JP3082977B2 - Character processing method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing apparatus for processing a character string.

[0002]

2. Description of the Related Art In a character processing apparatus for inputting and editing a sentence, a sentence in which input has already been completed is often reread for the purpose of elaboration. In such a case, it is convenient to have a function of searching for the head position of a sentence because it is possible to read a rough flow of the entire sentence, but there is no such function in a conventional character processing apparatus. If it is desired to do the above in the conventional device, the function of searching for a specific character is used. For example, search for a period. Then, since the cursor moves to the end of the sentence, almost the purpose can be achieved.

[0003]

However, in such a method of searching for a period in the conventional apparatus, the new cursor position is moved to the position of the period. As a result,
To add a new sentence, it was necessary to move the cursor one character to the right before inputting a new sentence.
That is, the method of searching for a period has a drawback that the cursor moves to the end of the sentence, and a new sentence cannot be input immediately as it is. To avoid this drawback, it is necessary to search the beginning of the sentence. However, since the beginning of the sentence usually starts with an arbitrary character and there is no specific symbol, the conventional device can move the beginning of the sentence. Did not.

[0004]

In order to solve the above-mentioned problems, a character processing apparatus according to the present invention comprises a document storage means for storing a character string and a cursor for defining a next input position in the character string. Cursor displaying means for displaying, indicating means for instructing to move the cursor to the beginning of the sentence after the cursor position, determining means for determining the type of character on the current cursor in response to the instruction from the indicating means; A first cursor moving unit for moving a cursor to a predetermined position if the character determined by the unit is a specific type; and a current cursor position after the current cursor position if the character determined by the determining unit is not a specific type. Search for the first or second character string
Detecting means for detecting the first type of character, and when the first type of character is detected by the detecting means, moving the cursor to the position of the detected character, and detecting the second type of character by the detecting means. A second cursor moving means for moving a cursor to a character position on the document end side by one character from the position of the detected character when a character is detected. A character processing device according to another aspect of the present invention includes a document storage unit that stores a character string, a cursor display unit that displays a cursor that defines a next input position in the character string, Instructing means for instructing to move the cursor to the beginning of the sentence, determining means for receiving the instruction from the instructing means, and determining the type of the character at the head of the document by one character from the current cursor position, If the typed character is a specific type, move the cursor to a predetermined position.
Cursor moving means, and detecting means for searching the character string before the current cursor position and detecting a first or second type of character if the character determined by the determining means is not a specific type. When the first type of character is detected by the detection unit, the cursor is moved to the position of the detected character, and when the second type of character is detected by the detection unit, the detection is performed. 1 from the position of the character
Cursor moving means for moving the cursor to a character position at the end of the document by only characters.

According to the character processing method of the present invention, in a character processing apparatus for displaying a stored character string and displaying a cursor defining a next input position in the displayed character string, In response to the instruction, the type of the character on the current cursor is determined, and if the determined character is a specific type, the cursor is moved to a predetermined position. Move,
If the determined character is not a specific type, the character string after the current cursor position is searched, and the first or second character string is searched.
Type of character is detected, and when the first type of character is detected, a cursor is moved to the position of the detected character, and when the second type of character is detected, The cursor is moved by one character from the detected character position to the character position at the end of the document. Also, according to the character processing method according to another aspect of the present invention, the stored character string is displayed,
In a character processing device that displays a cursor that defines the next input position in the displayed character string, by instructing the cursor to move to the beginning of the sentence before the cursor position,
In response to the instruction, the type of the character at the head of the document is determined by one character from the current cursor position, and if the determined character is a specific type, the cursor is moved to a predetermined position and the character is determined. If the character is not a specific type, the character string before the current cursor position is searched to detect a first or second type of character, and if the first type of character is detected, The cursor is moved to the position of the detected character, and when the second type of character is detected, the cursor is moved to a character position closer to the end of the document by one character from the position of the detected character.

[0006]

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment according to the present invention will be described below in detail with reference to the accompanying drawings.

<First Embodiment> FIG. 1 is a block diagram showing a first embodiment of a character processing device according to the present invention. In FIG. 1, a CPU is a microprocessor, which performs calculations for character processing, logical judgment, and the like, and is connected to each component via an address bus AB, a control bus CB, and a data bus DB. Control.

The address bus AB is connected to the microprocessor C
An address signal indicating a component to be controlled by the PU is transferred. The control bus CB transfers and applies a control signal of each component to be controlled by the microprocessor CPU. The data bus DB transfers data between the components.

DIC is a dictionary, which is referred to when performing kana-kanji conversion.

