JPS6367215B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a document creation device, and particularly to a processing method for inserting characters into a created document.

[Technical background of the invention and its problems]

Document creation devices are designed to freely modify already created documents using proofreading and editing functions such as correction, insertion, and deletion. The characters constituting a document are in the form of a code, and are stored in an external storage device such as a floppy disk during storage, and in a storage circuit inside the device during processing such as creation, proofreading, and editing.

Now, in a document, there are characters that have attributes attached to each character and are not represented by simple codes, such as underlined characters, double-width characters, subscript/superscript characters, and hatched characters. These characters are stored with a control code added to the corresponding character code. For example, an attribute bit is added to the code storage section, and this bit is
By turning it ON/OFF, you can specify underlining, etc.

By the way, in conventional document creation devices, when a new character is inserted into a character string to which a control code has been added, the control code is not added to the new character. For example, in Figure 1 A, underline 2 like character string 1
If you insert a new character, the first
As shown in Figure B, the inserted character 3 does not have the underline 2, and the underline of character string 1 is cut off in the middle. Normally, when inserting a new character into a character that has been added with a control code such as an underline, the same control code is often added to that character.
In the above case, after inserting a character, it is necessary to add a control code (underlined in the previous example) to the inserted character. This work was very complicated for the operator.

[Purpose of the invention]

When a new character is inserted into a character string to which a control code such as an underline has been added, the present invention adds the control code to the inserted character according to the control codes added to the characters before and after the insertion position. The purpose of the present invention is to provide a document creation device that provides the following functions.

[Embodiments of the invention]

The present invention will be explained below using examples. FIG. 2 is a schematic block diagram of a document creation device according to the present invention. 21 is the CPU and main memory unit (MMU) 22
Under the control of the program stored in the , data input from the keyboard 23, display control of documents/messages, etc. on the CRT 24, input/output control of the FDD (floppy disk device) 25, document creation,
Performs proofreading/editing control, etc. In addition to the above programs, the MMU 22 stores character codes and control codes that constitute a document.

Next, the operation of the embodiment will be explained using the flowchart shown in FIG.

Consider a state in which the device is in a new document creation mode or an already created document proof editing mode, and document information is stored in the MMU 22.
A portion of the document information is displayed on the CRT 24 according to the screen display capacity.

Now, by operating the cursor control keys provided on the keyboard 23, the operator specifies the position where a new character is to be inserted. continue,
In order to operate the CPU 1 in the insertion mode, the operator presses an insertion instruction key provided on the keyboard 23. The cursor is managed by a cursor output provided in a CRT control circuit provided within the CRT 24. That is, by pressing the cursor control key, the cursor display address register of the CRT control circuit is updated. The CPU 21 calculates the storage position in the MMU 21 of the newly inserted character code based on the information of this cursor display address and the start address (address of the MMU 22) of the document currently displayed on the CRT 24.

Next, when the operator inputs a new character from the keyboard 23, the CPU 21 inputs a new character from the keyboard 23.
The character code sent from or the kanji code converted by kana-kanji conversion is stored in the calculated address of the MMU 22. However, before storing, the character codes originally stored below the address are sequentially moved one by one, and a position where a new character code is stored is made in advance.

Next, the CPU 1 reads out the control code corresponding to the character code immediately before the address. Subsequently, the CPU 1 reads out the control code corresponding to the character code after the address. In the MMU 22, character codes and control codes are stored in correspondence as shown in FIG. 41 is a character code storage area of 2 bytes each, and 42 is an attribute storage area of 2 bytes each. Since the area 41 and the area 42 have a certain correspondence, the address where the control code of the character code is stored can be calculated from the address where the character code is stored.

Next, the CPU 1 compares the control codes corresponding to the character codes before and after the newly inserted character code. When the two control codes match, the same control code is written in the control code storage location that corresponds to the new character code storage location. If there is no match, it is left unspecified. However, the coincidence of the two control codes does not have to depend on the coincidence of all the control bits, but may be set so that a certain part of the bits match.

By performing the above processing, an appropriate control code is also attached to the inserted character.

〔Effect of the invention〕

As described in detail above, according to the present invention, when inserting a character into a specified document, the control data attached to the character data before and after the insertion position is attached to the character data corresponding to the inserted character. For example, it is possible to automatically add underlines to characters as instructed by the control data. Therefore, the operator can reliably perform proofreading and additions such as character insertion without having to input new control data by simply inputting the insertion position and insertion character using the input device. That is, it is possible to provide a high-performance document creation device with excellent operability.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a document for explaining the operation of a conventional document creation device, FIG. 2 is a block diagram showing the basic configuration of a document creation device according to an embodiment of the present invention, and FIG. is a flowchart for explaining its operation. FIG. 4 is a diagram showing a storage system for character codes and control codes in the main memory. 21...CPU, 22...Main storage device, 23...
...Keyboard, 24...CRT, 25...External storage device (FDD).

Claims (1)

[Claims] 1 A storage device that stores control data attached to each character data that constitutes the document information, and an insertion position designation key and an insertion instruction key that are used to insert new characters into the character string that constitutes the document information. and a processing device that stores a character code to be newly inserted into a character data string stored in the storage device according to an instruction from the input device. means for reading control data attached to character codes before and after the inserted character from the main storage device;
means for comparing the two control codes read by the reading means; and when a match between the two control codes is detected by the comparing means, the same control code is added to the newly inserted character; A document creation device comprising: means for storing the information in the main storage device.