JPS62198950A - Character processor - Google Patents

Abstract

PURPOSE:To attain the effective application of a display picture by changing a pattern of blank sheet marks according to the parameter of the input character data. CONSTITUTION:At the time of an instruction of forms is given for change of a blank sheet display, a character generator 5 stores the blank sheet patterns in a character pattern store area MPW of a RAM 8 for each designated form based on the information of a form type designating register. A blank part is detected within a document memory BS and the designated form-based blank sheet patterns stored in the area MPW are stored in an area of a video RAM 4 corresponding to the detected blank part of the memory BSM. This storing action is carried out with all blank parts. When these storing actions are through, the processing of a switching means is over.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a character processing device, and particularly to a character processing device capable of displaying input characters on a display device, in which no characters are input. The present invention relates to a character processing device that displays a blank mark.

[Prior Art] Conventionally, in order to display a blank mark on a document display screen that displays input characters, a character code stored in a character code storage area in RAM (random access memory) is used. CG the corresponding dot pattern (
A character generator) was used to write the data into a VRAM, and a CRT controller was used to display blank marks in areas where no character data had been input. There is only one type of blank mark, and its meaning is only to indicate that no character data has been input at that position.

[Problems to be Solved by the Invention] For this reason, in order to display a meaningless blank mark on the display screen, information about the paper type, horizontal writing,
In order to have parameter information included in character data such as vertical writing on the display screen, a separate display area must be secured for that purpose, which poses the problem that the limited display screen cannot be used effectively. .

[Means for Solving the Problems] A blank paper pattern changing means is provided for changing the pattern of blank marks according to parameters of input character data.

[Function] By this blank paper pattern changing means, the pattern of blank paper marks can be changed according to the parameters of the character string, and the display screen can be used effectively.

[Example] First, the concept of the present invention is shown in FIG. First, when the power is turned on, a document is displayed on the CRT using the document display means. The blank page display pattern displayed at this time is according to the parameters specified by the power supply official, such as the paper size, and the specified blank page display pattern is imported from the character generator using the blank page display pattern switching means and stored in the blank page display section. Then, the stored blank page display pattern is displayed using the document display means in the same positional relationship. Thereafter, the paper size is specified using the character input means. The designation of the paper size is written into the document memory based on information from the character input means, and the paper type is designated based on the information using the paper type designation means. A blank page display pattern according to the paper type is imported from the character generator based on the specified paper type information, and the previous blank page display pattern is rewritten with the newly imported blank page display pattern using the blank page display pattern switching means. Display using document display means.

FIG. 2 is a diagram showing an example of the configuration of the character processing device of the present invention. A CPU (central processing unit) 6 executes the contents of a control program or other control program according to the flowcharts shown in FIGS. 4, 5, and 6 contained in a ROM (read only memory) 7. By doing so, each device connected via the path line 9 is controlled. A keyboard 1 is connected to this pass line 9, and character information input from this keyboard 1 is supplied to an MCW (character code storage area) in a part of RAM (random access memory) 8 via the pass line 9. Based on the information, it is also supplied to and stored in the document memory BSM. In order to display the stored character information on the CRT (display device) 2, the character information stored in the document memory BSM is used, and a character pattern corresponding to the character information is imported from the character generator 5. The captured character pattern is loaded into the video RAM 4 and displayed on the CRT 2 using the CRT controller 3.

To switch the blank page display, the paper size is specified using the paper type specification register PR existing in the RAM (random access memory) 8 based on the character information input from the keyboard l, and the paper size is specified using the paper type specification register PR existing in the RAM (random access memory) 8. Based on this, a blank page display pattern of the paper type is loaded from the character generator 5, the loaded blank page display pattern is written into the video RAM 4, and is displayed on the CRT 2 using the CRT controller 3. All of the above processing is performed by instructions from the CPU 6 via the pass line 9.

FIG. 3 is a layout diagram of the document memory BSM. In this embodiment, it is assumed that one line has 20 characters and has a capacity for 10 lines. Characters, symbols, etc. input from the keyboard 1 are stored in the document memory BSM and displayed on the CRT 2 in the same positional relationship.

The part in which characters are stored in the document memory BSM is written by extracting a character pattern corresponding to the character information from the character generator 5 from the character information inputted from the keyboard 1.

