JPH02264332A - Retrieving and registering system for alphabetic name - Google Patents

Abstract

PURPOSE:To remarkably shorten retrieving time by retrieving a common alphabetic name table for an inter-task common alphabetic name, and retrieving only an alphabetic name table generated by a compiler for the alphabetic name other than the common alphabetic name. CONSTITUTION:When a source program 5 is given, and the compiler 1 is started, an alphabetic name identification means 2 is accessed. The accessed alphabetic name identification means 2 reads in the alphabetic name, and judges whether the read alphabetic name is the inter-task common alphabetic name or not. In the case of the common alphabetic name, it starts an alphabetic name retrieving means 3, and delivers the control to it. When the read alphabetic name is not be inter-task common alphabetic name, it starts an alphabetic name registering means 4, and delivers the control to it. The alphabetic name retrieving means 3 retrieves the inter-task common alphabetic name table 6 about the read alphabetic name, and judges whether this alphabetic name exists or not.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for searching and registering alphabetic names in a compiler of an electronic computer system.

[Conventional technology]

Alphabetic names appearing in a source program are managed by an alphabetic name table, and the compiler refers to the alphabetic name table to obtain necessary information and updates the alphabetic name table as necessary. In addition, computer systems are also provided that employ common alphabetic character names between tasks that can be used in common among multiple tasks. It is managed by a common alphabetic name table.

Conventionally, in a computer system that has a data area common between tasks that is managed by the above-mentioned table of common alphabetic characters between tasks, when a compiler reads a source program and detects an alphabetic name, it detects the existing alphabetic characters common between tasks. All name tables and alphabet name tables generated by the compiler are searched, and if the name is not found, the alphabet name is newly registered in the alphabet name table generated by the compiler for future reference.

[Problem to be solved by the invention]

In the conventional alphabet name search and registration method described above, all existing inter-task alphabet name tables and the alphabet name table generated by the compiler are searched for the alphabet name that appears in the source program. Save,
If a plurality of these tables exist and there are a large number of search targets, the search time becomes enormous and the time required for compilation increases.

The present invention has been proposed in view of the above points, and its purpose is to provide a method for searching and registering alphabetic names that can shorten table search time.

[Means to solve the problem]

In order to achieve the above object, the present invention has a compiler in a computer system having a common data area between tasks managed by a common alphabetic character name table between tasks. an alphabetical identification means for identifying whether or not a name is a common alphabetical name among tasks, and a table of alphabetic character names common among tasks when the alphabetical name is a common alphabetic name among tasks as a result of identification by the alphabetic identification means; an alphabetical search means for searching whether or not the alphabetic name exists in the alphabetical character; The apparatus is provided with an alphabet name registration means for searching an alphabet name table generated by the compiler when the alphabet name does not exist, and registering the alphabet name in the alphabet name table when the alphabet name does not exist.

[Effect]

In the alphabetic name search/registration method of the present invention, the alphabetic identification means inputs a source program and identifies whether or not the alphabetic name included in the source program is an alphabetic name common among tasks; As a result of the identification by the alphabetical identification means, if the alphabetical name is a common alphabetical name among tasks, the alphabetical search means searches whether or not the alphabetical name exists in the alphabetical name common among tasks; The alphabetic name registration means generates an alphabetic name table generated by the compiler when the alphabetical name is not a common alphabetic name among tasks as a result of the identification by the alphabetic identification means or when the alphabetic name does not exist as a result of the search by the alphabetical search means. At the same time as searching, if the alphabetical name does not exist as a result of the search, the alphabetical name is registered in the alphabetic name table.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a compiler to which the alphabet name search/registration method of the present invention is applied, and only portions related to the present invention are shown. Note that in the figure, solid lines with arrows indicate the flow of processing, and broken lines indicate the flow of data.

In FIG. 1, a compiler 1 includes an alphabetic identification means 2 and an alphabetic search means 3 in addition to the well-known configuration for performing compilation.
and alphabet name registration means 4. In addition, 5 is a source program to be compiled, 6 is a common alphabet name table between tasks that manages a data area common between tasks,
7 is an alphabet name table generated by compiler l. Note that the functions of each means of the compiler 1 are as follows.

Alphabetic name registration means 2: Function for inputting the source program 5 and identifying whether or not the alphanumeric name included in the source program 5 is a common alphanumeric name among tasks.

Details of the process are shown in FIG.

