JPH036658A - Character processor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a character processing device such as a Japanese or English word processor, and more particularly to a character processing device having a tab setting function.

(B) Prior Art Conventionally, this type of character processing device has text editing functions such as right-cutting, left-cutting, centering, tab setting, and digit alignment.

Among these editing items, tab setting is performed by pressing the cursor key on the keyboard to move the cursor to a desired tab setting position and pressing the tab key in the tab setting mode.

At this time, the user reads the scale displayed on the screen of the display device to confirm the set position. Furthermore, even when setting multiple tabs, the distance between the two tabs, that is, the number of characters that can be input, is checked using the scale.

(c) Problems to be solved by the invention However, in the above configuration, when setting several tabs at arbitrary intervals, it is necessary to check the interval between two tabs on a scale each time. However, the operability was poor. Furthermore, even when checking the spacing between tabs after setting the tabs, it was necessary to count the scale between the tabs one by one.

This invention was made in consideration of the above circumstances, and when moving the cursor to set a tab, the amount of cursor movement is checked, and after setting a tab, the distance between two tabs or a number is checked. The purpose is to provide a character processing device that can perform the following functions.

(d) Means for Solving the Problems FIG. 1 is a block diagram showing the configuration of a character processing device according to the present invention. As shown in the figure, the present invention can display a scale and a cursor, and A display means 1 capable of displaying information, an input means 2 for inputting various instructions including cursor movement instructions and tab setting instructions, and a cursor movement for moving the cursor in response to cursor movement instructions input from the input means 2. means 3, and means 1 for setting a tab at the position of the cursor according to a tab setting instruction inputted from input means 2, and displaying a symbol indicating the position where the tab has been set;
Tab setting means 4 to be displayed on the scale displayed in
, a counting means 5 for counting the interval from the tab position set by the tab setting means 4 to the current cursor position and the interval between two set tabs, respectively; A character processing device characterized in that it has a display control means 6 for displaying intervals in numbers close to the scale and between a set tab and the current cursor and between two set tabs. be.

The display means in this invention is a CRT known in the art.
'A display device having a PLCD or the like can be used.

The input means includes, for example, a keyboard and a pointing device such as a mouse. In the case of a keyboard, for example, it is configured so that instructions for moving the cursor up and down, left and right on the screen can be input using four cursor keys, and for inputting instructions for tab setting mode for tab setting. The configuration may include a function key and a tab key for inputting an instruction for setting/cancelling a tab.

The tab setting means, the counting means, and the display control means may basically be configured mainly by a microprocessor. The tab setting means includes a register having a bit length corresponding to the number of characters that can be input in one line, for storing the position of the set tab. Further, the counting means has a register for storing the cursor position and a counter for counting the interval at which the cursor has moved.

(e) When an instruction to move the cursor is input by the input means while the effect display means is displaying the scale and cursor, the cursor moving means moves the cursor in response to the instruction to move the cursor. When a tab setting instruction is input from the input means after the cursor has been moved to a desired position, the tab setting means sets a tab at that position and displays a symbol on the scale indicating that a tab has been set on the display means. Display.

The counting means calculates the interval from the tab position set by the tab setting means to the current cursor position and the set 2
Count the spacing between each tab. Each counted interval is displayed numerically on the display means by the display control means.

Therefore, the position of the next tab to be set and the interval between two tabs can be easily confirmed from the set tab, and operability is improved.

(F) EXAMPLES Hereinafter, examples of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the following examples.

In FIG. 2, 11 is a keyboard as an input means;
t2 is a CRT as a display means.

The keyboard 11 has various function keys including a kana character key, a numeric key, a cursor key, a tab key, and a function key for a tab setting mode (tab setting key), and is connected to the control unit 13.

The control unit 13 includes a microcomputer, an I10 interface, a character generator, etc.
According to a control program stored in a predetermined area of the main memory 14 consisting of M, various data processing described below is performed. In the case of a Japanese word processor, the main memory [4] stores kana-kanji conversion dictionary data for kana-kanji conversion. A display buffer 15 for storing image information to be displayed is connected to the control unit 13, and the control unit 13 expands the text stored in the data memory 16 into the display buffer 15 into image information. Serve memory. The image information stored in the display buffer 15 is transferred to the CRT controller (CRTC) 17.
Displayed on RT l 2.

