JPH06318204A - How to delete characters in created document - Google Patents

Abstract

(57) [Summary] [Purpose] By only operating one type of delete key, normal pre-delete for continuous input and deletion of the character on the cursor during editing are automatically used. To provide a method for deleting characters in a created document, which enables efficient deletion work and contributes greatly to operability. [Structure] When the delete key 10 is pressed (n3: YES) and there is a character on the cursor 7 (n5: YES), one character on the cursor 7 is deleted (n6), and the text on the right of the cursor 7 is displayed. Shift each character to the left by one character (n7) and set the mode to "delete" (n8). If there are no more characters on the cursor 7 (n5: NO), the mode is switched to "previous deletion" (n1) and if there is a character on the left side of the cursor 7 (n10: YES), the cursor continues. 7 The character on the left can be deleted (n11).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of deleting characters in an input prepared document in a document preparation device such as a typewriter or word processor.

[0002]

2. Description of the Related Art FIG. 6 to FIG.
This will be described with reference to FIG.

FIG. 6 shows an example of an influential device in a conventional prepared document device. This input device is a display (hereinafter referred to as a drawing) 1 for displaying an input text and "1".
To "0", the numeric key 2, the hiragana / katakana / alphabet character key 3, the delete key 4 for deleting the character at the cursor position on the screen, and the cursor at the right end of the entered document. When the character is located next to the character, a front delete key 5 for deleting the character on the left side of the cursor, that is, the rightmost character, and a function key 6 for instructing movement of the cursor and execution of various functions are provided. ing. Then, the delete function of the input text is performed by the delete key 4 and the previous delete key 5 with reference to the cursor on the drawing.

First, the state of deleting the character on the cursor with the delete key 4 and deleting the right part from the middle of the text will be described with reference to FIG. 7. As shown in FIG. If the delete key 4 is pressed once while the cursor 7 is at a certain character position in the middle of the text, the character on the cursor is deleted and the character on the right side of the cursor 7 is only one character. Shifted to the left. That is, the basic function of the delete key 4 is to delete the character on the cursor and shift each character on the right side of the cursor by one character to the left.

Thus, when the delete key 4 is pressed a plurality of times, characters are deleted one after another, and when the delete key 4 is pressed with no characters left on the cursor, a warning sound is emitted and the state does not change.

A flowchart (procedure) for executing this operation is shown in FIG. A program for executing this flowchart is stored in an IC memory (ROM) or the like equipped in the document creation device, and the program in the memory is read based on a command from the microprocessor (CPU) to control the entire system. It is supposed to be executed.

Explaining the flowchart of FIG. 8, a key scan operation is performed (step S1), it is checked whether or not the delete key is pressed (step S2), and if it is not the delete key, another key process is executed (step S1). S3), in the case of the delete key, it is checked whether or not there is a character on the cursor (step S4).

If there is a character on the cursor, that one character is deleted (step S5), and then each character of the text on the right of the cursor is shifted left by one character (step S6), and the process returns to step S1. On the other hand, if there is no character on the cursor in step S4, a warning sound is emitted to notify the operator of the malfunction (step S7), and then the process returns to step S1.

Next, the manner of pre-deleting with the pre-deleting key 5 will be described with reference to FIGS. FIG. 9 shows deletion from the end of the text, and FIG. 10 shows deletion from the middle of the text to the left. As can be seen from these figures, the basic function of the front delete key 5 is to erase one character to the left of the cursor and shift each one character of the text to the right of the cursor to the left by one character.

A flow chart for executing this operation is shown in FIG. Here, the same number is attached to the above-mentioned ten-person time step, and it is checked whether or not the previous delete key is pressed instead of the above-mentioned step S2 (step S20). Is checked (step S40), one character to the left of the cursor is deleted instead of step S5 (step S50), and the cursor is shifted to the left by one character (step S51). . Others are the same as the above. As described above, the functions of deleting and previous deleting are provided so that the cursor is always shifted to the position next to the rightmost character of the document (that is, the non-input portion) during continuous input. Since it has, deletion of characters in the middle of the document at the time of editing,
This is because it is possible to promptly deal with both the deletion of the last input character at the time of continuous input.

