Stacks another preprocessor (that is, specifies that the source input to this preprocessor is to come from another preprocessor rather than the source file itself).
>>--.--PREPROCESS"name"-.----------------.--.--><
| +-preproc-params-+ |
+-NO-PREPROCESS-------------------------+| name | The name of the preprocessor |
| preproc-params | One or more of the optional preprocessor parameters |
| Default: | NOPREPROCESS |