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The Macro Processor is based on the concept of Macro Assembly language. The research in this programming language has led to a powerful tool in assisting programmers by providing a more efficient programming environment.
In this research, the Turbo Pascal language is used to implement a macro processor for BASIC programming language. The source program in BASIC is fed into the macro processor. The macro calls are scanned and the corresponding macro definitions are obtained to replace the macro calls. A new version of the BASIC program is generated.
The theories developed in the past are summarized. Basic knowledge of Pascal and BASIC programming languages are briefly presented. The hierarchy chart of the macro processor is given. The procedures and functions are explained in detail by example. The implemented BASIC macro processor in Pascal is attached.