preprocessor:
A program that processes input data to produce output that is used as input to another program. Use this tag for questions about an unspecified pre-processor. If there is a specific tag for the pre-processor you should use that. Consider using [tag:c-preprocessor], [tag:boost-preprocessor], [tag:oracle-pro-c], [tag:css-preprocessor], [tag:karma-babel-preprocessor], [tag:m4]