JPH0264850A - Document processing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a document processing device having a function of typesetting a document.

[Prior Art] Conventionally, when creating a document as shown in Fig. 2, 21.22
．． For a mathematical expression part like 23, you can explicitly define floating blocks, fixed blocks, etc. to separate the text part and area, input and edit the mathematical expression in that area, and then change the line pitch by changing the line pitch, etc. The formula was expressed by adjusting the feed amount and combining multiple lines of characters.

However, the method of dividing areas into floating blocks or fixed blocks and inputting formulas into them has the following problems.

(1) Not only does the number of operations to define blocks increase,
If you want to make the mathematical expression part larger as you edit the input, you will need to change the size of the area, resulting in poor operability.

Furthermore, when formulas are expressed using a combination of ordinary characters, the following problems occur.

(1) Since the mathematical expression part is not organized, the expression of the mathematical expression may be corrupted even if parts other than the mathematical expression are edited.

(2) Complex mathematical expressions such as 22 in FIG. 2 cannot be expressed.

[Purpose] In view of the above points, an object of the present invention is to provide a character processing device that automatically creates a mathematical expression area by specifying the start of mathematical expression processing and can smoothly process eight lines of mathematical expressions from character input. .

An object of the present invention is to provide a document processing device that can automatically change the size of a mathematical formula area in accordance with an increase or decrease in data within the mathematical formula area. SUMMARY OF THE INVENTION An object of the present invention is to provide a character processing device that can handle mathematical expressions as a group as a mathematical expression area, and can re-edit already created mathematical expressions by moving a cursor as part of character data. .

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a system block diagram of a document processing apparatus according to an embodiment of the present invention.

In the figure, 1 is the CR used in the Rusk scan method.
T display section, 2 is a video RAM (VRAM) that stores display pattern information for one screen, and 3 is a control section that controls writing of pattern information into the VRAM 2 and reading from the CRT.

5 is a main memory having an area for storing control programs and document data as shown in FIGS. 4, 5, and 6, which will be described later, and 4 is a microprocessor (MPU) that performs the main control of this device. .

The MPU 4 includes a keyboard 8 for inputting character data, etc., and a pointing device (for specifying positions on the CRT and inputting and editing graphic data, etc.).
PD) 9 is connected.

6 is a hard disk device in which document files and character fonts are stored. Reference numeral 10 is a printer for outputting the created document, and reference numeral 11 is a floppy disk device for storing document files and the like. Each of these constituent blocks is connected by an I10 bus.

Here, FIG. 3 is a diagram showing an example of the state of character data to be edited in the main memory 5 and control information used for editing. FIG. 4 is a flowchart showing the overall processing flow and formula creation processing. FIG. 5 is a flowchart illustrating the flow of cursor movement processing, FIG. 6 is a flowchart explaining the flow of mathematical formula input/editing processing and redisplay processing, and the first part is a diagram showing changes in character data and cursor position when creating mathematical formulas.

Next, referring to FIGS. 3, 4, 5, 6, and 7, a process for inputting, editing, and displaying character data mixed with mathematical expressions as shown in FIG. 2 will be described.

When the character input/edit process is started, the input is accepted at step 41 in FIG. In step 42, the type of input is determined, and if it is an instruction to process a mathematical formula, the process proceeds to step 43. In the formula creation process in S43, a formula start command and a formula end command are inserted in the character string position indicated by the cursor position of the character editing control information in FIG. 3 in S49, and the state in 72 is changed from the state in FIG. The cursor is moved between the mathematical expression start command and the mathematical expression end command inserted in S40 of FIG. 4(b), and
The state becomes 3 and the formula input/edit process shown in Figure 6 starts.
After finishing, return to S41.

When the input determined in S42 is not a formula processing instruction,
The input is further determined in S44, and if it is a cursor movement instruction, the process proceeds to S45, cursor movement 1IllIA.

In the cursor movement process, the direction of movement is determined in 351 of FIG. If a range is being specified, the character strings specified in the range are subject to deletion or movement as a group, so the formula must be treated as a group, and in S54 the cursor is moved to the formula end command. Move to the next character, and if the range is not specified, move the cursor to the next position after the mathematical formula start command in S56, enter the mathematical formula input editing process shown in FIG. 6, and return to S41 after completion.

If it is determined in S51 that the character is a cursor, the character immediately before the current cursor position is checked in S57, and if it is a formula end command, it is determined in S58 whether or not a range is being specified, and if the range is being specified. moves the cursor to the formula start command in S59, and if it is not in the range specification, 55
11 to move the cursor next to the formula start command,
The formula input editing IA shown in FIG. 6 is entered, and after completion, the process returns to S41.

If the input determined at 344 in FIG. 4(a) is not a cursor movement instruction, the input is further determined at S46, and if it is an end instruction, end processing is performed at 348 to end character editing. .

If the end is not specified, the process advances to step 47, where the corresponding editing process is performed, and the process returns to step S41.

In the formula input editing process, in FIG.
The input is accepted in S62, and if the instruction is other than termination, the process proceeds to editing processing in S83, the editing result is redisplayed in S64, and the process returns to input in S61. If the instruction is to end at S62, the mathematical formula input editing process ends.