Reference numeral 18 denotes a T register for storing tab positions, which is connected to the control unit 13 and has a bit length, for example, 128 bits, corresponding to the number of characters that can be input in one line, with the least significant bit LSB corresponding to the beginning of the line, and the least significant bit MSB corresponds to the end of the line.

Similarly, the control unit 13 includes a C register 19 and a Cp register 2.
0 and B counters 21 are connected.

The C register 19 stores the currently displayed position of the cursor as a numerical value, and the cp register 20 is an auxiliary register for the C register 19, each having a length of, for example, 8 bits. The B counter 21 counts the distance traveled by the cursor (number of characters) and the distance between two set tabs (number of characters), and has a length of, for example, 8 pits.

Next, the operation of this embodiment will be explained with reference to FIGS. 3 to 5.

FIG. 3 is a flowchart showing the processing of the C register 19 during cursor movement.

The C register 19 stores "1" as an initial value when the cursor is at the beginning of a line. To move the cursor, it is first determined whether or not the right cursor key for right movement among the cursor keys on the keyboard 11 has been pressed (
Step 100). When the right cursor key is pressed, the instruction is input to the control unit 13, and the control unit 13 increments the data of the C counter 19 (step 1ot
).

If it is determined in step 100 that the right cursor key is not pressed, it is determined whether the left cursor key for leftward movement has been pressed (step 102). When the left cursor key is pressed, the instruction is input to the control unit 13, and the control unit 13 decrements the data in the C counter 19 (step 103). Each time the cursor is moved in this way, steps 100 to 103 are repeatedly executed, and each time the C
The data in the counter 19 is rewritten.

Next, FIG. 4 is a flowchart showing tab setting processing.

First, when the cursor is moved to the line where the tab is to be set and the tab setting key on the keyboard 11 is pressed, the tab setting mode is entered and the scale is displayed on the line following the line where the cursor is displayed. Next, the cursor is moved to a desired position using the cursor keys, and when the tab key on the keyboard 11 is pressed (step 200), the instruction is input to the control unit 13.

The control unit 13 specifies the least significant bit LSB of the T register 18 (step 201), and then stores the data of the C register 19 in the Cp register 20 (step 202).
).

Next, the data in the Cp register 20 is decremented, the result is newly written in the cp register 20, and it is determined whether the data in the Cp register 20 is a positive number or "0" (step 203). If the data in the cp register 20 is a positive number, the address counter of the T register 18 is counted up (step 204). and step 203
After repeatedly executing steps 204 and 204, the cp register 20
If the data is "0", the corresponding bit of the T register 18 of the address counted up by the address counter of the T register 18, that is, the bit of the T register 18 corresponding to the position where the cursor is displayed, is set to that bit. If the bit is logic "0", set the tab as logic "l" and display the tab position as a symbol on the cursor, and if that bit is already logic "l", cancel the tab setting as logic "0". The symbol displayed at that tab position is deleted (step 205).

During the process of moving the cursor and setting tabs as explained above, the distance the cursor has moved and the interval (distance) between the set tabs are displayed in numbers near the cursor, for example below the cursor. , and is displayed between the tab position and the cursor and between two tabs.

In FIG. 5, first, the data processed in steps 100 to 103 and written to the C register 19 is c
At the same time as being written to the p register 20, the B counter 2
The numerical value [l soil is written to 1 (step 300). Next, the least significant bit LSB of the T register 18 is specified (step 301), and then the state of the bit of the T register 18 is determined (bit test) (step 302).

As a result of the bit test, the bit of T register 18 is logic “
0", the data in Cp register 20 is decremented in step 303, and the result is newly stored in Cp register 2.
0 is written, and it is determined whether the data in the Cp register 20 is "0". If the data in the cp register 20 is not "0", the B counter 21 is incremented (step 304).

Thereafter, the designated bit of the next T register 18 subjected to the bit test is counted up (step 305), and it is determined whether it exceeds the most significant bit MSB of the T register 18 (step 306).

