preprocessor

In computer science, a preprocessor is a program that processes its input data to produce output that is used as input to another program. The output is said to be a preprocessed form of the input data, which is often used by some subsequent programs like compilers. The amount and kind of processing done depends on the nature of the preprocessor; some preprocessors are only capable of performing relatively simple textual substitutions and macro expansions, while others have the power of fully-fledged programming languages.
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A program invoked by various compilers to process code before compilation. For example, the C preprocessor, cpp, handles textual macro substitution, conditional compilation and inclusion of other files. A preprocessor may be used to transform a program into a simpler language, e.g. to transform C++ into C.
(1994-11-09)

preprocessor
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PREELABORATORE. PREPROCESSORE