JPH01194058A - Document display control system - Google Patents

Abstract

PURPOSE:To suppress the generation of an unintended space line due to a line feed character on a display picture by setting up the (m+1)th and (m+2)th display digits following the m-th digit in addition to the 1st-m-th display digits set up correspondingly to the number (m) of characters in a line. CONSTITUTION:Only when a character to be displayed following the m-th digit out of the 1st-m-th display digits 21 corresponding to the number (m) of characters in an optionally specified line by a document format is a character inhibited from being positioned on a line head or a forced line feed character, the character to be successively displayed is displayed on the (m+1)th digit 22 to be the succeeding digit in the same line without displaying the character on the 1st digit of the succeeding line. Only when a character to be displayed following the character to be displayed on the (m+1)th digit is a forced line feed character, the character to be successively displayed is displayed on the (m+2)th digit 23 to be the succeeding digit in the same line without displaying the character on the 1st digit of the succeeding line. Consequently, the positioning of a line feed character on a line head can be automatically suppressed at the time of forming or editing a document and the generation of an unintended space line can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Field of Industrial Application) The present invention relates to a document display control method suitable for a document processing device that handles documents including line feed characters.

(Prior art) Generally, document processing devices that can handle Japanese documents, such as Japanese word processors, have a display function that displays documents on a screen, and users can create new documents while looking at the display screen. , it is now possible to perform additions, proofreading (editing), etc. to the created document. In this type of document processing device, a line feed character indicating a forced line break is displayed on the screen with one character's worth of display space, just like a normal character, so that the user can clearly see the forced line break on the screen. There is.

However, in a system that treats line feed characters the same as other characters, for example, if a line with a line feed specified includes characters that extend to the end of the line, the line feed character will be displayed at the beginning of the next line.
There was a drawback that blank lines that were not intended by the user were generated. In such a case, the user must delete the newline character to eliminate the unintended blank line.
It was complicated. Furthermore, if it becomes necessary to change the number of characters per line (the number of characters that make up one line) in a document in which unintended blank lines have been deleted as described above, the line feed characters will have been deleted. , a string that required a line break was not broken and was concatenated with the next string, so the line break character had to be inserted again. The above problem also occurs when a new line character is moved to the beginning of a line by inserting or deleting characters in editing an already created document, or by changing the number of characters per line.

(Problems to be Solved by the Invention) As described above, conventional screen displays have treated line feed characters in the same way as normal characters, which may result in blank lines that are not intended by the user.

This invention was made in view of the above circumstances, and its purpose is to provide a document display control method that prevents unintended blank lines from occurring on the display screen due to line feed characters during document creation or document editing. It's about doing.

[Structure of the Invention] (Means for Solving the Problems) This invention provides display digits other than the first to m-th digits, which are set corresponding to the number m of characters in one line that forms part of the document format. To,
The (m+1)th and (m+2)th display digits following the mth digit are set, and it is required that the input characters from the input means for inputting the document to be displayed one character at a time are not positioned at the beginning of a line. If the input character is either the first character indicating a forced line break or the second character indicating a forced line break, and the character preceding the input character is displayed in the m-th digit, the input character is
Not the first digit of the next line, but the (m+)th digit of the same line as the preceding character
1) Displayed in the digit, the above input character is the above second character,
Furthermore, the preceding character is the first character and the (m+1
) digit, the input character is displayed in the (m+2)th digit on the same line as the preceding character.

(Operation) According to the above configuration, there is no possibility that the first character indicating a line break will be located at the beginning of a line (therefore, no unintended blank line will occur).

(Embodiment) Hereinafter, a case where an embodiment of the present invention is implemented in a Japanese word processor will be described with reference to the drawings. FIG. 1 shows a block configuration around a display control section of a Japanese word processor, and 11 is a display monitor for displaying Japanese documents and the like. As shown in FIG. 2, the display screen of the display monitor 11 in the Japanese document processing mode shows the number of characters per line (the number of character digits constituting one line), which is one of the document formats.
In addition to the 1st to mth display digits (hereinafter referred to as ordinary digits) corresponding to When a character (hereinafter referred to as a character not allowed at the beginning of a line) is displayed in the display digit (m+1)th digit (hereinafter referred to as a special digit) 22, or a character not allowed at the beginning of a line is displayed in the special digit 22, Only the display of newline characters is allowed (
m+2) digit display digits (hereinafter referred to as line feed digits) 23 are set.

