1 Overview🔗

 (require preprocessor/pp-run) package: preprocessor

The preprocessors can be invoked from Racket programs, but the main usage should be through the launchers. Both launchers use code from preprocessor/pp-run that allows a special invocation mode through the --run flag.

The --run is a convenient way of making the preprocessors cooperate with some other command, making it possible to use preprocessed text without an additional glue script or a makefile. The following examples use mzpp, but they work with mztext too. --run uses a single argument which is a string specifying a command to run:

If an executed command fails with a return status different than 0, the preprocessor execution will signal a failure by returning 1.