JPH0520787B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a character processing device that processes sentences.

[Prior Art] Conventionally, there have been character processing devices that can input characters, etc. from a keyboard, create sentences using the input characters, and edit the sentences.

For example, when outputting a character string created by the above-mentioned character processing device to a printer, the line pitch is determined in advance for the entire text. Also, in other character processing devices, to change the line pitch for each line, insert a format statement before the line you want to change, and write the line pitch information in the format statement. This was to determine the line pitch for each line that follows. Therefore, in conventional devices, if you want to change the line pitch for each line, you have to insert a format statement each time, and if you insert a format statement, you have to review the entire layout. This will cause inconvenience.

[Objective] An object of the present invention is to provide a character processing device that is improved in view of the above-mentioned points.

An object of the present invention is to enable the format set at the margin mark position to be set for multiple lines after the line where the cursor is located, and to display format setting marks in place of the margin marks for easy viewing. It is possible to provide a character processing device that can perform format settings that can be easily changed later.

[Embodiments] Other objects of the present invention will become clear from the following description of embodiments with reference to the drawings.

Next, before describing embodiments according to the present invention, terms used in the embodiments will first be explained.

1 Left margin code LMM Displayed as a '△' mark on the CRT. Displays the leftmost possible input from the keyboard.

2 Right margin code RMM Displayed as a '△' mark on the CRT. Displays the rightmost input possible from the keyboard.

Next, an outline of one embodiment according to the present invention will be explained.

The device shown in the embodiment includes a keyboard, a processing section, a display device, and a printer.

All operations are performed using letter keys or function keys on the keyboard.

First, all states are initialized by the initialize key, and each function of this embodiment becomes executable.

By pressing the initialize key, left and right margin marks LMM and RMM are displayed on the display device, and all others are cleared. cursor
CM is located in the second column of the top row, and allows input of characters, etc. from the keyboard. Characters and the like entered from the keyboard are entered at the position where the cursor CM is displayed on the display device. The cursor CM advances one by one in accordance with the input of characters, etc. from the keyboard. The cursor CM can be advanced one by one using the cursor keys. The inputted character string can be output to the printer by pressing the print key. The input/output control described above can be easily realized using known techniques.

The operating methods for the functions of the present invention will be described below.

First, we will explain how to insert a row. cursor
By moving the CM to the left margin mark LMM and pressing the insert key there, you can create a line consisting of only spaces immediately before the line where the cursor is located.

This situation will be explained using FIGS. 3a and 3b. Third
As shown in figure a, there are already multiple characters A, B, C, DEF,
Assume that GHI is input. Use the cursor keys to move the cursor CM to the left margin mark of the second line
When you move to LMM and press the insert key, a new blank line will appear between the first and second lines, and the following lines will be moved down one line each to the third line.
It will look like Figure b.

Next, we will discuss how to delete lines. cursor
The line where the cursor is located can be deleted by moving the CM to the left margin mark LMM of the line you want to delete and pressing the delete key there.

This situation will be explained using FIGS. 4a and 4b. As shown in Figure 4a, if you want to delete the second line now, move the cursor CM to the left margin mark of the second line.
Move to LMM using the cursor keys. Then, by pressing the delete key, the second line disappears, and each of the following lines moves up one line, as shown in Figure 4b.
It will look like this.

Next, a method of changing the line pitch will be explained using FIGS. 5a, b, and c. Now, if you want to set the line pitch from the second line to the fourth line on the display screen to 5 mm,
Cursor CM to left margin mark LMM on second line
(Figure 5a). If you enter the number 5, 5 will be displayed in the left margin mark LMM, as shown in Figure 5b. Furthermore, in order to return the line pitch from the fourth line to the standard line pitch corresponding to the standard feed number of the printer, which will be described later, move the cursor CM to the left margin mark LMM of the fourth line and input the letter S. Now, only the second to fourth lines will have a line pitch of 5 mm, and the line pitches of the other lines will take the value of the standard line pitch.

Next, a method of specifying when printing adjacent upper and lower lines without gaps will be explained using FIGS. 6a, b, and c. Special patterns such as ⊥ ⊥ have already been input in lines 1 to 4 of Figure 6a, but
When printing these, it is of course necessary to adjust the character pitch in order to connect all the symbols, but this will not be discussed here. To print the upper and lower lines concatenated, first press the left margin mark on the first line.
Move the cursor CM to the LMM (Figure 6a).
If you then input the letter L (L indicates to print without any gaps), the letter L will be displayed in the left margin mark LMM above the cursor CM, as shown in Figure 6b. With this, the character pattern will be printed in a connected manner from the first line to the last line without any vertical gaps. However, if you want to return to the standard line pitch from the 4th line onwards, use the left margin mark LMM for the 4th line.
Move the cursor to CM and enter the letter S.
Then, as shown in Figure 6c, the left margin mark of the 4th line
S is displayed in the LMM, and the fourth and subsequent lines have the standard line pitch.

Next, we will explain how to display the beginning of a sentence. The cursor CM moves to the top of the screen by first operating the screen top key HPK once in the input character string. Then press the top key on the screen again.
When you operate HPK, the text is displayed on the screen from the beginning. That is, if the cursor CM is placed at the top of the screen in advance, it is possible to display the text from the beginning just by operating the screen top key HPK once.

The document that has been input and edited above is output to the printer by pressing the print key.

FIG. 1 is a block diagram showing an embodiment of a character processing device according to the present invention. Each component will be explained below. The KB is a keyboard consisting of text input keys CIK (for example, a group of keys arranged on a JIS keyboard) and a group of function keys for realizing various functions of this device.

As shown in Figure 2, the above function keys include the following function keys: the insert key IK for instructing the insertion or deletion of characters or lines;
It consists of a delete key DK, a cursor key CK for moving the cursor on the CRT, an initialize key INK for instructing to start work, and a print key PK for instructing printing. Further cursor key CK
Contains the screen top key HPK to move the cursor CM to the top of the screen.

The keyboard KB has an encoder function, and the information of the pressed keys is read by the processing unit CPU, which will be described later.

CR is the cursor register. The processing unit CPU, which will be described later, can read and write the contents of the cursor register CR. The CRT controller CRTC, which will be described later, has a function of displaying a cursor at a position on the display device CRT corresponding to the address stored here. The information stored in the cursor register CR is a serial number from 1 to 40, and the CRT controller CRTC changes this serial number to the number of lines and digits and displays them.

DBuF is a data buffer, which is a memory for storing text information input from the keyboard KB, and the information stored here is displayed on the display device CRT by the CRT controller CRTC, which will be described later. Used as refresh memory for CRT display devices. It can be read and written freely by the CPU.

Data buffer DBuF is 8×10W (W; Word)
(1W; 1 character), of which 8 x 5W
Only the following shall be displayed on the display device CRT.

The display of characters, etc. is 8 characters horizontally and 5 lines vertically.
They are correlated in order with the contents of 40 consecutive words out of the 80 words of the data buffer DBuF.
Furthermore, the data buffers DBuF are numbered sequentially from 1 to 80, with the first data being DBuF(1) and the next data being numbered sequentially from 1 to 80.
DBuF(2), and generally the Nth data is DBuF(N)
Expressed as. DR is a display register that instructs from which position in the data buffer DBuF to display on the CRT.As an example, when displaying the following 40 words from the 20th data, that is, DBuF(20), the DR It would be a good idea to set the value to 20.
The CRT controller CRTC displays the contents of 40 consecutive words on the CRT from the contents of the data buffer DBuF corresponding to the values stored here.

CRTC is a data buffer using a CRT controller.
Control is performed to display characters, etc. on the display device CRT according to the information stored in the DBuF, and to display a cursor on the display device CRT according to the information stored in the cursor register CR.

The CRT controller CRTC will be explained in more detail using FIG. 15. FIG. 15 is a block diagram illustrating a method of sequentially displaying 40 characters of information in the data buffer DBuF on a display device CRT using the value stored in the display register DR as a bias value. (However, since the method of displaying the cursor is well known, it will be omitted.) By inputting the timing signal H from the display device CRT, the character number D to be displayed on the display device CRT (in this example, 0 to
Value up to 39) and row number F of the character to be displayed
A controller CONT outputs various timing signals (not shown) for display, and a character number D output from the controller.
and output signal A from display register DR.
It consists of an adder circuit ADDR that performs addition with , and a shift register SR that converts parallel pattern information E output from character generator CG into a serial signal G.

The display number A indicates the first address in the data buffer of the character to be displayed on the display device CRT, and the output signal B of the adder circuit ADDR is the sum of that value and the character number D.
indicates the address within the data buffer of the character to be displayed on the display device CRT at that time. The output signal C of the data buffer DBuF, which is output as a result of accessing the output signal B as an address, becomes the code signal of the character to be displayed on the display device CRT at that time. The character generator CG receives the code signal C and the low number F from the controller CONT as input signals, and outputs a character pattern signal E (parallel information) of the corresponding low number of the corresponding character. The character pattern information E is converted into a serial signal G via the shift register SR and output to the display device CRT, so that the corresponding character is displayed.

When displaying characters, etc., character codes are changed into character patterns with reference to a character generator CG, which will be described later.

CRT is a display device, CRT controller
Characters and cursor can be displayed by CRTC.

CG is a character generator and is used to display characters on a display device CRT and output characters to a printer PRT. CRT controller
CRTC and printer controller (described later)
Used by PRTC.

PRTC is a printer controller, converts character code information from a processing unit CPU (described later) into a pattern by referring to a character generator CG, and outputs the pattern to the printer PRT.

However, the left margin mark LMM and right margin mark RMM are not printed.

The printer controller PRTC converts the ruled line code into a ruled line pattern and outputs it.

PRT is a printer which includes a thermal head 101, a carriage 102, a carriage drive belt 103, a carriage guide 104, as shown in FIG. 7a.
It consists of a printer mechanical section including a printing paper 105, a platen 106, a printing paper guide 108, etc., and a known control section (not shown) that controls these. The thermal head 101 consists of a 9×1 dot thermal element. In printing, it is possible to print a 9×7 dot matrix character pattern as shown in FIG. 7b.

The signal sent from the microprocessor CPU when feeding the printer is set so that the signal is fed by 1 mm per transmission of line feed information. This setting is due to restrictions imposed by the mechanical part of the printer.

PHS is a printer head detection device,
It is set in the carriage 102. The details will be explained using FIGS. 8a, b, and c. In FIG. 8a, 201 is a support plate that supports the head. 202 is a contact point with the head, which is connected to the power supply. 203 is also connected to a detection circuit, which will be described later, through a contact point with the head. 204 is also a contact point with the head and is grounded. 205 is a detection circuit which includes an address decoder and a bus driver.
AB, DB, and CB are address buses, data buses, and control buses, which will be described later. 206
is a head with vertical 3 mm characters, and 208 is a contact point with the head support plate. 207 is a head with vertical 4 mm letters, and 209 is a contact point with the head support plate. 210 is a screw and 211 is a screw hole. 8th
When the 10-point head shown in Figure b is set on the head support plate 201, the contacts 203 and 204
conducts, and the contact 203 is grounded.

Also, the 12-point head shown in Figure 8c is
When set on the head support plate 01, the contacts 202 and 203 are electrically connected, and the contact 203 is connected to the power source. That is, since the potential of the contact 203 changes by switching the head, the detection circuit 205
The signal given to the will also change. As a result, which head has been set is determined by CUP, which will be described later.
You can find out by

The CPU is a microprocessor that performs calculations, logical judgments, etc. Controls buses AB, CB, and DB, which will be described later.

AB is an address bus that transfers signals indicating the control target.

CB is a control bus that applies control signals to various control targets.

DB is a data bus that transfers various data.

The ROM is a control memory that stores the control procedures shown in FIG. 9 and subsequent figures, the printer's standard feed number SN, etc.

The RAM is a random access memory and is used for temporary storage of various data such as the insertion mode flag INFG, data number DN, feed number FN, etc. The insert mode flag INFG is automatically cleared to 0 when the power is turned on, and when the insert key is pressed after that, it has a value of 1, and when the insert mode is entered and a character is input, the character is inserted at the current cursor position. It will happen. When you press the insert key again, the insert mode flag INFG is cleared to 0, and from now on, even if you enter a character, it will only overwrite the character at the current cursor.

Next, the operation of this embodiment will be explained.

In this example, the insertion flag is automatically set when the power is turned on.
INFG is cleared to 0 and keyboard processing is configured to operate.

Each process will be specifically explained below with reference to the flowcharts from FIG. 8 onwards.

First, when a key on the keyboard KB is operated, the operated key is determined according to the following order, processing is performed for each key, and then the system enters a key wait state.

In step KB1, determine whether there is an input from the keyboard KB. If there is no input, the process returns to waiting for a key, and if there is input, the program moves to step KB2 and takes in the data from the keyboard KB.

In step KB3, it is determined whether the captured data is the cursor key CK. If YES, perform the cursor movement processing in step KB4, and if NO, proceed to the next step KB5.

In step KB4, the input cursor key CK
Move the cursor CM on the CRT screen according to the instructions.
When this process is completed, the process returns to waiting for a key.

In step KB5, it is determined whether or not the character key CIK has been operated. If YES, the process moves to step KB6 and displays the character input at the position of the cursor CM. When this process is completed, the process returns to waiting for key input. If step KB5 is NO, step KB7
Go to and determine whether the insert key IK was operated,
If YES, proceed to step KB8, perform insertion processing, and then proceed to wait for a key. If NO, next step
Moving to KB9, it is determined whether or not the deletion key DK has been operated. If YES, the program moves to step KB10, performs deletion processing, and then waits for a key. If the answer is NO, the process moves to the next step KB11, and it is determined whether or not the print key PK has been operated. If YES, step
Move to KB12 and print the created text. When this process is completed, the process goes to wait for a key. If NO, move to step KB15.

Next step KB4, KB6, KB8,
The details of KB10 and KB12 will be explained.

First, the process of step KB4 will be explained with reference to the flowchart of FIG. (This is cursor key input processing.) Step 4.1 Is the first key on the screen HPK? Step 4.2 Is the current cursor position at the top of the screen? Step 4.3 Move the cursor Step 4.4 Display the text on the screen from the beginning.
That is, the value of the display register DR is set to 1.

Step 4.5 Display the cursor commercial at the top of the screen. That is, the value of the cursor register CR is set to 1.

Next, the processing of step KB6 will be explained with reference to FIG. (This is character key input processing.) Step 6.1 Is the current cursor position at the left margin mark LMM? Step 6.2 The input character key code is 0,
1, 2, 3, 4, 5, 6, 7, 8, 9, S,
Is it either L? Step 6.3 Save the new character code corresponding to the input character key code to the data buffer.
Store in DBuF (CR). For example, if the number 1 is entered now, 1 will be displayed on the screen. For this reason, it is a good idea to store the character code 1 in the data buffer DBuF (CR). Here, from the character code 1
Conversion to the character code 1 can be easily obtained using mathematical processing.

Step 6.4 Is the insertion flag INFG 0? Step 6.5 Store the input character code to the data buffer DBuF (CR).

Step 6.6 The input character is inserted at the current cursor position. That is, the contents of the data buffer DBuF corresponding to the current cursor position are shifted backward one word at a time until the last data is reached. However, the positions of the left margin code and right margin code will not change. This will cause the last data buffer DBuF (79) to contain a character word.
The contents will be deleted.

Next, insert processing step KB8 will be explained with reference to FIG.

Step 8.1 Current cursor is left margin mark
Is it in the LMM position? Step 8.2 Move all the contents of the data buffer DBuF after the current cursor position to the subsequent data buffer DBuF by 8 words each, and move the data buffer DBuF corresponding to the current cursor position.
In the 8 words starting from (CR), a left margin mark code, 6 words of a space code, and a right margin mark code are stored in this order. By the above procedure, one line consisting of only the left margin mark LMM and right margin mark RMM will be inserted into the current cursor line, and subsequent lines will be inserted into the current cursor line.
It will be displayed so that it is shifted downward line by line. This operation also creates a data buffer.
Data that protrudes from DBuF will be automatically reduced.

Step 8.3 Is the insertion flag INFG 0? Step 8.4 Set the insertion flag INFG to 1.

Step 8.5 Clear the insertion flag INFG to 0.

Next, the deletion key input processing step KB10 will be explained with reference to FIG.

Step 10.1 Current cursor is left margin mark
Is it in the LMM position? Step 10.2 Delete the line where the current cursor is located. In other words, the contents subsequent to the data buffer DBuF (CR+8) at the beginning of the line following the above line are each shifted forward by 8 words.
Therefore, DBuF(CR+8) is transferred to DBuF(CR), then DBuF(CR+9) is transferred to DBuF(CR+1).
The operation of moving the last data to DBuF (80)
I will do it until Also, the last data DBuF
A space code is inserted into the contents of the 8 words from (72) to data buffer DBuF (80).

Step 10.3 Delete the character where the current cursor is located, leave the data buffer DBuF containing the right margin mark RMM and left margin mark LMM as is, and move all other contents one word back. shift. The last data buffer that contained a character word is replaced with a space code.

Step KB12 of the print process will be explained with reference to FIG. 14a.

Step 12.1 Set data number DN to 1.

Step 12.2 Is the content of the data buffer DBuF (DN) corresponding to the data number DN a space code? Step 12.3 Print 8 consecutive words, ie, 1 line, in the data buffer DBuF (DN).

Step 12.4 Data buffer DBuF (DN) is L
Is it the code? Step 12.5 The type of head set in the printer carriage is determined from the output of the detector 205, and the vertical size of the character corresponding to that head is set to the feed number FN.

Step 12.6 Data buffer DBuF (CN) is
Is it the code? Step 12.7 Set standard feed number SN to feed number FN.

Step 12.6 Data buffer DBuF (DN)
0, 1, 2, 3, 4, 5, 6,
Is it one of the 7, 8, or 9 codes? Step 12.9 Special character code 0, 1,...
9 Set the value of the number displayed in the feed number FN.

Step 12.10 Feed the printer as many times as feed number FN. printer 1
Since the feed amount per cycle is 1mm, it will be FNmm feed. Further data number
Add 8 to the DN to set the number corresponding to the first character of the next line. After completing this process, return to step 12.2 again.

In step 12.5 described above, further Figure 14b
This will be explained in detail with reference to .

Step 12.5.1 The vertical size of the text on the head set in the printer cartridge is 3 mm.
mosquito? Step 12.5.2 Set feed number FN to 3.

Step 12.5.3 Set feed number FN to 4.

Control as described above is performed for each operation key.

For example, in the case of inserting a row, the microprocessor CPU operates the cursor CM using the cursor key CK, determines the operation of the cursor key CK according to the control procedure shown in Figure 9, and selects the cursor key processing shown in Figure 10. , move the cursor mark CM as described above. This movement is continued until the cursor mark CM moves to the left margin code LMM as shown in FIG. 3a.

When the insert key IK is pressed after moving the cursor CM to the left margin mark LMM on the second line using the cursor key CK, the process moves to the insert process shown in Fig. 12 after passing through the keyboard processing shown in Fig. 9. After confirming the position of the left margin mark LMM, start the one-line insertion process. Create a new blank space between the first and second lines, and move each subsequent line down one line at a time, resulting in the result shown in Figure 3b.

Next, in the case of line deletion, the cursor key CK is operated as shown in FIG. 4a, and the cursor mark CM is moved to the left margin mark LMM by cursor processing. Next, when the delete key DK is pressed, the control procedure shown in FIG. 13 is read from the control memory ROM, and the second line is deleted and the third and subsequent lines are incremented by one line.

When the cursor is not on the left margin mark LMM during the above insertion/deletion, the character position indicated by the cursor is opened or deleted.

