JPS6013588A - Character processor - Google Patents

Abstract

PURPOSE:To enhance operability at the time of documentation or editing, by a method wherein two or more kinds of tabs can be set, and independent tab operations can be performed in each line. CONSTITUTION:When an input is given through a tab key TAB, a numerical value at the first digit place in the cursor line on a display device CRT is set on a tab flag TFLG by a micro-processor CPU, and a tab register TRG1 or TRG2 is selected in accordance with the contents of the tab flag TFLG. Then, by referring to the contents of the tab register TRG1 or TGR2 thus selected, a displaying position of the cursor CA to be displayed next is calculated by a cursor save memory CURS, and the calculated value is transferred to a cursor register CR. Then, the cursor CA is controlled by a display controlling part CRTC on the basis of the contents of the cursor register CR, and is displayed at a corresponding postion on the display device CRT.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a character processing device for creating and editing documents, and in particular, to improve operability when creating and editing documents by facilitating the movement of a cursor to an arbitrary position. This is an attempt to improve the results.

(Prior Art) Conventionally, in this type of character processing device, when moving the cursor, the cursor movement key is generally used to move the cursor in sequence by seven digits, or the tab key is used to set a tab in advance. I moved the cursor several digits at a time to the desired position.

However, in this type of conventional device, the setting of the tab stop position using the tab key is limited to one type of item, so if you want to change the tab stop position every 7 lines, for example, you can set the tab stop position every 7 lines. The operation was cumbersome and difficult to use because the settings had to be changed. Furthermore, a character processing device has been proposed that can move the cursor to the special character at once by inserting a special character into the character string, but in this case, the special character is inserted into the character string in advance. This has the disadvantage that it is cumbersome to operate as it has to be done in advance.

(Objective) Therefore, the object of the present invention is to eliminate the above-mentioned drawbacks, enable the setting of one or more types of tabs, and enable independent tab operation for each line, thereby improving the ease of creating and editing documents. An object of the present invention is to provide a character processing device that improves operability.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of the configuration of the character processing device of the present invention, in which the CPU performs arithmetic operations and logical judgments for character processing, and is connected to the bus BUS K via a common bus BUS. The various m units are controlled as described below. The common bus BUS is composed of a control bus, a data bus, an xo:y bus, and the like, and is used to transfer control signals and various data to various connected devices.

The ROM is a read-only control memory, and stores in advance control procedures of the microprocessor CPU, which will be described later. KB is a keyboard as an input section used for inputting and editing text, and as shown in Figure 2, it has character keys AK and tab keys TAB.

Cursor key OK, 1st tab key TK/, 2nd tab key TK, 2, tab set key SK and tab reset B
UF is a buffer memory that temporarily records characters input from the keyboard KB. This buffer memory BUF is arranged, for example, as shown in FIG. It consists of digits, and its address can be written as B(0)~B(
b) The memory content is expressed by /vs/ on the corresponding display G
It is displayed as a character pattern at a position on RT via a character generator CG. As a display CRT,
Cathode ray tube displays and liquid crystal displays are used. (ERTO
is a display control unit that scans the data to be displayed and performs trap control to display it on the display (jRT). PRT is a printer, which is used to print character strings input from the keyboard KB.

RAM is a random access memory used for temporary storage of various data, and tab registers TRG/ and O are used for setting two types of tabs. Tab flag TFLG used to determine whether to do so.

and a cursor save memory OURS.

The cursor save memory 0UR3 is a memory used to calculate the next cursor position to be displayed when the tab key TAB of the keyboard KB is input, and outputs the calculation result to the cursor register OR, which will be described later.

The cursor register OR stores the position of the cursor OA on the display i ORT, and in this example, the cursor register OR stores the position of the cursor OA on the display i
It is assumed that serial numbers from 0 to j9 corresponding to addresses on RT can be stored, but as the cursor OA moves, the stored contents change under the control of the microprocessor CPU.

