Fall-Through Syntax

[Reynolds, Walter]

In looking at the list and several examples from various places I
noticed that Fall-Through = xxx has been listed in different ways.  I
have seen "Yes" "yes" and "1"

What are the options and where would I have been able to find the logic
in the src so I could have looked myself?  Thanks.

---
Walt Reynolds
Principal Systems Security Development Engineer
Information Technology Central Services
University of Michigan
(734) 615-9438