JPS63244262A - Data processor - Google Patents

Abstract

PURPOSE:To prevent the useless use of the memory area of a storage device and to effectively use it by preventing useless data from being stored in the memory device of a data processor such as a word processor. CONSTITUTION:When there are data having no meaning for the preparation of documentation such as en blank, em blank, tab, during the documentation or edition or at the time of storing a data in the memory device 20, a means 17 substituting or eliminating above-mentioned case is provided. Accordingly, by a simple operation only depressing a key instructing the replacement/ eliminating tab space on an input device 1 while designating a range, the code data such as useless en/em spaces, tab, etc., in the designated range can be automatically substituted or eliminated. Hence data quantity can be decreased without any influence on the content of the document, and the quantity of stored document data can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data processing device, such as a word processor, having document creation and editing functions.

In general, document creation and editing devices such as word processors, office computers, personal computers,
Data processing devices such as workstations that have document creation and editing functions usually do not compress or delete data when storing character data etc. in an external storage device. Even unnecessary data that does not have any information is stored and accumulated.

Therefore, the area of the external storage device is wasted, and during operation, unnecessary processing is performed every time for the amount of useless data, which slows down the processing speed.

Examples of such meaningless data include the following:

■If there are two or more consecutive half-width spaces, replace the two half-width space codes shown in Figure 9 (a) with one full-width space code as shown in Figure 9 (b) in the text. The same is true. but.

When handling this as data, both half-width and full-width spaces are treated as 2-byte codes.

Therefore, two half-width characters will take up 4 bytes, but one full-width character will take up 2 bytes. Therefore, two half-width characters require an additional 2-byte area.

■When there is a tab code between tab positions and a blank code immediately before it.

If there is a blank code in front of a tab code as shown in FIG. 10(,) in the text, the same effect can be achieved even if the blank code is simply replaced with a tab code as shown in FIG. 10(b). However, if this is handled as data, the memory area corresponding to the number of blank codes will be wasted.

■When there is a tab code or blank code immediately before the line feed code.

In the text, even if there is a tab code or a blank code immediately before the closing line as shown in FIG. 11(a), it is the same even if these codes are not present as shown in FIG. 11(b). However, if it is treated as data, the number of spaces and tab codes will be wasted.

In addition, in conventional systems, in order to replace or delete data in the cases of ■ to ■ above, the operator has to move the cursor one by one to perform the replacement or deletion operation, which is time-consuming. Ta.

-1-Fried.

This invention has been made in view of the above points, and it is an object of the present invention to prevent meaningless data from being stored in a storage device in a data processing device such as a Japanese word processor.
To enable effective use of a memory area of a storage device without wasting it.

Structure In order to achieve the above-mentioned object, the present invention provides a data processing device having a document creation/editing function, when storing data in a storage device or during document creation/editing. The data processing apparatus is characterized in that, if there is data that has no meaning in its creation, it is provided with means for replacing or deleting the data.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.

FIG. 2 is an external perspective view showing an example of a word processor which is a data processing device embodying the present invention.

This word processor includes a keyboard 1 as an input device for inputting various information such as character information and document registration instruction information 9 document update instruction information, and a CRT display device (hereinafter also simply referred to as rCRTJ) as a display device for displaying various information. 2, a printer 3 as a printing device for printing out various information, and a floppy disk device as an external storage device for storing various information! (FDD) 4 and a main body 5 containing a control section.

FIG. 3 is a block diagram showing the hardware configuration of this data processing device.

By operating various keys on the keyboard 1, character information such as katakana, hiragana, kanji, alphabets, numbers, etc. and control information necessary for document creation 2 editing and system control are input.

The CRT display device [2 displays information and document information necessary for various operations such as document creation and editing operations.

The printer 3 can handle all graphic character codes (character codes) and control codes, and records created document information etc. on recording paper.

The floppy disk device 4 is constituted by a known 5-inch double density floppy disk drive (FDD).

System control unit (system control unit r)
scUJ)6 is CPUIQ, ROM11, RAM1
2, a keyboard interface 13, a display controller 14, a printer interface 15, a floppy disk controller (FDC) 18, and the like.

This system control unit 6 is a display control unit for executing various functions including kana-kanji conversion, which converts the readings manually entered in kana characters into kanji.

Input Control 2 Controls the overall control of this data processing apparatus, such as document creation and editing control, and executes it according to the program stored in the ROM.

FIG. 1 is a block diagram of a word processor showing an embodiment of the present invention, and shows functional blocks of the system control section of FIG. 3.

The input device 1 is the keyboard shown in FIG. 10 and FIG. 3, and is equipped with a half-width key, a space key, a tab key, and keys for instructing replacement and deletion of tabs and spaces, in addition to various keys necessary for document creation and editing. There is.

The input control unit 13 processes data input from the keyboard, and if the data input from the keyboard is a tab/space replacement/delete command, performs tab/space replacement/delete command.
This command is transferred to the deletion control unit 17.

