JPH0353666B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a word processor for creating and editing documents while viewing a display screen.

[Prior art]

Generally, in the word processor described above, when one document is created, a new edited document can be easily created by giving further editing instructions such as insertion and deletion.

[Problem to be solved by the invention]

By the way, as mentioned above, generally when you want to compare an edited document (document after editing) with the original document (document before editing) (for example, if the purpose of the newly edited document and the purpose of the originally created document are different) (If you want to check whether there is a big difference)
Or, there are times when the original document is better than the newly edited document and you want to return to the original document before editing.

However, in the past, the original document itself was edited by inserting, deleting, etc. (the original document itself was destroyed), so once the edited document could not be compared with the original document. Furthermore, it is difficult to restore a document to its original form unless the operator remembers the original document.

SUMMARY OF THE INVENTION An object of the present invention is to provide a word processor that allows you to easily check not only the edited document but also the unedited document when editing the document once it has been created. be.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a document storage means for storing document data (row blocks shown in 12a to 12e), and an insertion or insertion method in this document data. is a specifying means for specifying the edit position for deletion, etc. (key input section 4 in the embodiment, third
(corresponding to the process in step 17 in the figure) and the edited document data at the specified editing position (corresponding to the line blocks shown in 14a to 14c in the embodiment) to the unedited document data at the editing position (corresponding to the processing in step 17 in the figure). The editing data storage means (corresponding to the block shown in 12b in the example) is stored in a one-to-one correspondence with the editing position (document memory 8 in the example).
) and instruction information (corresponding to the new/old line block discrimination flag 30 in the embodiment) that specifies whether the document display after editing is the document display before editing. When displaying a document and reading out the document data in the document storage means, at a position specified as an editing position in the document data, the edited data stored corresponding to the editing position is displayed. A readout means (corresponding to the display control section 9 of the embodiment, step 38 or step 46 in FIG. 5) reads out the document data or the document data before editing based on the instruction information, and the readout means sequentially reads out the document data or the document data before editing based on the instruction information. Display means for displaying the output document data (display section 10 in the embodiment)
).

[Effect]

To explain the operation of the means of the present invention, when an editing position is specified by the specifying means for document data stored in the document storage means, and editing is instructed to the document data at this editing position, the document data at the editing position ( Edited data (new document data) is created by editing this document data separately from the original document data), and this edited data is stored in the edited data storage means in a one-to-one correspondence with the above editing position. be done. When reading out the document data in the document storage means when displaying the document, the reading means reads the edited document data stored corresponding to the editing position or The document data before editing is read based on the instruction information stored in the instruction information storage means, and the display means sequentially displays the document data.

Therefore, when displaying document data after editing the document data, not only can the edited document data be displayed at the editing position within the document data, but also the unedited document can be displayed as necessary. Data can be displayed.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

(1) Configuration FIG. 1 is a block circuit diagram of a word processor according to the present invention. In FIG. 1, 4 indicates a key input section;
Reference numeral 5 denotes a key code analysis section, which analyzes the code of the key pressed by the key input section 4 and executes the document editing control section 7 based on the key code given to the document editing control section 7 and the document management section 6. Data from the document management section 6 and data in the document memory 8 are taken in, and the document data is displayed on the display section 10 via the display control section 9.

FIGS. 2a and 2b show the memory chain structure in the document memory 8 of the present invention before and after editing and proofreading.

Figure 2a shows the chain structure before editing and proofreading.
indicates a base pointer, and 12a, 12b, 12 have information to sequentially point to the next row block.
Those indicated by c, 12d, and 12e are line blocks in which one line of each sentence is one block, and indicate the memory from the 1st line to the 5th line, and point to the base pointer 11 and the next line of each line block. Information 11
a, 11b, 11c, 11d, 11e, and 11f sequentially connect the 1st to 5th lines from the beginning of the document in a chain shape as shown by arrows, and sequentially display the documents 1, 2, 3 on the display screen. , 4, and 5 lines are displayed or read.

FIG. 2b shows a structure in which a line is added by insertion to the second line block 12b in the chain structure described above before editing and proofreading. Furthermore, the second
Parts that are the same as those in FIG. The editing/proofreading pointer 13 contains the head information 14X of the new line block chains 14a, 14b, 14c after editing/proofreading, and the new line blocks 14a, 14b, 14 after editing/proofreading.
c editing/proofreading start character position information 14Y, editing/
It has editing/proofreading end character position information 14Z of the new line blocks 14a, 14b, and 14c after proofreading, and also has head information 12X of the old line block chain 12b before editing/proofreading, and old line block 1 before editing/proofreading.
2b, editing/proofreading start character position information 12Y, and editing/proofreading end character position information 12Z of the old line block 12b before editing/proofreading. Further, the editing/proofing pointer 13 holds tip information 12W of the next line block 12c that has no influence on the editing/proofing.