Next, the process of changing the line pitch will be explained. If you want to set the line pitch from the second line "DEF" to the fourth line "JKL" in Figure 5 a to 5 mm, move the cursor CM to the left margin mark LMM of the second line (Figure 5 a). Then operate the character key CIK,
The control procedure as shown in Fig. 11 is stored in the control memory ROM.
, and input "5" using the character key CIK. The display after input is shown in Figure 5b. Furthermore, in order to return the line pitch from the fourth line to the standard line pitch corresponding to the standard feed number of the printer, which will be described later, move the cursor CM to the left margin mark LMM of the fourth line and input the letter S. Now only the 2nd to 4th lines have a line pitch of 5mm,
The line pitches of other lines will take the value of the standard line pitch.

Printing control using the line pitch described above is shown in FIG. 14a,
This is performed by the control procedure shown in b.

Next, a method of specifying when printing adjacent upper and lower lines without gaps will be explained using FIGS. 6a, b, and c. Special patterns such as ⊥ ⊥ have already been entered in the 1st to 4th lines of Figure 6a, but when printing these, it is of course necessary to adjust the character pitch in order to connect all the symbols. I won't touch on it here. To print the upper and lower lines concatenated, press the cursor key CK and move the cursor CM to the left margin mark LMM of the first line.
Go with it.

Next, when the character key CIK is operated and the character L is input, the character L is displayed in the left margin mark LMM above the cursor CM, as shown in Figure 6b. This means that an instruction has been input to print the character pattern in a concatenated manner without any vertical gaps from the first line to the last line. Such an instruction is determined in the process shown in FIG. 14 and printed without spacing between lines. However, 4
If you want to return to the standard line pitch after the line, press 4.
Move the cursor CM to the left margin mark LMM of the row and input the letter S. Then, as shown in FIG. 6c, S is displayed in the left margin mark LMM on the fourth line, and this character is determined by the process shown in FIG. 14, and the fourth and subsequent lines are set to the standard line pitch.

Next, we will explain how to display the beginning of a sentence. If the cursor is not at the beginning of the text in the input character string, by operating the screen top key HPK once, the process moves to cursor processing and the cursor CM moves to the top of the screen. Furthermore, if you operate the screen start key HPK again, the text will be displayed on the screen from the beginning due to cursor processing.

Furthermore, if the cursor CM is placed at the top of the screen in advance, it is possible to display the text from the beginning just by operating the screen top key HPK once.

[Effects of the Invention] As detailed above, according to the present invention, the format set at the margin mark position can be set for multiple lines after the line where the cursor is located, and the format setting mark can be set at the margin mark. By displaying the text instead of , it is possible to provide a character processing device that can perform format settings that are easy to see and can be easily changed later.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a detailed view of the keyboard KB shown in FIG. 1, and FIGS. 3a and 3b are diagrams for explaining line insertion. FIGS. 4a and 4b are diagrams illustrating line deletion. Figure 5 a, b, c
is a diagram explaining the specification of line pitch. Figure 6 a, b,
c is a diagram illustrating the specification of line pitch according to character size. Figure 7a is the printer in Figure 1.
Detailed diagram of PRT. FIG. 7b is a diagram showing an example of the dot structure of characters printed by the printer. FIG. 8a is a detailed view of the carriage in the printer. Figures 8b and 8c are detailed views of the head. FIG. 9 is a diagram showing a control procedure showing key processing. 10th
The figure shows cursor key processing. FIG. 11 is a diagram showing character key processing. FIG. 12 is a diagram showing insert key processing. FIG. 13 is a diagram showing deletion key processing. 14th
Figures a and b are diagrams showing print processing. FIG. 15 is a detailed view of the vicinity of the CRT controller CRTC in FIG. 1. RAM...memory, DR...display register,
CR...Cursor register.

Claims (1)

[Scope of Claims] 1. Storage means for storing text data; Display means for displaying the text data stored in the storage means and margin marks corresponding to each line of the text data; an instruction means for specifying a desired line of the text data by specifying a margin mark of a desired line among the margin marks set by the instruction means; and a format of the lines after the line specified by the instruction means. A format setting means for collectively setting the same format for text data that has not been set, and a format setting mark representing the format set by the format setting means,
A character processing device comprising display control means for displaying a margin mark in place of a margin mark of a desired line indicated by the cursor.