JPS59173831A - Editing device of document - Google Patents

Abstract

PURPOSE:To simplify the procedure of the correction of a document by providing priority to a successively inputted character or control code and erasing a precedently inputted control code when the succeeding character or control code is contradict with the preceding control code. CONSTITUTION:Data such as document information inputted from a keyboard KB are stored in a buffer BUF. A CRT controller CRTC converts a character code stored in a buffer BUF into pattern data, which are displayed as characters or codes on a display device CRT. A microprocessor CPU controls respective constitutional elements in accordance with respective control procedures stored in a control memory ROM. When a character or a control code contradict with the precedently inputted control code is successively inputted, priority is provided to the succeeding character or control code and the preceding control code is erased.

Description

TECHNICAL FIELD The present invention relates to a document editing device that edits a document by displaying input character strings and control symbols for the input character strings on a display device.

BACKGROUND ART Conventionally, in this type of document editing apparatus, when a character or control symbol that contradicts a previously input control symbol is input, the later manually inputted character or control symbol is ignored. Therefore, when attempting to input a character or control symbol that contradicts a previously input control symbol for document correction, it is necessary to first delete the previously input control symbol.

For example, on a display screen as shown in FIG.
Add a new string “WOR” to the right of the line break mark indicated by
When trying to input "D", first move the cursor CM to the position of the line feed mark O, delete the Q line mark O first so that it remains in Figure 1 (B), and then
A character string had to be entered as shown in Figure (C). Therefore, the operating procedure for correcting written readings has become complicated, making it difficult to operate, and even causing erroneous operations.

Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks, and when a character or control symbol that contradicts a control symbol that has already been entered manually is input, priority is given to the later input character or control symbol to eliminate the contradiction. To provide a document editing device which facilitates the operation procedure when correcting a document by re-editing the character string to a character string without .

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

Figure 2132 shows an example of the configuration of the document editing device of the present invention,
Here, the CPU is a microprocessor that performs processing and logical judgment for processing 5 characters, and sends data via the address bus AB, control bus CB, and data bus DB.
Control each constituent element connected to those paths. The address bus AB transfers an address signal that indicates the control target of the microprocessor CPU, and the control bus CB
transfers control signals to the control target of the microprocessor CPU, and data bus DB transfers various data between each component.

ROM is a control memory, and the microprocessor sensor CPU
Various control procedures etc. are memorized in advance.

RAM is writable random access memory.
It is used as a work memory for temporary storage of various data from each component and for calculations and logical judgments by the microprocessor CPU. X is a general-purpose register provided in the random access memory RAM, and is used for temporary storage of various data.

KB is a keyboard for inputting documents, and the key information pressed from this keyboard is read by the micro processor CPU. For example, as shown in FIG. 3, the keyboard KB includes a character input key group CH, and a function input key group including a cursor key CK and a carriage return key CRK. The character input key group CH is made up of, for example, a JIS keyboard, and character symbols such as number characters and kana can be entered manually using alpha bent keys, hiragana keys, katakana keys, and the like. cursor key CK
is a key for moving the cursor position, and carriage return key CRK is a key for line feed.

CR is a cursor register that writes the position of a cursor to be displayed on the surface of a display device CRT, which will be described later.
I can read and read the contents. This cursor register CR is called a line number register (row direction cursor register) CRL that stores data representing the number of lines.

It has a column number register (digit direction cursor register) C:RC' that stores data representing the number of digits.

BtlF is the document information input from the Keyboard KB +I[i
It is a buffer that stores data of 18x5W.
(Word is abbreviated as W) has used clothes, and 5 rows and 16 digits of data are stored in the form of a character code.#! I□ru.

C, F7 The content in BtlF shall be expressed as B(L, C), as shown in No. 41m(A), where L is 1
C is an integer from 1 to 18 to represent a row (or column).

CG is a character generator that generates character signals such as letters, symbols, and cursors to be displayed on the display device CRT, and stores all patterns corresponding to the character codes used in this example.

CRTC is a CRT controller that drives and controls the display device cRT, and displays a cursor on the display surface of the display device CRT according to cursor data stored in the cursor register CR. Furthermore, CRT controller roller CRT
C converts the character code data stored in the buffer BIIF into pattern data by referring to the character generator CG, and displays the pattern data as characters or symbols on the display device CRT.