Reference numerals 14a, 14b, and 14c indicate old and new block chains, which are read and chained based on the information indicated by 14X, 14Y, and 14Z. still,
11c', 11c'', 11c are address information pointing to the next old and new blocks.
The line blocks 12c, 12d, and 12e, which are read and chained based on the information indicated by Z, and have no influence on editing and proofreading, are chained by the information indicated by 12W. Note that 15 indicates row block end information.

(2) Chain operation The line block chain operation during editing and proofreading mentioned above will be explained with reference to the float chart shown in FIG. First, when editing/proofreading is started (16), editing/proofreading start position is inputted (17). Now consider the case where the second row is increased by two rows due to insertion. An editing/proofing pointer is secured 18 in the memory of the document memory 8, and the editing/proofing pointer 13 is coupled 19 between the first line block 12a and the second line block 12b, as shown in FIG. 2b. Next, a new line block 2' is secured 21 in memory, line block 2 is edited, and a new line block 2' is created 22. In this way, a new block 2' is obtained in which characters are inserted into line block 2 in FIG. 2b.

Next, connect line block 2' to the edit pointer 23
Then, a detection step 20 is performed to determine whether or not the editing end has been reached.

If the editing end is not found, the line block 2'' that has increased as a result of inserting the next character is secured 21a in the same way as above, and along with the operation 22 to create a line block, the line block 2'' is set to the pointer of the previous line block 2'. join to. Then, such operations 21a to 23a are repeated in sequence to create row block 2 and combine them. As a result, Shinbank blocks 14a, 14b, 14c
is kept in memory. If the editing is at the end, block end information 15 is set 24 in the last line block indicated by the new line block 14c.

Next, the old line block chain 12b that needs editing
Line block end information 15 in the last line block of
Set 25.

Next, the editing/proofing pointer 13 moves to the old line block 1.
Point 2b to 26 and set information 12X, 12Y, 1
Chain with 2Z etc. Further, the editing/proofreading pointer 13 is set 27 to point to the line block 12c that had no influence on the editing/proofreading, and the editing/proofreading ends 28. When editing and proofreading are completed in this way, the memory block chain is completed as shown in FIG. 2b, and the document screen after editing and proofreading is controlled by the document management section 6 shown in FIG. Take out the block chain and display it.

In Figure 3, the Shinbank block chain is
However, this is not limited to three lines, and operations 21a to 23a are repeated as many times as necessary.

In the above operation, input 17 of the editing start position
etc. are executed by inputting from the key input unit 4. Note that this execution is entirely driven by interrupts and the like.

(3) Display operation Next, the display when a display start command is input will be explained using FIGS. 4 and 5.

Figure 4 shows the memory block chain structure after editing and proofreading similar to Figure 2b.
The figure is a float chart for displaying new and old row block chains.

In FIG. 4, 29 is a display address pointer, and 30 is a flag for determining old and new line blocks, which are instructed from within the document management section 6 shown in FIG. "1" is a flag to select the old and new block chains 14a, 14b, 14c, etc., "0" is the flag for selecting the old block chain 12
This is a flag for selecting b, etc.

In FIG. 4, pointer information 11a, 11b, 11
c, 11c', 11c'', 11c, 11d...11
For the address added after f, “0” is line information 3
1, and “1” indicates the editing/proofreading pointer information 32.

FIG. 5 is a flowchart of the display operation.

When the display starts 33, the pointer 11 is set 34 to calculate the address of the row block 12a of the first row. When the setting is completed, address calculation 35 of the next second row block is performed. in this case,
The second line is replaced by the editing/proofreading pointer 13, and the search 36 to check whether the line information is “0” is “1”, so it is output to the NO side, and the detection 37 whether it is a new document or not.
is accomplished. Here, detecting whether it is a new document 3
7 is performed by the flag 30 from the document management section 6. If this flag 30 is set to "1", it is assumed that a new document has been selected, and the new line block 14a is
The pointer address 11c' of the block is calculated 38, and it is detected 39 whether or not the new block is the end. If the new block is not the end in step 39, a pointer for calculating the next pointer address 11c'' is set 40 from the line itself.Then, after performing line decoration 41 for display (reversing printer, etc.), it is printed on a CRT or the like. Characters of the new block 14a are displayed on the display screen, that is, a one-line screen display 42. Then, it is detected whether the one-line screen display is the end or not. If it is not the end, 35 → 36 → 37 → 38 → 39 → 4
The path 0→41→42 is repeated to display each line of new line blocks 14b and 14c. In addition, in the display of the final new line block 14c, if the line block end information 15 is detected in the new line block, the pointer is set 44 from the editing/proofing pointer 13 for calculating the address of the next line block.
is executed. Then, the new block 14c is decorated with rows 41 and displayed 42.