As a result, if the most significant bit MSB is not exceeded, the process returns to step 302 and a new bit test is performed. In that bit test, the tested bit is a logic “0”
If so, step 303 is executed, and if the logic is "1", that is, the tab is set, step 307 is executed.

In step 303, if the data in the Cp register 20 is "0", the contents of the B counter 21 at that time (
numeric value) is written into the display buffer 15 and displayed on the CRT 12 via the CRTC 17 (step 308).

This allows you to check the current position of the cursor. After this, rlJ is written to the B counter 21 (step 309
), steps 305 and 306 are executed.

As a result of the bit test, the bit of T register 18 is logic “
1", that is, if the tab is set, step 307 is executed. In step 307, the data in the cp register 20 is decremented, the result is newly written to the Cp register 20, and the data in the Cp register 20 is It is determined whether the correct value is "0". If the result is positive, the current value of the B counter 21 is written into the display buffer 15 and displayed on the CRT l 2 via the CRTC 17 (step 310).

This allows you to check the spacing between the two tabs.

After that, "1" is written to the B counter 21 (step 311), and steps 305 and 306 are executed.

When a tab is set at the currently displayed cursor position, the tab setting position is detected by the bit test in step 302, and the data in the Cp register 20 is determined to be "0" in step 307, so step 310 is performed. The same process is performed in step 312 and the spacing between tabs is CR
It is displayed on T. After this, “FFHJ” is written in the cp register 20.
(H indicates hexadecimal number) (step 313
).

Here, the process in step 313 is to prevent the data in the Cp register 20 from becoming negative by decrementing when counting the tab interval when tabs have already been set toward the end of the line from the currently displayed cursor position. It's for a reason.

After that, "l" is written to the B counter 21 (step 314), and steps 305 and 306 are executed. If it is determined in step 306 that the most significant bit MSB of the T register 18 has been exceeded, the process moves on to other processing including cursor movement and tab setting processing.

To summarize the processing in FIG. 5, (1) If the cursor is at a position where no tab is set, the interval between the cursor and the tab that has been set at the beginning of the line or in the direction of the beginning of the line by the cursor is set at step 303.
and 304 and displayed in step 308. (2) The set interval between the two tabs is calculated in step 30.
3 and 304, and steps 307 and 310.
(3) If a tab is set at the cursor position, the distance between the cursor and the tab that has already been set at the beginning of the line or from this tab position in the direction of the beginning of the line is displayed in steps 303 and 304.
and displayed in steps 307 and 312.

(G) Effects of the Invention According to this invention, when setting tabs, the distance between the beginning of a line or the previously set tab and the cursor can be confirmed by a number corresponding to the number of characters, and the distance between two set tabs can be confirmed. Similarly, since it can be confirmed numerically, tab setting work becomes easier, and a character processing device that allows setting errors to be easily confirmed can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a block diagram showing the configuration of an embodiment, FIG. 3 is a flowchart showing the processing of the C register when the cursor is moved in the embodiment, and FIG. 4 is a block diagram showing the configuration of the embodiment. FIG. 5 is a flowchart showing the tab setting process in the embodiment. FIG. 5 is a flowchart showing the interval displaying process in the embodiment. 1... display means, 2... input means, 3... cursor movement means, 4... tab setting means, 5... counting Means, 6...Display control means. Figure 3 Figure 4

Claims (1)

[Claims] 1. Display means capable of displaying a scale and cursor as well as various information; input means for inputting various instructions including instructions for moving the cursor and instructions for tab setting; and from the input means. A cursor moving means that moves the cursor in accordance with an input cursor movement instruction, and a display means that sets a tab at the cursor position according to a tab setting instruction input from the input means and displays a symbol indicating the tab set position. a tab setting means for displaying on the scale set by the tab setting means; a counting means for counting the interval from the tab position set by the tab setting means to the current cursor position and the interval between the two set tabs, respectively; Display control means for displaying each interval counted by the means numerically near the scale and between the set tab and the current cursor and between the two set tabs. A character processing device characterized by: