JPH0363825A - Format overlay object compression system - Google Patents

Abstract

PURPOSE:To improve compression efficiency by including the compression of a leading text and an end text, the repetitive compression of the same character, and the compression by the sharing of the same text in a system. CONSTITUTION:The system is composed of a format overlay generating means, a format overlay object compression means 1, and a format overlay compression means 2. The object compression means 1 decides the feasibility of the sharing in text unit by referring to a content developed in a storage area with the format overlay object generating means 3. The object compression means 2 decides whether or not the repeat of the same character for an object generated with the object compression means 1 is performed, and further compresses the object. In such a manner, it is possible to perform the compression in one text and the one extending over plural texts, and to improve the efficiency of the compression.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a format overlay object compression method when creating a format overlay.

[Conventional technology]

Compression of a format overlay object when generating a format overlay object includes compression of the first text, compression of the last text, and compression of repetition of the same character.

[Problem to be solved by the invention]

Conventional format overlay object compression methods compress fixed parts such as the first and last text, and compress parts limited to one text such as repeating the same character, so it is difficult to compress the parts that are limited to a single text, such as compressing the repetition of the same character. However, the disadvantage was that the compression effect could not be obtained.

The format overlay object compression method according to the present invention is characterized by improving compression efficiency by sharing the same text in addition to the conventional format overlay object compression method.

[Means to solve the problem]

In order to solve the shortcomings of conventional object compression methods, the present invention provides a format overlay object generation unit that creates a format overlay in which format overlays are stored, to be used for format overlays. After expansion, text (line) units are compared, and if the same text exists, shared line position information and the number of shared lines of the text are added to create an object.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, which comprises a form overlay generation means, a form overlay object compression means 1, and a form overlay compression means 2 using conventional techniques.

The object compression means 1 refers to the contents developed in the storage area by the format overlay object generation means and determines whether to share the text (line by line). Determine whether character repetition is used to further compress the object.

FIG. 2 is a flowchart showing the object compression means 1. Text is extracted line by line from the target line text using the format overlay object generation means (step 20).
1) Next, determine whether the extracted row is the same as another row (step 202), and if it is determined that it can be shared, set the number of shared rows (step 203) and set the row position to be shared. <Step 204>. It is determined whether all lines have been completed (step 205), and processing is performed until the end.

FIG. 3 is a flowchart showing the object compression means 2. FIG. 4 is an explanatory diagram of object compression contents. The object compression means 1 extracts text line by line (step 301), determines whether the same characters are used in the line (step 302), and if the same characters are used, information indicating that the same characters are used is extracted. Set (step 30
3) Do. The information to be set is the control character 304, the number of times the same character is repeated 305, and the repeated character 306.

〔Effect of the invention〕

As explained above, the present invention has the advantage that compression within one text and compression across multiple texts can be performed.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the invention. FIG. 2 is a flowchart of the object compression means. FIG. 3 is a flowchart of the object compression means. FIG. 4 is an explanatory diagram of object compression contents. 1... Object compression means, 2... Object compression means.

Claims (1)

[Claims] A format overlay object compression method characterized in that the generation of a format overlay object includes compression of a first text, a last text, compression of repetition of the same character, and compression by sharing the same text.