These definitions are used for the Preprocess command which can be used to preprocess a file and show the results of hiding lines which are not to be included.
"I have a confession to make. I'm a vi user. I've tried other programmers editors
but my fingers just could not make the switch. All the text editors I tried
forced me to learn all new commands...Then I found CRiSP. I was saved, it has a
wonderful vi emulation mode.