Furthermore, in the portion of the document memory BSM where no characters are input, a blank pattern is written as described above. This document memory BSM is connected to the video RA in the same positional relationship.
Write to M4 and use CRT controller 3 to actually write C
Displayed on RT2.

Next, FIG. 4 shows the operation of the character processing device with this configuration.
When this apparatus, which will be explained according to the flowcharts of FIGS. 5 and 0, is powered on, it first proceeds to step S1 in FIG. 4. In step S1, the document memo 983M in RAMa
A code for normal blank display is embedded in the entire area, a pattern corresponding to the code is taken out from the character generator 5, and it is written into the video RAM 4. Thereafter, the process proceeds to step S2, where the images are displayed on the CRT 2 in the same positional relationship as written in the video RAM 4. Next, the process advances to step S3, where input is performed using the keyboard l. If any key is input, the key is determined using the key determination in step S4 to determine what the input key means. The determined keys are divided into two types.

A key determined as a normal character key is stored as a character code in an MCW (character code storage area) existing in RAMa, and the code is also embedded in the document memory BSM.

In the character pattern importing process in step S8, the character pattern is imported from the character generator 5 using the character code in the document memory BSM, and the character pattern is imported into the video RA.
Write to M4. Thereafter, it is displayed on the document display means in step S2. The key determined to be a paper type designation key in the key determination in step S4 becomes a paper type designation key only when the key input is performed at the location specified in the key input in step S3 (paper type designation). The key determined to be the paper type designation key then proceeds to step S5, where the paper type is designated using the paper type designation register PR. Next, the process proceeds to step S6, and the paper type is determined by referring to the paper type specification register PR. If the paper is specified for normal blank page display, the blank page display pattern stored in step S1 is used as it is without changing the blank page display. The document is displayed using the document display means in step S2.

If the paper is specified to change the blank page display, the blank page display pattern switching means in step S7 rewrites the normal blank page code stored in the document memory BSM at the time of initialization in step Sl to the specified paper tray blank page code, and the blank page corresponding to that code is changed. A pattern is taken in from the character generator 5 and written into the video RAM 4. Also document memo 9
The portion stored as a character code in 83M is displayed as it was written in the video RAM 4 in step S8. The above process is performed, and when the end key is input by the key input in step S3 and the end key is determined to be the end key in the key determination in step S4, this process ends.

FIG. 5 is a detailed flowchart of the blank page display pattern switching means. Step S5 When the blank page display is changed according to the information in the paper type designation register PR, the process shown in FIG. 5 is performed. First, the character generator 5 stores a designated paper container blank paper pattern in MPW (character pattern storage area) based on the information in the paper type designation register PR. A part (blank paper) in which no characters are input in the document memory BSM is detected, and a specified paper container blank paper pattern, which is stored in MPW (character pattern storage area), is stored in a part of the video RAM 4 corresponding to the part. This is done for all blank areas where no characters have been input, and when the storage process is completed, the blank page display pattern is removed from the processing by the switching means.

If the key is determined to be a normal character key in step S4, the process proceeds to step S8, character pattern import processing means. FIG. 6 is a detailed flowchart regarding step S8.

Keys that are determined to be normal character keys have a character code of R.
MCW (character code storage area) existing in AMa
The character code is also stored in the document memory BSM. The character pattern corresponding to the stored character key is imported from the character generator 5 and stored in the video RAM.
Store in 4.

After storing, exit from the character pattern import processing procedure.

In the above description, the parameter included in character data is the paper type, but the present invention can be applied to other formats such as vertical/horizontal writing, Japanese/English text, etc.

As explained above, by selecting the paper type, the display of blank pages on the document display screen where no characters have been input (blank paper) can be switched, which has the effect of making it easier to identify the paper type.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the concept of the present invention. , FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention.゛Figure 3 is a diagram showing the memory structure. FIG. 4 is a detailed flowchart showing the processing steps of the present invention. FIG. 5 is a flowchart of blank display pattern switching means included in the process of FIG. 4. FIG. 6 is a flowchart of the character pattern import processing means included in the process of FIG. 4.

Claims (1)

[Scope of Claims] Input means for inputting character data; Storage means for storing character data input from the input means; Character data stored in the storage means and character data not stored. display means for displaying the data stored in the storage means according to a blank code indicating that the blank paper pattern is displayed by the display means corresponding to the blank paper code according to parameters of character data input from the input means; A character processing device comprising: a blank paper pattern changing means for changing a blank paper pattern;