At this time, on the display device CRT, for example, as shown in FIGS.
It is assumed that the display corresponds to the data in tIF.

A CRT display device is an image output device using a cathode ray tube, liquid crystal, light emitting diode, etc.
Under the control of the TC, a cursor is displayed according to the data number in the cursor register CR, and characters or symbols are displayed according to the data in the buffer BUF.

Next, an example of the operation of the 2.21st inventive device will be described.

When the power is turned on, control procedures stored in the control memory ROM are sequentially executed, initialization processing is performed to move the cursor home position and clear the screen of the display device CRT, and input from the keyboard KB is made possible. In other words, when the power is turned on, the cursor register CR
Initialize each of the row number register CRL and column number register GRC of Hanwha BUF to '1' and move the cursor CM to the upper left corner of the display screen of the display device CRT, which is the home position. [B(L,
Input a space code in C) to clear the screen of the display device CRT. Note that L=1 to 5 and C=an integer of -1 to 16.

When the initialization process described above is completed, the main routine is started and various processes are performed on the input data from the keyboard KB. At this time, cursor key C
In response to the press of the carriage return key CRK, cursor key manual processing is performed to move the cursor CM to the operator's desired position on the display surface of the display device CRT, and in response to the press of the carriage return key CRK, the cursor CM is moved to the current cursor position. Carriage return input processing is performed, such as moving the existing line to the first column of the next line.

The above-mentioned cursor key manual processing is started in response to pressing the cursor key CK, and as shown in the flowchart of FIG. 5, the column number register CRC is set in the first step 101.
After incrementing by '', it is determined in step 102 whether the value of the column number register CRC is greater than the maximum digit "16", and if the determination is negative, the cursor key processing is terminated and the process returns to the main routine. .

If step 102 is affirmative, 1 column number register CR
Since the value of C exceeds the maximum digit, the value of the column number register CRC is reset to "i" in the next step 103, and the row number register CRL is incremented by "1" in step 104. . Next, in step 105, it is determined whether the value of the line number register CRL is greater than the maximum value of 5'', and if the determination is negative, the cursor processing is terminated and the process returns to the main routine. If the determination in step +05 is affirmative, it means that the value of the row number register CRL exceeds the maximum, so in the next step 106, the value of the row number register CRL is
“l ++” to end the cursor key manual processing and return to the main routine. Therefore, the cursor key CK
The cursor CM moves on the display screen in the direction of the digit 17-
Move and start a line, return to the home position, and repeat the movement.

On the other hand, the carry/return key input process is activated in response to pressing the carry/return key CRK, and as shown in the flowchart of FIG.
+ At the current cursor position B(L
, C) That is, B (CRL, CRC) D* Writes the return code. Then general register X
After storing the value of the column number register CRC of the cursor register CR in , the value of the register X is incremented by 1'' in step 203.

In the following step 204, it is determined whether the value of the register
17) Write a space code at position B (C: R1,, As a result, all existing character strings and carriage return codes in the digits to the right of the digit where the carriage return code was input on the display screen of the display device CRT are erased.

When an affirmative determination is made in step 204, the process proceeds to step 206, where the value of the column number register CRC is stored in register X again, and in the next step 207, the value of column number register CRC is stored in register
Decrement the value by "1" and proceed to step 2
In step 08, it is determined whether the value of register X is greater than zero, and if the value of register X is greater than zero, the next step 20
Proceed to step 8, determine whether the contents of position B (CRC, X) of buffer BUF is a carriage return code,
If it is a carriage return code, in step 210, a space code is stored in the buffer location "σj, B (C: RC, If the judgment is negative, the process returns to step 207 and repeats the above process, and if it is judged in step 208 that the value of register Existing carriage return codes in the digits to the right of the input digit are erased.

In step 211, the value of the column number register CRC is set to "1".
In the next step 212, the value of the line number register CRL is incremented by °°1, and then in step 213, the value of the line number register CRL is set to maximum.
If the determination is negative, the carriage return key manual processing is terminated and the process returns to the main routine. If the determination is affirmative, the value of the line number register CRL is set to "l" in the next step 214. Reset the carriage return key to end the manual processing and return to the main routine. Through the above steps 211 to 214, the cursor is moved to the first digit (
or home position).

