JPH038075A - Document storing system - Google Patents

Abstract

PURPOSE:To improve efficiency for storing a document by compressing the same continuous codes and storing the document. CONSTITUTION:The document inputted by a document input means 111 is converted to the codes corresponding to respective constituting elements and outputted to a first storing means 113. The codes stored in the means 113 are successively read and outputted by a code compressing means 115. In this reading, when the same continuous codes are detected, the information quantity of the said code is compressed and outputted. The code outputted from the means 115 is stored in a document storing means 117. Thus, since the same continuous code is compressed and stored, the efficiency is improved for storing the document.

Description

[Detailed Description of the Invention] [Summary] The purpose of this invention is to improve the storage efficiency of a document storage system of a device having a document processing function, such as a word processor or a personal computer. a document input means for outputting a code to be output, a first storage means for storing a code output from the document input means, and a code stored in the first storage means is sequentially read and outputted, and the same code is consecutive. In some cases, the apparatus is configured to include a code compression means for compressing the amount of information and outputting a code, and a second storage means for storing the code output from the code compression means.

[Industrial application field]

The present invention relates to a document storage method that improves the storage efficiency of created documents in devices having document processing functions, such as word processors and personal computers.

[Prior Art] In a document processing device, for example, a document accumulated in a buffer is stored in a storage device after editing processing is completed, and at this time, even if the same code is consecutive, it is stored one by one.

FIG. 7 shows an example of the prior art. As shown in the figure, in a word processor 710, a document is displayed on a CRT display device 713 under the control of a display device side tlB processing section 711. A document input from the keyboard 715 is sent from the keyboard control processing section 717 to the document editing processing section 719 and stored in the RAM 721. When the document editing process is completed, the document in the RAM 721 is stored in the document storage processing unit 723.
The data is stored in the floppy disk device 725 by the floppy disk drive 725.

The CPU 727 includes the display device control processing section 711. The keyboard control processing section 7171 executes programs stored in the document editing processing section 719 and the document storage processing section 723.

[Problem to be solved by the invention]

By the way, in the conventional method described above, even if control codes such as line breaks or character codes such as spaces are consecutive,
Since each code was stored as a control code or character code, there was a problem in that the storage efficiency was poor.

For example, as shown in FIG. 8(a), if the control code "ku" representing a line feed appears six times in a row,
)), six ``gu'' were stored, such as ``gugugugugu''. For example, in a format where the vertical and horizontal outer frames are defined by ruled lines, if the sentence ends with 2 in the format, the remaining % true "
It will store the character code of blank space °′.

The present invention was created in view of these points, and an object of the present invention is to provide a document storage method that improves storage efficiency.

[Means for Solving the Problems] FIG. 1 is a block diagram of the principle of the document storage system of the present invention.

In the figure, document input means 111 inputs a document and outputs codes corresponding to each of the constituent elements of the document.

The first storage means 113 stores the code output from the input means 111.

The code compression means 115 sequentially reads and outputs the codes stored in the first storage means 113, and when the same code is consecutive, compresses the amount of information and outputs the code.

The document storage means 117 stores the code output from the code compression means 115.

Therefore, as a whole, we compress consecutive identical codes,
It is configured to store documents.

[For production]

A document input by the document input means 111 is converted into codes corresponding to each of its constituent elements and output to the first storage means 113. The codes stored in the first storage means 113 are sequentially read out and output by the code compression means 115. However, when consecutive identical codes are detected during reading, the amount of information of the codes is compressed and output. The code output from the code compression means 115 is stored by the document storage means 117.

In the present invention, since consecutive identical codes are compressed and stored, storage efficiency is improved.

C Embodiment) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 2 shows the configuration of an embodiment to which the document storage method of the present invention is applied.

Here, the correspondence between I and 1 will be shown between the embodiment of the present invention and FIG.

The document input means 111 corresponds to the keyboard 215 and the keyboard control processing section 217.

The first storage means 113 corresponds to the RAM 221.

The code compression means 115 corresponds to the code compression processing section 223.

The second storage means 117 includes a floppy disk device 225
and the document input/output processing section 227.

Examples of the present invention will be described below assuming that the correspondence relationship as described above exists.

