JPS61141073A - Input and correction of character - Google Patents

Abstract

PURPOSE:To facilitate operation by mixing and inputting arbitrarily Arabic character and Roman one (alphabet, numeric, mark, etc.), shifting a cursor and pressing a right character key so as to correct the character. CONSTITUTION:Arabic and Roman characters are arbitrarily mixed and inputted. When Roman character is inputted during inputting Arabic character, Arabic character memory circuit is reset, and its reset address is stored. At correction an address comparator circuit compares the rest address with a cursor one, detects automatically that the cursor moves beyond a field scope to which a series of Roman characters are inputted, resets Roman character memory circuit and returns automatically an operation from Roman character input mode to Arabic character input mode.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical field to which the invention pertains The present invention relates to a CRT device that displays a mixture of Arabic characters and Roman characters (alphabets, numbers, symbols, etc.). Regarding how to correct.

``Arabic letters are written from right to left, and Roman letters are written from left to right. Therefore, it is possible to display a mixture of Arabic and Roman letters.'6
On the cRr device, when inputting a terabic character, pressing the Arabic character key will input the Arabic character at the current cursor position, the cursor will automatically move one digit to the left, and the next input character will be placed at that position. The input is made at the cursor position, and the cursor is configured to move one digit further to the left. This type of input operation will be referred to as an Arabic character input mode.

On the other hand, in Roman character input mode, the manually pressed Roman character is entered at the current cursor position, the previous Roman character at that cursor position is moved one digit to the left, and the cursor is not moved, thus , the input characters are arranged from left to right by sequentially moving a series of characters that have already been input to the left. Also, if you continue to press the Arabic character key while entering Roman characters,
The cursor position is moved over a series of Roman characters to a virtual cursor position one digit to the left of the left end, and an Arabic character is input at that cursor position.

In the above character input method, when inputting characters without modification,
It is possible to input Roman characters arbitrarily mixed with Arabic characters. However, in a field where a mixture of Arabic and Roman characters is input, the operator needs to know where to place the cursor when correcting incorrectly entered characters, or when continuing to enter characters after making corrections. Should I move it and edit or enter it?
Also, it is very difficult to judge what will happen to the data that has already been input.1. The disadvantage is that it is not easy to operate. Although it would be possible to set various conditions depending on the input state at that time and operate under those conditions, it is not easy for the operator to remember these conditions and there are many erroneous operations, so this is not realistic. do not have.

OBJECTS OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional drawbacks and to provide a method for inputting and modifying characters that is easy to operate.

Structure of the Invention The character input and correction method of the present invention uses a character input device capable of inputting a mixture of Arabic characters and Roman characters, and the characters inputted from the keyboard are Arapirafuji characters. . A character memory circuit is used to remember whether a Roman character is input, and when a Roman character is input while an Arabic character is being input, the Arabic character type memory circuit is reset. When inputting a Roman character, there is a character type reset circuit that resets the Roman character type memory circuit, a reset address memory circuit that stores the reset address at the time of output of the character type reset circuit, a cursor position memory circuit that stores the current cursor position, and a Roman character type reset circuit. a virtual cursor position memory circuit for storing the virtual cursor position within the cursor; an address comparison circuit for detecting when the cursor has moved beyond the range between the front reset address and the virtual cursor position; and an attribute clearing means that resets the character type memory circuit and converts the input mode when the cursor is moved, and after moving the cursor to the character position to be corrected, inputting a character of any character type allows the user to change the character type at the position. Characterized by correcting characters.

Embodiments of the Invention Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram for explaining an input operation according to the present invention, and shows a display on a CRT.

Now, as shown in the same figure (A), the cursor position is at the rightmost end (
If the Arabic character -1 is entered at address An+8), the system operates in the Arabic input mode. In other words, A is input at the current cursor position,
The cursor moves one digit to the left (address An+7) (CB in the same figure), and in the same way, the Arabic character 3. ．． +, z,
If you input 2L sequentially, the result will be as shown in the same figure (C),
The cursor position is A n, + 3. Next, when Roman character B is input, the Roman character type storage circuit is set and the Arabic character storage circuit is reset.