The tab/space replacement/deletion control unit 17 receives the tab/space replacement/deletion command from the input control unit 13, replaces/deletes the tab/space in the specified area, and instructs the display control unit 14 to redisplay the tab/space. .

The start/end position register 18 is a register that saves the start position and end position of a designated area.

The character determination unit 1 extracts one character from the document memory 20 and judges the character according to the command from the tab/space replacement/deletion control unit 17 .
send it back to

The document memory 20 has document data developed on the memory, and also includes a tab set position table in which the tab set positions are described.

The tab space counter 21 counts how many consecutive tab spaces there are up to the current position and saves the count.

The space counter 22 counts and saves the number of consecutive space (blank) codes up to the current position.

The position control unit 23 manages the continuous start position and current position of tab+space and space.

The tab/space deletion processing unit 24 deletes tab codes and space codes on the document memory 20 in response to instructions from the tab/space replacement/deletion control unit 17.

The space replacement processing section 25 replaces the space (blank) code on the document memory 20 in response to a command from the tab/space replacement/deletion control section 17, and actually performs deletion and insertion to realize the replacement.

Tab space start position register 26.

Saves the starting position of consecutive tab spaces up to the current position.

The space start position register 27 saves the start positions of consecutive spaces up to the current position.

Current position register 28 is a position register that saves the current position.

Next, regarding the operation of this embodiment configured in this way,
The process will be explained with reference to the flowchart in FIG. 4 and the drawings from FIG. 5 onwards.

(1) Replacing spaces When the input device 1
It is assumed that a tab/space replacement/delete command is executed by a key command from , and the process shown in FIG. 4 is started.

First, read characters one by one starting from "A" and read rAJ to "C".
” (until the space is read), and ■
When a half-width space is read, it is determined whether it is a space or not, and since it is a space, the process moves to the right of the flowchart and checks the tab/space counter 21.

Initially, the tab/space counter 21 is cleared and r
Since it is OJ, set the current position (the position of the half-width space of ■) in the tab/space start position register 26.

Set in the space start position register 27.

Furthermore, check whether the space at the current position is full-width or not,
If it is a half-width character, the space counter 22 is incremented by +1, and if it is a full-width character, it is +2. Here, since the first space is a half-width space, the space counter 22 is changed from "0" to "1".

Then, add 1 to the tab/space counter 21 to “1”
After that, it is determined whether the specified range has ended or not. In this case, since it is not the end, the double-byte space (■) is read next.

Since it is a space again, tab/space counter 2
Proceed to check 1 and space counter 20, and at this point they are both "1", so check whether it is full-width without setting the start position, and this time, since it is full-width, add 2 to space counter 22. and set it to "3".
The tab/space counter 21 is incremented by 1 to become "2".

In this way, when the full-width space of ■ is processed, the space counter 22 becomes rl+2+1+1+2=74, and the tab/space counter 21 becomes r5J.

Next, when rDJ is read, since it is a character other than a space, the judgment as to whether it is a space or not is returned as No, and the process proceeds to the bottom of the flowchart and checks the space counter 22 and tab/space counter 21, but none of them are rOJ. Therefore, it is further checked whether there is a line feed or not and whether it is a tab, but since both are No, the tab/space counter 21 is cleared, and then space data replacement processing is performed.

In other words, first move from the space start position (here, the half-width space of ■) to the position before the current position (full-width space of ■)
The data up to this point are deleted as shown in FIG. 5(b). Here, the current position is the position of rDJ.

Next, check whether the count value of the space counter 22 is an even number or an odd number, and if it is an even number, proceed downward and fill a full-width space equal to 1/2 of the count value of the space counter 22, and if it is an odd number, the space counter Insert a full-width space and one half-width space equal to 1/2 of the count value of 22 at the current position.

In this example, the count value of the space counter 22 is "7".
'' is an odd number, so 7/2=3 full-width spaces and one half-width space are inserted as shown in FIG. 5(c).

Then, the process of clearing the space counter 22 and reading the next character over 0 is performed until the end of the range.

(2) Deletion of spaces by tabs It is assumed that a tab/space replacement/deletion command is executed for a character string as shown in FIG. 6(a), and the process shown in FIG. 4 is started.

Note that (T) in FIG. 6 represents the tab and M represents the tab set position.

First, as in the previous case, read characters one by one from "rA", and after reading the first space (■), proceed to check the tab/space counter 21 and space counter 22. 0"
Therefore, the current position is set in the tab/space start position register 26 and the space start position register 27, respectively.

Next, it is determined whether or not it is a full-width space, and since it is a full-width space, the space counter 22 is incremented by 2, and the tab/space counter 21 is incremented by 1.

If this process is repeated until the full-width space of ■ is read, the space counter 22 will be r2+2+2=6
J, and the tab/space counter 21 becomes "3".

Next, when you load the ■ tab, it is determined whether it is a space or not, so it moves downward and the space counter 2
2 and the tab/space counter 21 is not "0",
Since it is not a line break, it is next checked to see if it is a tab.

Since it is a tab, the process proceeds to check the tab/space counter 21, and since it is not 0, it is incremented by 1, and then the space is deleted.