[0011]

However, according to such a conventional deletion method, the operator has to use two kinds of keys, the deletion key 4 and the previous deletion key 5, for the deletion. However, as described below, there was a difficulty in terms of operability.

That is, for example, if an input error is made during continuous input of text, the input error, that is, the operation of the previous delete key, not the operation of the delete key, coincides with the normal sense of "delete if mistaken". Not doing so was also a factor that could prevent an improvement in input work efficiency. In other words, usually, during continuous input, you often notice an error immediately after pressing the key, but after noticing the mistake, you should not press the delete key reflexively and select the previous delete key. You have to make a judgment. However, making such a selection judgment is likely to interrupt the thinking and lead to a reduction in the input effect.

The present invention solves the above problems, and provides a character deletion method for a created document in which an accurate deletion operation is always performed by only one type of deletion key when deleting input text. The purpose is to do.

[0014]

In order to achieve this object, in the method of deleting characters in a created document according to the present invention, the position for inputting characters is displayed by a cursor on the display screen for displaying the created document. As a reference, the input character is deleted by operating the delete key, and when the cursor on the screen is at the position next to the last character of the created document, the delete key is used to delete the last character. Before deleting the character of, delete the character on the cursor and execute this deleting work when moving the cursor to the middle of the created document and deleting from the middle of the document with the delete key When the same screen state as that of the previous deletion work is brought about by the above, the previous deletion work is switched over so that the last character can be continuously deleted.

[0015]

In the character deletion method for a prepared document of the present invention having the above-mentioned structure, when the cursor on the display screen is located next to the last character of the prepared document, the delete key is pressed. , Deleting the last character is executed. When the cursor is moved to the middle of the created document and the deletion key is used to delete from the middle of the document, the character on the cursor is deleted. When the same screen state as that of the previous deletion work is brought about by the execution of this deletion work, it is automatically switched so that the previous deletion work can be executed.

According to this method, it is possible to deal with deletion of an input error during continuous input or deletion of a character on the cursor in the middle of text during editing by operating the same one delete key. .

[0017]

FIG. 1 shows an example of an input device for carrying out the method of the present invention. The device main body is provided with one delete key 10 instead of the above-mentioned two kinds of delete keys and the previous delete key. To have a function equivalent to that of the above-mentioned two types of keys, and based on a flow chart (procedure) described later, the positional relationship between the input characters and the cursor on the screen is judged by the microprocessor (CPU) of the main body of the apparatus and appropriately I try to use different functions. Also, the display (screen)
1, other numeric keys 2, character keys 3, and function keys 6 are provided as described above.

Next, the state of the deleting method of the present invention will be described with reference to FIGS.

FIG. 2 shows a case where the character on the cursor is deleted and the right part is continuously deleted from the middle of the text.
Each time the key is pressed, the character on the cursor 7 is deleted, and each character on the right side of the cursor 7 is shifted one character to the left. When there is no character on the cursor 7, that is, when there is no character to be deleted, when the delete key 10 is pressed down, a warning sound is emitted, the operator is informed of a malfunction, and the status does not change. This operation is the same as that of FIG. 7 described above, although the used key is different.

FIG. 3 shows an example of deleting characters from the end of the text, and shows how characters on the left side of the cursor 7 are deleted (that is, deleted before) when, for example, the user notices immediately after the input during continuous input. That is, when the cursor 7 is at the next character position at the end of the text and the delete key 10 is operated in this state, the pre-delete operation is automatically performed. This operation is the same as that in FIG. 9 described above, although the used key is different.

FIG. 4 shows an example of deleting a character on the cursor.
Each time the delete key 10 is pressed, the character on the cursor 7 is deleted and each character on the right side of the cursor 7 is shifted left by one character. The final result shown in this figure is the same as that of FIG. 10 described above, but the key is different and the operation on the way is different.

Then, in the method of the present invention, as shown in the final result of FIG.
When the cursor and the text on the right are all deleted,
The screen state is the same as the state of the pre-deletion work from the end of the text in FIG. 3, but the main feature is that the pre-deletion work is not automatically entered and the warning sound is emitted as described above. Have.

