JPH04112380A - Screen reading/editing/displaying system - Google Patents

Abstract

PURPOSE:To facilitate the coding of an application program and to improve the performance by providing a reading/editing/displaying part for editing and displaying input data read from a screen in accordance with a screen defining body, reading the input data in accordance with a read instruction from a data processing part, and editing and displaying it. CONSTITUTION:A read/editing processing part 6 reads data from a screen 7 by a request from an application program 10, refers to a screen defining body 3 and edits the data in accordance with an instruction, when an editing instruction is given, and displays it on the screen 7. In such a way, by executing a batch processing to the editing and display by a format editing processing part 2 with respect to a read instruction, a display instruction is executed continuously by a single read instruction. in such a way, coding of an application program is facilitated, and the performance can be improved.

Description

[Detailed Description of the Invention] [Summary] Regarding a screen reading, editing and displaying method that controls input and output operations on a terminal screen, application programs can be easily coded by sequentially executing display commands with one reading command. For the purpose of improving performance, the format g collection processing section uses a screen definition body that defines the attributes of input and output data to mediate between the data input/output screen and the data processing section. By providing a reading, editing and displaying section that edits and displays the input data according to a screen definition, the input data is read and edited and displayed in response to a reading instruction from the data processing section.

[Industrial application field]

The present invention relates to a screen reading, editing and displaying method for controlling input and output operations on a terminal screen.

[Conventional technology]

Conventionally, data input/output between an application program and an input/output screen has been processed by a format editing program in a 1:1 command correspondence.

The application program requests the format editing processing section to read from the screen, the format editing processing section edits the data read from the screen, passes it to the application program, and when outputting to the screen, the application program formats the data.) The output data is passed to the W collection processing unit, and the format W collection processing unit refers to the screen definition, reads the instructions for display format on the screen, and edits and displays the data according to the instructions. do.

Here, the screen definition is a set of descriptions that define the attributes of each field displayed on the screen of the display device, and is associated with the screen. When the application program uses a screen, it specifies the screen definition and requests processing to the format editing processing unit, so there is no need to describe the screen in the application program, and the screen can be designed independently. It is now possible to do so.

FIG. 4 is a diagram showing the relationship between an application program and a format editing processing section for a conventional screen.

In the figure, 10 is an application program that performs business, 2 is a format editing processing unit that interfaces the input/output screen 7 and the application program IO, 3 is a screen definition body that defines each field of the input/output screen 7, and 4 is input/output 5 is a format that reads the data from the screen 7) W collection processing section; 5 is a format that displays the specified pig on the input/output screen 7; 7 is a display section of the collection processing section; 7 is a screen for inputting and outputting data; It is.

The application program 10 specifies a screen definition and loads the screen definition into memory from the stored file. There are multiple screen definitions in the file,
Ensure that only the one currently in use resides in memory.

The application program 10 specifies a position on the screen and issues a reading command to the format editing processing section 2, and the reading section 4 of the format editing processing section 2 reads the data by referring to the screen definition body 3, and transfers the data to the application program. Send to 10.

In order to display the data, the application program 10 specifies the position again and sends a display command to the format a collection processing unit 2, and then displays the data in the format editing processing unit 2.
send to

The display section 5 of the format editing processing section 2 refers to the screen definition body 3, and if there is an editing instruction, edits the data into that format and displays it on the screen. Editing in this case means, for example, if the data is a monetary amount, a yen symbol "¥" is added to the beginning of the amount, and a comma "," is added after every three digits. The editing format can be freely set using the screen definition body 3.

Since the editing format on the screen can be done independently in this way, creating an application program is facilitated by using a separate screen definition body.

As explained above, the command to read from the screen was conventionally executed separately from the display command, but most of the commands to read from the screen were issued in pairs with the display command, and the read data was displayed and the user The common usage was to check.

[Problem to be solved by the invention]

Even though the read command is issued in pairs with the display command,
Since the application program must issue the command twice, once the read command and the display command, there is a problem in that the effort required to code the program increases and furthermore, processing performance during execution deteriorates.

In view of these points, it is an object of the present invention to provide means for executing a display command following a read command using a - command.

[Means to solve the problem]

The above problem is solved by a screen reading, editing and displaying method configured as follows.

FIG. 1 is a diagram showing the principle of the present invention.

In the format editing processing section 2, which mediates between the data input/output screen 7 and the data processing section 1 using the screen definition program 3 that defines the attributes of the input/output data, the input data read from the screen is processed according to the screen definition program 3. By providing a reading/editing display section 6 for editing and displaying, the input data is read and edited and displayed in response to a reading instruction from the data processing section.

[For production]

The reading, editing and displaying section reads input data from the screen, reads the screen definition, and if there is an editing instruction, edits the input data according to the screen definition and displays it on the screen.

〔Example〕

FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention.

In the figure, 6 is a read/edit/display unit that reads data from the screen according to a request from an application program, refers to the screen definition, and if there is an editing instruction, edits the data according to the instruction and displays it on the screen. be.

Other symbols that are the same as those in FIG. 4 are the same.

In the figure, when an application program reads data from the screen, edits and displays the data, and issues a read, edit and display command by specifying a position on the screen, the command is sent to the format The reading/editing display section 6 is then executed.

This control will be explained using the processing flowchart of the reading/editing/displaying section shown in FIG.

First, in step 70, data in a designated field is read from the screen. This content is the same as reading data from a conventional screen.

Next, in step 71, the screen definition file in the memory is read.

In step 72, it is checked whether there is an editing instruction in the specified field on the screen, and if there is an instruction, the process proceeds to step 73; if not, the process proceeds to end.

In step 73, the data read in step 70 is edited according to the specifications of the screen definition program 3.

The edited data is displayed in the specified field on the screen in step 74, and control is returned to the application program upon completion.

As described above, the format W collection processing unit 2 responds to the read command.
By processing everything up to editing display in one batch,
Increased degree of freedom in creating application programs,
Execution performance is improved.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, by successively executing a display command with a single reading command,
This has a significant industrial effect in that application program coding becomes easier and performance is improved.

[Brief explanation of drawings]

Fig. 1 is a principle diagram of the present invention, Fig. 2 is a block diagram showing the configuration of an embodiment of the present invention, and Fig. 3 is a block diagram showing the configuration of an embodiment of the present invention.
The figure is a processing flowchart of the reading, editing and display section, and FIG. 4 is a block diagram showing the configuration of a conventional system. In the figure, l is a data processing unit, 2 is a format (format) W collection processing unit, 3 is a screen definition body, 4 is a reading unit, 5 is a display unit, 6 is a reading/editing display unit, 7 is an input/output screen, and 10 is an application 70 to 74 indicate operation steps of the program. Principle diagram of the present invention. Figure 1. Processing flowchart of the reading, editing and display unit. Figure 3. Block diagram showing the configuration of an embodiment of the present invention. Block diagram showing the configuration of a conventional system.

Claims (1)

[Scope of Claims] In the format editing processing unit (2) that mediates between the data input/output screen (7) and the data processing unit (1) using a screen definition body (3) that defines attributes of input/output data. , a reading/editing/displaying unit (6) that edits and displays the input data read from the screen according to the screen definition (3), reads the input data in response to a reading instruction from the data processing unit, A screen reading editing display method characterized by editing display.