The cursor position in this case is stored in the reset address storage circuit, and the operation is started in the Roman character input mode, and as shown in Figure (D), the Roman character B is placed at that position without moving the cursor. is input. When Roman letters B and C are subsequently input, the previously input Roman letters are moved to the left one digit at a time, as shown in FIG. That is, the address An+l NAn+3 contains the Roman character BBC, and the addresses An+4 to An+8 contain the Arabic characters '4p, -? jw is input.

And the address A to the left of the leftmost digit of the Roman input character
In the above-described state in which n is stored as a virtual address in the virtual address register, the range of consecutively input Arabic characters will be called subfield S1, and the range of Roman characters will be called subfield S2. Subfield 31 has addresses An+4 to An+8, and subfield S2 has addresses An+INAn+3.
It is.

With the above input operation, the Roman character B at address An+1
is an incorrect input of A, and the address An+7
The Arabic character j is assumed to be an incorrect input of j.Next, we will discuss how to correct this. The initial state is the second
First, press the cursor movement key ← twice to change the address An+1 to Roman letters BIA, as shown in Figure (A). The cursor moves two digits to the left, and the address is changed to A cursor is displayed at An+1. When an arrow key or a skip key is pressed, the overlap correction mode is entered, and the input character is entered at the cursor position, and the character previously stored at that position is deleted. Therefore, when you input the Roman letter A, B in the address An+l is corrected to A ((C
)).

Next, in order to correct the Arabic character J at address An+7, press the cursor movement key → six times to move the cursor to address An+7 ((D) in the same figure). At this time, the cursor is in the range of subfield S2. Since the cursor has moved beyond the address field 31 to the subfield 31 and has reached the address An+7, the cursor address is larger than the first address at the time of Roman character input, which is held in the predistributed cell address storage circuit. This is detected by the address comparison circuit, the Roman character type storage circuit is reset, and the mode returns to the Arabic character input mode. Also, when the arrow key is pressed, the overlap correction mode is entered. Therefore, when the Arabic character a is input, the Arabic character Q at the address An+7 is modified to ω and the cursor is moved one digit to the left ((E) in the figure). The modification is completed by the above operation.

In this embodiment, as in the conventional case, it is possible to input an arbitrary mixture of Arabic characters and Roman characters, and when making corrections, it is necessary to check where the correction position is and whether the correction characters are Arabic characters. There is no need to consider whether the character is a Roman character or not, and you can easily modify the character by simply pressing the arrow keys to move the cursor to the position you want to modify, and then pressing the correct character key. There is an effect.

Effects of the Invention As described above, in the present invention, 1. Normally, Arabic characters and Roman characters are arbitrarily mixed and input as in the past, and when a Roman character is input during input of Arabic characters, the Arabic character type storage circuit The configuration is configured to reset the reset address and memorize the reset address, and when modifying, the address comparison circuit compares the reset address and the cursor address. Since we have adopted a method that automatically detects when the cursor has moved beyond the range, resets the Roman character type memory circuit, and automatically returns from Roman character input mode to Arabic character input mode, the corrected characters will be changed to Arabic. There is no need to consider whether it is a character or Roman character, etc., and characters can be easily corrected by simply pressing the arrow keys to move the cursor to the desired position and then pressing the correct character key. The effect is that it is possible.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a display on a CRT in one embodiment of the present invention, and FIG. 2 is a diagram for explaining the procedure for correcting the input characters in one embodiment of the present invention.

Claims (1)

[Claims] A character input device capable of inputting a mixture of Arabic characters and Roman characters includes a character type memory circuit for storing whether a character input from a keyboard is an Arabic character or a Roman character, and an Arabic character input device. a character type reset circuit that resets the Arabic character type memory circuit when a Roman character is input in the input mode, and resets the Roman character type memory circuit when an Arabic character is input while a Roman character is being input; a reset address storage circuit that stores the reset address of the cursor, a cursor position storage circuit that stores the current cursor position, and a virtual cursor position storage circuit that stores the virtual cursor position during input of Roman characters;
an address comparison circuit for detecting that the cursor has moved beyond the range between the reset address and the virtual cursor position; and when the cursor has moved beyond the range, the character type storage circuit is reset to convert the input mode. Attribute clearing means is provided, and after moving a cursor to a character position desired to be corrected and input, the character input and correction method is characterized in that the character at the position is corrected by inputting a character of an arbitrary character type.