JPH0552273B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] In a device that edits and prints out a character string (for example, a text), when inserting another character string into the character string and printing it, conventionally It is difficult to insert characters other than Frequently inserting characters of different sizes and processing such as closing the margins that occur at that time has the problem that control becomes extremely complicated and is virtually impossible to implement. Ta. In order to solve these conventional problems, the present invention stores information indicating the horizontal position of each character in a character string,
The present invention discloses a technology that enables accurate recognition of the position of characters to be printed at all times by updating the information each time a process that causes character movement occurs.

[Industrial Application Field] The present invention relates to character printing position control, and in particular, it is possible to insert other characters or character strings of arbitrary size into a character string containing skip data, and , relates to a control method that can easily arrange the appearance of subsequent character strings.

[Prior Art] For example, when printing a tally table, etc., the format of a character string in a fixed part is determined and characters or character strings in a variable part are inserted into this format.
The fixed part of the character string is held as original data, while the variable part is held as modification data, and the modification data is superimposed on the original data to generate a character string to be printed. At this time, movement of the character string of the original data may occur, but conventionally this control has been controlled by managing the area (position) of each character using hardware.

[Problems to be Solved by the Invention] In recent years, complex and diverse processing of text related to printing has been required.
For example, characters of any size must be allowed to be inserted, and it may be necessary to insert characters multiple times into the same character string. In such a case, the horizontal position of each character in the character string frequently moves, and the amount of movement is not constant. Furthermore, if the character string of the original data includes skip data for merging or the like, the movement of each character position is even more rapid.

On the other hand, character position management in conventional methods is done by hardware as mentioned above, so complex changes in character position occur frequently and the amount of movement is not constant. There was a problem in that it was very difficult to execute control that could be followed, and it was virtually impossible to implement it.

In view of these conventional problems, the present invention is capable of easily following the complex and various movements of characters in a character string during editing, and is therefore capable of copying modification to original data including horizontal skip data. It is an object of the present invention to provide a control means for character string editing of a printing device that is capable of editing character strings.

[Means for Solving the Problems] According to the present invention, the above object is achieved by having an image memory that stores a character pattern to be printed in bit correspondence. In a printing position control method that performs printing by replacing a part of the original character string with another character string, the character data of the original character string and the character string to be replaced with a part of the original character string has information indicating the character width of each character. , the horizontal skip data included in the character string has horizontal position information, and the original character string and the original character string are stored in a buffer for editing character examples before being expanded to the image memory for printing. When storing a character string in which a part of This is achieved by a method for controlling the horizontal position of printed characters, which is characterized in that:

[Embodiment] FIG. 1 is a block diagram of an embodiment of the present invention, in which 1 is a control unit, 2 is a memory, 3 is a page buffer (PB), 4 is a page buffer control table (PBCT), and 5 is a copy modification. control table (CMCT), 6 is copy modification buffer (CMB),
7 represents a buffer memory, and 8 represents an image memory.

FIG. 2 is a diagram showing details of the buffer and control table of the embodiment, and a shows the contents of the copy modification control table (CMCT), the relationship between this table and the copy modification buffer (CMB), and the page buffer control table (CMCT). PBCT) and the relationship between the table and the page buffer (PB), b indicates the data format of the copy modification buffer (CMB), and c indicates the data format of the page buffer (PB).

Numbers 3 to 6 in FIG. 2a are the same as those in FIG. 1, and the character data groups in b and c include horizontal skip data in addition to character data.

In FIG. 1, original data (character strings such as original sentences) is stored in the original data area 3 in the memory 2 on a page-by-page basis, and other characters and character strings are stored in the buffer memory 7 line by line. After being inserted and edited, it is developed as a dot pattern in the image memory 8, and this is output and printed.

At this time, the characters to be inserted into the original data stored in the page buffer 3 are stored in the copy modification buffer 6 as copy modification data. As shown in FIG. 2a, each of these data areas has its start address managed by a control table (CMCT5, RBCT4) corresponding to each buffer. These control tables
CMCT5 and RBCT4 further have various control information as shown in FIG. 2a, and copy modification is controlled by these.

FIG. 3 is a diagram for explaining an example of a data format, where a indicates the format of character data (6 bytes), and b indicates the format of horizontal skip data (6 bytes). In Figure 3, at a
HPS represents character width, and CGA represents character pattern address. on the other hand,
HPS in b is the dot position from the left end.

Copy modification is performed by the following processing procedure.

Calculate and set the relative position from the left end (HSP value) indicating the print position for one line of blank character data and each blank character data in the buffer memory.

Next, when writing each character data of PB data to the buffer memory, based on the character width of the character and the relative position information from the left of the character, the relative position from the left edge of the character immediately following it (HSP value)
is determined and stored in the buffer memory.

For lines that require copy modification, when storing each character data of the character string data to be replaced in the corresponding location in the buffer memory based on the copy modification control table, the character width of the character and from the left of the character Based on the relative position information of
value) and stores it in the buffer memory.

In this way, in the present invention, when editing a character string on the buffer memory, the horizontal position information of each character is always maintained correctly, so even if the character string contains skip data, the original Even when characters with different sizes are inserted many times and the position of the characters changes in a complex manner, the position of each character is clear and the character string can be accurately expanded into image memory. This allows for a variety of editing of character strings.

[Effects of the Invention] As explained above, according to the present invention, when editing a character string to be printed, position information is attached to each character in the character string, and this is used to determine the position of the character by editing etc. Since the control is performed to update each time a condition for moving occurs, the position where characters should be printed can be reliably managed, making complex editing of character strings that was previously impossible possible. There is an advantage that this method can be used, and a high-performance printing device can be realized, so the effect is great.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG.
The figure is a diagram showing details of the buffer and control table of the embodiment, and FIG. 3 is a diagram explaining an example of the data format. DESCRIPTION OF SYMBOLS 1... Control unit, 2... Memory, 3... Page buffer, 4... Page buffer control table, 5
...Copy modification control table, 6...Copy modification buffer, 7...Buffer memory, 8...Image memory.

Claims (1)

[Claims] 1. In a printing position control method that has an image memory that stores character patterns to be printed in bit correspondence, and prints by replacing part of a character string with another character string, The character data of the character string to be replaced has information indicating the character width of each character, and the horizontal skip data included in the character string has horizontal position information, and is expanded to image memory for printing. When storing the original character string and the character string to replace a part of the original character string in a buffer for editing character examples before editing, the information representing the character width and the horizontal position are stored each time. A method for controlling the horizontal position of printed characters, characterized in that relative position information from the left end of each character is generated based on information and added to each character.