysis unit 7 writes information regarding the variable into an information block, connects the variable block and this information block with a pointer, and also writes the "pointer to the next variable block in which information can be registered" in the module control block. Update.

Furthermore, when a new declaration or definition is made for an existing variable, the code analysis unit 7 writes information regarding that variable in another information block, and connects this to the previous information block using a pointer.

Then, the effective information pointer of the variable block is assigned to the information block in which the instruction was written. Also, when the effective range of a variable changes during the process, the effective information pointer is changed to the previous information block.

The variable information table 6 is created as described above.

After that, if you want to receive information about variables during coding, debugging, maintenance, etc., specify the variables in the source program on the screen of the display device 2, for example, and input instructions for providing variable information from the input device 3. The information is sent to the information retrieval section 8 through the control/interface section 5. Then, the information search unit 8 searches the variable name in each variable block and the variable name for which information is to be provided, in order from the first variable block specified in the module control block of the corresponding module name in the variable information table 6. are compared, and the valid information pointer of the variable block with the matching variable name is followed to identify the information block. Then, information regarding the variables registered in that information block is displayed on the display device 2.
displayed on the screen and provided to the worker.

For example, if you are coding a source program like the one shown in Figure 3 and want to know the type of the variable "C" in line P in the diagram, you can search for information by specifying the variable. The unit 8 searches the variable information table 6 for information on the variable and displays the search results in the control unit 9.
It is displayed on the screen of the display device 2 through.

In addition, if data declaration/definition is subsequently performed in coding after line P, the code analysis unit 7 analyzes the input code, registers the result in a new information block of the variable information table 6, and The effective information pointer of the block is replaced. Further, when a valid range dividing line such as the Q line is input, the valid information pointer of the variable block is replaced with the previous information block.

In addition, when the data declaration conflict definition is performed by returning to the point before line P, the code analysis unit 7 attaches a valid information pointer to the information block if there is only one information block for the specified variable, and if there is more than one reads the source program, analyzes it, and updates the valid information pointer in the same way as when creating a new program.

If data declarations/definitions are added or deleted during the process, the entire information block is updated.

Thus, according to the data information providing device of this embodiment, it is possible to easily check the type and initial value of a variable, or whether or not the variable can be used during software coding, debugging, or maintenance work. Improvements in productivity and quality can be expected.

[Effects of the Invention] As explained above, according to the data information providing device of the present invention, information regarding variables can be easily and quickly obtained during coding, debugging, or maintenance work.
This can be expected to improve the efficiency and quality of programming work.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a data information providing device according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of the configuration of the variable information table in FIG. 1, and FIG. It is a figure which shows an example. 1...Data information providing device main unit 2...Display device 3...Input device 4...Source file 5...Control interface section 6...Variable information table 7...Code analysis Part 8...Information search part 9...Display control part Applicant: Toshiba Corporation Patent attorney Satoshi Suyama - Figure 1 Control block Figure 2 Figure 3

Claims (1)

[Claims] Variable information table creation means for creating an information table regarding variables by analyzing a source program; 1. A data information providing device comprising: an information retrieval means for retrieving information about variables; and an information display means for providing a user with information retrieved by the information retrieval means.