The ROM is a fixed read-only memory, and stores a control procedure by a microprocessor CPU which will be described later with reference to FIGS.

The RAM is a writable random access memory having a structure of 16 bits per word, and is used for temporarily storing various data from each component.

A keyboard KB is a character symbol input key such as an alphabet key, a hiragana key, or a katakana key, and various keys such as a search key and an inverse search key for instructing various functions to the character processing apparatus. Has function keys.

DISK is an F for storing document data.
D or other external storage. Documents created on the text buffer are stored in this DISK. The stored documents are called up as needed by keyboard instructions.

CR is a cursor register. The CPU can read and write the contents of the cursor register. A CRT controller CRTC described later displays a cursor at a position on the display device CRT corresponding to the address stored here.

DBUF is a display buffer memory for storing data to be displayed.

The CRTC plays a role of displaying the contents stored in the cursor register CR and the buffer DBUF on the display CRT.

A CRT is a display device using a cathode ray tube or the like, and a display pattern of a dot configuration and a display of a cursor on the display device CRT are controlled by a CRT controller.

Further, CG is a character generator for storing character and symbol patterns to be displayed on the display device CRT.

A printing device PRT prints a document on a text buffer in response to an instruction from a keyboard.

The character processing apparatus according to the present invention comprising the above components operates according to various inputs from the keyboard KB. When an input from the keyboard KB is supplied, first, an interrupt signal is generated. Sent to the microprocessor CPU and the microprocessor CP
U reads various control signals stored in the ROM,
Various controls are performed according to the control signals.

FIG. 2 is a diagram showing an operation example of the head-of-sentence search according to the first embodiment.

2-1 is an example of a screen showing a state in which a document has been input. In the figure, the cursor is represented by a mesh, and the line feed code is represented by a curved arrow. Also, “•” is called a blank paper code, which means that no character exists at that position.

When the search key is pressed in this state, the cursor moves to the head of the next sentence. In this case, the next of the punctuation is interpreted as the head of the sentence, and the cursor moves to the position of the “column” of the “paragraph” on the first line as in the screen 2-2. Furthermore,
When the search key is pressed, similarly, as shown in screen 2-3,
The cursor moves to the beginning of the next statement.

Next, when the search key is pressed, the screen 2
-4, and the cursor moves to the line feed code. The line feed code itself is not at the beginning of the sentence, but since a new sentence may be entered at the end of a paragraph, the cursor stops once on the line feed code.

When the search key is further pressed, a screen 2-5 is displayed, and the cursor is moved to a position where a line feed is performed from the previous cursor position.

FIG. 3 is a diagram showing an operation example of the head-of-sentence reverse search according to the first embodiment. In the head-of-sentence reverse search, the cursor moves generally in the reverse direction of the head-of-head search.

3-1 is an example of a screen showing a state in which a document has been input. When the reverse search key is depressed in this state, a line feed code is first found, and the cursor is moved there (screen 3-2).

Next, when the reverse search key is pressed, the next cursor moves to the head of the previous sentence. In this case, the beginning of the sentence is interpreted as the beginning of the sentence, and the cursor moves to the position of the “column” of the “paragraph” on the second line as in the screen 3-3. Further, when the reverse search key is pressed, the cursor similarly moves as shown in a screen 3-4.

Next, the above operation will be described according to a flow.

FIG. 4 is a flow chart for explaining the operation of taking in a key input and performing processing according to the first embodiment.

In step S4-1, key data to be entered from a keyboard is fetched.

In step S4-2, the type of the fetched key is determined, and the determination result is output. The process branches to a processing routine for each key according to the determination result.

If it is a search key, step S4--
In step S4-3, a search process is performed as described in detail in FIG.

If it is the reverse search key, step S4-4
Then, in step S4-4, an inverse search process is performed as described in detail in FIG.

In the case of another key, the process branches to step S4-5 to perform other processes such as insertion, deletion, symbol input, etc. which are performed in a normal character processing device.

Upon completion of each process, the flow branches to step S4-1.

FIG. 5 shows a step S4--according to the first embodiment.
3 is a flowchart for explaining in detail a “search process”.

In step S5-1, the address of the current cursor position is assigned to a pointer variable p.

In step S5-2, it is determined whether or not the position indicated by p is a blank page code. If it is a blank sheet code, the flow branches to step S5-8. In step S5-8, the pointer p is advanced by one character toward the end of the sentence.
Step S5 until a non-blank code is found in 9
-8, loop the step S5-9. Step S5-
If a blank code other than the blank code is found in step 9, step S
Branch to 5-12. If it is not a blank sheet code in step S5-2, the process proceeds to step S5-3.