Referring again to FIG. 1, 12 is a display character input section for inputting a document to be displayed on the display monitor 11 one character at a time;
14 is a line pointer (R pointer) that designates the display line position R of the input character from the display character input section 12, and a digit pointer (C pointer) that also designates the digit position C. 15
16 is a character discrimination unit that determines whether the input character from the display character input unit 12 is a character that cannot be started at the beginning of a line, a line feed character, or any other character; A display digit discriminator 17 that discriminates whether ≦m1C-m+1 or C-m+2 indicates the discrimination results of the character discriminator 15 and the display digit discriminator 16, and the contents of the R pointer 13 and C pointer 14. In particular, it is a display control section that determines the display position of characters input from the display character input section 12 and displays the characters at the determined position.

Next, the operation of the configuration shown in FIG. 1 will be explained with reference to the above-described screen layout diagram in FIG. 2 and the flowchart in FIG. 3.

The display character human power unit 12 performs manual processing to manually input the display target document character by character, and when one character is input, it outputs the input character to the character discrimination unit 15 and the display control unit 17, and displays the input character. The control unit 17 is notified. The character discrimination section 15 determines whether the input characters from the display character input section 12 are
It is determined whether the character is a non-startable character, a line feed character, or any other character. The character discrimination result of the character discrimination section 15 is notified to the display control section 17.

The display digit position C of the input character from the display character input section 12 is
It is specified by the C pointer 14. Display digit determination unit 16
In this case, the display digit position C indicated by the C pointer 14 is C≦mSC−
It is determined whether it is m+1 or C-m+2. The display digit discrimination result of the display digit discrimination section 16 is notified to the display control section 17.

Now, the display control section 17 receives one from the display character input section 12.
Character input notifications are monitored (step Sl), and when a single character input notification is detected, based on the determination results of the character discrimination section 15 and display digit discrimination section 16, and the contents of the R pointer 13n and the C pointer 14, The following single character display process is performed.

First, when the display digit discriminator 16 discriminates 05m, that is, when the next display target digit position C is any of the 1st to rnth digits, which are the ordinary digits 21, the display control unit 17
detects this in step S2, and inputs the input character from the display character input section 12 (into A corresponding pattern image) is displayed (step S3). Next, the display control unit 17 checks whether the character displayed in step S3 is a line feed character (based on the determination result of the character determination unit 15).
4) If YES, the R pointer 13 is incremented by 1, the C pointer 14 is set to 1, and the character position to be displayed next is advanced to the first digit of the next line (step S5). On the other hand, the determination in step S4 is N.

If so, the display control unit 17 increments the C pointer 14 by +1,
The next character position to be displayed is advanced to the next digit position (step S6). Therefore, for example, when a character other than a line feed character is displayed in the mth digit, the next digit position becomes the (m+1)th digit in step S6. When the display control unit 17 executes step S5 or S6, the display character input unit 12
The end of one-character display is notified to the user, and the process returns to step S1 to wait for notification of the next one-character input.

When the display character input unit 12 is notified by the display control unit 17 that the display of one character is finished, if there is a next character to be displayed, the display character input unit 12 inputs the same character, outputs it to the character discrimination unit 15 and the display control unit 17, and displays the same character. Notify the control unit 17 that one character has been input.

Next, a case where C-m+1 is determined by the display digit determination unit 1B, that is, a case where the next display target digit position C is at the (m+1)th digit, which is the special digit 22, will be described. The display control unit 17 uses the display digit determination unit 16 to determine that C−m + 1
When it is detected that the character has been discriminated (step S8), it refers to the discrimination result of the character discrimination section 15 and checks whether the input character from the display character input section 12 is either a line break or a character that cannot start a line. (Step S9). Step S
For example, as in the 0th row shown in FIG.
If the character input from the display character input section 12 next to the character displayed in the digit ("a") is neither a line break character nor a character that cannot be started at the beginning of a line (in this case, the character "ru"), the result is NO.

In this case, the display control unit [7 performs the same process as step S5 to change the character position to be displayed next to the first digit of the next line (step 5lO), and inputs the display character to the second digit position of this line. The input character ("ru") from section 12 is displayed (step S3). The operation after step S3 is the same as in the case of 05m described above.