For redisplay, set the text pointer pointing to the character to be displayed at 365 in FIG. 6(b) to the beginning of the character string, and proceed to step S66.
After setting an initial value to the character display position indicating the position where the character should be displayed, the steps from S67 onwards are repeated to display the character string.

In S67, it is determined whether the display has ended, and in S68, it is determined whether the characters to be displayed are commands, and if they are normal characters,
One character is displayed in steps S69.5610.5611, and the process returns to S67.

If the judgment is 368 and it is a formula start command, 5
At 612, the mathematical typesetting display process is called to display the mathematical formula part, and at 5613, the size of the displayed mathematical formula is determined.
At 5614, the character display position, which is the position where the next character should be displayed, is advanced by the size of the formula, and at 5615, the text pointer is advanced to the next character of the formula end command, and the process returns to S67.

By steps 5613 and 5614, even if input editing is performed on the formula and the size of the formula changes, the size of the formula block will be automatically changed each time it is redisplayed, and the entire character data will be assembled correctly. Become.

As described above, you can create and change formulas without performing any special operations during normal character editing, and the size of formulas can also be changed automatically by inputting and editing the character data being edited. This can be reflected in the way it is assembled.

FIG. 8 is a diagram showing an example of the data structure of a mathematical formula and a display example of the data, and FIG. 9 is a diagram showing an example of a change in data due to the mathematical formula input editing process and a corresponding change in display.

An example of how to proceed with the mathematical expression input/edit process will be described below with reference to FIGS. 8 and 9. Here, we will consider the case where the formula shown in FIG. 8(a) is newly created.

■Instructing mathematical expression processing in character editing processing (Figure 4 (a)
In S42-S43), a mathematical expression start command and a mathematical expression end command are inserted at the cursor position, the cursor position is moved next to the mathematical expression start command, and the data becomes 91 (S40 in FIG. 4(b)).

■Enter "y;". The data will be in the state 93 and will be displayed as 94.

■Instructs to create a "route". The route/start command and route/end command are inserted at the cursor position,
The cursor position is the root.

After the start command, the 8th shift is executed, the data becomes 95, and the root symbol is displayed as 96.

■Enter "Sin". The data becomes 97 and 98
will be displayed.

■Instruct to create "fraction". The fraction/start command, fraction/separator command, and fraction/end command are inserted at the cursor position, the cursor position is moved to the next fraction/start command, and the data becomes 99.
Fractional lines like 10 are displayed.

■Enter "2" and move the cursor. The data is in the state 911, and "2" is displayed on the denominator side like 912.

■Enter "1" and move the cursor. The data is in the state 913, and "rl" is displayed on the molecule side like 914.

■Input rX, l. The data becomes 915 and 91
6 will be displayed.

By processing the above steps, it was possible to create and display a sentence that does not include the mathematical formula shown in FIG. 8(a).

[Other Embodiments] The input and editing of character data including the above-mentioned mathematical formulas can be performed for character data flowing over multiple pages or for character data within an area divided by fixed blocks, floating blocks, etc. Furthermore, it can be similarly applied to graphic data and character data included in table data.

Further, in the above explanation, only numerical formula commands are used as commands, but it can be applied in the same way even if other commands such as character modification are included by expanding the editing and display processing.

As explained above, according to the present invention, formulas can be created and changed without complicated pre-operations, and the size of the formula can be automatically changed by inputting and editing the text data being edited. This has the effect of making it easier to create documents that include complex mathematical formulas, such as the one shown in Figure 2.

Furthermore, since the mathematical formula part can be treated as one character, the second
As shown in FIG. 24, it is also possible to easily combine a mathematical formula part and a non-mathematical ordinary character part and add a decoration such as a box.

In addition to character modifications such as enclosing rules, underlines, and overlines, you can also specify alignment such as prohibiting separation to prevent words from being cut off when they reach the end of a line.

[Effects] As detailed above, according to the present invention, it is possible to easily create a mathematical formula area in a document, and the size of the mathematical formula area can be automatically changed according to the data in the mathematical formula area. became possible.

According to the present invention, formulas can be handled as a group, and already created formulas can be re-edited by moving the cursor or the like.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a document processing device according to an embodiment of the present invention, FIG. 2 is a diagram of an example document containing a mathematical formula, and FIG. 3 is a state of character data to be edited in the main memory 5. Figures 4, 5, and 6 are flowcharts showing the flow of processing for editing character data including mathematical formulas, and Figure 7 is a flow chart showing an example of control information used for editing. Figure 8 is a diagram showing an example of the data structure of a mathematical formula; Figure 9 is a diagram showing an example of data changes and display changes when inputting and editing a mathematical formula; It is. 1--CRT display unit 2-m-Video RAM 3-m-Display control unit 4-11 Microprocessor 5-11 Main memory 9-m-Bointing device (1) Character data to be edited 8th Number of figures S: Formula/Start command number E: Formula/Ent command S: Root/Start command E, Root/End command S Bifraction/Start command SP: Fraction/Separator command E/Fraction/End command

Claims (1)

[Claims] (1) A specifying means for specifying a mathematical formula area in a document, a storage means for storing information on the area specified by the specifying means, an input means for inputting mathematical formula data in the area, and a data input by the input means. A document processing device comprising: updating means for updating area information stored in the storage means in accordance with an increase or decrease in mathematical formula data; and typesetting means for typesetting the mathematical formula area in the document as one unit. .