Therefore, first, compare the previous tab set position (the position of the left mouse button in FIG. 6) with the space start position. In the case of Figure 6(a), the space start position is larger, so (
(located later).

Space start position I! (■ full-width space digit 1id
) to the position immediately before the current position (the double-byte space [)] is deleted as shown in FIG. 6(b).

Then clear the space counter and repeat until the end of the range.

(3) Deletion/replacement of spaces by tabs It is assumed that a tab/space replacement command is executed for a character string as shown in FIG. 7(a), and the process shown in FIG. 4 is started.

As with each side described above, reading starts from rAJ, and after setting the tab/space start position and the space start position, the space counter 22 and the tab/space counter 21 are made to count until the reading of the space is completed.

Therefore, immediately before loading the tab of ■, the space start position is the half-width space of ■, and the count value of the space counter 22 is rl+1+1+1+2+1=7
4, and the count value of the tab/space counter 21 is "6".

When the tab ■ is read here, the judgment as to whether it is a space in Figure 4 will be NO, the process will proceed to the bottom of Figure 4, and the check as to whether it is a tab or not will be YES, so the tab/space counter 21 will be checked. Proceed to.

Since the count value of the tab/space counter is not "0", it is incremented by 1 and the space deletion process is performed.

Therefore, the previous tab set position (the position of the square mark on the left side of FIG. 7) is compared with the space start position (the double-byte space position of the black mark). This time, unlike in case (2), the space start position is smaller, so the data from the previous tab set position to the current position is deleted as shown in FIG. 7(b). Then, the value of the space counter 22 is decreased by the amount of space deleted, and r7-3=4J
shall be.

Next, we will perform space replacement processing, but at this point the space start position is the half-width space of ■, so
Data from there to the one before the current position (half-width spaces 4
). Since the count value of the space counter 22 is "4", which is an even number, 1/2 of that number, that is, two full-width spaces, are inserted at the space start position, resulting in 4 spaces as shown in FIG. 7 (Q). Replace 2 half-width spaces with 2 full-width spaces.

(4) Deletion of tab/space due to line break Assume that the tab/space replacement/deletion command is executed for the character string shown in FIG. 8(a) and the process shown in FIG. 4 is started.

First, reading starts from "A", and after setting the tab/space start position and the space start position until reading of spaces is completed, the space counter 22 and the tab/space counter 21 are caused to count.

Then, when the ■ tab is loaded, the full-width space of ■ in Figure 8 (a) is deleted by the same process as in case (3), and the half-width space of ■■ is replaced with one full-width space. As shown in FIG. 8(b).

At this point, the tab/space start position and the space start position are both the full-width space (■).

Then, when you read the return code of ■ in Figure 8 (b), the judgment of whether it is a space in Figure 4 will be NO and it will proceed downward, and the check of whether or not it is a line feed will be YES, so it will go to the left. , move from the tab/space start position to the current position 1
The data from ■ to ■ up to the previous one (the position of the half-width space of ■) are deleted as shown in FIG. 8(c).

Then, the space counter 22 and tab/space counter 21 are cleared, and the process is repeated until the end of the range.

In this way, with this data processing device, you can specify a range and use the tab/space replacement/delete keys at any time, such as when creating or editing a document, or when storing the data in a storage device. With a simple press, you can automatically replace or delete unnecessary half-width/full-width spaces, tabs, and other code data in the specified range.

This makes it possible to reduce the amount of data without affecting the content of one document, effectively use memory areas such as the main storage device or external storage device, and increase the storage amount of document data.

As explained above, according to this invention, document creation pi! When storing data in a central or storage device, if there are space codes or tab codes that have no meaning in document creation, they can be replaced or deleted with a simple operation, so the memory area of the storage device can be saved. It is possible to increase the amount of document data by making effective use of it.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of a word processor showing an embodiment of the present invention. FIGS. 2 and 3 are perspective views of the external appearance of an embodiment of the invention and block diagrams showing the hardware configuration thereof. FIG. 4 1 is a flowchart of the replacement/deletion process according to the present invention according to the embodiment shown in FIG. 1, and FIGS.
・Input device (keyboard) 2... Display device (CRT) 3... Printer 4... Floppy disk 5...
・Main body 6...System control unit 10...Microprocessor (CPU) 11...ROM 12
...RAM13...Input control unit (keyboard interface) 14...Display control unit (display controller) 15...Printer interface 16°°°Floppy disk controller 17...Tab/space replacement/deletion Control unit 18...Start/end position register 19...Character determination means 20...Document memory (including tab set position table)
21...Tab/space counter 22...Space counter 23...Position control section 24...Tab/space deletion section 25...Space replacement processing section 2nd...Tab/space start position register 27・
... Space start position register 28...Current position register Figure 3 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11

Claims (1)

[Claims] 1. In a data processing device that has a document creation and editing function, when data is stored in the storage device or during document creation/editing, if there is data such as half-width spaces, full-width spaces, tabs, etc. that has no meaning in document creation, A data processing device characterized by comprising means for replacing or deleting the data.