On the other hand, if the determination in step S9 is YES, for example, as in the (n+2)th line shown in FIG. 12
If the character input from is a line feed character, or as shown in the (n+3)th line shown in FIG. This is the case when the input character is a character that cannot start at the beginning of a line, such as a period (.). In this case, the display control unit 17 skips step SIO, proceeds to step S3, and places the input character (second
In the example of the (n+2)th line in the figure, the line feed character, the (n+3)th line
In the line example, a period (.) is displayed.

The operation after step S3 is the same as in the case of 06m described above. Therefore, if a line feed character is displayed in the (m+1)th digit, the R pointer 13 is incremented by 1 and the C pointer 14 is set to 1, and the character position to be displayed next is set to 1 in the next line. Advance to the first digit. On the other hand, if a non-startable character such as a period (.) is displayed in the (m+1)th digit, the C pointer 14 is incremented by 1, and the next character position to be displayed is at the next digit position. is advanced to the (m+2)th digit (line feed digit 23).

Finally, a case will be described in which the display digit determining unit 16 determines C-m+2, that is, the case where the next display target digit position C is at the (m+2)th digit, which is the line feed digit 23. The display control unit 17 uses the display digit determination unit 16 to determine that C-m +
When it is detected that 2 has been determined (step 5LI),
With reference to the discrimination result of the character discrimination section 15, the display character input section 1
It is checked whether the input character from 2 is a new line character (step S12).

If the determination in step SL2 is YES, that is, as in the (n+3)th line shown in FIG.
If the character inputted from is a line feed character, the display control unit 17 proceeds to step S3 and inserts the input character (
In the example of the (n+3)th line in FIG. 2, a line feed character) is displayed. The operation after step S3 is the same as in the case of 06m described above. Therefore, in this example where a line feed character is displayed at the (m+2)th digit, the R pointer 13 is incremented by 1 and the C pointer 14 is set to 1, and the next character position to be displayed is set to the next line. Advance to 1 digit. On the other hand, if the determination in step S12 is NO, that is, the (m+1
) If the character inputted from the display character input section 12 next to the character displayed in the digit is not a line feed character, step S10 is performed, and the display position is changed to the first digit of the next line. . Then, when step SIO is executed, one character display in step S3 is performed.

[Effects of the Invention] As described in detail above, according to the present invention, the input to the m-th digit of the first to m-th display digits corresponding to the number m of characters in one line arbitrarily specified in the document format. Only when the character to be displayed next to the character display is either a non-startable character or a forced line break character, the (m+1)th digit, which is the next digit on the same line, instead of the first digit on the next line. , display the next character to be displayed, and only if the next character to be displayed after displaying the character in the (m+1)th column is a forced line break character, the next character to be displayed is displayed in the same line instead of in the first column of the next line. The next display target character is displayed in the next digit (m+2), so when creating or editing a document, or even when changing the number of line characters, which is one of the document formats, line break Automatically avoid positioning the newline character at the beginning of a line without paying equal attention to character position.
This can prevent unintended blank lines from occurring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a screen layout for displaying documents on the display monitor shown in FIG. 1, and FIG. 3 is a flowchart for explaining the operation. be. 11...Display monitor, 12...Display character input section, 1
3...R pointer (row pointer), 14...C pointer (column pointer), 15...character discrimination unit, 16...
・Display digit discrimination unit, 17...Display control unit, 21...Ordinary digit, 22...Special digit, 23...Line feed digit. Applicant's agent Patent attorney Takehiko Suzue Notice of termination of 1-character display

Claims (1)

[Claims] Display digits from the 1st digit to the m-th digit are set corresponding to the number m of characters in one line that forms part of the document format, and the (m+1)-th and (m+2)-th digits following the m-th digit are displayed. A display monitor having a display screen on which digits are set, an input means for sequentially inputting a document to be displayed on the display monitor one character at a time, and a character input from the input means that is not positioned at the beginning of a line. character discrimination means for discriminating whether the requested first character, a second character indicating a forced line break, or another third character; If the character discriminating means determines that the input character is a character, only when the character preceding the input character is displayed in the m-th digit, the input character is displayed in the position (()) on the same line as the preceding character. m+1) digit, and when the character discrimination means determines that the input character from the input means is the second character, the character preceding the input character is the second character. Only when the input character is the first character and is displayed in the (m+1)th digit, the input character is
+2) A second display control means for displaying characters in the digits, and displays characters in digit positions beyond the last digit of the display digits set corresponding to the number of characters in one line according to the type of characters to be displayed. A document display control method characterized by: