JPS5821290B2 - Error handling method of document creation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a document creation device that creates a document while storing it in a work area on an external storage device, when an error is detected when reading the document being created. This relates to error handling methods in cases where

Japanese word processors have document creation functions, document storage functions, input/output functions, and document structure processing functions.

Figure 1 shows an overview of a Japanese word processor, in which 1 is a keyboard, 2 is a control unit, 3 is a floppy disk device, 4 is a screen buffer, 5 is a display, 6 is an end key, and 7 is a floppy disk drive. 8 indicates a next page key, 8 indicates a previous page key, 9 indicates a storage area, and 10 indicates a work area.

The control section 2 is composed of a microprocessor, etc., and controls the entire word processor.

When creating a document, the operator inputs kana characters from the keyboard 1, and if he wants to convert a word written in kana to a word written in kanji, he performs a kana-to-kanji conversion operation.

The document being created is stored in the screen buffer 4 and displayed on the display 5.

When one page of document is created, the operator presses the next page key 7.

Then, the data in the screen buffer 4 is transferred to the work area 10 of the floppy disk device 3.

FIG. 2 shows the structure of the work area 10. One page is made up of, for example, six sectors, and one sector can store, for example, five lines of documents.

If the operator wishes to view a previously created document during document creation, the operator presses the previous page key 8.

Then, the previous page of the document is displayed on the display 5.

Documents are created in this way, and when the desired document is created, the operator presses the end key 6.

When the end key 6 is pressed, the document in the work area 10 and the document in the screen buffer 4 are moved to the storage area 9 and saved.

When displaying a document in the work area 10 on the display 5 or moving a document in the work area 10 to the storage area 9,
A read data ζζ error from the work area 10 may be detected.

In such cases, in the conventional technology, the entire document being created is invalidated, but invalidating the entire document when an error is detected in one sector is not a good idea for the document creation device. Not.

The present invention is based on the above consideration, and provides an error handling method for a document creation device that allows the remaining documents to be treated as valid when an error is detected in a part of the document being created. is intended to provide.

Therefore, the error handling method of the document creation device of the present invention requires an input section for inputting data, a document creation device, a control section for controlling the whole, a screen buffer for storing data to be displayed, a display, an accumulation area, and a work area. Each time a document for one page is created, the document is stored in the above-mentioned work area, and when all the documents are created, the document in the work area is moved to the above-mentioned storage area. In a document creation device that can save the document in the work area and display it on the display via the screen buffer, if an error is detected when reading the document from the work area, a blank is characterized in that the processing proceeds as if it had been written.

Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 3 is a block diagram of one embodiment of the present invention, 11
is the display page number register that indicates the number of pages currently displayed,
12 is a +1 circuit, 13 is a -1 circuit, 14 and 15 are gates, 16 is an external storage control section, 17 is a recovery control section, Bw is a write address for the floppy disk device, and Br is a read address for the floppy disk device. are shown respectively.

Note that the same reference numerals as in FIG. 1 indicate the same parts.

In FIG. 3, when the next page key 7 is pressed, the document in the screen buffer 4 is given a write address Bw determined by the current value of the display page number register 11 and a write command to the external storage control 16. Afterwards, the contents of register 11 are incremented by 1.

Upon receiving the write address Bw and the write finger ◆, the external storage control 16 stores the document in the screen buffer 4 as a folder.
Write to the work area 10 of the disk 3.

When the previous page key 8 is pressed, the document in the screen buffer 4 is written to the work area 10 as described above, and then the content of the display page number register 11 is incremented by -1.
A read address Br determined by the value and a read command are given to the external storage control 16.

Upon receiving the read address Br and the read command, the external storage control 16 starts reading the corresponding □ document in the work area 10.

When the read data is normal, it is directly sent to the 5-screen buffer 4.

If a parity error or the like exists in the read data, the external storage control 16 notifies the recovery control unit 17 that there is a read error.

Upon receiving this notification, the recovery control unit 1γ sends one sector worth of blank data to the external storage control 16.

This blank data is sent to the screen buffer 4 in place of the error data.

As a result, a portion of the error is displayed as blank on the display.

The above explanation explains what happens when you try to display a page that is being created and it cannot be read.
Similar processing is performed when document creation is completed and the document in the work area 10 is moved to the storage area.

As is clear from the above description, according to the present invention, even if an error is detected in part of the document stored in the work area, the remaining documents can be used as valid documents.

[Brief explanation of the drawing]

Figure 1 shows an overview of a Japanese word processor.
FIG. 2 is a diagram showing the structure of a working area of a floppy disk device, and FIG. 3 is a block diagram of one embodiment of the present invention. 1...Keyboard, 2...Control unit, 3
...Floppy disk device, 4...
・Screen buffer, 5...Display, 6...
...End key, 7...Next page key, 8
...Previous page key, 9...Storage area, 10...Work area, 11...Display page number register, 12... +1 circuit, 13...
...-1 circuit, 14 and 15...gate, 1
6...External storage control, 17...Recovery control unit.

Claims (1)

[Claims] 1 Equipped with an input section for inputting data, a control section for controlling the entire document creation device, a screen buffer for storing data to be displayed, a display, and an external storage device having a storage area and a work area, Each time a document is created, the relevant page is stored in the above work area, and when all documents are created, the document in the work area is moved to the above storage area and saved, and the document in the work area is stored in the above screen buffer. In the document creation device that can display the document on the display via the above, when an error is detected when reading the document from the work area, processing proceeds as if a blank has been written. An error handling method for a document production device.