JPH08161309A - Word processor - Google Patents

Abstract

PURPOSE: To set spacing quantity corresponding to a character and to facilitate type setting work by automatically giving a character attribute to inputted character information. CONSTITUTION: The character and the character attribute, which are inputted by the character attribute input part 11 of a document generation device, is stored in a character information storage part 12. A numerical formula setting part 13 retrieves the character attributes before and after the character based on information on the character information storage part 12 and executes type setting with appropriate character feeding. Thus, inputted numerical information is typeset as a numerical formula in accordance with spacing quantity between the attributes which are previously set by the format and the like. A character typesetting part 14 generates the typeset document by arranging the numerical formula generated by the numerical formula setting part 13 in the document. The result is displayed on CRT 16 and is printed by a printer 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document creating apparatus for creating a document containing mathematical expressions.

[0002]

2. Description of the Related Art Conventionally, in a document creation device such as a word processor or DTP, "advancing" is performed between adjacent characters.
It was set at and was usually constant. In order to further adjust the space between the characters specified by the character advance, a space character was prepared, and when it was desired to leave a space between the characters advanced by the character advance, it was inserted at that position.

[0003]

However, in mathematical expression documents, the distance between ordinary characters is determined by the attribute between characters. For example, in the mathematical expression ab = -5, the first "minus (-)" is an attribute of a binary operator, and the spaces before and after this are usually separated. The "minus" at the end is an attribute called an ordinary sign, and the space between the character and the character after this is usually reduced.

As described above, in the case of creating a document that depends on the meaning of a mathematical expression input by the character sending method, in other words, the attribute of a character, according to the conventional means, the user understands the meaning of the mathematical expression to be input and is appropriate. However, there is a problem in that it is complicated to adjust the space between characters.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a document creating apparatus capable of easily adjusting the space between characters.

[0006]

In order to solve the above-mentioned problems, the present invention provides a mechanism in which inputtable characters are classified according to character attributes, the user inputs characters, and the character attributes are attached. . In addition, the user is allowed to set a character advance (hereinafter referred to as a spacing amount) based on a combination of character attributes according to a format or the like. As a result, it is possible to typeset characters by inputting characters and sending characters according to the character attributes. The present invention has means for classifying the characters that can be input by a mathematical expression by the character attribute and obtaining the character attribute upon input, and means for typesetting by character forwarding according to the attribute.

[0007]

With the above structure, a character and a character attribute are input from the character attribute input unit, the input character attribute information is stored, the character attributes before and after the character are searched based on the attribute information, and an appropriate character feed is performed. I do.

[0008]

EXAMPLES Examples according to the present invention will be described below.

FIG. 1 is a block diagram of a document creating apparatus according to an embodiment of the present invention, and FIG. 2 is a logical block diagram of essential parts of the document creating apparatus.

In FIG. 1, 1 is a ROM (read only memory) which stores a control program according to the flow chart of FIG. 3, 2 is a CPU (central processing which executes the control program of the ROM 1 and controls each element described later). (Device), 3 is a keyboard for the user to input information such as character input, 4 is the position of the character input, and mouse is used for performing the character input, and 5 is an aid for saving the created document The storage device 6 is a CRT that displays the appearance of the input document.

In FIG. 2, 11 is a character attribute input section for inputting characters and character attributes, 12 is a character information storage section for storing characters and attribute information input by the character attribute input section 11, 1
3 is a mathematical typesetting unit that searches for character attributes before and after a character based on the information in the character information storage unit 12 and typesets it with appropriate letter forwarding.
Reference numeral 14 is a character typesetting section for arranging mathematical formulas created by the mathematical typesetting section 13 in the document, 15 is a printer for printing the formatted result, and 16 is a CRT for displaying the same result.

Next, with reference to FIG. 4, a means for inputting attributes together with character input and a means for designating a spacing amount between attributes will be described. In FIG. 4, A1 is a display example (palette) by the character attribute input unit 11 in which characters that can be input by a mathematical expression are classified for each character attribute. The user inputs a character by selecting the character in the mathematical expression palette displayed on the CRT 6 with the mouse 4 or the like. Upon receiving the input instruction, the character attribute input unit 11 reads information indicating what character attribute is input from the palette along with information such as which character is to be input, and stores it in the character information storage unit 12.

