JPH01191255A - File editing device - Google Patents

Abstract

PURPOSE:To satisfactorily protect an original document by dividing the file area of a document file to a normal document area and a limit code area where limit information is stored and referring to contents of the limit code area in response to an editing request to discriminate whether editing should be permitted or not. CONSTITUTION:The file side is provided with a function by which file contents are so held that a code string area 20 used for control can be read out independently of a document file 10 of actual contents displayed on a screen at the time of editing. The editing device side is provided with a function to discriminate whether restrictions are put on contents or not in accordance with information in the code string area 20, a function to edit contents which are not limited by the code string area 20 out of actual contents displayed on the screen, and a function to edit limited contents in another mode. Thus, only a specific person is permitted to edit contents of a specific file.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file editing device, and particularly to a function for restricting editing of a file used by a plurality of users.

[Prior Art and its Problems] Recently, workstations have been significantly developed, mainly for office use.

In order to accommodate the division of work and cooperation that takes place within the office, efforts are being made to share information both inside and outside the office and improve work productivity.

With recent advances in network systems, etc., file format documents that can be transmitted electronically using line networks are attracting attention instead of paper documents that are physically mailed. In other words, electronic communication is considered to compensate for the immediacy that postal mail lacks.For example, the process of putting a printed slip in an envelope and mailing it is possible if Postal Hikari is an affiliated company, etc. In particular, throughput is enhanced through the use of electronic communications.

However, unlike physical paper documents, file format documents consisting of code information are easy to modify, and there is a problem that they are vulnerable to things that you do not want the original to be edited or things that you do not want to be modified. Ta. This problem has been an impediment to the digitization and OA of documents.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to protect original documents.

[Means for Solving the Problems] Therefore, in the present invention, the file area of a document file is divided into a normal document area and a restriction code area for storing documents whose editing needs to be restricted, and the control code area is The file editing device is provided with a determination means for determining whether or not editing is permitted, and editing is enabled only when permission is granted.

(Function) With the above configuration, for example, the file side stores the code string area used for control separately from the document area for the actual content displayed on the screen when editing the file contents so that it can be read out. The editing device has a function that determines whether or not the content is restricted based on the information in the code string area, and a function that determines whether or not the content is restricted by the code string area among the actual contents displayed on the screen. It provides the ability to edit content that is not currently available, and the ability to edit restricted content in other modes, making it possible to allow only specific people to edit the content of specific files. .

[Example] Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a workstation using an image editing apparatus according to an embodiment of the present invention.

This workstation T stores restriction information as a code string in the restriction area for a specific file that requires restrictions on editing, and has a display with a judgment function to determine whether or not to apply restrictions on editing. It is characterized by being equipped with an image editing device for controlling editing on a display screen, which includes a display 2, a central processing unit 2, a memory 3, and a file input/output device 4 connected to a local network area, etc. and an input table @5 consisting of a keyboard and a mouse. The central processing unit is provided with an image editing device 2a for controlling editing on the display screen of the display.

As shown in FIG. 2, the file storage areas of this image editing device include a document area 10 that stores all input files, and a control code area that stores restriction information as a code string for files that require restrictions. The file in the control code area is opened according to the judgment of the judgment means.

This determination means that if the command input from the keyboard is to edit a document file in a restricted area, it will instruct you to enter a password, and if the input password is in the restricted area of the document file. It is configured to determine whether or not the password matches the password entered in each restriction information, and to permit the document to be opened only if they match.

Next, the operation of this image editing device will be explained with reference to the flowchart shown in FIG.

First, the display screen of display 1 is as shown in FIG.
A document window 21 for disclosing the document and an edit check window 22 are displayed (step 10).
1) Next, use the mouse to select the edit request command 31 located in a part of the header of the document window 21 (step 102). This may be an editing command key on the keyboard.In this way, when an editing request is issued for the content displayed in the document window, the image editing device 2 uses the code in the control area of the document file. The column is read (step 103), and it is determined whether there is one with that address (step 104).

If none or all O's are displayed, it is determined that no restrictions have been added and the editing mode is entered (step 108).

On the other hand, if there is a code string read from the control area in the content with that address, and even one of the code strings is read out from the control area,
If there is something that does not appear, it is determined that there are restrictions on editing, and the edit preview window 22 is opened (step 105).

The user then issues a close command by typing the password character string corresponding to the above-mentioned read code string into the typing area 41 in the edit check window (step 106).

At this time, the image editing device determines whether the control code and password match (step 107).

Only when these match can the editing mode be entered (step 108).

On the other hand, if it is determined that the passwords do not match, an error message is returned to the user (step 109).
This user cannot edit the document file.

Next, the operation of saving the document edited in this manner will be explained with reference to the flowchart shown in FIG.

First, the editing mode is entered in step 108 described above (step 201), and the document in which aJJ has been performed is saved when the save command 32 in the header part of the document window is selected with the mouse (step 202). A check window is opened again on the display (step 203).

Here, when attempting to restrict editing of the document file, type an arbitrary code string in the typing area 41 and click the close command 12 (step 204). Next, the editing device reads the code in the typing area 41. The column is output to the cut surface code area of the corresponding document file (step 205).

Then, a code string corresponding to the actual document area after editing is written out (step 206).

After this, the display screen is returned to the actual contents of the document area (step 207).

In this way, the next time an editing request is made, by checking this code, editing permission will be granted only to restricted users, making it possible to better protect the original document.

Here, the control code area may be located anywhere, and it is also possible to encrypt the actual document area using the control code so that it can be read only by a specific person.

〔Effect of the invention〕

As explained above, according to the present invention, the seven file areas of a document file are divided into a normal document area and a restriction code area for storing restriction information, and when an editing request is made, the restriction code area is referred to and edited. Since a judgment is made as to whether or not to permit the original document, it is possible to protect the original document well.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an image editing device according to an embodiment of the present invention, and FIG. 2 is a diagram showing a file storage area of the same document file.
FIG. 3 is a diagram showing the display, FIG. 4 is a flowchart showing the operation of the image editing apparatus, and FIG. 5 is a flowchart showing the saving operation. 1...Display, 2...Central processing unit, 3...
-Memory, 4...File input/output device, 5...Input device. Figure 1 Figure 2

Claims (1)

[Claims] A document file is divided into a document area for storing information documents and a control code area for storing information for imposing restrictions on editing of documents in the document area. In addition, when there is an editing request, a decision means is provided to refer to the control code area and decide whether or not to allow editing, so that editing is only possible when permission is granted. Characteristic file editing device.