JPS5864547A - Inserting and deleting method for character by limiter selection system - Google Patents

Abstract

PURPOSE:To prevent occurrence of erroneous operation, by specifying part of the display screen area of a CRT display with an upper and a lower limiter, and inserting and deleting characters in the specified area. CONSTITUTION:A program or data to be corrected are read out of a storage table 1 for the program and data that a user generates and then displayed on a CRT display device 2. For this correction processing, necessary information is specified on a keyboard 3 and the cursor is moved to a corrected point. In this case, only display information within a correction range is corrected by a character inserting and deleting command system 4 by a limiter selection system and redisplayed on the device 2, thereby proceeding to successive processing. A column varying part 8 is arranged between the upper and lower limiters 7-1 and 7-2 on this display screen 5, and column fixation parts 6-1 and 6-2 are also arranged corresponding to the limiters 7-1 and 7-2 to insert and delete characters, thus preventing occurrence of erroneous operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a man-machine system for creating, modifying, and adding programs or data using a keyboard and a CRT display device as input media, and in particular for inserting or deleting characters in a displayed character string. Inserting and deleting characters by setting the correction range arbitrarily or using the Mitsutah selection method, which is suitable when there is a part (hereinafter referred to as the blade ram fixed part) that you do not want to be affected by column movement. Regarding processing.

When partially modifying a program using the screen, the key point is how to set up a barrier to prevent the modification from affecting others.

In conventional word processors, the upper and lower limits of IJS can be set for multiple digits of the screen, or can be set for only the digits of the screen, but when this is applied to program debugging and correction work, In the former setting, anything in the mitzah that spans multiple lines is subject to modification. For example, if you insert several characters in the first line, the overflowing characters will be shifted to the next line, and the overflowing characters will be continuously shifted to the next line. In other words, if there was a column fixing part, it was necessary to see in advance how many columns would be shifted and shift it, or to return only that part to the original column after the fact. Therefore, it is necessary to carry out handling at least twice to correct one location, and in this case, it is time-consuming for a man-machine to correct the program, that is, to partially correct information independent of each line, and is prone to operational errors. If you set the upper and lower limit limiters for the screen digits as in the latter case, once you finish correcting the line where the limiter is set, you will need to set the limiter again for another line, which requires correction. If the statement has multiple lines, the IJ Mitter setting process must be repeated for the number of digits. This costs labor and time, and is difficult in terms of efficiency.

An object of the present invention is to reduce the labor and time required for inserting or deleting characters in a display program or data by completing the process in a single operation without having to be aware of column fixed parts. The object of the present invention is to provide a character insert/delete command system in order to improve the quality and reliability of program debugging and correction work.

The present invention focuses on the problems of the prior art, and specifies the limits of the correction range in advance, allowing characters outside the correction range (column fixed parts) to be freely edited in a single handling without affecting them. It is possible to insert and delete characters continuously even in a single case that spans multiple lines, and by making the IJ mitter variable, it can be used with any programming language. Furthermore, if the leftmost character of the correction line protrudes from the upper limit IJ mitzah and disappears from the 1 display screen due to the insertion process, the entire line is displayed in reverse to alert the user, thereby preventing erroneous operations during correction work. Here, "reverse display" means displaying the text and background (screen) by changing their colors.

An embodiment of the present invention will be described below using screens. 1st
The figure shows the flow of data in an embodiment of the present invention. In FIG. 1, the user program or data that needs to be modified is read out from the main memory 1,
The screen is displayed on the T display device 2. Then, the user specifies information necessary for the correction process using the keyboard 3. The information necessary for the correction process here includes an insert (or delete) command, the number of characters to be corrected, a new set value for the correction range if necessary, and finally, movement of the cursor to the 16-point position. After that, only the display information within the meandering area is corrected by the character insert/delete method 4 using the glue selection method of the present invention.
It is redisplayed on the CRT display device for further processing (e.g. inserting or deleting new characters, or storing modified user programs or data in main memory).
will be moved to.