Next, line block 1 that was not affected by editing/proofreading.
2c, 12d, 12e are 35 → 36 → 40 → 41
→ Display one line at a time in the order of 42 → 43 → 35, and at line block 12e, line block end information 1 is displayed.
5 is detected (screen display end) 43 and the display operation ends 45. Incidentally, in the pointer set 44, the aforementioned flag for terminating the display of the new or old line is set to "0". By setting this flag to "0", lines that have no influence on editing and proofreading are displayed.

On the other hand, if the document is detected to be an old document in the new document detection 37 (that is, the flag 30 is set to “0”)
is set), the edit point 13 performs address calculation 46 of the old line block 12b. Next, it is detected whether it is the old block end 47, and if NO, 40 → 41 → 42 → 43 → 35 → 36 → 37
→ Repeat the loop path of 46 → 47. When the line block end information 15 is detected in the old block end detection 47, the last old line block is displayed in the path 47 → 44 → 41 → 42, and then the line is displayed in the same way as 43 → 35 → 36 → 40 → 41 → 42. →43
Line block 12 that does not affect editing/proofreading in the path of
These are displayed sequentially following c, 12d, and 12e. Then, the row block end information 15 of the last row block 12e is detected and the process ends (45).

(4) Document update operation To return a document after editing/proofreading to the document before editing/proofreading, add a return address, etc. in the edit/proofreading pointer 13, and update the new block chain 14a after editing the erroneous editing/proofreading pointer. , 14b, and 14c, the block 12b before editing and proofreading is directly chained to the portion to which the editing and proofreading pointer 13 is chained, that is, the line blocks 12c, 12d, and 12e, and the editing pointer is erased.
The result is the document before editing and proofreading shown in FIG. 2a. Also, if the block chain before editing and proofreading is not needed, delete the line block chains 12c, 12d, and 12e before editing and proofreading, and
The block chain after proofreading may be directly chained to the document block to erase the editing pointer.

〔Effect of the invention〕

Since the present invention is configured and operated as described above, not only can editing results be immediately confirmed on the display screen, but also the position and status of the character string before editing can be viewed at any time if necessary. And at this time,
In addition to the original document data, only the edited data that has been added to the document data at the editing position needs to be stored in association with the editing position, so there are advantages such as not requiring a large amount of memory. have

[Brief explanation of drawings]

Figure 1 is a block circuit diagram of a word processor to which the present invention is applied, Figures 2a and b are memory chain structure diagrams before and after editing and proofreading, and Figure 3 is the editing and proofreading shown in Figures 2a and b. A flowchart for explaining the calibration operation, Figure 4 is a configuration diagram showing the memory chain structure for displaying the memory chain structure after editing and proofreading, and Figure 5 is a flowchart for explaining the operation shown in Figure 4. It's a chat. 4...Key input section, 5...Key code analysis section,
6...Document management section, 7...Document editing control section, 8...
...Document memory, 9...Display control unit, 10...Display unit, 12a, 12b, 12c, 12d, 12e
...Line block, 13...Editing/proofreading pointer,
14a, 14b, 14c...Shingan block, 30
...Flag for determining new and old row blocks.

Claims (1)

[Claims] 1. A document storage means for storing document data, a specifying means for specifying an arbitrary editing position within this document data, and the document data after editing at the specified editing position is defined as the document data before editing at the editing position. an editing data storage means that stores the edited data independently in correspondence with the editing position; an instruction information storage means that stores instruction information indicating whether the document display after editing is the document display before editing; and the document storage means when displaying the document. When reading the document data in the means, at a position specified as an editing position in the document data, the edited document data or unedited document data stored corresponding to the editing position is read based on the above instruction information. 1. A word processor comprising: reading means for reading document data; and display means for displaying document data sequentially read by the reading means.