JPH0368028A - Picture phrase analyzing system - Google Patents

Abstract

PURPOSE:To only add a syntax analytic processig of one part in the case of adding the syntax analytic processing, and to eliminate the need of the massive correction quantity and the time by arranging a picture character-string so as to collect the continuous same picture characters to one. CONSTITUTION:On a picture phrase analyzing part 10 for analyzing an inputted picture character-string, a table 2 is provided,and with respect to the inputted picture character-string, the continuous same picture character are collected to one and stored in this table 2. Also, in the table 2, a character and the length of the character are stored. On a syntax analyzing part, two of 3 and 4 are provided. A first syntax analyzing part 3 analyzes a picture character which is readout of the table 2 at the time of regular operation. On the other hand, the analyzing part 4 executes a syntax analysis when the picture character-string added or changed later is the combination of the same character racters, in the case the picture character-string added or changed newly is inputted.

Description

[Detailed Description of the Invention] [Summary] Regarding the picture (PICTURE) phrase analysis method of the compiler, the purpose is to easily and quickly perform picture phrase analysis. On the other hand, the present invention is equipped with a table that stores consecutive same picture characters as one, and a first parsing unit that analyzes picture characters read from the table during normal operation. The structure is such that when the strings have the same combination of characters, a second syntax analysis section provided separately from the first syntax analysis section performs syntax analysis.

[Industrial Field of Application] The present invention is a compiler picture (PI CTURE).
) Concerning phrase analysis methods.

Here, the picture phrase refers to a phrase that defines the area length and attributes of data (for example, the distinction between alphabetic characters and numbers) in the data definition of rcOBOL.

With the diversification of computer systems in recent years, software development has come to take an enormous amount of time. However, it is a waste of time to create new software every time a software function is added or changed. Therefore, it is necessary to create software that allows functions to be added or changed by small modifications as much as possible.

[Prior Art] FIG. 4 is an explanatory diagram of a conventional method. The picture character string enters the picture phrase analyzer 1. Picture phrase analysis unit]
A syntactic analysis unit 1a is built inside. The picture character string input to the picture phrase analysis unit 1 is parsed by the syntactic analysis unit 1a and output. Here, when adding or modifying functions of the compiler, especially in the picture analysis section 1, when adding picture characters, the number of combinations of picture characters that already exist in the picture string and the picture characters to be added is Syntax analysis was performed by the syntax analysis unit 1a.

[Problems to be Solved by the Invention] For example, assume that the input picture character string "1(3)1" is input. Here, the meaning of the picture character string "1 (3) 1." is "1 continues three times, then 1 continues. In other words, 1 continues four times."

For example, if you want to continue a character string such as " !, and the amount of correction and time required for parsing was enormous.

The present invention has been made in view of these problems, and an object of the present invention is to provide a picture phrase analysis method that allows picture phrase analysis to be performed simply and quickly.

[Means for Solving the Problems] FIG. 1 is a block diagram of the principle of the present invention. In the figure,
10 is a picture phrase analysis unit that analyzes the input picture character string; 2 is a table in the picture phrase analysis unit 10 that stores consecutive same picture characters together as one for the input picture character string. . The table 2 stores characters and the lengths of the characters. 3 is a first parsing unit that analyzes picture characters read from Table 2 during normal operation (when a character string that has already been parsed is input); 4 is a part that analyzes picture characters that have been newly added or changed; A second syntax analysis unit that performs syntax analysis separately from the first syntax analysis unit 3 when a picture character string that is input or later added or changed has the same combination of characters. .

[Organize the picture character strings in action table 2 so that consecutive same picture characters are grouped together.

As a result, the syntactic analysis process of a picture character string consisting of only one picture character is performed by the second syntactic analysis processing unit 4 which is separate and independent from the existing syntactic analysis processing unit 3.

Therefore, when adding parsing processing to a picture string consisting of only one picture character, it is only necessary to add parsing processing in one place, and the huge amount of corrections and time required are completely unnecessary. .

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIGS. 2 and 3 are block diagrams showing one embodiment of the present invention. FIG. 2 shows the flow of parsing processing for an existing picture string, and FIG. 3 shows the flow of parsing processing for a newly added picture string.

First, the embodiment shown in FIG. 2 will be described. Here, a picture character string "X(10)" is included as a picture character string. The meaning of this character string is "Repeat the letter X 10 times." Therefore, the letter X
The length of is 10 (see Table 2). Since this character string already exists, it enters the first parsing unit 3 and is parsed.

On the other hand, in the embodiment shown in FIG. 3, the character string 1 (1) 1 is included as the picture character string. The meaning of this character string is "add 1 after repeating the number 1 once."

Therefore, the length of character 1 is 2. Since this character string is a newly added character string, it does not pass through the first syntax analysis unit 3, but enters the second syntax analysis unit 4 and is parsed. The syntax analysis in this case does not affect the first syntax analysis unit 3. Therefore, the time required for the parsing process is completed in one process, so that the processing time can be significantly shortened.

In the above description, a newly added picture character string to be subjected to the second syntactic analysis has been described, but the same can be applied to the case where the picture character string is changed.

[Effects of the Invention] As described above in detail, according to the present invention, the addition of syntactic analysis processing for a picture phrase consisting only of picture characters to be added or changed can be performed in one place using the second syntactic analysis unit. Therefore, picture phrase analysis can be performed easily and quickly.

[Brief explanation of drawings]

Figure 1 is a block diagram of the principle of the present invention. 2 and 3 are block diagrams showing an embodiment of the present invention, FIG. 4 is an explanatory diagram of the conventional method. In Figure 1, 2 is a table, 3.4 is the syntax analysis section, 10 is a picture phrase analysis section.

Claims (1)

[Claims] The picture phrase analysis unit (10) includes a table (2) for storing consecutive same picture characters together as one for an input picture character string; a first syntactic analysis unit (3) that analyzes picture characters read from the first syntax analysis unit (2); A picture phrase analysis method characterized in that a second syntactic analysis unit (4) provided separately from the above (3) performs syntactic analysis.