An example of the configuration of the above-mentioned tab registers TRG/ and TR0, TR2 is shown in the figure. T R/(0) ~ T Rt (7
) and 'l'RJ ((7) ~ TR, 2(7) u 7
Represents tress. This tab register TRG/and TR
Gλ can store the stop position of the cursor during tab operation within the range of one line of the display 0RTO. That is, when the first tab key TK/ is input, the tab flag T
When the content of FLG is “7”, the first tab register T
If RG/ is selected, then buffer memory B
As shown in Figure 3, which shows the contents of UF, move the cursor OA to a desired digit position, for example address B (2), and input the tab set key SK or tab reset key RK. ) can be set or reset, so that the contents of the first tab register TRG/ can be set or reset. 2nd tab register TRG
This can also be set or reset in the same manner as described above by pressing the input button of the second tab key TKJ and setting the contents of the tab flag TFLG to "2".

11, II or "2" of tab flag 'I'FLG to select this tab register Ti/or TRC, λ
” can be input from the keyboard KB for each line of display i GRT, and the result is a buffer memo') BUF
can be displayed at the /th digit of each row of the display CRT corresponding to 1 to 1, that is, addresses B(0), B(za), . . . B(3/) (see FIG. 3). This value is stored in the tab flag 'I'FLG of the memory RAM, and the tab operation follows the content of the first tab register TRG/ when the content of the tab flag TFLG is "l";
When the content of FLG is “2”, the second cup register TR
Perform according to the contents of G.2. In addition, when the numerical value is other than "l" or "4", this example operates in the same way as when the numerical value "/" is specified.0 In other words, when the tab key TAB is input, the microprocessor The CPU sets the value of the /th digit in the top row of the display CRT in the tab flag TFLG, and sets the tab register TRG according to the contents of the tab flag TFLG.
/or TRG, select 2.

Next, the selected tab register TRG/or T
By referring to the contents of R0 and R2, the display position of the cursor OA to be displayed next is stored in the cursor seven memory (dJ
R8 is used to calculate the value, and the calculated value is stored in the cursor register O.
Transfer to R. Next, the cursor key is controlled by the display control section QRTG based on the contents of the cursor register CR, and is displayed at the corresponding position on the display ORT.

Next, an example of the operation of the apparatus of the present invention shown in FIG. 1 will be described in more detail with reference to the flowchart shown in FIG.

Note that normal character input after the power is turned on is realized by a known technique, so a detailed explanation thereof will be omitted. In the initial state of this example, the tab register TRG shown in FIG.
It is assumed that / and TRG2 are all in the reset state, and furthermore, it is assumed that characters are stored in the rough memory BUF as shown in FIG.

Here, when the first tab key TK/ is input in step S/, an affirmative determination is made in step S2 to determine whether or not the first tab key TK/ is pressed manually, and the content of the tab flag TFLG is set to "1" in step S3. to select the first tab register TRG/.

Return to step S/ again and wait for the next key force.

Next, move the Shika-Tsuru OA to the position where the operator wants to set the tab using the cursor key OK, for example, on the display (3).
Cursor (EA) to address B (,2) of RT
When the set key SK is input by moving the
2, Sμ, SS, and S6 are all negative, and step S7 determines whether or not the set key SK is input.
An affirmative determination is made for the first time, and in step Sr, the first tab register T corresponding to the above address B (-2) is
The code of the set key SK is stored at the address T Rt <i) of RG/ to store the stop position of the cursor OA during tab operation. When changing the stop position of the cursor OA, the operator moves the cursor OA to the position where he wants to release the tab and inputs the reset key RK. Step 86 Force 1 determines whether the reset key RK is manually operated or not.
When an affirmative determination is made, the first tab register T is set in step S10.
Change the contents of RG/ to reset. Therefore, the operator only has to move the cursor OA further to an arbitrary position +N and input the set key SK.

On the other hand, when the second tab key TK2 is input, step SII, which determines whether or not the second tab key TL2 is input, becomes an affirmative determination, and in step S9, the tab flag TFLG is
Set the contents of ``!'' to ``!'' and set the second tab register 'f'R.
Select G2. Return to step S/ again and wait for the next key force. Next, the operator moves the cursor OA to an arbitrary position, for example, the address B (<z
), press set key S, K when cursor OA is at position
When inputted manually, the process proceeds from step S7 to step SIr in the same manner as described above, and in step SI, the address T R2 (4Z) of the first tab register TRG/ corresponding to the above address B (l/,) is set. The code of the key SK is stored, and the stop position of the cursor OA during tab operation is memorized. When the setting of tabs in the tab registers TRG/ and TRG2 is completed by the above operations, the contents of the tab registers TRG/ and Ti,2 become as shown in the figure.

