JPS60150162A - Line effective range display system - Google Patents

Abstract

PURPOSE:To improve the document editing operation with a document production system by displaying a line effective range on the screen of a display device with line head and end marks. CONSTITUTION:The data supplied with operation of keys on a keyboard 10 is analyzed and processed by a CPU20 and then written to a text buffer 42 in a memory 40 in the form of codes. At the same time, the data of the buffer 42 is separated for each display screen of a display device 60 and set to a display buffer 43. Then this data is read out every character and converted a corresponding character pattern by a character generator 50 to be displayed at the device 60. When the separation is carried out at the head position (line head) of the buffer 42, a head mark A is put into the 0th digit of the buffer 43. Then the first 11 pieces of 12 separated data are stored to the 1st and following digits. In case the character data on the line end is included, a line end mark B is put into the 11th digit of the buffer 43. Then 11 pieces of data including the line end character data are stored in the 10th and its preceding digits.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a line effective range display method, and particularly to a line effective range display method suitable for a document creation system equipped with a display section of one line or less.

[Background of the invention]

In a document creation system that has a full-line display such as a video nice play device, the effective range of one line is usually displayed in the margin of the display, and
'bCreating and editing documents because it is done automatically'-1.
f: I don't feel much relief. On the other hand, it is relatively 0 (valence (
8 LCD, etc., display section with one line or less than JL?
! A simple document creation system 11 equipped with the above-mentioned document preparation system 11 has come to be used by the general public. However, in conventional sentence creation systems of this type, because the display surface is limited, it is common that they do not have a function to display in the line effective column. It was difficult to recognize the end of a line, which caused users to make line break mistakes.

[of the invention]

An object of the present invention is to display the effective line range on the display section in a text creation system equipped with a display section for -lines or less, to facilitate recognition of the beginning and end of a line, and to improve document editing operations. The aim is to achieve this goal.

[Summary of the Invention] In order to achieve the above object 1), when the beginning of a line or the end of a line appears within the display range of the display section, the present invention displays a bullet immediately before the beginning of the line and an end of the line immediately after the end of the line. is displayed to clarify the effective range of the line.

[Embodiments of the invention]

FIG. 1 is a system configuration diagram of an embodiment of the present invention. Keyboard 1'] The data inputted by the OJ2 key operation is analyzed and processed by the central processing unit (CPU) 20, and written to the text buffer 42 in the memory (RAM) 40 in the form 21~. In parallel with this, the data in the text buffer 42 is cut out for each display screen of the display device 60 and set in the display buffer 43. The data in the display buffer 43 is read out character by character, converted into a corresponding character pattern by a character generator 50, and supplied to a display device 60 for display.

Programs necessary for processing by the CPU 20 are stored in memory (ROM).
) 30, and its program includes a line start/end line processing blockrum and a display programmer 11 as related to the present invention. Further, in the ROM 30, a line start pattern and a line end pattern, which will be described later, are prepared in advance as fixed patterns.

A pointer 41 in the RAM 40 is used to determine the beginning read position of the j display portion data extracted from the text no. The text buffer 42 has a storage capacity FJ for one line of sentence '2 data. below,
It is assumed that one line consists of 40 digits (40 characters). The display buffer 43 has a memory capacity corresponding to the display digits of the display device 60. Hereinafter, it is assumed that the display screen consists of 12 digits. Therefore, the text buffer 42 has 40 digits, and the display buffer 43 has 12 digits.

FIG. 2 shows the relationship between the text buffer 42 and the display buffer 43. The second case a) is when cutting out from the beginning position (beginning of line) of the text buffer 42,
In this case, the bullet A is placed in the 0th column of the display buffer 43.
is inserted, and of the 12 single-character data extracted, 11 characters from the beginning are stored in the first digit and beyond. FIG. 2(b) shows a case where the beginning and end of a line are not included. In this case, the 12 character data cut out from the text buffer 42 are stored as they are in the 0-11 digit openings of the display buffer 43. Figure 2(c) shows the case where character data at the end of the line is included.
In this case, the line end symbol I is placed in the 11th column of the display buffer 43.
Insert 3 and include end-of-line character data before column 1o]1
stores data.

Here, the beginning of a line can be recognized by the value of the pointer 41 being rOJ, and the end of a line can be recognized by the value of the pointer 41 being "29".

FIG. 3 shows the relationship between the text buffer 42 and the display buffer 43 when the printing range is limited to a certain range on the screen of the display device ff160 before inputting data from the keyboard. The symbols A and B at the beginning and end of the line are set at desired positions in the display buffer 43.

FIG. 4 is a flow diagram of the line start and end line processing program. First, 12 pieces of data are cut out from the text buffer 42 and stored in the 1 display buffer 43 according to the instructions of the pointer 41 (step 1o1).

Next, the start of the line and the end of the line are determined based on the value of the pointer 41 (
Steps 102, 104). If the head of the line is detected, the head of the line code 1~ is set in the O column of the display buffer 43 (step 103).

As a result, the contents of the display buffer 43 are sequentially shifted one digit to the right, and the data at the 11th digit is removed. On the other hand, if the end of a line is detected, the end of line symbol code is set to the 11th Nith in the display buffer 43 (step 105).

As a result, the contents of the display buffer 43 are sequentially shifted to the left one digit at a time, and the data of ONj rl is evicted.

FIG. 5 is a flow diagram of the display program. Data is read character by character from the display buffer 43, and it is determined whether the data is for the bullet symbol code or the line end symbol code 1 (step 2).
01,202). If it is not either, refer to the character generator 50 and select the corresponding character pattern. r) (Step 203), and displays this on the display F[60] (Step 205). On the other hand, the beginning of the line /
In the case of a line end symbol code, the line start pattern or line end pattern is obtained from lζ0M30 (step 204).

In the above embodiment, the document creation system in which the display device has only 6 display functions at the end of one line has been described as an example, but the technology of the present invention is not limited to such a document creation system. Further, the shapes of the symbols at the beginning and end of the line may be any shape as long as the beginning and end of the line can be recognized.

〔Effect of the invention〕

As described above, according to the present invention, the effective range of lines is displayed on the screen of one display device using the starting and ending symbols, making it easy to create and edit documents in a one-document creation system.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram of an embodiment of the present invention, Fig. 2 is a diagram showing the relationship between a text buffer and a display buffer according to the invention, and Fig. 3 is an example of inserting start/end of line symbols in advance. 4 and 5 are flow diagrams illustrating the operation of the present invention. 10 ・Keyboard 1~, 20 Central processing unit, 30
ROM, 40-RAM, 41 pointer, 42 text buffer, 43 display buffer, 50 character generator, 60 display device. Figure 1 Figure 4

Claims (1)

[Claims] (1) In a document creation system in which data input via a keyboard is processed by a processing device, sequentially stored in a memory, and data is cut out from the memory and displayed on a display device,
The line validation method is characterized in that it is determined whether the data cut out from the memory is located at the beginning or the end of a line, and when the data is located at the beginning or the end of a line, a bullet symbol or an end symbol is output to the display device and displayed. Range display method.