In FIG. 2, the word processor 210 of the embodiment is as follows:
A CR7 display device 211 that displays document data and processing functions, a display device control processing unit 213 that controls display on the CR7 display device 211, a keyboard 215 that allows a user to input document data, and a keyboard 215 that displays document data and processing functions.
Keyboard control processing unit 217 that controls input from
, a document editing processing unit 219 that performs document processing during document creation and updating, and a RAM 221 that is used as a work area for temporary storage of document data, detects a sequence of control codes from document data, and detects a sequence of control codes from the document data. a floppy disk drive 225 that stores document data; a document input/output processor 227 that stores edited document data in the floppy disk drive 225; It consists of a code restoration processing section 229 that restores compressed control codes, and a CPU 231.

Document editing processing unit 219. The code compression processing section 223 and the code restoration processing section 229 are composed of ROM, and this ROM
The program stored in M is executed by the CPU 231 without using the RAM 221.

Next, the word processor 210 according to the embodiment of the present invention described above.
The operation will be explained.

FIG. 3 shows an explanation of the storage method of the embodiment, FIG. 4 shows an operation flowchart of document data storage processing, and FIG. 5 shows an operation flowchart of control code compression storage processing. In addition, Fig. 3 (a), (b
) and (f) are explanations of the display of the CR7 display device 211, and (C) to (e) are explanations of the display of the floppy disk device 225.
This is an explanation of the storage format.

As shown in FIG. 3(a), one line feed, the sentence ``The following operation is performed'', four consecutive line feeds, and ``The following result is obtained from the above.

Consider the case where a document consisting of the following sentence and one line feed is to be stored after being edited. Hereinafter, reference will be made to FIGS. 2 to 5.

First, the document editing processing section 219 inputs and edits document data from the keyboard 215 (step 411 in FIG. 4).
In this case, when an operation key other than a character key is pressed, it is determined whether or not that key is an end key (fourth step).
Figure step 413).

If the pressed key is not the end key, further editing processing of the document data is performed (step 411 in FIG. 4).

If the pressed key is the end key, the
), the document editing processing unit 219 displays a menu screen for instructing how to process the edited document, such as ``replace the document'' or ``save only the original document.''
is displayed on the CR7 display device 211. At this time, the document data is stored in the RAM 221, as shown in Figure 3 (
As shown in C), it is not stored in the floppy disk device 225.

When the document processing method is input from the keyboard 215,
The document editing processing unit 219 determines whether or not it is to be stored (step 415 in FIG. 4). If a selection is made not to perform the storage process, the conditional statement is negated and the process ends without storing the document data. On the other hand, if "replace document" is selected to perform storage processing of the edited document, this conditional statement is affirmed, and the processing by the code compression processing unit 223 is performed.

The code compression processing unit 223 first performs a search process for the document data stored in the RAM 221 (step 417 in FIG. 4). At this time, the code compression processing unit 223 determines whether the searched code is a control code or not. (Step 419 in FIG. 4). If the determination is negative, the code is sent from the code compression processing unit 223 to the document input/output processing unit 227 without being processed and stored in the floppy disk device 225 (
FIG. 4 step 421).

On the other hand, if it is determined that it is a control code, further processing for compressing and storing is performed (step 423 in FIG. 4).
. FIG. 5 shows a flowchart of the compression storage process.

When the control code is retrieved, the code compression processing unit 223 then determines whether the control code is the same as the code previously retrieved from the RAM 221 (step 511 in FIG. 5). If it is continuous, the number of consecutive times is counted (step 513 in FIG. 5). Next, it is determined whether the code is repeated four or more times in a row (step 515 in FIG. 5). This is the number of consecutive occurrences of the "yen" child control code "X" (where 1, X is an integer), which indicates that the compression format is r character compression. This is because, if not, a large amount of space would be required. If the judgment statement is affirmative, the code is compressed by the code compression processing unit 223 into a format of “r” character compression indicating interest “child control code + number of consecutive appearances “X”” and is sent to the document input/output processing unit 227. The data is sent and stored in the floppy disk device 225 by the document input/output processing section 227 (Step 517 in Figure 5).
5) Those 1 to 3 codes are processed by the code compression processing unit 22.
3 to the document input/output processing section 227, and stored one by one in the floppy disk device 225 by the document input/output processing section 227 (step 519 in FIG. 5).

These series of character search processing and character storage processing are performed by RA
This is performed one by one for all characters in the document data stored in M221.

In the example shown in FIG. 3, the code compression processing unit 223 first detects "'gu", but since the following character is "low", "〈" and "low °゛" are not compressed. is sent to the document input/output processing section 227 and then sent to the floppy disk device 22.
It is stored in 5. Hereinafter, the operation is as described below. Codes other than ``g'' are searched by the code compression processing unit 223, and they are directly transmitted to the document input/output processing unit 22.
7, the data is stored in the floppy disk device 225 as shown in FIG. 3(d). “’gu゛” appeared again and the next code was also “gu”, so the code compression processing unit 2
23, the number of consecutive times is counted.