Next, the operator moves the cursor OA to /column of each row of the display CRT, and registers the tab register TRG/or TRG.
, the numerical value "/" or "2' used to select 2
' is input from the keyboard K13, step 3.
2 and 341-37 are both negative, and the process advances to step Sll. In step S//, the above value “/
"'" or "2" is registered in the corresponding address position of the buffer BUF and displayed on the display ORT.With the above operations, in this example, the buffer B
It is assumed that a numerical value is input in the first column of each row of UF.

Further, when the operator moves the deer crane OA to the address B (0) position of the display CRT and manually presses the tab key TAB, it is determined whether or not the tab key TAB has been input.

An affirmative determination is made in step SS, and in step S/2, the numerical value stored at address B (0) of buffer BUF is transferred to tab flag TFLG.

As a result, the contents of the tab flag TFLG become l”,
Cursor OA moves according to the contents of first tab register TRG/. That is, in step S12, the contents of the cursor register OR are changed from "0" to "2", and the cursor OA is moved from the address B (O) of the /th digit to the address B (,2) of the third digit. Moving. Thereafter, the process returns to step S/ and waits for the next key force. Next, when the cursor OA is moved to the address B (lr) corresponding to the λth row/column of the display CRT and the tab key TAB is input, the second tab register TRGλ is selected in step S7.2. Then, according to the contents of the tab register TRG-, move the cursor OA from the 1st column of the 2nd line to the jth column of the 2nd line, to the value set in advance in the / column of each line of the display RC1RT. Correspondingly tab register TR
Since the selection of G/or TRGλ and the tab operation are executed, editing of the document can be easily performed.

In this example, two tab registers are prepared, and dedicated keys TK/ and TK2 are used to select this tab register.
However, the present invention is not limited to this, and if the number of tab registers is to be increased, the configuration may be such that tab registers can be selected by a combination of a tab register designation key and a numeric key. Furthermore, in this example, the tab operation is configured to be performed using a single tab key TAB, and one of the two tab registers is selected for operation, but the tab operation is not limited to this and each tab register is supported. By providing a dedicated tab key, the configuration may be such that the selection operation is performed.

Furthermore, by providing tab registers corresponding to all rows, the selection of tab registers may be made unnecessary.

(Effects) As explained above, according to the present invention, when creating columns or creating numerical tables when creating and editing text, the cursor can be moved at once by setting multiple tabs, instead of every line as in the past. Since it is no longer necessary to change the tab settings, document creation and editing operations can be made extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of the configuration of the character processing device of the present invention, FIG. 2 is a plan view showing an outline of an example of the arrangement of the keyboard shown in FIG. 1, and FIG. 3 is a buffer memory and display shown in FIG. 7. An explanatory diagram showing an example of the positional relationship of the vessels.
A configuration diagram showing an example of the illustrated tab register, FIG.
This is a flowchart showing a rough example of the steps shown in the figure. CPU...Microprocessor, BUS...Common bus, ROM...Control memory 1 KB...Keyboard, BUF...Buffer memory 1 CRT... Display unit, CG...Character generator, 0RTO...Display control unit, PRT...Printer, RAM...Random access memory, TRG/, TR
G2...Tab register, TFLG...Tab flag, CUR3...Cursor save memory, OR...Cursor register, OA...Cursor. Patent applicant Canon Co., Ltd.

Claims (1)

[Claims] In a character processing device having an input means for inputting characters, a storage means for storing a character string inputted from the input means, and a display means for displaying the character string stored in the storage means, the display means Tab setting means capable of setting two or more types of tab stop position information for each display line, and displaying seven types of tab stop position information from among the two or more types of tab stop position information set by the tab setting means. 1. A character processing device comprising: a selection instructing means for instructing a selection for each display line of the means.