Program that processes its input data to produce output that is used as input to another program(noun)
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Use "preprocessor" in a sentence
"#include is known as a preprocessor directive, which is used to load files .. indicate the start and end of file name to be loaded .. you can use "" quotes too instead of"
"What about something like a #pragma preprocessor that would involve a string so that when the user uploaded the code to LP, LP would recognize it and enable Rosetta translations automatically?"
"Also, maybe I could write a preprocessor to replace any comments with white space."