Alphabetic name registration means 3: If the result of the identification by the alphabetic name identification means 2 is that the alphabetic name is a common alphabetical name among tasks, search whether or not the alphabetical name exists in the common alphabetical name among tasks table 6. function. Details of the process are shown in FIG.

Alphabetical name registration means 4; As a result of the identification by the alphabetical identification means 2, if the alphabetic character name is not a common alphabetical name among tasks, or as a result of the search by the alphabetic character search means 3, the protruding character name is added to the common alphabetic character name table 6 among tasks. A function that searches the alphabetic name table 7 if the name does not exist, and registers the alphabetic name in the alphabetic name table 7 if it does not exist. Details of the process are shown in FIG.

The operation of the above embodiment will be explained below.

First, it is assumed that the inter-task common alphabet name table 6 has been created using a predetermined tool. Further, in the source program 5, special characters are added to the beginning of the alphabetic character names common among tasks so that the alphabetic character names common among tasks can be easily identified.

Thus, when the source program 5 is given and the compiler 1 is activated, the compiler 1 calls the alphabetic character identification means 2.

As shown in FIG. 2, the called alphabetic salt identifying means 2 inputs the source program 5 and reads the alphabetical salt (step 21), and then determines that the read alphabetical salt is the common alphabetical name among tasks. (Step 22) If the result of the 0 judgment is that the read alphabetic character name is a common alphabetical name among tasks (
If YES in step 22), the alphabetical salt search means 3 is activated and control is passed (step 23), and as a result of the judgment,
If the read alphabetical name is not a common alphabetic name among tasks (No in step 22), the alphabetic name registration means 4 is activated and control is passed (step 24).

As shown in FIG. 3, the alphabetic character search unit 3 activated in step 23 of FIG.
), it is determined whether the alphabetic character exists (step 32). As a result of the judgment, if the corresponding alphabet salt exists (
If YES in step 32), information for the alphabetic character is acquired (step 33), and the acquired information is used for compilation processing. Further, as a result of the judgment, if the corresponding alphabet name does not exist (No in step 32), the alphabet name registration means 4 is activated and control is passed (step 3).
4).

As shown in FIG. 4, the alphabet name registration means 4 activated in step 24 of FIG. 2 and step 34 of FIG. Determine whether salt is present (
Step 42) If the result of the 0 judgment is that the corresponding alphabet salt exists (YES in step 42), information for the alphabet salt is acquired (step 43), and as a result of the judgment, the corresponding alphabet salt exists. If not (No in step 42), the alphabetic character is registered in the alphabetical name table 7.

By performing the above processing for all of the source programs 5, all processing is completed.

〔Effect of the invention〕

As explained above, in the search/registration method for alphabetic characters of the present invention, for alphabetic character names common among tasks, first search the alphabetic character name table common among tasks, and only if the alphabetical character name table that is common among tasks does not exist, use the alphabetic character generated by the compiler. , the search shifts to a table, and searches only the alphabetic name table generated by the compiler for alphabetic characters other than the common alphabetical names between tasks, so all the alphabetic name tables that exist between tasks and the alphabetical name table that exist previously are searched. This has the effect that the search time can be significantly reduced compared to when searching for , and the time required for compilation can also be reduced.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the alphabetic salt search/registration method of the present invention, FIG. 2 is a flowchart of the processing of the alphabetic salt identification means in FIG. 1, and FIG. 3 is the alphabetic salt in FIG. 1. FIG. 4 is a flowchart of the processing of the search means and FIG. 4 is a flowchart of the processing of the alphabetic name registration means in FIG. In the figure, l... Compiler 2... Alphabet salt identification means 3... Alphabet salt search means 4... Alphabet name registration means 5...・Source program 6...Task common alphabet name table 7...
・・Alphabet name table

Claims (1)

[Claims] In a compiler in a computer system that has a data area common between tasks managed by a common alphabetic name table between tasks, a source program is input and the alphabetical names included in the source program are common between tasks. an alphabetic name identification means for identifying whether or not it is an alphabetic name; and if the alphabetic name is a common alphabetic name between tasks as a result of the identification by the alphabetic name identification means, the alphabetic name is stored in the intertask common alphabetic name table; an alphabetic name search means for searching for existence or not; and a result of identification by the alphabetic name identification means, if the alphabetic name is not a common alphabetic name among tasks, or a search by the alphabetic name search means that the alphabetic name does not exist. an alphabetic name registration means for searching an alphabetic name table generated by the compiler in the case where the alphabetic character name does not exist, and registering the alphabetical name in the alphabetic name table if the alphabetical name does not exist.・Registration method.