In step S5-3, it is determined whether or not the position indicated by p is a line feed code. If it is a line feed code, the flow branches to step S5-10, and the address of the line feed position indicated by p is obtained and substituted into p. Then, step S
Branch to 5-12. If the position indicated by p is not a line feed code in step S5-3, the flow branches to step S5-4.

In step S5-4, the pointer p is advanced by one character toward the end of the sentence.

In step S5-5, it is determined whether or not the position indicated by p is a punctuation mark (or a symbol indicating the end of a sentence such as a period).
And the pointer p is advanced by one character toward the end of the sentence, and the process branches to step S5-12.

In step S5-6, it is determined whether or not the position indicated by p is a blank page code, and if it is a blank page code, the flow branches to step S5-12.

In step S5-7, it is determined whether the position indicated by p is a line feed code, and if it is a line feed code, the flow branches to step S5-12. If it is not a line feed code, the process loops to step S5-4 and repeats the search toward the end of the sentence.

In step S5-12, the position indicated by the pointer variable p is set as a new cursor position, and the routine returns.

FIG. 6 shows a step S4--according to the first embodiment.
6 is a flowchart for explaining in detail an “inverse search process” of No. 4;

In step S6-1, the address one character to the left of the current cursor position (the beginning of the sentence) is assigned to the pointer variable p.

In step S6-2, it is determined whether or not the position indicated by p is a blank page code. If the code is a blank paper code, the flow branches to step S6-7. In step S6-7, the pointer p is advanced by one character toward the beginning of the sentence.
Until a blank code is found in step S8, step S6
-7, Step S6-8 is looped. Step S6-
If a code other than a blank code is found in step 8, the process proceeds to step S
Branch to 6-9. If it is not a blank sheet code in step S6-2, the process proceeds to step S6-3.

In step S6-3, the pointer p is advanced by one character toward the beginning of the sentence.

In step S6-4, it is determined whether or not the position indicated by p is a blank page code, and if it is a blank page code, the flow branches to step S6-9.

In step S6-5, it is determined whether or not the position indicated by p is a punctuation mark (or a symbol indicating the end of a sentence such as a period). If it is a punctuation mark, the flow branches to step S6-9.

In step S6-6, it is determined whether the position indicated by p is a line feed code, and if it is a line feed code, the flow branches to step S6-10. If it is not a line feed code, the process loops to step S6-3 and repeats the search in the head of sentence.

In step S6-9, the pointer p is advanced by one character toward the end of the sentence.

In step S6-10, the position indicated by the pointer variable p is set as a new cursor position, and the routine returns.

As described above, according to the present embodiment,
There is a function to search the beginning of the sentence toward the beginning of the document, and a function to search backward from the end of the document. This makes it easy to revise the sentence and insert it accordingly. be able to.

The present invention can be applied not only to a single device but also to a system including a plurality of devices.
Needless to say, the present invention can be realized by providing software to a device or a system.

[0058]

As described above, according to the present invention,
If the instruction to move the cursor to the beginning of the text before or after the cursor position is given, if the current cursor position or the character before it is of a particular type, the cursor can be moved to the beginning of the sentence at a predetermined position according to the type, If it is not a specific type, one of a plurality of characters representing a break in the sentence is detected from the current cursor position in the specified direction, and the position of the character or the next character is detected according to the type of the detected character. Since the cursor can be moved to the position of the beginning of the sentence, which is the position of the character, there is an effect that the editing of the sentence and the accompanying insertion become easy.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a character processing device according to the present invention.

FIG. 2 is a diagram showing an operation example of a sentence head search according to an embodiment.

FIG. 3 is a diagram showing an operation example of a sentence reverse search according to the embodiment.

FIG. 4 is a flowchart illustrating an operation of performing a key input capture process according to the embodiment.

FIG. 5 is a flowchart illustrating a search process according to the embodiment in detail.

FIG. 6 is a flowchart illustrating in detail a reverse search process in the embodiment.