A flow chart for performing the above work is shown in FIG. The operation will be described below according to this flowchart. First, the mode is set to "previous deletion" (step n1), and key scan is performed (step n).
2) It is checked whether or not the delete key 10 has been pressed (step n3). When another key is pressed, the corresponding key is processed (step n4), and when the delete key 10 is pressed, it is next checked whether or not there is a character on the cursor (step n5).

If there is a character on the cursor, the process moves to step n6, one character on the cursor is deleted, and each character of the text on the right of the cursor is shifted left by one character (step n7). Update to "delete" (step n8), and then return to step n2. Repeating this, if there is no character left on the cursor, the process moves from step n5 to step n9 to check what the mode is, and if it is the "delete" mode, a warning sound is emitted in step n14. By executing these steps, the deletion operation shown in FIG. 2 or 4 can be obtained.

Next, when it is determined in step n5 that there is no character on the cursor while the mode setting in step n1 remains "previous deletion", steps n9 to n
Go to 10, check if there is a character to the left of the cursor,
If there is a character to the left of the cursor, one character to the left of the cursor is deleted (step n11), the cursor is shifted to the left by one character (step n12), the mode is set to "previous deletion", and the process returns to step n2. . If there is no character left of the cursor in step n10 by repeating this operation, a warning sound is emitted in step n14. By executing these steps, the pre-delete operation shown in FIG. 3 is obtained.

In this way, for all deletion operations, the same delete key operation is used to delete the character on the left side of the cursor in response to an input error during continuous input, that is, the previous delete and the character on the cursor during editing. Because I am
As in the conventional case, the deletion function can be executed very naturally without wondering whether it is the previous deletion key or the deletion key, and the work efficiency can be improved.

Moreover, even if the state of performing the deletion operation in the middle of the text becomes the same as the state of the previous deletion on the screen, the warning is not given carelessly and the warning is issued. It is also effective in preventing

[0028]

As is apparent from the above description, according to the deletion method of the present invention, when the cursor on the screen is at the position next to the last character of the created document, the deletion key operation The deletion operation before the last character is deleted is executed, and when deleting from the middle of the document, the character on the cursor is deleted. Therefore, without special switching operation, only one type of delete key can be used to automatically use both normal delete function such as continuous input and delete the character on the cursor when editing. Therefore, the operator does not need to determine the type of key to be operated when performing the deletion work, and the deletion work can be efficiently and continuously performed without interrupting thinking, and operability is improved. It can make a big contribution.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an example of an input device for implementing a deletion method of the present invention.

FIG. 2 is an explanatory diagram showing a state of deletion by the method of the present invention.

FIG. 3 is an explanatory diagram showing a state of deletion by the method of the present invention.

FIG. 4 is an explanatory diagram showing a state of deletion by the method of the present invention.

FIG. 5 is a flowchart for carrying out the method.

FIG. 6 is a configuration diagram showing an example of an input device for implementing a conventional deletion method.

FIG. 7 is an explanatory diagram showing a state of deletion by a conventional method.

FIG. 8 is a flowchart for carrying out the method.

FIG. 9 is an explanatory diagram showing a form of pre-deletion according to a conventional method.

FIG. 10 is an explanatory diagram showing a mode of pre-deletion according to the same method.

FIG. 11 is a flowchart for implementing the method shown in FIGS. 9 and 10.

[Explanation of symbols]

 1 Display (screen) 7 Cursor 10 Delete key

Claims (1)

[Claims] 1. A method of deleting characters in a created document, wherein a position for inputting characters is displayed on a display screen for displaying the created document with a cursor, and characters entered by operating a delete key are deleted based on this cursor. If the cursor on the screen is at the position next to the last character of the created document in, the delete operation is performed before deleting the last character with the delete key, and the cursor is moved to the middle of the created document. Then, when deleting from the middle of the document with the delete key, the character on the cursor is deleted, and when the same screen state as the previous delete work is brought about by the execution of this delete work, the mode is switched to the previous delete work. hand,
A method for deleting characters in a created document, characterized in that the last character can be deleted continuously.