Script realization method using compiler

Abstract

The invention discloses a script realization method using a compiler. The method comprises the following steps of: firstly, preprocessing a script written by a user to generate a temporary file; then using the compiler to compile the temporary file generated by the script to generate a dynamic link library which can be called by a main program; finally when the main program is operated, loading the dynamic library; and when the main program needs to call the script, finding a script function corresponding to the script from the dynamic link library. The script of the user is directly compiled into an executable code through the method, and the execution efficiency of the program is increased compared with the traditional scheme for carrying out interpretive execution to the script. The user can be allowed to directly use various grammar rules of standard languages in the script, so that configuration software is simple and is easy to operate, and meanwhile, the flexibility and the expandability of the software are greatly increased.

Description

technical field [0001] The invention belongs to the technical field of development and operation of industrial configuration software, and in particular relates to a script realization method using a compiler. Background technique [0002] With the rapid improvement of industrial automation level and the wide application of computers in the industrial field, people have higher and higher requirements for industrial automation. The application of various control equipment and process monitoring devices in the industrial field makes industrial control software more and more complex. At this time, if the programming language is used to directly develop the system, although it can meet various complex requirements and ensure high enough execution efficiency, it faces problems such as difficult development, long development cycle, and poor code reusability. So configuration software came into being. Configuration software refers to some special software for data acquisition and...

AI Technical Summary

Problems solved by technology

The former increases the difficulty of learning for users, and users need to re-learn new scripting rules, and the grammar rules customized by the configuration software usually have relatively simple functions, which are difficult to compare with the functions provided by standard languages; while the latter also use standard languages Provides grammatical rules, but the problem is that user scripts are interpreted and executed at runtime, so the operating efficiency is usually low, and it cannot meet some industrial control applications that require relatively high speed.

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