The input characters are typeset by the mathematical typesetting unit 13 according to the spacing amount between attributes set in advance by a format or the like, and the result is displayed, for example, in the window A3 in FIG. In FIG. 4, A2 indicates an example of a window for setting the spacing amount between the attributes referred to by the mathematical expression typesetting unit 13. For the spacing between attributes, there are square combinations of character attributes classified by the palette A1, and the combinations are expressed in a matrix so that the user can specify them.

The spacing amount calculation procedure in the mathematical expression typesetting section 13 will be described by taking the mathematical expression ab = -5 in FIG. 5 as an example. A character input using the keyboard 3 or the like is stored in the character information storage unit 12 together with character information and character attribute information.
It is stored in. Further, here, the x coordinate when the typesetting is performed only with the character pitch has already been obtained, and the character information storage unit 12
(FIG. 5A).

First, an attempt is made to obtain a spacing amount between the character "a" and the preceding character. However, the letter "a"
Since is the beginning of the string, no spacing is taken. Therefore, SPACING = 0. Next, the spacing will be considered for the spacing target character "-". Previous letter "a"
Since is an ordinary symbol, the spacing amount of the ordinary symbol × binary operator is obtained, and SPACEING is updated. Further, the x coordinate of the character "-" is changed by the amount of SPACEING (FIG. 5).
(C)).

Further, for the character to be spaced "b: ordinary symbol", SPACEING is updated by the spacing amount with the previous character "-: Binary operator", and the x coordinate of the character "b" is updated. . The same process is repeated thereafter, and the process ends when the end of the character string is detected. The operation of the document creating apparatus of this embodiment as described above will be described below with reference to the flowchart of FIG.

First, a variable SPACING, which stores the total amount of spacing that has appeared so far, is initialized to 0 (step 1). Next, a target character whose spacing amount is to be checked is set (step 2), and in step 2, it is checked whether the target character indicates the end of the character string (step 3). The character attribute of the target character is obtained (step 4). If it does not have the character attribute, the target character is advanced (step 5) and the character before the target character is obtained (step 6). If the target character is the first one, it is not necessary to perform spacing, so the target character is advanced in step 2 (step 7). Go to the attribute of the previous character (step 8). If the character has no attribute, in step 6, the spacing amount with the previous character is calculated (step 9). When the attributes of are obtained, SPACERING is performed according to the combination.
Is updated (step 10). The x coordinate of the target character is updated with the value of SPACEING updated in step 10 (step 11).

[0018]

EFFECTS OF THE INVENTION By acquiring a character attribute together with input and setting a spacing amount according to a combination of attributes, it becomes easy to create a document in which a certain character interval must be set according to a character attribute such as a mathematical expression. It can be carried out.

[Brief description of drawings]

FIG. 1 is a block diagram of a document creation device according to an embodiment of the present invention.

FIG. 2 is a logical block diagram of main parts of the document creating apparatus according to the embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the document creating apparatus according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram of a screen and an input unit according to an embodiment of the present invention.

FIG. 5A is a diagram explaining a spacing operation of the document creating apparatus according to the embodiment of the present invention. FIG. 5B is a spacing operation explanatory diagram of the document creating apparatus according to the embodiment of the present invention. Explanatory diagram of spacing operation of document creating apparatus in example (d) Explanatory diagram of spacing operation of document creating apparatus in one embodiment of the present invention

[Explanation of symbols]

 11 Character Attribute Input Section 12 Character Information Storage Section 13 Formula Formulation Section

Claims (1)

[Claims] 1. A character attribute input section for inputting a character attribute, a character information storage section for storing the attribute of a character input from the character attribute input section, and a character based on information in the character information storage section. A document creation device, comprising: a mathematical expression typesetting unit that searches for the attributes of characters before and after and typesets with appropriate character feeding.