FIG. 2 is an example of display information limiter settings in the embodiment of the present invention. In FIG. 2, the area 8 between the upper and lower limits is the correction range, and is the area where columns are moved by inserting or deleting characters. Other parts are outside the correction range, and no column movement is performed. 5 shows the entire CRT screen. 6-1.6-2
is the column fixed part, indicating the annotation line number continuity and identification number. 7-1 and 7-2 are upper and lower limiters.

FIG. 3 is a schematic flowchart of a character insert/delete method based on the mitsutah selection method. Blocks D to J in FIG. 3 indicate that the processing is repeated for the specified number of characters to be corrected. In block A, the specified command is imported, and it is determined whether the modification is an insert process or a delete process,
It also takes in the number of corrected characters and determines the number of consecutive processes.

If a correction range (limiter) is specified, the correction range is updated, and finally the specified cursor coordinates are imported. In block B, the rationality of the previously fetched specified information is checked. If there is an error in the command, the number of characters to be modified, the range to be modified, or the cursor specification, the process will pass through the NG routine. In block C, it is determined whether the value obtained by adding the number of characters to be corrected to the specified cursor number, that is, the X coordinate, is within the correction range, and whether correction processing is necessary or not is determined. Here, if the value obtained by adding the number of modified characters to the specified X coordinate is outside the modification range, the routine goes through the NO routine. In block F, if the designated command is insert, the display information is rear-justified, and if the designated command is delete, the display information is front-justified. In block G, it is determined whether the destination of the information due to last-filling is within the correction range □, and whether or not reverse display is necessary is determined. If all the information destinations are within the correction range, the limiter
You will go through the routines within. In block H, the mode is switched to reverse display mode. In block (2), space is cleared at the source of the information by front-filling and rear-filling to eliminate data overlap. In block ■(, the corrected display information is output on the screen and the reverse mode is finally released.

According to this example, the user can insert or delete the desired number of characters from the desired location without affecting the column fixed part and without having to re-set the limiter for each line. Therefore, you can continue editing by changing the cursor coordinates, and if an overflow occurs during insertion, the entire line is displayed in reverse, so you can check the processing result by changing the color. This has the effect of preventing erroneous operations.

The present invention has the following effects.

(1) Eliminates the need to move the column fixing section twice before or after the procedure.

(2) Characters can be inserted and deleted without being aware of column fixed parts.

(3) For programs in the same language or data of the same type, you only need to set the IJ meter once, and then characters can be inserted and deleted continuously.

(4) Even if there is a character that protrudes from the upper limit IJ limit and disappears from the screen due to the insertion process, the presence or absence of the character can be quickly confirmed.

(5) Due to the reasons (1) to (4) above, the effort and time required for correction can be reduced.

(6) Mistakes such as forgetting to return the column fixing part that has been moved or returning it to the wrong destination are eliminated.

(Power) Due to the reasons (1) to (6) above, it is possible to insert and delete characters accurately and quickly, which has the effect of improving the processability of program debugging and correction work, ensuring high reliability, and improving efficiency. There is.

[Brief explanation of the drawing]

Fig. 1 is a system diagram for explaining the present invention, Fig. 2 is a diagram showing an example of setting a limiter in an embodiment of the present invention, and Fig. 3 is a diagram showing an example of setting a limiter in an embodiment of the present invention.
The figure is a diagram showing the political flow of the first embodiment of the present invention. 1... User-created modification program or data storage table, 2... C'RT display device, 3.
...Keyboard, 4...Character insert/delete command method using limiter selection method, 5
... CRT screen, 6-1... Column fixing part, 6-2.
...Column fixing part 2 (identification number), 7-1... Upper limit limiter, 7-2... Lower limit limiter, 8... Figure 2

Claims (1)

[Claims] 1. In a computer system that uses a keyboard and a CR/T display device as media to modify or add display information, a specific area in the display screen area is defined by setting upper and lower limits, and the defined specific area is A method for inserting and deleting characters using the Rimitzah selection method, which is characterized by inserting and deleting characters.