JPH02199539A - Command identification system - Google Patents

Abstract

PURPOSE:To easily add and change a command by analyzing an input sentence, converting an analyzed command into a command specifier while referring a corresponding table and executing command processing corresponding to the converted command specifier. CONSTITUTION:Analytical processing analyzes a command or the like from an input sentence (e.g. a procedure 1) and conversion processing 5 converts the analyzed command into its corresponding command specifier while referring the corresponding table 4. Execution processing 6 executes processing corresponding to the command specifier. Commands and command specifiers are previously and correspondingly registered in the table 4, and while referring the registered contents, the command is temporarily converted into the command specifier and then processing is executed. Consequently, a command can be added/changed only by registering it in the corresponding table 4 and the command addition/ change can easily be executed.

Description

[Detailed Description of the Invention] [Summary] Regarding a command identification method for identifying commands in an interpreter, a correspondence table between command names and command specifiers is provided in the interpreter, and after the command name is once converted to a command specifier, the corresponding The purpose is to easily execute command processing to change or add command names, etc., and to analyze input sentences and to identify which command specifier corresponds to the command parsed by this analysis processing. a correspondence table for registering in advance whether the Configure it to perform command processing.

[Industrial application field]

The present invention relates to a command identification method for identifying commands in an interpreter.

[Prior art and problems to be solved by the invention] Conventionally, in an interpreter (shell), built-in commands are
As shown in FIG. 2, it is incorporated as part of the logic. For this reason, when the interpreter recognizes a built-in command, it recognizes it as a command name with - meaning, and there is a problem in that it is difficult to change or add the built-in command name.

The operation of the configuration shown in FIG. 2 will be briefly explained.

In FIG. 2, an analysis process 23 constituting an interpreter 22 into which a procedure 21 is input analyzes the characters of the procedure 21 and converts "CASE" into a command string, "A B C" into an expression, and "'WHEN'' is recognized as an option and executes CASE command processing. Corresponding to this execution, the execution process (CASE command process) 24 compares the expression "ABC" with the value specified in the selection branch, and if they match, the next written command "'CO" is executed.
MMAND1”) program and run it.

The present invention provides an interpreter with a correspondence table between command names and command specifiers, converts the command name into a command specifier, and then executes the corresponding command processing.
The purpose is to make it easy to change and add command names.

[Means to solve problems]

Means for solving the problem will be explained with reference to FIG.

In FIG. 1, analysis processing 3 consists of the input sentence (procedure
etc.) to analyze commands, etc.

The correspondence table 4 is a table in which command specifiers corresponding to commands are registered in advance.

Conversion processing 5 refers to correspondence table 4 and converts a command into a command specifier.

Execution processing 6 is for executing processing corresponding to the command specifier.

[Effect]

In the present invention, as shown in FIG. 1, an analysis process 3 analyzes a command etc. from an input sentence, a conversion process 5 converts it into a command specifier corresponding to the analyzed command by referring to a correspondence table 4, The execution process 6 causes the process corresponding to this command specifier to be executed.

Therefore, by registering the correspondence between commands and command specifiers in the correspondence table 4 in advance, and executing the process after converting them into command specifiers by referring to this, it is possible to add/change commands (for example, to add/change commands to English commands). If you want to add or change a Japanese command name to a command name, you only need to register it in the correspondence table 4, and you can easily do it.

〔Example〕

Next, the configuration and operation of one embodiment of the present invention will be sequentially explained in detail using FIG.

In FIG. 1, procedure 1 is a program written as shown.

Interpreter (shell) 2 executes procedure 1 at runtime.
is input and starts the corresponding command program 7 to execute the process, analysis process 3, correspondence table 4
, a conversion process 5, an execution process 6, etc.

Analysis process 3 analyzes the input character/symbol string of procedure 1 and converts it into a command string (e.g. 'CASE'), expression (
For example, "ABC"), options (for example, "WHEN"), etc. are analyzed and recognized.

Correspondence table 4 is a table in which command specifiers corresponding to commands are registered in advance. For example, the same command specifiers are used for "CASB" in English and "multi-choice" in Japanese, which indicate the execution of the same process. "0001" is registered in advance.Using this correspondence table 4,
The command parsed from the procedure 1 is once converted into a command specifier, and the command program 7 corresponding to this command specifier is activated. Therefore, it is possible to allocate the same command specifier to English and Japanese command names, aliases, and the like to execute the same process, making it possible to add or change commands extremely easily.

The conversion process 5 converts the command analyzed by the analysis process 3 into a command specifier by referring to the correspondence table 4.

Execution processing 6 starts a command program corresponding to the command specifier converted by conversion processing 5 and causes the command program to execute processing.

Next, the operation of the configuration shown in FIG. 1 will be explained in detail.

In FIG. 1, (1) Procedure 1 is input to interpreter 2 from a terminal or a file.

(2) Analysis process In the third step, the input procedure 1 is analyzed as a command string "CASE", an expression "A B C", a selection option "WHEN", etc.

(3) Conversion process 5 converts the command string “CA S E ” analyzed by analysis process 3 into command specifier “OOO2” with reference to correspondence table 4.

(4) Execution process 6 executes the converted command specifier '"0
002", compares the expression "A B C" with the value specified in the selection branch, and if they match, launches and executes the command program corresponding to the command name written next. .

In the above procedure, if the Japanese word "manifold selection" of the command ""CASE" written in procedure 1 is set as a new command, the corresponding "manifold selection" will be included in the correspondence table 4.
By a simple operation of registering the command specifier "0002" in association with the command specifier "0002", it is possible to execute the process for "manifold selection".

〔Effect of the invention〕

As explained above, according to the present invention, a configuration is adopted in which commands and command specifiers are registered in correspondence table 4 in advance, and the process is executed after the commands are referred to and converted into command specifiers. Therefore, commands can be easily added/changed (for example, adding or changing Japanese command names to English command names).

[Brief explanation of the drawing]

FIG. 1 shows the configuration of one embodiment of the present invention, and FIG. 2 shows an explanatory diagram of the prior art. In the figure, 1 is the procedure, 2 is the interpreter (shell),
3 represents an analysis process, 4 represents a correspondence table, 5 represents a conversion process, 6 represents an execution process, and 7 represents a command program.

Claims (1)

[Claims] In a command identification method for identifying commands using an interpreter, there is an analysis process (3) that analyzes an input sentence, and which command specifier the command analyzed by this analysis process (3) corresponds to. A conversion process (5) that refers to the correspondence table (4) and converts the command analyzed by the above analysis process (3) into a command specifier. A command identification method characterized by being configured to execute command processing corresponding to a command specifier converted by conversion processing (5).