After moving the cursor CM at 17 as described above, when a key in the character input key group OH is pressed, the input data such as letters, numbers, and other symbols corresponding to that key are sent to
Store in BUF from the position indicated by cursor CM, and at the same time store C
RT controller CRC: Displays a pattern created in text or numerical data on the screen of the display device CRT via T or the like.

Now, as shown in Figure 4 (A), the character string is stored in the buffer BU.
It is assumed that the information is input to F and displayed on the display screen of the display device CRT. Here, r JAPANESE @
” and the same prefecture as the desired character, e.g. r
If you want to input WORDJ, move the cursor to the beginning of the position where you want to input the character, as shown in Figure 4 (A), and input the character rWj, as shown in Figure 4 (B). As shown, the carriage return code ○, which has become meaningless after inputting the character rWJ, is deleted, and subsequent character input is changed to i! 1! Execute the character input process that allows you to control the characters.

Next, an example of the procedure of the above-mentioned character input processing will be explained with reference to the flowchart of FIG. 7.

First, the character code 15 corresponding to the character key pressed by the operator in step 301 is written to position B (CRL, GRC) of the buffer BUF at the current cursor position.
In the next step 302, the value of the column number register CRC of the cursor register CR is stored in the general-purpose register X. Next, in step 303, the value of register X is decremented by 1'', and in step 304, it is determined whether (1? In step 305, buffer B
It is determined whether the content at position B (C:RL,

” - Go to step 305 described above. Fa position B (
When it is determined that the data stored in CRL,
Write the space code in L, X), step 307
Proceed to cursor key processing. Also, if it is determined in step 304 that the value of jump.

In step 307, the cursor key process shown in FIG. 5 is executed to advance the cursor to the next digit, and the process returns to the main routine.

As a result, if a carriage return code exists on the right column of the line where the cursor CM is located on the display screen, that carriage return need will be erased.

Therefore, according to this example, when inputting a character string on the same line following a carriage return code, there is no need for the operator to instruct deletion of the carriage return code before inputting characters, and the character string can be input at the desired position. If you enter characters in
The carriage return key in the digit to the right of the input character is automatically erased, and subsequent characters can be input continuously, making the operation easier when correcting documents and improving the operation speed. In addition, the number of erroneous inputs can be reduced.

In this example, only the carriage return key is used as the control symbol to be erased, but other control symbols such as page end codes (page break symbols) can be handled in the same way, and the same effect as described above can be achieved. can get.

Effects (2) As explained above, according to the present invention, when a character or control symbol that is inconsistent with the previously input control symbol is input manually, the character or control symbol input later is Since the first inputted control symbol is erased with priority given to ``-'', the effect of simplifying the procedure for correcting a document can be obtained.

[Brief explanation of drawings]

1 (A) to (C) are explanatory diagrams showing an example of the operation of a conventional device, FIG. 2 is a block diagram showing an example of the configuration of the document editing device of the present invention, and FIG. 3 is a keyboard KB shown in FIG. 2. 4(A) and 4(B) are explanatory views showing an example of the content of the display screen of the eight-face BUF of FIG. 2 and the display device CRT, and FIG. 5 is a plan view showing an example of the arrangement of the FIG. 6 is a flowchart showing an example of the operation of the cursor key manual processing of the device shown in FIG. 2, FIG. 7 is a flowchart showing an example of the operation of the carriage return key manual processing of the device of FIG. 2 is a flowchart showing an example of the operation. CPU...Micro processor sensor, ROM...Control memory, RAM...Random access memory, X...General purpose register, KB...Keyboard, CH...Character input key group, IJ RK・...Carriage return key, CK...
Cursor key, CR...Cursor register, CRL...Row number register (row direction cursor register), CRC...Column number register (digit direction, cursor register), BUF...7k software, CRTC...・CR controller, CG...character generator, CRT...display device, CM...cursor, 0...control symbol (carriage return code). Patent applicant: Canon Co., Ltd. (Figure 4, page 111) Door; , fOf /lθ2

Claims (1)

[Scope of Claims] 1) In a document editing device that edits a document by displaying an input character string and a control symbol for the character string, if a character or control symbol that is inconsistent with the control symbol that has already been input is input. 2. A sentence-2 editing device characterized by comprising means for erasing the previously inputted control symbol by placing the later inputted character or control symbol before the IC. 2. The apparatus according to claim 1, wherein the control symbol is at least one of a carrying rectangle indicating a line break and a page end symbol indicating a page break; d) a text editing device; .