JPH05233404A - File control system - Google Patents

Abstract

PURPOSE:To save backup files up to a backup file which is several generations before by setting and also refer to the backup files of the respective generations. CONSTITUTION:A file 1 before correction is corrected on a picture editor 2. When the file is saved after the correction, the old backup files 5 are saved by the generation up to the number of files specified at the environment specification part 11 of the picture editor 2. When the specified number is exceeded, a file control part 13 outputs a file deletion command and the backup file of the oldest generation among the backup files 5 is deleted in order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file control system, and more particularly to a file control system in a screen editor.

[0002]

2. Description of the Related Art The conventional file control method does not have a function of retaining a plurality of generations of backup files in a screen editor such as a terminal, a personal computer, a word processor, etc. In addition, it is possible to instruct how many generations the file should be stored by setting and automatically There was also no function to delete files.

[0003]

In the conventional file control method described above, the saver must change the file name and manage it when he / she wants to refer to the saved data many generations ago, and the number of files has increased. In case I had to delete it myself. Therefore, a wrong operation such as accidentally changing the file name and overwriting or deleting the file occurs. Further, there is a problem that a user who does not perform generation management may not be able to retrospectively correct a file that is several generations ago, even if he / she wants to refer to the file.

[0004]

In the file control method according to the present invention, the file control unit is specified by the environment setting unit when the file before modification is modified by the screen editor and the file is saved after the modification is completed. Save as backup files for each generation until reaching the number of files, and when the specified number is exceeded, issue a file delete command to delete the backup files of the old generation in order and save the uncorrected file as the back file of the latest generation. It is a thing.

[0005]

According to the present invention, the backup file can be saved up to several generations before the setting, and the file of each generation can be read out.

[0006]

1 is a block diagram showing an embodiment of a file control method according to the present invention. In the figure, 1 is an uncorrected file, 2 is a screen editor whose detailed configuration is described below, 3 is a modified file, 4 is a new backup file, 5 is, for example, a generation "1", a generation "2" and a generation. It is an old backup file that saves three files of "3". The generation "1" is the oldest old backup file, and the generations "2" and "3" are advanced.

In the screen editor 2, 6 is a read control unit for receiving the read request output from the following file control unit 13 to read the uncorrected file 1 and outputting the read data to the following file control unit 13, and 7 is a read control unit. A correction unit that corrects the read uncorrected file 1 by the keyboard operation of the user, 8 is a data holding unit that holds the data corrected by the correction unit 7, and 9 is a save start that outputs a backup creation instruction when the save is started Part, 1
Reference numeral 0 is a data writing unit that writes text data and an uncorrected file to the file.

As shown in FIG. 2, 11 is provided with a backup file number setting unit 12, and when the environment setting menu appears, the number of generations (in this embodiment, generation "1", The environment setting unit for the user to set whether to save the three files of the generation "2" and the generation "3"), and 13 is a detailed configuration thereof.
As shown in, the file control unit that manages the number of files, determination of deletion of saved files, and file generation instruction, and 14 is a deletion unit that deletes the old backup file for which deletion has been instructed.

The file control unit 13 includes a file counting unit 15 for counting the number of old backup files 5 and an environment setting unit 11 as shown in FIG.
The number of generations set in the backup file number setting unit 12 is compared with the value counted by the file counting unit 14, and when the number of specified files is reached and when they match, a deletion instruction 16A is output and the number of specified files is reached. If there is a mismatch, the file holding determination unit 16 that outputs the non-deletion instruction 16B and the deletion instruction 16A are received to delete the oldest file (oldest file in the current back files). It comprises a file deletion instructing section 17 for instructing the deletion section 14 and a file creation instructing section 18 for receiving the non-deletion instruction 16B and issuing a writing instruction to the data writing section 10.

In the environment setting unit 11, if the generation is not instructed, "1" is set in the backup file number setting unit 12, and the old back file is always saved in only one generation.

Next, the operation of the file control system having the above configuration will be described. First, the reading control unit 6 of the screen editor 2 reads the uncorrected file 1. Then, if there is a correction, the correction unit 7 corrects it by the keyboard operation of the user. On the other hand, the user specifies the number of generations of the backup file to be saved from the environment setting menu of the screen editor 2. In the embodiment, since the generation "1", the generation "2", and the generation "3", "3" is set. Is designated, the designated number of files (number of generations) "3" is set in the backup file number setting unit 12 (see FIG. 2).

The data corrected by the correction unit 7 is held in the data holding unit 8. After the data is corrected, when the save is started, the save start unit 9 changes the file control unit 13
Will be instructed to create a backup. Therefore, the file control unit 13 receives the backup creation instruction and issues a read request to the read control unit 6. Therefore, the read control unit 6 reads the uncorrected file 1 and sends the read data to the file control unit 13.
Then, the file counting unit 15 of the file control unit 13 counts the number of old backup files 5.

Then, the file holding determination unit 16 compares the value "3" set in the backup file number setting unit 12 with the value counted by the file counting unit 15 to reach the designated number of files, and they match. If so, a deletion instruction 16A is output to the file deletion instruction unit 17. This file deletion instructing unit 17
In response to A, the oldest generation file (oldest file in the current backup file), that is, generation "1"
The deletion unit 14 is instructed to delete.

Therefore, the deleting unit 14 deletes the generation "1" of the old backup file 5. This generation "1"
By deleting, the generation of the old backup file 5 is advanced, the generation "2" becomes the generation "1", and the generation "3" becomes the generation "2". Next, the file holding determination unit 16
If the number of files does not reach the designated number as a result of the above comparison and they do not match, the file creation instructing unit 18 is instructed not to delete 16B.
Will output. Therefore, the file creation instruction unit 18 outputs a write instruction to the data writing unit 10 after the non-deletion instruction 16B or the above-described deletion processing is completed.

As the backup file name, a file name for each generation is generated so that it will not be overwritten. The read data is sent to the data writing unit 10 and the new backup file 4 is created. The created new backup file 4 has the generation "3", which means that the backup file has been stored for three generations.

When the number of backup files is set to "5", the old backup file 5 is not deleted. Therefore, the new backup file 4 is the generation “4”. The corrected data held in the data holding unit 8 is written in the corrected file 3 via the data writing unit 10.

[0017]

As described above in detail, according to the file control method of the present invention, by providing the file control unit in the screen editor, it is possible to save the backup file of the designated generation. It is also possible to refer to the file. Then, when the data is corrected, the data and the program are broken due to a correction mistake, and when the user wants to return to the previous state, the data can be returned to the generation to be returned, and the reliability of the data being corrected can be improved. Moreover, because the specified number of generations is saved, the number of files does not become too large. Further, there is an effect that the work efficiency of the correction worker can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a file control system according to the present invention.

FIG. 2 is a block diagram showing a detailed configuration of an environment setting unit and a file control unit in FIG.

[Explanation of symbols]

 1 File before correction 2 Screen editor 3 File after correction 4 New backup file 5 Old backup file 6 Read control section 7 Correction section 8 Data holding section 9 Save startup section 11 Environment setting section 13 File control section 14 Delete section

Claims (1)

[Claims] 1. In a file control method for modifying a file before modification with a screen editor, an environment setting section for designating the number of generations of files to be saved and setting the designated number of files, and a backup file A file control unit that manages the number of files, determination of deletion of saved files and file generation instruction, and a data writing unit that saves text data and unmodified files to files are set in the environment setting unit. Depending on the number of files, determine how many generations to save the file, and when the number of saved files reaches the specified number, delete the old generation file and save the uncorrected file as the backup file of the latest generation. A file control method characterized in that