[Description of Signs] CPU Microprocessor DIC Kana-Kanji conversion dictionary ROM Read only memory RAM Random access memory DISK External storage PRT Printing device KB Keyboard CR Cursor register DBUF Display buffer memory CRTC CRT controller CRT Display device CG Character generator

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 17/24

Claims (18)

(57) [Claims] 1. A document storage means for storing a character string; a cursor display means for displaying a cursor defining a next input position in the character string; and an instruction to move a cursor to the beginning of a sentence after the cursor position. Instructing means; determining means for determining the type of character on the current cursor in response to the instruction from the instructing means; if the character determined by the determining means is a specific type, moving the cursor to a predetermined position A first cursor moving means, and if the character determined by the determining means is not a specific type, searching for the character string after the current cursor position,
Detecting means for detecting a first or second type of character; and, when the first type of character is detected by the detecting means, moving a cursor to a position of the detected character, and A second cursor moving means for moving a cursor to a character position on the document end side by one character from a position of the detected character when a second type of character is detected; Character processor. 2. The character processing apparatus according to claim 1, wherein the first type of character includes a line feed code or a blank page code. 3. The character processing device according to claim 1, wherein the second type of character includes a period. 4. If the character of the specific type includes a blank page code and the character determined by the determining section is a blank page code, the first cursor moving section replaces the character string after the current cursor position with the blank. 2. The character processing apparatus according to claim 1, wherein a character other than a blank code is detected by searching, and a cursor is moved to a position of the detected character. 5. If the character of the specific type includes a line feed code and the character determined by the determination unit is a line feed code, the first cursor moving unit moves the cursor to a position where a line feed is performed by the line feed code. The character processing device according to claim 1, wherein the cursor is moved. 6. A document storage means for storing a character string; a cursor display means for displaying a cursor defining a next input position in the character string; and an instruction to move the cursor to the beginning of the sentence before the cursor position. Indicating means, receiving the instruction from the indicating means, determining means for determining the type of the character at the head of the document by one character from the current cursor position, and if the character determined by the determining means is a specific type, First cursor moving means for moving a cursor to a predetermined position, if the character determined by the determining means is not a specific type, searching for the character string before the current cursor position,
Detecting means for detecting a first or second type of character; and, when the first type of character is detected by the detecting means, moving a cursor to a position of the detected character, and A character processing apparatus comprising: a cursor moving unit that, when a second type of character is detected, moves a cursor to a character position closer to the end of the document by one character from the position of the detected character. . 7. The character processing device according to claim 6, wherein the first type of character includes a line feed code. 8. The character processing apparatus according to claim 6, wherein the second type of character includes a period or a blank page code. 9. The method according to claim 8, wherein the specific type of character includes a blank page code, and the character determined by the determining section is a blank page code. 7. The character processing apparatus according to claim 6 , wherein a character other than the blank code is detected by performing a search, and a cursor is moved to a character position on the document end side by one character from the position of the detected character. 10. A character processing apparatus for displaying a stored character string and displaying a cursor for defining a next input position in the displayed character string, wherein an instruction is given to move the cursor to the beginning of a sentence after the cursor position. By receiving the instruction, the type of the character on the current cursor is determined, and if the determined character is a specific type, the cursor is moved to a predetermined position, and the determined character is determined to be a specific type. If not, the character string after the current cursor position is searched and the first or second character string is searched.
When the first type of character is detected, a cursor is moved to the position of the detected character, and when the second type of character is detected, A character processing method characterized by moving a cursor to a character position on the document end side by one character from a detected character position. 11. The character processing method according to claim 10, wherein the first type of character includes a line feed code or a blank sheet code. 12. The character processing method according to claim 10, wherein the second type of character includes a period. 13. When the specific type of character includes a blank code and the determined character is a blank code, the character string after the current cursor position is searched to detect a character other than the blank code. 11. The character processing method according to claim 10, wherein a cursor is moved to a position of the detected character. 14. The method according to claim 10, wherein the specific type of character includes a line feed code, and if the determined character is a line feed code, a cursor is moved to a position where a line feed is performed by the line feed code. Character processing method described in. 15. A character processing apparatus for displaying a stored character string and displaying a cursor defining a next input position in the displayed character string, wherein an instruction is given to move the cursor to the beginning of the sentence before the cursor position. Thus, in response to the instruction, the type of the character at the head of the document is determined by one character from the current cursor position, and if the determined character is a specific type, the cursor is moved to a predetermined position; If the determined character is not a specific type, the character string before the current cursor position is searched, and the first or second character string is searched.
When the first type of character is detected, a cursor is moved to the position of the detected character, and when the second type of character is detected, A character processing method characterized by moving a cursor to a character position on the document end side by one character from a detected character position. 16. The character processing method according to claim 15, wherein the first type of character includes a line feed code. 17. The character processing method according to claim 15, wherein the second type of character includes a period or a blank page code. 18. If the specific type of character includes a blank code and the determined character is a blank code, the character string before the current cursor position is searched to detect a character other than the blank code. 16. The character processing method according to claim 15, wherein the cursor is moved to a character position on the document end side by one character from the detected character position.