After detecting four consecutive "〈"s, " (blank) was detected, so the code compression processing unit 223 compressed those four ``〈'' into the format "oldgu4" and changed it to "■gu4". and “″” are sent to the document input/output processing unit 227,
As shown in FIG. 3(e), the floppy disk device 2
25.

When all characters are stored, as shown in Figure 3),
The document editing processing section 219 displays an initial screen of the word processor 210 for selecting document processing functions such as document deletion and updating.

When updating a document, if you select "Update" on the initial screen shown in Figure 3 and then select the document to be updated, the document input/output processing section 227 reads the stored data of the document to be updated from the floppy disk device 225 and sends it to the code restoration processing section 229. If a compressed code exists in the stored data, the code restoration processing unit 229 restores the code. For example, if the code ``°'' (g) 〈4'' exists, the 4 code ``〈guguri'°
Restore to one code. The restored document data is in RAM
221 and sent to the display device control processing section 213 by the document editing processing section 219 and then sent to the CRT display device 211.
will be displayed.

■Summary In this way, by compressing and storing codes in the format of "number of consecutive occurrences of child control code 10""X" (where X is an integer) indicating r character compression, storage efficiency can be improved. will improve. In addition, if the number of consecutive line feeds is changed from 6 to 5 by updating the document data, all you need to do is change it from ``old 6'' to ``5''. The amount of document data does not change, making it easier to manage the document storage area.

Note that in the above-described embodiments of the present invention, the document processing device is a word processor, but it may also be a workstation, for example.

Further, although the document storage device is a floppy disk device, it may be a magnetic disk device, for example.

Although the compression target is the control code, it is not limited to this, and can be applied to all continuous data such as character codes such as spaces.

Although a keyboard is used as a data input means, for example, codes supplied from a host computer may be received via a line interface, stored in the RAM 221, and then compressed.

Further, in the above-described embodiment, the compression format is "" yen 10 control code + number of consecutive appearances "X°°" indicating r character compression, but other compression formats are also possible. For example, we created a new compression code “〈°” for “gu”, and
), the 6 displayed on the CR7 display device 211
6 consecutive line breaks, as shown in Figure 6(b).
It is compressed into the format of °゛ and sent to the floppy disk drive 22.
Store in 5.

In this way, it is also possible to create a sub-control code that indicates storage by character compression for each control code, and use a compressed format such as "Number of consecutive occurrences of sub-control code "X''J, and store it in this way. This allows the amount of data to be stored to be further reduced and storage efficiency to be further improved.

Furthermore, in ``correspondence between examples and FIG. 1'',
Although the correspondence between the present invention and the embodiments has been described, those skilled in the art will easily assume that the present invention is not limited to this and that there are various modifications.

〔Effect of the invention〕

As described above, according to the present invention, since consecutive identical codes are compressed and stored, the storage efficiency in document storage is improved, and it is extremely useful in practice.

[Brief explanation of drawings]

Figure 1 is a principle block diagram of the document storage system of the present invention, Figure 2
3 is an explanatory diagram of the storage method of the embodiment, FIG. 4 is an operation flowchart of document data storage processing, and FIG. 5 is a control diagram. FIG. 6 is an explanatory diagram of a compression format of another embodiment, FIG. 7 is an explanatory diagram of a conventional technique, and FIG. 8 is an explanatory diagram of a conventional storage method. 113 is a first storage means, 115 is a code compression means, 117 is a second storage means, 210 is a word processor, 211 is a CRT display device, 213 is a display device control processing section, 215 is a keyboard, 217 is a keyboard control processing section, 219 221 is a document editing processing unit, and 221 is a RAM. 223 is a code compression processing section, 225 is a floppy disk device, 227 is a document input/output processing section, 229 is a code restoration processing section, and 231 is a CPU. In the figure, 111 is a document input means; b
Yahachi. Niunro'i: (+lko Figure 6 (a) (b) Kenwa-Jo Sugi direction bow Len1 sword Figure 8

Claims (1)

[Claims] (1) Document input means (111) for inputting a document and outputting codes corresponding to each of the constituent elements of the document; and a first storage means for storing the codes output from the document input means (111). (113), and a code compression means (113) that sequentially reads and outputs the codes stored in the first storage means (113), compresses the amount of information and outputs the code when the same code is consecutive. 115); and second storage means (117) for storing the code output from the code compression means (115).